Update version and changelog for release

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

.dir-locals.el

@@ -1,2 +0,0 @@
-((c-mode . ((c-file-style . "stroustrup")
-	    (indent-tabs-mode . nil))))

.exrc

@@ -1,7 +0,0 @@
-"VIM settings to match QEMU coding style.  They are activated by adding the
-"following settings (without the " symbol) as last two lines in $HOME/.vimrc:
-"set secure
-"set exrc
-set expandtab
-set shiftwidth=4
-set smarttab

.gdbinit

@@ -1,8 +0,0 @@
-# GDB may have ./.gdbinit loading disabled by default.  In that case you can
-# follow the instructions it prints.  They boil down to adding the following to
-# your home directory's ~/.gdbinit file:
-#
-#   add-auto-load-safe-path /path/to/qemu/.gdbinit
-
-# Load QEMU-specific sub-commands and settings
-source scripts/qemu-gdb.py

.gitignore

@@ -1,133 +1,51 @@
-/config-devices.*
-/config-all-devices.*
-/config-all-disas.*
-/config-host.*
-/config-target.*
-/config.status
-/config-temp
-/trace-events-all
-/trace/generated-events.h
-/trace/generated-events.c
-/trace/generated-helpers-wrappers.h
-/trace/generated-helpers.h
-/trace/generated-helpers.c
-/trace/generated-tcg-tracers.h
-/ui/shader/texture-blit-frag.h
-/ui/shader/texture-blit-vert.h
-*-timestamp
-/*-softmmu
-/*-darwin-user
-/*-linux-user
-/*-bsd-user
-/ivshmem-client
-/ivshmem-server
-/libdis*
-/libuser
-/linux-headers/asm
-/qga/qapi-generated
-/qapi-generated
-/qapi-types.[ch]
-/qapi-visit.[ch]
-/qapi-event.[ch]
-/qmp-commands.h
-/qmp-introspect.[ch]
-/qmp-marshal.c
-/qemu-doc.html
-/qemu-doc.info
-/qemu-doc.txt
-/qemu-img
-/qemu-nbd
-/qemu-options.def
-/qemu-options.texi
-/qemu-img-cmds.texi
-/qemu-img-cmds.h
-/qemu-io
-/qemu-ga
-/qemu-bridge-helper
-/qemu-monitor.texi
-/qemu-monitor-info.texi
-/qemu-version.h
-/qemu-version.h.tmp
-/module_block.h
-/vscclient
-/fsdev/virtfs-proxy-helper
-*.[1-9]
+config-devices.*
+config-all-devices.*
+config-host.*
+config-target.*
+i386
+*-softmmu
+*-darwin-user
+*-linux-user
+*-bsd-user
+libhw32
+libhw64
+libuser
+qemu-doc.html
+qemu-tech.html
+qemu-doc.info
+qemu-tech.info
+qemu.1
+qemu.pod
+qemu-img.1
+qemu-img.pod
+qemu-img
+qemu-nbd
+qemu-nbd.8
+qemu-nbd.pod
+qemu-options.texi
+qemu-img-cmds.texi
+qemu-img-cmds.h
+qemu-io
+qemu-monitor.texi
+.gdbinit
 *.a
 *.aux
 *.cp
+*.dvi
 *.exe
-*.msi
-*.dll
-*.so
-*.mo
 *.fn
 *.ky
 *.log
-*.pdf
-*.pod
-*.cps
-*.fns
-*.kys
 *.pg
-*.pyc
 *.toc
 *.tp
 *.vr
 *.d
-!/scripts/qemu-guest-agent/fsfreeze-hook.d
 *.o
-.sdk
-*.gcda
-*.gcno
-/pc-bios/bios-pq/status
-/pc-bios/vgabios-pq/status
-/pc-bios/optionrom/linuxboot.asm
-/pc-bios/optionrom/linuxboot.bin
-/pc-bios/optionrom/linuxboot.raw
-/pc-bios/optionrom/linuxboot.img
-/pc-bios/optionrom/linuxboot_dma.asm
-/pc-bios/optionrom/linuxboot_dma.bin
-/pc-bios/optionrom/linuxboot_dma.raw
-/pc-bios/optionrom/linuxboot_dma.img
-/pc-bios/optionrom/multiboot.asm
-/pc-bios/optionrom/multiboot.bin
-/pc-bios/optionrom/multiboot.raw
-/pc-bios/optionrom/multiboot.img
-/pc-bios/optionrom/kvmvapic.asm
-/pc-bios/optionrom/kvmvapic.bin
-/pc-bios/optionrom/kvmvapic.raw
-/pc-bios/optionrom/kvmvapic.img
-/pc-bios/s390-ccw/s390-ccw.elf
-/pc-bios/s390-ccw/s390-ccw.img
-/docs/qemu-ga-qapi.texi
-/docs/qemu-ga-ref.html
-/docs/qemu-ga-ref.info*
-/docs/qemu-ga-ref.txt
-/docs/qemu-qmp-qapi.texi
-/docs/qemu-qmp-ref.html
-/docs/qemu-qmp-ref.info*
-/docs/qemu-qmp-ref.txt
-/docs/version.texi
-*.tps
+.pc
+patches
+pc-bios/bios-pq/status
+pc-bios/vgabios-pq/status
+pc-bios/optionrom/multiboot.bin
+pc-bios/optionrom/multiboot.raw
 .stgit-*
-cscope.*
-tags
-TAGS
-docker-src.*
-*~
-trace.h
-trace.c
-trace-ust.h
-trace-ust.h
-trace-dtrace.h
-trace-dtrace.dtrace
-trace-root.h
-trace-root.c
-trace-ust-root.h
-trace-ust-root.h
-trace-ust-all.h
-trace-ust-all.c
-trace-dtrace-root.h
-trace-dtrace-root.dtrace
-trace-ust-all.h
-trace-ust-all.c

.gitmodules

@@ -1,39 +1,6 @@
 [submodule "roms/vgabios"]
 	path = roms/vgabios
-	url = git://git.qemu-project.org/vgabios.git/
+	url = ../vgabios.git
 [submodule "roms/seabios"]
 	path = roms/seabios
-	url = git://git.qemu-project.org/seabios.git/
-[submodule "roms/SLOF"]
-	path = roms/SLOF
-	url = git://git.qemu-project.org/SLOF.git
-[submodule "roms/ipxe"]
-	path = roms/ipxe
-	url = git://git.qemu-project.org/ipxe.git
-[submodule "roms/openbios"]
-	path = roms/openbios
-	url = git://git.qemu-project.org/openbios.git
-[submodule "roms/openhackware"]
-	path = roms/openhackware
-	url = git://git.qemu-project.org/openhackware.git
-[submodule "roms/qemu-palcode"]
-	path = roms/qemu-palcode
-	url = git://github.com/rth7680/qemu-palcode.git
-[submodule "roms/sgabios"]
-	path = roms/sgabios
-	url = git://git.qemu-project.org/sgabios.git
-[submodule "pixman"]
-	path = pixman
-	url = git://anongit.freedesktop.org/pixman
-[submodule "dtc"]
-	path = dtc
-	url = git://git.qemu-project.org/dtc.git
-[submodule "roms/u-boot"]
-	path = roms/u-boot
-	url = git://git.qemu-project.org/u-boot.git
-[submodule "roms/skiboot"]
-	path = roms/skiboot
-	url = git://git.qemu.org/skiboot.git
-[submodule "roms/QemuMacDrivers"]
-	path = roms/QemuMacDrivers
-	url = git://git.qemu.org/QemuMacDrivers.git
+	url = ../seabios.git

.mailmap

@@ -1,17 +0,0 @@
-# This mailmap just translates the weird addresses from the original import into git
-# into proper addresses so that they are counted properly in git shortlog output.
-#
-Andrzej Zaborowski <balrogg@gmail.com> balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>
-Anthony Liguori <anthony@codemonkey.ws> aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>
-Anthony Liguori <anthony@codemonkey.ws> Anthony Liguori <aliguori@us.ibm.com>
-Aurelien Jarno <aurelien@aurel32.net> aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>
-Blue Swirl <blauwirbel@gmail.com> blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162>
-Edgar E. Iglesias <edgar.iglesias@gmail.com> edgar_igl <edgar_igl@c046a42c-6fe2-441c-8c8c-71466251a162>
-Fabrice Bellard <fabrice@bellard.org> bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>
-Jocelyn Mayer <l_indien@magic.fr> j_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162>
-Paul Brook <paul@codesourcery.com> pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
-Thiemo Seufer <ths@networkno.de> ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>
-malc <av1474@comtv.ru> malc <malc@c046a42c-6fe2-441c-8c8c-71466251a162>
-# There is also a:
-#    (no author) <(no author)@c046a42c-6fe2-441c-8c8c-71466251a162>
-# for the cvs2svn initialization commit e63c3dc74bf.

.shippable.yml

@@ -1,21 +0,0 @@
-language: c
-env:
-  matrix:
-    - IMAGE=debian-armhf-cross
-      TARGET_LIST=arm-softmmu,arm-linux-user
-    - IMAGE=debian-arm64-cross
-      TARGET_LIST=aarch64-softmmu,aarch64-linux-user
-    - IMAGE=debian-s390x-cross
-      TARGET_LIST=s390x-softmmu,s390x-linux-user
-build:
-  pre_ci:
-    - make docker-image-${IMAGE}
-  pre_ci_boot:
-    image_name: qemu
-    image_tag: ${IMAGE}
-    pull: false
-    options: "-e HOME=/root"
-  ci:
-    - unset CC
-    - ./configure ${QEMU_CONFIGURE_OPTS} --target-list=${TARGET_LIST}
-    - make -j2

.travis.yml

@@ -1,194 +0,0 @@
-sudo: false
-language: c
-python:
-  - "2.4"
-compiler:
-  - gcc
-cache: ccache
-addons:
-  apt:
-    packages:
-      # Build dependencies
-      - libaio-dev
-      - libattr1-dev
-      - libbrlapi-dev
-      - libcap-ng-dev
-      - libgnutls-dev
-      - libgtk-3-dev
-      - libiscsi-dev
-      - liblttng-ust-dev
-      - libnfs-dev
-      - libncurses5-dev
-      - libnss3-dev
-      - libpixman-1-dev
-      - libpng12-dev
-      - librados-dev
-      - libsdl1.2-dev
-      - libseccomp-dev
-      - libspice-protocol-dev
-      - libspice-server-dev
-      - libssh2-1-dev
-      - liburcu-dev
-      - libusb-1.0-0-dev
-      - libvte-2.90-dev
-      - sparse
-      - uuid-dev
-
-# The channel name "irc.oftc.net#qemu" is encrypted against qemu/qemu
-# to prevent IRC notifications from forks. This was created using:
-# $ travis encrypt -r "qemu/qemu" "irc.oftc.net#qemu"
-notifications:
-  irc:
-    channels:
-      - secure: "F7GDRgjuOo5IUyRLqSkmDL7kvdU4UcH3Lm/W2db2JnDHTGCqgEdaYEYKciyCLZ57vOTsTsOgesN8iUT7hNHBd1KWKjZe9KDTZWppWRYVwAwQMzVeSOsbbU4tRoJ6Pp+3qhH1Z0eGYR9ZgKYAoTumDFgSAYRp4IscKS8jkoedOqM="
-    on_success: change
-    on_failure: always
-env:
-  global:
-    - TEST_CMD="make check"
-  matrix:
-    - CONFIG=""
-    - CONFIG="--enable-debug --enable-debug-tcg --enable-trace-backends=log"
-    - CONFIG="--disable-linux-aio --disable-cap-ng --disable-attr --disable-brlapi --disable-uuid --disable-libusb"
-    - CONFIG="--enable-modules"
-    - CONFIG="--with-coroutine=ucontext"
-    - CONFIG="--with-coroutine=sigaltstack"
-git:
-  # we want to do this ourselves
-  submodules: false
-before_install:
-  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew update ; fi
-  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew install libffi gettext glib pixman ; fi
-  - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
-  - git submodule update --init --recursive
-before_script:
-  - ./configure ${CONFIG}
-script:
-  - make -j3 && ${TEST_CMD}
-matrix:
-  include:
-    # Test with CLang for compile portability
-    - env: CONFIG=""
-      compiler: clang
-    # gprof/gcov are GCC features
-    - env: CONFIG="--enable-gprof --enable-gcov --disable-pie"
-      compiler: gcc
-    # We manually include builds which we disable "make check" for
-    - env: CONFIG="--enable-debug --enable-tcg-interpreter"
-           TEST_CMD=""
-      compiler: gcc
-    - env: CONFIG="--enable-trace-backends=simple"
-           TEST_CMD=""
-      compiler: gcc
-    - env: CONFIG="--enable-trace-backends=ftrace"
-           TEST_CMD=""
-      compiler: gcc
-    - env: CONFIG="--enable-trace-backends=ust"
-           TEST_CMD=""
-      compiler: gcc
-    - env: CONFIG=""
-      os: osx
-      compiler: clang
-    # Plain Trusty System Build
-    - env: CONFIG="--disable-linux-user"
-      sudo: required
-      addons:
-      dist: trusty
-      compiler: gcc
-      before_install:
-        - sudo apt-get update -qq
-        - sudo apt-get build-dep -qq qemu
-        - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
-        - git submodule update --init --recursive
-    # Plain Trusty Linux User Build
-    - env: CONFIG="--disable-system"
-      sudo: required
-      addons:
-      dist: trusty
-      compiler: gcc
-      before_install:
-        - sudo apt-get update -qq
-        - sudo apt-get build-dep -qq qemu
-        - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
-        - git submodule update --init --recursive
-    # Trusty System build with latest stable clang
-    - sudo: required
-      addons:
-      dist: trusty
-      language: generic
-      compiler: none
-      env:
-        - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
-        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9"
-      before_install:
-        - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
-        - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'
-        - sudo apt-get update -qq
-        - sudo apt-get install -qq -y clang-3.9
-        - sudo apt-get build-dep -qq qemu
-        - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
-        - git submodule update --init --recursive
-      before_script:
-        - ./configure ${CONFIG} || cat config.log
-    # Trusty Linux User build with latest stable clang
-    - sudo: required
-      addons:
-      dist: trusty
-      language: generic
-      compiler: none
-      env:
-        - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
-        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9"
-      before_install:
-        - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
-        - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'
-        - sudo apt-get update -qq
-        - sudo apt-get install -qq -y clang-3.9
-        - sudo apt-get build-dep -qq qemu
-        - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
-        - git submodule update --init --recursive
-      before_script:
-        - ./configure ${CONFIG} || cat config.log
-    # Using newer GCC with sanitizers
-    - addons:
-        apt:
-          sources:
-            # PPAs for newer toolchains
-            - ubuntu-toolchain-r-test
-          packages:
-            # Extra toolchains
-            - gcc-5
-            - g++-5
-            # Build dependencies
-            - libaio-dev
-            - libattr1-dev
-            - libbrlapi-dev
-            - libcap-ng-dev
-            - libgnutls-dev
-            - libgtk-3-dev
-            - libiscsi-dev
-            - liblttng-ust-dev
-            - libnfs-dev
-            - libncurses5-dev
-            - libnss3-dev
-            - libpixman-1-dev
-            - libpng12-dev
-            - librados-dev
-            - libsdl1.2-dev
-            - libseccomp-dev
-            - libspice-protocol-dev
-            - libspice-server-dev
-            - libssh2-1-dev
-            - liburcu-dev
-            - libusb-1.0-0-dev
-            - libvte-2.90-dev
-            - sparse
-            - uuid-dev
-      language: generic
-      compiler: none
-      env:
-        - COMPILER_NAME=gcc CXX=g++-5 CC=gcc-5
-        - CONFIG="--cc=gcc-5 --cxx=g++-5 --disable-pie --disable-linux-user"
-        - TEST_CMD=""
-      before_script:
-        - ./configure ${CONFIG} --extra-cflags="-g3 -O0 -fsanitize=thread -fuse-ld=gold" || cat config.log

CODING_STYLE

@@ -1,15 +1,12 @@
-QEMU Coding Style
+Qemu Coding Style
 =================
 
-Please use the script checkpatch.pl in the scripts directory to check
-patches before submitting.
-
 1. Whitespace
 
 Of course, the most important aspect in any coding style is whitespace.
 Crusty old coders who have trouble spotting the glasses on their noses
 can tell the difference between a tab and eight spaces from a distance
-of approximately fifteen parsecs.  Many a flamewar has been fought and
+of approximately fifteen parsecs.  Many a flamewar have been fought and
 lost on this issue.
 
 QEMU indents are four spaces.  Tabs are never used, except in Makefiles
@@ -31,11 +28,7 @@ Do not leave whitespace dangling off the ends of lines.
 
 2. Line width
 
-Lines should be 80 characters; try not to make them longer.
-
-Sometimes it is hard to do, especially when dealing with QEMU subsystems
-that use long function or symbol names.  Even in that case, do not make
-lines much longer than 80 characters.
+Lines are 80 characters; not longer.
 
 Rationale:
  - Some people like to tile their 24" screens with a 6x4 matrix of 80x24
@@ -43,21 +36,18 @@ Rationale:
    let them keep doing it.
  - Code and especially patches is much more readable if limited to a sane
    line length.  Eighty is traditional.
- - The four-space indentation makes the most common excuse ("But look
-   at all that white space on the left!") moot.
  - It is the QEMU coding style.
 
 3. Naming
 
 Variables are lower_case_with_underscores; easy to type and read.  Structured
-type names are in CamelCase; harder to type but standing out.  Enum type
-names and function type names should also be in CamelCase.  Scalar type
+type names are in CamelCase; harder to type but standing out.  Scalar type
 names are lower_case_with_underscores_ending_with_a_t, like the POSIX
 uint64_t and family.  Note that this last convention contradicts POSIX
 and is therefore likely to be changed.
 
-When wrapping standard library functions, use the prefix qemu_ to alert
-readers that they are seeing a wrapped version; otherwise avoid this prefix.
+Typedefs are used to eliminate the redundant 'struct' keyword.  It is the
+QEMU coding style.
 
 4. Block structure
 
@@ -75,10 +65,6 @@ keyword.  Example:
         printf("a was something else entirely.\n");
     }
 
-Note that 'else if' is considered a single statement; otherwise a long if/
-else if/else if/.../else sequence would need an indent for every else
-statement.
-
 An exception is the opening brace for a function; for reasons of tradition
 and clarity it comes on a line by itself:
 
@@ -90,36 +76,3 @@ and clarity it comes on a line by itself:
 Rationale: a consistent (except for functions...) bracing style reduces
 ambiguity and avoids needless churn when lines are added or removed.
 Furthermore, it is the QEMU coding style.
-
-5. Declarations
-
-Mixed declarations (interleaving statements and declarations within
-blocks) are generally not allowed; declarations should be at the beginning
-of blocks.
-
-Every now and then, an exception is made for declarations inside a
-#ifdef or #ifndef block: if the code looks nicer, such declarations can
-be placed at the top of the block even if there are statements above.
-On the other hand, however, it's often best to move that #ifdef/#ifndef
-block to a separate function altogether.
-
-6. Conditional statements
-
-When comparing a variable for (in)equality with a constant, list the
-constant on the right, as in:
-
-if (a == 1) {
-    /* Reads like: "If a equals 1" */
-    do_something();
-}
-
-Rationale: Yoda conditions (as in 'if (1 == a)') are awkward to read.
-Besides, good compilers already warn users when '==' is mis-typed as '=',
-even when the constant is on the right.
-
-7. Comment style
-
-We use traditional C-style /* */ comments and avoid // comments.
-
-Rationale: The // form is valid in C99, so this is purely a matter of
-consistency of style. The checkpatch script will warn you about this.

Changelog

@@ -1,8 +1,40 @@
-This file documents changes for QEMU releases 0.12 and earlier.
-For changelog information for later releases, see
-http://wiki.qemu-project.org/ChangeLog or look at the git history for
-more detailed information.
+version 0.12.2:
+  - Qemu's internal TFTP server breaks lock-step-iness of TFTP (Milan Plzik)
+  - osdep.c: Fix accept4 fallback (Kevin Wolf)
+  - pc: add rombar to compat properties for pc-0.10 and pc-0.11 (Gerd Hoffmann)
+  - pci: allow loading roms via fw_cfg. (Gerd Hoffmann)
+  - roms: rework rom loading via fw (Gerd Hoffmann)
+  - fw_cfg: rom loader tweaks. (Gerd Hoffmann)
+  - roms: minor fixes and cleanups. (Gerd Hoffmann)
+  - pc: add machine type for 0.12 (Gerd Hoffmann)
+  - loader: more ignores for rom intended to be loaded by the bios (Aurelien Jarno)
+  - vnc_refresh: return if vd->timer is NULL (Stefano Stabellini)
+  - QMP: Don't free async event's 'data' (Luiz Capitulino)
+  - Handle TFTP ERROR from client (Thomas Horsten)
+  - dmg: fix ->open failure (Christoph Hellwig)
+  - virtio-pci: thinko fix (Michael S. Tsirkin)
+  - pc-bios: Update README (SeaBIOS) (Stefan Weil)
+  - vmware_vga: Check cursor dimensions passed from guest to avoid buffer overflow (Roland Dreier)
+  - remove pending exception on vcpu reset. (Gleb Natapov)
+  - Fix CPU topology initialization (Jiri Denemark)
+  - MCE: Fix bug of IA32_MCG_STATUS after system reset (Huang Ying)
+  - linuxboot: fix gdt address calculation (Avi Kivity)
+  - QMP: Drop wrong assert() (Luiz Capitulino)
+  - vnc: Fix artifacts in hextile decoding (Anthony Liguori)
+  - target-i386: Fix "call im" on x86_64 when executing 32-bit code (Aurelien Jarno)
+  - Add missing newline at the end of options list (Michael Tokarev)
+  - Don't load options roms intended to be loaded by the bios in qemu (Avi Kivity)
+  - USB: Improve usbdevice error messages (Scott Tsai)
+  - cpu-all.h: fix cpu_get_real_ticks() #ifdef (Aurelien Jarno)
+  - alpha: fix compile (Blue Swirl)
+  - user_only: compile everything with -fpie (Kirill A. Shutemov)
+  - fdc/sparc32: don't hang on detection under OBP (Artyom Tarasenko)
+  - scsi-disk: Inquiry with allocation length of CDB < 36 (v4) (Artyom Tarasenko)
+  - e1000: fix init values for command register (Michael S. Tsirkin)
 
+version 0.12.1:
+  - loader: fix rom loading at address 0 (fixes target-arm) (Aurelien Jarno)
+  - loader: fix rom_copy (fixes multiboot) (Kevin Wolf)
 
 version 0.12.0:
 
@@ -78,7 +110,7 @@ version 0.10.2:
 
   - fix savevm/loadvm (Anthony Liguori)
   - live migration: fix dirty tracking windows (Glauber Costa)
-  - live migration: improve error propagation (Glauber Costa)
+  - live migration: improve error propogation (Glauber Costa)
   - qcow2: fix image creation for > ~2TB images (Chris Wright)
   - hotplug: fix error handling for if= parameter (Eduardo Habkost)
   - qcow2: fix data corruption (Nolan Leake)
@@ -386,7 +418,7 @@ version 0.5.3:
   - support of CD-ROM change
   - multiple network interface support
   - initial x86-64 host support (Gwenole Beauchesne)
-  - lret to outer privilege fix (OS/2 install fix)
+  - lret to outer priviledge fix (OS/2 install fix)
   - task switch fixes (SkyOS boot)
   - VM save/restore commands
   - new timer API
@@ -447,7 +479,7 @@ version 0.5.0:
   - multi-target build
   - fixed: no error code in hardware interrupts
   - fixed: pop ss, mov ss, x and sti disable hardware irqs for the next insn
-  - correct single stepping through string operations
+  - correct single stepping thru string operations
   - preliminary SPARC target support (Thomas M. Ogrisegg)
   - tun-fd option (Rusty Russell)
   - automatic IDE geometry detection
@@ -531,7 +563,7 @@ version 0.1.5:
 
  - ppc64 support + personality() patch (Rusty Russell)
  - first Alpha CPU patches (Falk Hueffner)
- - removed bfd.h dependency
+ - removed bfd.h dependancy
  - fixed shrd, shld, idivl and divl on PowerPC.
  - fixed buggy glibc PowerPC rint() function (test-i386 passes now on PowerPC).
 

HACKING

@@ -1,236 +0,0 @@
-1. Preprocessor
-
-1.1. Variadic macros
-
-For variadic macros, stick with this C99-like syntax:
-
-#define DPRINTF(fmt, ...)                                       \
-    do { printf("IRQ: " fmt, ## __VA_ARGS__); } while (0)
-
-1.2. Include directives
-
-Order include directives as follows:
-
-#include "qemu/osdep.h"  /* Always first... */
-#include <...>           /* then system headers... */
-#include "..."           /* and finally QEMU headers. */
-
-The "qemu/osdep.h" header contains preprocessor macros that affect the behavior
-of core system headers like <stdint.h>.  It must be the first include so that
-core system headers included by external libraries get the preprocessor macros
-that QEMU depends on.
-
-Do not include "qemu/osdep.h" from header files since the .c file will have
-already included it.
-
-2. C types
-
-It should be common sense to use the right type, but we have collected
-a few useful guidelines here.
-
-2.1. Scalars
-
-If you're using "int" or "long", odds are good that there's a better type.
-If a variable is counting something, it should be declared with an
-unsigned type.
-
-If it's host memory-size related, size_t should be a good choice (use
-ssize_t only if required). Guest RAM memory offsets must use ram_addr_t,
-but only for RAM, it may not cover whole guest address space.
-
-If it's file-size related, use off_t.
-If it's file-offset related (i.e., signed), use off_t.
-If it's just counting small numbers use "unsigned int";
-(on all but oddball embedded systems, you can assume that that
-type is at least four bytes wide).
-
-In the event that you require a specific width, use a standard type
-like int32_t, uint32_t, uint64_t, etc.  The specific types are
-mandatory for VMState fields.
-
-Don't use Linux kernel internal types like u32, __u32 or __le32.
-
-Use hwaddr for guest physical addresses except pcibus_t
-for PCI addresses.  In addition, ram_addr_t is a QEMU internal address
-space that maps guest RAM physical addresses into an intermediate
-address space that can map to host virtual address spaces.  Generally
-speaking, the size of guest memory can always fit into ram_addr_t but
-it would not be correct to store an actual guest physical address in a
-ram_addr_t.
-
-For CPU virtual addresses there are several possible types.
-vaddr is the best type to use to hold a CPU virtual address in
-target-independent code. It is guaranteed to be large enough to hold a
-virtual address for any target, and it does not change size from target
-to target. It is always unsigned.
-target_ulong is a type the size of a virtual address on the CPU; this means
-it may be 32 or 64 bits depending on which target is being built. It should
-therefore be used only in target-specific code, and in some
-performance-critical built-per-target core code such as the TLB code.
-There is also a signed version, target_long.
-abi_ulong is for the *-user targets, and represents a type the size of
-'void *' in that target's ABI. (This may not be the same as the size of a
-full CPU virtual address in the case of target ABIs which use 32 bit pointers
-on 64 bit CPUs, like sparc32plus.) Definitions of structures that must match
-the target's ABI must use this type for anything that on the target is defined
-to be an 'unsigned long' or a pointer type.
-There is also a signed version, abi_long.
-
-Of course, take all of the above with a grain of salt.  If you're about
-to use some system interface that requires a type like size_t, pid_t or
-off_t, use matching types for any corresponding variables.
-
-Also, if you try to use e.g., "unsigned int" as a type, and that
-conflicts with the signedness of a related variable, sometimes
-it's best just to use the *wrong* type, if "pulling the thread"
-and fixing all related variables would be too invasive.
-
-Finally, while using descriptive types is important, be careful not to
-go overboard.  If whatever you're doing causes warnings, or requires
-casts, then reconsider or ask for help.
-
-2.2. Pointers
-
-Ensure that all of your pointers are "const-correct".
-Unless a pointer is used to modify the pointed-to storage,
-give it the "const" attribute.  That way, the reader knows
-up-front that this is a read-only pointer.  Perhaps more
-importantly, if we're diligent about this, when you see a non-const
-pointer, you're guaranteed that it is used to modify the storage
-it points to, or it is aliased to another pointer that is.
-
-2.3. Typedefs
-Typedefs are used to eliminate the redundant 'struct' keyword.
-
-2.4. Reserved namespaces in C and POSIX
-Underscore capital, double underscore, and underscore 't' suffixes should be
-avoided.
-
-3. Low level memory management
-
-Use of the malloc/free/realloc/calloc/valloc/memalign/posix_memalign
-APIs is not allowed in the QEMU codebase. Instead of these routines,
-use the GLib memory allocation routines g_malloc/g_malloc0/g_new/
-g_new0/g_realloc/g_free or QEMU's qemu_memalign/qemu_blockalign/qemu_vfree
-APIs.
-
-Please note that g_malloc will exit on allocation failure, so there
-is no need to test for failure (as you would have to with malloc).
-Calling g_malloc with a zero size is valid and will return NULL.
-
-Memory allocated by qemu_memalign or qemu_blockalign must be freed with
-qemu_vfree, since breaking this will cause problems on Win32.
-
-4. String manipulation
-
-Do not use the strncpy function.  As mentioned in the man page, it does *not*
-guarantee a NULL-terminated buffer, which makes it extremely dangerous to use.
-It also zeros trailing destination bytes out to the specified length.  Instead,
-use this similar function when possible, but note its different signature:
-void pstrcpy(char *dest, int dest_buf_size, const char *src)
-
-Don't use strcat because it can't check for buffer overflows, but:
-char *pstrcat(char *buf, int buf_size, const char *s)
-
-The same limitation exists with sprintf and vsprintf, so use snprintf and
-vsnprintf.
-
-QEMU provides other useful string functions:
-int strstart(const char *str, const char *val, const char **ptr)
-int stristart(const char *str, const char *val, const char **ptr)
-int qemu_strnlen(const char *s, int max_len)
-
-There are also replacement character processing macros for isxyz and toxyz,
-so instead of e.g. isalnum you should use qemu_isalnum.
-
-Because of the memory management rules, you must use g_strdup/g_strndup
-instead of plain strdup/strndup.
-
-5. Printf-style functions
-
-Whenever you add a new printf-style function, i.e., one with a format
-string argument and following "..." in its prototype, be sure to use
-gcc's printf attribute directive in the prototype.
-
-This makes it so gcc's -Wformat and -Wformat-security options can do
-their jobs and cross-check format strings with the number and types
-of arguments.
-
-6. C standard, implementation defined and undefined behaviors
-
-C code in QEMU should be written to the C99 language specification. A copy
-of the final version of the C99 standard with corrigenda TC1, TC2, and TC3
-included, formatted as a draft, can be downloaded from:
- http://www.open-std.org/jtc1/sc22/WG14/www/docs/n1256.pdf
-
-The C language specification defines regions of undefined behavior and
-implementation defined behavior (to give compiler authors enough leeway to
-produce better code).  In general, code in QEMU should follow the language
-specification and avoid both undefined and implementation defined
-constructs. ("It works fine on the gcc I tested it with" is not a valid
-argument...) However there are a few areas where we allow ourselves to
-assume certain behaviors because in practice all the platforms we care about
-behave in the same way and writing strictly conformant code would be
-painful. These are:
- * you may assume that integers are 2s complement representation
- * you may assume that right shift of a signed integer duplicates
-   the sign bit (ie it is an arithmetic shift, not a logical shift)
-
-In addition, QEMU assumes that the compiler does not use the latitude
-given in C99 and C11 to treat aspects of signed '<<' as undefined, as
-documented in the GNU Compiler Collection manual starting at version 4.0.
-
-7. Error handling and reporting
-
-7.1 Reporting errors to the human user
-
-Do not use printf(), fprintf() or monitor_printf().  Instead, use
-error_report() or error_vreport() from error-report.h.  This ensures the
-error is reported in the right place (current monitor or stderr), and in
-a uniform format.
-
-Use error_printf() & friends to print additional information.
-
-error_report() prints the current location.  In certain common cases
-like command line parsing, the current location is tracked
-automatically.  To manipulate it manually, use the loc_*() from
-error-report.h.
-
-7.2 Propagating errors
-
-An error can't always be reported to the user right where it's detected,
-but often needs to be propagated up the call chain to a place that can
-handle it.  This can be done in various ways.
-
-The most flexible one is Error objects.  See error.h for usage
-information.
-
-Use the simplest suitable method to communicate success / failure to
-callers.  Stick to common methods: non-negative on success / -1 on
-error, non-negative / -errno, non-null / null, or Error objects.
-
-Example: when a function returns a non-null pointer on success, and it
-can fail only in one way (as far as the caller is concerned), returning
-null on failure is just fine, and certainly simpler and a lot easier on
-the eyes than propagating an Error object through an Error ** parameter.
-
-Example: when a function's callers need to report details on failure
-only the function really knows, use Error **, and set suitable errors.
-
-Do not report an error to the user when you're also returning an error
-for somebody else to handle.  Leave the reporting to the place that
-consumes the error returned.
-
-7.3 Handling errors
-
-Calling exit() is fine when handling configuration errors during
-startup.  It's problematic during normal operation.  In particular,
-monitor commands should never exit().
-
-Do not call exit() or abort() to handle an error that can be triggered
-by the guest (e.g., some unimplemented corner case in guest code
-translation or device emulation).  Guests should not be able to
-terminate QEMU.
-
-Note that &error_fatal is just another way to exit(1), and &error_abort
-is just another way to abort().

LICENSE

@@ -1,21 +1,18 @@
 The following points clarify the QEMU license:
 
-1) QEMU as a whole is released under the GNU General Public License,
-version 2.
+1) QEMU as a whole is released under the GNU General Public License
 
 2) Parts of QEMU have specific licenses which are compatible with the
-GNU General Public License, version 2. Hence each source file contains
-its own licensing information.  Source files with no licensing information
-are released under the GNU General Public License, version 2 or (at your
-option) any later version.
+GNU General Public License. Hence each source file contains its own
+licensing information.
 
-As of July 2013, contributions under version 2 of the GNU General Public
-License (and no later version) are only accepted for the following files
-or directories: bsd-user/, linux-user/, hw/vfio/, hw/xen/xen_pt*.
+In particular, the QEMU virtual CPU core library (libqemu.a) is
+released under the GNU Lesser General Public License. Many hardware
+device emulation sources are released under the BSD license.
 
 3) The Tiny Code Generator (TCG) is released under the BSD license
    (see license headers in files).
 
 4) QEMU is a trademark of Fabrice Bellard.
 
-Fabrice Bellard and the QEMU team
+Fabrice Bellard.

Makefile.hw

@@ -0,0 +1,53 @@
+# Makefile for qemu target independent devices.
+
+include ../config-host.mak
+include ../config-all-devices.mak
+include config.mak
+include $(SRC_PATH)/rules.mak
+
+.PHONY: all
+
+VPATH=$(SRC_PATH):$(SRC_PATH)/hw
+
+QEMU_CFLAGS+=-I.. -I$(SRC_PATH)/fpu
+
+obj-y =
+obj-y += loader.o
+obj-y += virtio.o
+obj-y += fw_cfg.o
+obj-y += watchdog.o
+obj-$(CONFIG_ECC) += ecc.o
+obj-$(CONFIG_NAND) += nand.o
+
+obj-$(CONFIG_M48T59) += m48t59.o
+obj-$(CONFIG_ESCC) += escc.o
+
+# PCI watchdog devices
+obj-y += wdt_i6300esb.o
+
+obj-y += msix.o
+
+# PCI network cards
+obj-y += ne2000.o
+
+obj-$(CONFIG_SMC91C111) += smc91c111.o
+obj-$(CONFIG_LAN9118) += lan9118.o
+
+# SCSI layer
+obj-y += lsi53c895a.o
+obj-$(CONFIG_ESP) += esp.o
+
+obj-y += dma-helpers.o sysbus.o isa-bus.o
+obj-$(CONFIG_QDEV_ADDR) += qdev-addr.o
+
+all: $(HWLIB)
+# Dummy command so that make thinks it has done something
+	@true
+
+$(HWLIB): $(obj-y)
+
+clean:
+	rm -f *.o *.d *.a *~
+
+# Include automatically generated dependency files
+-include $(wildcard *.d */*.d)

Makefile.objs

@@ -1,173 +0,0 @@
-#######################################################################
-# Common libraries for tools and emulators
-stub-obj-y = stubs/ crypto/
-util-obj-y = util/ qobject/ qapi/
-util-obj-y += qmp-introspect.o qapi-types.o qapi-visit.o qapi-event.o
-
-chardev-obj-y = chardev/
-
-#######################################################################
-# block-obj-y is code used by both qemu system emulation and qemu-img
-
-block-obj-y += nbd/
-block-obj-y += block.o blockjob.o
-block-obj-y += block/
-block-obj-y += qemu-io-cmds.o
-block-obj-$(CONFIG_REPLICATION) += replication.o
-
-block-obj-m = block/
-
-#######################################################################
-# crypto-obj-y is code used by both qemu system emulation and qemu-img
-
-crypto-obj-y = crypto/
-crypto-aes-obj-y = crypto/
-
-#######################################################################
-# qom-obj-y is code used by both qemu system emulation and qemu-img
-
-qom-obj-y = qom/
-
-#######################################################################
-# io-obj-y is code used by both qemu system emulation and qemu-img
-
-io-obj-y = io/
-
-######################################################################
-# Target independent part of system emulation. The long term path is to
-# suppress *all* target specific code in case of system emulation, i.e. a
-# single QEMU executable should support all CPUs and machines.
-
-ifeq ($(CONFIG_SOFTMMU),y)
-common-obj-y = blockdev.o blockdev-nbd.o block/
-common-obj-y += iothread.o
-common-obj-y += net/
-common-obj-y += qdev-monitor.o device-hotplug.o
-common-obj-$(CONFIG_WIN32) += os-win32.o
-common-obj-$(CONFIG_POSIX) += os-posix.o
-
-common-obj-$(CONFIG_LINUX) += fsdev/
-
-common-obj-y += migration/
-
-common-obj-y += audio/
-common-obj-y += hw/
-common-obj-y += accel.o
-
-common-obj-y += replay/
-
-common-obj-y += ui/
-common-obj-y += bt-host.o bt-vhci.o
-bt-host.o-cflags := $(BLUEZ_CFLAGS)
-
-common-obj-y += dma-helpers.o
-common-obj-y += vl.o
-vl.o-cflags := $(GPROF_CFLAGS) $(SDL_CFLAGS)
-common-obj-y += tpm.o
-
-common-obj-$(CONFIG_SLIRP) += slirp/
-
-common-obj-y += backends/
-common-obj-y += chardev/
-
-common-obj-$(CONFIG_SECCOMP) += qemu-seccomp.o
-
-common-obj-$(CONFIG_FDT) += device_tree.o
-
-######################################################################
-# qapi
-
-common-obj-y += qmp-marshal.o
-common-obj-y += qmp-introspect.o
-common-obj-y += qmp.o hmp.o
-endif
-
-#######################################################################
-# Target-independent parts used in system and user emulation
-common-obj-y += cpus-common.o
-common-obj-y += hw/
-common-obj-y += qom/
-common-obj-y += disas/
-
-######################################################################
-# Resource file for Windows executables
-version-obj-$(CONFIG_WIN32) += $(BUILD_DIR)/version.o
-
-######################################################################
-# tracing
-util-obj-y +=  trace/
-target-obj-y += trace/
-
-######################################################################
-# guest agent
-
-# FIXME: a few definitions from qapi-types.o/qapi-visit.o are needed
-# by libqemuutil.a.  These should be moved to a separate .json schema.
-qga-obj-y = qga/
-qga-vss-dll-obj-y = qga/
-
-######################################################################
-# contrib
-ivshmem-client-obj-y = contrib/ivshmem-client/
-ivshmem-server-obj-y = contrib/ivshmem-server/
-libvhost-user-obj-y = contrib/libvhost-user/
-
-######################################################################
-trace-events-subdirs =
-trace-events-subdirs += util
-trace-events-subdirs += crypto
-trace-events-subdirs += io
-trace-events-subdirs += migration
-trace-events-subdirs += block
-trace-events-subdirs += backends
-trace-events-subdirs += chardev
-trace-events-subdirs += hw/block
-trace-events-subdirs += hw/block/dataplane
-trace-events-subdirs += hw/char
-trace-events-subdirs += hw/intc
-trace-events-subdirs += hw/net
-trace-events-subdirs += hw/virtio
-trace-events-subdirs += hw/audio
-trace-events-subdirs += hw/misc
-trace-events-subdirs += hw/usb
-trace-events-subdirs += hw/scsi
-trace-events-subdirs += hw/nvram
-trace-events-subdirs += hw/display
-trace-events-subdirs += hw/input
-trace-events-subdirs += hw/timer
-trace-events-subdirs += hw/dma
-trace-events-subdirs += hw/sparc
-trace-events-subdirs += hw/sd
-trace-events-subdirs += hw/isa
-trace-events-subdirs += hw/mem
-trace-events-subdirs += hw/i386
-trace-events-subdirs += hw/i386/xen
-trace-events-subdirs += hw/9pfs
-trace-events-subdirs += hw/ppc
-trace-events-subdirs += hw/pci
-trace-events-subdirs += hw/s390x
-trace-events-subdirs += hw/vfio
-trace-events-subdirs += hw/acpi
-trace-events-subdirs += hw/arm
-trace-events-subdirs += hw/alpha
-trace-events-subdirs += hw/xen
-trace-events-subdirs += ui
-trace-events-subdirs += audio
-trace-events-subdirs += net
-trace-events-subdirs += target/arm
-trace-events-subdirs += target/i386
-trace-events-subdirs += target/mips
-trace-events-subdirs += target/sparc
-trace-events-subdirs += target/s390x
-trace-events-subdirs += target/ppc
-trace-events-subdirs += qom
-trace-events-subdirs += linux-user
-trace-events-subdirs += qapi
-
-trace-events-files = $(SRC_PATH)/trace-events $(trace-events-subdirs:%=$(SRC_PATH)/%/trace-events)
-
-trace-obj-y = trace-root.o
-trace-obj-y += $(trace-events-subdirs:%=%/trace.o)
-trace-obj-$(CONFIG_TRACE_UST) += trace-ust-all.o
-trace-obj-$(CONFIG_TRACE_DTRACE) += trace-dtrace-root.o
-trace-obj-$(CONFIG_TRACE_DTRACE) += $(trace-events-subdirs:%=%/trace-dtrace.o)

Makefile.target

@@ -1,235 +1,336 @@
 # -*- Mode: makefile -*-
 
-BUILD_DIR?=$(CURDIR)/..
+# This needs to be defined before rules.mak
+GENERATED_HEADERS = config-target.h
 
 include ../config-host.mak
-include config-target.mak
 include config-devices.mak
+include config-target.mak
 include $(SRC_PATH)/rules.mak
 
-$(call set-vpath, $(SRC_PATH):$(BUILD_DIR))
-ifdef CONFIG_LINUX
-QEMU_CFLAGS += -I../linux-headers
-endif
-QEMU_CFLAGS += -I.. -I$(SRC_PATH)/target/$(TARGET_BASE_ARCH) -DNEED_CPU_H
-
-QEMU_CFLAGS+=-I$(SRC_PATH)/include
+TARGET_PATH=$(SRC_PATH)/target-$(TARGET_BASE_ARCH)
+VPATH=$(SRC_PATH):$(TARGET_PATH):$(SRC_PATH)/hw
+QEMU_CFLAGS+= -I.. -I$(TARGET_PATH) -DNEED_CPU_H
 
 ifdef CONFIG_USER_ONLY
 # user emulator name
-QEMU_PROG=qemu-$(TARGET_NAME)
-QEMU_PROG_BUILD = $(QEMU_PROG)
+QEMU_PROG=qemu-$(TARGET_ARCH2)
 else
 # system emulator name
-QEMU_PROG=qemu-system-$(TARGET_NAME)$(EXESUF)
-ifneq (,$(findstring -mwindows,$(libs_softmmu)))
-# Terminate program name with a 'w' because the linker builds a windows executable.
-QEMU_PROGW=qemu-system-$(TARGET_NAME)w$(EXESUF)
-$(QEMU_PROG): $(QEMU_PROGW)
-	$(call quiet-command,$(OBJCOPY) --subsystem console $(QEMU_PROGW) $(QEMU_PROG),"GEN","$(TARGET_DIR)$(QEMU_PROG)")
-QEMU_PROG_BUILD = $(QEMU_PROGW)
+ifeq ($(TARGET_ARCH), i386)
+QEMU_PROG=qemu$(EXESUF)
 else
-QEMU_PROG_BUILD = $(QEMU_PROG)
+QEMU_PROG=qemu-system-$(TARGET_ARCH2)$(EXESUF)
 endif
 endif
 
-PROGS=$(QEMU_PROG) $(QEMU_PROGW)
-STPFILES=
+PROGS=$(QEMU_PROG)
+
+LIBS+=-lm
+
+kvm.o kvm-all.o: QEMU_CFLAGS+=$(KVM_CFLAGS)
 
 config-target.h: config-target.h-timestamp
 config-target.h-timestamp: config-target.mak
 
-ifdef CONFIG_TRACE_SYSTEMTAP
-stap: $(QEMU_PROG).stp-installed $(QEMU_PROG).stp $(QEMU_PROG)-simpletrace.stp
-
-ifdef CONFIG_USER_ONLY
-TARGET_TYPE=user
-else
-TARGET_TYPE=system
-endif
-
-$(QEMU_PROG).stp-installed: $(BUILD_DIR)/trace-events-all
-	$(call quiet-command,$(TRACETOOL) \
-		--group=all \
-		--format=stap \
-		--backends=$(TRACE_BACKENDS) \
-		--binary=$(bindir)/$(QEMU_PROG) \
-		--target-name=$(TARGET_NAME) \
-		--target-type=$(TARGET_TYPE) \
-		$< > $@,"GEN","$(TARGET_DIR)$(QEMU_PROG).stp-installed")
-
-$(QEMU_PROG).stp: $(BUILD_DIR)/trace-events-all
-	$(call quiet-command,$(TRACETOOL) \
-		--group=all \
-		--format=stap \
-		--backends=$(TRACE_BACKENDS) \
-		--binary=$(realpath .)/$(QEMU_PROG) \
-		--target-name=$(TARGET_NAME) \
-		--target-type=$(TARGET_TYPE) \
-		$< > $@,"GEN","$(TARGET_DIR)$(QEMU_PROG).stp")
-
-$(QEMU_PROG)-simpletrace.stp: $(BUILD_DIR)/trace-events-all
-	$(call quiet-command,$(TRACETOOL) \
-		--group=all \
-		--format=simpletrace-stap \
-		--backends=$(TRACE_BACKENDS) \
-		--probe-prefix=qemu.$(TARGET_TYPE).$(TARGET_NAME) \
-		$< > $@,"GEN","$(TARGET_DIR)$(QEMU_PROG)-simpletrace.stp")
-
-else
-stap:
-endif
-.PHONY: stap
-
-all: $(PROGS) stap
+all: $(PROGS)
 
 # Dummy command so that make thinks it has done something
 	@true
 
 #########################################################
 # cpu emulator library
-obj-y = exec.o translate-all.o cpu-exec.o
-obj-y += translate-common.o
-obj-y += cpu-exec-common.o
-obj-y += tcg/tcg.o tcg/tcg-op.o tcg/optimize.o
-obj-$(CONFIG_TCG_INTERPRETER) += tci.o
-obj-y += tcg/tcg-common.o
-obj-$(CONFIG_TCG_INTERPRETER) += disas/tci.o
-obj-y += fpu/softfloat.o
-obj-y += target/$(TARGET_BASE_ARCH)/
-obj-y += disas.o
-obj-y += tcg-runtime.o
-obj-$(call notempty,$(TARGET_XML_FILES)) += gdbstub-xml.o
-obj-$(call lnot,$(CONFIG_HAX)) += hax-stub.o
-obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
+libobj-y = exec.o translate-all.o cpu-exec.o translate.o
+libobj-y += tcg/tcg.o
+libobj-$(CONFIG_SOFTFLOAT) += fpu/softfloat.o
+libobj-$(CONFIG_NOSOFTFLOAT) += fpu/softfloat-native.o
+libobj-y += op_helper.o helper.o
+libobj-$(CONFIG_NEED_MMU) += mmu.o
+libobj-$(TARGET_ARM) += neon_helper.o iwmmxt_helper.o
+libobj-$(TARGET_ALPHA) += alpha_palcode.o
 
-obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/decContext.o
-obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/decNumber.o
-obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/dpd/decimal32.o
-obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/dpd/decimal64.o
-obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/dpd/decimal128.o
+# NOTE: the disassembler code is only needed for debugging
+libobj-y += disas.o
+libobj-$(CONFIG_ALPHA_DIS) += alpha-dis.o
+libobj-$(CONFIG_ARM_DIS) += arm-dis.o
+libobj-$(CONFIG_CRIS_DIS) += cris-dis.o
+libobj-$(CONFIG_HPPA_DIS) += hppa-dis.o
+libobj-$(CONFIG_I386_DIS) += i386-dis.o
+libobj-$(CONFIG_M68K_DIS) += m68k-dis.o
+libobj-$(CONFIG_MICROBLAZE_DIS) += microblaze-dis.o
+libobj-$(CONFIG_MIPS_DIS) += mips-dis.o
+libobj-$(CONFIG_PPC_DIS) += ppc-dis.o
+libobj-$(CONFIG_S390_DIS) += s390-dis.o
+libobj-$(CONFIG_SH4_DIS) += sh4-dis.o
+libobj-$(CONFIG_SPARC_DIS) += sparc-dis.o
+
+# libqemu
+
+libqemu.a: $(libobj-y)
+
+translate.o: translate.c cpu.h
+
+translate-all.o: translate-all.c cpu.h
+
+tcg/tcg.o: cpu.h
+
+# HELPER_CFLAGS is used for all the code compiled with static register
+# variables
+op_helper.o cpu-exec.o: QEMU_CFLAGS += $(HELPER_CFLAGS)
+
+# Note: this is a workaround. The real fix is to avoid compiling
+# cpu_signal_handler() in cpu-exec.c.
+signal.o: QEMU_CFLAGS += $(HELPER_CFLAGS)
 
 #########################################################
 # Linux user emulator target
 
 ifdef CONFIG_LINUX_USER
 
-QEMU_CFLAGS+=-I$(SRC_PATH)/linux-user/$(TARGET_ABI_DIR) \
-             -I$(SRC_PATH)/linux-user/host/$(ARCH) \
-             -I$(SRC_PATH)/linux-user
+VPATH+=:$(SRC_PATH)/linux-user:$(SRC_PATH)/linux-user/$(TARGET_ABI_DIR)
+QEMU_CFLAGS+=-I$(SRC_PATH)/linux-user -I$(SRC_PATH)/linux-user/$(TARGET_ABI_DIR)
+obj-y = main.o syscall.o strace.o mmap.o signal.o thunk.o \
+      elfload.o linuxload.o uaccess.o gdbstub.o
 
-obj-y += linux-user/
-obj-y += gdbstub.o thunk.o user-exec.o user-exec-stub.o
+obj-$(TARGET_HAS_BFLT) += flatload.o
+obj-$(TARGET_HAS_ELFLOAD32) += elfload32.o
+
+obj-$(TARGET_I386) += vm86.o
+
+obj-i386-y += ioport-user.o
+
+nwfpe-obj-y = fpa11.o fpa11_cpdo.o fpa11_cpdt.o fpa11_cprt.o fpopcode.o
+nwfpe-obj-y += single_cpdo.o double_cpdo.o extended_cpdo.o
+obj-arm-y +=  $(addprefix nwfpe/, $(nwfpe-obj-y))
+obj-arm-y += arm-semi.o
+
+obj-m68k-y += m68k-sim.o m68k-semi.o
+
+ARLIBS=../libuser/libuser.a libqemu.a
 
 endif #CONFIG_LINUX_USER
 
+#########################################################
+# Darwin user emulator target
+
+ifdef CONFIG_DARWIN_USER
+
+VPATH+=:$(SRC_PATH)/darwin-user
+QEMU_CFLAGS+=-I$(SRC_PATH)/darwin-user -I$(SRC_PATH)/darwin-user/$(TARGET_ARCH)
+
+# Leave some space for the regular program loading zone
+LDFLAGS+=-Wl,-segaddr,__STD_PROG_ZONE,0x1000 -image_base 0x0e000000
+
+LIBS+=-lmx
+
+obj-y = main.o commpage.o machload.o mmap.o signal.o syscall.o thunk.o \
+        gdbstub.o
+
+obj-i386-y += ioport-user.o
+
+ARLIBS=../libuser/libuser.a libqemu.a
+
+endif #CONFIG_DARWIN_USER
+
 #########################################################
 # BSD user emulator target
 
 ifdef CONFIG_BSD_USER
 
-QEMU_CFLAGS+=-I$(SRC_PATH)/bsd-user -I$(SRC_PATH)/bsd-user/$(TARGET_ABI_DIR) \
-			 -I$(SRC_PATH)/bsd-user/$(HOST_VARIANT_DIR)
+VPATH+=:$(SRC_PATH)/bsd-user
+QEMU_CFLAGS+=-I$(SRC_PATH)/bsd-user -I$(SRC_PATH)/bsd-user/$(TARGET_ARCH)
 
-obj-y += bsd-user/
-obj-y += gdbstub.o user-exec.o user-exec-stub.o
+obj-y = main.o bsdload.o elfload.o mmap.o signal.o strace.o syscall.o \
+        gdbstub.o uaccess.o
+
+obj-i386-y += ioport-user.o
+
+ARLIBS=../libuser/libuser.a libqemu.a
 
 endif #CONFIG_BSD_USER
 
 #########################################################
 # System emulator target
 ifdef CONFIG_SOFTMMU
-obj-y += arch_init.o cpus.o monitor.o gdbstub.o balloon.o ioport.o numa.o
-obj-y += qtest.o bootdevice.o
-obj-y += hw/
-obj-$(CONFIG_KVM) += kvm-all.o
-obj-y += memory.o cputlb.o
-obj-y += memory_mapping.o
-obj-y += dump.o
-obj-y += migration/ram.o
-LIBS := $(libs_softmmu) $(LIBS)
+
+obj-y = vl.o async.o monitor.o pci.o pci_host.o pcie_host.o machine.o gdbstub.o
+# virtio has to be here due to weird dependency between PCI and virtio-net.
+# need to fix this properly
+obj-y += virtio-blk.o virtio-balloon.o virtio-net.o virtio-console.o virtio-pci.o
+obj-$(CONFIG_KVM) += kvm.o kvm-all.o
+obj-$(CONFIG_ISA_MMIO) += isa_mmio.o
+LIBS+=-lz
+
+sound-obj-y =
+sound-obj-$(CONFIG_SB16) += sb16.o
+sound-obj-$(CONFIG_ES1370) += es1370.o
+sound-obj-$(CONFIG_AC97) += ac97.o
+sound-obj-$(CONFIG_ADLIB) += fmopl.o adlib.o
+sound-obj-$(CONFIG_GUS) += gus.o gusemu_hal.o gusemu_mixer.o
+sound-obj-$(CONFIG_CS4231A) += cs4231a.o
+
+adlib.o fmopl.o: QEMU_CFLAGS += -DBUILD_Y8950=0
+
+QEMU_CFLAGS += $(VNC_TLS_CFLAGS)
+QEMU_CFLAGS += $(VNC_SASL_CFLAGS)
+
+# xen backend driver support
+obj-$(CONFIG_XEN) += xen_machine_pv.o xen_domainbuild.o
+
+# USB layer
+obj-$(CONFIG_USB_OHCI) += usb-ohci.o
+
+# PCI network cards
+obj-y += eepro100.o
+obj-y += pcnet.o
+obj-y += rtl8139.o
+obj-y += e1000.o
 
 # Hardware support
-ifeq ($(TARGET_NAME), sparc64)
-obj-y += hw/sparc64/
+obj-i386-y = ide/core.o ide/qdev.o ide/isa.o ide/pci.o ide/piix.o
+obj-i386-y += pckbd.o $(sound-obj-y) dma.o
+obj-i386-y += vga.o vga-pci.o vga-isa.o
+obj-i386-y += fdc.o mc146818rtc.o serial.o i8259.o i8254.o pcspk.o pc.o
+obj-i386-y += cirrus_vga.o apic.o ioapic.o parallel.o acpi.o piix_pci.o
+obj-i386-y += usb-uhci.o vmmouse.o vmport.o vmware_vga.o hpet.o
+obj-i386-y += device-hotplug.o pci-hotplug.o smbios.o wdt_ib700.o
+obj-i386-y += ne2000-isa.o
+
+# shared objects
+obj-ppc-y = ppc.o ide/core.o ide/qdev.o ide/isa.o ide/pci.o ide/macio.o
+obj-ppc-y += ide/cmd646.o
+obj-ppc-y += vga.o vga-pci.o $(sound-obj-y) dma.o openpic.o
+# PREP target
+obj-ppc-y += pckbd.o serial.o i8259.o i8254.o fdc.o mc146818rtc.o
+obj-ppc-y += prep_pci.o ppc_prep.o ne2000-isa.o
+# Mac shared devices
+obj-ppc-y += macio.o cuda.o adb.o mac_nvram.o mac_dbdma.o
+# OldWorld PowerMac
+obj-ppc-y += heathrow_pic.o grackle_pci.o ppc_oldworld.o
+# NewWorld PowerMac
+obj-ppc-y += unin_pci.o ppc_newworld.o
+# PowerPC 4xx boards
+obj-ppc-y += pflash_cfi02.o ppc4xx_devs.o ppc4xx_pci.o ppc405_uc.o ppc405_boards.o
+obj-ppc-y += ppc440.o ppc440_bamboo.o
+# PowerPC E500 boards
+obj-ppc-y += ppce500_pci.o ppce500_mpc8544ds.o
+obj-ppc-$(CONFIG_KVM) += kvm_ppc.o
+obj-ppc-$(CONFIG_FDT) += device_tree.o
+
+obj-mips-y = mips_r4k.o mips_jazz.o mips_malta.o mips_mipssim.o
+obj-mips-y += mips_timer.o mips_int.o dma.o vga.o serial.o i8254.o i8259.o rc4030.o
+obj-mips-y += vga-pci.o vga-isa.o vga-isa-mm.o
+obj-mips-y += g364fb.o jazz_led.o dp8393x.o
+obj-mips-y += ide/core.o ide/qdev.o ide/isa.o ide/pci.o ide/piix.o
+obj-mips-y += gt64xxx.o pckbd.o fdc.o mc146818rtc.o usb-uhci.o acpi.o ds1225y.o
+obj-mips-y += piix4.o parallel.o cirrus_vga.o pcspk.o $(sound-obj-y)
+obj-mips-y += mipsnet.o ne2000-isa.o
+obj-mips-y += pflash_cfi01.o
+obj-mips-y += vmware_vga.o
+
+obj-microblaze-y = petalogix_s3adsp1800_mmu.o
+
+obj-microblaze-y += microblaze_pic_cpu.o
+obj-microblaze-y += xilinx_intc.o
+obj-microblaze-y += xilinx_timer.o
+obj-microblaze-y += xilinx_uartlite.o
+obj-microblaze-y += xilinx_ethlite.o
+
+obj-microblaze-y += pflash_cfi02.o
+
+obj-microblaze-$(CONFIG_FDT) += device_tree.o
+
+# Boards
+obj-cris-y = cris_pic_cpu.o etraxfs.o axis_dev88.o
+
+# IO blocks
+obj-cris-y += etraxfs_dma.o
+obj-cris-y += etraxfs_pic.o
+obj-cris-y += etraxfs_eth.o
+obj-cris-y += etraxfs_timer.o
+obj-cris-y += etraxfs_ser.o
+
+obj-cris-y += pflash_cfi02.o
+
+ifeq ($(TARGET_ARCH), sparc64)
+obj-sparc-y = sun4u.o pckbd.o apb_pci.o
+obj-sparc-y += ide/core.o ide/qdev.o ide/pci.o ide/cmd646.o
+obj-sparc-y += vga.o vga-pci.o
+obj-sparc-y += fdc.o mc146818rtc.o serial.o
+obj-sparc-y += cirrus_vga.o parallel.o
 else
-obj-y += hw/$(TARGET_BASE_ARCH)/
+obj-sparc-y = sun4m.o lance.o tcx.o iommu.o slavio_intctl.o
+obj-sparc-y += slavio_timer.o slavio_misc.o fdc.o sparc32_dma.o
+obj-sparc-y += cs4231.o eccmemctl.o sbi.o sun4c_intctl.o
 endif
 
-GENERATED_FILES += hmp-commands.h hmp-commands-info.h
+obj-arm-y = integratorcp.o versatilepb.o arm_pic.o arm_timer.o
+obj-arm-y += arm_boot.o pl011.o pl031.o pl050.o pl080.o pl110.o pl181.o pl190.o
+obj-arm-y += versatile_pci.o
+obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
+obj-arm-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
+obj-arm-y += pl061.o
+obj-arm-y += arm-semi.o
+obj-arm-y += pxa2xx.o pxa2xx_pic.o pxa2xx_gpio.o pxa2xx_timer.o pxa2xx_dma.o
+obj-arm-y += pxa2xx_lcd.o pxa2xx_mmci.o pxa2xx_pcmcia.o pxa2xx_keypad.o
+obj-arm-y += pflash_cfi01.o gumstix.o
+obj-arm-y += zaurus.o ide/core.o ide/microdrive.o serial.o spitz.o tosa.o tc6393xb.o
+obj-arm-y += omap1.o omap_lcdc.o omap_dma.o omap_clk.o omap_mmc.o omap_i2c.o
+obj-arm-y += omap2.o omap_dss.o soc_dma.o
+obj-arm-y += omap_sx1.o palm.o tsc210x.o
+obj-arm-y += nseries.o blizzard.o onenand.o vga.o cbus.o tusb6010.o usb-musb.o
+obj-arm-y += mst_fpga.o mainstone.o
+obj-arm-y += musicpal.o pflash_cfi02.o bitbang_i2c.o marvell_88w8618_audio.o
+obj-arm-y += framebuffer.o
+obj-arm-y += syborg.o syborg_fb.o syborg_interrupt.o syborg_keyboard.o
+obj-arm-y += syborg_serial.o syborg_timer.o syborg_pointer.o syborg_rtc.o
+obj-arm-y += syborg_virtio.o
+
+obj-sh4-y = shix.o r2d.o sh7750.o sh7750_regnames.o tc58128.o
+obj-sh4-y += sh_timer.o sh_serial.o sh_intc.o sh_pci.o sm501.o serial.o
+obj-sh4-y += ide/core.o ide/mmio.o
+
+obj-m68k-y = an5206.o mcf5206.o mcf_uart.o mcf_intc.o mcf5208.o mcf_fec.o
+obj-m68k-y += m68k-semi.o dummy_m68k.o
+
+obj-s390x-y = s390-virtio-bus.o s390-virtio.o
+
+main.o vl.o: QEMU_CFLAGS+=$(GPROF_CFLAGS)
+
+vl.o: QEMU_CFLAGS+=$(SDL_CFLAGS)
+
+vl.o: qemu-options.h
+
+monitor.o: qemu-monitor.h
+
+ARLIBS=../libqemu_common.a libqemu.a $(HWLIB)
 
 endif # CONFIG_SOFTMMU
 
-# Workaround for http://gcc.gnu.org/PR55489, see configure.
-%/translate.o: QEMU_CFLAGS += $(TRANSLATE_OPT_CFLAGS)
+obj-$(CONFIG_GDBSTUB_XML) += gdbstub-xml.o
 
-dummy := $(call unnest-vars,,obj-y)
-all-obj-y := $(obj-y)
+$(QEMU_PROG): $(obj-y) $(obj-$(TARGET_BASE_ARCH)-y) $(ARLIBS)
+	$(call LINK,$(obj-y) $(obj-$(TARGET_BASE_ARCH)-y))
 
-target-obj-y :=
-block-obj-y :=
-common-obj-y :=
-chardev-obj-y :=
-include $(SRC_PATH)/Makefile.objs
-dummy := $(call unnest-vars,,target-obj-y)
-target-obj-y-save := $(target-obj-y)
-dummy := $(call unnest-vars,.., \
-               block-obj-y \
-               block-obj-m \
-               chardev-obj-y \
-               crypto-obj-y \
-               crypto-aes-obj-y \
-               qom-obj-y \
-               io-obj-y \
-               common-obj-y \
-               common-obj-m)
-target-obj-y := $(target-obj-y-save)
-all-obj-y += $(common-obj-y)
-all-obj-y += $(target-obj-y)
-all-obj-y += $(qom-obj-y)
-all-obj-$(CONFIG_SOFTMMU) += $(block-obj-y) $(chardev-obj-y)
-all-obj-$(CONFIG_USER_ONLY) += $(crypto-aes-obj-y)
-all-obj-$(CONFIG_SOFTMMU) += $(crypto-obj-y)
-all-obj-$(CONFIG_SOFTMMU) += $(io-obj-y)
 
-$(QEMU_PROG_BUILD): config-devices.mak
+gdbstub-xml.c: $(TARGET_XML_FILES) feature_to_c.sh
+	$(call quiet-command,rm -f $@ && $(SHELL) $(SRC_PATH)/feature_to_c.sh $@ $(TARGET_XML_FILES),"  GEN   $(TARGET_DIR)$@")
 
-COMMON_LDADDS = ../libqemuutil.a ../libqemustub.a
+qemu-options.h: $(SRC_PATH)/qemu-options.hx
+	$(call quiet-command,sh $(SRC_PATH)/hxtool -h < $< > $@,"  GEN   $(TARGET_DIR)$@")
 
-# build either PROG or PROGW
-$(QEMU_PROG_BUILD): $(all-obj-y) $(COMMON_LDADDS)
-	$(call LINK, $(filter-out %.mak, $^))
-ifdef CONFIG_DARWIN
-	$(call quiet-command,Rez -append $(SRC_PATH)/pc-bios/qemu.rsrc -o $@,"REZ","$(TARGET_DIR)$@")
-	$(call quiet-command,SetFile -a C $@,"SETFILE","$(TARGET_DIR)$@")
-endif
+qemu-monitor.h: $(SRC_PATH)/qemu-monitor.hx
+	$(call quiet-command,sh $(SRC_PATH)/hxtool -h < $< > $@,"  GEN   $(TARGET_DIR)$@")
 
-gdbstub-xml.c: $(TARGET_XML_FILES) $(SRC_PATH)/scripts/feature_to_c.sh
-	$(call quiet-command,rm -f $@ && $(SHELL) $(SRC_PATH)/scripts/feature_to_c.sh $@ $(TARGET_XML_FILES),"GEN","$(TARGET_DIR)$@")
-
-hmp-commands.h: $(SRC_PATH)/hmp-commands.hx $(SRC_PATH)/scripts/hxtool
-	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"GEN","$(TARGET_DIR)$@")
-
-hmp-commands-info.h: $(SRC_PATH)/hmp-commands-info.hx $(SRC_PATH)/scripts/hxtool
-	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"GEN","$(TARGET_DIR)$@")
-
-clean: clean-target
-	rm -f *.a *~ $(PROGS)
-	rm -f $(shell find . -name '*.[od]')
-	rm -f hmp-commands.h gdbstub-xml.c
-ifdef CONFIG_TRACE_SYSTEMTAP
-	rm -f *.stp
-endif
+clean:
+	rm -f *.o *.a *~ $(PROGS) nwfpe/*.o fpu/*.o
+	rm -f *.d */*.d tcg/*.o ide/*.o
+	rm -f qemu-options.h qemu-monitor.h gdbstub-xml.c
 
 install: all
 ifneq ($(PROGS),)
-	$(call install-prog,$(PROGS),$(DESTDIR)$(bindir))
-endif
-ifdef CONFIG_TRACE_SYSTEMTAP
-	$(INSTALL_DIR) "$(DESTDIR)$(qemu_datadir)/../systemtap/tapset"
-	$(INSTALL_DATA) $(QEMU_PROG).stp-installed "$(DESTDIR)$(qemu_datadir)/../systemtap/tapset/$(QEMU_PROG).stp"
-	$(INSTALL_DATA) $(QEMU_PROG)-simpletrace.stp "$(DESTDIR)$(qemu_datadir)/../systemtap/tapset/$(QEMU_PROG)-simpletrace.stp"
+	$(INSTALL) -m 755 $(STRIP_OPT) $(PROGS) "$(DESTDIR)$(bindir)"
 endif
 
-GENERATED_FILES += config-target.h
-Makefile: $(GENERATED_FILES)
+# Include automatically generated dependency files
+-include $(wildcard *.d */*.d)

Makefile.user

@@ -0,0 +1,32 @@
+# Makefile for qemu target independent user files.
+
+include ../config-host.mak
+include $(SRC_PATH)/rules.mak
+-include config.mak
+
+.PHONY: all
+
+# Do not take %.o from $(SRC_PATH), only %.c and %.h
+# All %.o for user targets should be built with -fpie, when
+# configured with --enable-user-pie, so we don't want to
+# take %.o from $(SRC_PATH), since they built without -fpie
+vpath %.c %.h $(SRC_PATH)
+
+QEMU_CFLAGS+=-I..
+
+obj-y =
+obj-y += envlist.o path.o
+obj-y += tcg-runtime.o host-utils.o
+obj-y += cutils.o cache-utils.o
+
+all: libuser.a
+# Dummy command so that make thinks it has done something
+	@true
+
+libuser.a: $(obj-y)
+
+clean:
+	rm -f *.o *.d *.a *~
+
+# Include automatically generated dependency files
+-include $(wildcard *.d */*.d)

QMP/README

@@ -0,0 +1,63 @@
+                          QEMU Monitor Protocol
+                          =====================
+
+Introduction
+-------------
+
+The QEMU Monitor Protocol (QMP) allows applications to communicate with
+QEMU's Monitor.
+
+QMP is JSON[1] based and has the following features:
+
+- Lightweight, text-based, easy to parse data format
+- Asynchronous events support 
+- Stability
+
+For more information, please, refer to the following files:
+
+o qmp-spec.txt    QEMU Monitor Protocol current specification
+o qmp-events.txt  List of available asynchronous events
+
+There are also two simple Python scripts available:
+
+o qmp-shell       A shell
+o vm-info         Show some information about the Virtual Machine
+
+[1] http://www.json.org
+
+Usage
+-----
+
+To enable QMP, QEMU has to be started in "control mode". There are
+two ways of doing this, the simplest one is using the the '-qmp'
+command-line option.
+
+For example:
+
+$ qemu [...] -qmp tcp:localhost:4444,server
+
+Will start QEMU in control mode, waiting for a client TCP connection
+on localhost port 4444.
+
+It is also possible to use the '-mon' command-line option to have
+more complex combinations. Please, refer to the QEMU's manpage for
+more information.
+
+Simple Testing
+--------------
+
+To manually test QMP one can connect with telnet and issue commands:
+
+$ telnet localhost 4444
+Trying 127.0.0.1...
+Connected to localhost.
+Escape character is '^]'.
+{"QMP": {"capabilities": []}}
+{ "execute": "query-version" }
+{"return": {"qemu": "0.11.50", "package": ""}}
+
+Contact
+-------
+
+http://www.linux-kvm.org/page/MonitorProtocol
+Luiz Fernando N. Capitulino <lcapitulino@redhat.com>

QMP/qmp-events.txt

@@ -0,0 +1,26 @@
+                   QEMU Monitor Protocol: Events
+                   =============================
+
+1 SHUTDOWN
+-----------
+
+Description: Issued when the Virtual Machine is powered down.
+Data: None.
+
+2 RESET
+-------
+
+Description: Issued when the Virtual Machine is reseted.
+Data: None.
+
+3 STOP
+------
+
+Description: Issued when the Virtual Machine is stopped.
+Data: None.
+
+4 DEBUG
+-------
+
+Description: Issued when the Virtual Machine enters debug mode.
+Data: None.

QMP/qmp-shell

@@ -0,0 +1,72 @@
+#!/usr/bin/python
+#
+# Simple QEMU shell on top of QMP
+#
+# Copyright (C) 2009 Red Hat Inc.
+#
+# Authors:
+#  Luiz Capitulino <lcapitulino@redhat.com>
+#
+# This work is licensed under the terms of the GNU GPL, version 2.  See
+# the COPYING file in the top-level directory.
+#
+# Usage:
+#
+# Start QEMU with:
+#
+# $ qemu [...] -monitor control,unix:./qmp,server
+#
+# Run the shell:
+#
+# $ qmp-shell ./qmp
+#
+# Commands have the following format:
+#
+# < command-name > [ arg-name1=arg1 ] ... [ arg-nameN=argN ]
+#
+# For example:
+#
+# (QEMU) info item=network
+
+import qmp
+import readline
+from sys import argv,exit
+
+def shell_help():
+    print 'bye  exit from the shell'
+
+def main():
+    if len(argv) != 2:
+        print 'qemu-shell <unix-socket>'
+        exit(1)
+
+    qemu = qmp.QEMUMonitorProtocol(argv[1])
+    qemu.connect()
+
+    print 'Connected!'
+
+    while True:
+        try:
+            cmd = raw_input('(QEMU) ')
+        except EOFError:
+            print
+            break
+        if cmd == '':
+            continue
+        elif cmd == 'bye':
+            break
+        elif cmd == 'help':
+            shell_help()
+        else:
+            try:
+                resp = qemu.send(cmd)
+                if resp == None:
+                    print 'Disconnected'
+                    break
+                print resp
+            except IndexError:
+                print '-> command format: <command-name> ',
+                print '[arg-name1=arg1] ... [arg-nameN=argN]'
+
+if __name__ == '__main__':
+    main()

QMP/qmp-spec.txt

@@ -0,0 +1,203 @@
+           QEMU Monitor Protocol Specification - Version 0.1
+
+1. Introduction
+===============
+
+This document specifies the QEMU Monitor Protocol (QMP), a JSON-based protocol
+which is available for applications to control QEMU at the machine-level.
+
+To enable QMP support, QEMU has to be run in "control mode". This is done by
+starting QEMU with the appropriate command-line options. Please, refer to the
+QEMU manual page for more information.
+
+2. Protocol Specification
+=========================
+
+This section details the protocol format. For the purpose of this document
+"Client" is any application which is communicating with QEMU in control mode,
+and "Server" is QEMU itself.
+
+JSON data structures, when mentioned in this document, are always in the
+following format:
+
+    json-DATA-STRUCTURE-NAME
+
+Where DATA-STRUCTURE-NAME is any valid JSON data structure, as defined by
+the JSON standard:
+
+http://www.ietf.org/rfc/rfc4627.txt
+
+For convenience, json-object members and json-array elements mentioned in
+this document will be in a certain order. However, in real protocol usage
+they can be in ANY order, thus no particular order should be assumed.
+
+2.1 General Definitions
+-----------------------
+
+2.1.1 All interactions transmitted by the Server are json-objects, always
+      terminating with CRLF
+
+2.1.2 All json-objects members are mandatory when not specified otherwise
+
+2.2 Server Greeting
+-------------------
+
+Right when connected the Server will issue a greeting message, which signals
+that the connection has been successfully established and that the Server is
+waiting for commands.
+
+The format is:
+
+{ "QMP": { "capabilities": json-array } }
+
+ Where,
+
+- The "capabilities" member specify the availability of features beyond the
+  baseline specification
+
+2.3 Issuing Commands
+--------------------
+
+The format for command execution is:
+
+{ "execute": json-string, "arguments": json-object, "id": json-value }
+
+ Where,
+
+- The "execute" member identifies the command to be executed by the Server
+- The "arguments" member is used to pass any arguments required for the
+  execution of the command, it is optional when no arguments are required
+- The "id" member is a transaction identification associated with the
+  command execution, it is optional and will be part of the response if
+  provided
+
+2.4 Commands Responses
+----------------------
+
+There are two possible responses which the Server will issue as the result
+of a command execution: success or error.
+
+2.4.1 success
+-------------
+
+The success response is issued when the command execution has finished
+without errors.
+
+The format is:
+
+{ "return": json-object, "id": json-value }
+
+ Where,
+
+- The "return" member contains the command returned data, which is defined
+  in a per-command basis or an empty json-object if the command does not
+  return data
+- The "id" member contains the transaction identification associated
+  with the command execution (if issued by the Client)
+
+2.4.2 error
+-----------
+
+The error response is issued when the command execution could not be
+completed because of an error condition.
+
+The format is:
+
+{ "error": { "class": json-string, "data": json-object, "desc": json-string },
+  "id": json-value }
+
+ Where,
+
+- The "class" member contains the error class name (eg. "ServiceUnavailable")
+- The "data" member contains specific error data and is defined in a
+  per-command basis, it will be an empty json-object if the error has no data
+- The "desc" member is a human-readable error message. Clients should
+  not attempt to parse this message.
+- The "id" member contains the transaction identification associated with
+  the command execution (if issued by the Client)
+
+NOTE: Some errors can occur before the Server is able to read the "id" member,
+in these cases the "id" member will not be part of the error response, even
+if provided by the client.
+
+2.5 Asynchronous events
+-----------------------
+
+As a result of state changes, the Server may send messages unilaterally
+to the Client at any time. They are called 'asynchronous events'.
+
+The format is:
+
+{ "event": json-string, "data": json-object,
+  "timestamp": { "seconds": json-number, "microseconds": json-number } }
+
+ Where,
+
+- The "event" member contains the event's name
+- The "data" member contains event specific data, which is defined in a
+  per-event basis, it is optional
+- The "timestamp" member contains the exact time of when the event occurred
+  in the Server. It is a fixed json-object with time in seconds and
+  microseconds
+
+For a listing of supported asynchronous events, please, refer to the
+qmp-events.txt file.
+
+3. QMP Examples
+===============
+
+This section provides some examples of real QMP usage, in all of them
+'C' stands for 'Client' and 'S' stands for 'Server'.
+
+3.1 Server greeting
+-------------------
+
+S: {"QMP": {"capabilities": []}}
+
+3.2 Simple 'stop' execution
+---------------------------
+
+C: { "execute": "stop" }
+S: {"return": {}}
+
+3.3 KVM information
+-------------------
+
+C: { "execute": "query-kvm", "id": "example" }
+S: {"return": {"enabled": true, "present": true}, "id": "example"}
+
+3.4 Parsing error
+------------------
+
+C: { "execute": }
+S: {"error": {"class": "JSONParsing", "desc": "Invalid JSON syntax", "data":
+{}}}
+
+3.5 Powerdown event
+-------------------
+
+S: {"timestamp": {"seconds": 1258551470, "microseconds": 802384}, "event":
+"POWERDOWN"}
+
+4. Compatibility Considerations
+--------------------------------
+
+In order to achieve maximum compatibility between versions, Clients must not 
+assume any particular:
+
+- Size of json-objects or length of json-arrays
+- Order of json-object members or json-array elements
+- Amount of errors generated by a command, that is, new errors can be added
+  to any existing command in newer versions of the Server
+
+Additionally, Clients should always:
+
+- Check the capabilities json-array at connection time
+- Check the availability of commands with 'query-commands' before issuing them
+
+5. Recommendations to Client implementors
+-----------------------------------------
+
+5.1 The Server should be always started in pause mode, thus the Client is
+    able to perform any setup procedure without the risk of race conditions
+    and related problems

QMP/qmp.py

@@ -0,0 +1,72 @@
+# QEMU Monitor Protocol Python class
+# 
+# Copyright (C) 2009 Red Hat Inc.
+#
+# Authors:
+#  Luiz Capitulino <lcapitulino@redhat.com>
+#
+# This work is licensed under the terms of the GNU GPL, version 2.  See
+# the COPYING file in the top-level directory.
+
+import socket, json
+
+class QMPError(Exception):
+    pass
+
+class QMPConnectError(QMPError):
+    pass
+
+class QEMUMonitorProtocol:
+    def connect(self):
+        self.sock.connect(self.filename)
+        data = self.__json_read()
+        if data == None:
+            raise QMPConnectError
+        if not data.has_key('QMP'):
+            raise QMPConnectError
+        return data['QMP']['capabilities']
+
+    def close(self):
+        self.sock.close()
+
+    def send_raw(self, line):
+        self.sock.send(str(line))
+        return self.__json_read()
+
+    def send(self, cmdline):
+        cmd = self.__build_cmd(cmdline)
+        self.__json_send(cmd)
+        resp = self.__json_read()
+        if resp == None:
+            return
+        elif resp.has_key('error'):
+            return resp['error']
+        else:
+            return resp['return']
+
+    def __build_cmd(self, cmdline):
+        cmdargs = cmdline.split()
+        qmpcmd = { 'execute': cmdargs[0], 'arguments': {} }
+        for arg in cmdargs[1:]:
+            opt = arg.split('=')
+            try:
+                value = int(opt[1])
+            except ValueError:
+                value = opt[1]
+            qmpcmd['arguments'][opt[0]] = value
+        return qmpcmd
+
+    def __json_send(self, cmd):
+        # XXX: We have to send any additional char, otherwise
+        # the Server won't read our input
+        self.sock.send(json.dumps(cmd) + ' ')
+
+    def __json_read(self):
+        try:
+            return json.loads(self.sock.recv(1024))
+        except ValueError:
+            return
+
+    def __init__(self, filename):
+        self.filename = filename
+        self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)

QMP/vm-info

@@ -0,0 +1,32 @@
+#!/usr/bin/python
+#
+# Print Virtual Machine information
+#
+# Usage:
+#
+# Start QEMU with:
+#
+# $ qemu [...] -monitor control,unix:./qmp,server
+#
+# Run vm-info:
+#
+# $ vm-info ./qmp
+#
+# Luiz Capitulino <lcapitulino@redhat.com>
+
+import qmp
+from sys import argv,exit
+
+def main():
+    if len(argv) != 2:
+        print 'vm-info <unix-socket>'
+        exit(1)
+
+    qemu = qmp.QEMUMonitorProtocol(argv[1])
+    qemu.connect()
+
+    for cmd in [ 'version', 'hpet', 'kvm', 'status', 'uuid', 'balloon' ]:
+        print cmd + ': ' + str(qemu.send('query-' + cmd))
+
+if __name__ == '__main__':
+    main()

README

@@ -1,106 +1,3 @@
-         QEMU README
-         ===========
+Read the documentation in qemu-doc.html.
 
-QEMU is a generic and open source machine & userspace emulator and
-virtualizer.
-
-QEMU is capable of emulating a complete machine in software without any
-need for hardware virtualization support. By using dynamic translation,
-it achieves very good performance. QEMU can also integrate with the Xen
-and KVM hypervisors to provide emulated hardware while allowing the
-hypervisor to manage the CPU. With hypervisor support, QEMU can achieve
-near native performance for CPUs. When QEMU emulates CPUs directly it is
-capable of running operating systems made for one machine (e.g. an ARMv7
-board) on a different machine (e.g. an x86_64 PC board).
-
-QEMU is also capable of providing userspace API virtualization for Linux
-and BSD kernel interfaces. This allows binaries compiled against one
-architecture ABI (e.g. the Linux PPC64 ABI) to be run on a host using a
-different architecture ABI (e.g. the Linux x86_64 ABI). This does not
-involve any hardware emulation, simply CPU and syscall emulation.
-
-QEMU aims to fit into a variety of use cases. It can be invoked directly
-by users wishing to have full control over its behaviour and settings.
-It also aims to facilitate integration into higher level management
-layers, by providing a stable command line interface and monitor API.
-It is commonly invoked indirectly via the libvirt library when using
-open source applications such as oVirt, OpenStack and virt-manager.
-
-QEMU as a whole is released under the GNU General Public License,
-version 2. For full licensing details, consult the LICENSE file.
-
-
-Building
-========
-
-QEMU is multi-platform software intended to be buildable on all modern
-Linux platforms, OS-X, Win32 (via the Mingw64 toolchain) and a variety
-of other UNIX targets. The simple steps to build QEMU are:
-
-  mkdir build
-  cd build
-  ../configure
-  make
-
-Additional information can also be found online via the QEMU website:
-
-  http://qemu-project.org/Hosts/Linux
-  http://qemu-project.org/Hosts/Mac
-  http://qemu-project.org/Hosts/W32
-
-
-Submitting patches
-==================
-
-The QEMU source code is maintained under the GIT version control system.
-
-   git clone git://git.qemu-project.org/qemu.git
-
-When submitting patches, the preferred approach is to use 'git
-format-patch' and/or 'git send-email' to format & send the mail to the
-qemu-devel@nongnu.org mailing list. All patches submitted must contain
-a 'Signed-off-by' line from the author. Patches should follow the
-guidelines set out in the HACKING and CODING_STYLE files.
-
-Additional information on submitting patches can be found online via
-the QEMU website
-
-  http://qemu-project.org/Contribute/SubmitAPatch
-  http://qemu-project.org/Contribute/TrivialPatches
-
-
-Bug reporting
-=============
-
-The QEMU project uses Launchpad as its primary upstream bug tracker. Bugs
-found when running code built from QEMU git or upstream released sources
-should be reported via:
-
-  https://bugs.launchpad.net/qemu/
-
-If using QEMU via an operating system vendor pre-built binary package, it
-is preferable to report bugs to the vendor's own bug tracker first. If
-the bug is also known to affect latest upstream code, it can also be
-reported via launchpad.
-
-For additional information on bug reporting consult:
-
-  http://qemu-project.org/Contribute/ReportABug
-
-
-Contact
-=======
-
-The QEMU community can be contacted in a number of ways, with the two
-main methods being email and IRC
-
- - qemu-devel@nongnu.org
-   http://lists.nongnu.org/mailman/listinfo/qemu-devel
- - #qemu on irc.oftc.net
-
-Information on additional methods of contacting the community can be
-found online via the QEMU website:
-
-  http://qemu-project.org/Contribute/StartHere
-
--- End
+Fabrice Bellard.

TODO

@@ -0,0 +1,37 @@
+General:
+-------
+- cycle counter for all archs
+- cpu_interrupt() win32/SMP fix
+- merge PIC spurious interrupt patch
+- warning for OS/2: must not use 128 MB memory (merge bochs cmos patch ?)
+- config file (at least for windows/Mac OS X)
+- update doc: PCI infos.
+- basic VGA optimizations
+- better code fetch
+- do not resize vga if invalid size.
+- TLB code protection support for PPC
+- disable SMC handling for ARM/SPARC/PPC (not finished)
+- see undefined flags for BTx insn
+- keyboard output buffer filling timing emulation
+- tests for each target CPU
+- fix all remaining thread lock issues (must put TBs in a specific invalid
+  state, find a solution for tb_flush()).
+
+ppc specific:
+------------
+- TLB invalidate not needed if msr_pr changes
+- enable shift optimizations ?
+
+linux-user specific:
+-------------------
+- remove threading support as it cannot work at this point
+- improve IPC syscalls
+- more syscalls (in particular all 64 bit ones, IPCs, fix 64 bit
+  issues, fix 16 bit uid issues)
+- use kernel traps for unaligned accesses on ARM ?
+
+
+lower priority:
+--------------
+- int15 ah=86: use better timing
+- use -msoft-float on ARM

VERSION

@@ -1 +1 @@
-2.9.50
+0.12.2

a.out.h

@@ -0,0 +1,430 @@
+/* a.out.h
+
+   Copyright 1997, 1998, 1999, 2001 Red Hat, Inc.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef _A_OUT_H_
+#define _A_OUT_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define COFF_IMAGE_WITH_PE
+#define COFF_LONG_SECTION_NAMES
+
+/*** coff information for Intel 386/486.  */
+
+
+/********************** FILE HEADER **********************/
+
+struct external_filehdr {
+  short f_magic;	/* magic number			*/
+  short f_nscns;	/* number of sections		*/
+  host_ulong f_timdat;	/* time & date stamp		*/
+  host_ulong f_symptr;	/* file pointer to symtab	*/
+  host_ulong f_nsyms;	/* number of symtab entries	*/
+  short f_opthdr;	/* sizeof(optional hdr)		*/
+  short f_flags;	/* flags			*/
+};
+
+/* Bits for f_flags:
+ *	F_RELFLG	relocation info stripped from file
+ *	F_EXEC		file is executable (no unresolved external references)
+ *	F_LNNO		line numbers stripped from file
+ *	F_LSYMS		local symbols stripped from file
+ *	F_AR32WR	file has byte ordering of an AR32WR machine (e.g. vax)
+ */
+
+#define F_RELFLG	(0x0001)
+#define F_EXEC		(0x0002)
+#define F_LNNO		(0x0004)
+#define F_LSYMS		(0x0008)
+
+
+
+#define	I386MAGIC	0x14c
+#define I386PTXMAGIC	0x154
+#define I386AIXMAGIC	0x175
+
+/* This is Lynx's all-platform magic number for executables. */
+
+#define LYNXCOFFMAGIC	0415
+
+#define I386BADMAG(x) (((x).f_magic != I386MAGIC) \
+		       && (x).f_magic != I386AIXMAGIC \
+		       && (x).f_magic != I386PTXMAGIC \
+		       && (x).f_magic != LYNXCOFFMAGIC)
+
+#define	FILHDR	struct external_filehdr
+#define	FILHSZ	20
+
+
+/********************** AOUT "OPTIONAL HEADER"=
+ **********************/
+
+
+typedef struct
+{
+  unsigned short magic;		/* type of file				*/
+  unsigned short vstamp;	/* version stamp			*/
+  host_ulong	tsize;		/* text size in bytes, padded to FW bdry*/
+  host_ulong	dsize;		/* initialized data "  "		*/
+  host_ulong	bsize;		/* uninitialized data "   "		*/
+  host_ulong	entry;		/* entry pt.				*/
+  host_ulong text_start;	/* base of text used for this file */
+  host_ulong data_start;	/* base of data used for this file=
+ */
+}
+AOUTHDR;
+
+#define AOUTSZ 28
+#define AOUTHDRSZ 28
+
+#define OMAGIC          0404    /* object files, eg as output */
+#define ZMAGIC          0413    /* demand load format, eg normal ld output */
+#define STMAGIC		0401	/* target shlib */
+#define SHMAGIC		0443	/* host   shlib */
+
+
+/* define some NT default values */
+/*  #define NT_IMAGE_BASE        0x400000 moved to internal.h */
+#define NT_SECTION_ALIGNMENT 0x1000
+#define NT_FILE_ALIGNMENT    0x200
+#define NT_DEF_RESERVE       0x100000
+#define NT_DEF_COMMIT        0x1000
+
+/********************** SECTION HEADER **********************/
+
+
+struct external_scnhdr {
+  char		s_name[8];	/* section name			*/
+  host_ulong	s_paddr;	/* physical address, offset
+				   of last addr in scn */
+  host_ulong	s_vaddr;	/* virtual address		*/
+  host_ulong	s_size;		/* section size			*/
+  host_ulong	s_scnptr;	/* file ptr to raw data for section */
+  host_ulong	s_relptr;	/* file ptr to relocation	*/
+  host_ulong	s_lnnoptr;	/* file ptr to line numbers	*/
+  unsigned short s_nreloc;	/* number of relocation entries	*/
+  unsigned short s_nlnno;	/* number of line number entries*/
+  host_ulong	s_flags;	/* flags			*/
+};
+
+#define	SCNHDR	struct external_scnhdr
+#define	SCNHSZ	40
+
+/*
+ * names of "special" sections
+ */
+#define _TEXT	".text"
+#define _DATA	".data"
+#define _BSS	".bss"
+#define _COMMENT ".comment"
+#define _LIB ".lib"
+
+/********************** LINE NUMBERS **********************/
+
+/* 1 line number entry for every "breakpointable" source line in a section.
+ * Line numbers are grouped on a per function basis; first entry in a function
+ * grouping will have l_lnno = 0 and in place of physical address will be the
+ * symbol table index of the function name.
+ */
+struct external_lineno {
+  union {
+    host_ulong l_symndx; /* function name symbol index, iff l_lnno 0 */
+    host_ulong l_paddr;	/* (physical) address of line number	*/
+  } l_addr;
+  unsigned short l_lnno;	/* line number		*/
+};
+
+#define	LINENO	struct external_lineno
+#define	LINESZ	6
+
+/********************** SYMBOLS **********************/
+
+#define E_SYMNMLEN	8	/* # characters in a symbol name	*/
+#define E_FILNMLEN	14	/* # characters in a file name		*/
+#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */
+
+struct __attribute__((packed)) external_syment
+{
+  union {
+    char e_name[E_SYMNMLEN];
+    struct {
+      host_ulong e_zeroes;
+      host_ulong e_offset;
+    } e;
+  } e;
+  host_ulong e_value;
+  unsigned short e_scnum;
+  unsigned short e_type;
+  char e_sclass[1];
+  char e_numaux[1];
+};
+
+#define N_BTMASK	(0xf)
+#define N_TMASK		(0x30)
+#define N_BTSHFT	(4)
+#define N_TSHIFT	(2)
+
+union external_auxent {
+  struct {
+    host_ulong x_tagndx;	/* str, un, or enum tag indx */
+    union {
+      struct {
+	unsigned short  x_lnno; /* declaration line number */
+	unsigned short  x_size; /* str/union/array size */
+      } x_lnsz;
+      host_ulong x_fsize;	/* size of function */
+    } x_misc;
+    union {
+      struct {			/* if ISFCN, tag, or .bb */
+	host_ulong x_lnnoptr;/* ptr to fcn line # */
+	host_ulong x_endndx;	/* entry ndx past block end */
+      } x_fcn;
+      struct {			/* if ISARY, up to 4 dimen. */
+	char x_dimen[E_DIMNUM][2];
+      } x_ary;
+    } x_fcnary;
+    unsigned short x_tvndx;	/* tv index */
+  } x_sym;
+
+  union {
+    char x_fname[E_FILNMLEN];
+    struct {
+      host_ulong x_zeroes;
+      host_ulong x_offset;
+    } x_n;
+  } x_file;
+
+  struct {
+    host_ulong x_scnlen;	/* section length */
+    unsigned short x_nreloc;	/* # relocation entries */
+    unsigned short x_nlinno;	/* # line numbers */
+    host_ulong x_checksum;	/* section COMDAT checksum */
+    unsigned short x_associated;/* COMDAT associated section index */
+    char x_comdat[1];		/* COMDAT selection number */
+  } x_scn;
+
+  struct {
+    host_ulong x_tvfill;	/* tv fill value */
+    unsigned short x_tvlen;	/* length of .tv */
+    char x_tvran[2][2];		/* tv range */
+  } x_tv;	/* info about .tv section (in auxent of symbol .tv)) */
+
+};
+
+#define	SYMENT	struct external_syment
+#define	SYMESZ	18
+#define	AUXENT	union external_auxent
+#define	AUXESZ	18
+
+#define _ETEXT	"etext"
+
+/********************** RELOCATION DIRECTIVES **********************/
+
+struct external_reloc {
+  char r_vaddr[4];
+  char r_symndx[4];
+  char r_type[2];
+};
+
+#define RELOC struct external_reloc
+#define RELSZ 10
+
+/* end of coff/i386.h */
+
+/* PE COFF header information */
+
+#ifndef _PE_H
+#define _PE_H
+
+/* NT specific file attributes */
+#define IMAGE_FILE_RELOCS_STRIPPED           0x0001
+#define IMAGE_FILE_EXECUTABLE_IMAGE          0x0002
+#define IMAGE_FILE_LINE_NUMS_STRIPPED        0x0004
+#define IMAGE_FILE_LOCAL_SYMS_STRIPPED       0x0008
+#define IMAGE_FILE_BYTES_REVERSED_LO         0x0080
+#define IMAGE_FILE_32BIT_MACHINE             0x0100
+#define IMAGE_FILE_DEBUG_STRIPPED            0x0200
+#define IMAGE_FILE_SYSTEM                    0x1000
+#define IMAGE_FILE_DLL                       0x2000
+#define IMAGE_FILE_BYTES_REVERSED_HI         0x8000
+
+/* additional flags to be set for section headers to allow the NT loader to
+   read and write to the section data (to replace the addresses of data in
+   dlls for one thing); also to execute the section in .text's case=
+ */
+#define IMAGE_SCN_MEM_DISCARDABLE 0x02000000
+#define IMAGE_SCN_MEM_EXECUTE     0x20000000
+#define IMAGE_SCN_MEM_READ        0x40000000
+#define IMAGE_SCN_MEM_WRITE       0x80000000
+
+/*
+ * Section characteristics added for ppc-nt
+ */
+
+#define IMAGE_SCN_TYPE_NO_PAD                0x00000008  /* Reserved.  */
+
+#define IMAGE_SCN_CNT_CODE                   0x00000020  /* Section contains code. */
+#define IMAGE_SCN_CNT_INITIALIZED_DATA       0x00000040  /* Section contains initialized data. */
+#define IMAGE_SCN_CNT_UNINITIALIZED_DATA     0x00000080  /* Section contains uninitialized data. */
+
+#define IMAGE_SCN_LNK_OTHER                  0x00000100  /* Reserved.  */
+#define IMAGE_SCN_LNK_INFO                   0x00000200  /* Section contains comments or some other type of information. */
+#define IMAGE_SCN_LNK_REMOVE                 0x00000800  /* Section contents will not become part of image. */
+#define IMAGE_SCN_LNK_COMDAT                 0x00001000  /* Section contents comdat. */
+
+#define IMAGE_SCN_MEM_FARDATA                0x00008000
+
+#define IMAGE_SCN_MEM_PURGEABLE              0x00020000
+#define IMAGE_SCN_MEM_16BIT                  0x00020000
+#define IMAGE_SCN_MEM_LOCKED                 0x00040000
+#define IMAGE_SCN_MEM_PRELOAD                0x00080000
+
+#define IMAGE_SCN_ALIGN_1BYTES               0x00100000
+#define IMAGE_SCN_ALIGN_2BYTES               0x00200000
+#define IMAGE_SCN_ALIGN_4BYTES               0x00300000
+#define IMAGE_SCN_ALIGN_8BYTES               0x00400000
+#define IMAGE_SCN_ALIGN_16BYTES              0x00500000  /* Default alignment if no others are specified. */
+#define IMAGE_SCN_ALIGN_32BYTES              0x00600000
+#define IMAGE_SCN_ALIGN_64BYTES              0x00700000
+
+
+#define IMAGE_SCN_LNK_NRELOC_OVFL            0x01000000  /* Section contains extended relocations. */
+#define IMAGE_SCN_MEM_NOT_CACHED             0x04000000  /* Section is not cachable.               */
+#define IMAGE_SCN_MEM_NOT_PAGED              0x08000000  /* Section is not pageable.               */
+#define IMAGE_SCN_MEM_SHARED                 0x10000000  /* Section is shareable.                  */
+
+/* COMDAT selection codes.  */
+
+#define IMAGE_COMDAT_SELECT_NODUPLICATES     (1) /* Warn if duplicates.  */
+#define IMAGE_COMDAT_SELECT_ANY		     (2) /* No warning.  */
+#define IMAGE_COMDAT_SELECT_SAME_SIZE	     (3) /* Warn if different size.  */
+#define IMAGE_COMDAT_SELECT_EXACT_MATCH	     (4) /* Warn if different.  */
+#define IMAGE_COMDAT_SELECT_ASSOCIATIVE	     (5) /* Base on other section.  */
+
+/* Magic values that are true for all dos/nt implementations */
+#define DOSMAGIC       0x5a4d
+#define NT_SIGNATURE   0x00004550
+
+/* NT allows long filenames, we want to accommodate this.  This may break
+     some of the bfd functions */
+#undef  FILNMLEN
+#define FILNMLEN	18	/* # characters in a file name		*/
+
+
+#ifdef COFF_IMAGE_WITH_PE
+/* The filehdr is only weired in images */
+
+#undef FILHDR
+struct external_PE_filehdr
+{
+  /* DOS header fields */
+  unsigned short e_magic;	/* Magic number, 0x5a4d */
+  unsigned short e_cblp;	/* Bytes on last page of file, 0x90 */
+  unsigned short e_cp;		/* Pages in file, 0x3 */
+  unsigned short e_crlc;	/* Relocations, 0x0 */
+  unsigned short e_cparhdr;	/* Size of header in paragraphs, 0x4 */
+  unsigned short e_minalloc;	/* Minimum extra paragraphs needed, 0x0 */
+  unsigned short e_maxalloc;	/* Maximum extra paragraphs needed, 0xFFFF */
+  unsigned short e_ss;		/* Initial (relative) SS value, 0x0 */
+  unsigned short e_sp;		/* Initial SP value, 0xb8 */
+  unsigned short e_csum;	/* Checksum, 0x0 */
+  unsigned short e_ip;		/* Initial IP value, 0x0 */
+  unsigned short e_cs;		/* Initial (relative) CS value, 0x0 */
+  unsigned short e_lfarlc;	/* File address of relocation table, 0x40 */
+  unsigned short e_ovno;	/* Overlay number, 0x0 */
+  char e_res[4][2];		/* Reserved words, all 0x0 */
+  unsigned short e_oemid;	/* OEM identifier (for e_oeminfo), 0x0 */
+  unsigned short e_oeminfo;	/* OEM information; e_oemid specific, 0x0 */
+  char e_res2[10][2];		/* Reserved words, all 0x0 */
+  host_ulong e_lfanew;	/* File address of new exe header, 0x80 */
+  char dos_message[16][4];	/* other stuff, always follow DOS header */
+  unsigned int nt_signature;	/* required NT signature, 0x4550 */
+
+  /* From standard header */
+
+  unsigned short f_magic;	/* magic number			*/
+  unsigned short f_nscns;	/* number of sections		*/
+  host_ulong f_timdat;	/* time & date stamp		*/
+  host_ulong f_symptr;	/* file pointer to symtab	*/
+  host_ulong f_nsyms;	/* number of symtab entries	*/
+  unsigned short f_opthdr;	/* sizeof(optional hdr)		*/
+  unsigned short f_flags;	/* flags			*/
+};
+
+
+#define FILHDR struct external_PE_filehdr
+#undef FILHSZ
+#define FILHSZ 152
+
+#endif
+
+typedef struct
+{
+  unsigned short magic;		/* type of file				*/
+  unsigned short vstamp;	/* version stamp			*/
+  host_ulong	tsize;		/* text size in bytes, padded to FW bdry*/
+  host_ulong	dsize;		/* initialized data "  "		*/
+  host_ulong	bsize;		/* uninitialized data "   "		*/
+  host_ulong	entry;		/* entry pt.				*/
+  host_ulong text_start;	/* base of text used for this file */
+  host_ulong data_start;	/* base of all data used for this file */
+
+  /* NT extra fields; see internal.h for descriptions */
+  host_ulong  ImageBase;
+  host_ulong  SectionAlignment;
+  host_ulong  FileAlignment;
+  unsigned short  MajorOperatingSystemVersion;
+  unsigned short  MinorOperatingSystemVersion;
+  unsigned short  MajorImageVersion;
+  unsigned short  MinorImageVersion;
+  unsigned short  MajorSubsystemVersion;
+  unsigned short  MinorSubsystemVersion;
+  char  Reserved1[4];
+  host_ulong  SizeOfImage;
+  host_ulong  SizeOfHeaders;
+  host_ulong  CheckSum;
+  unsigned short Subsystem;
+  unsigned short DllCharacteristics;
+  host_ulong  SizeOfStackReserve;
+  host_ulong  SizeOfStackCommit;
+  host_ulong  SizeOfHeapReserve;
+  host_ulong  SizeOfHeapCommit;
+  host_ulong  LoaderFlags;
+  host_ulong  NumberOfRvaAndSizes;
+  /* IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES]; */
+  char  DataDirectory[16][2][4]; /* 16 entries, 2 elements/entry, 4 chars */
+
+} PEAOUTHDR;
+
+
+#undef AOUTSZ
+#define AOUTSZ (AOUTHDRSZ + 196)
+
+#undef  E_FILNMLEN
+#define E_FILNMLEN	18	/* # characters in a file name		*/
+#endif
+
+/* end of coff/pe.h */
+
+#define DT_NON		(0)	/* no derived type */
+#define DT_PTR		(1)	/* pointer */
+#define DT_FCN		(2)	/* function */
+#define DT_ARY		(3)	/* array */
+
+#define ISPTR(x)	(((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
+#define ISFCN(x)	(((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
+#define ISARY(x)	(((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _A_OUT_H_ */

accel.c

@@ -1,155 +0,0 @@
-/*
- * QEMU System Emulator, accelerator interfaces
- *
- * Copyright (c) 2003-2008 Fabrice Bellard
- * Copyright (c) 2014 Red Hat Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "qemu/osdep.h"
-#include "sysemu/accel.h"
-#include "hw/boards.h"
-#include "qemu-common.h"
-#include "sysemu/arch_init.h"
-#include "sysemu/sysemu.h"
-#include "sysemu/kvm.h"
-#include "sysemu/qtest.h"
-#include "hw/xen/xen.h"
-#include "qom/object.h"
-
-int tcg_tb_size;
-static bool tcg_allowed = true;
-
-static int tcg_init(MachineState *ms)
-{
-    tcg_exec_init(tcg_tb_size * 1024 * 1024);
-    return 0;
-}
-
-static const TypeInfo accel_type = {
-    .name = TYPE_ACCEL,
-    .parent = TYPE_OBJECT,
-    .class_size = sizeof(AccelClass),
-    .instance_size = sizeof(AccelState),
-};
-
-/* Lookup AccelClass from opt_name. Returns NULL if not found */
-static AccelClass *accel_find(const char *opt_name)
-{
-    char *class_name = g_strdup_printf(ACCEL_CLASS_NAME("%s"), opt_name);
-    AccelClass *ac = ACCEL_CLASS(object_class_by_name(class_name));
-    g_free(class_name);
-    return ac;
-}
-
-static int accel_init_machine(AccelClass *acc, MachineState *ms)
-{
-    ObjectClass *oc = OBJECT_CLASS(acc);
-    const char *cname = object_class_get_name(oc);
-    AccelState *accel = ACCEL(object_new(cname));
-    int ret;
-    ms->accelerator = accel;
-    *(acc->allowed) = true;
-    ret = acc->init_machine(ms);
-    if (ret < 0) {
-        ms->accelerator = NULL;
-        *(acc->allowed) = false;
-        object_unref(OBJECT(accel));
-    }
-    return ret;
-}
-
-void configure_accelerator(MachineState *ms)
-{
-    const char *p;
-    char buf[10];
-    int ret;
-    bool accel_initialised = false;
-    bool init_failed = false;
-    AccelClass *acc = NULL;
-
-    p = qemu_opt_get(qemu_get_machine_opts(), "accel");
-    if (p == NULL) {
-        /* Use the default "accelerator", tcg */
-        p = "tcg";
-    }
-
-    while (!accel_initialised && *p != '\0') {
-        if (*p == ':') {
-            p++;
-        }
-        p = get_opt_name(buf, sizeof(buf), p, ':');
-        acc = accel_find(buf);
-        if (!acc) {
-            fprintf(stderr, "\"%s\" accelerator not found.\n", buf);
-            continue;
-        }
-        if (acc->available && !acc->available()) {
-            printf("%s not supported for this target\n",
-                   acc->name);
-            continue;
-        }
-        ret = accel_init_machine(acc, ms);
-        if (ret < 0) {
-            init_failed = true;
-            fprintf(stderr, "failed to initialize %s: %s\n",
-                    acc->name,
-                    strerror(-ret));
-        } else {
-            accel_initialised = true;
-        }
-    }
-
-    if (!accel_initialised) {
-        if (!init_failed) {
-            fprintf(stderr, "No accelerator found!\n");
-        }
-        exit(1);
-    }
-
-    if (init_failed) {
-        fprintf(stderr, "Back to %s accelerator.\n", acc->name);
-    }
-}
-
-
-static void tcg_accel_class_init(ObjectClass *oc, void *data)
-{
-    AccelClass *ac = ACCEL_CLASS(oc);
-    ac->name = "tcg";
-    ac->init_machine = tcg_init;
-    ac->allowed = &tcg_allowed;
-}
-
-#define TYPE_TCG_ACCEL ACCEL_CLASS_NAME("tcg")
-
-static const TypeInfo tcg_accel_type = {
-    .name = TYPE_TCG_ACCEL,
-    .parent = TYPE_ACCEL,
-    .class_init = tcg_accel_class_init,
-};
-
-static void register_accel_types(void)
-{
-    type_register_static(&accel_type);
-    type_register_static(&tcg_accel_type);
-}
-
-type_init(register_accel_types);

acl.c

@@ -23,9 +23,9 @@
  */
 
 
-#include "qemu/osdep.h"
 #include "qemu-common.h"
-#include "qemu/acl.h"
+#include "sysemu.h"
+#include "acl.h"
 
 #ifdef CONFIG_FNMATCH
 #include <fnmatch.h>
@@ -56,8 +56,8 @@ qemu_acl *qemu_acl_init(const char *aclname)
     if (acl)
         return acl;
 
-    acl = g_malloc(sizeof(*acl));
-    acl->aclname = g_strdup(aclname);
+    acl = qemu_malloc(sizeof(*acl));
+    acl->aclname = qemu_strdup(aclname);
     /* Deny by default, so there is no window of "open
      * access" between QEMU starting, and the user setting
      * up ACLs in the monitor */
@@ -66,7 +66,7 @@ qemu_acl *qemu_acl_init(const char *aclname)
     acl->nentries = 0;
     QTAILQ_INIT(&acl->entries);
 
-    acls = g_realloc(acls, sizeof(*acls) * (nacls +1));
+    acls = qemu_realloc(acls, sizeof(*acls) * (nacls +1));
     acls[nacls] = acl;
     nacls++;
 
@@ -96,16 +96,16 @@ int qemu_acl_party_is_allowed(qemu_acl *acl,
 
 void qemu_acl_reset(qemu_acl *acl)
 {
-    qemu_acl_entry *entry, *next_entry;
+    qemu_acl_entry *entry;
 
     /* Put back to deny by default, so there is no window
      * of "open access" while the user re-initializes the
      * access control list */
     acl->defaultDeny = 1;
-    QTAILQ_FOREACH_SAFE(entry, &acl->entries, next, next_entry) {
+    QTAILQ_FOREACH(entry, &acl->entries, next) {
         QTAILQ_REMOVE(&acl->entries, entry, next);
-        g_free(entry->match);
-        g_free(entry);
+        free(entry->match);
+        free(entry);
     }
     acl->nentries = 0;
 }
@@ -117,8 +117,8 @@ int qemu_acl_append(qemu_acl *acl,
 {
     qemu_acl_entry *entry;
 
-    entry = g_malloc(sizeof(*entry));
-    entry->match = g_strdup(match);
+    entry = qemu_malloc(sizeof(*entry));
+    entry->match = qemu_strdup(match);
     entry->deny = deny;
 
     QTAILQ_INSERT_TAIL(&acl->entries, entry, next);
@@ -133,23 +133,23 @@ int qemu_acl_insert(qemu_acl *acl,
                     const char *match,
                     int index)
 {
+    qemu_acl_entry *entry;
     qemu_acl_entry *tmp;
     int i = 0;
 
     if (index <= 0)
         return -1;
-    if (index > acl->nentries) {
+    if (index >= acl->nentries)
         return qemu_acl_append(acl, deny, match);
-    }
+
+
+    entry = qemu_malloc(sizeof(*entry));
+    entry->match = qemu_strdup(match);
+    entry->deny = deny;
 
     QTAILQ_FOREACH(tmp, &acl->entries, next) {
         i++;
         if (i == index) {
-            qemu_acl_entry *entry;
-            entry = g_malloc(sizeof(*entry));
-            entry->match = g_strdup(match);
-            entry->deny = deny;
-
             QTAILQ_INSERT_BEFORE(tmp, entry, next);
             acl->nentries++;
             break;
@@ -169,11 +169,17 @@ int qemu_acl_remove(qemu_acl *acl,
         i++;
         if (strcmp(entry->match, match) == 0) {
             QTAILQ_REMOVE(&acl->entries, entry, next);
-            acl->nentries--;
-            g_free(entry->match);
-            g_free(entry);
             return i;
         }
     }
     return -1;
 }
+
+
+/*
+ * Local variables:
+ *  c-indent-level: 4
+ *  c-basic-offset: 4
+ *  tab-width: 8
+ * End:
+ */

acl.h

@@ -22,10 +22,10 @@
  * THE SOFTWARE.
  */
 
-#ifndef QEMU_ACL_H
-#define QEMU_ACL_H
+#ifndef __QEMU_ACL_H__
+#define __QEMU_ACL_H__
 
-#include "qemu/queue.h"
+#include "qemu-queue.h"
 
 typedef struct qemu_acl_entry qemu_acl_entry;
 typedef struct qemu_acl qemu_acl;
@@ -63,4 +63,12 @@ int qemu_acl_insert(qemu_acl *acl,
 int qemu_acl_remove(qemu_acl *acl,
 		    const char *match);
 
-#endif /* QEMU_ACL_H */
+#endif /* __QEMU_ACL_H__ */
+
+/*
+ * Local variables:
+ *  c-indent-level: 4
+ *  c-basic-offset: 4
+ *  tab-width: 8
+ * End:
+ */

aes.h

@@ -0,0 +1,26 @@
+#ifndef QEMU_AES_H
+#define QEMU_AES_H
+
+#define AES_MAXNR 14
+#define AES_BLOCK_SIZE 16
+
+struct aes_key_st {
+    uint32_t rd_key[4 *(AES_MAXNR + 1)];
+    int rounds;
+};
+typedef struct aes_key_st AES_KEY;
+
+int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
+	AES_KEY *key);
+int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
+	AES_KEY *key);
+
+void AES_encrypt(const unsigned char *in, unsigned char *out,
+	const AES_KEY *key);
+void AES_decrypt(const unsigned char *in, unsigned char *out,
+	const AES_KEY *key);
+void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
+		     const unsigned long length, const AES_KEY *key,
+		     unsigned char *ivec, const int enc);
+
+#endif

aio.c

@@ -0,0 +1,228 @@
+/*
+ * QEMU aio implementation
+ *
+ * Copyright IBM, Corp. 2008
+ *
+ * Authors:
+ *  Anthony Liguori   <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu-common.h"
+#include "block.h"
+#include "qemu-queue.h"
+#include "qemu_socket.h"
+
+typedef struct AioHandler AioHandler;
+
+/* The list of registered AIO handlers */
+static QLIST_HEAD(, AioHandler) aio_handlers;
+
+/* This is a simple lock used to protect the aio_handlers list.  Specifically,
+ * it's used to ensure that no callbacks are removed while we're walking and
+ * dispatching callbacks.
+ */
+static int walking_handlers;
+
+struct AioHandler
+{
+    int fd;
+    IOHandler *io_read;
+    IOHandler *io_write;
+    AioFlushHandler *io_flush;
+    AioProcessQueue *io_process_queue;
+    int deleted;
+    void *opaque;
+    QLIST_ENTRY(AioHandler) node;
+};
+
+static AioHandler *find_aio_handler(int fd)
+{
+    AioHandler *node;
+
+    QLIST_FOREACH(node, &aio_handlers, node) {
+        if (node->fd == fd)
+            if (!node->deleted)
+                return node;
+    }
+
+    return NULL;
+}
+
+int qemu_aio_set_fd_handler(int fd,
+                            IOHandler *io_read,
+                            IOHandler *io_write,
+                            AioFlushHandler *io_flush,
+                            AioProcessQueue *io_process_queue,
+                            void *opaque)
+{
+    AioHandler *node;
+
+    node = find_aio_handler(fd);
+
+    /* Are we deleting the fd handler? */
+    if (!io_read && !io_write) {
+        if (node) {
+            /* If the lock is held, just mark the node as deleted */
+            if (walking_handlers)
+                node->deleted = 1;
+            else {
+                /* Otherwise, delete it for real.  We can't just mark it as
+                 * deleted because deleted nodes are only cleaned up after
+                 * releasing the walking_handlers lock.
+                 */
+                QLIST_REMOVE(node, node);
+                qemu_free(node);
+            }
+        }
+    } else {
+        if (node == NULL) {
+            /* Alloc and insert if it's not already there */
+            node = qemu_mallocz(sizeof(AioHandler));
+            node->fd = fd;
+            QLIST_INSERT_HEAD(&aio_handlers, node, node);
+        }
+        /* Update handler with latest information */
+        node->io_read = io_read;
+        node->io_write = io_write;
+        node->io_flush = io_flush;
+        node->io_process_queue = io_process_queue;
+        node->opaque = opaque;
+    }
+
+    qemu_set_fd_handler2(fd, NULL, io_read, io_write, opaque);
+
+    return 0;
+}
+
+void qemu_aio_flush(void)
+{
+    AioHandler *node;
+    int ret;
+
+    do {
+        ret = 0;
+
+	/*
+	 * If there are pending emulated aio start them now so flush
+	 * will be able to return 1.
+	 */
+        qemu_aio_wait();
+
+        QLIST_FOREACH(node, &aio_handlers, node) {
+            ret |= node->io_flush(node->opaque);
+        }
+    } while (qemu_bh_poll() || ret > 0);
+}
+
+int qemu_aio_process_queue(void)
+{
+    AioHandler *node;
+    int ret = 0;
+
+    walking_handlers = 1;
+
+    QLIST_FOREACH(node, &aio_handlers, node) {
+        if (node->io_process_queue) {
+            if (node->io_process_queue(node->opaque)) {
+                ret = 1;
+            }
+        }
+    }
+
+    walking_handlers = 0;
+
+    return ret;
+}
+
+void qemu_aio_wait(void)
+{
+    int ret;
+
+    if (qemu_bh_poll())
+        return;
+
+    /*
+     * If there are callbacks left that have been queued, we need to call then.
+     * Return afterwards to avoid waiting needlessly in select().
+     */
+    if (qemu_aio_process_queue())
+        return;
+
+    do {
+        AioHandler *node;
+        fd_set rdfds, wrfds;
+        int max_fd = -1;
+
+        walking_handlers = 1;
+
+        FD_ZERO(&rdfds);
+        FD_ZERO(&wrfds);
+
+        /* fill fd sets */
+        QLIST_FOREACH(node, &aio_handlers, node) {
+            /* If there aren't pending AIO operations, don't invoke callbacks.
+             * Otherwise, if there are no AIO requests, qemu_aio_wait() would
+             * wait indefinitely.
+             */
+            if (node->io_flush && node->io_flush(node->opaque) == 0)
+                continue;
+
+            if (!node->deleted && node->io_read) {
+                FD_SET(node->fd, &rdfds);
+                max_fd = MAX(max_fd, node->fd + 1);
+            }
+            if (!node->deleted && node->io_write) {
+                FD_SET(node->fd, &wrfds);
+                max_fd = MAX(max_fd, node->fd + 1);
+            }
+        }
+
+        walking_handlers = 0;
+
+        /* No AIO operations?  Get us out of here */
+        if (max_fd == -1)
+            break;
+
+        /* wait until next event */
+        ret = select(max_fd, &rdfds, &wrfds, NULL, NULL);
+        if (ret == -1 && errno == EINTR)
+            continue;
+
+        /* if we have any readable fds, dispatch event */
+        if (ret > 0) {
+            walking_handlers = 1;
+
+            /* we have to walk very carefully in case
+             * qemu_aio_set_fd_handler is called while we're walking */
+            node = QLIST_FIRST(&aio_handlers);
+            while (node) {
+                AioHandler *tmp;
+
+                if (!node->deleted &&
+                    FD_ISSET(node->fd, &rdfds) &&
+                    node->io_read) {
+                    node->io_read(node->opaque);
+                }
+                if (!node->deleted &&
+                    FD_ISSET(node->fd, &wrfds) &&
+                    node->io_write) {
+                    node->io_write(node->opaque);
+                }
+
+                tmp = node;
+                node = QLIST_NEXT(node, node);
+
+                if (tmp->deleted) {
+                    QLIST_REMOVE(tmp, node);
+                    qemu_free(tmp);
+                }
+            }
+
+            walking_handlers = 0;
+        }
+    } while (ret == 0);
+}

alpha.ld

@@ -0,0 +1,127 @@
+OUTPUT_FORMAT("elf64-alpha", "elf64-alpha",
+	      "elf64-alpha")
+OUTPUT_ARCH(alpha)
+ENTRY(__start)
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = 0x60000000 + SIZEOF_HEADERS;
+  .interp     : { *(.interp) 	}
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .gnu.version   : { *(.gnu.version)	}
+  .gnu.version_d   : { *(.gnu.version_d)	}
+  .gnu.version_r   : { *(.gnu.version_r)	}
+  .rel.text      :
+    { *(.rel.text) *(.rel.gnu.linkonce.t*) }
+  .rela.text     :
+    { *(.rela.text) *(.rela.gnu.linkonce.t*) }
+  .rel.data      :
+    { *(.rel.data) *(.rel.gnu.linkonce.d*) }
+  .rela.data     :
+    { *(.rela.data) *(.rela.gnu.linkonce.d*) }
+  .rel.rodata    :
+    { *(.rel.rodata) *(.rel.gnu.linkonce.r*) }
+  .rela.rodata   :
+    { *(.rela.rodata) *(.rela.gnu.linkonce.r*) }
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.init      : { *(.rel.init)	}
+  .rela.init     : { *(.rela.init)	}
+  .rel.fini      : { *(.rel.fini)	}
+  .rela.fini     : { *(.rela.fini)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	} =0x47ff041f
+  .text      :
+  {
+    *(.text)
+    /* .gnu.warning sections are handled specially by elf32.em.  */
+    *(.gnu.warning)
+    *(.gnu.linkonce.t*)
+  } =0x47ff041f
+  _etext = .;
+  PROVIDE (etext = .);
+  .fini      : { *(.fini)    } =0x47ff041f
+  .rodata    : { *(.rodata) *(.gnu.linkonce.r*) }
+  .rodata1   : { *(.rodata1) }
+  .reginfo : { *(.reginfo) }
+  /* Adjust the address for the data segment.  We want to adjust up to
+     the same address within the page on the next page up.  */
+  . = ALIGN(0x100000) + (. & (0x100000 - 1));
+  .data    :
+  {
+    *(.data)
+    *(.gnu.linkonce.d*)
+    CONSTRUCTORS
+  }
+  .data1   : { *(.data1) }
+  .ctors         :
+  {
+    *(.ctors)
+  }
+  .dtors         :
+  {
+    *(.dtors)
+  }
+  .plt      : { *(.plt)	}
+  .got           : { *(.got.plt) *(.got) }
+  .dynamic       : { *(.dynamic) }
+  /* We want the small data sections together, so single-instruction offsets
+     can access them all, and initialized data all before uninitialized, so
+     we can shorten the on-disk segment size.  */
+  .sdata     : { *(.sdata) }
+  _edata  =  .;
+  PROVIDE (edata = .);
+  __bss_start = .;
+  .sbss      : { *(.sbss) *(.scommon) }
+  .bss       :
+  {
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+  /* Stabs debugging sections.  */
+  .stab 0 : { *(.stab) }
+  .stabstr 0 : { *(.stabstr) }
+  .stab.excl 0 : { *(.stab.excl) }
+  .stab.exclstr 0 : { *(.stab.exclstr) }
+  .stab.index 0 : { *(.stab.index) }
+  .stab.indexstr 0 : { *(.stab.indexstr) }
+  .comment 0 : { *(.comment) }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* These must appear regardless of  .  */
+}

arch_init.c

@@ -1,114 +0,0 @@
-/*
- * QEMU System Emulator
- *
- * Copyright (c) 2003-2008 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "cpu.h"
-#include "sysemu/sysemu.h"
-#include "sysemu/arch_init.h"
-#include "hw/pci/pci.h"
-#include "hw/audio/soundhw.h"
-#include "qemu/config-file.h"
-#include "qemu/error-report.h"
-#include "qmp-commands.h"
-#include "hw/acpi/acpi.h"
-#include "qemu/help_option.h"
-
-#ifdef TARGET_SPARC
-int graphic_width = 1024;
-int graphic_height = 768;
-int graphic_depth = 8;
-#else
-int graphic_width = 800;
-int graphic_height = 600;
-int graphic_depth = 32;
-#endif
-
-
-#if defined(TARGET_ALPHA)
-#define QEMU_ARCH QEMU_ARCH_ALPHA
-#elif defined(TARGET_ARM)
-#define QEMU_ARCH QEMU_ARCH_ARM
-#elif defined(TARGET_CRIS)
-#define QEMU_ARCH QEMU_ARCH_CRIS
-#elif defined(TARGET_I386)
-#define QEMU_ARCH QEMU_ARCH_I386
-#elif defined(TARGET_M68K)
-#define QEMU_ARCH QEMU_ARCH_M68K
-#elif defined(TARGET_LM32)
-#define QEMU_ARCH QEMU_ARCH_LM32
-#elif defined(TARGET_MICROBLAZE)
-#define QEMU_ARCH QEMU_ARCH_MICROBLAZE
-#elif defined(TARGET_MIPS)
-#define QEMU_ARCH QEMU_ARCH_MIPS
-#elif defined(TARGET_MOXIE)
-#define QEMU_ARCH QEMU_ARCH_MOXIE
-#elif defined(TARGET_NIOS2)
-#define QEMU_ARCH QEMU_ARCH_NIOS2
-#elif defined(TARGET_OPENRISC)
-#define QEMU_ARCH QEMU_ARCH_OPENRISC
-#elif defined(TARGET_PPC)
-#define QEMU_ARCH QEMU_ARCH_PPC
-#elif defined(TARGET_S390X)
-#define QEMU_ARCH QEMU_ARCH_S390X
-#elif defined(TARGET_SH4)
-#define QEMU_ARCH QEMU_ARCH_SH4
-#elif defined(TARGET_SPARC)
-#define QEMU_ARCH QEMU_ARCH_SPARC
-#elif defined(TARGET_XTENSA)
-#define QEMU_ARCH QEMU_ARCH_XTENSA
-#elif defined(TARGET_UNICORE32)
-#define QEMU_ARCH QEMU_ARCH_UNICORE32
-#elif defined(TARGET_TRICORE)
-#define QEMU_ARCH QEMU_ARCH_TRICORE
-#endif
-
-const uint32_t arch_type = QEMU_ARCH;
-
-int kvm_available(void)
-{
-#ifdef CONFIG_KVM
-    return 1;
-#else
-    return 0;
-#endif
-}
-
-int xen_available(void)
-{
-#ifdef CONFIG_XEN
-    return 1;
-#else
-    return 0;
-#endif
-}
-
-
-TargetInfo *qmp_query_target(Error **errp)
-{
-    TargetInfo *info = g_malloc0(sizeof(*info));
-
-    info->arch = g_strdup(TARGET_NAME);
-
-    return info;
-}

arm-semi.c

@@ -0,0 +1,468 @@
+/*
+ *  Arm "Angel" semihosting syscalls
+ *
+ *  Copyright (c) 2005, 2007 CodeSourcery.
+ *  Written by Paul Brook.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+#include "cpu.h"
+#ifdef CONFIG_USER_ONLY
+#include "qemu.h"
+
+#define ARM_ANGEL_HEAP_SIZE (128 * 1024 * 1024)
+#else
+#include "qemu-common.h"
+#include "sysemu.h"
+#include "gdbstub.h"
+#endif
+
+#define SYS_OPEN        0x01
+#define SYS_CLOSE       0x02
+#define SYS_WRITEC      0x03
+#define SYS_WRITE0      0x04
+#define SYS_WRITE       0x05
+#define SYS_READ        0x06
+#define SYS_READC       0x07
+#define SYS_ISTTY       0x09
+#define SYS_SEEK        0x0a
+#define SYS_FLEN        0x0c
+#define SYS_TMPNAM      0x0d
+#define SYS_REMOVE      0x0e
+#define SYS_RENAME      0x0f
+#define SYS_CLOCK       0x10
+#define SYS_TIME        0x11
+#define SYS_SYSTEM      0x12
+#define SYS_ERRNO       0x13
+#define SYS_GET_CMDLINE 0x15
+#define SYS_HEAPINFO    0x16
+#define SYS_EXIT        0x18
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+#define GDB_O_RDONLY  0x000
+#define GDB_O_WRONLY  0x001
+#define GDB_O_RDWR    0x002
+#define GDB_O_APPEND  0x008
+#define GDB_O_CREAT   0x200
+#define GDB_O_TRUNC   0x400
+#define GDB_O_BINARY  0
+
+static int gdb_open_modeflags[12] = {
+    GDB_O_RDONLY,
+    GDB_O_RDONLY | GDB_O_BINARY,
+    GDB_O_RDWR,
+    GDB_O_RDWR | GDB_O_BINARY,
+    GDB_O_WRONLY | GDB_O_CREAT | GDB_O_TRUNC,
+    GDB_O_WRONLY | GDB_O_CREAT | GDB_O_TRUNC | GDB_O_BINARY,
+    GDB_O_RDWR | GDB_O_CREAT | GDB_O_TRUNC,
+    GDB_O_RDWR | GDB_O_CREAT | GDB_O_TRUNC | GDB_O_BINARY,
+    GDB_O_WRONLY | GDB_O_CREAT | GDB_O_APPEND,
+    GDB_O_WRONLY | GDB_O_CREAT | GDB_O_APPEND | GDB_O_BINARY,
+    GDB_O_RDWR | GDB_O_CREAT | GDB_O_APPEND,
+    GDB_O_RDWR | GDB_O_CREAT | GDB_O_APPEND | GDB_O_BINARY
+};
+
+static int open_modeflags[12] = {
+    O_RDONLY,
+    O_RDONLY | O_BINARY,
+    O_RDWR,
+    O_RDWR | O_BINARY,
+    O_WRONLY | O_CREAT | O_TRUNC,
+    O_WRONLY | O_CREAT | O_TRUNC | O_BINARY,
+    O_RDWR | O_CREAT | O_TRUNC,
+    O_RDWR | O_CREAT | O_TRUNC | O_BINARY,
+    O_WRONLY | O_CREAT | O_APPEND,
+    O_WRONLY | O_CREAT | O_APPEND | O_BINARY,
+    O_RDWR | O_CREAT | O_APPEND,
+    O_RDWR | O_CREAT | O_APPEND | O_BINARY
+};
+
+#ifdef CONFIG_USER_ONLY
+static inline uint32_t set_swi_errno(TaskState *ts, uint32_t code)
+{
+    if (code == (uint32_t)-1)
+        ts->swi_errno = errno;
+    return code;
+}
+#else
+static inline uint32_t set_swi_errno(CPUState *env, uint32_t code)
+{
+    return code;
+}
+
+#include "softmmu-semi.h"
+#endif
+
+static target_ulong arm_semi_syscall_len;
+
+#if !defined(CONFIG_USER_ONLY)
+static target_ulong syscall_err;
+#endif
+
+static void arm_semi_cb(CPUState *env, target_ulong ret, target_ulong err)
+{
+#ifdef CONFIG_USER_ONLY
+    TaskState *ts = env->opaque;
+#endif
+
+    if (ret == (target_ulong)-1) {
+#ifdef CONFIG_USER_ONLY
+        ts->swi_errno = err;
+#else
+	syscall_err = err;
+#endif
+        env->regs[0] = ret;
+    } else {
+        /* Fixup syscalls that use nonstardard return conventions.  */
+        switch (env->regs[0]) {
+        case SYS_WRITE:
+        case SYS_READ:
+            env->regs[0] = arm_semi_syscall_len - ret;
+            break;
+        case SYS_SEEK:
+            env->regs[0] = 0;
+            break;
+        default:
+            env->regs[0] = ret;
+            break;
+        }
+    }
+}
+
+static void arm_semi_flen_cb(CPUState *env, target_ulong ret, target_ulong err)
+{
+    /* The size is always stored in big-endian order, extract
+       the value. We assume the size always fit in 32 bits.  */
+    uint32_t size;
+    cpu_memory_rw_debug(env, env->regs[13]-64+32, (uint8_t *)&size, 4, 0);
+    env->regs[0] = be32_to_cpu(size);
+#ifdef CONFIG_USER_ONLY
+    ((TaskState *)env->opaque)->swi_errno = err;
+#else
+    syscall_err = err;
+#endif
+}
+
+#define ARG(n)					\
+({						\
+    target_ulong __arg;				\
+    /* FIXME - handle get_user() failure */	\
+    get_user_ual(__arg, args + (n) * 4);	\
+    __arg;					\
+})
+#define SET_ARG(n, val) put_user_ual(val, args + (n) * 4)
+uint32_t do_arm_semihosting(CPUState *env)
+{
+    target_ulong args;
+    char * s;
+    int nr;
+    uint32_t ret;
+    uint32_t len;
+#ifdef CONFIG_USER_ONLY
+    TaskState *ts = env->opaque;
+#else
+    CPUState *ts = env;
+#endif
+
+    nr = env->regs[0];
+    args = env->regs[1];
+    switch (nr) {
+    case SYS_OPEN:
+        if (!(s = lock_user_string(ARG(0))))
+            /* FIXME - should this error code be -TARGET_EFAULT ? */
+            return (uint32_t)-1;
+        if (ARG(1) >= 12)
+            return (uint32_t)-1;
+        if (strcmp(s, ":tt") == 0) {
+            if (ARG(1) < 4)
+                return STDIN_FILENO;
+            else
+                return STDOUT_FILENO;
+        }
+        if (use_gdb_syscalls()) {
+            gdb_do_syscall(arm_semi_cb, "open,%s,%x,1a4", ARG(0),
+			   (int)ARG(2)+1, gdb_open_modeflags[ARG(1)]);
+            return env->regs[0];
+        } else {
+            ret = set_swi_errno(ts, open(s, open_modeflags[ARG(1)], 0644));
+        }
+        unlock_user(s, ARG(0), 0);
+        return ret;
+    case SYS_CLOSE:
+        if (use_gdb_syscalls()) {
+            gdb_do_syscall(arm_semi_cb, "close,%x", ARG(0));
+            return env->regs[0];
+        } else {
+            return set_swi_errno(ts, close(ARG(0)));
+        }
+    case SYS_WRITEC:
+        {
+          char c;
+
+          if (get_user_u8(c, args))
+              /* FIXME - should this error code be -TARGET_EFAULT ? */
+              return (uint32_t)-1;
+          /* Write to debug console.  stderr is near enough.  */
+          if (use_gdb_syscalls()) {
+                gdb_do_syscall(arm_semi_cb, "write,2,%x,1", args);
+                return env->regs[0];
+          } else {
+                return write(STDERR_FILENO, &c, 1);
+          }
+        }
+    case SYS_WRITE0:
+        if (!(s = lock_user_string(args)))
+            /* FIXME - should this error code be -TARGET_EFAULT ? */
+            return (uint32_t)-1;
+        len = strlen(s);
+        if (use_gdb_syscalls()) {
+            gdb_do_syscall(arm_semi_cb, "write,2,%x,%x\n", args, len);
+            ret = env->regs[0];
+        } else {
+            ret = write(STDERR_FILENO, s, len);
+        }
+        unlock_user(s, args, 0);
+        return ret;
+    case SYS_WRITE:
+        len = ARG(2);
+        if (use_gdb_syscalls()) {
+            arm_semi_syscall_len = len;
+            gdb_do_syscall(arm_semi_cb, "write,%x,%x,%x", ARG(0), ARG(1), len);
+            return env->regs[0];
+        } else {
+            if (!(s = lock_user(VERIFY_READ, ARG(1), len, 1)))
+                /* FIXME - should this error code be -TARGET_EFAULT ? */
+                return (uint32_t)-1;
+            ret = set_swi_errno(ts, write(ARG(0), s, len));
+            unlock_user(s, ARG(1), 0);
+            if (ret == (uint32_t)-1)
+                return -1;
+            return len - ret;
+        }
+    case SYS_READ:
+        len = ARG(2);
+        if (use_gdb_syscalls()) {
+            arm_semi_syscall_len = len;
+            gdb_do_syscall(arm_semi_cb, "read,%x,%x,%x", ARG(0), ARG(1), len);
+            return env->regs[0];
+        } else {
+            if (!(s = lock_user(VERIFY_WRITE, ARG(1), len, 0)))
+                /* FIXME - should this error code be -TARGET_EFAULT ? */
+                return (uint32_t)-1;
+            do
+              ret = set_swi_errno(ts, read(ARG(0), s, len));
+            while (ret == -1 && errno == EINTR);
+            unlock_user(s, ARG(1), len);
+            if (ret == (uint32_t)-1)
+                return -1;
+            return len - ret;
+        }
+    case SYS_READC:
+       /* XXX: Read from debug cosole. Not implemented.  */
+        return 0;
+    case SYS_ISTTY:
+        if (use_gdb_syscalls()) {
+            gdb_do_syscall(arm_semi_cb, "isatty,%x", ARG(0));
+            return env->regs[0];
+        } else {
+            return isatty(ARG(0));
+        }
+    case SYS_SEEK:
+        if (use_gdb_syscalls()) {
+            gdb_do_syscall(arm_semi_cb, "lseek,%x,%x,0", ARG(0), ARG(1));
+            return env->regs[0];
+        } else {
+            ret = set_swi_errno(ts, lseek(ARG(0), ARG(1), SEEK_SET));
+            if (ret == (uint32_t)-1)
+              return -1;
+            return 0;
+        }
+    case SYS_FLEN:
+        if (use_gdb_syscalls()) {
+            gdb_do_syscall(arm_semi_flen_cb, "fstat,%x,%x",
+			   ARG(0), env->regs[13]-64);
+            return env->regs[0];
+        } else {
+            struct stat buf;
+            ret = set_swi_errno(ts, fstat(ARG(0), &buf));
+            if (ret == (uint32_t)-1)
+                return -1;
+            return buf.st_size;
+        }
+    case SYS_TMPNAM:
+        /* XXX: Not implemented.  */
+        return -1;
+    case SYS_REMOVE:
+        if (use_gdb_syscalls()) {
+            gdb_do_syscall(arm_semi_cb, "unlink,%s", ARG(0), (int)ARG(1)+1);
+            ret = env->regs[0];
+        } else {
+            if (!(s = lock_user_string(ARG(0))))
+                /* FIXME - should this error code be -TARGET_EFAULT ? */
+                return (uint32_t)-1;
+            ret =  set_swi_errno(ts, remove(s));
+            unlock_user(s, ARG(0), 0);
+        }
+        return ret;
+    case SYS_RENAME:
+        if (use_gdb_syscalls()) {
+            gdb_do_syscall(arm_semi_cb, "rename,%s,%s",
+                           ARG(0), (int)ARG(1)+1, ARG(2), (int)ARG(3)+1);
+            return env->regs[0];
+        } else {
+            char *s2;
+            s = lock_user_string(ARG(0));
+            s2 = lock_user_string(ARG(2));
+            if (!s || !s2)
+                /* FIXME - should this error code be -TARGET_EFAULT ? */
+                ret = (uint32_t)-1;
+            else
+                ret = set_swi_errno(ts, rename(s, s2));
+            if (s2)
+                unlock_user(s2, ARG(2), 0);
+            if (s)
+                unlock_user(s, ARG(0), 0);
+            return ret;
+        }
+    case SYS_CLOCK:
+        return clock() / (CLOCKS_PER_SEC / 100);
+    case SYS_TIME:
+        return set_swi_errno(ts, time(NULL));
+    case SYS_SYSTEM:
+        if (use_gdb_syscalls()) {
+            gdb_do_syscall(arm_semi_cb, "system,%s", ARG(0), (int)ARG(1)+1);
+            return env->regs[0];
+        } else {
+            if (!(s = lock_user_string(ARG(0))))
+                /* FIXME - should this error code be -TARGET_EFAULT ? */
+                return (uint32_t)-1;
+            ret = set_swi_errno(ts, system(s));
+            unlock_user(s, ARG(0), 0);
+            return ret;
+        }
+    case SYS_ERRNO:
+#ifdef CONFIG_USER_ONLY
+        return ts->swi_errno;
+#else
+        return syscall_err;
+#endif
+    case SYS_GET_CMDLINE:
+#ifdef CONFIG_USER_ONLY
+        /* Build a commandline from the original argv.  */
+        {
+            char **arg = ts->info->host_argv;
+            int len = ARG(1);
+            /* lock the buffer on the ARM side */
+            char *cmdline_buffer = (char*)lock_user(VERIFY_WRITE, ARG(0), len, 0);
+
+            if (!cmdline_buffer)
+                /* FIXME - should this error code be -TARGET_EFAULT ? */
+                return (uint32_t)-1;
+
+            s = cmdline_buffer;
+            while (*arg && len > 2) {
+                int n = strlen(*arg);
+
+                if (s != cmdline_buffer) {
+                    *(s++) = ' ';
+                    len--;
+                }
+                if (n >= len)
+                    n = len - 1;
+                memcpy(s, *arg, n);
+                s += n;
+                len -= n;
+                arg++;
+            }
+            /* Null terminate the string.  */
+            *s = 0;
+            len = s - cmdline_buffer;
+
+            /* Unlock the buffer on the ARM side.  */
+            unlock_user(cmdline_buffer, ARG(0), len);
+
+            /* Adjust the commandline length argument.  */
+            SET_ARG(1, len);
+
+            /* Return success if commandline fit into buffer.  */
+            return *arg ? -1 : 0;
+        }
+#else
+      return -1;
+#endif
+    case SYS_HEAPINFO:
+        {
+            uint32_t *ptr;
+            uint32_t limit;
+
+#ifdef CONFIG_USER_ONLY
+            /* Some C libraries assume the heap immediately follows .bss, so
+               allocate it using sbrk.  */
+            if (!ts->heap_limit) {
+                long ret;
+
+                ts->heap_base = do_brk(0);
+                limit = ts->heap_base + ARM_ANGEL_HEAP_SIZE;
+                /* Try a big heap, and reduce the size if that fails.  */
+                for (;;) {
+                    ret = do_brk(limit);
+                    if (ret != -1)
+                        break;
+                    limit = (ts->heap_base >> 1) + (limit >> 1);
+                }
+                ts->heap_limit = limit;
+            }
+
+            if (!(ptr = lock_user(VERIFY_WRITE, ARG(0), 16, 0)))
+                /* FIXME - should this error code be -TARGET_EFAULT ? */
+                return (uint32_t)-1;
+            ptr[0] = tswap32(ts->heap_base);
+            ptr[1] = tswap32(ts->heap_limit);
+            ptr[2] = tswap32(ts->stack_base);
+            ptr[3] = tswap32(0); /* Stack limit.  */
+            unlock_user(ptr, ARG(0), 16);
+#else
+            limit = ram_size;
+            if (!(ptr = lock_user(VERIFY_WRITE, ARG(0), 16, 0)))
+                /* FIXME - should this error code be -TARGET_EFAULT ? */
+                return (uint32_t)-1;
+            /* TODO: Make this use the limit of the loaded application.  */
+            ptr[0] = tswap32(limit / 2);
+            ptr[1] = tswap32(limit);
+            ptr[2] = tswap32(limit); /* Stack base */
+            ptr[3] = tswap32(0); /* Stack limit.  */
+            unlock_user(ptr, ARG(0), 16);
+#endif
+            return 0;
+        }
+    case SYS_EXIT:
+        exit(0);
+    default:
+        fprintf(stderr, "qemu: Unsupported SemiHosting SWI 0x%02x\n", nr);
+        cpu_dump_state(env, stderr, fprintf, 0);
+        abort();
+    }
+}

arm.ld

@@ -0,0 +1,153 @@
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm",
+	      "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = 0x60000000 + SIZEOF_HEADERS;
+  .interp     : { *(.interp) 	}
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .gnu.version   : { *(.gnu.version)	}
+  .gnu.version_d   : { *(.gnu.version_d)	}
+  .gnu.version_r   : { *(.gnu.version_r)	}
+  .rel.text      :
+    { *(.rel.text) *(.rel.gnu.linkonce.t*) }
+  .rela.text     :
+    { *(.rela.text) *(.rela.gnu.linkonce.t*) }
+  .rel.data      :
+    { *(.rel.data) *(.rel.gnu.linkonce.d*) }
+  .rela.data     :
+    { *(.rela.data) *(.rela.gnu.linkonce.d*) }
+  .rel.rodata    :
+    { *(.rel.rodata) *(.rel.gnu.linkonce.r*) }
+  .rela.rodata   :
+    { *(.rela.rodata) *(.rela.gnu.linkonce.r*) }
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.init      : { *(.rel.init)	}
+  .rela.init     : { *(.rela.init)	}
+  .rel.fini      : { *(.rel.fini)	}
+  .rela.fini     : { *(.rela.fini)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	} =0x47ff041f
+  .text      :
+  {
+    *(.text)
+    /* .gnu.warning sections are handled specially by elf32.em.  */
+    *(.gnu.warning)
+    *(.gnu.linkonce.t*)
+  } =0x47ff041f
+  _etext = .;
+  PROVIDE (etext = .);
+  .fini      : { *(.fini)    } =0x47ff041f
+  .rodata    : { *(.rodata) *(.gnu.linkonce.r*) }
+  .rodata1   : { *(.rodata1) }
+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) }
+   __exidx_start = .;
+  .ARM.exidx   : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) }
+   __exidx_end = .;
+  .reginfo : { *(.reginfo) }
+  /* Adjust the address for the data segment.  We want to adjust up to
+     the same address within the page on the next page up.  */
+  . = ALIGN(0x100000) + (. & (0x100000 - 1));
+  .data    :
+  {
+    *(.gen_code)
+    *(.data)
+    *(.gnu.linkonce.d*)
+    CONSTRUCTORS
+  }
+  .tbss           : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
+  .data1   : { *(.data1) }
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  }
+  .init_array     :
+  {
+     PROVIDE_HIDDEN (__init_array_start = .);
+     KEEP (*(SORT(.init_array.*)))
+     KEEP (*(.init_array))
+     PROVIDE_HIDDEN (__init_array_end = .);
+  }
+  .fini_array     :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(.fini_array))
+    KEEP (*(SORT(.fini_array.*)))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  }
+  .ctors         :
+  {
+    *(.ctors)
+  }
+  .dtors         :
+  {
+    *(.dtors)
+  }
+  .plt      : { *(.plt)	}
+  .got           : { *(.got.plt) *(.got) }
+  .dynamic       : { *(.dynamic) }
+  /* We want the small data sections together, so single-instruction offsets
+     can access them all, and initialized data all before uninitialized, so
+     we can shorten the on-disk segment size.  */
+  .sdata     : { *(.sdata) }
+  _edata  =  .;
+  PROVIDE (edata = .);
+  __bss_start = .;
+  .sbss      : { *(.sbss) *(.scommon) }
+  .bss       :
+  {
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+  /* Stabs debugging sections.  */
+  .stab 0 : { *(.stab) }
+  .stabstr 0 : { *(.stabstr) }
+  .stab.excl 0 : { *(.stab.excl) }
+  .stab.exclstr 0 : { *(.stab.exclstr) }
+  .stab.index 0 : { *(.stab.index) }
+  .stab.indexstr 0 : { *(.stab.indexstr) }
+  .comment 0 : { *(.comment) }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* These must appear regardless of  .  */
+}

async.c

@@ -0,0 +1,216 @@
+/*
+ * QEMU System Emulator
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu-common.h"
+#include "qemu-aio.h"
+
+/*
+ * An AsyncContext protects the callbacks of AIO requests and Bottom Halves
+ * against interfering with each other. A typical example is qcow2 that accepts
+ * asynchronous requests, but relies for manipulation of its metadata on
+ * synchronous bdrv_read/write that doesn't trigger any callbacks.
+ *
+ * However, these functions are often emulated using AIO which means that AIO
+ * callbacks must be run - but at the same time we must not run callbacks of
+ * other requests as they might start to modify metadata and corrupt the
+ * internal state of the caller of bdrv_read/write.
+ *
+ * To achieve the desired semantics we switch into a new AsyncContext.
+ * Callbacks must only be run if they belong to the current AsyncContext.
+ * Otherwise they need to be queued until their own context is active again.
+ * This is how you can make qemu_aio_wait() wait only for your own callbacks.
+ *
+ * The AsyncContexts form a stack. When you leave a AsyncContexts, you always
+ * return to the old ("parent") context.
+ */
+struct AsyncContext {
+    /* Consecutive number of the AsyncContext (position in the stack) */
+    int id;
+
+    /* Anchor of the list of Bottom Halves belonging to the context */
+    struct QEMUBH *first_bh;
+
+    /* Link to parent context */
+    struct AsyncContext *parent;
+};
+
+/* The currently active AsyncContext */
+static struct AsyncContext *async_context = &(struct AsyncContext) { 0 };
+
+/*
+ * Enter a new AsyncContext. Already scheduled Bottom Halves and AIO callbacks
+ * won't be called until this context is left again.
+ */
+void async_context_push(void)
+{
+    struct AsyncContext *new = qemu_mallocz(sizeof(*new));
+    new->parent = async_context;
+    new->id = async_context->id + 1;
+    async_context = new;
+}
+
+/* Run queued AIO completions and destroy Bottom Half */
+static void bh_run_aio_completions(void *opaque)
+{
+    QEMUBH **bh = opaque;
+    qemu_bh_delete(*bh);
+    qemu_free(bh);
+    qemu_aio_process_queue();
+}
+/*
+ * Leave the currently active AsyncContext. All Bottom Halves belonging to the
+ * old context are executed before changing the context.
+ */
+void async_context_pop(void)
+{
+    struct AsyncContext *old = async_context;
+    QEMUBH **bh;
+
+    /* Flush the bottom halves, we don't want to lose them */
+    while (qemu_bh_poll());
+
+    /* Switch back to the parent context */
+    async_context = async_context->parent;
+    qemu_free(old);
+
+    if (async_context == NULL) {
+        abort();
+    }
+
+    /* Schedule BH to run any queued AIO completions as soon as possible */
+    bh = qemu_malloc(sizeof(*bh));
+    *bh = qemu_bh_new(bh_run_aio_completions, bh);
+    qemu_bh_schedule(*bh);
+}
+
+/*
+ * Returns the ID of the currently active AsyncContext
+ */
+int get_async_context_id(void)
+{
+    return async_context->id;
+}
+
+/***********************************************************/
+/* bottom halves (can be seen as timers which expire ASAP) */
+
+struct QEMUBH {
+    QEMUBHFunc *cb;
+    void *opaque;
+    int scheduled;
+    int idle;
+    int deleted;
+    QEMUBH *next;
+};
+
+QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
+{
+    QEMUBH *bh;
+    bh = qemu_mallocz(sizeof(QEMUBH));
+    bh->cb = cb;
+    bh->opaque = opaque;
+    bh->next = async_context->first_bh;
+    async_context->first_bh = bh;
+    return bh;
+}
+
+int qemu_bh_poll(void)
+{
+    QEMUBH *bh, **bhp;
+    int ret;
+
+    ret = 0;
+    for (bh = async_context->first_bh; bh; bh = bh->next) {
+        if (!bh->deleted && bh->scheduled) {
+            bh->scheduled = 0;
+            if (!bh->idle)
+                ret = 1;
+            bh->idle = 0;
+            bh->cb(bh->opaque);
+        }
+    }
+
+    /* remove deleted bhs */
+    bhp = &async_context->first_bh;
+    while (*bhp) {
+        bh = *bhp;
+        if (bh->deleted) {
+            *bhp = bh->next;
+            qemu_free(bh);
+        } else
+            bhp = &bh->next;
+    }
+
+    return ret;
+}
+
+void qemu_bh_schedule_idle(QEMUBH *bh)
+{
+    if (bh->scheduled)
+        return;
+    bh->scheduled = 1;
+    bh->idle = 1;
+}
+
+void qemu_bh_schedule(QEMUBH *bh)
+{
+    if (bh->scheduled)
+        return;
+    bh->scheduled = 1;
+    bh->idle = 0;
+    /* stop the currently executing CPU to execute the BH ASAP */
+    qemu_notify_event();
+}
+
+void qemu_bh_cancel(QEMUBH *bh)
+{
+    bh->scheduled = 0;
+}
+
+void qemu_bh_delete(QEMUBH *bh)
+{
+    bh->scheduled = 0;
+    bh->deleted = 1;
+}
+
+void qemu_bh_update_timeout(int *timeout)
+{
+    QEMUBH *bh;
+
+    for (bh = async_context->first_bh; bh; bh = bh->next) {
+        if (!bh->deleted && bh->scheduled) {
+            if (bh->idle) {
+                /* idle bottom halves will be polled at least
+                 * every 10ms */
+                *timeout = MIN(10, *timeout);
+            } else {
+                /* non-idle bottom halves will be executed
+                 * immediately */
+                *timeout = 0;
+                break;
+            }
+        }
+    }
+}
+

atomic_template.h

@@ -1,215 +0,0 @@
-/*
- * Atomic helper templates
- * Included from tcg-runtime.c and cputlb.c.
- *
- * Copyright (c) 2016 Red Hat, Inc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#if DATA_SIZE == 16
-# define SUFFIX     o
-# define DATA_TYPE  Int128
-# define BSWAP      bswap128
-#elif DATA_SIZE == 8
-# define SUFFIX     q
-# define DATA_TYPE  uint64_t
-# define BSWAP      bswap64
-#elif DATA_SIZE == 4
-# define SUFFIX     l
-# define DATA_TYPE  uint32_t
-# define BSWAP      bswap32
-#elif DATA_SIZE == 2
-# define SUFFIX     w
-# define DATA_TYPE  uint16_t
-# define BSWAP      bswap16
-#elif DATA_SIZE == 1
-# define SUFFIX     b
-# define DATA_TYPE  uint8_t
-# define BSWAP
-#else
-# error unsupported data size
-#endif
-
-#if DATA_SIZE >= 4
-# define ABI_TYPE  DATA_TYPE
-#else
-# define ABI_TYPE  uint32_t
-#endif
-
-/* Define host-endian atomic operations.  Note that END is used within
-   the ATOMIC_NAME macro, and redefined below.  */
-#if DATA_SIZE == 1
-# define END
-#elif defined(HOST_WORDS_BIGENDIAN)
-# define END  _be
-#else
-# define END  _le
-#endif
-
-ABI_TYPE ATOMIC_NAME(cmpxchg)(CPUArchState *env, target_ulong addr,
-                              ABI_TYPE cmpv, ABI_TYPE newv EXTRA_ARGS)
-{
-    DATA_TYPE *haddr = ATOMIC_MMU_LOOKUP;
-    return atomic_cmpxchg__nocheck(haddr, cmpv, newv);
-}
-
-#if DATA_SIZE >= 16
-ABI_TYPE ATOMIC_NAME(ld)(CPUArchState *env, target_ulong addr EXTRA_ARGS)
-{
-    DATA_TYPE val, *haddr = ATOMIC_MMU_LOOKUP;
-    __atomic_load(haddr, &val, __ATOMIC_RELAXED);
-    return val;
-}
-
-void ATOMIC_NAME(st)(CPUArchState *env, target_ulong addr,
-                     ABI_TYPE val EXTRA_ARGS)
-{
-    DATA_TYPE *haddr = ATOMIC_MMU_LOOKUP;
-    __atomic_store(haddr, &val, __ATOMIC_RELAXED);
-}
-#else
-ABI_TYPE ATOMIC_NAME(xchg)(CPUArchState *env, target_ulong addr,
-                           ABI_TYPE val EXTRA_ARGS)
-{
-    DATA_TYPE *haddr = ATOMIC_MMU_LOOKUP;
-    return atomic_xchg__nocheck(haddr, val);
-}
-
-#define GEN_ATOMIC_HELPER(X)                                        \
-ABI_TYPE ATOMIC_NAME(X)(CPUArchState *env, target_ulong addr,       \
-                 ABI_TYPE val EXTRA_ARGS)                           \
-{                                                                   \
-    DATA_TYPE *haddr = ATOMIC_MMU_LOOKUP;                           \
-    return atomic_##X(haddr, val);                                  \
-}                                                                   \
-
-GEN_ATOMIC_HELPER(fetch_add)
-GEN_ATOMIC_HELPER(fetch_and)
-GEN_ATOMIC_HELPER(fetch_or)
-GEN_ATOMIC_HELPER(fetch_xor)
-GEN_ATOMIC_HELPER(add_fetch)
-GEN_ATOMIC_HELPER(and_fetch)
-GEN_ATOMIC_HELPER(or_fetch)
-GEN_ATOMIC_HELPER(xor_fetch)
-
-#undef GEN_ATOMIC_HELPER
-#endif /* DATA SIZE >= 16 */
-
-#undef END
-
-#if DATA_SIZE > 1
-
-/* Define reverse-host-endian atomic operations.  Note that END is used
-   within the ATOMIC_NAME macro.  */
-#ifdef HOST_WORDS_BIGENDIAN
-# define END  _le
-#else
-# define END  _be
-#endif
-
-ABI_TYPE ATOMIC_NAME(cmpxchg)(CPUArchState *env, target_ulong addr,
-                              ABI_TYPE cmpv, ABI_TYPE newv EXTRA_ARGS)
-{
-    DATA_TYPE *haddr = ATOMIC_MMU_LOOKUP;
-    return BSWAP(atomic_cmpxchg__nocheck(haddr, BSWAP(cmpv), BSWAP(newv)));
-}
-
-#if DATA_SIZE >= 16
-ABI_TYPE ATOMIC_NAME(ld)(CPUArchState *env, target_ulong addr EXTRA_ARGS)
-{
-    DATA_TYPE val, *haddr = ATOMIC_MMU_LOOKUP;
-    __atomic_load(haddr, &val, __ATOMIC_RELAXED);
-    return BSWAP(val);
-}
-
-void ATOMIC_NAME(st)(CPUArchState *env, target_ulong addr,
-                     ABI_TYPE val EXTRA_ARGS)
-{
-    DATA_TYPE *haddr = ATOMIC_MMU_LOOKUP;
-    val = BSWAP(val);
-    __atomic_store(haddr, &val, __ATOMIC_RELAXED);
-}
-#else
-ABI_TYPE ATOMIC_NAME(xchg)(CPUArchState *env, target_ulong addr,
-                           ABI_TYPE val EXTRA_ARGS)
-{
-    DATA_TYPE *haddr = ATOMIC_MMU_LOOKUP;
-    return BSWAP(atomic_xchg__nocheck(haddr, BSWAP(val)));
-}
-
-#define GEN_ATOMIC_HELPER(X)                                        \
-ABI_TYPE ATOMIC_NAME(X)(CPUArchState *env, target_ulong addr,       \
-                 ABI_TYPE val EXTRA_ARGS)                           \
-{                                                                   \
-    DATA_TYPE *haddr = ATOMIC_MMU_LOOKUP;                           \
-    return BSWAP(atomic_##X(haddr, BSWAP(val)));                    \
-}
-
-GEN_ATOMIC_HELPER(fetch_and)
-GEN_ATOMIC_HELPER(fetch_or)
-GEN_ATOMIC_HELPER(fetch_xor)
-GEN_ATOMIC_HELPER(and_fetch)
-GEN_ATOMIC_HELPER(or_fetch)
-GEN_ATOMIC_HELPER(xor_fetch)
-
-#undef GEN_ATOMIC_HELPER
-
-/* Note that for addition, we need to use a separate cmpxchg loop instead
-   of bswaps for the reverse-host-endian helpers.  */
-ABI_TYPE ATOMIC_NAME(fetch_add)(CPUArchState *env, target_ulong addr,
-                         ABI_TYPE val EXTRA_ARGS)
-{
-    DATA_TYPE *haddr = ATOMIC_MMU_LOOKUP;
-    DATA_TYPE ldo, ldn, ret, sto;
-
-    ldo = atomic_read__nocheck(haddr);
-    while (1) {
-        ret = BSWAP(ldo);
-        sto = BSWAP(ret + val);
-        ldn = atomic_cmpxchg__nocheck(haddr, ldo, sto);
-        if (ldn == ldo) {
-            return ret;
-        }
-        ldo = ldn;
-    }
-}
-
-ABI_TYPE ATOMIC_NAME(add_fetch)(CPUArchState *env, target_ulong addr,
-                         ABI_TYPE val EXTRA_ARGS)
-{
-    DATA_TYPE *haddr = ATOMIC_MMU_LOOKUP;
-    DATA_TYPE ldo, ldn, ret, sto;
-
-    ldo = atomic_read__nocheck(haddr);
-    while (1) {
-        ret = BSWAP(ldo) + val;
-        sto = BSWAP(ret);
-        ldn = atomic_cmpxchg__nocheck(haddr, ldo, sto);
-        if (ldn == ldo) {
-            return ret;
-        }
-        ldo = ldn;
-    }
-}
-#endif /* DATA_SIZE >= 16 */
-
-#undef END
-#endif /* DATA_SIZE > 1 */
-
-#undef BSWAP
-#undef ABI_TYPE
-#undef DATA_TYPE
-#undef SUFFIX
-#undef DATA_SIZE

audio/Makefile.objs

@@ -1,13 +0,0 @@
-common-obj-y = audio.o noaudio.o wavaudio.o mixeng.o
-common-obj-$(CONFIG_SDL) += sdlaudio.o
-common-obj-$(CONFIG_OSS) += ossaudio.o
-common-obj-$(CONFIG_SPICE) += spiceaudio.o
-common-obj-$(CONFIG_COREAUDIO) += coreaudio.o
-common-obj-$(CONFIG_ALSA) += alsaaudio.o
-common-obj-$(CONFIG_DSOUND) += dsoundaudio.o
-common-obj-$(CONFIG_PA) += paaudio.o
-common-obj-$(CONFIG_AUDIO_PT_INT) += audio_pt_int.o
-common-obj-$(CONFIG_AUDIO_WIN_INT) += audio_win_int.o
-common-obj-y += wavcapture.o
-
-sdlaudio.o-cflags := $(SDL_CFLAGS)

audio/alsaaudio.c

@@ -21,12 +21,10 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "qemu/osdep.h"
 #include <alsa/asoundlib.h>
 #include "qemu-common.h"
-#include "qemu/main-loop.h"
+#include "qemu-char.h"
 #include "audio.h"
-#include "trace.h"
 
 #if QEMU_GNUC_PREREQ(4, 3)
 #pragma GCC diagnostic ignored "-Waddress"
@@ -35,28 +33,9 @@
 #define AUDIO_CAP "alsa"
 #include "audio_int.h"
 
-typedef struct ALSAConf {
-    int size_in_usec_in;
-    int size_in_usec_out;
-    const char *pcm_name_in;
-    const char *pcm_name_out;
-    unsigned int buffer_size_in;
-    unsigned int period_size_in;
-    unsigned int buffer_size_out;
-    unsigned int period_size_out;
-    unsigned int threshold;
-
-    int buffer_size_in_overridden;
-    int period_size_in_overridden;
-
-    int buffer_size_out_overridden;
-    int period_size_out_overridden;
-} ALSAConf;
-
 struct pollhlp {
     snd_pcm_t *handle;
     struct pollfd *pfds;
-    ALSAConf *conf;
     int count;
     int mask;
 };
@@ -77,6 +56,30 @@ typedef struct ALSAVoiceIn {
     struct pollhlp pollhlp;
 } ALSAVoiceIn;
 
+static struct {
+    int size_in_usec_in;
+    int size_in_usec_out;
+    const char *pcm_name_in;
+    const char *pcm_name_out;
+    unsigned int buffer_size_in;
+    unsigned int period_size_in;
+    unsigned int buffer_size_out;
+    unsigned int period_size_out;
+    unsigned int threshold;
+
+    int buffer_size_in_overridden;
+    int period_size_in_overridden;
+
+    int buffer_size_out_overridden;
+    int period_size_out_overridden;
+    int verbose;
+} conf = {
+    .buffer_size_out = 4096,
+    .period_size_out = 1024,
+    .pcm_name_out = "default",
+    .pcm_name_in = "default",
+};
+
 struct alsa_params_req {
     int freq;
     snd_pcm_format_t fmt;
@@ -133,7 +136,7 @@ static void alsa_fini_poll (struct pollhlp *hlp)
         for (i = 0; i < hlp->count; ++i) {
             qemu_set_fd_handler (pfds[i].fd, NULL, NULL, NULL);
         }
-        g_free (pfds);
+        qemu_free (pfds);
     }
     hlp->pfds = NULL;
     hlp->count = 0;
@@ -202,16 +205,14 @@ static void alsa_poll_handler (void *opaque)
     }
 
     if (!(revents & hlp->mask)) {
-        trace_alsa_revents(revents);
+        if (conf.verbose) {
+            dolog ("revents = %d\n", revents);
+        }
         return;
     }
 
     state = snd_pcm_state (hlp->handle);
     switch (state) {
-    case SND_PCM_STATE_SETUP:
-        alsa_recover (hlp->handle);
-        break;
-
     case SND_PCM_STATE_XRUN:
         alsa_recover (hlp->handle);
         break;
@@ -255,20 +256,37 @@ static int alsa_poll_helper (snd_pcm_t *handle, struct pollhlp *hlp, int mask)
     if (err < 0) {
         alsa_logerr (err, "Could not initialize poll mode\n"
                      "Could not obtain poll descriptors\n");
-        g_free (pfds);
+        qemu_free (pfds);
         return -1;
     }
 
     for (i = 0; i < count; ++i) {
         if (pfds[i].events & POLLIN) {
-            qemu_set_fd_handler (pfds[i].fd, alsa_poll_handler, NULL, hlp);
+            err = qemu_set_fd_handler (pfds[i].fd, alsa_poll_handler,
+                                       NULL, hlp);
         }
         if (pfds[i].events & POLLOUT) {
-            trace_alsa_pollout(i, pfds[i].fd);
-            qemu_set_fd_handler (pfds[i].fd, NULL, alsa_poll_handler, hlp);
+            if (conf.verbose) {
+                dolog ("POLLOUT %d %d\n", i, pfds[i].fd);
+            }
+            err = qemu_set_fd_handler (pfds[i].fd, NULL,
+                                       alsa_poll_handler, hlp);
+        }
+        if (conf.verbose) {
+            dolog ("Set handler events=%#x index=%d fd=%d err=%d\n",
+                   pfds[i].events, i, pfds[i].fd, err);
         }
-        trace_alsa_set_handler(pfds[i].events, i, pfds[i].fd, err);
 
+        if (err) {
+            dolog ("Failed to set handler events=%#x index=%d fd=%d err=%d\n",
+                   pfds[i].events, i, pfds[i].fd, err);
+
+            while (i--) {
+                qemu_set_fd_handler (pfds[i].fd, NULL, NULL, NULL);
+            }
+            qemu_free (pfds);
+            return -1;
+        }
     }
     hlp->pfds = pfds;
     hlp->count = count;
@@ -296,7 +314,7 @@ static int alsa_write (SWVoiceOut *sw, void *buf, int len)
     return audio_pcm_sw_write (sw, buf, len);
 }
 
-static snd_pcm_format_t aud_to_alsafmt (audfmt_e fmt, int endianness)
+static snd_pcm_format_t aud_to_alsafmt (audfmt_e fmt)
 {
     switch (fmt) {
     case AUD_FMT_S8:
@@ -306,36 +324,16 @@ static snd_pcm_format_t aud_to_alsafmt (audfmt_e fmt, int endianness)
         return SND_PCM_FORMAT_U8;
 
     case AUD_FMT_S16:
-        if (endianness) {
-            return SND_PCM_FORMAT_S16_BE;
-        }
-        else {
-            return SND_PCM_FORMAT_S16_LE;
-        }
+        return SND_PCM_FORMAT_S16_LE;
 
     case AUD_FMT_U16:
-        if (endianness) {
-            return SND_PCM_FORMAT_U16_BE;
-        }
-        else {
-            return SND_PCM_FORMAT_U16_LE;
-        }
+        return SND_PCM_FORMAT_U16_LE;
 
     case AUD_FMT_S32:
-        if (endianness) {
-            return SND_PCM_FORMAT_S32_BE;
-        }
-        else {
-            return SND_PCM_FORMAT_S32_LE;
-        }
+        return SND_PCM_FORMAT_S32_LE;
 
     case AUD_FMT_U32:
-        if (endianness) {
-            return SND_PCM_FORMAT_U32_BE;
-        }
-        else {
-            return SND_PCM_FORMAT_U32_LE;
-        }
+        return SND_PCM_FORMAT_U32_LE;
 
     default:
         dolog ("Internal logic error: Bad audio format %d\n", fmt);
@@ -409,11 +407,10 @@ static int alsa_to_audfmt (snd_pcm_format_t alsafmt, audfmt_e *fmt,
 }
 
 static void alsa_dump_info (struct alsa_params_req *req,
-                            struct alsa_params_obt *obt,
-                            snd_pcm_format_t obtfmt)
+                            struct alsa_params_obt *obt)
 {
     dolog ("parameter | requested value | obtained value\n");
-    dolog ("format    |      %10d |     %10d\n", req->fmt, obtfmt);
+    dolog ("format    |      %10d |     %10d\n", req->fmt, obt->fmt);
     dolog ("channels  |      %10d |     %10d\n",
            req->nchannels, obt->nchannels);
     dolog ("frequency |      %10d |     %10d\n", req->freq, obt->freq);
@@ -454,15 +451,14 @@ static void alsa_set_threshold (snd_pcm_t *handle, snd_pcm_uframes_t threshold)
 }
 
 static int alsa_open (int in, struct alsa_params_req *req,
-                      struct alsa_params_obt *obt, snd_pcm_t **handlep,
-                      ALSAConf *conf)
+                      struct alsa_params_obt *obt, snd_pcm_t **handlep)
 {
     snd_pcm_t *handle;
     snd_pcm_hw_params_t *hw_params;
     int err;
     int size_in_usec;
     unsigned int freq, nchannels;
-    const char *pcm_name = in ? conf->pcm_name_in : conf->pcm_name_out;
+    const char *pcm_name = in ? conf.pcm_name_in : conf.pcm_name_out;
     snd_pcm_uframes_t obt_buffer_size;
     const char *typ = in ? "ADC" : "DAC";
     snd_pcm_format_t obtfmt;
@@ -501,7 +497,7 @@ static int alsa_open (int in, struct alsa_params_req *req,
     }
 
     err = snd_pcm_hw_params_set_format (handle, hw_params, req->fmt);
-    if (err < 0) {
+    if (err < 0 && conf.verbose) {
         alsa_logerr2 (err, typ, "Failed to set format %d\n", req->fmt);
     }
 
@@ -633,7 +629,7 @@ static int alsa_open (int in, struct alsa_params_req *req,
         goto err;
     }
 
-    if (!in && conf->threshold) {
+    if (!in && conf.threshold) {
         snd_pcm_uframes_t threshold;
         int bytes_per_sec;
 
@@ -655,7 +651,7 @@ static int alsa_open (int in, struct alsa_params_req *req,
             break;
         }
 
-        threshold = (conf->threshold * bytes_per_sec) / 1000;
+        threshold = (conf.threshold * bytes_per_sec) / 1000;
         alsa_set_threshold (handle, threshold);
     }
 
@@ -665,15 +661,16 @@ static int alsa_open (int in, struct alsa_params_req *req,
 
     *handlep = handle;
 
-    if (obtfmt != req->fmt ||
+    if (conf.verbose &&
+        (obt->fmt != req->fmt ||
          obt->nchannels != req->nchannels ||
-         obt->freq != req->freq) {
-        dolog ("Audio parameters for %s\n", typ);
-        alsa_dump_info (req, obt, obtfmt);
+         obt->freq != req->freq)) {
+        dolog ("Audio paramters for %s\n", typ);
+        alsa_dump_info (req, obt);
     }
 
 #ifdef DEBUG
-    alsa_dump_info (req, obt, obtfmt);
+    alsa_dump_info (req, obt);
 #endif
     return 0;
 
@@ -721,7 +718,9 @@ static void alsa_write_pending (ALSAVoiceOut *alsa)
             if (written <= 0) {
                 switch (written) {
                 case 0:
-                    trace_alsa_wrote_zero(len);
+                    if (conf.verbose) {
+                        dolog ("Failed to write %d frames (wrote zero)\n", len);
+                    }
                     return;
 
                 case -EPIPE:
@@ -730,7 +729,9 @@ static void alsa_write_pending (ALSAVoiceOut *alsa)
                                      len);
                         return;
                     }
-                    trace_alsa_xrun_out();
+                    if (conf.verbose) {
+                        dolog ("Recovering from playback xrun\n");
+                    }
                     continue;
 
                 case -ESTRPIPE:
@@ -741,7 +742,9 @@ static void alsa_write_pending (ALSAVoiceOut *alsa)
                                      len);
                         return;
                     }
-                    trace_alsa_resume_out();
+                    if (conf.verbose) {
+                        dolog ("Resuming suspended output stream\n");
+                    }
                     continue;
 
                 case -EAGAIN:
@@ -787,31 +790,31 @@ static void alsa_fini_out (HWVoiceOut *hw)
     ldebug ("alsa_fini\n");
     alsa_anal_close (&alsa->handle, &alsa->pollhlp);
 
-    g_free(alsa->pcm_buf);
-    alsa->pcm_buf = NULL;
+    if (alsa->pcm_buf) {
+        qemu_free (alsa->pcm_buf);
+        alsa->pcm_buf = NULL;
+    }
 }
 
-static int alsa_init_out(HWVoiceOut *hw, struct audsettings *as,
-                         void *drv_opaque)
+static int alsa_init_out (HWVoiceOut *hw, struct audsettings *as)
 {
     ALSAVoiceOut *alsa = (ALSAVoiceOut *) hw;
     struct alsa_params_req req;
     struct alsa_params_obt obt;
     snd_pcm_t *handle;
     struct audsettings obt_as;
-    ALSAConf *conf = drv_opaque;
 
-    req.fmt = aud_to_alsafmt (as->fmt, as->endianness);
+    req.fmt = aud_to_alsafmt (as->fmt);
     req.freq = as->freq;
     req.nchannels = as->nchannels;
-    req.period_size = conf->period_size_out;
-    req.buffer_size = conf->buffer_size_out;
-    req.size_in_usec = conf->size_in_usec_out;
+    req.period_size = conf.period_size_out;
+    req.buffer_size = conf.buffer_size_out;
+    req.size_in_usec = conf.size_in_usec_out;
     req.override_mask =
-        (conf->period_size_out_overridden ? 1 : 0) |
-        (conf->buffer_size_out_overridden ? 2 : 0);
+        (conf.period_size_out_overridden ? 1 : 0) |
+        (conf.buffer_size_out_overridden ? 2 : 0);
 
-    if (alsa_open (0, &req, &obt, &handle, conf)) {
+    if (alsa_open (0, &req, &obt, &handle)) {
         return -1;
     }
 
@@ -832,19 +835,14 @@ static int alsa_init_out(HWVoiceOut *hw, struct audsettings *as,
     }
 
     alsa->handle = handle;
-    alsa->pollhlp.conf = conf;
     return 0;
 }
 
-#define VOICE_CTL_PAUSE 0
-#define VOICE_CTL_PREPARE 1
-#define VOICE_CTL_START 2
-
-static int alsa_voice_ctl (snd_pcm_t *handle, const char *typ, int ctl)
+static int alsa_voice_ctl (snd_pcm_t *handle, const char *typ, int pause)
 {
     int err;
 
-    if (ctl == VOICE_CTL_PAUSE) {
+    if (pause) {
         err = snd_pcm_drop (handle);
         if (err < 0) {
             alsa_logerr (err, "Could not stop %s\n", typ);
@@ -857,13 +855,6 @@ static int alsa_voice_ctl (snd_pcm_t *handle, const char *typ, int ctl)
             alsa_logerr (err, "Could not prepare handle for %s\n", typ);
             return -1;
         }
-        if (ctl == VOICE_CTL_START) {
-            err = snd_pcm_start(handle);
-            if (err < 0) {
-                alsa_logerr (err, "Could not start handle for %s\n", typ);
-                return -1;
-            }
-        }
     }
 
     return 0;
@@ -888,41 +879,36 @@ static int alsa_ctl_out (HWVoiceOut *hw, int cmd, ...)
                 poll_mode = 0;
             }
             hw->poll_mode = poll_mode;
-            return alsa_voice_ctl (alsa->handle, "playback", VOICE_CTL_PREPARE);
+            return alsa_voice_ctl (alsa->handle, "playback", 0);
         }
 
     case VOICE_DISABLE:
         ldebug ("disabling voice\n");
-        if (hw->poll_mode) {
-            hw->poll_mode = 0;
-            alsa_fini_poll (&alsa->pollhlp);
-        }
-        return alsa_voice_ctl (alsa->handle, "playback", VOICE_CTL_PAUSE);
+        return alsa_voice_ctl (alsa->handle, "playback", 1);
     }
 
     return -1;
 }
 
-static int alsa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
+static int alsa_init_in (HWVoiceIn *hw, struct audsettings *as)
 {
     ALSAVoiceIn *alsa = (ALSAVoiceIn *) hw;
     struct alsa_params_req req;
     struct alsa_params_obt obt;
     snd_pcm_t *handle;
     struct audsettings obt_as;
-    ALSAConf *conf = drv_opaque;
 
-    req.fmt = aud_to_alsafmt (as->fmt, as->endianness);
+    req.fmt = aud_to_alsafmt (as->fmt);
     req.freq = as->freq;
     req.nchannels = as->nchannels;
-    req.period_size = conf->period_size_in;
-    req.buffer_size = conf->buffer_size_in;
-    req.size_in_usec = conf->size_in_usec_in;
+    req.period_size = conf.period_size_in;
+    req.buffer_size = conf.buffer_size_in;
+    req.size_in_usec = conf.size_in_usec_in;
     req.override_mask =
-        (conf->period_size_in_overridden ? 1 : 0) |
-        (conf->buffer_size_in_overridden ? 2 : 0);
+        (conf.period_size_in_overridden ? 1 : 0) |
+        (conf.buffer_size_in_overridden ? 2 : 0);
 
-    if (alsa_open (1, &req, &obt, &handle, conf)) {
+    if (alsa_open (1, &req, &obt, &handle)) {
         return -1;
     }
 
@@ -943,7 +929,6 @@ static int alsa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
     }
 
     alsa->handle = handle;
-    alsa->pollhlp.conf = conf;
     return 0;
 }
 
@@ -953,8 +938,10 @@ static void alsa_fini_in (HWVoiceIn *hw)
 
     alsa_anal_close (&alsa->handle, &alsa->pollhlp);
 
-    g_free(alsa->pcm_buf);
-    alsa->pcm_buf = NULL;
+    if (alsa->pcm_buf) {
+        qemu_free (alsa->pcm_buf);
+        alsa->pcm_buf = NULL;
+    }
 }
 
 static int alsa_run_in (HWVoiceIn *hw)
@@ -999,10 +986,14 @@ static int alsa_run_in (HWVoiceIn *hw)
                 dolog ("Failed to resume suspended input stream\n");
                 return 0;
             }
-            trace_alsa_resume_in();
+            if (conf.verbose) {
+                dolog ("Resuming suspended input stream\n");
+            }
             break;
         default:
-            trace_alsa_no_frames(state);
+            if (conf.verbose) {
+                dolog ("No frames available and ALSA state is %d\n", state);
+            }
             return 0;
         }
     }
@@ -1037,7 +1028,9 @@ static int alsa_run_in (HWVoiceIn *hw)
             if (nread <= 0) {
                 switch (nread) {
                 case 0:
-                    trace_alsa_read_zero(len);
+                    if (conf.verbose) {
+                        dolog ("Failed to read %ld frames (read zero)\n", len);
+                    }
                     goto exit;
 
                 case -EPIPE:
@@ -1045,7 +1038,9 @@ static int alsa_run_in (HWVoiceIn *hw)
                         alsa_logerr (nread, "Failed to read %ld frames\n", len);
                         goto exit;
                     }
-                    trace_alsa_xrun_in();
+                    if (conf.verbose) {
+                        dolog ("Recovering from capture xrun\n");
+                    }
                     continue;
 
                 case -EAGAIN:
@@ -1062,7 +1057,7 @@ static int alsa_run_in (HWVoiceIn *hw)
                 }
             }
 
-            hw->conv (dst, src, nread);
+            hw->conv (dst, src, nread, &nominal_volume);
 
             src = advance (src, nread << hwshift);
             dst += nread;
@@ -1102,7 +1097,7 @@ static int alsa_ctl_in (HWVoiceIn *hw, int cmd, ...)
             }
             hw->poll_mode = poll_mode;
 
-            return alsa_voice_ctl (alsa->handle, "capture", VOICE_CTL_START);
+            return alsa_voice_ctl (alsa->handle, "capture", 0);
         }
 
     case VOICE_DISABLE:
@@ -1111,91 +1106,88 @@ static int alsa_ctl_in (HWVoiceIn *hw, int cmd, ...)
             hw->poll_mode = 0;
             alsa_fini_poll (&alsa->pollhlp);
         }
-        return alsa_voice_ctl (alsa->handle, "capture", VOICE_CTL_PAUSE);
+        return alsa_voice_ctl (alsa->handle, "capture", 1);
     }
 
     return -1;
 }
 
-static ALSAConf glob_conf = {
-    .buffer_size_out = 4096,
-    .period_size_out = 1024,
-    .pcm_name_out = "default",
-    .pcm_name_in = "default",
-};
-
 static void *alsa_audio_init (void)
 {
-    ALSAConf *conf = g_malloc(sizeof(ALSAConf));
-    *conf = glob_conf;
-    return conf;
+    return &conf;
 }
 
 static void alsa_audio_fini (void *opaque)
 {
-    g_free(opaque);
+    (void) opaque;
 }
 
 static struct audio_option alsa_options[] = {
     {
         .name        = "DAC_SIZE_IN_USEC",
         .tag         = AUD_OPT_BOOL,
-        .valp        = &glob_conf.size_in_usec_out,
+        .valp        = &conf.size_in_usec_out,
         .descr       = "DAC period/buffer size in microseconds (otherwise in frames)"
     },
     {
         .name        = "DAC_PERIOD_SIZE",
         .tag         = AUD_OPT_INT,
-        .valp        = &glob_conf.period_size_out,
+        .valp        = &conf.period_size_out,
         .descr       = "DAC period size (0 to go with system default)",
-        .overriddenp = &glob_conf.period_size_out_overridden
+        .overriddenp = &conf.period_size_out_overridden
     },
     {
         .name        = "DAC_BUFFER_SIZE",
         .tag         = AUD_OPT_INT,
-        .valp        = &glob_conf.buffer_size_out,
+        .valp        = &conf.buffer_size_out,
         .descr       = "DAC buffer size (0 to go with system default)",
-        .overriddenp = &glob_conf.buffer_size_out_overridden
+        .overriddenp = &conf.buffer_size_out_overridden
     },
     {
         .name        = "ADC_SIZE_IN_USEC",
         .tag         = AUD_OPT_BOOL,
-        .valp        = &glob_conf.size_in_usec_in,
+        .valp        = &conf.size_in_usec_in,
         .descr       =
         "ADC period/buffer size in microseconds (otherwise in frames)"
     },
     {
         .name        = "ADC_PERIOD_SIZE",
         .tag         = AUD_OPT_INT,
-        .valp        = &glob_conf.period_size_in,
+        .valp        = &conf.period_size_in,
         .descr       = "ADC period size (0 to go with system default)",
-        .overriddenp = &glob_conf.period_size_in_overridden
+        .overriddenp = &conf.period_size_in_overridden
     },
     {
         .name        = "ADC_BUFFER_SIZE",
         .tag         = AUD_OPT_INT,
-        .valp        = &glob_conf.buffer_size_in,
+        .valp        = &conf.buffer_size_in,
         .descr       = "ADC buffer size (0 to go with system default)",
-        .overriddenp = &glob_conf.buffer_size_in_overridden
+        .overriddenp = &conf.buffer_size_in_overridden
     },
     {
         .name        = "THRESHOLD",
         .tag         = AUD_OPT_INT,
-        .valp        = &glob_conf.threshold,
+        .valp        = &conf.threshold,
         .descr       = "(undocumented)"
     },
     {
         .name        = "DAC_DEV",
         .tag         = AUD_OPT_STR,
-        .valp        = &glob_conf.pcm_name_out,
+        .valp        = &conf.pcm_name_out,
         .descr       = "DAC device name (for instance dmix)"
     },
     {
         .name        = "ADC_DEV",
         .tag         = AUD_OPT_STR,
-        .valp        = &glob_conf.pcm_name_in,
+        .valp        = &conf.pcm_name_in,
         .descr       = "ADC device name"
     },
+    {
+        .name        = "VERBOSE",
+        .tag         = AUD_OPT_BOOL,
+        .valp        = &conf.verbose,
+        .descr       = "Behave in a more verbose way"
+    },
     { /* End of list */ }
 };
 

audio/audio.c

@@ -21,18 +21,16 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "qemu/osdep.h"
 #include "hw/hw.h"
 #include "audio.h"
-#include "monitor/monitor.h"
-#include "qemu/timer.h"
-#include "sysemu/sysemu.h"
-#include "qemu/cutils.h"
-#include "sysemu/replay.h"
+#include "monitor.h"
+#include "qemu-timer.h"
+#include "sysemu.h"
 
 #define AUDIO_CAP "audio"
 #include "audio_int.h"
 
+/* #define DEBUG_PLIVE */
 /* #define DEBUG_LIVE */
 /* #define DEBUG_OUT */
 /* #define DEBUG_CAPTURE */
@@ -46,9 +44,6 @@
     that we generate the list.
 */
 static struct audio_driver *drvtab[] = {
-#ifdef CONFIG_SPICE
-    &spice_audio_driver,
-#endif
     CONFIG_AUDIO_DRIVERS
     &no_audio_driver,
     &wav_audio_driver
@@ -68,6 +63,8 @@ static struct {
         int hertz;
         int64_t ticks;
     } period;
+    int plive;
+    int log_to_monitor;
     int try_poll_in;
     int try_poll_out;
 } conf = {
@@ -95,14 +92,16 @@ static struct {
         }
     },
 
-    .period = { .hertz = 100 },
+    .period = { .hertz = 250 },
+    .plive = 0,
+    .log_to_monitor = 0,
     .try_poll_in = 1,
     .try_poll_out = 1,
 };
 
 static AudioState glob_audio_state;
 
-const struct mixeng_volume nominal_volume = {
+struct mixeng_volume nominal_volume = {
     .mute = 0,
 #ifdef FLOAT_MIXENG
     .r = 1.0,
@@ -116,9 +115,6 @@ const struct mixeng_volume nominal_volume = {
 #ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED
 #error No its not
 #else
-static void audio_print_options (const char *prefix,
-                                 struct audio_option *opt);
-
 int audio_bug (const char *funcname, int cond)
 {
     if (cond) {
@@ -126,16 +122,10 @@ int audio_bug (const char *funcname, int cond)
 
         AUD_log (NULL, "A bug was just triggered in %s\n", funcname);
         if (!shown) {
-            struct audio_driver *d;
-
             shown = 1;
             AUD_log (NULL, "Save all your work and restart without audio\n");
             AUD_log (NULL, "Please send bug report to av1474@comtv.ru\n");
             AUD_log (NULL, "I am sorry\n");
-            d = glob_audio_state.drv;
-            if (d) {
-                audio_print_options (d->name, d->options);
-            }
         }
         AUD_log (NULL, "Context:\n");
 
@@ -194,7 +184,7 @@ void *audio_calloc (const char *funcname, int nmemb, size_t size)
         return NULL;
     }
 
-    return g_malloc0 (len);
+    return qemu_mallocz (len);
 }
 
 static char *audio_alloc_prefix (const char *s)
@@ -208,7 +198,7 @@ static char *audio_alloc_prefix (const char *s)
     }
 
     len = strlen (s);
-    r = g_malloc (len + sizeof (qemu_prefix));
+    r = qemu_malloc (len + sizeof (qemu_prefix));
 
     u = r + sizeof (qemu_prefix) - 1;
 
@@ -329,11 +319,20 @@ static const char *audio_get_conf_str (const char *key,
 
 void AUD_vlog (const char *cap, const char *fmt, va_list ap)
 {
-    if (cap) {
-        fprintf(stderr, "%s: ", cap);
-    }
+    if (conf.log_to_monitor) {
+        if (cap) {
+            monitor_printf(cur_mon, "%s: ", cap);
+        }
 
-    vfprintf(stderr, fmt, ap);
+        monitor_vprintf(cur_mon, fmt, ap);
+    }
+    else {
+        if (cap) {
+            fprintf (stderr, "%s: ", cap);
+        }
+
+        vfprintf (stderr, fmt, ap);
+    }
 }
 
 void AUD_log (const char *cap, const char *fmt, ...)
@@ -414,7 +413,7 @@ static void audio_print_options (const char *prefix,
         printf ("    %s\n", opt->descr);
     }
 
-    g_free (uprefix);
+    qemu_free (uprefix);
 }
 
 static void audio_process_options (const char *prefix,
@@ -451,7 +450,7 @@ static void audio_process_options (const char *prefix,
          * (includes trailing zero) + zero + underscore (on behalf of
          * sizeof) */
         optlen = len + preflen + sizeof (qemu_prefix) + 1;
-        optname = g_malloc (optlen);
+        optname = qemu_malloc (optlen);
 
         pstrcpy (optname, optlen, qemu_prefix);
 
@@ -496,7 +495,7 @@ static void audio_process_options (const char *prefix,
             opt->overriddenp = &opt->overridden;
         }
         *opt->overriddenp = !def;
-        g_free (optname);
+        qemu_free (optname);
     }
 }
 
@@ -574,20 +573,17 @@ static int audio_pcm_info_eq (struct audio_pcm_info *info, struct audsettings *a
     switch (as->fmt) {
     case AUD_FMT_S8:
         sign = 1;
-        /* fall through */
     case AUD_FMT_U8:
         break;
 
     case AUD_FMT_S16:
         sign = 1;
-        /* fall through */
     case AUD_FMT_U16:
         bits = 16;
         break;
 
     case AUD_FMT_S32:
         sign = 1;
-        /* fall through */
     case AUD_FMT_U32:
         bits = 32;
         break;
@@ -694,11 +690,13 @@ void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len)
 /*
  * Capture
  */
-static void noop_conv (struct st_sample *dst, const void *src, int samples)
+static void noop_conv (struct st_sample *dst, const void *src,
+                       int samples, struct mixeng_volume *vol)
 {
     (void) src;
     (void) dst;
     (void) samples;
+    (void) vol;
 }
 
 static CaptureVoiceOut *audio_pcm_capture_find_specific (
@@ -770,7 +768,7 @@ static void audio_detach_capture (HWVoiceOut *hw)
 
         QLIST_REMOVE (sw, entries);
         QLIST_REMOVE (sc, entries);
-        g_free (sc);
+        qemu_free (sc);
         if (was_active) {
             /* We have removed soft voice from the capture:
                this might have changed the overall status of the capture
@@ -807,19 +805,17 @@ static int audio_attach_capture (HWVoiceOut *hw)
         sw->active = hw->enabled;
         sw->conv = noop_conv;
         sw->ratio = ((int64_t) hw_cap->info.freq << 32) / sw->info.freq;
-        sw->vol = nominal_volume;
         sw->rate = st_rate_start (sw->info.freq, hw_cap->info.freq);
         if (!sw->rate) {
             dolog ("Could not start rate conversion for `%s'\n", SW_NAME (sw));
-            g_free (sw);
+            qemu_free (sw);
             return -1;
         }
         QLIST_INSERT_HEAD (&hw_cap->sw_head, sw, entries);
         QLIST_INSERT_HEAD (&hw->cap_head, sc, entries);
 #ifdef DEBUG_CAPTURE
-        sw->name = g_strdup_printf ("for %p %d,%d,%d",
-                                    hw, sw->info.freq, sw->info.bits,
-                                    sw->info.nchannels);
+        asprintf (&sw->name, "for %p %d,%d,%d",
+                  hw, sw->info.freq, sw->info.bits, sw->info.nchannels);
         dolog ("Added %s active = %d\n", sw->name, sw->active);
 #endif
         if (sw->active) {
@@ -948,10 +944,6 @@ int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size)
         total += isamp;
     }
 
-    if (!(hw->ctl_caps & VOICE_VOLUME_CAP)) {
-        mixeng_volume (sw->buf, ret, &sw->vol);
-    }
-
     sw->clip (buf, sw->buf, ret);
     sw->total_hw_samples_acquired += total;
     return ret << sw->info.shift;
@@ -1033,11 +1025,7 @@ int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size)
     swlim = ((int64_t) dead << 32) / sw->ratio;
     swlim = audio_MIN (swlim, samples);
     if (swlim) {
-        sw->conv (sw->buf, buf, swlim);
-
-        if (!(sw->hw->ctl_caps & VOICE_VOLUME_CAP)) {
-            mixeng_volume (sw->buf, swlim, &sw->vol);
-        }
+        sw->conv (sw->buf, buf, swlim, &sw->vol);
     }
 
     while (swlim) {
@@ -1096,6 +1084,15 @@ static void audio_pcm_print_info (const char *cap, struct audio_pcm_info *info)
 /*
  * Timer
  */
+static void audio_timer (void *opaque)
+{
+    AudioState *s = opaque;
+
+    audio_run ("timer");
+    qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks);
+}
+
+
 static int audio_is_timer_needed (void)
 {
     HWVoiceIn *hwi = NULL;
@@ -1110,28 +1107,25 @@ static int audio_is_timer_needed (void)
     return 0;
 }
 
-static void audio_reset_timer (AudioState *s)
+static void audio_reset_timer (void)
 {
+    AudioState *s = &glob_audio_state;
+
     if (audio_is_timer_needed ()) {
-        timer_mod_anticipate_ns(s->ts,
-            qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + conf.period.ticks);
+        qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + 1);
     }
     else {
-        timer_del (s->ts);
+        qemu_del_timer (s->ts);
     }
 }
 
-static void audio_timer (void *opaque)
-{
-    audio_run ("timer");
-    audio_reset_timer (opaque);
-}
-
 /*
  * Public API
  */
 int AUD_write (SWVoiceOut *sw, void *buf, int size)
 {
+    int bytes;
+
     if (!sw) {
         /* XXX: Consider options */
         return size;
@@ -1142,11 +1136,14 @@ int AUD_write (SWVoiceOut *sw, void *buf, int size)
         return 0;
     }
 
-    return sw->hw->pcm_ops->write(sw, buf, size);
+    bytes = sw->hw->pcm_ops->write (sw, buf, size);
+    return bytes;
 }
 
 int AUD_read (SWVoiceIn *sw, void *buf, int size)
 {
+    int bytes;
+
     if (!sw) {
         /* XXX: Consider options */
         return size;
@@ -1157,7 +1154,8 @@ int AUD_read (SWVoiceIn *sw, void *buf, int size)
         return 0;
     }
 
-    return sw->hw->pcm_ops->read(sw, buf, size);
+    bytes = sw->hw->pcm_ops->read (sw, buf, size);
+    return bytes;
 }
 
 int AUD_get_buffer_size_out (SWVoiceOut *sw)
@@ -1185,7 +1183,7 @@ void AUD_set_active_out (SWVoiceOut *sw, int on)
                 hw->enabled = 1;
                 if (s->vm_running) {
                     hw->pcm_ops->ctl_out (hw, VOICE_ENABLE, conf.try_poll_out);
-                    audio_reset_timer (s);
+                    audio_reset_timer ();
                 }
             }
         }
@@ -1230,7 +1228,6 @@ void AUD_set_active_in (SWVoiceIn *sw, int on)
                 hw->enabled = 1;
                 if (s->vm_running) {
                     hw->pcm_ops->ctl_in (hw, VOICE_ENABLE, conf.try_poll_in);
-                    audio_reset_timer (s);
                 }
             }
             sw->total_hw_samples_acquired = hw->total_samples_captured;
@@ -1388,7 +1385,6 @@ static void audio_run_out (AudioState *s)
 
         prev_rpos = hw->rpos;
         played = hw->pcm_ops->run_out (hw, live);
-        replay_audio_out(&played);
         if (audio_bug (AUDIO_FUNC, hw->rpos >= hw->samples)) {
             dolog ("hw->rpos=%d hw->samples=%d played=%d\n",
                    hw->rpos, hw->samples, played);
@@ -1438,6 +1434,9 @@ static void audio_run_out (AudioState *s)
             while (sw) {
                 sw1 = sw->entries.le_next;
                 if (!sw->active && !sw->callback.fn) {
+#ifdef DEBUG_PLIVE
+                    dolog ("Finishing with old voice\n");
+#endif
                     audio_close_out (sw);
                 }
                 sw = sw1;
@@ -1452,12 +1451,9 @@ static void audio_run_in (AudioState *s)
 
     while ((hw = audio_pcm_hw_find_any_enabled_in (hw))) {
         SWVoiceIn *sw;
-        int captured = 0, min;
+        int captured, min;
 
-        if (replay_mode != REPLAY_MODE_PLAY) {
-            captured = hw->pcm_ops->run_in(hw);
-        }
-        replay_audio_in(&captured, hw->conv_buf, &hw->wpos, hw->samples);
+        captured = hw->pcm_ops->run_in (hw);
 
         min = audio_pcm_hw_find_min_in (hw);
         hw->total_samples_captured += captured - min;
@@ -1632,6 +1628,18 @@ static struct audio_option audio_options[] = {
         .valp  = &conf.period.hertz,
         .descr = "Timer period in HZ (0 - use lowest possible)"
     },
+    {
+        .name  = "PLIVE",
+        .tag   = AUD_OPT_BOOL,
+        .valp  = &conf.plive,
+        .descr = "(undocumented)"
+    },
+    {
+        .name  = "LOG_TO_MONITOR",
+        .tag   = AUD_OPT_BOOL,
+        .valp  = &conf.log_to_monitor,
+        .descr = "Print logging messages to monitor instead of stderr"
+    },
     { /* End of list */ }
 };
 
@@ -1648,7 +1656,7 @@ static void audio_pp_nb_voices (const char *typ, int nb)
         printf ("Theoretically supports many %s voices\n", typ);
         break;
     default:
-        printf ("Theoretically supports up to %d %s voices\n", nb, typ);
+        printf ("Theoretically supports upto %d %s voices\n", nb, typ);
         break;
     }
 
@@ -1726,7 +1734,7 @@ static int audio_driver_init (AudioState *s, struct audio_driver *drv)
 }
 
 static void audio_vm_change_state_handler (void *opaque, int running,
-                                           RunState state)
+                                           int reason)
 {
     AudioState *s = opaque;
     HWVoiceOut *hwo = NULL;
@@ -1741,29 +1749,19 @@ static void audio_vm_change_state_handler (void *opaque, int running,
     while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) {
         hwi->pcm_ops->ctl_in (hwi, op, conf.try_poll_in);
     }
-    audio_reset_timer (s);
+    audio_reset_timer ();
 }
 
-static bool is_cleaning_up;
-
-bool audio_is_cleaning_up(void)
-{
-    return is_cleaning_up;
-}
-
-void audio_cleanup(void)
+static void audio_atexit (void)
 {
     AudioState *s = &glob_audio_state;
-    HWVoiceOut *hwo, *hwon;
-    HWVoiceIn *hwi, *hwin;
+    HWVoiceOut *hwo = NULL;
+    HWVoiceIn *hwi = NULL;
 
-    is_cleaning_up = true;
-    QLIST_FOREACH_SAFE(hwo, &glob_audio_state.hw_head_out, entries, hwon) {
+    while ((hwo = audio_pcm_hw_find_any_enabled_out (hwo))) {
         SWVoiceCap *sc;
 
-        if (hwo->enabled) {
-            hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE);
-        }
+        hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE);
         hwo->pcm_ops->fini_out (hwo);
 
         for (sc = hwo->cap_head.lh_first; sc; sc = sc->entries.le_next) {
@@ -1774,20 +1772,15 @@ void audio_cleanup(void)
                 cb->ops.destroy (cb->opaque);
             }
         }
-        QLIST_REMOVE(hwo, entries);
     }
 
-    QLIST_FOREACH_SAFE(hwi, &glob_audio_state.hw_head_in, entries, hwin) {
-        if (hwi->enabled) {
-            hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE);
-        }
+    while ((hwi = audio_pcm_hw_find_any_enabled_in (hwi))) {
+        hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE);
         hwi->pcm_ops->fini_in (hwi);
-        QLIST_REMOVE(hwi, entries);
     }
 
     if (s->drv) {
         s->drv->fini (s->drv_opaque);
-        s->drv = NULL;
     }
 }
 
@@ -1795,7 +1788,8 @@ static const VMStateDescription vmstate_audio = {
     .name = "audio",
     .version_id = 1,
     .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
+    .minimum_version_id_old = 1,
+    .fields      = (VMStateField []) {
         VMSTATE_END_OF_LIST()
     }
 };
@@ -1815,9 +1809,12 @@ static void audio_init (void)
     QLIST_INIT (&s->hw_head_out);
     QLIST_INIT (&s->hw_head_in);
     QLIST_INIT (&s->cap_head);
-    atexit(audio_cleanup);
+    atexit (audio_atexit);
 
-    s->ts = timer_new_ns(QEMU_CLOCK_VIRTUAL, audio_timer, s);
+    s->ts = qemu_new_timer (vm_clock, audio_timer, s);
+    if (!s->ts) {
+        hw_error("Could not create audio timer\n");
+    }
 
     audio_process_options ("AUDIO", audio_options);
 
@@ -1868,8 +1865,12 @@ static void audio_init (void)
 
     if (!done) {
         done = !audio_driver_init (s, &no_audio_driver);
-        assert(done);
-        dolog("warning: Using timer based audio emulation\n");
+        if (!done) {
+            hw_error("Could not initialize audio subsystem\n");
+        }
+        else {
+            dolog ("warning: Using timer based audio emulation\n");
+        }
     }
 
     if (conf.period.hertz <= 0) {
@@ -1880,7 +1881,8 @@ static void audio_init (void)
         }
         conf.period.ticks = 1;
     } else {
-        conf.period.ticks = NANOSECONDS_PER_SECOND / conf.period.hertz;
+        conf.period.ticks =
+            muldiv64 (1, get_ticks_per_sec (), conf.period.hertz);
     }
 
     e = qemu_add_vm_change_state_handler (audio_vm_change_state_handler, s);
@@ -1890,13 +1892,13 @@ static void audio_init (void)
     }
 
     QLIST_INIT (&s->card_head);
-    vmstate_register (NULL, 0, &vmstate_audio, s);
+    vmstate_register (0, &vmstate_audio, s);
 }
 
 void AUD_register_card (const char *name, QEMUSoundCard *card)
 {
     audio_init ();
-    card->name = g_strdup (name);
+    card->name = qemu_strdup (name);
     memset (&card->entries, 0, sizeof (card->entries));
     QLIST_INSERT_HEAD (&glob_audio_state.card_head, card, entries);
 }
@@ -1904,7 +1906,7 @@ void AUD_register_card (const char *name, QEMUSoundCard *card)
 void AUD_remove_card (QEMUSoundCard *card)
 {
     QLIST_REMOVE (card, entries);
-    g_free (card->name);
+    qemu_free (card->name);
 }
 
 
@@ -1982,17 +1984,18 @@ CaptureVoiceOut *AUD_add_capture (
         QLIST_INSERT_HEAD (&s->cap_head, cap, entries);
         QLIST_INSERT_HEAD (&cap->cb_head, cb, entries);
 
-        QLIST_FOREACH(hw, &glob_audio_state.hw_head_out, entries) {
+        hw = NULL;
+        while ((hw = audio_pcm_hw_find_any_out (hw))) {
             audio_attach_capture (hw);
         }
         return cap;
 
     err3:
-        g_free (cap->hw.mix_buf);
+        qemu_free (cap->hw.mix_buf);
     err2:
-        g_free (cap);
+        qemu_free (cap);
     err1:
-        g_free (cb);
+        qemu_free (cb);
     err0:
         return NULL;
     }
@@ -2006,7 +2009,7 @@ void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque)
         if (cb->opaque == cb_opaque) {
             cb->ops.destroy (cb_opaque);
             QLIST_REMOVE (cb, entries);
-            g_free (cb);
+            qemu_free (cb);
 
             if (!cap->cb_head.lh_first) {
                 SWVoiceOut *sw = cap->hw.sw_head.lh_first, *sw1;
@@ -2024,13 +2027,11 @@ void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque)
                     }
                     QLIST_REMOVE (sw, entries);
                     QLIST_REMOVE (sc, entries);
-                    g_free (sc);
+                    qemu_free (sc);
                     sw = sw1;
                 }
                 QLIST_REMOVE (cap, entries);
-                g_free (cap->hw.mix_buf);
-                g_free (cap->buf);
-                g_free (cap);
+                qemu_free (cap);
             }
             return;
         }
@@ -2040,29 +2041,17 @@ void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque)
 void AUD_set_volume_out (SWVoiceOut *sw, int mute, uint8_t lvol, uint8_t rvol)
 {
     if (sw) {
-        HWVoiceOut *hw = sw->hw;
-
         sw->vol.mute = mute;
         sw->vol.l = nominal_volume.l * lvol / 255;
         sw->vol.r = nominal_volume.r * rvol / 255;
-
-        if (hw->pcm_ops->ctl_out) {
-            hw->pcm_ops->ctl_out (hw, VOICE_VOLUME, sw);
-        }
     }
 }
 
 void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol)
 {
     if (sw) {
-        HWVoiceIn *hw = sw->hw;
-
         sw->vol.mute = mute;
         sw->vol.l = nominal_volume.l * lvol / 255;
         sw->vol.r = nominal_volume.r * rvol / 255;
-
-        if (hw->pcm_ops->ctl_in) {
-            hw->pcm_ops->ctl_in (hw, VOICE_VOLUME, sw);
-        }
     }
 }

audio/audio.h

@@ -21,11 +21,11 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-
 #ifndef QEMU_AUDIO_H
 #define QEMU_AUDIO_H
 
-#include "qemu/queue.h"
+#include "config-host.h"
+#include "qemu-queue.h"
 
 typedef void (*audio_callback_fn) (void *opaque, int avail);
 
@@ -86,8 +86,12 @@ typedef struct QEMUAudioTimeStamp {
     uint64_t old_ts;
 } QEMUAudioTimeStamp;
 
-void AUD_vlog (const char *cap, const char *fmt, va_list ap) GCC_FMT_ATTR(2, 0);
-void AUD_log (const char *cap, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
+void AUD_vlog (const char *cap, const char *fmt, va_list ap);
+void AUD_log (const char *cap, const char *fmt, ...)
+#ifdef __GNUC__
+    __attribute__ ((__format__ (__printf__, 2, 3)))
+#endif
+    ;
 
 void AUD_help (void);
 void AUD_register_card (const char *name, QEMUSoundCard *card);
@@ -163,12 +167,4 @@ static inline void *advance (void *p, int incr)
 int wav_start_capture (CaptureState *s, const char *path, int freq,
                        int bits, int nchannels);
 
-bool audio_is_cleaning_up(void);
-void audio_cleanup(void);
-
-void audio_sample_to_uint64(void *samples, int pos,
-                            uint64_t *left, uint64_t *right);
-void audio_sample_from_uint64(void *samples, int pos,
-                            uint64_t left, uint64_t right);
-
-#endif /* QEMU_AUDIO_H */
+#endif  /* audio.h */

audio/audio_int.h

@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-
 #ifndef QEMU_AUDIO_INT_H
 #define QEMU_AUDIO_INT_H
 
@@ -83,7 +82,6 @@ typedef struct HWVoiceOut {
     int samples;
     QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
     QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
-    int ctl_caps;
     struct audio_pcm_ops *pcm_ops;
     QLIST_ENTRY (HWVoiceOut) entries;
 } HWVoiceOut;
@@ -103,7 +101,6 @@ typedef struct HWVoiceIn {
 
     int samples;
     QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head;
-    int ctl_caps;
     struct audio_pcm_ops *pcm_ops;
     QLIST_ENTRY (HWVoiceIn) entries;
 } HWVoiceIn;
@@ -153,17 +150,16 @@ struct audio_driver {
     int max_voices_in;
     int voice_size_out;
     int voice_size_in;
-    int ctl_caps;
 };
 
 struct audio_pcm_ops {
-    int  (*init_out)(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque);
+    int  (*init_out)(HWVoiceOut *hw, struct audsettings *as);
     void (*fini_out)(HWVoiceOut *hw);
     int  (*run_out) (HWVoiceOut *hw, int live);
     int  (*write)   (SWVoiceOut *sw, void *buf, int size);
     int  (*ctl_out) (HWVoiceOut *hw, int cmd, ...);
 
-    int  (*init_in) (HWVoiceIn *hw, struct audsettings *as, void *drv_opaque);
+    int  (*init_in) (HWVoiceIn *hw, struct audsettings *as);
     void (*fini_in) (HWVoiceIn *hw);
     int  (*run_in)  (HWVoiceIn *hw);
     int  (*read)    (SWVoiceIn *sw, void *buf, int size);
@@ -207,12 +203,14 @@ extern struct audio_driver no_audio_driver;
 extern struct audio_driver oss_audio_driver;
 extern struct audio_driver sdl_audio_driver;
 extern struct audio_driver wav_audio_driver;
+extern struct audio_driver fmod_audio_driver;
 extern struct audio_driver alsa_audio_driver;
 extern struct audio_driver coreaudio_audio_driver;
 extern struct audio_driver dsound_audio_driver;
+extern struct audio_driver esd_audio_driver;
 extern struct audio_driver pa_audio_driver;
-extern struct audio_driver spice_audio_driver;
-extern const struct mixeng_volume nominal_volume;
+extern struct audio_driver winwave_audio_driver;
+extern struct mixeng_volume nominal_volume;
 
 void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
 void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);
@@ -232,22 +230,52 @@ void audio_run (const char *msg);
 
 #define VOICE_ENABLE 1
 #define VOICE_DISABLE 2
-#define VOICE_VOLUME 3
-
-#define VOICE_VOLUME_CAP (1 << VOICE_VOLUME)
 
 static inline int audio_ring_dist (int dst, int src, int len)
 {
     return (dst >= src) ? (dst - src) : (len - src + dst);
 }
 
-#define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
+#if defined __GNUC__
+#define GCC_ATTR __attribute__ ((__unused__, __format__ (__printf__, 1, 2)))
+#define GCC_FMT_ATTR(n, m) __attribute__ ((__format__ (__printf__, n, m)))
+#else
+#define GCC_ATTR /**/
+#define GCC_FMT_ATTR(n, m)
+#endif
+
+static void GCC_ATTR dolog (const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start (ap, fmt);
+    AUD_vlog (AUDIO_CAP, fmt, ap);
+    va_end (ap);
+}
 
 #ifdef DEBUG
-#define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
+static void GCC_ATTR ldebug (const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start (ap, fmt);
+    AUD_vlog (AUDIO_CAP, fmt, ap);
+    va_end (ap);
+}
 #else
-#define ldebug(fmt, ...) (void)0
+#if defined NDEBUG && defined __GNUC__
+#define ldebug(...)
+#elif defined NDEBUG && defined _MSC_VER
+#define ldebug __noop
+#else
+static void GCC_ATTR ldebug (const char *fmt, ...)
+{
+    (void) fmt;
+}
 #endif
+#endif
+
+#undef GCC_ATTR
 
 #define AUDIO_STRINGIFY_(n) #n
 #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
@@ -258,4 +286,4 @@ static inline int audio_ring_dist (int dst, int src, int len)
 #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
 #endif
 
-#endif /* QEMU_AUDIO_INT_H */
+#endif /* audio_int.h */

audio/audio_pt_int.c

@@ -1,4 +1,3 @@
-#include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "audio.h"
 
@@ -7,8 +6,7 @@
 #include "audio_int.h"
 #include "audio_pt_int.h"
 
-static void GCC_FMT_ATTR(3, 4) logerr (struct audio_pt *pt, int err,
-                                       const char *fmt, ...)
+static void logerr (struct audio_pt *pt, int err, const char *fmt, ...)
 {
     va_list ap;
 
@@ -25,16 +23,9 @@ int audio_pt_init (struct audio_pt *p, void *(*func) (void *),
 {
     int err, err2;
     const char *efunc;
-    sigset_t set, old_set;
 
     p->drv = drv;
 
-    err = sigfillset (&set);
-    if (err) {
-        logerr (p, errno, "%s(%s): sigfillset failed", cap, AUDIO_FUNC);
-        return -1;
-    }
-
     err = pthread_mutex_init (&p->mutex, NULL);
     if (err) {
         efunc = "pthread_mutex_init";
@@ -47,23 +38,7 @@ int audio_pt_init (struct audio_pt *p, void *(*func) (void *),
         goto err1;
     }
 
-    err = pthread_sigmask (SIG_BLOCK, &set, &old_set);
-    if (err) {
-        efunc = "pthread_sigmask";
-        goto err2;
-    }
-
     err = pthread_create (&p->thread, NULL, func, opaque);
-
-    err2 = pthread_sigmask (SIG_SETMASK, &old_set, NULL);
-    if (err2) {
-        logerr (p, err2, "%s(%s): pthread_sigmask (restore) failed",
-                cap, AUDIO_FUNC);
-        /* We have failed to restore original signal mask, all bets are off,
-           so terminate the process */
-        exit (EXIT_FAILURE);
-    }
-
     if (err) {
         efunc = "pthread_create";
         goto err2;

audio/audio_pt_int.h

@@ -19,4 +19,4 @@ int audio_pt_wait (struct audio_pt *, const char *);
 int audio_pt_unlock_and_signal (struct audio_pt *, const char *);
 int audio_pt_join (struct audio_pt *, void **, const char *);
 
-#endif /* QEMU_AUDIO_PT_INT_H */
+#endif /* audio_pt_int.h */

audio/audio_template.h

@@ -71,7 +71,10 @@ static void glue (audio_init_nb_voices_, TYPE) (struct audio_driver *drv)
 
 static void glue (audio_pcm_hw_free_resources_, TYPE) (HW *hw)
 {
-    g_free (HWBUF);
+    if (HWBUF) {
+        qemu_free (HWBUF);
+    }
+
     HWBUF = NULL;
 }
 
@@ -89,7 +92,9 @@ static int glue (audio_pcm_hw_alloc_resources_, TYPE) (HW *hw)
 
 static void glue (audio_pcm_sw_free_resources_, TYPE) (SW *sw)
 {
-    g_free (sw->buf);
+    if (sw->buf) {
+        qemu_free (sw->buf);
+    }
 
     if (sw->rate) {
         st_rate_stop (sw->rate);
@@ -103,7 +108,11 @@ static int glue (audio_pcm_sw_alloc_resources_, TYPE) (SW *sw)
 {
     int samples;
 
+#ifdef DAC
+    samples = sw->hw->samples;
+#else
     samples = ((int64_t) sw->hw->samples << 32) / sw->ratio;
+#endif
 
     sw->buf = audio_calloc (AUDIO_FUNC, samples, sizeof (struct st_sample));
     if (!sw->buf) {
@@ -118,7 +127,7 @@ static int glue (audio_pcm_sw_alloc_resources_, TYPE) (SW *sw)
     sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq);
 #endif
     if (!sw->rate) {
-        g_free (sw->buf);
+        qemu_free (sw->buf);
         sw->buf = NULL;
         return -1;
     }
@@ -155,10 +164,10 @@ static int glue (audio_pcm_sw_init_, TYPE) (
         [sw->info.swap_endianness]
         [audio_bits_to_index (sw->info.bits)];
 
-    sw->name = g_strdup (name);
+    sw->name = qemu_strdup (name);
     err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw);
     if (err) {
-        g_free (sw->name);
+        qemu_free (sw->name);
         sw->name = NULL;
     }
     return err;
@@ -167,8 +176,10 @@ static int glue (audio_pcm_sw_init_, TYPE) (
 static void glue (audio_pcm_sw_fini_, TYPE) (SW *sw)
 {
     glue (audio_pcm_sw_free_resources_, TYPE) (sw);
-    g_free (sw->name);
-    sw->name = NULL;
+    if (sw->name) {
+        qemu_free (sw->name);
+        sw->name = NULL;
+    }
 }
 
 static void glue (audio_pcm_hw_add_sw_, TYPE) (HW *hw, SW *sw)
@@ -191,10 +202,10 @@ static void glue (audio_pcm_hw_gc_, TYPE) (HW **hwp)
         audio_detach_capture (hw);
 #endif
         QLIST_REMOVE (hw, entries);
-        glue (hw->pcm_ops->fini_, TYPE) (hw);
         glue (s->nb_hw_voices_, TYPE) += 1;
         glue (audio_pcm_hw_free_resources_ ,TYPE) (hw);
-        g_free (hw);
+        glue (hw->pcm_ops->fini_, TYPE) (hw);
+        qemu_free (hw);
         *hwp = NULL;
     }
 }
@@ -256,13 +267,11 @@ static HW *glue (audio_pcm_hw_add_new_, TYPE) (struct audsettings *as)
     }
 
     hw->pcm_ops = drv->pcm_ops;
-    hw->ctl_caps = drv->ctl_caps;
-
     QLIST_INIT (&hw->sw_head);
 #ifdef DAC
     QLIST_INIT (&hw->cap_head);
 #endif
-    if (glue (hw->pcm_ops->init_, TYPE) (hw, as, s->drv_opaque)) {
+    if (glue (hw->pcm_ops->init_, TYPE) (hw, as)) {
         goto err0;
     }
 
@@ -295,7 +304,7 @@ static HW *glue (audio_pcm_hw_add_new_, TYPE) (struct audsettings *as)
  err1:
     glue (hw->pcm_ops->fini_, TYPE) (hw);
  err0:
-    g_free (hw);
+    qemu_free (hw);
     return NULL;
 }
 
@@ -363,7 +372,7 @@ err3:
     glue (audio_pcm_hw_del_sw_, TYPE) (sw);
     glue (audio_pcm_hw_gc_, TYPE) (&hw);
 err2:
-    g_free (sw);
+    qemu_free (sw);
 err1:
     return NULL;
 }
@@ -373,7 +382,7 @@ static void glue (audio_close_, TYPE) (SW *sw)
     glue (audio_pcm_sw_fini_, TYPE) (sw);
     glue (audio_pcm_hw_del_sw_, TYPE) (sw);
     glue (audio_pcm_hw_gc_, TYPE) (&sw->hw);
-    g_free (sw);
+    qemu_free (sw);
 }
 
 void glue (AUD_close_, TYPE) (QEMUSoundCard *card, SW *sw)
@@ -398,6 +407,13 @@ SW *glue (AUD_open_, TYPE) (
     )
 {
     AudioState *s = &glob_audio_state;
+#ifdef DAC
+    int live = 0;
+    SW *old_sw = NULL;
+#endif
+
+    ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
+            name, as->freq, as->nchannels, as->fmt);
 
     if (audio_bug (AUDIO_FUNC, !card || !name || !callback_fn || !as)) {
         dolog ("card=%p name=%p callback_fn=%p as=%p\n",
@@ -405,9 +421,6 @@ SW *glue (AUD_open_, TYPE) (
         goto fail;
     }
 
-    ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
-            name, as->freq, as->nchannels, as->fmt);
-
     if (audio_bug (AUDIO_FUNC, audio_validate_settings (as))) {
         audio_print_settings (as);
         goto fail;
@@ -422,6 +435,29 @@ SW *glue (AUD_open_, TYPE) (
         return sw;
     }
 
+#ifdef DAC
+    if (conf.plive && sw && (!sw->active && !sw->empty)) {
+        live = sw->total_hw_samples_mixed;
+
+#ifdef DEBUG_PLIVE
+        dolog ("Replacing voice %s with %d live samples\n", SW_NAME (sw), live);
+        dolog ("Old %s freq %d, bits %d, channels %d\n",
+               SW_NAME (sw), sw->info.freq, sw->info.bits, sw->info.nchannels);
+        dolog ("New %s freq %d, bits %d, channels %d\n",
+               name,
+               as->freq,
+               (as->fmt == AUD_FMT_S16 || as->fmt == AUD_FMT_U16) ? 16 : 8,
+               as->nchannels);
+#endif
+
+        if (live) {
+            old_sw = sw;
+            old_sw->callback.fn = NULL;
+            sw = NULL;
+        }
+    }
+#endif
+
     if (!glue (conf.fixed_, TYPE).enabled && sw) {
         glue (AUD_close_, TYPE) (card, sw);
         sw = NULL;
@@ -454,6 +490,20 @@ SW *glue (AUD_open_, TYPE) (
     sw->callback.fn = callback_fn;
     sw->callback.opaque = callback_opaque;
 
+#ifdef DAC
+    if (live) {
+        int mixed =
+            (live << old_sw->info.shift)
+            * old_sw->info.bytes_per_second
+            / sw->info.bytes_per_second;
+
+#ifdef DEBUG_PLIVE
+        dolog ("Silence will be mixed %d\n", mixed);
+#endif
+        sw->total_hw_samples_mixed += mixed;
+    }
+#endif
+
 #ifdef DEBUG_AUDIO
     dolog ("%s\n", name);
     audio_pcm_print_info ("hw", &sw->hw->info);
@@ -491,7 +541,7 @@ uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
 
     cur_ts = sw->hw->ts_helper;
     old_ts = ts->old_ts;
-    /* dolog ("cur %" PRId64 " old %" PRId64 "\n", cur_ts, old_ts); */
+    /* dolog ("cur %lld old %lld\n", cur_ts, old_ts); */
 
     if (cur_ts >= old_ts) {
         delta = cur_ts - old_ts;

audio/audio_win_int.c

@@ -1,7 +1,7 @@
 /* public domain */
 
-#include "qemu/osdep.h"
 #include "qemu-common.h"
+#include "audio.h"
 
 #define AUDIO_CAP "win-int"
 #include <windows.h>

audio/coreaudio.c

@@ -22,8 +22,8 @@
  * THE SOFTWARE.
  */
 
-#include "qemu/osdep.h"
 #include <CoreAudio/CoreAudio.h>
+#include <string.h>             /* strerror */
 #include <pthread.h>            /* pthread_X */
 
 #include "qemu-common.h"
@@ -32,251 +32,31 @@
 #define AUDIO_CAP "coreaudio"
 #include "audio_int.h"
 
-#ifndef MAC_OS_X_VERSION_10_6
-#define MAC_OS_X_VERSION_10_6 1060
-#endif
-
-typedef struct {
+struct {
     int buffer_frames;
     int nbuffers;
-} CoreaudioConf;
+    int isAtexit;
+} conf = {
+    .buffer_frames = 512,
+    .nbuffers = 4,
+    .isAtexit = 0
+};
 
 typedef struct coreaudioVoiceOut {
     HWVoiceOut hw;
     pthread_mutex_t mutex;
+    int isAtexit;
     AudioDeviceID outputDeviceID;
     UInt32 audioDevicePropertyBufferFrameSize;
     AudioStreamBasicDescription outputStreamBasicDescription;
-    AudioDeviceIOProcID ioprocid;
     int live;
     int decr;
     int rpos;
 } coreaudioVoiceOut;
 
-#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
-/* The APIs used here only become available from 10.6 */
-
-static OSStatus coreaudio_get_voice(AudioDeviceID *id)
-{
-    UInt32 size = sizeof(*id);
-    AudioObjectPropertyAddress addr = {
-        kAudioHardwarePropertyDefaultOutputDevice,
-        kAudioObjectPropertyScopeGlobal,
-        kAudioObjectPropertyElementMaster
-    };
-
-    return AudioObjectGetPropertyData(kAudioObjectSystemObject,
-                                      &addr,
-                                      0,
-                                      NULL,
-                                      &size,
-                                      id);
-}
-
-static OSStatus coreaudio_get_framesizerange(AudioDeviceID id,
-                                             AudioValueRange *framerange)
-{
-    UInt32 size = sizeof(*framerange);
-    AudioObjectPropertyAddress addr = {
-        kAudioDevicePropertyBufferFrameSizeRange,
-        kAudioDevicePropertyScopeOutput,
-        kAudioObjectPropertyElementMaster
-    };
-
-    return AudioObjectGetPropertyData(id,
-                                      &addr,
-                                      0,
-                                      NULL,
-                                      &size,
-                                      framerange);
-}
-
-static OSStatus coreaudio_get_framesize(AudioDeviceID id, UInt32 *framesize)
-{
-    UInt32 size = sizeof(*framesize);
-    AudioObjectPropertyAddress addr = {
-        kAudioDevicePropertyBufferFrameSize,
-        kAudioDevicePropertyScopeOutput,
-        kAudioObjectPropertyElementMaster
-    };
-
-    return AudioObjectGetPropertyData(id,
-                                      &addr,
-                                      0,
-                                      NULL,
-                                      &size,
-                                      framesize);
-}
-
-static OSStatus coreaudio_set_framesize(AudioDeviceID id, UInt32 *framesize)
-{
-    UInt32 size = sizeof(*framesize);
-    AudioObjectPropertyAddress addr = {
-        kAudioDevicePropertyBufferFrameSize,
-        kAudioDevicePropertyScopeOutput,
-        kAudioObjectPropertyElementMaster
-    };
-
-    return AudioObjectSetPropertyData(id,
-                                      &addr,
-                                      0,
-                                      NULL,
-                                      size,
-                                      framesize);
-}
-
-static OSStatus coreaudio_get_streamformat(AudioDeviceID id,
-                                           AudioStreamBasicDescription *d)
-{
-    UInt32 size = sizeof(*d);
-    AudioObjectPropertyAddress addr = {
-        kAudioDevicePropertyStreamFormat,
-        kAudioDevicePropertyScopeOutput,
-        kAudioObjectPropertyElementMaster
-    };
-
-    return AudioObjectGetPropertyData(id,
-                                      &addr,
-                                      0,
-                                      NULL,
-                                      &size,
-                                      d);
-}
-
-static OSStatus coreaudio_set_streamformat(AudioDeviceID id,
-                                           AudioStreamBasicDescription *d)
-{
-    UInt32 size = sizeof(*d);
-    AudioObjectPropertyAddress addr = {
-        kAudioDevicePropertyStreamFormat,
-        kAudioDevicePropertyScopeOutput,
-        kAudioObjectPropertyElementMaster
-    };
-
-    return AudioObjectSetPropertyData(id,
-                                      &addr,
-                                      0,
-                                      NULL,
-                                      size,
-                                      d);
-}
-
-static OSStatus coreaudio_get_isrunning(AudioDeviceID id, UInt32 *result)
-{
-    UInt32 size = sizeof(*result);
-    AudioObjectPropertyAddress addr = {
-        kAudioDevicePropertyDeviceIsRunning,
-        kAudioDevicePropertyScopeOutput,
-        kAudioObjectPropertyElementMaster
-    };
-
-    return AudioObjectGetPropertyData(id,
-                                      &addr,
-                                      0,
-                                      NULL,
-                                      &size,
-                                      result);
-}
-#else
-/* Legacy versions of functions using deprecated APIs */
-
-static OSStatus coreaudio_get_voice(AudioDeviceID *id)
-{
-    UInt32 size = sizeof(*id);
-
-    return AudioHardwareGetProperty(
-        kAudioHardwarePropertyDefaultOutputDevice,
-        &size,
-        id);
-}
-
-static OSStatus coreaudio_get_framesizerange(AudioDeviceID id,
-                                             AudioValueRange *framerange)
-{
-    UInt32 size = sizeof(*framerange);
-
-    return AudioDeviceGetProperty(
-        id,
-        0,
-        0,
-        kAudioDevicePropertyBufferFrameSizeRange,
-        &size,
-        framerange);
-}
-
-static OSStatus coreaudio_get_framesize(AudioDeviceID id, UInt32 *framesize)
-{
-    UInt32 size = sizeof(*framesize);
-
-    return AudioDeviceGetProperty(
-        id,
-        0,
-        false,
-        kAudioDevicePropertyBufferFrameSize,
-        &size,
-        framesize);
-}
-
-static OSStatus coreaudio_set_framesize(AudioDeviceID id, UInt32 *framesize)
-{
-    UInt32 size = sizeof(*framesize);
-
-    return AudioDeviceSetProperty(
-        id,
-        NULL,
-        0,
-        false,
-        kAudioDevicePropertyBufferFrameSize,
-        size,
-        framesize);
-}
-
-static OSStatus coreaudio_get_streamformat(AudioDeviceID id,
-                                           AudioStreamBasicDescription *d)
-{
-    UInt32 size = sizeof(*d);
-
-    return AudioDeviceGetProperty(
-        id,
-        0,
-        false,
-        kAudioDevicePropertyStreamFormat,
-        &size,
-        d);
-}
-
-static OSStatus coreaudio_set_streamformat(AudioDeviceID id,
-                                           AudioStreamBasicDescription *d)
-{
-    UInt32 size = sizeof(*d);
-
-    return AudioDeviceSetProperty(
-        id,
-        0,
-        0,
-        0,
-        kAudioDevicePropertyStreamFormat,
-        size,
-        d);
-}
-
-static OSStatus coreaudio_get_isrunning(AudioDeviceID id, UInt32 *result)
-{
-    UInt32 size = sizeof(*result);
-
-    return AudioDeviceGetProperty(
-        id,
-        0,
-        0,
-        kAudioDevicePropertyDeviceIsRunning,
-        &size,
-        result);
-}
-#endif
-
 static void coreaudio_logstatus (OSStatus status)
 {
-    const char *str = "BUG";
+    char *str = "BUG";
 
     switch(status) {
     case kAudioHardwareNoError:
@@ -324,7 +104,7 @@ static void coreaudio_logstatus (OSStatus status)
         break;
 
     default:
-        AUD_log (AUDIO_CAP, "Reason: status code %" PRId32 "\n", (int32_t)status);
+        AUD_log (AUDIO_CAP, "Reason: status code %ld\n", status);
         return;
     }
 
@@ -368,7 +148,10 @@ static inline UInt32 isPlaying (AudioDeviceID outputDeviceID)
 {
     OSStatus status;
     UInt32 result = 0;
-    status = coreaudio_get_isrunning(outputDeviceID, &result);
+    UInt32 propertySize = sizeof(outputDeviceID);
+    status = AudioDeviceGetProperty(
+        outputDeviceID, 0, 0,
+        kAudioDevicePropertyDeviceIsRunning, &propertySize, &result);
     if (status != kAudioHardwareNoError) {
         coreaudio_logerr(status,
                          "Could not determine whether Device is playing\n");
@@ -376,6 +159,11 @@ static inline UInt32 isPlaying (AudioDeviceID outputDeviceID)
     return result;
 }
 
+static void coreaudio_atexit (void)
+{
+    conf.isAtexit = 1;
+}
+
 static int coreaudio_lock (coreaudioVoiceOut *core, const char *fn_name)
 {
     int err;
@@ -499,15 +287,14 @@ static int coreaudio_write (SWVoiceOut *sw, void *buf, int len)
     return audio_pcm_sw_write (sw, buf, len);
 }
 
-static int coreaudio_init_out(HWVoiceOut *hw, struct audsettings *as,
-                              void *drv_opaque)
+static int coreaudio_init_out (HWVoiceOut *hw, struct audsettings *as)
 {
     OSStatus status;
     coreaudioVoiceOut *core = (coreaudioVoiceOut *) hw;
+    UInt32 propertySize;
     int err;
     const char *typ = "playback";
     AudioValueRange frameRange;
-    CoreaudioConf *conf = drv_opaque;
 
     /* create mutex */
     err = pthread_mutex_init(&core->mutex, NULL);
@@ -518,7 +305,12 @@ static int coreaudio_init_out(HWVoiceOut *hw, struct audsettings *as,
 
     audio_pcm_init_info (&hw->info, as);
 
-    status = coreaudio_get_voice(&core->outputDeviceID);
+    /* open default output device */
+    propertySize = sizeof(core->outputDeviceID);
+    status = AudioHardwareGetProperty(
+        kAudioHardwarePropertyDefaultOutputDevice,
+        &propertySize,
+        &core->outputDeviceID);
     if (status != kAudioHardwareNoError) {
         coreaudio_logerr2 (status, typ,
                            "Could not get default output Device\n");
@@ -530,49 +322,74 @@ static int coreaudio_init_out(HWVoiceOut *hw, struct audsettings *as,
     }
 
     /* get minimum and maximum buffer frame sizes */
-    status = coreaudio_get_framesizerange(core->outputDeviceID,
-                                          &frameRange);
+    propertySize = sizeof(frameRange);
+    status = AudioDeviceGetProperty(
+        core->outputDeviceID,
+        0,
+        0,
+        kAudioDevicePropertyBufferFrameSizeRange,
+        &propertySize,
+        &frameRange);
     if (status != kAudioHardwareNoError) {
         coreaudio_logerr2 (status, typ,
                            "Could not get device buffer frame range\n");
         return -1;
     }
 
-    if (frameRange.mMinimum > conf->buffer_frames) {
+    if (frameRange.mMinimum > conf.buffer_frames) {
         core->audioDevicePropertyBufferFrameSize = (UInt32) frameRange.mMinimum;
         dolog ("warning: Upsizing Buffer Frames to %f\n", frameRange.mMinimum);
     }
-    else if (frameRange.mMaximum < conf->buffer_frames) {
+    else if (frameRange.mMaximum < conf.buffer_frames) {
         core->audioDevicePropertyBufferFrameSize = (UInt32) frameRange.mMaximum;
         dolog ("warning: Downsizing Buffer Frames to %f\n", frameRange.mMaximum);
     }
     else {
-        core->audioDevicePropertyBufferFrameSize = conf->buffer_frames;
+        core->audioDevicePropertyBufferFrameSize = conf.buffer_frames;
     }
 
     /* set Buffer Frame Size */
-    status = coreaudio_set_framesize(core->outputDeviceID,
-                                     &core->audioDevicePropertyBufferFrameSize);
+    propertySize = sizeof(core->audioDevicePropertyBufferFrameSize);
+    status = AudioDeviceSetProperty(
+        core->outputDeviceID,
+        NULL,
+        0,
+        false,
+        kAudioDevicePropertyBufferFrameSize,
+        propertySize,
+        &core->audioDevicePropertyBufferFrameSize);
     if (status != kAudioHardwareNoError) {
         coreaudio_logerr2 (status, typ,
-                           "Could not set device buffer frame size %" PRIu32 "\n",
-                           (uint32_t)core->audioDevicePropertyBufferFrameSize);
+                           "Could not set device buffer frame size %ld\n",
+                           core->audioDevicePropertyBufferFrameSize);
         return -1;
     }
 
     /* get Buffer Frame Size */
-    status = coreaudio_get_framesize(core->outputDeviceID,
-                                     &core->audioDevicePropertyBufferFrameSize);
+    propertySize = sizeof(core->audioDevicePropertyBufferFrameSize);
+    status = AudioDeviceGetProperty(
+        core->outputDeviceID,
+        0,
+        false,
+        kAudioDevicePropertyBufferFrameSize,
+        &propertySize,
+        &core->audioDevicePropertyBufferFrameSize);
     if (status != kAudioHardwareNoError) {
         coreaudio_logerr2 (status, typ,
                            "Could not get device buffer frame size\n");
         return -1;
     }
-    hw->samples = conf->nbuffers * core->audioDevicePropertyBufferFrameSize;
+    hw->samples = conf.nbuffers * core->audioDevicePropertyBufferFrameSize;
 
     /* get StreamFormat */
-    status = coreaudio_get_streamformat(core->outputDeviceID,
-                                        &core->outputStreamBasicDescription);
+    propertySize = sizeof(core->outputStreamBasicDescription);
+    status = AudioDeviceGetProperty(
+        core->outputDeviceID,
+        0,
+        false,
+        kAudioDevicePropertyStreamFormat,
+        &propertySize,
+        &core->outputStreamBasicDescription);
     if (status != kAudioHardwareNoError) {
         coreaudio_logerr2 (status, typ,
                            "Could not get Device Stream properties\n");
@@ -582,8 +399,15 @@ static int coreaudio_init_out(HWVoiceOut *hw, struct audsettings *as,
 
     /* set Samplerate */
     core->outputStreamBasicDescription.mSampleRate = (Float64) as->freq;
-    status = coreaudio_set_streamformat(core->outputDeviceID,
-                                        &core->outputStreamBasicDescription);
+    propertySize = sizeof(core->outputStreamBasicDescription);
+    status = AudioDeviceSetProperty(
+        core->outputDeviceID,
+        0,
+        0,
+        0,
+        kAudioDevicePropertyStreamFormat,
+        propertySize,
+        &core->outputStreamBasicDescription);
     if (status != kAudioHardwareNoError) {
         coreaudio_logerr2 (status, typ, "Could not set samplerate %d\n",
                            as->freq);
@@ -592,12 +416,8 @@ static int coreaudio_init_out(HWVoiceOut *hw, struct audsettings *as,
     }
 
     /* set Callback */
-    core->ioprocid = NULL;
-    status = AudioDeviceCreateIOProcID(core->outputDeviceID,
-                                       audioDeviceIOProc,
-                                       hw,
-                                       &core->ioprocid);
-    if (status != kAudioHardwareNoError || core->ioprocid == NULL) {
+    status = AudioDeviceAddIOProc(core->outputDeviceID, audioDeviceIOProc, hw);
+    if (status != kAudioHardwareNoError) {
         coreaudio_logerr2 (status, typ, "Could not set IOProc\n");
         core->outputDeviceID = kAudioDeviceUnknown;
         return -1;
@@ -605,10 +425,10 @@ static int coreaudio_init_out(HWVoiceOut *hw, struct audsettings *as,
 
     /* start Playback */
     if (!isPlaying(core->outputDeviceID)) {
-        status = AudioDeviceStart(core->outputDeviceID, core->ioprocid);
+        status = AudioDeviceStart(core->outputDeviceID, audioDeviceIOProc);
         if (status != kAudioHardwareNoError) {
             coreaudio_logerr2 (status, typ, "Could not start playback\n");
-            AudioDeviceDestroyIOProcID(core->outputDeviceID, core->ioprocid);
+            AudioDeviceRemoveIOProc(core->outputDeviceID, audioDeviceIOProc);
             core->outputDeviceID = kAudioDeviceUnknown;
             return -1;
         }
@@ -623,18 +443,18 @@ static void coreaudio_fini_out (HWVoiceOut *hw)
     int err;
     coreaudioVoiceOut *core = (coreaudioVoiceOut *) hw;
 
-    if (!audio_is_cleaning_up()) {
+    if (!conf.isAtexit) {
         /* stop playback */
         if (isPlaying(core->outputDeviceID)) {
-            status = AudioDeviceStop(core->outputDeviceID, core->ioprocid);
+            status = AudioDeviceStop(core->outputDeviceID, audioDeviceIOProc);
             if (status != kAudioHardwareNoError) {
                 coreaudio_logerr (status, "Could not stop playback\n");
             }
         }
 
         /* remove callback */
-        status = AudioDeviceDestroyIOProcID(core->outputDeviceID,
-                                            core->ioprocid);
+        status = AudioDeviceRemoveIOProc(core->outputDeviceID,
+                                         audioDeviceIOProc);
         if (status != kAudioHardwareNoError) {
             coreaudio_logerr (status, "Could not remove IOProc\n");
         }
@@ -657,7 +477,7 @@ static int coreaudio_ctl_out (HWVoiceOut *hw, int cmd, ...)
     case VOICE_ENABLE:
         /* start playback */
         if (!isPlaying(core->outputDeviceID)) {
-            status = AudioDeviceStart(core->outputDeviceID, core->ioprocid);
+            status = AudioDeviceStart(core->outputDeviceID, audioDeviceIOProc);
             if (status != kAudioHardwareNoError) {
                 coreaudio_logerr (status, "Could not resume playback\n");
             }
@@ -666,10 +486,9 @@ static int coreaudio_ctl_out (HWVoiceOut *hw, int cmd, ...)
 
     case VOICE_DISABLE:
         /* stop playback */
-        if (!audio_is_cleaning_up()) {
+        if (!conf.isAtexit) {
             if (isPlaying(core->outputDeviceID)) {
-                status = AudioDeviceStop(core->outputDeviceID,
-                                         core->ioprocid);
+                status = AudioDeviceStop(core->outputDeviceID, audioDeviceIOProc);
                 if (status != kAudioHardwareNoError) {
                     coreaudio_logerr (status, "Could not pause playback\n");
                 }
@@ -680,35 +499,28 @@ static int coreaudio_ctl_out (HWVoiceOut *hw, int cmd, ...)
     return 0;
 }
 
-static CoreaudioConf glob_conf = {
-    .buffer_frames = 512,
-    .nbuffers = 4,
-};
-
 static void *coreaudio_audio_init (void)
 {
-    CoreaudioConf *conf = g_malloc(sizeof(CoreaudioConf));
-    *conf = glob_conf;
-
-    return conf;
+    atexit(coreaudio_atexit);
+    return &coreaudio_audio_init;
 }
 
 static void coreaudio_audio_fini (void *opaque)
 {
-    g_free(opaque);
+    (void) opaque;
 }
 
 static struct audio_option coreaudio_options[] = {
     {
         .name  = "BUFFER_SIZE",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.buffer_frames,
+        .valp  = &conf.buffer_frames,
         .descr = "Size of the buffer in frames"
     },
     {
         .name  = "BUFFER_COUNT",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.nbuffers,
+        .valp  = &conf.nbuffers,
         .descr = "Number of buffers"
     },
     { /* End of list */ }

audio/dsound_template.h

@@ -67,11 +67,11 @@ static int glue (dsound_lock_, TYPE) (
     LPVOID *p2p,
     DWORD *blen1p,
     DWORD *blen2p,
-    int entire,
-    dsound *s
+    int entire
     )
 {
     HRESULT hr;
+    int i;
     LPVOID p1 = NULL, p2 = NULL;
     DWORD blen1 = 0, blen2 = 0;
     DWORD flag;
@@ -81,18 +81,37 @@ static int glue (dsound_lock_, TYPE) (
 #else
     flag = entire ? DSBLOCK_ENTIREBUFFER : 0;
 #endif
-    hr = glue(IFACE, _Lock)(buf, pos, len, &p1, &blen1, &p2, &blen2, flag);
+    for (i = 0; i < conf.lock_retries; ++i) {
+        hr = glue (IFACE, _Lock) (
+            buf,
+            pos,
+            len,
+            &p1,
+            &blen1,
+            &p2,
+            &blen2,
+            flag
+            );
 
-    if (FAILED (hr)) {
+        if (FAILED (hr)) {
 #ifndef DSBTYPE_IN
-        if (hr == DSERR_BUFFERLOST) {
-            if (glue (dsound_restore_, TYPE) (buf, s)) {
-                dsound_logerr (hr, "Could not lock " NAME "\n");
+            if (hr == DSERR_BUFFERLOST) {
+                if (glue (dsound_restore_, TYPE) (buf)) {
+                    dsound_logerr (hr, "Could not lock " NAME "\n");
+                    goto fail;
+                }
+                continue;
             }
+#endif
+            dsound_logerr (hr, "Could not lock " NAME "\n");
             goto fail;
         }
-#endif
-        dsound_logerr (hr, "Could not lock " NAME "\n");
+
+        break;
+    }
+
+    if (i == conf.lock_retries) {
+        dolog ("%d attempts to lock " NAME " failed\n", i);
         goto fail;
     }
 
@@ -155,19 +174,16 @@ static void dsound_fini_out (HWVoiceOut *hw)
 }
 
 #ifdef DSBTYPE_IN
-static int dsound_init_in(HWVoiceIn *hw, struct audsettings *as,
-                          void *drv_opaque)
+static int dsound_init_in (HWVoiceIn *hw, struct audsettings *as)
 #else
-static int dsound_init_out(HWVoiceOut *hw, struct audsettings *as,
-                           void *drv_opaque)
+static int dsound_init_out (HWVoiceOut *hw, struct audsettings *as)
 #endif
 {
     int err;
     HRESULT hr;
-    dsound *s = drv_opaque;
+    dsound *s = &glob_dsound;
     WAVEFORMATEX wfx;
     struct audsettings obt_as;
-    DSoundConf *conf = &s->conf;
 #ifdef DSBTYPE_IN
     const char *typ = "ADC";
     DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
@@ -194,7 +210,7 @@ static int dsound_init_out(HWVoiceOut *hw, struct audsettings *as,
     bd.dwSize = sizeof (bd);
     bd.lpwfxFormat = &wfx;
 #ifdef DSBTYPE_IN
-    bd.dwBufferBytes = conf->bufsize_in;
+    bd.dwBufferBytes = conf.bufsize_in;
     hr = IDirectSoundCapture_CreateCaptureBuffer (
         s->dsound_capture,
         &bd,
@@ -203,7 +219,7 @@ static int dsound_init_out(HWVoiceOut *hw, struct audsettings *as,
         );
 #else
     bd.dwFlags = DSBCAPS_STICKYFOCUS | DSBCAPS_GETCURRENTPOSITION2;
-    bd.dwBufferBytes = conf->bufsize_out;
+    bd.dwBufferBytes = conf.bufsize_out;
     hr = IDirectSound_CreateSoundBuffer (
         s->dsound,
         &bd,
@@ -253,7 +269,6 @@ static int dsound_init_out(HWVoiceOut *hw, struct audsettings *as,
             );
     }
     hw->samples = bc.dwBufferBytes >> hw->info.shift;
-    ds->s = s;
 
 #ifdef DEBUG_DSOUND
     dolog ("caps %ld, desc %ld\n",

audio/dsoundaudio.c

@@ -26,7 +26,6 @@
  * SEAL 1.07 by Carlos 'pel' Hasan was used as documentation
  */
 
-#include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "audio.h"
 
@@ -42,25 +41,42 @@
 
 /* #define DEBUG_DSOUND */
 
-typedef struct {
+static struct {
+    int lock_retries;
+    int restore_retries;
+    int getstatus_retries;
+    int set_primary;
     int bufsize_in;
     int bufsize_out;
+    struct audsettings settings;
     int latency_millis;
-} DSoundConf;
+} conf = {
+    .lock_retries       = 1,
+    .restore_retries    = 1,
+    .getstatus_retries  = 1,
+    .set_primary        = 0,
+    .bufsize_in         = 16384,
+    .bufsize_out        = 16384,
+    .settings.freq      = 44100,
+    .settings.nchannels = 2,
+    .settings.fmt       = AUD_FMT_S16,
+    .latency_millis     = 10
+};
 
 typedef struct {
     LPDIRECTSOUND dsound;
     LPDIRECTSOUNDCAPTURE dsound_capture;
+    LPDIRECTSOUNDBUFFER dsound_primary_buffer;
     struct audsettings settings;
-    DSoundConf conf;
 } dsound;
 
+static dsound glob_dsound;
+
 typedef struct {
     HWVoiceOut hw;
     LPDIRECTSOUNDBUFFER dsound_buffer;
     DWORD old_pos;
     int first_time;
-    dsound *s;
 #ifdef DEBUG_DSOUND
     DWORD old_ppos;
     DWORD played;
@@ -72,7 +88,6 @@ typedef struct {
     HWVoiceIn hw;
     int first_time;
     LPDIRECTSOUNDCAPTUREBUFFER dsound_capture_buffer;
-    dsound *s;
 } DSoundVoiceIn;
 
 static void dsound_log_hresult (HRESULT hr)
@@ -266,17 +281,29 @@ static void print_wave_format (WAVEFORMATEX *wfx)
 }
 #endif
 
-static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb, dsound *s)
+static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb)
 {
     HRESULT hr;
+    int i;
 
-    hr = IDirectSoundBuffer_Restore (dsb);
+    for (i = 0; i < conf.restore_retries; ++i) {
+        hr = IDirectSoundBuffer_Restore (dsb);
 
-    if (hr != DS_OK) {
-        dsound_logerr (hr, "Could not restore playback buffer\n");
-        return -1;
+        switch (hr) {
+        case DS_OK:
+            return 0;
+
+        case DSERR_BUFFERLOST:
+            continue;
+
+        default:
+            dsound_logerr (hr, "Could not restore playback buffer\n");
+            return -1;
+        }
     }
-    return 0;
+
+    dolog ("%d attempts to restore playback buffer failed\n", i);
+    return -1;
 }
 
 #include "dsound_template.h"
@@ -284,20 +311,25 @@ static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb, dsound *s)
 #include "dsound_template.h"
 #undef DSBTYPE_IN
 
-static int dsound_get_status_out (LPDIRECTSOUNDBUFFER dsb, DWORD *statusp,
-                                  dsound *s)
+static int dsound_get_status_out (LPDIRECTSOUNDBUFFER dsb, DWORD *statusp)
 {
     HRESULT hr;
+    int i;
 
-    hr = IDirectSoundBuffer_GetStatus (dsb, statusp);
-    if (FAILED (hr)) {
-        dsound_logerr (hr, "Could not get playback buffer status\n");
-        return -1;
-    }
+    for (i = 0; i < conf.getstatus_retries; ++i) {
+        hr = IDirectSoundBuffer_GetStatus (dsb, statusp);
+        if (FAILED (hr)) {
+            dsound_logerr (hr, "Could not get playback buffer status\n");
+            return -1;
+        }
 
-    if (*statusp & DSERR_BUFFERLOST) {
-        dsound_restore_out(dsb, s);
-        return -1;
+        if (*statusp & DSERR_BUFFERLOST) {
+            if (dsound_restore_out (dsb)) {
+                return -1;
+            }
+            continue;
+        }
+        break;
     }
 
     return 0;
@@ -344,8 +376,7 @@ static void dsound_write_sample (HWVoiceOut *hw, uint8_t *dst, int dst_len)
     hw->rpos = pos % hw->samples;
 }
 
-static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb,
-                                 dsound *s)
+static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb)
 {
     int err;
     LPVOID p1, p2;
@@ -358,8 +389,7 @@ static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb,
         hw->samples << hw->info.shift,
         &p1, &p2,
         &blen1, &blen2,
-        1,
-        s
+        1
         );
     if (err) {
         return;
@@ -385,9 +415,25 @@ static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb,
     dsound_unlock_out (dsb, p1, p2, blen1, blen2);
 }
 
-static int dsound_open (dsound *s)
+static void dsound_close (dsound *s)
 {
     HRESULT hr;
+
+    if (s->dsound_primary_buffer) {
+        hr = IDirectSoundBuffer_Release (s->dsound_primary_buffer);
+        if (FAILED (hr)) {
+            dsound_logerr (hr, "Could not release primary buffer\n");
+        }
+        s->dsound_primary_buffer = NULL;
+    }
+}
+
+static int dsound_open (dsound *s)
+{
+    int err;
+    HRESULT hr;
+    WAVEFORMATEX wfx;
+    DSBUFFERDESC dsbd;
     HWND hwnd;
 
     hwnd = GetForegroundWindow ();
@@ -403,7 +449,63 @@ static int dsound_open (dsound *s)
         return -1;
     }
 
+    if (!conf.set_primary) {
+        return 0;
+    }
+
+    err = waveformat_from_audio_settings (&wfx, &conf.settings);
+    if (err) {
+        return -1;
+    }
+
+    memset (&dsbd, 0, sizeof (dsbd));
+    dsbd.dwSize = sizeof (dsbd);
+    dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER;
+    dsbd.dwBufferBytes = 0;
+    dsbd.lpwfxFormat = NULL;
+
+    hr = IDirectSound_CreateSoundBuffer (
+        s->dsound,
+        &dsbd,
+        &s->dsound_primary_buffer,
+        NULL
+        );
+    if (FAILED (hr)) {
+        dsound_logerr (hr, "Could not create primary playback buffer\n");
+        return -1;
+    }
+
+    hr = IDirectSoundBuffer_SetFormat (s->dsound_primary_buffer, &wfx);
+    if (FAILED (hr)) {
+        dsound_logerr (hr, "Could not set primary playback buffer format\n");
+    }
+
+    hr = IDirectSoundBuffer_GetFormat (
+        s->dsound_primary_buffer,
+        &wfx,
+        sizeof (wfx),
+        NULL
+        );
+    if (FAILED (hr)) {
+        dsound_logerr (hr, "Could not get primary playback buffer format\n");
+        goto fail0;
+    }
+
+#ifdef DEBUG_DSOUND
+    dolog ("Primary\n");
+    print_wave_format (&wfx);
+#endif
+
+    err = waveformat_to_audio_settings (&wfx, &s->settings);
+    if (err) {
+        goto fail0;
+    }
+
     return 0;
+
+ fail0:
+    dsound_close (s);
+    return -1;
 }
 
 static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...)
@@ -412,7 +514,6 @@ static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...)
     DWORD status;
     DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
     LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer;
-    dsound *s = ds->s;
 
     if (!dsb) {
         dolog ("Attempt to control voice without a buffer\n");
@@ -421,7 +522,7 @@ static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...)
 
     switch (cmd) {
     case VOICE_ENABLE:
-        if (dsound_get_status_out (dsb, &status, s)) {
+        if (dsound_get_status_out (dsb, &status)) {
             return -1;
         }
 
@@ -430,7 +531,7 @@ static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...)
             return 0;
         }
 
-        dsound_clear_sample (hw, dsb, s);
+        dsound_clear_sample (hw, dsb);
 
         hr = IDirectSoundBuffer_Play (dsb, 0, 0, DSBPLAY_LOOPING);
         if (FAILED (hr)) {
@@ -440,7 +541,7 @@ static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...)
         break;
 
     case VOICE_DISABLE:
-        if (dsound_get_status_out (dsb, &status, s)) {
+        if (dsound_get_status_out (dsb, &status)) {
             return -1;
         }
 
@@ -477,8 +578,6 @@ static int dsound_run_out (HWVoiceOut *hw, int live)
     DWORD wpos, ppos, old_pos;
     LPVOID p1, p2;
     int bufsize;
-    dsound *s = ds->s;
-    DSoundConf *conf = &s->conf;
 
     if (!dsb) {
         dolog ("Attempt to run empty with playback buffer\n");
@@ -501,14 +600,14 @@ static int dsound_run_out (HWVoiceOut *hw, int live)
     len = live << hwshift;
 
     if (ds->first_time) {
-        if (conf->latency_millis) {
+        if (conf.latency_millis) {
             DWORD cur_blat;
 
             cur_blat = audio_ring_dist (wpos, ppos, bufsize);
             ds->first_time = 0;
             old_pos = wpos;
             old_pos +=
-                millis_to_bytes (&hw->info, conf->latency_millis) - cur_blat;
+                millis_to_bytes (&hw->info, conf.latency_millis) - cur_blat;
             old_pos %= bufsize;
             old_pos &= ~hw->info.align;
         }
@@ -564,8 +663,7 @@ static int dsound_run_out (HWVoiceOut *hw, int live)
         len,
         &p1, &p2,
         &blen1, &blen2,
-        0,
-        s
+        0
         );
     if (err) {
         return 0;
@@ -668,7 +766,6 @@ static int dsound_run_in (HWVoiceIn *hw)
     DWORD cpos, rpos;
     LPVOID p1, p2;
     int hwshift;
-    dsound *s = ds->s;
 
     if (!dscb) {
         dolog ("Attempt to run without capture buffer\n");
@@ -723,8 +820,7 @@ static int dsound_run_in (HWVoiceIn *hw)
         &p2,
         &blen1,
         &blen2,
-        0,
-        s
+        0
         );
     if (err) {
         return 0;
@@ -735,11 +831,11 @@ static int dsound_run_in (HWVoiceIn *hw)
     decr = len1 + len2;
 
     if (p1 && len1) {
-        hw->conv (hw->conv_buf + hw->wpos, p1, len1);
+        hw->conv (hw->conv_buf + hw->wpos, p1, len1, &nominal_volume);
     }
 
     if (p2 && len2) {
-        hw->conv (hw->conv_buf, p2, len2);
+        hw->conv (hw->conv_buf, p2, len2, &nominal_volume);
     }
 
     dsound_unlock_in (dscb, p1, p2, blen1, blen2);
@@ -747,19 +843,12 @@ static int dsound_run_in (HWVoiceIn *hw)
     return decr;
 }
 
-static DSoundConf glob_conf = {
-    .bufsize_in         = 16384,
-    .bufsize_out        = 16384,
-    .latency_millis     = 10
-};
-
 static void dsound_audio_fini (void *opaque)
 {
     HRESULT hr;
     dsound *s = opaque;
 
     if (!s->dsound) {
-        g_free(s);
         return;
     }
 
@@ -770,7 +859,6 @@ static void dsound_audio_fini (void *opaque)
     s->dsound = NULL;
 
     if (!s->dsound_capture) {
-        g_free(s);
         return;
     }
 
@@ -779,21 +867,17 @@ static void dsound_audio_fini (void *opaque)
         dsound_logerr (hr, "Could not release DirectSoundCapture\n");
     }
     s->dsound_capture = NULL;
-
-    g_free(s);
 }
 
 static void *dsound_audio_init (void)
 {
     int err;
     HRESULT hr;
-    dsound *s = g_malloc0(sizeof(dsound));
+    dsound *s = &glob_dsound;
 
-    s->conf = glob_conf;
     hr = CoInitialize (NULL);
     if (FAILED (hr)) {
         dsound_logerr (hr, "Could not initialize COM\n");
-        g_free(s);
         return NULL;
     }
 
@@ -806,7 +890,6 @@ static void *dsound_audio_init (void)
         );
     if (FAILED (hr)) {
         dsound_logerr (hr, "Could not create DirectSound instance\n");
-        g_free(s);
         return NULL;
     }
 
@@ -818,7 +901,7 @@ static void *dsound_audio_init (void)
         if (FAILED (hr)) {
             dsound_logerr (hr, "Could not release DirectSound\n");
         }
-        g_free(s);
+        s->dsound = NULL;
         return NULL;
     }
 
@@ -855,22 +938,64 @@ static void *dsound_audio_init (void)
 }
 
 static struct audio_option dsound_options[] = {
+    {
+        .name  = "LOCK_RETRIES",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.lock_retries,
+        .descr = "Number of times to attempt locking the buffer"
+    },
+    {
+        .name  = "RESTOURE_RETRIES",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.restore_retries,
+        .descr = "Number of times to attempt restoring the buffer"
+    },
+    {
+        .name  = "GETSTATUS_RETRIES",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.getstatus_retries,
+        .descr = "Number of times to attempt getting status of the buffer"
+    },
+    {
+        .name  = "SET_PRIMARY",
+        .tag   = AUD_OPT_BOOL,
+        .valp  = &conf.set_primary,
+        .descr = "Set the parameters of primary buffer"
+    },
     {
         .name  = "LATENCY_MILLIS",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.latency_millis,
+        .valp  = &conf.latency_millis,
         .descr = "(undocumented)"
     },
+    {
+        .name  = "PRIMARY_FREQ",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.settings.freq,
+        .descr = "Primary buffer frequency"
+    },
+    {
+        .name  = "PRIMARY_CHANNELS",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.settings.nchannels,
+        .descr = "Primary buffer number of channels (1 - mono, 2 - stereo)"
+    },
+    {
+        .name  = "PRIMARY_FMT",
+        .tag   = AUD_OPT_FMT,
+        .valp  = &conf.settings.fmt,
+        .descr = "Primary buffer format"
+    },
     {
         .name  = "BUFSIZE_OUT",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.bufsize_out,
+        .valp  = &conf.bufsize_out,
         .descr = "(undocumented)"
     },
     {
         .name  = "BUFSIZE_IN",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.bufsize_in,
+        .valp  = &conf.bufsize_in,
         .descr = "(undocumented)"
     },
     { /* End of list */ }

audio/esdaudio.c

@@ -0,0 +1,604 @@
+/*
+ * QEMU ESD audio driver
+ *
+ * Copyright (c) 2006 Frederick Reeve (brushed up by malc)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <esd.h>
+#include "qemu-common.h"
+#include "audio.h"
+#include <signal.h>
+
+#define AUDIO_CAP "esd"
+#include "audio_int.h"
+#include "audio_pt_int.h"
+
+typedef struct {
+    HWVoiceOut hw;
+    int done;
+    int live;
+    int decr;
+    int rpos;
+    void *pcm_buf;
+    int fd;
+    struct audio_pt pt;
+} ESDVoiceOut;
+
+typedef struct {
+    HWVoiceIn hw;
+    int done;
+    int dead;
+    int incr;
+    int wpos;
+    void *pcm_buf;
+    int fd;
+    struct audio_pt pt;
+} ESDVoiceIn;
+
+static struct {
+    int samples;
+    int divisor;
+    char *dac_host;
+    char *adc_host;
+} conf = {
+    .samples = 1024,
+    .divisor = 2,
+};
+
+static void GCC_FMT_ATTR (2, 3) qesd_logerr (int err, const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start (ap, fmt);
+    AUD_vlog (AUDIO_CAP, fmt, ap);
+    va_end (ap);
+
+    AUD_log (AUDIO_CAP, "Reason: %s\n", strerror (err));
+}
+
+/* playback */
+static void *qesd_thread_out (void *arg)
+{
+    ESDVoiceOut *esd = arg;
+    HWVoiceOut *hw = &esd->hw;
+    int threshold;
+
+    threshold = conf.divisor ? hw->samples / conf.divisor : 0;
+
+    if (audio_pt_lock (&esd->pt, AUDIO_FUNC)) {
+        return NULL;
+    }
+
+    for (;;) {
+        int decr, to_mix, rpos;
+
+        for (;;) {
+            if (esd->done) {
+                goto exit;
+            }
+
+            if (esd->live > threshold) {
+                break;
+            }
+
+            if (audio_pt_wait (&esd->pt, AUDIO_FUNC)) {
+                goto exit;
+            }
+        }
+
+        decr = to_mix = esd->live;
+        rpos = hw->rpos;
+
+        if (audio_pt_unlock (&esd->pt, AUDIO_FUNC)) {
+            return NULL;
+        }
+
+        while (to_mix) {
+            ssize_t written;
+            int chunk = audio_MIN (to_mix, hw->samples - rpos);
+            struct st_sample *src = hw->mix_buf + rpos;
+
+            hw->clip (esd->pcm_buf, src, chunk);
+
+        again:
+            written = write (esd->fd, esd->pcm_buf, chunk << hw->info.shift);
+            if (written == -1) {
+                if (errno == EINTR || errno == EAGAIN) {
+                    goto again;
+                }
+                qesd_logerr (errno, "write failed\n");
+                return NULL;
+            }
+
+            if (written != chunk << hw->info.shift) {
+                int wsamples = written >> hw->info.shift;
+                int wbytes = wsamples << hw->info.shift;
+                if (wbytes != written) {
+                    dolog ("warning: Misaligned write %d (requested %zd), "
+                           "alignment %d\n",
+                           wbytes, written, hw->info.align + 1);
+                }
+                to_mix -= wsamples;
+                rpos = (rpos + wsamples) % hw->samples;
+                break;
+            }
+
+            rpos = (rpos + chunk) % hw->samples;
+            to_mix -= chunk;
+        }
+
+        if (audio_pt_lock (&esd->pt, AUDIO_FUNC)) {
+            return NULL;
+        }
+
+        esd->rpos = rpos;
+        esd->live -= decr;
+        esd->decr += decr;
+    }
+
+ exit:
+    audio_pt_unlock (&esd->pt, AUDIO_FUNC);
+    return NULL;
+}
+
+static int qesd_run_out (HWVoiceOut *hw, int live)
+{
+    int decr;
+    ESDVoiceOut *esd = (ESDVoiceOut *) hw;
+
+    if (audio_pt_lock (&esd->pt, AUDIO_FUNC)) {
+        return 0;
+    }
+
+    decr = audio_MIN (live, esd->decr);
+    esd->decr -= decr;
+    esd->live = live - decr;
+    hw->rpos = esd->rpos;
+    if (esd->live > 0) {
+        audio_pt_unlock_and_signal (&esd->pt, AUDIO_FUNC);
+    }
+    else {
+        audio_pt_unlock (&esd->pt, AUDIO_FUNC);
+    }
+    return decr;
+}
+
+static int qesd_write (SWVoiceOut *sw, void *buf, int len)
+{
+    return audio_pcm_sw_write (sw, buf, len);
+}
+
+static int qesd_init_out (HWVoiceOut *hw, struct audsettings *as)
+{
+    ESDVoiceOut *esd = (ESDVoiceOut *) hw;
+    struct audsettings obt_as = *as;
+    int esdfmt = ESD_STREAM | ESD_PLAY;
+    int err;
+    sigset_t set, old_set;
+
+    sigfillset (&set);
+
+    esdfmt |= (as->nchannels == 2) ? ESD_STEREO : ESD_MONO;
+    switch (as->fmt) {
+    case AUD_FMT_S8:
+    case AUD_FMT_U8:
+        esdfmt |= ESD_BITS8;
+        obt_as.fmt = AUD_FMT_U8;
+        break;
+
+    case AUD_FMT_S32:
+    case AUD_FMT_U32:
+        dolog ("Will use 16 instead of 32 bit samples\n");
+
+    case AUD_FMT_S16:
+    case AUD_FMT_U16:
+    deffmt:
+        esdfmt |= ESD_BITS16;
+        obt_as.fmt = AUD_FMT_S16;
+        break;
+
+    default:
+        dolog ("Internal logic error: Bad audio format %d\n", as->fmt);
+        goto deffmt;
+
+    }
+    obt_as.endianness = AUDIO_HOST_ENDIANNESS;
+
+    audio_pcm_init_info (&hw->info, &obt_as);
+
+    hw->samples = conf.samples;
+    esd->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
+    if (!esd->pcm_buf) {
+        dolog ("Could not allocate buffer (%d bytes)\n",
+               hw->samples << hw->info.shift);
+        return -1;
+    }
+
+    esd->fd = -1;
+    err = pthread_sigmask (SIG_BLOCK, &set, &old_set);
+    if (err) {
+        qesd_logerr (err, "pthread_sigmask failed\n");
+        goto fail1;
+    }
+
+    esd->fd = esd_play_stream (esdfmt, as->freq, conf.dac_host, NULL);
+    if (esd->fd < 0) {
+        qesd_logerr (errno, "esd_play_stream failed\n");
+        goto fail2;
+    }
+
+    if (audio_pt_init (&esd->pt, qesd_thread_out, esd, AUDIO_CAP, AUDIO_FUNC)) {
+        goto fail3;
+    }
+
+    err = pthread_sigmask (SIG_SETMASK, &old_set, NULL);
+    if (err) {
+        qesd_logerr (err, "pthread_sigmask(restore) failed\n");
+    }
+
+    return 0;
+
+ fail3:
+    if (close (esd->fd)) {
+        qesd_logerr (errno, "%s: close on esd socket(%d) failed\n",
+                     AUDIO_FUNC, esd->fd);
+    }
+    esd->fd = -1;
+
+ fail2:
+    err = pthread_sigmask (SIG_SETMASK, &old_set, NULL);
+    if (err) {
+        qesd_logerr (err, "pthread_sigmask(restore) failed\n");
+    }
+
+ fail1:
+    qemu_free (esd->pcm_buf);
+    esd->pcm_buf = NULL;
+    return -1;
+}
+
+static void qesd_fini_out (HWVoiceOut *hw)
+{
+    void *ret;
+    ESDVoiceOut *esd = (ESDVoiceOut *) hw;
+
+    audio_pt_lock (&esd->pt, AUDIO_FUNC);
+    esd->done = 1;
+    audio_pt_unlock_and_signal (&esd->pt, AUDIO_FUNC);
+    audio_pt_join (&esd->pt, &ret, AUDIO_FUNC);
+
+    if (esd->fd >= 0) {
+        if (close (esd->fd)) {
+            qesd_logerr (errno, "failed to close esd socket\n");
+        }
+        esd->fd = -1;
+    }
+
+    audio_pt_fini (&esd->pt, AUDIO_FUNC);
+
+    qemu_free (esd->pcm_buf);
+    esd->pcm_buf = NULL;
+}
+
+static int qesd_ctl_out (HWVoiceOut *hw, int cmd, ...)
+{
+    (void) hw;
+    (void) cmd;
+    return 0;
+}
+
+/* capture */
+static void *qesd_thread_in (void *arg)
+{
+    ESDVoiceIn *esd = arg;
+    HWVoiceIn *hw = &esd->hw;
+    int threshold;
+
+    threshold = conf.divisor ? hw->samples / conf.divisor : 0;
+
+    if (audio_pt_lock (&esd->pt, AUDIO_FUNC)) {
+        return NULL;
+    }
+
+    for (;;) {
+        int incr, to_grab, wpos;
+
+        for (;;) {
+            if (esd->done) {
+                goto exit;
+            }
+
+            if (esd->dead > threshold) {
+                break;
+            }
+
+            if (audio_pt_wait (&esd->pt, AUDIO_FUNC)) {
+                goto exit;
+            }
+        }
+
+        incr = to_grab = esd->dead;
+        wpos = hw->wpos;
+
+        if (audio_pt_unlock (&esd->pt, AUDIO_FUNC)) {
+            return NULL;
+        }
+
+        while (to_grab) {
+            ssize_t nread;
+            int chunk = audio_MIN (to_grab, hw->samples - wpos);
+            void *buf = advance (esd->pcm_buf, wpos);
+
+        again:
+            nread = read (esd->fd, buf, chunk << hw->info.shift);
+            if (nread == -1) {
+                if (errno == EINTR || errno == EAGAIN) {
+                    goto again;
+                }
+                qesd_logerr (errno, "read failed\n");
+                return NULL;
+            }
+
+            if (nread != chunk << hw->info.shift) {
+                int rsamples = nread >> hw->info.shift;
+                int rbytes = rsamples << hw->info.shift;
+                if (rbytes != nread) {
+                    dolog ("warning: Misaligned write %d (requested %zd), "
+                           "alignment %d\n",
+                           rbytes, nread, hw->info.align + 1);
+                }
+                to_grab -= rsamples;
+                wpos = (wpos + rsamples) % hw->samples;
+                break;
+            }
+
+            hw->conv (hw->conv_buf + wpos, buf, nread >> hw->info.shift,
+                      &nominal_volume);
+            wpos = (wpos + chunk) % hw->samples;
+            to_grab -= chunk;
+        }
+
+        if (audio_pt_lock (&esd->pt, AUDIO_FUNC)) {
+            return NULL;
+        }
+
+        esd->wpos = wpos;
+        esd->dead -= incr;
+        esd->incr += incr;
+    }
+
+ exit:
+    audio_pt_unlock (&esd->pt, AUDIO_FUNC);
+    return NULL;
+}
+
+static int qesd_run_in (HWVoiceIn *hw)
+{
+    int live, incr, dead;
+    ESDVoiceIn *esd = (ESDVoiceIn *) hw;
+
+    if (audio_pt_lock (&esd->pt, AUDIO_FUNC)) {
+        return 0;
+    }
+
+    live = audio_pcm_hw_get_live_in (hw);
+    dead = hw->samples - live;
+    incr = audio_MIN (dead, esd->incr);
+    esd->incr -= incr;
+    esd->dead = dead - incr;
+    hw->wpos = esd->wpos;
+    if (esd->dead > 0) {
+        audio_pt_unlock_and_signal (&esd->pt, AUDIO_FUNC);
+    }
+    else {
+        audio_pt_unlock (&esd->pt, AUDIO_FUNC);
+    }
+    return incr;
+}
+
+static int qesd_read (SWVoiceIn *sw, void *buf, int len)
+{
+    return audio_pcm_sw_read (sw, buf, len);
+}
+
+static int qesd_init_in (HWVoiceIn *hw, struct audsettings *as)
+{
+    ESDVoiceIn *esd = (ESDVoiceIn *) hw;
+    struct audsettings obt_as = *as;
+    int esdfmt = ESD_STREAM | ESD_RECORD;
+    int err;
+    sigset_t set, old_set;
+
+    sigfillset (&set);
+
+    esdfmt |= (as->nchannels == 2) ? ESD_STEREO : ESD_MONO;
+    switch (as->fmt) {
+    case AUD_FMT_S8:
+    case AUD_FMT_U8:
+        esdfmt |= ESD_BITS8;
+        obt_as.fmt = AUD_FMT_U8;
+        break;
+
+    case AUD_FMT_S16:
+    case AUD_FMT_U16:
+        esdfmt |= ESD_BITS16;
+        obt_as.fmt = AUD_FMT_S16;
+        break;
+
+    case AUD_FMT_S32:
+    case AUD_FMT_U32:
+        dolog ("Will use 16 instead of 32 bit samples\n");
+        esdfmt |= ESD_BITS16;
+        obt_as.fmt = AUD_FMT_S16;
+        break;
+    }
+    obt_as.endianness = AUDIO_HOST_ENDIANNESS;
+
+    audio_pcm_init_info (&hw->info, &obt_as);
+
+    hw->samples = conf.samples;
+    esd->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
+    if (!esd->pcm_buf) {
+        dolog ("Could not allocate buffer (%d bytes)\n",
+               hw->samples << hw->info.shift);
+        return -1;
+    }
+
+    esd->fd = -1;
+
+    err = pthread_sigmask (SIG_BLOCK, &set, &old_set);
+    if (err) {
+        qesd_logerr (err, "pthread_sigmask failed\n");
+        goto fail1;
+    }
+
+    esd->fd = esd_record_stream (esdfmt, as->freq, conf.adc_host, NULL);
+    if (esd->fd < 0) {
+        qesd_logerr (errno, "esd_record_stream failed\n");
+        goto fail2;
+    }
+
+    if (audio_pt_init (&esd->pt, qesd_thread_in, esd, AUDIO_CAP, AUDIO_FUNC)) {
+        goto fail3;
+    }
+
+    err = pthread_sigmask (SIG_SETMASK, &old_set, NULL);
+    if (err) {
+        qesd_logerr (err, "pthread_sigmask(restore) failed\n");
+    }
+
+    return 0;
+
+ fail3:
+    if (close (esd->fd)) {
+        qesd_logerr (errno, "%s: close on esd socket(%d) failed\n",
+                     AUDIO_FUNC, esd->fd);
+    }
+    esd->fd = -1;
+
+ fail2:
+    err = pthread_sigmask (SIG_SETMASK, &old_set, NULL);
+    if (err) {
+        qesd_logerr (err, "pthread_sigmask(restore) failed\n");
+    }
+
+ fail1:
+    qemu_free (esd->pcm_buf);
+    esd->pcm_buf = NULL;
+    return -1;
+}
+
+static void qesd_fini_in (HWVoiceIn *hw)
+{
+    void *ret;
+    ESDVoiceIn *esd = (ESDVoiceIn *) hw;
+
+    audio_pt_lock (&esd->pt, AUDIO_FUNC);
+    esd->done = 1;
+    audio_pt_unlock_and_signal (&esd->pt, AUDIO_FUNC);
+    audio_pt_join (&esd->pt, &ret, AUDIO_FUNC);
+
+    if (esd->fd >= 0) {
+        if (close (esd->fd)) {
+            qesd_logerr (errno, "failed to close esd socket\n");
+        }
+        esd->fd = -1;
+    }
+
+    audio_pt_fini (&esd->pt, AUDIO_FUNC);
+
+    qemu_free (esd->pcm_buf);
+    esd->pcm_buf = NULL;
+}
+
+static int qesd_ctl_in (HWVoiceIn *hw, int cmd, ...)
+{
+    (void) hw;
+    (void) cmd;
+    return 0;
+}
+
+/* common */
+static void *qesd_audio_init (void)
+{
+    return &conf;
+}
+
+static void qesd_audio_fini (void *opaque)
+{
+    (void) opaque;
+    ldebug ("esd_fini");
+}
+
+struct audio_option qesd_options[] = {
+    {
+        .name  = "SAMPLES",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.samples,
+        .descr = "buffer size in samples"
+    },
+    {
+        .name  = "DIVISOR",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.divisor,
+        .descr = "threshold divisor"
+    },
+    {
+        .name  = "DAC_HOST",
+        .tag   = AUD_OPT_STR,
+        .valp  = &conf.dac_host,
+        .descr = "playback host"
+    },
+    {
+        .name  = "ADC_HOST",
+        .tag   = AUD_OPT_STR,
+        .valp  = &conf.adc_host,
+        .descr = "capture host"
+    },
+    { /* End of list */ }
+};
+
+static struct audio_pcm_ops qesd_pcm_ops = {
+    .init_out = qesd_init_out,
+    .fini_out = qesd_fini_out,
+    .run_out  = qesd_run_out,
+    .write    = qesd_write,
+    .ctl_out  = qesd_ctl_out,
+
+    .init_in  = qesd_init_in,
+    .fini_in  = qesd_fini_in,
+    .run_in   = qesd_run_in,
+    .read     = qesd_read,
+    .ctl_in   = qesd_ctl_in,
+};
+
+struct audio_driver esd_audio_driver = {
+    .name           = "esd",
+    .descr          = "http://en.wikipedia.org/wiki/Esound",
+    .options        = qesd_options,
+    .init           = qesd_audio_init,
+    .fini           = qesd_audio_fini,
+    .pcm_ops        = &qesd_pcm_ops,
+    .can_be_default = 0,
+    .max_voices_out = INT_MAX,
+    .max_voices_in  = INT_MAX,
+    .voice_size_out = sizeof (ESDVoiceOut),
+    .voice_size_in  = sizeof (ESDVoiceIn)
+};

audio/fmodaudio.c

@@ -0,0 +1,687 @@
+/*
+ * QEMU FMOD audio driver
+ *
+ * Copyright (c) 2004-2005 Vassili Karpov (malc)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <fmod.h>
+#include <fmod_errors.h>
+#include "qemu-common.h"
+#include "audio.h"
+
+#define AUDIO_CAP "fmod"
+#include "audio_int.h"
+
+typedef struct FMODVoiceOut {
+    HWVoiceOut hw;
+    unsigned int old_pos;
+    FSOUND_SAMPLE *fmod_sample;
+    int channel;
+} FMODVoiceOut;
+
+typedef struct FMODVoiceIn {
+    HWVoiceIn hw;
+    FSOUND_SAMPLE *fmod_sample;
+} FMODVoiceIn;
+
+static struct {
+    const char *drvname;
+    int nb_samples;
+    int freq;
+    int nb_channels;
+    int bufsize;
+    int broken_adc;
+} conf = {
+    .nb_samples  = 2048 * 2,
+    .freq        = 44100,
+    .nb_channels = 2,
+};
+
+static void GCC_FMT_ATTR (1, 2) fmod_logerr (const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start (ap, fmt);
+    AUD_vlog (AUDIO_CAP, fmt, ap);
+    va_end (ap);
+
+    AUD_log (AUDIO_CAP, "Reason: %s\n",
+             FMOD_ErrorString (FSOUND_GetError ()));
+}
+
+static void GCC_FMT_ATTR (2, 3) fmod_logerr2 (
+    const char *typ,
+    const char *fmt,
+    ...
+    )
+{
+    va_list ap;
+
+    AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
+
+    va_start (ap, fmt);
+    AUD_vlog (AUDIO_CAP, fmt, ap);
+    va_end (ap);
+
+    AUD_log (AUDIO_CAP, "Reason: %s\n",
+             FMOD_ErrorString (FSOUND_GetError ()));
+}
+
+static int fmod_write (SWVoiceOut *sw, void *buf, int len)
+{
+    return audio_pcm_sw_write (sw, buf, len);
+}
+
+static void fmod_clear_sample (FMODVoiceOut *fmd)
+{
+    HWVoiceOut *hw = &fmd->hw;
+    int status;
+    void *p1 = 0, *p2 = 0;
+    unsigned int len1 = 0, len2 = 0;
+
+    status = FSOUND_Sample_Lock (
+        fmd->fmod_sample,
+        0,
+        hw->samples << hw->info.shift,
+        &p1,
+        &p2,
+        &len1,
+        &len2
+        );
+
+    if (!status) {
+        fmod_logerr ("Failed to lock sample\n");
+        return;
+    }
+
+    if ((len1 & hw->info.align) || (len2 & hw->info.align)) {
+        dolog ("Lock returned misaligned length %d, %d, alignment %d\n",
+               len1, len2, hw->info.align + 1);
+        goto fail;
+    }
+
+    if ((len1 + len2) - (hw->samples << hw->info.shift)) {
+        dolog ("Lock returned incomplete length %d, %d\n",
+               len1 + len2, hw->samples << hw->info.shift);
+        goto fail;
+    }
+
+    audio_pcm_info_clear_buf (&hw->info, p1, hw->samples);
+
+ fail:
+    status = FSOUND_Sample_Unlock (fmd->fmod_sample, p1, p2, len1, len2);
+    if (!status) {
+        fmod_logerr ("Failed to unlock sample\n");
+    }
+}
+
+static void fmod_write_sample (HWVoiceOut *hw, uint8_t *dst, int dst_len)
+{
+    int src_len1 = dst_len;
+    int src_len2 = 0;
+    int pos = hw->rpos + dst_len;
+    struct st_sample *src1 = hw->mix_buf + hw->rpos;
+    struct st_sample *src2 = NULL;
+
+    if (pos > hw->samples) {
+        src_len1 = hw->samples - hw->rpos;
+        src2 = hw->mix_buf;
+        src_len2 = dst_len - src_len1;
+        pos = src_len2;
+    }
+
+    if (src_len1) {
+        hw->clip (dst, src1, src_len1);
+    }
+
+    if (src_len2) {
+        dst = advance (dst, src_len1 << hw->info.shift);
+        hw->clip (dst, src2, src_len2);
+    }
+
+    hw->rpos = pos % hw->samples;
+}
+
+static int fmod_unlock_sample (FSOUND_SAMPLE *sample, void *p1, void *p2,
+                               unsigned int blen1, unsigned int blen2)
+{
+    int status = FSOUND_Sample_Unlock (sample, p1, p2, blen1, blen2);
+    if (!status) {
+        fmod_logerr ("Failed to unlock sample\n");
+        return -1;
+    }
+    return 0;
+}
+
+static int fmod_lock_sample (
+    FSOUND_SAMPLE *sample,
+    struct audio_pcm_info *info,
+    int pos,
+    int len,
+    void **p1,
+    void **p2,
+    unsigned int *blen1,
+    unsigned int *blen2
+    )
+{
+    int status;
+
+    status = FSOUND_Sample_Lock (
+        sample,
+        pos << info->shift,
+        len << info->shift,
+        p1,
+        p2,
+        blen1,
+        blen2
+        );
+
+    if (!status) {
+        fmod_logerr ("Failed to lock sample\n");
+        return -1;
+    }
+
+    if ((*blen1 & info->align) || (*blen2 & info->align)) {
+        dolog ("Lock returned misaligned length %d, %d, alignment %d\n",
+               *blen1, *blen2, info->align + 1);
+
+        fmod_unlock_sample (sample, *p1, *p2, *blen1, *blen2);
+
+        *p1 = NULL - 1;
+        *p2 = NULL - 1;
+        *blen1 = ~0U;
+        *blen2 = ~0U;
+        return -1;
+    }
+
+    if (!*p1 && *blen1) {
+        dolog ("warning: !p1 && blen1=%d\n", *blen1);
+        *blen1 = 0;
+    }
+
+    if (!p2 && *blen2) {
+        dolog ("warning: !p2 && blen2=%d\n", *blen2);
+        *blen2 = 0;
+    }
+
+    return 0;
+}
+
+static int fmod_run_out (HWVoiceOut *hw, int live)
+{
+    FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
+    int decr;
+    void *p1 = 0, *p2 = 0;
+    unsigned int blen1 = 0, blen2 = 0;
+    unsigned int len1 = 0, len2 = 0;
+
+    if (!hw->pending_disable) {
+        return 0;
+    }
+
+    decr = live;
+
+    if (fmd->channel >= 0) {
+        int len = decr;
+        int old_pos = fmd->old_pos;
+        int ppos = FSOUND_GetCurrentPosition (fmd->channel);
+
+        if (ppos == old_pos || !ppos) {
+            return 0;
+        }
+
+        if ((old_pos < ppos) && ((old_pos + len) > ppos)) {
+            len = ppos - old_pos;
+        }
+        else {
+            if ((old_pos > ppos) && ((old_pos + len) > (ppos + hw->samples))) {
+                len = hw->samples - old_pos + ppos;
+            }
+        }
+        decr = len;
+
+        if (audio_bug (AUDIO_FUNC, decr < 0)) {
+            dolog ("decr=%d live=%d ppos=%d old_pos=%d len=%d\n",
+                   decr, live, ppos, old_pos, len);
+            return 0;
+        }
+    }
+
+
+    if (!decr) {
+        return 0;
+    }
+
+    if (fmod_lock_sample (fmd->fmod_sample, &fmd->hw.info,
+                          fmd->old_pos, decr,
+                          &p1, &p2,
+                          &blen1, &blen2)) {
+        return 0;
+    }
+
+    len1 = blen1 >> hw->info.shift;
+    len2 = blen2 >> hw->info.shift;
+    ldebug ("%p %p %d %d %d %d\n", p1, p2, len1, len2, blen1, blen2);
+    decr = len1 + len2;
+
+    if (p1 && len1) {
+        fmod_write_sample (hw, p1, len1);
+    }
+
+    if (p2 && len2) {
+        fmod_write_sample (hw, p2, len2);
+    }
+
+    fmod_unlock_sample (fmd->fmod_sample, p1, p2, blen1, blen2);
+
+    fmd->old_pos = (fmd->old_pos + decr) % hw->samples;
+    return decr;
+}
+
+static int aud_to_fmodfmt (audfmt_e fmt, int stereo)
+{
+    int mode = FSOUND_LOOP_NORMAL;
+
+    switch (fmt) {
+    case AUD_FMT_S8:
+        mode |= FSOUND_SIGNED | FSOUND_8BITS;
+        break;
+
+    case AUD_FMT_U8:
+        mode |= FSOUND_UNSIGNED | FSOUND_8BITS;
+        break;
+
+    case AUD_FMT_S16:
+        mode |= FSOUND_SIGNED | FSOUND_16BITS;
+        break;
+
+    case AUD_FMT_U16:
+        mode |= FSOUND_UNSIGNED | FSOUND_16BITS;
+        break;
+
+    default:
+        dolog ("Internal logic error: Bad audio format %d\n", fmt);
+#ifdef DEBUG_FMOD
+        abort ();
+#endif
+        mode |= FSOUND_8BITS;
+    }
+    mode |= stereo ? FSOUND_STEREO : FSOUND_MONO;
+    return mode;
+}
+
+static void fmod_fini_out (HWVoiceOut *hw)
+{
+    FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
+
+    if (fmd->fmod_sample) {
+        FSOUND_Sample_Free (fmd->fmod_sample);
+        fmd->fmod_sample = 0;
+
+        if (fmd->channel >= 0) {
+            FSOUND_StopSound (fmd->channel);
+        }
+    }
+}
+
+static int fmod_init_out (HWVoiceOut *hw, struct audsettings *as)
+{
+    int bits16, mode, channel;
+    FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
+    struct audsettings obt_as = *as;
+
+    mode = aud_to_fmodfmt (as->fmt, as->nchannels == 2 ? 1 : 0);
+    fmd->fmod_sample = FSOUND_Sample_Alloc (
+        FSOUND_FREE,            /* index */
+        conf.nb_samples,        /* length */
+        mode,                   /* mode */
+        as->freq,               /* freq */
+        255,                    /* volume */
+        128,                    /* pan */
+        255                     /* priority */
+        );
+
+    if (!fmd->fmod_sample) {
+        fmod_logerr2 ("DAC", "Failed to allocate FMOD sample\n");
+        return -1;
+    }
+
+    channel = FSOUND_PlaySoundEx (FSOUND_FREE, fmd->fmod_sample, 0, 1);
+    if (channel < 0) {
+        fmod_logerr2 ("DAC", "Failed to start playing sound\n");
+        FSOUND_Sample_Free (fmd->fmod_sample);
+        return -1;
+    }
+    fmd->channel = channel;
+
+    /* FMOD always operates on little endian frames? */
+    obt_as.endianness = 0;
+    audio_pcm_init_info (&hw->info, &obt_as);
+    bits16 = (mode & FSOUND_16BITS) != 0;
+    hw->samples = conf.nb_samples;
+    return 0;
+}
+
+static int fmod_ctl_out (HWVoiceOut *hw, int cmd, ...)
+{
+    int status;
+    FMODVoiceOut *fmd = (FMODVoiceOut *) hw;
+
+    switch (cmd) {
+    case VOICE_ENABLE:
+        fmod_clear_sample (fmd);
+        status = FSOUND_SetPaused (fmd->channel, 0);
+        if (!status) {
+            fmod_logerr ("Failed to resume channel %d\n", fmd->channel);
+        }
+        break;
+
+    case VOICE_DISABLE:
+        status = FSOUND_SetPaused (fmd->channel, 1);
+        if (!status) {
+            fmod_logerr ("Failed to pause channel %d\n", fmd->channel);
+        }
+        break;
+    }
+    return 0;
+}
+
+static int fmod_init_in (HWVoiceIn *hw, struct audsettings *as)
+{
+    int bits16, mode;
+    FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
+    struct audsettings obt_as = *as;
+
+    if (conf.broken_adc) {
+        return -1;
+    }
+
+    mode = aud_to_fmodfmt (as->fmt, as->nchannels == 2 ? 1 : 0);
+    fmd->fmod_sample = FSOUND_Sample_Alloc (
+        FSOUND_FREE,            /* index */
+        conf.nb_samples,        /* length */
+        mode,                   /* mode */
+        as->freq,               /* freq */
+        255,                    /* volume */
+        128,                    /* pan */
+        255                     /* priority */
+        );
+
+    if (!fmd->fmod_sample) {
+        fmod_logerr2 ("ADC", "Failed to allocate FMOD sample\n");
+        return -1;
+    }
+
+    /* FMOD always operates on little endian frames? */
+    obt_as.endianness = 0;
+    audio_pcm_init_info (&hw->info, &obt_as);
+    bits16 = (mode & FSOUND_16BITS) != 0;
+    hw->samples = conf.nb_samples;
+    return 0;
+}
+
+static void fmod_fini_in (HWVoiceIn *hw)
+{
+    FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
+
+    if (fmd->fmod_sample) {
+        FSOUND_Record_Stop ();
+        FSOUND_Sample_Free (fmd->fmod_sample);
+        fmd->fmod_sample = 0;
+    }
+}
+
+static int fmod_run_in (HWVoiceIn *hw)
+{
+    FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
+    int hwshift = hw->info.shift;
+    int live, dead, new_pos, len;
+    unsigned int blen1 = 0, blen2 = 0;
+    unsigned int len1, len2;
+    unsigned int decr;
+    void *p1, *p2;
+
+    live = audio_pcm_hw_get_live_in (hw);
+    dead = hw->samples - live;
+    if (!dead) {
+        return 0;
+    }
+
+    new_pos = FSOUND_Record_GetPosition ();
+    if (new_pos < 0) {
+        fmod_logerr ("Could not get recording position\n");
+        return 0;
+    }
+
+    len = audio_ring_dist (new_pos,  hw->wpos, hw->samples);
+    if (!len) {
+        return 0;
+    }
+    len = audio_MIN (len, dead);
+
+    if (fmod_lock_sample (fmd->fmod_sample, &fmd->hw.info,
+                          hw->wpos, len,
+                          &p1, &p2,
+                          &blen1, &blen2)) {
+        return 0;
+    }
+
+    len1 = blen1 >> hwshift;
+    len2 = blen2 >> hwshift;
+    decr = len1 + len2;
+
+    if (p1 && blen1) {
+        hw->conv (hw->conv_buf + hw->wpos, p1, len1, &nominal_volume);
+    }
+    if (p2 && len2) {
+        hw->conv (hw->conv_buf, p2, len2, &nominal_volume);
+    }
+
+    fmod_unlock_sample (fmd->fmod_sample, p1, p2, blen1, blen2);
+    hw->wpos = (hw->wpos + decr) % hw->samples;
+    return decr;
+}
+
+static struct {
+    const char *name;
+    int type;
+} drvtab[] = {
+    { .name = "none",   .type = FSOUND_OUTPUT_NOSOUND },
+#ifdef _WIN32
+    { .name = "winmm",  .type = FSOUND_OUTPUT_WINMM   },
+    { .name = "dsound", .type = FSOUND_OUTPUT_DSOUND  },
+    { .name = "a3d",    .type = FSOUND_OUTPUT_A3D     },
+    { .name = "asio",   .type = FSOUND_OUTPUT_ASIO    },
+#endif
+#ifdef __linux__
+    { .name = "oss",    .type = FSOUND_OUTPUT_OSS     },
+    { .name = "alsa",   .type = FSOUND_OUTPUT_ALSA    },
+    { .name = "esd",    .type = FSOUND_OUTPUT_ESD     },
+#endif
+#ifdef __APPLE__
+    { .name = "mac",    .type = FSOUND_OUTPUT_MAC     },
+#endif
+#if 0
+    { .name = "xbox",   .type = FSOUND_OUTPUT_XBOX    },
+    { .name = "ps2",    .type = FSOUND_OUTPUT_PS2     },
+    { .name = "gcube",  .type = FSOUND_OUTPUT_GC      },
+#endif
+    { .name = "none-realtime", .type = FSOUND_OUTPUT_NOSOUND_NONREALTIME }
+};
+
+static void *fmod_audio_init (void)
+{
+    size_t i;
+    double ver;
+    int status;
+    int output_type = -1;
+    const char *drv = conf.drvname;
+
+    ver = FSOUND_GetVersion ();
+    if (ver < FMOD_VERSION) {
+        dolog ("Wrong FMOD version %f, need at least %f\n", ver, FMOD_VERSION);
+        return NULL;
+    }
+
+#ifdef __linux__
+    if (ver < 3.75) {
+        dolog ("FMOD before 3.75 has bug preventing ADC from working\n"
+               "ADC will be disabled.\n");
+        conf.broken_adc = 1;
+    }
+#endif
+
+    if (drv) {
+        int found = 0;
+        for (i = 0; i < ARRAY_SIZE (drvtab); i++) {
+            if (!strcmp (drv, drvtab[i].name)) {
+                output_type = drvtab[i].type;
+                found = 1;
+                break;
+            }
+        }
+        if (!found) {
+            dolog ("Unknown FMOD driver `%s'\n", drv);
+            dolog ("Valid drivers:\n");
+            for (i = 0; i < ARRAY_SIZE (drvtab); i++) {
+                dolog ("  %s\n", drvtab[i].name);
+            }
+        }
+    }
+
+    if (output_type != -1) {
+        status = FSOUND_SetOutput (output_type);
+        if (!status) {
+            fmod_logerr ("FSOUND_SetOutput(%d) failed\n", output_type);
+            return NULL;
+        }
+    }
+
+    if (conf.bufsize) {
+        status = FSOUND_SetBufferSize (conf.bufsize);
+        if (!status) {
+            fmod_logerr ("FSOUND_SetBufferSize (%d) failed\n", conf.bufsize);
+        }
+    }
+
+    status = FSOUND_Init (conf.freq, conf.nb_channels, 0);
+    if (!status) {
+        fmod_logerr ("FSOUND_Init failed\n");
+        return NULL;
+    }
+
+    return &conf;
+}
+
+static int fmod_read (SWVoiceIn *sw, void *buf, int size)
+{
+    return audio_pcm_sw_read (sw, buf, size);
+}
+
+static int fmod_ctl_in (HWVoiceIn *hw, int cmd, ...)
+{
+    int status;
+    FMODVoiceIn *fmd = (FMODVoiceIn *) hw;
+
+    switch (cmd) {
+    case VOICE_ENABLE:
+        status = FSOUND_Record_StartSample (fmd->fmod_sample, 1);
+        if (!status) {
+            fmod_logerr ("Failed to start recording\n");
+        }
+        break;
+
+    case VOICE_DISABLE:
+        status = FSOUND_Record_Stop ();
+        if (!status) {
+            fmod_logerr ("Failed to stop recording\n");
+        }
+        break;
+    }
+    return 0;
+}
+
+static void fmod_audio_fini (void *opaque)
+{
+    (void) opaque;
+    FSOUND_Close ();
+}
+
+static struct audio_option fmod_options[] = {
+    {
+        .name  = "DRV",
+        .tag   = AUD_OPT_STR,
+        .valp  = &conf.drvname,
+        .descr = "FMOD driver"
+    },
+    {
+        .name  = "FREQ",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.freq,
+        .descr = "Default frequency"
+    },
+    {
+        .name  = "SAMPLES",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.nb_samples,
+        .descr = "Buffer size in samples"
+    },
+    {
+        .name  = "CHANNELS",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.nb_channels,
+        .descr = "Number of default channels (1 - mono, 2 - stereo)"
+    },
+    {
+        .name  = "BUFSIZE",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.bufsize,
+        .descr = "(undocumented)"
+    },
+    { /* End of list */ }
+};
+
+static struct audio_pcm_ops fmod_pcm_ops = {
+    .init_out = fmod_init_out,
+    .fini_out = fmod_fini_out,
+    .run_out  = fmod_run_out,
+    .write    = fmod_write,
+    .ctl_out  = fmod_ctl_out,
+
+    .init_in  = fmod_init_in,
+    .fini_in  = fmod_fini_in,
+    .run_in   = fmod_run_in,
+    .read     = fmod_read,
+    .ctl_in   = fmod_ctl_in
+};
+
+struct audio_driver fmod_audio_driver = {
+    .name           = "fmod",
+    .descr          = "FMOD 3.xx http://www.fmod.org",
+    .options        = fmod_options,
+    .init           = fmod_audio_init,
+    .fini           = fmod_audio_fini,
+    .pcm_ops        = &fmod_pcm_ops,
+    .can_be_default = 1,
+    .max_voices_out = INT_MAX,
+    .max_voices_in  = INT_MAX,
+    .voice_size_out = sizeof (FMODVoiceOut),
+    .voice_size_in  = sizeof (FMODVoiceIn)
+};

audio/mixeng.c

@@ -22,10 +22,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "qemu/osdep.h"
 #include "qemu-common.h"
-#include "qemu/bswap.h"
-#include "qemu/error-report.h"
 #include "audio.h"
 
 #define AUDIO_CAP "mixeng"
@@ -36,8 +33,7 @@
 #define ENDIAN_CONVERT(v) (v)
 
 /* Signed 8 bit */
-#define BSIZE 8
-#define ITYPE int
+#define IN_T int8_t
 #define IN_MIN SCHAR_MIN
 #define IN_MAX SCHAR_MAX
 #define SIGNED
@@ -46,29 +42,25 @@
 #undef SIGNED
 #undef IN_MAX
 #undef IN_MIN
-#undef BSIZE
-#undef ITYPE
+#undef IN_T
 #undef SHIFT
 
 /* Unsigned 8 bit */
-#define BSIZE 8
-#define ITYPE uint
+#define IN_T uint8_t
 #define IN_MIN 0
 #define IN_MAX UCHAR_MAX
 #define SHIFT 8
 #include "mixeng_template.h"
 #undef IN_MAX
 #undef IN_MIN
-#undef BSIZE
-#undef ITYPE
+#undef IN_T
 #undef SHIFT
 
 #undef ENDIAN_CONVERT
 #undef ENDIAN_CONVERSION
 
 /* Signed 16 bit */
-#define BSIZE 16
-#define ITYPE int
+#define IN_T int16_t
 #define IN_MIN SHRT_MIN
 #define IN_MAX SHRT_MAX
 #define SIGNED
@@ -86,13 +78,11 @@
 #undef SIGNED
 #undef IN_MAX
 #undef IN_MIN
-#undef BSIZE
-#undef ITYPE
+#undef IN_T
 #undef SHIFT
 
 /* Unsigned 16 bit */
-#define BSIZE 16
-#define ITYPE uint
+#define IN_T uint16_t
 #define IN_MIN 0
 #define IN_MAX USHRT_MAX
 #define SHIFT 16
@@ -108,13 +98,11 @@
 #undef ENDIAN_CONVERSION
 #undef IN_MAX
 #undef IN_MIN
-#undef BSIZE
-#undef ITYPE
+#undef IN_T
 #undef SHIFT
 
 /* Signed 32 bit */
-#define BSIZE 32
-#define ITYPE int
+#define IN_T int32_t
 #define IN_MIN INT32_MIN
 #define IN_MAX INT32_MAX
 #define SIGNED
@@ -132,13 +120,11 @@
 #undef SIGNED
 #undef IN_MAX
 #undef IN_MIN
-#undef BSIZE
-#undef ITYPE
+#undef IN_T
 #undef SHIFT
 
-/* Unsigned 32 bit */
-#define BSIZE 32
-#define ITYPE uint
+/* Unsigned 16 bit */
+#define IN_T uint32_t
 #define IN_MIN 0
 #define IN_MAX UINT32_MAX
 #define SHIFT 32
@@ -154,8 +140,7 @@
 #undef ENDIAN_CONVERSION
 #undef IN_MAX
 #undef IN_MIN
-#undef BSIZE
-#undef ITYPE
+#undef IN_T
 #undef SHIFT
 
 t_sample *mixeng_conv[2][2][2][3] = {
@@ -268,42 +253,11 @@ f_sample *mixeng_clip[2][2][2][3] = {
     }
 };
 
-
-void audio_sample_to_uint64(void *samples, int pos,
-                            uint64_t *left, uint64_t *right)
-{
-    struct st_sample *sample = samples;
-    sample += pos;
-#ifdef FLOAT_MIXENG
-    error_report(
-        "Coreaudio and floating point samples are not supported by replay yet");
-    abort();
-#else
-    *left = sample->l;
-    *right = sample->r;
-#endif
-}
-
-void audio_sample_from_uint64(void *samples, int pos,
-                            uint64_t left, uint64_t right)
-{
-    struct st_sample *sample = samples;
-    sample += pos;
-#ifdef FLOAT_MIXENG
-    error_report(
-        "Coreaudio and floating point samples are not supported by replay yet");
-    abort();
-#else
-    sample->l = left;
-    sample->r = right;
-#endif
-}
-
 /*
  * August 21, 1998
  * Copyright 1998 Fabrice Bellard.
  *
- * [Rewrote completely the code of Lance Norskog And Sundry
+ * [Rewrote completly the code of Lance Norskog And Sundry
  * Contributors with a more efficient algorithm.]
  *
  * This source code is freely redistributable and may be used for
@@ -372,29 +326,10 @@ void *st_rate_start (int inrate, int outrate)
 
 void st_rate_stop (void *opaque)
 {
-    g_free (opaque);
+    qemu_free (opaque);
 }
 
 void mixeng_clear (struct st_sample *buf, int len)
 {
     memset (buf, 0, len * sizeof (struct st_sample));
 }
-
-void mixeng_volume (struct st_sample *buf, int len, struct mixeng_volume *vol)
-{
-    if (vol->mute) {
-        mixeng_clear (buf, len);
-        return;
-    }
-
-    while (len--) {
-#ifdef FLOAT_MIXENG
-        buf->l = buf->l * vol->l;
-        buf->r = buf->r * vol->r;
-#else
-        buf->l = (buf->l * vol->l) >> 32;
-        buf->r = (buf->r * vol->r) >> 32;
-#endif
-        buf += 1;
-    }
-}

audio/mixeng.h

@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-
 #ifndef QEMU_MIXENG_H
 #define QEMU_MIXENG_H
 
@@ -34,7 +33,8 @@ struct mixeng_volume { int mute; int64_t r; int64_t l; };
 struct st_sample { int64_t l; int64_t r; };
 #endif
 
-typedef void (t_sample) (struct st_sample *dst, const void *src, int samples);
+typedef void (t_sample) (struct st_sample *dst, const void *src,
+                         int samples, struct mixeng_volume *vol);
 typedef void (f_sample) (void *dst, const struct st_sample *src, int samples);
 
 extern t_sample *mixeng_conv[2][2][2][3];
@@ -47,6 +47,5 @@ void st_rate_flow_mix (void *opaque, struct st_sample *ibuf, struct st_sample *o
                        int *isamp, int *osamp);
 void st_rate_stop (void *opaque);
 void mixeng_clear (struct st_sample *buf, int len);
-void mixeng_volume (struct st_sample *buf, int len, struct mixeng_volume *vol);
 
-#endif /* QEMU_MIXENG_H */
+#endif  /* mixeng.h */

audio/mixeng_template.h

@@ -31,11 +31,20 @@
 #define HALF (IN_MAX >> 1)
 #endif
 
-#define ET glue (ENDIAN_CONVERSION, glue (glue (glue (_, ITYPE), BSIZE), _t))
-#define IN_T glue (glue (ITYPE, BSIZE), _t)
+#ifdef CONFIG_MIXEMU
+#ifdef FLOAT_MIXENG
+#define VOL(a, b) ((a) * (b))
+#else
+#define VOL(a, b) ((a) * (b)) >> 32
+#endif
+#else
+#define VOL(a, b) a
+#endif
+
+#define ET glue (ENDIAN_CONVERSION, glue (_, IN_T))
 
 #ifdef FLOAT_MIXENG
-static inline mixeng_real glue (conv_, ET) (IN_T v)
+static mixeng_real inline glue (conv_, ET) (IN_T v)
 {
     IN_T nv = ENDIAN_CONVERT (v);
 
@@ -47,14 +56,14 @@ static inline mixeng_real glue (conv_, ET) (IN_T v)
 #endif
 #else  /* !RECIPROCAL */
 #ifdef SIGNED
-    return nv / (mixeng_real) ((mixeng_real) IN_MAX - IN_MIN);
+    return nv / (mixeng_real) (IN_MAX - IN_MIN);
 #else
     return (nv - HALF) / (mixeng_real) IN_MAX;
 #endif
 #endif
 }
 
-static inline IN_T glue (clip_, ET) (mixeng_real v)
+static IN_T inline glue (clip_, ET) (mixeng_real v)
 {
     if (v >= 0.5) {
         return IN_MAX;
@@ -64,7 +73,7 @@ static inline IN_T glue (clip_, ET) (mixeng_real v)
     }
 
 #ifdef SIGNED
-    return ENDIAN_CONVERT ((IN_T) (v * ((mixeng_real) IN_MAX - IN_MIN)));
+    return ENDIAN_CONVERT ((IN_T) (v * (IN_MAX - IN_MIN)));
 #else
     return ENDIAN_CONVERT ((IN_T) ((v * IN_MAX) + HALF));
 #endif
@@ -100,26 +109,40 @@ static inline IN_T glue (clip_, ET) (int64_t v)
 #endif
 
 static void glue (glue (conv_, ET), _to_stereo)
-    (struct st_sample *dst, const void *src, int samples)
+    (struct st_sample *dst, const void *src, int samples, struct mixeng_volume *vol)
 {
     struct st_sample *out = dst;
     IN_T *in = (IN_T *) src;
-
+#ifdef CONFIG_MIXEMU
+    if (vol->mute) {
+        mixeng_clear (dst, samples);
+        return;
+    }
+#else
+    (void) vol;
+#endif
     while (samples--) {
-        out->l = glue (conv_, ET) (*in++);
-        out->r = glue (conv_, ET) (*in++);
+        out->l = VOL (glue (conv_, ET) (*in++), vol->l);
+        out->r = VOL (glue (conv_, ET) (*in++), vol->r);
         out += 1;
     }
 }
 
 static void glue (glue (conv_, ET), _to_mono)
-    (struct st_sample *dst, const void *src, int samples)
+    (struct st_sample *dst, const void *src, int samples, struct mixeng_volume *vol)
 {
     struct st_sample *out = dst;
     IN_T *in = (IN_T *) src;
-
+#ifdef CONFIG_MIXEMU
+    if (vol->mute) {
+        mixeng_clear (dst, samples);
+        return;
+    }
+#else
+    (void) vol;
+#endif
     while (samples--) {
-        out->l = glue (conv_, ET) (in[0]);
+        out->l = VOL (glue (conv_, ET) (in[0]), vol->l);
         out->r = out->l;
         out += 1;
         in += 1;
@@ -151,4 +174,4 @@ static void glue (glue (clip_, ET), _from_mono)
 
 #undef ET
 #undef HALF
-#undef IN_T
+#undef VOL

audio/noaudio.c

@@ -21,11 +21,9 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "qemu/osdep.h"
 #include "qemu-common.h"
-#include "qemu/host-utils.h"
 #include "audio.h"
-#include "qemu/timer.h"
+#include "qemu-timer.h"
 
 #define AUDIO_CAP "noaudio"
 #include "audio_int.h"
@@ -48,10 +46,10 @@ static int no_run_out (HWVoiceOut *hw, int live)
     int64_t ticks;
     int64_t bytes;
 
-    now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+    now = qemu_get_clock (vm_clock);
     ticks = now - no->old_ticks;
-    bytes = muldiv64(ticks, hw->info.bytes_per_second, NANOSECONDS_PER_SECOND);
-    bytes = audio_MIN(bytes, INT_MAX);
+    bytes = muldiv64 (ticks, hw->info.bytes_per_second, get_ticks_per_sec ());
+    bytes = audio_MIN (bytes, INT_MAX);
     samples = bytes >> hw->info.shift;
 
     no->old_ticks = now;
@@ -62,10 +60,10 @@ static int no_run_out (HWVoiceOut *hw, int live)
 
 static int no_write (SWVoiceOut *sw, void *buf, int len)
 {
-    return audio_pcm_sw_write(sw, buf, len);
+    return audio_pcm_sw_write (sw, buf, len);
 }
 
-static int no_init_out(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque)
+static int no_init_out (HWVoiceOut *hw, struct audsettings *as)
 {
     audio_pcm_init_info (&hw->info, as);
     hw->samples = 1024;
@@ -84,7 +82,7 @@ static int no_ctl_out (HWVoiceOut *hw, int cmd, ...)
     return 0;
 }
 
-static int no_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
+static int no_init_in (HWVoiceIn *hw, struct audsettings *as)
 {
     audio_pcm_init_info (&hw->info, as);
     hw->samples = 1024;
@@ -104,10 +102,10 @@ static int no_run_in (HWVoiceIn *hw)
     int samples = 0;
 
     if (dead) {
-        int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+        int64_t now = qemu_get_clock (vm_clock);
         int64_t ticks = now - no->old_ticks;
         int64_t bytes =
-            muldiv64(ticks, hw->info.bytes_per_second, NANOSECONDS_PER_SECOND);
+            muldiv64 (ticks, hw->info.bytes_per_second, get_ticks_per_sec ());
 
         no->old_ticks = now;
         bytes = audio_MIN (bytes, INT_MAX);
@@ -119,14 +117,11 @@ static int no_run_in (HWVoiceIn *hw)
 
 static int no_read (SWVoiceIn *sw, void *buf, int size)
 {
-    /* use custom code here instead of audio_pcm_sw_read() to avoid
-     * useless resampling/mixing */
     int samples = size >> sw->info.shift;
     int total = sw->hw->total_samples_captured - sw->total_hw_samples_acquired;
     int to_clear = audio_MIN (samples, total);
-    sw->total_hw_samples_acquired += total;
     audio_pcm_info_clear_buf (&sw->info, buf, to_clear);
-    return to_clear << sw->info.shift;
+    return to_clear;
 }
 
 static int no_ctl_in (HWVoiceIn *hw, int cmd, ...)

audio/ossaudio.c

@@ -21,32 +21,23 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "qemu/osdep.h"
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/types.h>
 #include <sys/ioctl.h>
+#ifdef __OpenBSD__
+#include <soundcard.h>
+#else
 #include <sys/soundcard.h>
+#endif
 #include "qemu-common.h"
-#include "qemu/main-loop.h"
-#include "qemu/host-utils.h"
+#include "host-utils.h"
+#include "qemu-char.h"
 #include "audio.h"
-#include "trace.h"
 
 #define AUDIO_CAP "oss"
 #include "audio_int.h"
 
-#if defined OSS_GETVERSION && defined SNDCTL_DSP_POLICY
-#define USE_DSP_POLICY
-#endif
-
-typedef struct OSSConf {
-    int try_mmap;
-    int nfrags;
-    int fragsize;
-    const char *devpath_out;
-    const char *devpath_in;
-    int exclusive;
-    int policy;
-} OSSConf;
-
 typedef struct OSSVoiceOut {
     HWVoiceOut hw;
     void *pcm_buf;
@@ -56,7 +47,6 @@ typedef struct OSSVoiceOut {
     int fragsize;
     int mmapped;
     int pending;
-    OSSConf *conf;
 } OSSVoiceOut;
 
 typedef struct OSSVoiceIn {
@@ -65,9 +55,28 @@ typedef struct OSSVoiceIn {
     int fd;
     int nfrags;
     int fragsize;
-    OSSConf *conf;
 } OSSVoiceIn;
 
+static struct {
+    int try_mmap;
+    int nfrags;
+    int fragsize;
+    const char *devpath_out;
+    const char *devpath_in;
+    int debug;
+    int exclusive;
+    int policy;
+} conf = {
+    .try_mmap = 0,
+    .nfrags = 4,
+    .fragsize = 4096,
+    .devpath_out = "/dev/dsp",
+    .devpath_in = "/dev/dsp",
+    .debug = 0,
+    .exclusive = 0,
+    .policy = 5
+};
+
 struct oss_params {
     int freq;
     audfmt_e fmt;
@@ -129,18 +138,18 @@ static void oss_helper_poll_in (void *opaque)
     audio_run ("oss_poll_in");
 }
 
-static void oss_poll_out (HWVoiceOut *hw)
+static int oss_poll_out (HWVoiceOut *hw)
 {
     OSSVoiceOut *oss = (OSSVoiceOut *) hw;
 
-    qemu_set_fd_handler (oss->fd, NULL, oss_helper_poll_out, NULL);
+    return qemu_set_fd_handler (oss->fd, NULL, oss_helper_poll_out, NULL);
 }
 
-static void oss_poll_in (HWVoiceIn *hw)
+static int oss_poll_in (HWVoiceIn *hw)
 {
     OSSVoiceIn *oss = (OSSVoiceIn *) hw;
 
-    qemu_set_fd_handler (oss->fd, oss_helper_poll_in, NULL, NULL);
+    return qemu_set_fd_handler (oss->fd, oss_helper_poll_in, NULL, NULL);
 }
 
 static int oss_write (SWVoiceOut *sw, void *buf, int len)
@@ -148,7 +157,7 @@ static int oss_write (SWVoiceOut *sw, void *buf, int len)
     return audio_pcm_sw_write (sw, buf, len);
 }
 
-static int aud_to_ossfmt (audfmt_e fmt, int endianness)
+static int aud_to_ossfmt (audfmt_e fmt)
 {
     switch (fmt) {
     case AUD_FMT_S8:
@@ -158,20 +167,10 @@ static int aud_to_ossfmt (audfmt_e fmt, int endianness)
         return AFMT_U8;
 
     case AUD_FMT_S16:
-        if (endianness) {
-            return AFMT_S16_BE;
-        }
-        else {
-            return AFMT_S16_LE;
-        }
+        return AFMT_S16_LE;
 
     case AUD_FMT_U16:
-        if (endianness) {
-            return AFMT_U16_BE;
-        }
-        else {
-            return AFMT_U16_LE;
-        }
+        return AFMT_U16_LE;
 
     default:
         dolog ("Internal logic error: Bad audio format %d\n", fmt);
@@ -237,44 +236,19 @@ static void oss_dump_info (struct oss_params *req, struct oss_params *obt)
 }
 #endif
 
-#ifdef USE_DSP_POLICY
-static int oss_get_version (int fd, int *version, const char *typ)
-{
-    if (ioctl (fd, OSS_GETVERSION, &version)) {
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-        /*
-         * Looks like atm (20100109) FreeBSD knows OSS_GETVERSION
-         * since 7.x, but currently only on the mixer device (or in
-         * the Linuxolator), and in the native version that part of
-         * the code is in fact never reached so the ioctl fails anyway.
-         * Until this is fixed, just check the errno and if its what
-         * FreeBSD's sound drivers return atm assume they are new enough.
-         */
-        if (errno == EINVAL) {
-            *version = 0x040000;
-            return 0;
-        }
-#endif
-        oss_logerr2 (errno, typ, "Failed to get OSS version\n");
-        return -1;
-    }
-    return 0;
-}
-#endif
-
 static int oss_open (int in, struct oss_params *req,
-                     struct oss_params *obt, int *pfd, OSSConf* conf)
+                     struct oss_params *obt, int *pfd)
 {
     int fd;
-    int oflags = conf->exclusive ? O_EXCL : 0;
+    int version;
+    int oflags = conf.exclusive ? O_EXCL : 0;
     audio_buf_info abinfo;
     int fmt, freq, nchannels;
-    int setfragment = 1;
-    const char *dspname = in ? conf->devpath_in : conf->devpath_out;
+    const char *dspname = in ? conf.devpath_in : conf.devpath_out;
     const char *typ = in ? "ADC" : "DAC";
 
     /* Kludge needed to have working mmap on Linux */
-    oflags |= conf->try_mmap ? O_RDWR : (in ? O_RDONLY : O_WRONLY);
+    oflags |= conf.try_mmap ? O_RDWR : (in ? O_RDONLY : O_WRONLY);
 
     fd = open (dspname, oflags | O_NONBLOCK);
     if (-1 == fd) {
@@ -307,28 +281,27 @@ static int oss_open (int in, struct oss_params *req,
         goto err;
     }
 
-#ifdef USE_DSP_POLICY
-    if (conf->policy >= 0) {
-        int version;
+    if (ioctl (fd, OSS_GETVERSION, &version)) {
+        oss_logerr2 (errno, typ, "Failed to get OSS version\n");
+        version = 0;
+    }
 
-        if (!oss_get_version (fd, &version, typ)) {
-            trace_oss_version(version);
+    if (conf.debug) {
+        dolog ("OSS version = %#x\n", version);
+    }
 
-            if (version >= 0x040000) {
-                int policy = conf->policy;
-                if (ioctl (fd, SNDCTL_DSP_POLICY, &policy)) {
-                    oss_logerr2 (errno, typ,
-                                 "Failed to set timing policy to %d\n",
-                                 conf->policy);
-                    goto err;
-                }
-                setfragment = 0;
-            }
+#ifdef SNDCTL_DSP_POLICY
+    if (conf.policy >= 0 && version >= 0x040000) {
+        int policy = conf.policy;
+        if (ioctl (fd, SNDCTL_DSP_POLICY, &policy)) {
+            oss_logerr2 (errno, typ, "Failed to set timing policy to %d\n",
+                         conf.policy);
+            goto err;
         }
     }
+    else
 #endif
-
-    if (setfragment) {
+    {
         int mmmmssss = (req->nfrags << 16) | ctz32 (req->fragsize);
         if (ioctl (fd, SNDCTL_DSP_SETFRAGMENT, &mmmmssss)) {
             oss_logerr2 (errno, typ, "Failed to set buffer length (%d, %d)\n",
@@ -447,12 +420,19 @@ static int oss_run_out (HWVoiceOut *hw, int live)
         }
 
         if (abinfo.bytes > bufsize) {
-            trace_oss_invalid_available_size(abinfo.bytes, bufsize);
+            if (conf.debug) {
+                dolog ("warning: Invalid available size, size=%d bufsize=%d\n"
+                       "please report your OS/audio hw to av1474@comtv.ru\n",
+                       abinfo.bytes, bufsize);
+            }
             abinfo.bytes = bufsize;
         }
 
         if (abinfo.bytes < 0) {
-            trace_oss_invalid_available_size(abinfo.bytes, bufsize);
+            if (conf.debug) {
+                dolog ("warning: Invalid available size, size=%d bufsize=%d\n",
+                       abinfo.bytes, bufsize);
+            }
             return 0;
         }
 
@@ -486,14 +466,13 @@ static void oss_fini_out (HWVoiceOut *hw)
             }
         }
         else {
-            g_free (oss->pcm_buf);
+            qemu_free (oss->pcm_buf);
         }
         oss->pcm_buf = NULL;
     }
 }
 
-static int oss_init_out(HWVoiceOut *hw, struct audsettings *as,
-                        void *drv_opaque)
+static int oss_init_out (HWVoiceOut *hw, struct audsettings *as)
 {
     OSSVoiceOut *oss = (OSSVoiceOut *) hw;
     struct oss_params req, obt;
@@ -502,17 +481,16 @@ static int oss_init_out(HWVoiceOut *hw, struct audsettings *as,
     int fd;
     audfmt_e effective_fmt;
     struct audsettings obt_as;
-    OSSConf *conf = drv_opaque;
 
     oss->fd = -1;
 
-    req.fmt = aud_to_ossfmt (as->fmt, as->endianness);
+    req.fmt = aud_to_ossfmt (as->fmt);
     req.freq = as->freq;
     req.nchannels = as->nchannels;
-    req.fragsize = conf->fragsize;
-    req.nfrags = conf->nfrags;
+    req.fragsize = conf.fragsize;
+    req.nfrags = conf.nfrags;
 
-    if (oss_open (0, &req, &obt, &fd, conf)) {
+    if (oss_open (0, &req, &obt, &fd)) {
         return -1;
     }
 
@@ -539,7 +517,7 @@ static int oss_init_out(HWVoiceOut *hw, struct audsettings *as,
     hw->samples = (obt.nfrags * obt.fragsize) >> hw->info.shift;
 
     oss->mmapped = 0;
-    if (conf->try_mmap) {
+    if (conf.try_mmap) {
         oss->pcm_buf = mmap (
             NULL,
             hw->samples << hw->info.shift,
@@ -599,7 +577,6 @@ static int oss_init_out(HWVoiceOut *hw, struct audsettings *as,
     }
 
     oss->fd = fd;
-    oss->conf = conf;
     return 0;
 }
 
@@ -619,8 +596,7 @@ static int oss_ctl_out (HWVoiceOut *hw, int cmd, ...)
             va_end (ap);
 
             ldebug ("enabling voice\n");
-            if (poll_mode) {
-                oss_poll_out (hw);
+            if (poll_mode && oss_poll_out (hw)) {
                 poll_mode = 0;
             }
             hw->poll_mode = poll_mode;
@@ -662,7 +638,7 @@ static int oss_ctl_out (HWVoiceOut *hw, int cmd, ...)
     return 0;
 }
 
-static int oss_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
+static int oss_init_in (HWVoiceIn *hw, struct audsettings *as)
 {
     OSSVoiceIn *oss = (OSSVoiceIn *) hw;
     struct oss_params req, obt;
@@ -671,16 +647,15 @@ static int oss_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
     int fd;
     audfmt_e effective_fmt;
     struct audsettings obt_as;
-    OSSConf *conf = drv_opaque;
 
     oss->fd = -1;
 
-    req.fmt = aud_to_ossfmt (as->fmt, as->endianness);
+    req.fmt = aud_to_ossfmt (as->fmt);
     req.freq = as->freq;
     req.nchannels = as->nchannels;
-    req.fragsize = conf->fragsize;
-    req.nfrags = conf->nfrags;
-    if (oss_open (1, &req, &obt, &fd, conf)) {
+    req.fragsize = conf.fragsize;
+    req.nfrags = conf.nfrags;
+    if (oss_open (1, &req, &obt, &fd)) {
         return -1;
     }
 
@@ -714,7 +689,6 @@ static int oss_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
     }
 
     oss->fd = fd;
-    oss->conf = conf;
     return 0;
 }
 
@@ -724,8 +698,10 @@ static void oss_fini_in (HWVoiceIn *hw)
 
     oss_anal_close (&oss->fd);
 
-    g_free(oss->pcm_buf);
-    oss->pcm_buf = NULL;
+    if (oss->pcm_buf) {
+        qemu_free (oss->pcm_buf);
+        oss->pcm_buf = NULL;
+    }
 }
 
 static int oss_run_in (HWVoiceIn *hw)
@@ -770,7 +746,8 @@ static int oss_run_in (HWVoiceIn *hw)
                            hw->info.align + 1);
                 }
                 read_samples += nread >> hwshift;
-                hw->conv (hw->conv_buf + bufs[i].add, p, nread >> hwshift);
+                hw->conv (hw->conv_buf + bufs[i].add, p, nread >> hwshift,
+                          &nominal_volume);
             }
 
             if (bufs[i].len - nread) {
@@ -816,8 +793,7 @@ static int oss_ctl_in (HWVoiceIn *hw, int cmd, ...)
             poll_mode = va_arg (ap, int);
             va_end (ap);
 
-            if (poll_mode) {
-                oss_poll_in (hw);
+            if (poll_mode && oss_poll_in (hw)) {
                 poll_mode = 0;
             }
             hw->poll_mode = poll_mode;
@@ -834,79 +810,67 @@ static int oss_ctl_in (HWVoiceIn *hw, int cmd, ...)
     return 0;
 }
 
-static OSSConf glob_conf = {
-    .try_mmap = 0,
-    .nfrags = 4,
-    .fragsize = 4096,
-    .devpath_out = "/dev/dsp",
-    .devpath_in = "/dev/dsp",
-    .exclusive = 0,
-    .policy = 5
-};
-
 static void *oss_audio_init (void)
 {
-    OSSConf *conf = g_malloc(sizeof(OSSConf));
-    *conf = glob_conf;
-
-    if (access(conf->devpath_in, R_OK | W_OK) < 0 ||
-        access(conf->devpath_out, R_OK | W_OK) < 0) {
-        g_free(conf);
-        return NULL;
-    }
-    return conf;
+    return &conf;
 }
 
 static void oss_audio_fini (void *opaque)
 {
-    g_free(opaque);
+    (void) opaque;
 }
 
 static struct audio_option oss_options[] = {
     {
         .name  = "FRAGSIZE",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.fragsize,
+        .valp  = &conf.fragsize,
         .descr = "Fragment size in bytes"
     },
     {
         .name  = "NFRAGS",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.nfrags,
+        .valp  = &conf.nfrags,
         .descr = "Number of fragments"
     },
     {
         .name  = "MMAP",
         .tag   = AUD_OPT_BOOL,
-        .valp  = &glob_conf.try_mmap,
+        .valp  = &conf.try_mmap,
         .descr = "Try using memory mapped access"
     },
     {
         .name  = "DAC_DEV",
         .tag   = AUD_OPT_STR,
-        .valp  = &glob_conf.devpath_out,
+        .valp  = &conf.devpath_out,
         .descr = "Path to DAC device"
     },
     {
         .name  = "ADC_DEV",
         .tag   = AUD_OPT_STR,
-        .valp  = &glob_conf.devpath_in,
+        .valp  = &conf.devpath_in,
         .descr = "Path to ADC device"
     },
     {
         .name  = "EXCLUSIVE",
         .tag   = AUD_OPT_BOOL,
-        .valp  = &glob_conf.exclusive,
-        .descr = "Open device in exclusive mode (vmix won't work)"
+        .valp  = &conf.exclusive,
+        .descr = "Open device in exclusive mode (vmix wont work)"
     },
-#ifdef USE_DSP_POLICY
+#ifdef SNDCTL_DSP_POLICY
     {
         .name  = "POLICY",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.policy,
+        .valp  = &conf.policy,
         .descr = "Set the timing policy of the device, -1 to use fragment mode",
     },
 #endif
+    {
+        .name  = "DEBUG",
+        .tag   = AUD_OPT_BOOL,
+        .valp  = &conf.debug,
+        .descr = "Turn on some debugging messages"
+    },
     { /* End of list */ }
 };
 

audio/paaudio.c

@@ -1,37 +1,23 @@
 /* public domain */
-#include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "audio.h"
 
-#include <pulse/pulseaudio.h>
+#include <pulse/simple.h>
+#include <pulse/error.h>
 
 #define AUDIO_CAP "pulseaudio"
 #include "audio_int.h"
 #include "audio_pt_int.h"
 
-typedef struct {
-    int samples;
-    char *server;
-    char *sink;
-    char *source;
-} PAConf;
-
-typedef struct {
-    PAConf conf;
-    pa_threaded_mainloop *mainloop;
-    pa_context *context;
-} paaudio;
-
 typedef struct {
     HWVoiceOut hw;
     int done;
     int live;
     int decr;
     int rpos;
-    pa_stream *stream;
+    pa_simple *s;
     void *pcm_buf;
     struct audio_pt pt;
-    paaudio *g;
 } PAVoiceOut;
 
 typedef struct {
@@ -40,15 +26,21 @@ typedef struct {
     int dead;
     int incr;
     int wpos;
-    pa_stream *stream;
+    pa_simple *s;
     void *pcm_buf;
     struct audio_pt pt;
-    const void *read_data;
-    size_t read_index, read_length;
-    paaudio *g;
 } PAVoiceIn;
 
-static void qpa_audio_fini(void *opaque);
+static struct {
+    int samples;
+    int divisor;
+    char *server;
+    char *sink;
+    char *source;
+} conf = {
+    .samples = 1024,
+    .divisor = 2,
+};
 
 static void GCC_FMT_ATTR (2, 3) qpa_logerr (int err, const char *fmt, ...)
 {
@@ -61,150 +53,13 @@ static void GCC_FMT_ATTR (2, 3) qpa_logerr (int err, const char *fmt, ...)
     AUD_log (AUDIO_CAP, "Reason: %s\n", pa_strerror (err));
 }
 
-#ifndef PA_CONTEXT_IS_GOOD
-static inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x)
-{
-    return
-        x == PA_CONTEXT_CONNECTING ||
-        x == PA_CONTEXT_AUTHORIZING ||
-        x == PA_CONTEXT_SETTING_NAME ||
-        x == PA_CONTEXT_READY;
-}
-#endif
-
-#ifndef PA_STREAM_IS_GOOD
-static inline int PA_STREAM_IS_GOOD(pa_stream_state_t x)
-{
-    return
-        x == PA_STREAM_CREATING ||
-        x == PA_STREAM_READY;
-}
-#endif
-
-#define CHECK_SUCCESS_GOTO(c, rerror, expression, label)        \
-    do {                                                        \
-        if (!(expression)) {                                    \
-            if (rerror) {                                       \
-                *(rerror) = pa_context_errno ((c)->context);    \
-            }                                                   \
-            goto label;                                         \
-        }                                                       \
-    } while (0);
-
-#define CHECK_DEAD_GOTO(c, stream, rerror, label)                       \
-    do {                                                                \
-        if (!(c)->context || !PA_CONTEXT_IS_GOOD (pa_context_get_state((c)->context)) || \
-            !(stream) || !PA_STREAM_IS_GOOD (pa_stream_get_state ((stream)))) { \
-            if (((c)->context && pa_context_get_state ((c)->context) == PA_CONTEXT_FAILED) || \
-                ((stream) && pa_stream_get_state ((stream)) == PA_STREAM_FAILED)) { \
-                if (rerror) {                                           \
-                    *(rerror) = pa_context_errno ((c)->context);        \
-                }                                                       \
-            } else {                                                    \
-                if (rerror) {                                           \
-                    *(rerror) = PA_ERR_BADSTATE;                        \
-                }                                                       \
-            }                                                           \
-            goto label;                                                 \
-        }                                                               \
-    } while (0);
-
-static int qpa_simple_read (PAVoiceIn *p, void *data, size_t length, int *rerror)
-{
-    paaudio *g = p->g;
-
-    pa_threaded_mainloop_lock (g->mainloop);
-
-    CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail);
-
-    while (length > 0) {
-        size_t l;
-
-        while (!p->read_data) {
-            int r;
-
-            r = pa_stream_peek (p->stream, &p->read_data, &p->read_length);
-            CHECK_SUCCESS_GOTO (g, rerror, r == 0, unlock_and_fail);
-
-            if (!p->read_data) {
-                pa_threaded_mainloop_wait (g->mainloop);
-                CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail);
-            } else {
-                p->read_index = 0;
-            }
-        }
-
-        l = p->read_length < length ? p->read_length : length;
-        memcpy (data, (const uint8_t *) p->read_data+p->read_index, l);
-
-        data = (uint8_t *) data + l;
-        length -= l;
-
-        p->read_index += l;
-        p->read_length -= l;
-
-        if (!p->read_length) {
-            int r;
-
-            r = pa_stream_drop (p->stream);
-            p->read_data = NULL;
-            p->read_length = 0;
-            p->read_index = 0;
-
-            CHECK_SUCCESS_GOTO (g, rerror, r == 0, unlock_and_fail);
-        }
-    }
-
-    pa_threaded_mainloop_unlock (g->mainloop);
-    return 0;
-
-unlock_and_fail:
-    pa_threaded_mainloop_unlock (g->mainloop);
-    return -1;
-}
-
-static int qpa_simple_write (PAVoiceOut *p, const void *data, size_t length, int *rerror)
-{
-    paaudio *g = p->g;
-
-    pa_threaded_mainloop_lock (g->mainloop);
-
-    CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail);
-
-    while (length > 0) {
-        size_t l;
-        int r;
-
-        while (!(l = pa_stream_writable_size (p->stream))) {
-            pa_threaded_mainloop_wait (g->mainloop);
-            CHECK_DEAD_GOTO (g, p->stream, rerror, unlock_and_fail);
-        }
-
-        CHECK_SUCCESS_GOTO (g, rerror, l != (size_t) -1, unlock_and_fail);
-
-        if (l > length) {
-            l = length;
-        }
-
-        r = pa_stream_write (p->stream, data, l, NULL, 0LL, PA_SEEK_RELATIVE);
-        CHECK_SUCCESS_GOTO (g, rerror, r >= 0, unlock_and_fail);
-
-        data = (const uint8_t *) data + l;
-        length -= l;
-    }
-
-    pa_threaded_mainloop_unlock (g->mainloop);
-    return 0;
-
-unlock_and_fail:
-    pa_threaded_mainloop_unlock (g->mainloop);
-    return -1;
-}
-
 static void *qpa_thread_out (void *arg)
 {
     PAVoiceOut *pa = arg;
     HWVoiceOut *hw = &pa->hw;
+    int threshold;
+
+    threshold = conf.divisor ? hw->samples / conf.divisor : 0;
 
     if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
         return NULL;
@@ -218,7 +73,7 @@ static void *qpa_thread_out (void *arg)
                 goto exit;
             }
 
-            if (pa->live > 0) {
+            if (pa->live > threshold) {
                 break;
             }
 
@@ -227,8 +82,8 @@ static void *qpa_thread_out (void *arg)
             }
         }
 
-        decr = to_mix = audio_MIN (pa->live, pa->g->conf.samples >> 2);
-        rpos = pa->rpos;
+        decr = to_mix = pa->live;
+        rpos = hw->rpos;
 
         if (audio_pt_unlock (&pa->pt, AUDIO_FUNC)) {
             return NULL;
@@ -241,8 +96,8 @@ static void *qpa_thread_out (void *arg)
 
             hw->clip (pa->pcm_buf, src, chunk);
 
-            if (qpa_simple_write (pa, pa->pcm_buf,
-                                  chunk << hw->info.shift, &error) < 0) {
+            if (pa_simple_write (pa->s, pa->pcm_buf,
+                                 chunk << hw->info.shift, &error) < 0) {
                 qpa_logerr (error, "pa_simple_write failed\n");
                 return NULL;
             }
@@ -297,6 +152,9 @@ static void *qpa_thread_in (void *arg)
 {
     PAVoiceIn *pa = arg;
     HWVoiceIn *hw = &pa->hw;
+    int threshold;
+
+    threshold = conf.divisor ? hw->samples / conf.divisor : 0;
 
     if (audio_pt_lock (&pa->pt, AUDIO_FUNC)) {
         return NULL;
@@ -310,7 +168,7 @@ static void *qpa_thread_in (void *arg)
                 goto exit;
             }
 
-            if (pa->dead > 0) {
+            if (pa->dead > threshold) {
                 break;
             }
 
@@ -319,8 +177,8 @@ static void *qpa_thread_in (void *arg)
             }
         }
 
-        incr = to_grab = audio_MIN (pa->dead, pa->g->conf.samples >> 2);
-        wpos = pa->wpos;
+        incr = to_grab = pa->dead;
+        wpos = hw->wpos;
 
         if (audio_pt_unlock (&pa->pt, AUDIO_FUNC)) {
             return NULL;
@@ -331,13 +189,13 @@ static void *qpa_thread_in (void *arg)
             int chunk = audio_MIN (to_grab, hw->samples - wpos);
             void *buf = advance (pa->pcm_buf, wpos);
 
-            if (qpa_simple_read (pa, buf,
-                                 chunk << hw->info.shift, &error) < 0) {
+            if (pa_simple_read (pa->s, buf,
+                                chunk << hw->info.shift, &error) < 0) {
                 qpa_logerr (error, "pa_simple_read failed\n");
                 return NULL;
             }
 
-            hw->conv (hw->conv_buf + wpos, buf, chunk);
+            hw->conv (hw->conv_buf + wpos, buf, chunk, &nominal_volume);
             wpos = (wpos + chunk) % hw->samples;
             to_grab -= chunk;
         }
@@ -433,154 +291,38 @@ static audfmt_e pa_to_audfmt (pa_sample_format_t fmt, int *endianness)
     }
 }
 
-static void context_state_cb (pa_context *c, void *userdata)
-{
-    paaudio *g = userdata;
-
-    switch (pa_context_get_state(c)) {
-    case PA_CONTEXT_READY:
-    case PA_CONTEXT_TERMINATED:
-    case PA_CONTEXT_FAILED:
-        pa_threaded_mainloop_signal (g->mainloop, 0);
-        break;
-
-    case PA_CONTEXT_UNCONNECTED:
-    case PA_CONTEXT_CONNECTING:
-    case PA_CONTEXT_AUTHORIZING:
-    case PA_CONTEXT_SETTING_NAME:
-        break;
-    }
-}
-
-static void stream_state_cb (pa_stream *s, void * userdata)
-{
-    paaudio *g = userdata;
-
-    switch (pa_stream_get_state (s)) {
-
-    case PA_STREAM_READY:
-    case PA_STREAM_FAILED:
-    case PA_STREAM_TERMINATED:
-        pa_threaded_mainloop_signal (g->mainloop, 0);
-        break;
-
-    case PA_STREAM_UNCONNECTED:
-    case PA_STREAM_CREATING:
-        break;
-    }
-}
-
-static void stream_request_cb (pa_stream *s, size_t length, void *userdata)
-{
-    paaudio *g = userdata;
-
-    pa_threaded_mainloop_signal (g->mainloop, 0);
-}
-
-static pa_stream *qpa_simple_new (
-        paaudio *g,
-        const char *name,
-        pa_stream_direction_t dir,
-        const char *dev,
-        const pa_sample_spec *ss,
-        const pa_channel_map *map,
-        const pa_buffer_attr *attr,
-        int *rerror)
-{
-    int r;
-    pa_stream *stream;
-
-    pa_threaded_mainloop_lock (g->mainloop);
-
-    stream = pa_stream_new (g->context, name, ss, map);
-    if (!stream) {
-        goto fail;
-    }
-
-    pa_stream_set_state_callback (stream, stream_state_cb, g);
-    pa_stream_set_read_callback (stream, stream_request_cb, g);
-    pa_stream_set_write_callback (stream, stream_request_cb, g);
-
-    if (dir == PA_STREAM_PLAYBACK) {
-        r = pa_stream_connect_playback (stream, dev, attr,
-                                        PA_STREAM_INTERPOLATE_TIMING
-#ifdef PA_STREAM_ADJUST_LATENCY
-                                        |PA_STREAM_ADJUST_LATENCY
-#endif
-                                        |PA_STREAM_AUTO_TIMING_UPDATE, NULL, NULL);
-    } else {
-        r = pa_stream_connect_record (stream, dev, attr,
-                                      PA_STREAM_INTERPOLATE_TIMING
-#ifdef PA_STREAM_ADJUST_LATENCY
-                                      |PA_STREAM_ADJUST_LATENCY
-#endif
-                                      |PA_STREAM_AUTO_TIMING_UPDATE);
-    }
-
-    if (r < 0) {
-      goto fail;
-    }
-
-    pa_threaded_mainloop_unlock (g->mainloop);
-
-    return stream;
-
-fail:
-    pa_threaded_mainloop_unlock (g->mainloop);
-
-    if (stream) {
-        pa_stream_unref (stream);
-    }
-
-    *rerror = pa_context_errno (g->context);
-
-    return NULL;
-}
-
-static int qpa_init_out(HWVoiceOut *hw, struct audsettings *as,
-                        void *drv_opaque)
+static int qpa_init_out (HWVoiceOut *hw, struct audsettings *as)
 {
     int error;
-    pa_sample_spec ss;
-    pa_buffer_attr ba;
+    static pa_sample_spec ss;
     struct audsettings obt_as = *as;
     PAVoiceOut *pa = (PAVoiceOut *) hw;
-    paaudio *g = pa->g = drv_opaque;
 
     ss.format = audfmt_to_pa (as->fmt, as->endianness);
     ss.channels = as->nchannels;
     ss.rate = as->freq;
 
-    /*
-     * qemu audio tick runs at 100 Hz (by default), so processing
-     * data chunks worth 10 ms of sound should be a good fit.
-     */
-    ba.tlength = pa_usec_to_bytes (10 * 1000, &ss);
-    ba.minreq = pa_usec_to_bytes (5 * 1000, &ss);
-    ba.maxlength = -1;
-    ba.prebuf = -1;
-
     obt_as.fmt = pa_to_audfmt (ss.format, &obt_as.endianness);
 
-    pa->stream = qpa_simple_new (
-        g,
+    pa->s = pa_simple_new (
+        conf.server,
         "qemu",
         PA_STREAM_PLAYBACK,
-        g->conf.sink,
+        conf.sink,
+        "pcm.playback",
         &ss,
         NULL,                   /* channel map */
-        &ba,                    /* buffering attributes */
+        NULL,                   /* buffering attributes */
         &error
         );
-    if (!pa->stream) {
+    if (!pa->s) {
         qpa_logerr (error, "pa_simple_new for playback failed\n");
         goto fail1;
     }
 
     audio_pcm_init_info (&hw->info, &obt_as);
-    hw->samples = g->conf.samples;
+    hw->samples = conf.samples;
     pa->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
-    pa->rpos = hw->rpos;
     if (!pa->pcm_buf) {
         dolog ("Could not allocate buffer (%d bytes)\n",
                hw->samples << hw->info.shift);
@@ -594,24 +336,21 @@ static int qpa_init_out(HWVoiceOut *hw, struct audsettings *as,
     return 0;
 
  fail3:
-    g_free (pa->pcm_buf);
+    qemu_free (pa->pcm_buf);
     pa->pcm_buf = NULL;
  fail2:
-    if (pa->stream) {
-        pa_stream_unref (pa->stream);
-        pa->stream = NULL;
-    }
+    pa_simple_free (pa->s);
+    pa->s = NULL;
  fail1:
     return -1;
 }
 
-static int qpa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
+static int qpa_init_in (HWVoiceIn *hw, struct audsettings *as)
 {
     int error;
-    pa_sample_spec ss;
+    static pa_sample_spec ss;
     struct audsettings obt_as = *as;
     PAVoiceIn *pa = (PAVoiceIn *) hw;
-    paaudio *g = pa->g = drv_opaque;
 
     ss.format = audfmt_to_pa (as->fmt, as->endianness);
     ss.channels = as->nchannels;
@@ -619,25 +358,25 @@ static int qpa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
 
     obt_as.fmt = pa_to_audfmt (ss.format, &obt_as.endianness);
 
-    pa->stream = qpa_simple_new (
-        g,
+    pa->s = pa_simple_new (
+        conf.server,
         "qemu",
         PA_STREAM_RECORD,
-        g->conf.source,
+        conf.source,
+        "pcm.capture",
         &ss,
         NULL,                   /* channel map */
         NULL,                   /* buffering attributes */
         &error
         );
-    if (!pa->stream) {
+    if (!pa->s) {
         qpa_logerr (error, "pa_simple_new for capture failed\n");
         goto fail1;
     }
 
     audio_pcm_init_info (&hw->info, &obt_as);
-    hw->samples = g->conf.samples;
+    hw->samples = conf.samples;
     pa->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
-    pa->wpos = hw->wpos;
     if (!pa->pcm_buf) {
         dolog ("Could not allocate buffer (%d bytes)\n",
                hw->samples << hw->info.shift);
@@ -651,13 +390,11 @@ static int qpa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
     return 0;
 
  fail3:
-    g_free (pa->pcm_buf);
+    qemu_free (pa->pcm_buf);
     pa->pcm_buf = NULL;
  fail2:
-    if (pa->stream) {
-        pa_stream_unref (pa->stream);
-        pa->stream = NULL;
-    }
+    pa_simple_free (pa->s);
+    pa->s = NULL;
  fail1:
     return -1;
 }
@@ -672,13 +409,13 @@ static void qpa_fini_out (HWVoiceOut *hw)
     audio_pt_unlock_and_signal (&pa->pt, AUDIO_FUNC);
     audio_pt_join (&pa->pt, &ret, AUDIO_FUNC);
 
-    if (pa->stream) {
-        pa_stream_unref (pa->stream);
-        pa->stream = NULL;
+    if (pa->s) {
+        pa_simple_free (pa->s);
+        pa->s = NULL;
     }
 
     audio_pt_fini (&pa->pt, AUDIO_FUNC);
-    g_free (pa->pcm_buf);
+    qemu_free (pa->pcm_buf);
     pa->pcm_buf = NULL;
 }
 
@@ -692,232 +429,70 @@ static void qpa_fini_in (HWVoiceIn *hw)
     audio_pt_unlock_and_signal (&pa->pt, AUDIO_FUNC);
     audio_pt_join (&pa->pt, &ret, AUDIO_FUNC);
 
-    if (pa->stream) {
-        pa_stream_unref (pa->stream);
-        pa->stream = NULL;
+    if (pa->s) {
+        pa_simple_free (pa->s);
+        pa->s = NULL;
     }
 
     audio_pt_fini (&pa->pt, AUDIO_FUNC);
-    g_free (pa->pcm_buf);
+    qemu_free (pa->pcm_buf);
     pa->pcm_buf = NULL;
 }
 
 static int qpa_ctl_out (HWVoiceOut *hw, int cmd, ...)
 {
-    PAVoiceOut *pa = (PAVoiceOut *) hw;
-    pa_operation *op;
-    pa_cvolume v;
-    paaudio *g = pa->g;
-
-#ifdef PA_CHECK_VERSION    /* macro is present in 0.9.16+ */
-    pa_cvolume_init (&v);  /* function is present in 0.9.13+ */
-#endif
-
-    switch (cmd) {
-    case VOICE_VOLUME:
-        {
-            SWVoiceOut *sw;
-            va_list ap;
-
-            va_start (ap, cmd);
-            sw = va_arg (ap, SWVoiceOut *);
-            va_end (ap);
-
-            v.channels = 2;
-            v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;
-            v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;
-
-            pa_threaded_mainloop_lock (g->mainloop);
-
-            op = pa_context_set_sink_input_volume (g->context,
-                pa_stream_get_index (pa->stream),
-                &v, NULL, NULL);
-            if (!op)
-                qpa_logerr (pa_context_errno (g->context),
-                            "set_sink_input_volume() failed\n");
-            else
-                pa_operation_unref (op);
-
-            op = pa_context_set_sink_input_mute (g->context,
-                pa_stream_get_index (pa->stream),
-               sw->vol.mute, NULL, NULL);
-            if (!op) {
-                qpa_logerr (pa_context_errno (g->context),
-                            "set_sink_input_mute() failed\n");
-            } else {
-                pa_operation_unref (op);
-            }
-
-            pa_threaded_mainloop_unlock (g->mainloop);
-        }
-    }
+    (void) hw;
+    (void) cmd;
     return 0;
 }
 
 static int qpa_ctl_in (HWVoiceIn *hw, int cmd, ...)
 {
-    PAVoiceIn *pa = (PAVoiceIn *) hw;
-    pa_operation *op;
-    pa_cvolume v;
-    paaudio *g = pa->g;
-
-#ifdef PA_CHECK_VERSION
-    pa_cvolume_init (&v);
-#endif
-
-    switch (cmd) {
-    case VOICE_VOLUME:
-        {
-            SWVoiceIn *sw;
-            va_list ap;
-
-            va_start (ap, cmd);
-            sw = va_arg (ap, SWVoiceIn *);
-            va_end (ap);
-
-            v.channels = 2;
-            v.values[0] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.l) / UINT32_MAX;
-            v.values[1] = ((PA_VOLUME_NORM - PA_VOLUME_MUTED) * sw->vol.r) / UINT32_MAX;
-
-            pa_threaded_mainloop_lock (g->mainloop);
-
-            op = pa_context_set_source_output_volume (g->context,
-                pa_stream_get_index (pa->stream),
-                &v, NULL, NULL);
-            if (!op) {
-                qpa_logerr (pa_context_errno (g->context),
-                            "set_source_output_volume() failed\n");
-            } else {
-                pa_operation_unref(op);
-            }
-
-            op = pa_context_set_source_output_mute (g->context,
-                pa_stream_get_index (pa->stream),
-                sw->vol.mute, NULL, NULL);
-            if (!op) {
-                qpa_logerr (pa_context_errno (g->context),
-                            "set_source_output_mute() failed\n");
-            } else {
-                pa_operation_unref (op);
-            }
-
-            pa_threaded_mainloop_unlock (g->mainloop);
-        }
-    }
+    (void) hw;
+    (void) cmd;
     return 0;
 }
 
 /* common */
-static PAConf glob_conf = {
-    .samples = 4096,
-};
-
 static void *qpa_audio_init (void)
 {
-    paaudio *g = g_malloc(sizeof(paaudio));
-    g->conf = glob_conf;
-    g->mainloop = NULL;
-    g->context = NULL;
-
-    g->mainloop = pa_threaded_mainloop_new ();
-    if (!g->mainloop) {
-        goto fail;
-    }
-
-    g->context = pa_context_new (pa_threaded_mainloop_get_api (g->mainloop),
-                                 g->conf.server);
-    if (!g->context) {
-        goto fail;
-    }
-
-    pa_context_set_state_callback (g->context, context_state_cb, g);
-
-    if (pa_context_connect (g->context, g->conf.server, 0, NULL) < 0) {
-        qpa_logerr (pa_context_errno (g->context),
-                    "pa_context_connect() failed\n");
-        goto fail;
-    }
-
-    pa_threaded_mainloop_lock (g->mainloop);
-
-    if (pa_threaded_mainloop_start (g->mainloop) < 0) {
-        goto unlock_and_fail;
-    }
-
-    for (;;) {
-        pa_context_state_t state;
-
-        state = pa_context_get_state (g->context);
-
-        if (state == PA_CONTEXT_READY) {
-            break;
-        }
-
-        if (!PA_CONTEXT_IS_GOOD (state)) {
-            qpa_logerr (pa_context_errno (g->context),
-                        "Wrong context state\n");
-            goto unlock_and_fail;
-        }
-
-        /* Wait until the context is ready */
-        pa_threaded_mainloop_wait (g->mainloop);
-    }
-
-    pa_threaded_mainloop_unlock (g->mainloop);
-
-    return g;
-
-unlock_and_fail:
-    pa_threaded_mainloop_unlock (g->mainloop);
-fail:
-    AUD_log (AUDIO_CAP, "Failed to initialize PA context");
-    qpa_audio_fini(g);
-    return NULL;
+    return &conf;
 }
 
 static void qpa_audio_fini (void *opaque)
 {
-    paaudio *g = opaque;
-
-    if (g->mainloop) {
-        pa_threaded_mainloop_stop (g->mainloop);
-    }
-
-    if (g->context) {
-        pa_context_disconnect (g->context);
-        pa_context_unref (g->context);
-    }
-
-    if (g->mainloop) {
-        pa_threaded_mainloop_free (g->mainloop);
-    }
-
-    g_free(g);
+    (void) opaque;
 }
 
 struct audio_option qpa_options[] = {
     {
         .name  = "SAMPLES",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.samples,
+        .valp  = &conf.samples,
         .descr = "buffer size in samples"
     },
+    {
+        .name  = "DIVISOR",
+        .tag   = AUD_OPT_INT,
+        .valp  = &conf.divisor,
+        .descr = "threshold divisor"
+    },
     {
         .name  = "SERVER",
         .tag   = AUD_OPT_STR,
-        .valp  = &glob_conf.server,
+        .valp  = &conf.server,
         .descr = "server address"
     },
     {
         .name  = "SINK",
         .tag   = AUD_OPT_STR,
-        .valp  = &glob_conf.sink,
+        .valp  = &conf.sink,
         .descr = "sink device name"
     },
     {
         .name  = "SOURCE",
         .tag   = AUD_OPT_STR,
-        .valp  = &glob_conf.source,
+        .valp  = &conf.source,
         .descr = "source device name"
     },
     { /* End of list */ }
@@ -948,6 +523,5 @@ struct audio_driver pa_audio_driver = {
     .max_voices_out = INT_MAX,
     .max_voices_in  = INT_MAX,
     .voice_size_out = sizeof (PAVoiceOut),
-    .voice_size_in  = sizeof (PAVoiceIn),
-    .ctl_caps       = VOICE_VOLUME_CAP
+    .voice_size_in  = sizeof (PAVoiceIn)
 };

audio/sdlaudio.c

@@ -21,7 +21,6 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "qemu/osdep.h"
 #include <SDL.h>
 #include <SDL_thread.h>
 #include "qemu-common.h"
@@ -33,20 +32,17 @@
 #elif defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
 #include <pthread.h>
 #endif
+#include <signal.h>
 #endif
 
 #define AUDIO_CAP "sdl"
 #include "audio_int.h"
 
-#define USE_SEMAPHORE (SDL_MAJOR_VERSION < 2)
-
 typedef struct SDLVoiceOut {
     HWVoiceOut hw;
     int live;
-#if USE_SEMAPHORE
-    int rpos;
-#endif
     int decr;
+    int pending;
 } SDLVoiceOut;
 
 static struct {
@@ -57,12 +53,9 @@ static struct {
 
 static struct SDLAudioState {
     int exit;
-#if USE_SEMAPHORE
     SDL_mutex *mutex;
     SDL_sem *sem;
-#endif
     int initialized;
-    bool driver_created;
 } glob_sdl;
 typedef struct SDLAudioState SDLAudioState;
 
@@ -79,45 +72,31 @@ static void GCC_FMT_ATTR (1, 2) sdl_logerr (const char *fmt, ...)
 
 static int sdl_lock (SDLAudioState *s, const char *forfn)
 {
-#if USE_SEMAPHORE
     if (SDL_LockMutex (s->mutex)) {
         sdl_logerr ("SDL_LockMutex for %s failed\n", forfn);
         return -1;
     }
-#else
-    SDL_LockAudio();
-#endif
-
     return 0;
 }
 
 static int sdl_unlock (SDLAudioState *s, const char *forfn)
 {
-#if USE_SEMAPHORE
     if (SDL_UnlockMutex (s->mutex)) {
         sdl_logerr ("SDL_UnlockMutex for %s failed\n", forfn);
         return -1;
     }
-#else
-    SDL_UnlockAudio();
-#endif
-
     return 0;
 }
 
 static int sdl_post (SDLAudioState *s, const char *forfn)
 {
-#if USE_SEMAPHORE
     if (SDL_SemPost (s->sem)) {
         sdl_logerr ("SDL_SemPost for %s failed\n", forfn);
         return -1;
     }
-#endif
-
     return 0;
 }
 
-#if USE_SEMAPHORE
 static int sdl_wait (SDLAudioState *s, const char *forfn)
 {
     if (SDL_SemWait (s->sem)) {
@@ -126,7 +105,6 @@ static int sdl_wait (SDLAudioState *s, const char *forfn)
     }
     return 0;
 }
-#endif
 
 static int sdl_unlock_and_post (SDLAudioState *s, const char *forfn)
 {
@@ -137,19 +115,23 @@ static int sdl_unlock_and_post (SDLAudioState *s, const char *forfn)
     return sdl_post (s, forfn);
 }
 
-static int aud_to_sdlfmt (audfmt_e fmt)
+static int aud_to_sdlfmt (audfmt_e fmt, int *shift)
 {
     switch (fmt) {
     case AUD_FMT_S8:
+        *shift = 0;
         return AUDIO_S8;
 
     case AUD_FMT_U8:
+        *shift = 0;
         return AUDIO_U8;
 
     case AUD_FMT_S16:
+        *shift = 1;
         return AUDIO_S16LSB;
 
     case AUD_FMT_U16:
+        *shift = 1;
         return AUDIO_U16LSB;
 
     default:
@@ -161,36 +143,36 @@ static int aud_to_sdlfmt (audfmt_e fmt)
     }
 }
 
-static int sdl_to_audfmt(int sdlfmt, audfmt_e *fmt, int *endianness)
+static int sdl_to_audfmt (int sdlfmt, audfmt_e *fmt, int *endianess)
 {
     switch (sdlfmt) {
     case AUDIO_S8:
-        *endianness = 0;
+        *endianess = 0;
         *fmt = AUD_FMT_S8;
         break;
 
     case AUDIO_U8:
-        *endianness = 0;
+        *endianess = 0;
         *fmt = AUD_FMT_U8;
         break;
 
     case AUDIO_S16LSB:
-        *endianness = 0;
+        *endianess = 0;
         *fmt = AUD_FMT_S16;
         break;
 
     case AUDIO_U16LSB:
-        *endianness = 0;
+        *endianess = 0;
         *fmt = AUD_FMT_U16;
         break;
 
     case AUDIO_S16MSB:
-        *endianness = 1;
+        *endianess = 1;
         *fmt = AUD_FMT_S16;
         break;
 
     case AUDIO_U16MSB:
-        *endianness = 1;
+        *endianess = 1;
         *fmt = AUD_FMT_U16;
         break;
 
@@ -206,20 +188,11 @@ static int sdl_open (SDL_AudioSpec *req, SDL_AudioSpec *obt)
 {
     int status;
 #ifndef _WIN32
-    int err;
     sigset_t new, old;
 
     /* Make sure potential threads created by SDL don't hog signals.  */
-    err = sigfillset (&new);
-    if (err) {
-        dolog ("sdl_open: sigfillset failed: %s\n", strerror (errno));
-        return -1;
-    }
-    err = pthread_sigmask (SIG_BLOCK, &new, &old);
-    if (err) {
-        dolog ("sdl_open: pthread_sigmask failed: %s\n", strerror (err));
-        return -1;
-    }
+    sigfillset (&new);
+    pthread_sigmask (SIG_BLOCK, &new, &old);
 #endif
 
     status = SDL_OpenAudio (req, obt);
@@ -228,14 +201,7 @@ static int sdl_open (SDL_AudioSpec *req, SDL_AudioSpec *obt)
     }
 
 #ifndef _WIN32
-    err = pthread_sigmask (SIG_SETMASK, &old, NULL);
-    if (err) {
-        dolog ("sdl_open: pthread_sigmask (restore) failed: %s\n",
-               strerror (errno));
-        /* We have failed to restore original signal mask, all bets are off,
-           so exit the process */
-        exit (EXIT_FAILURE);
-    }
+    pthread_sigmask (SIG_SETMASK, &old, NULL);
 #endif
     return status;
 }
@@ -259,6 +225,10 @@ static void sdl_callback (void *opaque, Uint8 *buf, int len)
     HWVoiceOut *hw = &sdl->hw;
     int samples = len >> hw->info.shift;
 
+    if (sdl_lock (s, "sdl_callback")) {
+        return;
+    }
+
     if (s->exit) {
         return;
     }
@@ -266,68 +236,34 @@ static void sdl_callback (void *opaque, Uint8 *buf, int len)
     while (samples) {
         int to_mix, decr;
 
-        /* dolog ("in callback samples=%d\n", samples); */
-#if USE_SEMAPHORE
-        sdl_wait (s, "sdl_callback");
-        if (s->exit) {
-            return;
+        while (!sdl->pending) {
+            if (sdl_unlock (s, "sdl_callback")) {
+                return;
+            }
+
+            sdl_wait (s, "sdl_callback");
+            if (s->exit) {
+                return;
+            }
+
+            if (sdl_lock (s, "sdl_callback")) {
+                return;
+            }
+            sdl->pending += sdl->live;
+            sdl->live = 0;
         }
 
-        if (sdl_lock (s, "sdl_callback")) {
-            return;
-        }
-
-        if (audio_bug (AUDIO_FUNC, sdl->live < 0 || sdl->live > hw->samples)) {
-            dolog ("sdl->live=%d hw->samples=%d\n",
-                   sdl->live, hw->samples);
-            return;
-        }
-
-        if (!sdl->live) {
-            goto again;
-        }
-#else
-        if (s->exit || !sdl->live) {
-            break;
-        }
-#endif
-
-        /* dolog ("in callback live=%d\n", live); */
-        to_mix = audio_MIN (samples, sdl->live);
-        decr = to_mix;
-        while (to_mix) {
-            int chunk = audio_MIN (to_mix, hw->samples - hw->rpos);
-            struct st_sample *src = hw->mix_buf + hw->rpos;
-
-            /* dolog ("in callback to_mix %d, chunk %d\n", to_mix, chunk); */
-            hw->clip (buf, src, chunk);
-#if USE_SEMAPHORE
-            sdl->rpos = (sdl->rpos + chunk) % hw->samples;
-#else
-            hw->rpos = (hw->rpos + chunk) % hw->samples;
-#endif
-            to_mix -= chunk;
-            buf += chunk << hw->info.shift;
-        }
+        to_mix = audio_MIN (samples, sdl->pending);
+        decr = audio_pcm_hw_clip_out (hw, buf, to_mix, 0);
+        buf += decr << hw->info.shift;
         samples -= decr;
-        sdl->live -= decr;
         sdl->decr += decr;
-
-#if USE_SEMAPHORE
-    again:
-        if (sdl_unlock (s, "sdl_callback")) {
-            return;
-        }
-#endif
+        sdl->pending -= decr;
     }
-    /* dolog ("done len=%d\n", len); */
 
-#if (SDL_MAJOR_VERSION >= 2)
-    /* SDL2 does not clear the remaining buffer for us, so do it on our own */
-    if (samples) {
-        memset(buf, 0, samples << hw->info.shift);
+    if (sdl_unlock (s, "sdl_callback")) {
+        return;
     }
-#endif
 }
 
 static int sdl_write_out (SWVoiceOut *sw, void *buf, int len)
@@ -345,22 +281,9 @@ static int sdl_run_out (HWVoiceOut *hw, int live)
         return 0;
     }
 
-    if (sdl->decr > live) {
-        ldebug ("sdl->decr %d live %d sdl->live %d\n",
-                sdl->decr,
-                live,
-                sdl->live);
-    }
-
-    decr = audio_MIN (sdl->decr, live);
-    sdl->decr -= decr;
-
-#if USE_SEMAPHORE
-    sdl->live = live - decr;
-    hw->rpos = sdl->rpos;
-#else
     sdl->live = live;
-#endif
+    decr = sdl->decr;
+    sdl->decr = 0;
 
     if (sdl->live > 0) {
         sdl_unlock_and_post (s, "sdl_run_out");
@@ -378,19 +301,21 @@ static void sdl_fini_out (HWVoiceOut *hw)
     sdl_close (&glob_sdl);
 }
 
-static int sdl_init_out(HWVoiceOut *hw, struct audsettings *as,
-                        void *drv_opaque)
+static int sdl_init_out (HWVoiceOut *hw, struct audsettings *as)
 {
     SDLVoiceOut *sdl = (SDLVoiceOut *) hw;
     SDLAudioState *s = &glob_sdl;
     SDL_AudioSpec req, obt;
-    int endianness;
+    int shift;
+    int endianess;
     int err;
     audfmt_e effective_fmt;
     struct audsettings obt_as;
 
+    shift <<= as->nchannels == 2;
+
     req.freq = as->freq;
-    req.format = aud_to_sdlfmt (as->fmt);
+    req.format = aud_to_sdlfmt (as->fmt, &shift);
     req.channels = as->nchannels;
     req.samples = conf.nb_samples;
     req.callback = sdl_callback;
@@ -400,7 +325,7 @@ static int sdl_init_out(HWVoiceOut *hw, struct audsettings *as,
         return -1;
     }
 
-    err = sdl_to_audfmt(obt.format, &effective_fmt, &endianness);
+    err = sdl_to_audfmt (obt.format, &effective_fmt, &endianess);
     if (err) {
         sdl_close (s);
         return -1;
@@ -409,7 +334,7 @@ static int sdl_init_out(HWVoiceOut *hw, struct audsettings *as,
     obt_as.freq = obt.freq;
     obt_as.nchannels = obt.channels;
     obt_as.fmt = effective_fmt;
-    obt_as.endianness = endianness;
+    obt_as.endianness = endianess;
 
     audio_pcm_init_info (&hw->info, &obt_as);
     hw->samples = obt.samples;
@@ -439,17 +364,12 @@ static int sdl_ctl_out (HWVoiceOut *hw, int cmd, ...)
 static void *sdl_audio_init (void)
 {
     SDLAudioState *s = &glob_sdl;
-    if (s->driver_created) {
-        sdl_logerr("Can't create multiple sdl backends\n");
-        return NULL;
-    }
 
     if (SDL_InitSubSystem (SDL_INIT_AUDIO)) {
         sdl_logerr ("SDL failed to initialize audio subsystem\n");
         return NULL;
     }
 
-#if USE_SEMAPHORE
     s->mutex = SDL_CreateMutex ();
     if (!s->mutex) {
         sdl_logerr ("Failed to create SDL mutex\n");
@@ -464,9 +384,7 @@ static void *sdl_audio_init (void)
         SDL_QuitSubSystem (SDL_INIT_AUDIO);
         return NULL;
     }
-#endif
 
-    s->driver_created = true;
     return s;
 }
 
@@ -474,12 +392,9 @@ static void sdl_audio_fini (void *opaque)
 {
     SDLAudioState *s = opaque;
     sdl_close (s);
-#if USE_SEMAPHORE
     SDL_DestroySemaphore (s->sem);
     SDL_DestroyMutex (s->mutex);
-#endif
     SDL_QuitSubSystem (SDL_INIT_AUDIO);
-    s->driver_created = false;
 }
 
 static struct audio_option sdl_options[] = {

audio/spiceaudio.c

@@ -1,413 +0,0 @@
-/*
- * Copyright (C) 2010 Red Hat, Inc.
- *
- * maintained by Gerd Hoffmann <kraxel@redhat.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 or
- * (at your option) version 3 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "hw/hw.h"
-#include "qemu/host-utils.h"
-#include "qemu/error-report.h"
-#include "qemu/timer.h"
-#include "ui/qemu-spice.h"
-
-#define AUDIO_CAP "spice"
-#include "audio.h"
-#include "audio_int.h"
-
-#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
-#define LINE_OUT_SAMPLES (480 * 4)
-#else
-#define LINE_OUT_SAMPLES (256 * 4)
-#endif
-
-#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
-#define LINE_IN_SAMPLES (480 * 4)
-#else
-#define LINE_IN_SAMPLES (256 * 4)
-#endif
-
-typedef struct SpiceRateCtl {
-    int64_t               start_ticks;
-    int64_t               bytes_sent;
-} SpiceRateCtl;
-
-typedef struct SpiceVoiceOut {
-    HWVoiceOut            hw;
-    SpicePlaybackInstance sin;
-    SpiceRateCtl          rate;
-    int                   active;
-    uint32_t              *frame;
-    uint32_t              *fpos;
-    uint32_t              fsize;
-} SpiceVoiceOut;
-
-typedef struct SpiceVoiceIn {
-    HWVoiceIn             hw;
-    SpiceRecordInstance   sin;
-    SpiceRateCtl          rate;
-    int                   active;
-    uint32_t              samples[LINE_IN_SAMPLES];
-} SpiceVoiceIn;
-
-static const SpicePlaybackInterface playback_sif = {
-    .base.type          = SPICE_INTERFACE_PLAYBACK,
-    .base.description   = "playback",
-    .base.major_version = SPICE_INTERFACE_PLAYBACK_MAJOR,
-    .base.minor_version = SPICE_INTERFACE_PLAYBACK_MINOR,
-};
-
-static const SpiceRecordInterface record_sif = {
-    .base.type          = SPICE_INTERFACE_RECORD,
-    .base.description   = "record",
-    .base.major_version = SPICE_INTERFACE_RECORD_MAJOR,
-    .base.minor_version = SPICE_INTERFACE_RECORD_MINOR,
-};
-
-static void *spice_audio_init (void)
-{
-    if (!using_spice) {
-        return NULL;
-    }
-    return &spice_audio_init;
-}
-
-static void spice_audio_fini (void *opaque)
-{
-    /* nothing */
-}
-
-static void rate_start (SpiceRateCtl *rate)
-{
-    memset (rate, 0, sizeof (*rate));
-    rate->start_ticks = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
-}
-
-static int rate_get_samples (struct audio_pcm_info *info, SpiceRateCtl *rate)
-{
-    int64_t now;
-    int64_t ticks;
-    int64_t bytes;
-    int64_t samples;
-
-    now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
-    ticks = now - rate->start_ticks;
-    bytes = muldiv64(ticks, info->bytes_per_second, NANOSECONDS_PER_SECOND);
-    samples = (bytes - rate->bytes_sent) >> info->shift;
-    if (samples < 0 || samples > 65536) {
-        error_report("Resetting rate control (%" PRId64 " samples)", samples);
-        rate_start(rate);
-        samples = 0;
-    }
-    rate->bytes_sent += samples << info->shift;
-    return samples;
-}
-
-/* playback */
-
-static int line_out_init(HWVoiceOut *hw, struct audsettings *as,
-                         void *drv_opaque)
-{
-    SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
-    struct audsettings settings;
-
-#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
-    settings.freq       = spice_server_get_best_playback_rate(NULL);
-#else
-    settings.freq       = SPICE_INTERFACE_PLAYBACK_FREQ;
-#endif
-    settings.nchannels  = SPICE_INTERFACE_PLAYBACK_CHAN;
-    settings.fmt        = AUD_FMT_S16;
-    settings.endianness = AUDIO_HOST_ENDIANNESS;
-
-    audio_pcm_init_info (&hw->info, &settings);
-    hw->samples = LINE_OUT_SAMPLES;
-    out->active = 0;
-
-    out->sin.base.sif = &playback_sif.base;
-    qemu_spice_add_interface (&out->sin.base);
-#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
-    spice_server_set_playback_rate(&out->sin, settings.freq);
-#endif
-    return 0;
-}
-
-static void line_out_fini (HWVoiceOut *hw)
-{
-    SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
-
-    spice_server_remove_interface (&out->sin.base);
-}
-
-static int line_out_run (HWVoiceOut *hw, int live)
-{
-    SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
-    int rpos, decr;
-    int samples;
-
-    if (!live) {
-        return 0;
-    }
-
-    decr = rate_get_samples (&hw->info, &out->rate);
-    decr = audio_MIN (live, decr);
-
-    samples = decr;
-    rpos = hw->rpos;
-    while (samples) {
-        int left_till_end_samples = hw->samples - rpos;
-        int len = audio_MIN (samples, left_till_end_samples);
-
-        if (!out->frame) {
-            spice_server_playback_get_buffer (&out->sin, &out->frame, &out->fsize);
-            out->fpos = out->frame;
-        }
-        if (out->frame) {
-            len = audio_MIN (len, out->fsize);
-            hw->clip (out->fpos, hw->mix_buf + rpos, len);
-            out->fsize -= len;
-            out->fpos  += len;
-            if (out->fsize == 0) {
-                spice_server_playback_put_samples (&out->sin, out->frame);
-                out->frame = out->fpos = NULL;
-            }
-        }
-        rpos = (rpos + len) % hw->samples;
-        samples -= len;
-    }
-    hw->rpos = rpos;
-    return decr;
-}
-
-static int line_out_write (SWVoiceOut *sw, void *buf, int len)
-{
-    return audio_pcm_sw_write (sw, buf, len);
-}
-
-static int line_out_ctl (HWVoiceOut *hw, int cmd, ...)
-{
-    SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
-
-    switch (cmd) {
-    case VOICE_ENABLE:
-        if (out->active) {
-            break;
-        }
-        out->active = 1;
-        rate_start (&out->rate);
-        spice_server_playback_start (&out->sin);
-        break;
-    case VOICE_DISABLE:
-        if (!out->active) {
-            break;
-        }
-        out->active = 0;
-        if (out->frame) {
-            memset (out->fpos, 0, out->fsize << 2);
-            spice_server_playback_put_samples (&out->sin, out->frame);
-            out->frame = out->fpos = NULL;
-        }
-        spice_server_playback_stop (&out->sin);
-        break;
-    case VOICE_VOLUME:
-        {
-#if ((SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && (SPICE_INTERFACE_PLAYBACK_MINOR >= 2))
-            SWVoiceOut *sw;
-            va_list ap;
-            uint16_t vol[2];
-
-            va_start (ap, cmd);
-            sw = va_arg (ap, SWVoiceOut *);
-            va_end (ap);
-
-            vol[0] = sw->vol.l / ((1ULL << 16) + 1);
-            vol[1] = sw->vol.r / ((1ULL << 16) + 1);
-            spice_server_playback_set_volume (&out->sin, 2, vol);
-            spice_server_playback_set_mute (&out->sin, sw->vol.mute);
-#endif
-            break;
-        }
-    }
-
-    return 0;
-}
-
-/* record */
-
-static int line_in_init(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
-{
-    SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
-    struct audsettings settings;
-
-#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
-    settings.freq       = spice_server_get_best_record_rate(NULL);
-#else
-    settings.freq       = SPICE_INTERFACE_RECORD_FREQ;
-#endif
-    settings.nchannels  = SPICE_INTERFACE_RECORD_CHAN;
-    settings.fmt        = AUD_FMT_S16;
-    settings.endianness = AUDIO_HOST_ENDIANNESS;
-
-    audio_pcm_init_info (&hw->info, &settings);
-    hw->samples = LINE_IN_SAMPLES;
-    in->active = 0;
-
-    in->sin.base.sif = &record_sif.base;
-    qemu_spice_add_interface (&in->sin.base);
-#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
-    spice_server_set_record_rate(&in->sin, settings.freq);
-#endif
-    return 0;
-}
-
-static void line_in_fini (HWVoiceIn *hw)
-{
-    SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
-
-    spice_server_remove_interface (&in->sin.base);
-}
-
-static int line_in_run (HWVoiceIn *hw)
-{
-    SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
-    int num_samples;
-    int ready;
-    int len[2];
-    uint64_t delta_samp;
-    const uint32_t *samples;
-
-    if (!(num_samples = hw->samples - audio_pcm_hw_get_live_in (hw))) {
-        return 0;
-    }
-
-    delta_samp = rate_get_samples (&hw->info, &in->rate);
-    num_samples = audio_MIN (num_samples, delta_samp);
-
-    ready = spice_server_record_get_samples (&in->sin, in->samples, num_samples);
-    samples = in->samples;
-    if (ready == 0) {
-        static const uint32_t silence[LINE_IN_SAMPLES];
-        samples = silence;
-        ready = LINE_IN_SAMPLES;
-    }
-
-    num_samples = audio_MIN (ready, num_samples);
-
-    if (hw->wpos + num_samples > hw->samples) {
-        len[0] = hw->samples - hw->wpos;
-        len[1] = num_samples - len[0];
-    } else {
-        len[0] = num_samples;
-        len[1] = 0;
-    }
-
-    hw->conv (hw->conv_buf + hw->wpos, samples, len[0]);
-
-    if (len[1]) {
-        hw->conv (hw->conv_buf, samples + len[0], len[1]);
-    }
-
-    hw->wpos = (hw->wpos + num_samples) % hw->samples;
-
-    return num_samples;
-}
-
-static int line_in_read (SWVoiceIn *sw, void *buf, int size)
-{
-    return audio_pcm_sw_read (sw, buf, size);
-}
-
-static int line_in_ctl (HWVoiceIn *hw, int cmd, ...)
-{
-    SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
-
-    switch (cmd) {
-    case VOICE_ENABLE:
-        if (in->active) {
-            break;
-        }
-        in->active = 1;
-        rate_start (&in->rate);
-        spice_server_record_start (&in->sin);
-        break;
-    case VOICE_DISABLE:
-        if (!in->active) {
-            break;
-        }
-        in->active = 0;
-        spice_server_record_stop (&in->sin);
-        break;
-    case VOICE_VOLUME:
-        {
-#if ((SPICE_INTERFACE_RECORD_MAJOR >= 2) && (SPICE_INTERFACE_RECORD_MINOR >= 2))
-            SWVoiceIn *sw;
-            va_list ap;
-            uint16_t vol[2];
-
-            va_start (ap, cmd);
-            sw = va_arg (ap, SWVoiceIn *);
-            va_end (ap);
-
-            vol[0] = sw->vol.l / ((1ULL << 16) + 1);
-            vol[1] = sw->vol.r / ((1ULL << 16) + 1);
-            spice_server_record_set_volume (&in->sin, 2, vol);
-            spice_server_record_set_mute (&in->sin, sw->vol.mute);
-#endif
-            break;
-        }
-    }
-
-    return 0;
-}
-
-static struct audio_option audio_options[] = {
-    { /* end of list */ },
-};
-
-static struct audio_pcm_ops audio_callbacks = {
-    .init_out = line_out_init,
-    .fini_out = line_out_fini,
-    .run_out  = line_out_run,
-    .write    = line_out_write,
-    .ctl_out  = line_out_ctl,
-
-    .init_in  = line_in_init,
-    .fini_in  = line_in_fini,
-    .run_in   = line_in_run,
-    .read     = line_in_read,
-    .ctl_in   = line_in_ctl,
-};
-
-struct audio_driver spice_audio_driver = {
-    .name           = "spice",
-    .descr          = "spice audio driver",
-    .options        = audio_options,
-    .init           = spice_audio_init,
-    .fini           = spice_audio_fini,
-    .pcm_ops        = &audio_callbacks,
-    .max_voices_out = 1,
-    .max_voices_in  = 1,
-    .voice_size_out = sizeof (SpiceVoiceOut),
-    .voice_size_in  = sizeof (SpiceVoiceIn),
-#if ((SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && (SPICE_INTERFACE_PLAYBACK_MINOR >= 2))
-    .ctl_caps       = VOICE_VOLUME_CAP
-#endif
-};
-
-void qemu_spice_audio_init (void)
-{
-    spice_audio_driver.can_be_default = 1;
-}

audio/trace-events

@@ -1,17 +0,0 @@
-# See docs/tracing.txt for syntax documentation.
-
-# audio/alsaaudio.c
-alsa_revents(int revents) "revents = %d"
-alsa_pollout(int i, int fd) "i = %d fd = %d"
-alsa_set_handler(int events, int index, int fd, int err) "events=%#x index=%d fd=%d err=%d"
-alsa_wrote_zero(int len) "Failed to write %d frames (wrote zero)"
-alsa_read_zero(long len) "Failed to read %ld frames (read zero)"
-alsa_xrun_out(void) "Recovering from playback xrun"
-alsa_xrun_in(void) "Recovering from capture xrun"
-alsa_resume_out(void) "Resuming suspended output stream"
-alsa_resume_in(void) "Resuming suspended input stream"
-alsa_no_frames(int state) "No frames available and ALSA state is %d"
-
-# audio/ossaudio.c
-oss_version(int version) "OSS version = %#x"
-oss_invalid_available_size(int size, int bufsize) "Invalid available size, size=%d bufsize=%d"

audio/wavaudio.c

@@ -21,9 +21,8 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "qemu/osdep.h"
-#include "qemu/host-utils.h"
-#include "qemu/timer.h"
+#include "hw/hw.h"
+#include "qemu-timer.h"
 #include "audio.h"
 
 #define AUDIO_CAP "wav"
@@ -31,16 +30,21 @@
 
 typedef struct WAVVoiceOut {
     HWVoiceOut hw;
-    FILE *f;
+    QEMUFile *f;
     int64_t old_ticks;
     void *pcm_buf;
     int total_samples;
 } WAVVoiceOut;
 
-typedef struct {
+static struct {
     struct audsettings settings;
     const char *wav_path;
-} WAVConf;
+} conf = {
+    .settings.freq      = 44100,
+    .settings.nchannels = 2,
+    .settings.fmt       = AUD_FMT_S16,
+    .wav_path           = "qemu.wav"
+};
 
 static int wav_run_out (HWVoiceOut *hw, int live)
 {
@@ -48,10 +52,10 @@ static int wav_run_out (HWVoiceOut *hw, int live)
     int rpos, decr, samples;
     uint8_t *dst;
     struct st_sample *src;
-    int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+    int64_t now = qemu_get_clock (vm_clock);
     int64_t ticks = now - wav->old_ticks;
     int64_t bytes =
-        muldiv64(ticks, hw->info.bytes_per_second, NANOSECONDS_PER_SECOND);
+        muldiv64 (ticks, hw->info.bytes_per_second, get_ticks_per_sec ());
 
     if (bytes > INT_MAX) {
         samples = INT_MAX >> hw->info.shift;
@@ -72,10 +76,7 @@ static int wav_run_out (HWVoiceOut *hw, int live)
         dst = advance (wav->pcm_buf, rpos << hw->info.shift);
 
         hw->clip (dst, src, convert_samples);
-        if (fwrite (dst, convert_samples << hw->info.shift, 1, wav->f) != 1) {
-            dolog ("wav_run_out: fwrite of %d bytes failed\nReaons: %s\n",
-                   convert_samples << hw->info.shift, strerror (errno));
-        }
+        qemu_put_buffer (wav->f, dst, convert_samples << hw->info.shift);
 
         rpos = (rpos + convert_samples) % hw->samples;
         samples -= convert_samples;
@@ -101,8 +102,7 @@ static void le_store (uint8_t *buf, uint32_t val, int len)
     }
 }
 
-static int wav_init_out(HWVoiceOut *hw, struct audsettings *as,
-                        void *drv_opaque)
+static int wav_init_out (HWVoiceOut *hw, struct audsettings *as)
 {
     WAVVoiceOut *wav = (WAVVoiceOut *) hw;
     int bits16 = 0, stereo = 0;
@@ -112,8 +112,9 @@ static int wav_init_out(HWVoiceOut *hw, struct audsettings *as,
         0x02, 0x00, 0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04,
         0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00
     };
-    WAVConf *conf = drv_opaque;
-    struct audsettings wav_as = conf->settings;
+    struct audsettings wav_as = conf.settings;
+
+    (void) as;
 
     stereo = wav_as.nchannels == 2;
     switch (wav_as.fmt) {
@@ -151,20 +152,16 @@ static int wav_init_out(HWVoiceOut *hw, struct audsettings *as,
     le_store (hdr + 28, hw->info.freq << (bits16 + stereo), 4);
     le_store (hdr + 32, 1 << (bits16 + stereo), 2);
 
-    wav->f = fopen (conf->wav_path, "wb");
+    wav->f = qemu_fopen (conf.wav_path, "wb");
     if (!wav->f) {
         dolog ("Failed to open wave file `%s'\nReason: %s\n",
-               conf->wav_path, strerror (errno));
-        g_free (wav->pcm_buf);
+               conf.wav_path, strerror (errno));
+        qemu_free (wav->pcm_buf);
         wav->pcm_buf = NULL;
         return -1;
     }
 
-    if (fwrite (hdr, sizeof (hdr), 1, wav->f) != 1) {
-        dolog ("wav_init_out: failed to write header\nReason: %s\n",
-               strerror(errno));
-        return -1;
-    }
+    qemu_put_buffer (wav->f, hdr, sizeof (hdr));
     return 0;
 }
 
@@ -183,35 +180,16 @@ static void wav_fini_out (HWVoiceOut *hw)
     le_store (rlen, rifflen, 4);
     le_store (dlen, datalen, 4);
 
-    if (fseek (wav->f, 4, SEEK_SET)) {
-        dolog ("wav_fini_out: fseek to rlen failed\nReason: %s\n",
-               strerror(errno));
-        goto doclose;
-    }
-    if (fwrite (rlen, 4, 1, wav->f) != 1) {
-        dolog ("wav_fini_out: failed to write rlen\nReason: %s\n",
-               strerror (errno));
-        goto doclose;
-    }
-    if (fseek (wav->f, 32, SEEK_CUR)) {
-        dolog ("wav_fini_out: fseek to dlen failed\nReason: %s\n",
-               strerror (errno));
-        goto doclose;
-    }
-    if (fwrite (dlen, 4, 1, wav->f) != 1) {
-        dolog ("wav_fini_out: failed to write dlen\nReaons: %s\n",
-               strerror (errno));
-        goto doclose;
-    }
+    qemu_fseek (wav->f, 4, SEEK_SET);
+    qemu_put_buffer (wav->f, rlen, 4);
 
- doclose:
-    if (fclose (wav->f))  {
-        dolog ("wav_fini_out: fclose %p failed\nReason: %s\n",
-               wav->f, strerror (errno));
-    }
+    qemu_fseek (wav->f, 32, SEEK_CUR);
+    qemu_put_buffer (wav->f, dlen, 4);
+
+    qemu_fclose (wav->f);
     wav->f = NULL;
 
-    g_free (wav->pcm_buf);
+    qemu_free (wav->pcm_buf);
     wav->pcm_buf = NULL;
 }
 
@@ -222,49 +200,40 @@ static int wav_ctl_out (HWVoiceOut *hw, int cmd, ...)
     return 0;
 }
 
-static WAVConf glob_conf = {
-    .settings.freq      = 44100,
-    .settings.nchannels = 2,
-    .settings.fmt       = AUD_FMT_S16,
-    .wav_path           = "qemu.wav"
-};
-
 static void *wav_audio_init (void)
 {
-    WAVConf *conf = g_malloc(sizeof(WAVConf));
-    *conf = glob_conf;
-    return conf;
+    return &conf;
 }
 
 static void wav_audio_fini (void *opaque)
 {
+    (void) opaque;
     ldebug ("wav_fini");
-    g_free(opaque);
 }
 
 static struct audio_option wav_options[] = {
     {
         .name  = "FREQUENCY",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.settings.freq,
+        .valp  = &conf.settings.freq,
         .descr = "Frequency"
     },
     {
         .name  = "FORMAT",
         .tag   = AUD_OPT_FMT,
-        .valp  = &glob_conf.settings.fmt,
+        .valp  = &conf.settings.fmt,
         .descr = "Format"
     },
     {
         .name  = "DAC_FIXED_CHANNELS",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.settings.nchannels,
+        .valp  = &conf.settings.nchannels,
         .descr = "Number of channels (1 - mono, 2 - stereo)"
     },
     {
         .name  = "PATH",
         .tag   = AUD_OPT_STR,
-        .valp  = &glob_conf.wav_path,
+        .valp  = &conf.wav_path,
         .descr = "Path to wave file"
     },
     { /* End of list */ }

audio/wavcapture.c

@@ -1,11 +1,9 @@
-#include "qemu/osdep.h"
 #include "hw/hw.h"
-#include "monitor/monitor.h"
-#include "qemu/error-report.h"
+#include "monitor.h"
 #include "audio.h"
 
 typedef struct {
-    FILE *f;
+    QEMUFile *f;
     int bytes;
     char *path;
     int freq;
@@ -37,49 +35,27 @@ static void wav_destroy (void *opaque)
     uint8_t dlen[4];
     uint32_t datalen = wav->bytes;
     uint32_t rifflen = datalen + 36;
-    Monitor *mon = cur_mon;
 
     if (wav->f) {
         le_store (rlen, rifflen, 4);
         le_store (dlen, datalen, 4);
 
-        if (fseek (wav->f, 4, SEEK_SET)) {
-            monitor_printf (mon, "wav_destroy: rlen fseek failed\nReason: %s\n",
-                            strerror (errno));
-            goto doclose;
-        }
-        if (fwrite (rlen, 4, 1, wav->f) != 1) {
-            monitor_printf (mon, "wav_destroy: rlen fwrite failed\nReason %s\n",
-                            strerror (errno));
-            goto doclose;
-        }
-        if (fseek (wav->f, 32, SEEK_CUR)) {
-            monitor_printf (mon, "wav_destroy: dlen fseek failed\nReason %s\n",
-                            strerror (errno));
-            goto doclose;
-        }
-        if (fwrite (dlen, 1, 4, wav->f) != 4) {
-            monitor_printf (mon, "wav_destroy: dlen fwrite failed\nReason %s\n",
-                            strerror (errno));
-            goto doclose;
-        }
-    doclose:
-        if (fclose (wav->f)) {
-            error_report("wav_destroy: fclose failed: %s", strerror(errno));
-        }
+        qemu_fseek (wav->f, 4, SEEK_SET);
+        qemu_put_buffer (wav->f, rlen, 4);
+
+        qemu_fseek (wav->f, 32, SEEK_CUR);
+        qemu_put_buffer (wav->f, dlen, 4);
+        qemu_fclose (wav->f);
     }
 
-    g_free (wav->path);
+    qemu_free (wav->path);
 }
 
 static void wav_capture (void *opaque, void *buf, int size)
 {
     WAVState *wav = opaque;
 
-    if (fwrite (buf, size, 1, wav->f) != 1) {
-        monitor_printf (cur_mon, "wav_capture: fwrite error\nReason: %s",
-                        strerror (errno));
-    }
+    qemu_put_buffer (wav->f, buf, size);
     wav->bytes += size;
 }
 
@@ -88,7 +64,6 @@ static void wav_capture_destroy (void *opaque)
     WAVState *wav = opaque;
 
     AUD_del_capture (wav->cap, wav);
-    g_free (wav);
 }
 
 static void wav_capture_info (void *opaque)
@@ -96,9 +71,9 @@ static void wav_capture_info (void *opaque)
     WAVState *wav = opaque;
     char *path = wav->path;
 
-    monitor_printf (cur_mon, "Capturing audio(%d,%d,%d) to %s: %d bytes\n",
-                    wav->freq, wav->bits, wav->nchannels,
-                    path ? path : "<not available>", wav->bytes);
+    monitor_printf(cur_mon, "Capturing audio(%d,%d,%d) to %s: %d bytes\n",
+                   wav->freq, wav->bits, wav->nchannels,
+                   path ? path : "<not available>", wav->bytes);
 }
 
 static struct capture_ops wav_capture_ops = {
@@ -123,13 +98,13 @@ int wav_start_capture (CaptureState *s, const char *path, int freq,
     CaptureVoiceOut *cap;
 
     if (bits != 8 && bits != 16) {
-        monitor_printf (mon, "incorrect bit count %d, must be 8 or 16\n", bits);
+        monitor_printf(mon, "incorrect bit count %d, must be 8 or 16\n", bits);
         return -1;
     }
 
     if (nchannels != 1 && nchannels != 2) {
-        monitor_printf (mon, "incorrect channel count %d, must be 1 or 2\n",
-                        nchannels);
+        monitor_printf(mon, "incorrect channel count %d, must be 1 or 2\n",
+                       nchannels);
         return -1;
     }
 
@@ -145,7 +120,7 @@ int wav_start_capture (CaptureState *s, const char *path, int freq,
     ops.capture = wav_capture;
     ops.destroy = wav_destroy;
 
-    wav = g_malloc0 (sizeof (*wav));
+    wav = qemu_mallocz (sizeof (*wav));
 
     shift = bits16 + stereo;
     hdr[34] = bits16 ? 0x10 : 0x08;
@@ -155,42 +130,32 @@ int wav_start_capture (CaptureState *s, const char *path, int freq,
     le_store (hdr + 28, freq << shift, 4);
     le_store (hdr + 32, 1 << shift, 2);
 
-    wav->f = fopen (path, "wb");
+    wav->f = qemu_fopen (path, "wb");
     if (!wav->f) {
-        monitor_printf (mon, "Failed to open wave file `%s'\nReason: %s\n",
-                        path, strerror (errno));
-        g_free (wav);
+        monitor_printf(mon, "Failed to open wave file `%s'\nReason: %s\n",
+                       path, strerror (errno));
+        qemu_free (wav);
         return -1;
     }
 
-    wav->path = g_strdup (path);
+    wav->path = qemu_strdup (path);
     wav->bits = bits;
     wav->nchannels = nchannels;
     wav->freq = freq;
 
-    if (fwrite (hdr, sizeof (hdr), 1, wav->f) != 1) {
-        monitor_printf (mon, "Failed to write header\nReason: %s\n",
-                        strerror (errno));
-        goto error_free;
-    }
+    qemu_put_buffer (wav->f, hdr, sizeof (hdr));
 
     cap = AUD_add_capture (&as, &ops, wav);
     if (!cap) {
-        monitor_printf (mon, "Failed to add audio capture\n");
-        goto error_free;
+        monitor_printf(mon, "Failed to add audio capture\n");
+        qemu_free (wav->path);
+        qemu_fclose (wav->f);
+        qemu_free (wav);
+        return -1;
     }
 
     wav->cap = cap;
     s->opaque = wav;
     s->ops = wav_capture_ops;
     return 0;
-
-error_free:
-    g_free (wav->path);
-    if (fclose (wav->f)) {
-        monitor_printf (mon, "Failed to close wave file\nReason: %s\n",
-                        strerror (errno));
-    }
-    g_free (wav);
-    return -1;
 }

audio/winwaveaudio.c

@@ -0,0 +1,724 @@
+/* public domain */
+
+#include "qemu-common.h"
+#include "sysemu.h"
+#include "audio.h"
+
+#define AUDIO_CAP "winwave"
+#include "audio_int.h"
+
+#include <windows.h>
+#include <mmsystem.h>
+
+#include "audio_win_int.h"
+
+static struct {
+    int dac_headers;
+    int dac_samples;
+    int adc_headers;
+    int adc_samples;
+} conf = {
+    .dac_headers = 4,
+    .dac_samples = 1024,
+    .adc_headers = 4,
+    .adc_samples = 1024
+};
+
+typedef struct {
+    HWVoiceOut hw;
+    HWAVEOUT hwo;
+    WAVEHDR *hdrs;
+    HANDLE event;
+    void *pcm_buf;
+    int avail;
+    int pending;
+    int curhdr;
+    int paused;
+    CRITICAL_SECTION crit_sect;
+} WaveVoiceOut;
+
+typedef struct {
+    HWVoiceIn hw;
+    HWAVEIN hwi;
+    WAVEHDR *hdrs;
+    HANDLE event;
+    void *pcm_buf;
+    int curhdr;
+    int paused;
+    int rpos;
+    int avail;
+    CRITICAL_SECTION crit_sect;
+} WaveVoiceIn;
+
+static void winwave_log_mmresult (MMRESULT mr)
+{
+    const char *str = "BUG";
+
+    switch (mr) {
+    case MMSYSERR_NOERROR:
+        str = "Success";
+        break;
+
+    case MMSYSERR_INVALHANDLE:
+        str = "Specified device handle is invalid";
+        break;
+
+    case MMSYSERR_BADDEVICEID:
+        str = "Specified device id is out of range";
+        break;
+
+    case MMSYSERR_NODRIVER:
+        str = "No device driver is present";
+        break;
+
+    case MMSYSERR_NOMEM:
+        str = "Unable to allocate or locl memory";
+        break;
+
+    case WAVERR_SYNC:
+        str = "Device is synchronous but waveOutOpen was called "
+            "without using the WINWAVE_ALLOWSYNC flag";
+        break;
+
+    case WAVERR_UNPREPARED:
+        str = "The data block pointed to by the pwh parameter "
+            "hasn't been prepared";
+        break;
+
+    case WAVERR_STILLPLAYING:
+        str = "There are still buffers in the queue";
+        break;
+
+    default:
+        dolog ("Reason: Unknown (MMRESULT %#x)\n", mr);
+        return;
+    }
+
+    dolog ("Reason: %s\n", str);
+}
+
+static void GCC_FMT_ATTR (2, 3) winwave_logerr (
+    MMRESULT mr,
+    const char *fmt,
+    ...
+    )
+{
+    va_list ap;
+
+    va_start (ap, fmt);
+    AUD_vlog (AUDIO_CAP, fmt, ap);
+    va_end (ap);
+
+    AUD_log (NULL, " failed\n");
+    winwave_log_mmresult (mr);
+}
+
+static void winwave_anal_close_out (WaveVoiceOut *wave)
+{
+    MMRESULT mr;
+
+    mr = waveOutClose (wave->hwo);
+    if (mr != MMSYSERR_NOERROR) {
+        winwave_logerr (mr, "waveOutClose");
+    }
+    wave->hwo = NULL;
+}
+
+static void CALLBACK winwave_callback_out (
+    HWAVEOUT hwo,
+    UINT msg,
+    DWORD_PTR dwInstance,
+    DWORD_PTR dwParam1,
+    DWORD_PTR dwParam2
+    )
+{
+    WaveVoiceOut *wave = (WaveVoiceOut *) dwInstance;
+
+    switch (msg) {
+    case WOM_DONE:
+        {
+            WAVEHDR *h = (WAVEHDR *) dwParam1;
+            if (!h->dwUser) {
+                h->dwUser = 1;
+                EnterCriticalSection (&wave->crit_sect);
+                {
+                    wave->avail += conf.dac_samples;
+                }
+                LeaveCriticalSection (&wave->crit_sect);
+                if (wave->hw.poll_mode) {
+                    if (!SetEvent (wave->event)) {
+                        dolog ("DAC SetEvent failed %lx\n", GetLastError ());
+                    }
+                }
+            }
+        }
+        break;
+
+    case WOM_CLOSE:
+    case WOM_OPEN:
+        break;
+
+    default:
+        dolog ("unknown wave out callback msg %x\n", msg);
+    }
+}
+
+static int winwave_init_out (HWVoiceOut *hw, struct audsettings *as)
+{
+    int i;
+    int err;
+    MMRESULT mr;
+    WAVEFORMATEX wfx;
+    WaveVoiceOut *wave;
+
+    wave = (WaveVoiceOut *) hw;
+
+    InitializeCriticalSection (&wave->crit_sect);
+
+    err = waveformat_from_audio_settings (&wfx, as);
+    if (err) {
+        goto err0;
+    }
+
+    mr = waveOutOpen (&wave->hwo, WAVE_MAPPER, &wfx,
+                      (DWORD_PTR) winwave_callback_out,
+                      (DWORD_PTR) wave, CALLBACK_FUNCTION);
+    if (mr != MMSYSERR_NOERROR) {
+        winwave_logerr (mr, "waveOutOpen");
+        goto err1;
+    }
+
+    wave->hdrs = audio_calloc (AUDIO_FUNC, conf.dac_headers,
+                               sizeof (*wave->hdrs));
+    if (!wave->hdrs) {
+        goto err2;
+    }
+
+    audio_pcm_init_info (&hw->info, as);
+    hw->samples = conf.dac_samples * conf.dac_headers;
+    wave->avail = hw->samples;
+
+    wave->pcm_buf = audio_calloc (AUDIO_FUNC, conf.dac_samples,
+                                  conf.dac_headers << hw->info.shift);
+    if (!wave->pcm_buf) {
+        goto err3;
+    }
+
+    for (i = 0; i < conf.dac_headers; ++i) {
+        WAVEHDR *h = &wave->hdrs[i];
+
+        h->dwUser = 0;
+        h->dwBufferLength = conf.dac_samples << hw->info.shift;
+        h->lpData = advance (wave->pcm_buf, i * h->dwBufferLength);
+        h->dwFlags = 0;
+
+        mr = waveOutPrepareHeader (wave->hwo, h, sizeof (*h));
+        if (mr != MMSYSERR_NOERROR) {
+            winwave_logerr (mr, "waveOutPrepareHeader(%d)", i);
+            goto err4;
+        }
+    }
+
+    return 0;
+
+ err4:
+    qemu_free (wave->pcm_buf);
+ err3:
+    qemu_free (wave->hdrs);
+ err2:
+    winwave_anal_close_out (wave);
+ err1:
+ err0:
+    return -1;
+}
+
+static int winwave_write (SWVoiceOut *sw, void *buf, int len)
+{
+    return audio_pcm_sw_write (sw, buf, len);
+}
+
+static int winwave_run_out (HWVoiceOut *hw, int live)
+{
+    WaveVoiceOut *wave = (WaveVoiceOut *) hw;
+    int decr;
+    int doreset;
+
+    EnterCriticalSection (&wave->crit_sect);
+    {
+        decr = audio_MIN (live, wave->avail);
+        decr = audio_pcm_hw_clip_out (hw, wave->pcm_buf, decr, wave->pending);
+        wave->pending += decr;
+        wave->avail -= decr;
+    }
+    LeaveCriticalSection (&wave->crit_sect);
+
+    doreset = hw->poll_mode && (wave->pending >= conf.dac_samples);
+    if (doreset && !ResetEvent (wave->event)) {
+        dolog ("DAC ResetEvent failed %lx\n", GetLastError ());
+    }
+
+    while (wave->pending >= conf.dac_samples) {
+        MMRESULT mr;
+        WAVEHDR *h = &wave->hdrs[wave->curhdr];
+
+        h->dwUser = 0;
+        mr = waveOutWrite (wave->hwo, h, sizeof (*h));
+        if (mr != MMSYSERR_NOERROR) {
+            winwave_logerr (mr, "waveOutWrite(%d)", wave->curhdr);
+            break;
+        }
+
+        wave->pending -= conf.dac_samples;
+        wave->curhdr = (wave->curhdr + 1) % conf.dac_headers;
+    }
+
+    return decr;
+}
+
+static void winwave_poll (void *opaque)
+{
+    (void) opaque;
+    audio_run ("winwave_poll");
+}
+
+static void winwave_fini_out (HWVoiceOut *hw)
+{
+    int i;
+    MMRESULT mr;
+    WaveVoiceOut *wave = (WaveVoiceOut *) hw;
+
+    mr = waveOutReset (wave->hwo);
+    if (mr != MMSYSERR_NOERROR) {
+        winwave_logerr (mr, "waveOutReset");
+    }
+
+    for (i = 0; i < conf.dac_headers; ++i) {
+        mr = waveOutUnprepareHeader (wave->hwo, &wave->hdrs[i],
+                                     sizeof (wave->hdrs[i]));
+        if (mr != MMSYSERR_NOERROR) {
+            winwave_logerr (mr, "waveOutUnprepareHeader(%d)", i);
+        }
+    }
+
+    winwave_anal_close_out (wave);
+
+    if (wave->event) {
+        qemu_del_wait_object (wave->event, winwave_poll, wave);
+        if (!CloseHandle (wave->event)) {
+            dolog ("DAC CloseHandle failed %lx\n", GetLastError ());
+        }
+        wave->event = NULL;
+    }
+
+    qemu_free (wave->pcm_buf);
+    wave->pcm_buf = NULL;
+
+    qemu_free (wave->hdrs);
+    wave->hdrs = NULL;
+}
+
+static int winwave_ctl_out (HWVoiceOut *hw, int cmd, ...)
+{
+    MMRESULT mr;
+    WaveVoiceOut *wave = (WaveVoiceOut *) hw;
+
+    switch (cmd) {
+    case VOICE_ENABLE:
+        {
+            va_list ap;
+            int poll_mode;
+
+            va_start (ap, cmd);
+            poll_mode = va_arg (ap, int);
+            va_end (ap);
+
+            if (poll_mode && !wave->event) {
+                wave->event = CreateEvent (NULL, TRUE, TRUE, NULL);
+                if (!wave->event) {
+                    dolog ("DAC CreateEvent: %lx, poll mode will be disabled\n",
+                           GetLastError ());
+                }
+            }
+
+            if (wave->event) {
+                int ret;
+
+                ret = qemu_add_wait_object (wave->event, winwave_poll, wave);
+                hw->poll_mode = (ret == 0);
+            }
+            else {
+                hw->poll_mode = 0;
+            }
+            if (wave->paused) {
+                mr = waveOutRestart (wave->hwo);
+                if (mr != MMSYSERR_NOERROR) {
+                    winwave_logerr (mr, "waveOutRestart");
+                }
+                wave->paused = 0;
+            }
+        }
+        return 0;
+
+    case VOICE_DISABLE:
+        if (!wave->paused) {
+            mr = waveOutPause (wave->hwo);
+            if (mr != MMSYSERR_NOERROR) {
+                winwave_logerr (mr, "waveOutPause");
+            }
+            else {
+                wave->paused = 1;
+            }
+        }
+        if (wave->event) {
+            qemu_del_wait_object (wave->event, winwave_poll, wave);
+        }
+        return 0;
+    }
+    return -1;
+}
+
+static void winwave_anal_close_in (WaveVoiceIn *wave)
+{
+    MMRESULT mr;
+
+    mr = waveInClose (wave->hwi);
+    if (mr != MMSYSERR_NOERROR) {
+        winwave_logerr (mr, "waveInClose");
+    }
+    wave->hwi = NULL;
+}
+
+static void CALLBACK winwave_callback_in (
+    HWAVEIN *hwi,
+    UINT msg,
+    DWORD_PTR dwInstance,
+    DWORD_PTR dwParam1,
+    DWORD_PTR dwParam2
+    )
+{
+    WaveVoiceIn *wave = (WaveVoiceIn *) dwInstance;
+
+    switch (msg) {
+    case WIM_DATA:
+        {
+            WAVEHDR *h = (WAVEHDR *) dwParam1;
+            if (!h->dwUser) {
+                h->dwUser = 1;
+                EnterCriticalSection (&wave->crit_sect);
+                {
+                    wave->avail += conf.adc_samples;
+                }
+                LeaveCriticalSection (&wave->crit_sect);
+                if (wave->hw.poll_mode) {
+                    if (!SetEvent (wave->event)) {
+                        dolog ("ADC SetEvent failed %lx\n", GetLastError ());
+                    }
+                }
+            }
+        }
+        break;
+
+    case WIM_CLOSE:
+    case WIM_OPEN:
+        break;
+
+    default:
+        dolog ("unknown wave in callback msg %x\n", msg);
+    }
+}
+
+static void winwave_add_buffers (WaveVoiceIn *wave, int samples)
+{
+    int doreset;
+
+    doreset = wave->hw.poll_mode && (samples >= conf.adc_samples);
+    if (doreset && !ResetEvent (wave->event)) {
+        dolog ("ADC ResetEvent failed %lx\n", GetLastError ());
+    }
+
+    while (samples >= conf.adc_samples) {
+        MMRESULT mr;
+        WAVEHDR *h = &wave->hdrs[wave->curhdr];
+
+        h->dwUser = 0;
+        mr = waveInAddBuffer (wave->hwi, h, sizeof (*h));
+        if (mr != MMSYSERR_NOERROR) {
+            winwave_logerr (mr, "waveInAddBuffer(%d)", wave->curhdr);
+        }
+        wave->curhdr = (wave->curhdr + 1) % conf.adc_headers;
+        samples -= conf.adc_samples;
+    }
+}
+
+static int winwave_init_in (HWVoiceIn *hw, struct audsettings *as)
+{
+    int i;
+    int err;
+    MMRESULT mr;
+    WAVEFORMATEX wfx;
+    WaveVoiceIn *wave;
+
+    wave = (WaveVoiceIn *) hw;
+
+    InitializeCriticalSection (&wave->crit_sect);
+
+    err = waveformat_from_audio_settings (&wfx, as);
+    if (err) {
+        goto err0;
+    }
+
+    mr = waveInOpen (&wave->hwi, WAVE_MAPPER, &wfx,
+                     (DWORD_PTR) winwave_callback_in,
+                     (DWORD_PTR) wave, CALLBACK_FUNCTION);
+    if (mr != MMSYSERR_NOERROR) {
+        winwave_logerr (mr, "waveInOpen");
+        goto err1;
+    }
+
+    wave->hdrs = audio_calloc (AUDIO_FUNC, conf.dac_headers,
+                               sizeof (*wave->hdrs));
+    if (!wave->hdrs) {
+        goto err2;
+    }
+
+    audio_pcm_init_info (&hw->info, as);
+    hw->samples = conf.adc_samples * conf.adc_headers;
+    wave->avail = 0;
+
+    wave->pcm_buf = audio_calloc (AUDIO_FUNC, conf.adc_samples,
+                                  conf.adc_headers << hw->info.shift);
+    if (!wave->pcm_buf) {
+        goto err3;
+    }
+
+    for (i = 0; i < conf.adc_headers; ++i) {
+        WAVEHDR *h = &wave->hdrs[i];
+
+        h->dwUser = 0;
+        h->dwBufferLength = conf.adc_samples << hw->info.shift;
+        h->lpData = advance (wave->pcm_buf, i * h->dwBufferLength);
+        h->dwFlags = 0;
+
+        mr = waveInPrepareHeader (wave->hwi, h, sizeof (*h));
+        if (mr != MMSYSERR_NOERROR) {
+            winwave_logerr (mr, "waveInPrepareHeader(%d)", i);
+            goto err4;
+        }
+    }
+
+    wave->paused = 1;
+    winwave_add_buffers (wave, hw->samples);
+    return 0;
+
+ err4:
+    qemu_free (wave->pcm_buf);
+ err3:
+    qemu_free (wave->hdrs);
+ err2:
+    winwave_anal_close_in (wave);
+ err1:
+ err0:
+    return -1;
+}
+
+static void winwave_fini_in (HWVoiceIn *hw)
+{
+    int i;
+    MMRESULT mr;
+    WaveVoiceIn *wave = (WaveVoiceIn *) hw;
+
+    mr = waveInReset (wave->hwi);
+    if (mr != MMSYSERR_NOERROR) {
+        winwave_logerr (mr, "waveInReset");
+    }
+
+    for (i = 0; i < conf.adc_headers; ++i) {
+        mr = waveInUnprepareHeader (wave->hwi, &wave->hdrs[i],
+                                     sizeof (wave->hdrs[i]));
+        if (mr != MMSYSERR_NOERROR) {
+            winwave_logerr (mr, "waveInUnprepareHeader(%d)", i);
+        }
+    }
+
+    winwave_anal_close_in (wave);
+
+    if (wave->event) {
+        qemu_del_wait_object (wave->event, winwave_poll, wave);
+        if (!CloseHandle (wave->event)) {
+            dolog ("ADC CloseHandle failed %lx\n", GetLastError ());
+        }
+        wave->event = NULL;
+    }
+
+    qemu_free (wave->pcm_buf);
+    wave->pcm_buf = NULL;
+
+    qemu_free (wave->hdrs);
+    wave->hdrs = NULL;
+}
+
+static int winwave_run_in (HWVoiceIn *hw)
+{
+    WaveVoiceIn *wave = (WaveVoiceIn *) hw;
+    int live = audio_pcm_hw_get_live_in (hw);
+    int dead = hw->samples - live;
+    int decr, ret;
+
+    if (!dead) {
+        return 0;
+    }
+
+    EnterCriticalSection (&wave->crit_sect);
+    {
+        decr = audio_MIN (dead, wave->avail);
+        wave->avail -= decr;
+    }
+    LeaveCriticalSection (&wave->crit_sect);
+
+    ret = decr;
+    while (decr) {
+        int left = hw->samples - hw->wpos;
+        int conv = audio_MIN (left, decr);
+        hw->conv (hw->conv_buf + hw->wpos,
+                  advance (wave->pcm_buf, wave->rpos << hw->info.shift),
+                  conv,
+                  &nominal_volume);
+
+        wave->rpos = (wave->rpos + conv) % hw->samples;
+        hw->wpos = (hw->wpos + conv) % hw->samples;
+        decr -= conv;
+    }
+
+    winwave_add_buffers (wave, ret);
+    return ret;
+}
+
+static int winwave_read (SWVoiceIn *sw, void *buf, int size)
+{
+    return audio_pcm_sw_read (sw, buf, size);
+}
+
+static int winwave_ctl_in (HWVoiceIn *hw, int cmd, ...)
+{
+    MMRESULT mr;
+    WaveVoiceIn *wave = (WaveVoiceIn *) hw;
+
+    switch (cmd) {
+    case VOICE_ENABLE:
+        {
+            va_list ap;
+            int poll_mode;
+
+            va_start (ap, cmd);
+            poll_mode = va_arg (ap, int);
+            va_end (ap);
+
+            if (poll_mode && !wave->event) {
+                wave->event = CreateEvent (NULL, TRUE, TRUE, NULL);
+                if (!wave->event) {
+                    dolog ("ADC CreateEvent: %lx, poll mode will be disabled\n",
+                           GetLastError ());
+                }
+            }
+
+            if (wave->event) {
+                int ret;
+
+                ret = qemu_add_wait_object (wave->event, winwave_poll, wave);
+                hw->poll_mode = (ret == 0);
+            }
+            else {
+                hw->poll_mode = 0;
+            }
+            if (wave->paused) {
+                mr = waveInStart (wave->hwi);
+                if (mr != MMSYSERR_NOERROR) {
+                    winwave_logerr (mr, "waveInStart");
+                }
+                wave->paused = 0;
+            }
+        }
+        return 0;
+
+    case VOICE_DISABLE:
+        if (!wave->paused) {
+            mr = waveInStop (wave->hwi);
+            if (mr != MMSYSERR_NOERROR) {
+                winwave_logerr (mr, "waveInStop");
+            }
+            else {
+                wave->paused = 1;
+            }
+        }
+        if (wave->event) {
+            qemu_del_wait_object (wave->event, winwave_poll, wave);
+        }
+        return 0;
+    }
+    return 0;
+}
+
+static void *winwave_audio_init (void)
+{
+    return &conf;
+}
+
+static void winwave_audio_fini (void *opaque)
+{
+    (void) opaque;
+}
+
+static struct audio_option winwave_options[] = {
+    {
+        .name        = "DAC_HEADERS",
+        .tag         = AUD_OPT_INT,
+        .valp        = &conf.dac_headers,
+        .descr       = "DAC number of headers",
+    },
+    {
+        .name        = "DAC_SAMPLES",
+        .tag         = AUD_OPT_INT,
+        .valp        = &conf.dac_samples,
+        .descr       = "DAC number of samples per header",
+    },
+    {
+        .name        = "ADC_HEADERS",
+        .tag         = AUD_OPT_INT,
+        .valp        = &conf.adc_headers,
+        .descr       = "ADC number of headers",
+    },
+    {
+        .name        = "ADC_SAMPLES",
+        .tag         = AUD_OPT_INT,
+        .valp        = &conf.adc_samples,
+        .descr       = "ADC number of samples per header",
+    },
+    { /* End of list */ }
+};
+
+static struct audio_pcm_ops winwave_pcm_ops = {
+    .init_out = winwave_init_out,
+    .fini_out = winwave_fini_out,
+    .run_out  = winwave_run_out,
+    .write    = winwave_write,
+    .ctl_out  = winwave_ctl_out,
+    .init_in  = winwave_init_in,
+    .fini_in  = winwave_fini_in,
+    .run_in   = winwave_run_in,
+    .read     = winwave_read,
+    .ctl_in   = winwave_ctl_in
+};
+
+struct audio_driver winwave_audio_driver = {
+    .name           = "winwave",
+    .descr          = "Windows Waveform Audio http://msdn.microsoft.com",
+    .options        = winwave_options,
+    .init           = winwave_audio_init,
+    .fini           = winwave_audio_fini,
+    .pcm_ops        = &winwave_pcm_ops,
+    .can_be_default = 1,
+    .max_voices_out = INT_MAX,
+    .max_voices_in  = INT_MAX,
+    .voice_size_out = sizeof (WaveVoiceOut),
+    .voice_size_in  = sizeof (WaveVoiceIn)
+};

backends/Makefile.objs

@@ -1,10 +0,0 @@
-common-obj-y += rng.o rng-egd.o
-common-obj-$(CONFIG_POSIX) += rng-random.o
-
-common-obj-$(CONFIG_TPM) += tpm.o
-
-common-obj-y += hostmem.o hostmem-ram.o
-common-obj-$(CONFIG_LINUX) += hostmem-file.o
-
-common-obj-y += cryptodev.o
-common-obj-y += cryptodev-builtin.o

backends/cryptodev-builtin.c

@@ -1,400 +0,0 @@
-/*
- * QEMU Cryptodev backend for QEMU cipher APIs
- *
- * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
- *
- * Authors:
- *    Gonglei <arei.gonglei@huawei.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include "qemu/osdep.h"
-#include "sysemu/cryptodev.h"
-#include "hw/boards.h"
-#include "qapi/error.h"
-#include "standard-headers/linux/virtio_crypto.h"
-#include "crypto/cipher.h"
-
-
-/**
- * @TYPE_CRYPTODEV_BACKEND_BUILTIN:
- * name of backend that uses QEMU cipher API
- */
-#define TYPE_CRYPTODEV_BACKEND_BUILTIN "cryptodev-backend-builtin"
-
-#define CRYPTODEV_BACKEND_BUILTIN(obj) \
-    OBJECT_CHECK(CryptoDevBackendBuiltin, \
-                 (obj), TYPE_CRYPTODEV_BACKEND_BUILTIN)
-
-typedef struct CryptoDevBackendBuiltin
-                         CryptoDevBackendBuiltin;
-
-typedef struct CryptoDevBackendBuiltinSession {
-    QCryptoCipher *cipher;
-    uint8_t direction; /* encryption or decryption */
-    uint8_t type; /* cipher? hash? aead? */
-    QTAILQ_ENTRY(CryptoDevBackendBuiltinSession) next;
-} CryptoDevBackendBuiltinSession;
-
-/* Max number of symmetric sessions */
-#define MAX_NUM_SESSIONS 256
-
-#define CRYPTODEV_BUITLIN_MAX_AUTH_KEY_LEN    512
-#define CRYPTODEV_BUITLIN_MAX_CIPHER_KEY_LEN  64
-
-struct CryptoDevBackendBuiltin {
-    CryptoDevBackend parent_obj;
-
-    CryptoDevBackendBuiltinSession *sessions[MAX_NUM_SESSIONS];
-};
-
-static void cryptodev_builtin_init(
-             CryptoDevBackend *backend, Error **errp)
-{
-    /* Only support one queue */
-    int queues = backend->conf.peers.queues;
-    CryptoDevBackendClient *cc;
-
-    if (queues != 1) {
-        error_setg(errp,
-                  "Only support one queue in cryptdov-builtin backend");
-        return;
-    }
-
-    cc = cryptodev_backend_new_client(
-              "cryptodev-builtin", NULL);
-    cc->info_str = g_strdup_printf("cryptodev-builtin0");
-    cc->queue_index = 0;
-    backend->conf.peers.ccs[0] = cc;
-
-    backend->conf.crypto_services =
-                         1u << VIRTIO_CRYPTO_SERVICE_CIPHER |
-                         1u << VIRTIO_CRYPTO_SERVICE_HASH |
-                         1u << VIRTIO_CRYPTO_SERVICE_MAC;
-    backend->conf.cipher_algo_l = 1u << VIRTIO_CRYPTO_CIPHER_AES_CBC;
-    backend->conf.hash_algo = 1u << VIRTIO_CRYPTO_HASH_SHA1;
-    /*
-     * Set the Maximum length of crypto request.
-     * Why this value? Just avoid to overflow when
-     * memory allocation for each crypto request.
-     */
-    backend->conf.max_size = LONG_MAX - sizeof(CryptoDevBackendSymOpInfo);
-    backend->conf.max_cipher_key_len = CRYPTODEV_BUITLIN_MAX_CIPHER_KEY_LEN;
-    backend->conf.max_auth_key_len = CRYPTODEV_BUITLIN_MAX_AUTH_KEY_LEN;
-
-    cryptodev_backend_set_ready(backend, true);
-}
-
-static int
-cryptodev_builtin_get_unused_session_index(
-                 CryptoDevBackendBuiltin *builtin)
-{
-    size_t i;
-
-    for (i = 0; i < MAX_NUM_SESSIONS; i++) {
-        if (builtin->sessions[i] == NULL) {
-            return i;
-        }
-    }
-
-    return -1;
-}
-
-#define AES_KEYSIZE_128 16
-#define AES_KEYSIZE_192 24
-#define AES_KEYSIZE_256 32
-#define AES_KEYSIZE_128_XTS AES_KEYSIZE_256
-#define AES_KEYSIZE_256_XTS 64
-
-static int
-cryptodev_builtin_get_aes_algo(uint32_t key_len, int mode, Error **errp)
-{
-    int algo;
-
-    if (key_len == AES_KEYSIZE_128) {
-        algo = QCRYPTO_CIPHER_ALG_AES_128;
-    } else if (key_len == AES_KEYSIZE_192) {
-        algo = QCRYPTO_CIPHER_ALG_AES_192;
-    } else if (key_len == AES_KEYSIZE_256) { /* equals AES_KEYSIZE_128_XTS */
-        if (mode == QCRYPTO_CIPHER_MODE_XTS) {
-            algo = QCRYPTO_CIPHER_ALG_AES_128;
-        } else {
-            algo = QCRYPTO_CIPHER_ALG_AES_256;
-        }
-    } else if (key_len == AES_KEYSIZE_256_XTS) {
-        if (mode == QCRYPTO_CIPHER_MODE_XTS) {
-            algo = QCRYPTO_CIPHER_ALG_AES_256;
-        } else {
-            goto err;
-        }
-    } else {
-        goto err;
-    }
-
-    return algo;
-
-err:
-   error_setg(errp, "Unsupported key length :%u", key_len);
-   return -1;
-}
-
-static int cryptodev_builtin_create_cipher_session(
-                    CryptoDevBackendBuiltin *builtin,
-                    CryptoDevBackendSymSessionInfo *sess_info,
-                    Error **errp)
-{
-    int algo;
-    int mode;
-    QCryptoCipher *cipher;
-    int index;
-    CryptoDevBackendBuiltinSession *sess;
-
-    if (sess_info->op_type != VIRTIO_CRYPTO_SYM_OP_CIPHER) {
-        error_setg(errp, "Unsupported optype :%u", sess_info->op_type);
-        return -1;
-    }
-
-    index = cryptodev_builtin_get_unused_session_index(builtin);
-    if (index < 0) {
-        error_setg(errp, "Total number of sessions created exceeds %u",
-                  MAX_NUM_SESSIONS);
-        return -1;
-    }
-
-    switch (sess_info->cipher_alg) {
-    case VIRTIO_CRYPTO_CIPHER_AES_ECB:
-        mode = QCRYPTO_CIPHER_MODE_ECB;
-        algo = cryptodev_builtin_get_aes_algo(sess_info->key_len,
-                                                    mode, errp);
-        if (algo < 0)  {
-            return -1;
-        }
-        break;
-    case VIRTIO_CRYPTO_CIPHER_AES_CBC:
-        mode = QCRYPTO_CIPHER_MODE_CBC;
-        algo = cryptodev_builtin_get_aes_algo(sess_info->key_len,
-                                                    mode, errp);
-        if (algo < 0)  {
-            return -1;
-        }
-        break;
-    case VIRTIO_CRYPTO_CIPHER_AES_CTR:
-        mode = QCRYPTO_CIPHER_MODE_CTR;
-        algo = cryptodev_builtin_get_aes_algo(sess_info->key_len,
-                                                    mode, errp);
-        if (algo < 0)  {
-            return -1;
-        }
-        break;
-    case VIRTIO_CRYPTO_CIPHER_AES_XTS:
-        mode = QCRYPTO_CIPHER_MODE_XTS;
-        algo = cryptodev_builtin_get_aes_algo(sess_info->key_len,
-                                                    mode, errp);
-        if (algo < 0)  {
-            return -1;
-        }
-        break;
-    case VIRTIO_CRYPTO_CIPHER_3DES_ECB:
-        mode = QCRYPTO_CIPHER_MODE_ECB;
-        algo = QCRYPTO_CIPHER_ALG_3DES;
-        break;
-    case VIRTIO_CRYPTO_CIPHER_3DES_CBC:
-        mode = QCRYPTO_CIPHER_MODE_CBC;
-        algo = QCRYPTO_CIPHER_ALG_3DES;
-        break;
-    case VIRTIO_CRYPTO_CIPHER_3DES_CTR:
-        mode = QCRYPTO_CIPHER_MODE_CTR;
-        algo = QCRYPTO_CIPHER_ALG_3DES;
-        break;
-    default:
-        error_setg(errp, "Unsupported cipher alg :%u",
-                   sess_info->cipher_alg);
-        return -1;
-    }
-
-    cipher = qcrypto_cipher_new(algo, mode,
-                               sess_info->cipher_key,
-                               sess_info->key_len,
-                               errp);
-    if (!cipher) {
-        return -1;
-    }
-
-    sess = g_new0(CryptoDevBackendBuiltinSession, 1);
-    sess->cipher = cipher;
-    sess->direction = sess_info->direction;
-    sess->type = sess_info->op_type;
-
-    builtin->sessions[index] = sess;
-
-    return index;
-}
-
-static int64_t cryptodev_builtin_sym_create_session(
-           CryptoDevBackend *backend,
-           CryptoDevBackendSymSessionInfo *sess_info,
-           uint32_t queue_index, Error **errp)
-{
-    CryptoDevBackendBuiltin *builtin =
-                      CRYPTODEV_BACKEND_BUILTIN(backend);
-    int64_t session_id = -1;
-    int ret;
-
-    switch (sess_info->op_code) {
-    case VIRTIO_CRYPTO_CIPHER_CREATE_SESSION:
-        ret = cryptodev_builtin_create_cipher_session(
-                           builtin, sess_info, errp);
-        if (ret < 0) {
-            return ret;
-        } else {
-            session_id = ret;
-        }
-        break;
-    case VIRTIO_CRYPTO_HASH_CREATE_SESSION:
-    case VIRTIO_CRYPTO_MAC_CREATE_SESSION:
-    default:
-        error_setg(errp, "Unsupported opcode :%" PRIu32 "",
-                   sess_info->op_code);
-        return -1;
-    }
-
-    return session_id;
-}
-
-static int cryptodev_builtin_sym_close_session(
-           CryptoDevBackend *backend,
-           uint64_t session_id,
-           uint32_t queue_index, Error **errp)
-{
-    CryptoDevBackendBuiltin *builtin =
-                      CRYPTODEV_BACKEND_BUILTIN(backend);
-
-    if (session_id >= MAX_NUM_SESSIONS ||
-              builtin->sessions[session_id] == NULL) {
-        error_setg(errp, "Cannot find a valid session id: %" PRIu64 "",
-                      session_id);
-        return -1;
-    }
-
-    qcrypto_cipher_free(builtin->sessions[session_id]->cipher);
-    g_free(builtin->sessions[session_id]);
-    builtin->sessions[session_id] = NULL;
-    return 0;
-}
-
-static int cryptodev_builtin_sym_operation(
-                 CryptoDevBackend *backend,
-                 CryptoDevBackendSymOpInfo *op_info,
-                 uint32_t queue_index, Error **errp)
-{
-    CryptoDevBackendBuiltin *builtin =
-                      CRYPTODEV_BACKEND_BUILTIN(backend);
-    CryptoDevBackendBuiltinSession *sess;
-    int ret;
-
-    if (op_info->session_id >= MAX_NUM_SESSIONS ||
-              builtin->sessions[op_info->session_id] == NULL) {
-        error_setg(errp, "Cannot find a valid session id: %" PRIu64 "",
-                   op_info->session_id);
-        return -VIRTIO_CRYPTO_INVSESS;
-    }
-
-    if (op_info->op_type == VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING) {
-        error_setg(errp,
-               "Algorithm chain is unsupported for cryptdoev-builtin");
-        return -VIRTIO_CRYPTO_NOTSUPP;
-    }
-
-    sess = builtin->sessions[op_info->session_id];
-
-    if (op_info->iv_len > 0) {
-        ret = qcrypto_cipher_setiv(sess->cipher, op_info->iv,
-                                   op_info->iv_len, errp);
-        if (ret < 0) {
-            return -VIRTIO_CRYPTO_ERR;
-        }
-    }
-
-    if (sess->direction == VIRTIO_CRYPTO_OP_ENCRYPT) {
-        ret = qcrypto_cipher_encrypt(sess->cipher, op_info->src,
-                                     op_info->dst, op_info->src_len, errp);
-        if (ret < 0) {
-            return -VIRTIO_CRYPTO_ERR;
-        }
-    } else {
-        ret = qcrypto_cipher_decrypt(sess->cipher, op_info->src,
-                                     op_info->dst, op_info->src_len, errp);
-        if (ret < 0) {
-            return -VIRTIO_CRYPTO_ERR;
-        }
-    }
-    return VIRTIO_CRYPTO_OK;
-}
-
-static void cryptodev_builtin_cleanup(
-             CryptoDevBackend *backend,
-             Error **errp)
-{
-    CryptoDevBackendBuiltin *builtin =
-                      CRYPTODEV_BACKEND_BUILTIN(backend);
-    size_t i;
-    int queues = backend->conf.peers.queues;
-    CryptoDevBackendClient *cc;
-
-    for (i = 0; i < MAX_NUM_SESSIONS; i++) {
-        if (builtin->sessions[i] != NULL) {
-            cryptodev_builtin_sym_close_session(
-                    backend, i, 0, errp);
-        }
-    }
-
-    for (i = 0; i < queues; i++) {
-        cc = backend->conf.peers.ccs[i];
-        if (cc) {
-            cryptodev_backend_free_client(cc);
-            backend->conf.peers.ccs[i] = NULL;
-        }
-    }
-
-    cryptodev_backend_set_ready(backend, false);
-}
-
-static void
-cryptodev_builtin_class_init(ObjectClass *oc, void *data)
-{
-    CryptoDevBackendClass *bc = CRYPTODEV_BACKEND_CLASS(oc);
-
-    bc->init = cryptodev_builtin_init;
-    bc->cleanup = cryptodev_builtin_cleanup;
-    bc->create_session = cryptodev_builtin_sym_create_session;
-    bc->close_session = cryptodev_builtin_sym_close_session;
-    bc->do_sym_op = cryptodev_builtin_sym_operation;
-}
-
-static const TypeInfo cryptodev_builtin_info = {
-    .name = TYPE_CRYPTODEV_BACKEND_BUILTIN,
-    .parent = TYPE_CRYPTODEV_BACKEND,
-    .class_init = cryptodev_builtin_class_init,
-    .instance_size = sizeof(CryptoDevBackendBuiltin),
-};
-
-static void
-cryptodev_builtin_register_types(void)
-{
-    type_register_static(&cryptodev_builtin_info);
-}
-
-type_init(cryptodev_builtin_register_types);

backends/cryptodev.c

@@ -1,271 +0,0 @@
-/*
- * QEMU Crypto Device Implementation
- *
- * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
- *
- * Authors:
- *    Gonglei <arei.gonglei@huawei.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include "qemu/osdep.h"
-#include "sysemu/cryptodev.h"
-#include "hw/boards.h"
-#include "qapi/error.h"
-#include "qapi/visitor.h"
-#include "qapi-types.h"
-#include "qapi-visit.h"
-#include "qemu/config-file.h"
-#include "qom/object_interfaces.h"
-#include "hw/virtio/virtio-crypto.h"
-
-
-static QTAILQ_HEAD(, CryptoDevBackendClient) crypto_clients;
-
-
-CryptoDevBackendClient *
-cryptodev_backend_new_client(const char *model,
-                                    const char *name)
-{
-    CryptoDevBackendClient *cc;
-
-    cc = g_malloc0(sizeof(CryptoDevBackendClient));
-    cc->model = g_strdup(model);
-    if (name) {
-        cc->name = g_strdup(name);
-    }
-
-    QTAILQ_INSERT_TAIL(&crypto_clients, cc, next);
-
-    return cc;
-}
-
-void cryptodev_backend_free_client(
-                  CryptoDevBackendClient *cc)
-{
-    QTAILQ_REMOVE(&crypto_clients, cc, next);
-    g_free(cc->name);
-    g_free(cc->model);
-    g_free(cc->info_str);
-    g_free(cc);
-}
-
-void cryptodev_backend_cleanup(
-             CryptoDevBackend *backend,
-             Error **errp)
-{
-    CryptoDevBackendClass *bc =
-                  CRYPTODEV_BACKEND_GET_CLASS(backend);
-
-    if (bc->cleanup) {
-        bc->cleanup(backend, errp);
-    }
-}
-
-int64_t cryptodev_backend_sym_create_session(
-           CryptoDevBackend *backend,
-           CryptoDevBackendSymSessionInfo *sess_info,
-           uint32_t queue_index, Error **errp)
-{
-    CryptoDevBackendClass *bc =
-                      CRYPTODEV_BACKEND_GET_CLASS(backend);
-
-    if (bc->create_session) {
-        return bc->create_session(backend, sess_info, queue_index, errp);
-    }
-
-    return -1;
-}
-
-int cryptodev_backend_sym_close_session(
-           CryptoDevBackend *backend,
-           uint64_t session_id,
-           uint32_t queue_index, Error **errp)
-{
-    CryptoDevBackendClass *bc =
-                      CRYPTODEV_BACKEND_GET_CLASS(backend);
-
-    if (bc->close_session) {
-        return bc->close_session(backend, session_id, queue_index, errp);
-    }
-
-    return -1;
-}
-
-static int cryptodev_backend_sym_operation(
-                 CryptoDevBackend *backend,
-                 CryptoDevBackendSymOpInfo *op_info,
-                 uint32_t queue_index, Error **errp)
-{
-    CryptoDevBackendClass *bc =
-                      CRYPTODEV_BACKEND_GET_CLASS(backend);
-
-    if (bc->do_sym_op) {
-        return bc->do_sym_op(backend, op_info, queue_index, errp);
-    }
-
-    return -VIRTIO_CRYPTO_ERR;
-}
-
-int cryptodev_backend_crypto_operation(
-                 CryptoDevBackend *backend,
-                 void *opaque,
-                 uint32_t queue_index, Error **errp)
-{
-    VirtIOCryptoReq *req = opaque;
-
-    if (req->flags == CRYPTODEV_BACKEND_ALG_SYM) {
-        CryptoDevBackendSymOpInfo *op_info;
-        op_info = req->u.sym_op_info;
-
-        return cryptodev_backend_sym_operation(backend,
-                         op_info, queue_index, errp);
-    } else {
-        error_setg(errp, "Unsupported cryptodev alg type: %" PRIu32 "",
-                   req->flags);
-       return -VIRTIO_CRYPTO_NOTSUPP;
-    }
-
-    return -VIRTIO_CRYPTO_ERR;
-}
-
-static void
-cryptodev_backend_get_queues(Object *obj, Visitor *v, const char *name,
-                             void *opaque, Error **errp)
-{
-    CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
-    uint32_t value = backend->conf.peers.queues;
-
-    visit_type_uint32(v, name, &value, errp);
-}
-
-static void
-cryptodev_backend_set_queues(Object *obj, Visitor *v, const char *name,
-                             void *opaque, Error **errp)
-{
-    CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
-    Error *local_err = NULL;
-    uint32_t value;
-
-    visit_type_uint32(v, name, &value, &local_err);
-    if (local_err) {
-        goto out;
-    }
-    if (!value) {
-        error_setg(&local_err, "Property '%s.%s' doesn't take value '%"
-                   PRIu32 "'", object_get_typename(obj), name, value);
-        goto out;
-    }
-    backend->conf.peers.queues = value;
-out:
-    error_propagate(errp, local_err);
-}
-
-static void
-cryptodev_backend_complete(UserCreatable *uc, Error **errp)
-{
-    CryptoDevBackend *backend = CRYPTODEV_BACKEND(uc);
-    CryptoDevBackendClass *bc = CRYPTODEV_BACKEND_GET_CLASS(uc);
-    Error *local_err = NULL;
-
-    if (bc->init) {
-        bc->init(backend, &local_err);
-        if (local_err) {
-            goto out;
-        }
-    }
-
-    return;
-
-out:
-    error_propagate(errp, local_err);
-}
-
-void cryptodev_backend_set_used(CryptoDevBackend *backend, bool used)
-{
-    backend->is_used = used;
-}
-
-bool cryptodev_backend_is_used(CryptoDevBackend *backend)
-{
-    return backend->is_used;
-}
-
-void cryptodev_backend_set_ready(CryptoDevBackend *backend, bool ready)
-{
-    backend->ready = ready;
-}
-
-bool cryptodev_backend_is_ready(CryptoDevBackend *backend)
-{
-    return backend->ready;
-}
-
-static bool
-cryptodev_backend_can_be_deleted(UserCreatable *uc, Error **errp)
-{
-    return !cryptodev_backend_is_used(CRYPTODEV_BACKEND(uc));
-}
-
-static void cryptodev_backend_instance_init(Object *obj)
-{
-    object_property_add(obj, "queues", "int",
-                          cryptodev_backend_get_queues,
-                          cryptodev_backend_set_queues,
-                          NULL, NULL, NULL);
-    /* Initialize devices' queues property to 1 */
-    object_property_set_int(obj, 1, "queues", NULL);
-}
-
-static void cryptodev_backend_finalize(Object *obj)
-{
-    CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
-
-    cryptodev_backend_cleanup(backend, NULL);
-}
-
-static void
-cryptodev_backend_class_init(ObjectClass *oc, void *data)
-{
-    UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
-
-    ucc->complete = cryptodev_backend_complete;
-    ucc->can_be_deleted = cryptodev_backend_can_be_deleted;
-
-    QTAILQ_INIT(&crypto_clients);
-}
-
-static const TypeInfo cryptodev_backend_info = {
-    .name = TYPE_CRYPTODEV_BACKEND,
-    .parent = TYPE_OBJECT,
-    .instance_size = sizeof(CryptoDevBackend),
-    .instance_init = cryptodev_backend_instance_init,
-    .instance_finalize = cryptodev_backend_finalize,
-    .class_size = sizeof(CryptoDevBackendClass),
-    .class_init = cryptodev_backend_class_init,
-    .interfaces = (InterfaceInfo[]) {
-        { TYPE_USER_CREATABLE },
-        { }
-    }
-};
-
-static void
-cryptodev_backend_register_types(void)
-{
-    type_register_static(&cryptodev_backend_info);
-}
-
-type_init(cryptodev_backend_register_types);

backends/hostmem-file.c

@@ -1,141 +0,0 @@
-/*
- * QEMU Host Memory Backend for hugetlbfs
- *
- * Copyright (C) 2013-2014 Red Hat Inc
- *
- * Authors:
- *   Paolo Bonzini <pbonzini@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu-common.h"
-#include "sysemu/hostmem.h"
-#include "sysemu/sysemu.h"
-#include "qom/object_interfaces.h"
-
-/* hostmem-file.c */
-/**
- * @TYPE_MEMORY_BACKEND_FILE:
- * name of backend that uses mmap on a file descriptor
- */
-#define TYPE_MEMORY_BACKEND_FILE "memory-backend-file"
-
-#define MEMORY_BACKEND_FILE(obj) \
-    OBJECT_CHECK(HostMemoryBackendFile, (obj), TYPE_MEMORY_BACKEND_FILE)
-
-typedef struct HostMemoryBackendFile HostMemoryBackendFile;
-
-struct HostMemoryBackendFile {
-    HostMemoryBackend parent_obj;
-
-    bool share;
-    char *mem_path;
-};
-
-static void
-file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
-{
-    HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(backend);
-
-    if (!backend->size) {
-        error_setg(errp, "can't create backend with size 0");
-        return;
-    }
-    if (!fb->mem_path) {
-        error_setg(errp, "mem-path property not set");
-        return;
-    }
-#ifndef CONFIG_LINUX
-    error_setg(errp, "-mem-path not supported on this host");
-#else
-    if (!host_memory_backend_mr_inited(backend)) {
-        gchar *path;
-        backend->force_prealloc = mem_prealloc;
-        path = object_get_canonical_path(OBJECT(backend));
-        memory_region_init_ram_from_file(&backend->mr, OBJECT(backend),
-                                 path,
-                                 backend->size, fb->share,
-                                 fb->mem_path, errp);
-        g_free(path);
-    }
-#endif
-}
-
-static char *get_mem_path(Object *o, Error **errp)
-{
-    HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
-
-    return g_strdup(fb->mem_path);
-}
-
-static void set_mem_path(Object *o, const char *str, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(o);
-    HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
-
-    if (host_memory_backend_mr_inited(backend)) {
-        error_setg(errp, "cannot change property value");
-        return;
-    }
-    g_free(fb->mem_path);
-    fb->mem_path = g_strdup(str);
-}
-
-static bool file_memory_backend_get_share(Object *o, Error **errp)
-{
-    HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
-
-    return fb->share;
-}
-
-static void file_memory_backend_set_share(Object *o, bool value, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(o);
-    HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
-
-    if (host_memory_backend_mr_inited(backend)) {
-        error_setg(errp, "cannot change property value");
-        return;
-    }
-    fb->share = value;
-}
-
-static void
-file_backend_class_init(ObjectClass *oc, void *data)
-{
-    HostMemoryBackendClass *bc = MEMORY_BACKEND_CLASS(oc);
-
-    bc->alloc = file_backend_memory_alloc;
-
-    object_class_property_add_bool(oc, "share",
-        file_memory_backend_get_share, file_memory_backend_set_share,
-        &error_abort);
-    object_class_property_add_str(oc, "mem-path",
-        get_mem_path, set_mem_path,
-        &error_abort);
-}
-
-static void file_backend_instance_finalize(Object *o)
-{
-    HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
-
-    g_free(fb->mem_path);
-}
-
-static const TypeInfo file_backend_info = {
-    .name = TYPE_MEMORY_BACKEND_FILE,
-    .parent = TYPE_MEMORY_BACKEND,
-    .class_init = file_backend_class_init,
-    .instance_finalize = file_backend_instance_finalize,
-    .instance_size = sizeof(HostMemoryBackendFile),
-};
-
-static void register_types(void)
-{
-    type_register_static(&file_backend_info);
-}
-
-type_init(register_types);

backends/hostmem-ram.c

@@ -1,55 +0,0 @@
-/*
- * QEMU Host Memory Backend
- *
- * Copyright (C) 2013-2014 Red Hat Inc
- *
- * Authors:
- *   Igor Mammedov <imammedo@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-#include "qemu/osdep.h"
-#include "sysemu/hostmem.h"
-#include "qapi/error.h"
-#include "qom/object_interfaces.h"
-
-#define TYPE_MEMORY_BACKEND_RAM "memory-backend-ram"
-
-
-static void
-ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
-{
-    char *path;
-
-    if (!backend->size) {
-        error_setg(errp, "can't create backend with size 0");
-        return;
-    }
-
-    path = object_get_canonical_path_component(OBJECT(backend));
-    memory_region_init_ram(&backend->mr, OBJECT(backend), path,
-                           backend->size, errp);
-    g_free(path);
-}
-
-static void
-ram_backend_class_init(ObjectClass *oc, void *data)
-{
-    HostMemoryBackendClass *bc = MEMORY_BACKEND_CLASS(oc);
-
-    bc->alloc = ram_backend_memory_alloc;
-}
-
-static const TypeInfo ram_backend_info = {
-    .name = TYPE_MEMORY_BACKEND_RAM,
-    .parent = TYPE_MEMORY_BACKEND,
-    .class_init = ram_backend_class_init,
-};
-
-static void register_types(void)
-{
-    type_register_static(&ram_backend_info);
-}
-
-type_init(register_types);

backends/hostmem.c

@@ -1,430 +0,0 @@
-/*
- * QEMU Host Memory Backend
- *
- * Copyright (C) 2013-2014 Red Hat Inc
- *
- * Authors:
- *   Igor Mammedov <imammedo@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-#include "qemu/osdep.h"
-#include "sysemu/hostmem.h"
-#include "hw/boards.h"
-#include "qapi/error.h"
-#include "qapi/visitor.h"
-#include "qapi-types.h"
-#include "qapi-visit.h"
-#include "qemu/config-file.h"
-#include "qom/object_interfaces.h"
-
-#ifdef CONFIG_NUMA
-#include <numaif.h>
-QEMU_BUILD_BUG_ON(HOST_MEM_POLICY_DEFAULT != MPOL_DEFAULT);
-QEMU_BUILD_BUG_ON(HOST_MEM_POLICY_PREFERRED != MPOL_PREFERRED);
-QEMU_BUILD_BUG_ON(HOST_MEM_POLICY_BIND != MPOL_BIND);
-QEMU_BUILD_BUG_ON(HOST_MEM_POLICY_INTERLEAVE != MPOL_INTERLEAVE);
-#endif
-
-static void
-host_memory_backend_get_size(Object *obj, Visitor *v, const char *name,
-                             void *opaque, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-    uint64_t value = backend->size;
-
-    visit_type_size(v, name, &value, errp);
-}
-
-static void
-host_memory_backend_set_size(Object *obj, Visitor *v, const char *name,
-                             void *opaque, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-    Error *local_err = NULL;
-    uint64_t value;
-
-    if (host_memory_backend_mr_inited(backend)) {
-        error_setg(&local_err, "cannot change property value");
-        goto out;
-    }
-
-    visit_type_size(v, name, &value, &local_err);
-    if (local_err) {
-        goto out;
-    }
-    if (!value) {
-        error_setg(&local_err, "Property '%s.%s' doesn't take value '%"
-                   PRIu64 "'", object_get_typename(obj), name, value);
-        goto out;
-    }
-    backend->size = value;
-out:
-    error_propagate(errp, local_err);
-}
-
-static void
-host_memory_backend_get_host_nodes(Object *obj, Visitor *v, const char *name,
-                                   void *opaque, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-    uint16List *host_nodes = NULL;
-    uint16List **node = &host_nodes;
-    unsigned long value;
-
-    value = find_first_bit(backend->host_nodes, MAX_NODES);
-    if (value == MAX_NODES) {
-        return;
-    }
-
-    *node = g_malloc0(sizeof(**node));
-    (*node)->value = value;
-    node = &(*node)->next;
-
-    do {
-        value = find_next_bit(backend->host_nodes, MAX_NODES, value + 1);
-        if (value == MAX_NODES) {
-            break;
-        }
-
-        *node = g_malloc0(sizeof(**node));
-        (*node)->value = value;
-        node = &(*node)->next;
-    } while (true);
-
-    visit_type_uint16List(v, name, &host_nodes, errp);
-}
-
-static void
-host_memory_backend_set_host_nodes(Object *obj, Visitor *v, const char *name,
-                                   void *opaque, Error **errp)
-{
-#ifdef CONFIG_NUMA
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-    uint16List *l = NULL;
-
-    visit_type_uint16List(v, name, &l, errp);
-
-    while (l) {
-        bitmap_set(backend->host_nodes, l->value, 1);
-        l = l->next;
-    }
-#else
-    error_setg(errp, "NUMA node binding are not supported by this QEMU");
-#endif
-}
-
-static int
-host_memory_backend_get_policy(Object *obj, Error **errp G_GNUC_UNUSED)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-    return backend->policy;
-}
-
-static void
-host_memory_backend_set_policy(Object *obj, int policy, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-    backend->policy = policy;
-
-#ifndef CONFIG_NUMA
-    if (policy != HOST_MEM_POLICY_DEFAULT) {
-        error_setg(errp, "NUMA policies are not supported by this QEMU");
-    }
-#endif
-}
-
-static bool host_memory_backend_get_merge(Object *obj, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-
-    return backend->merge;
-}
-
-static void host_memory_backend_set_merge(Object *obj, bool value, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-
-    if (!host_memory_backend_mr_inited(backend)) {
-        backend->merge = value;
-        return;
-    }
-
-    if (value != backend->merge) {
-        void *ptr = memory_region_get_ram_ptr(&backend->mr);
-        uint64_t sz = memory_region_size(&backend->mr);
-
-        qemu_madvise(ptr, sz,
-                     value ? QEMU_MADV_MERGEABLE : QEMU_MADV_UNMERGEABLE);
-        backend->merge = value;
-    }
-}
-
-static bool host_memory_backend_get_dump(Object *obj, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-
-    return backend->dump;
-}
-
-static void host_memory_backend_set_dump(Object *obj, bool value, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-
-    if (!host_memory_backend_mr_inited(backend)) {
-        backend->dump = value;
-        return;
-    }
-
-    if (value != backend->dump) {
-        void *ptr = memory_region_get_ram_ptr(&backend->mr);
-        uint64_t sz = memory_region_size(&backend->mr);
-
-        qemu_madvise(ptr, sz,
-                     value ? QEMU_MADV_DODUMP : QEMU_MADV_DONTDUMP);
-        backend->dump = value;
-    }
-}
-
-static bool host_memory_backend_get_prealloc(Object *obj, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-
-    return backend->prealloc || backend->force_prealloc;
-}
-
-static void host_memory_backend_set_prealloc(Object *obj, bool value,
-                                             Error **errp)
-{
-    Error *local_err = NULL;
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-
-    if (backend->force_prealloc) {
-        if (value) {
-            error_setg(errp,
-                       "remove -mem-prealloc to use the prealloc property");
-            return;
-        }
-    }
-
-    if (!host_memory_backend_mr_inited(backend)) {
-        backend->prealloc = value;
-        return;
-    }
-
-    if (value && !backend->prealloc) {
-        int fd = memory_region_get_fd(&backend->mr);
-        void *ptr = memory_region_get_ram_ptr(&backend->mr);
-        uint64_t sz = memory_region_size(&backend->mr);
-
-        os_mem_prealloc(fd, ptr, sz, smp_cpus, &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-            return;
-        }
-        backend->prealloc = true;
-    }
-}
-
-static void host_memory_backend_init(Object *obj)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-    MachineState *machine = MACHINE(qdev_get_machine());
-
-    backend->merge = machine_mem_merge(machine);
-    backend->dump = machine_dump_guest_core(machine);
-    backend->prealloc = mem_prealloc;
-}
-
-bool host_memory_backend_mr_inited(HostMemoryBackend *backend)
-{
-    /*
-     * NOTE: We forbid zero-length memory backend, so here zero means
-     * "we haven't inited the backend memory region yet".
-     */
-    return memory_region_size(&backend->mr) != 0;
-}
-
-MemoryRegion *
-host_memory_backend_get_memory(HostMemoryBackend *backend, Error **errp)
-{
-    return host_memory_backend_mr_inited(backend) ? &backend->mr : NULL;
-}
-
-void host_memory_backend_set_mapped(HostMemoryBackend *backend, bool mapped)
-{
-    backend->is_mapped = mapped;
-}
-
-bool host_memory_backend_is_mapped(HostMemoryBackend *backend)
-{
-    return backend->is_mapped;
-}
-
-static void
-host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(uc);
-    HostMemoryBackendClass *bc = MEMORY_BACKEND_GET_CLASS(uc);
-    Error *local_err = NULL;
-    void *ptr;
-    uint64_t sz;
-
-    if (bc->alloc) {
-        bc->alloc(backend, &local_err);
-        if (local_err) {
-            goto out;
-        }
-
-        ptr = memory_region_get_ram_ptr(&backend->mr);
-        sz = memory_region_size(&backend->mr);
-
-        if (backend->merge) {
-            qemu_madvise(ptr, sz, QEMU_MADV_MERGEABLE);
-        }
-        if (!backend->dump) {
-            qemu_madvise(ptr, sz, QEMU_MADV_DONTDUMP);
-        }
-#ifdef CONFIG_NUMA
-        unsigned long lastbit = find_last_bit(backend->host_nodes, MAX_NODES);
-        /* lastbit == MAX_NODES means maxnode = 0 */
-        unsigned long maxnode = (lastbit + 1) % (MAX_NODES + 1);
-        /* ensure policy won't be ignored in case memory is preallocated
-         * before mbind(). note: MPOL_MF_STRICT is ignored on hugepages so
-         * this doesn't catch hugepage case. */
-        unsigned flags = MPOL_MF_STRICT | MPOL_MF_MOVE;
-
-        /* check for invalid host-nodes and policies and give more verbose
-         * error messages than mbind(). */
-        if (maxnode && backend->policy == MPOL_DEFAULT) {
-            error_setg(errp, "host-nodes must be empty for policy default,"
-                       " or you should explicitly specify a policy other"
-                       " than default");
-            return;
-        } else if (maxnode == 0 && backend->policy != MPOL_DEFAULT) {
-            error_setg(errp, "host-nodes must be set for policy %s",
-                       HostMemPolicy_lookup[backend->policy]);
-            return;
-        }
-
-        /* We can have up to MAX_NODES nodes, but we need to pass maxnode+1
-         * as argument to mbind() due to an old Linux bug (feature?) which
-         * cuts off the last specified node. This means backend->host_nodes
-         * must have MAX_NODES+1 bits available.
-         */
-        assert(sizeof(backend->host_nodes) >=
-               BITS_TO_LONGS(MAX_NODES + 1) * sizeof(unsigned long));
-        assert(maxnode <= MAX_NODES);
-        if (mbind(ptr, sz, backend->policy,
-                  maxnode ? backend->host_nodes : NULL, maxnode + 1, flags)) {
-            if (backend->policy != MPOL_DEFAULT || errno != ENOSYS) {
-                error_setg_errno(errp, errno,
-                                 "cannot bind memory to host NUMA nodes");
-                return;
-            }
-        }
-#endif
-        /* Preallocate memory after the NUMA policy has been instantiated.
-         * This is necessary to guarantee memory is allocated with
-         * specified NUMA policy in place.
-         */
-        if (backend->prealloc) {
-            os_mem_prealloc(memory_region_get_fd(&backend->mr), ptr, sz,
-                            smp_cpus, &local_err);
-            if (local_err) {
-                goto out;
-            }
-        }
-    }
-out:
-    error_propagate(errp, local_err);
-}
-
-static bool
-host_memory_backend_can_be_deleted(UserCreatable *uc, Error **errp)
-{
-    if (host_memory_backend_is_mapped(MEMORY_BACKEND(uc))) {
-        return false;
-    } else {
-        return true;
-    }
-}
-
-static char *get_id(Object *o, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(o);
-
-    return g_strdup(backend->id);
-}
-
-static void set_id(Object *o, const char *str, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(o);
-
-    if (backend->id) {
-        error_setg(errp, "cannot change property value");
-        return;
-    }
-    backend->id = g_strdup(str);
-}
-
-static void
-host_memory_backend_class_init(ObjectClass *oc, void *data)
-{
-    UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
-
-    ucc->complete = host_memory_backend_memory_complete;
-    ucc->can_be_deleted = host_memory_backend_can_be_deleted;
-
-    object_class_property_add_bool(oc, "merge",
-        host_memory_backend_get_merge,
-        host_memory_backend_set_merge, &error_abort);
-    object_class_property_add_bool(oc, "dump",
-        host_memory_backend_get_dump,
-        host_memory_backend_set_dump, &error_abort);
-    object_class_property_add_bool(oc, "prealloc",
-        host_memory_backend_get_prealloc,
-        host_memory_backend_set_prealloc, &error_abort);
-    object_class_property_add(oc, "size", "int",
-        host_memory_backend_get_size,
-        host_memory_backend_set_size,
-        NULL, NULL, &error_abort);
-    object_class_property_add(oc, "host-nodes", "int",
-        host_memory_backend_get_host_nodes,
-        host_memory_backend_set_host_nodes,
-        NULL, NULL, &error_abort);
-    object_class_property_add_enum(oc, "policy", "HostMemPolicy",
-        HostMemPolicy_lookup,
-        host_memory_backend_get_policy,
-        host_memory_backend_set_policy, &error_abort);
-    object_class_property_add_str(oc, "id", get_id, set_id, &error_abort);
-}
-
-static void host_memory_backend_finalize(Object *o)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(o);
-    g_free(backend->id);
-}
-
-static const TypeInfo host_memory_backend_info = {
-    .name = TYPE_MEMORY_BACKEND,
-    .parent = TYPE_OBJECT,
-    .abstract = true,
-    .class_size = sizeof(HostMemoryBackendClass),
-    .class_init = host_memory_backend_class_init,
-    .instance_size = sizeof(HostMemoryBackend),
-    .instance_init = host_memory_backend_init,
-    .instance_finalize = host_memory_backend_finalize,
-    .interfaces = (InterfaceInfo[]) {
-        { TYPE_USER_CREATABLE },
-        { }
-    }
-};
-
-static void register_types(void)
-{
-    type_register_static(&host_memory_backend_info);
-}
-
-type_init(register_types);

backends/rng-egd.c

@@ -1,174 +0,0 @@
-/*
- * QEMU Random Number Generator Backend
- *
- * Copyright IBM, Corp. 2012
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "sysemu/rng.h"
-#include "chardev/char-fe.h"
-#include "qapi/error.h"
-#include "qapi/qmp/qerror.h"
-
-#define TYPE_RNG_EGD "rng-egd"
-#define RNG_EGD(obj) OBJECT_CHECK(RngEgd, (obj), TYPE_RNG_EGD)
-
-typedef struct RngEgd
-{
-    RngBackend parent;
-
-    CharBackend chr;
-    char *chr_name;
-} RngEgd;
-
-static void rng_egd_request_entropy(RngBackend *b, RngRequest *req)
-{
-    RngEgd *s = RNG_EGD(b);
-    size_t size = req->size;
-
-    while (size > 0) {
-        uint8_t header[2];
-        uint8_t len = MIN(size, 255);
-
-        /* synchronous entropy request */
-        header[0] = 0x02;
-        header[1] = len;
-
-        /* XXX this blocks entire thread. Rewrite to use
-         * qemu_chr_fe_write and background I/O callbacks */
-        qemu_chr_fe_write_all(&s->chr, header, sizeof(header));
-
-        size -= len;
-    }
-}
-
-static int rng_egd_chr_can_read(void *opaque)
-{
-    RngEgd *s = RNG_EGD(opaque);
-    RngRequest *req;
-    int size = 0;
-
-    QSIMPLEQ_FOREACH(req, &s->parent.requests, next) {
-        size += req->size - req->offset;
-    }
-
-    return size;
-}
-
-static void rng_egd_chr_read(void *opaque, const uint8_t *buf, int size)
-{
-    RngEgd *s = RNG_EGD(opaque);
-    size_t buf_offset = 0;
-
-    while (size > 0 && !QSIMPLEQ_EMPTY(&s->parent.requests)) {
-        RngRequest *req = QSIMPLEQ_FIRST(&s->parent.requests);
-        int len = MIN(size, req->size - req->offset);
-
-        memcpy(req->data + req->offset, buf + buf_offset, len);
-        buf_offset += len;
-        req->offset += len;
-        size -= len;
-
-        if (req->offset == req->size) {
-            req->receive_entropy(req->opaque, req->data, req->size);
-
-            rng_backend_finalize_request(&s->parent, req);
-        }
-    }
-}
-
-static void rng_egd_opened(RngBackend *b, Error **errp)
-{
-    RngEgd *s = RNG_EGD(b);
-    Chardev *chr;
-
-    if (s->chr_name == NULL) {
-        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
-                   "chardev", "a valid character device");
-        return;
-    }
-
-    chr = qemu_chr_find(s->chr_name);
-    if (chr == NULL) {
-        error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
-                  "Device '%s' not found", s->chr_name);
-        return;
-    }
-    if (!qemu_chr_fe_init(&s->chr, chr, errp)) {
-        return;
-    }
-
-    /* FIXME we should resubmit pending requests when the CDS reconnects. */
-    qemu_chr_fe_set_handlers(&s->chr, rng_egd_chr_can_read,
-                             rng_egd_chr_read, NULL, s, NULL, true);
-}
-
-static void rng_egd_set_chardev(Object *obj, const char *value, Error **errp)
-{
-    RngBackend *b = RNG_BACKEND(obj);
-    RngEgd *s = RNG_EGD(b);
-
-    if (b->opened) {
-        error_setg(errp, QERR_PERMISSION_DENIED);
-    } else {
-        g_free(s->chr_name);
-        s->chr_name = g_strdup(value);
-    }
-}
-
-static char *rng_egd_get_chardev(Object *obj, Error **errp)
-{
-    RngEgd *s = RNG_EGD(obj);
-    Chardev *chr = qemu_chr_fe_get_driver(&s->chr);
-
-    if (chr && chr->label) {
-        return g_strdup(chr->label);
-    }
-
-    return NULL;
-}
-
-static void rng_egd_init(Object *obj)
-{
-    object_property_add_str(obj, "chardev",
-                            rng_egd_get_chardev, rng_egd_set_chardev,
-                            NULL);
-}
-
-static void rng_egd_finalize(Object *obj)
-{
-    RngEgd *s = RNG_EGD(obj);
-
-    qemu_chr_fe_deinit(&s->chr, false);
-    g_free(s->chr_name);
-}
-
-static void rng_egd_class_init(ObjectClass *klass, void *data)
-{
-    RngBackendClass *rbc = RNG_BACKEND_CLASS(klass);
-
-    rbc->request_entropy = rng_egd_request_entropy;
-    rbc->opened = rng_egd_opened;
-}
-
-static const TypeInfo rng_egd_info = {
-    .name = TYPE_RNG_EGD,
-    .parent = TYPE_RNG_BACKEND,
-    .instance_size = sizeof(RngEgd),
-    .class_init = rng_egd_class_init,
-    .instance_init = rng_egd_init,
-    .instance_finalize = rng_egd_finalize,
-};
-
-static void register_types(void)
-{
-    type_register_static(&rng_egd_info);
-}
-
-type_init(register_types);

backends/rng-random.c

@@ -1,153 +0,0 @@
-/*
- * QEMU Random Number Generator Backend
- *
- * Copyright IBM, Corp. 2012
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "sysemu/rng-random.h"
-#include "sysemu/rng.h"
-#include "qapi/error.h"
-#include "qapi/qmp/qerror.h"
-#include "qemu/main-loop.h"
-
-struct RngRandom
-{
-    RngBackend parent;
-
-    int fd;
-    char *filename;
-};
-
-/**
- * A simple and incomplete backend to request entropy from /dev/random.
- *
- * This backend exposes an additional "filename" property that can be used to
- * set the filename to use to open the backend.
- */
-
-static void entropy_available(void *opaque)
-{
-    RngRandom *s = RNG_RANDOM(opaque);
-
-    while (!QSIMPLEQ_EMPTY(&s->parent.requests)) {
-        RngRequest *req = QSIMPLEQ_FIRST(&s->parent.requests);
-        ssize_t len;
-
-        len = read(s->fd, req->data, req->size);
-        if (len < 0 && errno == EAGAIN) {
-            return;
-        }
-        g_assert(len != -1);
-
-        req->receive_entropy(req->opaque, req->data, len);
-
-        rng_backend_finalize_request(&s->parent, req);
-    }
-
-    /* We've drained all requests, the fd handler can be reset. */
-    qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
-}
-
-static void rng_random_request_entropy(RngBackend *b, RngRequest *req)
-{
-    RngRandom *s = RNG_RANDOM(b);
-
-    if (QSIMPLEQ_EMPTY(&s->parent.requests)) {
-        /* If there are no pending requests yet, we need to
-         * install our fd handler. */
-        qemu_set_fd_handler(s->fd, entropy_available, NULL, s);
-    }
-}
-
-static void rng_random_opened(RngBackend *b, Error **errp)
-{
-    RngRandom *s = RNG_RANDOM(b);
-
-    if (s->filename == NULL) {
-        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
-                   "filename", "a valid filename");
-    } else {
-        s->fd = qemu_open(s->filename, O_RDONLY | O_NONBLOCK);
-        if (s->fd == -1) {
-            error_setg_file_open(errp, errno, s->filename);
-        }
-    }
-}
-
-static char *rng_random_get_filename(Object *obj, Error **errp)
-{
-    RngRandom *s = RNG_RANDOM(obj);
-
-    return g_strdup(s->filename);
-}
-
-static void rng_random_set_filename(Object *obj, const char *filename,
-                                 Error **errp)
-{
-    RngBackend *b = RNG_BACKEND(obj);
-    RngRandom *s = RNG_RANDOM(obj);
-
-    if (b->opened) {
-        error_setg(errp, QERR_PERMISSION_DENIED);
-        return;
-    }
-
-    g_free(s->filename);
-    s->filename = g_strdup(filename);
-}
-
-static void rng_random_init(Object *obj)
-{
-    RngRandom *s = RNG_RANDOM(obj);
-
-    object_property_add_str(obj, "filename",
-                            rng_random_get_filename,
-                            rng_random_set_filename,
-                            NULL);
-
-    s->filename = g_strdup("/dev/random");
-    s->fd = -1;
-}
-
-static void rng_random_finalize(Object *obj)
-{
-    RngRandom *s = RNG_RANDOM(obj);
-
-    if (s->fd != -1) {
-        qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
-        qemu_close(s->fd);
-    }
-
-    g_free(s->filename);
-}
-
-static void rng_random_class_init(ObjectClass *klass, void *data)
-{
-    RngBackendClass *rbc = RNG_BACKEND_CLASS(klass);
-
-    rbc->request_entropy = rng_random_request_entropy;
-    rbc->opened = rng_random_opened;
-}
-
-static const TypeInfo rng_random_info = {
-    .name = TYPE_RNG_RANDOM,
-    .parent = TYPE_RNG_BACKEND,
-    .instance_size = sizeof(RngRandom),
-    .class_init = rng_random_class_init,
-    .instance_init = rng_random_init,
-    .instance_finalize = rng_random_finalize,
-};
-
-static void register_types(void)
-{
-    type_register_static(&rng_random_info);
-}
-
-type_init(register_types);

backends/rng.c

@@ -1,148 +0,0 @@
-/*
- * QEMU Random Number Generator Backend
- *
- * Copyright IBM, Corp. 2012
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "sysemu/rng.h"
-#include "qapi/error.h"
-#include "qapi/qmp/qerror.h"
-#include "qom/object_interfaces.h"
-
-void rng_backend_request_entropy(RngBackend *s, size_t size,
-                                 EntropyReceiveFunc *receive_entropy,
-                                 void *opaque)
-{
-    RngBackendClass *k = RNG_BACKEND_GET_CLASS(s);
-    RngRequest *req;
-
-    if (k->request_entropy) {
-        req = g_malloc(sizeof(*req));
-
-        req->offset = 0;
-        req->size = size;
-        req->receive_entropy = receive_entropy;
-        req->opaque = opaque;
-        req->data = g_malloc(req->size);
-
-        k->request_entropy(s, req);
-
-        QSIMPLEQ_INSERT_TAIL(&s->requests, req, next);
-    }
-}
-
-static bool rng_backend_prop_get_opened(Object *obj, Error **errp)
-{
-    RngBackend *s = RNG_BACKEND(obj);
-
-    return s->opened;
-}
-
-static void rng_backend_complete(UserCreatable *uc, Error **errp)
-{
-    object_property_set_bool(OBJECT(uc), true, "opened", errp);
-}
-
-static void rng_backend_prop_set_opened(Object *obj, bool value, Error **errp)
-{
-    RngBackend *s = RNG_BACKEND(obj);
-    RngBackendClass *k = RNG_BACKEND_GET_CLASS(s);
-    Error *local_err = NULL;
-
-    if (value == s->opened) {
-        return;
-    }
-
-    if (!value && s->opened) {
-        error_setg(errp, QERR_PERMISSION_DENIED);
-        return;
-    }
-
-    if (k->opened) {
-        k->opened(s, &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-            return;
-        }
-    }
-
-    s->opened = true;
-}
-
-static void rng_backend_free_request(RngRequest *req)
-{
-    g_free(req->data);
-    g_free(req);
-}
-
-static void rng_backend_free_requests(RngBackend *s)
-{
-    RngRequest *req, *next;
-
-    QSIMPLEQ_FOREACH_SAFE(req, &s->requests, next, next) {
-        rng_backend_free_request(req);
-    }
-
-    QSIMPLEQ_INIT(&s->requests);
-}
-
-void rng_backend_finalize_request(RngBackend *s, RngRequest *req)
-{
-    QSIMPLEQ_REMOVE(&s->requests, req, RngRequest, next);
-    rng_backend_free_request(req);
-}
-
-static void rng_backend_init(Object *obj)
-{
-    RngBackend *s = RNG_BACKEND(obj);
-
-    QSIMPLEQ_INIT(&s->requests);
-
-    object_property_add_bool(obj, "opened",
-                             rng_backend_prop_get_opened,
-                             rng_backend_prop_set_opened,
-                             NULL);
-}
-
-static void rng_backend_finalize(Object *obj)
-{
-    RngBackend *s = RNG_BACKEND(obj);
-
-    rng_backend_free_requests(s);
-}
-
-static void rng_backend_class_init(ObjectClass *oc, void *data)
-{
-    UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
-
-    ucc->complete = rng_backend_complete;
-}
-
-static const TypeInfo rng_backend_info = {
-    .name = TYPE_RNG_BACKEND,
-    .parent = TYPE_OBJECT,
-    .instance_size = sizeof(RngBackend),
-    .instance_init = rng_backend_init,
-    .instance_finalize = rng_backend_finalize,
-    .class_size = sizeof(RngBackendClass),
-    .class_init = rng_backend_class_init,
-    .abstract = true,
-    .interfaces = (InterfaceInfo[]) {
-        { TYPE_USER_CREATABLE },
-        { }
-    }
-};
-
-static void register_types(void)
-{
-    type_register_static(&rng_backend_info);
-}
-
-type_init(register_types);

backends/tpm.c

@@ -1,198 +0,0 @@
-/*
- * QEMU TPM Backend
- *
- * Copyright IBM, Corp. 2013
- *
- * Authors:
- *  Stefan Berger   <stefanb@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- * Based on backends/rng.c by Anthony Liguori
- */
-
-#include "qemu/osdep.h"
-#include "sysemu/tpm_backend.h"
-#include "qapi/error.h"
-#include "qapi/qmp/qerror.h"
-#include "sysemu/tpm.h"
-#include "qemu/thread.h"
-#include "sysemu/tpm_backend_int.h"
-
-enum TpmType tpm_backend_get_type(TPMBackend *s)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    return k->ops->type;
-}
-
-const char *tpm_backend_get_desc(TPMBackend *s)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    return k->ops->desc();
-}
-
-void tpm_backend_destroy(TPMBackend *s)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    k->ops->destroy(s);
-}
-
-int tpm_backend_init(TPMBackend *s, TPMState *state,
-                     TPMRecvDataCB *datacb)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    return k->ops->init(s, state, datacb);
-}
-
-int tpm_backend_startup_tpm(TPMBackend *s)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    return k->ops->startup_tpm(s);
-}
-
-bool tpm_backend_had_startup_error(TPMBackend *s)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    return k->ops->had_startup_error(s);
-}
-
-size_t tpm_backend_realloc_buffer(TPMBackend *s, TPMSizedBuffer *sb)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    return k->ops->realloc_buffer(sb);
-}
-
-void tpm_backend_deliver_request(TPMBackend *s)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    k->ops->deliver_request(s);
-}
-
-void tpm_backend_reset(TPMBackend *s)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    k->ops->reset(s);
-}
-
-void tpm_backend_cancel_cmd(TPMBackend *s)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    k->ops->cancel_cmd(s);
-}
-
-bool tpm_backend_get_tpm_established_flag(TPMBackend *s)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    return k->ops->get_tpm_established_flag(s);
-}
-
-int tpm_backend_reset_tpm_established_flag(TPMBackend *s, uint8_t locty)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    return k->ops->reset_tpm_established_flag(s, locty);
-}
-
-TPMVersion tpm_backend_get_tpm_version(TPMBackend *s)
-{
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-
-    return k->ops->get_tpm_version(s);
-}
-
-static bool tpm_backend_prop_get_opened(Object *obj, Error **errp)
-{
-    TPMBackend *s = TPM_BACKEND(obj);
-
-    return s->opened;
-}
-
-void tpm_backend_open(TPMBackend *s, Error **errp)
-{
-    object_property_set_bool(OBJECT(s), true, "opened", errp);
-}
-
-static void tpm_backend_prop_set_opened(Object *obj, bool value, Error **errp)
-{
-    TPMBackend *s = TPM_BACKEND(obj);
-    TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
-    Error *local_err = NULL;
-
-    if (value == s->opened) {
-        return;
-    }
-
-    if (!value && s->opened) {
-        error_setg(errp, QERR_PERMISSION_DENIED);
-        return;
-    }
-
-    if (k->opened) {
-        k->opened(s, &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-            return;
-        }
-    }
-
-    s->opened = true;
-}
-
-static void tpm_backend_instance_init(Object *obj)
-{
-    object_property_add_bool(obj, "opened",
-                             tpm_backend_prop_get_opened,
-                             tpm_backend_prop_set_opened,
-                             NULL);
-}
-
-void tpm_backend_thread_deliver_request(TPMBackendThread *tbt)
-{
-   g_thread_pool_push(tbt->pool, (gpointer)TPM_BACKEND_CMD_PROCESS_CMD, NULL);
-}
-
-void tpm_backend_thread_create(TPMBackendThread *tbt,
-                               GFunc func, gpointer user_data)
-{
-    if (!tbt->pool) {
-        tbt->pool = g_thread_pool_new(func, user_data, 1, TRUE, NULL);
-        g_thread_pool_push(tbt->pool, (gpointer)TPM_BACKEND_CMD_INIT, NULL);
-    }
-}
-
-void tpm_backend_thread_end(TPMBackendThread *tbt)
-{
-    if (tbt->pool) {
-        g_thread_pool_push(tbt->pool, (gpointer)TPM_BACKEND_CMD_END, NULL);
-        g_thread_pool_free(tbt->pool, FALSE, TRUE);
-        tbt->pool = NULL;
-    }
-}
-
-static const TypeInfo tpm_backend_info = {
-    .name = TYPE_TPM_BACKEND,
-    .parent = TYPE_OBJECT,
-    .instance_size = sizeof(TPMBackend),
-    .instance_init = tpm_backend_instance_init,
-    .class_size = sizeof(TPMBackendClass),
-    .abstract = true,
-};
-
-static void register_types(void)
-{
-    type_register_static(&tpm_backend_info);
-}
-
-type_init(register_types);

balloon.c

@@ -1,118 +0,0 @@
-/*
- * Generic Balloon handlers and management
- *
- * Copyright (c) 2003-2008 Fabrice Bellard
- * Copyright (C) 2011 Red Hat, Inc.
- * Copyright (C) 2011 Amit Shah <amit.shah@redhat.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "exec/cpu-common.h"
-#include "sysemu/kvm.h"
-#include "sysemu/balloon.h"
-#include "trace-root.h"
-#include "qmp-commands.h"
-#include "qapi/qmp/qerror.h"
-#include "qapi/qmp/qjson.h"
-
-static QEMUBalloonEvent *balloon_event_fn;
-static QEMUBalloonStatus *balloon_stat_fn;
-static void *balloon_opaque;
-static bool balloon_inhibited;
-
-bool qemu_balloon_is_inhibited(void)
-{
-    return balloon_inhibited;
-}
-
-void qemu_balloon_inhibit(bool state)
-{
-    balloon_inhibited = state;
-}
-
-static bool have_balloon(Error **errp)
-{
-    if (kvm_enabled() && !kvm_has_sync_mmu()) {
-        error_set(errp, ERROR_CLASS_KVM_MISSING_CAP,
-                  "Using KVM without synchronous MMU, balloon unavailable");
-        return false;
-    }
-    if (!balloon_event_fn) {
-        error_set(errp, ERROR_CLASS_DEVICE_NOT_ACTIVE,
-                  "No balloon device has been activated");
-        return false;
-    }
-    return true;
-}
-
-int qemu_add_balloon_handler(QEMUBalloonEvent *event_func,
-                             QEMUBalloonStatus *stat_func, void *opaque)
-{
-    if (balloon_event_fn || balloon_stat_fn || balloon_opaque) {
-        /* We're already registered one balloon handler.  How many can
-         * a guest really have?
-         */
-        return -1;
-    }
-    balloon_event_fn = event_func;
-    balloon_stat_fn = stat_func;
-    balloon_opaque = opaque;
-    return 0;
-}
-
-void qemu_remove_balloon_handler(void *opaque)
-{
-    if (balloon_opaque != opaque) {
-        return;
-    }
-    balloon_event_fn = NULL;
-    balloon_stat_fn = NULL;
-    balloon_opaque = NULL;
-}
-
-BalloonInfo *qmp_query_balloon(Error **errp)
-{
-    BalloonInfo *info;
-
-    if (!have_balloon(errp)) {
-        return NULL;
-    }
-
-    info = g_malloc0(sizeof(*info));
-    balloon_stat_fn(balloon_opaque, info);
-    return info;
-}
-
-void qmp_balloon(int64_t target, Error **errp)
-{
-    if (!have_balloon(errp)) {
-        return;
-    }
-
-    if (target <= 0) {
-        error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "target", "a size");
-        return;
-    }
-
-    trace_balloon_event(balloon_opaque, target);
-    balloon_event_fn(balloon_opaque, target);
-}

balloon.h

@@ -0,0 +1,27 @@
+/*
+ * Balloon
+ *
+ * Copyright IBM, Corp. 2008
+ *
+ * Authors:
+ *  Anthony Liguori   <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef _QEMU_BALLOON_H
+#define _QEMU_BALLOON_H
+
+#include "cpu-defs.h"
+
+typedef ram_addr_t (QEMUBalloonEvent)(void *opaque, ram_addr_t target);
+
+void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque);
+
+void qemu_balloon(ram_addr_t target);
+
+ram_addr_t qemu_balloon_status(void);
+
+#endif

block-migration.c

@@ -0,0 +1,541 @@
+/*
+ * QEMU live block migration
+ *
+ * Copyright IBM, Corp. 2009
+ *
+ * Authors:
+ *  Liran Schour   <lirans@il.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu-common.h"
+#include "block_int.h"
+#include "hw/hw.h"
+#include "qemu-queue.h"
+#include "monitor.h"
+#include "block-migration.h"
+#include <assert.h>
+
+#define BLOCK_SIZE (BDRV_SECTORS_PER_DIRTY_CHUNK << BDRV_SECTOR_BITS)
+
+#define BLK_MIG_FLAG_DEVICE_BLOCK       0x01
+#define BLK_MIG_FLAG_EOS                0x02
+#define BLK_MIG_FLAG_PROGRESS           0x04
+
+#define MAX_IS_ALLOCATED_SEARCH 65536
+#define MAX_BLOCKS_READ 10000
+#define BLOCKS_READ_CHANGE 100
+#define INITIAL_BLOCKS_READ 100
+
+//#define DEBUG_BLK_MIGRATION
+
+#ifdef DEBUG_BLK_MIGRATION
+#define dprintf(fmt, ...) \
+    do { printf("blk_migration: " fmt, ## __VA_ARGS__); } while (0)
+#else
+#define dprintf(fmt, ...) \
+    do { } while (0)
+#endif
+
+typedef struct BlkMigDevState {
+    BlockDriverState *bs;
+    int bulk_completed;
+    int shared_base;
+    int64_t cur_sector;
+    int64_t completed_sectors;
+    int64_t total_sectors;
+    int64_t dirty;
+    QSIMPLEQ_ENTRY(BlkMigDevState) entry;
+} BlkMigDevState;
+
+typedef struct BlkMigBlock {
+    uint8_t *buf;
+    BlkMigDevState *bmds;
+    int64_t sector;
+    struct iovec iov;
+    QEMUIOVector qiov;
+    BlockDriverAIOCB *aiocb;
+    int ret;
+    QSIMPLEQ_ENTRY(BlkMigBlock) entry;
+} BlkMigBlock;
+
+typedef struct BlkMigState {
+    int blk_enable;
+    int shared_base;
+    QSIMPLEQ_HEAD(bmds_list, BlkMigDevState) bmds_list;
+    QSIMPLEQ_HEAD(blk_list, BlkMigBlock) blk_list;
+    int submitted;
+    int read_done;
+    int transferred;
+    int64_t total_sector_sum;
+    int prev_progress;
+} BlkMigState;
+
+static BlkMigState block_mig_state;
+
+static void blk_send(QEMUFile *f, BlkMigBlock * blk)
+{
+    int len;
+
+    /* sector number and flags */
+    qemu_put_be64(f, (blk->sector << BDRV_SECTOR_BITS)
+                     | BLK_MIG_FLAG_DEVICE_BLOCK);
+
+    /* device name */
+    len = strlen(blk->bmds->bs->device_name);
+    qemu_put_byte(f, len);
+    qemu_put_buffer(f, (uint8_t *)blk->bmds->bs->device_name, len);
+
+    qemu_put_buffer(f, blk->buf, BLOCK_SIZE);
+}
+
+int blk_mig_active(void)
+{
+    return !QSIMPLEQ_EMPTY(&block_mig_state.bmds_list);
+}
+
+uint64_t blk_mig_bytes_transferred(void)
+{
+    BlkMigDevState *bmds;
+    uint64_t sum = 0;
+
+    QSIMPLEQ_FOREACH(bmds, &block_mig_state.bmds_list, entry) {
+        sum += bmds->completed_sectors;
+    }
+    return sum << BDRV_SECTOR_BITS;
+}
+
+uint64_t blk_mig_bytes_remaining(void)
+{
+    return blk_mig_bytes_total() - blk_mig_bytes_transferred();
+}
+
+uint64_t blk_mig_bytes_total(void)
+{
+    BlkMigDevState *bmds;
+    uint64_t sum = 0;
+
+    QSIMPLEQ_FOREACH(bmds, &block_mig_state.bmds_list, entry) {
+        sum += bmds->total_sectors;
+    }
+    return sum << BDRV_SECTOR_BITS;
+}
+
+static void blk_mig_read_cb(void *opaque, int ret)
+{
+    BlkMigBlock *blk = opaque;
+
+    blk->ret = ret;
+
+    QSIMPLEQ_INSERT_TAIL(&block_mig_state.blk_list, blk, entry);
+
+    block_mig_state.submitted--;
+    block_mig_state.read_done++;
+    assert(block_mig_state.submitted >= 0);
+}
+
+static int mig_save_device_bulk(Monitor *mon, QEMUFile *f,
+                                BlkMigDevState *bmds, int is_async)
+{
+    int64_t total_sectors = bmds->total_sectors;
+    int64_t cur_sector = bmds->cur_sector;
+    BlockDriverState *bs = bmds->bs;
+    BlkMigBlock *blk;
+    int nr_sectors;
+
+    if (bmds->shared_base) {
+        while (cur_sector < total_sectors &&
+               !bdrv_is_allocated(bs, cur_sector, MAX_IS_ALLOCATED_SEARCH,
+                                  &nr_sectors)) {
+            cur_sector += nr_sectors;
+        }
+    }
+
+    if (cur_sector >= total_sectors) {
+        bmds->cur_sector = bmds->completed_sectors = total_sectors;
+        return 1;
+    }
+
+    bmds->completed_sectors = cur_sector;
+
+    cur_sector &= ~((int64_t)BDRV_SECTORS_PER_DIRTY_CHUNK - 1);
+
+    /* we are going to transfer a full block even if it is not allocated */
+    nr_sectors = BDRV_SECTORS_PER_DIRTY_CHUNK;
+
+    if (total_sectors - cur_sector < BDRV_SECTORS_PER_DIRTY_CHUNK) {
+        nr_sectors = total_sectors - cur_sector;
+    }
+
+    blk = qemu_malloc(sizeof(BlkMigBlock));
+    blk->buf = qemu_malloc(BLOCK_SIZE);
+    blk->bmds = bmds;
+    blk->sector = cur_sector;
+
+    if (is_async) {
+        blk->iov.iov_base = blk->buf;
+        blk->iov.iov_len = nr_sectors * BDRV_SECTOR_SIZE;
+        qemu_iovec_init_external(&blk->qiov, &blk->iov, 1);
+
+        blk->aiocb = bdrv_aio_readv(bs, cur_sector, &blk->qiov,
+                                    nr_sectors, blk_mig_read_cb, blk);
+        if (!blk->aiocb) {
+            goto error;
+        }
+        block_mig_state.submitted++;
+    } else {
+        if (bdrv_read(bs, cur_sector, blk->buf, nr_sectors) < 0) {
+            goto error;
+        }
+        blk_send(f, blk);
+
+        qemu_free(blk->buf);
+        qemu_free(blk);
+    }
+
+    bdrv_reset_dirty(bs, cur_sector, nr_sectors);
+    bmds->cur_sector = cur_sector + nr_sectors;
+
+    return (bmds->cur_sector >= total_sectors);
+
+error:
+    monitor_printf(mon, "Error reading sector %" PRId64 "\n", cur_sector);
+    qemu_file_set_error(f);
+    qemu_free(blk->buf);
+    qemu_free(blk);
+    return 0;
+}
+
+static void set_dirty_tracking(int enable)
+{
+    BlkMigDevState *bmds;
+
+    QSIMPLEQ_FOREACH(bmds, &block_mig_state.bmds_list, entry) {
+        bdrv_set_dirty_tracking(bmds->bs, enable);
+    }
+}
+
+static void init_blk_migration(Monitor *mon, QEMUFile *f)
+{
+    BlkMigDevState *bmds;
+    BlockDriverState *bs;
+    int64_t sectors;
+
+    block_mig_state.submitted = 0;
+    block_mig_state.read_done = 0;
+    block_mig_state.transferred = 0;
+    block_mig_state.total_sector_sum = 0;
+    block_mig_state.prev_progress = -1;
+
+    for (bs = bdrv_first; bs != NULL; bs = bs->next) {
+        if (bs->type == BDRV_TYPE_HD) {
+            sectors = bdrv_getlength(bs) >> BDRV_SECTOR_BITS;
+            if (sectors == 0) {
+                continue;
+            }
+
+            bmds = qemu_mallocz(sizeof(BlkMigDevState));
+            bmds->bs = bs;
+            bmds->bulk_completed = 0;
+            bmds->total_sectors = sectors;
+            bmds->completed_sectors = 0;
+            bmds->shared_base = block_mig_state.shared_base;
+
+            block_mig_state.total_sector_sum += sectors;
+
+            if (bmds->shared_base) {
+                monitor_printf(mon, "Start migration for %s with shared base "
+                                    "image\n",
+                               bs->device_name);
+            } else {
+                monitor_printf(mon, "Start full migration for %s\n",
+                               bs->device_name);
+            }
+
+            QSIMPLEQ_INSERT_TAIL(&block_mig_state.bmds_list, bmds, entry);
+        }
+    }
+}
+
+static int blk_mig_save_bulked_block(Monitor *mon, QEMUFile *f, int is_async)
+{
+    int64_t completed_sector_sum = 0;
+    BlkMigDevState *bmds;
+    int progress;
+    int ret = 0;
+
+    QSIMPLEQ_FOREACH(bmds, &block_mig_state.bmds_list, entry) {
+        if (bmds->bulk_completed == 0) {
+            if (mig_save_device_bulk(mon, f, bmds, is_async) == 1) {
+                /* completed bulk section for this device */
+                bmds->bulk_completed = 1;
+            }
+            completed_sector_sum += bmds->completed_sectors;
+            ret = 1;
+            break;
+        } else {
+            completed_sector_sum += bmds->completed_sectors;
+        }
+    }
+
+    progress = completed_sector_sum * 100 / block_mig_state.total_sector_sum;
+    if (progress != block_mig_state.prev_progress) {
+        block_mig_state.prev_progress = progress;
+        qemu_put_be64(f, (progress << BDRV_SECTOR_BITS)
+                         | BLK_MIG_FLAG_PROGRESS);
+        monitor_printf(mon, "Completed %d %%\r", progress);
+        monitor_flush(mon);
+    }
+
+    return ret;
+}
+
+#define MAX_NUM_BLOCKS 4
+
+static void blk_mig_save_dirty_blocks(Monitor *mon, QEMUFile *f)
+{
+    BlkMigDevState *bmds;
+    BlkMigBlock blk;
+    int64_t sector;
+
+    blk.buf = qemu_malloc(BLOCK_SIZE);
+
+    QSIMPLEQ_FOREACH(bmds, &block_mig_state.bmds_list, entry) {
+        for (sector = 0; sector < bmds->cur_sector;) {
+            if (bdrv_get_dirty(bmds->bs, sector)) {
+                if (bdrv_read(bmds->bs, sector, blk.buf,
+                              BDRV_SECTORS_PER_DIRTY_CHUNK) < 0) {
+                    monitor_printf(mon, "Error reading sector %" PRId64 "\n",
+                                   sector);
+                    qemu_file_set_error(f);
+                    qemu_free(blk.buf);
+                    return;
+                }
+                blk.bmds = bmds;
+                blk.sector = sector;
+                blk_send(f, &blk);
+
+                bdrv_reset_dirty(bmds->bs, sector,
+                                 BDRV_SECTORS_PER_DIRTY_CHUNK);
+            }
+            sector += BDRV_SECTORS_PER_DIRTY_CHUNK;
+        }
+    }
+
+    qemu_free(blk.buf);
+}
+
+static void flush_blks(QEMUFile* f)
+{
+    BlkMigBlock *blk;
+
+    dprintf("%s Enter submitted %d read_done %d transferred %d\n",
+            __FUNCTION__, block_mig_state.submitted, block_mig_state.read_done,
+            block_mig_state.transferred);
+
+    while ((blk = QSIMPLEQ_FIRST(&block_mig_state.blk_list)) != NULL) {
+        if (qemu_file_rate_limit(f)) {
+            break;
+        }
+        if (blk->ret < 0) {
+            qemu_file_set_error(f);
+            break;
+        }
+        blk_send(f, blk);
+
+        QSIMPLEQ_REMOVE_HEAD(&block_mig_state.blk_list, entry);
+        qemu_free(blk->buf);
+        qemu_free(blk);
+
+        block_mig_state.read_done--;
+        block_mig_state.transferred++;
+        assert(block_mig_state.read_done >= 0);
+    }
+
+    dprintf("%s Exit submitted %d read_done %d transferred %d\n", __FUNCTION__,
+            block_mig_state.submitted, block_mig_state.read_done,
+            block_mig_state.transferred);
+}
+
+static int is_stage2_completed(void)
+{
+    BlkMigDevState *bmds;
+
+    if (block_mig_state.submitted > 0) {
+        return 0;
+    }
+
+    QSIMPLEQ_FOREACH(bmds, &block_mig_state.bmds_list, entry) {
+        if (bmds->bulk_completed == 0) {
+            return 0;
+        }
+    }
+
+    return 1;
+}
+
+static void blk_mig_cleanup(Monitor *mon)
+{
+    BlkMigDevState *bmds;
+    BlkMigBlock *blk;
+
+    while ((bmds = QSIMPLEQ_FIRST(&block_mig_state.bmds_list)) != NULL) {
+        QSIMPLEQ_REMOVE_HEAD(&block_mig_state.bmds_list, entry);
+        qemu_free(bmds);
+    }
+
+    while ((blk = QSIMPLEQ_FIRST(&block_mig_state.blk_list)) != NULL) {
+        QSIMPLEQ_REMOVE_HEAD(&block_mig_state.blk_list, entry);
+        qemu_free(blk->buf);
+        qemu_free(blk);
+    }
+
+    set_dirty_tracking(0);
+
+    monitor_printf(mon, "\n");
+}
+
+static int block_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
+{
+    dprintf("Enter save live stage %d submitted %d transferred %d\n",
+            stage, block_mig_state.submitted, block_mig_state.transferred);
+
+    if (stage < 0) {
+        blk_mig_cleanup(mon);
+        return 0;
+    }
+
+    if (block_mig_state.blk_enable != 1) {
+        /* no need to migrate storage */
+        qemu_put_be64(f, BLK_MIG_FLAG_EOS);
+        return 1;
+    }
+
+    if (stage == 1) {
+        init_blk_migration(mon, f);
+
+        /* start track dirty blocks */
+        set_dirty_tracking(1);
+    }
+
+    flush_blks(f);
+
+    if (qemu_file_has_error(f)) {
+        blk_mig_cleanup(mon);
+        return 0;
+    }
+
+    /* control the rate of transfer */
+    while ((block_mig_state.submitted +
+            block_mig_state.read_done) * BLOCK_SIZE <
+           qemu_file_get_rate_limit(f)) {
+        if (blk_mig_save_bulked_block(mon, f, 1) == 0) {
+            /* no more bulk blocks for now */
+            break;
+        }
+    }
+
+    flush_blks(f);
+
+    if (qemu_file_has_error(f)) {
+        blk_mig_cleanup(mon);
+        return 0;
+    }
+
+    if (stage == 3) {
+        while (blk_mig_save_bulked_block(mon, f, 0) != 0) {
+            /* empty */
+        }
+
+        blk_mig_save_dirty_blocks(mon, f);
+        blk_mig_cleanup(mon);
+
+        /* report completion */
+        qemu_put_be64(f, (100 << BDRV_SECTOR_BITS) | BLK_MIG_FLAG_PROGRESS);
+
+        if (qemu_file_has_error(f)) {
+            return 0;
+        }
+
+        monitor_printf(mon, "Block migration completed\n");
+    }
+
+    qemu_put_be64(f, BLK_MIG_FLAG_EOS);
+
+    return ((stage == 2) && is_stage2_completed());
+}
+
+static int block_load(QEMUFile *f, void *opaque, int version_id)
+{
+    static int banner_printed;
+    int len, flags;
+    char device_name[256];
+    int64_t addr;
+    BlockDriverState *bs;
+    uint8_t *buf;
+
+    do {
+        addr = qemu_get_be64(f);
+
+        flags = addr & ~BDRV_SECTOR_MASK;
+        addr >>= BDRV_SECTOR_BITS;
+
+        if (flags & BLK_MIG_FLAG_DEVICE_BLOCK) {
+            /* get device name */
+            len = qemu_get_byte(f);
+            qemu_get_buffer(f, (uint8_t *)device_name, len);
+            device_name[len] = '\0';
+
+            bs = bdrv_find(device_name);
+            if (!bs) {
+                fprintf(stderr, "Error unknown block device %s\n",
+                        device_name);
+                return -EINVAL;
+            }
+
+            buf = qemu_malloc(BLOCK_SIZE);
+
+            qemu_get_buffer(f, buf, BLOCK_SIZE);
+            bdrv_write(bs, addr, buf, BDRV_SECTORS_PER_DIRTY_CHUNK);
+
+            qemu_free(buf);
+        } else if (flags & BLK_MIG_FLAG_PROGRESS) {
+            if (!banner_printed) {
+                printf("Receiving block device images\n");
+                banner_printed = 1;
+            }
+            printf("Completed %d %%%c", (int)addr,
+                   (addr == 100) ? '\n' : '\r');
+            fflush(stdout);
+        } else if (!(flags & BLK_MIG_FLAG_EOS)) {
+            fprintf(stderr, "Unknown flags\n");
+            return -EINVAL;
+        }
+        if (qemu_file_has_error(f)) {
+            return -EIO;
+        }
+    } while (!(flags & BLK_MIG_FLAG_EOS));
+
+    return 0;
+}
+
+static void block_set_params(int blk_enable, int shared_base, void *opaque)
+{
+    block_mig_state.blk_enable = blk_enable;
+    block_mig_state.shared_base = shared_base;
+
+    /* shared base means that blk_enable = 1 */
+    block_mig_state.blk_enable |= shared_base;
+}
+
+void blk_mig_init(void)
+{
+    QSIMPLEQ_INIT(&block_mig_state.bmds_list);
+    QSIMPLEQ_INIT(&block_mig_state.blk_list);
+
+    register_savevm_live("block", 0, 1, block_set_params, block_save_live,
+                         NULL, block_load, &block_mig_state);
+}

block-migration.h

@@ -0,0 +1,23 @@
+/*
+ * QEMU live block migration
+ *
+ * Copyright IBM, Corp. 2009
+ *
+ * Authors:
+ *  Liran Schour   <lirans@il.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef BLOCK_MIGRATION_H
+#define BLOCK_MIGRATION_H
+
+void blk_mig_init(void);
+int blk_mig_active(void);
+uint64_t blk_mig_bytes_transferred(void);
+uint64_t blk_mig_bytes_remaining(void);
+uint64_t blk_mig_bytes_total(void);
+
+#endif /* BLOCK_MIGRATION_H */

block.h

@@ -0,0 +1,204 @@
+#ifndef BLOCK_H
+#define BLOCK_H
+
+#include "qemu-aio.h"
+#include "qemu-common.h"
+#include "qemu-option.h"
+#include "qobject.h"
+
+/* block.c */
+typedef struct BlockDriver BlockDriver;
+
+typedef struct BlockDriverInfo {
+    /* in bytes, 0 if irrelevant */
+    int cluster_size;
+    /* offset at which the VM state can be saved (0 if not possible) */
+    int64_t vm_state_offset;
+} BlockDriverInfo;
+
+typedef struct QEMUSnapshotInfo {
+    char id_str[128]; /* unique snapshot id */
+    /* the following fields are informative. They are not needed for
+       the consistency of the snapshot */
+    char name[256]; /* user choosen name */
+    uint32_t vm_state_size; /* VM state info size */
+    uint32_t date_sec; /* UTC date of the snapshot */
+    uint32_t date_nsec;
+    uint64_t vm_clock_nsec; /* VM clock relative to boot */
+} QEMUSnapshotInfo;
+
+#define BDRV_O_RDONLY      0x0000
+#define BDRV_O_RDWR        0x0002
+#define BDRV_O_ACCESS      0x0003
+#define BDRV_O_CREAT       0x0004 /* create an empty file */
+#define BDRV_O_SNAPSHOT    0x0008 /* open the file read only and save writes in a snapshot */
+#define BDRV_O_FILE        0x0010 /* open as a raw file (do not try to
+                                     use a disk image format on top of
+                                     it (default for
+                                     bdrv_file_open()) */
+#define BDRV_O_NOCACHE     0x0020 /* do not use the host page cache */
+#define BDRV_O_CACHE_WB    0x0040 /* use write-back caching */
+#define BDRV_O_NATIVE_AIO  0x0080 /* use native AIO instead of the thread pool */
+
+#define BDRV_O_CACHE_MASK  (BDRV_O_NOCACHE | BDRV_O_CACHE_WB)
+
+#define BDRV_SECTOR_BITS   9
+#define BDRV_SECTOR_SIZE   (1 << BDRV_SECTOR_BITS)
+#define BDRV_SECTOR_MASK   ~(BDRV_SECTOR_SIZE - 1);
+
+void bdrv_info_print(Monitor *mon, const QObject *data);
+void bdrv_info(Monitor *mon, QObject **ret_data);
+void bdrv_stats_print(Monitor *mon, const QObject *data);
+void bdrv_info_stats(Monitor *mon, QObject **ret_data);
+
+void bdrv_init(void);
+void bdrv_init_with_whitelist(void);
+BlockDriver *bdrv_find_format(const char *format_name);
+BlockDriver *bdrv_find_whitelisted_format(const char *format_name);
+int bdrv_create(BlockDriver *drv, const char* filename,
+    QEMUOptionParameter *options);
+int bdrv_create2(BlockDriver *drv,
+                 const char *filename, int64_t size_in_sectors,
+                 const char *backing_file, const char *backing_format,
+                 int flags);
+BlockDriverState *bdrv_new(const char *device_name);
+void bdrv_delete(BlockDriverState *bs);
+int bdrv_file_open(BlockDriverState **pbs, const char *filename, int flags);
+int bdrv_open(BlockDriverState *bs, const char *filename, int flags);
+int bdrv_open2(BlockDriverState *bs, const char *filename, int flags,
+               BlockDriver *drv);
+void bdrv_close(BlockDriverState *bs);
+int bdrv_check(BlockDriverState *bs);
+int bdrv_read(BlockDriverState *bs, int64_t sector_num,
+              uint8_t *buf, int nb_sectors);
+int bdrv_write(BlockDriverState *bs, int64_t sector_num,
+               const uint8_t *buf, int nb_sectors);
+int bdrv_pread(BlockDriverState *bs, int64_t offset,
+               void *buf, int count);
+int bdrv_pwrite(BlockDriverState *bs, int64_t offset,
+                const void *buf, int count);
+int bdrv_truncate(BlockDriverState *bs, int64_t offset);
+int64_t bdrv_getlength(BlockDriverState *bs);
+void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr);
+void bdrv_guess_geometry(BlockDriverState *bs, int *pcyls, int *pheads, int *psecs);
+int bdrv_commit(BlockDriverState *bs);
+void bdrv_register(BlockDriver *bdrv);
+
+/* async block I/O */
+typedef struct BlockDriverAIOCB BlockDriverAIOCB;
+typedef void BlockDriverCompletionFunc(void *opaque, int ret);
+typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector,
+				     int sector_num);
+BlockDriverAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num,
+                                 QEMUIOVector *iov, int nb_sectors,
+                                 BlockDriverCompletionFunc *cb, void *opaque);
+BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num,
+                                  QEMUIOVector *iov, int nb_sectors,
+                                  BlockDriverCompletionFunc *cb, void *opaque);
+BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs,
+				 BlockDriverCompletionFunc *cb, void *opaque);
+void bdrv_aio_cancel(BlockDriverAIOCB *acb);
+
+typedef struct BlockRequest {
+    /* Fields to be filled by multiwrite caller */
+    int64_t sector;
+    int nb_sectors;
+    QEMUIOVector *qiov;
+    BlockDriverCompletionFunc *cb;
+    void *opaque;
+
+    /* Filled by multiwrite implementation */
+    int error;
+} BlockRequest;
+
+int bdrv_aio_multiwrite(BlockDriverState *bs, BlockRequest *reqs,
+    int num_reqs);
+
+/* sg packet commands */
+int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf);
+BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs,
+        unsigned long int req, void *buf,
+        BlockDriverCompletionFunc *cb, void *opaque);
+
+/* Ensure contents are flushed to disk.  */
+void bdrv_flush(BlockDriverState *bs);
+void bdrv_flush_all(void);
+
+int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
+	int *pnum);
+
+#define BDRV_TYPE_HD     0
+#define BDRV_TYPE_CDROM  1
+#define BDRV_TYPE_FLOPPY 2
+#define BIOS_ATA_TRANSLATION_AUTO   0
+#define BIOS_ATA_TRANSLATION_NONE   1
+#define BIOS_ATA_TRANSLATION_LBA    2
+#define BIOS_ATA_TRANSLATION_LARGE  3
+#define BIOS_ATA_TRANSLATION_RECHS  4
+
+void bdrv_set_geometry_hint(BlockDriverState *bs,
+                            int cyls, int heads, int secs);
+void bdrv_set_type_hint(BlockDriverState *bs, int type);
+void bdrv_set_translation_hint(BlockDriverState *bs, int translation);
+void bdrv_get_geometry_hint(BlockDriverState *bs,
+                            int *pcyls, int *pheads, int *psecs);
+int bdrv_get_type_hint(BlockDriverState *bs);
+int bdrv_get_translation_hint(BlockDriverState *bs);
+int bdrv_is_removable(BlockDriverState *bs);
+int bdrv_is_read_only(BlockDriverState *bs);
+int bdrv_set_read_only(BlockDriverState *bs, int read_only);
+int bdrv_is_sg(BlockDriverState *bs);
+int bdrv_enable_write_cache(BlockDriverState *bs);
+int bdrv_is_inserted(BlockDriverState *bs);
+int bdrv_media_changed(BlockDriverState *bs);
+int bdrv_is_locked(BlockDriverState *bs);
+void bdrv_set_locked(BlockDriverState *bs, int locked);
+int bdrv_eject(BlockDriverState *bs, int eject_flag);
+void bdrv_set_change_cb(BlockDriverState *bs,
+                        void (*change_cb)(void *opaque), void *opaque);
+void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size);
+BlockDriverState *bdrv_find(const char *name);
+void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
+                  void *opaque);
+int bdrv_is_encrypted(BlockDriverState *bs);
+int bdrv_key_required(BlockDriverState *bs);
+int bdrv_set_key(BlockDriverState *bs, const char *key);
+int bdrv_query_missing_keys(void);
+void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
+                         void *opaque);
+const char *bdrv_get_device_name(BlockDriverState *bs);
+int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
+                          const uint8_t *buf, int nb_sectors);
+int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi);
+
+const char *bdrv_get_encrypted_filename(BlockDriverState *bs);
+void bdrv_get_backing_filename(BlockDriverState *bs,
+                               char *filename, int filename_size);
+int bdrv_snapshot_create(BlockDriverState *bs,
+                         QEMUSnapshotInfo *sn_info);
+int bdrv_snapshot_goto(BlockDriverState *bs,
+                       const char *snapshot_id);
+int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id);
+int bdrv_snapshot_list(BlockDriverState *bs,
+                       QEMUSnapshotInfo **psn_info);
+char *bdrv_snapshot_dump(char *buf, int buf_size, QEMUSnapshotInfo *sn);
+
+char *get_human_readable_size(char *buf, int buf_size, int64_t size);
+int path_is_absolute(const char *path);
+void path_combine(char *dest, int dest_size,
+                  const char *base_path,
+                  const char *filename);
+
+int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf,
+                      int64_t pos, int size);
+
+int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
+                      int64_t pos, int size);
+
+#define BDRV_SECTORS_PER_DIRTY_CHUNK 2048
+
+void bdrv_set_dirty_tracking(BlockDriverState *bs, int enable);
+int bdrv_get_dirty(BlockDriverState *bs, int64_t sector);
+void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector,
+                      int nr_sectors);
+#endif

block/Makefile.objs

@@ -1,48 +0,0 @@
-block-obj-y += raw-format.o qcow.o vdi.o vmdk.o cloop.o bochs.o vpc.o vvfat.o dmg.o
-block-obj-y += qcow2.o qcow2-refcount.o qcow2-cluster.o qcow2-snapshot.o qcow2-cache.o
-block-obj-y += qed.o qed-gencb.o qed-l2-cache.o qed-table.o qed-cluster.o
-block-obj-y += qed-check.o
-block-obj-y += vhdx.o vhdx-endian.o vhdx-log.o
-block-obj-y += quorum.o
-block-obj-y += parallels.o blkdebug.o blkverify.o blkreplay.o
-block-obj-y += block-backend.o snapshot.o qapi.o
-block-obj-$(CONFIG_WIN32) += file-win32.o win32-aio.o
-block-obj-$(CONFIG_POSIX) += file-posix.o
-block-obj-$(CONFIG_LINUX_AIO) += linux-aio.o
-block-obj-y += null.o mirror.o commit.o io.o
-block-obj-y += throttle-groups.o
-
-block-obj-y += nbd.o nbd-client.o sheepdog.o
-block-obj-$(CONFIG_LIBISCSI) += iscsi.o
-block-obj-$(if $(CONFIG_LIBISCSI),y,n) += iscsi-opts.o
-block-obj-$(CONFIG_LIBNFS) += nfs.o
-block-obj-$(CONFIG_CURL) += curl.o
-block-obj-$(CONFIG_RBD) += rbd.o
-block-obj-$(CONFIG_GLUSTERFS) += gluster.o
-block-obj-$(CONFIG_VXHS) += vxhs.o
-block-obj-$(CONFIG_LIBSSH2) += ssh.o
-block-obj-y += accounting.o dirty-bitmap.o
-block-obj-y += write-threshold.o
-block-obj-y += backup.o
-block-obj-$(CONFIG_REPLICATION) += replication.o
-
-block-obj-y += crypto.o
-
-common-obj-y += stream.o
-
-nfs.o-libs         := $(LIBNFS_LIBS)
-iscsi.o-cflags     := $(LIBISCSI_CFLAGS)
-iscsi.o-libs       := $(LIBISCSI_LIBS)
-curl.o-cflags      := $(CURL_CFLAGS)
-curl.o-libs        := $(CURL_LIBS)
-rbd.o-cflags       := $(RBD_CFLAGS)
-rbd.o-libs         := $(RBD_LIBS)
-gluster.o-cflags   := $(GLUSTERFS_CFLAGS)
-gluster.o-libs     := $(GLUSTERFS_LIBS)
-vxhs.o-libs        := $(VXHS_LIBS)
-ssh.o-cflags       := $(LIBSSH2_CFLAGS)
-ssh.o-libs         := $(LIBSSH2_LIBS)
-block-obj-$(if $(CONFIG_BZIP2),m,n) += dmg-bz2.o
-dmg-bz2.o-libs     := $(BZIP2_LIBS)
-qcow.o-libs        := -lz
-linux-aio.o-libs   := -laio

block/accounting.c

@@ -1,173 +0,0 @@
-/*
- * QEMU System Emulator block accounting
- *
- * Copyright (c) 2011 Christoph Hellwig
- * Copyright (c) 2015 Igalia, S.L.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "qemu/osdep.h"
-#include "block/accounting.h"
-#include "block/block_int.h"
-#include "qemu/timer.h"
-#include "sysemu/qtest.h"
-
-static QEMUClockType clock_type = QEMU_CLOCK_REALTIME;
-static const int qtest_latency_ns = NANOSECONDS_PER_SECOND / 1000;
-
-void block_acct_init(BlockAcctStats *stats, bool account_invalid,
-                     bool account_failed)
-{
-    stats->account_invalid = account_invalid;
-    stats->account_failed = account_failed;
-
-    if (qtest_enabled()) {
-        clock_type = QEMU_CLOCK_VIRTUAL;
-    }
-}
-
-void block_acct_cleanup(BlockAcctStats *stats)
-{
-    BlockAcctTimedStats *s, *next;
-    QSLIST_FOREACH_SAFE(s, &stats->intervals, entries, next) {
-        g_free(s);
-    }
-}
-
-void block_acct_add_interval(BlockAcctStats *stats, unsigned interval_length)
-{
-    BlockAcctTimedStats *s;
-    unsigned i;
-
-    s = g_new0(BlockAcctTimedStats, 1);
-    s->interval_length = interval_length;
-    QSLIST_INSERT_HEAD(&stats->intervals, s, entries);
-
-    for (i = 0; i < BLOCK_MAX_IOTYPE; i++) {
-        timed_average_init(&s->latency[i], clock_type,
-                           (uint64_t) interval_length * NANOSECONDS_PER_SECOND);
-    }
-}
-
-BlockAcctTimedStats *block_acct_interval_next(BlockAcctStats *stats,
-                                              BlockAcctTimedStats *s)
-{
-    if (s == NULL) {
-        return QSLIST_FIRST(&stats->intervals);
-    } else {
-        return QSLIST_NEXT(s, entries);
-    }
-}
-
-void block_acct_start(BlockAcctStats *stats, BlockAcctCookie *cookie,
-                      int64_t bytes, enum BlockAcctType type)
-{
-    assert(type < BLOCK_MAX_IOTYPE);
-
-    cookie->bytes = bytes;
-    cookie->start_time_ns = qemu_clock_get_ns(clock_type);
-    cookie->type = type;
-}
-
-void block_acct_done(BlockAcctStats *stats, BlockAcctCookie *cookie)
-{
-    BlockAcctTimedStats *s;
-    int64_t time_ns = qemu_clock_get_ns(clock_type);
-    int64_t latency_ns = time_ns - cookie->start_time_ns;
-
-    if (qtest_enabled()) {
-        latency_ns = qtest_latency_ns;
-    }
-
-    assert(cookie->type < BLOCK_MAX_IOTYPE);
-
-    stats->nr_bytes[cookie->type] += cookie->bytes;
-    stats->nr_ops[cookie->type]++;
-    stats->total_time_ns[cookie->type] += latency_ns;
-    stats->last_access_time_ns = time_ns;
-
-    QSLIST_FOREACH(s, &stats->intervals, entries) {
-        timed_average_account(&s->latency[cookie->type], latency_ns);
-    }
-}
-
-void block_acct_failed(BlockAcctStats *stats, BlockAcctCookie *cookie)
-{
-    assert(cookie->type < BLOCK_MAX_IOTYPE);
-
-    stats->failed_ops[cookie->type]++;
-
-    if (stats->account_failed) {
-        BlockAcctTimedStats *s;
-        int64_t time_ns = qemu_clock_get_ns(clock_type);
-        int64_t latency_ns = time_ns - cookie->start_time_ns;
-
-        if (qtest_enabled()) {
-            latency_ns = qtest_latency_ns;
-        }
-
-        stats->total_time_ns[cookie->type] += latency_ns;
-        stats->last_access_time_ns = time_ns;
-
-        QSLIST_FOREACH(s, &stats->intervals, entries) {
-            timed_average_account(&s->latency[cookie->type], latency_ns);
-        }
-    }
-}
-
-void block_acct_invalid(BlockAcctStats *stats, enum BlockAcctType type)
-{
-    assert(type < BLOCK_MAX_IOTYPE);
-
-    /* block_acct_done() and block_acct_failed() update
-     * total_time_ns[], but this one does not. The reason is that
-     * invalid requests are accounted during their submission,
-     * therefore there's no actual I/O involved. */
-
-    stats->invalid_ops[type]++;
-
-    if (stats->account_invalid) {
-        stats->last_access_time_ns = qemu_clock_get_ns(clock_type);
-    }
-}
-
-void block_acct_merge_done(BlockAcctStats *stats, enum BlockAcctType type,
-                      int num_requests)
-{
-    assert(type < BLOCK_MAX_IOTYPE);
-    stats->merged[type] += num_requests;
-}
-
-int64_t block_acct_idle_time_ns(BlockAcctStats *stats)
-{
-    return qemu_clock_get_ns(clock_type) - stats->last_access_time_ns;
-}
-
-double block_acct_queue_depth(BlockAcctTimedStats *stats,
-                              enum BlockAcctType type)
-{
-    uint64_t sum, elapsed;
-
-    assert(type < BLOCK_MAX_IOTYPE);
-
-    sum = timed_average_sum(&stats->latency[type], &elapsed);
-
-    return (double) sum / elapsed;
-}

block/backup.c

@@ -1,699 +0,0 @@
-/*
- * QEMU backup
- *
- * Copyright (C) 2013 Proxmox Server Solutions
- *
- * Authors:
- *  Dietmar Maurer (dietmar@proxmox.com)
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-
-#include "trace.h"
-#include "block/block.h"
-#include "block/block_int.h"
-#include "block/blockjob_int.h"
-#include "block/block_backup.h"
-#include "qapi/error.h"
-#include "qapi/qmp/qerror.h"
-#include "qemu/ratelimit.h"
-#include "qemu/cutils.h"
-#include "sysemu/block-backend.h"
-#include "qemu/bitmap.h"
-#include "qemu/error-report.h"
-
-#define BACKUP_CLUSTER_SIZE_DEFAULT (1 << 16)
-#define SLICE_TIME 100000000ULL /* ns */
-
-typedef struct BackupBlockJob {
-    BlockJob common;
-    BlockBackend *target;
-    /* bitmap for sync=incremental */
-    BdrvDirtyBitmap *sync_bitmap;
-    MirrorSyncMode sync_mode;
-    RateLimit limit;
-    BlockdevOnError on_source_error;
-    BlockdevOnError on_target_error;
-    CoRwlock flush_rwlock;
-    uint64_t sectors_read;
-    unsigned long *done_bitmap;
-    int64_t cluster_size;
-    bool compress;
-    NotifierWithReturn before_write;
-    QLIST_HEAD(, CowRequest) inflight_reqs;
-} BackupBlockJob;
-
-/* Size of a cluster in sectors, instead of bytes. */
-static inline int64_t cluster_size_sectors(BackupBlockJob *job)
-{
-  return job->cluster_size / BDRV_SECTOR_SIZE;
-}
-
-/* See if in-flight requests overlap and wait for them to complete */
-static void coroutine_fn wait_for_overlapping_requests(BackupBlockJob *job,
-                                                       int64_t start,
-                                                       int64_t end)
-{
-    CowRequest *req;
-    bool retry;
-
-    do {
-        retry = false;
-        QLIST_FOREACH(req, &job->inflight_reqs, list) {
-            if (end > req->start && start < req->end) {
-                qemu_co_queue_wait(&req->wait_queue, NULL);
-                retry = true;
-                break;
-            }
-        }
-    } while (retry);
-}
-
-/* Keep track of an in-flight request */
-static void cow_request_begin(CowRequest *req, BackupBlockJob *job,
-                                     int64_t start, int64_t end)
-{
-    req->start = start;
-    req->end = end;
-    qemu_co_queue_init(&req->wait_queue);
-    QLIST_INSERT_HEAD(&job->inflight_reqs, req, list);
-}
-
-/* Forget about a completed request */
-static void cow_request_end(CowRequest *req)
-{
-    QLIST_REMOVE(req, list);
-    qemu_co_queue_restart_all(&req->wait_queue);
-}
-
-static int coroutine_fn backup_do_cow(BackupBlockJob *job,
-                                      int64_t sector_num, int nb_sectors,
-                                      bool *error_is_read,
-                                      bool is_write_notifier)
-{
-    BlockBackend *blk = job->common.blk;
-    CowRequest cow_request;
-    struct iovec iov;
-    QEMUIOVector bounce_qiov;
-    void *bounce_buffer = NULL;
-    int ret = 0;
-    int64_t sectors_per_cluster = cluster_size_sectors(job);
-    int64_t start, end;
-    int n;
-
-    qemu_co_rwlock_rdlock(&job->flush_rwlock);
-
-    start = sector_num / sectors_per_cluster;
-    end = DIV_ROUND_UP(sector_num + nb_sectors, sectors_per_cluster);
-
-    trace_backup_do_cow_enter(job, start, sector_num, nb_sectors);
-
-    wait_for_overlapping_requests(job, start, end);
-    cow_request_begin(&cow_request, job, start, end);
-
-    for (; start < end; start++) {
-        if (test_bit(start, job->done_bitmap)) {
-            trace_backup_do_cow_skip(job, start);
-            continue; /* already copied */
-        }
-
-        trace_backup_do_cow_process(job, start);
-
-        n = MIN(sectors_per_cluster,
-                job->common.len / BDRV_SECTOR_SIZE -
-                start * sectors_per_cluster);
-
-        if (!bounce_buffer) {
-            bounce_buffer = blk_blockalign(blk, job->cluster_size);
-        }
-        iov.iov_base = bounce_buffer;
-        iov.iov_len = n * BDRV_SECTOR_SIZE;
-        qemu_iovec_init_external(&bounce_qiov, &iov, 1);
-
-        ret = blk_co_preadv(blk, start * job->cluster_size,
-                            bounce_qiov.size, &bounce_qiov,
-                            is_write_notifier ? BDRV_REQ_NO_SERIALISING : 0);
-        if (ret < 0) {
-            trace_backup_do_cow_read_fail(job, start, ret);
-            if (error_is_read) {
-                *error_is_read = true;
-            }
-            goto out;
-        }
-
-        if (buffer_is_zero(iov.iov_base, iov.iov_len)) {
-            ret = blk_co_pwrite_zeroes(job->target, start * job->cluster_size,
-                                       bounce_qiov.size, BDRV_REQ_MAY_UNMAP);
-        } else {
-            ret = blk_co_pwritev(job->target, start * job->cluster_size,
-                                 bounce_qiov.size, &bounce_qiov,
-                                 job->compress ? BDRV_REQ_WRITE_COMPRESSED : 0);
-        }
-        if (ret < 0) {
-            trace_backup_do_cow_write_fail(job, start, ret);
-            if (error_is_read) {
-                *error_is_read = false;
-            }
-            goto out;
-        }
-
-        set_bit(start, job->done_bitmap);
-
-        /* Publish progress, guest I/O counts as progress too.  Note that the
-         * offset field is an opaque progress value, it is not a disk offset.
-         */
-        job->sectors_read += n;
-        job->common.offset += n * BDRV_SECTOR_SIZE;
-    }
-
-out:
-    if (bounce_buffer) {
-        qemu_vfree(bounce_buffer);
-    }
-
-    cow_request_end(&cow_request);
-
-    trace_backup_do_cow_return(job, sector_num, nb_sectors, ret);
-
-    qemu_co_rwlock_unlock(&job->flush_rwlock);
-
-    return ret;
-}
-
-static int coroutine_fn backup_before_write_notify(
-        NotifierWithReturn *notifier,
-        void *opaque)
-{
-    BackupBlockJob *job = container_of(notifier, BackupBlockJob, before_write);
-    BdrvTrackedRequest *req = opaque;
-    int64_t sector_num = req->offset >> BDRV_SECTOR_BITS;
-    int nb_sectors = req->bytes >> BDRV_SECTOR_BITS;
-
-    assert(req->bs == blk_bs(job->common.blk));
-    assert((req->offset & (BDRV_SECTOR_SIZE - 1)) == 0);
-    assert((req->bytes & (BDRV_SECTOR_SIZE - 1)) == 0);
-
-    return backup_do_cow(job, sector_num, nb_sectors, NULL, true);
-}
-
-static void backup_set_speed(BlockJob *job, int64_t speed, Error **errp)
-{
-    BackupBlockJob *s = container_of(job, BackupBlockJob, common);
-
-    if (speed < 0) {
-        error_setg(errp, QERR_INVALID_PARAMETER, "speed");
-        return;
-    }
-    ratelimit_set_speed(&s->limit, speed / BDRV_SECTOR_SIZE, SLICE_TIME);
-}
-
-static void backup_cleanup_sync_bitmap(BackupBlockJob *job, int ret)
-{
-    BdrvDirtyBitmap *bm;
-    BlockDriverState *bs = blk_bs(job->common.blk);
-
-    if (ret < 0 || block_job_is_cancelled(&job->common)) {
-        /* Merge the successor back into the parent, delete nothing. */
-        bm = bdrv_reclaim_dirty_bitmap(bs, job->sync_bitmap, NULL);
-        assert(bm);
-    } else {
-        /* Everything is fine, delete this bitmap and install the backup. */
-        bm = bdrv_dirty_bitmap_abdicate(bs, job->sync_bitmap, NULL);
-        assert(bm);
-    }
-}
-
-static void backup_commit(BlockJob *job)
-{
-    BackupBlockJob *s = container_of(job, BackupBlockJob, common);
-    if (s->sync_bitmap) {
-        backup_cleanup_sync_bitmap(s, 0);
-    }
-}
-
-static void backup_abort(BlockJob *job)
-{
-    BackupBlockJob *s = container_of(job, BackupBlockJob, common);
-    if (s->sync_bitmap) {
-        backup_cleanup_sync_bitmap(s, -1);
-    }
-}
-
-static void backup_clean(BlockJob *job)
-{
-    BackupBlockJob *s = container_of(job, BackupBlockJob, common);
-    assert(s->target);
-    blk_unref(s->target);
-    s->target = NULL;
-}
-
-static void backup_attached_aio_context(BlockJob *job, AioContext *aio_context)
-{
-    BackupBlockJob *s = container_of(job, BackupBlockJob, common);
-
-    blk_set_aio_context(s->target, aio_context);
-}
-
-void backup_do_checkpoint(BlockJob *job, Error **errp)
-{
-    BackupBlockJob *backup_job = container_of(job, BackupBlockJob, common);
-    int64_t len;
-
-    assert(job->driver->job_type == BLOCK_JOB_TYPE_BACKUP);
-
-    if (backup_job->sync_mode != MIRROR_SYNC_MODE_NONE) {
-        error_setg(errp, "The backup job only supports block checkpoint in"
-                   " sync=none mode");
-        return;
-    }
-
-    len = DIV_ROUND_UP(backup_job->common.len, backup_job->cluster_size);
-    bitmap_zero(backup_job->done_bitmap, len);
-}
-
-void backup_wait_for_overlapping_requests(BlockJob *job, int64_t sector_num,
-                                          int nb_sectors)
-{
-    BackupBlockJob *backup_job = container_of(job, BackupBlockJob, common);
-    int64_t sectors_per_cluster = cluster_size_sectors(backup_job);
-    int64_t start, end;
-
-    assert(job->driver->job_type == BLOCK_JOB_TYPE_BACKUP);
-
-    start = sector_num / sectors_per_cluster;
-    end = DIV_ROUND_UP(sector_num + nb_sectors, sectors_per_cluster);
-    wait_for_overlapping_requests(backup_job, start, end);
-}
-
-void backup_cow_request_begin(CowRequest *req, BlockJob *job,
-                              int64_t sector_num,
-                              int nb_sectors)
-{
-    BackupBlockJob *backup_job = container_of(job, BackupBlockJob, common);
-    int64_t sectors_per_cluster = cluster_size_sectors(backup_job);
-    int64_t start, end;
-
-    assert(job->driver->job_type == BLOCK_JOB_TYPE_BACKUP);
-
-    start = sector_num / sectors_per_cluster;
-    end = DIV_ROUND_UP(sector_num + nb_sectors, sectors_per_cluster);
-    cow_request_begin(req, backup_job, start, end);
-}
-
-void backup_cow_request_end(CowRequest *req)
-{
-    cow_request_end(req);
-}
-
-static void backup_drain(BlockJob *job)
-{
-    BackupBlockJob *s = container_of(job, BackupBlockJob, common);
-
-    /* Need to keep a reference in case blk_drain triggers execution
-     * of backup_complete...
-     */
-    if (s->target) {
-        BlockBackend *target = s->target;
-        blk_ref(target);
-        blk_drain(target);
-        blk_unref(target);
-    }
-}
-
-static BlockErrorAction backup_error_action(BackupBlockJob *job,
-                                            bool read, int error)
-{
-    if (read) {
-        return block_job_error_action(&job->common, job->on_source_error,
-                                      true, error);
-    } else {
-        return block_job_error_action(&job->common, job->on_target_error,
-                                      false, error);
-    }
-}
-
-typedef struct {
-    int ret;
-} BackupCompleteData;
-
-static void backup_complete(BlockJob *job, void *opaque)
-{
-    BackupCompleteData *data = opaque;
-
-    block_job_completed(job, data->ret);
-    g_free(data);
-}
-
-static bool coroutine_fn yield_and_check(BackupBlockJob *job)
-{
-    if (block_job_is_cancelled(&job->common)) {
-        return true;
-    }
-
-    /* we need to yield so that bdrv_drain_all() returns.
-     * (without, VM does not reboot)
-     */
-    if (job->common.speed) {
-        uint64_t delay_ns = ratelimit_calculate_delay(&job->limit,
-                                                      job->sectors_read);
-        job->sectors_read = 0;
-        block_job_sleep_ns(&job->common, QEMU_CLOCK_REALTIME, delay_ns);
-    } else {
-        block_job_sleep_ns(&job->common, QEMU_CLOCK_REALTIME, 0);
-    }
-
-    if (block_job_is_cancelled(&job->common)) {
-        return true;
-    }
-
-    return false;
-}
-
-static int coroutine_fn backup_run_incremental(BackupBlockJob *job)
-{
-    bool error_is_read;
-    int ret = 0;
-    int clusters_per_iter;
-    uint32_t granularity;
-    int64_t sector;
-    int64_t cluster;
-    int64_t end;
-    int64_t last_cluster = -1;
-    int64_t sectors_per_cluster = cluster_size_sectors(job);
-    BdrvDirtyBitmapIter *dbi;
-
-    granularity = bdrv_dirty_bitmap_granularity(job->sync_bitmap);
-    clusters_per_iter = MAX((granularity / job->cluster_size), 1);
-    dbi = bdrv_dirty_iter_new(job->sync_bitmap, 0);
-
-    /* Find the next dirty sector(s) */
-    while ((sector = bdrv_dirty_iter_next(dbi)) != -1) {
-        cluster = sector / sectors_per_cluster;
-
-        /* Fake progress updates for any clusters we skipped */
-        if (cluster != last_cluster + 1) {
-            job->common.offset += ((cluster - last_cluster - 1) *
-                                   job->cluster_size);
-        }
-
-        for (end = cluster + clusters_per_iter; cluster < end; cluster++) {
-            do {
-                if (yield_and_check(job)) {
-                    goto out;
-                }
-                ret = backup_do_cow(job, cluster * sectors_per_cluster,
-                                    sectors_per_cluster, &error_is_read,
-                                    false);
-                if ((ret < 0) &&
-                    backup_error_action(job, error_is_read, -ret) ==
-                    BLOCK_ERROR_ACTION_REPORT) {
-                    goto out;
-                }
-            } while (ret < 0);
-        }
-
-        /* If the bitmap granularity is smaller than the backup granularity,
-         * we need to advance the iterator pointer to the next cluster. */
-        if (granularity < job->cluster_size) {
-            bdrv_set_dirty_iter(dbi, cluster * sectors_per_cluster);
-        }
-
-        last_cluster = cluster - 1;
-    }
-
-    /* Play some final catchup with the progress meter */
-    end = DIV_ROUND_UP(job->common.len, job->cluster_size);
-    if (last_cluster + 1 < end) {
-        job->common.offset += ((end - last_cluster - 1) * job->cluster_size);
-    }
-
-out:
-    bdrv_dirty_iter_free(dbi);
-    return ret;
-}
-
-static void coroutine_fn backup_run(void *opaque)
-{
-    BackupBlockJob *job = opaque;
-    BackupCompleteData *data;
-    BlockDriverState *bs = blk_bs(job->common.blk);
-    int64_t start, end;
-    int64_t sectors_per_cluster = cluster_size_sectors(job);
-    int ret = 0;
-
-    QLIST_INIT(&job->inflight_reqs);
-    qemu_co_rwlock_init(&job->flush_rwlock);
-
-    start = 0;
-    end = DIV_ROUND_UP(job->common.len, job->cluster_size);
-
-    job->done_bitmap = bitmap_new(end);
-
-    job->before_write.notify = backup_before_write_notify;
-    bdrv_add_before_write_notifier(bs, &job->before_write);
-
-    if (job->sync_mode == MIRROR_SYNC_MODE_NONE) {
-        while (!block_job_is_cancelled(&job->common)) {
-            /* Yield until the job is cancelled.  We just let our before_write
-             * notify callback service CoW requests. */
-            block_job_yield(&job->common);
-        }
-    } else if (job->sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {
-        ret = backup_run_incremental(job);
-    } else {
-        /* Both FULL and TOP SYNC_MODE's require copying.. */
-        for (; start < end; start++) {
-            bool error_is_read;
-            int alloced = 0;
-
-            if (yield_and_check(job)) {
-                break;
-            }
-
-            if (job->sync_mode == MIRROR_SYNC_MODE_TOP) {
-                int i, n;
-
-                /* Check to see if these blocks are already in the
-                 * backing file. */
-
-                for (i = 0; i < sectors_per_cluster;) {
-                    /* bdrv_is_allocated() only returns true/false based
-                     * on the first set of sectors it comes across that
-                     * are are all in the same state.
-                     * For that reason we must verify each sector in the
-                     * backup cluster length.  We end up copying more than
-                     * needed but at some point that is always the case. */
-                    alloced =
-                        bdrv_is_allocated(bs,
-                                start * sectors_per_cluster + i,
-                                sectors_per_cluster - i, &n);
-                    i += n;
-
-                    if (alloced || n == 0) {
-                        break;
-                    }
-                }
-
-                /* If the above loop never found any sectors that are in
-                 * the topmost image, skip this backup. */
-                if (alloced == 0) {
-                    continue;
-                }
-            }
-            /* FULL sync mode we copy the whole drive. */
-            if (alloced < 0) {
-                ret = alloced;
-            } else {
-                ret = backup_do_cow(job, start * sectors_per_cluster,
-                                    sectors_per_cluster, &error_is_read,
-                                    false);
-            }
-            if (ret < 0) {
-                /* Depending on error action, fail now or retry cluster */
-                BlockErrorAction action =
-                    backup_error_action(job, error_is_read, -ret);
-                if (action == BLOCK_ERROR_ACTION_REPORT) {
-                    break;
-                } else {
-                    start--;
-                    continue;
-                }
-            }
-        }
-    }
-
-    notifier_with_return_remove(&job->before_write);
-
-    /* wait until pending backup_do_cow() calls have completed */
-    qemu_co_rwlock_wrlock(&job->flush_rwlock);
-    qemu_co_rwlock_unlock(&job->flush_rwlock);
-    g_free(job->done_bitmap);
-
-    data = g_malloc(sizeof(*data));
-    data->ret = ret;
-    block_job_defer_to_main_loop(&job->common, backup_complete, data);
-}
-
-static const BlockJobDriver backup_job_driver = {
-    .instance_size          = sizeof(BackupBlockJob),
-    .job_type               = BLOCK_JOB_TYPE_BACKUP,
-    .start                  = backup_run,
-    .set_speed              = backup_set_speed,
-    .commit                 = backup_commit,
-    .abort                  = backup_abort,
-    .clean                  = backup_clean,
-    .attached_aio_context   = backup_attached_aio_context,
-    .drain                  = backup_drain,
-};
-
-BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
-                  BlockDriverState *target, int64_t speed,
-                  MirrorSyncMode sync_mode, BdrvDirtyBitmap *sync_bitmap,
-                  bool compress,
-                  BlockdevOnError on_source_error,
-                  BlockdevOnError on_target_error,
-                  int creation_flags,
-                  BlockCompletionFunc *cb, void *opaque,
-                  BlockJobTxn *txn, Error **errp)
-{
-    int64_t len;
-    BlockDriverInfo bdi;
-    BackupBlockJob *job = NULL;
-    int ret;
-
-    assert(bs);
-    assert(target);
-
-    if (bs == target) {
-        error_setg(errp, "Source and target cannot be the same");
-        return NULL;
-    }
-
-    if (!bdrv_is_inserted(bs)) {
-        error_setg(errp, "Device is not inserted: %s",
-                   bdrv_get_device_name(bs));
-        return NULL;
-    }
-
-    if (!bdrv_is_inserted(target)) {
-        error_setg(errp, "Device is not inserted: %s",
-                   bdrv_get_device_name(target));
-        return NULL;
-    }
-
-    if (compress && target->drv->bdrv_co_pwritev_compressed == NULL) {
-        error_setg(errp, "Compression is not supported for this drive %s",
-                   bdrv_get_device_name(target));
-        return NULL;
-    }
-
-    if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKUP_SOURCE, errp)) {
-        return NULL;
-    }
-
-    if (bdrv_op_is_blocked(target, BLOCK_OP_TYPE_BACKUP_TARGET, errp)) {
-        return NULL;
-    }
-
-    if (sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {
-        if (!sync_bitmap) {
-            error_setg(errp, "must provide a valid bitmap name for "
-                             "\"incremental\" sync mode");
-            return NULL;
-        }
-
-        /* Create a new bitmap, and freeze/disable this one. */
-        if (bdrv_dirty_bitmap_create_successor(bs, sync_bitmap, errp) < 0) {
-            return NULL;
-        }
-    } else if (sync_bitmap) {
-        error_setg(errp,
-                   "a sync_bitmap was provided to backup_run, "
-                   "but received an incompatible sync_mode (%s)",
-                   MirrorSyncMode_lookup[sync_mode]);
-        return NULL;
-    }
-
-    len = bdrv_getlength(bs);
-    if (len < 0) {
-        error_setg_errno(errp, -len, "unable to get length for '%s'",
-                         bdrv_get_device_name(bs));
-        goto error;
-    }
-
-    /* job->common.len is fixed, so we can't allow resize */
-    job = block_job_create(job_id, &backup_job_driver, bs,
-                           BLK_PERM_CONSISTENT_READ,
-                           BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE |
-                           BLK_PERM_WRITE_UNCHANGED | BLK_PERM_GRAPH_MOD,
-                           speed, creation_flags, cb, opaque, errp);
-    if (!job) {
-        goto error;
-    }
-
-    /* The target must match the source in size, so no resize here either */
-    job->target = blk_new(BLK_PERM_WRITE,
-                          BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE |
-                          BLK_PERM_WRITE_UNCHANGED | BLK_PERM_GRAPH_MOD);
-    ret = blk_insert_bs(job->target, target, errp);
-    if (ret < 0) {
-        goto error;
-    }
-
-    job->on_source_error = on_source_error;
-    job->on_target_error = on_target_error;
-    job->sync_mode = sync_mode;
-    job->sync_bitmap = sync_mode == MIRROR_SYNC_MODE_INCREMENTAL ?
-                       sync_bitmap : NULL;
-    job->compress = compress;
-
-    /* If there is no backing file on the target, we cannot rely on COW if our
-     * backup cluster size is smaller than the target cluster size. Even for
-     * targets with a backing file, try to avoid COW if possible. */
-    ret = bdrv_get_info(target, &bdi);
-    if (ret == -ENOTSUP && !target->backing) {
-        /* Cluster size is not defined */
-        error_report("WARNING: The target block device doesn't provide "
-                     "information about the block size and it doesn't have a "
-                     "backing file. The default block size of %u bytes is "
-                     "used. If the actual block size of the target exceeds "
-                     "this default, the backup may be unusable",
-                     BACKUP_CLUSTER_SIZE_DEFAULT);
-        job->cluster_size = BACKUP_CLUSTER_SIZE_DEFAULT;
-    } else if (ret < 0 && !target->backing) {
-        error_setg_errno(errp, -ret,
-            "Couldn't determine the cluster size of the target image, "
-            "which has no backing file");
-        error_append_hint(errp,
-            "Aborting, since this may create an unusable destination image\n");
-        goto error;
-    } else if (ret < 0 && target->backing) {
-        /* Not fatal; just trudge on ahead. */
-        job->cluster_size = BACKUP_CLUSTER_SIZE_DEFAULT;
-    } else {
-        job->cluster_size = MAX(BACKUP_CLUSTER_SIZE_DEFAULT, bdi.cluster_size);
-    }
-
-    /* Required permissions are already taken with target's blk_new() */
-    block_job_add_bdrv(&job->common, "target", target, 0, BLK_PERM_ALL,
-                       &error_abort);
-    job->common.len = len;
-    block_job_txn_add_job(txn, &job->common);
-
-    return &job->common;
-
- error:
-    if (sync_bitmap) {
-        bdrv_reclaim_dirty_bitmap(bs, sync_bitmap, NULL);
-    }
-    if (job) {
-        backup_clean(&job->common);
-        block_job_early_fail(&job->common);
-    }
-
-    return NULL;
-}

block/blkdebug.c

@@ -1,929 +0,0 @@
-/*
- * Block protocol for I/O error injection
- *
- * Copyright (C) 2016-2017 Red Hat, Inc.
- * Copyright (c) 2010 Kevin Wolf <kwolf@redhat.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu/cutils.h"
-#include "qemu/config-file.h"
-#include "block/block_int.h"
-#include "qemu/module.h"
-#include "qapi/qmp/qbool.h"
-#include "qapi/qmp/qdict.h"
-#include "qapi/qmp/qint.h"
-#include "qapi/qmp/qstring.h"
-#include "sysemu/qtest.h"
-
-typedef struct BDRVBlkdebugState {
-    int state;
-    int new_state;
-    uint64_t align;
-    uint64_t max_transfer;
-    uint64_t opt_write_zero;
-    uint64_t max_write_zero;
-    uint64_t opt_discard;
-    uint64_t max_discard;
-
-    /* For blkdebug_refresh_filename() */
-    char *config_file;
-
-    QLIST_HEAD(, BlkdebugRule) rules[BLKDBG__MAX];
-    QSIMPLEQ_HEAD(, BlkdebugRule) active_rules;
-    QLIST_HEAD(, BlkdebugSuspendedReq) suspended_reqs;
-} BDRVBlkdebugState;
-
-typedef struct BlkdebugAIOCB {
-    BlockAIOCB common;
-    int ret;
-} BlkdebugAIOCB;
-
-typedef struct BlkdebugSuspendedReq {
-    Coroutine *co;
-    char *tag;
-    QLIST_ENTRY(BlkdebugSuspendedReq) next;
-} BlkdebugSuspendedReq;
-
-enum {
-    ACTION_INJECT_ERROR,
-    ACTION_SET_STATE,
-    ACTION_SUSPEND,
-};
-
-typedef struct BlkdebugRule {
-    BlkdebugEvent event;
-    int action;
-    int state;
-    union {
-        struct {
-            int error;
-            int immediately;
-            int once;
-            int64_t offset;
-        } inject;
-        struct {
-            int new_state;
-        } set_state;
-        struct {
-            char *tag;
-        } suspend;
-    } options;
-    QLIST_ENTRY(BlkdebugRule) next;
-    QSIMPLEQ_ENTRY(BlkdebugRule) active_next;
-} BlkdebugRule;
-
-static QemuOptsList inject_error_opts = {
-    .name = "inject-error",
-    .head = QTAILQ_HEAD_INITIALIZER(inject_error_opts.head),
-    .desc = {
-        {
-            .name = "event",
-            .type = QEMU_OPT_STRING,
-        },
-        {
-            .name = "state",
-            .type = QEMU_OPT_NUMBER,
-        },
-        {
-            .name = "errno",
-            .type = QEMU_OPT_NUMBER,
-        },
-        {
-            .name = "sector",
-            .type = QEMU_OPT_NUMBER,
-        },
-        {
-            .name = "once",
-            .type = QEMU_OPT_BOOL,
-        },
-        {
-            .name = "immediately",
-            .type = QEMU_OPT_BOOL,
-        },
-        { /* end of list */ }
-    },
-};
-
-static QemuOptsList set_state_opts = {
-    .name = "set-state",
-    .head = QTAILQ_HEAD_INITIALIZER(set_state_opts.head),
-    .desc = {
-        {
-            .name = "event",
-            .type = QEMU_OPT_STRING,
-        },
-        {
-            .name = "state",
-            .type = QEMU_OPT_NUMBER,
-        },
-        {
-            .name = "new_state",
-            .type = QEMU_OPT_NUMBER,
-        },
-        { /* end of list */ }
-    },
-};
-
-static QemuOptsList *config_groups[] = {
-    &inject_error_opts,
-    &set_state_opts,
-    NULL
-};
-
-static int get_event_by_name(const char *name, BlkdebugEvent *event)
-{
-    int i;
-
-    for (i = 0; i < BLKDBG__MAX; i++) {
-        if (!strcmp(BlkdebugEvent_lookup[i], name)) {
-            *event = i;
-            return 0;
-        }
-    }
-
-    return -1;
-}
-
-struct add_rule_data {
-    BDRVBlkdebugState *s;
-    int action;
-};
-
-static int add_rule(void *opaque, QemuOpts *opts, Error **errp)
-{
-    struct add_rule_data *d = opaque;
-    BDRVBlkdebugState *s = d->s;
-    const char* event_name;
-    BlkdebugEvent event;
-    struct BlkdebugRule *rule;
-    int64_t sector;
-
-    /* Find the right event for the rule */
-    event_name = qemu_opt_get(opts, "event");
-    if (!event_name) {
-        error_setg(errp, "Missing event name for rule");
-        return -1;
-    } else if (get_event_by_name(event_name, &event) < 0) {
-        error_setg(errp, "Invalid event name \"%s\"", event_name);
-        return -1;
-    }
-
-    /* Set attributes common for all actions */
-    rule = g_malloc0(sizeof(*rule));
-    *rule = (struct BlkdebugRule) {
-        .event  = event,
-        .action = d->action,
-        .state  = qemu_opt_get_number(opts, "state", 0),
-    };
-
-    /* Parse action-specific options */
-    switch (d->action) {
-    case ACTION_INJECT_ERROR:
-        rule->options.inject.error = qemu_opt_get_number(opts, "errno", EIO);
-        rule->options.inject.once  = qemu_opt_get_bool(opts, "once", 0);
-        rule->options.inject.immediately =
-            qemu_opt_get_bool(opts, "immediately", 0);
-        sector = qemu_opt_get_number(opts, "sector", -1);
-        rule->options.inject.offset =
-            sector == -1 ? -1 : sector * BDRV_SECTOR_SIZE;
-        break;
-
-    case ACTION_SET_STATE:
-        rule->options.set_state.new_state =
-            qemu_opt_get_number(opts, "new_state", 0);
-        break;
-
-    case ACTION_SUSPEND:
-        rule->options.suspend.tag =
-            g_strdup(qemu_opt_get(opts, "tag"));
-        break;
-    };
-
-    /* Add the rule */
-    QLIST_INSERT_HEAD(&s->rules[event], rule, next);
-
-    return 0;
-}
-
-static void remove_rule(BlkdebugRule *rule)
-{
-    switch (rule->action) {
-    case ACTION_INJECT_ERROR:
-    case ACTION_SET_STATE:
-        break;
-    case ACTION_SUSPEND:
-        g_free(rule->options.suspend.tag);
-        break;
-    }
-
-    QLIST_REMOVE(rule, next);
-    g_free(rule);
-}
-
-static int read_config(BDRVBlkdebugState *s, const char *filename,
-                       QDict *options, Error **errp)
-{
-    FILE *f = NULL;
-    int ret;
-    struct add_rule_data d;
-    Error *local_err = NULL;
-
-    if (filename) {
-        f = fopen(filename, "r");
-        if (f == NULL) {
-            error_setg_errno(errp, errno, "Could not read blkdebug config file");
-            return -errno;
-        }
-
-        ret = qemu_config_parse(f, config_groups, filename);
-        if (ret < 0) {
-            error_setg(errp, "Could not parse blkdebug config file");
-            ret = -EINVAL;
-            goto fail;
-        }
-    }
-
-    qemu_config_parse_qdict(options, config_groups, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        ret = -EINVAL;
-        goto fail;
-    }
-
-    d.s = s;
-    d.action = ACTION_INJECT_ERROR;
-    qemu_opts_foreach(&inject_error_opts, add_rule, &d, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        ret = -EINVAL;
-        goto fail;
-    }
-
-    d.action = ACTION_SET_STATE;
-    qemu_opts_foreach(&set_state_opts, add_rule, &d, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        ret = -EINVAL;
-        goto fail;
-    }
-
-    ret = 0;
-fail:
-    qemu_opts_reset(&inject_error_opts);
-    qemu_opts_reset(&set_state_opts);
-    if (f) {
-        fclose(f);
-    }
-    return ret;
-}
-
-/* Valid blkdebug filenames look like blkdebug:path/to/config:path/to/image */
-static void blkdebug_parse_filename(const char *filename, QDict *options,
-                                    Error **errp)
-{
-    const char *c;
-
-    /* Parse the blkdebug: prefix */
-    if (!strstart(filename, "blkdebug:", &filename)) {
-        /* There was no prefix; therefore, all options have to be already
-           present in the QDict (except for the filename) */
-        qdict_put_str(options, "x-image", filename);
-        return;
-    }
-
-    /* Parse config file path */
-    c = strchr(filename, ':');
-    if (c == NULL) {
-        error_setg(errp, "blkdebug requires both config file and image path");
-        return;
-    }
-
-    if (c != filename) {
-        QString *config_path;
-        config_path = qstring_from_substr(filename, 0, c - filename - 1);
-        qdict_put(options, "config", config_path);
-    }
-
-    /* TODO Allow multi-level nesting and set file.filename here */
-    filename = c + 1;
-    qdict_put_str(options, "x-image", filename);
-}
-
-static QemuOptsList runtime_opts = {
-    .name = "blkdebug",
-    .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head),
-    .desc = {
-        {
-            .name = "config",
-            .type = QEMU_OPT_STRING,
-            .help = "Path to the configuration file",
-        },
-        {
-            .name = "x-image",
-            .type = QEMU_OPT_STRING,
-            .help = "[internal use only, will be removed]",
-        },
-        {
-            .name = "align",
-            .type = QEMU_OPT_SIZE,
-            .help = "Required alignment in bytes",
-        },
-        {
-            .name = "max-transfer",
-            .type = QEMU_OPT_SIZE,
-            .help = "Maximum transfer size in bytes",
-        },
-        {
-            .name = "opt-write-zero",
-            .type = QEMU_OPT_SIZE,
-            .help = "Optimum write zero alignment in bytes",
-        },
-        {
-            .name = "max-write-zero",
-            .type = QEMU_OPT_SIZE,
-            .help = "Maximum write zero size in bytes",
-        },
-        {
-            .name = "opt-discard",
-            .type = QEMU_OPT_SIZE,
-            .help = "Optimum discard alignment in bytes",
-        },
-        {
-            .name = "max-discard",
-            .type = QEMU_OPT_SIZE,
-            .help = "Maximum discard size in bytes",
-        },
-        { /* end of list */ }
-    },
-};
-
-static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,
-                         Error **errp)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-    QemuOpts *opts;
-    Error *local_err = NULL;
-    int ret;
-    uint64_t align;
-
-    opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
-    qemu_opts_absorb_qdict(opts, options, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        ret = -EINVAL;
-        goto out;
-    }
-
-    /* Read rules from config file or command line options */
-    s->config_file = g_strdup(qemu_opt_get(opts, "config"));
-    ret = read_config(s, s->config_file, options, errp);
-    if (ret) {
-        goto out;
-    }
-
-    /* Set initial state */
-    s->state = 1;
-
-    /* Open the image file */
-    bs->file = bdrv_open_child(qemu_opt_get(opts, "x-image"), options, "image",
-                               bs, &child_file, false, &local_err);
-    if (local_err) {
-        ret = -EINVAL;
-        error_propagate(errp, local_err);
-        goto out;
-    }
-
-    bs->supported_write_flags = BDRV_REQ_FUA &
-        bs->file->bs->supported_write_flags;
-    bs->supported_zero_flags = (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP) &
-        bs->file->bs->supported_zero_flags;
-    ret = -EINVAL;
-
-    /* Set alignment overrides */
-    s->align = qemu_opt_get_size(opts, "align", 0);
-    if (s->align && (s->align >= INT_MAX || !is_power_of_2(s->align))) {
-        error_setg(errp, "Cannot meet constraints with align %" PRIu64,
-                   s->align);
-        goto out;
-    }
-    align = MAX(s->align, bs->file->bs->bl.request_alignment);
-
-    s->max_transfer = qemu_opt_get_size(opts, "max-transfer", 0);
-    if (s->max_transfer &&
-        (s->max_transfer >= INT_MAX ||
-         !QEMU_IS_ALIGNED(s->max_transfer, align))) {
-        error_setg(errp, "Cannot meet constraints with max-transfer %" PRIu64,
-                   s->max_transfer);
-        goto out;
-    }
-
-    s->opt_write_zero = qemu_opt_get_size(opts, "opt-write-zero", 0);
-    if (s->opt_write_zero &&
-        (s->opt_write_zero >= INT_MAX ||
-         !QEMU_IS_ALIGNED(s->opt_write_zero, align))) {
-        error_setg(errp, "Cannot meet constraints with opt-write-zero %" PRIu64,
-                   s->opt_write_zero);
-        goto out;
-    }
-
-    s->max_write_zero = qemu_opt_get_size(opts, "max-write-zero", 0);
-    if (s->max_write_zero &&
-        (s->max_write_zero >= INT_MAX ||
-         !QEMU_IS_ALIGNED(s->max_write_zero,
-                          MAX(s->opt_write_zero, align)))) {
-        error_setg(errp, "Cannot meet constraints with max-write-zero %" PRIu64,
-                   s->max_write_zero);
-        goto out;
-    }
-
-    s->opt_discard = qemu_opt_get_size(opts, "opt-discard", 0);
-    if (s->opt_discard &&
-        (s->opt_discard >= INT_MAX ||
-         !QEMU_IS_ALIGNED(s->opt_discard, align))) {
-        error_setg(errp, "Cannot meet constraints with opt-discard %" PRIu64,
-                   s->opt_discard);
-        goto out;
-    }
-
-    s->max_discard = qemu_opt_get_size(opts, "max-discard", 0);
-    if (s->max_discard &&
-        (s->max_discard >= INT_MAX ||
-         !QEMU_IS_ALIGNED(s->max_discard,
-                          MAX(s->opt_discard, align)))) {
-        error_setg(errp, "Cannot meet constraints with max-discard %" PRIu64,
-                   s->max_discard);
-        goto out;
-    }
-
-    ret = 0;
-out:
-    if (ret < 0) {
-        g_free(s->config_file);
-    }
-    qemu_opts_del(opts);
-    return ret;
-}
-
-static int rule_check(BlockDriverState *bs, uint64_t offset, uint64_t bytes)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-    BlkdebugRule *rule = NULL;
-    int error;
-    bool immediately;
-
-    QSIMPLEQ_FOREACH(rule, &s->active_rules, active_next) {
-        uint64_t inject_offset = rule->options.inject.offset;
-
-        if (inject_offset == -1 ||
-            (bytes && inject_offset >= offset &&
-             inject_offset < offset + bytes))
-        {
-            break;
-        }
-    }
-
-    if (!rule || !rule->options.inject.error) {
-        return 0;
-    }
-
-    immediately = rule->options.inject.immediately;
-    error = rule->options.inject.error;
-
-    if (rule->options.inject.once) {
-        QSIMPLEQ_REMOVE(&s->active_rules, rule, BlkdebugRule, active_next);
-        remove_rule(rule);
-    }
-
-    if (!immediately) {
-        aio_co_schedule(qemu_get_current_aio_context(), qemu_coroutine_self());
-        qemu_coroutine_yield();
-    }
-
-    return -error;
-}
-
-static int coroutine_fn
-blkdebug_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
-                   QEMUIOVector *qiov, int flags)
-{
-    int err;
-
-    /* Sanity check block layer guarantees */
-    assert(QEMU_IS_ALIGNED(offset, bs->bl.request_alignment));
-    assert(QEMU_IS_ALIGNED(bytes, bs->bl.request_alignment));
-    if (bs->bl.max_transfer) {
-        assert(bytes <= bs->bl.max_transfer);
-    }
-
-    err = rule_check(bs, offset, bytes);
-    if (err) {
-        return err;
-    }
-
-    return bdrv_co_preadv(bs->file, offset, bytes, qiov, flags);
-}
-
-static int coroutine_fn
-blkdebug_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
-                    QEMUIOVector *qiov, int flags)
-{
-    int err;
-
-    /* Sanity check block layer guarantees */
-    assert(QEMU_IS_ALIGNED(offset, bs->bl.request_alignment));
-    assert(QEMU_IS_ALIGNED(bytes, bs->bl.request_alignment));
-    if (bs->bl.max_transfer) {
-        assert(bytes <= bs->bl.max_transfer);
-    }
-
-    err = rule_check(bs, offset, bytes);
-    if (err) {
-        return err;
-    }
-
-    return bdrv_co_pwritev(bs->file, offset, bytes, qiov, flags);
-}
-
-static int blkdebug_co_flush(BlockDriverState *bs)
-{
-    int err = rule_check(bs, 0, 0);
-
-    if (err) {
-        return err;
-    }
-
-    return bdrv_co_flush(bs->file->bs);
-}
-
-static int coroutine_fn blkdebug_co_pwrite_zeroes(BlockDriverState *bs,
-                                                  int64_t offset, int count,
-                                                  BdrvRequestFlags flags)
-{
-    uint32_t align = MAX(bs->bl.request_alignment,
-                         bs->bl.pwrite_zeroes_alignment);
-    int err;
-
-    /* Only pass through requests that are larger than requested
-     * preferred alignment (so that we test the fallback to writes on
-     * unaligned portions), and check that the block layer never hands
-     * us anything unaligned that crosses an alignment boundary.  */
-    if (count < align) {
-        assert(QEMU_IS_ALIGNED(offset, align) ||
-               QEMU_IS_ALIGNED(offset + count, align) ||
-               DIV_ROUND_UP(offset, align) ==
-               DIV_ROUND_UP(offset + count, align));
-        return -ENOTSUP;
-    }
-    assert(QEMU_IS_ALIGNED(offset, align));
-    assert(QEMU_IS_ALIGNED(count, align));
-    if (bs->bl.max_pwrite_zeroes) {
-        assert(count <= bs->bl.max_pwrite_zeroes);
-    }
-
-    err = rule_check(bs, offset, count);
-    if (err) {
-        return err;
-    }
-
-    return bdrv_co_pwrite_zeroes(bs->file, offset, count, flags);
-}
-
-static int coroutine_fn blkdebug_co_pdiscard(BlockDriverState *bs,
-                                             int64_t offset, int count)
-{
-    uint32_t align = bs->bl.pdiscard_alignment;
-    int err;
-
-    /* Only pass through requests that are larger than requested
-     * minimum alignment, and ensure that unaligned requests do not
-     * cross optimum discard boundaries. */
-    if (count < bs->bl.request_alignment) {
-        assert(QEMU_IS_ALIGNED(offset, align) ||
-               QEMU_IS_ALIGNED(offset + count, align) ||
-               DIV_ROUND_UP(offset, align) ==
-               DIV_ROUND_UP(offset + count, align));
-        return -ENOTSUP;
-    }
-    assert(QEMU_IS_ALIGNED(offset, bs->bl.request_alignment));
-    assert(QEMU_IS_ALIGNED(count, bs->bl.request_alignment));
-    if (align && count >= align) {
-        assert(QEMU_IS_ALIGNED(offset, align));
-        assert(QEMU_IS_ALIGNED(count, align));
-    }
-    if (bs->bl.max_pdiscard) {
-        assert(count <= bs->bl.max_pdiscard);
-    }
-
-    err = rule_check(bs, offset, count);
-    if (err) {
-        return err;
-    }
-
-    return bdrv_co_pdiscard(bs->file->bs, offset, count);
-}
-
-static void blkdebug_close(BlockDriverState *bs)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-    BlkdebugRule *rule, *next;
-    int i;
-
-    for (i = 0; i < BLKDBG__MAX; i++) {
-        QLIST_FOREACH_SAFE(rule, &s->rules[i], next, next) {
-            remove_rule(rule);
-        }
-    }
-
-    g_free(s->config_file);
-}
-
-static void suspend_request(BlockDriverState *bs, BlkdebugRule *rule)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-    BlkdebugSuspendedReq r;
-
-    r = (BlkdebugSuspendedReq) {
-        .co         = qemu_coroutine_self(),
-        .tag        = g_strdup(rule->options.suspend.tag),
-    };
-
-    remove_rule(rule);
-    QLIST_INSERT_HEAD(&s->suspended_reqs, &r, next);
-
-    if (!qtest_enabled()) {
-        printf("blkdebug: Suspended request '%s'\n", r.tag);
-    }
-    qemu_coroutine_yield();
-    if (!qtest_enabled()) {
-        printf("blkdebug: Resuming request '%s'\n", r.tag);
-    }
-
-    QLIST_REMOVE(&r, next);
-    g_free(r.tag);
-}
-
-static bool process_rule(BlockDriverState *bs, struct BlkdebugRule *rule,
-    bool injected)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-
-    /* Only process rules for the current state */
-    if (rule->state && rule->state != s->state) {
-        return injected;
-    }
-
-    /* Take the action */
-    switch (rule->action) {
-    case ACTION_INJECT_ERROR:
-        if (!injected) {
-            QSIMPLEQ_INIT(&s->active_rules);
-            injected = true;
-        }
-        QSIMPLEQ_INSERT_HEAD(&s->active_rules, rule, active_next);
-        break;
-
-    case ACTION_SET_STATE:
-        s->new_state = rule->options.set_state.new_state;
-        break;
-
-    case ACTION_SUSPEND:
-        suspend_request(bs, rule);
-        break;
-    }
-    return injected;
-}
-
-static void blkdebug_debug_event(BlockDriverState *bs, BlkdebugEvent event)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-    struct BlkdebugRule *rule, *next;
-    bool injected;
-
-    assert((int)event >= 0 && event < BLKDBG__MAX);
-
-    injected = false;
-    s->new_state = s->state;
-    QLIST_FOREACH_SAFE(rule, &s->rules[event], next, next) {
-        injected = process_rule(bs, rule, injected);
-    }
-    s->state = s->new_state;
-}
-
-static int blkdebug_debug_breakpoint(BlockDriverState *bs, const char *event,
-                                     const char *tag)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-    struct BlkdebugRule *rule;
-    BlkdebugEvent blkdebug_event;
-
-    if (get_event_by_name(event, &blkdebug_event) < 0) {
-        return -ENOENT;
-    }
-
-
-    rule = g_malloc(sizeof(*rule));
-    *rule = (struct BlkdebugRule) {
-        .event  = blkdebug_event,
-        .action = ACTION_SUSPEND,
-        .state  = 0,
-        .options.suspend.tag = g_strdup(tag),
-    };
-
-    QLIST_INSERT_HEAD(&s->rules[blkdebug_event], rule, next);
-
-    return 0;
-}
-
-static int blkdebug_debug_resume(BlockDriverState *bs, const char *tag)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-    BlkdebugSuspendedReq *r, *next;
-
-    QLIST_FOREACH_SAFE(r, &s->suspended_reqs, next, next) {
-        if (!strcmp(r->tag, tag)) {
-            qemu_coroutine_enter(r->co);
-            return 0;
-        }
-    }
-    return -ENOENT;
-}
-
-static int blkdebug_debug_remove_breakpoint(BlockDriverState *bs,
-                                            const char *tag)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-    BlkdebugSuspendedReq *r, *r_next;
-    BlkdebugRule *rule, *next;
-    int i, ret = -ENOENT;
-
-    for (i = 0; i < BLKDBG__MAX; i++) {
-        QLIST_FOREACH_SAFE(rule, &s->rules[i], next, next) {
-            if (rule->action == ACTION_SUSPEND &&
-                !strcmp(rule->options.suspend.tag, tag)) {
-                remove_rule(rule);
-                ret = 0;
-            }
-        }
-    }
-    QLIST_FOREACH_SAFE(r, &s->suspended_reqs, next, r_next) {
-        if (!strcmp(r->tag, tag)) {
-            qemu_coroutine_enter(r->co);
-            ret = 0;
-        }
-    }
-    return ret;
-}
-
-static bool blkdebug_debug_is_suspended(BlockDriverState *bs, const char *tag)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-    BlkdebugSuspendedReq *r;
-
-    QLIST_FOREACH(r, &s->suspended_reqs, next) {
-        if (!strcmp(r->tag, tag)) {
-            return true;
-        }
-    }
-    return false;
-}
-
-static int64_t blkdebug_getlength(BlockDriverState *bs)
-{
-    return bdrv_getlength(bs->file->bs);
-}
-
-static int blkdebug_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
-{
-    return bdrv_truncate(bs->file, offset, errp);
-}
-
-static void blkdebug_refresh_filename(BlockDriverState *bs, QDict *options)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-    QDict *opts;
-    const QDictEntry *e;
-    bool force_json = false;
-
-    for (e = qdict_first(options); e; e = qdict_next(options, e)) {
-        if (strcmp(qdict_entry_key(e), "config") &&
-            strcmp(qdict_entry_key(e), "x-image"))
-        {
-            force_json = true;
-            break;
-        }
-    }
-
-    if (force_json && !bs->file->bs->full_open_options) {
-        /* The config file cannot be recreated, so creating a plain filename
-         * is impossible */
-        return;
-    }
-
-    if (!force_json && bs->file->bs->exact_filename[0]) {
-        snprintf(bs->exact_filename, sizeof(bs->exact_filename),
-                 "blkdebug:%s:%s", s->config_file ?: "",
-                 bs->file->bs->exact_filename);
-    }
-
-    opts = qdict_new();
-    qdict_put_str(opts, "driver", "blkdebug");
-
-    QINCREF(bs->file->bs->full_open_options);
-    qdict_put(opts, "image", bs->file->bs->full_open_options);
-
-    for (e = qdict_first(options); e; e = qdict_next(options, e)) {
-        if (strcmp(qdict_entry_key(e), "x-image")) {
-            qobject_incref(qdict_entry_value(e));
-            qdict_put_obj(opts, qdict_entry_key(e), qdict_entry_value(e));
-        }
-    }
-
-    bs->full_open_options = opts;
-}
-
-static void blkdebug_refresh_limits(BlockDriverState *bs, Error **errp)
-{
-    BDRVBlkdebugState *s = bs->opaque;
-
-    if (s->align) {
-        bs->bl.request_alignment = s->align;
-    }
-    if (s->max_transfer) {
-        bs->bl.max_transfer = s->max_transfer;
-    }
-    if (s->opt_write_zero) {
-        bs->bl.pwrite_zeroes_alignment = s->opt_write_zero;
-    }
-    if (s->max_write_zero) {
-        bs->bl.max_pwrite_zeroes = s->max_write_zero;
-    }
-    if (s->opt_discard) {
-        bs->bl.pdiscard_alignment = s->opt_discard;
-    }
-    if (s->max_discard) {
-        bs->bl.max_pdiscard = s->max_discard;
-    }
-}
-
-static int blkdebug_reopen_prepare(BDRVReopenState *reopen_state,
-                                   BlockReopenQueue *queue, Error **errp)
-{
-    return 0;
-}
-
-static BlockDriver bdrv_blkdebug = {
-    .format_name            = "blkdebug",
-    .protocol_name          = "blkdebug",
-    .instance_size          = sizeof(BDRVBlkdebugState),
-
-    .bdrv_parse_filename    = blkdebug_parse_filename,
-    .bdrv_file_open         = blkdebug_open,
-    .bdrv_close             = blkdebug_close,
-    .bdrv_reopen_prepare    = blkdebug_reopen_prepare,
-    .bdrv_child_perm        = bdrv_filter_default_perms,
-
-    .bdrv_getlength         = blkdebug_getlength,
-    .bdrv_truncate          = blkdebug_truncate,
-    .bdrv_refresh_filename  = blkdebug_refresh_filename,
-    .bdrv_refresh_limits    = blkdebug_refresh_limits,
-
-    .bdrv_co_preadv         = blkdebug_co_preadv,
-    .bdrv_co_pwritev        = blkdebug_co_pwritev,
-    .bdrv_co_flush_to_disk  = blkdebug_co_flush,
-    .bdrv_co_pwrite_zeroes  = blkdebug_co_pwrite_zeroes,
-    .bdrv_co_pdiscard       = blkdebug_co_pdiscard,
-
-    .bdrv_debug_event           = blkdebug_debug_event,
-    .bdrv_debug_breakpoint      = blkdebug_debug_breakpoint,
-    .bdrv_debug_remove_breakpoint
-                                = blkdebug_debug_remove_breakpoint,
-    .bdrv_debug_resume          = blkdebug_debug_resume,
-    .bdrv_debug_is_suspended    = blkdebug_debug_is_suspended,
-};
-
-static void bdrv_blkdebug_init(void)
-{
-    bdrv_register(&bdrv_blkdebug);
-}
-
-block_init(bdrv_blkdebug_init);

block/blkreplay.c

@@ -1,153 +0,0 @@
-/*
- * Block protocol for record/replay
- *
- * Copyright (c) 2010-2016 Institute for System Programming
- *                         of the Russian Academy of Sciences.
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "block/block_int.h"
-#include "sysemu/replay.h"
-#include "qapi/error.h"
-
-typedef struct Request {
-    Coroutine *co;
-    QEMUBH *bh;
-} Request;
-
-static int blkreplay_open(BlockDriverState *bs, QDict *options, int flags,
-                          Error **errp)
-{
-    Error *local_err = NULL;
-    int ret;
-
-    /* Open the image file */
-    bs->file = bdrv_open_child(NULL, options, "image",
-                               bs, &child_file, false, &local_err);
-    if (local_err) {
-        ret = -EINVAL;
-        error_propagate(errp, local_err);
-        goto fail;
-    }
-
-    ret = 0;
-fail:
-    return ret;
-}
-
-static void blkreplay_close(BlockDriverState *bs)
-{
-}
-
-static int64_t blkreplay_getlength(BlockDriverState *bs)
-{
-    return bdrv_getlength(bs->file->bs);
-}
-
-/* This bh is used for synchronization of return from coroutines.
-   It continues yielded coroutine which then finishes its execution.
-   BH is called adjusted to some replay checkpoint, therefore
-   record and replay will always finish coroutines deterministically.
-*/
-static void blkreplay_bh_cb(void *opaque)
-{
-    Request *req = opaque;
-    aio_co_wake(req->co);
-    qemu_bh_delete(req->bh);
-    g_free(req);
-}
-
-static void block_request_create(uint64_t reqid, BlockDriverState *bs,
-                                 Coroutine *co)
-{
-    Request *req = g_new(Request, 1);
-    *req = (Request) {
-        .co = co,
-        .bh = aio_bh_new(bdrv_get_aio_context(bs), blkreplay_bh_cb, req),
-    };
-    replay_block_event(req->bh, reqid);
-}
-
-static int coroutine_fn blkreplay_co_preadv(BlockDriverState *bs,
-    uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags)
-{
-    uint64_t reqid = blkreplay_next_id();
-    int ret = bdrv_co_preadv(bs->file, offset, bytes, qiov, flags);
-    block_request_create(reqid, bs, qemu_coroutine_self());
-    qemu_coroutine_yield();
-
-    return ret;
-}
-
-static int coroutine_fn blkreplay_co_pwritev(BlockDriverState *bs,
-    uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags)
-{
-    uint64_t reqid = blkreplay_next_id();
-    int ret = bdrv_co_pwritev(bs->file, offset, bytes, qiov, flags);
-    block_request_create(reqid, bs, qemu_coroutine_self());
-    qemu_coroutine_yield();
-
-    return ret;
-}
-
-static int coroutine_fn blkreplay_co_pwrite_zeroes(BlockDriverState *bs,
-    int64_t offset, int count, BdrvRequestFlags flags)
-{
-    uint64_t reqid = blkreplay_next_id();
-    int ret = bdrv_co_pwrite_zeroes(bs->file, offset, count, flags);
-    block_request_create(reqid, bs, qemu_coroutine_self());
-    qemu_coroutine_yield();
-
-    return ret;
-}
-
-static int coroutine_fn blkreplay_co_pdiscard(BlockDriverState *bs,
-                                              int64_t offset, int count)
-{
-    uint64_t reqid = blkreplay_next_id();
-    int ret = bdrv_co_pdiscard(bs->file->bs, offset, count);
-    block_request_create(reqid, bs, qemu_coroutine_self());
-    qemu_coroutine_yield();
-
-    return ret;
-}
-
-static int coroutine_fn blkreplay_co_flush(BlockDriverState *bs)
-{
-    uint64_t reqid = blkreplay_next_id();
-    int ret = bdrv_co_flush(bs->file->bs);
-    block_request_create(reqid, bs, qemu_coroutine_self());
-    qemu_coroutine_yield();
-
-    return ret;
-}
-
-static BlockDriver bdrv_blkreplay = {
-    .format_name            = "blkreplay",
-    .protocol_name          = "blkreplay",
-    .instance_size          = 0,
-
-    .bdrv_file_open         = blkreplay_open,
-    .bdrv_close             = blkreplay_close,
-    .bdrv_child_perm        = bdrv_filter_default_perms,
-    .bdrv_getlength         = blkreplay_getlength,
-
-    .bdrv_co_preadv         = blkreplay_co_preadv,
-    .bdrv_co_pwritev        = blkreplay_co_pwritev,
-
-    .bdrv_co_pwrite_zeroes  = blkreplay_co_pwrite_zeroes,
-    .bdrv_co_pdiscard       = blkreplay_co_pdiscard,
-    .bdrv_co_flush          = blkreplay_co_flush,
-};
-
-static void bdrv_blkreplay_init(void)
-{
-    bdrv_register(&bdrv_blkreplay);
-}
-
-block_init(bdrv_blkreplay_init);

block/blkverify.c

@@ -1,336 +0,0 @@
-/*
- * Block protocol for block driver correctness testing
- *
- * Copyright (C) 2010 IBM, Corp.
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu/sockets.h" /* for EINPROGRESS on Windows */
-#include "block/block_int.h"
-#include "qapi/qmp/qdict.h"
-#include "qapi/qmp/qstring.h"
-#include "qemu/cutils.h"
-
-typedef struct {
-    BdrvChild *test_file;
-} BDRVBlkverifyState;
-
-typedef struct BlkverifyRequest {
-    Coroutine *co;
-    BlockDriverState *bs;
-
-    /* Request metadata */
-    bool is_write;
-    uint64_t offset;
-    uint64_t bytes;
-    int flags;
-
-    int (*request_fn)(BdrvChild *, int64_t, unsigned int, QEMUIOVector *,
-                      BdrvRequestFlags);
-
-    int ret;                    /* test image result */
-    int raw_ret;                /* raw image result */
-
-    unsigned int done;          /* completion counter */
-
-    QEMUIOVector *qiov;         /* user I/O vector */
-    QEMUIOVector *raw_qiov;     /* cloned I/O vector for raw file */
-} BlkverifyRequest;
-
-static void GCC_FMT_ATTR(2, 3) blkverify_err(BlkverifyRequest *r,
-                                             const char *fmt, ...)
-{
-    va_list ap;
-
-    va_start(ap, fmt);
-    fprintf(stderr, "blkverify: %s offset=%" PRId64 " bytes=%" PRId64 " ",
-            r->is_write ? "write" : "read", r->offset, r->bytes);
-    vfprintf(stderr, fmt, ap);
-    fprintf(stderr, "\n");
-    va_end(ap);
-    exit(1);
-}
-
-/* Valid blkverify filenames look like blkverify:path/to/raw_image:path/to/image */
-static void blkverify_parse_filename(const char *filename, QDict *options,
-                                     Error **errp)
-{
-    const char *c;
-    QString *raw_path;
-
-
-    /* Parse the blkverify: prefix */
-    if (!strstart(filename, "blkverify:", &filename)) {
-        /* There was no prefix; therefore, all options have to be already
-           present in the QDict (except for the filename) */
-        qdict_put_str(options, "x-image", filename);
-        return;
-    }
-
-    /* Parse the raw image filename */
-    c = strchr(filename, ':');
-    if (c == NULL) {
-        error_setg(errp, "blkverify requires raw copy and original image path");
-        return;
-    }
-
-    /* TODO Implement option pass-through and set raw.filename here */
-    raw_path = qstring_from_substr(filename, 0, c - filename - 1);
-    qdict_put(options, "x-raw", raw_path);
-
-    /* TODO Allow multi-level nesting and set file.filename here */
-    filename = c + 1;
-    qdict_put_str(options, "x-image", filename);
-}
-
-static QemuOptsList runtime_opts = {
-    .name = "blkverify",
-    .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head),
-    .desc = {
-        {
-            .name = "x-raw",
-            .type = QEMU_OPT_STRING,
-            .help = "[internal use only, will be removed]",
-        },
-        {
-            .name = "x-image",
-            .type = QEMU_OPT_STRING,
-            .help = "[internal use only, will be removed]",
-        },
-        { /* end of list */ }
-    },
-};
-
-static int blkverify_open(BlockDriverState *bs, QDict *options, int flags,
-                          Error **errp)
-{
-    BDRVBlkverifyState *s = bs->opaque;
-    QemuOpts *opts;
-    Error *local_err = NULL;
-    int ret;
-
-    opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
-    qemu_opts_absorb_qdict(opts, options, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        ret = -EINVAL;
-        goto fail;
-    }
-
-    /* Open the raw file */
-    bs->file = bdrv_open_child(qemu_opt_get(opts, "x-raw"), options, "raw",
-                               bs, &child_file, false, &local_err);
-    if (local_err) {
-        ret = -EINVAL;
-        error_propagate(errp, local_err);
-        goto fail;
-    }
-
-    /* Open the test file */
-    s->test_file = bdrv_open_child(qemu_opt_get(opts, "x-image"), options,
-                                   "test", bs, &child_format, false,
-                                   &local_err);
-    if (local_err) {
-        ret = -EINVAL;
-        error_propagate(errp, local_err);
-        goto fail;
-    }
-
-    ret = 0;
-fail:
-    qemu_opts_del(opts);
-    return ret;
-}
-
-static void blkverify_close(BlockDriverState *bs)
-{
-    BDRVBlkverifyState *s = bs->opaque;
-
-    bdrv_unref_child(bs, s->test_file);
-    s->test_file = NULL;
-}
-
-static int64_t blkverify_getlength(BlockDriverState *bs)
-{
-    BDRVBlkverifyState *s = bs->opaque;
-
-    return bdrv_getlength(s->test_file->bs);
-}
-
-static void coroutine_fn blkverify_do_test_req(void *opaque)
-{
-    BlkverifyRequest *r = opaque;
-    BDRVBlkverifyState *s = r->bs->opaque;
-
-    r->ret = r->request_fn(s->test_file, r->offset, r->bytes, r->qiov,
-                           r->flags);
-    r->done++;
-    qemu_coroutine_enter_if_inactive(r->co);
-}
-
-static void coroutine_fn blkverify_do_raw_req(void *opaque)
-{
-    BlkverifyRequest *r = opaque;
-
-    r->raw_ret = r->request_fn(r->bs->file, r->offset, r->bytes, r->raw_qiov,
-                               r->flags);
-    r->done++;
-    qemu_coroutine_enter_if_inactive(r->co);
-}
-
-static int coroutine_fn
-blkverify_co_prwv(BlockDriverState *bs, BlkverifyRequest *r, uint64_t offset,
-                  uint64_t bytes, QEMUIOVector *qiov, QEMUIOVector *raw_qiov,
-                  int flags, bool is_write)
-{
-    Coroutine *co_a, *co_b;
-
-    *r = (BlkverifyRequest) {
-        .co         = qemu_coroutine_self(),
-        .bs         = bs,
-        .offset     = offset,
-        .bytes      = bytes,
-        .qiov       = qiov,
-        .raw_qiov   = raw_qiov,
-        .flags      = flags,
-        .is_write   = is_write,
-        .request_fn = is_write ? bdrv_co_pwritev : bdrv_co_preadv,
-    };
-
-    co_a = qemu_coroutine_create(blkverify_do_test_req, r);
-    co_b = qemu_coroutine_create(blkverify_do_raw_req, r);
-
-    qemu_coroutine_enter(co_a);
-    qemu_coroutine_enter(co_b);
-
-    while (r->done < 2) {
-        qemu_coroutine_yield();
-    }
-
-    if (r->ret != r->raw_ret) {
-        blkverify_err(r, "return value mismatch %d != %d", r->ret, r->raw_ret);
-    }
-
-    return r->ret;
-}
-
-static int coroutine_fn
-blkverify_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
-                    QEMUIOVector *qiov, int flags)
-{
-    BlkverifyRequest r;
-    QEMUIOVector raw_qiov;
-    void *buf;
-    ssize_t cmp_offset;
-    int ret;
-
-    buf = qemu_blockalign(bs->file->bs, qiov->size);
-    qemu_iovec_init(&raw_qiov, qiov->niov);
-    qemu_iovec_clone(&raw_qiov, qiov, buf);
-
-    ret = blkverify_co_prwv(bs, &r, offset, bytes, qiov, &raw_qiov, flags,
-                            false);
-
-    cmp_offset = qemu_iovec_compare(qiov, &raw_qiov);
-    if (cmp_offset != -1) {
-        blkverify_err(&r, "contents mismatch at offset %" PRId64,
-                      offset + cmp_offset);
-    }
-
-    qemu_iovec_destroy(&raw_qiov);
-    qemu_vfree(buf);
-
-    return ret;
-}
-
-static int coroutine_fn
-blkverify_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
-                     QEMUIOVector *qiov, int flags)
-{
-    BlkverifyRequest r;
-    return blkverify_co_prwv(bs, &r, offset, bytes, qiov, qiov, flags, true);
-}
-
-static int blkverify_co_flush(BlockDriverState *bs)
-{
-    BDRVBlkverifyState *s = bs->opaque;
-
-    /* Only flush test file, the raw file is not important */
-    return bdrv_co_flush(s->test_file->bs);
-}
-
-static bool blkverify_recurse_is_first_non_filter(BlockDriverState *bs,
-                                                  BlockDriverState *candidate)
-{
-    BDRVBlkverifyState *s = bs->opaque;
-
-    bool perm = bdrv_recurse_is_first_non_filter(bs->file->bs, candidate);
-
-    if (perm) {
-        return true;
-    }
-
-    return bdrv_recurse_is_first_non_filter(s->test_file->bs, candidate);
-}
-
-static void blkverify_refresh_filename(BlockDriverState *bs, QDict *options)
-{
-    BDRVBlkverifyState *s = bs->opaque;
-
-    /* bs->file->bs has already been refreshed */
-    bdrv_refresh_filename(s->test_file->bs);
-
-    if (bs->file->bs->full_open_options
-        && s->test_file->bs->full_open_options)
-    {
-        QDict *opts = qdict_new();
-        qdict_put_str(opts, "driver", "blkverify");
-
-        QINCREF(bs->file->bs->full_open_options);
-        qdict_put(opts, "raw", bs->file->bs->full_open_options);
-        QINCREF(s->test_file->bs->full_open_options);
-        qdict_put(opts, "test", s->test_file->bs->full_open_options);
-
-        bs->full_open_options = opts;
-    }
-
-    if (bs->file->bs->exact_filename[0]
-        && s->test_file->bs->exact_filename[0])
-    {
-        snprintf(bs->exact_filename, sizeof(bs->exact_filename),
-                 "blkverify:%s:%s",
-                 bs->file->bs->exact_filename,
-                 s->test_file->bs->exact_filename);
-    }
-}
-
-static BlockDriver bdrv_blkverify = {
-    .format_name                      = "blkverify",
-    .protocol_name                    = "blkverify",
-    .instance_size                    = sizeof(BDRVBlkverifyState),
-
-    .bdrv_parse_filename              = blkverify_parse_filename,
-    .bdrv_file_open                   = blkverify_open,
-    .bdrv_close                       = blkverify_close,
-    .bdrv_child_perm                  = bdrv_filter_default_perms,
-    .bdrv_getlength                   = blkverify_getlength,
-    .bdrv_refresh_filename            = blkverify_refresh_filename,
-
-    .bdrv_co_preadv                   = blkverify_co_preadv,
-    .bdrv_co_pwritev                  = blkverify_co_pwritev,
-    .bdrv_co_flush                    = blkverify_co_flush,
-
-    .is_filter                        = true,
-    .bdrv_recurse_is_first_non_filter = blkverify_recurse_is_first_non_filter,
-};
-
-static void bdrv_blkverify_init(void)
-{
-    bdrv_register(&bdrv_blkverify);
-}
-
-block_init(bdrv_blkverify_init);

block/bochs.c

@@ -22,12 +22,9 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "qemu/osdep.h"
-#include "qapi/error.h"
 #include "qemu-common.h"
-#include "block/block_int.h"
-#include "qemu/module.h"
-#include "qemu/bswap.h"
+#include "block_int.h"
+#include "module.h"
 
 /**************************************************************/
 
@@ -42,41 +39,57 @@
 // not allocated: 0xffffffff
 
 // always little-endian
-struct bochs_header {
-    char magic[32];     /* "Bochs Virtual HD Image" */
-    char type[16];      /* "Redolog" */
-    char subtype[16];   /* "Undoable" / "Volatile" / "Growing" */
+struct bochs_header_v1 {
+    char magic[32]; // "Bochs Virtual HD Image"
+    char type[16]; // "Redolog"
+    char subtype[16]; // "Undoable" / "Volatile" / "Growing"
     uint32_t version;
-    uint32_t header;    /* size of header */
-
-    uint32_t catalog;   /* num of entries */
-    uint32_t bitmap;    /* bitmap size */
-    uint32_t extent;    /* extent size */
+    uint32_t header; // size of header
 
     union {
-        struct {
-            uint32_t reserved;  /* for ??? */
-            uint64_t disk;      /* disk size */
-            char padding[HEADER_SIZE - 64 - 20 - 12];
-        } QEMU_PACKED redolog;
-        struct {
-            uint64_t disk;      /* disk size */
-            char padding[HEADER_SIZE - 64 - 20 - 8];
-        } QEMU_PACKED redolog_v1;
-        char padding[HEADER_SIZE - 64 - 20];
+	struct {
+	    uint32_t catalog; // num of entries
+	    uint32_t bitmap; // bitmap size
+	    uint32_t extent; // extent size
+	    uint64_t disk; // disk size
+	    char padding[HEADER_SIZE - 64 - 8 - 20];
+	} redolog;
+	char padding[HEADER_SIZE - 64 - 8];
     } extra;
-} QEMU_PACKED;
+};
+
+// always little-endian
+struct bochs_header {
+    char magic[32]; // "Bochs Virtual HD Image"
+    char type[16]; // "Redolog"
+    char subtype[16]; // "Undoable" / "Volatile" / "Growing"
+    uint32_t version;
+    uint32_t header; // size of header
+
+    union {
+	struct {
+	    uint32_t catalog; // num of entries
+	    uint32_t bitmap; // bitmap size
+	    uint32_t extent; // extent size
+	    uint32_t reserved; // for ???
+	    uint64_t disk; // disk size
+	    char padding[HEADER_SIZE - 64 - 8 - 24];
+	} redolog;
+	char padding[HEADER_SIZE - 64 - 8];
+    } extra;
+};
 
 typedef struct BDRVBochsState {
-    CoMutex lock;
+    int fd;
+
     uint32_t *catalog_bitmap;
-    uint32_t catalog_size;
+    int catalog_size;
 
-    uint32_t data_offset;
+    int data_offset;
 
-    uint32_t bitmap_blocks;
-    uint32_t extent_blocks;
-    uint32_t extent_size;
+    int bitmap_blocks;
+    int extent_blocks;
+    int extent_size;
 } BDRVBochsState;
 
 static int bochs_probe(const uint8_t *buf, int buf_size, const char *filename)
@@ -96,28 +109,26 @@ static int bochs_probe(const uint8_t *buf, int buf_size, const char *filename)
     return 0;
 }
 
-static int bochs_open(BlockDriverState *bs, QDict *options, int flags,
-                      Error **errp)
+static int bochs_open(BlockDriverState *bs, const char *filename, int flags)
 {
     BDRVBochsState *s = bs->opaque;
-    uint32_t i;
+    int fd, i;
     struct bochs_header bochs;
-    int ret;
+    struct bochs_header_v1 header_v1;
 
-    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_file,
-                               false, errp);
-    if (!bs->file) {
-        return -EINVAL;
+    fd = open(filename, O_RDWR | O_BINARY);
+    if (fd < 0) {
+        fd = open(filename, O_RDONLY | O_BINARY);
+        if (fd < 0)
+            return -1;
     }
 
-    ret = bdrv_set_read_only(bs, true, errp); /* no write support yet */
-    if (ret < 0) {
-        return ret;
-    }
+    bs->read_only = 1; // no write support yet
 
-    ret = bdrv_pread(bs->file, 0, &bochs, sizeof(bochs));
-    if (ret < 0) {
-        return ret;
+    s->fd = fd;
+
+    if (read(fd, &bochs, sizeof(bochs)) != sizeof(bochs)) {
+        goto fail;
     }
 
     if (strcmp(bochs.magic, HEADER_MAGIC) ||
@@ -125,170 +136,110 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags,
         strcmp(bochs.subtype, GROWING_TYPE) ||
 	((le32_to_cpu(bochs.version) != HEADER_VERSION) &&
 	(le32_to_cpu(bochs.version) != HEADER_V1))) {
-        error_setg(errp, "Image not in Bochs format");
-        return -EINVAL;
-    }
-
-    if (le32_to_cpu(bochs.version) == HEADER_V1) {
-        bs->total_sectors = le64_to_cpu(bochs.extra.redolog_v1.disk) / 512;
-    } else {
-        bs->total_sectors = le64_to_cpu(bochs.extra.redolog.disk) / 512;
-    }
-
-    /* Limit to 1M entries to avoid unbounded allocation. This is what is
-     * needed for the largest image that bximage can create (~8 TB). */
-    s->catalog_size = le32_to_cpu(bochs.catalog);
-    if (s->catalog_size > 0x100000) {
-        error_setg(errp, "Catalog size is too large");
-        return -EFBIG;
-    }
-
-    s->catalog_bitmap = g_try_new(uint32_t, s->catalog_size);
-    if (s->catalog_size && s->catalog_bitmap == NULL) {
-        error_setg(errp, "Could not allocate memory for catalog");
-        return -ENOMEM;
-    }
-
-    ret = bdrv_pread(bs->file, le32_to_cpu(bochs.header), s->catalog_bitmap,
-                     s->catalog_size * 4);
-    if (ret < 0) {
         goto fail;
     }
 
+    if (le32_to_cpu(bochs.version) == HEADER_V1) {
+      memcpy(&header_v1, &bochs, sizeof(bochs));
+      bs->total_sectors = le64_to_cpu(header_v1.extra.redolog.disk) / 512;
+    } else {
+      bs->total_sectors = le64_to_cpu(bochs.extra.redolog.disk) / 512;
+    }
+
+    lseek(s->fd, le32_to_cpu(bochs.header), SEEK_SET);
+
+    s->catalog_size = le32_to_cpu(bochs.extra.redolog.catalog);
+    s->catalog_bitmap = qemu_malloc(s->catalog_size * 4);
+    if (read(s->fd, s->catalog_bitmap, s->catalog_size * 4) !=
+	s->catalog_size * 4)
+	goto fail;
     for (i = 0; i < s->catalog_size; i++)
 	le32_to_cpus(&s->catalog_bitmap[i]);
 
     s->data_offset = le32_to_cpu(bochs.header) + (s->catalog_size * 4);
 
-    s->bitmap_blocks = 1 + (le32_to_cpu(bochs.bitmap) - 1) / 512;
-    s->extent_blocks = 1 + (le32_to_cpu(bochs.extent) - 1) / 512;
+    s->bitmap_blocks = 1 + (le32_to_cpu(bochs.extra.redolog.bitmap) - 1) / 512;
+    s->extent_blocks = 1 + (le32_to_cpu(bochs.extra.redolog.extent) - 1) / 512;
 
-    s->extent_size = le32_to_cpu(bochs.extent);
-    if (s->extent_size < BDRV_SECTOR_SIZE) {
-        /* bximage actually never creates extents smaller than 4k */
-        error_setg(errp, "Extent size must be at least 512");
-        ret = -EINVAL;
-        goto fail;
-    } else if (!is_power_of_2(s->extent_size)) {
-        error_setg(errp, "Extent size %" PRIu32 " is not a power of two",
-                   s->extent_size);
-        ret = -EINVAL;
-        goto fail;
-    } else if (s->extent_size > 0x800000) {
-        error_setg(errp, "Extent size %" PRIu32 " is too large",
-                   s->extent_size);
-        ret = -EINVAL;
-        goto fail;
-    }
+    s->extent_size = le32_to_cpu(bochs.extra.redolog.extent);
 
-    if (s->catalog_size < DIV_ROUND_UP(bs->total_sectors,
-                                       s->extent_size / BDRV_SECTOR_SIZE))
-    {
-        error_setg(errp, "Catalog size is too small for this disk size");
-        ret = -EINVAL;
-        goto fail;
-    }
-
-    qemu_co_mutex_init(&s->lock);
     return 0;
-
-fail:
-    g_free(s->catalog_bitmap);
-    return ret;
+ fail:
+    close(fd);
+    return -1;
 }
 
-static void bochs_refresh_limits(BlockDriverState *bs, Error **errp)
-{
-    bs->bl.request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O */
-}
-
-static int64_t seek_to_sector(BlockDriverState *bs, int64_t sector_num)
+static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num)
 {
     BDRVBochsState *s = bs->opaque;
-    uint64_t offset = sector_num * 512;
-    uint64_t extent_index, extent_offset, bitmap_offset;
+    int64_t offset = sector_num * 512;
+    int64_t extent_index, extent_offset, bitmap_offset, block_offset;
     char bitmap_entry;
-    int ret;
 
     // seek to sector
     extent_index = offset / s->extent_size;
     extent_offset = (offset % s->extent_size) / 512;
 
-    if (s->catalog_bitmap[extent_index] == 0xffffffff) {
-	return 0; /* not allocated */
+    if (s->catalog_bitmap[extent_index] == 0xffffffff)
+    {
+//	fprintf(stderr, "page not allocated [%x - %x:%x]\n",
+//	    sector_num, extent_index, extent_offset);
+	return -1; // not allocated
     }
 
-    bitmap_offset = s->data_offset +
-        (512 * (uint64_t) s->catalog_bitmap[extent_index] *
-        (s->extent_blocks + s->bitmap_blocks));
+    bitmap_offset = s->data_offset + (512 * s->catalog_bitmap[extent_index] *
+	(s->extent_blocks + s->bitmap_blocks));
+    block_offset = bitmap_offset + (512 * (s->bitmap_blocks + extent_offset));
 
-    /* read in bitmap for current extent */
-    ret = bdrv_pread(bs->file, bitmap_offset + (extent_offset / 8),
-                     &bitmap_entry, 1);
-    if (ret < 0) {
-        return ret;
+//    fprintf(stderr, "sect: %x [ext i: %x o: %x] -> %x bitmap: %x block: %x\n",
+//	sector_num, extent_index, extent_offset,
+//	le32_to_cpu(s->catalog_bitmap[extent_index]),
+//	bitmap_offset, block_offset);
+
+    // read in bitmap for current extent
+    lseek(s->fd, bitmap_offset + (extent_offset / 8), SEEK_SET);
+
+    read(s->fd, &bitmap_entry, 1);
+
+    if (!((bitmap_entry >> (extent_offset % 8)) & 1))
+    {
+//	fprintf(stderr, "sector (%x) in bitmap not allocated\n",
+//	    sector_num);
+	return -1; // not allocated
     }
 
-    if (!((bitmap_entry >> (extent_offset % 8)) & 1)) {
-	return 0; /* not allocated */
-    }
+    lseek(s->fd, block_offset, SEEK_SET);
 
-    return bitmap_offset + (512 * (s->bitmap_blocks + extent_offset));
+    return 0;
 }
 
-static int coroutine_fn
-bochs_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
-                QEMUIOVector *qiov, int flags)
+static int bochs_read(BlockDriverState *bs, int64_t sector_num,
+                    uint8_t *buf, int nb_sectors)
 {
     BDRVBochsState *s = bs->opaque;
-    uint64_t sector_num = offset >> BDRV_SECTOR_BITS;
-    int nb_sectors = bytes >> BDRV_SECTOR_BITS;
-    uint64_t bytes_done = 0;
-    QEMUIOVector local_qiov;
     int ret;
 
-    assert((offset & (BDRV_SECTOR_SIZE - 1)) == 0);
-    assert((bytes & (BDRV_SECTOR_SIZE - 1)) == 0);
-
-    qemu_iovec_init(&local_qiov, qiov->niov);
-    qemu_co_mutex_lock(&s->lock);
-
     while (nb_sectors > 0) {
-        int64_t block_offset = seek_to_sector(bs, sector_num);
-        if (block_offset < 0) {
-            ret = block_offset;
-            goto fail;
-        }
-
-        qemu_iovec_reset(&local_qiov);
-        qemu_iovec_concat(&local_qiov, qiov, bytes_done, 512);
-
-        if (block_offset > 0) {
-            ret = bdrv_co_preadv(bs->file, block_offset, 512,
-                                 &local_qiov, 0);
-            if (ret < 0) {
-                goto fail;
-            }
-        } else {
-            qemu_iovec_memset(&local_qiov, 0, 0, 512);
-        }
+	if (!seek_to_sector(bs, sector_num))
+	{
+	    ret = read(s->fd, buf, 512);
+	    if (ret != 512)
+		return -1;
+	}
+	else
+            memset(buf, 0, 512);
         nb_sectors--;
         sector_num++;
-        bytes_done += 512;
+        buf += 512;
     }
-
-    ret = 0;
-fail:
-    qemu_co_mutex_unlock(&s->lock);
-    qemu_iovec_destroy(&local_qiov);
-
-    return ret;
+    return 0;
 }
 
 static void bochs_close(BlockDriverState *bs)
 {
     BDRVBochsState *s = bs->opaque;
-    g_free(s->catalog_bitmap);
+    qemu_free(s->catalog_bitmap);
+    close(s->fd);
 }
 
 static BlockDriver bdrv_bochs = {
@@ -296,9 +247,7 @@ static BlockDriver bdrv_bochs = {
     .instance_size	= sizeof(BDRVBochsState),
     .bdrv_probe		= bochs_probe,
     .bdrv_open		= bochs_open,
-    .bdrv_child_perm     = bdrv_format_default_perms,
-    .bdrv_refresh_limits = bochs_refresh_limits,
-    .bdrv_co_preadv = bochs_co_preadv,
+    .bdrv_read		= bochs_read,
     .bdrv_close		= bochs_close,
 };
 

block/cloop.c

@@ -21,22 +21,16 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "qemu/osdep.h"
-#include "qapi/error.h"
 #include "qemu-common.h"
-#include "block/block_int.h"
-#include "qemu/module.h"
-#include "qemu/bswap.h"
+#include "block_int.h"
+#include "module.h"
 #include <zlib.h>
 
-/* Maximum compressed block size */
-#define MAX_BLOCK_SIZE (64 * 1024 * 1024)
-
 typedef struct BDRVCloopState {
-    CoMutex lock;
+    int fd;
     uint32_t block_size;
     uint32_t n_blocks;
-    uint64_t *offsets;
+    uint64_t* offsets;
     uint32_t sectors_per_block;
     uint32_t current_block;
     uint8_t *compressed_block;
@@ -46,257 +40,127 @@ typedef struct BDRVCloopState {
 
 static int cloop_probe(const uint8_t *buf, int buf_size, const char *filename)
 {
-    const char *magic_version_2_0 = "#!/bin/sh\n"
-        "#V2.0 Format\n"
-        "modprobe cloop file=$0 && mount -r -t iso9660 /dev/cloop $1\n";
-    int length = strlen(magic_version_2_0);
-    if (length > buf_size) {
-        length = buf_size;
-    }
-    if (!memcmp(magic_version_2_0, buf, length)) {
-        return 2;
-    }
+    const char* magic_version_2_0="#!/bin/sh\n"
+	"#V2.0 Format\n"
+	"modprobe cloop file=$0 && mount -r -t iso9660 /dev/cloop $1\n";
+    int length=strlen(magic_version_2_0);
+    if(length>buf_size)
+	length=buf_size;
+    if(!memcmp(magic_version_2_0,buf,length))
+	return 2;
     return 0;
 }
 
-static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
-                      Error **errp)
+static int cloop_open(BlockDriverState *bs, const char *filename, int flags)
 {
     BDRVCloopState *s = bs->opaque;
-    uint32_t offsets_size, max_compressed_block_size = 1, i;
-    int ret;
+    uint32_t offsets_size,max_compressed_block_size=1,i;
 
-    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_file,
-                               false, errp);
-    if (!bs->file) {
-        return -EINVAL;
-    }
-
-    ret = bdrv_set_read_only(bs, true, errp);
-    if (ret < 0) {
-        return ret;
-    }
+    s->fd = open(filename, O_RDONLY | O_BINARY);
+    if (s->fd < 0)
+        return -errno;
+    bs->read_only = 1;
 
     /* read header */
-    ret = bdrv_pread(bs->file, 128, &s->block_size, 4);
-    if (ret < 0) {
-        return ret;
+    if(lseek(s->fd,128,SEEK_SET)<0) {
+cloop_close:
+	close(s->fd);
+	return -1;
     }
-    s->block_size = be32_to_cpu(s->block_size);
-    if (s->block_size % 512) {
-        error_setg(errp, "block_size %" PRIu32 " must be a multiple of 512",
-                   s->block_size);
-        return -EINVAL;
-    }
-    if (s->block_size == 0) {
-        error_setg(errp, "block_size cannot be zero");
-        return -EINVAL;
-    }
-
-    /* cloop's create_compressed_fs.c warns about block sizes beyond 256 KB but
-     * we can accept more.  Prevent ridiculous values like 4 GB - 1 since we
-     * need a buffer this big.
-     */
-    if (s->block_size > MAX_BLOCK_SIZE) {
-        error_setg(errp, "block_size %" PRIu32 " must be %u MB or less",
-                   s->block_size,
-                   MAX_BLOCK_SIZE / (1024 * 1024));
-        return -EINVAL;
-    }
-
-    ret = bdrv_pread(bs->file, 128 + 4, &s->n_blocks, 4);
-    if (ret < 0) {
-        return ret;
-    }
-    s->n_blocks = be32_to_cpu(s->n_blocks);
+    if(read(s->fd,&s->block_size,4)<4)
+	goto cloop_close;
+    s->block_size=be32_to_cpu(s->block_size);
+    if(read(s->fd,&s->n_blocks,4)<4)
+	goto cloop_close;
+    s->n_blocks=be32_to_cpu(s->n_blocks);
 
     /* read offsets */
-    if (s->n_blocks > (UINT32_MAX - 1) / sizeof(uint64_t)) {
-        /* Prevent integer overflow */
-        error_setg(errp, "n_blocks %" PRIu32 " must be %zu or less",
-                   s->n_blocks,
-                   (UINT32_MAX - 1) / sizeof(uint64_t));
-        return -EINVAL;
-    }
-    offsets_size = (s->n_blocks + 1) * sizeof(uint64_t);
-    if (offsets_size > 512 * 1024 * 1024) {
-        /* Prevent ridiculous offsets_size which causes memory allocation to
-         * fail or overflows bdrv_pread() size.  In practice the 512 MB
-         * offsets[] limit supports 16 TB images at 256 KB block size.
-         */
-        error_setg(errp, "image requires too many offsets, "
-                   "try increasing block size");
-        return -EINVAL;
-    }
-
-    s->offsets = g_try_malloc(offsets_size);
-    if (s->offsets == NULL) {
-        error_setg(errp, "Could not allocate offsets table");
-        return -ENOMEM;
-    }
-
-    ret = bdrv_pread(bs->file, 128 + 4 + 4, s->offsets, offsets_size);
-    if (ret < 0) {
-        goto fail;
-    }
-
-    for (i = 0; i < s->n_blocks + 1; i++) {
-        uint64_t size;
-
-        s->offsets[i] = be64_to_cpu(s->offsets[i]);
-        if (i == 0) {
-            continue;
-        }
-
-        if (s->offsets[i] < s->offsets[i - 1]) {
-            error_setg(errp, "offsets not monotonically increasing at "
-                       "index %" PRIu32 ", image file is corrupt", i);
-            ret = -EINVAL;
-            goto fail;
-        }
-
-        size = s->offsets[i] - s->offsets[i - 1];
-
-        /* Compressed blocks should be smaller than the uncompressed block size
-         * but maybe compression performed poorly so the compressed block is
-         * actually bigger.  Clamp down on unrealistic values to prevent
-         * ridiculous s->compressed_block allocation.
-         */
-        if (size > 2 * MAX_BLOCK_SIZE) {
-            error_setg(errp, "invalid compressed block size at index %" PRIu32
-                       ", image file is corrupt", i);
-            ret = -EINVAL;
-            goto fail;
-        }
-
-        if (size > max_compressed_block_size) {
-            max_compressed_block_size = size;
-        }
+    offsets_size=s->n_blocks*sizeof(uint64_t);
+    s->offsets=(uint64_t*)qemu_malloc(offsets_size);
+    if(read(s->fd,s->offsets,offsets_size)<offsets_size)
+	goto cloop_close;
+    for(i=0;i<s->n_blocks;i++) {
+	s->offsets[i]=be64_to_cpu(s->offsets[i]);
+	if(i>0) {
+	    uint32_t size=s->offsets[i]-s->offsets[i-1];
+	    if(size>max_compressed_block_size)
+		max_compressed_block_size=size;
+	}
     }
 
     /* initialize zlib engine */
-    s->compressed_block = g_try_malloc(max_compressed_block_size + 1);
-    if (s->compressed_block == NULL) {
-        error_setg(errp, "Could not allocate compressed_block");
-        ret = -ENOMEM;
-        goto fail;
-    }
-
-    s->uncompressed_block = g_try_malloc(s->block_size);
-    if (s->uncompressed_block == NULL) {
-        error_setg(errp, "Could not allocate uncompressed_block");
-        ret = -ENOMEM;
-        goto fail;
-    }
-
-    if (inflateInit(&s->zstream) != Z_OK) {
-        ret = -EINVAL;
-        goto fail;
-    }
-    s->current_block = s->n_blocks;
+    s->compressed_block = qemu_malloc(max_compressed_block_size+1);
+    s->uncompressed_block = qemu_malloc(s->block_size);
+    if(inflateInit(&s->zstream) != Z_OK)
+	goto cloop_close;
+    s->current_block=s->n_blocks;
 
     s->sectors_per_block = s->block_size/512;
-    bs->total_sectors = s->n_blocks * s->sectors_per_block;
-    qemu_co_mutex_init(&s->lock);
+    bs->total_sectors = s->n_blocks*s->sectors_per_block;
     return 0;
-
-fail:
-    g_free(s->offsets);
-    g_free(s->compressed_block);
-    g_free(s->uncompressed_block);
-    return ret;
 }
 
-static void cloop_refresh_limits(BlockDriverState *bs, Error **errp)
+static inline int cloop_read_block(BDRVCloopState *s,int block_num)
 {
-    bs->bl.request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O */
-}
+    if(s->current_block != block_num) {
+	int ret;
+        uint32_t bytes = s->offsets[block_num+1]-s->offsets[block_num];
 
-static inline int cloop_read_block(BlockDriverState *bs, int block_num)
-{
-    BDRVCloopState *s = bs->opaque;
-
-    if (s->current_block != block_num) {
-        int ret;
-        uint32_t bytes = s->offsets[block_num + 1] - s->offsets[block_num];
-
-        ret = bdrv_pread(bs->file, s->offsets[block_num],
-                         s->compressed_block, bytes);
-        if (ret != bytes) {
+	lseek(s->fd, s->offsets[block_num], SEEK_SET);
+        ret = read(s->fd, s->compressed_block, bytes);
+        if (ret != bytes)
             return -1;
-        }
 
-        s->zstream.next_in = s->compressed_block;
-        s->zstream.avail_in = bytes;
-        s->zstream.next_out = s->uncompressed_block;
-        s->zstream.avail_out = s->block_size;
-        ret = inflateReset(&s->zstream);
-        if (ret != Z_OK) {
-            return -1;
-        }
-        ret = inflate(&s->zstream, Z_FINISH);
-        if (ret != Z_STREAM_END || s->zstream.total_out != s->block_size) {
-            return -1;
-        }
+	s->zstream.next_in = s->compressed_block;
+	s->zstream.avail_in = bytes;
+	s->zstream.next_out = s->uncompressed_block;
+	s->zstream.avail_out = s->block_size;
+	ret = inflateReset(&s->zstream);
+	if(ret != Z_OK)
+	    return -1;
+	ret = inflate(&s->zstream, Z_FINISH);
+	if(ret != Z_STREAM_END || s->zstream.total_out != s->block_size)
+	    return -1;
 
-        s->current_block = block_num;
+	s->current_block = block_num;
     }
     return 0;
 }
 
-static int coroutine_fn
-cloop_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
-                QEMUIOVector *qiov, int flags)
+static int cloop_read(BlockDriverState *bs, int64_t sector_num,
+                    uint8_t *buf, int nb_sectors)
 {
     BDRVCloopState *s = bs->opaque;
-    uint64_t sector_num = offset >> BDRV_SECTOR_BITS;
-    int nb_sectors = bytes >> BDRV_SECTOR_BITS;
-    int ret, i;
+    int i;
 
-    assert((offset & (BDRV_SECTOR_SIZE - 1)) == 0);
-    assert((bytes & (BDRV_SECTOR_SIZE - 1)) == 0);
-
-    qemu_co_mutex_lock(&s->lock);
-
-    for (i = 0; i < nb_sectors; i++) {
-        void *data;
-        uint32_t sector_offset_in_block =
-            ((sector_num + i) % s->sectors_per_block),
-            block_num = (sector_num + i) / s->sectors_per_block;
-        if (cloop_read_block(bs, block_num) != 0) {
-            ret = -EIO;
-            goto fail;
-        }
-
-        data = s->uncompressed_block + sector_offset_in_block * 512;
-        qemu_iovec_from_buf(qiov, i * 512, data, 512);
+    for(i=0;i<nb_sectors;i++) {
+	uint32_t sector_offset_in_block=((sector_num+i)%s->sectors_per_block),
+	    block_num=(sector_num+i)/s->sectors_per_block;
+	if(cloop_read_block(s, block_num) != 0)
+	    return -1;
+	memcpy(buf+i*512,s->uncompressed_block+sector_offset_in_block*512,512);
     }
-
-    ret = 0;
-fail:
-    qemu_co_mutex_unlock(&s->lock);
-
-    return ret;
+    return 0;
 }
 
 static void cloop_close(BlockDriverState *bs)
 {
     BDRVCloopState *s = bs->opaque;
-    g_free(s->offsets);
-    g_free(s->compressed_block);
-    g_free(s->uncompressed_block);
+    close(s->fd);
+    if(s->n_blocks>0)
+	free(s->offsets);
+    free(s->compressed_block);
+    free(s->uncompressed_block);
     inflateEnd(&s->zstream);
 }
 
 static BlockDriver bdrv_cloop = {
-    .format_name    = "cloop",
-    .instance_size  = sizeof(BDRVCloopState),
-    .bdrv_probe     = cloop_probe,
-    .bdrv_open      = cloop_open,
-    .bdrv_child_perm     = bdrv_format_default_perms,
-    .bdrv_refresh_limits = cloop_refresh_limits,
-    .bdrv_co_preadv = cloop_co_preadv,
-    .bdrv_close     = cloop_close,
+    .format_name	= "cloop",
+    .instance_size	= sizeof(BDRVCloopState),
+    .bdrv_probe		= cloop_probe,
+    .bdrv_open		= cloop_open,
+    .bdrv_read		= cloop_read,
+    .bdrv_close		= cloop_close,
 };
 
 static void bdrv_cloop_init(void)

block/commit.c

@@ -1,589 +0,0 @@
-/*
- * Live block commit
- *
- * Copyright Red Hat, Inc. 2012
- *
- * Authors:
- *  Jeff Cody   <jcody@redhat.com>
- *  Based on stream.c by Stefan Hajnoczi
- *
- * This work is licensed under the terms of the GNU LGPL, version 2 or later.
- * See the COPYING.LIB file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qemu/cutils.h"
-#include "trace.h"
-#include "block/block_int.h"
-#include "block/blockjob_int.h"
-#include "qapi/error.h"
-#include "qapi/qmp/qerror.h"
-#include "qemu/ratelimit.h"
-#include "sysemu/block-backend.h"
-
-enum {
-    /*
-     * Size of data buffer for populating the image file.  This should be large
-     * enough to process multiple clusters in a single call, so that populating
-     * contiguous regions of the image is efficient.
-     */
-    COMMIT_BUFFER_SIZE = 512 * 1024, /* in bytes */
-};
-
-#define SLICE_TIME 100000000ULL /* ns */
-
-typedef struct CommitBlockJob {
-    BlockJob common;
-    RateLimit limit;
-    BlockDriverState *active;
-    BlockDriverState *commit_top_bs;
-    BlockBackend *top;
-    BlockBackend *base;
-    BlockdevOnError on_error;
-    int base_flags;
-    int orig_overlay_flags;
-    char *backing_file_str;
-} CommitBlockJob;
-
-static int coroutine_fn commit_populate(BlockBackend *bs, BlockBackend *base,
-                                        int64_t sector_num, int nb_sectors,
-                                        void *buf)
-{
-    int ret = 0;
-    QEMUIOVector qiov;
-    struct iovec iov = {
-        .iov_base = buf,
-        .iov_len = nb_sectors * BDRV_SECTOR_SIZE,
-    };
-
-    qemu_iovec_init_external(&qiov, &iov, 1);
-
-    ret = blk_co_preadv(bs, sector_num * BDRV_SECTOR_SIZE,
-                        qiov.size, &qiov, 0);
-    if (ret < 0) {
-        return ret;
-    }
-
-    ret = blk_co_pwritev(base, sector_num * BDRV_SECTOR_SIZE,
-                         qiov.size, &qiov, 0);
-    if (ret < 0) {
-        return ret;
-    }
-
-    return 0;
-}
-
-typedef struct {
-    int ret;
-} CommitCompleteData;
-
-static void commit_complete(BlockJob *job, void *opaque)
-{
-    CommitBlockJob *s = container_of(job, CommitBlockJob, common);
-    CommitCompleteData *data = opaque;
-    BlockDriverState *active = s->active;
-    BlockDriverState *top = blk_bs(s->top);
-    BlockDriverState *base = blk_bs(s->base);
-    BlockDriverState *overlay_bs = bdrv_find_overlay(active, s->commit_top_bs);
-    int ret = data->ret;
-    bool remove_commit_top_bs = false;
-
-    /* Make sure overlay_bs and top stay around until bdrv_set_backing_hd() */
-    bdrv_ref(top);
-    bdrv_ref(overlay_bs);
-
-    /* Remove base node parent that still uses BLK_PERM_WRITE/RESIZE before
-     * the normal backing chain can be restored. */
-    blk_unref(s->base);
-
-    if (!block_job_is_cancelled(&s->common) && ret == 0) {
-        /* success */
-        ret = bdrv_drop_intermediate(active, s->commit_top_bs, base,
-                                     s->backing_file_str);
-    } else if (overlay_bs) {
-        /* XXX Can (or should) we somehow keep 'consistent read' blocked even
-         * after the failed/cancelled commit job is gone? If we already wrote
-         * something to base, the intermediate images aren't valid any more. */
-        remove_commit_top_bs = true;
-    }
-
-    /* restore base open flags here if appropriate (e.g., change the base back
-     * to r/o). These reopens do not need to be atomic, since we won't abort
-     * even on failure here */
-    if (s->base_flags != bdrv_get_flags(base)) {
-        bdrv_reopen(base, s->base_flags, NULL);
-    }
-    if (overlay_bs && s->orig_overlay_flags != bdrv_get_flags(overlay_bs)) {
-        bdrv_reopen(overlay_bs, s->orig_overlay_flags, NULL);
-    }
-    g_free(s->backing_file_str);
-    blk_unref(s->top);
-    block_job_completed(&s->common, ret);
-    g_free(data);
-
-    /* If bdrv_drop_intermediate() didn't already do that, remove the commit
-     * filter driver from the backing chain. Do this as the final step so that
-     * the 'consistent read' permission can be granted.  */
-    if (remove_commit_top_bs) {
-        bdrv_set_backing_hd(overlay_bs, top, &error_abort);
-    }
-
-    bdrv_unref(overlay_bs);
-    bdrv_unref(top);
-}
-
-static void coroutine_fn commit_run(void *opaque)
-{
-    CommitBlockJob *s = opaque;
-    CommitCompleteData *data;
-    int64_t sector_num, end;
-    uint64_t delay_ns = 0;
-    int ret = 0;
-    int n = 0;
-    void *buf = NULL;
-    int bytes_written = 0;
-    int64_t base_len;
-
-    ret = s->common.len = blk_getlength(s->top);
-
-
-    if (s->common.len < 0) {
-        goto out;
-    }
-
-    ret = base_len = blk_getlength(s->base);
-    if (base_len < 0) {
-        goto out;
-    }
-
-    if (base_len < s->common.len) {
-        ret = blk_truncate(s->base, s->common.len, NULL);
-        if (ret) {
-            goto out;
-        }
-    }
-
-    end = s->common.len >> BDRV_SECTOR_BITS;
-    buf = blk_blockalign(s->top, COMMIT_BUFFER_SIZE);
-
-    for (sector_num = 0; sector_num < end; sector_num += n) {
-        bool copy;
-
-        /* Note that even when no rate limit is applied we need to yield
-         * with no pending I/O here so that bdrv_drain_all() returns.
-         */
-        block_job_sleep_ns(&s->common, QEMU_CLOCK_REALTIME, delay_ns);
-        if (block_job_is_cancelled(&s->common)) {
-            break;
-        }
-        /* Copy if allocated above the base */
-        ret = bdrv_is_allocated_above(blk_bs(s->top), blk_bs(s->base),
-                                      sector_num,
-                                      COMMIT_BUFFER_SIZE / BDRV_SECTOR_SIZE,
-                                      &n);
-        copy = (ret == 1);
-        trace_commit_one_iteration(s, sector_num, n, ret);
-        if (copy) {
-            ret = commit_populate(s->top, s->base, sector_num, n, buf);
-            bytes_written += n * BDRV_SECTOR_SIZE;
-        }
-        if (ret < 0) {
-            BlockErrorAction action =
-                block_job_error_action(&s->common, false, s->on_error, -ret);
-            if (action == BLOCK_ERROR_ACTION_REPORT) {
-                goto out;
-            } else {
-                n = 0;
-                continue;
-            }
-        }
-        /* Publish progress */
-        s->common.offset += n * BDRV_SECTOR_SIZE;
-
-        if (copy && s->common.speed) {
-            delay_ns = ratelimit_calculate_delay(&s->limit, n);
-        }
-    }
-
-    ret = 0;
-
-out:
-    qemu_vfree(buf);
-
-    data = g_malloc(sizeof(*data));
-    data->ret = ret;
-    block_job_defer_to_main_loop(&s->common, commit_complete, data);
-}
-
-static void commit_set_speed(BlockJob *job, int64_t speed, Error **errp)
-{
-    CommitBlockJob *s = container_of(job, CommitBlockJob, common);
-
-    if (speed < 0) {
-        error_setg(errp, QERR_INVALID_PARAMETER, "speed");
-        return;
-    }
-    ratelimit_set_speed(&s->limit, speed / BDRV_SECTOR_SIZE, SLICE_TIME);
-}
-
-static const BlockJobDriver commit_job_driver = {
-    .instance_size = sizeof(CommitBlockJob),
-    .job_type      = BLOCK_JOB_TYPE_COMMIT,
-    .set_speed     = commit_set_speed,
-    .start         = commit_run,
-};
-
-static int coroutine_fn bdrv_commit_top_preadv(BlockDriverState *bs,
-    uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags)
-{
-    return bdrv_co_preadv(bs->backing, offset, bytes, qiov, flags);
-}
-
-static int64_t coroutine_fn bdrv_commit_top_get_block_status(
-    BlockDriverState *bs, int64_t sector_num, int nb_sectors, int *pnum,
-    BlockDriverState **file)
-{
-    *pnum = nb_sectors;
-    *file = bs->backing->bs;
-    return BDRV_BLOCK_RAW | BDRV_BLOCK_OFFSET_VALID | BDRV_BLOCK_DATA |
-           (sector_num << BDRV_SECTOR_BITS);
-}
-
-static void bdrv_commit_top_refresh_filename(BlockDriverState *bs, QDict *opts)
-{
-    bdrv_refresh_filename(bs->backing->bs);
-    pstrcpy(bs->exact_filename, sizeof(bs->exact_filename),
-            bs->backing->bs->filename);
-}
-
-static void bdrv_commit_top_close(BlockDriverState *bs)
-{
-}
-
-static void bdrv_commit_top_child_perm(BlockDriverState *bs, BdrvChild *c,
-                                       const BdrvChildRole *role,
-                                       uint64_t perm, uint64_t shared,
-                                       uint64_t *nperm, uint64_t *nshared)
-{
-    *nperm = 0;
-    *nshared = BLK_PERM_ALL;
-}
-
-/* Dummy node that provides consistent read to its users without requiring it
- * from its backing file and that allows writes on the backing file chain. */
-static BlockDriver bdrv_commit_top = {
-    .format_name                = "commit_top",
-    .bdrv_co_preadv             = bdrv_commit_top_preadv,
-    .bdrv_co_get_block_status   = bdrv_commit_top_get_block_status,
-    .bdrv_refresh_filename      = bdrv_commit_top_refresh_filename,
-    .bdrv_close                 = bdrv_commit_top_close,
-    .bdrv_child_perm            = bdrv_commit_top_child_perm,
-};
-
-void commit_start(const char *job_id, BlockDriverState *bs,
-                  BlockDriverState *base, BlockDriverState *top, int64_t speed,
-                  BlockdevOnError on_error, const char *backing_file_str,
-                  const char *filter_node_name, Error **errp)
-{
-    CommitBlockJob *s;
-    BlockReopenQueue *reopen_queue = NULL;
-    int orig_overlay_flags;
-    int orig_base_flags;
-    BlockDriverState *iter;
-    BlockDriverState *overlay_bs;
-    BlockDriverState *commit_top_bs = NULL;
-    Error *local_err = NULL;
-    int ret;
-
-    assert(top != bs);
-    if (top == base) {
-        error_setg(errp, "Invalid files for merge: top and base are the same");
-        return;
-    }
-
-    overlay_bs = bdrv_find_overlay(bs, top);
-
-    if (overlay_bs == NULL) {
-        error_setg(errp, "Could not find overlay image for %s:", top->filename);
-        return;
-    }
-
-    s = block_job_create(job_id, &commit_job_driver, bs, 0, BLK_PERM_ALL,
-                         speed, BLOCK_JOB_DEFAULT, NULL, NULL, errp);
-    if (!s) {
-        return;
-    }
-
-    orig_base_flags    = bdrv_get_flags(base);
-    orig_overlay_flags = bdrv_get_flags(overlay_bs);
-
-    /* convert base & overlay_bs to r/w, if necessary */
-    if (!(orig_base_flags & BDRV_O_RDWR)) {
-        reopen_queue = bdrv_reopen_queue(reopen_queue, base, NULL,
-                                         orig_base_flags | BDRV_O_RDWR);
-    }
-    if (!(orig_overlay_flags & BDRV_O_RDWR)) {
-        reopen_queue = bdrv_reopen_queue(reopen_queue, overlay_bs, NULL,
-                                         orig_overlay_flags | BDRV_O_RDWR);
-    }
-    if (reopen_queue) {
-        bdrv_reopen_multiple(bdrv_get_aio_context(bs), reopen_queue, &local_err);
-        if (local_err != NULL) {
-            error_propagate(errp, local_err);
-            goto fail;
-        }
-    }
-
-    /* Insert commit_top block node above top, so we can block consistent read
-     * on the backing chain below it */
-    commit_top_bs = bdrv_new_open_driver(&bdrv_commit_top, filter_node_name, 0,
-                                         errp);
-    if (commit_top_bs == NULL) {
-        goto fail;
-    }
-    commit_top_bs->total_sectors = top->total_sectors;
-    bdrv_set_aio_context(commit_top_bs, bdrv_get_aio_context(top));
-
-    bdrv_set_backing_hd(commit_top_bs, top, &local_err);
-    if (local_err) {
-        bdrv_unref(commit_top_bs);
-        commit_top_bs = NULL;
-        error_propagate(errp, local_err);
-        goto fail;
-    }
-    bdrv_set_backing_hd(overlay_bs, commit_top_bs, &local_err);
-    if (local_err) {
-        bdrv_unref(commit_top_bs);
-        commit_top_bs = NULL;
-        error_propagate(errp, local_err);
-        goto fail;
-    }
-
-    s->commit_top_bs = commit_top_bs;
-    bdrv_unref(commit_top_bs);
-
-    /* Block all nodes between top and base, because they will
-     * disappear from the chain after this operation. */
-    assert(bdrv_chain_contains(top, base));
-    for (iter = top; iter != base; iter = backing_bs(iter)) {
-        /* XXX BLK_PERM_WRITE needs to be allowed so we don't block ourselves
-         * at s->base (if writes are blocked for a node, they are also blocked
-         * for its backing file). The other options would be a second filter
-         * driver above s->base. */
-        ret = block_job_add_bdrv(&s->common, "intermediate node", iter, 0,
-                                 BLK_PERM_WRITE_UNCHANGED | BLK_PERM_WRITE,
-                                 errp);
-        if (ret < 0) {
-            goto fail;
-        }
-    }
-
-    ret = block_job_add_bdrv(&s->common, "base", base, 0, BLK_PERM_ALL, errp);
-    if (ret < 0) {
-        goto fail;
-    }
-
-    /* overlay_bs must be blocked because it needs to be modified to
-     * update the backing image string. */
-    ret = block_job_add_bdrv(&s->common, "overlay of top", overlay_bs,
-                             BLK_PERM_GRAPH_MOD, BLK_PERM_ALL, errp);
-    if (ret < 0) {
-        goto fail;
-    }
-
-    s->base = blk_new(BLK_PERM_CONSISTENT_READ
-                      | BLK_PERM_WRITE
-                      | BLK_PERM_RESIZE,
-                      BLK_PERM_CONSISTENT_READ
-                      | BLK_PERM_GRAPH_MOD
-                      | BLK_PERM_WRITE_UNCHANGED);
-    ret = blk_insert_bs(s->base, base, errp);
-    if (ret < 0) {
-        goto fail;
-    }
-
-    /* Required permissions are already taken with block_job_add_bdrv() */
-    s->top = blk_new(0, BLK_PERM_ALL);
-    ret = blk_insert_bs(s->top, top, errp);
-    if (ret < 0) {
-        goto fail;
-    }
-
-    s->active = bs;
-
-    s->base_flags          = orig_base_flags;
-    s->orig_overlay_flags  = orig_overlay_flags;
-
-    s->backing_file_str = g_strdup(backing_file_str);
-
-    s->on_error = on_error;
-
-    trace_commit_start(bs, base, top, s);
-    block_job_start(&s->common);
-    return;
-
-fail:
-    if (s->base) {
-        blk_unref(s->base);
-    }
-    if (s->top) {
-        blk_unref(s->top);
-    }
-    if (commit_top_bs) {
-        bdrv_set_backing_hd(overlay_bs, top, &error_abort);
-    }
-    block_job_early_fail(&s->common);
-}
-
-
-#define COMMIT_BUF_SECTORS 2048
-
-/* commit COW file into the raw image */
-int bdrv_commit(BlockDriverState *bs)
-{
-    BlockBackend *src, *backing;
-    BlockDriverState *backing_file_bs = NULL;
-    BlockDriverState *commit_top_bs = NULL;
-    BlockDriver *drv = bs->drv;
-    int64_t sector, total_sectors, length, backing_length;
-    int n, ro, open_flags;
-    int ret = 0;
-    uint8_t *buf = NULL;
-    Error *local_err = NULL;
-
-    if (!drv)
-        return -ENOMEDIUM;
-
-    if (!bs->backing) {
-        return -ENOTSUP;
-    }
-
-    if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_COMMIT_SOURCE, NULL) ||
-        bdrv_op_is_blocked(bs->backing->bs, BLOCK_OP_TYPE_COMMIT_TARGET, NULL)) {
-        return -EBUSY;
-    }
-
-    ro = bs->backing->bs->read_only;
-    open_flags =  bs->backing->bs->open_flags;
-
-    if (ro) {
-        if (bdrv_reopen(bs->backing->bs, open_flags | BDRV_O_RDWR, NULL)) {
-            return -EACCES;
-        }
-    }
-
-    src = blk_new(BLK_PERM_CONSISTENT_READ, BLK_PERM_ALL);
-    backing = blk_new(BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL);
-
-    ret = blk_insert_bs(src, bs, &local_err);
-    if (ret < 0) {
-        error_report_err(local_err);
-        goto ro_cleanup;
-    }
-
-    /* Insert commit_top block node above backing, so we can write to it */
-    backing_file_bs = backing_bs(bs);
-
-    commit_top_bs = bdrv_new_open_driver(&bdrv_commit_top, NULL, BDRV_O_RDWR,
-                                         &local_err);
-    if (commit_top_bs == NULL) {
-        error_report_err(local_err);
-        goto ro_cleanup;
-    }
-    bdrv_set_aio_context(commit_top_bs, bdrv_get_aio_context(backing_file_bs));
-
-    bdrv_set_backing_hd(commit_top_bs, backing_file_bs, &error_abort);
-    bdrv_set_backing_hd(bs, commit_top_bs, &error_abort);
-
-    ret = blk_insert_bs(backing, backing_file_bs, &local_err);
-    if (ret < 0) {
-        error_report_err(local_err);
-        goto ro_cleanup;
-    }
-
-    length = blk_getlength(src);
-    if (length < 0) {
-        ret = length;
-        goto ro_cleanup;
-    }
-
-    backing_length = blk_getlength(backing);
-    if (backing_length < 0) {
-        ret = backing_length;
-        goto ro_cleanup;
-    }
-
-    /* If our top snapshot is larger than the backing file image,
-     * grow the backing file image if possible.  If not possible,
-     * we must return an error */
-    if (length > backing_length) {
-        ret = blk_truncate(backing, length, &local_err);
-        if (ret < 0) {
-            error_report_err(local_err);
-            goto ro_cleanup;
-        }
-    }
-
-    total_sectors = length >> BDRV_SECTOR_BITS;
-
-    /* blk_try_blockalign() for src will choose an alignment that works for
-     * backing as well, so no need to compare the alignment manually. */
-    buf = blk_try_blockalign(src, COMMIT_BUF_SECTORS * BDRV_SECTOR_SIZE);
-    if (buf == NULL) {
-        ret = -ENOMEM;
-        goto ro_cleanup;
-    }
-
-    for (sector = 0; sector < total_sectors; sector += n) {
-        ret = bdrv_is_allocated(bs, sector, COMMIT_BUF_SECTORS, &n);
-        if (ret < 0) {
-            goto ro_cleanup;
-        }
-        if (ret) {
-            ret = blk_pread(src, sector * BDRV_SECTOR_SIZE, buf,
-                            n * BDRV_SECTOR_SIZE);
-            if (ret < 0) {
-                goto ro_cleanup;
-            }
-
-            ret = blk_pwrite(backing, sector * BDRV_SECTOR_SIZE, buf,
-                             n * BDRV_SECTOR_SIZE, 0);
-            if (ret < 0) {
-                goto ro_cleanup;
-            }
-        }
-    }
-
-    if (drv->bdrv_make_empty) {
-        ret = drv->bdrv_make_empty(bs);
-        if (ret < 0) {
-            goto ro_cleanup;
-        }
-        blk_flush(src);
-    }
-
-    /*
-     * Make sure all data we wrote to the backing device is actually
-     * stable on disk.
-     */
-    blk_flush(backing);
-
-    ret = 0;
-ro_cleanup:
-    qemu_vfree(buf);
-
-    blk_unref(backing);
-    if (backing_file_bs) {
-        bdrv_set_backing_hd(bs, backing_file_bs, &error_abort);
-    }
-    bdrv_unref(commit_top_bs);
-    blk_unref(src);
-
-    if (ro) {
-        /* ignoring error return here */
-        bdrv_reopen(bs->backing->bs, open_flags & ~BDRV_O_RDWR, NULL);
-    }
-
-    return ret;
-}

block/cow.c

@@ -0,0 +1,299 @@
+/*
+ * Block driver for the COW format
+ *
+ * Copyright (c) 2004 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef _WIN32
+#include "qemu-common.h"
+#include "block_int.h"
+#include "module.h"
+#include <sys/mman.h>
+
+/**************************************************************/
+/* COW block driver using file system holes */
+
+/* user mode linux compatible COW file */
+#define COW_MAGIC 0x4f4f4f4d  /* MOOO */
+#define COW_VERSION 2
+
+struct cow_header_v2 {
+    uint32_t magic;
+    uint32_t version;
+    char backing_file[1024];
+    int32_t mtime;
+    uint64_t size;
+    uint32_t sectorsize;
+};
+
+typedef struct BDRVCowState {
+    int fd;
+    uint8_t *cow_bitmap; /* if non NULL, COW mappings are used first */
+    uint8_t *cow_bitmap_addr; /* mmap address of cow_bitmap */
+    int cow_bitmap_size;
+    int64_t cow_sectors_offset;
+} BDRVCowState;
+
+static int cow_probe(const uint8_t *buf, int buf_size, const char *filename)
+{
+    const struct cow_header_v2 *cow_header = (const void *)buf;
+
+    if (buf_size >= sizeof(struct cow_header_v2) &&
+        be32_to_cpu(cow_header->magic) == COW_MAGIC &&
+        be32_to_cpu(cow_header->version) == COW_VERSION)
+        return 100;
+    else
+        return 0;
+}
+
+static int cow_open(BlockDriverState *bs, const char *filename, int flags)
+{
+    BDRVCowState *s = bs->opaque;
+    int fd;
+    struct cow_header_v2 cow_header;
+    int64_t size;
+
+    fd = open(filename, O_RDWR | O_BINARY | O_LARGEFILE);
+    if (fd < 0) {
+        fd = open(filename, O_RDONLY | O_BINARY | O_LARGEFILE);
+        if (fd < 0)
+            return -1;
+    }
+    s->fd = fd;
+    /* see if it is a cow image */
+    if (read(fd, &cow_header, sizeof(cow_header)) != sizeof(cow_header)) {
+        goto fail;
+    }
+
+    if (be32_to_cpu(cow_header.magic) != COW_MAGIC ||
+        be32_to_cpu(cow_header.version) != COW_VERSION) {
+        goto fail;
+    }
+
+    /* cow image found */
+    size = be64_to_cpu(cow_header.size);
+    bs->total_sectors = size / 512;
+
+    pstrcpy(bs->backing_file, sizeof(bs->backing_file),
+            cow_header.backing_file);
+
+    /* mmap the bitmap */
+    s->cow_bitmap_size = ((bs->total_sectors + 7) >> 3) + sizeof(cow_header);
+    s->cow_bitmap_addr = (void *)mmap(get_mmap_addr(s->cow_bitmap_size),
+                                      s->cow_bitmap_size,
+                                      PROT_READ | PROT_WRITE,
+                                      MAP_SHARED, s->fd, 0);
+    if (s->cow_bitmap_addr == MAP_FAILED)
+        goto fail;
+    s->cow_bitmap = s->cow_bitmap_addr + sizeof(cow_header);
+    s->cow_sectors_offset = (s->cow_bitmap_size + 511) & ~511;
+    return 0;
+ fail:
+    close(fd);
+    return -1;
+}
+
+static inline void cow_set_bit(uint8_t *bitmap, int64_t bitnum)
+{
+    bitmap[bitnum / 8] |= (1 << (bitnum%8));
+}
+
+static inline int is_bit_set(const uint8_t *bitmap, int64_t bitnum)
+{
+    return !!(bitmap[bitnum / 8] & (1 << (bitnum%8)));
+}
+
+
+/* Return true if first block has been changed (ie. current version is
+ * in COW file).  Set the number of continuous blocks for which that
+ * is true. */
+static inline int is_changed(uint8_t *bitmap,
+                             int64_t sector_num, int nb_sectors,
+                             int *num_same)
+{
+    int changed;
+
+    if (!bitmap || nb_sectors == 0) {
+	*num_same = nb_sectors;
+	return 0;
+    }
+
+    changed = is_bit_set(bitmap, sector_num);
+    for (*num_same = 1; *num_same < nb_sectors; (*num_same)++) {
+	if (is_bit_set(bitmap, sector_num + *num_same) != changed)
+	    break;
+    }
+
+    return changed;
+}
+
+static int cow_is_allocated(BlockDriverState *bs, int64_t sector_num,
+                            int nb_sectors, int *pnum)
+{
+    BDRVCowState *s = bs->opaque;
+    return is_changed(s->cow_bitmap, sector_num, nb_sectors, pnum);
+}
+
+static int cow_read(BlockDriverState *bs, int64_t sector_num,
+                    uint8_t *buf, int nb_sectors)
+{
+    BDRVCowState *s = bs->opaque;
+    int ret, n;
+
+    while (nb_sectors > 0) {
+        if (is_changed(s->cow_bitmap, sector_num, nb_sectors, &n)) {
+            lseek(s->fd, s->cow_sectors_offset + sector_num * 512, SEEK_SET);
+            ret = read(s->fd, buf, n * 512);
+            if (ret != n * 512)
+                return -1;
+        } else {
+            if (bs->backing_hd) {
+                /* read from the base image */
+                ret = bdrv_read(bs->backing_hd, sector_num, buf, n);
+                if (ret < 0)
+                    return -1;
+            } else {
+            memset(buf, 0, n * 512);
+        }
+        }
+        nb_sectors -= n;
+        sector_num += n;
+        buf += n * 512;
+    }
+    return 0;
+}
+
+static int cow_write(BlockDriverState *bs, int64_t sector_num,
+                     const uint8_t *buf, int nb_sectors)
+{
+    BDRVCowState *s = bs->opaque;
+    int ret, i;
+
+    lseek(s->fd, s->cow_sectors_offset + sector_num * 512, SEEK_SET);
+    ret = write(s->fd, buf, nb_sectors * 512);
+    if (ret != nb_sectors * 512)
+        return -1;
+    for (i = 0; i < nb_sectors; i++)
+        cow_set_bit(s->cow_bitmap, sector_num + i);
+    return 0;
+}
+
+static void cow_close(BlockDriverState *bs)
+{
+    BDRVCowState *s = bs->opaque;
+    munmap((void *)s->cow_bitmap_addr, s->cow_bitmap_size);
+    close(s->fd);
+}
+
+static int cow_create(const char *filename, QEMUOptionParameter *options)
+{
+    int fd, cow_fd;
+    struct cow_header_v2 cow_header;
+    struct stat st;
+    int64_t image_sectors = 0;
+    const char *image_filename = NULL;
+
+    /* Read out options */
+    while (options && options->name) {
+        if (!strcmp(options->name, BLOCK_OPT_SIZE)) {
+            image_sectors = options->value.n / 512;
+        } else if (!strcmp(options->name, BLOCK_OPT_BACKING_FILE)) {
+            image_filename = options->value.s;
+        }
+        options++;
+    }
+
+    cow_fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY,
+              0644);
+    if (cow_fd < 0)
+        return -1;
+    memset(&cow_header, 0, sizeof(cow_header));
+    cow_header.magic = cpu_to_be32(COW_MAGIC);
+    cow_header.version = cpu_to_be32(COW_VERSION);
+    if (image_filename) {
+        /* Note: if no file, we put a dummy mtime */
+        cow_header.mtime = cpu_to_be32(0);
+
+        fd = open(image_filename, O_RDONLY | O_BINARY);
+        if (fd < 0) {
+            close(cow_fd);
+            goto mtime_fail;
+        }
+        if (fstat(fd, &st) != 0) {
+            close(fd);
+            goto mtime_fail;
+        }
+        close(fd);
+        cow_header.mtime = cpu_to_be32(st.st_mtime);
+    mtime_fail:
+        pstrcpy(cow_header.backing_file, sizeof(cow_header.backing_file),
+                image_filename);
+    }
+    cow_header.sectorsize = cpu_to_be32(512);
+    cow_header.size = cpu_to_be64(image_sectors * 512);
+    write(cow_fd, &cow_header, sizeof(cow_header));
+    /* resize to include at least all the bitmap */
+    ftruncate(cow_fd, sizeof(cow_header) + ((image_sectors + 7) >> 3));
+    close(cow_fd);
+    return 0;
+}
+
+static void cow_flush(BlockDriverState *bs)
+{
+    BDRVCowState *s = bs->opaque;
+    qemu_fdatasync(s->fd);
+}
+
+static QEMUOptionParameter cow_create_options[] = {
+    {
+        .name = BLOCK_OPT_SIZE,
+        .type = OPT_SIZE,
+        .help = "Virtual disk size"
+    },
+    {
+        .name = BLOCK_OPT_BACKING_FILE,
+        .type = OPT_STRING,
+        .help = "File name of a base image"
+    },
+    { NULL }
+};
+
+static BlockDriver bdrv_cow = {
+    .format_name	= "cow",
+    .instance_size	= sizeof(BDRVCowState),
+    .bdrv_probe		= cow_probe,
+    .bdrv_open		= cow_open,
+    .bdrv_read		= cow_read,
+    .bdrv_write		= cow_write,
+    .bdrv_close		= cow_close,
+    .bdrv_create	= cow_create,
+    .bdrv_flush		= cow_flush,
+    .bdrv_is_allocated	= cow_is_allocated,
+
+    .create_options = cow_create_options,
+};
+
+static void bdrv_cow_init(void)
+{
+    bdrv_register(&bdrv_cow);
+}
+
+block_init(bdrv_cow_init);
+#endif

block/crypto.c

@@ -1,649 +0,0 @@
-/*
- * QEMU block full disk encryption
- *
- * Copyright (c) 2015-2016 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include "qemu/osdep.h"
-
-#include "block/block_int.h"
-#include "sysemu/block-backend.h"
-#include "crypto/block.h"
-#include "qapi/opts-visitor.h"
-#include "qapi-visit.h"
-#include "qapi/error.h"
-
-#define BLOCK_CRYPTO_OPT_LUKS_KEY_SECRET "key-secret"
-#define BLOCK_CRYPTO_OPT_LUKS_CIPHER_ALG "cipher-alg"
-#define BLOCK_CRYPTO_OPT_LUKS_CIPHER_MODE "cipher-mode"
-#define BLOCK_CRYPTO_OPT_LUKS_IVGEN_ALG "ivgen-alg"
-#define BLOCK_CRYPTO_OPT_LUKS_IVGEN_HASH_ALG "ivgen-hash-alg"
-#define BLOCK_CRYPTO_OPT_LUKS_HASH_ALG "hash-alg"
-#define BLOCK_CRYPTO_OPT_LUKS_ITER_TIME "iter-time"
-
-typedef struct BlockCrypto BlockCrypto;
-
-struct BlockCrypto {
-    QCryptoBlock *block;
-};
-
-
-static int block_crypto_probe_generic(QCryptoBlockFormat format,
-                                      const uint8_t *buf,
-                                      int buf_size,
-                                      const char *filename)
-{
-    if (qcrypto_block_has_format(format, buf, buf_size)) {
-        return 100;
-    } else {
-        return 0;
-    }
-}
-
-
-static ssize_t block_crypto_read_func(QCryptoBlock *block,
-                                      size_t offset,
-                                      uint8_t *buf,
-                                      size_t buflen,
-                                      void *opaque,
-                                      Error **errp)
-{
-    BlockDriverState *bs = opaque;
-    ssize_t ret;
-
-    ret = bdrv_pread(bs->file, offset, buf, buflen);
-    if (ret < 0) {
-        error_setg_errno(errp, -ret, "Could not read encryption header");
-        return ret;
-    }
-    return ret;
-}
-
-
-struct BlockCryptoCreateData {
-    const char *filename;
-    QemuOpts *opts;
-    BlockBackend *blk;
-    uint64_t size;
-};
-
-
-static ssize_t block_crypto_write_func(QCryptoBlock *block,
-                                       size_t offset,
-                                       const uint8_t *buf,
-                                       size_t buflen,
-                                       void *opaque,
-                                       Error **errp)
-{
-    struct BlockCryptoCreateData *data = opaque;
-    ssize_t ret;
-
-    ret = blk_pwrite(data->blk, offset, buf, buflen, 0);
-    if (ret < 0) {
-        error_setg_errno(errp, -ret, "Could not write encryption header");
-        return ret;
-    }
-    return ret;
-}
-
-
-static ssize_t block_crypto_init_func(QCryptoBlock *block,
-                                      size_t headerlen,
-                                      void *opaque,
-                                      Error **errp)
-{
-    struct BlockCryptoCreateData *data = opaque;
-    int ret;
-
-    /* User provided size should reflect amount of space made
-     * available to the guest, so we must take account of that
-     * which will be used by the crypto header
-     */
-    data->size += headerlen;
-
-    qemu_opt_set_number(data->opts, BLOCK_OPT_SIZE, data->size, &error_abort);
-    ret = bdrv_create_file(data->filename, data->opts, errp);
-    if (ret < 0) {
-        return -1;
-    }
-
-    data->blk = blk_new_open(data->filename, NULL, NULL,
-                             BDRV_O_RDWR | BDRV_O_PROTOCOL, errp);
-    if (!data->blk) {
-        return -1;
-    }
-
-    return 0;
-}
-
-
-static QemuOptsList block_crypto_runtime_opts_luks = {
-    .name = "crypto",
-    .head = QTAILQ_HEAD_INITIALIZER(block_crypto_runtime_opts_luks.head),
-    .desc = {
-        {
-            .name = BLOCK_CRYPTO_OPT_LUKS_KEY_SECRET,
-            .type = QEMU_OPT_STRING,
-            .help = "ID of the secret that provides the encryption key",
-        },
-        { /* end of list */ }
-    },
-};
-
-
-static QemuOptsList block_crypto_create_opts_luks = {
-    .name = "crypto",
-    .head = QTAILQ_HEAD_INITIALIZER(block_crypto_create_opts_luks.head),
-    .desc = {
-        {
-            .name = BLOCK_OPT_SIZE,
-            .type = QEMU_OPT_SIZE,
-            .help = "Virtual disk size"
-        },
-        {
-            .name = BLOCK_CRYPTO_OPT_LUKS_KEY_SECRET,
-            .type = QEMU_OPT_STRING,
-            .help = "ID of the secret that provides the encryption key",
-        },
-        {
-            .name = BLOCK_CRYPTO_OPT_LUKS_CIPHER_ALG,
-            .type = QEMU_OPT_STRING,
-            .help = "Name of encryption cipher algorithm",
-        },
-        {
-            .name = BLOCK_CRYPTO_OPT_LUKS_CIPHER_MODE,
-            .type = QEMU_OPT_STRING,
-            .help = "Name of encryption cipher mode",
-        },
-        {
-            .name = BLOCK_CRYPTO_OPT_LUKS_IVGEN_ALG,
-            .type = QEMU_OPT_STRING,
-            .help = "Name of IV generator algorithm",
-        },
-        {
-            .name = BLOCK_CRYPTO_OPT_LUKS_IVGEN_HASH_ALG,
-            .type = QEMU_OPT_STRING,
-            .help = "Name of IV generator hash algorithm",
-        },
-        {
-            .name = BLOCK_CRYPTO_OPT_LUKS_HASH_ALG,
-            .type = QEMU_OPT_STRING,
-            .help = "Name of encryption hash algorithm",
-        },
-        {
-            .name = BLOCK_CRYPTO_OPT_LUKS_ITER_TIME,
-            .type = QEMU_OPT_NUMBER,
-            .help = "Time to spend in PBKDF in milliseconds",
-        },
-        { /* end of list */ }
-    },
-};
-
-
-static QCryptoBlockOpenOptions *
-block_crypto_open_opts_init(QCryptoBlockFormat format,
-                            QemuOpts *opts,
-                            Error **errp)
-{
-    Visitor *v;
-    QCryptoBlockOpenOptions *ret = NULL;
-    Error *local_err = NULL;
-
-    ret = g_new0(QCryptoBlockOpenOptions, 1);
-    ret->format = format;
-
-    v = opts_visitor_new(opts);
-
-    visit_start_struct(v, NULL, NULL, 0, &local_err);
-    if (local_err) {
-        goto out;
-    }
-
-    switch (format) {
-    case Q_CRYPTO_BLOCK_FORMAT_LUKS:
-        visit_type_QCryptoBlockOptionsLUKS_members(
-            v, &ret->u.luks, &local_err);
-        break;
-
-    default:
-        error_setg(&local_err, "Unsupported block format %d", format);
-        break;
-    }
-    if (!local_err) {
-        visit_check_struct(v, &local_err);
-    }
-
-    visit_end_struct(v, NULL);
-
- out:
-    if (local_err) {
-        error_propagate(errp, local_err);
-        qapi_free_QCryptoBlockOpenOptions(ret);
-        ret = NULL;
-    }
-    visit_free(v);
-    return ret;
-}
-
-
-static QCryptoBlockCreateOptions *
-block_crypto_create_opts_init(QCryptoBlockFormat format,
-                              QemuOpts *opts,
-                              Error **errp)
-{
-    Visitor *v;
-    QCryptoBlockCreateOptions *ret = NULL;
-    Error *local_err = NULL;
-
-    ret = g_new0(QCryptoBlockCreateOptions, 1);
-    ret->format = format;
-
-    v = opts_visitor_new(opts);
-
-    visit_start_struct(v, NULL, NULL, 0, &local_err);
-    if (local_err) {
-        goto out;
-    }
-
-    switch (format) {
-    case Q_CRYPTO_BLOCK_FORMAT_LUKS:
-        visit_type_QCryptoBlockCreateOptionsLUKS_members(
-            v, &ret->u.luks, &local_err);
-        break;
-
-    default:
-        error_setg(&local_err, "Unsupported block format %d", format);
-        break;
-    }
-    if (!local_err) {
-        visit_check_struct(v, &local_err);
-    }
-
-    visit_end_struct(v, NULL);
-
- out:
-    if (local_err) {
-        error_propagate(errp, local_err);
-        qapi_free_QCryptoBlockCreateOptions(ret);
-        ret = NULL;
-    }
-    visit_free(v);
-    return ret;
-}
-
-
-static int block_crypto_open_generic(QCryptoBlockFormat format,
-                                     QemuOptsList *opts_spec,
-                                     BlockDriverState *bs,
-                                     QDict *options,
-                                     int flags,
-                                     Error **errp)
-{
-    BlockCrypto *crypto = bs->opaque;
-    QemuOpts *opts = NULL;
-    Error *local_err = NULL;
-    int ret = -EINVAL;
-    QCryptoBlockOpenOptions *open_opts = NULL;
-    unsigned int cflags = 0;
-
-    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_file,
-                               false, errp);
-    if (!bs->file) {
-        return -EINVAL;
-    }
-
-    opts = qemu_opts_create(opts_spec, NULL, 0, &error_abort);
-    qemu_opts_absorb_qdict(opts, options, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        goto cleanup;
-    }
-
-    open_opts = block_crypto_open_opts_init(format, opts, errp);
-    if (!open_opts) {
-        goto cleanup;
-    }
-
-    if (flags & BDRV_O_NO_IO) {
-        cflags |= QCRYPTO_BLOCK_OPEN_NO_IO;
-    }
-    crypto->block = qcrypto_block_open(open_opts,
-                                       block_crypto_read_func,
-                                       bs,
-                                       cflags,
-                                       errp);
-
-    if (!crypto->block) {
-        ret = -EIO;
-        goto cleanup;
-    }
-
-    bs->encrypted = true;
-    bs->valid_key = true;
-
-    ret = 0;
- cleanup:
-    qapi_free_QCryptoBlockOpenOptions(open_opts);
-    return ret;
-}
-
-
-static int block_crypto_create_generic(QCryptoBlockFormat format,
-                                       const char *filename,
-                                       QemuOpts *opts,
-                                       Error **errp)
-{
-    int ret = -EINVAL;
-    QCryptoBlockCreateOptions *create_opts = NULL;
-    QCryptoBlock *crypto = NULL;
-    struct BlockCryptoCreateData data = {
-        .size = ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
-                         BDRV_SECTOR_SIZE),
-        .opts = opts,
-        .filename = filename,
-    };
-
-    create_opts = block_crypto_create_opts_init(format, opts, errp);
-    if (!create_opts) {
-        return -1;
-    }
-
-    crypto = qcrypto_block_create(create_opts,
-                                  block_crypto_init_func,
-                                  block_crypto_write_func,
-                                  &data,
-                                  errp);
-
-    if (!crypto) {
-        ret = -EIO;
-        goto cleanup;
-    }
-
-    ret = 0;
- cleanup:
-    qcrypto_block_free(crypto);
-    blk_unref(data.blk);
-    qapi_free_QCryptoBlockCreateOptions(create_opts);
-    return ret;
-}
-
-static int block_crypto_truncate(BlockDriverState *bs, int64_t offset,
-                                 Error **errp)
-{
-    BlockCrypto *crypto = bs->opaque;
-    size_t payload_offset =
-        qcrypto_block_get_payload_offset(crypto->block);
-
-    offset += payload_offset;
-
-    return bdrv_truncate(bs->file, offset, errp);
-}
-
-static void block_crypto_close(BlockDriverState *bs)
-{
-    BlockCrypto *crypto = bs->opaque;
-    qcrypto_block_free(crypto->block);
-}
-
-
-#define BLOCK_CRYPTO_MAX_SECTORS 32
-
-static coroutine_fn int
-block_crypto_co_readv(BlockDriverState *bs, int64_t sector_num,
-                      int remaining_sectors, QEMUIOVector *qiov)
-{
-    BlockCrypto *crypto = bs->opaque;
-    int cur_nr_sectors; /* number of sectors in current iteration */
-    uint64_t bytes_done = 0;
-    uint8_t *cipher_data = NULL;
-    QEMUIOVector hd_qiov;
-    int ret = 0;
-    size_t payload_offset =
-        qcrypto_block_get_payload_offset(crypto->block) / 512;
-
-    qemu_iovec_init(&hd_qiov, qiov->niov);
-
-    /* Bounce buffer so we have a linear mem region for
-     * entire sector. XXX optimize so we avoid bounce
-     * buffer in case that qiov->niov == 1
-     */
-    cipher_data =
-        qemu_try_blockalign(bs->file->bs, MIN(BLOCK_CRYPTO_MAX_SECTORS * 512,
-                                              qiov->size));
-    if (cipher_data == NULL) {
-        ret = -ENOMEM;
-        goto cleanup;
-    }
-
-    while (remaining_sectors) {
-        cur_nr_sectors = remaining_sectors;
-
-        if (cur_nr_sectors > BLOCK_CRYPTO_MAX_SECTORS) {
-            cur_nr_sectors = BLOCK_CRYPTO_MAX_SECTORS;
-        }
-
-        qemu_iovec_reset(&hd_qiov);
-        qemu_iovec_add(&hd_qiov, cipher_data, cur_nr_sectors * 512);
-
-        ret = bdrv_co_readv(bs->file,
-                            payload_offset + sector_num,
-                            cur_nr_sectors, &hd_qiov);
-        if (ret < 0) {
-            goto cleanup;
-        }
-
-        if (qcrypto_block_decrypt(crypto->block,
-                                  sector_num,
-                                  cipher_data, cur_nr_sectors * 512,
-                                  NULL) < 0) {
-            ret = -EIO;
-            goto cleanup;
-        }
-
-        qemu_iovec_from_buf(qiov, bytes_done,
-                            cipher_data, cur_nr_sectors * 512);
-
-        remaining_sectors -= cur_nr_sectors;
-        sector_num += cur_nr_sectors;
-        bytes_done += cur_nr_sectors * 512;
-    }
-
- cleanup:
-    qemu_iovec_destroy(&hd_qiov);
-    qemu_vfree(cipher_data);
-
-    return ret;
-}
-
-
-static coroutine_fn int
-block_crypto_co_writev(BlockDriverState *bs, int64_t sector_num,
-                       int remaining_sectors, QEMUIOVector *qiov)
-{
-    BlockCrypto *crypto = bs->opaque;
-    int cur_nr_sectors; /* number of sectors in current iteration */
-    uint64_t bytes_done = 0;
-    uint8_t *cipher_data = NULL;
-    QEMUIOVector hd_qiov;
-    int ret = 0;
-    size_t payload_offset =
-        qcrypto_block_get_payload_offset(crypto->block) / 512;
-
-    qemu_iovec_init(&hd_qiov, qiov->niov);
-
-    /* Bounce buffer so we have a linear mem region for
-     * entire sector. XXX optimize so we avoid bounce
-     * buffer in case that qiov->niov == 1
-     */
-    cipher_data =
-        qemu_try_blockalign(bs->file->bs, MIN(BLOCK_CRYPTO_MAX_SECTORS * 512,
-                                              qiov->size));
-    if (cipher_data == NULL) {
-        ret = -ENOMEM;
-        goto cleanup;
-    }
-
-    while (remaining_sectors) {
-        cur_nr_sectors = remaining_sectors;
-
-        if (cur_nr_sectors > BLOCK_CRYPTO_MAX_SECTORS) {
-            cur_nr_sectors = BLOCK_CRYPTO_MAX_SECTORS;
-        }
-
-        qemu_iovec_to_buf(qiov, bytes_done,
-                          cipher_data, cur_nr_sectors * 512);
-
-        if (qcrypto_block_encrypt(crypto->block,
-                                  sector_num,
-                                  cipher_data, cur_nr_sectors * 512,
-                                  NULL) < 0) {
-            ret = -EIO;
-            goto cleanup;
-        }
-
-        qemu_iovec_reset(&hd_qiov);
-        qemu_iovec_add(&hd_qiov, cipher_data, cur_nr_sectors * 512);
-
-        ret = bdrv_co_writev(bs->file,
-                             payload_offset + sector_num,
-                             cur_nr_sectors, &hd_qiov);
-        if (ret < 0) {
-            goto cleanup;
-        }
-
-        remaining_sectors -= cur_nr_sectors;
-        sector_num += cur_nr_sectors;
-        bytes_done += cur_nr_sectors * 512;
-    }
-
- cleanup:
-    qemu_iovec_destroy(&hd_qiov);
-    qemu_vfree(cipher_data);
-
-    return ret;
-}
-
-
-static int64_t block_crypto_getlength(BlockDriverState *bs)
-{
-    BlockCrypto *crypto = bs->opaque;
-    int64_t len = bdrv_getlength(bs->file->bs);
-
-    ssize_t offset = qcrypto_block_get_payload_offset(crypto->block);
-
-    len -= offset;
-
-    return len;
-}
-
-
-static int block_crypto_probe_luks(const uint8_t *buf,
-                                   int buf_size,
-                                   const char *filename) {
-    return block_crypto_probe_generic(Q_CRYPTO_BLOCK_FORMAT_LUKS,
-                                      buf, buf_size, filename);
-}
-
-static int block_crypto_open_luks(BlockDriverState *bs,
-                                  QDict *options,
-                                  int flags,
-                                  Error **errp)
-{
-    return block_crypto_open_generic(Q_CRYPTO_BLOCK_FORMAT_LUKS,
-                                     &block_crypto_runtime_opts_luks,
-                                     bs, options, flags, errp);
-}
-
-static int block_crypto_create_luks(const char *filename,
-                                    QemuOpts *opts,
-                                    Error **errp)
-{
-    return block_crypto_create_generic(Q_CRYPTO_BLOCK_FORMAT_LUKS,
-                                       filename, opts, errp);
-}
-
-static int block_crypto_get_info_luks(BlockDriverState *bs,
-                                      BlockDriverInfo *bdi)
-{
-    BlockDriverInfo subbdi;
-    int ret;
-
-    ret = bdrv_get_info(bs->file->bs, &subbdi);
-    if (ret != 0) {
-        return ret;
-    }
-
-    bdi->unallocated_blocks_are_zero = false;
-    bdi->can_write_zeroes_with_unmap = false;
-    bdi->cluster_size = subbdi.cluster_size;
-
-    return 0;
-}
-
-static ImageInfoSpecific *
-block_crypto_get_specific_info_luks(BlockDriverState *bs)
-{
-    BlockCrypto *crypto = bs->opaque;
-    ImageInfoSpecific *spec_info;
-    QCryptoBlockInfo *info;
-
-    info = qcrypto_block_get_info(crypto->block, NULL);
-    if (!info) {
-        return NULL;
-    }
-    if (info->format != Q_CRYPTO_BLOCK_FORMAT_LUKS) {
-        qapi_free_QCryptoBlockInfo(info);
-        return NULL;
-    }
-
-    spec_info = g_new(ImageInfoSpecific, 1);
-    spec_info->type = IMAGE_INFO_SPECIFIC_KIND_LUKS;
-    spec_info->u.luks.data = g_new(QCryptoBlockInfoLUKS, 1);
-    *spec_info->u.luks.data = info->u.luks;
-
-    /* Blank out pointers we've just stolen to avoid double free */
-    memset(&info->u.luks, 0, sizeof(info->u.luks));
-
-    qapi_free_QCryptoBlockInfo(info);
-
-    return spec_info;
-}
-
-BlockDriver bdrv_crypto_luks = {
-    .format_name        = "luks",
-    .instance_size      = sizeof(BlockCrypto),
-    .bdrv_probe         = block_crypto_probe_luks,
-    .bdrv_open          = block_crypto_open_luks,
-    .bdrv_close         = block_crypto_close,
-    .bdrv_child_perm    = bdrv_format_default_perms,
-    .bdrv_create        = block_crypto_create_luks,
-    .bdrv_truncate      = block_crypto_truncate,
-    .create_opts        = &block_crypto_create_opts_luks,
-
-    .bdrv_co_readv      = block_crypto_co_readv,
-    .bdrv_co_writev     = block_crypto_co_writev,
-    .bdrv_getlength     = block_crypto_getlength,
-    .bdrv_get_info      = block_crypto_get_info_luks,
-    .bdrv_get_specific_info = block_crypto_get_specific_info_luks,
-};
-
-static void block_crypto_init(void)
-{
-    bdrv_register(&bdrv_crypto_luks);
-}
-
-block_init(block_crypto_init);

block/dirty-bitmap.c

@@ -1,535 +0,0 @@
-/*
- * Block Dirty Bitmap
- *
- * Copyright (c) 2016 Red Hat. Inc
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu-common.h"
-#include "trace.h"
-#include "block/block_int.h"
-#include "block/blockjob.h"
-
-/**
- * A BdrvDirtyBitmap can be in three possible states:
- * (1) successor is NULL and disabled is false: full r/w mode
- * (2) successor is NULL and disabled is true: read only mode ("disabled")
- * (3) successor is set: frozen mode.
- *     A frozen bitmap cannot be renamed, deleted, anonymized, cleared, set,
- *     or enabled. A frozen bitmap can only abdicate() or reclaim().
- */
-struct BdrvDirtyBitmap {
-    HBitmap *bitmap;            /* Dirty sector bitmap implementation */
-    HBitmap *meta;              /* Meta dirty bitmap */
-    BdrvDirtyBitmap *successor; /* Anonymous child; implies frozen status */
-    char *name;                 /* Optional non-empty unique ID */
-    int64_t size;               /* Size of the bitmap (Number of sectors) */
-    bool disabled;              /* Bitmap is read-only */
-    int active_iterators;       /* How many iterators are active */
-    QLIST_ENTRY(BdrvDirtyBitmap) list;
-};
-
-struct BdrvDirtyBitmapIter {
-    HBitmapIter hbi;
-    BdrvDirtyBitmap *bitmap;
-};
-
-BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs, const char *name)
-{
-    BdrvDirtyBitmap *bm;
-
-    assert(name);
-    QLIST_FOREACH(bm, &bs->dirty_bitmaps, list) {
-        if (bm->name && !strcmp(name, bm->name)) {
-            return bm;
-        }
-    }
-    return NULL;
-}
-
-void bdrv_dirty_bitmap_make_anon(BdrvDirtyBitmap *bitmap)
-{
-    assert(!bdrv_dirty_bitmap_frozen(bitmap));
-    g_free(bitmap->name);
-    bitmap->name = NULL;
-}
-
-BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs,
-                                          uint32_t granularity,
-                                          const char *name,
-                                          Error **errp)
-{
-    int64_t bitmap_size;
-    BdrvDirtyBitmap *bitmap;
-    uint32_t sector_granularity;
-
-    assert((granularity & (granularity - 1)) == 0);
-
-    if (name && bdrv_find_dirty_bitmap(bs, name)) {
-        error_setg(errp, "Bitmap already exists: %s", name);
-        return NULL;
-    }
-    sector_granularity = granularity >> BDRV_SECTOR_BITS;
-    assert(sector_granularity);
-    bitmap_size = bdrv_nb_sectors(bs);
-    if (bitmap_size < 0) {
-        error_setg_errno(errp, -bitmap_size, "could not get length of device");
-        errno = -bitmap_size;
-        return NULL;
-    }
-    bitmap = g_new0(BdrvDirtyBitmap, 1);
-    bitmap->bitmap = hbitmap_alloc(bitmap_size, ctz32(sector_granularity));
-    bitmap->size = bitmap_size;
-    bitmap->name = g_strdup(name);
-    bitmap->disabled = false;
-    QLIST_INSERT_HEAD(&bs->dirty_bitmaps, bitmap, list);
-    return bitmap;
-}
-
-/* bdrv_create_meta_dirty_bitmap
- *
- * Create a meta dirty bitmap that tracks the changes of bits in @bitmap. I.e.
- * when a dirty status bit in @bitmap is changed (either from reset to set or
- * the other way around), its respective meta dirty bitmap bit will be marked
- * dirty as well.
- *
- * @bitmap: the block dirty bitmap for which to create a meta dirty bitmap.
- * @chunk_size: how many bytes of bitmap data does each bit in the meta bitmap
- * track.
- */
-void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap,
-                                   int chunk_size)
-{
-    assert(!bitmap->meta);
-    bitmap->meta = hbitmap_create_meta(bitmap->bitmap,
-                                       chunk_size * BITS_PER_BYTE);
-}
-
-void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap)
-{
-    assert(bitmap->meta);
-    hbitmap_free_meta(bitmap->bitmap);
-    bitmap->meta = NULL;
-}
-
-int bdrv_dirty_bitmap_get_meta(BlockDriverState *bs,
-                               BdrvDirtyBitmap *bitmap, int64_t sector,
-                               int nb_sectors)
-{
-    uint64_t i;
-    int sectors_per_bit = 1 << hbitmap_granularity(bitmap->meta);
-
-    /* To optimize: we can make hbitmap to internally check the range in a
-     * coarse level, or at least do it word by word. */
-    for (i = sector; i < sector + nb_sectors; i += sectors_per_bit) {
-        if (hbitmap_get(bitmap->meta, i)) {
-            return true;
-        }
-    }
-    return false;
-}
-
-void bdrv_dirty_bitmap_reset_meta(BlockDriverState *bs,
-                                  BdrvDirtyBitmap *bitmap, int64_t sector,
-                                  int nb_sectors)
-{
-    hbitmap_reset(bitmap->meta, sector, nb_sectors);
-}
-
-int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap)
-{
-    return bitmap->size;
-}
-
-const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap)
-{
-    return bitmap->name;
-}
-
-bool bdrv_dirty_bitmap_frozen(BdrvDirtyBitmap *bitmap)
-{
-    return bitmap->successor;
-}
-
-bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap)
-{
-    return !(bitmap->disabled || bitmap->successor);
-}
-
-DirtyBitmapStatus bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap)
-{
-    if (bdrv_dirty_bitmap_frozen(bitmap)) {
-        return DIRTY_BITMAP_STATUS_FROZEN;
-    } else if (!bdrv_dirty_bitmap_enabled(bitmap)) {
-        return DIRTY_BITMAP_STATUS_DISABLED;
-    } else {
-        return DIRTY_BITMAP_STATUS_ACTIVE;
-    }
-}
-
-/**
- * Create a successor bitmap destined to replace this bitmap after an operation.
- * Requires that the bitmap is not frozen and has no successor.
- */
-int bdrv_dirty_bitmap_create_successor(BlockDriverState *bs,
-                                       BdrvDirtyBitmap *bitmap, Error **errp)
-{
-    uint64_t granularity;
-    BdrvDirtyBitmap *child;
-
-    if (bdrv_dirty_bitmap_frozen(bitmap)) {
-        error_setg(errp, "Cannot create a successor for a bitmap that is "
-                   "currently frozen");
-        return -1;
-    }
-    assert(!bitmap->successor);
-
-    /* Create an anonymous successor */
-    granularity = bdrv_dirty_bitmap_granularity(bitmap);
-    child = bdrv_create_dirty_bitmap(bs, granularity, NULL, errp);
-    if (!child) {
-        return -1;
-    }
-
-    /* Successor will be on or off based on our current state. */
-    child->disabled = bitmap->disabled;
-
-    /* Install the successor and freeze the parent */
-    bitmap->successor = child;
-    return 0;
-}
-
-/**
- * For a bitmap with a successor, yield our name to the successor,
- * delete the old bitmap, and return a handle to the new bitmap.
- */
-BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BlockDriverState *bs,
-                                            BdrvDirtyBitmap *bitmap,
-                                            Error **errp)
-{
-    char *name;
-    BdrvDirtyBitmap *successor = bitmap->successor;
-
-    if (successor == NULL) {
-        error_setg(errp, "Cannot relinquish control if "
-                   "there's no successor present");
-        return NULL;
-    }
-
-    name = bitmap->name;
-    bitmap->name = NULL;
-    successor->name = name;
-    bitmap->successor = NULL;
-    bdrv_release_dirty_bitmap(bs, bitmap);
-
-    return successor;
-}
-
-/**
- * In cases of failure where we can no longer safely delete the parent,
- * we may wish to re-join the parent and child/successor.
- * The merged parent will be un-frozen, but not explicitly re-enabled.
- */
-BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs,
-                                           BdrvDirtyBitmap *parent,
-                                           Error **errp)
-{
-    BdrvDirtyBitmap *successor = parent->successor;
-
-    if (!successor) {
-        error_setg(errp, "Cannot reclaim a successor when none is present");
-        return NULL;
-    }
-
-    if (!hbitmap_merge(parent->bitmap, successor->bitmap)) {
-        error_setg(errp, "Merging of parent and successor bitmap failed");
-        return NULL;
-    }
-    bdrv_release_dirty_bitmap(bs, successor);
-    parent->successor = NULL;
-
-    return parent;
-}
-
-/**
- * Truncates _all_ bitmaps attached to a BDS.
- */
-void bdrv_dirty_bitmap_truncate(BlockDriverState *bs)
-{
-    BdrvDirtyBitmap *bitmap;
-    uint64_t size = bdrv_nb_sectors(bs);
-
-    QLIST_FOREACH(bitmap, &bs->dirty_bitmaps, list) {
-        assert(!bdrv_dirty_bitmap_frozen(bitmap));
-        assert(!bitmap->active_iterators);
-        hbitmap_truncate(bitmap->bitmap, size);
-        bitmap->size = size;
-    }
-}
-
-static void bdrv_do_release_matching_dirty_bitmap(BlockDriverState *bs,
-                                                  BdrvDirtyBitmap *bitmap,
-                                                  bool only_named)
-{
-    BdrvDirtyBitmap *bm, *next;
-    QLIST_FOREACH_SAFE(bm, &bs->dirty_bitmaps, list, next) {
-        if ((!bitmap || bm == bitmap) && (!only_named || bm->name)) {
-            assert(!bm->active_iterators);
-            assert(!bdrv_dirty_bitmap_frozen(bm));
-            assert(!bm->meta);
-            QLIST_REMOVE(bm, list);
-            hbitmap_free(bm->bitmap);
-            g_free(bm->name);
-            g_free(bm);
-
-            if (bitmap) {
-                return;
-            }
-        }
-    }
-    if (bitmap) {
-        abort();
-    }
-}
-
-void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap)
-{
-    bdrv_do_release_matching_dirty_bitmap(bs, bitmap, false);
-}
-
-/**
- * Release all named dirty bitmaps attached to a BDS (for use in bdrv_close()).
- * There must not be any frozen bitmaps attached.
- */
-void bdrv_release_named_dirty_bitmaps(BlockDriverState *bs)
-{
-    bdrv_do_release_matching_dirty_bitmap(bs, NULL, true);
-}
-
-void bdrv_disable_dirty_bitmap(BdrvDirtyBitmap *bitmap)
-{
-    assert(!bdrv_dirty_bitmap_frozen(bitmap));
-    bitmap->disabled = true;
-}
-
-void bdrv_enable_dirty_bitmap(BdrvDirtyBitmap *bitmap)
-{
-    assert(!bdrv_dirty_bitmap_frozen(bitmap));
-    bitmap->disabled = false;
-}
-
-BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs)
-{
-    BdrvDirtyBitmap *bm;
-    BlockDirtyInfoList *list = NULL;
-    BlockDirtyInfoList **plist = &list;
-
-    QLIST_FOREACH(bm, &bs->dirty_bitmaps, list) {
-        BlockDirtyInfo *info = g_new0(BlockDirtyInfo, 1);
-        BlockDirtyInfoList *entry = g_new0(BlockDirtyInfoList, 1);
-        info->count = bdrv_get_dirty_count(bm);
-        info->granularity = bdrv_dirty_bitmap_granularity(bm);
-        info->has_name = !!bm->name;
-        info->name = g_strdup(bm->name);
-        info->status = bdrv_dirty_bitmap_status(bm);
-        entry->value = info;
-        *plist = entry;
-        plist = &entry->next;
-    }
-
-    return list;
-}
-
-int bdrv_get_dirty(BlockDriverState *bs, BdrvDirtyBitmap *bitmap,
-                   int64_t sector)
-{
-    if (bitmap) {
-        return hbitmap_get(bitmap->bitmap, sector);
-    } else {
-        return 0;
-    }
-}
-
-/**
- * Chooses a default granularity based on the existing cluster size,
- * but clamped between [4K, 64K]. Defaults to 64K in the case that there
- * is no cluster size information available.
- */
-uint32_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs)
-{
-    BlockDriverInfo bdi;
-    uint32_t granularity;
-
-    if (bdrv_get_info(bs, &bdi) >= 0 && bdi.cluster_size > 0) {
-        granularity = MAX(4096, bdi.cluster_size);
-        granularity = MIN(65536, granularity);
-    } else {
-        granularity = 65536;
-    }
-
-    return granularity;
-}
-
-uint32_t bdrv_dirty_bitmap_granularity(BdrvDirtyBitmap *bitmap)
-{
-    return BDRV_SECTOR_SIZE << hbitmap_granularity(bitmap->bitmap);
-}
-
-uint32_t bdrv_dirty_bitmap_meta_granularity(BdrvDirtyBitmap *bitmap)
-{
-    return BDRV_SECTOR_SIZE << hbitmap_granularity(bitmap->meta);
-}
-
-BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap,
-                                         uint64_t first_sector)
-{
-    BdrvDirtyBitmapIter *iter = g_new(BdrvDirtyBitmapIter, 1);
-    hbitmap_iter_init(&iter->hbi, bitmap->bitmap, first_sector);
-    iter->bitmap = bitmap;
-    bitmap->active_iterators++;
-    return iter;
-}
-
-BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap)
-{
-    BdrvDirtyBitmapIter *iter = g_new(BdrvDirtyBitmapIter, 1);
-    hbitmap_iter_init(&iter->hbi, bitmap->meta, 0);
-    iter->bitmap = bitmap;
-    bitmap->active_iterators++;
-    return iter;
-}
-
-void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter)
-{
-    if (!iter) {
-        return;
-    }
-    assert(iter->bitmap->active_iterators > 0);
-    iter->bitmap->active_iterators--;
-    g_free(iter);
-}
-
-int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter)
-{
-    return hbitmap_iter_next(&iter->hbi);
-}
-
-void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap,
-                           int64_t cur_sector, int64_t nr_sectors)
-{
-    assert(bdrv_dirty_bitmap_enabled(bitmap));
-    hbitmap_set(bitmap->bitmap, cur_sector, nr_sectors);
-}
-
-void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap,
-                             int64_t cur_sector, int64_t nr_sectors)
-{
-    assert(bdrv_dirty_bitmap_enabled(bitmap));
-    hbitmap_reset(bitmap->bitmap, cur_sector, nr_sectors);
-}
-
-void bdrv_clear_dirty_bitmap(BdrvDirtyBitmap *bitmap, HBitmap **out)
-{
-    assert(bdrv_dirty_bitmap_enabled(bitmap));
-    if (!out) {
-        hbitmap_reset_all(bitmap->bitmap);
-    } else {
-        HBitmap *backup = bitmap->bitmap;
-        bitmap->bitmap = hbitmap_alloc(bitmap->size,
-                                       hbitmap_granularity(backup));
-        *out = backup;
-    }
-}
-
-void bdrv_undo_clear_dirty_bitmap(BdrvDirtyBitmap *bitmap, HBitmap *in)
-{
-    HBitmap *tmp = bitmap->bitmap;
-    assert(bdrv_dirty_bitmap_enabled(bitmap));
-    bitmap->bitmap = in;
-    hbitmap_free(tmp);
-}
-
-uint64_t bdrv_dirty_bitmap_serialization_size(const BdrvDirtyBitmap *bitmap,
-                                              uint64_t start, uint64_t count)
-{
-    return hbitmap_serialization_size(bitmap->bitmap, start, count);
-}
-
-uint64_t bdrv_dirty_bitmap_serialization_align(const BdrvDirtyBitmap *bitmap)
-{
-    return hbitmap_serialization_granularity(bitmap->bitmap);
-}
-
-void bdrv_dirty_bitmap_serialize_part(const BdrvDirtyBitmap *bitmap,
-                                      uint8_t *buf, uint64_t start,
-                                      uint64_t count)
-{
-    hbitmap_serialize_part(bitmap->bitmap, buf, start, count);
-}
-
-void bdrv_dirty_bitmap_deserialize_part(BdrvDirtyBitmap *bitmap,
-                                        uint8_t *buf, uint64_t start,
-                                        uint64_t count, bool finish)
-{
-    hbitmap_deserialize_part(bitmap->bitmap, buf, start, count, finish);
-}
-
-void bdrv_dirty_bitmap_deserialize_zeroes(BdrvDirtyBitmap *bitmap,
-                                          uint64_t start, uint64_t count,
-                                          bool finish)
-{
-    hbitmap_deserialize_zeroes(bitmap->bitmap, start, count, finish);
-}
-
-void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap)
-{
-    hbitmap_deserialize_finish(bitmap->bitmap);
-}
-
-void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector,
-                    int64_t nr_sectors)
-{
-    BdrvDirtyBitmap *bitmap;
-    QLIST_FOREACH(bitmap, &bs->dirty_bitmaps, list) {
-        if (!bdrv_dirty_bitmap_enabled(bitmap)) {
-            continue;
-        }
-        hbitmap_set(bitmap->bitmap, cur_sector, nr_sectors);
-    }
-}
-
-/**
- * Advance a BdrvDirtyBitmapIter to an arbitrary offset.
- */
-void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *iter, int64_t sector_num)
-{
-    hbitmap_iter_init(&iter->hbi, iter->hbi.hb, sector_num);
-}
-
-int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap)
-{
-    return hbitmap_count(bitmap->bitmap);
-}
-
-int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap)
-{
-    return hbitmap_count(bitmap->meta);
-}

block/dmg-bz2.c

@@ -1,61 +0,0 @@
-/*
- * DMG bzip2 uncompression
- *
- * Copyright (c) 2004 Johannes E. Schindelin
- * Copyright (c) 2016 Red Hat, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "dmg.h"
-#include <bzlib.h>
-
-static int dmg_uncompress_bz2_do(char *next_in, unsigned int avail_in,
-                                 char *next_out, unsigned int avail_out)
-{
-    int ret;
-    uint64_t total_out;
-    bz_stream bzstream = {};
-
-    ret = BZ2_bzDecompressInit(&bzstream, 0, 0);
-    if (ret != BZ_OK) {
-        return -1;
-    }
-    bzstream.next_in = next_in;
-    bzstream.avail_in = avail_in;
-    bzstream.next_out = next_out;
-    bzstream.avail_out = avail_out;
-    ret = BZ2_bzDecompress(&bzstream);
-    total_out = ((uint64_t)bzstream.total_out_hi32 << 32) +
-                bzstream.total_out_lo32;
-    BZ2_bzDecompressEnd(&bzstream);
-    if (ret != BZ_STREAM_END ||
-        total_out != avail_out) {
-        return -1;
-    }
-    return 0;
-}
-
-__attribute__((constructor))
-static void dmg_bz2_init(void)
-{
-    assert(!dmg_uncompress_bz2);
-    dmg_uncompress_bz2 = dmg_uncompress_bz2_do;
-}

block/dmg.c

@@ -21,689 +21,276 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-#include "qemu/osdep.h"
-#include "qapi/error.h"
 #include "qemu-common.h"
-#include "block/block_int.h"
-#include "qemu/bswap.h"
-#include "qemu/error-report.h"
-#include "qemu/module.h"
-#include "dmg.h"
+#include "block_int.h"
+#include "bswap.h"
+#include "module.h"
+#include <zlib.h>
 
-int (*dmg_uncompress_bz2)(char *next_in, unsigned int avail_in,
-                          char *next_out, unsigned int avail_out);
+typedef struct BDRVDMGState {
+    int fd;
 
-enum {
-    /* Limit chunk sizes to prevent unreasonable amounts of memory being used
-     * or truncating when converting to 32-bit types
-     */
-    DMG_LENGTHS_MAX = 64 * 1024 * 1024, /* 64 MB */
-    DMG_SECTORCOUNTS_MAX = DMG_LENGTHS_MAX / 512,
-};
+    /* each chunk contains a certain number of sectors,
+     * offsets[i] is the offset in the .dmg file,
+     * lengths[i] is the length of the compressed chunk,
+     * sectors[i] is the sector beginning at offsets[i],
+     * sectorcounts[i] is the number of sectors in that chunk,
+     * the sectors array is ordered
+     * 0<=i<n_chunks */
+
+    uint32_t n_chunks;
+    uint32_t* types;
+    uint64_t* offsets;
+    uint64_t* lengths;
+    uint64_t* sectors;
+    uint64_t* sectorcounts;
+    uint32_t current_chunk;
+    uint8_t *compressed_chunk;
+    uint8_t *uncompressed_chunk;
+    z_stream zstream;
+} BDRVDMGState;
 
 static int dmg_probe(const uint8_t *buf, int buf_size, const char *filename)
 {
-    int len;
-
-    if (!filename) {
-        return 0;
-    }
-
-    len = strlen(filename);
-    if (len > 4 && !strcmp(filename + len - 4, ".dmg")) {
-        return 2;
-    }
+    int len=strlen(filename);
+    if(len>4 && !strcmp(filename+len-4,".dmg"))
+	return 2;
     return 0;
 }
 
-static int read_uint64(BlockDriverState *bs, int64_t offset, uint64_t *result)
+static off_t read_off(int fd)
 {
-    uint64_t buffer;
-    int ret;
-
-    ret = bdrv_pread(bs->file, offset, &buffer, 8);
-    if (ret < 0) {
-        return ret;
-    }
-
-    *result = be64_to_cpu(buffer);
-    return 0;
+	uint64_t buffer;
+	if(read(fd,&buffer,8)<8)
+		return 0;
+	return be64_to_cpu(buffer);
 }
 
-static int read_uint32(BlockDriverState *bs, int64_t offset, uint32_t *result)
+static off_t read_uint32(int fd)
 {
-    uint32_t buffer;
-    int ret;
-
-    ret = bdrv_pread(bs->file, offset, &buffer, 4);
-    if (ret < 0) {
-        return ret;
-    }
-
-    *result = be32_to_cpu(buffer);
-    return 0;
+	uint32_t buffer;
+	if(read(fd,&buffer,4)<4)
+		return 0;
+	return be32_to_cpu(buffer);
 }
 
-static inline uint64_t buff_read_uint64(const uint8_t *buffer, int64_t offset)
-{
-    return be64_to_cpu(*(uint64_t *)&buffer[offset]);
-}
-
-static inline uint32_t buff_read_uint32(const uint8_t *buffer, int64_t offset)
-{
-    return be32_to_cpu(*(uint32_t *)&buffer[offset]);
-}
-
-/* Increase max chunk sizes, if necessary.  This function is used to calculate
- * the buffer sizes needed for compressed/uncompressed chunk I/O.
- */
-static void update_max_chunk_size(BDRVDMGState *s, uint32_t chunk,
-                                  uint32_t *max_compressed_size,
-                                  uint32_t *max_sectors_per_chunk)
-{
-    uint32_t compressed_size = 0;
-    uint32_t uncompressed_sectors = 0;
-
-    switch (s->types[chunk]) {
-    case 0x80000005: /* zlib compressed */
-    case 0x80000006: /* bzip2 compressed */
-        compressed_size = s->lengths[chunk];
-        uncompressed_sectors = s->sectorcounts[chunk];
-        break;
-    case 1: /* copy */
-        uncompressed_sectors = (s->lengths[chunk] + 511) / 512;
-        break;
-    case 2: /* zero */
-        /* as the all-zeroes block may be large, it is treated specially: the
-         * sector is not copied from a large buffer, a simple memset is used
-         * instead. Therefore uncompressed_sectors does not need to be set. */
-        break;
-    }
-
-    if (compressed_size > *max_compressed_size) {
-        *max_compressed_size = compressed_size;
-    }
-    if (uncompressed_sectors > *max_sectors_per_chunk) {
-        *max_sectors_per_chunk = uncompressed_sectors;
-    }
-}
-
-static int64_t dmg_find_koly_offset(BdrvChild *file, Error **errp)
-{
-    BlockDriverState *file_bs = file->bs;
-    int64_t length;
-    int64_t offset = 0;
-    uint8_t buffer[515];
-    int i, ret;
-
-    /* bdrv_getlength returns a multiple of block size (512), rounded up. Since
-     * dmg images can have odd sizes, try to look for the "koly" magic which
-     * marks the begin of the UDIF trailer (512 bytes). This magic can be found
-     * in the last 511 bytes of the second-last sector or the first 4 bytes of
-     * the last sector (search space: 515 bytes) */
-    length = bdrv_getlength(file_bs);
-    if (length < 0) {
-        error_setg_errno(errp, -length,
-            "Failed to get file size while reading UDIF trailer");
-        return length;
-    } else if (length < 512) {
-        error_setg(errp, "dmg file must be at least 512 bytes long");
-        return -EINVAL;
-    }
-    if (length > 511 + 512) {
-        offset = length - 511 - 512;
-    }
-    length = length < 515 ? length : 515;
-    ret = bdrv_pread(file, offset, buffer, length);
-    if (ret < 0) {
-        error_setg_errno(errp, -ret, "Failed while reading UDIF trailer");
-        return ret;
-    }
-    for (i = 0; i < length - 3; i++) {
-        if (buffer[i] == 'k' && buffer[i+1] == 'o' &&
-            buffer[i+2] == 'l' && buffer[i+3] == 'y') {
-            return offset + i;
-        }
-    }
-    error_setg(errp, "Could not locate UDIF trailer in dmg file");
-    return -EINVAL;
-}
-
-/* used when building the sector table */
-typedef struct DmgHeaderState {
-    /* used internally by dmg_read_mish_block to remember offsets of blocks
-     * across calls */
-    uint64_t data_fork_offset;
-    /* exported for dmg_open */
-    uint32_t max_compressed_size;
-    uint32_t max_sectors_per_chunk;
-} DmgHeaderState;
-
-static bool dmg_is_known_block_type(uint32_t entry_type)
-{
-    switch (entry_type) {
-    case 0x00000001:    /* uncompressed */
-    case 0x00000002:    /* zeroes */
-    case 0x80000005:    /* zlib */
-        return true;
-    case 0x80000006:    /* bzip2 */
-        return !!dmg_uncompress_bz2;
-    default:
-        return false;
-    }
-}
-
-static int dmg_read_mish_block(BDRVDMGState *s, DmgHeaderState *ds,
-                               uint8_t *buffer, uint32_t count)
-{
-    uint32_t type, i;
-    int ret;
-    size_t new_size;
-    uint32_t chunk_count;
-    int64_t offset = 0;
-    uint64_t data_offset;
-    uint64_t in_offset = ds->data_fork_offset;
-    uint64_t out_offset;
-
-    type = buff_read_uint32(buffer, offset);
-    /* skip data that is not a valid MISH block (invalid magic or too small) */
-    if (type != 0x6d697368 || count < 244) {
-        /* assume success for now */
-        return 0;
-    }
-
-    /* chunk offsets are relative to this sector number */
-    out_offset = buff_read_uint64(buffer, offset + 8);
-
-    /* location in data fork for (compressed) blob (in bytes) */
-    data_offset = buff_read_uint64(buffer, offset + 0x18);
-    in_offset += data_offset;
-
-    /* move to begin of chunk entries */
-    offset += 204;
-
-    chunk_count = (count - 204) / 40;
-    new_size = sizeof(uint64_t) * (s->n_chunks + chunk_count);
-    s->types = g_realloc(s->types, new_size / 2);
-    s->offsets = g_realloc(s->offsets, new_size);
-    s->lengths = g_realloc(s->lengths, new_size);
-    s->sectors = g_realloc(s->sectors, new_size);
-    s->sectorcounts = g_realloc(s->sectorcounts, new_size);
-
-    for (i = s->n_chunks; i < s->n_chunks + chunk_count; i++) {
-        s->types[i] = buff_read_uint32(buffer, offset);
-        if (!dmg_is_known_block_type(s->types[i])) {
-            chunk_count--;
-            i--;
-            offset += 40;
-            continue;
-        }
-
-        /* sector number */
-        s->sectors[i] = buff_read_uint64(buffer, offset + 8);
-        s->sectors[i] += out_offset;
-
-        /* sector count */
-        s->sectorcounts[i] = buff_read_uint64(buffer, offset + 0x10);
-
-        /* all-zeroes sector (type 2) does not need to be "uncompressed" and can
-         * therefore be unbounded. */
-        if (s->types[i] != 2 && s->sectorcounts[i] > DMG_SECTORCOUNTS_MAX) {
-            error_report("sector count %" PRIu64 " for chunk %" PRIu32
-                         " is larger than max (%u)",
-                         s->sectorcounts[i], i, DMG_SECTORCOUNTS_MAX);
-            ret = -EINVAL;
-            goto fail;
-        }
-
-        /* offset in (compressed) data fork */
-        s->offsets[i] = buff_read_uint64(buffer, offset + 0x18);
-        s->offsets[i] += in_offset;
-
-        /* length in (compressed) data fork */
-        s->lengths[i] = buff_read_uint64(buffer, offset + 0x20);
-
-        if (s->lengths[i] > DMG_LENGTHS_MAX) {
-            error_report("length %" PRIu64 " for chunk %" PRIu32
-                         " is larger than max (%u)",
-                         s->lengths[i], i, DMG_LENGTHS_MAX);
-            ret = -EINVAL;
-            goto fail;
-        }
-
-        update_max_chunk_size(s, i, &ds->max_compressed_size,
-                              &ds->max_sectors_per_chunk);
-        offset += 40;
-    }
-    s->n_chunks += chunk_count;
-    return 0;
-
-fail:
-    return ret;
-}
-
-static int dmg_read_resource_fork(BlockDriverState *bs, DmgHeaderState *ds,
-                                  uint64_t info_begin, uint64_t info_length)
+static int dmg_open(BlockDriverState *bs, const char *filename, int flags)
 {
     BDRVDMGState *s = bs->opaque;
-    int ret;
-    uint32_t count, rsrc_data_offset;
-    uint8_t *buffer = NULL;
-    uint64_t info_end;
-    uint64_t offset;
-
-    /* read offset from begin of resource fork (info_begin) to resource data */
-    ret = read_uint32(bs, info_begin, &rsrc_data_offset);
-    if (ret < 0) {
-        goto fail;
-    } else if (rsrc_data_offset > info_length) {
-        ret = -EINVAL;
-        goto fail;
-    }
-
-    /* read length of resource data */
-    ret = read_uint32(bs, info_begin + 8, &count);
-    if (ret < 0) {
-        goto fail;
-    } else if (count == 0 || rsrc_data_offset + count > info_length) {
-        ret = -EINVAL;
-        goto fail;
-    }
-
-    /* begin of resource data (consisting of one or more resources) */
-    offset = info_begin + rsrc_data_offset;
-
-    /* end of resource data (there is possibly a following resource map
-     * which will be ignored). */
-    info_end = offset + count;
-
-    /* read offsets (mish blocks) from one or more resources in resource data */
-    while (offset < info_end) {
-        /* size of following resource */
-        ret = read_uint32(bs, offset, &count);
-        if (ret < 0) {
-            goto fail;
-        } else if (count == 0 || count > info_end - offset) {
-            ret = -EINVAL;
-            goto fail;
-        }
-        offset += 4;
-
-        buffer = g_realloc(buffer, count);
-        ret = bdrv_pread(bs->file, offset, buffer, count);
-        if (ret < 0) {
-            goto fail;
-        }
-
-        ret = dmg_read_mish_block(s, ds, buffer, count);
-        if (ret < 0) {
-            goto fail;
-        }
-        /* advance offset by size of resource */
-        offset += count;
-    }
-    ret = 0;
-
-fail:
-    g_free(buffer);
-    return ret;
-}
-
-static int dmg_read_plist_xml(BlockDriverState *bs, DmgHeaderState *ds,
-                              uint64_t info_begin, uint64_t info_length)
-{
-    BDRVDMGState *s = bs->opaque;
-    int ret;
-    uint8_t *buffer = NULL;
-    char *data_begin, *data_end;
-
-    /* Have at least some length to avoid NULL for g_malloc. Attempt to set a
-     * safe upper cap on the data length. A test sample had a XML length of
-     * about 1 MiB. */
-    if (info_length == 0 || info_length > 16 * 1024 * 1024) {
-        ret = -EINVAL;
-        goto fail;
-    }
-
-    buffer = g_malloc(info_length + 1);
-    buffer[info_length] = '\0';
-    ret = bdrv_pread(bs->file, info_begin, buffer, info_length);
-    if (ret != info_length) {
-        ret = -EINVAL;
-        goto fail;
-    }
-
-    /* look for <data>...</data>. The data is 284 (0x11c) bytes after base64
-     * decode. The actual data element has 431 (0x1af) bytes which includes tabs
-     * and line feeds. */
-    data_end = (char *)buffer;
-    while ((data_begin = strstr(data_end, "<data>")) != NULL) {
-        guchar *mish;
-        gsize out_len = 0;
-
-        data_begin += 6;
-        data_end = strstr(data_begin, "</data>");
-        /* malformed XML? */
-        if (data_end == NULL) {
-            ret = -EINVAL;
-            goto fail;
-        }
-        *data_end++ = '\0';
-        mish = g_base64_decode(data_begin, &out_len);
-        ret = dmg_read_mish_block(s, ds, mish, (uint32_t)out_len);
-        g_free(mish);
-        if (ret < 0) {
-            goto fail;
-        }
-    }
-    ret = 0;
-
-fail:
-    g_free(buffer);
-    return ret;
-}
-
-static int dmg_open(BlockDriverState *bs, QDict *options, int flags,
-                    Error **errp)
-{
-    BDRVDMGState *s = bs->opaque;
-    DmgHeaderState ds;
-    uint64_t rsrc_fork_offset, rsrc_fork_length;
-    uint64_t plist_xml_offset, plist_xml_length;
-    int64_t offset;
-    int ret;
-
-    bs->file = bdrv_open_child(NULL, options, "file", bs, &child_file,
-                               false, errp);
-    if (!bs->file) {
-        return -EINVAL;
-    }
-
-    ret = bdrv_set_read_only(bs, true, errp);
-    if (ret < 0) {
-        return ret;
-    }
-
-    block_module_load_one("dmg-bz2");
+    off_t info_begin,info_end,last_in_offset,last_out_offset;
+    uint32_t count;
+    uint32_t max_compressed_size=1,max_sectors_per_chunk=1,i;
 
+    s->fd = open(filename, O_RDONLY | O_BINARY);
+    if (s->fd < 0)
+        return -errno;
+    bs->read_only = 1;
     s->n_chunks = 0;
     s->offsets = s->lengths = s->sectors = s->sectorcounts = NULL;
-    /* used by dmg_read_mish_block to keep track of the current I/O position */
-    ds.data_fork_offset = 0;
-    ds.max_compressed_size = 1;
-    ds.max_sectors_per_chunk = 1;
 
-    /* locate the UDIF trailer */
-    offset = dmg_find_koly_offset(bs->file, errp);
-    if (offset < 0) {
-        ret = offset;
+    /* read offset of info blocks */
+    if(lseek(s->fd,-0x1d8,SEEK_END)<0) {
         goto fail;
     }
 
-    /* offset of data fork (DataForkOffset) */
-    ret = read_uint64(bs, offset + 0x18, &ds.data_fork_offset);
-    if (ret < 0) {
-        goto fail;
-    } else if (ds.data_fork_offset > offset) {
-        ret = -EINVAL;
-        goto fail;
-    }
+    info_begin=read_off(s->fd);
+    if(info_begin==0)
+	goto fail;
+    if(lseek(s->fd,info_begin,SEEK_SET)<0)
+	goto fail;
+    if(read_uint32(s->fd)!=0x100)
+	goto fail;
+    if((count = read_uint32(s->fd))==0)
+	goto fail;
+    info_end = info_begin+count;
+    if(lseek(s->fd,0xf8,SEEK_CUR)<0)
+	goto fail;
 
-    /* offset of resource fork (RsrcForkOffset) */
-    ret = read_uint64(bs, offset + 0x28, &rsrc_fork_offset);
-    if (ret < 0) {
-        goto fail;
-    }
-    ret = read_uint64(bs, offset + 0x30, &rsrc_fork_length);
-    if (ret < 0) {
-        goto fail;
-    }
-    if (rsrc_fork_offset >= offset ||
-        rsrc_fork_length > offset - rsrc_fork_offset) {
-        ret = -EINVAL;
-        goto fail;
-    }
-    /* offset of property list (XMLOffset) */
-    ret = read_uint64(bs, offset + 0xd8, &plist_xml_offset);
-    if (ret < 0) {
-        goto fail;
-    }
-    ret = read_uint64(bs, offset + 0xe0, &plist_xml_length);
-    if (ret < 0) {
-        goto fail;
-    }
-    if (plist_xml_offset >= offset ||
-        plist_xml_length > offset - plist_xml_offset) {
-        ret = -EINVAL;
-        goto fail;
-    }
-    ret = read_uint64(bs, offset + 0x1ec, (uint64_t *)&bs->total_sectors);
-    if (ret < 0) {
-        goto fail;
-    }
-    if (bs->total_sectors < 0) {
-        ret = -EINVAL;
-        goto fail;
-    }
-    if (rsrc_fork_length != 0) {
-        ret = dmg_read_resource_fork(bs, &ds,
-                                     rsrc_fork_offset, rsrc_fork_length);
-        if (ret < 0) {
-            goto fail;
-        }
-    } else if (plist_xml_length != 0) {
-        ret = dmg_read_plist_xml(bs, &ds, plist_xml_offset, plist_xml_length);
-        if (ret < 0) {
-            goto fail;
-        }
-    } else {
-        ret = -EINVAL;
-        goto fail;
+    /* read offsets */
+    last_in_offset = last_out_offset = 0;
+    while(lseek(s->fd,0,SEEK_CUR)<info_end) {
+        uint32_t type;
+
+	count = read_uint32(s->fd);
+	if(count==0)
+	    goto fail;
+	type = read_uint32(s->fd);
+	if(type!=0x6d697368 || count<244)
+	    lseek(s->fd,count-4,SEEK_CUR);
+	else {
+	    int new_size, chunk_count;
+	    if(lseek(s->fd,200,SEEK_CUR)<0)
+	        goto fail;
+	    chunk_count = (count-204)/40;
+	    new_size = sizeof(uint64_t) * (s->n_chunks + chunk_count);
+	    s->types = qemu_realloc(s->types, new_size/2);
+	    s->offsets = qemu_realloc(s->offsets, new_size);
+	    s->lengths = qemu_realloc(s->lengths, new_size);
+	    s->sectors = qemu_realloc(s->sectors, new_size);
+	    s->sectorcounts = qemu_realloc(s->sectorcounts, new_size);
+
+	    for(i=s->n_chunks;i<s->n_chunks+chunk_count;i++) {
+		s->types[i] = read_uint32(s->fd);
+		if(s->types[i]!=0x80000005 && s->types[i]!=1 && s->types[i]!=2) {
+		    if(s->types[i]==0xffffffff) {
+			last_in_offset = s->offsets[i-1]+s->lengths[i-1];
+			last_out_offset = s->sectors[i-1]+s->sectorcounts[i-1];
+		    }
+		    chunk_count--;
+		    i--;
+		    if(lseek(s->fd,36,SEEK_CUR)<0)
+			goto fail;
+		    continue;
+		}
+		read_uint32(s->fd);
+		s->sectors[i] = last_out_offset+read_off(s->fd);
+		s->sectorcounts[i] = read_off(s->fd);
+		s->offsets[i] = last_in_offset+read_off(s->fd);
+		s->lengths[i] = read_off(s->fd);
+		if(s->lengths[i]>max_compressed_size)
+		    max_compressed_size = s->lengths[i];
+		if(s->sectorcounts[i]>max_sectors_per_chunk)
+		    max_sectors_per_chunk = s->sectorcounts[i];
+	    }
+	    s->n_chunks+=chunk_count;
+	}
     }
 
     /* initialize zlib engine */
-    s->compressed_chunk = qemu_try_blockalign(bs->file->bs,
-                                              ds.max_compressed_size + 1);
-    s->uncompressed_chunk = qemu_try_blockalign(bs->file->bs,
-                                                512 * ds.max_sectors_per_chunk);
-    if (s->compressed_chunk == NULL || s->uncompressed_chunk == NULL) {
-        ret = -ENOMEM;
-        goto fail;
-    }
-
-    if (inflateInit(&s->zstream) != Z_OK) {
-        ret = -EINVAL;
-        goto fail;
-    }
+    s->compressed_chunk = qemu_malloc(max_compressed_size+1);
+    s->uncompressed_chunk = qemu_malloc(512*max_sectors_per_chunk);
+    if(inflateInit(&s->zstream) != Z_OK)
+	goto fail;
 
     s->current_chunk = s->n_chunks;
 
-    qemu_co_mutex_init(&s->lock);
     return 0;
-
 fail:
-    g_free(s->types);
-    g_free(s->offsets);
-    g_free(s->lengths);
-    g_free(s->sectors);
-    g_free(s->sectorcounts);
-    qemu_vfree(s->compressed_chunk);
-    qemu_vfree(s->uncompressed_chunk);
-    return ret;
-}
-
-static void dmg_refresh_limits(BlockDriverState *bs, Error **errp)
-{
-    bs->bl.request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O */
+    close(s->fd);
+    return -1;
 }
 
 static inline int is_sector_in_chunk(BDRVDMGState* s,
-                uint32_t chunk_num, uint64_t sector_num)
+		uint32_t chunk_num,int sector_num)
 {
-    if (chunk_num >= s->n_chunks || s->sectors[chunk_num] > sector_num ||
-            s->sectors[chunk_num] + s->sectorcounts[chunk_num] <= sector_num) {
-        return 0;
-    } else {
-        return -1;
-    }
+    if(chunk_num>=s->n_chunks || s->sectors[chunk_num]>sector_num ||
+	    s->sectors[chunk_num]+s->sectorcounts[chunk_num]<=sector_num)
+	return 0;
+    else
+	return -1;
 }
 
-static inline uint32_t search_chunk(BDRVDMGState *s, uint64_t sector_num)
+static inline uint32_t search_chunk(BDRVDMGState* s,int sector_num)
 {
     /* binary search */
-    uint32_t chunk1 = 0, chunk2 = s->n_chunks, chunk3;
-    while (chunk1 != chunk2) {
-        chunk3 = (chunk1 + chunk2) / 2;
-        if (s->sectors[chunk3] > sector_num) {
-            chunk2 = chunk3;
-        } else if (s->sectors[chunk3] + s->sectorcounts[chunk3] > sector_num) {
-            return chunk3;
-        } else {
-            chunk1 = chunk3;
-        }
+    uint32_t chunk1=0,chunk2=s->n_chunks,chunk3;
+    while(chunk1!=chunk2) {
+	chunk3 = (chunk1+chunk2)/2;
+	if(s->sectors[chunk3]>sector_num)
+	    chunk2 = chunk3;
+	else if(s->sectors[chunk3]+s->sectorcounts[chunk3]>sector_num)
+	    return chunk3;
+	else
+	    chunk1 = chunk3;
     }
     return s->n_chunks; /* error */
 }
 
-static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
+static inline int dmg_read_chunk(BDRVDMGState *s,int sector_num)
 {
-    BDRVDMGState *s = bs->opaque;
+    if(!is_sector_in_chunk(s,s->current_chunk,sector_num)) {
+	int ret;
+	uint32_t chunk = search_chunk(s,sector_num);
 
-    if (!is_sector_in_chunk(s, s->current_chunk, sector_num)) {
-        int ret;
-        uint32_t chunk = search_chunk(s, sector_num);
+	if(chunk>=s->n_chunks)
+	    return -1;
 
-        if (chunk >= s->n_chunks) {
-            return -1;
-        }
+	s->current_chunk = s->n_chunks;
+	switch(s->types[chunk]) {
+	case 0x80000005: { /* zlib compressed */
+	    int i;
 
-        s->current_chunk = s->n_chunks;
-        switch (s->types[chunk]) { /* block entry type */
-        case 0x80000005: { /* zlib compressed */
-            /* we need to buffer, because only the chunk as whole can be
-             * inflated. */
-            ret = bdrv_pread(bs->file, s->offsets[chunk],
-                             s->compressed_chunk, s->lengths[chunk]);
-            if (ret != s->lengths[chunk]) {
-                return -1;
-            }
+	    ret = lseek(s->fd, s->offsets[chunk], SEEK_SET);
+	    if(ret<0)
+		return -1;
 
-            s->zstream.next_in = s->compressed_chunk;
-            s->zstream.avail_in = s->lengths[chunk];
-            s->zstream.next_out = s->uncompressed_chunk;
-            s->zstream.avail_out = 512 * s->sectorcounts[chunk];
-            ret = inflateReset(&s->zstream);
-            if (ret != Z_OK) {
-                return -1;
-            }
-            ret = inflate(&s->zstream, Z_FINISH);
-            if (ret != Z_STREAM_END ||
-                s->zstream.total_out != 512 * s->sectorcounts[chunk]) {
-                return -1;
-            }
-            break; }
-        case 0x80000006: /* bzip2 compressed */
-            if (!dmg_uncompress_bz2) {
-                break;
-            }
-            /* we need to buffer, because only the chunk as whole can be
-             * inflated. */
-            ret = bdrv_pread(bs->file, s->offsets[chunk],
-                             s->compressed_chunk, s->lengths[chunk]);
-            if (ret != s->lengths[chunk]) {
-                return -1;
-            }
+	    /* we need to buffer, because only the chunk as whole can be
+	     * inflated. */
+	    i=0;
+	    do {
+		ret = read(s->fd, s->compressed_chunk+i, s->lengths[chunk]-i);
+		if(ret<0 && errno==EINTR)
+		    ret=0;
+		i+=ret;
+	    } while(ret>=0 && ret+i<s->lengths[chunk]);
 
-            ret = dmg_uncompress_bz2((char *)s->compressed_chunk,
-                                     (unsigned int) s->lengths[chunk],
-                                     (char *)s->uncompressed_chunk,
-                                     (unsigned int)
-                                         (512 * s->sectorcounts[chunk]));
-            if (ret < 0) {
-                return ret;
-            }
-            break;
-        case 1: /* copy */
-            ret = bdrv_pread(bs->file, s->offsets[chunk],
-                             s->uncompressed_chunk, s->lengths[chunk]);
-            if (ret != s->lengths[chunk]) {
-                return -1;
-            }
-            break;
-        case 2: /* zero */
-            /* see dmg_read, it is treated specially. No buffer needs to be
-             * pre-filled, the zeroes can be set directly. */
-            break;
-        }
-        s->current_chunk = chunk;
+	    if (ret != s->lengths[chunk])
+		return -1;
+
+	    s->zstream.next_in = s->compressed_chunk;
+	    s->zstream.avail_in = s->lengths[chunk];
+	    s->zstream.next_out = s->uncompressed_chunk;
+	    s->zstream.avail_out = 512*s->sectorcounts[chunk];
+	    ret = inflateReset(&s->zstream);
+	    if(ret != Z_OK)
+		return -1;
+	    ret = inflate(&s->zstream, Z_FINISH);
+	    if(ret != Z_STREAM_END || s->zstream.total_out != 512*s->sectorcounts[chunk])
+		return -1;
+	    break; }
+	case 1: /* copy */
+	    ret = read(s->fd, s->uncompressed_chunk, s->lengths[chunk]);
+	    if (ret != s->lengths[chunk])
+		return -1;
+	    break;
+	case 2: /* zero */
+	    memset(s->uncompressed_chunk, 0, 512*s->sectorcounts[chunk]);
+	    break;
+	}
+	s->current_chunk = chunk;
     }
     return 0;
 }
 
-static int coroutine_fn
-dmg_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
-              QEMUIOVector *qiov, int flags)
+static int dmg_read(BlockDriverState *bs, int64_t sector_num,
+                    uint8_t *buf, int nb_sectors)
 {
     BDRVDMGState *s = bs->opaque;
-    uint64_t sector_num = offset >> BDRV_SECTOR_BITS;
-    int nb_sectors = bytes >> BDRV_SECTOR_BITS;
-    int ret, i;
+    int i;
 
-    assert((offset & (BDRV_SECTOR_SIZE - 1)) == 0);
-    assert((bytes & (BDRV_SECTOR_SIZE - 1)) == 0);
-
-    qemu_co_mutex_lock(&s->lock);
-
-    for (i = 0; i < nb_sectors; i++) {
-        uint32_t sector_offset_in_chunk;
-        void *data;
-
-        if (dmg_read_chunk(bs, sector_num + i) != 0) {
-            ret = -EIO;
-            goto fail;
-        }
-        /* Special case: current chunk is all zeroes. Do not perform a memcpy as
-         * s->uncompressed_chunk may be too small to cover the large all-zeroes
-         * section. dmg_read_chunk is called to find s->current_chunk */
-        if (s->types[s->current_chunk] == 2) { /* all zeroes block entry */
-            qemu_iovec_memset(qiov, i * 512, 0, 512);
-            continue;
-        }
-        sector_offset_in_chunk = sector_num + i - s->sectors[s->current_chunk];
-        data = s->uncompressed_chunk + sector_offset_in_chunk * 512;
-        qemu_iovec_from_buf(qiov, i * 512, data, 512);
+    for(i=0;i<nb_sectors;i++) {
+	uint32_t sector_offset_in_chunk;
+	if(dmg_read_chunk(s, sector_num+i) != 0)
+	    return -1;
+	sector_offset_in_chunk = sector_num+i-s->sectors[s->current_chunk];
+	memcpy(buf+i*512,s->uncompressed_chunk+sector_offset_in_chunk*512,512);
     }
-
-    ret = 0;
-fail:
-    qemu_co_mutex_unlock(&s->lock);
-    return ret;
+    return 0;
 }
 
 static void dmg_close(BlockDriverState *bs)
 {
     BDRVDMGState *s = bs->opaque;
-
-    g_free(s->types);
-    g_free(s->offsets);
-    g_free(s->lengths);
-    g_free(s->sectors);
-    g_free(s->sectorcounts);
-    qemu_vfree(s->compressed_chunk);
-    qemu_vfree(s->uncompressed_chunk);
-
+    close(s->fd);
+    if(s->n_chunks>0) {
+	free(s->types);
+	free(s->offsets);
+	free(s->lengths);
+	free(s->sectors);
+	free(s->sectorcounts);
+    }
+    free(s->compressed_chunk);
+    free(s->uncompressed_chunk);
     inflateEnd(&s->zstream);
 }
 
 static BlockDriver bdrv_dmg = {
-    .format_name    = "dmg",
-    .instance_size  = sizeof(BDRVDMGState),
-    .bdrv_probe     = dmg_probe,
-    .bdrv_open      = dmg_open,
-    .bdrv_refresh_limits = dmg_refresh_limits,
-    .bdrv_child_perm     = bdrv_format_default_perms,
-    .bdrv_co_preadv = dmg_co_preadv,
-    .bdrv_close     = dmg_close,
+    .format_name	= "dmg",
+    .instance_size	= sizeof(BDRVDMGState),
+    .bdrv_probe		= dmg_probe,
+    .bdrv_open		= dmg_open,
+    .bdrv_read		= dmg_read,
+    .bdrv_close		= dmg_close,
 };
 
 static void bdrv_dmg_init(void)