Don't change total_size when creating fixed vpc

After upstream commit #3f3f20d... vpc: Fix size in fixed image
creation. Total_sectors is rounded up to match the geometry,
total_size is also changed as well (Total_sectors * BDRV_SECTOR_SIZE).
This brings problem for bnc#943446 - qemu-img convert doesn't create
MB aligned VHDs anymore. Add patch to exclude the change.

Signed-off-by: Chunyan Liu <cyliu@suse.com>
[BR: BSC#943446]
Signed-off-by: Bruce Rogers <brogers@suse.com>

.dir-locals.el

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

.editorconfig

@@ -1,15 +0,0 @@
-# http://editorconfig.org
-root = true
-
-[*]
-end_of_line = lf
-insert_final_newline = true
-charset = utf-8
-
-[Makefile*]
-indent_style = tab
-indent_size = 8
-
-[*.{c,h}]
-indent_style = space
-indent_size = 4

.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

@@ -5,22 +5,24 @@
 /config-target.*
 /config.status
 /config-temp
-/trace-events-all
+/trace/generated-tracers.h
+/trace/generated-tracers.c
+/trace/generated-tracers-dtrace.h
+/trace/generated-tracers.dtrace
 /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
+/trace/generated-ust-provider.h
+/trace/generated-ust.c
+/libcacard/trace/generated-tracers.c
 *-timestamp
 /*-softmmu
 /*-darwin-user
 /*-linux-user
 /*-bsd-user
-/ivshmem-client
-/ivshmem-server
 /libdis*
 /libuser
 /linux-headers/asm
@@ -30,11 +32,11 @@
 /qapi-visit.[ch]
 /qapi-event.[ch]
 /qmp-commands.h
-/qmp-introspect.[ch]
 /qmp-marshal.c
 /qemu-doc.html
+/qemu-tech.html
 /qemu-doc.info
-/qemu-doc.txt
+/qemu-tech.info
 /qemu-img
 /qemu-nbd
 /qemu-options.def
@@ -45,19 +47,15 @@
 /qemu-ga
 /qemu-bridge-helper
 /qemu-monitor.texi
-/qemu-monitor-info.texi
-/qemu-version.h
-/qemu-version.h.tmp
-/module_block.h
+/qmp-commands.txt
 /vscclient
-/vhost-user-scsi
 /fsdev/virtfs-proxy-helper
 *.[1-9]
 *.a
 *.aux
 *.cp
+*.dvi
 *.exe
-*.msi
 *.dll
 *.so
 *.mo
@@ -77,6 +75,10 @@
 *.d
 !/scripts/qemu-guest-agent/fsfreeze-hook.d
 *.o
+*.lo
+*.la
+*.pc
+.libs
 .sdk
 *.gcda
 *.gcno
@@ -86,10 +88,6 @@
 /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
@@ -100,37 +98,8 @@
 /pc-bios/optionrom/kvmvapic.img
 /pc-bios/s390-ccw/s390-ccw.elf
 /pc-bios/s390-ccw/s390-ccw.img
-/docs/interop/qemu-ga-qapi.texi
-/docs/interop/qemu-ga-ref.html
-/docs/interop/qemu-ga-ref.info*
-/docs/interop/qemu-ga-ref.txt
-/docs/interop/qemu-qmp-qapi.texi
-/docs/interop/qemu-qmp-ref.html
-/docs/interop/qemu-qmp-ref.info*
-/docs/interop/qemu-qmp-ref.txt
-/docs/version.texi
-*.tps
 .stgit-*
 cscope.*
 tags
 TAGS
-docker-src.*
 *~
-*.ast_raw
-*.depend_raw
-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

@@ -22,15 +22,12 @@
 [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

.shippable.yml

@@ -1,49 +0,0 @@
-language: c
-git:
-   submodules: false
-env:
-  global:
-    - LC_ALL=C
-  matrix:
-    - IMAGE=debian-amd64
-      TARGET_LIST=x86_64-softmmu,x86_64-linux-user
-    - IMAGE=debian-win32-cross
-      TARGET_LIST=arm-softmmu,i386-softmmu,lm32-softmmu
-    - IMAGE=debian-win64-cross
-      TARGET_LIST=aarch64-softmmu,sparc64-softmmu,x86_64-softmmu
-    - IMAGE=debian-armel-cross
-      TARGET_LIST=arm-softmmu,arm-linux-user,armeb-linux-user
-    - IMAGE=debian-armhf-cross
-      TARGET_LIST=arm-softmmu,arm-linux-user,armeb-linux-user
-    - IMAGE=debian-arm64-cross
-      TARGET_LIST=aarch64-softmmu,aarch64-linux-user
-    - IMAGE=debian-s390x-cross
-      TARGET_LIST=s390x-softmmu,s390x-linux-user
-    - IMAGE=debian-mips-cross
-      TARGET_LIST=mips-softmmu,mipsel-linux-user
-    - IMAGE=debian-mips64el-cross
-      TARGET_LIST=mips64el-softmmu,mips64el-linux-user
-    - IMAGE=debian-powerpc-cross
-      TARGET_LIST=ppc-softmmu,ppcemb-softmmu,ppc-linux-user
-    - IMAGE=debian-ppc64el-cross
-      TARGET_LIST=ppc64-softmmu,ppc64-linux-user,ppc64abi32-linux-user
-build:
-  pre_ci:
-    - make docker-image-${IMAGE} V=1
-  pre_ci_boot:
-    image_name: qemu
-    image_tag: ${IMAGE}
-    pull: false
-    options: "-e HOME=/root"
-  ci:
-    - unset CC
-    # some targets require newer up to date packages, for example TARGET_LIST matching
-    # aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu)
-    # see the configure script:
-    #    error_exit "DTC (libfdt) version >= 1.4.2 not present. Your options:"
-    #    "  (1) Preferred: Install the DTC (libfdt) devel package"
-    #    "  (2) Fetch the DTC submodule, using:"
-    #    "      git submodule update --init dtc"
-    - dpkg --compare-versions `dpkg-query --showformat='${Version}' --show libfdt-dev` ge 1.4.2 || git submodule update --init dtc
-    - ./configure ${QEMU_CONFIGURE_OPTS} --target-list=${TARGET_LIST}
-    - make -j$(($(getconf _NPROCESSORS_ONLN) + 1))

.travis.yml

@@ -1,198 +1,103 @@
-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"
+  - clang
 notifications:
   irc:
     channels:
-      - secure: "F7GDRgjuOo5IUyRLqSkmDL7kvdU4UcH3Lm/W2db2JnDHTGCqgEdaYEYKciyCLZ57vOTsTsOgesN8iUT7hNHBd1KWKjZe9KDTZWppWRYVwAwQMzVeSOsbbU4tRoJ6Pp+3qhH1Z0eGYR9ZgKYAoTumDFgSAYRp4IscKS8jkoedOqM="
+      - "irc.oftc.net#qemu"
     on_success: change
     on_failure: always
 env:
   global:
-    - TEST_CMD="make check"
-    - MAKEFLAGS="-j3"
+    - TEST_CMD=""
+    - EXTRA_CONFIG=""
+    # Development packages, EXTRA_PKGS saved for additional builds
+    - CORE_PKGS="libusb-1.0-0-dev libiscsi-dev librados-dev libncurses5-dev"
+    - NET_PKGS="libseccomp-dev libgnutls-dev libssh2-1-dev  libspice-server-dev libspice-protocol-dev libnss3-dev"
+    - GUI_PKGS="libgtk-3-dev libvte-2.90-dev libsdl1.2-dev libpng12-dev libpixman-1-dev"
+    - EXTRA_PKGS=""
   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"
+    # Group major targets together with their linux-user counterparts
+    - TARGETS=alpha-softmmu,alpha-linux-user
+    - TARGETS=arm-softmmu,arm-linux-user,armeb-linux-user,aarch64-softmmu,aarch64-linux-user
+    - TARGETS=cris-softmmu,cris-linux-user
+    - TARGETS=i386-softmmu,i386-linux-user,x86_64-softmmu,x86_64-linux-user
+    - TARGETS=m68k-softmmu,m68k-linux-user
+    - TARGETS=microblaze-softmmu,microblazeel-softmmu,microblaze-linux-user,microblazeel-linux-user
+    - TARGETS=mips-softmmu,mips64-softmmu,mips64el-softmmu,mipsel-softmmu
+    - TARGETS=mips-linux-user,mips64-linux-user,mips64el-linux-user,mipsel-linux-user,mipsn32-linux-user,mipsn32el-linux-user
+    - TARGETS=or32-softmmu,or32-linux-user
+    - TARGETS=ppc-softmmu,ppc64-softmmu,ppcemb-softmmu,ppc-linux-user,ppc64-linux-user,ppc64abi32-linux-user,ppc64le-linux-user
+    - TARGETS=s390x-softmmu,s390x-linux-user
+    - TARGETS=sh4-softmmu,sh4eb-softmmu,sh4-linux-user sh4eb-linux-user
+    - TARGETS=sparc-softmmu,sparc64-softmmu,sparc-linux-user,sparc32plus-linux-user,sparc64-linux-user
+    - TARGETS=unicore32-softmmu,unicore32-linux-user
+    # Group remaining softmmu only targets into one build
+    - TARGETS=lm32-softmmu,moxie-softmmu,tricore-softmmu,xtensa-softmmu,xtensaeb-softmmu
 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
+  - sudo apt-get update -qq
+  - sudo apt-get install -qq ${CORE_PKGS} ${NET_PKGS} ${GUI_PKGS} ${EXTRA_PKGS}
 before_script:
-  - ./configure ${CONFIG}
+  - ./configure --target-list=${TARGETS} --enable-debug-tcg ${EXTRA_CONFIG}
 script:
-  - make ${MAKEFLAGS} && ${TEST_CMD}
+  - make -j2 && ${TEST_CMD}
 matrix:
+  # We manually include a number of additional build for non-standard bits
   include:
-    # Test with CLang for compile portability
-    - env: CONFIG=""
-      compiler: clang
-    # gprof/gcov are GCC features
-    - env: CONFIG="--enable-gprof --enable-gcov --disable-pie"
+    # Make check target (we only do this once)
+    - env:
+        - TARGETS=alpha-softmmu,arm-softmmu,aarch64-softmmu,cris-softmmu,
+                  i386-softmmu,x86_64-softmmu,m68k-softmmu,microblaze-softmmu,
+                  microblazeel-softmmu,mips-softmmu,mips64-softmmu,
+                  mips64el-softmmu,mipsel-softmmu,or32-softmmu,ppc-softmmu,
+                  ppc64-softmmu,ppcemb-softmmu,s390x-softmmu,sh4-softmmu,
+                  sh4eb-softmmu,sparc-softmmu,sparc64-softmmu,
+                  unicore32-softmmu,unicore32-linux-user,
+                  lm32-softmmu,moxie-softmmu,tricore-softmmu,xtensa-softmmu,
+                  xtensaeb-softmmu
+          TEST_CMD="make check"
       compiler: gcc
-    # We manually include builds which we disable "make check" for
-    - env: CONFIG="--enable-debug --enable-tcg-interpreter"
-           TEST_CMD=""
+    # Debug related options
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_CONFIG="--enable-debug"
       compiler: gcc
-    - env: CONFIG="--enable-trace-backends=simple"
-           TEST_CMD=""
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_CONFIG="--enable-debug --enable-tcg-interpreter"
       compiler: gcc
-    - env: CONFIG="--enable-trace-backends=ftrace"
-           TEST_CMD=""
+    # All the extra -dev packages
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_PKGS="libaio-dev libcap-ng-dev libattr1-dev libbrlapi-dev uuid-dev libusb-1.0.0-dev"
       compiler: gcc
-    - env: CONFIG="--enable-trace-backends=ust"
-           TEST_CMD=""
+    # Currently configure doesn't force --disable-pie
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_CONFIG="--enable-gprof --enable-gcov --disable-pie"
       compiler: gcc
-    - env: CONFIG="--disable-tcg"
-           TEST_CMD=""
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_PKGS="sparse"
+           EXTRA_CONFIG="--enable-sparse"
       compiler: gcc
-    - env: CONFIG=""
-      os: osx
-      compiler: clang
-    # Plain Trusty System Build
-    - env: CONFIG="--disable-linux-user"
-      sudo: required
-      addons:
-      dist: trusty
+    # All the trace backends (apart from dtrace)
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_CONFIG="--enable-trace-backends=stderr"
       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
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_CONFIG="--enable-trace-backends=simple"
+      compiler: gcc
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_CONFIG="--enable-trace-backends=ftrace"
+      compiler: gcc
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+          EXTRA_PKGS="liblttng-ust-dev liburcu-dev"
+          EXTRA_CONFIG="--enable-trace-backends=ust"
+      compiler: gcc
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_CONFIG="--enable-modules"
       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

@@ -9,7 +9,7 @@ patches before submitting.
 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 +31,7 @@ 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
@@ -43,8 +39,6 @@ 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
@@ -93,15 +87,10 @@ 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.
+Mixed declarations (interleaving statements and declarations within blocks)
+are not allowed; declarations should be at the beginning of blocks.  In other
+words, the code should not generate warnings if using GCC's
+-Wdeclaration-after-statement option.
 
 6. Conditional statements
 
@@ -116,45 +105,3 @@ if (a == 1) {
 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.
-
-8. trace-events style
-
-8.1 0x prefix
-
-In trace-events files, use a '0x' prefix to specify hex numbers, as in:
-
-some_trace(unsigned x, uint64_t y) "x 0x%x y 0x" PRIx64
-
-An exception is made for groups of numbers that are hexadecimal by
-convention and separated by the symbols '.', '/', ':', or ' ' (such as
-PCI bus id):
-
-another_trace(int cssid, int ssid, int dev_num) "bus id: %x.%x.%04x"
-
-However, you can use '0x' for such groups if you want. Anyway, be sure that
-it is obvious that numbers are in hex, ex.:
-
-data_dump(uint8_t c1, uint8_t c2, uint8_t c3) "bytes (in hex): %02x %02x %02x"
-
-Rationale: hex numbers are hard to read in logs when there is no 0x prefix,
-especially when (occasionally) the representation doesn't contain any letters
-and especially in one line with other decimal numbers. Number groups are allowed
-to not use '0x' because for some things notations like %x.%x.%x are used not
-only in Qemu. Also dumping raw data bytes with '0x' is less readable.
-
-8.2 '#' printf flag
-
-Do not use printf flag '#', like '%#x'.
-
-Rationale: there are two ways to add a '0x' prefix to printed number: '0x%...'
-and '%#...'. For consistency the only one way should be used. Arguments for
-'0x%' are:
- - it is more popular
- - '%#' omits the 0x for the value 0 which makes output inconsistent

COPYING.PYTHON

@@ -1,270 +0,0 @@
-A. HISTORY OF THE SOFTWARE
-==========================
-
-Python was created in the early 1990s by Guido van Rossum at Stichting
-Mathematisch Centrum (CWI, see http://www.cwi.nl) in the Netherlands
-as a successor of a language called ABC.  Guido remains Python's
-principal author, although it includes many contributions from others.
-
-In 1995, Guido continued his work on Python at the Corporation for
-National Research Initiatives (CNRI, see http://www.cnri.reston.va.us)
-in Reston, Virginia where he released several versions of the
-software.
-
-In May 2000, Guido and the Python core development team moved to
-BeOpen.com to form the BeOpen PythonLabs team.  In October of the same
-year, the PythonLabs team moved to Digital Creations (now Zope
-Corporation, see http://www.zope.com).  In 2001, the Python Software
-Foundation (PSF, see http://www.python.org/psf/) was formed, a
-non-profit organization created specifically to own Python-related
-Intellectual Property.  Zope Corporation is a sponsoring member of
-the PSF.
-
-All Python releases are Open Source (see http://www.opensource.org for
-the Open Source Definition).  Historically, most, but not all, Python
-releases have also been GPL-compatible; the table below summarizes
-the various releases.
-
-    Release         Derived     Year        Owner       GPL-
-                    from                                compatible? (1)
-
-    0.9.0 thru 1.2              1991-1995   CWI         yes
-    1.3 thru 1.5.2  1.2         1995-1999   CNRI        yes
-    1.6             1.5.2       2000        CNRI        no
-    2.0             1.6         2000        BeOpen.com  no
-    1.6.1           1.6         2001        CNRI        yes (2)
-    2.1             2.0+1.6.1   2001        PSF         no
-    2.0.1           2.0+1.6.1   2001        PSF         yes
-    2.1.1           2.1+2.0.1   2001        PSF         yes
-    2.2             2.1.1       2001        PSF         yes
-    2.1.2           2.1.1       2002        PSF         yes
-    2.1.3           2.1.2       2002        PSF         yes
-    2.2.1           2.2         2002        PSF         yes
-    2.2.2           2.2.1       2002        PSF         yes
-    2.2.3           2.2.2       2003        PSF         yes
-    2.3             2.2.2       2002-2003   PSF         yes
-    2.3.1           2.3         2002-2003   PSF         yes
-    2.3.2           2.3.1       2002-2003   PSF         yes
-    2.3.3           2.3.2       2002-2003   PSF         yes
-    2.3.4           2.3.3       2004        PSF         yes
-    2.3.5           2.3.4       2005        PSF         yes
-    2.4             2.3         2004        PSF         yes
-    2.4.1           2.4         2005        PSF         yes
-    2.4.2           2.4.1       2005        PSF         yes
-    2.4.3           2.4.2       2006        PSF         yes
-    2.5             2.4         2006        PSF         yes
-    2.7             2.6         2010        PSF         yes
-
-Footnotes:
-
-(1) GPL-compatible doesn't mean that we're distributing Python under
-    the GPL.  All Python licenses, unlike the GPL, let you distribute
-    a modified version without making your changes open source.  The
-    GPL-compatible licenses make it possible to combine Python with
-    other software that is released under the GPL; the others don't.
-
-(2) According to Richard Stallman, 1.6.1 is not GPL-compatible,
-    because its license has a choice of law clause.  According to
-    CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1
-    is "not incompatible" with the GPL.
-
-Thanks to the many outside volunteers who have worked under Guido's
-direction to make these releases possible.
-
-
-B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON
-===============================================================
-
-PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
---------------------------------------------
-
-1. This LICENSE AGREEMENT is between the Python Software Foundation
-("PSF"), and the Individual or Organization ("Licensee") accessing and
-otherwise using this software ("Python") in source or binary form and
-its associated documentation.
-
-2. Subject to the terms and conditions of this License Agreement, PSF
-hereby grants Licensee a nonexclusive, royalty-free, world-wide
-license to reproduce, analyze, test, perform and/or display publicly,
-prepare derivative works, distribute, and otherwise use Python
-alone or in any derivative version, provided, however, that PSF's
-License Agreement and PSF's notice of copyright, i.e., "Copyright (c)
-2001, 2002, 2003, 2004, 2005, 2006 Python Software Foundation; All Rights
-Reserved" are retained in Python alone or in any derivative version 
-prepared by Licensee.
-
-3. In the event Licensee prepares a derivative work that is based on
-or incorporates Python or any part thereof, and wants to make
-the derivative work available to others as provided herein, then
-Licensee hereby agrees to include in any such work a brief summary of
-the changes made to Python.
-
-4. PSF is making Python available to Licensee on an "AS IS"
-basis.  PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
-IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
-DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
-FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
-INFRINGE ANY THIRD PARTY RIGHTS.
-
-5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
-FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
-A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
-OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
-
-6. This License Agreement will automatically terminate upon a material
-breach of its terms and conditions.
-
-7. Nothing in this License Agreement shall be deemed to create any
-relationship of agency, partnership, or joint venture between PSF and
-Licensee.  This License Agreement does not grant permission to use PSF
-trademarks or trade name in a trademark sense to endorse or promote
-products or services of Licensee, or any third party.
-
-8. By copying, installing or otherwise using Python, Licensee
-agrees to be bound by the terms and conditions of this License
-Agreement.
-
-
-BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
--------------------------------------------
-
-BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
-
-1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an
-office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the
-Individual or Organization ("Licensee") accessing and otherwise using
-this software in source or binary form and its associated
-documentation ("the Software").
-
-2. Subject to the terms and conditions of this BeOpen Python License
-Agreement, BeOpen hereby grants Licensee a non-exclusive,
-royalty-free, world-wide license to reproduce, analyze, test, perform
-and/or display publicly, prepare derivative works, distribute, and
-otherwise use the Software alone or in any derivative version,
-provided, however, that the BeOpen Python License is retained in the
-Software, alone or in any derivative version prepared by Licensee.
-
-3. BeOpen is making the Software available to Licensee on an "AS IS"
-basis.  BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
-IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND
-DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
-FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT
-INFRINGE ANY THIRD PARTY RIGHTS.
-
-4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE
-SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS
-AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY
-DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
-
-5. This License Agreement will automatically terminate upon a material
-breach of its terms and conditions.
-
-6. This License Agreement shall be governed by and interpreted in all
-respects by the law of the State of California, excluding conflict of
-law provisions.  Nothing in this License Agreement shall be deemed to
-create any relationship of agency, partnership, or joint venture
-between BeOpen and Licensee.  This License Agreement does not grant
-permission to use BeOpen trademarks or trade names in a trademark
-sense to endorse or promote products or services of Licensee, or any
-third party.  As an exception, the "BeOpen Python" logos available at
-http://www.pythonlabs.com/logos.html may be used according to the
-permissions granted on that web page.
-
-7. By copying, installing or otherwise using the software, Licensee
-agrees to be bound by the terms and conditions of this License
-Agreement.
-
-
-CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
----------------------------------------
-
-1. This LICENSE AGREEMENT is between the Corporation for National
-Research Initiatives, having an office at 1895 Preston White Drive,
-Reston, VA 20191 ("CNRI"), and the Individual or Organization
-("Licensee") accessing and otherwise using Python 1.6.1 software in
-source or binary form and its associated documentation.
-
-2. Subject to the terms and conditions of this License Agreement, CNRI
-hereby grants Licensee a nonexclusive, royalty-free, world-wide
-license to reproduce, analyze, test, perform and/or display publicly,
-prepare derivative works, distribute, and otherwise use Python 1.6.1
-alone or in any derivative version, provided, however, that CNRI's
-License Agreement and CNRI's notice of copyright, i.e., "Copyright (c)
-1995-2001 Corporation for National Research Initiatives; All Rights
-Reserved" are retained in Python 1.6.1 alone or in any derivative
-version prepared by Licensee.  Alternately, in lieu of CNRI's License
-Agreement, Licensee may substitute the following text (omitting the
-quotes): "Python 1.6.1 is made available subject to the terms and
-conditions in CNRI's License Agreement.  This Agreement together with
-Python 1.6.1 may be located on the Internet using the following
-unique, persistent identifier (known as a handle): 1895.22/1013.  This
-Agreement may also be obtained from a proxy server on the Internet
-using the following URL: http://hdl.handle.net/1895.22/1013".
-
-3. In the event Licensee prepares a derivative work that is based on
-or incorporates Python 1.6.1 or any part thereof, and wants to make
-the derivative work available to others as provided herein, then
-Licensee hereby agrees to include in any such work a brief summary of
-the changes made to Python 1.6.1.
-
-4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS"
-basis.  CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
-IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND
-DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
-FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT
-INFRINGE ANY THIRD PARTY RIGHTS.
-
-5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
-1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
-A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1,
-OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
-
-6. This License Agreement will automatically terminate upon a material
-breach of its terms and conditions.
-
-7. This License Agreement shall be governed by the federal
-intellectual property law of the United States, including without
-limitation the federal copyright law, and, to the extent such
-U.S. federal law does not apply, by the law of the Commonwealth of
-Virginia, excluding Virginia's conflict of law provisions.
-Notwithstanding the foregoing, with regard to derivative works based
-on Python 1.6.1 that incorporate non-separable material that was
-previously distributed under the GNU General Public License (GPL), the
-law of the Commonwealth of Virginia shall govern this License
-Agreement only as to issues arising under or with respect to
-Paragraphs 4, 5, and 7 of this License Agreement.  Nothing in this
-License Agreement shall be deemed to create any relationship of
-agency, partnership, or joint venture between CNRI and Licensee.  This
-License Agreement does not grant permission to use CNRI trademarks or
-trade name in a trademark sense to endorse or promote products or
-services of Licensee, or any third party.
-
-8. By clicking on the "ACCEPT" button where indicated, or by copying,
-installing or otherwise using Python 1.6.1, Licensee agrees to be
-bound by the terms and conditions of this License Agreement.
-
-        ACCEPT
-
-
-CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
---------------------------------------------------
-
-Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam,
-The Netherlands.  All rights reserved.
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in
-supporting documentation, and that the name of Stichting Mathematisch
-Centrum or CWI not be used in advertising or publicity pertaining to
-distribution of the software without specific, written prior
-permission.
-
-STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
-THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
-FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
-OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

HACKING

@@ -1,28 +1,10 @@
 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
@@ -175,62 +157,3 @@ 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().

Makefile

@@ -3,11 +3,6 @@
 # Always point to the root of the build tree (needs GNU make).
 BUILD_DIR=$(CURDIR)
 
-# Before including a proper config-host.mak, assume we are in the source tree
-SRC_PATH=.
-
-UNCHECKED_GOALS := %clean TAGS cscope ctags docker docker-%
-
 # All following code might depend on configuration variables
 ifneq ($(wildcard config-host.mak),)
 # Put the all: rule here so that config-host.mak can contain dependencies.
@@ -26,12 +21,12 @@ endif
 
 CONFIG_SOFTMMU := $(if $(filter %-softmmu,$(TARGET_DIRS)),y)
 CONFIG_USER_ONLY := $(if $(filter %-user,$(TARGET_DIRS)),y)
-CONFIG_XEN := $(CONFIG_XEN_BACKEND)
 CONFIG_ALL=y
 -include config-all-devices.mak
 -include config-all-disas.mak
 
-config-host.mak: $(SRC_PATH)/configure $(SRC_PATH)/pc-bios
+include $(SRC_PATH)/rules.mak
+config-host.mak: $(SRC_PATH)/configure
 	@echo $@ is out-of-date, running configure
 	@# TODO: The next lines include code which supports a smooth
 	@# transition from old configurations without config.status.
@@ -43,161 +38,43 @@ config-host.mak: $(SRC_PATH)/configure $(SRC_PATH)/pc-bios
 	fi
 else
 config-host.mak:
-ifneq ($(filter-out $(UNCHECKED_GOALS),$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
+ifneq ($(filter-out %clean,$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
 	@echo "Please call configure before running make!"
 	@exit 1
 endif
 endif
 
-include $(SRC_PATH)/rules.mak
+GENERATED_HEADERS = config-host.h qemu-options.def
+GENERATED_HEADERS += qmp-commands.h qapi-types.h qapi-visit.h qapi-event.h
+GENERATED_SOURCES += qmp-marshal.c qapi-types.c qapi-visit.c qapi-event.c
 
-GENERATED_FILES = qemu-version.h config-host.h qemu-options.def
-GENERATED_FILES += qmp-commands.h qapi-types.h qapi-visit.h qapi-event.h
-GENERATED_FILES += qmp-marshal.c qapi-types.c qapi-visit.c qapi-event.c
-GENERATED_FILES += qmp-introspect.h
-GENERATED_FILES += qmp-introspect.c
+GENERATED_HEADERS += trace/generated-events.h
+GENERATED_SOURCES += trace/generated-events.c
 
-GENERATED_FILES += trace/generated-tcg-tracers.h
-
-GENERATED_FILES += trace/generated-helpers-wrappers.h
-GENERATED_FILES += trace/generated-helpers.h
-GENERATED_FILES += trace/generated-helpers.c
-
-ifdef CONFIG_TRACE_UST
-GENERATED_FILES += trace-ust-all.h
-GENERATED_FILES += trace-ust-all.c
+GENERATED_HEADERS += trace/generated-tracers.h
+ifeq ($(findstring dtrace,$(TRACE_BACKENDS)),dtrace)
+GENERATED_HEADERS += trace/generated-tracers-dtrace.h
 endif
+GENERATED_SOURCES += trace/generated-tracers.c
 
-GENERATED_FILES += module_block.h
+GENERATED_HEADERS += trace/generated-tcg-tracers.h
 
-TRACE_HEADERS = trace-root.h $(trace-events-subdirs:%=%/trace.h)
-TRACE_SOURCES = trace-root.c $(trace-events-subdirs:%=%/trace.c)
-TRACE_DTRACE =
-ifdef CONFIG_TRACE_DTRACE
-TRACE_HEADERS += trace-dtrace-root.h $(trace-events-subdirs:%=%/trace-dtrace.h)
-TRACE_DTRACE += trace-dtrace-root.dtrace $(trace-events-subdirs:%=%/trace-dtrace.dtrace)
+GENERATED_HEADERS += trace/generated-helpers-wrappers.h
+GENERATED_HEADERS += trace/generated-helpers.h
+GENERATED_SOURCES += trace/generated-helpers.c
+
+ifeq ($(findstring ust,$(TRACE_BACKENDS)),ust)
+GENERATED_HEADERS += trace/generated-ust-provider.h
+GENERATED_SOURCES += trace/generated-ust.c
 endif
-ifdef CONFIG_TRACE_UST
-TRACE_HEADERS += trace-ust-root.h $(trace-events-subdirs:%=%/trace-ust.h)
-endif
-
-GENERATED_FILES += $(TRACE_HEADERS)
-GENERATED_FILES += $(TRACE_SOURCES)
-GENERATED_FILES += $(BUILD_DIR)/trace-events-all
-
-trace-group-name = $(shell dirname $1 | sed -e 's/[^a-zA-Z0-9]/_/g')
-
-tracetool-y = $(SRC_PATH)/scripts/tracetool.py
-tracetool-y += $(shell find $(SRC_PATH)/scripts/tracetool -name "*.py")
-
-%/trace.h: %/trace.h-timestamp
-	@cmp $< $@ >/dev/null 2>&1 || cp $< $@
-%/trace.h-timestamp: $(SRC_PATH)/%/trace-events $(tracetool-y)
-	$(call quiet-command,$(TRACETOOL) \
-		--group=$(call trace-group-name,$@) \
-		--format=h \
-		--backends=$(TRACE_BACKENDS) \
-		$< > $@,"GEN","$(@:%-timestamp=%)")
-
-%/trace.c: %/trace.c-timestamp
-	@cmp $< $@ >/dev/null 2>&1 || cp $< $@
-%/trace.c-timestamp: $(SRC_PATH)/%/trace-events $(tracetool-y)
-	$(call quiet-command,$(TRACETOOL) \
-		--group=$(call trace-group-name,$@) \
-		--format=c \
-		--backends=$(TRACE_BACKENDS) \
-		$< > $@,"GEN","$(@:%-timestamp=%)")
-
-%/trace-ust.h: %/trace-ust.h-timestamp
-	@cmp $< $@ >/dev/null 2>&1 || cp $< $@
-%/trace-ust.h-timestamp: $(SRC_PATH)/%/trace-events $(tracetool-y)
-	$(call quiet-command,$(TRACETOOL) \
-		--group=$(call trace-group-name,$@) \
-		--format=ust-events-h \
-		--backends=$(TRACE_BACKENDS) \
-		$< > $@,"GEN","$(@:%-timestamp=%)")
-
-%/trace-dtrace.dtrace: %/trace-dtrace.dtrace-timestamp
-	@cmp $< $@ >/dev/null 2>&1 || cp $< $@
-%/trace-dtrace.dtrace-timestamp: $(SRC_PATH)/%/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
-	$(call quiet-command,$(TRACETOOL) \
-		--group=$(call trace-group-name,$@) \
-		--format=d \
-		--backends=$(TRACE_BACKENDS) \
-		$< > $@,"GEN","$(@:%-timestamp=%)")
-
-%/trace-dtrace.h: %/trace-dtrace.dtrace $(tracetool-y)
-	$(call quiet-command,dtrace -o $@ -h -s $<, "GEN","$@")
-
-%/trace-dtrace.o: %/trace-dtrace.dtrace $(tracetool-y)
-
-
-trace-root.h: trace-root.h-timestamp
-	@cmp $< $@ >/dev/null 2>&1 || cp $< $@
-trace-root.h-timestamp: $(SRC_PATH)/trace-events $(tracetool-y)
-	$(call quiet-command,$(TRACETOOL) \
-		--group=root \
-		--format=h \
-		--backends=$(TRACE_BACKENDS) \
-		$< > $@,"GEN","$(@:%-timestamp=%)")
-
-trace-root.c: trace-root.c-timestamp
-	@cmp $< $@ >/dev/null 2>&1 || cp $< $@
-trace-root.c-timestamp: $(SRC_PATH)/trace-events $(tracetool-y)
-	$(call quiet-command,$(TRACETOOL) \
-		--group=root \
-		--format=c \
-		--backends=$(TRACE_BACKENDS) \
-		$< > $@,"GEN","$(@:%-timestamp=%)")
-
-trace-ust-root.h: trace-ust-root.h-timestamp
-	@cmp $< $@ >/dev/null 2>&1 || cp $< $@
-trace-ust-root.h-timestamp: $(SRC_PATH)/trace-events $(tracetool-y)
-	$(call quiet-command,$(TRACETOOL) \
-		--group=root \
-		--format=ust-events-h \
-		--backends=$(TRACE_BACKENDS) \
-		$< > $@,"GEN","$(@:%-timestamp=%)")
-
-trace-ust-all.h: trace-ust-all.h-timestamp
-	@cmp $< $@ >/dev/null 2>&1 || cp $< $@
-trace-ust-all.h-timestamp: $(trace-events-files) $(tracetool-y)
-	$(call quiet-command,$(TRACETOOL) \
-		--group=all \
-		--format=ust-events-h \
-		--backends=$(TRACE_BACKENDS) \
-		$(trace-events-files) > $@,"GEN","$(@:%-timestamp=%)")
-
-trace-ust-all.c: trace-ust-all.c-timestamp
-	@cmp $< $@ >/dev/null 2>&1 || cp $< $@
-trace-ust-all.c-timestamp: $(trace-events-files) $(tracetool-y)
-	$(call quiet-command,$(TRACETOOL) \
-		--group=all \
-		--format=ust-events-c \
-		--backends=$(TRACE_BACKENDS) \
-		$(trace-events-files) > $@,"GEN","$(@:%-timestamp=%)")
-
-trace-dtrace-root.dtrace: trace-dtrace-root.dtrace-timestamp
-	@cmp $< $@ >/dev/null 2>&1 || cp $< $@
-trace-dtrace-root.dtrace-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
-	$(call quiet-command,$(TRACETOOL) \
-		--group=root \
-		--format=d \
-		--backends=$(TRACE_BACKENDS) \
-		$< > $@,"GEN","$(@:%-timestamp=%)")
-
-trace-dtrace-root.h: trace-dtrace-root.dtrace
-	$(call quiet-command,dtrace -o $@ -h -s $<, "GEN","$@")
-
-trace-dtrace-root.o: trace-dtrace-root.dtrace
 
 # Don't try to regenerate Makefile or configure
 # We don't generate any of them
 Makefile: ;
 configure: ;
 
-.PHONY: all clean cscope distclean html info install install-doc \
-	pdf txt recurse-all speed test dist msi FORCE
+.PHONY: all clean cscope distclean dvi html info install install-doc \
+	pdf recurse-all speed test dist
 
 $(call set-vpath, $(SRC_PATH))
 
@@ -206,9 +83,10 @@ LIBS+=-lz $(LIBS_TOOLS)
 HELPERS-$(CONFIG_LINUX) = qemu-bridge-helper$(EXESUF)
 
 ifdef BUILD_DOCS
-DOCS=qemu-doc.html qemu-doc.txt qemu.1 qemu-img.1 qemu-nbd.8 qemu-ga.8
-DOCS+=docs/interop/qemu-qmp-ref.html docs/interop/qemu-qmp-ref.txt docs/interop/qemu-qmp-ref.7
-DOCS+=docs/interop/qemu-ga-ref.html docs/interop/qemu-ga-ref.txt docs/interop/qemu-ga-ref.7
+DOCS=qemu-doc.html qemu-tech.html qemu.1 qemu-img.1 qemu-nbd.8 qmp-commands.txt
+ifdef CONFIG_LINUX
+DOCS+=kvm_stat.1
+endif
 ifdef CONFIG_VIRTFS
 DOCS+=fsdev/virtfs-proxy-helper.1
 endif
@@ -222,20 +100,20 @@ SUBDIR_DEVICES_MAK_DEP=$(patsubst %, %-config-devices.mak.d, $(TARGET_DIRS))
 
 ifeq ($(SUBDIR_DEVICES_MAK),)
 config-all-devices.mak:
-	$(call quiet-command,echo '# no devices' > $@,"GEN","$@")
+	$(call quiet-command,echo '# no devices' > $@,"  GEN   $@")
 else
 config-all-devices.mak: $(SUBDIR_DEVICES_MAK)
 	$(call quiet-command, sed -n \
              's|^\([^=]*\)=\(.*\)$$|\1:=$$(findstring y,$$(\1)\2)|p' \
              $(SUBDIR_DEVICES_MAK) | sort -u > $@, \
-             "GEN","$@")
+             "  GEN   $@")
 endif
 
 -include $(SUBDIR_DEVICES_MAK_DEP)
 
-%/config-devices.mak: default-configs/%.mak $(SRC_PATH)/scripts/make_device_config.sh
+%/config-devices.mak: default-configs/%.mak
 	$(call quiet-command, \
-            $(SHELL) $(SRC_PATH)/scripts/make_device_config.sh $< $*-config-devices.mak.d $@ > $@.tmp,"GEN","$@.tmp")
+            $(SHELL) $(SRC_PATH)/scripts/make_device_config.sh $< $*-config-devices.mak.d $@ > $@.tmp, "  GEN   $@.tmp")
 	$(call quiet-command, if test -f $@; then \
 	  if cmp -s $@.old $@; then \
 	    mv $@.tmp $@; \
@@ -252,7 +130,7 @@ endif
 	 else \
 	  mv $@.tmp $@; \
 	  cp -p $@ $@.old; \
-	 fi,"GEN","$@");
+	 fi, "  GEN  $@");
 
 defconfig:
 	rm -f config-all-devices.mak $(SUBDIR_DEVICES_MAK)
@@ -263,68 +141,46 @@ endif
 
 dummy := $(call unnest-vars,, \
                 stub-obj-y \
-                chardev-obj-y \
                 util-obj-y \
                 qga-obj-y \
-                ivshmem-client-obj-y \
-                ivshmem-server-obj-y \
-                libvhost-user-obj-y \
-                vhost-user-scsi-obj-y \
                 qga-vss-dll-obj-y \
                 block-obj-y \
                 block-obj-m \
-                crypto-obj-y \
-                crypto-aes-obj-y \
-                qom-obj-y \
-                io-obj-y \
                 common-obj-y \
-                common-obj-m \
-                trace-obj-y)
+                common-obj-m)
 
-include $(SRC_PATH)/tests/Makefile.include
+ifneq ($(wildcard config-host.mak),)
+include $(SRC_PATH)/tests/Makefile
+endif
+ifeq ($(CONFIG_SMARTCARD_NSS),y)
+include $(SRC_PATH)/libcacard/Makefile
+endif
 
 all: $(DOCS) $(TOOLS) $(HELPERS-y) recurse-all modules
 
-qemu-version.h: FORCE
-	$(call quiet-command, \
-		(cd $(SRC_PATH); \
-		printf '#define QEMU_PKGVERSION '; \
-		if test -n "$(PKGVERSION)"; then \
-			printf '"$(PKGVERSION)"\n'; \
-		else \
-			if test -d .git; then \
-				printf '" ('; \
-				git describe --match 'v*' 2>/dev/null | tr -d '\n'; \
-				if ! git diff-index --quiet HEAD &>/dev/null; then \
-					printf -- '-dirty'; \
-				fi; \
-				printf ')"\n'; \
-			else \
-				printf '""\n'; \
-			fi; \
-		fi) > $@.tmp)
-	$(call quiet-command, if ! cmp -s $@ $@.tmp; then \
-	  mv $@.tmp $@; \
-	 else \
-	  rm $@.tmp; \
-	 fi)
-
 config-host.h: config-host.h-timestamp
 config-host.h-timestamp: config-host.mak
-qemu-options.def: $(SRC_PATH)/qemu-options.hx $(SRC_PATH)/scripts/hxtool
-	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"GEN","$@")
+qemu-options.def: $(SRC_PATH)/qemu-options.hx
+	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"  GEN   $@")
 
 SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS))
 SOFTMMU_SUBDIR_RULES=$(filter %-softmmu,$(SUBDIR_RULES))
 
 $(SOFTMMU_SUBDIR_RULES): $(block-obj-y)
-$(SOFTMMU_SUBDIR_RULES): $(crypto-obj-y)
-$(SOFTMMU_SUBDIR_RULES): $(io-obj-y)
 $(SOFTMMU_SUBDIR_RULES): config-all-devices.mak
 
 subdir-%:
 	$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $* V="$(V)" TARGET_DIR="$*/" all,)
 
+subdir-pixman: pixman/Makefile
+	$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pixman V="$(V)" all,)
+
+pixman/Makefile: $(SRC_PATH)/pixman/configure
+	(cd pixman; CFLAGS="$(CFLAGS) -fPIC $(extra_cflags) $(extra_ldflags)" $(SRC_PATH)/pixman/configure $(AUTOCONF_HOST) --disable-gtk --disable-shared --enable-static)
+
+$(SRC_PATH)/pixman/configure:
+	(cd $(SRC_PATH)/pixman; autoreconf -v --install)
+
 DTC_MAKE_ARGS=-I$(SRC_PATH)/dtc VPATH=$(SRC_PATH)/dtc -C dtc V="$(V)" LIBFDT_srcdir=$(SRC_PATH)/dtc/libfdt
 DTC_CFLAGS=$(CFLAGS) $(QEMU_CFLAGS)
 DTC_CPPFLAGS=-I$(BUILD_DIR)/dtc -I$(SRC_PATH)/dtc -I$(SRC_PATH)/dtc/libfdt
@@ -335,45 +191,47 @@ subdir-dtc:dtc/libfdt dtc/tests
 dtc/%:
 	mkdir -p $@
 
-$(SUBDIR_RULES): libqemuutil.a $(common-obj-y) $(chardev-obj-y) \
-	$(qom-obj-y) $(crypto-aes-obj-$(CONFIG_USER_ONLY))
+$(SUBDIR_RULES): libqemuutil.a libqemustub.a $(common-obj-y)
 
 ROMSUBDIR_RULES=$(patsubst %,romsubdir-%, $(ROMS))
-# Only keep -O and -g cflags
 romsubdir-%:
-	$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pc-bios/$* V="$(V)" TARGET_DIR="$*/" CFLAGS="$(filter -O% -g%,$(CFLAGS))",)
+	$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pc-bios/$* V="$(V)" TARGET_DIR="$*/",)
 
 ALL_SUBDIRS=$(TARGET_DIRS) $(patsubst %,pc-bios/%, $(ROMS))
 
 recurse-all: $(SUBDIR_RULES) $(ROMSUBDIR_RULES)
 
-$(BUILD_DIR)/version.o: $(SRC_PATH)/version.rc config-host.h
-	$(call quiet-command,$(WINDRES) -I$(BUILD_DIR) -o $@ $<,"RC","version.o")
+$(BUILD_DIR)/version.o: $(SRC_PATH)/version.rc config-host.h | $(BUILD_DIR)/version.lo
+	$(call quiet-command,$(WINDRES) -I$(BUILD_DIR) -o $@ $<,"  RC    version.o")
+$(BUILD_DIR)/version.lo: $(SRC_PATH)/version.rc config-host.h
+	$(call quiet-command,$(WINDRES) -I$(BUILD_DIR) -o $@ $<,"  RC    version.lo")
 
-Makefile: $(version-obj-y)
+Makefile: $(version-obj-y) $(version-lobj-y)
 
 ######################################################################
 # Build libraries
 
-libqemuutil.a: $(util-obj-y) $(trace-obj-y) $(stub-obj-y)
+libqemustub.a: $(stub-obj-y)
+libqemuutil.a: $(util-obj-y)
+
+block-modules = $(foreach o,$(block-obj-m),"$(basename $(subst /,-,$o))",) NULL
+util/module.o-cflags = -D'CONFIG_BLOCK_MODULES=$(block-modules)'
 
 ######################################################################
 
-COMMON_LDADDS = libqemuutil.a
-
 qemu-img.o: qemu-img-cmds.h
 
-qemu-img$(EXESUF): qemu-img.o $(block-obj-y) $(crypto-obj-y) $(io-obj-y) $(qom-obj-y) $(COMMON_LDADDS)
-qemu-nbd$(EXESUF): qemu-nbd.o $(block-obj-y) $(crypto-obj-y) $(io-obj-y) $(qom-obj-y) $(COMMON_LDADDS)
-qemu-io$(EXESUF): qemu-io.o $(block-obj-y) $(crypto-obj-y) $(io-obj-y) $(qom-obj-y) $(COMMON_LDADDS)
+qemu-img$(EXESUF): qemu-img.o $(block-obj-y) libqemuutil.a libqemustub.a
+qemu-nbd$(EXESUF): qemu-nbd.o $(block-obj-y) libqemuutil.a libqemustub.a
+qemu-io$(EXESUF): qemu-io.o $(block-obj-y) libqemuutil.a libqemustub.a
 
-qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o $(COMMON_LDADDS)
+qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o
 
-fsdev/virtfs-proxy-helper$(EXESUF): fsdev/virtfs-proxy-helper.o fsdev/9p-marshal.o fsdev/9p-iov-marshal.o $(COMMON_LDADDS)
+fsdev/virtfs-proxy-helper$(EXESUF): fsdev/virtfs-proxy-helper.o fsdev/virtio-9p-marshal.o libqemuutil.a libqemustub.a
 fsdev/virtfs-proxy-helper$(EXESUF): LIBS += -lcap
 
-qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx $(SRC_PATH)/scripts/hxtool
-	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"GEN","$@")
+qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx
+	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"  GEN   $@")
 
 qemu-ga$(EXESUF): LIBS = $(LIBS_QGA)
 qemu-ga$(EXESUF): QEMU_CFLAGS += -I qga/qapi-generated
@@ -385,123 +243,70 @@ qapi-py = $(SRC_PATH)/scripts/qapi.py $(SRC_PATH)/scripts/ordereddict.py
 qga/qapi-generated/qga-qapi-types.c qga/qapi-generated/qga-qapi-types.h :\
 $(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py \
-		$(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
-		"GEN","$@")
+		$(gen-out-type) -o qga/qapi-generated -p "qga-" -i $<, \
+		"  GEN   $@")
 qga/qapi-generated/qga-qapi-visit.c qga/qapi-generated/qga-qapi-visit.h :\
 $(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py \
-		$(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
-		"GEN","$@")
+		$(gen-out-type) -o qga/qapi-generated -p "qga-" -i $<, \
+		"  GEN   $@")
 qga/qapi-generated/qga-qmp-commands.h qga/qapi-generated/qga-qmp-marshal.c :\
 $(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py \
-		$(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
-		"GEN","$@")
+		$(gen-out-type) -o qga/qapi-generated -p "qga-" -i $<, \
+		"  GEN   $@")
 
 qapi-modules = $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/qapi/common.json \
                $(SRC_PATH)/qapi/block.json $(SRC_PATH)/qapi/block-core.json \
-               $(SRC_PATH)/qapi/char.json \
-               $(SRC_PATH)/qapi/crypto.json \
-               $(SRC_PATH)/qapi/introspect.json \
-               $(SRC_PATH)/qapi/migration.json \
-               $(SRC_PATH)/qapi/net.json \
-               $(SRC_PATH)/qapi/rocker.json \
-               $(SRC_PATH)/qapi/run-state.json \
-               $(SRC_PATH)/qapi/sockets.json \
-               $(SRC_PATH)/qapi/tpm.json \
-               $(SRC_PATH)/qapi/trace.json \
-               $(SRC_PATH)/qapi/transaction.json \
-               $(SRC_PATH)/qapi/ui.json
+               $(SRC_PATH)/qapi/event.json
 
 qapi-types.c qapi-types.h :\
 $(qapi-modules) $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py \
-		$(gen-out-type) -o "." -b $<, \
-		"GEN","$@")
+		$(gen-out-type) -o "." -b -i $<, \
+		"  GEN   $@")
 qapi-visit.c qapi-visit.h :\
 $(qapi-modules) $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py \
-		$(gen-out-type) -o "." -b $<, \
-		"GEN","$@")
+		$(gen-out-type) -o "." -b -i $<, \
+		"  GEN   $@")
 qapi-event.c qapi-event.h :\
 $(qapi-modules) $(SRC_PATH)/scripts/qapi-event.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-event.py \
-		$(gen-out-type) -o "." $<, \
-		"GEN","$@")
+		$(gen-out-type) -o "." -b -i $<, \
+		"  GEN   $@")
 qmp-commands.h qmp-marshal.c :\
 $(qapi-modules) $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py \
-		$(gen-out-type) -o "." $<, \
-		"GEN","$@")
-qmp-introspect.h qmp-introspect.c :\
-$(qapi-modules) $(SRC_PATH)/scripts/qapi-introspect.py $(qapi-py)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-introspect.py \
-		$(gen-out-type) -o "." $<, \
-		"GEN","$@")
+		$(gen-out-type) -o "." -m -i $<, \
+		"  GEN   $@")
 
 QGALIB_GEN=$(addprefix qga/qapi-generated/, qga-qapi-types.h qga-qapi-visit.h qga-qmp-commands.h)
-$(qga-obj-y): $(QGALIB_GEN)
+$(qga-obj-y) qemu-ga.o: $(QGALIB_GEN)
 
-qemu-ga$(EXESUF): $(qga-obj-y) $(COMMON_LDADDS)
+qemu-ga$(EXESUF): $(qga-obj-y) libqemuutil.a libqemustub.a
 	$(call LINK, $^)
 
-ifdef QEMU_GA_MSI_ENABLED
-QEMU_GA_MSI=qemu-ga-$(ARCH).msi
-
-msi: $(QEMU_GA_MSI)
-
-$(QEMU_GA_MSI): qemu-ga.exe $(QGA_VSS_PROVIDER)
-
-$(QEMU_GA_MSI): config-host.mak
-
-$(QEMU_GA_MSI):  $(SRC_PATH)/qga/installer/qemu-ga.wxs
-	$(call quiet-command,QEMU_GA_VERSION="$(QEMU_GA_VERSION)" QEMU_GA_MANUFACTURER="$(QEMU_GA_MANUFACTURER)" QEMU_GA_DISTRO="$(QEMU_GA_DISTRO)" BUILD_DIR="$(BUILD_DIR)" \
-	wixl -o $@ $(QEMU_GA_MSI_ARCH) $(QEMU_GA_MSI_WITH_VSS) $(QEMU_GA_MSI_MINGW_DLL_PATH) $<,"WIXL","$@")
-else
-msi:
-	@echo "MSI build not configured or dependency resolution failed (reconfigure with --enable-guest-agent-msi option)"
-endif
-
-ifneq ($(EXESUF),)
-.PHONY: qemu-ga
-qemu-ga: qemu-ga$(EXESUF) $(QGA_VSS_PROVIDER) $(QEMU_GA_MSI)
-endif
-
-ifdef CONFIG_IVSHMEM
-ivshmem-client$(EXESUF): $(ivshmem-client-obj-y) $(COMMON_LDADDS)
-	$(call LINK, $^)
-ivshmem-server$(EXESUF): $(ivshmem-server-obj-y) $(COMMON_LDADDS)
-	$(call LINK, $^)
-endif
-vhost-user-scsi$(EXESUF): $(vhost-user-scsi-obj-y)
-	$(call LINK, $^)
-
-module_block.h: $(SRC_PATH)/scripts/modules/module_block.py config-host.mak
-	$(call quiet-command,$(PYTHON) $< $@ \
-	$(addprefix $(SRC_PATH)/,$(patsubst %.mo,%.c,$(block-obj-m))), \
-	"GEN","$@")
-
 clean:
 # avoid old build problems by removing potentially incorrect old files
 	rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
 	rm -f qemu-options.def
-	rm -f *.msi
-	find . \( -name '*.so' -o -name '*.dll' -o -name '*.mo' -o -name '*.[oda]' \) -type f -exec rm {} +
+	find . \( -name '*.l[oa]' -o -name '*.so' -o -name '*.dll' -o -name '*.mo' -o -name '*.[oda]' \) -type f -exec rm {} +
 	rm -f $(filter-out %.tlb,$(TOOLS)) $(HELPERS-y) qemu-ga TAGS cscope.* *.pod *~ */*~
 	rm -f fsdev/*.pod
+	rm -rf .libs */.libs
 	rm -f qemu-img-cmds.h
-	rm -f ui/shader/*-vert.h ui/shader/*-frag.h
-	@# May not be present in GENERATED_FILES
+	@# May not be present in GENERATED_HEADERS
 	rm -f trace/generated-tracers-dtrace.dtrace*
 	rm -f trace/generated-tracers-dtrace.h*
-	rm -f $(foreach f,$(GENERATED_FILES),$(f) $(f)-timestamp)
+	rm -f $(foreach f,$(GENERATED_HEADERS),$(f) $(f)-timestamp)
+	rm -f $(foreach f,$(GENERATED_SOURCES),$(f) $(f)-timestamp)
 	rm -rf qapi-generated
 	rm -rf qga/qapi-generated
 	for d in $(ALL_SUBDIRS); do \
 	if test -d $$d; then $(MAKE) -C $$d $@ || exit 1; fi; \
 	rm -f $$d/qemu-options.def; \
         done
-	rm -f $(SUBDIR_DEVICES_MAK) config-all-devices.mak
 
 VERSION ?= $(shell cat VERSION)
 
@@ -511,26 +316,22 @@ qemu-%.tar.bz2:
 	$(SRC_PATH)/scripts/make-release "$(SRC_PATH)" "$(patsubst qemu-%.tar.bz2,%,$@)"
 
 distclean: clean
-	rm -f config-host.mak config-host.h* config-host.ld $(DOCS) qemu-options.texi qemu-img-cmds.texi qemu-monitor.texi qemu-monitor-info.texi
+	rm -f config-host.mak config-host.h* config-host.ld $(DOCS) qemu-options.texi qemu-img-cmds.texi qemu-monitor.texi
 	rm -f config-all-devices.mak config-all-disas.mak config.status
 	rm -f po/*.mo tests/qemu-iotests/common.env
 	rm -f roms/seabios/config.mak roms/vgabios/config.mak
-	rm -f qemu-doc.info qemu-doc.aux qemu-doc.cp qemu-doc.cps
+	rm -f qemu-doc.info qemu-doc.aux qemu-doc.cp qemu-doc.cps qemu-doc.dvi
 	rm -f qemu-doc.fn qemu-doc.fns qemu-doc.info qemu-doc.ky qemu-doc.kys
 	rm -f qemu-doc.log qemu-doc.pdf qemu-doc.pg qemu-doc.toc qemu-doc.tp
-	rm -f qemu-doc.vr qemu-doc.txt
+	rm -f qemu-doc.vr
 	rm -f config.log
 	rm -f linux-headers/asm
-	rm -f docs/version.texi
-	rm -f docs/interop/qemu-ga-qapi.texi docs/interop/qemu-qmp-qapi.texi
-	rm -f docs/interop/qemu-qmp-ref.7 docs/interop/qemu-ga-ref.7
-	rm -f docs/interop/qemu-qmp-ref.txt docs/interop/qemu-ga-ref.txt
-	rm -f docs/interop/qemu-qmp-ref.pdf docs/interop/qemu-ga-ref.pdf
-	rm -f docs/interop/qemu-qmp-ref.html docs/interop/qemu-ga-ref.html
+	rm -f qemu-tech.info qemu-tech.aux qemu-tech.cp qemu-tech.dvi qemu-tech.fn qemu-tech.info qemu-tech.ky qemu-tech.log qemu-tech.pdf qemu-tech.pg qemu-tech.toc qemu-tech.tp qemu-tech.vr
 	for d in $(TARGET_DIRS); do \
 	rm -rf $$d || exit 1 ; \
         done
 	rm -Rf .sdk
+	if test -f pixman/config.log; then $(MAKE) -C pixman distclean; fi
 	if test -f dtc/version_gen.h; then $(MAKE) $(DTC_MAKE_ARGS) clean; fi
 
 KEYMAPS=da     en-gb  et  fr     fr-ch  is  lt  modifiers  no  pt-br  sv \
@@ -540,48 +341,37 @@ bepo    cz
 
 ifdef INSTALL_BLOBS
 BLOBS=bios.bin bios-256k.bin sgabios.bin vgabios.bin vgabios-cirrus.bin \
-vgabios-stdvga.bin vgabios-vmware.bin vgabios-qxl.bin vgabios-virtio.bin \
-acpi-dsdt.aml \
+vgabios-stdvga.bin vgabios-vmware.bin vgabios-qxl.bin \
+acpi-dsdt.aml q35-acpi-dsdt.aml \
 ppc_rom.bin openbios-sparc32 openbios-sparc64 openbios-ppc QEMU,tcx.bin QEMU,cgthree.bin \
 pxe-e1000.rom pxe-eepro100.rom pxe-ne2k_pci.rom \
 pxe-pcnet.rom pxe-rtl8139.rom pxe-virtio.rom \
 efi-e1000.rom efi-eepro100.rom efi-ne2k_pci.rom \
 efi-pcnet.rom efi-rtl8139.rom efi-virtio.rom \
-efi-e1000e.rom efi-vmxnet3.rom \
 qemu-icon.bmp qemu_logo_no_text.svg \
 bamboo.dtb petalogix-s3adsp1800.dtb petalogix-ml605.dtb \
-multiboot.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin \
-s390-ccw.img s390-netboot.img \
-spapr-rtas.bin slof.bin skiboot.lid \
+multiboot.bin linuxboot.bin kvmvapic.bin \
+s390-zipl.rom \
+s390-ccw.img \
+spapr-rtas.bin slof.bin \
 palcode-clipper \
-u-boot.e500 \
-qemu_vga.ndrv
+u-boot.e500
 else
 BLOBS=
 endif
 
 install-doc: $(DOCS)
 	$(INSTALL_DIR) "$(DESTDIR)$(qemu_docdir)"
-	$(INSTALL_DATA) qemu-doc.html "$(DESTDIR)$(qemu_docdir)"
-	$(INSTALL_DATA) qemu-doc.txt "$(DESTDIR)$(qemu_docdir)"
-	$(INSTALL_DATA) docs/interop/qemu-qmp-ref.html "$(DESTDIR)$(qemu_docdir)"
-	$(INSTALL_DATA) docs/interop/qemu-qmp-ref.txt "$(DESTDIR)$(qemu_docdir)"
+	$(INSTALL_DATA) qemu-doc.html  qemu-tech.html "$(DESTDIR)$(qemu_docdir)"
+	$(INSTALL_DATA) qmp-commands.txt "$(DESTDIR)$(qemu_docdir)"
 ifdef CONFIG_POSIX
 	$(INSTALL_DIR) "$(DESTDIR)$(mandir)/man1"
 	$(INSTALL_DATA) qemu.1 "$(DESTDIR)$(mandir)/man1"
-	$(INSTALL_DIR) "$(DESTDIR)$(mandir)/man7"
-	$(INSTALL_DATA) docs/interop/qemu-qmp-ref.7 "$(DESTDIR)$(mandir)/man7"
 ifneq ($(TOOLS),)
 	$(INSTALL_DATA) qemu-img.1 "$(DESTDIR)$(mandir)/man1"
 	$(INSTALL_DIR) "$(DESTDIR)$(mandir)/man8"
 	$(INSTALL_DATA) qemu-nbd.8 "$(DESTDIR)$(mandir)/man8"
 endif
-ifneq (,$(findstring qemu-ga,$(TOOLS)))
-	$(INSTALL_DATA) qemu-ga.8 "$(DESTDIR)$(mandir)/man8"
-	$(INSTALL_DATA) docs/interop/qemu-ga-ref.html "$(DESTDIR)$(qemu_docdir)"
-	$(INSTALL_DATA) docs/interop/qemu-ga-ref.txt "$(DESTDIR)$(qemu_docdir)"
-	$(INSTALL_DATA) docs/interop/qemu-ga-ref.7 "$(DESTDIR)$(mandir)/man7"
-endif
 endif
 ifdef CONFIG_VIRTFS
 	$(INSTALL_DIR) "$(DESTDIR)$(mandir)/man1"
@@ -598,10 +388,16 @@ ifneq (,$(findstring qemu-ga,$(TOOLS)))
 endif
 endif
 
+install-confdir:
+	$(INSTALL_DIR) "$(DESTDIR)$(qemu_confdir)"
 
-install: all $(if $(BUILD_DOCS),install-doc) install-datadir install-localstatedir
+install-sysconfig: install-datadir install-confdir
+	$(INSTALL_DATA) $(SRC_PATH)/sysconfigs/target/target-x86_64.conf "$(DESTDIR)$(qemu_confdir)"
+
+install: all $(if $(BUILD_DOCS),install-doc) install-sysconfig \
+install-datadir install-localstatedir
 ifneq ($(TOOLS),)
-	$(call install-prog,$(subst qemu-ga,qemu-ga$(EXESUF),$(TOOLS)),$(DESTDIR)$(bindir))
+	$(call install-prog,$(TOOLS),$(DESTDIR)$(bindir))
 endif
 ifneq ($(CONFIG_MODULES),)
 	$(INSTALL_DIR) "$(DESTDIR)$(qemu_moddir)"
@@ -626,7 +422,7 @@ endif
 	set -e; for x in $(KEYMAPS); do \
 		$(INSTALL_DATA) $(SRC_PATH)/pc-bios/keymaps/$$x "$(DESTDIR)$(qemu_datadir)/keymaps"; \
 	done
-	$(INSTALL_DATA) $(BUILD_DIR)/trace-events-all "$(DESTDIR)$(qemu_datadir)/trace-events-all"
+	$(INSTALL_DATA) $(SRC_PATH)/trace-events "$(DESTDIR)$(qemu_datadir)/trace-events"
 	for d in $(TARGET_DIRS); do \
 	$(MAKE) $(SUBDIR_MAKEFLAGS) TARGET_DIR=$$d/ -C $$d $@ || exit 1 ; \
         done
@@ -635,108 +431,83 @@ endif
 test speed: all
 	$(MAKE) -C tests/tcg $@
 
-.PHONY: ctags
-ctags:
-	rm -f tags
-	find "$(SRC_PATH)" -name '*.[hc]' -exec ctags --append {} +
-
 .PHONY: TAGS
 TAGS:
-	rm -f TAGS
+	rm -f $@
 	find "$(SRC_PATH)" -name '*.[hc]' -exec etags --append {} +
 
 cscope:
-	rm -f "$(SRC_PATH)"/cscope.*
-	find "$(SRC_PATH)/" -name "*.[chsS]" -print | sed 's,^\./,,' > "$(SRC_PATH)/cscope.files"
-	cscope -b -i"$(SRC_PATH)/cscope.files"
-
-# opengl shader programs
-ui/shader/%-vert.h: $(SRC_PATH)/ui/shader/%.vert $(SRC_PATH)/scripts/shaderinclude.pl
-	@mkdir -p $(dir $@)
-	$(call quiet-command,\
-		perl $(SRC_PATH)/scripts/shaderinclude.pl $< > $@,\
-		"VERT","$@")
-
-ui/shader/%-frag.h: $(SRC_PATH)/ui/shader/%.frag $(SRC_PATH)/scripts/shaderinclude.pl
-	@mkdir -p $(dir $@)
-	$(call quiet-command,\
-		perl $(SRC_PATH)/scripts/shaderinclude.pl $< > $@,\
-		"FRAG","$@")
-
-ui/console-gl.o: $(SRC_PATH)/ui/console-gl.c \
-	ui/shader/texture-blit-vert.h ui/shader/texture-blit-frag.h
+	rm -f ./cscope.*
+	find "$(SRC_PATH)" -name "*.[chsS]" -print | sed 's,^\./,,' > ./cscope.files
+	cscope -b
 
 # documentation
 MAKEINFO=makeinfo
-MAKEINFOINCLUDES= -I docs -I $(<D) -I $(@D)
-MAKEINFOFLAGS=--no-split --number-sections $(MAKEINFOINCLUDES)
-TEXI2PODFLAGS=$(MAKEINFOINCLUDES) "-DVERSION=$(VERSION)"
-TEXI2PDFFLAGS=$(if $(V),,--quiet) -I $(SRC_PATH) $(MAKEINFOINCLUDES)
+MAKEINFOFLAGS=--no-headers --no-split --number-sections
+TEXIFLAG=$(if $(V),,--quiet)
+%.dvi: %.texi
+	$(call quiet-command,texi2dvi $(TEXIFLAG) -I . $<,"  GEN   $@")
 
-docs/version.texi: $(SRC_PATH)/VERSION
-	$(call quiet-command,echo "@set VERSION $(VERSION)" > $@,"GEN","$@")
+%.html: %.texi
+	$(call quiet-command,LC_ALL=C $(MAKEINFO) $(MAKEINFOFLAGS) --html $< -o $@, \
+	"  GEN   $@")
 
-%.html: %.texi docs/version.texi
-	$(call quiet-command,LC_ALL=C $(MAKEINFO) $(MAKEINFOFLAGS) --no-headers \
-	--html $< -o $@,"GEN","$@")
+%.info: %.texi
+	$(call quiet-command,$(MAKEINFO) $< -o $@,"  GEN   $@")
 
-%.info: %.texi docs/version.texi
-	$(call quiet-command,$(MAKEINFO) $(MAKEINFOFLAGS) $< -o $@,"GEN","$@")
+%.pdf: %.texi
+	$(call quiet-command,texi2pdf $(TEXIFLAG) -I . $<,"  GEN   $@")
 
-%.txt: %.texi docs/version.texi
-	$(call quiet-command,LC_ALL=C $(MAKEINFO) $(MAKEINFOFLAGS) --no-headers \
-	--plaintext $< -o $@,"GEN","$@")
+qemu-options.texi: $(SRC_PATH)/qemu-options.hx
+	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"  GEN   $@")
 
-%.pdf: %.texi docs/version.texi
-	$(call quiet-command,texi2pdf $(TEXI2PDFFLAGS) $< -o $@,"GEN","$@")
+qemu-monitor.texi: $(SRC_PATH)/hmp-commands.hx
+	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"  GEN   $@")
 
-qemu-options.texi: $(SRC_PATH)/qemu-options.hx $(SRC_PATH)/scripts/hxtool
-	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"GEN","$@")
+qmp-commands.txt: $(SRC_PATH)/qmp-commands.hx
+	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -q < $< > $@,"  GEN   $@")
 
-qemu-monitor.texi: $(SRC_PATH)/hmp-commands.hx $(SRC_PATH)/scripts/hxtool
-	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"GEN","$@")
+qemu-img-cmds.texi: $(SRC_PATH)/qemu-img-cmds.hx
+	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"  GEN   $@")
 
-qemu-monitor-info.texi: $(SRC_PATH)/hmp-commands-info.hx $(SRC_PATH)/scripts/hxtool
-	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"GEN","$@")
+qemu.1: qemu-doc.texi qemu-options.texi qemu-monitor.texi
+	$(call quiet-command, \
+	  perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< qemu.pod && \
+	  $(POD2MAN) --section=1 --center=" " --release=" " qemu.pod > $@, \
+	  "  GEN   $@")
 
-qemu-img-cmds.texi: $(SRC_PATH)/qemu-img-cmds.hx $(SRC_PATH)/scripts/hxtool
-	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"GEN","$@")
+qemu-img.1: qemu-img.texi qemu-img-cmds.texi
+	$(call quiet-command, \
+	  perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< qemu-img.pod && \
+	  $(POD2MAN) --section=1 --center=" " --release=" " qemu-img.pod > $@, \
+	  "  GEN   $@")
 
-docs/interop/qemu-qmp-qapi.texi docs/interop/qemu-ga-qapi.texi: $(SRC_PATH)/scripts/qapi2texi.py $(qapi-py)
-
-docs/interop/qemu-qmp-qapi.texi: $(qapi-modules)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi2texi.py $< > $@,"GEN","$@")
-
-docs/interop/qemu-ga-qapi.texi: $(SRC_PATH)/qga/qapi-schema.json
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi2texi.py $< > $@,"GEN","$@")
-
-qemu.1: qemu-doc.texi qemu-options.texi qemu-monitor.texi qemu-monitor-info.texi
-qemu.1: qemu-option-trace.texi
-qemu-img.1: qemu-img.texi qemu-option-trace.texi qemu-img-cmds.texi
 fsdev/virtfs-proxy-helper.1: fsdev/virtfs-proxy-helper.texi
-qemu-nbd.8: qemu-nbd.texi qemu-option-trace.texi
-qemu-ga.8: qemu-ga.texi
+	$(call quiet-command, \
+	  perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< fsdev/virtfs-proxy-helper.pod && \
+	  $(POD2MAN) --section=1 --center=" " --release=" " fsdev/virtfs-proxy-helper.pod > $@, \
+	  "  GEN   $@")
 
-html: qemu-doc.html docs/interop/qemu-qmp-ref.html docs/interop/qemu-ga-ref.html
-info: qemu-doc.info docs/interop/qemu-qmp-ref.info docs/interop/qemu-ga-ref.info
-pdf: qemu-doc.pdf docs/interop/qemu-qmp-ref.pdf docs/interop/qemu-ga-ref.pdf
-txt: qemu-doc.txt docs/interop/qemu-qmp-ref.txt docs/interop/qemu-ga-ref.txt
+qemu-nbd.8: qemu-nbd.texi
+	$(call quiet-command, \
+	  perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< qemu-nbd.pod && \
+	  $(POD2MAN) --section=8 --center=" " --release=" " qemu-nbd.pod > $@, \
+	  "  GEN   $@")
 
-qemu-doc.html qemu-doc.info qemu-doc.pdf qemu-doc.txt: \
-	qemu-img.texi qemu-nbd.texi qemu-options.texi qemu-option-trace.texi \
-	qemu-monitor.texi qemu-img-cmds.texi qemu-ga.texi \
-	qemu-monitor-info.texi
+kvm_stat.1: scripts/kvm/kvm_stat.texi
+	$(call quiet-command, \
+	  perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< kvm_stat.pod && \
+	  $(POD2MAN) --section=1 --center=" " --release=" " kvm_stat.pod > $@, \
+	  "  GEN   $@")
 
-docs/interop/qemu-ga-ref.dvi docs/interop/qemu-ga-ref.html \
-    docs/interop/qemu-ga-ref.info docs/interop/qemu-ga-ref.pdf \
-    docs/interop/qemu-ga-ref.txt docs/interop/qemu-ga-ref.7: \
-	docs/interop/qemu-ga-ref.texi docs/interop/qemu-ga-qapi.texi
-
-docs/interop/qemu-qmp-ref.dvi docs/interop/qemu-qmp-ref.html \
-    docs/interop/qemu-qmp-ref.info docs/interop/qemu-qmp-ref.pdf \
-    docs/interop/qemu-qmp-ref.txt docs/interop/qemu-qmp-ref.7: \
-	docs/interop/qemu-qmp-ref.texi docs/interop/qemu-qmp-qapi.texi
+dvi: qemu-doc.dvi qemu-tech.dvi
+html: qemu-doc.html qemu-tech.html
+info: qemu-doc.info qemu-tech.info
+pdf: qemu-doc.pdf qemu-tech.pdf
 
+qemu-doc.dvi qemu-doc.html qemu-doc.info qemu-doc.pdf: \
+	qemu-img.texi qemu-nbd.texi qemu-options.texi \
+	qemu-monitor.texi qemu-img-cmds.texi
 
 ifdef CONFIG_WIN32
 
@@ -786,7 +557,6 @@ endif # SIGNCODE
                 $(if $(DLL_PATH),-DDLLDIR="$(DLL_PATH)") \
                 -DSRCDIR="$(SRC_PATH)" \
                 -DOUTFILE="$(INSTALLER)" \
-                -DDISPLAYVERSION="$(VERSION)" \
                 $(SRC_PATH)/qemu.nsi
 	rm -r ${INSTDIR}
 ifdef SIGNCODE
@@ -796,55 +566,10 @@ endif # CONFIG_WIN
 
 # Add a dependency on the generated files, so that they are always
 # rebuilt before other object files
-ifneq ($(wildcard config-host.mak),)
-ifneq ($(filter-out $(UNCHECKED_GOALS),$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
-Makefile: $(GENERATED_FILES)
+ifneq ($(filter-out %clean,$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
+Makefile: $(GENERATED_HEADERS)
 endif
-endif
-
-.SECONDARY: $(TRACE_HEADERS) $(TRACE_HEADERS:%=%-timestamp) \
-	$(TRACE_SOURCES) $(TRACE_SOURCES:%=%-timestamp) \
-	$(TRACE_DTRACE) $(TRACE_DTRACE:%=%-timestamp)
 
 # Include automatically generated dependency files
 # Dependencies in Makefile.objs files come from our recursive subdir rules
 -include $(wildcard *.d tests/*.d)
-
-include $(SRC_PATH)/tests/docker/Makefile.include
-
-.PHONY: help
-help:
-	@echo  'Generic targets:'
-	@echo  '  all             - Build all'
-	@echo  '  dir/file.o      - Build specified target only'
-	@echo  '  install         - Install QEMU, documentation and tools'
-	@echo  '  ctags/TAGS      - Generate tags file for editors'
-	@echo  '  cscope          - Generate cscope index'
-	@echo  ''
-	@$(if $(TARGET_DIRS), \
-		echo 'Architecture specific targets:'; \
-		$(foreach t, $(TARGET_DIRS), \
-		printf "  %-30s - Build for %s\\n" $(patsubst %,subdir-%,$(t)) $(t);) \
-		echo '')
-	@echo  'Cleaning targets:'
-	@echo  '  clean           - Remove most generated files but keep the config'
-	@echo  '  distclean       - Remove all generated files'
-	@echo  '  dist            - Build a distributable tarball'
-	@echo  ''
-	@echo  'Test targets:'
-	@echo  '  check           - Run all tests (check-help for details)'
-	@echo  '  docker          - Help about targets running tests inside Docker containers'
-	@echo  ''
-	@echo  'Documentation targets:'
-	@echo  '  html info pdf txt'
-	@echo  '                  - Build documentation in specified format'
-	@echo  ''
-ifdef CONFIG_WIN32
-	@echo  'Windows targets:'
-	@echo  '  installer       - Build NSIS-based installer for QEMU'
-ifdef QEMU_GA_MSI_ENABLED
-	@echo  '  msi             - Build MSI-based installer for qemu-ga'
-endif
-	@echo  ''
-endif
-	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'

Makefile.objs

@@ -1,37 +1,37 @@
 #######################################################################
 # 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/
+stub-obj-y = stubs/
+util-obj-y = util/ qobject/ qapi/ qapi-types.o qapi-visit.o qapi-event.o
 
 #######################################################################
 # 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/ scsi/
+block-obj-y = async.o thread-pool.o
+block-obj-y += nbd.o block.o blockjob.o
+block-obj-y += main-loop.o iohandler.o qemu-timer.o
+block-obj-$(CONFIG_POSIX) += aio-posix.o
+block-obj-$(CONFIG_WIN32) += aio-win32.o
+block-obj-y += block/
 block-obj-y += qemu-io-cmds.o
-block-obj-$(CONFIG_REPLICATION) += replication.o
+
+block-obj-y += qemu-coroutine.o qemu-coroutine-lock.o qemu-coroutine-io.o
+block-obj-y += qemu-coroutine-sleep.o
+block-obj-y += coroutine-$(CONFIG_COROUTINE_BACKEND).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/
+######################################################################
+# smartcard
 
-#######################################################################
-# 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/
+libcacard-y += libcacard/cac.o libcacard/event.o
+libcacard-y += libcacard/vcard.o libcacard/vreader.o
+libcacard-y += libcacard/vcard_emul_nss.o
+libcacard-y += libcacard/vcard_emul_type.o
+libcacard-y += libcacard/card_7816.o
+libcacard-y += libcacard/vcardt.o
+libcacard/vcard_emul_nss.o-cflags := $(NSS_CFLAGS)
+libcacard/vcard_emul_nss.o-libs := $(NSS_LIBS)
 
 ######################################################################
 # Target independent part of system emulation. The long term path is to
@@ -40,7 +40,7 @@ io-obj-y = io/
 
 ifeq ($(CONFIG_SOFTMMU),y)
 common-obj-y = blockdev.o blockdev-nbd.o block/
-common-obj-y += bootdevice.o iothread.o
+common-obj-y += iothread.o
 common-obj-y += net/
 common-obj-y += qdev-monitor.o device-hotplug.o
 common-obj-$(CONFIG_WIN32) += os-win32.o
@@ -49,11 +49,15 @@ common-obj-$(CONFIG_POSIX) += os-posix.o
 common-obj-$(CONFIG_LINUX) += fsdev/
 
 common-obj-y += migration/
+common-obj-y += qemu-char.o #aio.o
+common-obj-y += page_cache.o
+common-obj-y += qjson.o
+
+common-obj-$(CONFIG_SPICE) += spice-qemu-char.o
 
 common-obj-y += audio/
 common-obj-y += hw/
-
-common-obj-y += replay/
+common-obj-y += accel.o
 
 common-obj-y += ui/
 common-obj-y += bt-host.o bt-vhci.o
@@ -67,25 +71,22 @@ 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
-qemu-seccomp.o-cflags := $(SECCOMP_CFLAGS)
-qemu-seccomp.o-libs := $(SECCOMP_LIBS)
 
-common-obj-$(CONFIG_FDT) += device_tree.o
+common-obj-$(CONFIG_SMARTCARD_NSS) += $(libcacard-y)
 
 ######################################################################
 # 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 += qemu-log.o
+common-obj-y += tcg-runtime.o
 common-obj-y += hw/
 common-obj-y += qom/
 common-obj-y += disas/
@@ -93,6 +94,7 @@ common-obj-y += disas/
 ######################################################################
 # Resource file for Windows executables
 version-obj-$(CONFIG_WIN32) += $(BUILD_DIR)/version.o
+version-lobj-$(CONFIG_WIN32) += $(BUILD_DIR)/version.lo
 
 ######################################################################
 # tracing
@@ -106,76 +108,3 @@ target-obj-y += trace/
 # 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-$(CONFIG_IVSHMEM) = contrib/ivshmem-client/
-ivshmem-server-obj-$(CONFIG_IVSHMEM) = contrib/ivshmem-server/
-libvhost-user-obj-y = contrib/libvhost-user/
-vhost-user-scsi.o-cflags := $(LIBISCSI_CFLAGS)
-vhost-user-scsi.o-libs := $(LIBISCSI_LIBS)
-vhost-user-scsi-obj-y = contrib/vhost-user-scsi/
-vhost-user-scsi-obj-y += contrib/libvhost-user/libvhost-user.o
-
-######################################################################
-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 += 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 += hw/ide
-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-subdirs += accel/tcg
-trace-events-subdirs += accel/kvm
-trace-events-subdirs += nbd
-
-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

@@ -1,17 +1,15 @@
 # -*- Mode: makefile -*-
 
-BUILD_DIR?=$(CURDIR)/..
-
 include ../config-host.mak
 include config-target.mak
 include config-devices.mak
 include $(SRC_PATH)/rules.mak
 
-$(call set-vpath, $(SRC_PATH):$(BUILD_DIR))
+$(call set-vpath, $(SRC_PATH))
 ifdef CONFIG_LINUX
 QEMU_CFLAGS += -I../linux-headers
 endif
-QEMU_CFLAGS += -I.. -I$(SRC_PATH)/target/$(TARGET_BASE_ARCH) -DNEED_CPU_H
+QEMU_CFLAGS += -I.. -I$(SRC_PATH)/target-$(TARGET_BASE_ARCH) -DNEED_CPU_H
 
 QEMU_CFLAGS+=-I$(SRC_PATH)/include
 
@@ -26,7 +24,7 @@ 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)")
+	$(call quiet-command,$(OBJCOPY) --subsystem console $(QEMU_PROGW) $(QEMU_PROG),"  GEN   $(TARGET_DIR)$(QEMU_PROG)")
 QEMU_PROG_BUILD = $(QEMU_PROGW)
 else
 QEMU_PROG_BUILD = $(QEMU_PROG)
@@ -36,6 +34,10 @@ endif
 PROGS=$(QEMU_PROG) $(QEMU_PROGW)
 STPFILES=
 
+ifdef CONFIG_LINUX_USER
+PROGS+=$(QEMU_PROG)-binfmt
+endif
+
 config-target.h: config-target.h-timestamp
 config-target.h-timestamp: config-target.mak
 
@@ -48,41 +50,34 @@ else
 TARGET_TYPE=system
 endif
 
-tracetool-y = $(SRC_PATH)/scripts/tracetool.py
-tracetool-y += $(shell find $(SRC_PATH)/scripts/tracetool -name "*.py")
-
-$(QEMU_PROG).stp-installed: $(BUILD_DIR)/trace-events-all $(tracetool-y)
+$(QEMU_PROG).stp-installed: $(SRC_PATH)/trace-events
 	$(call quiet-command,$(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")
+		< $< > $@,"  GEN   $(TARGET_DIR)$(QEMU_PROG).stp-installed")
 
-$(QEMU_PROG).stp: $(BUILD_DIR)/trace-events-all $(tracetool-y)
+$(QEMU_PROG).stp: $(SRC_PATH)/trace-events
 	$(call quiet-command,$(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")
+		< $< > $@,"  GEN   $(TARGET_DIR)$(QEMU_PROG).stp")
 
-$(QEMU_PROG)-simpletrace.stp: $(BUILD_DIR)/trace-events-all $(tracetool-y)
+$(QEMU_PROG)-simpletrace.stp: $(SRC_PATH)/trace-events
 	$(call quiet-command,$(TRACETOOL) \
-		--group=all \
 		--format=simpletrace-stap \
 		--backends=$(TRACE_BACKENDS) \
 		--probe-prefix=qemu.$(TARGET_TYPE).$(TARGET_NAME) \
-		$< > $@,"GEN","$(TARGET_DIR)$(QEMU_PROG)-simpletrace.stp")
+		< $< > $@,"  GEN   $(TARGET_DIR)$(QEMU_PROG)-simpletrace.stp")
 
 else
 stap:
 endif
-.PHONY: stap
 
 all: $(PROGS) stap
 
@@ -91,16 +86,15 @@ all: $(PROGS) stap
 
 #########################################################
 # cpu emulator library
-obj-y += exec.o
-obj-y += accel/
-obj-$(CONFIG_TCG) += tcg/tcg.o tcg/tcg-op.o tcg/optimize.o
-obj-$(CONFIG_TCG) += tcg/tcg-common.o
-obj-$(CONFIG_TCG_INTERPRETER) += tcg/tci.o
+obj-y = exec.o translate-all.o cpu-exec.o
+obj-y += tcg/tcg.o tcg/tcg-op.o tcg/optimize.o
+obj-$(CONFIG_TCG_INTERPRETER) += tci.o
 obj-$(CONFIG_TCG_INTERPRETER) += disas/tci.o
 obj-y += fpu/softfloat.o
-obj-y += target/$(TARGET_BASE_ARCH)/
+obj-y += target-$(TARGET_BASE_ARCH)/
 obj-y += disas.o
 obj-$(call notempty,$(TARGET_XML_FILES)) += gdbstub-xml.o
+obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
 
 obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/decContext.o
 obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/decNumber.o
@@ -113,12 +107,12 @@ obj-$(CONFIG_LIBDECNUMBER) += libdecnumber/dpd/decimal128.o
 
 ifdef CONFIG_LINUX_USER
 
-QEMU_CFLAGS+=-I$(SRC_PATH)/linux-user/$(TARGET_ABI_DIR) \
-             -I$(SRC_PATH)/linux-user/host/$(ARCH) \
-             -I$(SRC_PATH)/linux-user
+QEMU_CFLAGS+=-I$(SRC_PATH)/linux-user/$(TARGET_ABI_DIR) -I$(SRC_PATH)/linux-user
 
 obj-y += linux-user/
-obj-y += gdbstub.o thunk.o
+obj-y += gdbstub.o thunk.o user-exec.o
+
+obj-binfmt-y += linux-user/
 
 endif #CONFIG_LINUX_USER
 
@@ -131,7 +125,7 @@ QEMU_CFLAGS+=-I$(SRC_PATH)/bsd-user -I$(SRC_PATH)/bsd-user/$(TARGET_ABI_DIR) \
 			 -I$(SRC_PATH)/bsd-user/$(HOST_VARIANT_DIR)
 
 obj-y += bsd-user/
-obj-y += gdbstub.o
+obj-y += gdbstub.o user-exec.o
 
 endif #CONFIG_BSD_USER
 
@@ -139,13 +133,20 @@ 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
+obj-y += qtest.o bootdevice.o
 obj-y += hw/
-obj-y += memory.o
+obj-$(CONFIG_FDT) += device_tree.o
+obj-$(CONFIG_KVM) += kvm-all.o
+obj-y += memory.o savevm.o cputlb.o
 obj-y += memory_mapping.o
 obj-y += dump.o
-obj-y += migration/ram.o
-LIBS := $(libs_softmmu) $(LIBS)
+LIBS+=$(libs_softmmu)
+
+# xen support
+obj-$(CONFIG_XEN) += xen-common.o
+obj-$(CONFIG_XEN_I386) += xen-hvm.o xen-mapcache.o
+obj-$(call lnot,$(CONFIG_XEN)) += xen-common-stub.o
+obj-$(call lnot,$(CONFIG_XEN_I386)) += xen-hvm-stub.o
 
 # Hardware support
 ifeq ($(TARGET_NAME), sparc64)
@@ -154,67 +155,58 @@ else
 obj-y += hw/$(TARGET_BASE_ARCH)/
 endif
 
-GENERATED_FILES += hmp-commands.h hmp-commands-info.h
+GENERATED_HEADERS += hmp-commands.h qmp-commands-old.h
 
 endif # CONFIG_SOFTMMU
 
 # Workaround for http://gcc.gnu.org/PR55489, see configure.
 %/translate.o: QEMU_CFLAGS += $(TRANSLATE_OPT_CFLAGS)
 
+ifdef CONFIG_LINUX_USER
+dummy := $(call unnest-vars,,obj-y obj-binfmt-y)
+else
 dummy := $(call unnest-vars,,obj-y)
+endif
 all-obj-y := $(obj-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) += $(io-obj-y)
+all-obj-$(CONFIG_SOFTMMU) += $(block-obj-y)
 
 $(QEMU_PROG_BUILD): config-devices.mak
 
-COMMON_LDADDS = ../libqemuutil.a
-
 # build either PROG or PROGW
-$(QEMU_PROG_BUILD): $(all-obj-y) $(COMMON_LDADDS)
+$(QEMU_PROG_BUILD): $(all-obj-y) ../libqemuutil.a ../libqemustub.a
 	$(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_PROG)-binfmt: $(obj-binfmt-y)
+	$(call LINK,$^)
 
 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)$@")
+	$(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.h: $(SRC_PATH)/hmp-commands.hx
+	$(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)$@")
+qmp-commands-old.h: $(SRC_PATH)/qmp-commands.hx
+	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"  GEN   $(TARGET_DIR)$@")
 
-clean: clean-target
+clean:
 	rm -f *.a *~ $(PROGS)
 	rm -f $(shell find . -name '*.[od]')
-	rm -f hmp-commands.h gdbstub-xml.c
+	rm -f hmp-commands.h qmp-commands-old.h gdbstub-xml.c
 ifdef CONFIG_TRACE_SYSTEMTAP
 	rm -f *.stp
 endif
@@ -229,5 +221,5 @@ ifdef CONFIG_TRACE_SYSTEMTAP
 	$(INSTALL_DATA) $(QEMU_PROG)-simpletrace.stp "$(DESTDIR)$(qemu_datadir)/../systemtap/tapset/$(QEMU_PROG)-simpletrace.stp"
 endif
 
-GENERATED_FILES += config-target.h
-Makefile: $(GENERATED_FILES)
+GENERATED_HEADERS += config-target.h
+Makefile: $(GENERATED_HEADERS)

README

@@ -1,106 +1,3 @@
-         QEMU README
-         ===========
+Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org
 
-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
+- QEMU team

VERSION

@@ -1 +1 @@
-2.10.50
+2.3.1

accel.c

@@ -23,7 +23,6 @@
  * THE SOFTWARE.
  */
 
-#include "qemu/osdep.h"
 #include "sysemu/accel.h"
 #include "hw/boards.h"
 #include "qemu-common.h"
@@ -33,7 +32,16 @@
 #include "sysemu/qtest.h"
 #include "hw/xen/xen.h"
 #include "qom/object.h"
-#include "qemu/error-report.h"
+#include "hw/boards.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,
@@ -68,22 +76,21 @@ static int accel_init_machine(AccelClass *acc, MachineState *ms)
     return ret;
 }
 
-void configure_accelerator(MachineState *ms)
+int configure_accelerator(MachineState *ms)
 {
-    const char *accel, *p;
+    const char *p;
     char buf[10];
     int ret;
     bool accel_initialised = false;
     bool init_failed = false;
     AccelClass *acc = NULL;
 
-    accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
-    if (accel == NULL) {
+    p = qemu_opt_get(qemu_get_machine_opts(), "accel");
+    if (p == NULL) {
         /* Use the default "accelerator", tcg */
-        accel = "tcg";
+        p = "tcg";
     }
 
-    p = accel;
     while (!accel_initialised && *p != '\0') {
         if (*p == ':') {
             p++;
@@ -91,6 +98,7 @@ void configure_accelerator(MachineState *ms)
         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()) {
@@ -101,8 +109,9 @@ void configure_accelerator(MachineState *ms)
         ret = accel_init_machine(acc, ms);
         if (ret < 0) {
             init_failed = true;
-            error_report("failed to initialize %s: %s",
-                         acc->name, strerror(-ret));
+            fprintf(stderr, "failed to initialize %s: %s\n",
+                    acc->name,
+                    strerror(-ret));
         } else {
             accel_initialised = true;
         }
@@ -110,25 +119,39 @@ void configure_accelerator(MachineState *ms)
 
     if (!accel_initialised) {
         if (!init_failed) {
-            error_report("-machine accel=%s: No accelerator found", accel);
+            fprintf(stderr, "No accelerator found!\n");
         }
         exit(1);
     }
 
     if (init_failed) {
-        error_report("Back to %s accelerator", acc->name);
+        fprintf(stderr, "Back to %s accelerator.\n", acc->name);
     }
+
+    return !accel_initialised;
 }
 
-void accel_register_compat_props(AccelState *accel)
+
+static void tcg_accel_class_init(ObjectClass *oc, void *data)
 {
-    AccelClass *class = ACCEL_GET_CLASS(accel);
-    register_compat_props_array(class->global_props);
+    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);

accel/Makefile.objs

@@ -1,4 +0,0 @@
-obj-$(CONFIG_SOFTMMU) += accel.o
-obj-y += kvm/
-obj-$(CONFIG_TCG) += tcg/
-obj-y += stubs/

accel/kvm/Makefile.objs

@@ -1 +0,0 @@
-obj-$(CONFIG_KVM) += kvm-all.o

accel/kvm/trace-events

@@ -1,15 +0,0 @@
-# Trace events for debugging and performance instrumentation
-
-# kvm-all.c
-kvm_ioctl(int type, void *arg) "type 0x%x, arg %p"
-kvm_vm_ioctl(int type, void *arg) "type 0x%x, arg %p"
-kvm_vcpu_ioctl(int cpu_index, int type, void *arg) "cpu_index %d, type 0x%x, arg %p"
-kvm_run_exit(int cpu_index, uint32_t reason) "cpu_index %d, reason %d"
-kvm_device_ioctl(int fd, int type, void *arg) "dev fd %d, type 0x%x, arg %p"
-kvm_failed_reg_get(uint64_t id, const char *msg) "Warning: Unable to retrieve ONEREG %" PRIu64 " from KVM: %s"
-kvm_failed_reg_set(uint64_t id, const char *msg) "Warning: Unable to set ONEREG %" PRIu64 " to KVM: %s"
-kvm_irqchip_commit_routes(void) ""
-kvm_irqchip_add_msi_route(char *name, int vector, int virq) "dev %s vector %d virq %d"
-kvm_irqchip_update_msi_route(int virq) "Updating MSI route virq=%d"
-kvm_irqchip_release_virq(int virq) "virq %d"
-

accel/stubs/Makefile.objs

@@ -1,3 +0,0 @@
-obj-$(call lnot,$(CONFIG_HAX)) += hax-stub.o
-obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
-obj-$(call lnot,$(CONFIG_TCG)) += tcg-stub.o

accel/stubs/hax-stub.c

@@ -1,34 +0,0 @@
-/*
- * QEMU HAXM support
- *
- * Copyright (c) 2015, Intel Corporation
- *
- * Copyright 2016 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "cpu.h"
-#include "sysemu/hax.h"
-
-int hax_sync_vcpus(void)
-{
-    return 0;
-}
-
-int hax_init_vcpu(CPUState *cpu)
-{
-    return -ENOSYS;
-}
-
-int hax_smp_cpu_exec(CPUState *cpu)
-{
-    return -ENOSYS;
-}

accel/stubs/kvm-stub.c

@@ -1,163 +0,0 @@
-/*
- * QEMU KVM stub
- *
- * Copyright Red Hat, Inc. 2010
- *
- * Author: 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 "qemu-common.h"
-#include "cpu.h"
-#include "sysemu/kvm.h"
-
-#ifndef CONFIG_USER_ONLY
-#include "hw/pci/msi.h"
-#endif
-
-KVMState *kvm_state;
-bool kvm_kernel_irqchip;
-bool kvm_async_interrupts_allowed;
-bool kvm_eventfds_allowed;
-bool kvm_irqfds_allowed;
-bool kvm_resamplefds_allowed;
-bool kvm_msi_via_irqfd_allowed;
-bool kvm_gsi_routing_allowed;
-bool kvm_gsi_direct_mapping;
-bool kvm_allowed;
-bool kvm_readonly_mem_allowed;
-bool kvm_ioeventfd_any_length_allowed;
-bool kvm_msi_use_devid;
-
-int kvm_destroy_vcpu(CPUState *cpu)
-{
-    return -ENOSYS;
-}
-
-int kvm_init_vcpu(CPUState *cpu)
-{
-    return -ENOSYS;
-}
-
-void kvm_flush_coalesced_mmio_buffer(void)
-{
-}
-
-void kvm_cpu_synchronize_state(CPUState *cpu)
-{
-}
-
-void kvm_cpu_synchronize_post_reset(CPUState *cpu)
-{
-}
-
-void kvm_cpu_synchronize_post_init(CPUState *cpu)
-{
-}
-
-int kvm_cpu_exec(CPUState *cpu)
-{
-    abort();
-}
-
-int kvm_has_sync_mmu(void)
-{
-    return 0;
-}
-
-int kvm_has_many_ioeventfds(void)
-{
-    return 0;
-}
-
-int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
-{
-    return -ENOSYS;
-}
-
-int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
-                          target_ulong len, int type)
-{
-    return -EINVAL;
-}
-
-int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
-                          target_ulong len, int type)
-{
-    return -EINVAL;
-}
-
-void kvm_remove_all_breakpoints(CPUState *cpu)
-{
-}
-
-int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
-{
-    return 1;
-}
-
-int kvm_on_sigbus(int code, void *addr)
-{
-    return 1;
-}
-
-#ifndef CONFIG_USER_ONLY
-int kvm_irqchip_add_msi_route(KVMState *s, int vector, PCIDevice *dev)
-{
-    return -ENOSYS;
-}
-
-void kvm_init_irq_routing(KVMState *s)
-{
-}
-
-void kvm_irqchip_release_virq(KVMState *s, int virq)
-{
-}
-
-int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
-                                 PCIDevice *dev)
-{
-    return -ENOSYS;
-}
-
-void kvm_irqchip_commit_routes(KVMState *s)
-{
-}
-
-int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
-{
-    return -ENOSYS;
-}
-
-int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
-                                       EventNotifier *rn, int virq)
-{
-    return -ENOSYS;
-}
-
-int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
-                                          int virq)
-{
-    return -ENOSYS;
-}
-
-bool kvm_has_free_slot(MachineState *ms)
-{
-    return false;
-}
-
-void kvm_init_cpu_signals(CPUState *cpu)
-{
-    abort();
-}
-
-bool kvm_arm_supports_user_irq(void)
-{
-    return false;
-}
-#endif

accel/stubs/tcg-stub.c

@@ -1,22 +0,0 @@
-/*
- * QEMU TCG accelerator stub
- *
- * Copyright Red Hat, Inc. 2013
- *
- * Author: 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 "qemu-common.h"
-#include "cpu.h"
-#include "tcg/tcg.h"
-#include "exec/cpu-common.h"
-#include "exec/exec-all.h"
-
-void tb_flush(CPUState *cpu)
-{
-}

accel/tcg/Makefile.objs

@@ -1,8 +0,0 @@
-obj-$(CONFIG_SOFTMMU) += tcg-all.o
-obj-$(CONFIG_SOFTMMU) += cputlb.o
-obj-y += tcg-runtime.o
-obj-y += cpu-exec.o cpu-exec-common.o translate-all.o
-obj-y += translator.o
-
-obj-$(CONFIG_USER_ONLY) += user-exec.o
-obj-$(call lnot,$(CONFIG_SOFTMMU)) += user-exec-stub.o

accel/tcg/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

accel/tcg/cpu-exec-common.c

@@ -1,84 +0,0 @@
-/*
- *  emulator main execution loop
- *
- *  Copyright (c) 2003-2005 Fabrice Bellard
- *
- * 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 "cpu.h"
-#include "sysemu/cpus.h"
-#include "exec/exec-all.h"
-#include "exec/memory-internal.h"
-
-bool tcg_allowed;
-
-/* exit the current TB, but without causing any exception to be raised */
-void cpu_loop_exit_noexc(CPUState *cpu)
-{
-    /* XXX: restore cpu registers saved in host registers */
-
-    cpu->exception_index = -1;
-    siglongjmp(cpu->jmp_env, 1);
-}
-
-#if defined(CONFIG_SOFTMMU)
-void cpu_reloading_memory_map(void)
-{
-    if (qemu_in_vcpu_thread() && current_cpu->running) {
-        /* The guest can in theory prolong the RCU critical section as long
-         * as it feels like. The major problem with this is that because it
-         * can do multiple reconfigurations of the memory map within the
-         * critical section, we could potentially accumulate an unbounded
-         * collection of memory data structures awaiting reclamation.
-         *
-         * Because the only thing we're currently protecting with RCU is the
-         * memory data structures, it's sufficient to break the critical section
-         * in this callback, which we know will get called every time the
-         * memory map is rearranged.
-         *
-         * (If we add anything else in the system that uses RCU to protect
-         * its data structures, we will need to implement some other mechanism
-         * to force TCG CPUs to exit the critical section, at which point this
-         * part of this callback might become unnecessary.)
-         *
-         * This pair matches cpu_exec's rcu_read_lock()/rcu_read_unlock(), which
-         * only protects cpu->as->dispatch. Since we know our caller is about
-         * to reload it, it's safe to split the critical section.
-         */
-        rcu_read_unlock();
-        rcu_read_lock();
-    }
-}
-#endif
-
-void cpu_loop_exit(CPUState *cpu)
-{
-    siglongjmp(cpu->jmp_env, 1);
-}
-
-void cpu_loop_exit_restore(CPUState *cpu, uintptr_t pc)
-{
-    if (pc) {
-        cpu_restore_state(cpu, pc);
-    }
-    siglongjmp(cpu->jmp_env, 1);
-}
-
-void cpu_loop_exit_atomic(CPUState *cpu, uintptr_t pc)
-{
-    cpu->exception_index = EXCP_ATOMIC;
-    cpu_loop_exit_restore(cpu, pc);
-}

accel/tcg/cpu-exec.c

@@ -1,722 +0,0 @@
-/*
- *  emulator main execution loop
- *
- *  Copyright (c) 2003-2005 Fabrice Bellard
- *
- * 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 "cpu.h"
-#include "trace.h"
-#include "disas/disas.h"
-#include "exec/exec-all.h"
-#include "tcg.h"
-#include "qemu/atomic.h"
-#include "sysemu/qtest.h"
-#include "qemu/timer.h"
-#include "exec/address-spaces.h"
-#include "qemu/rcu.h"
-#include "exec/tb-hash.h"
-#include "exec/log.h"
-#include "qemu/main-loop.h"
-#if defined(TARGET_I386) && !defined(CONFIG_USER_ONLY)
-#include "hw/i386/apic.h"
-#endif
-#include "sysemu/cpus.h"
-#include "sysemu/replay.h"
-
-/* -icount align implementation. */
-
-typedef struct SyncClocks {
-    int64_t diff_clk;
-    int64_t last_cpu_icount;
-    int64_t realtime_clock;
-} SyncClocks;
-
-#if !defined(CONFIG_USER_ONLY)
-/* Allow the guest to have a max 3ms advance.
- * The difference between the 2 clocks could therefore
- * oscillate around 0.
- */
-#define VM_CLOCK_ADVANCE 3000000
-#define THRESHOLD_REDUCE 1.5
-#define MAX_DELAY_PRINT_RATE 2000000000LL
-#define MAX_NB_PRINTS 100
-
-static void align_clocks(SyncClocks *sc, const CPUState *cpu)
-{
-    int64_t cpu_icount;
-
-    if (!icount_align_option) {
-        return;
-    }
-
-    cpu_icount = cpu->icount_extra + cpu->icount_decr.u16.low;
-    sc->diff_clk += cpu_icount_to_ns(sc->last_cpu_icount - cpu_icount);
-    sc->last_cpu_icount = cpu_icount;
-
-    if (sc->diff_clk > VM_CLOCK_ADVANCE) {
-#ifndef _WIN32
-        struct timespec sleep_delay, rem_delay;
-        sleep_delay.tv_sec = sc->diff_clk / 1000000000LL;
-        sleep_delay.tv_nsec = sc->diff_clk % 1000000000LL;
-        if (nanosleep(&sleep_delay, &rem_delay) < 0) {
-            sc->diff_clk = rem_delay.tv_sec * 1000000000LL + rem_delay.tv_nsec;
-        } else {
-            sc->diff_clk = 0;
-        }
-#else
-        Sleep(sc->diff_clk / SCALE_MS);
-        sc->diff_clk = 0;
-#endif
-    }
-}
-
-static void print_delay(const SyncClocks *sc)
-{
-    static float threshold_delay;
-    static int64_t last_realtime_clock;
-    static int nb_prints;
-
-    if (icount_align_option &&
-        sc->realtime_clock - last_realtime_clock >= MAX_DELAY_PRINT_RATE &&
-        nb_prints < MAX_NB_PRINTS) {
-        if ((-sc->diff_clk / (float)1000000000LL > threshold_delay) ||
-            (-sc->diff_clk / (float)1000000000LL <
-             (threshold_delay - THRESHOLD_REDUCE))) {
-            threshold_delay = (-sc->diff_clk / 1000000000LL) + 1;
-            printf("Warning: The guest is now late by %.1f to %.1f seconds\n",
-                   threshold_delay - 1,
-                   threshold_delay);
-            nb_prints++;
-            last_realtime_clock = sc->realtime_clock;
-        }
-    }
-}
-
-static void init_delay_params(SyncClocks *sc,
-                              const CPUState *cpu)
-{
-    if (!icount_align_option) {
-        return;
-    }
-    sc->realtime_clock = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL_RT);
-    sc->diff_clk = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - sc->realtime_clock;
-    sc->last_cpu_icount = cpu->icount_extra + cpu->icount_decr.u16.low;
-    if (sc->diff_clk < max_delay) {
-        max_delay = sc->diff_clk;
-    }
-    if (sc->diff_clk > max_advance) {
-        max_advance = sc->diff_clk;
-    }
-
-    /* Print every 2s max if the guest is late. We limit the number
-       of printed messages to NB_PRINT_MAX(currently 100) */
-    print_delay(sc);
-}
-#else
-static void align_clocks(SyncClocks *sc, const CPUState *cpu)
-{
-}
-
-static void init_delay_params(SyncClocks *sc, const CPUState *cpu)
-{
-}
-#endif /* CONFIG USER ONLY */
-
-/* Execute a TB, and fix up the CPU state afterwards if necessary */
-static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu, TranslationBlock *itb)
-{
-    CPUArchState *env = cpu->env_ptr;
-    uintptr_t ret;
-    TranslationBlock *last_tb;
-    int tb_exit;
-    uint8_t *tb_ptr = itb->tc_ptr;
-
-    qemu_log_mask_and_addr(CPU_LOG_EXEC, itb->pc,
-                           "Trace %p [%d: " TARGET_FMT_lx "] %s\n",
-                           itb->tc_ptr, cpu->cpu_index, itb->pc,
-                           lookup_symbol(itb->pc));
-
-#if defined(DEBUG_DISAS)
-    if (qemu_loglevel_mask(CPU_LOG_TB_CPU)
-        && qemu_log_in_addr_range(itb->pc)) {
-        qemu_log_lock();
-#if defined(TARGET_I386)
-        log_cpu_state(cpu, CPU_DUMP_CCOP);
-#else
-        log_cpu_state(cpu, 0);
-#endif
-        qemu_log_unlock();
-    }
-#endif /* DEBUG_DISAS */
-
-    cpu->can_do_io = !use_icount;
-    ret = tcg_qemu_tb_exec(env, tb_ptr);
-    cpu->can_do_io = 1;
-    last_tb = (TranslationBlock *)(ret & ~TB_EXIT_MASK);
-    tb_exit = ret & TB_EXIT_MASK;
-    trace_exec_tb_exit(last_tb, tb_exit);
-
-    if (tb_exit > TB_EXIT_IDX1) {
-        /* We didn't start executing this TB (eg because the instruction
-         * counter hit zero); we must restore the guest PC to the address
-         * of the start of the TB.
-         */
-        CPUClass *cc = CPU_GET_CLASS(cpu);
-        qemu_log_mask_and_addr(CPU_LOG_EXEC, last_tb->pc,
-                               "Stopped execution of TB chain before %p ["
-                               TARGET_FMT_lx "] %s\n",
-                               last_tb->tc_ptr, last_tb->pc,
-                               lookup_symbol(last_tb->pc));
-        if (cc->synchronize_from_tb) {
-            cc->synchronize_from_tb(cpu, last_tb);
-        } else {
-            assert(cc->set_pc);
-            cc->set_pc(cpu, last_tb->pc);
-        }
-    }
-    return ret;
-}
-
-#ifndef CONFIG_USER_ONLY
-/* Execute the code without caching the generated code. An interpreter
-   could be used if available. */
-static void cpu_exec_nocache(CPUState *cpu, int max_cycles,
-                             TranslationBlock *orig_tb, bool ignore_icount)
-{
-    TranslationBlock *tb;
-
-    /* Should never happen.
-       We only end up here when an existing TB is too long.  */
-    if (max_cycles > CF_COUNT_MASK)
-        max_cycles = CF_COUNT_MASK;
-
-    tb_lock();
-    tb = tb_gen_code(cpu, orig_tb->pc, orig_tb->cs_base, orig_tb->flags,
-                     max_cycles | CF_NOCACHE
-                         | (ignore_icount ? CF_IGNORE_ICOUNT : 0));
-    tb->orig_tb = orig_tb;
-    tb_unlock();
-
-    /* execute the generated code */
-    trace_exec_tb_nocache(tb, tb->pc);
-    cpu_tb_exec(cpu, tb);
-
-    tb_lock();
-    tb_phys_invalidate(tb, -1);
-    tb_free(tb);
-    tb_unlock();
-}
-#endif
-
-static void cpu_exec_step(CPUState *cpu)
-{
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-    CPUArchState *env = (CPUArchState *)cpu->env_ptr;
-    TranslationBlock *tb;
-    target_ulong cs_base, pc;
-    uint32_t flags;
-
-    cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags);
-    if (sigsetjmp(cpu->jmp_env, 0) == 0) {
-        mmap_lock();
-        tb_lock();
-        tb = tb_gen_code(cpu, pc, cs_base, flags,
-                         1 | CF_NOCACHE | CF_IGNORE_ICOUNT);
-        tb->orig_tb = NULL;
-        tb_unlock();
-        mmap_unlock();
-
-        cc->cpu_exec_enter(cpu);
-        /* execute the generated code */
-        trace_exec_tb_nocache(tb, pc);
-        cpu_tb_exec(cpu, tb);
-        cc->cpu_exec_exit(cpu);
-
-        tb_lock();
-        tb_phys_invalidate(tb, -1);
-        tb_free(tb);
-        tb_unlock();
-    } else {
-        /* We may have exited due to another problem here, so we need
-         * to reset any tb_locks we may have taken but didn't release.
-         * The mmap_lock is dropped by tb_gen_code if it runs out of
-         * memory.
-         */
-#ifndef CONFIG_SOFTMMU
-        tcg_debug_assert(!have_mmap_lock());
-#endif
-        tb_lock_reset();
-    }
-}
-
-void cpu_exec_step_atomic(CPUState *cpu)
-{
-    start_exclusive();
-
-    /* Since we got here, we know that parallel_cpus must be true.  */
-    parallel_cpus = false;
-    cpu_exec_step(cpu);
-    parallel_cpus = true;
-
-    end_exclusive();
-}
-
-struct tb_desc {
-    target_ulong pc;
-    target_ulong cs_base;
-    CPUArchState *env;
-    tb_page_addr_t phys_page1;
-    uint32_t flags;
-    uint32_t trace_vcpu_dstate;
-};
-
-static bool tb_cmp(const void *p, const void *d)
-{
-    const TranslationBlock *tb = p;
-    const struct tb_desc *desc = d;
-
-    if (tb->pc == desc->pc &&
-        tb->page_addr[0] == desc->phys_page1 &&
-        tb->cs_base == desc->cs_base &&
-        tb->flags == desc->flags &&
-        tb->trace_vcpu_dstate == desc->trace_vcpu_dstate &&
-        !atomic_read(&tb->invalid)) {
-        /* check next page if needed */
-        if (tb->page_addr[1] == -1) {
-            return true;
-        } else {
-            tb_page_addr_t phys_page2;
-            target_ulong virt_page2;
-
-            virt_page2 = (desc->pc & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
-            phys_page2 = get_page_addr_code(desc->env, virt_page2);
-            if (tb->page_addr[1] == phys_page2) {
-                return true;
-            }
-        }
-    }
-    return false;
-}
-
-TranslationBlock *tb_htable_lookup(CPUState *cpu, target_ulong pc,
-                                   target_ulong cs_base, uint32_t flags)
-{
-    tb_page_addr_t phys_pc;
-    struct tb_desc desc;
-    uint32_t h;
-
-    desc.env = (CPUArchState *)cpu->env_ptr;
-    desc.cs_base = cs_base;
-    desc.flags = flags;
-    desc.trace_vcpu_dstate = *cpu->trace_dstate;
-    desc.pc = pc;
-    phys_pc = get_page_addr_code(desc.env, pc);
-    desc.phys_page1 = phys_pc & TARGET_PAGE_MASK;
-    h = tb_hash_func(phys_pc, pc, flags, *cpu->trace_dstate);
-    return qht_lookup(&tcg_ctx.tb_ctx.htable, tb_cmp, &desc, h);
-}
-
-void tb_set_jmp_target(TranslationBlock *tb, int n, uintptr_t addr)
-{
-    if (TCG_TARGET_HAS_direct_jump) {
-        uintptr_t offset = tb->jmp_target_arg[n];
-        uintptr_t tc_ptr = (uintptr_t)tb->tc_ptr;
-        tb_target_set_jmp_target(tc_ptr, tc_ptr + offset, addr);
-    } else {
-        tb->jmp_target_arg[n] = addr;
-    }
-}
-
-/* Called with tb_lock held.  */
-static inline void tb_add_jump(TranslationBlock *tb, int n,
-                               TranslationBlock *tb_next)
-{
-    assert(n < ARRAY_SIZE(tb->jmp_list_next));
-    if (tb->jmp_list_next[n]) {
-        /* Another thread has already done this while we were
-         * outside of the lock; nothing to do in this case */
-        return;
-    }
-    qemu_log_mask_and_addr(CPU_LOG_EXEC, tb->pc,
-                           "Linking TBs %p [" TARGET_FMT_lx
-                           "] index %d -> %p [" TARGET_FMT_lx "]\n",
-                           tb->tc_ptr, tb->pc, n,
-                           tb_next->tc_ptr, tb_next->pc);
-
-    /* patch the native jump address */
-    tb_set_jmp_target(tb, n, (uintptr_t)tb_next->tc_ptr);
-
-    /* add in TB jmp circular list */
-    tb->jmp_list_next[n] = tb_next->jmp_list_first;
-    tb_next->jmp_list_first = (uintptr_t)tb | n;
-}
-
-static inline TranslationBlock *tb_find(CPUState *cpu,
-                                        TranslationBlock *last_tb,
-                                        int tb_exit)
-{
-    CPUArchState *env = (CPUArchState *)cpu->env_ptr;
-    TranslationBlock *tb;
-    target_ulong cs_base, pc;
-    uint32_t flags;
-    bool have_tb_lock = false;
-
-    /* we record a subset of the CPU state. It will
-       always be the same before a given translated block
-       is executed. */
-    cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags);
-    tb = atomic_rcu_read(&cpu->tb_jmp_cache[tb_jmp_cache_hash_func(pc)]);
-    if (unlikely(!tb || tb->pc != pc || tb->cs_base != cs_base ||
-                 tb->flags != flags ||
-                 tb->trace_vcpu_dstate != *cpu->trace_dstate)) {
-        tb = tb_htable_lookup(cpu, pc, cs_base, flags);
-        if (!tb) {
-
-            /* mmap_lock is needed by tb_gen_code, and mmap_lock must be
-             * taken outside tb_lock. As system emulation is currently
-             * single threaded the locks are NOPs.
-             */
-            mmap_lock();
-            tb_lock();
-            have_tb_lock = true;
-
-            /* There's a chance that our desired tb has been translated while
-             * taking the locks so we check again inside the lock.
-             */
-            tb = tb_htable_lookup(cpu, pc, cs_base, flags);
-            if (!tb) {
-                /* if no translated code available, then translate it now */
-                tb = tb_gen_code(cpu, pc, cs_base, flags, 0);
-            }
-
-            mmap_unlock();
-        }
-
-        /* We add the TB in the virtual pc hash table for the fast lookup */
-        atomic_set(&cpu->tb_jmp_cache[tb_jmp_cache_hash_func(pc)], tb);
-    }
-#ifndef CONFIG_USER_ONLY
-    /* We don't take care of direct jumps when address mapping changes in
-     * system emulation. So it's not safe to make a direct jump to a TB
-     * spanning two pages because the mapping for the second page can change.
-     */
-    if (tb->page_addr[1] != -1) {
-        last_tb = NULL;
-    }
-#endif
-    /* See if we can patch the calling TB. */
-    if (last_tb && !qemu_loglevel_mask(CPU_LOG_TB_NOCHAIN)) {
-        if (!have_tb_lock) {
-            tb_lock();
-            have_tb_lock = true;
-        }
-        if (!tb->invalid) {
-            tb_add_jump(last_tb, tb_exit, tb);
-        }
-    }
-    if (have_tb_lock) {
-        tb_unlock();
-    }
-    return tb;
-}
-
-static inline bool cpu_handle_halt(CPUState *cpu)
-{
-    if (cpu->halted) {
-#if defined(TARGET_I386) && !defined(CONFIG_USER_ONLY)
-        if ((cpu->interrupt_request & CPU_INTERRUPT_POLL)
-            && replay_interrupt()) {
-            X86CPU *x86_cpu = X86_CPU(cpu);
-            qemu_mutex_lock_iothread();
-            apic_poll_irq(x86_cpu->apic_state);
-            cpu_reset_interrupt(cpu, CPU_INTERRUPT_POLL);
-            qemu_mutex_unlock_iothread();
-        }
-#endif
-        if (!cpu_has_work(cpu)) {
-            return true;
-        }
-
-        cpu->halted = 0;
-    }
-
-    return false;
-}
-
-static inline void cpu_handle_debug_exception(CPUState *cpu)
-{
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-    CPUWatchpoint *wp;
-
-    if (!cpu->watchpoint_hit) {
-        QTAILQ_FOREACH(wp, &cpu->watchpoints, entry) {
-            wp->flags &= ~BP_WATCHPOINT_HIT;
-        }
-    }
-
-    cc->debug_excp_handler(cpu);
-}
-
-static inline bool cpu_handle_exception(CPUState *cpu, int *ret)
-{
-    if (cpu->exception_index >= 0) {
-        if (cpu->exception_index >= EXCP_INTERRUPT) {
-            /* exit request from the cpu execution loop */
-            *ret = cpu->exception_index;
-            if (*ret == EXCP_DEBUG) {
-                cpu_handle_debug_exception(cpu);
-            }
-            cpu->exception_index = -1;
-            return true;
-        } else {
-#if defined(CONFIG_USER_ONLY)
-            /* if user mode only, we simulate a fake exception
-               which will be handled outside the cpu execution
-               loop */
-#if defined(TARGET_I386)
-            CPUClass *cc = CPU_GET_CLASS(cpu);
-            cc->do_interrupt(cpu);
-#endif
-            *ret = cpu->exception_index;
-            cpu->exception_index = -1;
-            return true;
-#else
-            if (replay_exception()) {
-                CPUClass *cc = CPU_GET_CLASS(cpu);
-                qemu_mutex_lock_iothread();
-                cc->do_interrupt(cpu);
-                qemu_mutex_unlock_iothread();
-                cpu->exception_index = -1;
-            } else if (!replay_has_interrupt()) {
-                /* give a chance to iothread in replay mode */
-                *ret = EXCP_INTERRUPT;
-                return true;
-            }
-#endif
-        }
-#ifndef CONFIG_USER_ONLY
-    } else if (replay_has_exception()
-               && cpu->icount_decr.u16.low + cpu->icount_extra == 0) {
-        /* try to cause an exception pending in the log */
-        cpu_exec_nocache(cpu, 1, tb_find(cpu, NULL, 0), true);
-        *ret = -1;
-        return true;
-#endif
-    }
-
-    return false;
-}
-
-static inline bool cpu_handle_interrupt(CPUState *cpu,
-                                        TranslationBlock **last_tb)
-{
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-
-    if (unlikely(atomic_read(&cpu->interrupt_request))) {
-        int interrupt_request;
-        qemu_mutex_lock_iothread();
-        interrupt_request = cpu->interrupt_request;
-        if (unlikely(cpu->singlestep_enabled & SSTEP_NOIRQ)) {
-            /* Mask out external interrupts for this step. */
-            interrupt_request &= ~CPU_INTERRUPT_SSTEP_MASK;
-        }
-        if (interrupt_request & CPU_INTERRUPT_DEBUG) {
-            cpu->interrupt_request &= ~CPU_INTERRUPT_DEBUG;
-            cpu->exception_index = EXCP_DEBUG;
-            qemu_mutex_unlock_iothread();
-            return true;
-        }
-        if (replay_mode == REPLAY_MODE_PLAY && !replay_has_interrupt()) {
-            /* Do nothing */
-        } else if (interrupt_request & CPU_INTERRUPT_HALT) {
-            replay_interrupt();
-            cpu->interrupt_request &= ~CPU_INTERRUPT_HALT;
-            cpu->halted = 1;
-            cpu->exception_index = EXCP_HLT;
-            qemu_mutex_unlock_iothread();
-            return true;
-        }
-#if defined(TARGET_I386)
-        else if (interrupt_request & CPU_INTERRUPT_INIT) {
-            X86CPU *x86_cpu = X86_CPU(cpu);
-            CPUArchState *env = &x86_cpu->env;
-            replay_interrupt();
-            cpu_svm_check_intercept_param(env, SVM_EXIT_INIT, 0, 0);
-            do_cpu_init(x86_cpu);
-            cpu->exception_index = EXCP_HALTED;
-            qemu_mutex_unlock_iothread();
-            return true;
-        }
-#else
-        else if (interrupt_request & CPU_INTERRUPT_RESET) {
-            replay_interrupt();
-            cpu_reset(cpu);
-            qemu_mutex_unlock_iothread();
-            return true;
-        }
-#endif
-        /* The target hook has 3 exit conditions:
-           False when the interrupt isn't processed,
-           True when it is, and we should restart on a new TB,
-           and via longjmp via cpu_loop_exit.  */
-        else {
-            if (cc->cpu_exec_interrupt(cpu, interrupt_request)) {
-                replay_interrupt();
-                *last_tb = NULL;
-            }
-            /* The target hook may have updated the 'cpu->interrupt_request';
-             * reload the 'interrupt_request' value */
-            interrupt_request = cpu->interrupt_request;
-        }
-        if (interrupt_request & CPU_INTERRUPT_EXITTB) {
-            cpu->interrupt_request &= ~CPU_INTERRUPT_EXITTB;
-            /* ensure that no TB jump will be modified as
-               the program flow was changed */
-            *last_tb = NULL;
-        }
-
-        /* If we exit via cpu_loop_exit/longjmp it is reset in cpu_exec */
-        qemu_mutex_unlock_iothread();
-    }
-
-    /* Finally, check if we need to exit to the main loop.  */
-    if (unlikely(atomic_read(&cpu->exit_request)
-        || (use_icount && cpu->icount_decr.u16.low + cpu->icount_extra == 0))) {
-        atomic_set(&cpu->exit_request, 0);
-        cpu->exception_index = EXCP_INTERRUPT;
-        return true;
-    }
-
-    return false;
-}
-
-static inline void cpu_loop_exec_tb(CPUState *cpu, TranslationBlock *tb,
-                                    TranslationBlock **last_tb, int *tb_exit)
-{
-    uintptr_t ret;
-    int32_t insns_left;
-
-    trace_exec_tb(tb, tb->pc);
-    ret = cpu_tb_exec(cpu, tb);
-    tb = (TranslationBlock *)(ret & ~TB_EXIT_MASK);
-    *tb_exit = ret & TB_EXIT_MASK;
-    if (*tb_exit != TB_EXIT_REQUESTED) {
-        *last_tb = tb;
-        return;
-    }
-
-    *last_tb = NULL;
-    insns_left = atomic_read(&cpu->icount_decr.u32);
-    atomic_set(&cpu->icount_decr.u16.high, 0);
-    if (insns_left < 0) {
-        /* Something asked us to stop executing chained TBs; just
-         * continue round the main loop. Whatever requested the exit
-         * will also have set something else (eg exit_request or
-         * interrupt_request) which we will handle next time around
-         * the loop.  But we need to ensure the zeroing of icount_decr
-         * comes before the next read of cpu->exit_request
-         * or cpu->interrupt_request.
-         */
-        smp_mb();
-        return;
-    }
-
-    /* Instruction counter expired.  */
-    assert(use_icount);
-#ifndef CONFIG_USER_ONLY
-    /* Ensure global icount has gone forward */
-    cpu_update_icount(cpu);
-    /* Refill decrementer and continue execution.  */
-    insns_left = MIN(0xffff, cpu->icount_budget);
-    cpu->icount_decr.u16.low = insns_left;
-    cpu->icount_extra = cpu->icount_budget - insns_left;
-    if (!cpu->icount_extra) {
-        /* Execute any remaining instructions, then let the main loop
-         * handle the next event.
-         */
-        if (insns_left > 0) {
-            cpu_exec_nocache(cpu, insns_left, tb, false);
-        }
-    }
-#endif
-}
-
-/* main execution loop */
-
-int cpu_exec(CPUState *cpu)
-{
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-    int ret;
-    SyncClocks sc = { 0 };
-
-    /* replay_interrupt may need current_cpu */
-    current_cpu = cpu;
-
-    if (cpu_handle_halt(cpu)) {
-        return EXCP_HALTED;
-    }
-
-    rcu_read_lock();
-
-    cc->cpu_exec_enter(cpu);
-
-    /* Calculate difference between guest clock and host clock.
-     * This delay includes the delay of the last cycle, so
-     * what we have to do is sleep until it is 0. As for the
-     * advance/delay we gain here, we try to fix it next time.
-     */
-    init_delay_params(&sc, cpu);
-
-    /* prepare setjmp context for exception handling */
-    if (sigsetjmp(cpu->jmp_env, 0) != 0) {
-#if defined(__clang__) || !QEMU_GNUC_PREREQ(4, 6)
-        /* Some compilers wrongly smash all local variables after
-         * siglongjmp. There were bug reports for gcc 4.5.0 and clang.
-         * Reload essential local variables here for those compilers.
-         * Newer versions of gcc would complain about this code (-Wclobbered). */
-        cpu = current_cpu;
-        cc = CPU_GET_CLASS(cpu);
-#else /* buggy compiler */
-        /* Assert that the compiler does not smash local variables. */
-        g_assert(cpu == current_cpu);
-        g_assert(cc == CPU_GET_CLASS(cpu));
-#endif /* buggy compiler */
-        cpu->can_do_io = 1;
-        tb_lock_reset();
-        if (qemu_mutex_iothread_locked()) {
-            qemu_mutex_unlock_iothread();
-        }
-    }
-
-    /* if an exception is pending, we execute it here */
-    while (!cpu_handle_exception(cpu, &ret)) {
-        TranslationBlock *last_tb = NULL;
-        int tb_exit = 0;
-
-        while (!cpu_handle_interrupt(cpu, &last_tb)) {
-            TranslationBlock *tb = tb_find(cpu, last_tb, tb_exit);
-            cpu_loop_exec_tb(cpu, tb, &last_tb, &tb_exit);
-            /* Try to align the host and virtual clocks
-               if the guest is in advance */
-            align_clocks(&sc, cpu);
-        }
-    }
-
-    cc->cpu_exec_exit(cpu);
-    rcu_read_unlock();
-
-    return ret;
-}

accel/tcg/softmmu_template.h

@@ -1,433 +0,0 @@
-/*
- *  Software MMU support
- *
- * Generate helpers used by TCG for qemu_ld/st ops and code load
- * functions.
- *
- * Included from target op helpers and exec.c.
- *
- *  Copyright (c) 2003 Fabrice Bellard
- *
- * 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 == 8
-#define SUFFIX q
-#define LSUFFIX q
-#define SDATA_TYPE  int64_t
-#define DATA_TYPE  uint64_t
-#elif DATA_SIZE == 4
-#define SUFFIX l
-#define LSUFFIX l
-#define SDATA_TYPE  int32_t
-#define DATA_TYPE  uint32_t
-#elif DATA_SIZE == 2
-#define SUFFIX w
-#define LSUFFIX uw
-#define SDATA_TYPE  int16_t
-#define DATA_TYPE  uint16_t
-#elif DATA_SIZE == 1
-#define SUFFIX b
-#define LSUFFIX ub
-#define SDATA_TYPE  int8_t
-#define DATA_TYPE  uint8_t
-#else
-#error unsupported data size
-#endif
-
-
-/* For the benefit of TCG generated code, we want to avoid the complication
-   of ABI-specific return type promotion and always return a value extended
-   to the register size of the host.  This is tcg_target_long, except in the
-   case of a 32-bit host and 64-bit data, and for that we always have
-   uint64_t.  Don't bother with this widened value for SOFTMMU_CODE_ACCESS.  */
-#if defined(SOFTMMU_CODE_ACCESS) || DATA_SIZE == 8
-# define WORD_TYPE  DATA_TYPE
-# define USUFFIX    SUFFIX
-#else
-# define WORD_TYPE  tcg_target_ulong
-# define USUFFIX    glue(u, SUFFIX)
-# define SSUFFIX    glue(s, SUFFIX)
-#endif
-
-#ifdef SOFTMMU_CODE_ACCESS
-#define READ_ACCESS_TYPE MMU_INST_FETCH
-#define ADDR_READ addr_code
-#else
-#define READ_ACCESS_TYPE MMU_DATA_LOAD
-#define ADDR_READ addr_read
-#endif
-
-#if DATA_SIZE == 8
-# define BSWAP(X)  bswap64(X)
-#elif DATA_SIZE == 4
-# define BSWAP(X)  bswap32(X)
-#elif DATA_SIZE == 2
-# define BSWAP(X)  bswap16(X)
-#else
-# define BSWAP(X)  (X)
-#endif
-
-#if DATA_SIZE == 1
-# define helper_le_ld_name  glue(glue(helper_ret_ld, USUFFIX), MMUSUFFIX)
-# define helper_be_ld_name  helper_le_ld_name
-# define helper_le_lds_name glue(glue(helper_ret_ld, SSUFFIX), MMUSUFFIX)
-# define helper_be_lds_name helper_le_lds_name
-# define helper_le_st_name  glue(glue(helper_ret_st, SUFFIX), MMUSUFFIX)
-# define helper_be_st_name  helper_le_st_name
-#else
-# define helper_le_ld_name  glue(glue(helper_le_ld, USUFFIX), MMUSUFFIX)
-# define helper_be_ld_name  glue(glue(helper_be_ld, USUFFIX), MMUSUFFIX)
-# define helper_le_lds_name glue(glue(helper_le_ld, SSUFFIX), MMUSUFFIX)
-# define helper_be_lds_name glue(glue(helper_be_ld, SSUFFIX), MMUSUFFIX)
-# define helper_le_st_name  glue(glue(helper_le_st, SUFFIX), MMUSUFFIX)
-# define helper_be_st_name  glue(glue(helper_be_st, SUFFIX), MMUSUFFIX)
-#endif
-
-#ifndef SOFTMMU_CODE_ACCESS
-static inline DATA_TYPE glue(io_read, SUFFIX)(CPUArchState *env,
-                                              size_t mmu_idx, size_t index,
-                                              target_ulong addr,
-                                              uintptr_t retaddr)
-{
-    CPUIOTLBEntry *iotlbentry = &env->iotlb[mmu_idx][index];
-    return io_readx(env, iotlbentry, mmu_idx, addr, retaddr, DATA_SIZE);
-}
-#endif
-
-WORD_TYPE helper_le_ld_name(CPUArchState *env, target_ulong addr,
-                            TCGMemOpIdx oi, uintptr_t retaddr)
-{
-    unsigned mmu_idx = get_mmuidx(oi);
-    int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-    target_ulong tlb_addr = env->tlb_table[mmu_idx][index].ADDR_READ;
-    unsigned a_bits = get_alignment_bits(get_memop(oi));
-    uintptr_t haddr;
-    DATA_TYPE res;
-
-    if (addr & ((1 << a_bits) - 1)) {
-        cpu_unaligned_access(ENV_GET_CPU(env), addr, READ_ACCESS_TYPE,
-                             mmu_idx, retaddr);
-    }
-
-    /* If the TLB entry is for a different page, reload and try again.  */
-    if ((addr & TARGET_PAGE_MASK)
-         != (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
-        if (!VICTIM_TLB_HIT(ADDR_READ, addr)) {
-            tlb_fill(ENV_GET_CPU(env), addr, READ_ACCESS_TYPE,
-                     mmu_idx, retaddr);
-        }
-        tlb_addr = env->tlb_table[mmu_idx][index].ADDR_READ;
-    }
-
-    /* Handle an IO access.  */
-    if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) {
-        if ((addr & (DATA_SIZE - 1)) != 0) {
-            goto do_unaligned_access;
-        }
-
-        /* ??? Note that the io helpers always read data in the target
-           byte ordering.  We should push the LE/BE request down into io.  */
-        res = glue(io_read, SUFFIX)(env, mmu_idx, index, addr, retaddr);
-        res = TGT_LE(res);
-        return res;
-    }
-
-    /* Handle slow unaligned access (it spans two pages or IO).  */
-    if (DATA_SIZE > 1
-        && unlikely((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1
-                    >= TARGET_PAGE_SIZE)) {
-        target_ulong addr1, addr2;
-        DATA_TYPE res1, res2;
-        unsigned shift;
-    do_unaligned_access:
-        addr1 = addr & ~(DATA_SIZE - 1);
-        addr2 = addr1 + DATA_SIZE;
-        res1 = helper_le_ld_name(env, addr1, oi, retaddr);
-        res2 = helper_le_ld_name(env, addr2, oi, retaddr);
-        shift = (addr & (DATA_SIZE - 1)) * 8;
-
-        /* Little-endian combine.  */
-        res = (res1 >> shift) | (res2 << ((DATA_SIZE * 8) - shift));
-        return res;
-    }
-
-    haddr = addr + env->tlb_table[mmu_idx][index].addend;
-#if DATA_SIZE == 1
-    res = glue(glue(ld, LSUFFIX), _p)((uint8_t *)haddr);
-#else
-    res = glue(glue(ld, LSUFFIX), _le_p)((uint8_t *)haddr);
-#endif
-    return res;
-}
-
-#if DATA_SIZE > 1
-WORD_TYPE helper_be_ld_name(CPUArchState *env, target_ulong addr,
-                            TCGMemOpIdx oi, uintptr_t retaddr)
-{
-    unsigned mmu_idx = get_mmuidx(oi);
-    int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-    target_ulong tlb_addr = env->tlb_table[mmu_idx][index].ADDR_READ;
-    unsigned a_bits = get_alignment_bits(get_memop(oi));
-    uintptr_t haddr;
-    DATA_TYPE res;
-
-    if (addr & ((1 << a_bits) - 1)) {
-        cpu_unaligned_access(ENV_GET_CPU(env), addr, READ_ACCESS_TYPE,
-                             mmu_idx, retaddr);
-    }
-
-    /* If the TLB entry is for a different page, reload and try again.  */
-    if ((addr & TARGET_PAGE_MASK)
-         != (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
-        if (!VICTIM_TLB_HIT(ADDR_READ, addr)) {
-            tlb_fill(ENV_GET_CPU(env), addr, READ_ACCESS_TYPE,
-                     mmu_idx, retaddr);
-        }
-        tlb_addr = env->tlb_table[mmu_idx][index].ADDR_READ;
-    }
-
-    /* Handle an IO access.  */
-    if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) {
-        if ((addr & (DATA_SIZE - 1)) != 0) {
-            goto do_unaligned_access;
-        }
-
-        /* ??? Note that the io helpers always read data in the target
-           byte ordering.  We should push the LE/BE request down into io.  */
-        res = glue(io_read, SUFFIX)(env, mmu_idx, index, addr, retaddr);
-        res = TGT_BE(res);
-        return res;
-    }
-
-    /* Handle slow unaligned access (it spans two pages or IO).  */
-    if (DATA_SIZE > 1
-        && unlikely((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1
-                    >= TARGET_PAGE_SIZE)) {
-        target_ulong addr1, addr2;
-        DATA_TYPE res1, res2;
-        unsigned shift;
-    do_unaligned_access:
-        addr1 = addr & ~(DATA_SIZE - 1);
-        addr2 = addr1 + DATA_SIZE;
-        res1 = helper_be_ld_name(env, addr1, oi, retaddr);
-        res2 = helper_be_ld_name(env, addr2, oi, retaddr);
-        shift = (addr & (DATA_SIZE - 1)) * 8;
-
-        /* Big-endian combine.  */
-        res = (res1 << shift) | (res2 >> ((DATA_SIZE * 8) - shift));
-        return res;
-    }
-
-    haddr = addr + env->tlb_table[mmu_idx][index].addend;
-    res = glue(glue(ld, LSUFFIX), _be_p)((uint8_t *)haddr);
-    return res;
-}
-#endif /* DATA_SIZE > 1 */
-
-#ifndef SOFTMMU_CODE_ACCESS
-
-/* Provide signed versions of the load routines as well.  We can of course
-   avoid this for 64-bit data, or for 32-bit data on 32-bit host.  */
-#if DATA_SIZE * 8 < TCG_TARGET_REG_BITS
-WORD_TYPE helper_le_lds_name(CPUArchState *env, target_ulong addr,
-                             TCGMemOpIdx oi, uintptr_t retaddr)
-{
-    return (SDATA_TYPE)helper_le_ld_name(env, addr, oi, retaddr);
-}
-
-# if DATA_SIZE > 1
-WORD_TYPE helper_be_lds_name(CPUArchState *env, target_ulong addr,
-                             TCGMemOpIdx oi, uintptr_t retaddr)
-{
-    return (SDATA_TYPE)helper_be_ld_name(env, addr, oi, retaddr);
-}
-# endif
-#endif
-
-static inline void glue(io_write, SUFFIX)(CPUArchState *env,
-                                          size_t mmu_idx, size_t index,
-                                          DATA_TYPE val,
-                                          target_ulong addr,
-                                          uintptr_t retaddr)
-{
-    CPUIOTLBEntry *iotlbentry = &env->iotlb[mmu_idx][index];
-    return io_writex(env, iotlbentry, mmu_idx, val, addr, retaddr, DATA_SIZE);
-}
-
-void helper_le_st_name(CPUArchState *env, target_ulong addr, DATA_TYPE val,
-                       TCGMemOpIdx oi, uintptr_t retaddr)
-{
-    unsigned mmu_idx = get_mmuidx(oi);
-    int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-    target_ulong tlb_addr = env->tlb_table[mmu_idx][index].addr_write;
-    unsigned a_bits = get_alignment_bits(get_memop(oi));
-    uintptr_t haddr;
-
-    if (addr & ((1 << a_bits) - 1)) {
-        cpu_unaligned_access(ENV_GET_CPU(env), addr, MMU_DATA_STORE,
-                             mmu_idx, retaddr);
-    }
-
-    /* If the TLB entry is for a different page, reload and try again.  */
-    if ((addr & TARGET_PAGE_MASK)
-        != (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
-        if (!VICTIM_TLB_HIT(addr_write, addr)) {
-            tlb_fill(ENV_GET_CPU(env), addr, MMU_DATA_STORE, mmu_idx, retaddr);
-        }
-        tlb_addr = env->tlb_table[mmu_idx][index].addr_write;
-    }
-
-    /* Handle an IO access.  */
-    if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) {
-        if ((addr & (DATA_SIZE - 1)) != 0) {
-            goto do_unaligned_access;
-        }
-
-        /* ??? Note that the io helpers always read data in the target
-           byte ordering.  We should push the LE/BE request down into io.  */
-        val = TGT_LE(val);
-        glue(io_write, SUFFIX)(env, mmu_idx, index, val, addr, retaddr);
-        return;
-    }
-
-    /* Handle slow unaligned access (it spans two pages or IO).  */
-    if (DATA_SIZE > 1
-        && unlikely((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1
-                     >= TARGET_PAGE_SIZE)) {
-        int i, index2;
-        target_ulong page2, tlb_addr2;
-    do_unaligned_access:
-        /* Ensure the second page is in the TLB.  Note that the first page
-           is already guaranteed to be filled, and that the second page
-           cannot evict the first.  */
-        page2 = (addr + DATA_SIZE) & TARGET_PAGE_MASK;
-        index2 = (page2 >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-        tlb_addr2 = env->tlb_table[mmu_idx][index2].addr_write;
-        if (page2 != (tlb_addr2 & (TARGET_PAGE_MASK | TLB_INVALID_MASK))
-            && !VICTIM_TLB_HIT(addr_write, page2)) {
-            tlb_fill(ENV_GET_CPU(env), page2, MMU_DATA_STORE,
-                     mmu_idx, retaddr);
-        }
-
-        /* XXX: not efficient, but simple.  */
-        /* This loop must go in the forward direction to avoid issues
-           with self-modifying code in Windows 64-bit.  */
-        for (i = 0; i < DATA_SIZE; ++i) {
-            /* Little-endian extract.  */
-            uint8_t val8 = val >> (i * 8);
-            glue(helper_ret_stb, MMUSUFFIX)(env, addr + i, val8,
-                                            oi, retaddr);
-        }
-        return;
-    }
-
-    haddr = addr + env->tlb_table[mmu_idx][index].addend;
-#if DATA_SIZE == 1
-    glue(glue(st, SUFFIX), _p)((uint8_t *)haddr, val);
-#else
-    glue(glue(st, SUFFIX), _le_p)((uint8_t *)haddr, val);
-#endif
-}
-
-#if DATA_SIZE > 1
-void helper_be_st_name(CPUArchState *env, target_ulong addr, DATA_TYPE val,
-                       TCGMemOpIdx oi, uintptr_t retaddr)
-{
-    unsigned mmu_idx = get_mmuidx(oi);
-    int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-    target_ulong tlb_addr = env->tlb_table[mmu_idx][index].addr_write;
-    unsigned a_bits = get_alignment_bits(get_memop(oi));
-    uintptr_t haddr;
-
-    if (addr & ((1 << a_bits) - 1)) {
-        cpu_unaligned_access(ENV_GET_CPU(env), addr, MMU_DATA_STORE,
-                             mmu_idx, retaddr);
-    }
-
-    /* If the TLB entry is for a different page, reload and try again.  */
-    if ((addr & TARGET_PAGE_MASK)
-        != (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
-        if (!VICTIM_TLB_HIT(addr_write, addr)) {
-            tlb_fill(ENV_GET_CPU(env), addr, MMU_DATA_STORE, mmu_idx, retaddr);
-        }
-        tlb_addr = env->tlb_table[mmu_idx][index].addr_write;
-    }
-
-    /* Handle an IO access.  */
-    if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) {
-        if ((addr & (DATA_SIZE - 1)) != 0) {
-            goto do_unaligned_access;
-        }
-
-        /* ??? Note that the io helpers always read data in the target
-           byte ordering.  We should push the LE/BE request down into io.  */
-        val = TGT_BE(val);
-        glue(io_write, SUFFIX)(env, mmu_idx, index, val, addr, retaddr);
-        return;
-    }
-
-    /* Handle slow unaligned access (it spans two pages or IO).  */
-    if (DATA_SIZE > 1
-        && unlikely((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1
-                     >= TARGET_PAGE_SIZE)) {
-        int i, index2;
-        target_ulong page2, tlb_addr2;
-    do_unaligned_access:
-        /* Ensure the second page is in the TLB.  Note that the first page
-           is already guaranteed to be filled, and that the second page
-           cannot evict the first.  */
-        page2 = (addr + DATA_SIZE) & TARGET_PAGE_MASK;
-        index2 = (page2 >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-        tlb_addr2 = env->tlb_table[mmu_idx][index2].addr_write;
-        if (page2 != (tlb_addr2 & (TARGET_PAGE_MASK | TLB_INVALID_MASK))
-            && !VICTIM_TLB_HIT(addr_write, page2)) {
-            tlb_fill(ENV_GET_CPU(env), page2, MMU_DATA_STORE,
-                     mmu_idx, retaddr);
-        }
-
-        /* XXX: not efficient, but simple */
-        /* This loop must go in the forward direction to avoid issues
-           with self-modifying code.  */
-        for (i = 0; i < DATA_SIZE; ++i) {
-            /* Big-endian extract.  */
-            uint8_t val8 = val >> (((DATA_SIZE - 1) * 8) - (i * 8));
-            glue(helper_ret_stb, MMUSUFFIX)(env, addr + i, val8,
-                                            oi, retaddr);
-        }
-        return;
-    }
-
-    haddr = addr + env->tlb_table[mmu_idx][index].addend;
-    glue(glue(st, SUFFIX), _be_p)((uint8_t *)haddr, val);
-}
-#endif /* DATA_SIZE > 1 */
-#endif /* !defined(SOFTMMU_CODE_ACCESS) */
-
-#undef READ_ACCESS_TYPE
-#undef DATA_TYPE
-#undef SUFFIX
-#undef LSUFFIX
-#undef DATA_SIZE
-#undef ADDR_READ
-#undef WORD_TYPE
-#undef SDATA_TYPE
-#undef USUFFIX
-#undef SSUFFIX
-#undef BSWAP
-#undef helper_le_ld_name
-#undef helper_be_ld_name
-#undef helper_le_lds_name
-#undef helper_be_lds_name
-#undef helper_le_st_name
-#undef helper_be_st_name

accel/tcg/tcg-all.c

@@ -1,92 +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 "sysemu/sysemu.h"
-#include "qom/object.h"
-#include "qemu-common.h"
-#include "qom/cpu.h"
-#include "sysemu/cpus.h"
-#include "qemu/main-loop.h"
-
-unsigned long tcg_tb_size;
-
-#ifndef CONFIG_USER_ONLY
-/* mask must never be zero, except for A20 change call */
-static void tcg_handle_interrupt(CPUState *cpu, int mask)
-{
-    int old_mask;
-    g_assert(qemu_mutex_iothread_locked());
-
-    old_mask = cpu->interrupt_request;
-    cpu->interrupt_request |= mask;
-
-    /*
-     * If called from iothread context, wake the target cpu in
-     * case its halted.
-     */
-    if (!qemu_cpu_is_self(cpu)) {
-        qemu_cpu_kick(cpu);
-    } else {
-        cpu->icount_decr.u16.high = -1;
-        if (use_icount &&
-            !cpu->can_do_io
-            && (mask & ~old_mask) != 0) {
-            cpu_abort(cpu, "Raised interrupt while not in I/O function");
-        }
-    }
-}
-#endif
-
-static int tcg_init(MachineState *ms)
-{
-    tcg_exec_init(tcg_tb_size * 1024 * 1024);
-    cpu_interrupt_handler = tcg_handle_interrupt;
-    return 0;
-}
-
-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(&tcg_accel_type);
-}
-
-type_init(register_accel_types);

accel/tcg/tcg-runtime.c

@@ -1,180 +0,0 @@
-/*
- * Tiny Code Generator for QEMU
- *
- * Copyright (c) 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/host-utils.h"
-#include "cpu.h"
-#include "exec/helper-proto.h"
-#include "exec/cpu_ldst.h"
-#include "exec/exec-all.h"
-#include "exec/tb-hash.h"
-#include "disas/disas.h"
-#include "exec/log.h"
-
-/* 32-bit helpers */
-
-int32_t HELPER(div_i32)(int32_t arg1, int32_t arg2)
-{
-    return arg1 / arg2;
-}
-
-int32_t HELPER(rem_i32)(int32_t arg1, int32_t arg2)
-{
-    return arg1 % arg2;
-}
-
-uint32_t HELPER(divu_i32)(uint32_t arg1, uint32_t arg2)
-{
-    return arg1 / arg2;
-}
-
-uint32_t HELPER(remu_i32)(uint32_t arg1, uint32_t arg2)
-{
-    return arg1 % arg2;
-}
-
-/* 64-bit helpers */
-
-uint64_t HELPER(shl_i64)(uint64_t arg1, uint64_t arg2)
-{
-    return arg1 << arg2;
-}
-
-uint64_t HELPER(shr_i64)(uint64_t arg1, uint64_t arg2)
-{
-    return arg1 >> arg2;
-}
-
-int64_t HELPER(sar_i64)(int64_t arg1, int64_t arg2)
-{
-    return arg1 >> arg2;
-}
-
-int64_t HELPER(div_i64)(int64_t arg1, int64_t arg2)
-{
-    return arg1 / arg2;
-}
-
-int64_t HELPER(rem_i64)(int64_t arg1, int64_t arg2)
-{
-    return arg1 % arg2;
-}
-
-uint64_t HELPER(divu_i64)(uint64_t arg1, uint64_t arg2)
-{
-    return arg1 / arg2;
-}
-
-uint64_t HELPER(remu_i64)(uint64_t arg1, uint64_t arg2)
-{
-    return arg1 % arg2;
-}
-
-uint64_t HELPER(muluh_i64)(uint64_t arg1, uint64_t arg2)
-{
-    uint64_t l, h;
-    mulu64(&l, &h, arg1, arg2);
-    return h;
-}
-
-int64_t HELPER(mulsh_i64)(int64_t arg1, int64_t arg2)
-{
-    uint64_t l, h;
-    muls64(&l, &h, arg1, arg2);
-    return h;
-}
-
-uint32_t HELPER(clz_i32)(uint32_t arg, uint32_t zero_val)
-{
-    return arg ? clz32(arg) : zero_val;
-}
-
-uint32_t HELPER(ctz_i32)(uint32_t arg, uint32_t zero_val)
-{
-    return arg ? ctz32(arg) : zero_val;
-}
-
-uint64_t HELPER(clz_i64)(uint64_t arg, uint64_t zero_val)
-{
-    return arg ? clz64(arg) : zero_val;
-}
-
-uint64_t HELPER(ctz_i64)(uint64_t arg, uint64_t zero_val)
-{
-    return arg ? ctz64(arg) : zero_val;
-}
-
-uint32_t HELPER(clrsb_i32)(uint32_t arg)
-{
-    return clrsb32(arg);
-}
-
-uint64_t HELPER(clrsb_i64)(uint64_t arg)
-{
-    return clrsb64(arg);
-}
-
-uint32_t HELPER(ctpop_i32)(uint32_t arg)
-{
-    return ctpop32(arg);
-}
-
-uint64_t HELPER(ctpop_i64)(uint64_t arg)
-{
-    return ctpop64(arg);
-}
-
-void *HELPER(lookup_tb_ptr)(CPUArchState *env, target_ulong addr)
-{
-    CPUState *cpu = ENV_GET_CPU(env);
-    TranslationBlock *tb;
-    target_ulong cs_base, pc;
-    uint32_t flags, addr_hash;
-
-    addr_hash = tb_jmp_cache_hash_func(addr);
-    tb = atomic_rcu_read(&cpu->tb_jmp_cache[addr_hash]);
-    cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags);
-
-    if (unlikely(!(tb
-                   && tb->pc == addr
-                   && tb->cs_base == cs_base
-                   && tb->flags == flags
-                   && tb->trace_vcpu_dstate == *cpu->trace_dstate))) {
-        tb = tb_htable_lookup(cpu, addr, cs_base, flags);
-        if (!tb) {
-            return tcg_ctx.code_gen_epilogue;
-        }
-        atomic_set(&cpu->tb_jmp_cache[addr_hash], tb);
-    }
-
-    qemu_log_mask_and_addr(CPU_LOG_EXEC, addr,
-                           "Chain %p [%d: " TARGET_FMT_lx "] %s\n",
-                           tb->tc_ptr, cpu->cpu_index, addr,
-                           lookup_symbol(addr));
-    return tb->tc_ptr;
-}
-
-void HELPER(exit_atomic)(CPUArchState *env)
-{
-    cpu_loop_exit_atomic(ENV_GET_CPU(env), GETPC());
-}

accel/tcg/tcg-runtime.h

@@ -1,136 +0,0 @@
-DEF_HELPER_FLAGS_2(div_i32, TCG_CALL_NO_RWG_SE, s32, s32, s32)
-DEF_HELPER_FLAGS_2(rem_i32, TCG_CALL_NO_RWG_SE, s32, s32, s32)
-DEF_HELPER_FLAGS_2(divu_i32, TCG_CALL_NO_RWG_SE, i32, i32, i32)
-DEF_HELPER_FLAGS_2(remu_i32, TCG_CALL_NO_RWG_SE, i32, i32, i32)
-
-DEF_HELPER_FLAGS_2(div_i64, TCG_CALL_NO_RWG_SE, s64, s64, s64)
-DEF_HELPER_FLAGS_2(rem_i64, TCG_CALL_NO_RWG_SE, s64, s64, s64)
-DEF_HELPER_FLAGS_2(divu_i64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
-DEF_HELPER_FLAGS_2(remu_i64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
-
-DEF_HELPER_FLAGS_2(shl_i64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
-DEF_HELPER_FLAGS_2(shr_i64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
-DEF_HELPER_FLAGS_2(sar_i64, TCG_CALL_NO_RWG_SE, s64, s64, s64)
-
-DEF_HELPER_FLAGS_2(mulsh_i64, TCG_CALL_NO_RWG_SE, s64, s64, s64)
-DEF_HELPER_FLAGS_2(muluh_i64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
-
-DEF_HELPER_FLAGS_2(clz_i32, TCG_CALL_NO_RWG_SE, i32, i32, i32)
-DEF_HELPER_FLAGS_2(ctz_i32, TCG_CALL_NO_RWG_SE, i32, i32, i32)
-DEF_HELPER_FLAGS_2(clz_i64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
-DEF_HELPER_FLAGS_2(ctz_i64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
-DEF_HELPER_FLAGS_1(clrsb_i32, TCG_CALL_NO_RWG_SE, i32, i32)
-DEF_HELPER_FLAGS_1(clrsb_i64, TCG_CALL_NO_RWG_SE, i64, i64)
-DEF_HELPER_FLAGS_1(ctpop_i32, TCG_CALL_NO_RWG_SE, i32, i32)
-DEF_HELPER_FLAGS_1(ctpop_i64, TCG_CALL_NO_RWG_SE, i64, i64)
-
-DEF_HELPER_FLAGS_2(lookup_tb_ptr, TCG_CALL_NO_WG_SE, ptr, env, tl)
-
-DEF_HELPER_FLAGS_1(exit_atomic, TCG_CALL_NO_WG, noreturn, env)
-
-#ifdef CONFIG_SOFTMMU
-
-DEF_HELPER_FLAGS_5(atomic_cmpxchgb, TCG_CALL_NO_WG,
-                   i32, env, tl, i32, i32, i32)
-DEF_HELPER_FLAGS_5(atomic_cmpxchgw_be, TCG_CALL_NO_WG,
-                   i32, env, tl, i32, i32, i32)
-DEF_HELPER_FLAGS_5(atomic_cmpxchgw_le, TCG_CALL_NO_WG,
-                   i32, env, tl, i32, i32, i32)
-DEF_HELPER_FLAGS_5(atomic_cmpxchgl_be, TCG_CALL_NO_WG,
-                   i32, env, tl, i32, i32, i32)
-DEF_HELPER_FLAGS_5(atomic_cmpxchgl_le, TCG_CALL_NO_WG,
-                   i32, env, tl, i32, i32, i32)
-#ifdef CONFIG_ATOMIC64
-DEF_HELPER_FLAGS_5(atomic_cmpxchgq_be, TCG_CALL_NO_WG,
-                   i64, env, tl, i64, i64, i32)
-DEF_HELPER_FLAGS_5(atomic_cmpxchgq_le, TCG_CALL_NO_WG,
-                   i64, env, tl, i64, i64, i32)
-#endif
-
-#ifdef CONFIG_ATOMIC64
-#define GEN_ATOMIC_HELPERS(NAME)                                  \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), b),              \
-                       TCG_CALL_NO_WG, i32, env, tl, i32, i32)    \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), w_le),           \
-                       TCG_CALL_NO_WG, i32, env, tl, i32, i32)    \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), w_be),           \
-                       TCG_CALL_NO_WG, i32, env, tl, i32, i32)    \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), l_le),           \
-                       TCG_CALL_NO_WG, i32, env, tl, i32, i32)    \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), l_be),           \
-                       TCG_CALL_NO_WG, i32, env, tl, i32, i32)    \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), q_le),           \
-                       TCG_CALL_NO_WG, i64, env, tl, i64, i32)    \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), q_be),           \
-                       TCG_CALL_NO_WG, i64, env, tl, i64, i32)
-#else
-#define GEN_ATOMIC_HELPERS(NAME)                                  \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), b),              \
-                       TCG_CALL_NO_WG, i32, env, tl, i32, i32)    \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), w_le),           \
-                       TCG_CALL_NO_WG, i32, env, tl, i32, i32)    \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), w_be),           \
-                       TCG_CALL_NO_WG, i32, env, tl, i32, i32)    \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), l_le),           \
-                       TCG_CALL_NO_WG, i32, env, tl, i32, i32)    \
-    DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), l_be),           \
-                       TCG_CALL_NO_WG, i32, env, tl, i32, i32)
-#endif /* CONFIG_ATOMIC64 */
-
-#else
-
-DEF_HELPER_FLAGS_4(atomic_cmpxchgb, TCG_CALL_NO_WG, i32, env, tl, i32, i32)
-DEF_HELPER_FLAGS_4(atomic_cmpxchgw_be, TCG_CALL_NO_WG, i32, env, tl, i32, i32)
-DEF_HELPER_FLAGS_4(atomic_cmpxchgw_le, TCG_CALL_NO_WG, i32, env, tl, i32, i32)
-DEF_HELPER_FLAGS_4(atomic_cmpxchgl_be, TCG_CALL_NO_WG, i32, env, tl, i32, i32)
-DEF_HELPER_FLAGS_4(atomic_cmpxchgl_le, TCG_CALL_NO_WG, i32, env, tl, i32, i32)
-#ifdef CONFIG_ATOMIC64
-DEF_HELPER_FLAGS_4(atomic_cmpxchgq_be, TCG_CALL_NO_WG, i64, env, tl, i64, i64)
-DEF_HELPER_FLAGS_4(atomic_cmpxchgq_le, TCG_CALL_NO_WG, i64, env, tl, i64, i64)
-#endif
-
-#ifdef CONFIG_ATOMIC64
-#define GEN_ATOMIC_HELPERS(NAME)                             \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), b),         \
-                       TCG_CALL_NO_WG, i32, env, tl, i32)    \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), w_le),      \
-                       TCG_CALL_NO_WG, i32, env, tl, i32)    \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), w_be),      \
-                       TCG_CALL_NO_WG, i32, env, tl, i32)    \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), l_le),      \
-                       TCG_CALL_NO_WG, i32, env, tl, i32)    \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), l_be),      \
-                       TCG_CALL_NO_WG, i32, env, tl, i32)    \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), q_le),      \
-                       TCG_CALL_NO_WG, i64, env, tl, i64)    \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), q_be),      \
-                       TCG_CALL_NO_WG, i64, env, tl, i64)
-#else
-#define GEN_ATOMIC_HELPERS(NAME)                             \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), b),         \
-                       TCG_CALL_NO_WG, i32, env, tl, i32)    \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), w_le),      \
-                       TCG_CALL_NO_WG, i32, env, tl, i32)    \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), w_be),      \
-                       TCG_CALL_NO_WG, i32, env, tl, i32)    \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), l_le),      \
-                       TCG_CALL_NO_WG, i32, env, tl, i32)    \
-    DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), l_be),      \
-                       TCG_CALL_NO_WG, i32, env, tl, i32)
-#endif /* CONFIG_ATOMIC64 */
-
-#endif /* CONFIG_SOFTMMU */
-
-GEN_ATOMIC_HELPERS(fetch_add)
-GEN_ATOMIC_HELPERS(fetch_and)
-GEN_ATOMIC_HELPERS(fetch_or)
-GEN_ATOMIC_HELPERS(fetch_xor)
-
-GEN_ATOMIC_HELPERS(add_fetch)
-GEN_ATOMIC_HELPERS(and_fetch)
-GEN_ATOMIC_HELPERS(or_fetch)
-GEN_ATOMIC_HELPERS(xor_fetch)
-
-GEN_ATOMIC_HELPERS(xchg)
-
-#undef GEN_ATOMIC_HELPERS

accel/tcg/trace-events

@@ -1,10 +0,0 @@
-# Trace events for debugging and performance instrumentation
-
-# TCG related tracing (mostly disabled by default)
-# cpu-exec.c
-disable exec_tb(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
-disable exec_tb_nocache(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
-disable exec_tb_exit(void *last_tb, unsigned int flags) "tb:%p flags=0x%x"
-
-# translate-all.c
-translate_block(void *tb, uintptr_t pc, uint8_t *tb_code) "tb:%p, pc:0x%"PRIxPTR", tb_code:%p"

accel/tcg/translate-all.h

@@ -1,36 +0,0 @@
-/*
- *  Translated block handling
- *
- *  Copyright (c) 2003 Fabrice Bellard
- *
- * 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/>.
- */
-#ifndef TRANSLATE_ALL_H
-#define TRANSLATE_ALL_H
-
-#include "exec/exec-all.h"
-
-
-/* translate-all.c */
-void tb_invalidate_phys_page_fast(tb_page_addr_t start, int len);
-void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
-                                   int is_cpu_write_access);
-void tb_invalidate_phys_range(tb_page_addr_t start, tb_page_addr_t end);
-void tb_check_watchpoint(CPUState *cpu);
-
-#ifdef CONFIG_USER_ONLY
-int page_unprotect(target_ulong address, uintptr_t pc);
-#endif
-
-#endif /* TRANSLATE_ALL_H */

accel/tcg/translator.c

@@ -1,138 +0,0 @@
-/*
- * Generic intermediate code generation.
- *
- * Copyright (C) 2016-2017 Lluís Vilanova <vilanova@ac.upc.edu>
- *
- * 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 "qemu/error-report.h"
-#include "cpu.h"
-#include "tcg/tcg.h"
-#include "tcg/tcg-op.h"
-#include "exec/exec-all.h"
-#include "exec/gen-icount.h"
-#include "exec/log.h"
-#include "exec/translator.h"
-
-/* Pairs with tcg_clear_temp_count.
-   To be called by #TranslatorOps.{translate_insn,tb_stop} if
-   (1) the target is sufficiently clean to support reporting,
-   (2) as and when all temporaries are known to be consumed.
-   For most targets, (2) is at the end of translate_insn.  */
-void translator_loop_temp_check(DisasContextBase *db)
-{
-    if (tcg_check_temp_count()) {
-        qemu_log("warning: TCG temporary leaks before "
-                 TARGET_FMT_lx "\n", db->pc_next);
-    }
-}
-
-void translator_loop(const TranslatorOps *ops, DisasContextBase *db,
-                     CPUState *cpu, TranslationBlock *tb)
-{
-    int max_insns;
-
-    /* Initialize DisasContext */
-    db->tb = tb;
-    db->pc_first = tb->pc;
-    db->pc_next = db->pc_first;
-    db->is_jmp = DISAS_NEXT;
-    db->num_insns = 0;
-    db->singlestep_enabled = cpu->singlestep_enabled;
-
-    /* Instruction counting */
-    max_insns = db->tb->cflags & CF_COUNT_MASK;
-    if (max_insns == 0) {
-        max_insns = CF_COUNT_MASK;
-    }
-    if (max_insns > TCG_MAX_INSNS) {
-        max_insns = TCG_MAX_INSNS;
-    }
-    if (db->singlestep_enabled || singlestep) {
-        max_insns = 1;
-    }
-
-    max_insns = ops->init_disas_context(db, cpu, max_insns);
-    tcg_debug_assert(db->is_jmp == DISAS_NEXT);  /* no early exit */
-
-    /* Reset the temp count so that we can identify leaks */
-    tcg_clear_temp_count();
-
-    /* Start translating.  */
-    gen_tb_start(db->tb);
-    ops->tb_start(db, cpu);
-    tcg_debug_assert(db->is_jmp == DISAS_NEXT);  /* no early exit */
-
-    while (true) {
-        db->num_insns++;
-        ops->insn_start(db, cpu);
-        tcg_debug_assert(db->is_jmp == DISAS_NEXT);  /* no early exit */
-
-        /* Pass breakpoint hits to target for further processing */
-        if (unlikely(!QTAILQ_EMPTY(&cpu->breakpoints))) {
-            CPUBreakpoint *bp;
-            QTAILQ_FOREACH(bp, &cpu->breakpoints, entry) {
-                if (bp->pc == db->pc_next) {
-                    if (ops->breakpoint_check(db, cpu, bp)) {
-                        break;
-                    }
-                }
-            }
-            /* The breakpoint_check hook may use DISAS_TOO_MANY to indicate
-               that only one more instruction is to be executed.  Otherwise
-               it should use DISAS_NORETURN when generating an exception,
-               but may use a DISAS_TARGET_* value for Something Else.  */
-            if (db->is_jmp > DISAS_TOO_MANY) {
-                break;
-            }
-        }
-
-        /* Disassemble one instruction.  The translate_insn hook should
-           update db->pc_next and db->is_jmp to indicate what should be
-           done next -- either exiting this loop or locate the start of
-           the next instruction.  */
-        if (db->num_insns == max_insns && (db->tb->cflags & CF_LAST_IO)) {
-            /* Accept I/O on the last instruction.  */
-            gen_io_start();
-            ops->translate_insn(db, cpu);
-            gen_io_end();
-        } else {
-            ops->translate_insn(db, cpu);
-        }
-
-        /* Stop translation if translate_insn so indicated.  */
-        if (db->is_jmp != DISAS_NEXT) {
-            break;
-        }
-
-        /* Stop translation if the output buffer is full,
-           or we have executed all of the allowed instructions.  */
-        if (tcg_op_buf_full() || db->num_insns >= max_insns) {
-            db->is_jmp = DISAS_TOO_MANY;
-            break;
-        }
-    }
-
-    /* Emit code to exit the TB, as indicated by db->is_jmp.  */
-    ops->tb_stop(db, cpu);
-    gen_tb_end(db->tb, db->num_insns);
-
-    /* The disas_log hook may use these values rather than recompute.  */
-    db->tb->size = db->pc_next - db->pc_first;
-    db->tb->icount = db->num_insns;
-
-#ifdef DEBUG_DISAS
-    if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)
-        && qemu_log_in_addr_range(db->pc_first)) {
-        qemu_log_lock();
-        qemu_log("----------------\n");
-        ops->disas_log(db, cpu);
-        qemu_log("\n");
-        qemu_log_unlock();
-    }
-#endif
-}

accel/tcg/user-exec-stub.c

@@ -1,34 +0,0 @@
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "qom/cpu.h"
-#include "sysemu/replay.h"
-
-void cpu_resume(CPUState *cpu)
-{
-}
-
-void qemu_init_vcpu(CPUState *cpu)
-{
-}
-
-/* User mode emulation does not support record/replay yet.  */
-
-bool replay_exception(void)
-{
-    return true;
-}
-
-bool replay_has_exception(void)
-{
-    return false;
-}
-
-bool replay_interrupt(void)
-{
-    return true;
-}
-
-bool replay_has_interrupt(void)
-{
-    return false;
-}

accel/tcg/user-exec.c

@@ -1,627 +0,0 @@
-/*
- *  User emulator execution
- *
- *  Copyright (c) 2003-2005 Fabrice Bellard
- *
- * 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 "cpu.h"
-#include "disas/disas.h"
-#include "exec/exec-all.h"
-#include "tcg.h"
-#include "qemu/bitops.h"
-#include "exec/cpu_ldst.h"
-#include "translate-all.h"
-#include "exec/helper-proto.h"
-
-#undef EAX
-#undef ECX
-#undef EDX
-#undef EBX
-#undef ESP
-#undef EBP
-#undef ESI
-#undef EDI
-#undef EIP
-#ifdef __linux__
-#include <sys/ucontext.h>
-#endif
-
-//#define DEBUG_SIGNAL
-
-/* exit the current TB from a signal handler. The host registers are
-   restored in a state compatible with the CPU emulator
- */
-static void cpu_exit_tb_from_sighandler(CPUState *cpu, sigset_t *old_set)
-{
-    /* XXX: use siglongjmp ? */
-    sigprocmask(SIG_SETMASK, old_set, NULL);
-    cpu_loop_exit_noexc(cpu);
-}
-
-/* 'pc' is the host PC at which the exception was raised. 'address' is
-   the effective address of the memory exception. 'is_write' is 1 if a
-   write caused the exception and otherwise 0'. 'old_set' is the
-   signal set which should be restored */
-static inline int handle_cpu_signal(uintptr_t pc, unsigned long address,
-                                    int is_write, sigset_t *old_set)
-{
-    CPUState *cpu = current_cpu;
-    CPUClass *cc;
-    int ret;
-
-    /* For synchronous signals we expect to be coming from the vCPU
-     * thread (so current_cpu should be valid) and either from running
-     * code or during translation which can fault as we cross pages.
-     *
-     * If neither is true then something has gone wrong and we should
-     * abort rather than try and restart the vCPU execution.
-     */
-    if (!cpu || !cpu->running) {
-        printf("qemu:%s received signal outside vCPU context @ pc=0x%"
-               PRIxPTR "\n",  __func__, pc);
-        abort();
-    }
-
-#if defined(DEBUG_SIGNAL)
-    printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
-           pc, address, is_write, *(unsigned long *)old_set);
-#endif
-    /* XXX: locking issue */
-    if (is_write && h2g_valid(address)) {
-        switch (page_unprotect(h2g(address), pc)) {
-        case 0:
-            /* Fault not caused by a page marked unwritable to protect
-             * cached translations, must be the guest binary's problem
-             */
-            break;
-        case 1:
-            /* Fault caused by protection of cached translation; TBs
-             * invalidated, so resume execution
-             */
-            return 1;
-        case 2:
-            /* Fault caused by protection of cached translation, and the
-             * currently executing TB was modified and must be exited
-             * immediately.
-             */
-            cpu_exit_tb_from_sighandler(cpu, old_set);
-            g_assert_not_reached();
-        default:
-            g_assert_not_reached();
-        }
-    }
-
-    /* Convert forcefully to guest address space, invalid addresses
-       are still valid segv ones */
-    address = h2g_nocheck(address);
-
-    cc = CPU_GET_CLASS(cpu);
-    /* see if it is an MMU fault */
-    g_assert(cc->handle_mmu_fault);
-    ret = cc->handle_mmu_fault(cpu, address, is_write, MMU_USER_IDX);
-    if (ret < 0) {
-        return 0; /* not an MMU fault */
-    }
-    if (ret == 0) {
-        return 1; /* the MMU fault was handled without causing real CPU fault */
-    }
-
-    /* Now we have a real cpu fault.  Since this is the exact location of
-     * the exception, we must undo the adjustment done by cpu_restore_state
-     * for handling call return addresses.  */
-    cpu_restore_state(cpu, pc + GETPC_ADJ);
-
-    sigprocmask(SIG_SETMASK, old_set, NULL);
-    cpu_loop_exit(cpu);
-
-    /* never comes here */
-    return 1;
-}
-
-#if defined(__i386__)
-
-#if defined(__NetBSD__)
-#include <ucontext.h>
-
-#define EIP_sig(context)     ((context)->uc_mcontext.__gregs[_REG_EIP])
-#define TRAP_sig(context)    ((context)->uc_mcontext.__gregs[_REG_TRAPNO])
-#define ERROR_sig(context)   ((context)->uc_mcontext.__gregs[_REG_ERR])
-#define MASK_sig(context)    ((context)->uc_sigmask)
-#elif defined(__FreeBSD__) || defined(__DragonFly__)
-#include <ucontext.h>
-
-#define EIP_sig(context)  (*((unsigned long *)&(context)->uc_mcontext.mc_eip))
-#define TRAP_sig(context)    ((context)->uc_mcontext.mc_trapno)
-#define ERROR_sig(context)   ((context)->uc_mcontext.mc_err)
-#define MASK_sig(context)    ((context)->uc_sigmask)
-#elif defined(__OpenBSD__)
-#define EIP_sig(context)     ((context)->sc_eip)
-#define TRAP_sig(context)    ((context)->sc_trapno)
-#define ERROR_sig(context)   ((context)->sc_err)
-#define MASK_sig(context)    ((context)->sc_mask)
-#else
-#define EIP_sig(context)     ((context)->uc_mcontext.gregs[REG_EIP])
-#define TRAP_sig(context)    ((context)->uc_mcontext.gregs[REG_TRAPNO])
-#define ERROR_sig(context)   ((context)->uc_mcontext.gregs[REG_ERR])
-#define MASK_sig(context)    ((context)->uc_sigmask)
-#endif
-
-int cpu_signal_handler(int host_signum, void *pinfo,
-                       void *puc)
-{
-    siginfo_t *info = pinfo;
-#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
-    ucontext_t *uc = puc;
-#elif defined(__OpenBSD__)
-    struct sigcontext *uc = puc;
-#else
-    ucontext_t *uc = puc;
-#endif
-    unsigned long pc;
-    int trapno;
-
-#ifndef REG_EIP
-/* for glibc 2.1 */
-#define REG_EIP    EIP
-#define REG_ERR    ERR
-#define REG_TRAPNO TRAPNO
-#endif
-    pc = EIP_sig(uc);
-    trapno = TRAP_sig(uc);
-    return handle_cpu_signal(pc, (unsigned long)info->si_addr,
-                             trapno == 0xe ?
-                             (ERROR_sig(uc) >> 1) & 1 : 0,
-                             &MASK_sig(uc));
-}
-
-#elif defined(__x86_64__)
-
-#ifdef __NetBSD__
-#define PC_sig(context)       _UC_MACHINE_PC(context)
-#define TRAP_sig(context)     ((context)->uc_mcontext.__gregs[_REG_TRAPNO])
-#define ERROR_sig(context)    ((context)->uc_mcontext.__gregs[_REG_ERR])
-#define MASK_sig(context)     ((context)->uc_sigmask)
-#elif defined(__OpenBSD__)
-#define PC_sig(context)       ((context)->sc_rip)
-#define TRAP_sig(context)     ((context)->sc_trapno)
-#define ERROR_sig(context)    ((context)->sc_err)
-#define MASK_sig(context)     ((context)->sc_mask)
-#elif defined(__FreeBSD__) || defined(__DragonFly__)
-#include <ucontext.h>
-
-#define PC_sig(context)  (*((unsigned long *)&(context)->uc_mcontext.mc_rip))
-#define TRAP_sig(context)     ((context)->uc_mcontext.mc_trapno)
-#define ERROR_sig(context)    ((context)->uc_mcontext.mc_err)
-#define MASK_sig(context)     ((context)->uc_sigmask)
-#else
-#define PC_sig(context)       ((context)->uc_mcontext.gregs[REG_RIP])
-#define TRAP_sig(context)     ((context)->uc_mcontext.gregs[REG_TRAPNO])
-#define ERROR_sig(context)    ((context)->uc_mcontext.gregs[REG_ERR])
-#define MASK_sig(context)     ((context)->uc_sigmask)
-#endif
-
-int cpu_signal_handler(int host_signum, void *pinfo,
-                       void *puc)
-{
-    siginfo_t *info = pinfo;
-    unsigned long pc;
-#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
-    ucontext_t *uc = puc;
-#elif defined(__OpenBSD__)
-    struct sigcontext *uc = puc;
-#else
-    ucontext_t *uc = puc;
-#endif
-
-    pc = PC_sig(uc);
-    return handle_cpu_signal(pc, (unsigned long)info->si_addr,
-                             TRAP_sig(uc) == 0xe ?
-                             (ERROR_sig(uc) >> 1) & 1 : 0,
-                             &MASK_sig(uc));
-}
-
-#elif defined(_ARCH_PPC)
-
-/***********************************************************************
- * signal context platform-specific definitions
- * From Wine
- */
-#ifdef linux
-/* All Registers access - only for local access */
-#define REG_sig(reg_name, context)              \
-    ((context)->uc_mcontext.regs->reg_name)
-/* Gpr Registers access  */
-#define GPR_sig(reg_num, context)              REG_sig(gpr[reg_num], context)
-/* Program counter */
-#define IAR_sig(context)                       REG_sig(nip, context)
-/* Machine State Register (Supervisor) */
-#define MSR_sig(context)                       REG_sig(msr, context)
-/* Count register */
-#define CTR_sig(context)                       REG_sig(ctr, context)
-/* User's integer exception register */
-#define XER_sig(context)                       REG_sig(xer, context)
-/* Link register */
-#define LR_sig(context)                        REG_sig(link, context)
-/* Condition register */
-#define CR_sig(context)                        REG_sig(ccr, context)
-
-/* Float Registers access  */
-#define FLOAT_sig(reg_num, context)                                     \
-    (((double *)((char *)((context)->uc_mcontext.regs + 48 * 4)))[reg_num])
-#define FPSCR_sig(context) \
-    (*(int *)((char *)((context)->uc_mcontext.regs + (48 + 32 * 2) * 4)))
-/* Exception Registers access */
-#define DAR_sig(context)                       REG_sig(dar, context)
-#define DSISR_sig(context)                     REG_sig(dsisr, context)
-#define TRAP_sig(context)                      REG_sig(trap, context)
-#endif /* linux */
-
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-#include <ucontext.h>
-#define IAR_sig(context)               ((context)->uc_mcontext.mc_srr0)
-#define MSR_sig(context)               ((context)->uc_mcontext.mc_srr1)
-#define CTR_sig(context)               ((context)->uc_mcontext.mc_ctr)
-#define XER_sig(context)               ((context)->uc_mcontext.mc_xer)
-#define LR_sig(context)                ((context)->uc_mcontext.mc_lr)
-#define CR_sig(context)                ((context)->uc_mcontext.mc_cr)
-/* Exception Registers access */
-#define DAR_sig(context)               ((context)->uc_mcontext.mc_dar)
-#define DSISR_sig(context)             ((context)->uc_mcontext.mc_dsisr)
-#define TRAP_sig(context)              ((context)->uc_mcontext.mc_exc)
-#endif /* __FreeBSD__|| __FreeBSD_kernel__ */
-
-int cpu_signal_handler(int host_signum, void *pinfo,
-                       void *puc)
-{
-    siginfo_t *info = pinfo;
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-    ucontext_t *uc = puc;
-#else
-    ucontext_t *uc = puc;
-#endif
-    unsigned long pc;
-    int is_write;
-
-    pc = IAR_sig(uc);
-    is_write = 0;
-#if 0
-    /* ppc 4xx case */
-    if (DSISR_sig(uc) & 0x00800000) {
-        is_write = 1;
-    }
-#else
-    if (TRAP_sig(uc) != 0x400 && (DSISR_sig(uc) & 0x02000000)) {
-        is_write = 1;
-    }
-#endif
-    return handle_cpu_signal(pc, (unsigned long)info->si_addr,
-                             is_write, &uc->uc_sigmask);
-}
-
-#elif defined(__alpha__)
-
-int cpu_signal_handler(int host_signum, void *pinfo,
-                           void *puc)
-{
-    siginfo_t *info = pinfo;
-    ucontext_t *uc = puc;
-    uint32_t *pc = uc->uc_mcontext.sc_pc;
-    uint32_t insn = *pc;
-    int is_write = 0;
-
-    /* XXX: need kernel patch to get write flag faster */
-    switch (insn >> 26) {
-    case 0x0d: /* stw */
-    case 0x0e: /* stb */
-    case 0x0f: /* stq_u */
-    case 0x24: /* stf */
-    case 0x25: /* stg */
-    case 0x26: /* sts */
-    case 0x27: /* stt */
-    case 0x2c: /* stl */
-    case 0x2d: /* stq */
-    case 0x2e: /* stl_c */
-    case 0x2f: /* stq_c */
-        is_write = 1;
-    }
-
-    return handle_cpu_signal(pc, (unsigned long)info->si_addr,
-                             is_write, &uc->uc_sigmask);
-}
-#elif defined(__sparc__)
-
-int cpu_signal_handler(int host_signum, void *pinfo,
-                       void *puc)
-{
-    siginfo_t *info = pinfo;
-    int is_write;
-    uint32_t insn;
-#if !defined(__arch64__) || defined(CONFIG_SOLARIS)
-    uint32_t *regs = (uint32_t *)(info + 1);
-    void *sigmask = (regs + 20);
-    /* XXX: is there a standard glibc define ? */
-    unsigned long pc = regs[1];
-#else
-#ifdef __linux__
-    struct sigcontext *sc = puc;
-    unsigned long pc = sc->sigc_regs.tpc;
-    void *sigmask = (void *)sc->sigc_mask;
-#elif defined(__OpenBSD__)
-    struct sigcontext *uc = puc;
-    unsigned long pc = uc->sc_pc;
-    void *sigmask = (void *)(long)uc->sc_mask;
-#elif defined(__NetBSD__)
-    ucontext_t *uc = puc;
-    unsigned long pc = _UC_MACHINE_PC(uc);
-    void *sigmask = (void *)&uc->uc_sigmask;
-#endif
-#endif
-
-    /* XXX: need kernel patch to get write flag faster */
-    is_write = 0;
-    insn = *(uint32_t *)pc;
-    if ((insn >> 30) == 3) {
-        switch ((insn >> 19) & 0x3f) {
-        case 0x05: /* stb */
-        case 0x15: /* stba */
-        case 0x06: /* sth */
-        case 0x16: /* stha */
-        case 0x04: /* st */
-        case 0x14: /* sta */
-        case 0x07: /* std */
-        case 0x17: /* stda */
-        case 0x0e: /* stx */
-        case 0x1e: /* stxa */
-        case 0x24: /* stf */
-        case 0x34: /* stfa */
-        case 0x27: /* stdf */
-        case 0x37: /* stdfa */
-        case 0x26: /* stqf */
-        case 0x36: /* stqfa */
-        case 0x25: /* stfsr */
-        case 0x3c: /* casa */
-        case 0x3e: /* casxa */
-            is_write = 1;
-            break;
-        }
-    }
-    return handle_cpu_signal(pc, (unsigned long)info->si_addr,
-                             is_write, sigmask);
-}
-
-#elif defined(__arm__)
-
-#if defined(__NetBSD__)
-#include <ucontext.h>
-#endif
-
-int cpu_signal_handler(int host_signum, void *pinfo,
-                       void *puc)
-{
-    siginfo_t *info = pinfo;
-#if defined(__NetBSD__)
-    ucontext_t *uc = puc;
-#else
-    ucontext_t *uc = puc;
-#endif
-    unsigned long pc;
-    int is_write;
-
-#if defined(__NetBSD__)
-    pc = uc->uc_mcontext.__gregs[_REG_R15];
-#elif defined(__GLIBC__) && (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3))
-    pc = uc->uc_mcontext.gregs[R15];
-#else
-    pc = uc->uc_mcontext.arm_pc;
-#endif
-
-    /* error_code is the FSR value, in which bit 11 is WnR (assuming a v6 or
-     * later processor; on v5 we will always report this as a read).
-     */
-    is_write = extract32(uc->uc_mcontext.error_code, 11, 1);
-    return handle_cpu_signal(pc, (unsigned long)info->si_addr,
-                             is_write,
-                             &uc->uc_sigmask);
-}
-
-#elif defined(__aarch64__)
-
-int cpu_signal_handler(int host_signum, void *pinfo, void *puc)
-{
-    siginfo_t *info = pinfo;
-    ucontext_t *uc = puc;
-    uintptr_t pc = uc->uc_mcontext.pc;
-    uint32_t insn = *(uint32_t *)pc;
-    bool is_write;
-
-    /* XXX: need kernel patch to get write flag faster.  */
-    is_write = (   (insn & 0xbfff0000) == 0x0c000000   /* C3.3.1 */
-                || (insn & 0xbfe00000) == 0x0c800000   /* C3.3.2 */
-                || (insn & 0xbfdf0000) == 0x0d000000   /* C3.3.3 */
-                || (insn & 0xbfc00000) == 0x0d800000   /* C3.3.4 */
-                || (insn & 0x3f400000) == 0x08000000   /* C3.3.6 */
-                || (insn & 0x3bc00000) == 0x39000000   /* C3.3.13 */
-                || (insn & 0x3fc00000) == 0x3d800000   /* ... 128bit */
-                /* Ingore bits 10, 11 & 21, controlling indexing.  */
-                || (insn & 0x3bc00000) == 0x38000000   /* C3.3.8-12 */
-                || (insn & 0x3fe00000) == 0x3c800000   /* ... 128bit */
-                /* Ignore bits 23 & 24, controlling indexing.  */
-                || (insn & 0x3a400000) == 0x28000000); /* C3.3.7,14-16 */
-
-    return handle_cpu_signal(pc, (uintptr_t)info->si_addr,
-                             is_write, &uc->uc_sigmask);
-}
-
-#elif defined(__ia64)
-
-#ifndef __ISR_VALID
-  /* This ought to be in <bits/siginfo.h>... */
-# define __ISR_VALID    1
-#endif
-
-int cpu_signal_handler(int host_signum, void *pinfo, void *puc)
-{
-    siginfo_t *info = pinfo;
-    ucontext_t *uc = puc;
-    unsigned long ip;
-    int is_write = 0;
-
-    ip = uc->uc_mcontext.sc_ip;
-    switch (host_signum) {
-    case SIGILL:
-    case SIGFPE:
-    case SIGSEGV:
-    case SIGBUS:
-    case SIGTRAP:
-        if (info->si_code && (info->si_segvflags & __ISR_VALID)) {
-            /* ISR.W (write-access) is bit 33:  */
-            is_write = (info->si_isr >> 33) & 1;
-        }
-        break;
-
-    default:
-        break;
-    }
-    return handle_cpu_signal(ip, (unsigned long)info->si_addr,
-                             is_write,
-                             (sigset_t *)&uc->uc_sigmask);
-}
-
-#elif defined(__s390__)
-
-int cpu_signal_handler(int host_signum, void *pinfo,
-                       void *puc)
-{
-    siginfo_t *info = pinfo;
-    ucontext_t *uc = puc;
-    unsigned long pc;
-    uint16_t *pinsn;
-    int is_write = 0;
-
-    pc = uc->uc_mcontext.psw.addr;
-
-    /* ??? On linux, the non-rt signal handler has 4 (!) arguments instead
-       of the normal 2 arguments.  The 3rd argument contains the "int_code"
-       from the hardware which does in fact contain the is_write value.
-       The rt signal handler, as far as I can tell, does not give this value
-       at all.  Not that we could get to it from here even if it were.  */
-    /* ??? This is not even close to complete, since it ignores all
-       of the read-modify-write instructions.  */
-    pinsn = (uint16_t *)pc;
-    switch (pinsn[0] >> 8) {
-    case 0x50: /* ST */
-    case 0x42: /* STC */
-    case 0x40: /* STH */
-        is_write = 1;
-        break;
-    case 0xc4: /* RIL format insns */
-        switch (pinsn[0] & 0xf) {
-        case 0xf: /* STRL */
-        case 0xb: /* STGRL */
-        case 0x7: /* STHRL */
-            is_write = 1;
-        }
-        break;
-    case 0xe3: /* RXY format insns */
-        switch (pinsn[2] & 0xff) {
-        case 0x50: /* STY */
-        case 0x24: /* STG */
-        case 0x72: /* STCY */
-        case 0x70: /* STHY */
-        case 0x8e: /* STPQ */
-        case 0x3f: /* STRVH */
-        case 0x3e: /* STRV */
-        case 0x2f: /* STRVG */
-            is_write = 1;
-        }
-        break;
-    }
-    return handle_cpu_signal(pc, (unsigned long)info->si_addr,
-                             is_write, &uc->uc_sigmask);
-}
-
-#elif defined(__mips__)
-
-int cpu_signal_handler(int host_signum, void *pinfo,
-                       void *puc)
-{
-    siginfo_t *info = pinfo;
-    ucontext_t *uc = puc;
-    greg_t pc = uc->uc_mcontext.pc;
-    int is_write;
-
-    /* XXX: compute is_write */
-    is_write = 0;
-    return handle_cpu_signal(pc, (unsigned long)info->si_addr,
-                             is_write, &uc->uc_sigmask);
-}
-
-#else
-
-#error host CPU specific signal handler needed
-
-#endif
-
-/* The softmmu versions of these helpers are in cputlb.c.  */
-
-/* Do not allow unaligned operations to proceed.  Return the host address.  */
-static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr,
-                               int size, uintptr_t retaddr)
-{
-    /* Enforce qemu required alignment.  */
-    if (unlikely(addr & (size - 1))) {
-        cpu_loop_exit_atomic(ENV_GET_CPU(env), retaddr);
-    }
-    return g2h(addr);
-}
-
-/* Macro to call the above, with local variables from the use context.  */
-#define ATOMIC_MMU_LOOKUP  atomic_mmu_lookup(env, addr, DATA_SIZE, GETPC())
-
-#define ATOMIC_NAME(X)   HELPER(glue(glue(atomic_ ## X, SUFFIX), END))
-#define EXTRA_ARGS
-
-#define DATA_SIZE 1
-#include "atomic_template.h"
-
-#define DATA_SIZE 2
-#include "atomic_template.h"
-
-#define DATA_SIZE 4
-#include "atomic_template.h"
-
-#ifdef CONFIG_ATOMIC64
-#define DATA_SIZE 8
-#include "atomic_template.h"
-#endif
-
-/* The following is only callable from other helpers, and matches up
-   with the softmmu version.  */
-
-#ifdef CONFIG_ATOMIC128
-
-#undef EXTRA_ARGS
-#undef ATOMIC_NAME
-#undef ATOMIC_MMU_LOOKUP
-
-#define EXTRA_ARGS     , TCGMemOpIdx oi, uintptr_t retaddr
-#define ATOMIC_NAME(X) \
-    HELPER(glue(glue(glue(atomic_ ## X, SUFFIX), END), _mmu))
-#define ATOMIC_MMU_LOOKUP  atomic_mmu_lookup(env, addr, DATA_SIZE, retaddr)
-
-#define DATA_SIZE 16
-#include "atomic_template.h"
-#endif /* CONFIG_ATOMIC128 */

aio-posix.c

@@ -0,0 +1,254 @@
+/*
+ * 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.
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+
+#include "qemu-common.h"
+#include "block/block.h"
+#include "qemu/queue.h"
+#include "qemu/sockets.h"
+
+struct AioHandler
+{
+    GPollFD pfd;
+    IOHandler *io_read;
+    IOHandler *io_write;
+    int deleted;
+    int pollfds_idx;
+    void *opaque;
+    QLIST_ENTRY(AioHandler) node;
+};
+
+static AioHandler *find_aio_handler(AioContext *ctx, int fd)
+{
+    AioHandler *node;
+
+    QLIST_FOREACH(node, &ctx->aio_handlers, node) {
+        if (node->pfd.fd == fd)
+            if (!node->deleted)
+                return node;
+    }
+
+    return NULL;
+}
+
+void aio_set_fd_handler(AioContext *ctx,
+                        int fd,
+                        IOHandler *io_read,
+                        IOHandler *io_write,
+                        void *opaque)
+{
+    AioHandler *node;
+
+    node = find_aio_handler(ctx, fd);
+
+    /* Are we deleting the fd handler? */
+    if (!io_read && !io_write) {
+        if (node) {
+            g_source_remove_poll(&ctx->source, &node->pfd);
+
+            /* If the lock is held, just mark the node as deleted */
+            if (ctx->walking_handlers) {
+                node->deleted = 1;
+                node->pfd.revents = 0;
+            } 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);
+                g_free(node);
+            }
+        }
+    } else {
+        if (node == NULL) {
+            /* Alloc and insert if it's not already there */
+            node = g_new0(AioHandler, 1);
+            node->pfd.fd = fd;
+            QLIST_INSERT_HEAD(&ctx->aio_handlers, node, node);
+
+            g_source_add_poll(&ctx->source, &node->pfd);
+        }
+        /* Update handler with latest information */
+        node->io_read = io_read;
+        node->io_write = io_write;
+        node->opaque = opaque;
+        node->pollfds_idx = -1;
+
+        node->pfd.events = (io_read ? G_IO_IN | G_IO_HUP | G_IO_ERR : 0);
+        node->pfd.events |= (io_write ? G_IO_OUT | G_IO_ERR : 0);
+    }
+
+    aio_notify(ctx);
+}
+
+void aio_set_event_notifier(AioContext *ctx,
+                            EventNotifier *notifier,
+                            EventNotifierHandler *io_read)
+{
+    aio_set_fd_handler(ctx, event_notifier_get_fd(notifier),
+                       (IOHandler *)io_read, NULL, notifier);
+}
+
+bool aio_prepare(AioContext *ctx)
+{
+    return false;
+}
+
+bool aio_pending(AioContext *ctx)
+{
+    AioHandler *node;
+
+    QLIST_FOREACH(node, &ctx->aio_handlers, node) {
+        int revents;
+
+        revents = node->pfd.revents & node->pfd.events;
+        if (revents & (G_IO_IN | G_IO_HUP | G_IO_ERR) && node->io_read) {
+            return true;
+        }
+        if (revents & (G_IO_OUT | G_IO_ERR) && node->io_write) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool aio_dispatch(AioContext *ctx)
+{
+    AioHandler *node;
+    bool progress = false;
+
+    /*
+     * If there are callbacks left that have been queued, we need to call them.
+     * Do not call select in this case, because it is possible that the caller
+     * does not need a complete flush (as is the case for aio_poll loops).
+     */
+    if (aio_bh_poll(ctx)) {
+        progress = true;
+    }
+
+    /*
+     * We have to walk very carefully in case aio_set_fd_handler is
+     * called while we're walking.
+     */
+    node = QLIST_FIRST(&ctx->aio_handlers);
+    while (node) {
+        AioHandler *tmp;
+        int revents;
+
+        ctx->walking_handlers++;
+
+        revents = node->pfd.revents & node->pfd.events;
+        node->pfd.revents = 0;
+
+        if (!node->deleted &&
+            (revents & (G_IO_IN | G_IO_HUP | G_IO_ERR)) &&
+            node->io_read) {
+            node->io_read(node->opaque);
+
+            /* aio_notify() does not count as progress */
+            if (node->opaque != &ctx->notifier) {
+                progress = true;
+            }
+        }
+        if (!node->deleted &&
+            (revents & (G_IO_OUT | G_IO_ERR)) &&
+            node->io_write) {
+            node->io_write(node->opaque);
+            progress = true;
+        }
+
+        tmp = node;
+        node = QLIST_NEXT(node, node);
+
+        ctx->walking_handlers--;
+
+        if (!ctx->walking_handlers && tmp->deleted) {
+            QLIST_REMOVE(tmp, node);
+            g_free(tmp);
+        }
+    }
+
+    /* Run our timers */
+    progress |= timerlistgroup_run_timers(&ctx->tlg);
+
+    return progress;
+}
+
+bool aio_poll(AioContext *ctx, bool blocking)
+{
+    AioHandler *node;
+    bool was_dispatching;
+    int ret;
+    bool progress;
+
+    was_dispatching = ctx->dispatching;
+    progress = false;
+
+    /* aio_notify can avoid the expensive event_notifier_set if
+     * everything (file descriptors, bottom halves, timers) will
+     * be re-evaluated before the next blocking poll().  This is
+     * already true when aio_poll is called with blocking == false;
+     * if blocking == true, it is only true after poll() returns.
+     *
+     * If we're in a nested event loop, ctx->dispatching might be true.
+     * In that case we can restore it just before returning, but we
+     * have to clear it now.
+     */
+    aio_set_dispatching(ctx, !blocking);
+
+    ctx->walking_handlers++;
+
+    g_array_set_size(ctx->pollfds, 0);
+
+    /* fill pollfds */
+    QLIST_FOREACH(node, &ctx->aio_handlers, node) {
+        node->pollfds_idx = -1;
+        if (!node->deleted && node->pfd.events) {
+            GPollFD pfd = {
+                .fd = node->pfd.fd,
+                .events = node->pfd.events,
+            };
+            node->pollfds_idx = ctx->pollfds->len;
+            g_array_append_val(ctx->pollfds, pfd);
+        }
+    }
+
+    ctx->walking_handlers--;
+
+    /* wait until next event */
+    ret = qemu_poll_ns((GPollFD *)ctx->pollfds->data,
+                         ctx->pollfds->len,
+                         blocking ? aio_compute_timeout(ctx) : 0);
+
+    /* if we have any readable fds, dispatch event */
+    if (ret > 0) {
+        QLIST_FOREACH(node, &ctx->aio_handlers, node) {
+            if (node->pollfds_idx != -1) {
+                GPollFD *pfd = &g_array_index(ctx->pollfds, GPollFD,
+                                              node->pollfds_idx);
+                node->pfd.revents = pfd->revents;
+            }
+        }
+    }
+
+    /* Run dispatch even if there were no readable fds to run timers */
+    aio_set_dispatching(ctx, true);
+    if (aio_dispatch(ctx)) {
+        progress = true;
+    }
+
+    aio_set_dispatching(ctx, was_dispatching);
+    return progress;
+}

aio-win32.c

@@ -0,0 +1,353 @@
+/*
+ * QEMU aio implementation
+ *
+ * Copyright IBM Corp., 2008
+ * Copyright Red Hat Inc., 2012
+ *
+ * Authors:
+ *  Anthony Liguori   <aliguori@us.ibm.com>
+ *  Paolo Bonzini     <pbonzini@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+
+#include "qemu-common.h"
+#include "block/block.h"
+#include "qemu/queue.h"
+#include "qemu/sockets.h"
+
+struct AioHandler {
+    EventNotifier *e;
+    IOHandler *io_read;
+    IOHandler *io_write;
+    EventNotifierHandler *io_notify;
+    GPollFD pfd;
+    int deleted;
+    void *opaque;
+    QLIST_ENTRY(AioHandler) node;
+};
+
+void aio_set_fd_handler(AioContext *ctx,
+                        int fd,
+                        IOHandler *io_read,
+                        IOHandler *io_write,
+                        void *opaque)
+{
+    /* fd is a SOCKET in our case */
+    AioHandler *node;
+
+    QLIST_FOREACH(node, &ctx->aio_handlers, node) {
+        if (node->pfd.fd == fd && !node->deleted) {
+            break;
+        }
+    }
+
+    /* 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 (ctx->walking_handlers) {
+                node->deleted = 1;
+                node->pfd.revents = 0;
+            } 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);
+                g_free(node);
+            }
+        }
+    } else {
+        HANDLE event;
+
+        if (node == NULL) {
+            /* Alloc and insert if it's not already there */
+            node = g_new0(AioHandler, 1);
+            node->pfd.fd = fd;
+            QLIST_INSERT_HEAD(&ctx->aio_handlers, node, node);
+        }
+
+        node->pfd.events = 0;
+        if (node->io_read) {
+            node->pfd.events |= G_IO_IN;
+        }
+        if (node->io_write) {
+            node->pfd.events |= G_IO_OUT;
+        }
+
+        node->e = &ctx->notifier;
+
+        /* Update handler with latest information */
+        node->opaque = opaque;
+        node->io_read = io_read;
+        node->io_write = io_write;
+
+        event = event_notifier_get_handle(&ctx->notifier);
+        WSAEventSelect(node->pfd.fd, event,
+                       FD_READ | FD_ACCEPT | FD_CLOSE |
+                       FD_CONNECT | FD_WRITE | FD_OOB);
+    }
+
+    aio_notify(ctx);
+}
+
+void aio_set_event_notifier(AioContext *ctx,
+                            EventNotifier *e,
+                            EventNotifierHandler *io_notify)
+{
+    AioHandler *node;
+
+    QLIST_FOREACH(node, &ctx->aio_handlers, node) {
+        if (node->e == e && !node->deleted) {
+            break;
+        }
+    }
+
+    /* Are we deleting the fd handler? */
+    if (!io_notify) {
+        if (node) {
+            g_source_remove_poll(&ctx->source, &node->pfd);
+
+            /* If the lock is held, just mark the node as deleted */
+            if (ctx->walking_handlers) {
+                node->deleted = 1;
+                node->pfd.revents = 0;
+            } 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);
+                g_free(node);
+            }
+        }
+    } else {
+        if (node == NULL) {
+            /* Alloc and insert if it's not already there */
+            node = g_new0(AioHandler, 1);
+            node->e = e;
+            node->pfd.fd = (uintptr_t)event_notifier_get_handle(e);
+            node->pfd.events = G_IO_IN;
+            QLIST_INSERT_HEAD(&ctx->aio_handlers, node, node);
+
+            g_source_add_poll(&ctx->source, &node->pfd);
+        }
+        /* Update handler with latest information */
+        node->io_notify = io_notify;
+    }
+
+    aio_notify(ctx);
+}
+
+bool aio_prepare(AioContext *ctx)
+{
+    static struct timeval tv0;
+    AioHandler *node;
+    bool have_select_revents = false;
+    fd_set rfds, wfds;
+
+    /* fill fd sets */
+    FD_ZERO(&rfds);
+    FD_ZERO(&wfds);
+    QLIST_FOREACH(node, &ctx->aio_handlers, node) {
+        if (node->io_read) {
+            FD_SET ((SOCKET)node->pfd.fd, &rfds);
+        }
+        if (node->io_write) {
+            FD_SET ((SOCKET)node->pfd.fd, &wfds);
+        }
+    }
+
+    if (select(0, &rfds, &wfds, NULL, &tv0) > 0) {
+        QLIST_FOREACH(node, &ctx->aio_handlers, node) {
+            node->pfd.revents = 0;
+            if (FD_ISSET(node->pfd.fd, &rfds)) {
+                node->pfd.revents |= G_IO_IN;
+                have_select_revents = true;
+            }
+
+            if (FD_ISSET(node->pfd.fd, &wfds)) {
+                node->pfd.revents |= G_IO_OUT;
+                have_select_revents = true;
+            }
+        }
+    }
+
+    return have_select_revents;
+}
+
+bool aio_pending(AioContext *ctx)
+{
+    AioHandler *node;
+
+    QLIST_FOREACH(node, &ctx->aio_handlers, node) {
+        if (node->pfd.revents && node->io_notify) {
+            return true;
+        }
+
+        if ((node->pfd.revents & G_IO_IN) && node->io_read) {
+            return true;
+        }
+        if ((node->pfd.revents & G_IO_OUT) && node->io_write) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+static bool aio_dispatch_handlers(AioContext *ctx, HANDLE event)
+{
+    AioHandler *node;
+    bool progress = false;
+
+    /*
+     * We have to walk very carefully in case aio_set_fd_handler is
+     * called while we're walking.
+     */
+    node = QLIST_FIRST(&ctx->aio_handlers);
+    while (node) {
+        AioHandler *tmp;
+        int revents = node->pfd.revents;
+
+        ctx->walking_handlers++;
+
+        if (!node->deleted &&
+            (revents || event_notifier_get_handle(node->e) == event) &&
+            node->io_notify) {
+            node->pfd.revents = 0;
+            node->io_notify(node->e);
+
+            /* aio_notify() does not count as progress */
+            if (node->e != &ctx->notifier) {
+                progress = true;
+            }
+        }
+
+        if (!node->deleted &&
+            (node->io_read || node->io_write)) {
+            node->pfd.revents = 0;
+            if ((revents & G_IO_IN) && node->io_read) {
+                node->io_read(node->opaque);
+                progress = true;
+            }
+            if ((revents & G_IO_OUT) && node->io_write) {
+                node->io_write(node->opaque);
+                progress = true;
+            }
+
+            /* if the next select() will return an event, we have progressed */
+            if (event == event_notifier_get_handle(&ctx->notifier)) {
+                WSANETWORKEVENTS ev;
+                WSAEnumNetworkEvents(node->pfd.fd, event, &ev);
+                if (ev.lNetworkEvents) {
+                    progress = true;
+                }
+            }
+        }
+
+        tmp = node;
+        node = QLIST_NEXT(node, node);
+
+        ctx->walking_handlers--;
+
+        if (!ctx->walking_handlers && tmp->deleted) {
+            QLIST_REMOVE(tmp, node);
+            g_free(tmp);
+        }
+    }
+
+    return progress;
+}
+
+bool aio_dispatch(AioContext *ctx)
+{
+    bool progress;
+
+    progress = aio_bh_poll(ctx);
+    progress |= aio_dispatch_handlers(ctx, INVALID_HANDLE_VALUE);
+    progress |= timerlistgroup_run_timers(&ctx->tlg);
+    return progress;
+}
+
+bool aio_poll(AioContext *ctx, bool blocking)
+{
+    AioHandler *node;
+    HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
+    bool was_dispatching, progress, have_select_revents, first;
+    int count;
+    int timeout;
+
+    have_select_revents = aio_prepare(ctx);
+    if (have_select_revents) {
+        blocking = false;
+    }
+
+    was_dispatching = ctx->dispatching;
+    progress = false;
+
+    /* aio_notify can avoid the expensive event_notifier_set if
+     * everything (file descriptors, bottom halves, timers) will
+     * be re-evaluated before the next blocking poll().  This is
+     * already true when aio_poll is called with blocking == false;
+     * if blocking == true, it is only true after poll() returns.
+     *
+     * If we're in a nested event loop, ctx->dispatching might be true.
+     * In that case we can restore it just before returning, but we
+     * have to clear it now.
+     */
+    aio_set_dispatching(ctx, !blocking);
+
+    ctx->walking_handlers++;
+
+    /* fill fd sets */
+    count = 0;
+    QLIST_FOREACH(node, &ctx->aio_handlers, node) {
+        if (!node->deleted && node->io_notify) {
+            events[count++] = event_notifier_get_handle(node->e);
+        }
+    }
+
+    ctx->walking_handlers--;
+    first = true;
+
+    /* wait until next event */
+    while (count > 0) {
+        HANDLE event;
+        int ret;
+
+        timeout = blocking
+            ? qemu_timeout_ns_to_ms(aio_compute_timeout(ctx)) : 0;
+        ret = WaitForMultipleObjects(count, events, FALSE, timeout);
+        aio_set_dispatching(ctx, true);
+
+        if (first && aio_bh_poll(ctx)) {
+            progress = true;
+        }
+        first = false;
+
+        /* if we have any signaled events, dispatch event */
+        event = NULL;
+        if ((DWORD) (ret - WAIT_OBJECT_0) < count) {
+            event = events[ret - WAIT_OBJECT_0];
+            events[ret - WAIT_OBJECT_0] = events[--count];
+        } else if (!have_select_revents) {
+            break;
+        }
+
+        have_select_revents = false;
+        blocking = false;
+
+        progress |= aio_dispatch_handlers(ctx, event);
+    }
+
+    progress |= timerlistgroup_run_timers(&ctx->tlg);
+
+    aio_set_dispatching(ctx, was_dispatching);
+    return progress;
+}

async.c

@@ -0,0 +1,332 @@
+/*
+ * 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 "block/aio.h"
+#include "block/thread-pool.h"
+#include "qemu/main-loop.h"
+#include "qemu/atomic.h"
+
+/***********************************************************/
+/* bottom halves (can be seen as timers which expire ASAP) */
+
+struct QEMUBH {
+    AioContext *ctx;
+    QEMUBHFunc *cb;
+    void *opaque;
+    QEMUBH *next;
+    bool scheduled;
+    bool idle;
+    bool deleted;
+};
+
+QEMUBH *aio_bh_new(AioContext *ctx, QEMUBHFunc *cb, void *opaque)
+{
+    QEMUBH *bh;
+    bh = g_new(QEMUBH, 1);
+    *bh = (QEMUBH){
+        .ctx = ctx,
+        .cb = cb,
+        .opaque = opaque,
+    };
+    qemu_mutex_lock(&ctx->bh_lock);
+    bh->next = ctx->first_bh;
+    /* Make sure that the members are ready before putting bh into list */
+    smp_wmb();
+    ctx->first_bh = bh;
+    qemu_mutex_unlock(&ctx->bh_lock);
+    return bh;
+}
+
+/* Multiple occurrences of aio_bh_poll cannot be called concurrently */
+int aio_bh_poll(AioContext *ctx)
+{
+    QEMUBH *bh, **bhp, *next;
+    int ret;
+
+    ctx->walking_bh++;
+
+    ret = 0;
+    for (bh = ctx->first_bh; bh; bh = next) {
+        /* Make sure that fetching bh happens before accessing its members */
+        smp_read_barrier_depends();
+        next = bh->next;
+        /* The atomic_xchg is paired with the one in qemu_bh_schedule.  The
+         * implicit memory barrier ensures that the callback sees all writes
+         * done by the scheduling thread.  It also ensures that the scheduling
+         * thread sees the zero before bh->cb has run, and thus will call
+         * aio_notify again if necessary.
+         */
+        if (!bh->deleted && atomic_xchg(&bh->scheduled, 0)) {
+            if (!bh->idle)
+                ret = 1;
+            bh->idle = 0;
+            bh->cb(bh->opaque);
+        }
+    }
+
+    ctx->walking_bh--;
+
+    /* remove deleted bhs */
+    if (!ctx->walking_bh) {
+        qemu_mutex_lock(&ctx->bh_lock);
+        bhp = &ctx->first_bh;
+        while (*bhp) {
+            bh = *bhp;
+            if (bh->deleted) {
+                *bhp = bh->next;
+                g_free(bh);
+            } else {
+                bhp = &bh->next;
+            }
+        }
+        qemu_mutex_unlock(&ctx->bh_lock);
+    }
+
+    return ret;
+}
+
+void qemu_bh_schedule_idle(QEMUBH *bh)
+{
+    bh->idle = 1;
+    /* Make sure that idle & any writes needed by the callback are done
+     * before the locations are read in the aio_bh_poll.
+     */
+    atomic_mb_set(&bh->scheduled, 1);
+}
+
+void qemu_bh_schedule(QEMUBH *bh)
+{
+    AioContext *ctx;
+
+    ctx = bh->ctx;
+    bh->idle = 0;
+    /* The memory barrier implicit in atomic_xchg makes sure that:
+     * 1. idle & any writes needed by the callback are done before the
+     *    locations are read in the aio_bh_poll.
+     * 2. ctx is loaded before scheduled is set and the callback has a chance
+     *    to execute.
+     */
+    if (atomic_xchg(&bh->scheduled, 1) == 0) {
+        aio_notify(ctx);
+    }
+}
+
+
+/* This func is async.
+ */
+void qemu_bh_cancel(QEMUBH *bh)
+{
+    bh->scheduled = 0;
+}
+
+/* This func is async.The bottom half will do the delete action at the finial
+ * end.
+ */
+void qemu_bh_delete(QEMUBH *bh)
+{
+    bh->scheduled = 0;
+    bh->deleted = 1;
+}
+
+int64_t
+aio_compute_timeout(AioContext *ctx)
+{
+    int64_t deadline;
+    int timeout = -1;
+    QEMUBH *bh;
+
+    for (bh = ctx->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 = 10000000;
+            } else {
+                /* non-idle bottom halves will be executed
+                 * immediately */
+                return 0;
+            }
+        }
+    }
+
+    deadline = timerlistgroup_deadline_ns(&ctx->tlg);
+    if (deadline == 0) {
+        return 0;
+    } else {
+        return qemu_soonest_timeout(timeout, deadline);
+    }
+}
+
+static gboolean
+aio_ctx_prepare(GSource *source, gint    *timeout)
+{
+    AioContext *ctx = (AioContext *) source;
+
+    /* We assume there is no timeout already supplied */
+    *timeout = qemu_timeout_ns_to_ms(aio_compute_timeout(ctx));
+
+    if (aio_prepare(ctx)) {
+        *timeout = 0;
+    }
+
+    return *timeout == 0;
+}
+
+static gboolean
+aio_ctx_check(GSource *source)
+{
+    AioContext *ctx = (AioContext *) source;
+    QEMUBH *bh;
+
+    for (bh = ctx->first_bh; bh; bh = bh->next) {
+        if (!bh->deleted && bh->scheduled) {
+            return true;
+	}
+    }
+    return aio_pending(ctx) || (timerlistgroup_deadline_ns(&ctx->tlg) == 0);
+}
+
+static gboolean
+aio_ctx_dispatch(GSource     *source,
+                 GSourceFunc  callback,
+                 gpointer     user_data)
+{
+    AioContext *ctx = (AioContext *) source;
+
+    assert(callback == NULL);
+    aio_dispatch(ctx);
+    return true;
+}
+
+static void
+aio_ctx_finalize(GSource     *source)
+{
+    AioContext *ctx = (AioContext *) source;
+
+    thread_pool_free(ctx->thread_pool);
+    aio_set_event_notifier(ctx, &ctx->notifier, NULL);
+    event_notifier_cleanup(&ctx->notifier);
+    rfifolock_destroy(&ctx->lock);
+    qemu_mutex_destroy(&ctx->bh_lock);
+    g_array_free(ctx->pollfds, TRUE);
+    timerlistgroup_deinit(&ctx->tlg);
+}
+
+static GSourceFuncs aio_source_funcs = {
+    aio_ctx_prepare,
+    aio_ctx_check,
+    aio_ctx_dispatch,
+    aio_ctx_finalize
+};
+
+GSource *aio_get_g_source(AioContext *ctx)
+{
+    g_source_ref(&ctx->source);
+    return &ctx->source;
+}
+
+ThreadPool *aio_get_thread_pool(AioContext *ctx)
+{
+    if (!ctx->thread_pool) {
+        ctx->thread_pool = thread_pool_new(ctx);
+    }
+    return ctx->thread_pool;
+}
+
+void aio_set_dispatching(AioContext *ctx, bool dispatching)
+{
+    ctx->dispatching = dispatching;
+    if (!dispatching) {
+        /* Write ctx->dispatching before reading e.g. bh->scheduled.
+         * Optimization: this is only needed when we're entering the "unsafe"
+         * phase where other threads must call event_notifier_set.
+         */
+        smp_mb();
+    }
+}
+
+void aio_notify(AioContext *ctx)
+{
+    /* Write e.g. bh->scheduled before reading ctx->dispatching.  */
+    smp_mb();
+    if (!ctx->dispatching) {
+        event_notifier_set(&ctx->notifier);
+    }
+}
+
+static void aio_timerlist_notify(void *opaque)
+{
+    aio_notify(opaque);
+}
+
+static void aio_rfifolock_cb(void *opaque)
+{
+    /* Kick owner thread in case they are blocked in aio_poll() */
+    aio_notify(opaque);
+}
+
+AioContext *aio_context_new(Error **errp)
+{
+    int ret;
+    AioContext *ctx;
+    ctx = (AioContext *) g_source_new(&aio_source_funcs, sizeof(AioContext));
+    ret = event_notifier_init(&ctx->notifier, false);
+    if (ret < 0) {
+        g_source_destroy(&ctx->source);
+        error_setg_errno(errp, -ret, "Failed to initialize event notifier");
+        return NULL;
+    }
+    g_source_set_can_recurse(&ctx->source, true);
+    aio_set_event_notifier(ctx, &ctx->notifier,
+                           (EventNotifierHandler *)
+                           event_notifier_test_and_clear);
+    ctx->pollfds = g_array_new(FALSE, FALSE, sizeof(GPollFD));
+    ctx->thread_pool = NULL;
+    qemu_mutex_init(&ctx->bh_lock);
+    rfifolock_init(&ctx->lock, aio_rfifolock_cb, ctx);
+    timerlistgroup_init(&ctx->tlg, aio_timerlist_notify, ctx);
+
+    return ctx;
+}
+
+void aio_context_ref(AioContext *ctx)
+{
+    g_source_ref(&ctx->source);
+}
+
+void aio_context_unref(AioContext *ctx)
+{
+    g_source_unref(&ctx->source);
+}
+
+void aio_context_acquire(AioContext *ctx)
+{
+    rfifolock_lock(&ctx->lock);
+}
+
+void aio_context_release(AioContext *ctx)
+{
+    rfifolock_unlock(&ctx->lock);
+}

audio/Makefile.objs

@@ -5,9 +5,13 @@ 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-$(CONFIG_FMOD) += fmodaudio.o
+common-obj-$(CONFIG_ESD) += esdaudio.o
 common-obj-$(CONFIG_PA) += paaudio.o
+common-obj-$(CONFIG_WINWAVE) += winwaveaudio.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
 
+$(obj)/audio.o $(obj)/fmodaudio.o: QEMU_CFLAGS += $(FMOD_CFLAGS)
 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 "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;
@@ -202,7 +205,9 @@ static void alsa_poll_handler (void *opaque)
     }
 
     if (!(revents & hlp->mask)) {
-        trace_alsa_revents(revents);
+        if (conf.verbose) {
+            dolog ("revents = %d\n", revents);
+        }
         return;
     }
 
@@ -261,14 +266,31 @@ static int alsa_poll_helper (snd_pcm_t *handle, struct pollhlp *hlp, int mask)
 
     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);
+            }
+            g_free (pfds);
+            return -1;
+        }
     }
     hlp->pfds = pfds;
     hlp->count = count;
@@ -454,15 +476,14 @@ 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 +522,7 @@ 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 +654,7 @@ 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 +676,7 @@ 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);
     }
 
@@ -665,9 +686,10 @@ static int alsa_open (int in, struct alsa_params_req *req,
 
     *handlep = handle;
 
-    if (obtfmt != req->fmt ||
+    if (conf.verbose &&
+        (obtfmt != req->fmt ||
          obt->nchannels != req->nchannels ||
-         obt->freq != req->freq) {
+         obt->freq != req->freq)) {
         dolog ("Audio parameters for %s\n", typ);
         alsa_dump_info (req, obt, obtfmt);
     }
@@ -721,7 +743,9 @@ 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 +754,9 @@ 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 +767,9 @@ 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:
@@ -791,27 +819,25 @@ static void alsa_fini_out (HWVoiceOut *hw)
     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.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;
     }
 
@@ -832,7 +858,6 @@ static int alsa_init_out(HWVoiceOut *hw, struct audsettings *as,
     }
 
     alsa->handle = handle;
-    alsa->pollhlp.conf = conf;
     return 0;
 }
 
@@ -903,26 +928,25 @@ static int alsa_ctl_out (HWVoiceOut *hw, int cmd, ...)
     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.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 +967,6 @@ static int alsa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
     }
 
     alsa->handle = handle;
-    alsa->pollhlp.conf = conf;
     return 0;
 }
 
@@ -999,10 +1022,14 @@ 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 +1064,9 @@ 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 +1074,9 @@ 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:
@@ -1117,85 +1148,82 @@ static int alsa_ctl_in (HWVoiceIn *hw, int cmd, ...)
     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"
 
 #define AUDIO_CAP "audio"
 #include "audio_int.h"
 
+/* #define DEBUG_PLIVE */
 /* #define DEBUG_LIVE */
 /* #define DEBUG_OUT */
 /* #define DEBUG_CAPTURE */
@@ -68,6 +66,8 @@ static struct {
         int hertz;
         int64_t ticks;
     } period;
+    int plive;
+    int log_to_monitor;
     int try_poll_in;
     int try_poll_out;
 } conf = {
@@ -96,6 +96,8 @@ static struct {
     },
 
     .period = { .hertz = 100 },
+    .plive = 0,
+    .log_to_monitor = 0,
     .try_poll_in = 1,
     .try_poll_out = 1,
 };
@@ -329,11 +331,20 @@ 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(default_mon, "%s: ", cap);
+        }
 
-    vfprintf(stderr, fmt, ap);
+        monitor_vprintf(default_mon, fmt, ap);
+    }
+    else {
+        if (cap) {
+            fprintf (stderr, "%s: ", cap);
+        }
+
+        vfprintf (stderr, fmt, ap);
+    }
 }
 
 void AUD_log (const char *cap, const char *fmt, ...)
@@ -1113,7 +1124,7 @@ static int audio_is_timer_needed (void)
 static void audio_reset_timer (AudioState *s)
 {
     if (audio_is_timer_needed ()) {
-        timer_mod_anticipate_ns(s->ts,
+        timer_mod (s->ts,
             qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + conf.period.ticks);
     }
     else {
@@ -1132,6 +1143,8 @@ static void audio_timer (void *opaque)
  */
 int AUD_write (SWVoiceOut *sw, void *buf, int size)
 {
+    int bytes;
+
     if (!sw) {
         /* XXX: Consider options */
         return size;
@@ -1142,11 +1155,14 @@ 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 +1173,8 @@ 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)
@@ -1388,7 +1405,6 @@ 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 +1454,9 @@ 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 +1471,9 @@ 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 +1648,18 @@ 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 */ }
 };
 
@@ -1744,21 +1772,13 @@ static void audio_vm_change_state_handler (void *opaque, int running,
     audio_reset_timer (s);
 }
 
-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_out (hwo))) {
         SWVoiceCap *sc;
 
         if (hwo->enabled) {
@@ -1774,20 +1794,17 @@ 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) {
+    while ((hwi = audio_pcm_hw_find_any_in (hwi))) {
         if (hwi->enabled) {
             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;
     }
 }
 
@@ -1815,9 +1832,12 @@ 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);
+    if (!s->ts) {
+        hw_error("Could not create audio timer\n");
+    }
 
     audio_process_options ("AUDIO", audio_options);
 
@@ -1868,8 +1888,12 @@ 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 +1904,8 @@ 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);
@@ -1982,7 +2007,8 @@ 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;
@@ -2028,8 +2054,6 @@ void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque)
                     sw = sw1;
                 }
                 QLIST_REMOVE (cap, entries);
-                g_free (cap->hw.mix_buf);
-                g_free (cap->buf);
                 g_free (cap);
             }
             return;

audio/audio.h

@@ -21,10 +21,10 @@
  * 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 "config-host.h"
 #include "qemu/queue.h"
 
 typedef void (*audio_callback_fn) (void *opaque, int avail);
@@ -163,12 +163,4 @@ 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
 
@@ -157,13 +156,13 @@ struct audio_driver {
 };
 
 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);
@@ -207,11 +206,14 @@ 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 struct audio_driver winwave_audio_driver;
 extern const struct mixeng_volume nominal_volume;
 
 void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
@@ -258,4 +260,4 @@ 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"
 

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

@@ -262,7 +262,7 @@ static HW *glue (audio_pcm_hw_add_new_, TYPE) (struct audsettings *as)
 #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;
     }
 
@@ -398,6 +398,10 @@ SW *glue (AUD_open_, TYPE) (
     )
 {
     AudioState *s = &glob_audio_state;
+#ifdef DAC
+    int live = 0;
+    SW *old_sw = NULL;
+#endif
 
     if (audio_bug (AUDIO_FUNC, !card || !name || !callback_fn || !as)) {
         dolog ("card=%p name=%p callback_fn=%p as=%p\n",
@@ -422,6 +426,29 @@ 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 +481,20 @@ 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);

audio/audio_win_int.c

@@ -1,6 +1,5 @@
 /* public domain */
 
-#include "qemu/osdep.h"
 #include "qemu-common.h"
 
 #define AUDIO_CAP "win-int"

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"
@@ -32,248 +32,28 @@
 #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";
@@ -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");
@@ -530,29 +322,42 @@ 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",
@@ -561,18 +366,30 @@ static int coreaudio_init_out(HWVoiceOut *hw, struct audsettings *as,
     }
 
     /* 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;
@@ -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 +1,557 @@
+/*
+ * 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"
+
+#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;
+
+    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");
+        /* fall through */
+    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 = esd_play_stream (esdfmt, as->freq, conf.dac_host, NULL);
+    if (esd->fd < 0) {
+        qesd_logerr (errno, "esd_play_stream failed\n");
+        goto fail1;
+    }
+
+    if (audio_pt_init (&esd->pt, qesd_thread_out, esd, AUDIO_CAP, AUDIO_FUNC)) {
+        goto fail2;
+    }
+
+    return 0;
+
+ fail2:
+    if (close (esd->fd)) {
+        qesd_logerr (errno, "%s: close on esd socket(%d) failed\n",
+                     AUDIO_FUNC, esd->fd);
+    }
+    esd->fd = -1;
+
+ fail1:
+    g_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);
+
+    g_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);
+            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;
+
+    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 = esd_record_stream (esdfmt, as->freq, conf.adc_host, NULL);
+    if (esd->fd < 0) {
+        qesd_logerr (errno, "esd_record_stream failed\n");
+        goto fail1;
+    }
+
+    if (audio_pt_init (&esd->pt, qesd_thread_in, esd, AUDIO_CAP, AUDIO_FUNC)) {
+        goto fail2;
+    }
+
+    return 0;
+
+ fail2:
+    if (close (esd->fd)) {
+        qesd_logerr (errno, "%s: close on esd socket(%d) failed\n",
+                     AUDIO_FUNC, esd->fd);
+    }
+    esd->fd = -1;
+
+ fail1:
+    g_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);
+
+    g_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 +1,685 @@
+/*
+ * 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 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);
+    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 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);
+    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);
+    }
+    if (p2 && len2) {
+        hw->conv (hw->conv_buf, p2, len2);
+    }
+
+    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"
@@ -268,42 +265,11 @@ 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

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
 
@@ -49,4 +48,4 @@ 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/noaudio.c

@@ -21,9 +21,7 @@
  * 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/host-utils.h"
 #include "audio.h"
 #include "qemu/timer.h"
 
@@ -50,8 +48,8 @@ static int no_run_out (HWVoiceOut *hw, int live)
 
     now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
     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;
@@ -107,7 +105,7 @@ static int no_run_in (HWVoiceIn *hw)
         int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
         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);

audio/ossaudio.c

@@ -21,14 +21,15 @@
  * 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>
 #include <sys/soundcard.h>
 #include "qemu-common.h"
 #include "qemu/main-loop.h"
 #include "qemu/host-utils.h"
 #include "audio.h"
-#include "trace.h"
 
 #define AUDIO_CAP "oss"
 #include "audio_int.h"
@@ -37,16 +38,6 @@
 #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)
@@ -263,18 +272,18 @@ static int oss_get_version (int fd, int *version, const char *typ)
 #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 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) {
@@ -308,18 +317,20 @@ static int oss_open (int in, struct oss_params *req,
     }
 
 #ifdef USE_DSP_POLICY
-    if (conf->policy >= 0) {
+    if (conf.policy >= 0) {
         int version;
 
         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;
+                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);
+                                 conf.policy);
                     goto err;
                 }
                 setfragment = 0;
@@ -447,12 +458,19 @@ 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;
         }
 
@@ -492,8 +510,7 @@ static void oss_fini_out (HWVoiceOut *hw)
     }
 }
 
-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 +519,16 @@ 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.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 +555,7 @@ 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 +615,6 @@ static int oss_init_out(HWVoiceOut *hw, struct audsettings *as,
     }
 
     oss->fd = fd;
-    oss->conf = conf;
     return 0;
 }
 
@@ -619,8 +634,7 @@ 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 +676,7 @@ 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 +685,15 @@ 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.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 +727,6 @@ static int oss_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
     }
 
     oss->fd = fd;
-    oss->conf = conf;
     return 0;
 }
 
@@ -816,8 +828,7 @@ 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 +845,71 @@ 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);
+    if (access(conf.devpath_in, R_OK | W_OK) < 0 ||
+        access(conf.devpath_out, R_OK | W_OK) < 0) {
         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
     {
         .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

@@ -1,5 +1,4 @@
 /* public domain */
-#include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "audio.h"
 
@@ -9,19 +8,6 @@
 #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;
@@ -31,7 +17,6 @@ typedef struct {
     pa_stream *stream;
     void *pcm_buf;
     struct audio_pt pt;
-    paaudio *g;
 } PAVoiceOut;
 
 typedef struct {
@@ -45,10 +30,20 @@ typedef struct {
     struct audio_pt pt;
     const void *read_data;
     size_t read_index, read_length;
-    paaudio *g;
 } PAVoiceIn;
 
-static void qpa_audio_fini(void *opaque);
+typedef struct {
+    int samples;
+    char *server;
+    char *sink;
+    char *source;
+    pa_threaded_mainloop *mainloop;
+    pa_context *context;
+} paaudio;
+
+static paaudio glob_paaudio = {
+    .samples = 4096,
+};
 
 static void GCC_FMT_ATTR (2, 3) qpa_logerr (int err, const char *fmt, ...)
 {
@@ -111,7 +106,7 @@ static inline int PA_STREAM_IS_GOOD(pa_stream_state_t x)
 
 static int qpa_simple_read (PAVoiceIn *p, void *data, size_t length, int *rerror)
 {
-    paaudio *g = p->g;
+    paaudio *g = &glob_paaudio;
 
     pa_threaded_mainloop_lock (g->mainloop);
 
@@ -165,7 +160,7 @@ unlock_and_fail:
 
 static int qpa_simple_write (PAVoiceOut *p, const void *data, size_t length, int *rerror)
 {
-    paaudio *g = p->g;
+    paaudio *g = &glob_paaudio;
 
     pa_threaded_mainloop_lock (g->mainloop);
 
@@ -227,7 +222,7 @@ static void *qpa_thread_out (void *arg)
             }
         }
 
-        decr = to_mix = audio_MIN (pa->live, pa->g->conf.samples >> 2);
+        decr = to_mix = audio_MIN (pa->live, glob_paaudio.samples >> 2);
         rpos = pa->rpos;
 
         if (audio_pt_unlock (&pa->pt, AUDIO_FUNC)) {
@@ -319,7 +314,7 @@ static void *qpa_thread_in (void *arg)
             }
         }
 
-        incr = to_grab = audio_MIN (pa->dead, pa->g->conf.samples >> 2);
+        incr = to_grab = audio_MIN (pa->dead, glob_paaudio.samples >> 2);
         wpos = pa->wpos;
 
         if (audio_pt_unlock (&pa->pt, AUDIO_FUNC)) {
@@ -435,7 +430,7 @@ 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;
+    paaudio *g = &glob_paaudio;
 
     switch (pa_context_get_state(c)) {
     case PA_CONTEXT_READY:
@@ -454,7 +449,7 @@ static void context_state_cb (pa_context *c, void *userdata)
 
 static void stream_state_cb (pa_stream *s, void * userdata)
 {
-    paaudio *g = userdata;
+    paaudio *g = &glob_paaudio;
 
     switch (pa_stream_get_state (s)) {
 
@@ -472,21 +467,23 @@ static void stream_state_cb (pa_stream *s, void * userdata)
 
 static void stream_request_cb (pa_stream *s, size_t length, void *userdata)
 {
-    paaudio *g = userdata;
+    paaudio *g = &glob_paaudio;
 
     pa_threaded_mainloop_signal (g->mainloop, 0);
 }
 
 static pa_stream *qpa_simple_new (
-        paaudio *g,
+        const char *server,
         const char *name,
         pa_stream_direction_t dir,
         const char *dev,
+        const char *stream_name,
         const pa_sample_spec *ss,
         const pa_channel_map *map,
         const pa_buffer_attr *attr,
         int *rerror)
 {
+    paaudio *g = &glob_paaudio;
     int r;
     pa_stream *stream;
 
@@ -537,15 +534,13 @@ fail:
     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;
+    static pa_buffer_attr ba;
     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;
@@ -563,10 +558,11 @@ static int qpa_init_out(HWVoiceOut *hw, struct audsettings *as,
     obt_as.fmt = pa_to_audfmt (ss.format, &obt_as.endianness);
 
     pa->stream = qpa_simple_new (
-        g,
+        glob_paaudio.server,
         "qemu",
         PA_STREAM_PLAYBACK,
-        g->conf.sink,
+        glob_paaudio.sink,
+        "pcm.playback",
         &ss,
         NULL,                   /* channel map */
         &ba,                    /* buffering attributes */
@@ -578,7 +574,7 @@ static int qpa_init_out(HWVoiceOut *hw, struct audsettings *as,
     }
 
     audio_pcm_init_info (&hw->info, &obt_as);
-    hw->samples = g->conf.samples;
+    hw->samples = glob_paaudio.samples;
     pa->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
     pa->rpos = hw->rpos;
     if (!pa->pcm_buf) {
@@ -605,13 +601,12 @@ static int qpa_init_out(HWVoiceOut *hw, struct audsettings *as,
     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;
@@ -620,10 +615,11 @@ 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,
+        glob_paaudio.server,
         "qemu",
         PA_STREAM_RECORD,
-        g->conf.source,
+        glob_paaudio.source,
+        "pcm.capture",
         &ss,
         NULL,                   /* channel map */
         NULL,                   /* buffering attributes */
@@ -635,7 +631,7 @@ static int qpa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
     }
 
     audio_pcm_init_info (&hw->info, &obt_as);
-    hw->samples = g->conf.samples;
+    hw->samples = glob_paaudio.samples;
     pa->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
     pa->wpos = hw->wpos;
     if (!pa->pcm_buf) {
@@ -707,7 +703,7 @@ static int qpa_ctl_out (HWVoiceOut *hw, int cmd, ...)
     PAVoiceOut *pa = (PAVoiceOut *) hw;
     pa_operation *op;
     pa_cvolume v;
-    paaudio *g = pa->g;
+    paaudio *g = &glob_paaudio;
 
 #ifdef PA_CHECK_VERSION    /* macro is present in 0.9.16+ */
     pa_cvolume_init (&v);  /* function is present in 0.9.13+ */
@@ -759,7 +755,7 @@ static int qpa_ctl_in (HWVoiceIn *hw, int cmd, ...)
     PAVoiceIn *pa = (PAVoiceIn *) hw;
     pa_operation *op;
     pa_cvolume v;
-    paaudio *g = pa->g;
+    paaudio *g = &glob_paaudio;
 
 #ifdef PA_CHECK_VERSION
     pa_cvolume_init (&v);
@@ -781,22 +777,23 @@ static int qpa_ctl_in (HWVoiceIn *hw, int cmd, ...)
 
             pa_threaded_mainloop_lock (g->mainloop);
 
-            op = pa_context_set_source_output_volume (g->context,
-                pa_stream_get_index (pa->stream),
+            /* FIXME: use the upcoming "set_source_output_{volume,mute}" */
+            op = pa_context_set_source_volume_by_index (g->context,
+                pa_stream_get_device_index (pa->stream),
                 &v, NULL, NULL);
             if (!op) {
                 qpa_logerr (pa_context_errno (g->context),
-                            "set_source_output_volume() failed\n");
+                            "set_source_volume() failed\n");
             } else {
                 pa_operation_unref(op);
             }
 
-            op = pa_context_set_source_output_mute (g->context,
+            op = pa_context_set_source_mute_by_index (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");
+                            "set_source_mute() failed\n");
             } else {
                 pa_operation_unref (op);
             }
@@ -808,31 +805,23 @@ static int qpa_ctl_in (HWVoiceIn *hw, int cmd, ...)
 }
 
 /* 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;
+    paaudio *g = &glob_paaudio;
 
     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);
+    g->context = pa_context_new (pa_threaded_mainloop_get_api (g->mainloop), glob_paaudio.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) {
+    if (pa_context_connect (g->context, glob_paaudio.server, 0, NULL) < 0) {
         qpa_logerr (pa_context_errno (g->context),
                     "pa_context_connect() failed\n");
         goto fail;
@@ -865,13 +854,12 @@ static void *qpa_audio_init (void)
 
     pa_threaded_mainloop_unlock (g->mainloop);
 
-    return g;
+    return &glob_paaudio;
 
 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;
 }
 
@@ -886,38 +874,39 @@ static void qpa_audio_fini (void *opaque)
     if (g->context) {
         pa_context_disconnect (g->context);
         pa_context_unref (g->context);
+        g->context = NULL;
     }
 
     if (g->mainloop) {
         pa_threaded_mainloop_free (g->mainloop);
     }
 
-    g_free(g);
+    g->mainloop = NULL;
 }
 
 struct audio_option qpa_options[] = {
     {
         .name  = "SAMPLES",
         .tag   = AUD_OPT_INT,
-        .valp  = &glob_conf.samples,
+        .valp  = &glob_paaudio.samples,
         .descr = "buffer size in samples"
     },
     {
         .name  = "SERVER",
         .tag   = AUD_OPT_STR,
-        .valp  = &glob_conf.server,
+        .valp  = &glob_paaudio.server,
         .descr = "server address"
     },
     {
         .name  = "SINK",
         .tag   = AUD_OPT_STR,
-        .valp  = &glob_conf.sink,
+        .valp  = &glob_paaudio.sink,
         .descr = "sink device name"
     },
     {
         .name  = "SOURCE",
         .tag   = AUD_OPT_STR,
-        .valp  = &glob_conf.source,
+        .valp  = &glob_paaudio.source,
         .descr = "source device name"
     },
     { /* End of list */ }

audio/rate_template.h

@@ -71,12 +71,6 @@ void NAME (void *opaque, struct st_sample *ibuf, struct st_sample *obuf,
         while (rate->ipos <= (rate->opos >> 32)) {
             ilast = *ibuf++;
             rate->ipos++;
-
-            /* if ipos overflow, there is  a infinite loop */
-            if (rate->ipos == 0xffffffff) {
-                rate->ipos = 1;
-                rate->opos = rate->opos & 0xffffffff;
-            }
             /* See if we finished the input buffer yet */
             if (ibuf >= iend) {
                 goto the_end;

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"
@@ -38,14 +37,10 @@
 #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;
 } SDLVoiceOut;
 
@@ -57,12 +52,9 @@ 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 +71,31 @@ 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 +104,6 @@ static int sdl_wait (SDLAudioState *s, const char *forfn)
     }
     return 0;
 }
-#endif
 
 static int sdl_unlock_and_post (SDLAudioState *s, const char *forfn)
 {
@@ -267,7 +244,6 @@ static void sdl_callback (void *opaque, Uint8 *buf, int len)
         int to_mix, decr;
 
         /* dolog ("in callback samples=%d\n", samples); */
-#if USE_SEMAPHORE
         sdl_wait (s, "sdl_callback");
         if (s->exit) {
             return;
@@ -286,11 +262,6 @@ static void sdl_callback (void *opaque, Uint8 *buf, int len)
         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);
@@ -301,11 +272,7 @@ static void sdl_callback (void *opaque, Uint8 *buf, int len)
 
             /* 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;
         }
@@ -313,21 +280,12 @@ static void sdl_callback (void *opaque, Uint8 *buf, int len)
         sdl->live -= decr;
         sdl->decr += decr;
 
-#if USE_SEMAPHORE
     again:
         if (sdl_unlock (s, "sdl_callback")) {
             return;
         }
-#endif
     }
     /* 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);
-    }
-#endif
 }
 
 static int sdl_write_out (SWVoiceOut *sw, void *buf, int len)
@@ -355,12 +313,8 @@ static int sdl_run_out (HWVoiceOut *hw, int 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
 
     if (sdl->live > 0) {
         sdl_unlock_and_post (s, "sdl_run_out");
@@ -378,8 +332,7 @@ 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;
@@ -439,17 +392,12 @@ 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 +412,7 @@ static void *sdl_audio_init (void)
         SDL_QuitSubSystem (SDL_INIT_AUDIO);
         return NULL;
     }
-#endif
 
-    s->driver_created = true;
     return s;
 }
 
@@ -474,12 +420,9 @@ 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

@@ -17,10 +17,7 @@
  * 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"
 
@@ -105,11 +102,11 @@ static int rate_get_samples (struct audio_pcm_info *info, SpiceRateCtl *rate)
 
     now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
     ticks = now - rate->start_ticks;
-    bytes = muldiv64(ticks, info->bytes_per_second, NANOSECONDS_PER_SECOND);
+    bytes = muldiv64 (ticks, info->bytes_per_second, get_ticks_per_sec ());
     samples = (bytes - rate->bytes_sent) >> info->shift;
     if (samples < 0 || samples > 65536) {
         error_report("Resetting rate control (%" PRId64 " samples)", samples);
-        rate_start(rate);
+        rate_start (rate);
         samples = 0;
     }
     rate->bytes_sent += samples << info->shift;
@@ -118,8 +115,7 @@ static int rate_get_samples (struct audio_pcm_info *info, SpiceRateCtl *rate)
 
 /* playback */
 
-static int line_out_init(HWVoiceOut *hw, struct audsettings *as,
-                         void *drv_opaque)
+static int line_out_init (HWVoiceOut *hw, struct audsettings *as)
 {
     SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
     struct audsettings settings;
@@ -247,7 +243,7 @@ static int line_out_ctl (HWVoiceOut *hw, int cmd, ...)
 
 /* record */
 
-static int line_in_init(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
+static int line_in_init (HWVoiceIn *hw, struct audsettings *as)
 {
     SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
     struct audsettings settings;

audio/trace-events

@@ -1,17 +0,0 @@
-# See docs/devel/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=0x%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 = 0x%x"
-oss_invalid_available_size(int size, int bufsize) "Invalid available size, size=%d bufsize=%d"

audio/wavaudio.c

@@ -21,8 +21,7 @@
  * 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 "hw/hw.h"
 #include "qemu/timer.h"
 #include "audio.h"
 
@@ -37,10 +36,15 @@ typedef struct WAVVoiceOut {
     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)
 {
@@ -51,7 +55,7 @@ static int wav_run_out (HWVoiceOut *hw, int live)
     int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
     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;
@@ -101,8 +105,7 @@ 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 +115,9 @@ 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) {
@@ -151,10 +155,10 @@ 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 = fopen (conf.wav_path, "wb");
     if (!wav->f) {
         dolog ("Failed to open wave file `%s'\nReason: %s\n",
-               conf->wav_path, strerror (errno));
+               conf.wav_path, strerror (errno));
         g_free (wav->pcm_buf);
         wav->pcm_buf = NULL;
         return -1;
@@ -222,49 +226,40 @@ 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

@@ -1,7 +1,5 @@
-#include "qemu/osdep.h"
 #include "hw/hw.h"
 #include "monitor/monitor.h"
-#include "qemu/error-report.h"
 #include "audio.h"
 
 typedef struct {
@@ -88,7 +86,6 @@ 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)

audio/winwaveaudio.c

@@ -0,0 +1,717 @@
+/* public domain */
+
+#include "qemu-common.h"
+#include "sysemu/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 lock 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:
+    g_free (wave->pcm_buf);
+ err3:
+    g_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;
+    }
+
+    g_free (wave->pcm_buf);
+    wave->pcm_buf = NULL;
+
+    g_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;
+            }
+            wave->paused = 0;
+        }
+        return 0;
+
+    case VOICE_DISABLE:
+        if (!wave->paused) {
+            mr = waveOutReset (wave->hwo);
+            if (mr != MMSYSERR_NOERROR) {
+                winwave_logerr (mr, "waveOutReset");
+            }
+            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:
+    g_free (wave->pcm_buf);
+ err3:
+    g_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;
+    }
+
+    g_free (wave->pcm_buf);
+    wave->pcm_buf = NULL;
+
+    g_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);
+
+        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 +1,11 @@
 common-obj-y += rng.o rng-egd.o
 common-obj-$(CONFIG_POSIX) += rng-random.o
 
+common-obj-y += msmouse.o testdev.o
+common-obj-$(CONFIG_BRLAPI) += baum.o
+baum.o-cflags := $(SDL_CFLAGS)
+
 common-obj-$(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/baum.c

@@ -0,0 +1,635 @@
+/*
+ * QEMU Baum Braille Device
+ *
+ * Copyright (c) 2008 Samuel Thibault
+ *
+ * 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 "sysemu/char.h"
+#include "qemu/timer.h"
+#include "hw/usb.h"
+#include <brlapi.h>
+#include <brlapi_constants.h>
+#include <brlapi_keycodes.h>
+#ifdef CONFIG_SDL
+#include <SDL_syswm.h>
+#endif
+
+#if 0
+#define DPRINTF(fmt, ...) \
+        printf(fmt, ## __VA_ARGS__)
+#else
+#define DPRINTF(fmt, ...)
+#endif
+
+#define ESC 0x1B
+
+#define BAUM_REQ_DisplayData		0x01
+#define BAUM_REQ_GetVersionNumber	0x05
+#define BAUM_REQ_GetKeys		0x08
+#define BAUM_REQ_SetMode		0x12
+#define BAUM_REQ_SetProtocol		0x15
+#define BAUM_REQ_GetDeviceIdentity	0x84
+#define BAUM_REQ_GetSerialNumber	0x8A
+
+#define BAUM_RSP_CellCount		0x01
+#define BAUM_RSP_VersionNumber		0x05
+#define BAUM_RSP_ModeSetting		0x11
+#define BAUM_RSP_CommunicationChannel	0x16
+#define BAUM_RSP_PowerdownSignal	0x17
+#define BAUM_RSP_HorizontalSensors	0x20
+#define BAUM_RSP_VerticalSensors	0x21
+#define BAUM_RSP_RoutingKeys		0x22
+#define BAUM_RSP_Switches		0x23
+#define BAUM_RSP_TopKeys		0x24
+#define BAUM_RSP_HorizontalSensor	0x25
+#define BAUM_RSP_VerticalSensor		0x26
+#define BAUM_RSP_RoutingKey		0x27
+#define BAUM_RSP_FrontKeys6		0x28
+#define BAUM_RSP_BackKeys6		0x29
+#define BAUM_RSP_CommandKeys		0x2B
+#define BAUM_RSP_FrontKeys10		0x2C
+#define BAUM_RSP_BackKeys10		0x2D
+#define BAUM_RSP_EntryKeys		0x33
+#define BAUM_RSP_JoyStick		0x34
+#define BAUM_RSP_ErrorCode		0x40
+#define BAUM_RSP_InfoBlock		0x42
+#define BAUM_RSP_DeviceIdentity		0x84
+#define BAUM_RSP_SerialNumber		0x8A
+#define BAUM_RSP_BluetoothName		0x8C
+
+#define BAUM_TL1 0x01
+#define BAUM_TL2 0x02
+#define BAUM_TL3 0x04
+#define BAUM_TR1 0x08
+#define BAUM_TR2 0x10
+#define BAUM_TR3 0x20
+
+#define BUF_SIZE 256
+
+typedef struct {
+    CharDriverState *chr;
+
+    brlapi_handle_t *brlapi;
+    int brlapi_fd;
+    unsigned int x, y;
+
+    uint8_t in_buf[BUF_SIZE];
+    uint8_t in_buf_used;
+    uint8_t out_buf[BUF_SIZE];
+    uint8_t out_buf_used, out_buf_ptr;
+
+    QEMUTimer *cellCount_timer;
+} BaumDriverState;
+
+/* Let's assume NABCC by default */
+static const uint8_t nabcc_translation[256] = {
+    [0] = ' ',
+#ifndef BRLAPI_DOTS
+#define BRLAPI_DOTS(d1,d2,d3,d4,d5,d6,d7,d8) \
+    ((d1?BRLAPI_DOT1:0)|\
+     (d2?BRLAPI_DOT2:0)|\
+     (d3?BRLAPI_DOT3:0)|\
+     (d4?BRLAPI_DOT4:0)|\
+     (d5?BRLAPI_DOT5:0)|\
+     (d6?BRLAPI_DOT6:0)|\
+     (d7?BRLAPI_DOT7:0)|\
+     (d8?BRLAPI_DOT8:0))
+#endif
+    [BRLAPI_DOTS(1,0,0,0,0,0,0,0)] = 'a',
+    [BRLAPI_DOTS(1,1,0,0,0,0,0,0)] = 'b',
+    [BRLAPI_DOTS(1,0,0,1,0,0,0,0)] = 'c',
+    [BRLAPI_DOTS(1,0,0,1,1,0,0,0)] = 'd',
+    [BRLAPI_DOTS(1,0,0,0,1,0,0,0)] = 'e',
+    [BRLAPI_DOTS(1,1,0,1,0,0,0,0)] = 'f',
+    [BRLAPI_DOTS(1,1,0,1,1,0,0,0)] = 'g',
+    [BRLAPI_DOTS(1,1,0,0,1,0,0,0)] = 'h',
+    [BRLAPI_DOTS(0,1,0,1,0,0,0,0)] = 'i',
+    [BRLAPI_DOTS(0,1,0,1,1,0,0,0)] = 'j',
+    [BRLAPI_DOTS(1,0,1,0,0,0,0,0)] = 'k',
+    [BRLAPI_DOTS(1,1,1,0,0,0,0,0)] = 'l',
+    [BRLAPI_DOTS(1,0,1,1,0,0,0,0)] = 'm',
+    [BRLAPI_DOTS(1,0,1,1,1,0,0,0)] = 'n',
+    [BRLAPI_DOTS(1,0,1,0,1,0,0,0)] = 'o',
+    [BRLAPI_DOTS(1,1,1,1,0,0,0,0)] = 'p',
+    [BRLAPI_DOTS(1,1,1,1,1,0,0,0)] = 'q',
+    [BRLAPI_DOTS(1,1,1,0,1,0,0,0)] = 'r',
+    [BRLAPI_DOTS(0,1,1,1,0,0,0,0)] = 's',
+    [BRLAPI_DOTS(0,1,1,1,1,0,0,0)] = 't',
+    [BRLAPI_DOTS(1,0,1,0,0,1,0,0)] = 'u',
+    [BRLAPI_DOTS(1,1,1,0,0,1,0,0)] = 'v',
+    [BRLAPI_DOTS(0,1,0,1,1,1,0,0)] = 'w',
+    [BRLAPI_DOTS(1,0,1,1,0,1,0,0)] = 'x',
+    [BRLAPI_DOTS(1,0,1,1,1,1,0,0)] = 'y',
+    [BRLAPI_DOTS(1,0,1,0,1,1,0,0)] = 'z',
+
+    [BRLAPI_DOTS(1,0,0,0,0,0,1,0)] = 'A',
+    [BRLAPI_DOTS(1,1,0,0,0,0,1,0)] = 'B',
+    [BRLAPI_DOTS(1,0,0,1,0,0,1,0)] = 'C',
+    [BRLAPI_DOTS(1,0,0,1,1,0,1,0)] = 'D',
+    [BRLAPI_DOTS(1,0,0,0,1,0,1,0)] = 'E',
+    [BRLAPI_DOTS(1,1,0,1,0,0,1,0)] = 'F',
+    [BRLAPI_DOTS(1,1,0,1,1,0,1,0)] = 'G',
+    [BRLAPI_DOTS(1,1,0,0,1,0,1,0)] = 'H',
+    [BRLAPI_DOTS(0,1,0,1,0,0,1,0)] = 'I',
+    [BRLAPI_DOTS(0,1,0,1,1,0,1,0)] = 'J',
+    [BRLAPI_DOTS(1,0,1,0,0,0,1,0)] = 'K',
+    [BRLAPI_DOTS(1,1,1,0,0,0,1,0)] = 'L',
+    [BRLAPI_DOTS(1,0,1,1,0,0,1,0)] = 'M',
+    [BRLAPI_DOTS(1,0,1,1,1,0,1,0)] = 'N',
+    [BRLAPI_DOTS(1,0,1,0,1,0,1,0)] = 'O',
+    [BRLAPI_DOTS(1,1,1,1,0,0,1,0)] = 'P',
+    [BRLAPI_DOTS(1,1,1,1,1,0,1,0)] = 'Q',
+    [BRLAPI_DOTS(1,1,1,0,1,0,1,0)] = 'R',
+    [BRLAPI_DOTS(0,1,1,1,0,0,1,0)] = 'S',
+    [BRLAPI_DOTS(0,1,1,1,1,0,1,0)] = 'T',
+    [BRLAPI_DOTS(1,0,1,0,0,1,1,0)] = 'U',
+    [BRLAPI_DOTS(1,1,1,0,0,1,1,0)] = 'V',
+    [BRLAPI_DOTS(0,1,0,1,1,1,1,0)] = 'W',
+    [BRLAPI_DOTS(1,0,1,1,0,1,1,0)] = 'X',
+    [BRLAPI_DOTS(1,0,1,1,1,1,1,0)] = 'Y',
+    [BRLAPI_DOTS(1,0,1,0,1,1,1,0)] = 'Z',
+
+    [BRLAPI_DOTS(0,0,1,0,1,1,0,0)] = '0',
+    [BRLAPI_DOTS(0,1,0,0,0,0,0,0)] = '1',
+    [BRLAPI_DOTS(0,1,1,0,0,0,0,0)] = '2',
+    [BRLAPI_DOTS(0,1,0,0,1,0,0,0)] = '3',
+    [BRLAPI_DOTS(0,1,0,0,1,1,0,0)] = '4',
+    [BRLAPI_DOTS(0,1,0,0,0,1,0,0)] = '5',
+    [BRLAPI_DOTS(0,1,1,0,1,0,0,0)] = '6',
+    [BRLAPI_DOTS(0,1,1,0,1,1,0,0)] = '7',
+    [BRLAPI_DOTS(0,1,1,0,0,1,0,0)] = '8',
+    [BRLAPI_DOTS(0,0,1,0,1,0,0,0)] = '9',
+
+    [BRLAPI_DOTS(0,0,0,1,0,1,0,0)] = '.',
+    [BRLAPI_DOTS(0,0,1,1,0,1,0,0)] = '+',
+    [BRLAPI_DOTS(0,0,1,0,0,1,0,0)] = '-',
+    [BRLAPI_DOTS(1,0,0,0,0,1,0,0)] = '*',
+    [BRLAPI_DOTS(0,0,1,1,0,0,0,0)] = '/',
+    [BRLAPI_DOTS(1,1,1,0,1,1,0,0)] = '(',
+    [BRLAPI_DOTS(0,1,1,1,1,1,0,0)] = ')',
+
+    [BRLAPI_DOTS(1,1,1,1,0,1,0,0)] = '&',
+    [BRLAPI_DOTS(0,0,1,1,1,1,0,0)] = '#',
+
+    [BRLAPI_DOTS(0,0,0,0,0,1,0,0)] = ',',
+    [BRLAPI_DOTS(0,0,0,0,1,1,0,0)] = ';',
+    [BRLAPI_DOTS(1,0,0,0,1,1,0,0)] = ':',
+    [BRLAPI_DOTS(0,1,1,1,0,1,0,0)] = '!',
+    [BRLAPI_DOTS(1,0,0,1,1,1,0,0)] = '?',
+    [BRLAPI_DOTS(0,0,0,0,1,0,0,0)] = '"',
+    [BRLAPI_DOTS(0,0,1,0,0,0,0,0)] ='\'',
+    [BRLAPI_DOTS(0,0,0,1,0,0,0,0)] = '`',
+    [BRLAPI_DOTS(0,0,0,1,1,0,1,0)] = '^',
+    [BRLAPI_DOTS(0,0,0,1,1,0,0,0)] = '~',
+    [BRLAPI_DOTS(0,1,0,1,0,1,1,0)] = '[',
+    [BRLAPI_DOTS(1,1,0,1,1,1,1,0)] = ']',
+    [BRLAPI_DOTS(0,1,0,1,0,1,0,0)] = '{',
+    [BRLAPI_DOTS(1,1,0,1,1,1,0,0)] = '}',
+    [BRLAPI_DOTS(1,1,1,1,1,1,0,0)] = '=',
+    [BRLAPI_DOTS(1,1,0,0,0,1,0,0)] = '<',
+    [BRLAPI_DOTS(0,0,1,1,1,0,0,0)] = '>',
+    [BRLAPI_DOTS(1,1,0,1,0,1,0,0)] = '$',
+    [BRLAPI_DOTS(1,0,0,1,0,1,0,0)] = '%',
+    [BRLAPI_DOTS(0,0,0,1,0,0,1,0)] = '@',
+    [BRLAPI_DOTS(1,1,0,0,1,1,0,0)] = '|',
+    [BRLAPI_DOTS(1,1,0,0,1,1,1,0)] ='\\',
+    [BRLAPI_DOTS(0,0,0,1,1,1,0,0)] = '_',
+};
+
+/* The serial port can receive more of our data */
+static void baum_accept_input(struct CharDriverState *chr)
+{
+    BaumDriverState *baum = chr->opaque;
+    int room, first;
+
+    if (!baum->out_buf_used)
+        return;
+    room = qemu_chr_be_can_write(chr);
+    if (!room)
+        return;
+    if (room > baum->out_buf_used)
+        room = baum->out_buf_used;
+
+    first = BUF_SIZE - baum->out_buf_ptr;
+    if (room > first) {
+        qemu_chr_be_write(chr, baum->out_buf + baum->out_buf_ptr, first);
+        baum->out_buf_ptr = 0;
+        baum->out_buf_used -= first;
+        room -= first;
+    }
+    qemu_chr_be_write(chr, baum->out_buf + baum->out_buf_ptr, room);
+    baum->out_buf_ptr += room;
+    baum->out_buf_used -= room;
+}
+
+/* We want to send a packet */
+static void baum_write_packet(BaumDriverState *baum, const uint8_t *buf, int len)
+{
+    uint8_t io_buf[1 + 2 * len], *cur = io_buf;
+    int room;
+    *cur++ = ESC;
+    while (len--)
+        if ((*cur++ = *buf++) == ESC)
+            *cur++ = ESC;
+    room = qemu_chr_be_can_write(baum->chr);
+    len = cur - io_buf;
+    if (len <= room) {
+        /* Fits */
+        qemu_chr_be_write(baum->chr, io_buf, len);
+    } else {
+        int first;
+        uint8_t out;
+        /* Can't fit all, send what can be, and store the rest. */
+        qemu_chr_be_write(baum->chr, io_buf, room);
+        len -= room;
+        cur = io_buf + room;
+        if (len > BUF_SIZE - baum->out_buf_used) {
+            /* Can't even store it, drop the previous data... */
+            assert(len <= BUF_SIZE);
+            baum->out_buf_used = 0;
+            baum->out_buf_ptr = 0;
+        }
+        out = baum->out_buf_ptr;
+        baum->out_buf_used += len;
+        first = BUF_SIZE - baum->out_buf_ptr;
+        if (len > first) {
+            memcpy(baum->out_buf + out, cur, first);
+            out = 0;
+            len -= first;
+            cur += first;
+        }
+        memcpy(baum->out_buf + out, cur, len);
+    }
+}
+
+/* Called when the other end seems to have a wrong idea of our display size */
+static void baum_cellCount_timer_cb(void *opaque)
+{
+    BaumDriverState *baum = opaque;
+    uint8_t cell_count[] = { BAUM_RSP_CellCount, baum->x * baum->y };
+    DPRINTF("Timeout waiting for DisplayData, sending cell count\n");
+    baum_write_packet(baum, cell_count, sizeof(cell_count));
+}
+
+/* Try to interpret a whole incoming packet */
+static int baum_eat_packet(BaumDriverState *baum, const uint8_t *buf, int len)
+{
+    const uint8_t *cur = buf;
+    uint8_t req = 0;
+
+    if (!len--)
+        return 0;
+    if (*cur++ != ESC) {
+        while (*cur != ESC) {
+            if (!len--)
+                return 0;
+            cur++;
+        }
+        DPRINTF("Dropped %d bytes!\n", cur - buf);
+    }
+
+#define EAT(c) do {\
+    if (!len--) \
+        return 0; \
+    if ((c = *cur++) == ESC) { \
+        if (!len--) \
+            return 0; \
+        if (*cur++ != ESC) { \
+            DPRINTF("Broken packet %#2x, tossing\n", req); \
+            if (timer_pending(baum->cellCount_timer)) {    \
+                timer_del(baum->cellCount_timer);     \
+                baum_cellCount_timer_cb(baum);             \
+            } \
+            return (cur - 2 - buf); \
+        } \
+    } \
+} while (0)
+
+    EAT(req);
+    switch (req) {
+    case BAUM_REQ_DisplayData:
+    {
+        uint8_t cells[baum->x * baum->y], c;
+        uint8_t text[baum->x * baum->y];
+        uint8_t zero[baum->x * baum->y];
+        int cursor = BRLAPI_CURSOR_OFF;
+        int i;
+
+        /* Allow 100ms to complete the DisplayData packet */
+        timer_mod(baum->cellCount_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
+                       get_ticks_per_sec() / 10);
+        for (i = 0; i < baum->x * baum->y ; i++) {
+            EAT(c);
+            cells[i] = c;
+            if ((c & (BRLAPI_DOT7|BRLAPI_DOT8))
+                    == (BRLAPI_DOT7|BRLAPI_DOT8)) {
+                cursor = i + 1;
+                c &= ~(BRLAPI_DOT7|BRLAPI_DOT8);
+            }
+            if (!(c = nabcc_translation[c]))
+                c = '?';
+            text[i] = c;
+        }
+        timer_del(baum->cellCount_timer);
+
+        memset(zero, 0, sizeof(zero));
+
+        brlapi_writeArguments_t wa = {
+            .displayNumber = BRLAPI_DISPLAY_DEFAULT,
+            .regionBegin = 1,
+            .regionSize = baum->x * baum->y,
+            .text = (char *)text,
+            .textSize = baum->x * baum->y,
+            .andMask = zero,
+            .orMask = cells,
+            .cursor = cursor,
+            .charset = (char *)"ISO-8859-1",
+        };
+
+        if (brlapi__write(baum->brlapi, &wa) == -1)
+            brlapi_perror("baum brlapi_write");
+        break;
+    }
+    case BAUM_REQ_SetMode:
+    {
+        uint8_t mode, setting;
+        DPRINTF("SetMode\n");
+        EAT(mode);
+        EAT(setting);
+        /* ignore */
+        break;
+    }
+    case BAUM_REQ_SetProtocol:
+    {
+        uint8_t protocol;
+        DPRINTF("SetProtocol\n");
+        EAT(protocol);
+        /* ignore */
+        break;
+    }
+    case BAUM_REQ_GetDeviceIdentity:
+    {
+        uint8_t identity[17] = { BAUM_RSP_DeviceIdentity,
+            'B','a','u','m',' ','V','a','r','i','o' };
+        DPRINTF("GetDeviceIdentity\n");
+        identity[11] = '0' + baum->x / 10;
+        identity[12] = '0' + baum->x % 10;
+        baum_write_packet(baum, identity, sizeof(identity));
+        break;
+    }
+    case BAUM_REQ_GetVersionNumber:
+    {
+        uint8_t version[] = { BAUM_RSP_VersionNumber, 1 }; /* ? */
+        DPRINTF("GetVersionNumber\n");
+        baum_write_packet(baum, version, sizeof(version));
+        break;
+    }
+    case BAUM_REQ_GetSerialNumber:
+    {
+        uint8_t serial[] = { BAUM_RSP_SerialNumber,
+            '0','0','0','0','0','0','0','0' };
+        DPRINTF("GetSerialNumber\n");
+        baum_write_packet(baum, serial, sizeof(serial));
+        break;
+    }
+    case BAUM_REQ_GetKeys:
+    {
+        DPRINTF("Get%0#2x\n", req);
+        /* ignore */
+        break;
+    }
+    default:
+        DPRINTF("unrecognized request %0#2x\n", req);
+        do
+            if (!len--)
+                return 0;
+        while (*cur++ != ESC);
+        cur--;
+        break;
+    }
+    return cur - buf;
+}
+
+/* The other end is writing some data.  Store it and try to interpret */
+static int baum_write(CharDriverState *chr, const uint8_t *buf, int len)
+{
+    BaumDriverState *baum = chr->opaque;
+    int tocopy, cur, eaten, orig_len = len;
+
+    if (!len)
+        return 0;
+    if (!baum->brlapi)
+        return len;
+
+    while (len) {
+        /* Complete our buffer as much as possible */
+        tocopy = len;
+        if (tocopy > BUF_SIZE - baum->in_buf_used)
+            tocopy = BUF_SIZE - baum->in_buf_used;
+
+        memcpy(baum->in_buf + baum->in_buf_used, buf, tocopy);
+        baum->in_buf_used += tocopy;
+        buf += tocopy;
+        len -= tocopy;
+
+        /* Interpret it as much as possible */
+        cur = 0;
+        while (cur < baum->in_buf_used &&
+                (eaten = baum_eat_packet(baum, baum->in_buf + cur, baum->in_buf_used - cur)))
+            cur += eaten;
+
+        /* Shift the remainder */
+        if (cur) {
+            memmove(baum->in_buf, baum->in_buf + cur, baum->in_buf_used - cur);
+            baum->in_buf_used -= cur;
+        }
+
+        /* And continue if any data left */
+    }
+    return orig_len;
+}
+
+/* Send the key code to the other end */
+static void baum_send_key(BaumDriverState *baum, uint8_t type, uint8_t value) {
+    uint8_t packet[] = { type, value };
+    DPRINTF("writing key %x %x\n", type, value);
+    baum_write_packet(baum, packet, sizeof(packet));
+}
+
+/* We got some data on the BrlAPI socket */
+static void baum_chr_read(void *opaque)
+{
+    BaumDriverState *baum = opaque;
+    brlapi_keyCode_t code;
+    int ret;
+    if (!baum->brlapi)
+        return;
+    while ((ret = brlapi__readKey(baum->brlapi, 0, &code)) == 1) {
+        DPRINTF("got key %"BRLAPI_PRIxKEYCODE"\n", code);
+        /* Emulate */
+        switch (code & BRLAPI_KEY_TYPE_MASK) {
+        case BRLAPI_KEY_TYPE_CMD:
+            switch (code & BRLAPI_KEY_CMD_BLK_MASK) {
+            case BRLAPI_KEY_CMD_ROUTE:
+                baum_send_key(baum, BAUM_RSP_RoutingKey, (code & BRLAPI_KEY_CMD_ARG_MASK)+1);
+                baum_send_key(baum, BAUM_RSP_RoutingKey, 0);
+                break;
+            case 0:
+                switch (code & BRLAPI_KEY_CMD_ARG_MASK) {
+                case BRLAPI_KEY_CMD_FWINLT:
+                    baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2);
+                    baum_send_key(baum, BAUM_RSP_TopKeys, 0);
+                    break;
+                case BRLAPI_KEY_CMD_FWINRT:
+                    baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR2);
+                    baum_send_key(baum, BAUM_RSP_TopKeys, 0);
+                    break;
+                case BRLAPI_KEY_CMD_LNUP:
+                    baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR1);
+                    baum_send_key(baum, BAUM_RSP_TopKeys, 0);
+                    break;
+                case BRLAPI_KEY_CMD_LNDN:
+                    baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR3);
+                    baum_send_key(baum, BAUM_RSP_TopKeys, 0);
+                    break;
+                case BRLAPI_KEY_CMD_TOP:
+                    baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TR1);
+                    baum_send_key(baum, BAUM_RSP_TopKeys, 0);
+                    break;
+                case BRLAPI_KEY_CMD_BOT:
+                    baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL3|BAUM_TR3);
+                    baum_send_key(baum, BAUM_RSP_TopKeys, 0);
+                    break;
+                case BRLAPI_KEY_CMD_TOP_LEFT:
+                    baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1);
+                    baum_send_key(baum, BAUM_RSP_TopKeys, 0);
+                    break;
+                case BRLAPI_KEY_CMD_BOT_LEFT:
+                    baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR3);
+                    baum_send_key(baum, BAUM_RSP_TopKeys, 0);
+                    break;
+                case BRLAPI_KEY_CMD_HOME:
+                    baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1|BAUM_TR3);
+                    baum_send_key(baum, BAUM_RSP_TopKeys, 0);
+                    break;
+                case BRLAPI_KEY_CMD_PREFMENU:
+                    baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TL3|BAUM_TR1);
+                    baum_send_key(baum, BAUM_RSP_TopKeys, 0);
+                    break;
+                }
+            }
+            break;
+        case BRLAPI_KEY_TYPE_SYM:
+            break;
+        }
+    }
+    if (ret == -1 && (brlapi_errno != BRLAPI_ERROR_LIBCERR || errno != EINTR)) {
+        brlapi_perror("baum: brlapi_readKey");
+        brlapi__closeConnection(baum->brlapi);
+        g_free(baum->brlapi);
+        baum->brlapi = NULL;
+    }
+}
+
+static void baum_close(struct CharDriverState *chr)
+{
+    BaumDriverState *baum = chr->opaque;
+
+    timer_free(baum->cellCount_timer);
+    if (baum->brlapi) {
+        brlapi__closeConnection(baum->brlapi);
+        g_free(baum->brlapi);
+    }
+    g_free(baum);
+}
+
+CharDriverState *chr_baum_init(void)
+{
+    BaumDriverState *baum;
+    CharDriverState *chr;
+    brlapi_handle_t *handle;
+#if defined(CONFIG_SDL)
+#if SDL_COMPILEDVERSION < SDL_VERSIONNUM(2, 0, 0)
+    SDL_SysWMinfo info;
+#endif
+#endif
+    int tty;
+
+    baum = g_malloc0(sizeof(BaumDriverState));
+    baum->chr = chr = qemu_chr_alloc();
+
+    chr->opaque = baum;
+    chr->chr_write = baum_write;
+    chr->chr_accept_input = baum_accept_input;
+    chr->chr_close = baum_close;
+
+    handle = g_malloc0(brlapi_getHandleSize());
+    baum->brlapi = handle;
+
+    baum->brlapi_fd = brlapi__openConnection(handle, NULL, NULL);
+    if (baum->brlapi_fd == -1) {
+        brlapi_perror("baum_init: brlapi_openConnection");
+        goto fail_handle;
+    }
+
+    baum->cellCount_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, baum_cellCount_timer_cb, baum);
+
+    if (brlapi__getDisplaySize(handle, &baum->x, &baum->y) == -1) {
+        brlapi_perror("baum_init: brlapi_getDisplaySize");
+        goto fail;
+    }
+
+#if defined(CONFIG_SDL)
+#if SDL_COMPILEDVERSION < SDL_VERSIONNUM(2, 0, 0)
+    memset(&info, 0, sizeof(info));
+    SDL_VERSION(&info.version);
+    if (SDL_GetWMInfo(&info))
+        tty = info.info.x11.wmwindow;
+    else
+#endif
+#endif
+        tty = BRLAPI_TTY_DEFAULT;
+
+    if (brlapi__enterTtyMode(handle, tty, NULL) == -1) {
+        brlapi_perror("baum_init: brlapi_enterTtyMode");
+        goto fail;
+    }
+
+    qemu_set_fd_handler(baum->brlapi_fd, baum_chr_read, NULL, baum);
+
+    return chr;
+
+fail:
+    timer_free(baum->cellCount_timer);
+    brlapi__closeConnection(handle);
+fail_handle:
+    g_free(handle);
+    g_free(chr);
+    g_free(baum);
+    return NULL;
+}
+
+static void register_types(void)
+{
+    register_char_driver("braille", CHARDEV_BACKEND_KIND_BRAILLE, NULL);
+}
+
+type_init(register_types);

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)
-{
-    return !cryptodev_backend_is_used(CRYPTODEV_BACKEND(uc));
-}
-
-static void cryptodev_backend_instance_init(Object *obj)
-{
-    object_property_add(obj, "queues", "uint32",
-                          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

@@ -9,8 +9,6 @@
  * 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"
@@ -32,7 +30,6 @@ struct HostMemoryBackendFile {
     HostMemoryBackend parent_obj;
 
     bool share;
-    bool discard_data;
     char *mem_path;
 };
 
@@ -46,25 +43,30 @@ file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
         return;
     }
     if (!fb->mem_path) {
-        error_setg(errp, "mem-path property not set");
+        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;
+    if (!memory_region_size(&backend->mr)) {
         backend->force_prealloc = mem_prealloc;
-        path = object_get_canonical_path(OBJECT(backend));
         memory_region_init_ram_from_file(&backend->mr, OBJECT(backend),
-                                 path,
+                                 object_get_canonical_path(OBJECT(backend)),
                                  backend->size, fb->share,
                                  fb->mem_path, errp);
-        g_free(path);
     }
 #endif
 }
 
+static void
+file_backend_class_init(ObjectClass *oc, void *data)
+{
+    HostMemoryBackendClass *bc = MEMORY_BACKEND_CLASS(oc);
+
+    bc->alloc = file_backend_memory_alloc;
+}
+
 static char *get_mem_path(Object *o, Error **errp)
 {
     HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
@@ -77,11 +79,13 @@ 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)) {
+    if (memory_region_size(&backend->mr)) {
         error_setg(errp, "cannot change property value");
         return;
     }
-    g_free(fb->mem_path);
+    if (fb->mem_path) {
+        g_free(fb->mem_path);
+    }
     fb->mem_path = g_strdup(str);
 }
 
@@ -97,68 +101,28 @@ 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)) {
+    if (memory_region_size(&backend->mr)) {
         error_setg(errp, "cannot change property value");
         return;
     }
     fb->share = value;
 }
 
-static bool file_memory_backend_get_discard_data(Object *o, Error **errp)
-{
-    return MEMORY_BACKEND_FILE(o)->discard_data;
-}
-
-static void file_memory_backend_set_discard_data(Object *o, bool value,
-                                               Error **errp)
-{
-    MEMORY_BACKEND_FILE(o)->discard_data = value;
-}
-
-static void file_backend_unparent(Object *obj)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-    HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(obj);
-
-    if (host_memory_backend_mr_inited(backend) && fb->discard_data) {
-        void *ptr = memory_region_get_ram_ptr(&backend->mr);
-        uint64_t sz = memory_region_size(&backend->mr);
-
-        qemu_madvise(ptr, sz, QEMU_MADV_REMOVE);
-    }
-}
-
 static void
-file_backend_class_init(ObjectClass *oc, void *data)
+file_backend_instance_init(Object *o)
 {
-    HostMemoryBackendClass *bc = MEMORY_BACKEND_CLASS(oc);
-
-    bc->alloc = file_backend_memory_alloc;
-    oc->unparent = file_backend_unparent;
-
-    object_class_property_add_bool(oc, "share",
-        file_memory_backend_get_share, file_memory_backend_set_share,
-        &error_abort);
-    object_class_property_add_bool(oc, "discard-data",
-        file_memory_backend_get_discard_data, file_memory_backend_set_discard_data,
-        &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);
+    object_property_add_bool(o, "share",
+                        file_memory_backend_get_share,
+                        file_memory_backend_set_share, NULL);
+    object_property_add_str(o, "mem-path", get_mem_path,
+                            set_mem_path, NULL);
 }
 
 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_init = file_backend_instance_init,
     .instance_size = sizeof(HostMemoryBackendFile),
 };
 

backends/hostmem-ram.c

@@ -9,9 +9,7 @@
  * 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"
@@ -28,7 +26,7 @@ ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
     }
 
     path = object_get_canonical_path_component(OBJECT(backend));
-    memory_region_init_ram_nomigrate(&backend->mr, OBJECT(backend), path,
+    memory_region_init_ram(&backend->mr, OBJECT(backend), path,
                            backend->size, errp);
     g_free(path);
 }

backends/hostmem.c

@@ -9,13 +9,11 @@
  * 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 "qapi/qmp/qerror.h"
 #include "qemu/config-file.h"
 #include "qom/object_interfaces.h"
 
@@ -28,29 +26,29 @@ 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)
+host_memory_backend_get_size(Object *obj, Visitor *v, void *opaque,
+                             const char *name, Error **errp)
 {
     HostMemoryBackend *backend = MEMORY_BACKEND(obj);
     uint64_t value = backend->size;
 
-    visit_type_size(v, name, &value, errp);
+    visit_type_size(v, &value, name, errp);
 }
 
 static void
-host_memory_backend_set_size(Object *obj, Visitor *v, const char *name,
-                             void *opaque, Error **errp)
+host_memory_backend_set_size(Object *obj, Visitor *v, void *opaque,
+                             const char *name, Error **errp)
 {
     HostMemoryBackend *backend = MEMORY_BACKEND(obj);
     Error *local_err = NULL;
     uint64_t value;
 
-    if (host_memory_backend_mr_inited(backend)) {
+    if (memory_region_size(&backend->mr)) {
         error_setg(&local_err, "cannot change property value");
         goto out;
     }
 
-    visit_type_size(v, name, &value, &local_err);
+    visit_type_size(v, &value, name, &local_err);
     if (local_err) {
         goto out;
     }
@@ -65,8 +63,8 @@ out:
 }
 
 static void
-host_memory_backend_get_host_nodes(Object *obj, Visitor *v, const char *name,
-                                   void *opaque, Error **errp)
+host_memory_backend_get_host_nodes(Object *obj, Visitor *v, void *opaque,
+                                   const char *name, Error **errp)
 {
     HostMemoryBackend *backend = MEMORY_BACKEND(obj);
     uint16List *host_nodes = NULL;
@@ -93,18 +91,18 @@ host_memory_backend_get_host_nodes(Object *obj, Visitor *v, const char *name,
         node = &(*node)->next;
     } while (true);
 
-    visit_type_uint16List(v, name, &host_nodes, errp);
+    visit_type_uint16List(v, &host_nodes, name, errp);
 }
 
 static void
-host_memory_backend_set_host_nodes(Object *obj, Visitor *v, const char *name,
-                                   void *opaque, Error **errp)
+host_memory_backend_set_host_nodes(Object *obj, Visitor *v, void *opaque,
+                                   const char *name, Error **errp)
 {
 #ifdef CONFIG_NUMA
     HostMemoryBackend *backend = MEMORY_BACKEND(obj);
     uint16List *l = NULL;
 
-    visit_type_uint16List(v, name, &l, errp);
+    visit_type_uint16List(v, &l, name, errp);
 
     while (l) {
         bitmap_set(backend->host_nodes, l->value, 1);
@@ -115,17 +113,24 @@ host_memory_backend_set_host_nodes(Object *obj, Visitor *v, const char *name,
 #endif
 }
 
-static int
-host_memory_backend_get_policy(Object *obj, Error **errp G_GNUC_UNUSED)
+static void
+host_memory_backend_get_policy(Object *obj, Visitor *v, void *opaque,
+                               const char *name, Error **errp)
 {
     HostMemoryBackend *backend = MEMORY_BACKEND(obj);
-    return backend->policy;
+    int policy = backend->policy;
+
+    visit_type_enum(v, &policy, HostMemPolicy_lookup, NULL, name, errp);
 }
 
 static void
-host_memory_backend_set_policy(Object *obj, int policy, Error **errp)
+host_memory_backend_set_policy(Object *obj, Visitor *v, void *opaque,
+                               const char *name, Error **errp)
 {
     HostMemoryBackend *backend = MEMORY_BACKEND(obj);
+    int policy;
+
+    visit_type_enum(v, &policy, HostMemPolicy_lookup, NULL, name, errp);
     backend->policy = policy;
 
 #ifndef CONFIG_NUMA
@@ -146,7 +151,7 @@ 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)) {
+    if (!memory_region_size(&backend->mr)) {
         backend->merge = value;
         return;
     }
@@ -172,7 +177,7 @@ 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)) {
+    if (!memory_region_size(&backend->mr)) {
         backend->dump = value;
         return;
     }
@@ -197,7 +202,6 @@ static bool host_memory_backend_get_prealloc(Object *obj, Error **errp)
 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) {
@@ -208,7 +212,7 @@ static void host_memory_backend_set_prealloc(Object *obj, bool value,
         }
     }
 
-    if (!host_memory_backend_mr_inited(backend)) {
+    if (!memory_region_size(&backend->mr)) {
         backend->prealloc = value;
         return;
     }
@@ -218,11 +222,7 @@ static void host_memory_backend_set_prealloc(Object *obj, bool value,
         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;
-        }
+        os_mem_prealloc(fd, ptr, sz);
         backend->prealloc = true;
     }
 }
@@ -230,36 +230,37 @@ static void host_memory_backend_set_prealloc(Object *obj, bool value,
 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->merge = qemu_opt_get_bool(qemu_get_machine_opts(),
+                                       "mem-merge", true);
+    backend->dump = qemu_opt_get_bool(qemu_get_machine_opts(),
+                                      "dump-guest-core", true);
     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;
+    object_property_add_bool(obj, "merge",
+                        host_memory_backend_get_merge,
+                        host_memory_backend_set_merge, NULL);
+    object_property_add_bool(obj, "dump",
+                        host_memory_backend_get_dump,
+                        host_memory_backend_set_dump, NULL);
+    object_property_add_bool(obj, "prealloc",
+                        host_memory_backend_get_prealloc,
+                        host_memory_backend_set_prealloc, NULL);
+    object_property_add(obj, "size", "int",
+                        host_memory_backend_get_size,
+                        host_memory_backend_set_size, NULL, NULL, NULL);
+    object_property_add(obj, "host-nodes", "int",
+                        host_memory_backend_get_host_nodes,
+                        host_memory_backend_set_host_nodes, NULL, NULL, NULL);
+    object_property_add(obj, "policy", "str",
+                        host_memory_backend_get_policy,
+                        host_memory_backend_set_policy, NULL, NULL, NULL);
 }
 
 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;
+    return memory_region_size(&backend->mr) ? &backend->mr : NULL;
 }
 
 static void
@@ -274,7 +275,8 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
     if (bc->alloc) {
         bc->alloc(backend, &local_err);
         if (local_err) {
-            goto out;
+            error_propagate(errp, local_err);
+            return;
         }
 
         ptr = memory_region_get_ram_ptr(&backend->mr);
@@ -304,7 +306,7 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
             return;
         } else if (maxnode == 0 && backend->policy != MPOL_DEFAULT) {
             error_setg(errp, "host-nodes must be set for policy %s",
-                       HostMemPolicy_str(backend->policy));
+                       HostMemPolicy_lookup[backend->policy]);
             return;
         }
 
@@ -318,11 +320,9 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
         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;
-            }
+            error_setg_errno(errp, errno,
+                             "cannot bind memory to host NUMA nodes");
+            return;
         }
 #endif
         /* Preallocate memory after the NUMA policy has been instantiated.
@@ -330,45 +330,24 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
          * 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;
-            }
+            os_mem_prealloc(memory_region_get_fd(&backend->mr), ptr, sz);
         }
     }
-out:
-    error_propagate(errp, local_err);
 }
 
 static bool
-host_memory_backend_can_be_deleted(UserCreatable *uc)
+host_memory_backend_can_be_deleted(UserCreatable *uc, Error **errp)
 {
-    if (host_memory_backend_is_mapped(MEMORY_BACKEND(uc))) {
+    MemoryRegion *mr;
+
+    mr = host_memory_backend_get_memory(MEMORY_BACKEND(uc), errp);
+    if (memory_region_is_mapped(mr)) {
         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)
 {
@@ -376,35 +355,6 @@ host_memory_backend_class_init(ObjectClass *oc, void *data)
 
     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 = {
@@ -415,7 +365,6 @@ static const TypeInfo host_memory_backend_info = {
     .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 },
         { }

backends/msmouse.c

@@ -0,0 +1,85 @@
+/*
+ * QEMU Microsoft serial mouse emulation
+ *
+ * Copyright (c) 2008 Lubomir Rintel
+ *
+ * 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 <stdlib.h>
+#include "qemu-common.h"
+#include "sysemu/char.h"
+#include "ui/console.h"
+
+#define MSMOUSE_LO6(n) ((n) & 0x3f)
+#define MSMOUSE_HI2(n) (((n) & 0xc0) >> 6)
+
+static void msmouse_event(void *opaque,
+                          int dx, int dy, int dz, int buttons_state)
+{
+    CharDriverState *chr = (CharDriverState *)opaque;
+
+    unsigned char bytes[4] = { 0x40, 0x00, 0x00, 0x00 };
+
+    /* Movement deltas */
+    bytes[0] |= (MSMOUSE_HI2(dy) << 2) | MSMOUSE_HI2(dx);
+    bytes[1] |= MSMOUSE_LO6(dx);
+    bytes[2] |= MSMOUSE_LO6(dy);
+
+    /* Buttons */
+    bytes[0] |= (buttons_state & 0x01 ? 0x20 : 0x00);
+    bytes[0] |= (buttons_state & 0x02 ? 0x10 : 0x00);
+    bytes[3] |= (buttons_state & 0x04 ? 0x20 : 0x00);
+
+    /* We always send the packet of, so that we do not have to keep track
+       of previous state of the middle button. This can potentially confuse
+       some very old drivers for two button mice though. */
+    qemu_chr_be_write(chr, bytes, 4);
+}
+
+static int msmouse_chr_write (struct CharDriverState *s, const uint8_t *buf, int len)
+{
+    /* Ignore writes to mouse port */
+    return len;
+}
+
+static void msmouse_chr_close (struct CharDriverState *chr)
+{
+    g_free (chr);
+}
+
+CharDriverState *qemu_chr_open_msmouse(void)
+{
+    CharDriverState *chr;
+
+    chr = qemu_chr_alloc();
+    chr->chr_write = msmouse_chr_write;
+    chr->chr_close = msmouse_chr_close;
+    chr->explicit_be_open = true;
+
+    qemu_add_mouse_event_handler(msmouse_event, chr, 0, "QEMU Microsoft Mouse");
+
+    return chr;
+}
+
+static void register_types(void)
+{
+    register_char_driver("msmouse", CHARDEV_BACKEND_KIND_MSMOUSE, NULL);
+}
+
+type_init(register_types);

backends/rng-egd.c

@@ -10,11 +10,10 @@
  * 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 "sysemu/char.h"
 #include "qapi/qmp/qerror.h"
+#include "hw/qdev.h" /* just for DEFINE_PROP_CHR */
 
 #define TYPE_RNG_EGD "rng-egd"
 #define RNG_EGD(obj) OBJECT_CHECK(RngEgd, (obj), TYPE_RNG_EGD)
@@ -23,14 +22,35 @@ typedef struct RngEgd
 {
     RngBackend parent;
 
-    CharBackend chr;
+    CharDriverState *chr;
     char *chr_name;
+
+    GSList *requests;
 } RngEgd;
 
-static void rng_egd_request_entropy(RngBackend *b, RngRequest *req)
+typedef struct RngRequest
+{
+    EntropyReceiveFunc *receive_entropy;
+    uint8_t *data;
+    void *opaque;
+    size_t offset;
+    size_t size;
+} RngRequest;
+
+static void rng_egd_request_entropy(RngBackend *b, size_t size,
+                                    EntropyReceiveFunc *receive_entropy,
+                                    void *opaque)
 {
     RngEgd *s = RNG_EGD(b);
-    size_t size = req->size;
+    RngRequest *req;
+
+    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);
 
     while (size > 0) {
         uint8_t header[2];
@@ -40,21 +60,28 @@ static void rng_egd_request_entropy(RngBackend *b, RngRequest *req)
         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));
+        qemu_chr_fe_write(s->chr, header, sizeof(header));
 
         size -= len;
     }
+
+    s->requests = g_slist_append(s->requests, req);
+}
+
+static void rng_egd_free_request(RngRequest *req)
+{
+    g_free(req->data);
+    g_free(req);
 }
 
 static int rng_egd_chr_can_read(void *opaque)
 {
     RngEgd *s = RNG_EGD(opaque);
-    RngRequest *req;
+    GSList *i;
     int size = 0;
 
-    QSIMPLEQ_FOREACH(req, &s->parent.requests, next) {
+    for (i = s->requests; i; i = i->next) {
+        RngRequest *req = i->data;
         size += req->size - req->offset;
     }
 
@@ -66,8 +93,8 @@ 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);
+    while (size > 0 && s->requests) {
+        RngRequest *req = s->requests->data;
         int len = MIN(size, req->size - req->offset);
 
         memcpy(req->data + req->offset, buf + buf_offset, len);
@@ -76,37 +103,62 @@ static void rng_egd_chr_read(void *opaque, const uint8_t *buf, int size)
         size -= len;
 
         if (req->offset == req->size) {
+            s->requests = g_slist_remove_link(s->requests, s->requests);
+
             req->receive_entropy(req->opaque, req->data, req->size);
 
-            rng_backend_finalize_request(&s->parent, req);
+            rng_egd_free_request(req);
         }
     }
 }
 
+static void rng_egd_free_requests(RngEgd *s)
+{
+    GSList *i;
+
+    for (i = s->requests; i; i = i->next) {
+        rng_egd_free_request(i->data);
+    }
+
+    g_slist_free(s->requests);
+    s->requests = NULL;
+}
+
+static void rng_egd_cancel_requests(RngBackend *b)
+{
+    RngEgd *s = RNG_EGD(b);
+
+    /* We simply delete the list of pending requests.  If there is data in the 
+     * queue waiting to be read, this is okay, because there will always be
+     * more data than we requested originally
+     */
+    rng_egd_free_requests(s);
+}
+
 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");
+        error_set(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);
+    s->chr = qemu_chr_find(s->chr_name);
+    if (s->chr == NULL) {
+        error_set(errp, QERR_DEVICE_NOT_FOUND, s->chr_name);
         return;
     }
-    if (!qemu_chr_fe_init(&s->chr, chr, errp)) {
+
+    if (qemu_chr_fe_claim(s->chr) != 0) {
+        error_set(errp, QERR_DEVICE_IN_USE, s->chr_name);
         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, NULL, s, NULL, true);
+    qemu_chr_add_handlers(s->chr, rng_egd_chr_can_read, rng_egd_chr_read,
+                          NULL, s);
 }
 
 static void rng_egd_set_chardev(Object *obj, const char *value, Error **errp)
@@ -115,7 +167,7 @@ static void rng_egd_set_chardev(Object *obj, const char *value, Error **errp)
     RngEgd *s = RNG_EGD(b);
 
     if (b->opened) {
-        error_setg(errp, QERR_PERMISSION_DENIED);
+        error_set(errp, QERR_PERMISSION_DENIED);
     } else {
         g_free(s->chr_name);
         s->chr_name = g_strdup(value);
@@ -125,10 +177,9 @@ static void rng_egd_set_chardev(Object *obj, const char *value, Error **errp)
 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);
+    if (s->chr && s->chr->label) {
+        return g_strdup(s->chr->label);
     }
 
     return NULL;
@@ -145,8 +196,14 @@ static void rng_egd_finalize(Object *obj)
 {
     RngEgd *s = RNG_EGD(obj);
 
-    qemu_chr_fe_deinit(&s->chr, false);
+    if (s->chr) {
+        qemu_chr_add_handlers(s->chr, NULL, NULL, NULL, NULL);
+        qemu_chr_fe_release(s->chr);
+    }
+
     g_free(s->chr_name);
+
+    rng_egd_free_requests(s);
 }
 
 static void rng_egd_class_init(ObjectClass *klass, void *data)
@@ -154,6 +211,7 @@ static void rng_egd_class_init(ObjectClass *klass, void *data)
     RngBackendClass *rbc = RNG_BACKEND_CLASS(klass);
 
     rbc->request_entropy = rng_egd_request_entropy;
+    rbc->cancel_requests = rng_egd_cancel_requests;
     rbc->opened = rng_egd_opened;
 }
 

backends/rng-random.c

@@ -10,19 +10,21 @@
  * 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
+struct RndRandom
 {
     RngBackend parent;
 
     int fd;
     char *filename;
+
+    EntropyReceiveFunc *receive_func;
+    void *opaque;
+    size_t size;
 };
 
 /**
@@ -34,45 +36,46 @@ struct RngRandom
 
 static void entropy_available(void *opaque)
 {
-    RngRandom *s = RNG_RANDOM(opaque);
+    RndRandom *s = RNG_RANDOM(opaque);
+    uint8_t buffer[s->size];
+    ssize_t len;
 
-    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);
+    len = read(s->fd, buffer, s->size);
+    if (len < 0 && errno == EAGAIN) {
+        return;
     }
+    g_assert(len != -1);
+
+    s->receive_func(s->opaque, buffer, len);
+    s->receive_func = NULL;
 
-    /* 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)
+static void rng_random_request_entropy(RngBackend *b, size_t size,
+                                        EntropyReceiveFunc *receive_entropy,
+                                        void *opaque)
 {
-    RngRandom *s = RNG_RANDOM(b);
+    RndRandom *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);
+    if (s->receive_func) {
+        s->receive_func(s->opaque, NULL, 0);
     }
+
+    s->receive_func = receive_entropy;
+    s->opaque = opaque;
+    s->size = size;
+
+    qemu_set_fd_handler(s->fd, entropy_available, NULL, s);
 }
 
 static void rng_random_opened(RngBackend *b, Error **errp)
 {
-    RngRandom *s = RNG_RANDOM(b);
+    RndRandom *s = RNG_RANDOM(b);
 
     if (s->filename == NULL) {
-        error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
-                   "filename", "a valid filename");
+        error_set(errp, QERR_INVALID_PARAMETER_VALUE,
+                  "filename", "a valid filename");
     } else {
         s->fd = qemu_open(s->filename, O_RDONLY | O_NONBLOCK);
         if (s->fd == -1) {
@@ -83,7 +86,7 @@ static void rng_random_opened(RngBackend *b, Error **errp)
 
 static char *rng_random_get_filename(Object *obj, Error **errp)
 {
-    RngRandom *s = RNG_RANDOM(obj);
+    RndRandom *s = RNG_RANDOM(obj);
 
     return g_strdup(s->filename);
 }
@@ -92,10 +95,10 @@ static void rng_random_set_filename(Object *obj, const char *filename,
                                  Error **errp)
 {
     RngBackend *b = RNG_BACKEND(obj);
-    RngRandom *s = RNG_RANDOM(obj);
+    RndRandom *s = RNG_RANDOM(obj);
 
     if (b->opened) {
-        error_setg(errp, QERR_PERMISSION_DENIED);
+        error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
@@ -105,7 +108,7 @@ static void rng_random_set_filename(Object *obj, const char *filename,
 
 static void rng_random_init(Object *obj)
 {
-    RngRandom *s = RNG_RANDOM(obj);
+    RndRandom *s = RNG_RANDOM(obj);
 
     object_property_add_str(obj, "filename",
                             rng_random_get_filename,
@@ -118,7 +121,7 @@ static void rng_random_init(Object *obj)
 
 static void rng_random_finalize(Object *obj)
 {
-    RngRandom *s = RNG_RANDOM(obj);
+    RndRandom *s = RNG_RANDOM(obj);
 
     if (s->fd != -1) {
         qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
@@ -139,7 +142,7 @@ static void rng_random_class_init(ObjectClass *klass, void *data)
 static const TypeInfo rng_random_info = {
     .name = TYPE_RNG_RANDOM,
     .parent = TYPE_RNG_BACKEND,
-    .instance_size = sizeof(RngRandom),
+    .instance_size = sizeof(RndRandom),
     .class_init = rng_random_class_init,
     .instance_init = rng_random_init,
     .instance_finalize = rng_random_finalize,

backends/rng.c

@@ -10,9 +10,7 @@
  * 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"
 
@@ -21,20 +19,18 @@ void rng_backend_request_entropy(RngBackend *s, size_t size,
                                  void *opaque)
 {
     RngBackendClass *k = RNG_BACKEND_GET_CLASS(s);
-    RngRequest *req;
 
     if (k->request_entropy) {
-        req = g_malloc(sizeof(*req));
+        k->request_entropy(s, size, receive_entropy, opaque);
+    }
+}
 
-        req->offset = 0;
-        req->size = size;
-        req->receive_entropy = receive_entropy;
-        req->opaque = opaque;
-        req->data = g_malloc(req->size);
+void rng_backend_cancel_requests(RngBackend *s)
+{
+    RngBackendClass *k = RNG_BACKEND_GET_CLASS(s);
 
-        k->request_entropy(s, req);
-
-        QSIMPLEQ_INSERT_TAIL(&s->requests, req, next);
+    if (k->cancel_requests) {
+        k->cancel_requests(s);
     }
 }
 
@@ -61,7 +57,7 @@ static void rng_backend_prop_set_opened(Object *obj, bool value, Error **errp)
     }
 
     if (!value && s->opened) {
-        error_setg(errp, QERR_PERMISSION_DENIED);
+        error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
@@ -76,48 +72,14 @@ static void rng_backend_prop_set_opened(Object *obj, bool value, Error **errp)
     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);
@@ -130,7 +92,6 @@ static const TypeInfo rng_backend_info = {
     .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,

backends/testdev.c

@@ -23,25 +23,19 @@
  * 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 "chardev/char.h"
+#include "sysemu/char.h"
 
 #define BUF_SIZE 32
 
 typedef struct {
-    Chardev parent;
-
+    CharDriverState *chr;
     uint8_t in_buf[32];
     int in_buf_used;
-} TestdevChardev;
-
-#define TYPE_CHARDEV_TESTDEV "chardev-testdev"
-#define TESTDEV_CHARDEV(obj)                                    \
-    OBJECT_CHECK(TestdevChardev, (obj), TYPE_CHARDEV_TESTDEV)
+} TestdevCharState;
 
 /* Try to interpret a whole incoming packet */
-static int testdev_eat_packet(TestdevChardev *testdev)
+static int testdev_eat_packet(TestdevCharState *testdev)
 {
     const uint8_t *cur = testdev->in_buf;
     int len = testdev->in_buf_used;
@@ -82,9 +76,9 @@ static int testdev_eat_packet(TestdevChardev *testdev)
 }
 
 /* The other end is writing some data.  Store it and try to interpret */
-static int testdev_chr_write(Chardev *chr, const uint8_t *buf, int len)
+static int testdev_write(CharDriverState *chr, const uint8_t *buf, int len)
 {
-    TestdevChardev *testdev = TESTDEV_CHARDEV(chr);
+    TestdevCharState *testdev = chr->opaque;
     int tocopy, eaten, orig_len = len;
 
     while (len) {
@@ -107,23 +101,31 @@ static int testdev_chr_write(Chardev *chr, const uint8_t *buf, int len)
     return orig_len;
 }
 
-static void char_testdev_class_init(ObjectClass *oc, void *data)
+static void testdev_close(struct CharDriverState *chr)
 {
-    ChardevClass *cc = CHARDEV_CLASS(oc);
+    TestdevCharState *testdev = chr->opaque;
 
-    cc->chr_write = testdev_chr_write;
+    g_free(testdev);
 }
 
-static const TypeInfo char_testdev_type_info = {
-    .name = TYPE_CHARDEV_TESTDEV,
-    .parent = TYPE_CHARDEV,
-    .instance_size = sizeof(TestdevChardev),
-    .class_init = char_testdev_class_init,
-};
+CharDriverState *chr_testdev_init(void)
+{
+    TestdevCharState *testdev;
+    CharDriverState *chr;
+
+    testdev = g_malloc0(sizeof(TestdevCharState));
+    testdev->chr = chr = g_malloc0(sizeof(CharDriverState));
+
+    chr->opaque = testdev;
+    chr->chr_write = testdev_write;
+    chr->chr_close = testdev_close;
+
+    return chr;
+}
 
 static void register_types(void)
 {
-    type_register_static(&char_testdev_type_info);
+    register_char_driver("testdev", CHARDEV_BACKEND_KIND_TESTDEV, NULL);
 }
 
 type_init(register_types);

backends/tpm.c

@@ -12,9 +12,7 @@
  * 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"
@@ -98,20 +96,6 @@ bool tpm_backend_get_tpm_established_flag(TPMBackend *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);
@@ -135,7 +119,7 @@ static void tpm_backend_prop_set_opened(Object *obj, bool value, Error **errp)
     }
 
     if (!value && s->opened) {
-        error_setg(errp, QERR_PERMISSION_DENIED);
+        error_set(errp, QERR_PERMISSION_DENIED);
         return;
     }
 
@@ -181,6 +165,17 @@ void tpm_backend_thread_end(TPMBackendThread *tbt)
     }
 }
 
+void tpm_backend_thread_tpm_reset(TPMBackendThread *tbt,
+                                  GFunc func, gpointer user_data)
+{
+    if (!tbt->pool) {
+        tpm_backend_thread_create(tbt, func, user_data);
+    } else {
+        g_thread_pool_push(tbt->pool, (gpointer)TPM_BACKEND_CMD_TPM_RESET,
+                           NULL);
+    }
+}
+
 static const TypeInfo tpm_backend_info = {
     .name = TYPE_TPM_BACKEND,
     .parent = TYPE_OBJECT,

balloon.c

@@ -24,30 +24,17 @@
  * THE SOFTWARE.
  */
 
-#include "qemu/osdep.h"
-#include "qemu-common.h"
+#include "monitor/monitor.h"
 #include "exec/cpu-common.h"
 #include "sysemu/kvm.h"
 #include "sysemu/balloon.h"
-#include "trace-root.h"
+#include "trace.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)
 {
@@ -71,6 +58,7 @@ int qemu_add_balloon_handler(QEMUBalloonEvent *event_func,
         /* We're already registered one balloon handler.  How many can
          * a guest really have?
          */
+        error_report("Another balloon device already registered");
         return -1;
     }
     balloon_event_fn = event_func;
@@ -109,7 +97,7 @@ void qmp_balloon(int64_t target, Error **errp)
     }
 
     if (target <= 0) {
-        error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "target", "a size");
+        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "target", "a size");
         return;
     }
 

block/Makefile.objs

@@ -1,37 +1,33 @@
-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 qcow2-bitmap.o
-block-obj-y += qed.o qed-l2-cache.o qed-table.o qed-cluster.o
+block-obj-y += raw_bsd.o qcow.o vdi.o vmdk.o cloop.o dmg.o bochs.o vpc.o vvfat.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-$(CONFIG_VHDX) += vhdx.o vhdx-endian.o vhdx-log.o
+block-obj-$(CONFIG_QUORUM) += quorum.o
+block-obj-y += parallels.o blkdebug.o blkverify.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-$(CONFIG_WIN32) += raw-win32.o win32-aio.o
+block-obj-$(CONFIG_POSIX) += raw-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 += null.o mirror.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-$(CONFIG_ARCHIPELAGO) += archipelago.o
 block-obj-$(CONFIG_LIBSSH2) += ssh.o
-block-obj-y += accounting.o dirty-bitmap.o
+block-obj-y += dictzip.o
+block-obj-y += tar.o
+block-obj-y += accounting.o
 block-obj-y += write-threshold.o
-block-obj-y += backup.o
-block-obj-$(CONFIG_REPLICATION) += replication.o
-block-obj-y += throttle.o
-
-block-obj-y += crypto.o
 
 common-obj-y += stream.o
+common-obj-y += commit.o
+common-obj-y += backup.o
 
-nfs.o-libs         := $(LIBNFS_LIBS)
 iscsi.o-cflags     := $(LIBISCSI_CFLAGS)
 iscsi.o-libs       := $(LIBISCSI_LIBS)
 curl.o-cflags      := $(CURL_CFLAGS)
@@ -40,10 +36,9 @@ 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)
+archipelago.o-libs := $(ARCHIPELAGO_LIBS)
+dmg.o-libs         := $(BZIP2_LIBS)
 qcow.o-libs        := -lz
 linux-aio.o-libs   := -laio

block/accounting.c

@@ -2,7 +2,6 @@
  * 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
@@ -23,66 +22,9 @@
  * 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)
-{
-    qemu_mutex_init(&stats->lock);
-    if (qtest_enabled()) {
-        clock_type = QEMU_CLOCK_VIRTUAL;
-    }
-}
-
-void block_acct_setup(BlockAcctStats *stats, bool account_invalid,
-                      bool account_failed)
-{
-    stats->account_invalid = account_invalid;
-    stats->account_failed = account_failed;
-}
-
-void block_acct_cleanup(BlockAcctStats *stats)
-{
-    BlockAcctTimedStats *s, *next;
-    QSLIST_FOREACH_SAFE(s, &stats->intervals, entries, next) {
-        g_free(s);
-    }
-    qemu_mutex_destroy(&stats->lock);
-}
-
-void block_acct_add_interval(BlockAcctStats *stats, unsigned interval_length)
-{
-    BlockAcctTimedStats *s;
-    unsigned i;
-
-    s = g_new0(BlockAcctTimedStats, 1);
-    s->interval_length = interval_length;
-    s->stats = stats;
-    qemu_mutex_lock(&stats->lock);
-    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);
-    }
-    qemu_mutex_unlock(&stats->lock);
-}
-
-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)
@@ -90,96 +32,32 @@ void block_acct_start(BlockAcctStats *stats, BlockAcctCookie *cookie,
     assert(type < BLOCK_MAX_IOTYPE);
 
     cookie->bytes = bytes;
-    cookie->start_time_ns = qemu_clock_get_ns(clock_type);
+    cookie->start_time_ns = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
     cookie->type = type;
 }
 
-static void block_account_one_io(BlockAcctStats *stats, BlockAcctCookie *cookie,
-                                 bool 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;
-    }
-
-    assert(cookie->type < BLOCK_MAX_IOTYPE);
-
-    qemu_mutex_lock(&stats->lock);
-
-    if (failed) {
-        stats->failed_ops[cookie->type]++;
-    } else {
-        stats->nr_bytes[cookie->type] += cookie->bytes;
-        stats->nr_ops[cookie->type]++;
-    }
-
-    if (!failed || stats->account_failed) {
-        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);
-        }
-    }
-
-    qemu_mutex_unlock(&stats->lock);
-}
-
 void block_acct_done(BlockAcctStats *stats, BlockAcctCookie *cookie)
 {
-    block_account_one_io(stats, cookie, false);
+    assert(cookie->type < BLOCK_MAX_IOTYPE);
+
+    stats->nr_bytes[cookie->type] += cookie->bytes;
+    stats->nr_ops[cookie->type]++;
+    stats->total_time_ns[cookie->type] +=
+        qemu_clock_get_ns(QEMU_CLOCK_REALTIME) - cookie->start_time_ns;
 }
 
-void block_acct_failed(BlockAcctStats *stats, BlockAcctCookie *cookie)
+
+void block_acct_highest_sector(BlockAcctStats *stats, int64_t sector_num,
+                               unsigned int nb_sectors)
 {
-    block_account_one_io(stats, cookie, true);
-}
-
-void block_acct_invalid(BlockAcctStats *stats, enum BlockAcctType type)
-{
-    assert(type < BLOCK_MAX_IOTYPE);
-
-    /* block_account_one_io() updates 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.
-     */
-    qemu_mutex_lock(&stats->lock);
-    stats->invalid_ops[type]++;
-
-    if (stats->account_invalid) {
-        stats->last_access_time_ns = qemu_clock_get_ns(clock_type);
+    if (stats->wr_highest_sector < sector_num + nb_sectors - 1) {
+        stats->wr_highest_sector = sector_num + nb_sectors - 1;
     }
-    qemu_mutex_unlock(&stats->lock);
 }
 
 void block_acct_merge_done(BlockAcctStats *stats, enum BlockAcctType type,
                       int num_requests)
 {
     assert(type < BLOCK_MAX_IOTYPE);
-
-    qemu_mutex_lock(&stats->lock);
     stats->merged[type] += num_requests;
-    qemu_mutex_unlock(&stats->lock);
-}
-
-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);
-
-    qemu_mutex_lock(&stats->stats->lock);
-    sum = timed_average_sum(&stats->latency[type], &elapsed);
-    qemu_mutex_unlock(&stats->stats->lock);
-
-    return (double) sum / elapsed;
 }

block/backup.c

@@ -11,39 +11,39 @@
  *
  */
 
-#include "qemu/osdep.h"
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.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 "block/blockjob.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 BACKUP_CLUSTER_BITS 16
+#define BACKUP_CLUSTER_SIZE (1 << BACKUP_CLUSTER_BITS)
+#define BACKUP_SECTORS_PER_CLUSTER (BACKUP_CLUSTER_SIZE / BDRV_SECTOR_SIZE)
+
 #define SLICE_TIME 100000000ULL /* ns */
 
+typedef struct CowRequest {
+    int64_t start;
+    int64_t end;
+    QLIST_ENTRY(CowRequest) list;
+    CoQueue wait_queue; /* coroutines blocked on this request */
+} CowRequest;
+
 typedef struct BackupBlockJob {
     BlockJob common;
-    BlockBackend *target;
-    /* bitmap for sync=incremental */
-    BdrvDirtyBitmap *sync_bitmap;
+    BlockDriverState *target;
     MirrorSyncMode sync_mode;
     RateLimit limit;
     BlockdevOnError on_source_error;
     BlockdevOnError on_target_error;
     CoRwlock flush_rwlock;
-    uint64_t bytes_read;
-    unsigned long *done_bitmap;
-    int64_t cluster_size;
-    bool compress;
-    NotifierWithReturn before_write;
+    uint64_t sectors_read;
+    HBitmap *bitmap;
     QLIST_HEAD(, CowRequest) inflight_reqs;
 } BackupBlockJob;
 
@@ -58,8 +58,8 @@ static void coroutine_fn wait_for_overlapping_requests(BackupBlockJob *job,
     do {
         retry = false;
         QLIST_FOREACH(req, &job->inflight_reqs, list) {
-            if (end > req->start_byte && start < req->end_byte) {
-                qemu_co_queue_wait(&req->wait_queue, NULL);
+            if (end > req->start && start < req->end) {
+                qemu_co_queue_wait(&req->wait_queue);
                 retry = true;
                 break;
             }
@@ -69,10 +69,10 @@ static void coroutine_fn wait_for_overlapping_requests(BackupBlockJob *job,
 
 /* Keep track of an in-flight request */
 static void cow_request_begin(CowRequest *req, BackupBlockJob *job,
-                              int64_t start, int64_t end)
+                                     int64_t start, int64_t end)
 {
-    req->start_byte = start;
-    req->end_byte = end;
+    req->start = start;
+    req->end = end;
     qemu_co_queue_init(&req->wait_queue);
     QLIST_INSERT_HEAD(&job->inflight_reqs, req, list);
 }
@@ -84,49 +84,50 @@ static void cow_request_end(CowRequest *req)
     qemu_co_queue_restart_all(&req->wait_queue);
 }
 
-static int coroutine_fn backup_do_cow(BackupBlockJob *job,
-                                      int64_t offset, uint64_t bytes,
-                                      bool *error_is_read,
-                                      bool is_write_notifier)
+static int coroutine_fn backup_do_cow(BlockDriverState *bs,
+                                      int64_t sector_num, int nb_sectors,
+                                      bool *error_is_read)
 {
-    BlockBackend *blk = job->common.blk;
+    BackupBlockJob *job = (BackupBlockJob *)bs->job;
     CowRequest cow_request;
     struct iovec iov;
     QEMUIOVector bounce_qiov;
     void *bounce_buffer = NULL;
     int ret = 0;
-    int64_t start, end; /* bytes */
-    int n; /* bytes */
+    int64_t start, end;
+    int n;
 
     qemu_co_rwlock_rdlock(&job->flush_rwlock);
 
-    start = QEMU_ALIGN_DOWN(offset, job->cluster_size);
-    end = QEMU_ALIGN_UP(bytes + offset, job->cluster_size);
+    start = sector_num / BACKUP_SECTORS_PER_CLUSTER;
+    end = DIV_ROUND_UP(sector_num + nb_sectors, BACKUP_SECTORS_PER_CLUSTER);
 
-    trace_backup_do_cow_enter(job, start, offset, bytes);
+    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 += job->cluster_size) {
-        if (test_bit(start / job->cluster_size, job->done_bitmap)) {
+    for (; start < end; start++) {
+        if (hbitmap_get(job->bitmap, start)) {
             trace_backup_do_cow_skip(job, start);
             continue; /* already copied */
         }
 
         trace_backup_do_cow_process(job, start);
 
-        n = MIN(job->cluster_size, job->common.len - start);
+        n = MIN(BACKUP_SECTORS_PER_CLUSTER,
+                job->common.len / BDRV_SECTOR_SIZE -
+                start * BACKUP_SECTORS_PER_CLUSTER);
 
         if (!bounce_buffer) {
-            bounce_buffer = blk_blockalign(blk, job->cluster_size);
+            bounce_buffer = qemu_blockalign(bs, BACKUP_CLUSTER_SIZE);
         }
         iov.iov_base = bounce_buffer;
-        iov.iov_len = n;
+        iov.iov_len = n * BDRV_SECTOR_SIZE;
         qemu_iovec_init_external(&bounce_qiov, &iov, 1);
 
-        ret = blk_co_preadv(blk, start, bounce_qiov.size, &bounce_qiov,
-                            is_write_notifier ? BDRV_REQ_NO_SERIALISING : 0);
+        ret = bdrv_co_readv(bs, start * BACKUP_SECTORS_PER_CLUSTER, n,
+                            &bounce_qiov);
         if (ret < 0) {
             trace_backup_do_cow_read_fail(job, start, ret);
             if (error_is_read) {
@@ -136,12 +137,13 @@ static int coroutine_fn backup_do_cow(BackupBlockJob *job,
         }
 
         if (buffer_is_zero(iov.iov_base, iov.iov_len)) {
-            ret = blk_co_pwrite_zeroes(job->target, start,
-                                       bounce_qiov.size, BDRV_REQ_MAY_UNMAP);
+            ret = bdrv_co_write_zeroes(job->target,
+                                       start * BACKUP_SECTORS_PER_CLUSTER,
+                                       n, BDRV_REQ_MAY_UNMAP);
         } else {
-            ret = blk_co_pwritev(job->target, start,
-                                 bounce_qiov.size, &bounce_qiov,
-                                 job->compress ? BDRV_REQ_WRITE_COMPRESSED : 0);
+            ret = bdrv_co_writev(job->target,
+                                 start * BACKUP_SECTORS_PER_CLUSTER, n,
+                                 &bounce_qiov);
         }
         if (ret < 0) {
             trace_backup_do_cow_write_fail(job, start, ret);
@@ -151,13 +153,13 @@ static int coroutine_fn backup_do_cow(BackupBlockJob *job,
             goto out;
         }
 
-        set_bit(start / job->cluster_size, job->done_bitmap);
+        hbitmap_set(job->bitmap, start, 1);
 
         /* 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->bytes_read += n;
-        job->common.offset += n;
+        job->sectors_read += n;
+        job->common.offset += n * BDRV_SECTOR_SIZE;
     }
 
 out:
@@ -167,7 +169,7 @@ out:
 
     cow_request_end(&cow_request);
 
-    trace_backup_do_cow_return(job, offset, bytes, ret);
+    trace_backup_do_cow_return(job, sector_num, nb_sectors, ret);
 
     qemu_co_rwlock_unlock(&job->flush_rwlock);
 
@@ -178,14 +180,14 @@ 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(QEMU_IS_ALIGNED(req->offset, BDRV_SECTOR_SIZE));
-    assert(QEMU_IS_ALIGNED(req->bytes, BDRV_SECTOR_SIZE));
+    assert((req->offset & (BDRV_SECTOR_SIZE - 1)) == 0);
+    assert((req->bytes & (BDRV_SECTOR_SIZE - 1)) == 0);
 
-    return backup_do_cow(job, req->offset, req->bytes, NULL, true);
+    return backup_do_cow(req->bs, sector_num, nb_sectors, NULL);
 }
 
 static void backup_set_speed(BlockJob *job, int64_t speed, Error **errp)
@@ -193,131 +195,35 @@ 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");
+        error_set(errp, QERR_INVALID_PARAMETER, "speed");
         return;
     }
-    ratelimit_set_speed(&s->limit, speed, SLICE_TIME);
+    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)
+static void backup_iostatus_reset(BlockJob *job)
 {
     BackupBlockJob *s = container_of(job, BackupBlockJob, common);
 
-    blk_set_aio_context(s->target, aio_context);
+    bdrv_iostatus_reset(s->target);
 }
 
-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 offset,
-                                          uint64_t bytes)
-{
-    BackupBlockJob *backup_job = container_of(job, BackupBlockJob, common);
-    int64_t start, end;
-
-    assert(job->driver->job_type == BLOCK_JOB_TYPE_BACKUP);
-
-    start = QEMU_ALIGN_DOWN(offset, backup_job->cluster_size);
-    end = QEMU_ALIGN_UP(offset + bytes, backup_job->cluster_size);
-    wait_for_overlapping_requests(backup_job, start, end);
-}
-
-void backup_cow_request_begin(CowRequest *req, BlockJob *job,
-                              int64_t offset, uint64_t bytes)
-{
-    BackupBlockJob *backup_job = container_of(job, BackupBlockJob, common);
-    int64_t start, end;
-
-    assert(job->driver->job_type == BLOCK_JOB_TYPE_BACKUP);
-
-    start = QEMU_ALIGN_DOWN(offset, backup_job->cluster_size);
-    end = QEMU_ALIGN_UP(offset + bytes, backup_job->cluster_size);
-    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 const BlockJobDriver backup_job_driver = {
+    .instance_size  = sizeof(BackupBlockJob),
+    .job_type       = BLOCK_JOB_TYPE_BACKUP,
+    .set_speed      = backup_set_speed,
+    .iostatus_reset = backup_iostatus_reset,
+};
 
 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);
+        return block_job_error_action(&job->common, job->common.bs,
+                                      job->on_source_error, true, error);
     } else {
-        return block_job_error_action(&job->common, job->on_target_error,
-                                      false, error);
+        return block_job_error_action(&job->common, job->target,
+                                      job->on_target_error, false, error);
     }
 }
 
@@ -327,144 +233,84 @@ typedef struct {
 
 static void backup_complete(BlockJob *job, void *opaque)
 {
+    BackupBlockJob *s = container_of(job, BackupBlockJob, common);
     BackupCompleteData *data = opaque;
 
+    bdrv_unref(s->target);
+
     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->bytes_read);
-        job->bytes_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 offset;
-    int64_t cluster;
-    int64_t end;
-    int64_t last_cluster = -1;
-    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 ((offset = bdrv_dirty_iter_next(dbi) * BDRV_SECTOR_SIZE) >= 0) {
-        cluster = offset / job->cluster_size;
-
-        /* 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 * job->cluster_size,
-                                    job->cluster_size, &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 * job->cluster_size / BDRV_SECTOR_SIZE);
-        }
-
-        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 offset;
+    BlockDriverState *bs = job->common.bs;
+    BlockDriverState *target = job->target;
+    BlockdevOnError on_target_error = job->on_target_error;
+    NotifierWithReturn before_write = {
+        .notify = backup_before_write_notify,
+    };
+    int64_t start, end;
     int ret = 0;
 
     QLIST_INIT(&job->inflight_reqs);
     qemu_co_rwlock_init(&job->flush_rwlock);
 
-    job->done_bitmap = bitmap_new(DIV_ROUND_UP(job->common.len,
-                                               job->cluster_size));
+    start = 0;
+    end = DIV_ROUND_UP(job->common.len / BDRV_SECTOR_SIZE,
+                       BACKUP_SECTORS_PER_CLUSTER);
 
-    job->before_write.notify = backup_before_write_notify;
-    bdrv_add_before_write_notifier(bs, &job->before_write);
+    job->bitmap = hbitmap_alloc(end, 0);
+
+    bdrv_set_enable_write_cache(target, true);
+    bdrv_set_on_error(target, on_target_error, on_target_error);
+    bdrv_iostatus_enable(target);
+
+    bdrv_add_before_write_notifier(bs, &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);
+            job->common.busy = false;
+            qemu_coroutine_yield();
+            job->common.busy = true;
         }
-    } 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 (offset = 0; offset < job->common.len;
-             offset += job->cluster_size) {
+        for (; start < end; start++) {
             bool error_is_read;
-            int alloced = 0;
 
-            if (yield_and_check(job)) {
+            if (block_job_is_cancelled(&job->common)) {
+                break;
+            }
+
+            /* we need to yield so that qemu_aio_flush() 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)) {
                 break;
             }
 
             if (job->sync_mode == MIRROR_SYNC_MODE_TOP) {
-                int i;
-                int64_t n;
+                int i, n;
+                int alloced = 0;
 
                 /* Check to see if these blocks are already in the
                  * backing file. */
 
-                for (i = 0; i < job->cluster_size;) {
+                for (i = 0; i < BACKUP_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.
@@ -472,11 +318,12 @@ static void coroutine_fn backup_run(void *opaque)
                      * backup cluster length.  We end up copying more than
                      * needed but at some point that is always the case. */
                     alloced =
-                        bdrv_is_allocated(bs, offset + i,
-                                          job->cluster_size - i, &n);
+                        bdrv_is_allocated(bs,
+                                start * BACKUP_SECTORS_PER_CLUSTER + i,
+                                BACKUP_SECTORS_PER_CLUSTER - i, &n);
                     i += n;
 
-                    if (alloced || n == 0) {
+                    if (alloced == 1 || n == 0) {
                         break;
                     }
                 }
@@ -488,12 +335,8 @@ static void coroutine_fn backup_run(void *opaque)
                 }
             }
             /* FULL sync mode we copy the whole drive. */
-            if (alloced < 0) {
-                ret = alloced;
-            } else {
-                ret = backup_do_cow(job, offset, job->cluster_size,
-                                    &error_is_read, false);
-            }
+            ret = backup_do_cow(bs, start * BACKUP_SECTORS_PER_CLUSTER,
+                    BACKUP_SECTORS_PER_CLUSTER, &error_is_read);
             if (ret < 0) {
                 /* Depending on error action, fail now or retry cluster */
                 BlockErrorAction action =
@@ -501,181 +344,94 @@ static void coroutine_fn backup_run(void *opaque)
                 if (action == BLOCK_ERROR_ACTION_REPORT) {
                     break;
                 } else {
-                    offset -= job->cluster_size;
+                    start--;
                     continue;
                 }
             }
         }
     }
 
-    notifier_with_return_remove(&job->before_write);
+    notifier_with_return_remove(&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);
+
+    hbitmap_free(job->bitmap);
+
+    bdrv_iostatus_disable(target);
+    bdrv_op_unblock_all(target, job->common.blocker);
 
     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,
+void backup_start(BlockDriverState *bs, BlockDriverState *target,
+                  int64_t speed, MirrorSyncMode sync_mode,
                   BlockdevOnError on_source_error,
                   BlockdevOnError on_target_error,
-                  int creation_flags,
                   BlockCompletionFunc *cb, void *opaque,
-                  BlockJobTxn *txn, Error **errp)
+                  Error **errp)
 {
     int64_t len;
-    BlockDriverInfo bdi;
-    BackupBlockJob *job = NULL;
-    int ret;
 
     assert(bs);
     assert(target);
+    assert(cb);
 
     if (bs == target) {
         error_setg(errp, "Source and target cannot be the same");
-        return NULL;
+        return;
+    }
+
+    if ((on_source_error == BLOCKDEV_ON_ERROR_STOP ||
+         on_source_error == BLOCKDEV_ON_ERROR_ENOSPC) &&
+        !bdrv_iostatus_is_enabled(bs)) {
+        error_set(errp, QERR_INVALID_PARAMETER, "on-source-error");
+        return;
     }
 
     if (!bdrv_is_inserted(bs)) {
         error_setg(errp, "Device is not inserted: %s",
                    bdrv_get_device_name(bs));
-        return NULL;
+        return;
     }
 
     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;
+        return;
     }
 
     if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKUP_SOURCE, errp)) {
-        return NULL;
+        return;
     }
 
     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_str(sync_mode));
-        return NULL;
+        return;
     }
 
     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;
+        return;
     }
 
-    /* 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);
+    BackupBlockJob *job = block_job_create(&backup_job_driver, bs, speed,
+                                           cb, opaque, errp);
     if (!job) {
-        goto error;
+        return;
     }
 
-    /* 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;
-    }
+    bdrv_op_block_all(target, job->common.blocker);
 
     job->on_source_error = on_source_error;
     job->on_target_error = on_target_error;
+    job->target = target;
     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 */
-        warn_report("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;
+    job->common.co = qemu_coroutine_create(backup_run);
+    qemu_coroutine_enter(job->common.co, job);
 }

block/blkdebug.c

@@ -1,7 +1,6 @@
 /*
  * 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
@@ -23,37 +22,27 @@
  * THE SOFTWARE.
  */
 
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu/cutils.h"
+#include "qemu-common.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];
+    QLIST_HEAD(, BlkdebugRule) rules[BLKDBG_EVENT_MAX];
     QSIMPLEQ_HEAD(, BlkdebugRule) active_rules;
     QLIST_HEAD(, BlkdebugSuspendedReq) suspended_reqs;
 } BDRVBlkdebugState;
 
 typedef struct BlkdebugAIOCB {
     BlockAIOCB common;
+    QEMUBH *bh;
     int ret;
 } BlkdebugAIOCB;
 
@@ -63,6 +52,10 @@ typedef struct BlkdebugSuspendedReq {
     QLIST_ENTRY(BlkdebugSuspendedReq) next;
 } BlkdebugSuspendedReq;
 
+static const AIOCBInfo blkdebug_aiocb_info = {
+    .aiocb_size    = sizeof(BlkdebugAIOCB),
+};
+
 enum {
     ACTION_INJECT_ERROR,
     ACTION_SET_STATE,
@@ -70,7 +63,7 @@ enum {
 };
 
 typedef struct BlkdebugRule {
-    BlkdebugEvent event;
+    BlkDebugEvent event;
     int action;
     int state;
     union {
@@ -78,7 +71,7 @@ typedef struct BlkdebugRule {
             int error;
             int immediately;
             int once;
-            int64_t offset;
+            int64_t sector;
         } inject;
         struct {
             int new_state;
@@ -149,28 +142,98 @@ static QemuOptsList *config_groups[] = {
     NULL
 };
 
+static const char *event_names[BLKDBG_EVENT_MAX] = {
+    [BLKDBG_L1_UPDATE]                      = "l1_update",
+    [BLKDBG_L1_GROW_ALLOC_TABLE]            = "l1_grow.alloc_table",
+    [BLKDBG_L1_GROW_WRITE_TABLE]            = "l1_grow.write_table",
+    [BLKDBG_L1_GROW_ACTIVATE_TABLE]         = "l1_grow.activate_table",
+
+    [BLKDBG_L2_LOAD]                        = "l2_load",
+    [BLKDBG_L2_UPDATE]                      = "l2_update",
+    [BLKDBG_L2_UPDATE_COMPRESSED]           = "l2_update_compressed",
+    [BLKDBG_L2_ALLOC_COW_READ]              = "l2_alloc.cow_read",
+    [BLKDBG_L2_ALLOC_WRITE]                 = "l2_alloc.write",
+
+    [BLKDBG_READ_AIO]                       = "read_aio",
+    [BLKDBG_READ_BACKING_AIO]               = "read_backing_aio",
+    [BLKDBG_READ_COMPRESSED]                = "read_compressed",
+
+    [BLKDBG_WRITE_AIO]                      = "write_aio",
+    [BLKDBG_WRITE_COMPRESSED]               = "write_compressed",
+
+    [BLKDBG_VMSTATE_LOAD]                   = "vmstate_load",
+    [BLKDBG_VMSTATE_SAVE]                   = "vmstate_save",
+
+    [BLKDBG_COW_READ]                       = "cow_read",
+    [BLKDBG_COW_WRITE]                      = "cow_write",
+
+    [BLKDBG_REFTABLE_LOAD]                  = "reftable_load",
+    [BLKDBG_REFTABLE_GROW]                  = "reftable_grow",
+    [BLKDBG_REFTABLE_UPDATE]                = "reftable_update",
+
+    [BLKDBG_REFBLOCK_LOAD]                  = "refblock_load",
+    [BLKDBG_REFBLOCK_UPDATE]                = "refblock_update",
+    [BLKDBG_REFBLOCK_UPDATE_PART]           = "refblock_update_part",
+    [BLKDBG_REFBLOCK_ALLOC]                 = "refblock_alloc",
+    [BLKDBG_REFBLOCK_ALLOC_HOOKUP]          = "refblock_alloc.hookup",
+    [BLKDBG_REFBLOCK_ALLOC_WRITE]           = "refblock_alloc.write",
+    [BLKDBG_REFBLOCK_ALLOC_WRITE_BLOCKS]    = "refblock_alloc.write_blocks",
+    [BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE]     = "refblock_alloc.write_table",
+    [BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE]    = "refblock_alloc.switch_table",
+
+    [BLKDBG_CLUSTER_ALLOC]                  = "cluster_alloc",
+    [BLKDBG_CLUSTER_ALLOC_BYTES]            = "cluster_alloc_bytes",
+    [BLKDBG_CLUSTER_FREE]                   = "cluster_free",
+
+    [BLKDBG_FLUSH_TO_OS]                    = "flush_to_os",
+    [BLKDBG_FLUSH_TO_DISK]                  = "flush_to_disk",
+
+    [BLKDBG_PWRITEV_RMW_HEAD]               = "pwritev_rmw.head",
+    [BLKDBG_PWRITEV_RMW_AFTER_HEAD]         = "pwritev_rmw.after_head",
+    [BLKDBG_PWRITEV_RMW_TAIL]               = "pwritev_rmw.tail",
+    [BLKDBG_PWRITEV_RMW_AFTER_TAIL]         = "pwritev_rmw.after_tail",
+    [BLKDBG_PWRITEV]                        = "pwritev",
+    [BLKDBG_PWRITEV_ZERO]                   = "pwritev_zero",
+    [BLKDBG_PWRITEV_DONE]                   = "pwritev_done",
+
+    [BLKDBG_EMPTY_IMAGE_PREPARE]            = "empty_image_prepare",
+};
+
+static int get_event_by_name(const char *name, BlkDebugEvent *event)
+{
+    int i;
+
+    for (i = 0; i < BLKDBG_EVENT_MAX; i++) {
+        if (!strcmp(event_names[i], name)) {
+            *event = i;
+            return 0;
+        }
+    }
+
+    return -1;
+}
+
 struct add_rule_data {
     BDRVBlkdebugState *s;
     int action;
+    Error **errp;
 };
 
-static int add_rule(void *opaque, QemuOpts *opts, Error **errp)
+static int add_rule(QemuOpts *opts, void *opaque)
 {
     struct add_rule_data *d = opaque;
     BDRVBlkdebugState *s = d->s;
     const char* event_name;
-    int event;
+    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");
+        error_setg(d->errp, "Missing event name for rule");
         return -1;
-    }
-    event = qapi_enum_parse(&BlkdebugEvent_lookup, event_name, -1, errp);
-    if (event < 0) {
+    } else if (get_event_by_name(event_name, &event) < 0) {
+        error_setg(d->errp, "Invalid event name \"%s\"", event_name);
         return -1;
     }
 
@@ -189,9 +252,7 @@ static int add_rule(void *opaque, QemuOpts *opts, Error **errp)
         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;
+        rule->options.inject.sector = qemu_opt_get_number(opts, "sector", -1);
         break;
 
     case ACTION_SET_STATE:
@@ -258,7 +319,8 @@ static int read_config(BDRVBlkdebugState *s, const char *filename,
 
     d.s = s;
     d.action = ACTION_INJECT_ERROR;
-    qemu_opts_foreach(&inject_error_opts, add_rule, &d, &local_err);
+    d.errp = &local_err;
+    qemu_opts_foreach(&inject_error_opts, add_rule, &d, 1);
     if (local_err) {
         error_propagate(errp, local_err);
         ret = -EINVAL;
@@ -266,7 +328,7 @@ static int read_config(BDRVBlkdebugState *s, const char *filename,
     }
 
     d.action = ACTION_SET_STATE;
-    qemu_opts_foreach(&set_state_opts, add_rule, &d, &local_err);
+    qemu_opts_foreach(&set_state_opts, add_rule, &d, 1);
     if (local_err) {
         error_propagate(errp, local_err);
         ret = -EINVAL;
@@ -293,7 +355,7 @@ static void blkdebug_parse_filename(const char *filename, QDict *options,
     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);
+        qdict_put(options, "x-image", qstring_from_str(filename));
         return;
     }
 
@@ -312,7 +374,7 @@ static void blkdebug_parse_filename(const char *filename, QDict *options,
 
     /* TODO Allow multi-level nesting and set file.filename here */
     filename = c + 1;
-    qdict_put_str(options, "x-image", filename);
+    qdict_put(options, "x-image", qstring_from_str(filename));
 }
 
 static QemuOptsList runtime_opts = {
@@ -334,31 +396,6 @@ static QemuOptsList runtime_opts = {
             .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 */ }
     },
 };
@@ -369,8 +406,9 @@ static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,
     BDRVBlkdebugState *s = bs->opaque;
     QemuOpts *opts;
     Error *local_err = NULL;
-    int ret;
+    const char *config;
     uint64_t align;
+    int ret;
 
     opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
     qemu_opts_absorb_qdict(opts, options, &local_err);
@@ -381,8 +419,8 @@ static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,
     }
 
     /* 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);
+    config = qemu_opt_get(opts, "config");
+    ret = read_config(s, config, options, errp);
     if (ret) {
         goto out;
     }
@@ -390,243 +428,134 @@ static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,
     /* 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;
+    /* Open the backing file */
+    assert(bs->file == NULL);
+    ret = bdrv_open_image(&bs->file, qemu_opt_get(opts, "x-image"), options, "image",
+                          flags | BDRV_O_PROTOCOL, false, &local_err);
+    if (ret < 0) {
         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;
+    /* Set request alignment */
+    align = qemu_opt_get_size(opts, "align", bs->request_alignment);
+    if (align > 0 && align < INT_MAX && !(align & (align - 1))) {
+        bs->request_alignment = align;
+    } else {
+        error_setg(errp, "Invalid alignment");
+        ret = -EINVAL;
+        goto fail_unref;
     }
 
     ret = 0;
+    goto out;
+
+fail_unref:
+    bdrv_unref(bs->file);
 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)
+static void error_callback_bh(void *opaque)
+{
+    struct BlkdebugAIOCB *acb = opaque;
+    qemu_bh_delete(acb->bh);
+    acb->common.cb(acb->common.opaque, acb->ret);
+    qemu_aio_unref(acb);
+}
+
+static BlockAIOCB *inject_error(BlockDriverState *bs,
+    BlockCompletionFunc *cb, void *opaque, BlkdebugRule *rule)
 {
     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;
+    int error = rule->options.inject.error;
+    struct BlkdebugAIOCB *acb;
+    QEMUBH *bh;
+    bool immediately = rule->options.inject.immediately;
 
     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();
+    if (immediately) {
+        return NULL;
     }
 
-    return -error;
+    acb = qemu_aio_get(&blkdebug_aiocb_info, bs, cb, opaque);
+    acb->ret = -error;
+
+    bh = aio_bh_new(bdrv_get_aio_context(bs), error_callback_bh, acb);
+    acb->bh = bh;
+    qemu_bh_schedule(bh);
+
+    return &acb->common;
 }
 
-static int coroutine_fn
-blkdebug_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
-                   QEMUIOVector *qiov, int flags)
+static BlockAIOCB *blkdebug_aio_readv(BlockDriverState *bs,
+    int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
+    BlockCompletionFunc *cb, void *opaque)
 {
-    int err;
+    BDRVBlkdebugState *s = bs->opaque;
+    BlkdebugRule *rule = NULL;
 
-    /* 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);
+    QSIMPLEQ_FOREACH(rule, &s->active_rules, active_next) {
+        if (rule->options.inject.sector == -1 ||
+            (rule->options.inject.sector >= sector_num &&
+             rule->options.inject.sector < sector_num + nb_sectors)) {
+            break;
+        }
     }
 
-    err = rule_check(bs, offset, bytes);
-    if (err) {
-        return err;
+    if (rule && rule->options.inject.error) {
+        return inject_error(bs, cb, opaque, rule);
     }
 
-    return bdrv_co_preadv(bs->file, offset, bytes, qiov, flags);
+    return bdrv_aio_readv(bs->file, sector_num, qiov, nb_sectors, cb, opaque);
 }
 
-static int coroutine_fn
-blkdebug_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
-                    QEMUIOVector *qiov, int flags)
+static BlockAIOCB *blkdebug_aio_writev(BlockDriverState *bs,
+    int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
+    BlockCompletionFunc *cb, void *opaque)
 {
-    int err;
+    BDRVBlkdebugState *s = bs->opaque;
+    BlkdebugRule *rule = NULL;
 
-    /* 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);
+    QSIMPLEQ_FOREACH(rule, &s->active_rules, active_next) {
+        if (rule->options.inject.sector == -1 ||
+            (rule->options.inject.sector >= sector_num &&
+             rule->options.inject.sector < sector_num + nb_sectors)) {
+            break;
+        }
     }
 
-    err = rule_check(bs, offset, bytes);
-    if (err) {
-        return err;
+    if (rule && rule->options.inject.error) {
+        return inject_error(bs, cb, opaque, rule);
     }
 
-    return bdrv_co_pwritev(bs->file, offset, bytes, qiov, flags);
+    return bdrv_aio_writev(bs->file, sector_num, qiov, nb_sectors, cb, opaque);
 }
 
-static int blkdebug_co_flush(BlockDriverState *bs)
+static BlockAIOCB *blkdebug_aio_flush(BlockDriverState *bs,
+    BlockCompletionFunc *cb, void *opaque)
 {
-    int err = rule_check(bs, 0, 0);
+    BDRVBlkdebugState *s = bs->opaque;
+    BlkdebugRule *rule = NULL;
 
-    if (err) {
-        return err;
+    QSIMPLEQ_FOREACH(rule, &s->active_rules, active_next) {
+        if (rule->options.inject.sector == -1) {
+            break;
+        }
     }
 
-    return bdrv_co_flush(bs->file->bs);
+    if (rule && rule->options.inject.error) {
+        return inject_error(bs, cb, opaque, rule);
+    }
+
+    return bdrv_aio_flush(bs->file, cb, opaque);
 }
 
-static int coroutine_fn blkdebug_co_pwrite_zeroes(BlockDriverState *bs,
-                                                  int64_t offset, int bytes,
-                                                  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 (bytes < align) {
-        assert(QEMU_IS_ALIGNED(offset, align) ||
-               QEMU_IS_ALIGNED(offset + bytes, align) ||
-               DIV_ROUND_UP(offset, align) ==
-               DIV_ROUND_UP(offset + bytes, align));
-        return -ENOTSUP;
-    }
-    assert(QEMU_IS_ALIGNED(offset, align));
-    assert(QEMU_IS_ALIGNED(bytes, align));
-    if (bs->bl.max_pwrite_zeroes) {
-        assert(bytes <= bs->bl.max_pwrite_zeroes);
-    }
-
-    err = rule_check(bs, offset, bytes);
-    if (err) {
-        return err;
-    }
-
-    return bdrv_co_pwrite_zeroes(bs->file, offset, bytes, flags);
-}
-
-static int coroutine_fn blkdebug_co_pdiscard(BlockDriverState *bs,
-                                             int64_t offset, int bytes)
-{
-    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 (bytes < bs->bl.request_alignment) {
-        assert(QEMU_IS_ALIGNED(offset, align) ||
-               QEMU_IS_ALIGNED(offset + bytes, align) ||
-               DIV_ROUND_UP(offset, align) ==
-               DIV_ROUND_UP(offset + bytes, align));
-        return -ENOTSUP;
-    }
-    assert(QEMU_IS_ALIGNED(offset, bs->bl.request_alignment));
-    assert(QEMU_IS_ALIGNED(bytes, bs->bl.request_alignment));
-    if (align && bytes >= align) {
-        assert(QEMU_IS_ALIGNED(offset, align));
-        assert(QEMU_IS_ALIGNED(bytes, align));
-    }
-    if (bs->bl.max_pdiscard) {
-        assert(bytes <= bs->bl.max_pdiscard);
-    }
-
-    err = rule_check(bs, offset, bytes);
-    if (err) {
-        return err;
-    }
-
-    return bdrv_co_pdiscard(bs->file->bs, offset, bytes);
-}
 
 static void blkdebug_close(BlockDriverState *bs)
 {
@@ -634,13 +563,11 @@ static void blkdebug_close(BlockDriverState *bs)
     BlkdebugRule *rule, *next;
     int i;
 
-    for (i = 0; i < BLKDBG__MAX; i++) {
+    for (i = 0; i < BLKDBG_EVENT_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)
@@ -656,13 +583,9 @@ static void suspend_request(BlockDriverState *bs, BlkdebugRule *rule)
     remove_rule(rule);
     QLIST_INSERT_HEAD(&s->suspended_reqs, &r, next);
 
-    if (!qtest_enabled()) {
-        printf("blkdebug: Suspended request '%s'\n", r.tag);
-    }
+    printf("blkdebug: Suspended request '%s'\n", r.tag);
     qemu_coroutine_yield();
-    if (!qtest_enabled()) {
-        printf("blkdebug: Resuming request '%s'\n", r.tag);
-    }
+    printf("blkdebug: Resuming request '%s'\n", r.tag);
 
     QLIST_REMOVE(&r, next);
     g_free(r.tag);
@@ -699,13 +622,13 @@ static bool process_rule(BlockDriverState *bs, struct BlkdebugRule *rule,
     return injected;
 }
 
-static void blkdebug_debug_event(BlockDriverState *bs, BlkdebugEvent event)
+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);
+    assert((int)event >= 0 && event < BLKDBG_EVENT_MAX);
 
     injected = false;
     s->new_state = s->state;
@@ -720,13 +643,13 @@ static int blkdebug_debug_breakpoint(BlockDriverState *bs, const char *event,
 {
     BDRVBlkdebugState *s = bs->opaque;
     struct BlkdebugRule *rule;
-    int blkdebug_event;
+    BlkDebugEvent blkdebug_event;
 
-    blkdebug_event = qapi_enum_parse(&BlkdebugEvent_lookup, event, -1, NULL);
-    if (blkdebug_event < 0) {
+    if (get_event_by_name(event, &blkdebug_event) < 0) {
         return -ENOENT;
     }
 
+
     rule = g_malloc(sizeof(*rule));
     *rule = (struct BlkdebugRule) {
         .event  = blkdebug_event,
@@ -747,7 +670,7 @@ static int blkdebug_debug_resume(BlockDriverState *bs, const char *tag)
 
     QLIST_FOREACH_SAFE(r, &s->suspended_reqs, next, next) {
         if (!strcmp(r->tag, tag)) {
-            qemu_coroutine_enter(r->co);
+            qemu_coroutine_enter(r->co, NULL);
             return 0;
         }
     }
@@ -762,7 +685,7 @@ static int blkdebug_debug_remove_breakpoint(BlockDriverState *bs,
     BlkdebugRule *rule, *next;
     int i, ret = -ENOENT;
 
-    for (i = 0; i < BLKDBG__MAX; i++) {
+    for (i = 0; i < BLKDBG_EVENT_MAX; i++) {
         QLIST_FOREACH_SAFE(rule, &s->rules[i], next, next) {
             if (rule->action == ACTION_SUSPEND &&
                 !strcmp(rule->options.suspend.tag, tag)) {
@@ -773,7 +696,7 @@ static int blkdebug_debug_remove_breakpoint(BlockDriverState *bs,
     }
     QLIST_FOREACH_SAFE(r, &s->suspended_reqs, next, r_next) {
         if (!strcmp(r->tag, tag)) {
-            qemu_coroutine_enter(r->co);
+            qemu_coroutine_enter(r->co, NULL);
             ret = 0;
         }
     }
@@ -795,49 +718,50 @@ static bool blkdebug_debug_is_suspended(BlockDriverState *bs, const char *tag)
 
 static int64_t blkdebug_getlength(BlockDriverState *bs)
 {
-    return bdrv_getlength(bs->file->bs);
+    return bdrv_getlength(bs->file);
 }
 
-static void blkdebug_refresh_filename(BlockDriverState *bs, QDict *options)
+static void blkdebug_refresh_filename(BlockDriverState *bs)
 {
-    BDRVBlkdebugState *s = bs->opaque;
     QDict *opts;
     const QDictEntry *e;
     bool force_json = false;
 
-    for (e = qdict_first(options); e; e = qdict_next(options, e)) {
+    for (e = qdict_first(bs->options); e; e = qdict_next(bs->options, e)) {
         if (strcmp(qdict_entry_key(e), "config") &&
-            strcmp(qdict_entry_key(e), "x-image"))
+            strcmp(qdict_entry_key(e), "x-image") &&
+            strcmp(qdict_entry_key(e), "image") &&
+            strncmp(qdict_entry_key(e), "image.", strlen("image.")))
         {
             force_json = true;
             break;
         }
     }
 
-    if (force_json && !bs->file->bs->full_open_options) {
+    if (force_json && !bs->file->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]) {
-        int ret = snprintf(bs->exact_filename, sizeof(bs->exact_filename),
-                           "blkdebug:%s:%s", s->config_file ?: "",
-                           bs->file->bs->exact_filename);
-        if (ret >= sizeof(bs->exact_filename)) {
-            /* An overflow makes the filename unusable, so do not report any */
-            bs->exact_filename[0] = 0;
-        }
+    if (!force_json && bs->file->exact_filename[0]) {
+        snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+                 "blkdebug:%s:%s",
+                 qdict_get_try_str(bs->options, "config") ?: "",
+                 bs->file->exact_filename);
     }
 
     opts = qdict_new();
-    qdict_put_str(opts, "driver", "blkdebug");
+    qdict_put_obj(opts, "driver", QOBJECT(qstring_from_str("blkdebug")));
 
-    QINCREF(bs->file->bs->full_open_options);
-    qdict_put(opts, "image", bs->file->bs->full_open_options);
+    QINCREF(bs->file->full_open_options);
+    qdict_put_obj(opts, "image", QOBJECT(bs->file->full_open_options));
 
-    for (e = qdict_first(options); e; e = qdict_next(options, e)) {
-        if (strcmp(qdict_entry_key(e), "x-image")) {
+    for (e = qdict_first(bs->options); e; e = qdict_next(bs->options, e)) {
+        if (strcmp(qdict_entry_key(e), "x-image") &&
+            strcmp(qdict_entry_key(e), "image") &&
+            strncmp(qdict_entry_key(e), "image.", strlen("image.")))
+        {
             qobject_incref(qdict_entry_value(e));
             qdict_put_obj(opts, qdict_entry_key(e), qdict_entry_value(e));
         }
@@ -846,58 +770,20 @@ static void blkdebug_refresh_filename(BlockDriverState *bs, QDict *options)
     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),
-    .is_filter              = true,
 
     .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_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_co_get_block_status = bdrv_co_get_block_status_from_file,
+    .bdrv_aio_readv         = blkdebug_aio_readv,
+    .bdrv_aio_writev        = blkdebug_aio_writev,
+    .bdrv_aio_flush         = blkdebug_aio_flush,
 
     .bdrv_debug_event           = blkdebug_debug_event,
     .bdrv_debug_breakpoint      = blkdebug_debug_breakpoint,

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 bytes, BdrvRequestFlags flags)
-{
-    uint64_t reqid = blkreplay_next_id();
-    int ret = bdrv_co_pwrite_zeroes(bs->file, offset, bytes, 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 bytes)
-{
-    uint64_t reqid = blkreplay_next_id();
-    int ret = bdrv_co_pdiscard(bs->file->bs, offset, bytes);
-    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

@@ -7,48 +7,49 @@
  * See the COPYING file in the top-level directory.
  */
 
-#include "qemu/osdep.h"
-#include "qapi/error.h"
+#include <stdarg.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;
+    BlockDriverState *test_file;
 } BDRVBlkverifyState;
 
-typedef struct BlkverifyRequest {
-    Coroutine *co;
-    BlockDriverState *bs;
+typedef struct BlkverifyAIOCB BlkverifyAIOCB;
+struct BlkverifyAIOCB {
+    BlockAIOCB common;
+    QEMUBH *bh;
 
     /* 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 */
+    int64_t sector_num;
+    int nb_sectors;
 
+    int ret;                    /* first completed request's result */
     unsigned int done;          /* completion counter */
 
     QEMUIOVector *qiov;         /* user I/O vector */
-    QEMUIOVector *raw_qiov;     /* cloned I/O vector for raw file */
-} BlkverifyRequest;
+    QEMUIOVector raw_qiov;      /* cloned I/O vector for raw file */
+    void *buf;                  /* buffer for raw file I/O */
 
-static void GCC_FMT_ATTR(2, 3) blkverify_err(BlkverifyRequest *r,
+    void (*verify)(BlkverifyAIOCB *acb);
+};
+
+static const AIOCBInfo blkverify_aiocb_info = {
+    .aiocb_size         = sizeof(BlkverifyAIOCB),
+};
+
+static void GCC_FMT_ATTR(2, 3) blkverify_err(BlkverifyAIOCB *acb,
                                              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);
+    fprintf(stderr, "blkverify: %s sector_num=%" PRId64 " nb_sectors=%d ",
+            acb->is_write ? "write" : "read", acb->sector_num,
+            acb->nb_sectors);
     vfprintf(stderr, fmt, ap);
     fprintf(stderr, "\n");
     va_end(ap);
@@ -67,7 +68,7 @@ static void blkverify_parse_filename(const char *filename, QDict *options,
     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);
+        qdict_put(options, "x-image", qstring_from_str(filename));
         return;
     }
 
@@ -84,7 +85,7 @@ static void blkverify_parse_filename(const char *filename, QDict *options,
 
     /* TODO Allow multi-level nesting and set file.filename here */
     filename = c + 1;
-    qdict_put_str(options, "x-image", filename);
+    qdict_put(options, "x-image", qstring_from_str(filename));
 }
 
 static QemuOptsList runtime_opts = {
@@ -122,21 +123,21 @@ static int blkverify_open(BlockDriverState *bs, QDict *options, int flags,
     }
 
     /* 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;
+    assert(bs->file == NULL);
+    ret = bdrv_open_image(&bs->file, qemu_opt_get(opts, "x-raw"), options,
+                          "raw", flags | BDRV_O_PROTOCOL, false, &local_err);
+    if (ret < 0) {
         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;
+    assert(s->test_file == NULL);
+    ret = bdrv_open_image(&s->test_file, qemu_opt_get(opts, "x-image"), options,
+                          "test", flags, false, &local_err);
+    if (ret < 0) {
         error_propagate(errp, local_err);
+        s->test_file = NULL;
         goto fail;
     }
 
@@ -150,7 +151,7 @@ static void blkverify_close(BlockDriverState *bs)
 {
     BDRVBlkverifyState *s = bs->opaque;
 
-    bdrv_unref_child(bs, s->test_file);
+    bdrv_unref(s->test_file);
     s->test_file = NULL;
 }
 
@@ -158,109 +159,119 @@ static int64_t blkverify_getlength(BlockDriverState *bs)
 {
     BDRVBlkverifyState *s = bs->opaque;
 
-    return bdrv_getlength(s->test_file->bs);
+    return bdrv_getlength(s->test_file);
 }
 
-static void coroutine_fn blkverify_do_test_req(void *opaque)
+static BlkverifyAIOCB *blkverify_aio_get(BlockDriverState *bs, bool is_write,
+                                         int64_t sector_num, QEMUIOVector *qiov,
+                                         int nb_sectors,
+                                         BlockCompletionFunc *cb,
+                                         void *opaque)
 {
-    BlkverifyRequest *r = opaque;
-    BDRVBlkverifyState *s = r->bs->opaque;
+    BlkverifyAIOCB *acb = qemu_aio_get(&blkverify_aiocb_info, bs, cb, 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);
+    acb->bh = NULL;
+    acb->is_write = is_write;
+    acb->sector_num = sector_num;
+    acb->nb_sectors = nb_sectors;
+    acb->ret = -EINPROGRESS;
+    acb->done = 0;
+    acb->qiov = qiov;
+    acb->buf = NULL;
+    acb->verify = NULL;
+    return acb;
 }
 
-static void coroutine_fn blkverify_do_raw_req(void *opaque)
+static void blkverify_aio_bh(void *opaque)
 {
-    BlkverifyRequest *r = opaque;
+    BlkverifyAIOCB *acb = 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();
+    qemu_bh_delete(acb->bh);
+    if (acb->buf) {
+        qemu_iovec_destroy(&acb->raw_qiov);
+        qemu_vfree(acb->buf);
     }
-
-    if (r->ret != r->raw_ret) {
-        blkverify_err(r, "return value mismatch %d != %d", r->ret, r->raw_ret);
-    }
-
-    return r->ret;
+    acb->common.cb(acb->common.opaque, acb->ret);
+    qemu_aio_unref(acb);
 }
 
-static int coroutine_fn
-blkverify_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
-                    QEMUIOVector *qiov, int flags)
+static void blkverify_aio_cb(void *opaque, int ret)
 {
-    BlkverifyRequest r;
-    QEMUIOVector raw_qiov;
-    void *buf;
-    ssize_t cmp_offset;
-    int ret;
+    BlkverifyAIOCB *acb = opaque;
 
-    buf = qemu_blockalign(bs->file->bs, qiov->size);
-    qemu_iovec_init(&raw_qiov, qiov->niov);
-    qemu_iovec_clone(&raw_qiov, qiov, buf);
+    switch (++acb->done) {
+    case 1:
+        acb->ret = ret;
+        break;
 
-    ret = blkverify_co_prwv(bs, &r, offset, bytes, qiov, &raw_qiov, flags,
-                            false);
+    case 2:
+        if (acb->ret != ret) {
+            blkverify_err(acb, "return value mismatch %d != %d", acb->ret, ret);
+        }
 
-    cmp_offset = qemu_iovec_compare(qiov, &raw_qiov);
-    if (cmp_offset != -1) {
-        blkverify_err(&r, "contents mismatch at offset %" PRId64,
-                      offset + cmp_offset);
+        if (acb->verify) {
+            acb->verify(acb);
+        }
+
+        acb->bh = aio_bh_new(bdrv_get_aio_context(acb->common.bs),
+                             blkverify_aio_bh, acb);
+        qemu_bh_schedule(acb->bh);
+        break;
     }
-
-    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)
+static void blkverify_verify_readv(BlkverifyAIOCB *acb)
 {
-    BlkverifyRequest r;
-    return blkverify_co_prwv(bs, &r, offset, bytes, qiov, qiov, flags, true);
+    ssize_t offset = qemu_iovec_compare(acb->qiov, &acb->raw_qiov);
+    if (offset != -1) {
+        blkverify_err(acb, "contents mismatch in sector %" PRId64,
+                      acb->sector_num + (int64_t)(offset / BDRV_SECTOR_SIZE));
+    }
 }
 
-static int blkverify_co_flush(BlockDriverState *bs)
+static BlockAIOCB *blkverify_aio_readv(BlockDriverState *bs,
+        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
+        BlockCompletionFunc *cb, void *opaque)
+{
+    BDRVBlkverifyState *s = bs->opaque;
+    BlkverifyAIOCB *acb = blkverify_aio_get(bs, false, sector_num, qiov,
+                                            nb_sectors, cb, opaque);
+
+    acb->verify = blkverify_verify_readv;
+    acb->buf = qemu_blockalign(bs->file, qiov->size);
+    qemu_iovec_init(&acb->raw_qiov, acb->qiov->niov);
+    qemu_iovec_clone(&acb->raw_qiov, qiov, acb->buf);
+
+    bdrv_aio_readv(s->test_file, sector_num, qiov, nb_sectors,
+                   blkverify_aio_cb, acb);
+    bdrv_aio_readv(bs->file, sector_num, &acb->raw_qiov, nb_sectors,
+                   blkverify_aio_cb, acb);
+    return &acb->common;
+}
+
+static BlockAIOCB *blkverify_aio_writev(BlockDriverState *bs,
+        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
+        BlockCompletionFunc *cb, void *opaque)
+{
+    BDRVBlkverifyState *s = bs->opaque;
+    BlkverifyAIOCB *acb = blkverify_aio_get(bs, true, sector_num, qiov,
+                                            nb_sectors, cb, opaque);
+
+    bdrv_aio_writev(s->test_file, sector_num, qiov, nb_sectors,
+                    blkverify_aio_cb, acb);
+    bdrv_aio_writev(bs->file, sector_num, qiov, nb_sectors,
+                    blkverify_aio_cb, acb);
+    return &acb->common;
+}
+
+static BlockAIOCB *blkverify_aio_flush(BlockDriverState *bs,
+                                       BlockCompletionFunc *cb,
+                                       void *opaque)
 {
     BDRVBlkverifyState *s = bs->opaque;
 
     /* Only flush test file, the raw file is not important */
-    return bdrv_co_flush(s->test_file->bs);
+    return bdrv_aio_flush(s->test_file, cb, opaque);
 }
 
 static bool blkverify_recurse_is_first_non_filter(BlockDriverState *bs,
@@ -268,47 +279,54 @@ static bool blkverify_recurse_is_first_non_filter(BlockDriverState *bs,
 {
     BDRVBlkverifyState *s = bs->opaque;
 
-    bool perm = bdrv_recurse_is_first_non_filter(bs->file->bs, candidate);
+    bool perm = bdrv_recurse_is_first_non_filter(bs->file, candidate);
 
     if (perm) {
         return true;
     }
 
-    return bdrv_recurse_is_first_non_filter(s->test_file->bs, candidate);
+    return bdrv_recurse_is_first_non_filter(s->test_file, candidate);
 }
 
-static void blkverify_refresh_filename(BlockDriverState *bs, QDict *options)
+/* Propagate AioContext changes to ->test_file */
+static void blkverify_detach_aio_context(BlockDriverState *bs)
 {
     BDRVBlkverifyState *s = bs->opaque;
 
-    /* bs->file->bs has already been refreshed */
-    bdrv_refresh_filename(s->test_file->bs);
+    bdrv_detach_aio_context(s->test_file);
+}
 
-    if (bs->file->bs->full_open_options
-        && s->test_file->bs->full_open_options)
-    {
+static void blkverify_attach_aio_context(BlockDriverState *bs,
+                                         AioContext *new_context)
+{
+    BDRVBlkverifyState *s = bs->opaque;
+
+    bdrv_attach_aio_context(s->test_file, new_context);
+}
+
+static void blkverify_refresh_filename(BlockDriverState *bs)
+{
+    BDRVBlkverifyState *s = bs->opaque;
+
+    /* bs->file has already been refreshed */
+    bdrv_refresh_filename(s->test_file);
+
+    if (bs->file->full_open_options && s->test_file->full_open_options) {
         QDict *opts = qdict_new();
-        qdict_put_str(opts, "driver", "blkverify");
+        qdict_put_obj(opts, "driver", QOBJECT(qstring_from_str("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);
+        QINCREF(bs->file->full_open_options);
+        qdict_put_obj(opts, "raw", QOBJECT(bs->file->full_open_options));
+        QINCREF(s->test_file->full_open_options);
+        qdict_put_obj(opts, "test", QOBJECT(s->test_file->full_open_options));
 
         bs->full_open_options = opts;
     }
 
-    if (bs->file->bs->exact_filename[0]
-        && s->test_file->bs->exact_filename[0])
-    {
-        int ret = snprintf(bs->exact_filename, sizeof(bs->exact_filename),
-                           "blkverify:%s:%s",
-                           bs->file->bs->exact_filename,
-                           s->test_file->bs->exact_filename);
-        if (ret >= sizeof(bs->exact_filename)) {
-            /* An overflow makes the filename unusable, so do not report any */
-            bs->exact_filename[0] = 0;
-        }
+    if (bs->file->exact_filename[0] && s->test_file->exact_filename[0]) {
+        snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+                 "blkverify:%s:%s",
+                 bs->file->exact_filename, s->test_file->exact_filename);
     }
 }
 
@@ -320,13 +338,15 @@ static BlockDriver bdrv_blkverify = {
     .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,
+    .bdrv_aio_readv                   = blkverify_aio_readv,
+    .bdrv_aio_writev                  = blkverify_aio_writev,
+    .bdrv_aio_flush                   = blkverify_aio_flush,
+
+    .bdrv_attach_aio_context          = blkverify_attach_aio_context,
+    .bdrv_detach_aio_context          = blkverify_detach_aio_context,
 
     .is_filter                        = true,
     .bdrv_recurse_is_first_non_filter = blkverify_recurse_is_first_non_filter,

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"
 
 /**************************************************************/
 
@@ -104,16 +101,7 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags,
     struct bochs_header bochs;
     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); /* 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) {
@@ -197,11 +185,6 @@ fail:
     return ret;
 }
 
-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)
 {
     BDRVBochsState *s = bs->opaque;
@@ -236,52 +219,38 @@ static int64_t seek_to_sector(BlockDriverState *bs, int64_t sector_num)
     return bitmap_offset + (512 * (s->bitmap_blocks + extent_offset));
 }
 
-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);
+            return block_offset;
+        } else if (block_offset > 0) {
+            ret = bdrv_pread(bs->file, block_offset, buf, 512);
             if (ret < 0) {
-                goto fail;
+                return ret;
             }
         } else {
-            qemu_iovec_memset(&local_qiov, 0, 0, 512);
+            memset(buf, 0, 512);
         }
         nb_sectors--;
         sector_num++;
-        bytes_done += 512;
+        buf += 512;
     }
+    return 0;
+}
 
-    ret = 0;
-fail:
+static coroutine_fn int bochs_co_read(BlockDriverState *bs, int64_t sector_num,
+                                      uint8_t *buf, int nb_sectors)
+{
+    int ret;
+    BDRVBochsState *s = bs->opaque;
+    qemu_co_mutex_lock(&s->lock);
+    ret = bochs_read(bs, sector_num, buf, nb_sectors);
     qemu_co_mutex_unlock(&s->lock);
-    qemu_iovec_destroy(&local_qiov);
-
     return ret;
 }
 
@@ -296,9 +265,7 @@ 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_co_read,
     .bdrv_close		= bochs_close,
 };
 

block/cloop.c

@@ -21,12 +21,9 @@
  * 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 <zlib.h>
 
 /* Maximum compressed block size */
@@ -66,16 +63,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
     uint32_t offsets_size, max_compressed_block_size = 1, i;
     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;
-    }
+    bs->read_only = 1;
 
     /* read header */
     ret = bdrv_pread(bs->file, 128, &s->block_size, 4);
@@ -207,11 +195,6 @@ fail:
     return ret;
 }
 
-static void cloop_refresh_limits(BlockDriverState *bs, Error **errp)
-{
-    bs->bl.request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O */
-}
-
 static inline int cloop_read_block(BlockDriverState *bs, int block_num)
 {
     BDRVCloopState *s = bs->opaque;
@@ -220,8 +203,8 @@ static inline int cloop_read_block(BlockDriverState *bs, int 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);
+        ret = bdrv_pread(bs->file, s->offsets[block_num], s->compressed_block,
+                         bytes);
         if (ret != bytes) {
             return -1;
         }
@@ -244,38 +227,33 @@ static inline int cloop_read_block(BlockDriverState *bs, int 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;
-
-    assert((offset & (BDRV_SECTOR_SIZE - 1)) == 0);
-    assert((bytes & (BDRV_SECTOR_SIZE - 1)) == 0);
-
-    qemu_co_mutex_lock(&s->lock);
+    int i;
 
     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;
+            return -1;
         }
-
-        data = s->uncompressed_block + sector_offset_in_block * 512;
-        qemu_iovec_from_buf(qiov, i * 512, data, 512);
+        memcpy(buf + i * 512,
+            s->uncompressed_block + sector_offset_in_block * 512, 512);
     }
+    return 0;
+}
 
-    ret = 0;
-fail:
+static coroutine_fn int cloop_co_read(BlockDriverState *bs, int64_t sector_num,
+                                      uint8_t *buf, int nb_sectors)
+{
+    int ret;
+    BDRVCloopState *s = bs->opaque;
+    qemu_co_mutex_lock(&s->lock);
+    ret = cloop_read(bs, sector_num, buf, nb_sectors);
     qemu_co_mutex_unlock(&s->lock);
-
     return ret;
 }
 
@@ -293,9 +271,7 @@ static BlockDriver bdrv_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_read      = cloop_co_read,
     .bdrv_close     = cloop_close,
 };
 

block/commit.c

@@ -12,15 +12,10 @@
  *
  */
 
-#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 "block/blockjob.h"
 #include "qemu/ratelimit.h"
-#include "sysemu/block-backend.h"
 
 enum {
     /*
@@ -37,36 +32,28 @@ typedef struct CommitBlockJob {
     BlockJob common;
     RateLimit limit;
     BlockDriverState *active;
-    BlockDriverState *commit_top_bs;
-    BlockBackend *top;
-    BlockBackend *base;
+    BlockDriverState *top;
+    BlockDriverState *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 offset, uint64_t bytes,
+static int coroutine_fn commit_populate(BlockDriverState *bs,
+                                        BlockDriverState *base,
+                                        int64_t sector_num, int nb_sectors,
                                         void *buf)
 {
     int ret = 0;
-    QEMUIOVector qiov;
-    struct iovec iov = {
-        .iov_base = buf,
-        .iov_len = bytes,
-    };
 
-    assert(bytes < SIZE_MAX);
-    qemu_iovec_init_external(&qiov, &iov, 1);
-
-    ret = blk_co_preadv(bs, offset, qiov.size, &qiov, 0);
-    if (ret < 0) {
+    ret = bdrv_read(bs, sector_num, buf, nb_sectors);
+    if (ret) {
         return ret;
     }
 
-    ret = blk_co_pwritev(base, offset, qiov.size, &qiov, 0);
-    if (ret < 0) {
+    ret = bdrv_write(base, sector_num, buf, nb_sectors);
+    if (ret) {
         return ret;
     }
 
@@ -82,31 +69,14 @@ 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);
+    BlockDriverState *top = s->top;
+    BlockDriverState *base = s->base;
+    BlockDriverState *overlay_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);
-    if (overlay_bs) {
-        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;
+        ret = bdrv_drop_intermediate(active, top, base, s->backing_file_str);
     }
 
     /* restore base open flags here if appropriate (e.g., change the base back
@@ -115,67 +85,55 @@ static void commit_complete(BlockJob *job, void *opaque)
     if (s->base_flags != bdrv_get_flags(base)) {
         bdrv_reopen(base, s->base_flags, NULL);
     }
+    overlay_bs = bdrv_find_overlay(active, top);
     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);
-
-    /* If there is more than one reference to the job (e.g. if called from
-     * block_job_finish_sync()), block_job_completed() won't free it and
-     * therefore the blockers on the intermediate nodes remain. This would
-     * cause bdrv_set_backing_hd() to fail. */
-    block_job_remove_all_bdrv(job);
-
     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 offset;
-    uint64_t delay_ns = 0;
+    BlockDriverState *top = s->top;
+    BlockDriverState *base = s->base;
+    int64_t sector_num, end;
     int ret = 0;
-    int64_t n = 0; /* bytes */
+    int n = 0;
     void *buf = NULL;
     int bytes_written = 0;
     int64_t base_len;
 
-    ret = s->common.len = blk_getlength(s->top);
+    ret = s->common.len = bdrv_getlength(top);
+
 
     if (s->common.len < 0) {
         goto out;
     }
 
-    ret = base_len = blk_getlength(s->base);
+    ret = base_len = bdrv_getlength(base);
     if (base_len < 0) {
         goto out;
     }
 
     if (base_len < s->common.len) {
-        ret = blk_truncate(s->base, s->common.len, PREALLOC_MODE_OFF, NULL);
+        ret = bdrv_truncate(base, s->common.len);
         if (ret) {
             goto out;
         }
     }
 
-    buf = blk_blockalign(s->top, COMMIT_BUFFER_SIZE);
+    end = s->common.len >> BDRV_SECTOR_BITS;
+    buf = qemu_blockalign(top, COMMIT_BUFFER_SIZE);
 
-    for (offset = 0; offset < s->common.len; offset += n) {
+    for (sector_num = 0; sector_num < end; sector_num += n) {
+        uint64_t delay_ns = 0;
         bool copy;
 
+wait:
         /* 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.
          */
@@ -184,18 +142,25 @@ static void coroutine_fn commit_run(void *opaque)
             break;
         }
         /* Copy if allocated above the base */
-        ret = bdrv_is_allocated_above(blk_bs(s->top), blk_bs(s->base),
-                                      offset, COMMIT_BUFFER_SIZE, &n);
+        ret = bdrv_is_allocated_above(top, base, sector_num,
+                                      COMMIT_BUFFER_SIZE / BDRV_SECTOR_SIZE,
+                                      &n);
         copy = (ret == 1);
-        trace_commit_one_iteration(s, offset, n, ret);
+        trace_commit_one_iteration(s, sector_num, n, ret);
         if (copy) {
-            ret = commit_populate(s->top, s->base, offset, n, buf);
-            bytes_written += n;
+            if (s->common.speed) {
+                delay_ns = ratelimit_calculate_delay(&s->limit, n);
+                if (delay_ns > 0) {
+                    goto wait;
+                }
+            }
+            ret = commit_populate(top, 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) {
+            if (s->on_error == BLOCKDEV_ON_ERROR_STOP ||
+                s->on_error == BLOCKDEV_ON_ERROR_REPORT||
+                (s->on_error == BLOCKDEV_ON_ERROR_ENOSPC && ret == -ENOSPC)) {
                 goto out;
             } else {
                 n = 0;
@@ -203,11 +168,7 @@ static void coroutine_fn commit_run(void *opaque)
             }
         }
         /* Publish progress */
-        s->common.offset += n;
-
-        if (copy && s->common.speed) {
-            delay_ns = ratelimit_calculate_delay(&s->limit, n);
-        }
+        s->common.offset += n * BDRV_SECTOR_SIZE;
     }
 
     ret = 0;
@@ -225,70 +186,36 @@ 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");
+        error_set(errp, QERR_INVALID_PARAMETER, "speed");
         return;
     }
-    ratelimit_set_speed(&s->limit, speed, SLICE_TIME);
+    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 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_co_get_block_status_from_backing,
-    .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)
+void commit_start(BlockDriverState *bs, BlockDriverState *base,
+                  BlockDriverState *top, int64_t speed,
+                  BlockdevOnError on_error, BlockCompletionFunc *cb,
+                  void *opaque, const char *backing_file_str, 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;
+
+    if ((on_error == BLOCKDEV_ON_ERROR_STOP ||
+         on_error == BLOCKDEV_ON_ERROR_ENOSPC) &&
+        !bdrv_iostatus_is_enabled(bs)) {
+        error_setg(errp, "Invalid parameter combination");
+        return;
+    }
 
     assert(top != bs);
     if (top == base) {
@@ -303,110 +230,34 @@ void commit_start(const char *job_id, BlockDriverState *bs,
         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,
+        reopen_queue = bdrv_reopen_queue(reopen_queue, base,
                                          orig_base_flags | BDRV_O_RDWR);
     }
     if (!(orig_overlay_flags & BDRV_O_RDWR)) {
-        reopen_queue = bdrv_reopen_queue(reopen_queue, overlay_bs, NULL,
+        reopen_queue = bdrv_reopen_queue(reopen_queue, overlay_bs,
                                          orig_overlay_flags | BDRV_O_RDWR);
     }
     if (reopen_queue) {
-        bdrv_reopen_multiple(bdrv_get_aio_context(bs), reopen_queue, &local_err);
+        bdrv_reopen_multiple(reopen_queue, &local_err);
         if (local_err != NULL) {
             error_propagate(errp, local_err);
-            goto fail;
+            return;
         }
     }
 
-    /* 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;
-    }
-    if (!filter_node_name) {
-        commit_top_bs->implicit = true;
-    }
-    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 = block_job_create(&commit_job_driver, bs, speed, cb, opaque, errp);
+    if (!s) {
+        return;
     }
 
+    s->base   = base;
+    s->top    = top;
     s->active = bs;
 
     s->base_flags          = orig_base_flags;
@@ -415,169 +266,8 @@ void commit_start(const char *job_id, BlockDriverState *bs,
     s->backing_file_str = g_strdup(backing_file_str);
 
     s->on_error = on_error;
+    s->common.co = qemu_coroutine_create(commit_run);
 
-    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_SIZE (2048 * BDRV_SECTOR_SIZE)
-
-/* 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 offset, length, backing_length;
-    int ro, open_flags;
-    int64_t n;
-    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, PREALLOC_MODE_OFF, &local_err);
-        if (ret < 0) {
-            error_report_err(local_err);
-            goto ro_cleanup;
-        }
-    }
-
-    /* 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_SIZE);
-    if (buf == NULL) {
-        ret = -ENOMEM;
-        goto ro_cleanup;
-    }
-
-    for (offset = 0; offset < length; offset += n) {
-        ret = bdrv_is_allocated(bs, offset, COMMIT_BUF_SIZE, &n);
-        if (ret < 0) {
-            goto ro_cleanup;
-        }
-        if (ret) {
-            ret = blk_pread(src, offset, buf, n);
-            if (ret < 0) {
-                goto ro_cleanup;
-            }
-
-            ret = blk_pwrite(backing, offset, buf, n, 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;
+    trace_commit_start(bs, base, top, s, s->common.co, opaque);
+    qemu_coroutine_enter(s->common.co, s);
 }

block/crypto.c

@@ -1,628 +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/qobject-input-visitor.h"
-#include "qapi-visit.h"
-#include "qapi/error.h"
-#include "block/crypto.h"
-
-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 = {
-        BLOCK_CRYPTO_OPT_DEF_LUKS_KEY_SECRET(""),
-        { /* 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"
-        },
-        BLOCK_CRYPTO_OPT_DEF_LUKS_KEY_SECRET(""),
-        BLOCK_CRYPTO_OPT_DEF_LUKS_CIPHER_ALG(""),
-        BLOCK_CRYPTO_OPT_DEF_LUKS_CIPHER_MODE(""),
-        BLOCK_CRYPTO_OPT_DEF_LUKS_IVGEN_ALG(""),
-        BLOCK_CRYPTO_OPT_DEF_LUKS_IVGEN_HASH_ALG(""),
-        BLOCK_CRYPTO_OPT_DEF_LUKS_HASH_ALG(""),
-        BLOCK_CRYPTO_OPT_DEF_LUKS_ITER_TIME(""),
-        { /* end of list */ }
-    },
-};
-
-
-QCryptoBlockOpenOptions *
-block_crypto_open_opts_init(QCryptoBlockFormat format,
-                            QDict *opts,
-                            Error **errp)
-{
-    Visitor *v;
-    QCryptoBlockOpenOptions *ret = NULL;
-    Error *local_err = NULL;
-
-    ret = g_new0(QCryptoBlockOpenOptions, 1);
-    ret->format = format;
-
-    v = qobject_input_visitor_new_keyval(QOBJECT(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;
-
-    case Q_CRYPTO_BLOCK_FORMAT_QCOW:
-        visit_type_QCryptoBlockOptionsQCow_members(
-            v, &ret->u.qcow, &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;
-}
-
-
-QCryptoBlockCreateOptions *
-block_crypto_create_opts_init(QCryptoBlockFormat format,
-                              QDict *opts,
-                              Error **errp)
-{
-    Visitor *v;
-    QCryptoBlockCreateOptions *ret = NULL;
-    Error *local_err = NULL;
-
-    ret = g_new0(QCryptoBlockCreateOptions, 1);
-    ret->format = format;
-
-    v = qobject_input_visitor_new_keyval(QOBJECT(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;
-
-    case Q_CRYPTO_BLOCK_FORMAT_QCOW:
-        visit_type_QCryptoBlockOptionsQCow_members(
-            v, &ret->u.qcow, &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;
-    QDict *cryptoopts = NULL;
-
-    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;
-    }
-
-    cryptoopts = qemu_opts_to_qdict(opts, NULL);
-
-    open_opts = block_crypto_open_opts_init(format, cryptoopts, 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, NULL,
-                                       block_crypto_read_func,
-                                       bs,
-                                       cflags,
-                                       errp);
-
-    if (!crypto->block) {
-        ret = -EIO;
-        goto cleanup;
-    }
-
-    bs->encrypted = true;
-
-    ret = 0;
- cleanup:
-    QDECREF(cryptoopts);
-    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,
-    };
-    QDict *cryptoopts;
-
-    cryptoopts = qemu_opts_to_qdict(opts, NULL);
-
-    create_opts = block_crypto_create_opts_init(format, cryptoopts, errp);
-    if (!create_opts) {
-        return -1;
-    }
-
-    crypto = qcrypto_block_create(create_opts, NULL,
-                                  block_crypto_init_func,
-                                  block_crypto_write_func,
-                                  &data,
-                                  errp);
-
-    if (!crypto) {
-        ret = -EIO;
-        goto cleanup;
-    }
-
-    ret = 0;
- cleanup:
-    QDECREF(cryptoopts);
-    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,
-                                 PreallocMode prealloc, 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, prealloc, 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/crypto.h

@@ -1,101 +0,0 @@
-/*
- * QEMU block full disk encryption
- *
- * Copyright (c) 2015-2017 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/>.
- *
- */
-
-#ifndef BLOCK_CRYPTO_H__
-#define BLOCK_CRYPTO_H__
-
-#define BLOCK_CRYPTO_OPT_DEF_KEY_SECRET(prefix, helpstr)                \
-    {                                                                   \
-        .name = prefix BLOCK_CRYPTO_OPT_QCOW_KEY_SECRET,                \
-        .type = QEMU_OPT_STRING,                                        \
-        .help = helpstr,                                                \
-    }
-
-#define BLOCK_CRYPTO_OPT_QCOW_KEY_SECRET "key-secret"
-
-#define BLOCK_CRYPTO_OPT_DEF_QCOW_KEY_SECRET(prefix)                    \
-    BLOCK_CRYPTO_OPT_DEF_KEY_SECRET(prefix,                             \
-        "ID of the secret that provides the AES encryption key")
-
-#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"
-
-#define BLOCK_CRYPTO_OPT_DEF_LUKS_KEY_SECRET(prefix)                    \
-    BLOCK_CRYPTO_OPT_DEF_KEY_SECRET(prefix,                             \
-        "ID of the secret that provides the keyslot passphrase")
-
-#define BLOCK_CRYPTO_OPT_DEF_LUKS_CIPHER_ALG(prefix)       \
-    {                                                      \
-        .name = prefix BLOCK_CRYPTO_OPT_LUKS_CIPHER_ALG,   \
-        .type = QEMU_OPT_STRING,                           \
-        .help = "Name of encryption cipher algorithm",     \
-    }
-
-#define BLOCK_CRYPTO_OPT_DEF_LUKS_CIPHER_MODE(prefix)      \
-    {                                                      \
-        .name = prefix BLOCK_CRYPTO_OPT_LUKS_CIPHER_MODE,  \
-        .type = QEMU_OPT_STRING,                           \
-        .help = "Name of encryption cipher mode",          \
-    }
-
-#define BLOCK_CRYPTO_OPT_DEF_LUKS_IVGEN_ALG(prefix)     \
-    {                                                   \
-        .name = prefix BLOCK_CRYPTO_OPT_LUKS_IVGEN_ALG, \
-        .type = QEMU_OPT_STRING,                        \
-        .help = "Name of IV generator algorithm",       \
-    }
-
-#define BLOCK_CRYPTO_OPT_DEF_LUKS_IVGEN_HASH_ALG(prefix)        \
-    {                                                           \
-        .name = prefix BLOCK_CRYPTO_OPT_LUKS_IVGEN_HASH_ALG,    \
-        .type = QEMU_OPT_STRING,                                \
-        .help = "Name of IV generator hash algorithm",          \
-    }
-
-#define BLOCK_CRYPTO_OPT_DEF_LUKS_HASH_ALG(prefix)       \
-    {                                                    \
-        .name = prefix BLOCK_CRYPTO_OPT_LUKS_HASH_ALG,   \
-        .type = QEMU_OPT_STRING,                         \
-        .help = "Name of encryption hash algorithm",     \
-    }
-
-#define BLOCK_CRYPTO_OPT_DEF_LUKS_ITER_TIME(prefix)           \
-    {                                                         \
-        .name = prefix BLOCK_CRYPTO_OPT_LUKS_ITER_TIME,       \
-        .type = QEMU_OPT_NUMBER,                              \
-        .help = "Time to spend in PBKDF in milliseconds",     \
-    }
-
-QCryptoBlockCreateOptions *
-block_crypto_create_opts_init(QCryptoBlockFormat format,
-                              QDict *opts,
-                              Error **errp);
-
-QCryptoBlockOpenOptions *
-block_crypto_open_opts_init(QCryptoBlockFormat format,
-                            QDict *opts,
-                            Error **errp);
-
-#endif /* BLOCK_CRYPTO_H__ */

block/curl.c

@@ -21,31 +21,19 @@
  * 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 "qemu/error-report.h"
 #include "block/block_int.h"
 #include "qapi/qmp/qbool.h"
-#include "qapi/qmp/qstring.h"
-#include "crypto/secret.h"
 #include <curl/curl.h>
-#include "qemu/cutils.h"
 
 // #define DEBUG_CURL
 // #define DEBUG_VERBOSE
 
 #ifdef DEBUG_CURL
-#define DEBUG_CURL_PRINT 1
+#define DPRINTF(fmt, ...) do { printf(fmt, ## __VA_ARGS__); } while (0)
 #else
-#define DEBUG_CURL_PRINT 0
+#define DPRINTF(fmt, ...) do { } while (0)
 #endif
-#define DPRINTF(fmt, ...)                                            \
-    do {                                                             \
-        if (DEBUG_CURL_PRINT) {                                      \
-            fprintf(stderr, fmt, ## __VA_ARGS__);                    \
-        }                                                            \
-    } while (0)
 
 #if LIBCURL_VERSION_NUM >= 0x071000
 /* The multi interface timer callback was introduced in 7.16.0 */
@@ -68,54 +56,48 @@ static CURLMcode __curl_multi_socket_action(CURLM *multi_handle,
 #endif
 
 #define PROTOCOLS (CURLPROTO_HTTP | CURLPROTO_HTTPS | \
-                   CURLPROTO_FTP | CURLPROTO_FTPS)
+                   CURLPROTO_FTP | CURLPROTO_FTPS | \
+                   CURLPROTO_TFTP)
 
 #define CURL_NUM_STATES 8
 #define CURL_NUM_ACB    8
+#define SECTOR_SIZE     512
 #define READ_AHEAD_DEFAULT (256 * 1024)
 #define CURL_TIMEOUT_DEFAULT 5
 #define CURL_TIMEOUT_MAX 10000
 
+#define FIND_RET_NONE   0
+#define FIND_RET_OK     1
+#define FIND_RET_WAIT   2
+
 #define CURL_BLOCK_OPT_URL       "url"
 #define CURL_BLOCK_OPT_READAHEAD "readahead"
 #define CURL_BLOCK_OPT_SSLVERIFY "sslverify"
 #define CURL_BLOCK_OPT_TIMEOUT "timeout"
 #define CURL_BLOCK_OPT_COOKIE    "cookie"
-#define CURL_BLOCK_OPT_COOKIE_SECRET "cookie-secret"
-#define CURL_BLOCK_OPT_USERNAME "username"
-#define CURL_BLOCK_OPT_PASSWORD_SECRET "password-secret"
-#define CURL_BLOCK_OPT_PROXY_USERNAME "proxy-username"
-#define CURL_BLOCK_OPT_PROXY_PASSWORD_SECRET "proxy-password-secret"
 
 struct BDRVCURLState;
 
 typedef struct CURLAIOCB {
-    Coroutine *co;
+    BlockAIOCB common;
+    QEMUBH *bh;
     QEMUIOVector *qiov;
 
-    uint64_t offset;
-    uint64_t bytes;
-    int ret;
+    int64_t sector_num;
+    int nb_sectors;
 
     size_t start;
     size_t end;
-
-    QSIMPLEQ_ENTRY(CURLAIOCB) next;
 } CURLAIOCB;
 
-typedef struct CURLSocket {
-    int fd;
-    QLIST_ENTRY(CURLSocket) next;
-} CURLSocket;
-
 typedef struct CURLState
 {
     struct BDRVCURLState *s;
     CURLAIOCB *acb[CURL_NUM_ACB];
     CURL *curl;
-    QLIST_HEAD(, CURLSocket) sockets;
+    curl_socket_t sock_fd;
     char *orig_buf;
-    uint64_t buf_start;
+    size_t buf_start;
     size_t buf_off;
     size_t buf_len;
     char range[128];
@@ -126,7 +108,7 @@ typedef struct CURLState
 typedef struct BDRVCURLState {
     CURLM *multi;
     QEMUTimer timer;
-    uint64_t len;
+    size_t len;
     CURLState states[CURL_NUM_STATES];
     char *url;
     size_t readahead_size;
@@ -135,12 +117,6 @@ typedef struct BDRVCURLState {
     char *cookie;
     bool accept_range;
     AioContext *aio_context;
-    QemuMutex mutex;
-    QSIMPLEQ_HEAD(, CURLAIOCB) free_state_waitq;
-    char *username;
-    char *password;
-    char *proxyusername;
-    char *proxypassword;
 } BDRVCURLState;
 
 static void curl_clean_state(CURLState *s);
@@ -148,7 +124,6 @@ static void curl_multi_do(void *arg);
 static void curl_multi_read(void *arg);
 
 #ifdef NEED_CURL_TIMER_CALLBACK
-/* Called from curl_multi_do_locked, with s->mutex held.  */
 static int curl_timer_cb(CURLM *multi, long timeout_ms, void *opaque)
 {
     BDRVCURLState *s = opaque;
@@ -165,57 +140,36 @@ static int curl_timer_cb(CURLM *multi, long timeout_ms, void *opaque)
 }
 #endif
 
-/* Called from curl_multi_do_locked, with s->mutex held.  */
 static int curl_sock_cb(CURL *curl, curl_socket_t fd, int action,
                         void *userp, void *sp)
 {
     BDRVCURLState *s;
     CURLState *state = NULL;
-    CURLSocket *socket;
-
     curl_easy_getinfo(curl, CURLINFO_PRIVATE, (char **)&state);
+    state->sock_fd = fd;
     s = state->s;
 
-    QLIST_FOREACH(socket, &state->sockets, next) {
-        if (socket->fd == fd) {
-            if (action == CURL_POLL_REMOVE) {
-                QLIST_REMOVE(socket, next);
-                g_free(socket);
-            }
-            break;
-        }
-    }
-    if (!socket) {
-        socket = g_new0(CURLSocket, 1);
-        socket->fd = fd;
-        QLIST_INSERT_HEAD(&state->sockets, socket, next);
-    }
-    socket = NULL;
-
-    DPRINTF("CURL (AIO): Sock action %d on fd %d\n", action, (int)fd);
+    DPRINTF("CURL (AIO): Sock action %d on fd %d\n", action, fd);
     switch (action) {
         case CURL_POLL_IN:
-            aio_set_fd_handler(s->aio_context, fd, false,
-                               curl_multi_read, NULL, NULL, state);
+            aio_set_fd_handler(s->aio_context, fd, curl_multi_read,
+                               NULL, state);
             break;
         case CURL_POLL_OUT:
-            aio_set_fd_handler(s->aio_context, fd, false,
-                               NULL, curl_multi_do, NULL, state);
+            aio_set_fd_handler(s->aio_context, fd, NULL, curl_multi_do, state);
             break;
         case CURL_POLL_INOUT:
-            aio_set_fd_handler(s->aio_context, fd, false,
-                               curl_multi_read, curl_multi_do, NULL, state);
+            aio_set_fd_handler(s->aio_context, fd, curl_multi_read,
+                               curl_multi_do, state);
             break;
         case CURL_POLL_REMOVE:
-            aio_set_fd_handler(s->aio_context, fd, false,
-                               NULL, NULL, NULL, NULL);
+            aio_set_fd_handler(s->aio_context, fd, NULL, NULL, NULL);
             break;
     }
 
     return 0;
 }
 
-/* Called from curl_multi_do_locked, with s->mutex held.  */
 static size_t curl_header_cb(void *ptr, size_t size, size_t nmemb, void *opaque)
 {
     BDRVCURLState *s = opaque;
@@ -230,7 +184,6 @@ static size_t curl_header_cb(void *ptr, size_t size, size_t nmemb, void *opaque)
     return realsize;
 }
 
-/* Called from curl_multi_do_locked, with s->mutex held.  */
 static size_t curl_read_cb(void *ptr, size_t size, size_t nmemb, void *opaque)
 {
     CURLState *s = ((CURLState*)opaque);
@@ -239,13 +192,12 @@ static size_t curl_read_cb(void *ptr, size_t size, size_t nmemb, void *opaque)
 
     DPRINTF("CURL: Just reading %zd bytes\n", realsize);
 
-    if (!s || !s->orig_buf) {
-        goto read_end;
-    }
+    if (!s || !s->orig_buf)
+        return 0;
 
     if (s->buf_off >= s->buf_len) {
         /* buffer full, read nothing */
-        goto read_end;
+        return 0;
     }
     realsize = MIN(realsize, s->buf_len - s->buf_off);
     memcpy(s->orig_buf + s->buf_off, ptr, realsize);
@@ -258,43 +210,27 @@ static size_t curl_read_cb(void *ptr, size_t size, size_t nmemb, void *opaque)
             continue;
 
         if ((s->buf_off >= acb->end)) {
-            size_t request_length = acb->bytes;
-
             qemu_iovec_from_buf(acb->qiov, 0, s->orig_buf + acb->start,
                                 acb->end - acb->start);
-
-            if (acb->end - acb->start < request_length) {
-                size_t offset = acb->end - acb->start;
-                qemu_iovec_memset(acb->qiov, offset, 0,
-                                  request_length - offset);
-            }
-
-            acb->ret = 0;
+            acb->common.cb(acb->common.opaque, 0);
+            qemu_aio_unref(acb);
             s->acb[i] = NULL;
-            qemu_mutex_unlock(&s->s->mutex);
-            aio_co_wake(acb->co);
-            qemu_mutex_lock(&s->s->mutex);
         }
     }
 
-read_end:
-    /* curl will error out if we do not return this value */
-    return size * nmemb;
+    return realsize;
 }
 
-/* Called with s->mutex held.  */
-static bool curl_find_buf(BDRVCURLState *s, uint64_t start, uint64_t len,
-                          CURLAIOCB *acb)
+static int curl_find_buf(BDRVCURLState *s, size_t start, size_t len,
+                         CURLAIOCB *acb)
 {
     int i;
-    uint64_t end = start + len;
-    uint64_t clamped_end = MIN(end, s->len);
-    uint64_t clamped_len = clamped_end - start;
+    size_t end = start + len;
 
     for (i=0; i<CURL_NUM_STATES; i++) {
         CURLState *state = &s->states[i];
-        uint64_t buf_end = (state->buf_start + state->buf_off);
-        uint64_t buf_fend = (state->buf_start + state->buf_len);
+        size_t buf_end = (state->buf_start + state->buf_off);
+        size_t buf_fend = (state->buf_start + state->buf_len);
 
         if (!state->orig_buf)
             continue;
@@ -304,44 +240,41 @@ static bool curl_find_buf(BDRVCURLState *s, uint64_t start, uint64_t len,
         // Does the existing buffer cover our section?
         if ((start >= state->buf_start) &&
             (start <= buf_end) &&
-            (clamped_end >= state->buf_start) &&
-            (clamped_end <= buf_end))
+            (end >= state->buf_start) &&
+            (end <= buf_end))
         {
             char *buf = state->orig_buf + (start - state->buf_start);
 
-            qemu_iovec_from_buf(acb->qiov, 0, buf, clamped_len);
-            if (clamped_len < len) {
-                qemu_iovec_memset(acb->qiov, clamped_len, 0, len - clamped_len);
-            }
-            acb->ret = 0;
-            return true;
+            qemu_iovec_from_buf(acb->qiov, 0, buf, len);
+            acb->common.cb(acb->common.opaque, 0);
+
+            return FIND_RET_OK;
         }
 
         // Wait for unfinished chunks
         if (state->in_use &&
             (start >= state->buf_start) &&
             (start <= buf_fend) &&
-            (clamped_end >= state->buf_start) &&
-            (clamped_end <= buf_fend))
+            (end >= state->buf_start) &&
+            (end <= buf_fend))
         {
             int j;
 
             acb->start = start - state->buf_start;
-            acb->end = acb->start + clamped_len;
+            acb->end = acb->start + len;
 
             for (j=0; j<CURL_NUM_ACB; j++) {
                 if (!state->acb[j]) {
                     state->acb[j] = acb;
-                    return true;
+                    return FIND_RET_WAIT;
                 }
             }
         }
     }
 
-    return false;
+    return FIND_RET_NONE;
 }
 
-/* Called with s->mutex held.  */
 static void curl_multi_check_completion(BDRVCURLState *s)
 {
     int msgs_in_queue;
@@ -364,18 +297,6 @@ static void curl_multi_check_completion(BDRVCURLState *s)
             /* ACBs for successful messages get completed in curl_read_cb */
             if (msg->data.result != CURLE_OK) {
                 int i;
-                static int errcount = 100;
-
-                /* Don't lose the original error message from curl, since
-                 * it contains extra data.
-                 */
-                if (errcount > 0) {
-                    error_report("curl: %s", state->errmsg);
-                    if (--errcount == 0) {
-                        error_report("curl: further errors suppressed");
-                    }
-                }
-
                 for (i = 0; i < CURL_NUM_ACB; i++) {
                     CURLAIOCB *acb = state->acb[i];
 
@@ -383,11 +304,9 @@ static void curl_multi_check_completion(BDRVCURLState *s)
                         continue;
                     }
 
-                    acb->ret = -EIO;
+                    acb->common.cb(acb->common.opaque, -EIO);
+                    qemu_aio_unref(acb);
                     state->acb[i] = NULL;
-                    qemu_mutex_unlock(&s->mutex);
-                    aio_co_wake(acb->co);
-                    qemu_mutex_lock(&s->mutex);
                 }
             }
 
@@ -397,10 +316,9 @@ static void curl_multi_check_completion(BDRVCURLState *s)
     }
 }
 
-/* Called with s->mutex held.  */
-static void curl_multi_do_locked(CURLState *s)
+static void curl_multi_do(void *arg)
 {
-    CURLSocket *socket, *next_socket;
+    CURLState *s = (CURLState *)arg;
     int running;
     int r;
 
@@ -408,32 +326,18 @@ static void curl_multi_do_locked(CURLState *s)
         return;
     }
 
-    /* Need to use _SAFE because curl_multi_socket_action() may trigger
-     * curl_sock_cb() which might modify this list */
-    QLIST_FOREACH_SAFE(socket, &s->sockets, next, next_socket) {
-        do {
-            r = curl_multi_socket_action(s->s->multi, socket->fd, 0, &running);
-        } while (r == CURLM_CALL_MULTI_PERFORM);
-    }
-}
+    do {
+        r = curl_multi_socket_action(s->s->multi, s->sock_fd, 0, &running);
+    } while(r == CURLM_CALL_MULTI_PERFORM);
 
-static void curl_multi_do(void *arg)
-{
-    CURLState *s = (CURLState *)arg;
-
-    qemu_mutex_lock(&s->s->mutex);
-    curl_multi_do_locked(s);
-    qemu_mutex_unlock(&s->s->mutex);
 }
 
 static void curl_multi_read(void *arg)
 {
     CURLState *s = (CURLState *)arg;
 
-    qemu_mutex_lock(&s->s->mutex);
-    curl_multi_do_locked(s);
+    curl_multi_do(arg);
     curl_multi_check_completion(s->s);
-    qemu_mutex_unlock(&s->s->mutex);
 }
 
 static void curl_multi_timeout_do(void *arg)
@@ -446,38 +350,40 @@ static void curl_multi_timeout_do(void *arg)
         return;
     }
 
-    qemu_mutex_lock(&s->mutex);
     curl_multi_socket_action(s->multi, CURL_SOCKET_TIMEOUT, 0, &running);
 
     curl_multi_check_completion(s);
-    qemu_mutex_unlock(&s->mutex);
 #else
     abort();
 #endif
 }
 
-/* Called with s->mutex held.  */
-static CURLState *curl_find_state(BDRVCURLState *s)
+static CURLState *curl_init_state(BlockDriverState *bs, BDRVCURLState *s)
 {
     CURLState *state = NULL;
-    int i;
+    int i, j;
+
+    do {
+        for (i=0; i<CURL_NUM_STATES; i++) {
+            for (j=0; j<CURL_NUM_ACB; j++)
+                if (s->states[i].acb[j])
+                    continue;
+            if (s->states[i].in_use)
+                continue;
 
-    for (i = 0; i < CURL_NUM_STATES; i++) {
-        if (!s->states[i].in_use) {
             state = &s->states[i];
             state->in_use = 1;
             break;
         }
-    }
-    return state;
-}
+        if (!state) {
+            aio_poll(bdrv_get_aio_context(bs), true);
+        }
+    } while(!state);
 
-static int curl_init_state(BDRVCURLState *s, CURLState *state)
-{
     if (!state->curl) {
         state->curl = curl_easy_init();
         if (!state->curl) {
-            return -EIO;
+            return NULL;
         }
         curl_easy_setopt(state->curl, CURLOPT_URL, s->url);
         curl_easy_setopt(state->curl, CURLOPT_SSL_VERIFYPEER,
@@ -496,21 +402,6 @@ static int curl_init_state(BDRVCURLState *s, CURLState *state)
         curl_easy_setopt(state->curl, CURLOPT_ERRORBUFFER, state->errmsg);
         curl_easy_setopt(state->curl, CURLOPT_FAILONERROR, 1);
 
-        if (s->username) {
-            curl_easy_setopt(state->curl, CURLOPT_USERNAME, s->username);
-        }
-        if (s->password) {
-            curl_easy_setopt(state->curl, CURLOPT_PASSWORD, s->password);
-        }
-        if (s->proxyusername) {
-            curl_easy_setopt(state->curl,
-                             CURLOPT_PROXYUSERNAME, s->proxyusername);
-        }
-        if (s->proxypassword) {
-            curl_easy_setopt(state->curl,
-                             CURLOPT_PROXYPASSWORD, s->proxypassword);
-        }
-
         /* Restrict supported protocols to avoid security issues in the more
          * obscure protocols.  For example, do not allow POP3/SMTP/IMAP see
          * CVE-2013-0249.
@@ -527,46 +418,22 @@ static int curl_init_state(BDRVCURLState *s, CURLState *state)
 #endif
     }
 
-    QLIST_INIT(&state->sockets);
     state->s = s;
 
-    return 0;
+    return state;
 }
 
-/* Called with s->mutex held.  */
 static void curl_clean_state(CURLState *s)
 {
-    CURLAIOCB *next;
-    int j;
-    for (j = 0; j < CURL_NUM_ACB; j++) {
-        assert(!s->acb[j]);
-    }
-
     if (s->s->multi)
         curl_multi_remove_handle(s->s->multi, s->curl);
-
-    while (!QLIST_EMPTY(&s->sockets)) {
-        CURLSocket *socket = QLIST_FIRST(&s->sockets);
-
-        QLIST_REMOVE(socket, next);
-        g_free(socket);
-    }
-
     s->in_use = 0;
-
-    next = QSIMPLEQ_FIRST(&s->s->free_state_waitq);
-    if (next) {
-        QSIMPLEQ_REMOVE_HEAD(&s->s->free_state_waitq, next);
-        qemu_mutex_unlock(&s->s->mutex);
-        aio_co_wake(next->co);
-        qemu_mutex_lock(&s->s->mutex);
-    }
 }
 
 static void curl_parse_filename(const char *filename, QDict *options,
                                 Error **errp)
 {
-    qdict_put_str(options, CURL_BLOCK_OPT_URL, filename);
+    qdict_put(options, CURL_BLOCK_OPT_URL, qstring_from_str(filename));
 }
 
 static void curl_detach_aio_context(BlockDriverState *bs)
@@ -574,7 +441,6 @@ static void curl_detach_aio_context(BlockDriverState *bs)
     BDRVCURLState *s = bs->opaque;
     int i;
 
-    qemu_mutex_lock(&s->mutex);
     for (i = 0; i < CURL_NUM_STATES; i++) {
         if (s->states[i].in_use) {
             curl_clean_state(&s->states[i]);
@@ -590,7 +456,6 @@ static void curl_detach_aio_context(BlockDriverState *bs)
         curl_multi_cleanup(s->multi);
         s->multi = NULL;
     }
-    qemu_mutex_unlock(&s->mutex);
 
     timer_del(&s->timer);
 }
@@ -643,36 +508,10 @@ static QemuOptsList runtime_opts = {
             .type = QEMU_OPT_STRING,
             .help = "Pass the cookie or list of cookies with each request"
         },
-        {
-            .name = CURL_BLOCK_OPT_COOKIE_SECRET,
-            .type = QEMU_OPT_STRING,
-            .help = "ID of secret used as cookie passed with each request"
-        },
-        {
-            .name = CURL_BLOCK_OPT_USERNAME,
-            .type = QEMU_OPT_STRING,
-            .help = "Username for HTTP auth"
-        },
-        {
-            .name = CURL_BLOCK_OPT_PASSWORD_SECRET,
-            .type = QEMU_OPT_STRING,
-            .help = "ID of secret used as password for HTTP auth",
-        },
-        {
-            .name = CURL_BLOCK_OPT_PROXY_USERNAME,
-            .type = QEMU_OPT_STRING,
-            .help = "Username for HTTP proxy auth"
-        },
-        {
-            .name = CURL_BLOCK_OPT_PROXY_PASSWORD_SECRET,
-            .type = QEMU_OPT_STRING,
-            .help = "ID of secret used as password for HTTP proxy auth",
-        },
         { /* end of list */ }
     },
 };
 
-
 static int curl_open(BlockDriverState *bs, QDict *options, int flags,
                      Error **errp)
 {
@@ -682,10 +521,7 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags,
     Error *local_err = NULL;
     const char *file;
     const char *cookie;
-    const char *cookie_secret;
     double d;
-    const char *secretid;
-    const char *protocol_delimiter;
 
     static int inited = 0;
 
@@ -694,7 +530,6 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags,
         return -EROFS;
     }
 
-    qemu_mutex_init(&s->mutex);
     opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
     qemu_opts_absorb_qdict(opts, options, &local_err);
     if (local_err) {
@@ -720,22 +555,7 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags,
     s->sslverify = qemu_opt_get_bool(opts, CURL_BLOCK_OPT_SSLVERIFY, true);
 
     cookie = qemu_opt_get(opts, CURL_BLOCK_OPT_COOKIE);
-    cookie_secret = qemu_opt_get(opts, CURL_BLOCK_OPT_COOKIE_SECRET);
-
-    if (cookie && cookie_secret) {
-        error_setg(errp,
-                   "curl driver cannot handle both cookie and cookie secret");
-        goto out_noclean;
-    }
-
-    if (cookie_secret) {
-        s->cookie = qcrypto_secret_lookup_as_utf8(cookie_secret, errp);
-        if (!s->cookie) {
-            goto out_noclean;
-        }
-    } else {
-        s->cookie = g_strdup(cookie);
-    }
+    s->cookie = g_strdup(cookie);
 
     file = qemu_opt_get(opts, CURL_BLOCK_OPT_URL);
     if (file == NULL) {
@@ -743,57 +563,20 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags,
         goto out_noclean;
     }
 
-    if (!strstart(file, bs->drv->protocol_name, &protocol_delimiter) ||
-        !strstart(protocol_delimiter, "://", NULL))
-    {
-        error_setg(errp, "%s curl driver cannot handle the URL '%s' (does not "
-                   "start with '%s://')", bs->drv->protocol_name, file,
-                   bs->drv->protocol_name);
-        goto out_noclean;
-    }
-
-    s->username = g_strdup(qemu_opt_get(opts, CURL_BLOCK_OPT_USERNAME));
-    secretid = qemu_opt_get(opts, CURL_BLOCK_OPT_PASSWORD_SECRET);
-
-    if (secretid) {
-        s->password = qcrypto_secret_lookup_as_utf8(secretid, errp);
-        if (!s->password) {
-            goto out_noclean;
-        }
-    }
-
-    s->proxyusername = g_strdup(
-        qemu_opt_get(opts, CURL_BLOCK_OPT_PROXY_USERNAME));
-    secretid = qemu_opt_get(opts, CURL_BLOCK_OPT_PROXY_PASSWORD_SECRET);
-    if (secretid) {
-        s->proxypassword = qcrypto_secret_lookup_as_utf8(secretid, errp);
-        if (!s->proxypassword) {
-            goto out_noclean;
-        }
-    }
-
     if (!inited) {
         curl_global_init(CURL_GLOBAL_ALL);
         inited = 1;
     }
 
     DPRINTF("CURL: Opening %s\n", file);
-    QSIMPLEQ_INIT(&s->free_state_waitq);
     s->aio_context = bdrv_get_aio_context(bs);
     s->url = g_strdup(file);
-    qemu_mutex_lock(&s->mutex);
-    state = curl_find_state(s);
-    qemu_mutex_unlock(&s->mutex);
-    if (!state) {
+    state = curl_init_state(bs, s);
+    if (!state)
         goto out_noclean;
-    }
 
     // Get file size
 
-    if (curl_init_state(s, state) < 0) {
-        goto out;
-    }
-
     s->accept_range = false;
     curl_easy_setopt(state->curl, CURLOPT_NOBODY, 1);
     curl_easy_setopt(state->curl, CURLOPT_HEADERFUNCTION,
@@ -801,28 +584,11 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags,
     curl_easy_setopt(state->curl, CURLOPT_HEADERDATA, s);
     if (curl_easy_perform(state->curl))
         goto out;
-    if (curl_easy_getinfo(state->curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d)) {
+    curl_easy_getinfo(state->curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d);
+    if (d)
+        s->len = (size_t)d;
+    else if(!s->len)
         goto out;
-    }
-    /* Prior CURL 7.19.4 return value of 0 could mean that the file size is not
-     * know or the size is zero. From 7.19.4 CURL returns -1 if size is not
-     * known and zero if it is realy zero-length file. */
-#if LIBCURL_VERSION_NUM >= 0x071304
-    if (d < 0) {
-        pstrcpy(state->errmsg, CURL_ERROR_SIZE,
-                "Server didn't report file size.");
-        goto out;
-    }
-#else
-    if (d <= 0) {
-        pstrcpy(state->errmsg, CURL_ERROR_SIZE,
-                "Unknown file size or zero-length file.");
-        goto out;
-    }
-#endif
-
-    s->len = d;
-
     if ((!strncasecmp(s->url, "http://", strlen("http://"))
         || !strncasecmp(s->url, "https://", strlen("https://")))
         && !s->accept_range) {
@@ -830,11 +596,9 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags,
                 "Server does not support 'range' (byte ranges).");
         goto out;
     }
-    DPRINTF("CURL: Size = %" PRIu64 "\n", s->len);
+    DPRINTF("CURL: Size = %zd\n", s->len);
 
-    qemu_mutex_lock(&s->mutex);
     curl_clean_state(state);
-    qemu_mutex_unlock(&s->mutex);
     curl_easy_cleanup(state->curl);
     state->curl = NULL;
 
@@ -848,95 +612,94 @@ out:
     curl_easy_cleanup(state->curl);
     state->curl = NULL;
 out_noclean:
-    qemu_mutex_destroy(&s->mutex);
     g_free(s->cookie);
     g_free(s->url);
     qemu_opts_del(opts);
     return -EINVAL;
 }
 
-static void curl_setup_preadv(BlockDriverState *bs, CURLAIOCB *acb)
+static const AIOCBInfo curl_aiocb_info = {
+    .aiocb_size         = sizeof(CURLAIOCB),
+};
+
+
+static void curl_readv_bh_cb(void *p)
 {
     CURLState *state;
     int running;
 
-    BDRVCURLState *s = bs->opaque;
+    CURLAIOCB *acb = p;
+    BDRVCURLState *s = acb->common.bs->opaque;
 
-    uint64_t start = acb->offset;
-    uint64_t end;
+    qemu_bh_delete(acb->bh);
+    acb->bh = NULL;
 
-    qemu_mutex_lock(&s->mutex);
+    size_t start = acb->sector_num * SECTOR_SIZE;
+    size_t end;
 
     // In case we have the requested data already (e.g. read-ahead),
     // we can just call the callback and be done.
-    if (curl_find_buf(s, start, acb->bytes, acb)) {
-        goto out;
+    switch (curl_find_buf(s, start, acb->nb_sectors * SECTOR_SIZE, acb)) {
+        case FIND_RET_OK:
+            qemu_aio_unref(acb);
+            // fall through
+        case FIND_RET_WAIT:
+            return;
+        default:
+            break;
     }
 
     // No cache found, so let's start a new request
-    for (;;) {
-        state = curl_find_state(s);
-        if (state) {
-            break;
-        }
-        QSIMPLEQ_INSERT_TAIL(&s->free_state_waitq, acb, next);
-        qemu_mutex_unlock(&s->mutex);
-        qemu_coroutine_yield();
-        qemu_mutex_lock(&s->mutex);
-    }
-
-    if (curl_init_state(s, state) < 0) {
-        curl_clean_state(state);
-        acb->ret = -EIO;
-        goto out;
+    state = curl_init_state(acb->common.bs, s);
+    if (!state) {
+        acb->common.cb(acb->common.opaque, -EIO);
+        qemu_aio_unref(acb);
+        return;
     }
 
     acb->start = 0;
-    acb->end = MIN(acb->bytes, s->len - start);
+    acb->end = (acb->nb_sectors * SECTOR_SIZE);
 
     state->buf_off = 0;
     g_free(state->orig_buf);
     state->buf_start = start;
-    state->buf_len = MIN(acb->end + s->readahead_size, s->len - start);
-    end = start + state->buf_len - 1;
+    state->buf_len = acb->end + s->readahead_size;
+    end = MIN(start + state->buf_len, s->len) - 1;
     state->orig_buf = g_try_malloc(state->buf_len);
     if (state->buf_len && state->orig_buf == NULL) {
         curl_clean_state(state);
-        acb->ret = -ENOMEM;
-        goto out;
+        acb->common.cb(acb->common.opaque, -ENOMEM);
+        qemu_aio_unref(acb);
+        return;
     }
     state->acb[0] = acb;
 
-    snprintf(state->range, 127, "%" PRIu64 "-%" PRIu64, start, end);
-    DPRINTF("CURL (AIO): Reading %" PRIu64 " at %" PRIu64 " (%s)\n",
-            acb->bytes, start, state->range);
+    snprintf(state->range, 127, "%zd-%zd", start, end);
+    DPRINTF("CURL (AIO): Reading %d at %zd (%s)\n",
+            (acb->nb_sectors * SECTOR_SIZE), start, state->range);
     curl_easy_setopt(state->curl, CURLOPT_RANGE, state->range);
 
     curl_multi_add_handle(s->multi, state->curl);
 
     /* Tell curl it needs to kick things off */
     curl_multi_socket_action(s->multi, CURL_SOCKET_TIMEOUT, 0, &running);
-
-out:
-    qemu_mutex_unlock(&s->mutex);
 }
 
-static int coroutine_fn curl_co_preadv(BlockDriverState *bs,
-        uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags)
+static BlockAIOCB *curl_aio_readv(BlockDriverState *bs,
+        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
+        BlockCompletionFunc *cb, void *opaque)
 {
-    CURLAIOCB acb = {
-        .co = qemu_coroutine_self(),
-        .ret = -EINPROGRESS,
-        .qiov = qiov,
-        .offset = offset,
-        .bytes = bytes
-    };
+    CURLAIOCB *acb;
 
-    curl_setup_preadv(bs, &acb);
-    while (acb.ret == -EINPROGRESS) {
-        qemu_coroutine_yield();
-    }
-    return acb.ret;
+    acb = qemu_aio_get(&curl_aiocb_info, bs, cb, opaque);
+
+    acb->qiov = qiov;
+    acb->sector_num = sector_num;
+    acb->nb_sectors = nb_sectors;
+
+    acb->bh = aio_bh_new(bdrv_get_aio_context(bs), curl_readv_bh_cb, acb);
+    qemu_bh_schedule(acb->bh);
+    return &acb->common;
 }
 
 static void curl_close(BlockDriverState *bs)
@@ -945,7 +708,6 @@ static void curl_close(BlockDriverState *bs)
 
     DPRINTF("CURL: Close\n");
     curl_detach_aio_context(bs);
-    qemu_mutex_destroy(&s->mutex);
 
     g_free(s->cookie);
     g_free(s->url);
@@ -967,7 +729,7 @@ static BlockDriver bdrv_http = {
     .bdrv_close                 = curl_close,
     .bdrv_getlength             = curl_getlength,
 
-    .bdrv_co_preadv             = curl_co_preadv,
+    .bdrv_aio_readv             = curl_aio_readv,
 
     .bdrv_detach_aio_context    = curl_detach_aio_context,
     .bdrv_attach_aio_context    = curl_attach_aio_context,
@@ -983,7 +745,7 @@ static BlockDriver bdrv_https = {
     .bdrv_close                 = curl_close,
     .bdrv_getlength             = curl_getlength,
 
-    .bdrv_co_preadv             = curl_co_preadv,
+    .bdrv_aio_readv             = curl_aio_readv,
 
     .bdrv_detach_aio_context    = curl_detach_aio_context,
     .bdrv_attach_aio_context    = curl_attach_aio_context,
@@ -999,7 +761,7 @@ static BlockDriver bdrv_ftp = {
     .bdrv_close                 = curl_close,
     .bdrv_getlength             = curl_getlength,
 
-    .bdrv_co_preadv             = curl_co_preadv,
+    .bdrv_aio_readv             = curl_aio_readv,
 
     .bdrv_detach_aio_context    = curl_detach_aio_context,
     .bdrv_attach_aio_context    = curl_attach_aio_context,
@@ -1015,7 +777,23 @@ static BlockDriver bdrv_ftps = {
     .bdrv_close                 = curl_close,
     .bdrv_getlength             = curl_getlength,
 
-    .bdrv_co_preadv             = curl_co_preadv,
+    .bdrv_aio_readv             = curl_aio_readv,
+
+    .bdrv_detach_aio_context    = curl_detach_aio_context,
+    .bdrv_attach_aio_context    = curl_attach_aio_context,
+};
+
+static BlockDriver bdrv_tftp = {
+    .format_name                = "tftp",
+    .protocol_name              = "tftp",
+
+    .instance_size              = sizeof(BDRVCURLState),
+    .bdrv_parse_filename        = curl_parse_filename,
+    .bdrv_file_open             = curl_open,
+    .bdrv_close                 = curl_close,
+    .bdrv_getlength             = curl_getlength,
+
+    .bdrv_aio_readv             = curl_aio_readv,
 
     .bdrv_detach_aio_context    = curl_detach_aio_context,
     .bdrv_attach_aio_context    = curl_attach_aio_context,
@@ -1027,6 +805,7 @@ static void curl_block_init(void)
     bdrv_register(&bdrv_https);
     bdrv_register(&bdrv_ftp);
     bdrv_register(&bdrv_ftps);
+    bdrv_register(&bdrv_tftp);
 }
 
 block_init(curl_block_init);

block/dictzip.c

@@ -0,0 +1,584 @@
+/*
+ * DictZip Block driver for dictzip enabled gzip files
+ *
+ * Use the "dictzip" tool from the "dictd" package to create gzip files that
+ * contain the extra DictZip headers.
+ *
+ * dictzip(1) is a compression program which creates compressed files in the
+ * gzip format (see RFC 1952). However, unlike gzip(1), dictzip(1) compresses
+ * the file in pieces and stores an index to the pieces in the gzip header.
+ * This allows random access to the file at the granularity of the compressed
+ * pieces (currently about 64kB) while maintaining good compression ratios
+ * (within 5% of the expected ratio for dictionary data).
+ * dictd(8) uses files stored in this format.
+ *
+ * For details on DictZip see http://dict.org/.
+ *
+ * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
+ *
+ * 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 "block/block_int.h"
+#include <zlib.h>
+
+// #define DEBUG
+
+#ifdef DEBUG
+#define dprintf(fmt, ...) do { printf("dzip: " fmt, ## __VA_ARGS__); } while (0)
+#else
+#define dprintf(fmt, ...) do { } while (0)
+#endif
+
+#define SECTOR_SIZE 512
+#define Z_STREAM_COUNT 4
+#define CACHE_COUNT 20
+
+/* magic values */
+
+#define GZ_MAGIC1     0x1f
+#define GZ_MAGIC2     0x8b
+#define DZ_MAGIC1      'R'
+#define DZ_MAGIC2      'A'
+
+#define GZ_FEXTRA     0x04      /* Optional field (random access index)    */
+#define GZ_FNAME      0x08      /* Original name                           */
+#define GZ_COMMENT    0x10      /* Zero-terminated, human-readable comment */
+#define GZ_FHCRC      0x02      /* Header CRC16                            */
+
+/* offsets */
+
+#define GZ_ID            0      /* GZ_MAGIC (16bit)                        */
+#define GZ_FLG           3      /* FLaGs (see above)                       */
+#define GZ_XLEN         10      /* eXtra LENgth (16bit)                    */
+#define GZ_SI           12      /* Subfield ID (16bit)                     */
+#define GZ_VERSION      16      /* Version for subfield format             */
+#define GZ_CHUNKSIZE    18      /* Chunk size (16bit)                      */
+#define GZ_CHUNKCNT     20      /* Number of chunks (16bit)                */
+#define GZ_RNDDATA      22      /* Random access data (16bit)              */
+
+#define GZ_99_CHUNKSIZE 18      /* Chunk size (32bit)                      */
+#define GZ_99_CHUNKCNT  22      /* Number of chunks (32bit)                */
+#define GZ_99_FILESIZE  26      /* Size of unpacked file (64bit)           */
+#define GZ_99_RNDDATA   34      /* Random access data (32bit)              */
+
+struct BDRVDictZipState;
+
+typedef struct DictZipAIOCB {
+    BlockAIOCB common;
+    struct BDRVDictZipState *s;
+    QEMUIOVector *qiov;          /* QIOV of the original request */
+    QEMUIOVector *qiov_gz;       /* QIOV of the gz subrequest */
+    QEMUBH *bh;                  /* BH for cache */
+    z_stream *zStream;           /* stream to use for decoding */
+    int zStream_id;              /* stream id of the above pointer */
+    size_t start;                /* offset into the uncompressed file */
+    size_t len;                  /* uncompressed bytes to read */
+    uint8_t *gzipped;            /* the gzipped data */
+    uint8_t *buf;                /* cached result */
+    size_t gz_len;               /* amount of gzip data */
+    size_t gz_start;             /* uncompressed starting point of gzip data */
+    uint64_t offset;             /* offset for "start" into the uncompressed chunk */
+    int chunks_len;              /* amount of uncompressed data in all gzip data */
+} DictZipAIOCB;
+
+typedef struct dict_cache {
+    size_t start;
+    size_t len;
+    uint8_t *buf;
+} DictCache;
+
+typedef struct BDRVDictZipState {
+    BlockDriverState *hd;
+    z_stream zStream[Z_STREAM_COUNT];
+    DictCache cache[CACHE_COUNT];
+    int cache_index;
+    uint8_t  stream_in_use;
+    uint64_t chunk_len;
+    uint32_t chunk_cnt;
+    uint16_t *chunks;
+    uint32_t *chunks32;
+    uint64_t *offsets;
+    int64_t file_len;
+} BDRVDictZipState;
+
+static int start_zStream(z_stream *zStream)
+{
+    zStream->zalloc    = NULL;
+    zStream->zfree     = NULL;
+    zStream->opaque    = NULL;
+    zStream->next_in   = 0;
+    zStream->avail_in  = 0;
+    zStream->next_out  = NULL;
+    zStream->avail_out = 0;
+
+    return inflateInit2( zStream, -15 );
+}
+
+static QemuOptsList runtime_opts = {
+    .name = "dzip",
+    .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head),
+    .desc = {
+        {
+            .name = "filename",
+            .type = QEMU_OPT_STRING,
+            .help = "URL to the dictzip file",
+        },
+        { /* end of list */ }
+    },
+};
+
+static int dictzip_open(BlockDriverState *bs, QDict *options, int flags, Error **errp)
+{
+    BDRVDictZipState *s = bs->opaque;
+    const char *err = "Unknown (read error?)";
+    uint8_t magic[2];
+    char buf[100];
+    uint8_t header_flags;
+    uint16_t chunk_len16;
+    uint16_t chunk_cnt16;
+    uint32_t chunk_len32;
+    uint16_t header_ver;
+    uint16_t tmp_short;
+    uint64_t offset;
+    int chunks_len;
+    int headerLength = GZ_XLEN - 1;
+    int rnd_offs;
+    int ret;
+    int i;
+    QemuOpts *opts;
+    Error *local_err = NULL;
+    const char *filename;
+
+    opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
+    qemu_opts_absorb_qdict(opts, options, &local_err);
+    if (local_err != NULL) {
+        error_propagate(errp, local_err);
+        ret = -EINVAL;
+        goto fail;
+    }
+
+    filename = qemu_opt_get(opts, "filename");
+
+    if (!strncmp(filename, "dzip://", 7))
+        filename += 7;
+    else if (!strncmp(filename, "dzip:", 5))
+        filename += 5;
+
+    ret = bdrv_open(&s->hd, filename, NULL, NULL, flags | BDRV_O_PROTOCOL, NULL, &local_err);
+    if (ret < 0) {
+        error_propagate(errp, local_err);
+        qemu_opts_del(opts);
+        return ret;
+    }
+
+    /* initialize zlib streams */
+    for (i = 0; i < Z_STREAM_COUNT; i++) {
+        if (start_zStream( &s->zStream[i] ) != Z_OK) {
+            err = s->zStream[i].msg;
+            goto fail;
+        }
+    }
+
+    /* gzip header */
+    if (bdrv_pread(s->hd, GZ_ID, &magic, sizeof(magic)) != sizeof(magic))
+        goto fail;
+
+    if (!((magic[0] == GZ_MAGIC1) && (magic[1] == GZ_MAGIC2))) {
+        err = "No gzip file";
+        goto fail;
+    }
+
+    /* dzip header */
+    if (bdrv_pread(s->hd, GZ_FLG, &header_flags, 1) != 1)
+        goto fail;
+
+    if (!(header_flags & GZ_FEXTRA)) {
+        err = "Not a dictzip file (wrong flags)";
+        goto fail;
+    }
+
+    /* extra length */
+    if (bdrv_pread(s->hd, GZ_XLEN, &tmp_short, 2) != 2)
+        goto fail;
+
+    headerLength += le16_to_cpu(tmp_short) + 2;
+
+    /* DictZip magic */
+    if (bdrv_pread(s->hd, GZ_SI, &magic, 2) != 2)
+        goto fail;
+
+    if (magic[0] != DZ_MAGIC1 || magic[1] != DZ_MAGIC2) {
+        err = "Not a dictzip file (missing extra magic)";
+        goto fail;
+    }
+
+    /* DictZip version */
+    if (bdrv_pread(s->hd, GZ_VERSION, &header_ver, 2) != 2)
+        goto fail;
+
+    header_ver = le16_to_cpu(header_ver);
+
+    switch (header_ver) {
+        case 1: /* Normal DictZip */
+            /* number of chunks */
+            if (bdrv_pread(s->hd, GZ_CHUNKSIZE, &chunk_len16, 2) != 2)
+                goto fail;
+
+            s->chunk_len = le16_to_cpu(chunk_len16);
+
+            /* chunk count */
+            if (bdrv_pread(s->hd, GZ_CHUNKCNT, &chunk_cnt16, 2) != 2)
+                goto fail;
+
+            s->chunk_cnt = le16_to_cpu(chunk_cnt16);
+            chunks_len = sizeof(short) * s->chunk_cnt;
+            rnd_offs = GZ_RNDDATA;
+            break;
+        case 99: /* Special Alex pigz version */
+            /* number of chunks */
+            if (bdrv_pread(s->hd, GZ_99_CHUNKSIZE, &chunk_len32, 4) != 4)
+                goto fail;
+
+            dprintf("chunk len [%#x] = %d\n", GZ_99_CHUNKSIZE, chunk_len32);
+            s->chunk_len = le32_to_cpu(chunk_len32);
+
+            /* chunk count */
+            if (bdrv_pread(s->hd, GZ_99_CHUNKCNT, &s->chunk_cnt, 4) != 4)
+                goto fail;
+
+            s->chunk_cnt = le32_to_cpu(s->chunk_cnt);
+
+            dprintf("chunk len | count = %"PRId64" | %d\n", s->chunk_len, s->chunk_cnt);
+
+            /* file size */
+            if (bdrv_pread(s->hd, GZ_99_FILESIZE, &s->file_len, 8) != 8)
+                goto fail;
+
+            s->file_len = le64_to_cpu(s->file_len);
+            chunks_len = sizeof(int) * s->chunk_cnt;
+            rnd_offs = GZ_99_RNDDATA;
+            break;
+        default:
+            err = "Invalid DictZip version";
+            goto fail;
+    }
+
+    /* random access data */
+    s->chunks = g_malloc(chunks_len);
+    if (header_ver == 99)
+        s->chunks32 = (uint32_t *)s->chunks;
+
+    if (bdrv_pread(s->hd, rnd_offs, s->chunks, chunks_len) != chunks_len)
+        goto fail;
+
+    /* orig filename */
+    if (header_flags & GZ_FNAME) {
+        if (bdrv_pread(s->hd, headerLength + 1, buf, sizeof(buf)) != sizeof(buf))
+            goto fail;
+
+        buf[sizeof(buf) - 1] = '\0';
+        headerLength += strlen(buf) + 1;
+
+        if (strlen(buf) == sizeof(buf))
+            goto fail;
+
+        dprintf("filename: %s\n", buf);
+    }
+
+    /* comment field */
+    if (header_flags & GZ_COMMENT) {
+        if (bdrv_pread(s->hd, headerLength, buf, sizeof(buf)) != sizeof(buf))
+            goto fail;
+
+        buf[sizeof(buf) - 1] = '\0';
+        headerLength += strlen(buf) + 1;
+
+        if (strlen(buf) == sizeof(buf))
+            goto fail;
+
+        dprintf("comment: %s\n", buf);
+    }
+
+    if (header_flags & GZ_FHCRC)
+        headerLength += 2;
+
+    /* uncompressed file length*/
+    if (!s->file_len) {
+        uint32_t file_len;
+
+        if (bdrv_pread(s->hd, bdrv_getlength(s->hd) - 4, &file_len, 4) != 4)
+            goto fail;
+
+        s->file_len = le32_to_cpu(file_len);
+    }
+
+    /* compute offsets */
+    s->offsets = g_malloc(sizeof( *s->offsets ) * s->chunk_cnt);
+
+    for (offset = headerLength + 1, i = 0; i < s->chunk_cnt; i++) {
+        s->offsets[i] = offset;
+        switch (header_ver) {
+        case 1:
+            offset += le16_to_cpu(s->chunks[i]);
+            break;
+        case 99:
+            offset += le32_to_cpu(s->chunks32[i]);
+            break;
+        }
+
+        dprintf("chunk %#"PRIx64" - %#"PRIx64" = offset %#"PRIx64" -> %#"PRIx64"\n", i * s->chunk_len, (i+1) * s->chunk_len, s->offsets[i], offset);
+    }
+    qemu_opts_del(opts);
+
+    return 0;
+
+fail:
+    fprintf(stderr, "DictZip: Error opening file: %s\n", err);
+    bdrv_unref(s->hd);
+    if (s->chunks)
+        g_free(s->chunks);
+    qemu_opts_del(opts);
+    return -EINVAL;
+}
+
+/* This callback gets invoked when we have the result in cache already */
+static void dictzip_cache_cb(void *opaque)
+{
+    DictZipAIOCB *acb = (DictZipAIOCB *)opaque;
+
+    qemu_iovec_from_buf(acb->qiov, 0, acb->buf, acb->len);
+    acb->common.cb(acb->common.opaque, 0);
+    qemu_bh_delete(acb->bh);
+    qemu_aio_unref(acb);
+}
+
+/* This callback gets invoked by the underlying block reader when we have
+ * all compressed data. We uncompress in here. */
+static void dictzip_read_cb(void *opaque, int ret)
+{
+    DictZipAIOCB *acb = (DictZipAIOCB *)opaque;
+    struct BDRVDictZipState *s = acb->s;
+    uint8_t *buf;
+    DictCache *cache;
+    int r, i;
+
+    buf = g_malloc(acb->chunks_len);
+
+    /* try to find zlib stream for decoding */
+    do {
+        for (i = 0; i < Z_STREAM_COUNT; i++) {
+            if (!(s->stream_in_use & (1 << i))) {
+                s->stream_in_use |= (1 << i);
+                acb->zStream_id = i;
+                acb->zStream = &s->zStream[i];
+                break;
+            }
+        }
+    } while(!acb->zStream);
+
+    /* sure, we could handle more streams, but this callback should be single
+       threaded and when it's not, we really want to know! */
+    assert(i == 0);
+
+    /* uncompress the chunk */
+    acb->zStream->next_in   = acb->gzipped;
+    acb->zStream->avail_in  = acb->gz_len;
+    acb->zStream->next_out  = buf;
+    acb->zStream->avail_out = acb->chunks_len;
+
+    r = inflate( acb->zStream,  Z_PARTIAL_FLUSH );
+    if ( (r != Z_OK) && (r != Z_STREAM_END) )
+        fprintf(stderr, "Error inflating: [%d] %s\n", r, acb->zStream->msg);
+
+    if ( r == Z_STREAM_END )
+        inflateReset(acb->zStream);
+
+    dprintf("inflating [%d] left: %d | %d bytes\n", r, acb->zStream->avail_in, acb->zStream->avail_out);
+    s->stream_in_use &= ~(1 << acb->zStream_id);
+
+    /* nofity the caller */
+    qemu_iovec_from_buf(acb->qiov, 0, buf + acb->offset, acb->len);
+    acb->common.cb(acb->common.opaque, 0);
+
+    /* fill the cache */
+    cache = &s->cache[s->cache_index];
+    s->cache_index++;
+    if (s->cache_index == CACHE_COUNT)
+        s->cache_index = 0;
+
+    cache->len = 0;
+    if (cache->buf)
+        g_free(cache->buf);
+    cache->start = acb->gz_start;
+    cache->buf = buf;
+    cache->len = acb->chunks_len;
+
+    /* free occupied ressources */
+    g_free(acb->qiov_gz);
+    qemu_aio_unref(acb);
+}
+
+static const AIOCBInfo dictzip_aiocb_info = {
+    .aiocb_size         = sizeof(DictZipAIOCB),
+};
+
+/* This is where we get a request from a caller to read something */
+static BlockAIOCB *dictzip_aio_readv(BlockDriverState *bs,
+        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
+        BlockCompletionFunc *cb, void *opaque)
+{
+    BDRVDictZipState *s = bs->opaque;
+    DictZipAIOCB *acb;
+    QEMUIOVector *qiov_gz;
+    struct iovec *iov;
+    uint8_t *buf;
+    size_t  start = sector_num * SECTOR_SIZE;
+    size_t  len = nb_sectors * SECTOR_SIZE;
+    size_t  end = start + len;
+    size_t  gz_start;
+    size_t  gz_len;
+    int64_t gz_sector_num;
+    int     gz_nb_sectors;
+    int     first_chunk, last_chunk;
+    int     first_offset;
+    int     i;
+
+    acb = qemu_aio_get(&dictzip_aiocb_info, bs, cb, opaque);
+    if (!acb)
+        return NULL;
+
+    /* Search Cache */
+    for (i = 0; i < CACHE_COUNT; i++) {
+        if (!s->cache[i].len)
+            continue;
+
+        if ((start >= s->cache[i].start) &&
+            (end <= (s->cache[i].start + s->cache[i].len))) {
+            acb->buf = s->cache[i].buf + (start - s->cache[i].start);
+            acb->len = len;
+            acb->qiov = qiov;
+            acb->bh = qemu_bh_new(dictzip_cache_cb, acb);
+            qemu_bh_schedule(acb->bh);
+
+            return &acb->common;
+        }
+    }
+
+    /* No cache, so let's decode */
+    /* We need to read these chunks */
+    first_chunk  = start / s->chunk_len;
+    first_offset = start - first_chunk * s->chunk_len;
+    last_chunk   = end / s->chunk_len;
+
+    gz_start = s->offsets[first_chunk];
+    gz_len = 0;
+    for (i = first_chunk; i <= last_chunk; i++) {
+        if (s->chunks32)
+            gz_len += le32_to_cpu(s->chunks32[i]);
+        else
+            gz_len += le16_to_cpu(s->chunks[i]);
+    }
+
+    gz_sector_num = gz_start / SECTOR_SIZE;
+    gz_nb_sectors = (gz_len / SECTOR_SIZE);
+
+    /* account for tail and heads */
+    while ((gz_start + gz_len) > ((gz_sector_num + gz_nb_sectors) * SECTOR_SIZE))
+        gz_nb_sectors++;
+
+    /* Allocate qiov, iov and buf in one chunk so we only need to free qiov */
+    qiov_gz = g_malloc0(sizeof(QEMUIOVector) + sizeof(struct iovec) +
+                           (gz_nb_sectors * SECTOR_SIZE));
+    iov = (struct iovec *)(((char *)qiov_gz) + sizeof(QEMUIOVector));
+    buf = ((uint8_t *)iov) + sizeof(struct iovec *);
+
+    /* Kick off the read by the backing file, so we can start decompressing */
+    iov->iov_base = (void *)buf;
+    iov->iov_len = gz_nb_sectors * 512;
+    qemu_iovec_init_external(qiov_gz, iov, 1);
+
+    dprintf("read %zd - %zd => %zd - %zd\n", start, end, gz_start, gz_start + gz_len);
+
+    acb->s = s;
+    acb->qiov = qiov;
+    acb->qiov_gz = qiov_gz;
+    acb->start = start;
+    acb->len = len;
+    acb->gzipped = buf + (gz_start % SECTOR_SIZE);
+    acb->gz_len = gz_len;
+    acb->gz_start = first_chunk * s->chunk_len;
+    acb->offset = first_offset;
+    acb->chunks_len = (last_chunk - first_chunk + 1) * s->chunk_len;
+
+    return bdrv_aio_readv(s->hd, gz_sector_num, qiov_gz, gz_nb_sectors,
+                          dictzip_read_cb, acb);
+}
+
+static void dictzip_close(BlockDriverState *bs)
+{
+    BDRVDictZipState *s = bs->opaque;
+    int i;
+
+    for (i = 0; i < CACHE_COUNT; i++) {
+        if (!s->cache[i].len)
+            continue;
+
+        g_free(s->cache[i].buf);
+    }
+
+    for (i = 0; i < Z_STREAM_COUNT; i++) {
+        inflateEnd(&s->zStream[i]);
+    }
+
+    if (s->chunks)
+        g_free(s->chunks);
+
+    if (s->offsets)
+        g_free(s->offsets);
+
+    dprintf("Close\n");
+}
+
+static int64_t dictzip_getlength(BlockDriverState *bs)
+{
+    BDRVDictZipState *s = bs->opaque;
+    dprintf("getlength -> %ld\n", s->file_len);
+    return s->file_len;
+}
+
+static BlockDriver bdrv_dictzip = {
+    .format_name     = "dzip",
+    .protocol_name   = "dzip",
+
+    .instance_size   = sizeof(BDRVDictZipState),
+    .bdrv_file_open  = dictzip_open,
+    .bdrv_close      = dictzip_close,
+    .bdrv_getlength  = dictzip_getlength,
+
+    .bdrv_aio_readv  = dictzip_aio_readv,
+};
+
+static void dictzip_block_init(void)
+{
+    bdrv_register(&bdrv_dictzip);
+}
+
+block_init(dictzip_block_init);