Current code silently changes the authentication settings
in case you try to set a password without password authentication
turned on. This is bad. Return an error instead.
If we want allow changing auth settings at runtime this should
be done explicitly using a separate monitor command, not as
side effect of set_passwd.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This reverts commit 1fba509527.
That commit converted various fprintf(stderr, ...) calls to
use error_report(); however none of these bsd-user files include
a header which gives a prototype for error_report, so this
causes compiler warnings. Since these are just straightforward
reporting of command line errors, we should handle these in the
obvious way by printing to stderr, as we do for linux-user.
There's no need to drag in the error-handling framework for this,
especially since user-mode doesn't have the "maybe we need to
send this to the monitor" issues system emulation does.
Acked-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
QOM/QTest infrastructure fixes and device conversions
* qom-test extension
* QEMUMachineInitArgs conversion to MachineState
* -machine options turned into /machine properties
* Named GPIO IRQs for devices
# gpg: Signature made Wed 28 May 2014 18:24:04 BST using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found
* remotes/afaerber/tags/qom-devices-for-peter:
ssi: Name the CS GPIO
qdev: Implement named GPIOs
machine: Make -machine opts properties of MachineState
tests: Check empty QMP output visitor
qapi: Avoid output visitor crashing if it encounters a NULL value
vl.c: Do not set 'type' property in obj_set_property()
machine: Conversion of QEMUMachineInitArgs to MachineState
qom-test: Test qom-list on link<> properties
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/rth/tcg-next:
tcg/optimize: Remember garbage high bits for 32-bit ops
tcg/optimize: Move updating of gen_opc_buf into tcg_opt_gen_mov*
tcg-sparc: Make debug_frame const
tcg-s390: Make debug_frame const
tcg-arm: Make debug_frame const
tcg-aarch64: Make debug_frame const
tcg-i386: Make debug_frame const
tcg: Allow the debug_frame data structure to be constant
tcg: Move size effects out of dh_arg
tcg: Remove sizemask and flags arguments to tcg_gen_callN
tcg: Save flags and computed sizemask in TCGHelperInfo
tcg: Register the helper info struct rather than the name
tcg: Move side effects out of dh_sizemask
tcg: Inline tcg_gen_helperN
tcg: Use helper-gen.h in tcg-op.h
tcg: Push tcg-runtime routines into exec/helper-*
tcg: Invert the inclusion of helper.h
tcg: Optimize brcond2 and setcond2 ne/eq
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For a 64-bit host, the high bits of a register after a 32-bit operation
are undefined. Adjust the temps mask for all 32-bit ops to reflect that.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Adjust the FDE to point to the code_buffer after we've copied it
to the image, rather than requiring that the backend set it prior.
This allows the backend to use read-only storage for its data.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Tidying the initialization of the args arrays at the same time.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This will let us find all the info from the hash table.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Rather than special casing them, use the standard mechanisms
for tcg helper generation.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Rather than include helper.h with N values of GEN_HELPER, include a
secondary file that sets up the macros to include helper.h. This
minimizes the files that must be rebuilt when changing the macros
for file N.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
If either the high or low pair can be resolved, we can
simplify to either a constant or to a 32-bit comparison.
Signed-off-by: Richard Henderson <rth@twiddle.net>
To get it out of the default GPIO list. This allows child devices to
use the un-named GPIO namespace without having to be SSI aware. That
is, there is no more need for machines to know about the obscure
policy where GPIO 0 is the SSI chip-select and GPIO 1..N are the
concrete class GPIOs (defined locally as 0..N-1).
This is most notable in stellaris, which uses a device which has both
SSI and concrete level GPIOs.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Implement named GPIOs on the Device layer. Listifies the existing GPIOs
stuff using string keys. Legacy un-named GPIOs are preserved by using
a NULL name string - they are just a single matchable element in the
name list.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Make machine's QemuOpts QOM properties of /machine. The properties
are automatically filled in. This opens the possibility to create
opts per machine rather than global.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Total removal of QEMUMachineInitArgs struct. QEMUMachineInitArgs's fields
are copied into MachineState. Removed duplicated fields from MachineState.
All the other changes are only mechanical refactoring, no semantic changes.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> (s390)
Reviewed-by: Michael S. Tsirkin <mst@redhat.com> (PC)
[AF: Renamed ms -> machine, use MACHINE_GET_CLASS()]
Signed-off-by: Andreas Färber <afaerber@suse.de>
But don't test their properties, otherwise we will recurse forever.
Their properties are already tested when we encounter them as child<>
properties elsewhere in the hierarchy, like /machine/unattached/...
This would have caught the crash fixed by 92b3eead.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Block pull request
# gpg: Signature made Wed 28 May 2014 13:31:15 BST using RSA key ID 81AB73C8
# gpg: Can't check signature: public key not found
* remotes/stefanha/tags/block-pull-request: (33 commits)
block/sheepdog: Don't use qerror_report()
block/sheepdog: Fix silent sd_open(), sd_create() failures
block/sheepdog: Propagate errors to open and create methods
block/sheepdog: Propagate errors through find_vdi_name()
block/sheepdog: Propagate errors through do_sd_create()
block/sheepdog: Propagate errors through sd_prealloc()
block/sheepdog: Propagate errors through get_sheep_fd()
block/sheepdog: Propagate errors through connect_to_sdog()
block/vvfat: Propagate errors through init_directories()
block/vvfat: Propagate errors through enable_write_target()
block/ssh: Propagate errors to open and create methods
block/ssh: Propagate errors through connect_to_ssh()
block/ssh: Propagate errors through authenticate()
block/ssh: Propagate errors through check_host_key()
block/ssh: Drop superfluous libssh2_session_last_errno() calls
block/rbd: Propagate errors to open and create methods
qemu-nbd: Don't use qerror_report()
blockdev: Don't use qerror_report() in do_drive_del()
blockdev: Don't use qerror_report_err() in drive_init()
docs: Define refcount_bits value
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
target-arm:
* Preliminary restructuring for EL2/EL3 support
* improve CPACR handling
* fix pxa2xx_lcd palette formats
* update highbank/midway maintainer
# gpg: Signature made Tue 27 May 2014 17:26:27 BST using RSA key ID 14360CDE
# gpg: Can't check signature: public key not found
* remotes/pmaydell/tags/pull-target-arm-20140527: (26 commits)
target-arm: A64: Register VBAR_EL3
target-arm: A64: Register VBAR_EL2
target-arm: Make vbar_write writeback to any CPREG
target-arm: A64: Generalize update_spsel for the various ELs
target-arm: A64: Generalize ERET to various ELs
target-arm: A64: Trap ERET from EL0 at translation time
target-arm: A64: Forbid ERET to higher or unimplemented ELs
target-arm: Register EL3 versions of ELR and SPSR
target-arm: Register EL2 versions of ELR and SPSR
target-arm: Add a feature flag for EL3
target-arm: Add a feature flag for EL2
target-arm: A64: Introduce aarch64_banked_spsr_index()
target-arm: Add SPSR entries for EL2/HYP and EL3/MON
target-arm: A64: Add ELR entries for EL2 and 3
target-arm: A64: Add SP entries for EL2 and 3
target-arm: c12_vbar -> vbar_el[]
target-arm: Make esr_el1 an array
target-arm: Make elr_el1 an array
target-arm: Use a 1:1 mapping between EL and MMU index
target-arm: A32: Use get_mem_index for load/stores
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Xtensa fixes queue 2014-05-26:
- fix cross-page jumps/calls at the end of TB;
- add tests for TBs and instructions crossing page boundary.
# gpg: Signature made Mon 26 May 2014 09:37:39 BST using RSA key ID F83FA044
# gpg: Can't check signature: public key not found
* remotes/xtensa/tags/20140526-xtensa:
target-xtensa: add tests for cross-page TB
target-xtensa: completely clean TLB between MMU tests
target-xtensa: fix cross-page jumps/calls at the end of TB
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
usb: usb3 streams support for usb-host and usb-redir
usb: xhci and mtp bugfixes.
# gpg: Signature made Mon 26 May 2014 09:44:09 BST using RSA key ID D3E87138
# gpg: Can't check signature: public key not found
* remotes/kraxel/tags/pull-usb-7:
usb-host-libusb: Set stream id when submitting bulk-stream transfers
usb-host-libusb: Add alloc / free streams ops
usb-host-libusb: Fill in endpoint max_streams when available
usb-redir: Add support for bulk streams
usb-mtp: handle usb_mtp_get_object failure
usb-mtp: handle lseek failure
usb-mtp: use bool to track MTPObject init status
xhci: add xhci_get_flag
xhci: add endpoint cap on express bus only
xhci: child detach fix
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
qerror_report() is a transitional interface to help with converting
existing HMP commands to QMP. It should not be used elsewhere.
Replace by error_report().
Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Completes the conversion to Error started in commit 015a103^..d5124c0.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
libssh2_session_last_error() already returns the error code.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
qerror_report() is a transitional interface to help with converting
existing HMP commands to QMP. It should not be used elsewhere.
Replace by error_report().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
qerror_report() is a transitional interface to help with converting
existing HMP commands to QMP. It should not be used elsewhere.
do_drive_del() is an HMP command that won't be converted to QMP (we'll
create a new QMP command instead). It uses both qerror_report() and
error_report(). Convert the former to the latter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
qerror_report_err() is a transitional interface to help with
converting existing HMP commands to QMP. It should not be used
elsewhere.
drive_init() is not meant to be used by QMP commands. It uses both
qerror_report_err() and error_report(). Convert the former to the
latter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The 'refcount_bits' term used in the description of refcount block entry is
not defined in the specification. The definition is added in the
'refcount_order' section where refcount_bits was used as 'width in bits'.
Signed-off-by: Maria Kustova <maria.k@catit.be>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This makes use of op_blocker and blocks all the operations except for
commit target, on each BlockDriverState->backing_hd.
The asserts for op_blocker in bdrv_swap are removed because with this
change, the target of block commit has at least the backing blocker of
its child, so the assertion is not true. Callers should do their check.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
We need to handle the coming backing_blocker properly, so don't open
code the assignment, instead, call bdrv_set_backing_hd to change
backing_hd.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
It makes no sense to check for "any" blocker on bs, we are here only
because of the mechanical conversion from in_use to op_blockers. Remove
it now, and let the callers check specific operation types. Backup and
mirror already have it, add checker to stream and commit.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This drops BlockDriverState.in_use with op_blockers:
- Call bdrv_op_block_all in place of bdrv_set_in_use(bs, 1).
- Call bdrv_op_unblock_all in place of bdrv_set_in_use(bs, 0).
- Check bdrv_op_is_blocked() in place of bdrv_in_use(bs).
The specific types are used, e.g. in place of starting block backup,
bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKUP, ...).
There is one exception in block_job_create, where
bdrv_op_blocker_is_empty() is used, because we don't know the operation
type here. This doesn't matter because in a few commits away we will drop
the check and move it to callers that _do_ know the type.
- Check bdrv_op_blocker_is_empty() in place of assert(!bs->in_use).
Note: there is only bdrv_op_block_all and bdrv_op_unblock_all callers at
this moment. So although the checks are specific to op types, this
changes can still be seen as identical logic with previously with
in_use. The difference is error message are improved because of blocker
error info.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
BlockDriverState.op_blockers is an array of lists with BLOCK_OP_TYPE_MAX
elements. Each list is a list of blockers of an operation type
(BlockOpType), that marks this BDS as currently blocked for a certain
type of operation with reason errors stored in the list. The rule of
usage is:
* BDS user who wants to take an operation should check if there's any
blocker of the type with bdrv_op_is_blocked().
* BDS user who wants to block certain types of operation, should call
bdrv_op_block (or bdrv_op_block_all to block all types of operations,
which is similar to the existing bdrv_set_in_use()).
* A blocker is only referenced by op_blockers, so the lifecycle is
managed by caller, and shouldn't be lost until unblock, so typically
a caller does these:
- Allocate a blocker with error_setg or similar, call bdrv_op_block()
to block some operations.
- Hold the blocker, do his job.
- Unblock operations that it blocked, with the same reason pointer
passed to bdrv_op_unblock().
- Release the blocker with error_free().
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Currently, test 089 uses $QEMU_IMG info manually in order to obtain the
according output. However, the iotests should generally use _img_info as
this filters out more irrelevant information such as the host image size
or format specific information. Therefore, test 089 should use _img_info
as well.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The current flow of canceling a thread from THREAD_ACTIVE state is:
1) Caller wants to cancel a request, so it calls thread_pool_cancel.
2) thread_pool_cancel waits on the conditional variable
elem->check_cancel.
3) The worker thread changes state to THREAD_DONE once the task is
done, and notifies elem->check_cancel to allow thread_pool_cancel
to continue execution, and signals the notifier (pool->notifier) to
allow callback function to be called later. But because of the
global mutex, the notifier won't get processed until step 4) and 5)
are done.
4) thread_pool_cancel continues, leaving the notifier signaled, it
just returns to caller.
5) Caller thinks the request is already canceled successfully, so it
releases any related data, such as freeing elem->common.opaque.
6) In the next main loop iteration, the notifier handler,
event_notifier_ready, is called. It finds the canceled thread in
THREAD_DONE state, so calls elem->common.cb, with an (likely)
dangling opaque pointer. This is a use-after-free.
Fix it by calling event_notifier_ready before leaving
thread_pool_cancel.
Test case update: This change will let cancel complete earlier than
test-thread-pool.c expects, so update the code to check this case: if
it's already done, done_cb sets .aiocb to NULL, skip calling
bdrv_aio_cancel on them.
Reported-by: Ulrich Obergfell <uobergfe@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This triggers if bs->drv becomes NULL in a concurrent request. This is
currently only the case when corruption prevention kicks in (i.e. at
most once per image, and after that it produces I/O errors).
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Cover basic aspects and API usage for QemuOpt. The current implementation
covers the API's planned to be changed by Chunyan Liu in his QEMUOptionParameter
replacement/cleanup job.
Other APIs should be covered in future improvements.
[Squashing in a small fix "QemuOpt: use qemu_find_opts_err() to avoid
output on stderr in tests".
qemu_find_opts() calls error_report() instead of propagating the Error
object. It is undesirable to clutter test case output with error
messages from a passing test.
Use qemu_find_opts_err() to avoid the output on stderr.
--Stefan]
Signed-off-by: Leandro Dorileo <l@dorileo.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
We should allow testing this on tmpfs. Any cache setting in iotests
should try to obey $CACHEMODE.
The cache mode is still "none" by default but overridable
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
console: multiwindow support for text terminal QemuConsoles
console: small fixes
# gpg: Signature made Mon 26 May 2014 09:17:27 BST using RSA key ID D3E87138
# gpg: Can't check signature: public key not found
* remotes/kraxel/tags/pull-console-1:
console: add kbd_put_keysym_console
console: rework text terminal cursor logic
console: update text terminal surface unconditionally
console: nicer initial screen
console: Abort on property access errors
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
gtk: ui overhaul, multiwindow support.
# gpg: Signature made Mon 26 May 2014 08:54:55 BST using RSA key ID D3E87138
# gpg: Can't check signature: public key not found
* remotes/kraxel/tags/pull-gtk-7: (24 commits)
gtk: workaround gtk2 vte resize issue
gtk: window sizing overhaul
gtk: zap unused global_state
gtk: Add handling for the xfree86 keycodes
gtk: enable untabify for gfx
gtk: detached window pointer grabs
gtk: update all windows on mouse mode changes
gtk: fix grab checks
gtk: update gd_update_caption
gtk: skip keyboard grab when hover autograb is active
gtk: keep track of grab owner
gtk: add gd_grab trace event
gtk: add tab to trace events
gtk: allow moving tabs to windows and back.
gtk: simplify resize
gtk: use device type as label
gtk: support multiple gfx displays
gtk: move vga state into VirtualGfxConsole
gtk: VirtualConsole restruction
gtk: remove page numbering assumtions from the code
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
input: add event routing and multiseat support.
input: misc bugfixes and minor improvements.
# gpg: Signature made Mon 26 May 2014 07:44:29 BST using RSA key ID D3E87138
# gpg: Can't check signature: public key not found
* remotes/kraxel/tags/pull-input-9:
docs: add multiseat.txt
usb: add input routing support for tablet and keyboard
sdl: pass key event source to input layer
input: bind devices and input routing
input: switch hid mouse and tablet to the new input layer api.
input: switch hid keyboard to new input layer api.
input: keymap: add meta keys
input: add name to input_event_key_number
input: add qemu_input_key_number_to_qcode
input (curses): mask keycodes to remove modifier bits
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
trivial patches for 2014-05-26
# gpg: Signature made Mon 26 May 2014 08:17:08 BST using RSA key ID A4C3D7DB
# gpg: Can't check signature: public key not found
* remotes/mjt/tags/trivial-patches-2014-05-26: (23 commits)
libcacard: remove useless initializers
net: cadence_gem: Fix top comment
bsd-user: replace fprintf(stderr, ...) with error_report()
audio: replace fprintf(stderr, ...) with error_report() in audio
libcacard: fix wrong array expansion logic
libcacard/vcard_emul_nss: Drop a redundant conditional
libcacard: Convert two leftover realloc() to GLib
libcacard/vreader: Tighten assertion to clarify intent
libcacard/vreader: Drop broken recovery from failed assertion
libcacard: Plug memory leaks around vreader_get_reader_list()
libcacard/vscclient: Bury some dead code
vl: fix 'name' option to work with -readconfig
configure: Put tempfiles in a subdir of the build directory
dma-helpers: avoid calling dma_bdrv_unmap() twice
arch_init: replace fprintf(stderr, ...) with error_report()
pci: move dereferencing of root only after verifying valid root pointer
jazz_led: Add missing break in switch case
bswap.h: Rename ldl_p, stl_p, etc to ldl_he_p, stl_he_p, etc
configure: Automatically select GTK+ 3.0 if GTK+ 2.0 is unavailable
nbd: Miscellaneous typo fixes.
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/mwalle/tags/lm32-semihosting/20140524:
lm32: remove lm32_sys
test: lm32: use semihosting for testing
target-lm32: add semihosting support
test: lm32: make test cases independent
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/rth/tcg-mips: (24 commits)
tcg-mips: Enable direct chaining of TBs
tcg-mips: Simplify movcond
tcg-mips: Simplify brcond2
tcg-mips: Improve setcond eq/ne vs zeros
tcg-mips: Simplify setcond2
tcg-mips: Simplify brcond
tcg-mips: Simplify setcond
tcg-mips: Commonize opcode implementations
tcg-mips: Improve add2/sub2
tcg-mips: Hoist args loads
tcg-mips: Fix subtract immediate range
tcg-mips: Name the opcode enumeration
tcg-mips: Use EXT for AND on mips32r2
tcg-mips: Use T9 for TCG_TMP1
tcg-mips: Introduce TCG_TMP0, TCG_TMP1
tcg-mips: Rearrange register allocation
tcg-mips: Convert to new_ldst
tcg-mips: Convert to new qemu_l/st helpers
tcg-mips: Move softmmu slow path out of line
tcg-mips: Split large ldst offsets
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The SRS instruction was using a hardcoded 0 for the memory
accesses. This happens to be OK since the SRS instruction is
UNPREDICTABLE in User and System modes, but is awkward if we
want to rearrange the MMU index uses. Switch to using
get_mem_index() like all the other accesses.
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1400980132-25949-4-git-send-email-edgar.iglesias@gmail.com
In ARMv7 the CPACR register allows to control access rights to
coprocessor 0-13 interfaces. Bits corresponding to unimplemented
coprocessors should be RAZ/WI. Bits ASEDIS, D32DIS, TRCDIS are
UNK/SBZP if VFP is not implemented and RAO/WI in some cases.
Treating TRCDIS as RAZ/WI since we neither implement a trace
macrocell nor a CP14 interface to the trace macrocell registers.
Since CPACR bits for VFP/Neon access are honoured with the CPACR_FPEN
bit in the TB flags, flushing the TLB is not necessary anymore.
Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch>
Message-id: 1400532968-30668-1-git-send-email-aggelerf@ethz.ch
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The pxa2xx palette entry "16bpp plus transparency" format is
xxxxxxxTRRRRR000GGGGGG00BBBBB000, and "18bpp plus transparency" is
xxxxxxxTRRRRRR00GGGGGG00BBBBBB00.
Correct errors in the code for reading these and converting
them to the internal format. In particular, the buggy code
was attempting to mask out bit 24 of a uint16_t, which
Coverity spotted as an error.
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1400233901-31785-1-git-send-email-peter.maydell@linaro.org
Use tb->pc instead of dc->pc to check for cross-page jumps.
When TB translation stops at the page boundary dc->pc points to the next
page allowing chaining to TBs in it, which is wrong.
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Add display property to the keyboard.
Add display and head properties to the tablet.
If properties are set bind device to the display specified to
setup input routing.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add function to bind input devices to display devices. Implementing
input routing on top of this: Events coming from the display device in
question are routed to the input device bound to it (if there is one).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Minimal patch to get the switchover done. We continue processing ps/2
scancodes for now as they are part of the live migration stream. Fixing
that, then mapping directly from QKeyValue to HID keycodes is left as
excercise for another day.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Without the mask, control bits are passed on in the keycode, generating
incorrect PS/2 sequences when SHIFT, ALT, etc are held down.
Cc: qemu-stable@nongnu.org
Signed-off-by: Andrew Oates <andrew@aoates.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
libcacard has many functions which initializes local variables
at declaration time, which are always assigned some values later
(often right after declaration). Clean up these initializers.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Replace fprintf(stderr,...) with error_report() in files bsd-user/*.
The trailing "\n"s of the @fmt argument have been removed
because @fmt of error_report() should not contain newline.
Signed-off-by: Le Tan <tamlokveer@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Replace fprintf(stderr,...) with error_report() in files audio/*.
The trailing "\n"s of the @fmt argument have been removed
because @fmt of error_report() should not contain newline.
Signed-off-by: Le Tan <tamlokveer@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Stop setting nchildren to -1. Use separate bool variable to track
whenever we've already fetched the child objects instead.
Also make nchildren unsigned.
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Major overhaul for window size handling. This basically switches qemu
over to use geometry hints for the window manager instead of trying to
get the job done with widget resize requests. This allows to specify
better what we need and also avoids window resizes.
FIXME: on gtk2 someone overwrites the geometry hints :(
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Currently only evdev keycodes are handled by the gtk-ui. SDL has
code to handle both. This patch adds similar processing so that
both keycode types will be handled via the gtk-ui.
Signed-off-by: Bruce Rogers <brogers@suse.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
It's pointless. With grab on hover enabled the keyboard grab
is already active when you press Ctrl-Alt-G ;)
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
"View->Detach tab" will move to tab to a new window.
Simply closing the window will move it back into a notebook tab.
The label will be permamently stored in VirtualConsole->label,
so it can easily be reused to (re-)label tabs and windows.
Works for vte tabs only for now. pointer/kbd grab code needs
adaptions before we can enable it for gfx tabs too.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Simply ask for a small window size. When the widgets don't fit in gtk
will automatically make the window large enougth to make things fit, no
need to try (and fail) duplicate that logic in qemu.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Each display gets its own tab. Tab switching continues to work like it
did, just the hotkeys of the vte consoles changes in case a secondary
display is present as it will get ctrl-alt-2 assigned and the vtes are
shifted by one.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Only show the scrollbar if the content doesn't fit on the visible space.
[ kraxel: fix box packing ]
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The vte tabs simply get the size of the vga tab then, with whatever
cols and lines are fitting in. I find this bahavior more useful than
resizing the qemu window all day long.
YMMV. Comments are welcome.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The vte widget implements the scrollable interface, placing it into
a scrolled window is pointless and creates a bunch of strange effects.
Zap it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Have a global timer. Update all visible terminal windows syncronously.
Right now this can be the active_console only, but that will change
soon. The global timer will disable itself if not needed, so we only
have to care start it if needed. Which might be at console switch time
or when a new displaychangelistener is registered.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
These days each QemuConsole has its own private DisplaySurface,
so we can simply render updates all the time.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Now that we have a function to create a fancy DisplaySurface with a
message for the user, to handle non-existing graphics hardware, we
can make it more generic and use it for other things too.
This patch adds a text line to the in initial DisplaySurface, notifying
the user that the display isn't initialized yet by the guest.
You can see this in action when starting qemu with '-S'. Also when
booting ovmf in qemu (which needs a few moments to initialize itself
before it initializes the vga).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
All defined properties of QemuConsole are mandatory and no access to them
should fail. Nevertheless not checking returned errors is bad because in case
of unexpected failure it will hide the bug and cause a memory leak.
Abort in case of unexpected property access errors. This change exposed a bug
where an attempt was made to write to a read-only property "head".
Set "head" property's value at creation time and do not attempt to change it
later. This fixes the bug mentioned above.
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The currrent code in libcacard/vcard_emul_nss.c:vcard_emul_options()
has a weird bug in variable usage around expanding opts->vreader
array.
There's a helper variable, vreaderOpt, which is first needlessly
initialized to NULL, next, conditionally, only we have to expand
opts->vreader, receives array expansion from g_renew(), and next,
even if we don't actually perform expansion, the value of this
variable is assigned to the actual array, opts->vreader, which
was supposed to be expanded.
So, since we expand the array by READER_STEP increments, only
once in READER_STEP (=4) the code will work, in other 3/4 times
it will fail badly.
Fix this by not using this temp variable when expanding the
array, and by dropping the useless =NULL initializer too -
if it wasn't in place initially, compiler would have warned
us about this problem at the beginning.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Make test cases independent from from each other. Eg. if a test case needs
a specific value in register A, don't rely on the fact that it is already
set by the preceding test case.
Signed-off-by: Michael Walle <michael@walle.cc>
Now that the code_gen_buffer is constrained to not cross 256mb
regions, we are assured that we can use J to reach another TB.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Use the same table to fold comparisons as with setcond.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Emitting a single branch instead of (up to) 3, using setcond2
to generate the composite compare.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
The original code results in one too many insns per zero
present in the input. And since comparing 64-bit numbers
vs zero is common...
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Using tcg_unsigned_cond and tcg_high_cond.
Also, move the function up in the file for future cleanups.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Use the same table to fold comparisons as with setcond.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Use a table to fold comparisons to less-than.
Also, move the function up in the file for futher simplifications.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Most opcodes fall in to one of a couple of patterns.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Since we must use ADDUI, we would generate incorrect code for -32768.
Leaving off subtract of +32768 makes things easier for a follow-on patch.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
At the same time, tidy deposit by introducing tcg_out_opc_bf.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
T0 is an argument register for the n32 and n64 abis. T9 is the call
address register for the abis, and is more directly under the control
of the backend.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Use these instead of hard-coding the registers to use for temporaries.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Use FP (also known as S8) as a normal call-saved register.
Include T0 in the allocation order and call-clobbered list
even though it's currently used as a TCG temporary.
Put the argument registers at the end of the allocation order.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
In addition, fill delay slots calling the helpers and tail
call to the store helpers.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
At the same time, tidy up the call helpers, avoiding a memory reference.
Split out several subroutines. Use TCGMemOp constants. Make endianness
selectable at runtime.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
For userland builds calls will normally be in range,
and for the exit_tb opcode the branch to the epilogue.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This assures us use of J for exit_tb and goto_tb, and JAL for calling
into the generated bswap helpers.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Choosing good addresses for them means we can use JAL for helper calls.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Bailing out when PK11_FindGenericObjects() returns null ensures the
loop that follows it executes at least once. The "loop did not
execute" test right after it is useless. Drop it.
Spotted by Coverity.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
We suppress some code when we got unexpected status and assertion
checking is off:
assert(card_status == VCARD_DONE);
if (card_status == VCARD_DONE) {
int size = MIN(*receive_buf_len, response->b_total_len);
memcpy(receive_buf, response->b_data, size);
*receive_buf_len = size;
}
Such "recovery" is of dubious value even when it works. This one
doesn't: it fails to assign to receive_buf[] and *receive_buf_len,
which the callers expect.
Make the code unconditional.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The 'name' option silently failed when used in config files
( http://lists.gnu.org/archive/html/qemu-devel/2014-04/msg00378.html )
-readconfig stores the configuration read in QemuOpts. Command line
option parsing should do the same, and no more. In particular it should
not act upon the option. That needs to be done separately, where both
command line and -readconfig settings are visible in QemuOpts.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reported-by: William Dauchy <william@gandi.net>
Tested-by: William Dauchy <william@gandi.net>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(mjt: added commit message by ambru@ and subject prefix)
When libtool support was added to configure, the new temporary files
were left out of the list of files cleaned up on exit; this results
in a lot of stale .lo files being left around in /tmp. Worse, libtool
creates a /tmp/.libs directory which we can't easily clean up.
Put all our temporary files in a single temporary directory created
as a subdirectory of the build directory, so we can easily clean it up,
and don't need fragile or complicated code for creation to avoid it
clashing with temporary directories from other instances of QEMU
configure or being subject to attack from adversaries who can write
to /tmp.
Since the temporaries now live in the build tree, we have no
need to jump through hoops with a trap handler to try to remove
them when configure exits; this fixes some weird bugs where hitting
^C during a configure run wouldn't actually make it stop, because
we would run the trap handler but then not stop. (It is possible
to get the trap handler semantics right but it is convoluted largely
because of bugs in dash, so it is simpler to just avoid it.)
Note that "temporary files go in the build directory, not /tmp" is
the way autoconf behaves.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Calling dma_bdrv_unmap() twice is not necessary and may cause
potential problems if some code changes.
Signed-off-by: Jules Wang <junqing.wang@cs2c.com.cn>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Replace fprintf(stderr,...) with error_report() in the file
arch_init.c. The trailing "\n"s of the @fmt argument have been removed
because @fmt of error_report() should not contain newline.
Signed-off-by: Le Tan <tamlokveer@gmail.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
We have an unfortunate naming clash between the functions
ldl_p, stl_p, etc defined in bswap.h (which have semantics
"load/store in host endianness") and the #defines of the same
name in cpu-all.h (which have the semantics "load/store in
target endianness").
Fortunately it turns out that the only users of the bswap.h
functions are all within bswap.h itself, so we can simply
rename them to include a _he_ infix for "host endianness".
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The configure option --with-gtkabi=3.0 is still supported, but no longer
needed when GTK+-2.0 is missing. When no GTK+ ABI is selected by the
user, configure first tries 2.0, then 3.0.
For some platforms (e.g. Windows) newer binaries of GTK+ are only
available for GTK+ 3.0. Now building on these platforms is a little bit
easier.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Otherwise, the nbd client may hang waiting for the server response.
Signed-off-by: Hani Benhabiles <hani@linux.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The code in qemu_init_child_watch() wasn't clearing the 'struct
sigaction' before passing it to sigaction(); this meant that we
would block a random set of signals while executing the SIGCHLD
handler. Initialize properly by using memset() on the struct,
as we do in similar cases elsewhere.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This patch replaces g_malloc() in libcacard into g_new()
or g_new0() where appropriate (removing some init-to-zero
surrounding code), g_malloc+memcpy into g_memdup() and the
like.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Alon Levy <alevy@redhat.com>
Broken since dddbb2e1e3.
Do all the rest of the things that tcg_out_op did before
and after the big switch statement.
Signed-off-by: Richard Henderson <rth@twiddle.net>
* remotes/qmp-unstable/queue/qmp:
qapi: zero-initialize all QMP command parameters
scripts/qapi.py: Avoid syntax not supported by Python 2.4
doc: add "setup" to list of migration states
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
some s390 patches:
- Enable irqfds on s390 via the new adapter interrupt routing type.
As a prereq, fix the kvm enable_cap helpers for some compilers and
split the s390 flic into kvm and non-kvm parts.
- Enable software and hardware debugging support on s390. This needs a
kernel headers update.
# gpg: Signature made Tue 20 May 2014 12:30:54 BST using RSA key ID C6F02FAF
# gpg: Can't check signature: public key not found
* remotes/cohuck/tags/s390x-20140520:
s390x/kvm: hw debugging support via guest PER facility
s390x/kvm: software breakpoint support
s390x: remove duplicate definitions of DIAG 501
linux-headers: update
s390x/virtio-ccw: wire up irq routing and irqfds
s390x/virtio-ccw: reference-counted indicators
s390x: add I/O adapter registration
s390x: split flic into kvm and non-kvm parts
kvm: Fix enable_cap helpers on older gcc
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/bonzini/scsi-next:
megasas: remove buildtime strings
block: iscsi build fix if LIBISCSI_FEATURE_IOVECTOR is not defined
virtio-scsi: Plug memory leak on virtio_scsi_push_event() error path
scsi: Document intentional fall through in scsi_req_length()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In general QMP command parameter values are specified by consumers of the
QMP/HMP interface, but in the case of optional parameters these values may
be left uninitialized.
It is considered a bug for code to make use of optional parameters that have
not been flagged as being present by the marshalling code (via corresponding
has_<parameter> parameter), however our marshalling code will still pass
these uninitialized values on to the corresponding QMP function (to then
be ignored). Some compilers (clang in particular) consider this unsafe
however, and generate warnings as a result. As reported by Peter Maydell:
This is something clang's -fsanitize=undefined spotted. The
code generated by qapi-commands.py in qmp-marshal.c for
qmp_marshal_* functions where there are some optional
arguments looks like this:
bool has_force = false;
bool force;
mi = qmp_input_visitor_new_strict(QOBJECT(args));
v = qmp_input_get_visitor(mi);
visit_type_str(v, &device, "device", errp);
visit_start_optional(v, &has_force, "force", errp);
if (has_force) {
visit_type_bool(v, &force, "force", errp);
}
visit_end_optional(v, errp);
qmp_input_visitor_cleanup(mi);
if (error_is_set(errp)) {
goto out;
}
qmp_eject(device, has_force, force, errp);
In the case where has_force is false, we never initialize
force, but then we use it by passing it to qmp_eject.
I imagine we don't then actually use the value, but clang
complains in particular for 'bool' variables because the value
that ends up being loaded from memory for 'force' is not either
0 or 1 (being uninitialized stack contents).
Fix this by initializing all QMP command parameters to {0} in the
marshalling code prior to passing them on to the QMP functions.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
The Python "except Foo as x" syntax was only introduced in
Python 2.6, but we aim to support Python 2.4 and later.
Use the old-style "except Foo, x" syntax instead, thus
fixing configure/compile on systems with older Python.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Character backend open hasn't been fully converted to the Error API.
Some opens fail without setting an error. qmp_chardev_add() needs to
detect when that happens, and set a generic error. Explain that in a
comment, and inline error_is_set() for clarity.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Using error_is_set(ERRP) to find out whether a function failed is
either wrong, fragile, or unnecessarily opaque. It's wrong when ERRP
may be null, because errors go undetected when it is. It's fragile
when proving ERRP non-null involves a non-local argument. Else, it's
unnecessarily opaque (see commit 84d18f0).
The error_is_set(errp) in qemu_chr_new_from_opts() is merely fragile,
because the callers never pass a null errp argument.
Make the code more robust and more obviously correct: receive the
error in a local variable, then propagate it through the parameter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Using error_is_set(errp) to check whether a function call failed is
fragile: it breaks when errp is null. Check perfectly suitable return
values instead when possible. As far as I can tell, errp can't be
null there, but this is more robust and more obviously correct
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Separate the search for a working addrinfo from the code that does
something with it. Makes for a clearer search loop.
Use a local Error * to simplify resetting the error in the search
loop.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
On a slow VM (e.g., nested), you see the "setup" state when you query the
migration status.
Signed-off-by: Peter Feiner <peter@gridcentric.ca>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Using __DATE__ or __TIME__ in binary pkgs changes the checksum of
compiled binaries if they get rebuilt, even if there are no other
source changes. Replace the dynamic strings with some equally
informative static strings.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch makes use of the hw debugging support in kvm (provided by the guest's
PER facility) on s390. It enables the following features, available using the
gdbserver:
- single-stepping
- hw breakpoints
- hw watchpoints
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This patch allows to insert and remove sw breakpoints using the QEMU gdbserver
on s390 as well as to interrupt execution on a breakpoint hit when running
with KVM enabled.
Whenever a software breakpoint is inserted, common code calls kvm ioctl
KVM_UPDATE_GUEST_DEBUG. As this method's default on s390 is to return an error
if not implement, the insertion will fail. Therefore, KVM also has to be
updated in order to make use of software breakpoints.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
When restoring the previously saved instruction in
kvm_arch_remove_sw_breakpoint(), we only restored one byte. Let's use
the sizeof() operator to make sure we restore the entire instruction.
While we are at it, let's remove the duplicate definitions of DIAG 501
and replace its size (used when reading/writing the instruction) with
a sizeof() operator to make the code self explaining and less error-prone.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Make use of the new s390 adapter irq routing support to enable real
in-kernel irqfds for virtio-ccw with adapter interrupts.
Note that s390 doesn't provide the common KVM_CAP_IRQCHIP capability, but
rather needs KVM_CAP_S390_IRQCHIP to be enabled. This is to ensure backward
compatibility.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Make code using the same indicators point to a single allocated structure
that is freed when the last user goes away.
This will be used by the irqfd code to unmap addresses after the last user
is gone.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Introduce a common parent class for both cases, where kvm and non-kvm
can hook up callbacks. This will be used by follow-on patches for
adapter registration and mapping.
We now always have a flic, regardless of whether we use kvm; the
non-kvm implementation just doesn't do anything.
Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Commit 40f1ee27aa introduced handy helpers for enable_cap calls on
vcpu and vm level. Unfortunately some older gcc versions (4.7.1, 4.6)
seem to choke on signedness detection in inline created variables:
target-ppc/kvm.c: In function 'kvmppc_booke_watchdog_enable':
target-ppc/kvm.c:1302:21: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
target-ppc/kvm.c: In function 'kvmppc_set_papr':
target-ppc/kvm.c:1504:21: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
However - thanks to Thomas Huth for the suggestion - we can just cast the
offending potentially 0 value to a signed type, making the comparison signed.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Block patches
# gpg: Signature made Mon 19 May 2014 15:21:14 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream: (22 commits)
block: optimize zero writes with bdrv_write_zeroes
blockdev: add a function to parse enum ids from strings
util: add qemu_iovec_is_zero
qcow1: Stricter backing file length check
qcow1: Validate image size (CVE-2014-0223)
qcow1: Validate L2 table size (CVE-2014-0222)
qcow1: Check maximum cluster size
qcow1: Make padding in the header explicit
curl: Add usage documentation
curl: Add sslverify option
curl: Remove broken parsing of options from url
curl: Fix build when curl_multi_socket_action isn't available
qemu-iotests: Fix blkdebug in VM drive in 030
qemu-iotests: Fix core dump suppression in test 039
iotests: Add test for the JSON protocol
block: Allow JSON filenames
check-qdict: Add test for qdict_join()
qdict: Add qdict_join()
block: add test for vhdx image created by Disk2VHD
block: vhdx - account for identical header sections
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Commit b03c380 introduced the function
iscsi_allocationmap_is_allocated(), however it is only used within a
code block that is conditionally compiled. This produces a warning
(error with -werror) of "defined but not used" for the the function, if
LIBISCSI_FEATURE_IOVECTOR is not defined.
This wraps iscsi_allocationmap_is_allocated() in the same conditional.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add a U suffix to avoid shifting into the sign bit (which is
undefined behaviour in C).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
linux kernel 3.12 has changed intel-hda
driver to always check for FIFORDY, this
causes long hangs in guest since QEMU
always has this bit set to 0. We now simply set
it to 1 always, since we're synchronous anyway
and always ready to receive the stream
Signed-off-by: Stanislav Vorobiov <s.vorobiov@samsung.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* remotes/qmp-unstable/queue/qmp:
qapi: skip redundant includes
monitor: Add netdev_del id argument completion.
monitor: Add netdev_add type argument completion.
monitor: Add set_link arguments completion.
monitor: Add chardev-add backend argument completion.
monitor: Add chardev-remove command completion.
monitor: Convert sendkey to use command_completion.
qapi: Show qapi-commands.py invocation in qapi-code-gen.txt
qapi: Replace uncommon use of the error API by the common one
tests: Don't call visit_end_struct() after visit_start_struct() fails
hw: Don't call visit_end_struct() after visit_start_struct() fails
hmp: Call visit_end_struct() after visit_start_struct() succeeds
qapi: Un-inline visit of implicit struct
qapi-visit.py: Clean up a sloppy use of field prefix
qapi: Clean up shadowing of parameters and locals in inner scopes
qapi-visit.py: Clean up confusing push_indent() / pop_indent() use
qapi: Replace start_optional()/end_optional() by optional()
qapi: Remove unused Visitor callbacks start_handle(), end_handle()
qapi: Normalize marshalling's visitor initialization and cleanup
qapi: Update qapi-code-gen.txt example to match current code
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Input code update:
- add keycode mapping helpers to core.
- start switching devices to new input api.
- misc bugfixes.
# gpg: Signature made Fri 16 May 2014 07:43:45 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-input-8:
input: sparc32 kbd: claim en-us layout
input: sparc32 kbd: fix some key mappings
input: remove sparc keymap hack
input: switch sparc32 kbd to new input api
input: switch ps/2 mouse to new input api
input: switch ps/2 kbd to new input api
input: use KeyValue directly in sendkey monitor command
input: add qemu_input_handler_deactivate
input: key mapping helpers
ps2: set ps/2 output buffer size as the same as kernel
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
this patch tries to optimize zero write requests
by automatically using bdrv_write_zeroes if it is
supported by the format.
This significantly speeds up file system initialization and
should speed zero write test used to test backend storage
performance.
I ran the following 2 tests on my internal SSD with a
50G QCOW2 container and on an attached iSCSI storage.
a) mkfs.ext4 -E lazy_itable_init=0,lazy_journal_init=0 /dev/vdX
QCOW2 [off] [on] [unmap]
-----
runtime: 14secs 1.1secs 1.1secs
filesize: 937M 18M 18M
iSCSI [off] [on] [unmap]
----
runtime: 9.3s 0.9s 0.9s
b) dd if=/dev/zero of=/dev/vdX bs=1M oflag=direct
QCOW2 [off] [on] [unmap]
-----
runtime: 246secs 18secs 18secs
filesize: 51G 192K 192K
throughput: 203M/s 2.3G/s 2.3G/s
iSCSI* [off] [on] [unmap]
----
runtime: 8mins 45secs 33secs
throughput: 106M/s 1.2G/s 1.6G/s
allocated: 100% 100% 0%
* The storage was connected via an 1Gbit interface.
It seems to internally handle writing zeroes
via WRITESAME16 very fast.
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* remotes/bonzini/scsi-next:
[PATCH] block/iscsi: bump year in copyright notice
block/iscsi: allow cluster_size of 4K and greater
block/iscsi: clarify the meaning of ISCSI_CHECKALLOC_THRES
block/iscsi: speed up read for unallocated sectors
block/iscsi: allow fall back to WRITE SAME without UNMAP
MAINTAINERS: mark megasas as maintained
megasas: Add MSI support
megasas: Enable MSI-X support
megasas: Implement LD_LIST_QUERY
scsi: Improve error messages more
scsi-disk: Improve error messager if can't get version number
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
this adds a generic function to recover the enum id of a parameter
given as a string.
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Like qcow2 since commit 6d33e8e7, error out on invalid lengths instead
of silently truncating them to 1023.
Also don't rely on bdrv_pread() catching integer overflows that make len
negative, but use unsigned variables in the first place.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
A huge image size could cause s->l1_size to overflow. Make sure that
images never require a L1 table larger than what fits in s->l1_size.
This cannot only cause unbounded allocations, but also the allocation of
a too small L1 table, resulting in out-of-bounds array accesses (both
reads and writes).
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Too large L2 table sizes cause unbounded allocations. Images actually
created by qemu-img only have 512 byte or 4k L2 tables.
To keep things consistent with cluster sizes, allow ranges between 512
bytes and 64k (in fact, down to 1 entry = 8 bytes is technically
working, but L2 table sizes smaller than a cluster don't make a lot of
sense).
This also means that the number of bytes on the virtual disk that are
described by the same L2 table is limited to at most 8k * 64k or 2^29,
preventively avoiding any integer overflows.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Huge values for header.cluster_bits cause unbounded allocations (e.g.
for s->cluster_cache) and crash qemu this way. Less huge values may
survive those allocations, but can cause integer overflows later on.
The only cluster sizes that qemu can create are 4k (for standalone
images) and 512 (for images with backing files), so we can limit it
to 64k.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
We were relying on all compilers inserting the same padding in the
header struct that is used for the on-disk format. Let's not do that.
Mark the struct as packed and insert an explicit padding field for
compatibility.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
This allows qemu to use images over https with a self-signed certificate. It
defaults to verifying the certificate.
Signed-off-by: Matthew Booth <mbooth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The block layer now supports a generic json syntax for passing option parameters
explicitly, making parsing of options from the url redundant.
Signed-off-by: Matthew Booth <mbooth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The test test_stream_pause in this class uses vm.pause_drive, which
requires a blkdebug driver on top of image, otherwise it's no-op and the
test running is undeterministic.
So add it.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The shell script attempts to suppress core dumps like this:
old_ulimit=$(ulimit -c)
ulimit -c 0
$QEMU_IO arg...
ulimit -c "$old_ulimit"
This breaks the test hard unless the limit was zero to begin with!
ulimit sets both hard and soft limit by default, and (re-)raising the
hard limit requires privileges. Broken since it was added in commit
dc68afe.
Could be fixed by adding -S to set only the soft limit, but I'm not
sure how portable that is in practice. Simply do it in a subshell
instead, like this:
(ulimit -c 0; exec $QEMU_IO arg...)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
If the filename given to bdrv_open() is prefixed with "json:", parse the
rest as a JSON object and merge the result into the options QDict. If
there are conflicts, the options QDict takes precedence.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This adds a test for VHDX images created by Microsoft's tool, Disk2VHD.
VHDX images created by this tool have 2 identical header sections, with
identical sequence numbers. This makes sure we detect VHDX images with
identical headers, and do not flag them as corrupt.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The VHDX spec v1.00 declares that "a header is current if it is the only
valid header or if it is valid and its SequenceNumber field is greater
than the other header’s SequenceNumber field. The parser must only use
data from the current header. If there is no current header, then the
VHDX file is corrupt."
However, the Disk2VHD tool from Microsoft creates a VHDX image file that
has 2 identical headers, including matching checksums and matching
sequence numbers. Likely, as a shortcut the tool is just writing the
header twice, for the active and inactive headers, during the image
creation. Technically, this should be considered a corrupt VHDX file
(at least per the 1.00 spec, and that is how we currently treat it).
But in order to accomodate images created with Disk2VHD, we can safely
create an exception for this case. If we find identical sequence
numbers, then we check the VHDXHeader-sized chunks of each 64KB header
sections (we won't rely just on the crc32c to indicate the headers are
the same). If they are identical, then we go ahead and use the first
one.
Reported-by: Nerijus Baliūnas <nerijus@users.sourceforge.net>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
g_sequence_lookup is not supported by glib < 2.28. The usage
of g_sequence_lookup is not essential in this context (it's a
safeguard against duplicate values in the help message).
Removing the call enables the build on all platforms and
does not change the operation of the help function.
Signed-off-by: Mike Day <ncmike@ncultra.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
bdrv_is_allocated() shouldn't return true for sectors that are
unallocated, but after the end of a short backing file, even though
such sectors are (correctly) marked as containing zeros.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
The purpose of this change is to help create a json file containing
common definitions; each bit of generated C code must be emitted
only one time.
A second history global to all QAPISchema instances has been added
to detect when a file is included more than one time and skip these
includes.
It does not act as a stack and the changes made to it by the
__init__ function are propagated back to the caller so it's really
a global state.
Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
With sparc keyboard going directly from QKeyValue to sparc keycodes
this should not be needed any more.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Nasty 0xe0 logic is gone. We map through QKeyCode now, giving us a
nice, readable mapping table.
Quick smoke test in OpenFirmware looks ok. Careful check from arch
maintainers would be very nice, especially on the capslock and numlock
logic. I'm not fully sure whenever I got it translated correctly and
also what it is supposed to do in the first place ...
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
According to the PS/2 Mouse/Keyboard Protocol, the keyboard outupt buffer size
is 16 bytes. And the PS2_QUEUE_SIZE 256 was introduced in Qemu from the very
beginning.
When I started a redhat5.6 32bit guest, meanwhile tapped the keyboard as quickly as
possible, the screen would show me "i8042.c: No controller found". As a result,
I couldn't use the keyboard in the VNC client.
Previous discussion about the issue in maillist:
http://thread.gmane.org/gmane.comp.emulators.qemu/43294/focus=47180
This patch has been tested on redhat5.6 32-bit/suse11sp3 64-bit guests.
More easy meathod to reproduce:
1.boot a guest with libvirt.
2.connect to VNC client.
3.as you see the BIOS, bootloader, Linux booting, run the follow simply shell script:
for((i=0;i<10000000;i++)) do virsh send-key redhat5.6 KEY_A; done
Actual results:
dmesg show "i8042.c: No controller found." And the keyboard is out of work.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Make it possible to query all net clients without specifying an ID when calling
qemu_find_net_clients_except().
This also adds the add_completion_option() function which is to be used for
other commands completions as well.
Signed-off-by: Hani Benhabiles <hani@linux.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
We commonly use the error API like this:
err = NULL;
foo(..., &err);
if (err) {
goto out;
}
bar(..., &err);
Every error source is checked separately. The second function is only
called when the first one succeeds. Both functions are free to pass
their argument to error_set(). Because error_set() asserts no error
has been set, this effectively means they must not be called with an
error set.
The qapi-generated code uses the error API differently:
// *errp was initialized to NULL somewhere up the call chain
frob(..., errp);
gnat(..., errp);
Errors accumulate in *errp: first error wins, subsequent errors get
dropped. To make this work, the second function does nothing when
called with an error set. Requires non-null errp, or else the second
function can't see the first one fail.
This usage has also bled into visitor tests, and two device model
object property getters rtc_get_date() and balloon_stats_get_all().
With the "accumulate" technique, you need fewer error checks in
callers, and buy that with an error check in every callee. Can be
nice.
However, mixing the two techniques is confusing. You can't use the
"accumulate" technique with functions designed for the "check
separately" technique. You can use the "check separately" technique
with functions designed for the "accumulate" technique, but then
error_set() can't catch you setting an error more than once.
Standardize on the "check separately" technique for now, because it's
overwhelmingly prevalent.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
When visit_start_struct() fails, visit_end_struct() must not be
called. Three out of four visit_type_TestStruct() call it anyway. As
far as I can tell, visit_start_struct() doesn't actually fail there.
Fix them anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
When visit_start_struct() fails, visit_end_struct() must not be
called. rtc_get_date() and balloon_stats_all() call it anyway. As
far as I can tell, they're only used with the string output visitor,
which doesn't care. Fix them anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
When visit_start_struct() succeeds, visit_end_struct() must be called.
hmp_object_add() doesn't when a member visit fails. As far as I can
tell, the opts visitor copes okay with the misuse. Fix it anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
In preparation of error handling changes. Bonus: generates less
duplicated code.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
generate_visit_struct_fields() generates the base type's struct member
name both with and without the field prefix. Harmless, because the
field prefix is always empty there: only unboxed complex members have
a prefix, and those can't have a base type.
Clean it up anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Changing implicit indentation in the middle of generating a block
makes following the code being generated unnecessarily hard.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Semantics of end_optional() differ subtly from the other end_FOO()
callbacks: when start_FOO() succeeds, the matching end_FOO() gets
called regardless of what happens in between. end_optional() gets
called only when everything in between succeeds as well. Entirely
undocumented, like all of the visitor API.
The only user of Visitor Callback end_optional() never did anything,
and was removed in commit 9f9ab46.
I'm about to clean up error handling in the generated visitor code,
and end_optional() is in my way. No users mean no test cases, and
making non-trivial cleanup transformations without test cases doesn't
strike me as a good idea.
Drop end_optional(), and rename start_optional() to optional(). We
can always go back to a pair of callbacks when we have an actual need.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
These have never been called or implemented by anything, and their
intended use is undocumented, like all of the visitor API.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Input and output marshalling functions do it differently. Change them
to work the same: initialize the I/O visitor, use it, clean it up,
initialize the dealloc visitor, use it, clean it up.
This delays dealloc visitor initialization in output marshalling
functions, and input visitor cleanup in input marshalling functions.
No functional change, but the latter will be convenient when I change
the error handling.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
tcg/s390 updates
# gpg: Signature made Thu 15 May 2014 17:24:40 BST using RSA key ID 4DD0279B
# gpg: Can't check signature: public key not found
* remotes/rth/tags/pull-tcg-s390-20140515:
tcg-s390: Implement direct chaining of TBs
tcg-s390: Don't force -march=z990
tcg-s390: Improve setcond
tcg-s390: Allow immediate operands to add2 and sub2
tcg-s390: Implement tcg_register_jit
tcg-s390: Use more risbg in the tlb sequence
tcg-s390: Move ldst helpers out of line
tcg-s390: Convert to new ldst opcodes
tcg-s390: Integrate endianness into TCGMemOp
tcg-s390: Convert to TCGMemOp
tcg-s390: Fix off-by-one in wraparound andi
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
seabios: update to 1.7.5-rc1
ipxe: update to current git
# gpg: Signature made Thu 15 May 2014 13:29:37 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-roms-2:
ipxe: update to current git
seabios: update to 1.7.5-rc1
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
virtio update
looks like a quiet week
minor bugfix in virtio by myself
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Tue 13 May 2014 14:37:23 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream:
virtio: allow mapping up to max queue size
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
migration/next for 20140515
# gpg: Signature made Thu 15 May 2014 02:32:25 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found
* remotes/juanquintela/tags/migration/20140515:
usb: fix up post load checks
migration: show average throughput when migration finishes
savevm: Remove all the unneeded version_minimum_id_old (rest)
savevm: Remove all the unneeded version_minimum_id_old (usb)
Split ram_save_block
arch_init: Simplify code for load_xbzrle()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
While we still require the LONG DISPLACEMENT facility, defaults
have moved on since then. Don't override the system compiler,
whose default may be set to z9-109 or later.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
target-arm queue:
* update libvixl to 1.4
* remove version_minimum_id_old from ARM devices
* stellaris_enet tx/rx/migration overhaul
* various minor fixes for coverity issues
# gpg: Signature made Tue 13 May 2014 16:25:12 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-20140513:
hw/arm/omap_gpmc: Avoid buffer overrun filling prefetch FIFO
hw/arm/stellaris: Correct handling of GPTM TAR register
hw/timer/exynos4210_mct: Avoid overflow in exynos4210_ltick_recalc_count
hw/dma/omap_dma: Add (uint32_t) casts when shifting uint16_t by 16
hw/arm/omap1: Avoid unintended sign extension writing omap_rtc YEARS_REG
hw/net/cadence_gem: Remove dead code
hw/intc/allwinner-a10-pic: Add missing 'break'
target-arm/helper.c: Don't flush the TLB if SCTLR is rewritten unchanged
hw/net/stellaris_enet: Convert to vmstate
hw/net/stellaris_enet: Get rid of rx_fifo pointer
hw/net/stellaris_enet: Fix debug format strings
hw/net/stellaris_enet: Correctly implement the TR and THR registers
hw/net/stellaris_enet: Rewrite tx fifo handling code
hw/net/stellaris_enet: Correct handling of packet padding
hw/net/stellaris_enet: Restructure tx_fifo code to avoid buffer overrun
savevm: Remove all the unneeded version_minimum_id_old (arm)
disas/libvixl: Update to libvixl 1.4
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/kvm/uq/master:
pc: port 92 reset requires a low->high transition
cpu: make CPU_INTERRUPT_RESET available on all targets
apic: do not accept SIPI on the bootstrap processor
target-i386: preserve FPU and MSR state on INIT
target-i386: fix set of registers zeroed on reset
kvm: forward INIT signals coming from the chipset
kvm: reset state from the CPU's reset method
target-i386: the x86 CPL is stored in CS.selector - auto update hflags accordingly.
target-i386: set eflags prior to calling cpu_x86_load_seg_cache() in seg_helper.c
target-i386: set eflags and cr0 prior to calling cpu_x86_load_seg_cache() in smm_helper.c
target-i386: set eflags prior to calling svm_load_seg_cache() in svm_helper.c
pci-assign: limit # of msix vectors
pci-assign: Fix a bug when map MSI-X table memory failed
kvm: make one_reg helpers available for everyone
target-i386: Remove unused data from local array
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fix BT zero flag for new Intel manuals
# gpg: Signature made Mon 12 May 2014 22:26:01 BST using RSA key ID 4DD0279B
# gpg: Can't check signature: public key not found
* remotes/rth/tags/pull-tgt-i386-20140512:
target-i386: Preserve the Z bit for bt/bts/btr/btc
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Now that ipxe has separate settings for load / boot banner timeouts
re-enable the boot banner while keeping the load banner turned off,
so we don't add a delay to non-pxe boots.
git shortlog:
Adrian Jamróz (2):
[rhine] Rewrite VIA Rhine driver
[velocity] Rewrite VIA Velocity driver
Alex Williamson (4):
[romprefix] Allow ROM banner timeout to be configured independently
[autoboot] Enable infrastructure to specify an autoboot device location
[prefix] Allow prefix to specify a PCI autoboot device location
[romprefix] Store boot bus:dev.fn address as autoboot device location
Alexander Chernyakhovsky (1):
[ocsp] Handle OCSP responses that don't provide certificates
Bo Yang (1):
[build] Avoid strict-aliasing warning for gcc 4.3
Brandon Penglase (1):
[build] Add vmware build target
Christian Hesse (2):
[build] Update build system for Syslinux 6.x
[build] Fix LABEL name for .liso images
Daniel P. Berrange (1):
[zbin] Fix size used for memset in alloc_output_file
Frediano Ziglio (1):
[romprefix] Fix incorrect pointer offset in undiloader.S
Kevin Tran (1):
[tg3] Fix various tg3 issues
Marin Hannache (8):
[linux] Add missing #include <stddef.h>
[legal] Add FILE_LICENCE for valgrind headers
[legal] Add FILE_LICENCE for core/errno.c
[legal] Add FILE_LICENCE for ath9k driver headers
[legal] Add missing FILE_LICENCE declarations
[cmdline] Add "poweroff" command
[nfs] Add support for NFS protocol
[nfs] Fix an issue with the selection of a local port
Michael Brown (363):
[netdevice] Separate VLAN support from presence of VLAN-supporting drivers
[undi] Work around specific devices with known broken interrupt behaviour
[menu] Prevent character code zero from acting as a shortcut key
[menu] Prevent separators with shortcut keys from being selected
[tftp] Allow TFTP block size to be controlled via the PXE TFTP API
[pcbios] Add extra debugging messages when unhiding iPXE from memory
[nbiprefix] Set up real-mode stack before jumping to .text16
[prefix] Use %cs as implicit parameter to uninstall()
[pcbios] Inhibit all calls to INT 15,e820 and INT 15,e801 during POST
[romprefix] Display only one "Ctrl-B" prompt per PCI device during POST
[efi] Update to latest EDK2 headers
[autoboot] Split main control flow out of main() into a new function ipxe()
[efi] Add last_opened_snpdev()
[efi] Expose downloaded images via EFI_SIMPLE_FILE_SYSTEM_PROTOCOL
[efi] Add our own EFI_LOAD_FILE_PROTOCOL implementation
[efi] Fix building with newer binutils
[lkrnprefix] Allow relocation when no initrd is present
[efi] Fix minor typos in efi_image.c
[efi] Add EFI-specific debugging macros
[int13] Split out ISO9660 and El Torito definitions to separate header files
[smbios] Provide SMBIOS version number via smbios_version()
[smbios] Mangle UUIDs for SMBIOS version 2.6 and newer
[dhcp] Use PXE byte ordering for UUID in DHCP option 97
[uuid] Abstract UUID mangling code out to a separate uuid_mangle() function
[efi] Provide efi_guid_ntoa() for printing EFI GUIDs
[efi] Add "reboot" command for EFI
[cmdline] Add ability to perform a warm reboot
[efi] Enable "cpuid" command by default for EFI
[cs89x0] Remove conflicting macro definitions
[igbvf] Remove conflicting macro definitions
[prism2] Use standard type names
[efi] Fetch device path for loaded image during initialisation
[settings] Expose build architecture and platform via settings
[bios] Fix screen clearing on buggy BIOSes
[intel] Remove hardcoded offsets for descriptor ring registers
[intel] Expose functionality to be shared with intelx driver
[intel] Add intelx driver for Intel 10 Gigabit Ethernet NICs
[efi] Remove obsolete EFI I/O implementation using EFI_CPU_IO_PROTOCOL
[libc] Use __einfo() tuple as first argument to EUNIQ()
[libc] Redefine low 8 bits of error code as "platform error code"
[efi] Perform meaningful error code conversions
[efi] Add sample platform-generated error disambiguations
[netdevice] Use link-layer address as part of RNG seed
[build] Allow sparse to find compiler.h
[build] Define __WINT_TYPE__ if necessary
[build] Allow sparse to be invoked via "make C=1"
[build] Avoid sparse undeclared symbol warning for PROVIDE_SYMBOL()
[process] Mark process descriptor as static in PERMANENT_PROCESS
[realtek] Print bad MAC address in debug message when inferring no EEPROM
[build] Use -Wno-decl when running sparse
[build] Fix uses of literal 0 as a NULL pointer
[build] Fix dubious uses of bitwise operators
[build] Default to short wchar_t in stddef.h
[realtek] Use ID word to detect EEPROM presence
[errdb] Strip platform error code for non-platform-generated errors
[pxe] Convert external PXE API errors into iPXE platform-generated errors
[realtek] Allow reaction time between writing RTL_CAPR and reading RTL_CR
[romprefix] Report failure cause when unable to open payload
[realtek] Ensure EEPROM writes reach chip before starting udelay()
[dhcp] Remove obsolete bootp.h header
[netdevice] Add netdev_tx_defer() to allow drivers to defer transmissions
[realtek] Defer packets when no transmit descriptors are available
[settings] Eliminate settings "tag magic"
[smbios] Allow access to unreferenced SMBIOS strings
[smbios] Allow access to multiple instances of SMBIOS structures
[crypto] Report meaningful error when certificate chain validation fails
[build] Use $(eval) if available
[build] Provide "allXXXs" targets for all media on all platforms
[build] Add efidrv.cab target for UEFI Secure Boot signing
[netdevice] Add "chip" setting
[netdevice] Reset MAC address when asked to clear the "mac" setting
[realtek] Fix reopening of legacy-mode 8139 NIC
[crypto] Accept OCSP responses containing multiple certificates
[bzimage] Align initrd images to page boundary
[bzimage] Fix spurious uninitialised-variable warning on some gcc versions
[build] Work around bug in gcc >= 4.8
[autoboot] Use next-server from filename's settings block
[tcp] Do not send RST for unrecognised connections
[tcp] Fix comment to match code behaviour
[test] Add self-tests for base16
[base16] Generalise base16_decode() to hex_decode()
[settings] Use hex_decode() to parse hex settings
[settings] Add "hexraw" setting type
[netdevice] Add "bustype" and "busloc" settings
[settings] Add "busdevfn" setting type
[linux] Add support for accessing PCI configuration space via /proc/bus/pci
[settings] Add config/settings.h
[settings] Expose PCI configuration space via settings mechanism
[settings] Make "netX" settings block function as a symbolic link
[cmdline] Accept "netX" in iPXE commands
[lotest] Include sequence number within loopback test packets
[intel] Incorporate ring producer and consumer counters in diagnostics
[base16] Ensure base16_encode() always terminates its result string
[realtek] Report RX error detail in debug messages
[script] Allow for backslash continuation of script lines
[settings] Add support for navigation keys in "config" user interface
[realtek] Allow extra space in RX buffers
[ifmgmt] Avoid relying on global variable within ifcommon_exec()
[script] Avoid trying to read final character of a zero-length string
[legal] Add missing FILE_LICENCE declarations
[build] Fix %.licence build target
[settings] Clarify usage of the term "named setting"
[settings] Avoid potentially large stack allocations
[settings] Remove temporary name buffer parameter from parse_setting_name()
[settings] Remove default_type parameter from parse_setting_name()
[settings] Expose parse_setting_name()
[settings] Change "not-found" semantics of fetch_setting_copy()
[settings] Add fetchf_setting_copy()
[settings] Eliminate call to fetchf_named_setting() in expand_settings()
[settings] Eliminate call to store_named_setting() in nslookup.c
[settings] Remove now-unused store_named_setting()
[parseopt] Allow parsed option to be modified
[parseopt] Move parse_settings() to parseopt.c
[parseopt] Add parse_setting()
[settings] Eliminate call to storef_named_setting() in choose_exec()
[settings] Eliminate calls to {fetch,store}f_named_setting() in NVO commands
[settings] Remove now-unused fetchf_named_setting() and storef_named_setting()
[script] Allow initial whitespace on lines containing labels
[script] Allow commands following a script label
[settings] Introduce the generalised concept of a numeric setting
[cmdline] Add "inc" command
[pci] Add pci_find_next() to iterate over existent PCI devices
[cmdline] Add "pciscan" command to allow iteration over PCI devices
[udp] Move high-frequency debug messages to DBGLVL_EXTRA
[ipv6] Rename sin_{family,port} to sin6_{family,port} in struct sockaddr_in6
[tcpip] Allow binding to unspecified privileged ports (below 1024)
[settings] Expose CPUID instruction via settings mechanism
[test] Add self-tests for snprintf()
[settings] Allow numeric_setting_value() to handle long setting values
[settings] Expose memory map via settings mechanism
[params] Add support for the general concept of a form parameter list
[cmdline] Add "params" and "param" commands to manage form parameter lists
[uri] Allow URIs to incorporate a parameter list
[http] Add support for HTTP POST
[settings] Make built-in settings a linker table
[linux] Give tap devices a name and bus type
[ipv4] Generalise fragment reassembly mechanism
[netdevice] Increase maximum network-layer address length
[netdevice] Add concept of a network device index
[netdevice] Add method for generating EUI-64 address from link-layer address
[ethernet] Add support for generating multicast hash for IPv6 addresses
[linux] Apply MAC address prior to registering network device
[tcpip] Pass through network device to transport layer protocols
[neighbour] Generalise concept of neighbour discovery
[ipv4] Abstract out protocol-specific portions of "route" command
[ipv6] Replace IPv6 stack
[ipv6] Fix uninitialised-variable warning
[tcp] Reduce path MTU to 1280 bytes
[ipv6] Add inet6_aton()
[build] Work around bug in gcc >= 4.8
[neighbour] Add nstat() function to print out neighbour table
[cmdline] Add "nstat" command
[tcp] Add AF_INET6 socket opener
[udp] Add AF_INET6 socket opener
[netdevice] Add find_netdev_by_index()
[socket] Add concept of a generalised socket address converter
[ipv4] Add IPv4 socket address converter
[ipv6] Add IPv6 socket address converter
[resolv] Use sock_aton() to allow parsing of arbitrary numeric addresses
[icmp] Add support for sending ICMP echo requests
[ping] Add concept of a ping socket
[ping] Add generic ping mechanism
[ping] Add top-level ping() function to ping a host
[cmdline] Add "ping" command
[ipv6] Handle IPv6 option length correctly
[ipv6] Extract link layer addresses from router advertisements
[ipv6] Support stateless address autoconfiguration (SLAAC)
[ipv6] Treat sin6_scope_id consistently
[ipv6] Automatically choose source for link-local and multicast destinations
[pxe] Always retrieve cached DHCPACK and apply to relevant network device
[ipv6] Add ndp_tx_router_solicitation() to send router solicitations
[parseopt] Add parse_timeout()
[netdevice] Make all net_driver methods optional
[interface] Default to calling intf_restart() in response to intf_close()
[job] Allow job_progress() to return an ongoing job status code, if known
[monojob] Add timeout parameter to monojob_wait()
[monojob] Report ongoing job status as overall return status on timeout
[cmdline] Rewrite "sync" command to use monojob_wait()
[autoboot] Fix shell banner timeout
[ifmgmt] Rewrite iflinkwait() to use monojob_wait()
[cmdline] Allow "if<xxx>" commands to take options
[netdevice] Add generic concept of a network device configurator
[dhcp] Add DHCP network device configurator
[parseopt] Add parse_netdev_configurator()
[ifmgmt] Add ifconf() to carry out network device configuration
[autoboot] Use ifconf() to configure network device
[cmdline] Add "ifconf" command
[cmdline] Make "dhcp" command a synonym for "ifconf"
[dhcp] Remove obsolete dhcp() function
[ipv6] Add IPv6 network device configurator
[cmdline] Generate command option help text automatically
[pxe] Ensure cached DHCPACK is retrieved prior to network device creation
[base16] Fix comparison of signed and unsigned integers
[settings] Move user-class setting from dhcp.c to settings.c
[ipv6] Use given source address only if it is not the unspecified address
[ipv6] Add "ipv6" setting type
[dhcpv6] Add basic support for stateful and stateless DHCPv6
[ipv6] Separate the concepts of prefix and address creation
[dhcpv6] Allow stateful DHCPv6 to apply obtained IPv6 addresses
[test] Include failing code within failed test result output
[main] Defer "initialising devices" message until initialising devices
[console] Pass escape sequence context to ANSI escape sequence handlers
[pixbuf] Add generic concept of a pixel buffer
[image] Allow for non-executable image formats
[image] Add image_pixbuf() to create pixel buffer from image
[pnm] Add support for PNM images
[mucurses] Use "<ESC>[2J" ANSI escape sequence to clear screen
[console] Allow console input and output to be disabled independently
[console] Add concept of generic console configuration
[cmdline] Add "console" command to configure console
[fbcon] Add generic concept of a frame buffer console
[vesafb] Add VESA frame buffer console
[vesafb] Include raw status value within VBE error messages
[vesafb] Skip modes for which we cannot get mode information
[vesafb] Return meaningful error when no suitable mode is found
[vesafb] Select an optimal mode, rather than the first acceptable mode
[build] Fix building on OpenBSD 5.4
[console] Allow '?' as an intermediate byte in ANSI escape sequences
[mucurses] Implement curs_set() to control cursor visibility
[settings] Hide cursor when not actively editing a setting
[menu] Hide cursor when displaying menu
[fbcon] Add support for displaying a cursor
[settings] Explicitly separate the concept of a completed fetched setting
[settings] Allow for IPv6 setting types in non-IPv6 builds
[settings] Add fetch_ipv6_setting()
[dns] Add support for resolving IPv6 addresses via AAAA records
[socket] Ensure socket address structure sizes are fixed
[syslog] Add support for IPv6 syslog server
[ipv6] Add support for resolving IPv6 addresses via the "nslookup" command
[linux] Provide access to SMBIOS via /dev/mem
[dhcpv6] Use DUID-UUID form of client DUID
[settings] Force settings into alphabetical order within sections
[settings] Allow for multiple definitions of each predefined setting
[settings] Merge SETTING_IPv4 and SETTING_IPv6
[dhcpv6] Add DHCPv6 "filename" setting
[ipv6] Expose NDP-provided settings (including the DNS server)
[vesafb] Work around data corruption bug in bochs/qemu VBE implementation
[settings] Adapt user interface to fit display size
[login] Adapt user interface to fit display size
[menu] Adapt user interface to fit display size
[console] Allow consoles to update the recorded console size
[fbcon] Update the console width and height after changing mode
[lkrnprefix] Include iPXE version string in image header
[fbcon] Always draw cursor using current foreground and background colours
[console] Add centralised concept of colours and colour pairs
[mucurses] Use centralised concept of colour pairs
[cmdline] Add the "colour" and "cpair" commands
[console] Add concept of a "magic" colour
[vesafb] Set "magic" colour to transparent when a background picture is used
[build] Remove obsolete check for GNU as version 2.9.1
[ipv6] Fix compilation under FreeBSD
[build] Build ROMs used by qemu and VMware as part of "make all"
[libc] Add isprint()
[test] Add okx() macro taking an explicit file name and line number
[deflate] Add support for DEFLATE decompression
[deflate] Fix literal data length calculation
[libc] Add abs()
[uaccess] Add memcmp_user()
[test] Rewrite pnm_ok() using okx()
[test] Generalise pnm_ok() to pixbuf_ok()
[png] Add support for PNG images
[vesafb] Handle failures from fbcon_init()
[fbcon] Centre background picture on console
[fbcon] Allow for an arbitrary margin around the text area
[vesafb] Allow for an arbitrary margin around the text area
[cmdline] Rename "console" command's --bpp option to --depth
[cmdline] Add margin options to the "console" command
[fbcon] Allow ANSI CUP with missing arguments
[cmdline] Always clear screen after reconfiguring console
[intel] Add some missing PCI IDs
[dns] Support DNS search lists
[dns] Update end-of-name pointer after processing CNAME record
[dhcp] Copy exactly the required length when resizing DHCP options
[settings] Remove "uristring" setting type
[params] Use reference counters for form parameter lists
[uri] Refactor URI parsing and formatting
[image] Ensure every image has a fully resolved URI
[tcpip] Add IP statistics collection as per RFC 4293
[cmdline] Add the "ipstat" command
[prefix] Ignore PCI autoboot device location if set to 00:00.0
[tcpip] Provide tcpip_netdev() to determine the transmitting network device
[tcpip] Provide tcpip_mtu() to determine the maximum transmission unit
[tcp] Calculate correct MSS from peer address
[bzimage] Report exact initrd length via bzImage header
[realtek] Include link status register details in debug messages
[romprefix] Do not clobber stack segment when returning to BIOS
[netdevice] Mark devices as open before calling open() method
[tcp] Update window even if ACK does not acknowledge new data
[linux] Avoid starting currticks() from zero every time
[http] Use a retry timer to trigger retried requests
[http] Automatically retry request on a 503 Service Unavailable
[mii] Add mii_dump() to dump all MII registers
[realtek] Dump all MII register contents when link status changes
[monojob] Reset timeout when progress is made
[image] Add "--timeout" parameter to image downloading commands
[efi] Allow for 64-bit EFI_STATUS codes
[efi] Allow driver to be unloaded
[efi] Connect driver to devices as part of installation
[console] Fix display of characters with top bit set
[lotest] Allow loopback testing on shared networks
[netdevice] Notify upper-layer drivers when RX processing is (un)frozen
[efi] Avoid accidentally calling main() twice
[efi] Unload our own image before exiting UEFI application
[efi] Disable SNP devices when running iPXE as the application
[realtek] Add ability to dump all internal registers
[realtek] Clear bit 24 of RCR
[bios] Fix screen clearing on even more buggy BIOSes
[http] Accept Content-Length header with trailing whitespace
[crypto] Remove dynamically-allocated storage for certificate name
[crypto] Remove dynamically-allocated storage for certificate OCSP URI
[build] Remove long-obsolete mechanism for wrapping embedded images
[build] Disable ccache for all relevant build targets
[build] Add dependency of generated files upon Makefile
[crypto] Add pubkey_match() to check for matching public/private key pairs
[crypto] Generalise X.509 cache to a full certificate store
[crypto] Use fingerprint when no common name is available for debug messages
[crypto] Allow signed timestamp error margin to be configured at build time
[test] Rewrite X.509 tests using okx()
[test] Rewrite CMS tests using okx()
[test] Add tests for x509_check_name()
[test] Add subject alternative names to X.509 server test certificate
[crypto] Add support for subjectAltName and wildcard certificates
[crypto] Allow wildcard matches on commonName as well as subjectAltName
[intel] Avoid completely filling the TX descriptor ring
[test] Rewrite TCP/IP tests using okx()
[test] Add self-tests for flsl()
[libc] Add inline assembly implementation of flsl() using BSR instruction
[test] Add tests for 64-bit division
[build] Fix __libgcc attribute for recent gcc versions
[test] Check for correct -mrtd assumption on libgcc arithmetic functions
[libc] Add isqrt() function to find integer square roots
[libc] Add flsll()
[profile] Add generic profiling infrastructure
[cmdline] Add "profstat" command to display profiling statistics
[netdevice] Profile common operations
[intel] Profile common virtual machine operations
[intel] Push new RX descriptors in batches
[librm] Use genuine real mode to accelerate operation in virtual machines
[ipv4] Profile transmit and receive datapaths
[tcp] Profile transmit and receive datapaths
[http] Profile receive datapath
[downloader] Profile receive datapath
[build] Allow for a debug level of zero
[librm] Allow interrupts in protected mode
[comboot] Use built-in interrupt reflector
[pcbios] Do not switch to real mode to check for timer interrupt
[pcbios] Do not switch to real mode to sleep the CPU
[test] Print out profiling statistics after a successful test run
[librm] Add a profiling self-test for measuring mode transition times
[librm] Add meaningful labels at section changes
[librm] Speed up protected-to-real mode transition under KVM
[librm] Speed up real-to-protected mode transition under KVM
[librm] Speed up protected-mode calls under KVM
[profile] Provide methods for profiling individual stages of operations
[librm] Add profiling self-tests for complete real_call and prot_call cycles
[pxe] Profile all PXE API calls
[pxe] Profile UNDI transmit datapath
[pxe] Work around missing PXENV_UNDI_OPEN only when necessary
[undi] Profile all PXE API calls
[undi] Profile transmit and receive datapaths
[undi] Report any PXENV_UNDI_ISR errors via netdev_rx_err()
[undi] Do not switch to real mode to check for NIC interrupt
[undi] Place an upper limit on the number of PXENV_UNDI_ISR calls per poll
Peter Pickford (1):
[serial] Enable UART FIFOs
Robin Smidsrød (2):
[settings] Add "version" builtin setting
[build] Include ipxe.pxe in default build
Stefan Hajnoczi (2):
[netdevice] Add vlan_tag() to get the VLAN tag of a network device
[iscsi] Include 802.1Q VLAN identifier in iBFT
Thomas Miletich (3):
[3c90x] Stall upload engine before setting RX ring address
[3c90x] Don't round up transmit packet length
[3c90x] Fix High-MTU packet reception
lolipop (1):
[intel] Add Intel I217 Gigabit Ethernet PCI ID
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Code grew a bit, had to disable CONFIG_USB_UAS to make the
bios for the old machine types continue top fit into 128k.
git shortlog since 1.7.4:
Eric Northup (2):
init_virtio_blk, init_virtio_scsi: reset HBA on error
vp_init_simple: enable PCI bus-mastering before relying on DMA.
Gabriel L. Somlo (1):
SMBIOS: Check for aggregate tables & entry point in fw_cfg
Gerd Hoffmann (4):
smbios: catch zero-length strings
pci: improve io address space allocation
xhci: allocate scratch pad buffers
vga: rework bar detection, add virtio-vga
Johannes Krampf (5):
build: Remove unneccesary semicolons from acpi_extract scripts.
build: Make print statements in scripts python3 compatible.
build: Be explicit that we want integers when dividing for python3 compat.
build: Avoid sort() on unordered classes for python3 compatibility.
build: Be careful with unicode and byte strings for python3 compatibility.
Kevin O'Connor (79):
build: Don't trash the .config file when src/Kconfig changes.
Remove the pmm handle argument from _malloc().
Clear the total block transfer count on error.
Remove unnecesary updates of the disk op->count field.
Always perform thread cleanup on MainThread stack.
pvscsi: Don't store reference to struct pci_device.
pvscsi: Always run entirely in 32bit mode.
pvscsi: Remove use of LOWFLAT and GLOBALFLAT macros.
usb: Replace EHCI to UHCI/OHCI synchronization with new scheme.
Minor - pciinit.c - order header files and use static on local functions.
Minor - fix misspelling in romfile.c comment.
ehci: memset the qTD structures in ehci_alloc_intr_pipe
build: Update kconfig to version in Linux 3.13.
scripts: Allow encodeint.py to take integers in hex notation.
coreboot: Support alternative locations for CBFS.
debug: Add runtime option to not report the debug serial port to the OS.
debug: Only call serial_debug_preinit() at startup.
debug: Unify the SeaBIOS debug version banner.
xhci: Use 64bit writes to ERDP register.
xhci: Fix incorrect direction setting on status transmissions.
xhci: Set the interval parameter on interrupt pipes.
xhci: Verify PAGESIZE register before initializing driver.
xhci: Allocate and free the xhci inctx structure on each use.
xhci: Move set_address code from xhci_control to xhci_alloc_pipe.
xhci: Eliminate 'struct xhci_device'.
xhci: Support xhci controllers with 64 byte contexts.
xhci: Allow the XHCI USB controller to be enabled for coreboot.
xhci: Don't use a dummy endpoint count in configure command.
xhci: Report the "protocol defined" and PSIC bits of extended capabilities.
xhci: Support USB hubs on xhci controllers.
Add call32_params() helper function.
Add space between DTYPE_* definitions.
xhci: Run the XHCI driver entirely in 32bit mode.
Remove pci_writel() and pci_readl() functions.
xhci: Check if scratch pad allocation fails.
Increase maximum size of permanent high memory area.
usb: USB 3 devices encode bMaxPacketSize0 field.
usb: Move default pipe max packet size code from xhci to main code.
xhci: Use the same endpoint initialization code in xhci_alloc_pipe()
xhci: Add copyright notice to usb-xhci.c
vgabios: Make sure exported structs use PACKED.
vgabios: Simplify the bios save state area.
vgabios: Simplify save/restore mechanism.
vgabios: Attempt to detect old x86emu and force a fault.
vgabios: Don't interpret TAB character.
vgabios: Refactor write_teletype and write_chars.
vgabios: Make sure stdvga_list_modes() doesn't overrun the buffer.
coreboot: Add support for a "links" file to have aliases in CBFS.
Enhance nullTrailingSpace() so that it can also skip leading spaces.
coreboot: Move links file processing to its own function.
vgabios: Fix PMM allocation request size.
smbios: Default all values to zero.
usb: Only disable HID devices if both USB_MOUSE and USB_KEYBOARD are off.
Minor - fix some typos in comments.
Replace CONFIG_THREAD_OPTIONROMS with a runtime config setting.
acpi: Move acpi parsing logic from acpi.c to biostables.c / paravirt.c.
smbios: Move smbios parsing logic from smbios.c to biostables.c.
Move PirAddr definition from pirtable.c to biostables.c.
Use biostables.c for copying bios tables even when generating them.
Document no new changes to pirtable.c, mptable.c, acpi.c, and smbios.c.
apm: Remove old Bochs mechanism for shutdown/suspend/standby.
Minor - remove unused includes from pci.c.
vgabios: Add option to control use of standard VGA IO ports.
vgabios: Split vgafb_scroll() into separate move and clear functions.
vgabios: Rewrite vgafb.c graphics operations to set of 4 standard operators.
vgabios: Introduce text_address().
vgabios: Add support for manipulating framebuffers in high memory.
Set the color attribute when calling vgabios print character.
vgabios: PMM scan was incorrectly depending on a zero %ds segment.
coreboot: Make coreboot table searching available to other code.
vgabios: Initial support for coreboot native vga vgabios.
Minor - replace some tab characters that slipped into the code.
Factor out smbios table walking from display_uuid to smbios_next().
vgabios: Define PlatformRunningOn to make compile happy.
If an int 1587 call is made from an option rom, stay in bigreal mode.
xhci: Use msleep() instead of mdelay() for port status delay.
build: Make sure romlayout.o is recompiled on Kconfig change.
Fix int 1589 calls when CONFIG_ENTRY_EXTRASTACK is enabled.
acpi: Fix acpi dsdt compile warning.
Laszlo Ersek (1):
init_virtio_scsi(): reset the HBA before freeing its virtio ring
Marcel Apfelbaum (3):
resume: restore piix pm config registers after resume
hw/pci: reserve IO and mem for pci-2-pci bridges with no devices attached
hw/pci: check if pci2pci bridges implement optional limit registers
Roger Pau Monne (1):
ld: don't hardcode "-melf_i386"
Sander Eikelenboom (1):
Prevent build failure by not splitting line in the middle of arguments to checkrom.py script
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
There are a variety of common cases for which we can use carry tricks to
avoid a conditional branch. On very new hardware, use LOAD ON CONDITION
instead of a conditional branch.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Elides two insns from the sequence. The resulting tlb compare
sequence is satisfyingly minimal:
risbg %r2,%r8,51,186,56
risbg %r3,%r8,61,178,0
cg %r3,904(%r10,%r2)
lg %r2,920(%r10,%r2)
jlh tlb_miss
Signed-off-by: Richard Henderson <rth@twiddle.net>
Commit af3cbfbe80 hoisted some "common"
loads of the temporary type, forgetting that the types could differ
during truncating moves. This affects the correctness of the memory
offset on big-endian hosts.
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Correct post load checks:
1. dev->setup_len == sizeof(dev->data_buf)
seems fine, no need to fail migration
2. When state is DATA, passing index > len
will cause memcpy with negative length,
resulting in heap overflow
First of the issues was reported by dgilbert.
Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
currently the value of the throughput field contains whatever
was the last calculated throughput shortly before the migration
finished.
This patch updates the post migration contents of the field to
the average throughput.
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
After previous Peter patch, they are redundant. This way we don't
assign them except when needed. Once there, there were lots of case
where the ".fields" indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
After previous Peter patch, they are redundant. This way we don't
assign them except when needed. Once there, there were lots of case
where the ".fields" indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
ram_save_block is getting a bit too complicated, and does two separate
things:
1) Finds a page to send
2) Sends the page (dealing with compression etc)
Split into 'ram_save_page' to send the page and deal with compression (2)
Rename remaining function to 'ram_find_and_save_block'
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
For xbzrle_decode_buffer(), when decoding contents will exceed writing
buffer, it will return -1, so need not check the return value whether
large than writing buffer.
And when failure occurs within load_xbzrle(), it always return -1
without any resources which need release.
So can remove the related checking statements, and also can remove 'rc'
and 'ret' local variables,
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
We got the wrong version of stl_p, the one that bswaps as appropriate
for the target. Since x86 is always little-endian, the "_le_" routine
will resolve to what we want.
Signed-off-by: Richard Henderson <rth@twiddle.net>
In fill_prefetch_fifo(), if the device we are reading from is 16 bit,
then we must not try to transfer an odd number of bytes into the FIFO.
This could otherwise have resulted in our overrunning the prefetch.fifo
array by one byte.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
We don't implement very much of the GPTM TAR register, and what we
do is wrong. The "are we in RT mode?" field is in s->config, not
s->control. Correct this, use LOG_UNIMP rather than hw_error()
for the cases we don't support, and avoid an unlabelled fallthrough
that makes Coverity complain.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Add casts to avoid potentially overflowing the multiplications
of 32 bit quantities in exynos4210_ltick_recalc_count().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Add missing (uint32_t) casts in cases where we're trying to
put a uint16_t value into the top half of a 32-bit field.
These were already present in some but not all places.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
When writing to the YEARS_REG register, if the year value is
99 then the multiplication by 31536000 will overflow into
the sign bit of a 32 bit value and then be erroneously
sign-extended if time_t is 64 bits. Add a cast to avoid this.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Commit 191946c moved the code to handle padding to minimum
length from after the handling of the CRC to before it.
This means that the CRC code doesn't need to cope with the
possibility that the size is less than 60; remove this
dead code.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Linux makes a habit of writing the same value to the SCTLR that it
already holds. In a sample boot of the kernel to a shell prompt
it wrote the SCTLR with the value it already held 325465 times,
and wrote different values just 3 times.
Skip flushing the TLB if the SCTLR value isn't actually being changed;
this speeds up my sample boot by 3-5%.
Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1399560029-19007-1-git-send-email-peter.maydell@linaro.org
Convert this device to use vmstate for its save/load, including
providing a post_load function that sanitizes inbound data to
avoid possible buffer overflows if it is malicious.
The sanitizing fixes CVE-2013-4532 (though nobody should be
relying on the security properties of most of the unmaintained
ARM board models anyway, and migration doesn't actually
work on this board due to issues in other device models).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
The rx_fifo pointer is awkward to migrate, and is actually
redundant since it is always possible to determine it from
the current rx[].len/.data and rx_fifo_len. Remove both
rx_fifo and rx_fifo_len from the state, replacing them with
a simple rx_fifo_offset which points at the current location
in the RX fifo.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Fix various debug format strings which were incorrect for the
data type, so that building with debug enabled is possible.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Packet transmission for the stellaris ethernet controller can be triggered
in one of two ways:
* by setting a threshold value in the THR register; when the FIFO
fill level reaches the threshold, the h/w starts transmitting.
Software has to finish filling the FIFO before the transmit
process completes to avoid a (silent) underrun
* by software writing to the TR register to explicitly trigger
transmission
Since QEMU transmits packets instantaneously (from the guest's
point of view), implement "transmit based on threshold" with
our existing mechanism of "transmit as soon as we have the whole
packet", with the additional wrinkle that we don't transmit if
the packet size is below the specified threshold, and implement
"transmit by specific request" properly.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
The datasheet is clear that the frame length written to the DATA
register is actually stored in the TX FIFO; this means we don't
need to keep both tx_frame_len and tx_fifo_len state separately.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
The PADEN bit in the transmit control register enables padding of short
data packets out to the required minimum length. However a typo here
meant we were adjusting tx_fifo_len rather than tx_frame_len, so the
padding didn't actually happen. Fix this bug.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: qemu-stable@nongnu.org
The current tx_fifo code has a corner case where the guest can overrun
the fifo buffer: if automatic CRCs are disabled we allow the guest to write
the CRC word even if there isn't actually space for it in the FIFO.
The datasheet is unclear about exactly how the hardware deals with this
situation; the most plausible answer seems to be that the CRC word is
just lost.
Implement this fix by separating the "can we stuff another word in the
FIFO" logic from the "should we transmit the packet now" check. This
also moves us closer to the real hardware, which has a number of ways
it can be configured to trigger sending the packet, some of which we
don't implement.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: qemu-stable@nongnu.org
After commit 767adce2d, they are redundant. This way we don't assign them
except when needed. Once there, there were lots of cases where the ".fields"
indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (apart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
[PMM: fixed minor conflict, corrected commit message typos]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Commit e586822a5 broke the bsd-user build when it removed the
CONFIG_UNAME_RELEASE define but forgot to remove the use of it
in bsd-user. Fix this in the simplest possible way (bsd-user
doesn't make any use at all of the qemu_uname_release variable
except to allow it to be pointlessly set by the user, so this
is all we need to do.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1399648001-20980-1-git-send-email-peter.maydell@linaro.org
The PIIX datasheet says that "before another INIT pulse can be
generated via [port 92h], [bit 0] must be written back to a
zero.
This bug is masked right now because a full reset will clear the
value of port 92h. But once we implement soft reset correctly,
the next attempt to enable the A20 line by setting bit 1 (and
leaving the others untouched) will cause another reset.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
On the x86, some devices need access to the CPU reset pin (INIT#).
Provide a generic service to do this, using one of the internal
cpu_interrupt targets. Generalize the PPC-specific code for
CPU_INTERRUPT_RESET to other targets.
Since PPC does not support migration across QEMU versions (its
machine types are not versioned yet), I picked the value that
is used on x86, CPU_INTERRUPT_TGT_INT_1. Consequently, TGT_INT_2
and TGT_INT_3 are shifted down by one while keeping their value.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
SIPI interrupts are ignored on the bootstrap. Never accept one.
Cc: Andreas Faerber <afaerber@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Most MSRs, plus the FPU, MMX, MXCSR, XMM and YMM registers should not
be zeroed on INIT (Table 9-1 in the Intel SDM). Copy them out of
CPUX86State and back in, instead of special casing env->pat.
The relevant fields are already consecutive except PAT and SMBASE.
However:
- KVM and Hyper-V MSRs should be reset because they include memory
locations written by the hypervisor. These MSRs are moved together
at the end of the preserved area.
- SVM state can be moved out of the way since it is written by VMRUN.
Cc: Andreas Faerber <afaerber@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
BND0-3, BNDCFGU, BNDCFGS, BNDSTATUS were not zeroed on reset, but they
should be (Intel Instruction Set Extensions Programming Reference
319433-015, pages 9-4 and 9-6). Same for YMM.
XCR0 should be reset to 1.
TSC and TSC_RESET were zeroed already by the memset, remove the explicit
assignments.
Cc: Andreas Faerber <afaerber@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Now that we have a CPU object with a reset method, it is better to
keep the KVM reset close to the CPU reset. Using qemu_register_reset
as we do now keeps them far apart.
With this patch, PPC no longer calls the kvm_arch_ function, so
it can get removed there. Other arches call it from their CPU
reset handler, and the function gets an ARMCPU/X86CPU/S390CPU.
Note that ARM- and s390-specific functions are called kvm_arm_*
and kvm_s390_*, while x86-specific functions are called kvm_arch_*.
That follows the convention used by the different architectures.
Changing that is the topic of a separate patch.
Reviewed-by: Gleb Natapov <gnatapov@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Instead of manually calling cpu_x86_set_cpl() when the CPL changes,
check for CPL changes on calls to cpu_x86_load_seg_cache(R_CS). Every
location that called cpu_x86_set_cpl() also called
cpu_x86_load_seg_cache(R_CS), so cpu_x86_set_cpl() is no longer
required.
This fixes the SMM handler code as it was not setting/restoring the
CPL level manually.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The cpu_x86_load_seg_cache() function inspects eflags, so make sure
all changes to eflags are done prior to loading the segment caches.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The cpu_x86_load_seg_cache() function inspects cr0 and eflags, so make
sure all changes to eflags and cr0 are done prior to loading the
segment caches.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The svm_load_seg_cache() function calls cpu_x86_load_seg_cache() which
inspects env->eflags. So, make sure all changes to eflags are done
prior to loading the segment cache.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
KVM only supports MSIX table size up to 256 vectors,
but some assigned devices support more vectors,
at the moment attempts to assign them fail with EINVAL.
Tweak the MSIX capability exposed to guest to limit table size
to a supported value.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Gonglei <arei.gonglei@huawei.com>
Cc: qemu-stable@nongnu.org
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When mmapping memory for the MSI-X table failsthe dev->msix_table is
not set to NULL and assigned_dev_unregister_msix_mmio() will cause
a segfault when trying to munmap it.
Signed-off-by: Gonglei Arei <arei.gonglei@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
s390x introduced helper functions for getting/setting one_regs with
commit 860643bc. However, nothing about these is s390-specific.
Alexey Kardashevskiy had already posted a general version, so let's
merge the two patches and massage the code a bit.
CC: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* remotes/bonzini/configure:
libcacard: remove libcacard-specific CFLAGS and LIBS from global vars
build: simplify and fix fix-obj-vars
build: convert some obj-specific CFLAGS to use new foo.o-cflags syntax
build: add support for per-object -cflags and -libs to all rules
Makefile: use $(INSTALL_LIB) for modules not $(INSTALL_PROG)
Makefile.target: use $(INSTALL_PROG) for installing, not $(INSTALL)
Makefile: strip tools and modules too
build: simplify Makefile.target around unnest-vars invocations
build: simplify Makefile.target a bit, use just one rule for softmmu
build: Fix per-object variables for Makefile.target
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Block pull request
# gpg: Signature made Fri 09 May 2014 19:57:53 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/block-pull-request:
glib: fix g_poll early timeout on windows
block: qemu-iotests - test for live migration
block: qemu-iotests - update 085 to use common.qemu
block: qemu-iotests - add common.qemu, for bash-controlled qemu tests
block/raw-posix: Try both FIEMAP and SEEK_HOLE
gluster: Correctly propagate errors when volume isn't accessible
vl.c: remove init_clocks call from main
block: Fix open flags with BDRV_O_SNAPSHOT
qemu-iotests: Test converting to streamOptimized from small cluster size
vmdk: Implement .bdrv_get_info()
vmdk: Implement .bdrv_write_compressed
qemu-img: Convert by cluster size if target is compressed
block/iscsi: bump year in copyright notice
block/nfs: Check for NULL server part
qemu-img: sort block formats in help message
iotests: Use configured python
qcow2: Fix alloc_clusters_noref() overflow detection
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There was some modulo logic to ensure that Microblaze always booted into
physical RAM regardless of the elf entry. Removed it, as QEMU should fail
gracefully when given a bad elf, rather than attempt to run it.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
The TCSR register has only 11 valid bits. This is now used by the
linux kernel to auto-detect endianness, and causes Linux 3.15-rc1
and later to hang when run under qemu-microblaze. Mask valid bits
before writing the register to solve the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
The MER register only has two valid bits. This is now used by
the linux kernel to auto-detect endianness, and causes Linux 3.15-rc1
and later to hang when run under qemu-microblaze. Mask valid bits before
writing the register to solve the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
[Edgar: Untabified]
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Older Intel manuals (pre-2010) and current AMD manuals describe Z as
undefined, but newer Intel manuals describe Z as unchanged.
Cc: qemu-stable@nongnu.org
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
The INDEX_op_call case has just been obsoleted; the mov and movi
cases have not been reachable for years. Attempt to document this
both in each tcg_out_op switch, and via TCG_OPF_NOT_PRESENT.
Because of the TCG_OPF_NOT_PRESENT change, this must be done for
all targets in a single commit.
Signed-off-by: Richard Henderson <rth@twiddle.net>
The move opcodes are special in that their constraints must cover
all available registers. So instead of checking the constraints,
just use the available registers.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Avoid allocating a tcg temporary to hold the constant address,
and instead place it directly into the op_call arguments.
At the same time, convert to the newly introduced tcg_out_call
backend function, rather than invoking tcg_out_op for the call.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Now that all backends do define TCG_TARGET_INSN_UNIT_SIZE,
remove the fallback definition.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
And use tcg pointer differencing functions as appropriate.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
And use tcg pointer differencing functions as appropriate.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Using a 16-byte aligned structure achieves best results, both for code
cleanliness and compiled code size. However, this means that we can't
use the trick of encoding the slot number into the low 2 bits.
Thankfully, we only ever use slot2, so make that explicit in the names
of the relocation functions, and drop the code for other slots.
Signed-off-by: Richard Henderson <rth@twiddle.net>
And use tcg pointer differencing functions as appropriate.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
And use tcg pointer differencing functions as appropriate.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
And use tcg pointer differencing functions as appropriate.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
To be defined by the tcg backend based on the elemental unit of the ISA.
During the transition, allow TCG_TARGET_INSN_UNIT_SIZE to be undefined,
which allows us to default tcg_insn_unit to the current uint8_t.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
To avoid C undefined behaviour when patching generated code,
provide wrappers tcg_patch8/16/32/64 which use the usual memcpy
trick, and use them in the i386 backend.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Avoid stores to unaligned addresses in TCG code generation, by using the
usual memcpy() approach. (Using bswap.h would drag a lot of QEMU baggage
into TCG, so it's simpler just to do direct memcpy() here.)
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
The code which patches x86 jump instructions assumes it can do an
unaligned write of a uint32_t. This is actually safe on x86, but it's
still undefined behaviour. We have infrastructure for doing efficient
unaligned accesses which doesn't engage in undefined behaviour, so
use it.
This is technically fractionally less efficient, at least with gcc 4.6;
instead of one instruction:
7b2: 89 3e mov %edi,(%rsi)
we get an extra spurious store to the stack slot:
7b2: 89 7c 24 64 mov %edi,0x64(%rsp)
7b6: 89 3e mov %edi,(%rsi)
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
It's a loop from i < num_sg and the array is VIRTQUEUE_MAX_SIZE - so
it's OK if the value read is VIRTQUEUE_MAX_SIZE.
Not a big problem in practice as people don't use
such big queues, but it's inelegant.
Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Currently all what's needed for single file libcacard/vcard_emul_nss.c
(libnss cflags) and hw/usb/ccid-card-emulated.c (libcacard includes)
together with the libs is added to global QEMU_CFLAGS and libs_softmmu.
Use the cflags only where really used (for two mentioned files), and
libs only where needed.
While at it, rename variables to better reflect reality: libcacard_*
is really nss_*.
This needs a bit more tweaking: $(NSS_LIBS) should not contain $glib_libs
(ditto for _cflags). But in order to fix it, some more preparations
should be made first. So add a FIXME comment.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
fix-obj-vars has the undesired side effect of breaking -cflags
-objs and -libs variables in the toplevel Makefile.objs. The
variables in the toplevel Makefile.objs do not need any fix,
so fix-obj-vars need not do anything.
Since we are touching it, remove the now unnecessary $(if)
in the callers.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
g_poll has a problem on Windows when using
timeouts < 10ms, in glib/gpoll.c:
/* If not, and we have a significant timeout, poll again with
* timeout then. Note that this will return indication for only
* one event, or only for messages. We ignore timeouts less than
* ten milliseconds as they are mostly pointless on Windows, the
* MsgWaitForMultipleObjectsEx() call will timeout right away
* anyway.
*/
if (retval == 0 && (timeout == INFINITE || timeout >= 10))
retval = poll_rest (poll_msgs, handles, nhandles, fds, nfds, timeout);
so whenever g_poll is called with timeout < 10ms it does
a quick poll instead of wait, this causes significant performance
degradation of QEMU, thus we should use WaitForMultipleObjectsEx
directly
Signed-off-by: Stanislav Vorobiov <s.vorobiov@samsung.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This is an initial, simple live migration test from one
running VM to another, using monitor commands.
This is also an example of using the new common.qemu functions
for controlling multiple running qemu instances, for tests that
need a live qemu vm.
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The new functionality of common.qemu implements the QEMU control
and communication functionality that was originally in test 085.
This removes that now-duplicate functionality, and uses the
common.qemu functions.
The QEMU commandline changes slightly due to this; in addition to
monitor and qmp i/o options, the new QEMU commandline from inside
common.qemu now introduces -machine accel=qtest.
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This creates some common functions for bash language qemu-iotests
to control, and communicate with, a running QEMU process.
4 functions are introduced:
1. _launch_qemu()
This launches the QEMU process(es), and sets up the file
descriptors and fifos for communication. You can choose to
launch each QEMU process listening for either QMP or HMP
monitor. You can call this function multiple times, and
save the handle returned from each. The returned handle is
in $QEMU_HANDLE. You must copy this value.
Commands 2 and 3 use the handle received from _launch_qemu(), to talk
to the appropriate process.
2. _send_qemu_cmd()
Sends a command string, specified by $2, to QEMU. If $3 is
non-NULL, _send_qemu_cmd() will wait to receive $3 as a
required result string from QEMU. Failure to receive $3 will
cause the test to fail. The command can optionally be retried
$qemu_cmd_repeat number of times. Set $qemu_error_no_exit
to not force the test the fail on exit; in this case,
$QEMU_STATUS[$1] will be set to -1 on failure.
3. _timed_wait_for()
Waits for a response, for up to a default of 10 seconds. If
$2 is not seen in that time (anywhere in the response), then
the test fails. Primarily used by _send_qemu_cmd, but could
be useful standalone, as well. To prevent automatic exit
(and therefore test failure), set $qemu_error_no_exit to a
non-NULL value. If $silent is a non-NULL value, then output
to stdout will be suppressed.
4. _cleanup_qemu()
Kills the running QEMU processes, and removes the fifos.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The current version of raw-posix always uses ioctl(FS_IOC_FIEMAP) if
FIEMAP is available; lseek with SEEK_HOLE/SEEK_DATA are not even
compiled in in this case. However, there may be implementations which
support the latter but not the former (e.g., NFSv4.2) as well as vice
versa.
To cover both cases, try FIEMAP first (as this will return -ENOTSUP if
not supported instead of returning a failsafe value (everything
allocated as a single extent)) and if that does not work, fall back to
SEEK_HOLE/SEEK_DATA.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The docs for glfs_init suggest that the function sets errno on every
failure. In fact it doesn't. As other functions such as
qemu_gluster_open() in the gluster block code report their errors based
on this fact we need to make sure that errno is set on each failure.
This fixes a crash of qemu-img/qemu when a gluster brick isn't
accessible from given host while the server serving the volume
description is.
Thread 1 (Thread 0x7ffff7fba740 (LWP 203880)):
#0 0x00007ffff77673f8 in glfs_lseek () from /usr/lib64/libgfapi.so.0
#1 0x0000555555574a68 in qemu_gluster_getlength ()
#2 0x0000555555565742 in refresh_total_sectors ()
#3 0x000055555556914f in bdrv_open_common ()
#4 0x000055555556e8e8 in bdrv_open ()
#5 0x000055555556f02f in bdrv_open_image ()
#6 0x000055555556e5f6 in bdrv_open ()
#7 0x00005555555c5775 in bdrv_new_open ()
#8 0x00005555555c5b91 in img_info ()
#9 0x00007ffff62c9c05 in __libc_start_main () from /lib64/libc.so.6
#10 0x00005555555648ad in _start ()
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Clocks are initialized in qemu_init_main_loop. They are not needed before it.
Initializing them twice is not only unnecessary but is harmful: it results in
memory leak and potentially can lead to a situation where different parts of
QEMU use different sets of timers.
To avoid it remove init_clocks call from main and add an assertion to
qemu_clock_init that corresponding clock has not been initialized yet.
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The immediately visible effect of this patch is that it fixes committing
a temporary snapshot to its backing file. Previously, it would fail with
a "permission denied" error because bdrv_inherited_flags() forced the
backing file to be read-only, ignoring the r/w reopen of bdrv_commit().
The bigger problem this revealed is that the original open flags must
actually only be applied to the temporary snapshot, and the original
image file must be treated as a backing file of the temporary snapshot
and get the right flags for that.
Reported-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* remotes/qmp-unstable/queue/qmp: (38 commits)
Revert "qapi: Clean up superfluous null check in qapi_dealloc_type_str()"
qapi: Document optional arguments' backwards compatibility
qmp: use valid JSON in transaction example
qmp: Don't use error_is_set() to suppress additional errors
dump: Drop pointless error_is_set(), DumpState member errp
qemu-option: Clean up fragile use of error_is_set()
qga: Drop superfluous error_is_set()
qga: Clean up fragile use of error_is_set()
qapi: Clean up fragile use of error_is_set()
tests/qapi-schema: Drop superfluous error_is_set()
qapi: Drop redundant, unclean error_is_set()
hmp: Guard against misuse of hmp_handle_error()
qga: Use return values instead of error_is_set(errp)
error: Consistently name Error ** objects errp, and not err
qmp: Consistently name Error ** objects errp, and not err
qga: Consistently name Error ** objects errp, and not err
qmp hmp: Consistently name Error * objects err, and not errp
pci-assign: assigned_initfn(): set monitor error in common error handler
pci-assign: propagate errors from assign_intx()
pci-assign: propagate errors from assign_device()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This reverts commit 25a7017555.
Turns out the argument *can* be null: QEMU now segfaults if it
receives an invalid parameter via a qmp command instead of throwing an
error.
For example:
{ "execute": "blockdev-add",
"arguments": { "options" : { "driver": "invalid-driver" } } }
CC: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Our example should use the correct quotes to match what someone
could actually pass over the wire.
* qmp-commands.hx: Use correct JSON quotes.
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Using error_is_set(errp) that way can sweep programming errors under
the carpet when we get called incorrectly with an error set.
encrypted_bdrv_it() does it, because there's no way to make
bdrv_iterate() break its loop. Actually safe, because qmp_cont()
clears the error before the loop. Clean it up anyway: replace
bdrv_iterate() by bdrv_next(), break the loop on error.
Replace both occurrences, for consistency.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
In qmp_dump_guest_memory(), the error must be clear on entry, and we
always bail out after setting it, directly or via dump_init().
Therefore, both error_is_set() are always false. Drop them.
DumpState member errp is now write-only. Drop it, too.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Using error_is_set(ERRP) to find out whether to bail out due to
previous error is either wrong, fragile, or unnecessarily opaque.
It's wrong when ERRP may be null, because errors go undetected when it
is. It's fragile when proving ERRP non-null involves a non-local
argument. Else, it's unnecessarily opaque (see commit 84d18f0).
The error_is_set(state->errp) in qemu_opts_from_qdict_1() is merely
fragile, because the callers never pass state argument with null
state->errp.
Make the code more robust and more obviously correct: test
*state->errp directly.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
acquire_privilege(), execute_async() and check_suspend_mode() do
nothing when called with an error set. Callers shouldn't do that, and
no caller does. Drop the superfluous tests.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Using error_is_set(ERRP) to find out whether a function failed is
either wrong, fragile, or unnecessarily opaque. It's wrong when ERRP
may be null, because errors go undetected when it is. It's fragile
when proving ERRP non-null involves a non-local argument. Else, it's
unnecessarily opaque (see commit 84d18f0).
The error_is_set(errp) in the guest agent command handler functions
are merely fragile, because all chall chains (do_qmp_dispatch() via
the generated marshalling functions) pass a non-null errp argument.
Make the code more robust and more obviously correct: receive the
error in a local variable, then propagate it through the parameter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Using error_is_set(ERRP) to find out whether a function failed is
either wrong, fragile, or unnecessarily opaque. It's wrong when ERRP
may be null, because errors go undetected when it is. It's fragile
when proving ERRP non-null involves a non-local argument. Else, it's
unnecessarily opaque (see commit 84d18f0).
The error_is_set(errp) in do_qmp_dispatch() is merely fragile, because
the caller never passes a null errp argument.
Make the code more robust and more obviously correct: receive the
error in a local variable, then propagate it through the parameter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
visit_type_TestStruct() does nothing when called with an error set.
Callers shouldn't do that, and no caller does. Drop the superfluous
test.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
do_qmp_dispatch()'s test for qmp_dispatch_check_obj() failure examines
both the return value and the error object. The latter part is
unclean; it works only when do_qmp_dispatch()'s caller passes a
non-null errp argument. That's the case, but it's not locally
obvious. Unclean.
Cleanup would be easy enough, but since the unclean code is also
redundant, let's just drop it.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Null errp argument makes no sense. Assert it's not null, to make this
explicit, and guard against misuse. All current callers pass non-null
errp.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Using error_is_set(errp) to check whether a function call failed is
fragile: it breaks when errp is null. ga_get_fd_handle() and
guest_file_handle_add() don't return a useful value when they fail,
but that's just stupid. Fix that, and check them instead. As far
as I can tell, errp can't be null there, but this is more robust and
more obviously correct.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This will return cluster_size and needs_compressed_writes to caller, if all the
extents have the same value (or there's only one extent). Otherwise return
-ENOTSUP.
cluster_size is only reported for sparse formats.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Add a wrapper function to support "compressed" path in qemu-img convert.
Only support streamOptimized subformat case for now (num_extents == 1
and extent compression is true).
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
If target block driver forces compression, qemu-img convert needs to
write by cluster size as well as "-c" option.
Particularly, this applies for converting to VMDK streamOptimized
format.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
After the URL has been parsed make sure the server part is valid in
order to avoid a segmentation fault when calling nfs_mount().
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The help message for qemu-img lists the supported block formats, of
which there are 27 as of version 2.0.50. The formats are printed in
the order of their driver's position in a linked list, which appears
random. This patch prints the formats in sorted order, making it
easier to read and to find a specific format in the list.
[Added suggestions from Fam Zheng <famz@redhat.com> to declare variables
at the top of the scope in help() and to omit explicit cast for void*
opaque.
--Stefan]
Signed-off-by: Mike Day <ncmike@ncultra.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Currently, QEMU's iotests rely on /usr/bin/env to start the correct
Python (that is, at least Python 2.4, but not 3). On systems where
Python 3 is the default, the user has no clean way of making the iotests
use the correct binary.
This commit makes the iotests use the Python selected by configure.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
If the very first allocation has a length of 0, the free_cluster_index
is still 0 after the for loop, which means that subtracting one from it
will underflow and signal an invalid range of clusters by returning
-EFBIG. However, there is no such range, as its length is 0.
Fix this by preventing underflows on free_cluster_index during the
check.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Among the callers, only assigned_initfn() should set the monitor's stored
error. Other callers may run in contexts where the monitor's stored error
makes no sense. For example:
assigned_dev_pci_write_config()
assigned_dev_update_msix()
assign_intx()
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Also, change the return type to "void"; the function is static (with a
sole caller) and the negative errno values are not distinguished from each
other.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
The return type is also changed from "int" to "void", because it was used
in a success vs. failure sense only (the caller didn't distinguish error
codes from each other, and even assigned_dev_register_msix_mmio() masked
mmap()'s errno values with a common -EFAULT).
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Propagate any errors while adding PCI capabilities to
assigned_device_pci_cap_init(). We'll continue the propagation upwards
when assigned_device_pci_cap_init() becomes a leaf itself (when none of
its callees will report errors internally any longer when detecting and
returning them).
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Rename check_irqchip_in_kernel() to verify_irqchip_in_kernel(), so that
the name reflects our expectation better. Rather than returning a bool,
make it do nothing or set an Error.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
get_real_id() has two thin wrappers (and no other callers),
get_real_vendor_id() and get_real_device_id(); it's easiest to convert
them in one fell swoop.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This allows us to report the entire error with one error_report() call,
easing future error propagation.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Propagate any errors in monitor fd handling up to get_real_device(), and
report them there. We'll continue the propagation upwards when
get_real_device() becomes a leaf itself (when none of its callees will
report errors internally any longer when detecting and returning an
error).
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
eviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
and rebase monitor_handle_fd_param() to it. (Note that this will slightly
change the behavior when the qemu_parse_fd() branch is selected and it
fails: we now report (and in case of QMP, set) the error immediately,
rather than allowing the caller to set its own error message (if any)).
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
qemu_parse_fd() used to handle at least the following strings incorrectly:
o "-2": simply let through
o "2147483648": returned as LONG_MAX==INT_MAX on ILP32 (with ERANGE
ignored); implementation-defined behavior on LP64
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
strtosz_suffix() might return negative error, this patch fixes
the error handling.
This patch also changes to handle error in the if statement
rather than handle success specially, this will make this use
of strtosz_suffix consistent with all other uses.
Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
The primitive uses JSON syntax, and include paths are relative to the file using the directive:
{ 'include': 'path/to/file.json' }
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Use an explicit input file on the command-line instead of reading from standard
input.
It also outputs the proper file name when there's an error.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Current Makefile system allows using foo.o-cflags variables to store
object-specific CFLAGS. Convert some usages of old syntax
(using QEMU_CFLAGS += construct) to the new syntax.
Do not touch multifile modules for now, as build system isn't ready for this.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This is needed in order to use per-object flags variables.
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We have $(INSTALL_LIB) which is the same as $(INSTALL_PROG) but
uses correct permissions. Loadable objects (modules) are like
shared libraries, not like programs.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Fam Zheng <famz@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
$(INSTALL_PROG) is evaluated to libtool if using libtool, while
$(INSTALL) is not. Use $(INSTALL_PROG) so that libtool is used
with target too when necessary. This allows, for example, to
link qemu with shared libcacard.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Fam Zheng <famz@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Alon Levy <alevy@redhat.com>
Cc: qemu-trivial@nongnu.org
--
This is done on top of previous patch (using $(STRIP)), but it can
be used by its own.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 52ba784d3 replaced $(STRIP_OPT) with $(STRIP) in some
places (for example, Makefile.target), but not all of them.
There are a few places remain in main Makefile which still
uses $(STRIP_OPT). Replace these places with $(STRIP) too.
While at it, simplify variable pattern substitution of the
surrounding places, change $(patsubst pat,rep,$(var)) into
$(var:pat=rep) which is much easier to read (this is probably
a good idea to do everywhere).
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Fam Zheng <famz@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
No need to save/restore obj-y, we can just build all-obj-y incrementally.
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
On win*, we build QEMU_PROGW (GUI) and create a console app QEMU_PROG
from it, while on non-win*, we make only QEMU_PROG using the same
rules as used for QEMU_PROGW on win*. Make just one rule for building
main executable, and an additional rule for win* to make console app
from it. Also consolidate tests for $(QEMU_PROGW).
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
[Fix user-mode compilation. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The compiling is done in a subdir, so the extraction of per-object libs
and cflags are referencing objects with ../ prefixed. So prefix the
per-object variables "foo.o-cflags" and "foo.o-libs" to
"../foo.o-cflags" and "../foo.o-libs".
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tracing pull request
# gpg: Signature made Wed 07 May 2014 18:14:02 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/tracing-pull-request:
configure: Show trace output file conditionally
trace: [tracetool] Minimize the amount of per-backend code
trace: [simple] Bump up log version number
trace: [tracetool] Change format docs to point to the generated file
trace: [tracetool] Show list of frontends and backends sorted by name
trace: [tracetool] Cosmetic changes
trace: [tracetool] Spacing changes
trace: [tracetool] Add methods 'Event.copy' and 'Arguments.copy'
trace: [tracetool] Add method 'Event.api' to build event names
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Only notify spice-server about migration events in case we got
target host information beforehand. So we kick the seamless spice
client migration only in case a actual live migration happens, not
when libvirt uses live-migration-to-file for snapshotting.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In case no listening address was specified, "info spice" reports
"0.0.0.0" as address. Which is incorrect in case spice is listening
on ipv6. Replace it by a wildcard "*" to indicate it is not limited
to a specific address.
Note: Being more specific is not possible without extending the
spice-server api. The socket is handled by spice-server not
qemu, so qemu can't easily figure the actual socket address.
Reported-by: David Jaša <djasa@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* remotes/sstabellini/xen-140507-2:
xen_disk: add discard support
pass an inclusive address range to xc_domain_pin_memory_cacheattr
xen: factor out common functions
xen: move Xen HVM files under hw/i386/xen
xen: move Xen PV machine files to hw/xenpv
qemu-xen: free all the pirqs for msi/msix when driver unload
exec: Limit translation limiting in address_space_translate to xen
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Backends now only contain the essential backend-specific code, and most of the work is moved to frontend code.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The following tracetool cleanup changes the event numbering policy.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Makes it easier to ensure proper naming across the different frontends and backends.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
.impl.valid should be .impl.unaligned and the description needs some
fixes.
.old_portio is removed since commit b40acf99b (ioport: Switch
dispatching to memory core layer).
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Commit 2e679780ae replaced strncpy() with pstrcpy()
in one place in libcacard. This is a qemu-specific function,
while libcacard is a stand-alone library (or tries to be).
But since we know the exact length of the string to copy,
and know that it definitely will fit in the destination
buffer, use memcpy() instead, and null-terminate the string
after that.
An alternative is to use g_strlcpy() or strncpy(), but memcpy()
is more than adequate in this place.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: qemu-trivial@nongnu.org
Cc: Alon Levy <alevy@redhat.com>
We have a dedicated header file for wrappers to smooth over glib version
differences. Move the g_poll() definition into glib-compat.h for
consistency.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: qemu-trivial@nongnu.org
glib >= 2.31 always enables thread support and g_thread_supported()
is #defined to 1, there's no need to call g_thread_init() anymore,
and it definitely does not need to report error which never happens.
Keep code for old < 2.31 glibc anyway for now, just #ifdef it
differently.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Cc: qemu-trivial@nongnu.org
This fixes warnings from the static code analysis (smatch).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This fixes a warning from the static code analysis (smatch).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
There was already a forward declaration using 'static',
but the attribute was missing in the implementation.
This fixes a warning from the static code analysis (smatch).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This fixes a warning from the static code analysis (smatch).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This fixes a warning from the static code analysis (smatch).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
When DPRINTF() has effect, the original author wants to print all
ram_load() calling results. So need use 'goto' instead of 'return'
within ram_load(), just like other areas have done.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The test_path binary is (unlike the other test binaries in tests/tcg)
actually intended to be compiled with the same compiler used to build
the main QEMU executables. It actually #includes a number of the
QEMU source files in an attempt to unit-test the util/path.c functions,
and so if it is not compiled with the same compiler used by configure
to set CONFIG_ settings then it is liable to fail to build.
Fix the makefile to build it with the default C compiler rules, not
CC_I386, and fix the test itself not to include a lot of unnecessary
trace related source files which cause the build to fail if the trace
backend is anything other than 'simple'.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Commit e26110cfc6 added a check for shacmd to create a hash
for modules. This check in configure is using bash construct &>
to redirect both stdout and stderr, which does fun things on some
shells. Get rid of it, use standard redirection instead.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Fam Zheng <famz@redhat.com>
Implement discard support for xen_disk. It makes use of the existing
discard code in qemu.
The discard support is enabled unconditionally. The tool stack may
provide a property "discard-enable" in the backend node to optionally
disable discard support. This is helpful in case the backing file was
intentionally created non-sparse to avoid fragmentation.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
So common functions used by both HVM and PV are factored out from
xen-all.c to xen-common.c.
Finally rename xen-all.c to xen-hvm.c, as those functions are only
useful to HVM guest.
Create *-stub files and modify Makefile.target to reflect the changes.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
pc,net,MAINTAINERS,build updates
MAINTAINERS updated with link to the security process documentation
apic version modified to make more guests happy
On top of that, bugfixes all over the place
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Wed 07 May 2014 17:15:29 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream:
configure: make source tree build more robust
MAINTAINERS: addresses for responsible disclosure
pm_smbus: correctly report unclaimed cycles
smbus: return -1 if nothing found at the given address
smbus: allow returning an error from reads
apic: use emulated lapic version 0x14 on pc machines >= 2.1
pc: add compat_props placeholder for 2.0 machine type
i8259: don't abort when trying to use level sensitive irqs
acpi: fix tables for no-hpet configuration
acpi-build: properly decrement objects' reference counters
acpi/pcihp.c: Rewrite acpi_pcihp_get_bsel using object_property_get_int
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When source directory can be arrived at by two paths,
configure might misdetect an out of tree build.
The simplest way to trigger the problem is running
configure using a full path. E.g. (<firstpath> refers to qemu source
tree):
ln -s <firstpath> <secondpath>
cd <firstpath>
<secondpath>/configure
A more practical way is when make runs configure automatically:
1. cd <firstpath>/; ./configure
SRC_PATH=<firstpath>/ is written into config_host.mak
2. cd <secondpath>/; touch configure; make
make now runs <firstpath>/configure, so configure
assumes it's an out of tree build
When this happens configure overwrites parts of
the current tree with symlinks.
Make the test more robust: look for configure
in the current directory.
If there - we know it's a source build!
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Adding addresses to MAINTAINERS, as agreed on the last conference call:
http://wiki.qemu.org/SecurityProcess
People sometimes detect security issues in upstream
QEMU and don't know where to report them in a non-public way.
Of course whoever just wants full disclosure can just go public,
but there's nothing specified for non-public - until recently Anthony
was doing this informally.
As I started doing this recently anyway, I can handle this on the QEMU side
in a more formal way.
Adding a secalert mailing list as well - they are the ones who is actually
opening CVEs, communicating issues to all downstreams etc,
and they are already handling this for upstream, not just Red Hat.
Keeping Anthony's address around in case he wants to be informed.
Peter Maydell said that he prefers not to be on this contact list at
this point.
A public mailing list has been created - not listing it here yet -
until we know how to set it up in a secure fashion and
until there are more people so manually copying everyone
becomes unwieldy for reporters.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Pirqs are not freed when driver unload, then new pirqs are allocated when
driver reload. This could exhaust pirqs if do it in a loop.
This patch fixes the bug by freeing pirqs when ENABLE bit is cleared in
msi/msix control reg.
There is also other way of fixing it such as reuse pirqs between driver reload,
but this way is better.
Xen-devel: http://marc.info/?l=xen-devel&m=136800120304275&w=2
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
The address_space_translate() function cuts the returned plen (page size)
to hardcoded TARGET_PAGE_SIZE. This function can be used on pages bigger
than that so this limiting should not be used on such pages.
Since originally the limiting was introduced for XEN, we can safely
limit this piece of code to XEN. So does the patch.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Add "version" property to local apic, and have it default to
0x14 for pc machines starting at 2.1. For compatibility with
previous releases, pc machines up to 2.0 will have their local
apic version set to 0x11.
Signed-off-by: Gabriel L. Somlo <somlo@cmu.edu>
Acked-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add the "boilerplate" necessary for subsequent patches to
simply drop in compat_props for pc machines 2.0 and older.
This patch contains no functional changes.
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Acked-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This is a guest-triggerable error, as seen when using Xenix 2.3.4.
Replace hw_error by LOG_UNIMPL, so that guests can continue.
With this patch, I can install and use Xenix 2.3.4a without any problem.
I can also start installation of Xenix 2.3.4q, but it fails due to not
finding an hard disk.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Some improvements for s390.
Two patches deal with address translation, one fixes a problem in the
channel subsystem code.
# gpg: Signature made Wed 07 May 2014 09:29:30 BST using RSA key ID C6F02FAF
# gpg: Can't check signature: public key not found
* remotes/cohuck/tags/s390x-20140507:
s390x/css: Don't save orb in subchannel.
s390x/helper: Added format control bit to MMU translation
s390x/helper: Fixed real-to-absolute address translation
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
migration/next for 20140505
# gpg: Signature made Mon 05 May 2014 21:27:24 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found
* remotes/juanquintela/tags/migration/20140505: (36 commits)
migration: expose xbzrle cache miss rate
migration: expose the bitmap_sync_count to the end
migration: Add counts of updating the dirty bitmap
XBZRLE: Fix one XBZRLE corruption issues
migration: remove duplicate code
Coverity: Fix failure path for qemu_accept in migration
Init the XBZRLE.lock in ram_mig_init
Provide init function for ram migration
Count used RAMBlock pages for migration_dirty_pages
Make qemu_peek_buffer loop until it gets it's data
Disallow outward migration while awaiting incoming migration
virtio: validate config_len on load
virtio-net: out-of-bounds buffer write on load
openpic: avoid buffer overrun on incoming migration
ssi-sd: fix buffer overrun on invalid state load
savevm: Ignore minimum_version_id_old if there is no load_state_old
usb: sanity check setup_index+setup_len in post_load
vmstate: s/VMSTATE_INT32_LE/VMSTATE_INT32_POSITIVE_LE/
virtio-scsi: fix buffer overrun on invalid state load
zaurus: fix buffer overrun on invalid state load
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
QOM/QTest infrastructure fixes and device conversions
* -device / device_add assertion fix
* QEMUMachine conversion to MachineClass
* Device error handling improvements
* QTest cleanups and test cases for some more PCI devices
* PortIO memory leak fixes
# gpg: Signature made Mon 05 May 2014 19:59:16 BST using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg: aka "Andreas Färber <afaerber@suse.com>"
* remotes/afaerber/tags/qom-devices-for-peter:
PortioList: Store PortioList in device state
tests: Add EHCI qtest
tests: Add ioh3420 qtest
tests: Add intel-hda qtests
tests: Add es1370 qtest
tests: Add ac97 qtest
qtest: Be paranoid about accept() addrlen argument
qtest: Add error reporting to socket_accept()
qtest: Assure that init_socket()'s listen() does not fail
MAINTAINERS: Document QOM
arm: Clean up fragile use of error_is_set() in realize() methods
qom: Clean up fragile use of error_is_set() in set() methods
hw: Consistently name Error ** objects errp, and not err
hw: Consistently name Error * objects err, and not errp
machine: Remove QEMUMachine indirection from MachineClass
machine: Replace QEMUMachine by MachineClass in accelerator configuration
vl.c: Replace QEMUMachine with MachineClass in QEMUMachineInitArgs
machine: Copy QEMUMachine's fields to MachineClass
machine: Remove obsoleted field from QEMUMachine
qdev: Fix crash by validating the object type
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
acpi build tried to add offset of hpet table to rsdt even when hpet was
disabled. If no tables follow hpet, this could lead to a malformed
rsdt.
Fix it up.
To avoid such errors in the future, rearrange code slightly to make it
clear that acpi_add_table stores the offset of the following table - not
of the previous one.
Reported-by: TeLeMan <geleman@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: qemu-stable@nongnu.org
Object returned by object_property_get_qobject needs its reference counter to
be decremented when it is not needed by caller anymore.
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
acpi_pcihp_get_bsel implements functionality of object_property_get_int for
specific property named ACPI_PCIHP_PROP_BSEL, but fails to decrement object's
reference counter properly. Rewriting it using generic object_property_get_int
serves two purposes: reducing code duplication and fixing memory leak.
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Current css code saves the operation request block (orb) in the
subchannel structure for later consumption by the start function
handler. This might make sense for asynchronous execution of the
start function (which qemu doesn't support), but not in our case;
it would even be wrong since orb contains a reference to a local
variable in the base ssch handler.
Let's just pass the orb through the start function call chain for
ssch; for rsch, we can pass NULL as the backend function does not
use any information passed via the orb there.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
With the EDAT-1 facility, the MMU translation can stop at the
segment table already, pointing to a 1 MB block. And while we're
at it, move the page table entry handling to a separate function,
too, as suggested by Alexander Graf.
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
The real-to-absolute address translation in mmu_translate() was
missing the second part for translating the page at the prefix
address back to the 0 page. And while we're at it, also moved the
code into a separate helper function since this might come in
handy for other parts of the code, too.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
smbios: make qemu generate smbios tables.
# gpg: Signature made Mon 05 May 2014 12:20:27 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-smbios-2:
SMBIOS: Build aggregate smbios tables and entry point
SMBIOS: Use bitmaps to prevent incompatible comand line options
SMBIOS: Use macro to set smbios defaults
SMBIOS: Update header file definitions
SMBIOS: Rename symbols to better reflect future use
E820: Add interface for accessing e820 table
pc: add 2.1 machine type
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/riku/linux-user-for-upstream:
linux-user: fix getrusage and wait4 failures with invalid rusage struct
linux-user/elfload.c: Support ARM HWCAP2 flags
linux-user/elfload.c: Fix A64 code which was incorrectly acting like A32
linux-user/elfload.c: Update ARM HWCAP bits
linux-user/elfload.c: Fix incorrect ARM HWCAP bits
linux-user: remove configure option for setting uname release
linux-user: move uname functions to uname.c
linux-user: rename cpu-uname -> uname
linux-user/signal.c: Set fault address in AArch64 signal info
linux-user: avoid using glibc internals in _syscall5 and in definition of target_sigevent struct
linux-user: Handle arches with llseek instead of _llseek
linux-user: Add support for SCM_CREDENTIALS.
linux-user: Move if-elses to a switch statement.
linux-user: Assert stack used for auxvec, envp, argv
linux-user: Add /proc/self/exe open forwarding
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The page may not be inserted into cache after executing save_xbzrle_page.
In case of failure to insert, the original page should be sent rather
than the page in the cache.
Signed-off-by: ChenLiang <chenliang88@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Coverity defects 1005733 & 1005734 complain about passing a negative
value to closesocket in the error paths on incoming migration.
Stash the error value and print it in the message (previously we gave
no indication of the reason for the failure)
Use error_report
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Provide ram_mig_init (like blk_mig_init) for vl.c to initialise stuff
to do with ram migration (currently in arch_init.c).
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This is a fix for a bug* triggered by a migration after hot unplugging
a few virtio-net NICs, that caused migration never to converge, because
'migration_dirty_pages' is incorrectly initialised.
'migration_dirty_pages' is used as a tally of the number of outstanding
dirty pages, to give the migration code an idea of how much more data
will need to be transferred, and thus whether it can end the iterative
phase.
It was initialised to the total size of the RAMBlock address space,
however hotunplug can leave this space sparse, and hence
migration_dirty_pages ended up too large.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
(* https://bugzilla.redhat.com/show_bug.cgi?id=1074913 )
Signed-off-by: Juan Quintela <quintela@redhat.com>
Make qemu_peek_buffer repeatedly call fill_buffer until it gets
all the data it requires, or until there is an error.
At the moment, qemu_peek_buffer will try one qemu_fill_buffer if there
isn't enough data waiting, however the kernel is entitled to return
just a few bytes, and still leave qemu_peek_buffer with less bytes
than it needed. I've seen this fail in a dev world, and I think it
could theoretically fail in the peeking of the subsection headers in
the current world.
Comment qemu_peek_byte to point out it's not guaranteed to work for
non-continuous peeks
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: ChenLiang <chenliang0016@icloud.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Malformed input can have config_len in migration stream
exceed the array size allocated on destination, the
result will be heap overflow.
To fix, that config_len matches on both sides.
CVE-2014-0182
Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
--
v2: use %ix and %zx to print config_len values
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4149 QEMU 1.3.0 out-of-bounds buffer write in
virtio_net_load()@hw/net/virtio-net.c
> } else if (n->mac_table.in_use) {
> uint8_t *buf = g_malloc0(n->mac_table.in_use);
We are allocating buffer of size n->mac_table.in_use
> qemu_get_buffer(f, buf, n->mac_table.in_use * ETH_ALEN);
and read to the n->mac_table.in_use size buffer n->mac_table.in_use *
ETH_ALEN bytes, corrupting memory.
If adversary controls state then memory written there is controlled
by adversary.
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4534
opp->nb_cpus is read from the wire and used to determine how many
IRQDest elements to read into opp->dst[]. If the value exceeds the
length of opp->dst[], MAX_CPU, opp->dst[] can be overrun with arbitrary
data from the wire.
Fix this by failing migration if the value read from the wire exceeds
MAX_CPU.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4537
s->arglen is taken from wire and used as idx
in ssi_sd_transfer().
Validate it before access.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
At the moment we require vmstate definitions to set minimum_version_id_old
to the same value as minimum_version_id if they do not provide a
load_state_old handler. Since the load_state_old functionality is
required only for a handful of devices that need to retain migration
compatibility with a pre-vmstate implementation, this means the bulk
of devices have pointless boilerplate. Relax the definition so that
minimum_version_id_old is ignored if there is no load_state_old handler.
Note that under the old scheme we would segfault if the vmstate
specified a minimum_version_id_old that was less than minimum_version_id
but did not provide a load_state_old function, and the incoming state
specified a version number between minimum_version_id_old and
minimum_version_id. Under the new scheme this will just result in
our failing the migration.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4541
s->setup_len and s->setup_index are fed into usb_packet_copy as
size/offset into s->data_buf, it's possible for invalid state to exploit
this to load arbitrary data.
setup_len and setup_index should be checked to make sure
they are not negative.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
As the macro verifies the value is positive, rename it
to make the function clearer.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4542
hw/scsi/scsi-bus.c invokes load_request.
virtio_scsi_load_request does:
qemu_get_buffer(f, (unsigned char *)&req->elem, sizeof(req->elem));
this probably can make elem invalid, for example,
make in_num or out_num huge, then:
virtio_scsi_parse_req(s, vs->cmd_vqs[n], req);
will do:
if (req->elem.out_num > 1) {
qemu_sgl_init_external(req, &req->elem.out_sg[1],
&req->elem.out_addr[1],
req->elem.out_num - 1);
} else {
qemu_sgl_init_external(req, &req->elem.in_sg[1],
&req->elem.in_addr[1],
req->elem.in_num - 1);
}
and this will access out of array bounds.
Note: this adds security checks within assert calls since
SCSIBusInfo's load_request cannot fail.
For now simply disable builds with NDEBUG - there seems
to be little value in supporting these.
Cc: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4540
Within scoop_gpio_handler_update, if prev_level has a high bit set, then
we get bit > 16 and that causes a buffer overrun.
Since prev_level comes from wire indirectly, this can
happen on invalid state load.
Similarly for gpio_level and gpio_dir.
To fix, limit to 16 bit.
Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4539
s->precision, nextprecision, function and nextfunction
come from wire and are used
as idx into resolution[] in TSC_CUT_RESOLUTION.
Validate after load to avoid buffer overrun.
Cc: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4538
s->cmd_len used as index in ssd0323_transfer() to store 32-bit field.
Possible this field might then be supplied by guest to overwrite a
return addr somewhere. Same for row/col fields, which are indicies into
framebuffer array.
To fix validate after load.
Additionally, validate that the row/col_start/end are within bounds;
otherwise the guest can provoke an overrun by either setting the _end
field so large that the row++ increments just walk off the end of the
array, or by setting the _start value to something bogus and then
letting the "we hit end of row" logic reset row to row_start.
For completeness, validate mode as well.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4533
s->rx_level is read from the wire and used to determine how many bytes
to subsequently read into s->rx_fifo[]. If s->rx_level exceeds the
length of s->rx_fifo[] the buffer can be overrun with arbitrary data
from the wire.
Fix this by validating rx_level against the size of s->rx_fifo.
Cc: Don Koch <dkoch@verizon.com>
Reported-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Don Koch <dkoch@verizon.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4535
CVE-2013-4536
Both virtio-block and virtio-serial read,
VirtQueueElements are read in as buffers, and passed to
virtqueue_map_sg(), where num_sg is taken from the wire and can force
writes to indicies beyond VIRTQUEUE_MAX_SIZE.
To fix, validate num_sg.
Reported-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-6399
vdev->queue_sel is read from the wire, and later used in the
emulation code as an index into vdev->vq[]. If the value of
vdev->queue_sel exceeds the length of vdev->vq[], currently
allocated to be VIRTIO_PCI_QUEUE_MAX elements, subsequent PIO
operations such as VIRTIO_PCI_QUEUE_PFN can be used to overrun
the buffer with arbitrary data originating from the source.
Fix this by failing migration if the value from the wire exceeds
VIRTIO_PCI_QUEUE_MAX.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4531
cpreg_vmstate_indexes is a VARRAY_INT32. A negative value for
cpreg_vmstate_array_len will cause a buffer overflow.
VMSTATE_INT32_LE was supposed to protect against this
but doesn't because it doesn't validate that input is
non-negative.
Fix this macro to valide the value appropriately.
The only other user of VMSTATE_INT32_LE doesn't
ever use negative numbers so it doesn't care.
Reported-by: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4530
pl022.c did not bounds check tx_fifo_head and
rx_fifo_head after loading them from file and
before they are used to dereference array.
Reported-by: Michael S. Tsirkin <mst@redhat.com
Reported-by: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
4) CVE-2013-4529
hw/pci/pcie_aer.c pcie aer log can overrun the buffer if log_num is
too large
There are two issues in this file:
1. log_max from remote can be larger than on local
then buffer will overrun with data coming from state file.
2. log_num can be larger then we get data corruption
again with an overflow but not adversary controlled.
Fix both issues.
Reported-by: Anthony Liguori <anthony@codemonkey.ws>
Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4527 hw/timer/hpet.c buffer overrun
hpet is a VARRAY with a uint8 size but static array of 32
To fix, make sure num_timers is valid using VMSTATE_VALID hook.
Reported-by: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4526
Within hw/ide/ahci.c, VARRAY refers to ports which is also loaded. So
we use the old version of ports to read the array but then allow any
value for ports. This can cause the code to overflow.
There's no reason to migrate ports - it never changes.
So just make sure it matches.
Reported-by: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4151 QEMU 1.0 out-of-bounds buffer write in
virtio_load@hw/virtio/virtio.c
So we have this code since way back when:
num = qemu_get_be32(f);
for (i = 0; i < num; i++) {
vdev->vq[i].vring.num = qemu_get_be32(f);
array of vqs has size VIRTIO_PCI_QUEUE_MAX, so
on invalid input this will write beyond end of buffer.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
PortioList is an abstraction used for construction of MemoryRegionPortioList
from MemoryRegionPortio. It can be used later to unmap created memory regions.
It also requires proper cleanup because some of the memory inside is allocated
dynamically.
By moving PortioList ot device state we make it possible to cleanup later and
avoid leaking memory.
This change spans several target platforms. The following testcases cover all
changed lines:
qemu-system-ppc -M prep
qemu-system-i386 -vga qxl
qemu-system-i386 -M isapc -soundhw adlib -device ib700,id=watchdog0,bus=isa.0
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Test both the ich6 and the ich9 version (cf. q35 config) and all the
codecs.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
POSIX specifies that address_len shall on output specify the length of
the stored address; it does not however specify whether it may get
updated on failure as well to, e.g., zero.
In case EINTR occurs, re-initialize the variable to the desired value.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
We're not using the GLib infrastructure here, to allow cleaning up the
sockets. Still, knowing why a certain test run failed can be valuable.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
In practice this seems very unlikely, so cleanup is neglected, as done
for bind().
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Using error_is_set(ERRP) to find out whether a function failed is
either wrong, fragile, or unnecessarily opaque. It's wrong when ERRP
may be null, because errors go undetected when it is. It's fragile
when proving ERRP non-null involves a non-local argument. Else, it's
unnecessarily opaque (see commit 84d18f0).
I guess the error_is_set(errp) in the DeviceClass realize() methods
are merely fragile right now, because I can't find a call chain that
passes a null errp argument.
Make the code more robust and more obviously correct: receive the
error in a local variable, then propagate it through the parameter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Using error_is_set(ERRP) to find out whether a function failed is
either wrong, fragile, or unnecessarily opaque. It's wrong when ERRP
may be null, because errors go undetected when it is. It's fragile
when proving ERRP non-null involves a non-local argument. Else, it's
unnecessarily opaque (see commit 84d18f0).
I guess the error_is_set(errp) in the ObjectProperty set() methods are
merely fragile right now, because I can't find a call chain that
passes a null errp argument.
Make the code more robust and more obviously correct: receive the
error in a local variable, then propagate it through the parameter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
No need to go through qemu_machine field. Use
MachineClass fields directly.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This minimizes QEMUMachine usage, as part of machine QOM-ification.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
QEMUMachine's fields are already in MachineClass. We can safely
make the switch because we copy them in machine_class_init() and
spapr_machine_class_init().
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
In order to eliminate the QEMUMachine indirection,
add its fields directly to MachineClass.
Do not yet remove qemu_machine field because it is
still in use by sPAPR.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
[AF: Copied fields for sPAPR, too]
Signed-off-by: Andreas Färber <afaerber@suse.de>
This field shouldn't be used any more since we
adopted the QOM way of iterating over the types.
The commit that obsoleted it is:
commit 261747f176
vl: Use MachineClass instead of global QEMUMachine list
The machine registration flow is refactored to use the QOM functionality.
Instead of linking the machines into a list, each machine has a type
and the types can be traversed in the QOM way.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
QEMU crashed when I try to list device parameters and the driver name is
actually an available bus name.
# qemu -device virtio-pci-bus,?
# qemu -device virtio-bus,?
# qemu -device virtio-serial-bus,?
qdev-monitor.c:212:qdev_device_help: Object 0x7fd932f50620 is not an
instance of type device
Aborted (core dumped)
We can also reproduce this bug by adding device from monitor, so it's
worth to fix the crash.
(qemu) device_add virtio-serial-bus
qdev-monitor.c:491:qdev_device_add: Object 0x7f5e89530920 is not an
instance of type device
Aborted (core dumped)
Cc: qemu-stable@nongnu.org
Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Implementations of system calls getrusage and wait4 have not previously
handled correctly cases when incorrect address of struct rusage is
passed.
This change makes sure return values are correctly set for these cases.
Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
CVE-2013-4150 QEMU 1.5.0 out-of-bounds buffer write in
virtio_net_load()@hw/net/virtio-net.c
This code is in hw/net/virtio-net.c:
if (n->max_queues > 1) {
if (n->max_queues != qemu_get_be16(f)) {
error_report("virtio-net: different max_queues ");
return -1;
}
n->curr_queues = qemu_get_be16(f);
for (i = 1; i < n->curr_queues; i++) {
n->vqs[i].tx_waiting = qemu_get_be32(f);
}
}
Number of vqs is max_queues, so if we get invalid input here,
for example if max_queues = 2, curr_queues = 3, we get
write beyond end of the buffer, with data that comes from
wire.
This might be used to corrupt qemu memory in hard to predict ways.
Since we have lots of function pointers around, RCE might be possible.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
CVE-2013-4148 QEMU 1.0 integer conversion in
virtio_net_load()@hw/net/virtio-net.c
Deals with loading a corrupted savevm image.
> n->mac_table.in_use = qemu_get_be32(f);
in_use is int so it can get negative when assigned 32bit unsigned value.
> /* MAC_TABLE_ENTRIES may be different from the saved image */
> if (n->mac_table.in_use <= MAC_TABLE_ENTRIES) {
passing this check ^^^
> qemu_get_buffer(f, n->mac_table.macs,
> n->mac_table.in_use * ETH_ALEN);
with good in_use value, "n->mac_table.in_use * ETH_ALEN" can get
positive and bigger than mac_table.macs. For example 0x81000000
satisfies this condition when ETH_ALEN is 6.
Fix it by making the value unsigned.
For consistency, change first_multi as well.
Note: all call sites were audited to confirm that
making them unsigned didn't cause any issues:
it turns out we actually never do math on them,
so it's easy to validate because both values are
always <= MAC_TABLE_ENTRIES.
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Validate state using VMS_ARRAY with num = 0 and VMS_MUST_EXIST
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Can be used to verify a required field exists or validate
state in some other way.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
move size offset and number of elements math out
to functions, to reduce code duplication.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Build an aggregate set of smbios tables and an entry point structure.
Insert tables and entry point into fw_cfg respectively under
"etc/smbios/smbios-tables" and "etc/smbios/smbios-anchor".
Machine types <= 2.0 will for now continue using field-by-field
overrides to SeaBIOS defaults, but for machine types 2.1 and up we
expect the BIOS to look for and use the aggregate tables generated
by this patch.
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
[ kraxel: fix 32bit build ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This adds migration support for OHCI.
This defines a descriptor for OHCIState.
This changes some OHCIState field types to be migration compatible.
This adds a descriptor for OHCIPort.
This migrates the EOF timer if the USB was started at the time of
migration.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Replace existing smbios_check_collision() functionality with
a pair of bitmaps: have_binfile_bitmap and have_fields_bitmap.
Bits corresponding to each smbios type are set by smbios_entry_add(),
which also uses the bitmaps to ensure that binary blobs and field
values are never accepted for the same type.
These bitmaps will also be used in the future to decide whether
or not to build a full table for a given smbios type.
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The function smbios_set_defaults() uses a repeating code pattern
for each field. This patch replaces that pattern with a macro.
This patch contains no functional changes.
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add definitions for smbios entry point (anchor), and for type 2
(base board) structure which is required by some versions of OS X.
Remove definition for type 20 (memory device mapped address)
structure, which is no longer required as of smbios spec v2.5.
Update all other structure definitions to bring them into
compliance with smbios spec v2.8.
This patch contains no functional changes.
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Rename the following symbols:
- smbios_set_type1_defaults() to the more general smbios_set_defaults();
- bool smbios_type1_defaults to the more general smbios_defaults;
- smbios_get_table() to smbios_get_table_legacy();
This patch contains no functional changes.
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add the following two functions:
- e820_get_num_entries() - query the size of the e820 table
- e820_get_entry() - grab an entry matching a given set of criteria
This interface is currently necessary for creating type 19
(memory array mapped address) structures in smbios.
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
At the moment, 2.1 and 2.0 machines are identical.
As several people are working on incompatible changes
to the PC machine, collaboration will be made easier
by merging this place-holder.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The ARM kernel has chosen to spill into the HWCAP2 ELF feature bit flags
early, even though it hasn't yet exhausted all 32 bits of the HWCAP word.
Add support for setting this in the same way we do for HWCAP.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The ARM target-specific code in elfload.c was incorrectly allowing
the 64-bit ARM target to use most of the existing 32-bit definitions:
most noticably this meant that our HWCAP bits passed to the guest
were wrong, and register handling when dumping core was totally
broken. Fix this by properly separating the 64 and 32 bit code,
since they have more differences than similarities.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-stable@nongnu.org
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The kernel has added support for a number of new ARM HWCAP bits;
add them to QEMU, including support for setting them where we have
a corresponding CPU feature bit.
We were also incorrectly setting the VFPv3D16 HWCAP -- this means
"only 16 D registers", not "supports 16-bit floating point format";
since QEMU always has 32 D registers for VFPv3, we can just remove
the line that incorrectly set this bit.
The kernel does not set the HWCAP_FPA even if it is providing FPA
emulation via nwfpe, so don't set this bit in QEMU either.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-stable@nongnu.org
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The ELF HWCAP bits for ARM features THUMBEE, NEON, VFPv3 and VFPv3D16 are
all off by one compared to the kernel definitions. Fix this discrepancy
and add in the missing CRUNCH bit which was the cause of the off-by-one
error. (We don't emulate any of the CPUs which have that weird hardware,
so it's otherwise uninteresting to us.)
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
--enable-uname-release was a rather heavyweight hammer, as it allows
providing values less that UNAME_MINIMUM_RELEASE. Also, it affects
all built linux-user targets, which in most cases is not what user
wants.
Now that we have UNAME_MINIMUM_RELEASE for all linux-user platforms,
we can drop --enable-uname-release and the related CONFIG_UNAME_RELEASE
define.
Users can still override the variable with QEMU_UNAME=2.6.32 or -r
command line option. If distributors need to update a minimum version
for a specific target, it can be done by updating UNAME_MINIMUM_RELEASE.
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Set the fault address correctly in the signal information passed
to a signal handler for AArch64 guests.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Use the public sigset_t instead of the glibc specific internal
__sigset_t in _syscall.
Calculate the sigevent pad size is calculated in similar way as kernel
does it instead of using glibc internal field _pad.
This is needed for building with musl libc.
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Recently merged kernel ports (such as OpenRISC and Meta) have an llseek
system call instead of _llseek. This is handled for the host
architecture by defining __NR__llseek as __NR_llseek, but not for the
target architecture.
Handle it in the same way for these architectures, defining
TARGET_NR__llseek as TARGET_NR_llseek.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Jia Liu <proljc@gmail.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Assert that the amount of stack space used for auxvec, envp & argv
exactly matches the amount allocated. This catches if DLINFO_ITEMS isn't
updated when another NEW_AUX_ENT is added.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
target-arm queue:
* implement XScale cache lockdown cp15 ops
* fix v7M CPUID base register
* implement WFE and YIELD as yields for A64
* fix A64 "BLR LR"
* support Cortex-A57 in virt machine model
* a few other minor AArch64 bugfixes
# gpg: Signature made Thu 01 May 2014 15:42:17 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-20140501:
hw/arm/virt: Add support for Cortex-A57
hw/arm/virt: Put GIC register banks on 64K boundaries
hw/arm/virt: Create the GIC ourselves rather than (ab)using a15mpcore_priv
target-arm: Correct a comment refering to EL0
target-arm: A64: Fix a typo when declaring TLBI ops
target-arm: A64: Handle blr lr
target-arm: Make vbar_write 64bit friendly on 32bit hosts
target-arm: implement WFE/YIELD as a yield for AArch64
armv7m_nvic: fix CPUID Base Register
target-arm: Implement XScale cache lockdown operations as NOPs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Block patches
# gpg: Signature made Wed 30 Apr 2014 19:19:32 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream: (31 commits)
curl: Fix hang reading from slow connections
curl: Ensure all informationals are checked for completion
curl: Eliminate unnecessary use of curl_multi_socket_all
curl: Remove unnecessary explicit calls to internal event handler
curl: Remove erroneous sleep waiting for curl completion
curl: Fix return from curl_read_cb with invalid state
curl: Remove unnecessary use of goto
curl: Fix long line
block/vdi: Error out immediately in vdi_create()
block/bochs: Fix error handling for seek_to_sector()
qcow2: Check min_size in qcow2_grow_l1_table()
qcow2: Catch bdrv_getlength() error
block: Use correct width in format strings
qcow2: Avoid overflow in alloc_clusters_noref()
block: Use error_abort in bdrv_image_info_specific_dump()
block: Fix open_flags in bdrv_reopen()
Revert "block: another bdrv_append fix"
block: Unlink temporary files in raw-posix/win32
block: Remove BDRV_O_COPY_ON_READ for bs->file
block: Create bdrv_backing_flags()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add helpers for enabling kvm capabilities and convert the existing
s390x and ppc users to use them.
# gpg: Signature made Wed 30 Apr 2014 14:48:45 BST using RSA key ID C6F02FAF
# gpg: Can't check signature: public key not found
* remotes/cohuck/tags/kvm_cap_helpers:
ppc: use kvm_vcpu_enable_cap()
s390x: use kvm_vcpu_enable_cap()
kvm: add kvm_{vm,vcpu}_enable_cap
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For an AArch64 CPU which supports 64K pages, having the GIC
register banks at 4K offsets is potentially awkward. Move
them out to being at 64K offsets. (This is harmless for
AArch32 CPUs and for AArch64 CPUs with 4K pages, so it is simpler
to use the same offsets everywhere than to try to use 64K offsets
only for AArch64 host CPUs.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1398362083-17737-3-git-send-email-peter.maydell@linaro.org
Rather than having the virt machine model create an a15mpcore_priv
device regardless of the actual CPU type in order to instantiate the GIC,
move to having the machine model create the GIC directly. This
corresponds to a system which uses a standalone GIC (eg the GIC-400)
rather than the one built in to the CPU core.
The primary motivation for this is to support the Cortex-A57,
which for a KVM configuration will use a GICv2, which is not
built into the CPU.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1398362083-17737-2-git-send-email-peter.maydell@linaro.org
XScale defines some implementation-specific coprocessor registers
for doing cache lockdown operations. Since QEMU doesn't model a
cache no proper implementation is possible, but NOP out the
registers so that guest code like u-boot that tries to use them
doesn't crash.
Reported-by: <prqek@centrum.cz>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
gtk: collection of fixes and cleanups by Cole Robinson
# gpg: Signature made Tue 29 Apr 2014 10:44:44 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-gtk-6:
gtk: Fix accelerators being triggered twice with gtk3
gtk: Fix -serial vc
gtk: Use ctrl+alt+q for quit accelerator
gtk: Remove use of deprecated stock items
gtk: Don't use deprecated vte_terminal_get_adjustment
gtk: Don't use deprecated gtk_image_menu_item_new_with_mnemonic
configure: Re-run make if gtkabi/sdlabi is changed
configure: Document --with-gtkabi
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When receiving a new aio read request, we first look for an existing
transaction whose range will cover the read request by the time it
completes. However, we weren't checking that the existing transaction
was still active. If it had timed out, we were adding the request to a
transaction which would never complete and had already been cancelled,
resulting in a hang.
Signed-off-by: Matthew Booth <mbooth@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
According to the documentation, the correct way to ensure all
informationals have been returned by curl_multi_info_read is to loop
until it returns NULL.
Signed-off-by: Matthew Booth <mbooth@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
curl_multi_socket_all is a deprecated catch-all which checks for
activities on all open curl sockets. We have enough information from
the event loop to check only the sockets with activity. This change
removes use of curl_multi_socket_all in favour of
curl_multi_socket_action called with the relevant handle.
At the same time, it also ensures that the driver only checks for
completion of read operations after reading from a socket, rather than
both reading and writing.
Signed-off-by: Matthew Booth <mbooth@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Remove calls to curl_multi_do where the relevant handles are already
registered to the event loop.
Ensure that we kick off socket handling with CURL_SOCKET_TIMEOUT after
adding a new handle.
Signed-off-by: Matthew Booth <mbooth@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The driver will not start more than a fixed number of curl sessions.
If it needs more, it must wait for the completion of an existing one.
The driver was sleeping, which will prevent the main loop from
running, and therefore the event it's waiting on. It was also directly
calling its internal handler rather than waiting on existing
registered handlers to be called from the main loop.
This change causes it simply to wait for a period of time whilst
allowing the main loop to execute.
Signed-off-by: Matthew Booth <mbooth@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
A curl write callback is supposed to return the number of bytes it
handled. curl_read_cb would have erroneously reported it had handled
all bytes in the event that the internal curl state was invalid.
Signed-off-by: Matthew Booth <mbooth@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Currently, if an error occurs during the part of vdi_create() which
actually writes the image, the function stores -errno, but continues
anyway.
Instead of trying to write data which (if it can be written at all) does
not make any sense without the operations before succeeding (e.g.,
writing the image header), just error out immediately.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Currently, seek_to_sector() returns -1 both for errors and unallocated
sectors, resulting in silent errors. As 0 is an invalid offset of data
clusters (bitmap_offset is greater than 0 because s->data_offset is
greater than 0), just return 0 for unallocated sectors and -errno in
case of error. This should then be propagated by bochs_read(), the sole
user of seek_to_sector().
That function also has a case of "return -1 in case of error", which is
fixed by this patch as well.
bochs_read() is called by bochs_co_read() which passes the return value
through, therefore it is indeed correct for bochs_read() to return
-errno.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
First, new_l1_size is an int64_t, whereas min_size is a uint64_t.
Therefore, during the loop which adjusts new_l1_size until it equals or
exceeds min_size, new_l1_size might overflow and become negative. The
comparison in the loop condition however will take it as an unsigned
value (because min_size is unsigned) and therefore recognize it as
exceeding min_size. Therefore, the loop is left with a negative
new_l1_size, which is not correct. This could be fixed by making
new_l1_size uint64_t.
On the other hand, however, by doing this, the while loop may take
forever. If min_size is e.g. UINT64_MAX, it will take new_l1_size
probably multiple overflows to reach the exact same value (if it reaches
it at all). Then, right after the loop, new_l1_size will be recognized
as being too big anyway.
Both problems require a ridiculously high min_size value, which is very
unlikely to occur; but both problems are also simply avoided by checking
whether min_size is sane before calculating new_l1_size (which should
still be checked separately, though).
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The call to bdrv_getlength() from qcow2_check_refcounts() may result in
an error. Check this and abort if necessary.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Instead of blindly relying on a normal integer having a width of 32 bits
(which is a pretty good assumption, but we should not rely on it if
there is no need), use the correct format string macros.
This does not touch DEBUG output.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
alloc_clusters_noref() stores the cluster index in a uint64_t. However,
offsets are often represented as int64_t (as for example the return
value of alloc_clusters_noref() itself demonstrates). Therefore, we
should make sure all offsets in the allocated range of clusters are
representable using int64_t without overflows.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Currently, bdrv_image_info_specific_dump() uses an error variable for
visit_type_ImageInfoSpecific, but ignores the result. As this function
is used here with an output visitor to transform the ImageInfoSpecific
object to a generic QDict, an error should actually be impossible. It is
however better to assert that this is indeed the case. This is done by
this patch using error_abort instead of an unused local Error variable.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Use the same function as bdrv_open() for determining what the right
flags for bs->file are. Without doing this, a reopen means that
bs->file loses BDRV_O_CACHE_WB or BDRV_O_UNMAP if bs doesn't have it as
well.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This reverts commit 3a389e7926. The commit
was wrong and what it tried to fix just works today without any change.
What the commit tried to fix:
When creating live snapshots, the new image file is opened with
BDRV_O_NO_BACKING because the whole backing chain is already opened.
It is then appended to the chain using bdrv_append(). The result of
this was that the image had a backing file, but BDRV_O_NO_BACKING
was still set. This is obviously inconsistent.
There used to be some places in qemu that closed and image and then
opened it again, with its old flags (a bdrv_open()/close() sequence
involves reopening the whole backing file chain, too). In this case
the BDRV_O_NO_BACKING flag meant that the backing chain wasn't
reopened and only the top layer was left.
(Most, but not all of these places are replaced by bdrv_reopen()
today, which doesn't touch the backing files at all.)
Other places that looked at bs->open_flags weren't interested in
BDRV_O_NO_BACKING, so no breakage there.
What it actually did:
The commit moved the BDRV_O_NO_BACKING away to the backing file.
Because the bdrv_open()/close() sequences only looked at the flags
of the top level BlockDriverState and used it for the whole chain,
the flag didn't hurt there any more. Obviously, it is still
inconsistent because the backing file may have another backing file,
but without practical impact.
At the same time, it swapped all other flags. This is practically
irrelevant as long as live snapshots only allow opening the new
layer with the same flags as the old top layer. It still doesn't
make any sense, and it is a time bomb that explodes as soon as the
flags can differ.
bdrv_append_temp_snapshot() is such a case: It adds the new flag
BDRV_O_TEMPORARY for the temporary snapshot. The swapping of commit
3a389e79 results in the following nonsensical configuration:
bs->open_flags: BDRV_O_TEMPORARY cleared
bs->file->open_flags: BDRV_O_TEMPORARY set
bs->backing_hd->open_flags: BDRV_O_TEMPORARY set
bs->backing_hd->file->open_flags: BDRV_O_TEMPORARY cleared
We're still lucky because the format layer ignores the flag and the
protocol layer happens to get the right value, but sooner or later
this is bound to go wrong...
What the right fix would have been:
Simply clear the BDRV_O_NO_BACKING flag when the BlockDriverState is
appended to an existing backing file chain, because now it does have
a backing file.
Commit 4ddc07ca already implemented this silently in bdrv_append(),
so we don't have to come up with a new fix.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Instead of having unlink() calls in the generic block layer, where we
aren't even guarateed to have a file name, move them to those block
drivers that are actually used and that always have a filename. Gets us
rid of some #ifdefs as well.
The patch also converts bs->is_temporary to a new BDRV_O_TEMPORARY open
flag so that it is inherited in the protocol layer and the raw-posix and
raw-win32 drivers can unlink the file.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Copy on Read makes sense on the format level where backing files are
implemented, but it's not required on the protocol level. While it
shouldn't actively break anything to have COR enabled on both layers,
needless serialisation and allocation checks may impact performance.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Instead of manipulation flags inline, move the derivation of the flags
of a backing file into a new function next to the existing functions
that derive flags for bs->file and for the block driver open function.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Instead of having bdrv_open_flags() as a function that creates flags for
several unrelated places and then adding open-coded flags on top, create
a new function that derives the flags for bs->file from the flags for bs.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Add a test which discards a compressed cluster on qcow2. This should
work without any problems.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
discard_single_l2() should not implement its own version of
qcow2_get_cluster_type(), but rather rely on this already existing
function. By doing so, it will work for compressed clusters as well
(which it did not so far).
Also, rename "old_offset" to "old_l2_entry", as both are quite different
(and the value is indeed of the latter kind).
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Both tests 019 and 086 need proper quotations to work with pathnames
that contain spaces.
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The _rm_test_img() function in common.rc did not quote the image
file, which left droppings in the scratch directory (and performed
a potentially unsafe rm -f).
This adds the necessary quotes.
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
TCG sparc backend update for 20140428
# gpg: Signature made Mon 28 Apr 2014 19:36:55 BST using RSA key ID 4DD0279B
# gpg: Can't check signature: public key not found
* remotes/rth/tags/tcg-sparc-pull-20140428:
tcg-sparc: Accept stores of zero
tcg-sparc: Fix small 32-bit movi
tcg-sparc: Fixup function argument types
tcg-sparc: Hoist common argument loads in tcg_out_op
tcg-sparc: Don't handle mov/movi in tcg_out_op
tcg-sparc: Tidy check_fit_* tests
tcg-sparc: Implement muls2_i32
tcg-sparc: Use the RETURN instruction
tcg-sparc: Use 64-bit registers with sparcv8plus
tcg-sparc: Support trunc_shr_i32
tcg-sparc: Remove most uses of TCG_TARGET_REG_BITS
tcg: Add INDEX_op_trunc_shr_i32
tcg: Fix missed pointer size != TCG_TARGET_REG_BITS changes
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
bdrv_get_info could fail. Add check before using the returned value.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The direct return will skip releasing of all the resouces at
immediate_exit, don't miss that.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Some block drivers have multiple BlockDriver instances with identical
format_name fields (e.g. gluster, nbd).
Both qemu-img and qemu will use bdrv_iterate_format() to list the
supported formats when a help option is invoked. As protocols and
formats may register multiple drivers, redundant listings of formats
occur (e.g., "Supported formats: ... gluster gluster gluster gluster ...
").
Since the list of driver formats will be small, this performs a simple
linear search on format_name, and ignores any duplicates.
The end result change is that the iterator will no longer receive
duplicate string names, nor will it receive NULL pointers.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
depending on the target the opt_unmap_gran might be as low
as 4K. As we know use this also as a knob to activate the allocationmap
feature lower the barrier. The limit 4K (and not 512) is choosen
to avoid a potentially too big allocationmap.
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
this patch implements a cache that tracks if a page on the
iscsi target is allocated or not. The cache is implemented in
a way that it allows for false positives
(e.g. pretending a page is allocated, but it isn't), but
no false negatives.
The cached allocation info is then used to speed up the
read process for unallocated sectors by issueing a GET_LBA_STATUS
request for all sectors that are not yet known to be allocated.
If the read request is confirmed to fall into an unallocated
range we directly return zeroes and do not transfer the
data over the wire.
Tests have shown that a relatively small amount of GET_LBA_STATUS
requests happens a vServer boot time to fill the allocation cache
(all those blocks are not queried again).
Not to transfer all the data of unallocated sectors saves a lot
of time, bandwidth and storage I/O load during block jobs or storage
migration and it saves a lot of bandwidth as well for any big sequential
read of the whole disk (e.g. block copy or speed tests) if a significant
number of blocks is unallocated.
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In SDL2, wheel movement is its own event, not a button event. Wire
it up similar to gtk.c
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Allows you to resize the sdl2 window and have the guest notice.
[ kraxel: zero-initialize QemuUIInfo ]
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When keyboard focus is grabbed, current qemu wants to pass every
keypress to the VM, unless the user is pressing a UI accelerator.
That's exactly how things work without any of the fancy handling. Drop
the special handling, which seems to trigger accelerators twice on gtk3.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Try kicking off a rhel5 text install over serial, the text menu navigation
is all messed up, and some of the kernel boot messages are randomly
corrupted.
Drop use of a pty and just use vte infrastructure for reading and writing.
This fixes the above corruption, and is simpler to boot.
(I don't know what was wrong with the original code though. FWIW this is
what virt-manager has done for years).
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Stock items are deprecated. As are ImageMenuItems. Convert everything to
text only MenuItems, with the same text content as mentioned in the
conversion guide:
https://docs.google.com/spreadsheet/pub?key=0AsPAM3pPwxagdGF4THNMMUpjUW5xMXZfdUNzMXhEa2c&output=html
gtk2 users lose their menu icons as well, but I don't think that's enough
of a problem to warrant keeping around back compat code.
Example error:
ui/gtk.c:1328:5: error: ‘GtkStock’ is deprecated [-Werror=deprecated-declarations]
ui/gtk.c:1335:5: error: ‘gtk_image_menu_item_new_from_stock’ is deprecated (declared at /usr/include/gtk-3.0/gtk/deprecated/gtkimagemenuitem.h:78): Use 'gtk_menu_item_new' instead [-Werror=deprecated-declarations]
s->zoom_out_item = gtk_image_menu_item_new_from_stock(GTK_STOCK_ZOOM_OUT, NULL);
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Guard this with a VTE version check, since I'm not sure if this is backwards
compatible.
ui/gtk.c: In function ‘gd_vc_init’:
ui/gtk.c:1176:5: error: ‘vte_terminal_get_adjustment’ is deprecated (declared at /usr/include/vte-2.90/vte/vtedeprecated.h:101) [-Werror=deprecated-declarations]
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In these cases we weren't using an image in the menu item anyways, so
just do as the suggestion says. Should be fine for all qemu supported
gtk versions.
ui/gtk.c: In function ‘gd_create_menu_machine’:
ui/gtk.c:1284:5: error: ‘gtk_image_menu_item_new_with_mnemonic’ is deprecated (declared at /usr/include/gtk-3.0/gtk/deprecated/gtkimagemenuitem.h:76): Use 'gtk_menu_item_new_with_mnemonic' instead [-Werror=deprecated-declarations]
s->reset_item = gtk_image_menu_item_new_with_mnemonic(_("_Reset"));
^
ui/gtk.c:1287:5: error: ‘gtk_image_menu_item_new_with_mnemonic’ is deprecated (declared at /usr/include/gtk-3.0/gtk/deprecated/gtkimagemenuitem.h:76): Use 'gtk_menu_item_new_with_mnemonic' instead [-Werror=deprecated-declarations]
s->powerdown_item = gtk_image_menu_item_new_with_mnemonic(_("Power _Down"));
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reconfiguring with a different --with-gtkabi or --with-sdlabi doesn't
trigger a remake. Generate an (unused) CONFIG_GTKABI/CONFIG_SDLABI
so config-host.h will actually give 'make' something to trigger on.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
They don't advertise mixer support, but still allow the guest change
mixer settings. Add a check to avoid it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This allows qemu-img to print out version information, without
needing to print the long help wall of text.
While there, perform some minor whitespace cleanup, and remove the
unused option_index variable in the call to getopt_long().
Reported-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Use TCGReg everywhere appropriate. Use int32_t for all arguments
that may be registers or immediate constants. Merge tcg_out_addi
into its only caller.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Use sextract instead of raw bit shifting for the tests. Introduce
a new check_fit_ptr macro to make it clear we're looking at pointers.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Using the 32-bit SMUL is a tad more efficient than
resorting to extending and using the 64-bit MULX.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Quite a lot of effort was spent composing and decomposing 64-bit
quantities in registers, when we should just create them and leave
them as one 64-bit register.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Replace with SPARC64 define. Soon even sparcv8plus will use
64-bit register as far as TCG is concerned.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Although bdrv_getlength() was just called above this, and checked for
error, it is better to just use the value we already get, and use
DIV_ROUND_UP.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This fixes a bug introduced in commit ac1307ab, that caused the
'--help' option to not be recognized as a valid command, and not
print any help.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* remotes/otubo/seccomp:
seccomp: add shmctl(), mlock(), and munlock() to the syscall whitelist
seccomp: add timerfd_create and timerfd_settime to the whitelist
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
if the iscsi driver receives a write zeroes request with
the BDRV_REQ_MAY_UNMAP flag set it fails with -ENOTSUP
if the iscsi target does not support WRITE SAME with
UNMAP. However, the BDRV_REQ_MAY_UNMAP is only a hint
and writing zeroes with WRITE SAME will still be
better than falling back to writing zeroes with WRITE16.
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* remotes/qmp-unstable/queue/qmp:
monitor: fix qmp_getfd() fd leak in error case
HMP: support specifying dump format for dump-guest-memory
HMP: fix doc of dump-guest-memory
qmp: object-add: Validate class before creating object
monitor: Add device_add and device_del completion.
monitor: Add command_completion callback to mon_cmd_t.
monitor: Fix drive_del id argument type completion.
error: Remove some unused headers
qerror.h: Replace QERR_NOT_SUPPORTED with QERR_UNSUPPORTED
qerror.h: Remove QERR defines that are only used once
qerror.h: Remove unused error classes
error: Print error_report() to stderr if using qmp
monitor: Remove unused monitor_print_filename
error: Privatize error_print_loc
vnc: Remove default_mon usage
slirp: Remove default_mon usage
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Some hardware instances do support MSI, so we should do likewise.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
MSI-X support has been fixed in qemu, so we can enable it again.
Signed-off-by: Hannes Reinecke <hare@suse.de>
[Do not change VMSTATE_PCI_DEVICE to PCIE. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Newer firmware implement a LD_LIST_QUERY command, and due to a driver
issue no drives might be detected if this command isn't supported.
So add emulation for this command, too.
Cc: qemu-stable@nongnu.org
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Remove the "scsi-block:" prefix for error messages as suggested
by Markus.
Improve the previous patch by making the message the same for both
scsi-block and scsi-generic, including the strerror() output in both
and making an explicit reference to SG_IO. Also s/can not/cannot/.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Block pull request
# gpg: Signature made Fri 25 Apr 2014 17:05:13 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/block-pull-request:
iscsi: Don't use error_is_set() to suppress additional errors
blockdev: Clean up fragile use of error_is_set()
nbd: Use return values instead of error_is_set(errp)
qemu-img: Consistently name Error * objects err, and not errp
Use error_is_set() only when necessary (again)
block: Expose host_* drivers in blockdev-add
MAINTAINERS: Add qemu-img/io to block subsystem
qemu-iotests: Improve and make use of QMPTestCase.wait_until_completed()
doc: add -drive rerror=,werror= to qemu --help output
block: Prevent coroutine stack overflow when recursing in bdrv_open_backing_file.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Net patches
# gpg: Signature made Fri 25 Apr 2014 15:07:31 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/net-pull-request:
net: Don't use error_is_set() to suppress additional errors
net: Make qmp_query_rx_filter() with name argument more obvious
net: xilinx_axienet.c: Add phy soft reset bit clearing
net/net.c: Remove unnecessary semicolon
pcnet: remove duplicate assignment
tap: Avoid extra iterations while closing file fd
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
More often it is that bdrv_ioctl fails due to not supported by driver or
whatever reason, in this case we should be specific, because "interface
too old" is very confusing.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Some s390x patches:
- gdb stubs to make it compile if gdb support is pulled in
- linux-headers update for new oneregs
- two onereg enhancements
# gpg: Signature made Fri 25 Apr 2014 12:42:46 BST using RSA key ID C6F02FAF
# gpg: Can't check signature: public key not found
* remotes/cohuck/tags/s390x-20140425:
s390x/kvm: sync gbea and pp register
s390x/kvm: rework KVM synchronize to tracing for some ONEREGS
linux-headers update
s390x: empty function stubs in preparation for __KVM_HAVE_GUEST_DEBUG
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add a standard vga variant which doesn't occupy any legacy
resources and thus can easily be used as secondary (or legacy-free)
graphics adapter. Programming must be done using the MMIO bar.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Need a way to opt-out from vga.vram being global vmstate, for
secondary vga cards. Add a bool parameter to vga_common_init
to support this.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The smbd forked by qemu still uses the default ncalrpc directory
in /var/run/samba. This may lead to problems, if /var/run/samba
does not exist (for example if /var/run is a tmpfs and the host
smbd was not started).
This leads to the following error message from samba
and an unworkable smbd:
Failed to create pipe directory /var/run/samba/ncalrpc - No such file or directory
Fix this by pointing smbd to /tmp/qemu-smb.%d.%d/ncalrpc as ncalrpc directory.
Smbd will create the actual ncalrpc subdirectory on its own.
Signed-off-by: Michael Buesch <m@bues.ch>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Applying this to -trivial because it _is_ rather trivial
and because Jan does not reply for months)
The rule for messages.po appears to be slightly wrong.
Move the `cd' command within parens.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Tested-by: Stefan Weil <sw@weilnetz.de>
Fields "name" (created with strdup in new_entry) and "pathname"
(created with g_strdup_printf in new_entry) of pathelem struct should
be freed before the whole struct is.
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The "Q" of the logo is already included in pc-bios/qemu_logo_no_text.svg.
This file now adds the complete logo as it was designed by Benoît Canet.
Benoît licensed it under CC-BY 3.0, see
http://lists.gnu.org/archive/html/qemu-devel/2012-02/msg02865.html.
Unneeded borders from Benoît's original logo were removed,
and metadata (license, author, date) was added in this version.
Cc: Benoît Canet <benoit@irqsave.net>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
'writeconfig' supports output to stdout (with '-'); when that happens,
we must not close stdout, or further command line options that also use
stdout will be impacted. (Although 'writeconfig' was copied from
'readconfig', the latter does not have the problem because it does not
support reading from '-')
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
CODING_STYLE frowns upon mixing declarations and statements. main()
has such a declaration. Clean up by eliminating the variable.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
"This if else has no code between it and the end of the enclosing
while loop. This makes this continue redundant."
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
A few more cleanups for .gitignore file.
The final goal is to have only files in there which
are generated during build. Things like .orig or
.gdbinit are definitely not generated during build.
Also, anchor a few more build-time directories.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Old:
There are two paths to show help and exit 1, one is with "-h" or
"--help", one is with invalid options.
New:
Show help and exit 0 for --help.
On invalid option, don't show the long help and bury the early "ERROR:"
line, just give a message pointing to --help.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Adds option to -m
"size" - startup memory amount
For compatibility with legacy CLI if suffix-less number is passed,
it assumes amount in Mb.
Otherwise user is free to use suffixed number using suffixes b,k/K,M,G
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
These functions don't need type casts (as does cpu_physical_memory_rw)
and also make the code better readable.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Additional testing reveals that PulseAudio requires shmctl() and the
mlock()/munlock() syscalls on some systems/configurations. As before,
on systems that do require these syscalls, the problem can be seen with
the following command line:
# qemu -monitor stdio -sandbox on \
-device intel-hda -device hda-duplex
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eduardo Otubo <otubo@linux.vnet.ibm.com>
Using error_is_set(errp) that way can sweep programming errors under
the carpet when we get called incorrectly with an error set.
Commit 24d3bd6 added a broken error path to iscsi_do_inquiry(): it
first calls error_setg(), then jumps to the preexisting error label,
where error_setg() gets called again, triggering an assertion failure.
Commit cbee81f fixed this by guarding the second error_setg() with an
error_is_set().
Replace this fix by a simpler and safer one: jump right behind the
second error_setg().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Using error_is_set(ERRP) to find out whether a function failed is
either wrong, fragile, or unnecessarily opaque. It's wrong when ERRP
may be null, because errors go undetected when it is. It's fragile
when proving ERRP non-null involves a non-local argument. Else, it's
unnecessarily opaque (see commit 84d18f0).
The error_is_set(errp) in internal_snapshot_prepare() is merely
fragile, because the caller never passes a null errp argument.
Make the code more robust and more obviously correct: receive the
error in a local variable, then propagate it through the parameter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Using error_is_set(errp) to check whether a function call failed is
fragile: it breaks when errp is null. Check perfectly suitable return
values instead when possible. errp can't be null there now, but this
is more robust and more obviously correct
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
error_is_set(&var) is the same as var != NULL, but it takes
whole-program analysis to figure that out. Unnecessarily hard for
optimizers, static checkers, and human readers. Commit 84d18f0 dumbed
it down to obvious, but a few more have crept in since, and
documentation was overlooked. Dumb these down, too.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
All the functionality to use the host_device, host_cdrom and host_floppy
drivers is already there, they just need to be added to the schema.
The block driver names containing underscores are preexisting and cannot
be changed without breaking command line compatibility.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
qemu-img and qemu-io were not covered by any MAINTAINERS entry so far.
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
These options are already documented on the man page but missing from
qemu --help.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
In 1.7.1 qcow2_create2 reopen the file for flushing without the BDRV_O_NO_BACKING
flags.
As a consequence the code would recursively open the whole backing chain.
These three stack arrays would pile up through the recursion and lead to a coroutine
stack overflow.
Convert these array to malloced buffers in order to streamline the coroutine
footprint.
Symptoms where freezes or segfaults on production machines while taking QMP externals
snapshots. The overflow disturbed coroutine switching.
[Resolved conflicts on qemu.git/master since the patch was against v1.7.1
--Stefan]
Signed-off-by: Benoit Canet <benoit.canet@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
qemu_chr_fe_get_msgfd() transfers ownership of the file descriptor to
the caller. Therefore all code paths in qmp_getfd() should either
register the file descriptor somewhere or close it.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Currently it is very easy to crash QEMU by issuing an object-add command
using an abstract class or a class that doesn't support
TYPE_USER_CREATABLE as parameter.
Example: with the following QMP command:
(QEMU) object-add qom-type=cpu id=foo
QEMU aborts at:
ERROR:qom/object.c:335:object_initialize_with_type: assertion failed: (type->abstract == false)
This patch moves the check for TYPE_USER_CREATABLE before object_new(),
and adds a check to prevent the code from trying to instantiate abstract
classes.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Tested-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Using error_is_set(errp) that way can sweep programming errors under
the carpet when we get called incorrectly with an error set.
qmp_query_rx_filter() breaks its loop when it detects an error. It
needs to set another error when the loop completes normally.
Return right away instead of merely breaking the loop.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
With a client name, the QMP command is specified to return a list of
one element. This isn't locally obvious in the code. Make it so.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Convert object_add and object_del commands to use the new callback.
Signed-off-by: Hani Benhabiles <hani@linux.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
monitor_printf will drop the requested output if cur_mon is qmp (for
good reason). However these messages are often helpful for debugging
issues with via libvirt.
If we know the message won't hit the monitor, send it to stderr.
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
These errors don't seem user initiated, so forcibly printing to the
monitor doesn't seem right. Just use error_report.
Drop lprint since it's now unused.
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
target-alpha queue pull for 20140424
# gpg: Signature made Thu 24 Apr 2014 20:44:23 BST using RSA key ID 4DD0279B
# gpg: Can't check signature: public key not found
* remotes/rth/tags/tgt-axp-pull-20140424: (40 commits)
target-alpha: Remove cpu_unique, cpu_sysval, cpu_usp
target-alpha: Tidy alpha_translate_init
target-alpha: Don't issue goto_tb under singlestep
target-alpha: Use non-local temps for zero/sink
target-alpha: Use extract to get insn fields
target-alpha: Convert mfpr/mtpr to source/sink
target-alpha: Convert gen_cpys et al to source/sink
target-alpha: Convert gen_fcvtlq/ql to source/sink
target-alpha: Convert gen_fcmov to source/sink
target-alpha: Convert gen_bcond to source/sink
target-alpha: Convert most ieee insns to source/sink
target-alpha: Convert gen_ieee_input to source/sink
target-alpha: Convert MVIOP2 to source/sink
target-alpha: Convert ARITH3 to source/sink
target-alpha: Convert FARITH3 to source/sink
target-alpha: Convert FARITH2 to source/sink
target-alpha: Convert gen_zap/not to source/sink
target-alpha: Convert gen_ins_h/l to source/sink
target-alpha: Convert gen_ext_h/l to source/sink
target-alpha: Convert gen_msk_h/l to source/sink
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Avoid iterations for fd 0, 1 & 2 when we are closing file fds in child process.
Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Block patches
# gpg: Signature made Wed 23 Apr 2014 11:02:29 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream:
block/cloop: use PRIu32 format specifier for uint32_t
vmdk: Fix "%x" to PRIx32 in format strings for cid
qemu-img: Improve error messages
qemu-iotests: Check common namespace for id and node-name
block: Catch duplicate IDs in bdrv_new()
qemu-img: Avoid duplicate block device IDs
block: Add errp to bdrv_new()
convert fprintf() calls to error_setg() in block/qed.c:bdrv_qed_create()
block: Remove -errno return value from bdrv_assign_node_name
curl: Replaced old error handling with error reporting API.
block: Handle error of bdrv_getlength in bdrv_create_dirty_bitmap
vmdk: Fix %d and %lld to PRI* in format strings
block: Check bdrv_getlength() return value in bdrv_make_zero()
block: Catch integer overflow in bdrv_rw_co()
block: Limit size to INT_MAX in bdrv_check_byte_request()
block: Fix nb_sectors check in bdrv_check_byte_request()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Some ONE_REGS on s390 are not protected by a capability. Older kernels
might not provide those and return an error. Fortunately these registers
are only critical for the migration path. There is no need to error out
on reset and normal runtime. Furthermore, these kernels don't provide
a proper dirty bitmap anyway, so let's use tracing for those errors.
Also provide generic one reg helper to simplify the code.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This patch creates empty function stubs (used by the gdbserver) in preparation
for the hw debugging support by kvm on s390, which will enable the
__KVM_HAVE_GUEST_DEBUG define in the linux headers and require these methods on
the qemu side.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Pull tcg 2014-04-22
# gpg: Signature made Tue 22 Apr 2014 22:00:04 BST using RSA key ID 4DD0279B
# gpg: Can't check signature: public key not found
* remotes/rth/tags/tcg-next-20140422:
tcg: Use HOST_WORDS_BIGENDIAN
tcg: Fix fallback from muls2_i64 to mulu2_i64
tcg: Use tcg_gen_mulu2_i32 in tcg_gen_muls2_i32
tcg: Relax requirement for mulu2_i32 on 32-bit hosts
tcg-s390: Remove W constraint
tcg-sparc: Use the type parameter to tcg_target_const_match
tcg-ppc64: Use the type parameter to tcg_target_const_match
tcg-aarch64: Remove w constraint
tcg: Add TCGType parameter to tcg_target_const_match
tcg: Fix out of range shift in deposit optimizations
tci: Mask shift counts to avoid undefined behavior
tcg: Mask shift quantities while folding
tcg: Use "unspecified behavior" for shifts
tcg: Fix warning (1 bit signed bitfield entry) and replace int by bool
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Pull for 20140421
# gpg: Signature made Mon 21 Apr 2014 17:57:24 BST using RSA key ID 4DD0279B
# gpg: Can't check signature: public key not found
* remotes/rth/tags/tcg-ia64-pull-20140421:
tcg-ia64: Convert to new ldst opcodes
tcg-ia64: Move part of softmmu slow path out of line
tcg-ia64: Convert to new ldst helpers
tcg-ia64: Reduce code duplication in tcg_out_qemu_ld
tcg-ia64: Move tlb addend load into tlb read
tcg-ia64: Move bswap for store into tlb load
tcg-ia64: Re-bundle the tlb load
tcg-ia64: Optimize small arguments to exit_tb
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
trivial patches for 2014-04-18
# gpg: Signature made Fri 18 Apr 2014 07:36:15 BST using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg: aka "Michael Tokarev <mjt@corpit.ru>"
# gpg: aka "Michael Tokarev <mjt@debian.org>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5
# Subkey fingerprint: 6F67 E18E 7C91 C5B1 5514 66A7 BEE5 9D74 A4C3 D7DB
* remotes/mjt/tags/trivial-patches-2014-04-18:
Fix grammar in comment
doc: grammify "allows to"
configure: Remove redundant message for -Werror
scripts: add sample model file for Coverity Scan
xbzrle.c: Avoid undefined behaviour with signed arithmetic
int128.h: Avoid undefined behaviours involving signed arithmetic
hw/ide/ahci.c: Avoid shift left into sign bit
net: Report error when device / hub combo is not found.
configure: Fix indentation of help for --enable/disable-debug-info
qga: trivial fix for unclear documentation of guest-set-time
vl: Report accelerator not supported for target more nicely
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
PRIu32 is the format string specifier for uint32_t, let's use it.
Variables ->block_size, ->n_blocks, and i are all uint32_t.
Suggested-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Implementation of a USB Media Transfer Device device for easy
filesharing. Read-only. No access control inside qemu, it will
happily export any file it is able to open to the guest, i.e.
standard unix access rights for the qemu process apply.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Previously, when there is a user error in argv parsing, qemu-img prints
help text and exits.
Add an error_exit function to print a helpful error message and a hint
to run 'qemu-img --help' for more information.
As a bonus, "qemu-img <cmd> --help" now has a more reasonable exit code
0.
In the future the help text should be split by sub command, and only
print the information for the specified command.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
A name that is taken by an ID can't be taken by a node-name at the same
time. Check that conflicts are correctly detected.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Since commit f298d071, block devices added with blockdev-add don't have
a QemuOpts around in dinfo->opts. Consequently, we can't rely any more
on QemuOpts catching duplicate IDs for block devices.
This patch adds a new check for duplicate IDs to bdrv_new(), and moves
the existing check that the ID isn't already taken for a node-name there
as well.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
qemu-img used to use "image" as ID for all block devices. This means
that e.g. img_convert() ended up with potentially multiple source images
and one target image, all with the same ID. The next patch will catch
this and fail to open the block device.
This patch makes sure that qemu-img uses meaningful unique IDs for the
block devices it uses.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This patch adds an errp parameter to bdrv_new() and updates all its
callers. The next patches will make use of this in order to check for
duplicate IDs. Most of the callers know that their ID is fine, so they
can simply assert that there is no error.
Behaviour doesn't change with this patch yet as bdrv_new() doesn't
actually assign errors to errp.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This patch converts fprintf() calls to error_setg() in block/qed.c:bdrv_qed_create()
(error_setg() is part of error reporting API in include/qapi/error.h)
Signed-off-by: Aakriti Gupta <aakritty@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
bdrv_getlength could fail, check the return value before using it.
Return NULL and set errno if it fails. Callers are updated to handle
the error case.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Insanely large requests could cause an integer overflow in
bdrv_rw_co() while converting sectors to bytes. This patch catches the
problem and returns an error (if we hadn't overflown the integer here,
bdrv_check_byte_request() would have rejected the request, so we're not
breaking anything that was supposed to work before).
We actually do have a test case that triggers behaviour where we
accidentally let such a request pass, so that it would return success,
but read 0 bytes instead of the requested 4 GB. It fails now like it
should.
If the vdi block driver wants to be able to deal with huge images, it
can't read the whole block bitmap at once into memory like it does
today, but needs to use a metadata cache like qcow2 does.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Commit 8f4754ed intended to protect against integer overflow bugs in
block drivers by making sure that a single request that is passed to
drivers is no longer than INT_MAX bytes.
However, meanwhile there are some callers that don't use that code path
any more but call bdrv_check_byte_request() directy, so let's add a
check there as well.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Brown Bag sez, don't put the fallback code into the wrong function.
Also, check for muluh_i64 and use tcg_gen_mulu2_i64 instead of raw ops.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Instead require either mulu2_i32 or muluh_i32. The code in tcg-op.h
already supports looking for both. Previous incomplete conversion?
Signed-off-by: Richard Henderson <rth@twiddle.net>
Most 64-bit targets need to be able to ignore the high bits
of a TCG_TYPE_I32 value.
Suggested-by: Stuart Brady <sdb@zubnet.me.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
By inspection, for a deposit(x, y, 0, 64), we'd have a shift of (1<<64)
and everything else falls apart. But we can reuse the existing deposit
logic to get this right.
Signed-off-by: Richard Henderson <rth@twiddle.net>
TCG now requires unspecified behavior rather than a potential crash,
bring the C shift within the letter of the law.
Signed-off-by: Richard Henderson <rth@twiddle.net>
The TCG result would be undefined, but we can at least produce one
plausible result and avoid triggering the wrath of analysis tools.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Change the definition such that shifts are not allowed to crash
for any input.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Static code analyzers complain about signed bitfields with only a single
bit. is_ld is used as a boolean value, so make it bool.
ppc64 already used bool for the 2nd argument is_ld of the local function
add_qemu_ldst_label. Modify all other TCG targets to do follow this
example.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
English language grammar does not allow usage
of the word "allows" directly followed by an
infinitive, declaring constructs like "something
allows to do somestuff" un-grammatical. Often
it is possible to just insert "one" between "allows"
and "to" to make the construct grammatical, but
usually it is better to re-phrase the statement.
This patch tries to fix 4 examples of "allows to"
usage in qemu doc, but does not address comments
in the code with similar constructs. It also adds
missing "the" in the same line.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The compiler flag -Werror is printed (or not printed) as any other
compiler flag which is part of QEMU_CFLAGS.
Therefore an extra output line for -Werror is redundant and can be removed.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This is the model file that is being used for the QEMU project's scans
on scan.coverity.com. It fixed about 30 false positives (10% of the
total) and exposed about 60 new memory leaks.
The file is not automatically used; changes to it must be propagated
to the website manually by an admin (right now Markus, Peter and me
are admins).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Use unsigned types for doing bitwise arithmetic in the xzbrle
calculations, to avoid undefined behaviour:
xbzrle.c:99:49: runtime error: left shift of 72340172838076673
by 7 places cannot be represented in type 'long'
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Add casts when we're performing arithmetic on the .hi parts of an
Int128, to avoid undefined behaviour.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Add U suffix to avoid shifting left into the sign bit, which
is undefined behaviour.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Also convert nearby monitor_printf() call to error_report().
Signed-off-by: Hani Benhabiles <hani@linux.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The help text for the --enable-debug-info and --disable-debug-info
command line options was misindented: delete the stray extra space
and bring it in to line with everything else.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
We mixed the use of "guest time", "system time", "hardware time",
"RTC" in documentation, it's unclear.
This patch just added two remarks of RTC and replace two "guest time"
by "guest's system time".
Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
When you ask for an accelerator not supported for your target, you get
a bogus "accelerator does not exist" message:
$ qemu-system-arm -machine none,accel=kvm
KVM not supported for this target
"kvm" accelerator does not exist.
No accelerator found!
Suppress it.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Still inline, but updated to the new routines. Always use the LE
helpers, reusing the bswap between the fast and slot paths.
Signed-off-by: Richard Henderson <rth@twiddle.net>
This sequencing requires 5 stop bits instead of 6, and has room left
over to pre-load the tlb addend, and bswap data prior to being stored.
Signed-off-by: Richard Henderson <rth@twiddle.net>
target-arm queue:
* AArch64 system mode support; this is all the CPU emulation code
but not the virt board support
* cadence_ttc match register bugfix
* Allwinner A10 PIC, PIT and ethernet fixes
[with update to avoid duplicate typedef]
* zynq-slcr rewrite
* cadence_gem bugfix
* fix for SMLALD/SMLSLD insn in A32
* fix for SQXTUN in A64
# gpg: Signature made Thu 17 Apr 2014 21:35:57 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-20140417-1: (51 commits)
target-arm: A64: fix unallocated test of scalar SQXTUN
arm: translate.c: Fix smlald Instruction
net: cadence_gem: Make phy respond to broadcast
misc: zynq_slcr: Make DB_PRINTs always compile
misc: zynq_slcr: Convert SBD::init to object init
misc: zynq-slcr: Rewrite
allwinner-emac: update irq status after writes to interrupt registers
allwinner-emac: set autonegotiation complete bit on link up
allwinner-a10-pit: implement prescaler and source selection
allwinner-a10-pit: use level triggered interrupts
allwinner-a10-pit: avoid generation of spurious interrupts
allwinner-a10-pic: fix behaviour of pending register
allwinner-a10-pic: set vector address when an interrupt is pending
timer: cadence_ttc: Fix match register write logic
target-arm/gdbstub64.c: remove useless 'break' statement.
target-arm: Dump 32-bit CPU state if 64 bit CPU is in AArch32
target-arm: Handle the CPU being in AArch32 mode in the AArch64 set_pc
target-arm: Make Cortex-A15 CBAR read-only
target-arm: Implement CBAR for Cortex-A57
target-arm: Implement Cortex-A57 implementation-defined system registers
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The smlald (and probably smlsld) instruction was doing incorrect sign
extensions of the operands amongst 64bit result calculation. The
instruction psuedo-code is:
operand2 = if m_swap then ROR(R[m],16) else R[m];
product1 = SInt(R[n]<15:0>) * SInt(operand2<15:0>);
product2 = SInt(R[n]<31:16>) * SInt(operand2<31:16>);
result = product1 + product2 + SInt(R[dHi]:R[dLo]);
R[dHi] = result<63:32>;
R[dLo] = result<31:0>;
The result calculation should be done in 64 bit arithmetic, and hence
product1 and product2 should be sign extended to 64b before calculation.
The current implementation was adding product1 and product2 together
then sign-extending the intermediate result leading to false negatives.
E.G. if product1 = product2 = 0x4000000, their sum = 0x80000000, which
will be incorrectly interpreted as -ve on sign extension.
We fix by doing the 64b extensions on both product1 and product2 before
any addition/subtraction happens.
We also fix where we were possibly incorrectly setting the Q saturation
flag for SMLSLD, which the ARM ARM specifically says is not set.
Reported-by: Christina Smith <christina.smith@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 2cddb6f5a15be4ab8d2160f3499d128ae93d304d.1397704570.git.peter.crosthwaite@xilinx.com
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Near total rewrite of this device model. It is stylistically
obsolete, has numerous coverity fails and is not up to date with latest
Xilinx documentation. Fix.
The registers are flattened into a single array. This greatly simplifies
the MMIO accessor functions.
We take the oppurtunity to update the register Macro definitions to
match the latest TRM. Xilinx has de-documented some regs hence there are
some straight deletions. We only do this however in the case or a stock
read-as-written reset-zero register. Non-zero resets are always
preserved. New register definitions are added as needed.
This all comes with a VMSD version break as the union layout from before
was a bit strange and we are better off without it.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 3aa016167b352ed224666909217137285fd3351d.1396503037.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For system mode, we may have a 64 bit CPU which is currently executing
in AArch32 state; if we're dumping CPU state to the logs we should
therefore show the correct state for the current execution state,
rather than hardwiring it based on the type of the CPU. For consistency
with how we handle translation, we leave the 32 bit dump function
as the default, and have it hand off control to the 64 bit dump code
if we're in AArch64 mode.
Reported-by: Rob Herring <rob.herring@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The AArch64 implementation of the set_pc method needs to be updated to
handle the possibility that the CPU is in AArch32 mode; otherwise there
are weird crashes when doing interprocessing in system emulation mode
when an interrupt occurs and we fail to resynchronize the 32-bit PC
with the TB we need to execute next.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
The Cortex-A15's CBAR register is actually read-only (unlike that
of the Cortex-A9). Correct our model to match the hardware.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
The Cortex-A57, like most of the other ARM cores, has a CBAR
register which defines the base address of the per-CPU
peripherals. However it has a 64-bit view as well as a
32-bit view; expand the QOM reset-cbar property from UINT32
to UINT64 so this can be specified, and implement the
32-bit and 64-bit views of a 64-bit CBAR.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement a subset of the Cortex-A57's implementation defined system
registers. We provide RAZ/WI or reads-as-constant/writes-ignored
implementations of the various control and syndrome reigsters.
We do not implement registers which provide direct access to and
manipulation of the L1 cache, since QEMU doesn't implement caches.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement the AArch64 RVBAR register, which indicates the reset
address. Since the reset address is implementation defined and
usually configurable by setting config signals in hardware, we
also provide a QOM property so it can be set at board level if
necessary.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement the auxiliary fault status registers AFSR0_EL1 and
AFSR1_EL1. These are present on v7 and later, and have IMPDEF
behaviour; we choose to RAZ/WI for all cores.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Many of the reginfo definitions in cp_reginfo[] use CP_ANY wildcards.
This is for a combination of reasons:
* early ARM implementations really did underdecode
* earlier versions of QEMU underdecoded and we can't tighten
this up because we don't know if guests really require this or not
* implementation convenience
For ARMv8 the architecture has tightened things up and system and
coprocessor registers are always specifically decoded. We take
advantage of this opportunity for a clean break by restricting
our CP_ANY wildcarded reginfo to pre-v8 CPUs, and providing
specifically decoded versions where necessary for v8 CPUs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
In ARMv8 the 32 bit coprocessor ID register space is tidied up to
remove the wildcarded aliases of the MIDR and the RAZ behaviour
for the unassigned space where crm = 3..7. Make sure we don't
expose thes wildcards for v8 cores. This means we need to have
a specific implementation for REVIDR, an IMPDEF register which
may be the same as the MIDR (and which we always implement as such).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
The AArch64 usermode 'any' CPU type was accidentally specified
with the ARM_FEATURE_THUMB2EE bit set. This is incorrect since
ARMv8 removes Thumb2EE completely. Since we never implemented
Thumb2EE anyway having the feature bit set was fairly harmless
for user-mode, but the correct thing is to not set it at all.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement the ISR_EL1 register. This is actually present in
ARMv7 as well but was previously unimplemented. It is a
read-only register that indicates whether interrupts are
currently pending.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement the AArch64 view of the ACTLR (auxiliary control
register). Note that QEMU internally tends to call this
AUXCR for historical reasons.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement AArch64 view of the CONTEXTIDR register.
We tighten up the condition when we flush the TLB on a CONTEXTIDR
write to avoid needlessly flushing the TLB every time on a 64
bit system (and also on a 32 bit system using LPAE, as a bonus).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
All the AArch32 ID registers are visible from AArch64
(in addition to the AArch64-specific ID_AA64* registers).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
For ARMv8 there are two changes to the MVFR media feature registers:
* there is a new MVFR2 which is accessible from 32 bit code
* 64 bit code accesses these via the usual sysreg instructions
rather than with a floating-point specific instruction
Implement this.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement exception handling for AArch64 EL1. Exceptions from AArch64 or
AArch32 EL0 are supported.
Signed-off-by: Rob Herring <rob.herring@linaro.org>
[PMM: fixed minor style nits; updated to match changes in
previous patches; added some of the simpler cases of
illegal-exception-return support]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Move arm_log_exception() into internals.h so we can use it from
helper-a64.c for the AArch64 exception entry code.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement the AArch64 SPSR_EL1. For compatibility with how KVM
handles SPSRs and with the architectural mapping between AArch32
and AArch64, we put this in the banked_spsr[] array in the slot
that is used for SVC in AArch32. This means we need to extend the
array from uint32_t to uint64_t, which requires some reworking
of the 32 bit KVM save/restore code.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement handling for the AArch64 SP_EL0 system register.
This holds the EL0 stack pointer, and is only accessible when
it's not being used as the stack pointer, ie when we're in EL1
and EL1 is using its own stack pointer. We also provide a
definition of the SP_EL1 register; this isn't guest visible
as a system register for an implementation like QEMU which
doesn't provide EL2 or EL3; however it is useful for ensuring
the underlying state is migrated.
We need to update the state fields in the CPU state whenever
we switch stack pointers; this happens when we take an exception
and also when SPSEL is used to change the bit in PSTATE which
indicates which stack pointer EL1 should use.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Add the AArch64 ELR_EL1 register.
Note that this does not live in env->cp15: for KVM migration
compatibility we need to migrate it separately rather than
as part of the system registers, because the KVM-to-userspace
interface puts it in the struct kvm_regs rather than making
them visible via the ONE_REG ioctls.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement AArch64 views of ESR_EL1 and FAR_EL1, and make the 32 bit
DFSR, DFAR, IFAR share state with them as architecturally specified.
The IFSR doesn't share state with any AArch64 register visible at EL1,
so just rename the state field without widening it to 64 bits.
Signed-off-by: Rob Herring <rob.herring@linaro.org>
[PMM: Minor tweaks; fix some bugs involving inconsistencies between
use of offsetof() or offsetoflow32() and struct field width]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
The ARM946 model currently uses the c5_data and c5_insn fields in the CPU
state struct to store the contents of its access permission registers.
This is confusing and a good source of bugs because for all the MMU-based
CPUs those fields are fault status and fault address registers, which
behave completely differently; they just happen to use the same cpreg
encoding. Split them out to use their own fields instead.
These registers are only present in PMSAv5 MPU systems (of which the
ARM946 is our only current example); PMSAv6 and PMSAv7 (which we have
no implementations of) handle access permissions differently. We name
the new state fields accordingly.
Note that this change fixes a bug where a data abort or prefetch abort
on the ARM946 would accidentally corrupt the access permission registers
because the interrupt handling code assumed the c5_data and c5_insn
fields were always fault status registers.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement the DC ZVA instruction, which clears a block of memory.
The fast path obtains a pointer to the underlying RAM via the TCG TLB
data structure so we can do a direct memset(), with fallback to a
simple byte-store loop in the slow path.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Suppress the ID_AA64DFR0_EL1 PMUVer field, even if the CPU specific
value claims that it exists. QEMU doesn't currently implement it,
and not advertising it prevents the guest from trying to use it
and getting UNDEFs on unimplemented registers.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
---
This is arguably a hack, but otherwise Linux tries to prod
half a dozen PMU sysregs.
Add support for v8 page table walks. This supports stage 1 translations
for 4KB, 16KB and 64KB page sizes starting with 0 or 1 level.
Signed-off-by: Rob Herring <rob.herring@linaro.org>
[PMM: fix style nits, fold in 16/64K page support patch, use
arm_el_is_aa64() to decide whether to do 64 bit page table walk]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
The current A32/T32 decoder bases its "is VFP/Neon enabled?" check
on the FPSCR.EN bit. This is correct if EL1 is AArch32, but for
an AArch64 EL1 the logic is different: it must act as if FPSCR.EN
is always set. Instead, trapping must happen according to CPACR
bits for cp10/cp11; these cover all of FP/Neon, including the
FPSCR/FPSID/MVFR register accesses which FPSCR.EN does not affect.
Add support for CPACR checks (which are also required for ARMv7,
but were unimplemented because Linux happens not to use them)
and make sure they generate exceptions with the correct syndrome.
We actually return incorrect syndrome information for cases
where FP is disabled but the specific instruction bit pattern
is unallocated: strictly these should be the Uncategorized
exception, not a "SIMD disabled" exception. This should be
mostly harmless, and the structure of the A32/T32 VFP/Neon
decoder makes it painful to put the 'FP disabled?' checks in
the right places.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Because unallocated encodings generate different exception syndrome
information from traps due to FP being disabled, we can't do a single
"is fp access disabled" check at a high level in the decode tree.
To help in catching bugs where the access check was forgotten in some
code path, we set this flag when the access check is done, and assert
that it is set at the point where we actually touch the FP regs.
This requires us to pass the DisasContext to the vec_reg_offset
and fp_reg_offset functions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
For the A64 instruction set, the only FP/Neon disable trap
is the CPACR FPEN bits, which may indicate "enabled", "disabled"
or "disabled for EL0". Add a bit to the AArch64 tb flags indicating
whether FP/Neon access is currently enabled and make the decoder
emit code to raise exceptions on use of FP/Neon insns if it is not.
We use a new flag in DisasContext rather than borrowing the
existing vfp_enabled flag because the A32/T32 decoder is going
to need both.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
---
I'm aware this is a rather hard to review patch; sorry.
I have done an exhaustive check that we have fp access checks
in all code paths with the aid of the assertions added in the
next patch plus the code-coverage hack patch I posted to the
list earlier.
This patch is correct as of
09e037354 target-arm: A64: Add saturating accumulate ops (USQADD/SUQADD)
which was the last of the Neon insns to be added, so assuming
no refactoring of the code it should be fine.
Set up the required syndrome information when we detect an MMU fault.
Signed-off-by: Rob Herring <rob.herring@linaro.org>
[PMM: split out from exception handling patch, tweaked to bring
in line with how we create other kinds of syndrome information]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Add new helpers exception_with_syndrome (for generating an exception
with syndrome information) and exception_uncategorized (for generating
an exception with "Unknown or Uncategorized Reason", which have a syndrome
register value of zero), and use them to generate the correct syndrome
information for exceptions which are raised directly from generated code.
This patch includes moving the A32/T32 gen_exception_insn functions
further up in the source file; they will be needed for "VFP/Neon disabled"
exception generation later.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
For exceptions taken to AArch64, if a coprocessor/system register
access fails due to a trap or enable bit then the syndrome information
must include details of the failing instruction (crn/crm/opc1/opc2
fields, etc). Make the decoder construct the syndrome information
at translate time so it can be passed at runtime to the access-check
helper function and used as required.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
For AArch32 exceptions, the only information provided about
the cause of an exception is the individual exception type (data
abort, undef, etc), which we store in cs->exception_index. For
AArch64, the CPU provides much more detail about the cause of
the exception, which can be found in the syndrome register.
Create a set of fields in CPUARMState which must be filled in
whenever an exception is raised, so that exception entry can
correctly fill in the syndrome register for the guest.
This includes the information which in AArch32 appears in
the DFAR and IFAR (fault address registers) and the DFSR
and IFSR (fault status registers) for data aborts and
prefetch aborts, since if we end up taking the MMU fault
to AArch64 rather than AArch32 this will need to end up
in different system registers.
This patch does a refactoring which moves the setting of the
AArch32 DFAR/DFSR/IFAR/IFSR from the point where the exception
is raised to the point where it is taken. (This is no change
for cores with an MMU, retains the existing clearly incorrect
behaviour for ARM946 of trashing the MP access permissions
registers which share the c5_data and c5_insn state fields,
and has no effect for v7M because we don't implement its
MPU fault status or address registers.)
As a side effect of the cleanup we fix a bug in the AArch64
linux-user mode code where we were passing a 64 bit fault
address through the 32 bit c6_data/c6_insn fields: it now
goes via the always-64-bit exception.vaddress.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement the DAIF system register which is a view of the
DAIF bits in PSTATE. To avoid needing a readfn, we widen
the daif field in CPUARMState to uint64_t.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Currently cpu.h defines a mixture of functions and types needed by
the rest of QEMU and those needed only by files within target-arm/.
Split the latter out into a new header so they aren't needlessly
exposed further than required.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
* remotes/rth/tcg-aarch-6-5: (25 commits)
tcg-aarch64: Use tcg_out_mov in preference to tcg_out_movr
tcg-aarch64: Prefer unsigned offsets before signed offsets for ldst
tcg-aarch64: Introduce tcg_out_insn_3312, _3310, _3313
tcg-aarch64: Merge aarch64_ldst_get_data/type into tcg_out_op
tcg-aarch64: Introduce tcg_out_insn_3507
tcg-aarch64: Support stores of zero
tcg-aarch64: Implement TCG_TARGET_HAS_new_ldst
tcg-aarch64: Pass qemu_ld/st arguments directly
tcg-aarch64: Use TCGMemOp in qemu_ld/st
tcg-aarch64: Use ADR to pass the return address to the ld/st helpers
tcg-aarch64: Use tcg_out_call for qemu_ld/st
tcg-aarch64: Avoid add with zero in tlb load
tcg-aarch64: Implement tcg_register_jit
tcg-aarch64: Introduce tcg_out_insn_3314
tcg-aarch64: Reuse LR in translated code
tcg-aarch64: Use CBZ and CBNZ
tcg-aarch64: Create tcg_out_brcond
tcg-aarch64: Use symbolic names for branches
tcg-aarch64: Use adrp in tcg_out_movi
tcg-aarch64: Special case small constants in tcg_out_movi
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Technically, these variables could have been referenced both via
offsets from env and as TCG registers, which would be illegal.
Of course, that could only be done from PALcode, and ours doesn't
do that.
But honestly, these are used infrequently enough that they don't
really need to be TCG registers. We wind up with exactly the same
code if we follow the letter of the law and issue explicit ld/st.
Signed-off-by: Richard Henderson <rth@twiddle.net>
This one fixes a bug, previously noted as supressing exceptions
in the (unlikely) case the destination register was $f31.
Signed-off-by: Richard Henderson <rth@twiddle.net>
We were missing quite a few checks for Ra or Rb required to be 31.
Further, the one place we did check we also checked for no literal
operand and the Handbook says nothing about that.
Signed-off-by: Richard Henderson <rth@twiddle.net>
The methods by which we check for cpu features varied wildly
across the function. Using a nice macro cleans this up.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Conform to coding style, and avoid further occurrences of bugs due to
misplaced braces.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
The assembler seems to prefer them, perhaps we should too.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Replace aarch64_ldst_op_data with AArch64LdstType, as it wasn't encoded
for the proper shift for the field and was confusing.
Merge aarch64_ldst_op_data, AArch64LdstType, and a few stray opcode bits
into a single I3312_* argument, eliminating some magic numbers from the
helper functions.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Cleaning up the implementation of REV and REV16 at the same time.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Making the bswap conditional on the memop instead of a compile-time test.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Some guest env are small enough to reach the tlb with only a 12-bit addition.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Combines 4 other inline functions and tidies the prologue.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
It's obviously call-clobbered, but is otherwise unused.
Repurpose it as the TCG temporary.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
A compare and branch against zero happens at the start of
every single TB.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Rearrange code to put the compare and branch in the same place.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
The subset of logical immediates that we support is quite quick to test,
and such constants are quite common to want to load.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
When profitable, initialize the register with MOVN instead of MOVZ,
before setting the remaining lanes with MOVK.
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Since the kernel doesn't pass any info on the reason for the fault,
disassemble the instruction to detect a store.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-04-16 12:12:32 -04:00
860 changed files with 25848 additions and 14523 deletions
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