This driver is like virtio-balloon on steroids: it allows both changing the
guest memory allocation via ballooning and (in the next patch) inserting
pieces of extra RAM into it on demand from a provided memory backend.
The actual resizing is done via ballooning interface (for example, via
the "balloon" HMP command).
This includes resizing the guest past its boot size - that is, hot-adding
additional memory in granularity limited only by the guest alignment
requirements, as provided by the next patch.
In contrast with ACPI DIMM hotplug where one can only request to unplug a
whole DIMM stick this driver allows removing memory from guest in single
page (4k) units via ballooning.
After a VM reboot the guest is back to its original (boot) size.
In the future, the guest boot memory size might be changed on reboot
instead, taking into account the effective size that VM had before that
reboot (much like Hyper-V does).
For performance reasons, the guest-released memory is tracked in a few
range trees, as a series of (start, count) ranges.
Each time a new page range is inserted into such tree its neighbors are
checked as candidates for possible merging with it.
Besides performance reasons, the Dynamic Memory protocol itself uses page
ranges as the data structure in its messages, so relevant pages need to be
merged into such ranges anyway.
One has to be careful when tracking the guest-released pages, since the
guest can maliciously report returning pages outside its current address
space, which later clash with the address range of newly added memory.
Similarly, the guest can report freeing the same page twice.
The above design results in much better ballooning performance than when
using virtio-balloon with the same guest: 230 GB / minute with this driver
versus 70 GB / minute with virtio-balloon.
During a ballooning operation most of time is spent waiting for the guest
to come up with newly freed page ranges, processing the received ranges on
the host side (in QEMU and KVM) is nearly instantaneous.
The unballoon operation is also pretty much instantaneous:
thanks to the merging of the ballooned out page ranges 200 GB of memory can
be returned to the guest in about 1 second.
With virtio-balloon this operation takes about 2.5 minutes.
These tests were done against a Windows Server 2019 guest running on a
Xeon E5-2699, after dirtying the whole memory inside guest before each
balloon operation.
Using a range tree instead of a bitmap to track the removed memory also
means that the solution scales well with the guest size: even a 1 TB range
takes just a few bytes of such metadata.
Since the required GTree operations aren't present in every Glib version
a check for them was added to the meson build script, together with new
"--enable-hv-balloon" and "--disable-hv-balloon" configure arguments.
If these GTree operations are missing in the system's Glib version this
driver will be skipped during QEMU build.
An optional "status-report=on" device parameter requests memory status
events from the guest (typically sent every second), which allow the host
to learn both the guest memory available and the guest memory in use
counts.
Following commits will add support for their external emission as
"HV_BALLOON_STATUS_REPORT" QMP events.
The driver is named hv-balloon since the Linux kernel client driver for
the Dynamic Memory Protocol is named as such and to follow the naming
pattern established by the virtio-balloon driver.
The whole protocol runs over Hyper-V VMBus.
The driver was tested against Windows Server 2012 R2, Windows Server 2016
and Windows Server 2019 guests and obeys the guest alignment requirements
reported to the host via DM_CAPABILITIES_REPORT message.
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
If printing a QAPI schema object for debugging we get the classname and
a hex value for the instance:
<qapi.schema.QAPISchemaEnumType object at 0x7f0ab4c2dad0>
<qapi.schema.QAPISchemaObjectType object at 0x7f0ab4c2dd90>
<qapi.schema.QAPISchemaArrayType object at 0x7f0ab4c2df90>
With this change we instead get the classname and the human friendly
name of the QAPI type instance:
<QAPISchemaEnumType:CpuS390State at 0x7f0ab4c2dad0>
<QAPISchemaObjectType:CpuInfoS390 at 0x7f0ab4c2dd90>
<QAPISchemaArrayType:CpuInfoFastList at 0x7f0ab4c2df90>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20231018120500.2028642-1-berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Conditional swapped to avoid negation]
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[Tweaked to mollify pylint]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Some very minor housekeeping to make the linters happy once more.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20231004230532.3002201-4-jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
* Support for VFIODisplay migration with ramfb
* Preliminary work for IOMMUFD support
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Merge tag 'pull-vfio-20231018' of https://github.com/legoater/qemu into staging
vfio queue:
* Support for VFIODisplay migration with ramfb
* Preliminary work for IOMMUFD support
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# gpg: Signature made Wed 18 Oct 2023 04:16:06 EDT
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# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [unknown]
# gpg: aka "Cédric Le Goater <clg@kaod.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
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* tag 'pull-vfio-20231018' of https://github.com/legoater/qemu: (22 commits)
hw/vfio: add ramfb migration support
ramfb-standalone: add migration support
ramfb: add migration support
vfio/pci: Remove vfio_detach_device from vfio_realize error path
vfio/ccw: Remove redundant definition of TYPE_VFIO_CCW
vfio/ap: Remove pointless apdev variable
vfio/pci: Fix a potential memory leak in vfio_listener_region_add
vfio/common: Move legacy VFIO backend code into separate container.c
vfio/common: Introduce a global VFIODevice list
vfio/common: Store the parent container in VFIODevice
vfio/common: Introduce a per container device list
vfio/common: Move VFIO reset handler registration to a group agnostic function
vfio/ccw: Use vfio_[attach/detach]_device
vfio/ap: Use vfio_[attach/detach]_device
vfio/platform: Use vfio_[attach/detach]_device
vfio/pci: Introduce vfio_[attach/detach]_device
vfio/common: Extract out vfio_kvm_device_[add/del]_fd
vfio/common: Introduce vfio_container_add|del_section_window()
vfio/common: Propagate KVM_SET_DEVICE_ATTR error if any
vfio/common: Move IOMMU agnostic helpers to a separate file
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Update the script to import iommufd.h
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Store the -Werror and SMBD defaults in the machine file, which still allows
them to be overridden on the command line and enables automatic parsing
of the related options.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Enable Windows-specific defaults with a machine file, so that related
options can be automatically parsed and included in the help message.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Keep together all the conditions that lead to disabling plugins, and
remove now-dead code.
Since the option was not in SKIP_OPTIONS, it was present twice in
the help message, both from configure and from meson-buildoptions.sh.
Remove the duplication and take the occasion to document the option as
autodetected, which it is.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Say QEMU is configured with bindir = "/usr/bin" and a firmware path
that starts with "/usr/share/qemu". Ever since QEMU 5.2, QEMU's
install has been relocatable: if you move qemu-system-x86_64 from
/usr/bin to /home/username/bin, it will start looking for firmware in
/home/username/share/qemu. Previously, you would get a non-relocatable
install where the moved QEMU will keep looking for firmware in
/usr/share/qemu.
Windows almost always wants relocatable installs, and in fact that
is why QEMU 5.2 introduced relocatability in the first place.
However, newfangled distribution mechanisms such as AppImage
(https://docs.appimage.org/reference/best-practices.html), and
possibly NixOS, also dislike using at runtime the absolute paths
that were established at build time.
On POSIX systems you almost never care; if you do, your usecase
dictates which one is desirable, so there's no single answer.
Obviously relocatability works fine most of the time, because not many
people have complained about QEMU's switch to relocatable install,
and that's why until now there was no way to disable relocatability.
But a non-relocatable, non-modular binary can help if you want to do
experiments with old firmware and new QEMU or vice versa (because you
can just upgrade/downgrade the firmware package, and use rpm2cpio or
similar to extract the QEMU binaries outside /usr), so allow both.
This patch allows one to build a non-relocatable install using a new
option to configure. Why? Because it's not too hard, and because
it helps the user double check the relocatability of their install.
Note that the same code that handles relocation also lets you run QEMU
from the build tree and pick e.g. firmware files from the source tree
transparently. Therefore that part remains active with this patch,
even if you configure with --disable-relocatable.
Suggested-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When called from git-send-email, some results contain unclosed
parentheses from the subsystem title, for example:
(cc-cmd) Adding cc: qemu-ppc@nongnu.org (open list:PowerNV (Non-Virt...) from: 'scripts/get_maintainer.pl --nogit-fallback'
(cc-cmd) Adding cc: qemu-devel@nongnu.org (open list:All patches CC here) from: 'scripts/get_maintainer.pl --nogit-fallback'
Unmatched () '(open list:PowerNV (Non-Virt...)' '' at /usr/lib/git-core/git-send-email line 642.
error: unable to extract a valid address from: qemu-ppc@nongnu.org (open list:PowerNV (Non-Virt...)
What to do with this address? ([q]uit|[d]rop|[e]dit): d
This commit removes all parentheses from results.
Signed-off-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231013091628.669415-1-manos.pitsidianakis@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Meson tries to run scripts via the shebang line if they files are
marked as executable. If "python3" is not in the $PATH, or if it
is a version that is too old, then the script execution fails.
We should make sure to run scripts via the python3 interpreter
that is used for Meson itself. For this, the files need to be marked
as non-executable, then meson will use the python3 binary that has
been used to run itself.
Fixes: 956af7daad ("gdbstub: Introduce GDBFeature structure")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20231016094917.19044-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The migration code uses unsigned values for 16, 32 and 64-bit
operations. Fix the script to do the same.
This was causing an issue when parsing the migration stream generated
on the ppc64 target because one of instance_ids was larger than the
32bit signed maximum:
Traceback (most recent call last):
File "/home/fabiano/kvm/qemu/build/scripts/analyze-migration.py", line 658, in <module>
dump.read(dump_memory = args.memory)
File "/home/fabiano/kvm/qemu/build/scripts/analyze-migration.py", line 592, in read
classdesc = self.section_classes[section_key]
KeyError: ('spapr_iommu', -2147483648)
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231009184326.15777-6-farosas@suse.de>
The script is currently broken when the x-ignore-shared capability is
used:
Traceback (most recent call last):
File "./scripts/analyze-migration.py", line 656, in <module>
dump.read(dump_memory = args.memory)
File "./scripts/analyze-migration.py", line 593, in read
section.read()
File "./scripts/analyze-migration.py", line 163, in read
self.name = self.file.readstr(len = namelen)
File "./scripts/analyze-migration.py", line 53, in readstr
return self.readvar(len).decode('utf-8')
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x82 in position 55: invalid start byte
We're currently adding data to the middle of the ram section depending
on the presence of the capability. As a consequence, any code loading
the ram section needs to know about capabilities so it can interpret
the stream.
Skip the byte that's added when x-ignore-shared is used to fix the
script.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231009184326.15777-5-farosas@suse.de>
The script is broken when the configuration/capabilities section is
present. Add support for parsing the capabilities so we can fix it in
the next patch.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231009184326.15777-4-farosas@suse.de>
The 'configuration' state subsections are currently not being parsed
and the script fails when analyzing an aarch64 stream:
Traceback (most recent call last):
File "./scripts/analyze-migration.py", line 625, in <module>
dump.read(dump_memory = args.memory)
File "./scripts/analyze-migration.py", line 571, in read
raise Exception("Unknown section type: %d" % section_type)
Exception: Unknown section type: 5
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231009184326.15777-3-farosas@suse.de>
Python PR:
- Use socketpair for all machine.py connections
- Support Python 3.12
- Switch iotests over to using raise-on-error QMP command interface
(Thank you very much, Vladimir!)
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Merge tag 'python-pull-request' of https://gitlab.com/jsnow/qemu into staging
Python Pullreq
Python PR:
- Use socketpair for all machine.py connections
- Support Python 3.12
- Switch iotests over to using raise-on-error QMP command interface
(Thank you very much, Vladimir!)
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# gpg: Signature made Fri 13 Oct 2023 15:09:13 EDT
# gpg: using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F 18F2 88A9 064D 1835 61EB
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* tag 'python-pull-request' of https://gitlab.com/jsnow/qemu: (25 commits)
python: use vm.cmd() instead of vm.qmp() where appropriate
scripts: add python_qmp_updater.py
tests/vm/basevm.py: use cmd() instead of qmp()
iotests.py: pause_job(): drop return value
iotests: drop some extra ** in qmp() call
iotests: drop some extra semicolons
iotests: refactor some common qmp result checks into generic pattern
iotests: add some missed checks of qmp result
iotests: QemuStorageDaemon: add cmd() method like in QEMUMachine.
python/machine.py: upgrade vm.cmd() method
python/qemu: rename command() to cmd()
python: rename QEMUMonitorProtocol.cmd() to cmd_raw()
scripts/cpu-x86-uarch-abi.py: use .command() instead of .cmd()
qmp_shell.py: _fill_completion() use .command() instead of .cmd()
python/qemu/qmp/legacy: cmd(): drop cmd_id unused argument
Python: Enable python3.12 support
configure: fix error message to say Python 3.8
python/qmp: remove Server.wait_closed() call for Python 3.12
Python/iotests: Add type hint for nbd module
python/machine: remove unused sock_dir argument
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
- Clean up coroutine versions of bdrv_{is_allocated,block_status}*
- Graph locking part 5 (protect children/parent links)
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Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging
Block layer patches
- Clean up coroutine versions of bdrv_{is_allocated,block_status}*
- Graph locking part 5 (protect children/parent links)
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# gpg: Signature made Thu 12 Oct 2023 12:20:15 EDT
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* tag 'for-upstream' of https://repo.or.cz/qemu/kevin: (26 commits)
block: Add assertion for bdrv_graph_wrlock()
block: Protect bs->children with graph_lock
block: Protect bs->parents with graph_lock
block: Mark bdrv_get_specific_info() and callers GRAPH_RDLOCK
block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK
block: Mark bdrv_op_is_blocked() and callers GRAPH_RDLOCK
qcow2: Mark check_constraints_on_bitmap() GRAPH_RDLOCK
qcow2: Mark qcow2_inactivate() and callers GRAPH_RDLOCK
qcow2: Mark qcow2_signal_corruption() and callers GRAPH_RDLOCK
block: Mark bdrv_amend_options() and callers GRAPH_RDLOCK
block: Mark bdrv_get_parent_name() and callers GRAPH_RDLOCK
block: Mark bdrv_primary_child() and callers GRAPH_RDLOCK
block: Mark bdrv_refresh_filename() and callers GRAPH_RDLOCK
block: Mark bdrv_get_xdbg_block_graph() and callers GRAPH_RDLOCK
block: Take graph rdlock in parts of reopen
block: Mark bdrv_snapshot_fallback() and callers GRAPH_RDLOCK
block: Mark bdrv_parent_cb_resize() and callers GRAPH_RDLOCK
block: Mark drain related functions GRAPH_RDLOCK
block: Mark bdrv_first_blk() and bdrv_is_root_node() GRAPH_RDLOCK
block: Take graph rdlock in bdrv_inactivate_all()
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
A script, to update the pattern
result = self.vm.qmp(...)
self.assert_qmp(result, 'return', {})
(and some similar ones) into
self.vm.cmd(...)
Used in the next commit
"python: use vm.cmd() instead of vm.qmp() where appropriate"
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20231006154125.1068348-15-vsementsov@yandex-team.ru
Signed-off-by: John Snow <jsnow@redhat.com>
Use a shorter name. We are going to move in iotests from qmp() to
command() where possible. But command() is longer than qmp() and don't
look better. Let's rename.
You can simply grep for '\.command(' and for 'def command(' to check
that everything is updated (command() in tests/docker/docker.py is
unrelated).
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-id: 20231006154125.1068348-6-vsementsov@yandex-team.ru
[vsementsov: also update three occurrences in
tests/avocado/machine_aspeed.py and keep r-b]
Signed-off-by: John Snow <jsnow@redhat.com>
Here we don't expect a failure. In case of failure we'll crash on
trying to access ['return']. Better is to use .command() that clearly
raises on failure.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20231006154125.1068348-4-vsementsov@yandex-team.ru
Signed-off-by: John Snow <jsnow@redhat.com>
Add a new wrapper type for GRAPH_RDLOCK functions that should be called
from coroutine context.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230929145157.45443-3-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
If a script is executable and has a shebang line, Meson treats it as
a normal executable, so that this script here is run via the "python3"
binary in the $PATH. However, "python3" might not be in the $PATH at
all, or it might be a wrong version, so we should make sure to run
this script via the Python version that has been chosen for the QEMU
build process. The best way to do this is to remove the executable bit
from the access mode bits. (See also commit 4b424c7571)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1918
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Before this change, the information from a XML file was stored in an
array that is not descriptive. Introduce a dedicated structure type to
make it easier to understand and to extend with more fields.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230912224107.29669-6-akihiko.odaki@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231009164104.369749-13-alex.bennee@linaro.org>
The softmmu/ directory contains files specific to system
emulation. Rename it as system/. Update meson rules, the
MAINTAINERS file and all the documentation and comments.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004090629.37473-14-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This build option has been deprecated since 8.0.
Remove all CONFIG_GPROF code that depends on that,
including one errant check using TARGET_GPROF.
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* fix for KVM on Apple M2
* introduce machine property "audiodev"
* ui/vnc: Require audiodev= to enable audio
* audio: remove QEMU_AUDIO_* and -audio-help support
* audio: forbid using default audiodev backend with -audiodev and -nodefaults
* remove compatibility code for old machine types
* make-release: do not ship dtc sources
* build system cleanups
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* fix from optionrom build
* fix for KVM on Apple M2
* introduce machine property "audiodev"
* ui/vnc: Require audiodev= to enable audio
* audio: remove QEMU_AUDIO_* and -audio-help support
* audio: forbid using default audiodev backend with -audiodev and -nodefaults
* remove compatibility code for old machine types
* make-release: do not ship dtc sources
* build system cleanups
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# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 03 Oct 2023 04:30:00 EDT
# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (24 commits)
audio: forbid default audiodev backend with -nodefaults
audio: propagate Error * out of audio_init
vt82c686 machines: Support machine-default audiodev with fallback
hw/ppc: Support machine-default audiodev with fallback
hw/arm: Support machine-default audiodev with fallback
Introduce machine property "audiodev"
audio: remove QEMU_AUDIO_* and -audio-help support
audio: simplify flow in audio_init
audio: commonize voice initialization
audio: return Error ** from audio_state_by_name
audio: allow returning an error from the driver init
audio: Require AudioState in AUD_add_capture
ui/vnc: Require audiodev= to enable audio
crypto: only include tls-cipher-suites in emulators
scsi-disk: ensure that FORMAT UNIT commands are terminated
esp: restrict non-DMA transfer length to that of available data
esp: use correct type for esp_dma_enable() in sysbus_esp_gpio_demux()
Makefile: build plugins before running TCG tests
meson: clean up static_library keyword arguments
make-release: do not ship dtc sources
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
A new enough libfdt is included in all of Debian 11, Ubuntu 20.04
and MSYS2. It has also been included for several minor releases
in Fedora and openSUSE Leap, as well as in CentOS. Therefore
there is no need anymore to ship the sources together with the QEMU
tarballs.
Keep the wrap file so that it can be used with --enable-download,
but do not ship the sources anymore with either archive-source.sh
or make-release.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Python 3 removed `dict.iteritems()` in favor of `dict.items()`. This
means the script currently doesn't work on Python 3.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-15-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
By moving the dynamic argument construction to keyword-arguments,
we can remove all of the specialized handling, and streamline it.
If a tracing method wants to access these, they can define the
kwargs, or ignore it be placing `**kwargs` at the end of the
function's arguments list.
Added deprecation warning to Analyzer class to make users aware
of the Analyzer2 class. No removal date is planned.
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-13-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Moved event processing to the Analyzer class to separate specific analyzer
logic (like caching and function signatures) from the _process function.
This allows for new types of Analyzer-based subclasses without changing
the core code.
Note, that the fn_cache is important for performance in cases where the
analyzer is branching away from the catch-all a lot. The cache has no
measurable performance penalty.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-12-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
To avoid duplicate code depending on input types and to better handle
open/close of log with a context-manager, we move the logic of process into
_process.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-11-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Moved event_mapping and event_id_to_name down one level in the function
call-stack to keep variable instantiation and usage closer (`process`
and `run` has no use of the variables; `read_trace_records` does).
Instead of passing event_mapping and event_id_to_name to the bottom of
the call-stack, we move their use to `read_trace_records`. This
separates responsibility and ownership of the information.
`read_record` now just reads the arguments from the file-object by
knowning the total number of bytes. Parsing it to specific arguments is
moved up to `read_trace_records`.
Special handling of dropped events removed, as they can be handled
by the general code.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-10-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Instead of explicitly calling `begin` and `end`, we can change the class
to use the context-manager paradigm. This is mostly a styling choice,
used in modern Python code. But it also allows for more advanced analyzers
to handle exceptions gracefully in the `__exit__` method (not
demonstrated here).
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-9-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Define `SimpleException` to differentiate our exceptions from generic
exceptions (IOError, etc.). Adapted simpletrace to support this and
output to stderr.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-8-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
A failed call to `read_header` wouldn't be handled the same for the two
different code paths (one path would try to use `None` as a list).
Changed to raise exception to be handled centrally. This also allows for
easier unpacking, as errors has been filtered out.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-7-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The call to `getargspec` was deprecated and in Python 3.11 it has been
removed in favor of `getfullargspec`. `getfullargspec` is compatible
with QEMU's requirement of at least Python version 3.6.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-6-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Readability is subjective, but I've expanded the naming of the variables
and arguments, to help with understanding for new eyes on the code.
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20230926103436.25700-5-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The arguments extracted from `sys.argv` named and unpacked to make it
clear what the arguments are and what they're used for.
The two input files were opened, but never explicitly closed. File usage
changed to use `with` statement to take care of this. At the same time,
ownership of the file-object is moved up to `run` function. Added option
to process to support file-like objects.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-4-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
It wasn't clear where the constants and structs came from, so I added
comments to help.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-3-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
