Some distros prefer to avoid vendored crate sources, and instead use
local sources from e.g. ``/usr/share/cargo/registry``. Add a
script, inspired by the Mesa spec file(*), that automatically
performs this task. The script is meant to be invoked after unpacking
the QEMU tarball.
(*) This is the hack that Mesa uses:
export MESON_PACKAGE_CACHE_DIR="%{cargo_registry}/"
%define inst_crate_nameversion() %(basename %{cargo_registry}/%{1}-*)
%define rewrite_wrap_file() sed -e "/source.*/d" -e "s/%{1}-.*/%{inst_crate_nameversion %{1}}/" -i subprojects/%{1}.wrap
%rewrite_wrap_file proc-macro2
... more %rewrite_wrap_file invocations follow ...
Reviewed-by: Neal Gompa <ngompa@fedoraproject.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is still worth having in QEMU 10.1 for the all-round improvements
made (consistent timestamping, binary size reduction, header pollution cleanup)
even if it's debatable whether this is a bug fix.
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Merge tag 'tracing-pull-request' of https://gitlab.com/stefanha/qemu into staging
Pull request
This commit is still worth having in QEMU 10.1 for the all-round improvements
made (consistent timestamping, binary size reduction, header pollution cleanup)
even if it's debatable whether this is a bug fix.
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# gpg: Signature made Thu 24 Jul 2025 10:46:29 EDT
# gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [ultimate]
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [ultimate]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* tag 'tracing-pull-request' of https://gitlab.com/stefanha/qemu:
log: make '-msg timestamp=on' apply to all qemu_log usage
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Failure to confirm an argument set first may result in
the selection of a format which leaves extra arguments
to be filled in by the pattern.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250723165458.3509150-4-peter.maydell@linaro.org
Message-id: 20250722183343.273533-1-richard.henderson@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Currently the tracing 'log' back emits special code to add timestamps
to trace points sent via qemu_log(). This current impl is a bad design
for a number of reasons.
* It changes the QEMU headers, such that 'error-report.h' content
is visible to all files using tracing, but only when the 'log'
backend is enabled. This has led to build failure bugs as devs
rarely test without the (default) 'log' backend enabled, and
CI can't cover every scenario for every trace backend.
* It bloats the trace points definitions which are inlined into
every probe location due to repeated inlining of timestamp
formatting code, adding MBs of overhead to QEMU.
* The tracing subsystem should not be treated any differently
from other users of qemu_log. They all would benefit from
having timestamps present.
* The timestamp emitted with the tracepoints is in a needlessly
different format to that used by error_report() in response
to '-msg timestamp=on'.
This fixes all these issues simply by moving timestamp formatting
into qemu_log, using the same approach as for error_report.
The code before:
static inline void _nocheck__trace_qcrypto_tls_creds_get_path(void * creds, const char * filename, const char * path)
{
if (trace_event_get_state(TRACE_QCRYPTO_TLS_CREDS_GET_PATH) && qemu_loglevel_mask(LOG_TRACE)) {
if (message_with_timestamp) {
struct timeval _now;
gettimeofday(&_now, NULL);
qemu_log("%d@%zu.%06zu:qcrypto_tls_creds_get_path " "TLS creds path creds=%p filename=%s path=%s" "\n",
qemu_get_thread_id(),
(size_t)_now.tv_sec, (size_t)_now.tv_usec
, creds, filename, path);
} else {
qemu_log("qcrypto_tls_creds_get_path " "TLS creds path creds=%p filename=%s path=%s" "\n", creds, filename, path);
}
}
}
and after:
static inline void _nocheck__trace_qcrypto_tls_creds_get_path(void * creds, const char * filename, const char * path)
{
if (trace_event_get_state(TRACE_QCRYPTO_TLS_CREDS_GET_PATH) && qemu_loglevel_mask(LOG_TRACE)) {
qemu_log("qcrypto_tls_creds_get_path " "TLS creds path creds=%p filename=%s path=%s" "\n", creds, filename, path);
}
}
The log and error messages before:
$ qemu-system-x86_64 -trace qcrypto* -object tls-creds-x509,id=tls0,dir=$HOME/tls -msg timestamp=on
2986097@1753122905.917608:qcrypto_tls_creds_x509_load TLS creds x509 load creds=0x55d925bd9490 dir=/var/home/berrange/tls
2986097@1753122905.917621:qcrypto_tls_creds_get_path TLS creds path creds=0x55d925bd9490 filename=ca-cert.pem path=<none>
2025-07-21T18:35:05.917626Z qemu-system-x86_64: Unable to access credentials /var/home/berrange/tls/ca-cert.pem: No such file or directory
and after:
$ qemu-system-x86_64 -trace qcrypto* -object tls-creds-x509,id=tls0,dir=$HOME/tls -msg timestamp=on
2025-07-21T18:43:28.089797Z qcrypto_tls_creds_x509_load TLS creds x509 load creds=0x55bf5bf12380 dir=/var/home/berrange/tls
2025-07-21T18:43:28.089815Z qcrypto_tls_creds_get_path TLS creds path creds=0x55bf5bf12380 filename=ca-cert.pem path=<none>
2025-07-21T18:43:28.089819Z qemu-system-x86_64: Unable to access credentials /var/home/berrange/tls/ca-cert.pem: No such file or directory
The binary size before:
$ ls -alh qemu-system-x86_64
-rwxr-xr-x. 1 berrange berrange 87M Jul 21 19:39 qemu-system-x86_64
$ strip qemu-system-x86_64
$ ls -alh qemu-system-x86_64
-rwxr-xr-x. 1 berrange berrange 30M Jul 21 19:39 qemu-system-x86_64
and after:
$ ls -alh qemu-system-x86_64
-rwxr-xr-x. 1 berrange berrange 85M Jul 21 19:41 qemu-system-x86_64
$ strip qemu-system-x86_64
$ ls -alh qemu-system-x86_64
-rwxr-xr-x. 1 berrange berrange 29M Jul 21 19:41 qemu-system-x86_64
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-id: 20250721185452.3016488-1-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
When TLS 1.3 is negotiated on a TLS session, GNUTLS will perform
automatic rekeying of the session after 16 million records. This
is done for all algorithms except CHACHA20_POLY1305 which does
not require rekeying.
Unfortunately the rekeying breaks GNUTLS' promise that it is safe
to use a gnutls_session_t object concurrently from multiple threads
if they are exclusively calling gnutls_record_send/recv.
This patch implements a workaround for QEMU that adds a mutex lock
around any gnutls_record_send/recv call to serialize execution
within GNUTLS code. When GNUTLS calls into the push/pull functions
we can release the lock so the OS level I/O calls can at least
have some parallelism.
The big downside of this is that the actual encryption/decryption
code is fully serialized, which will halve performance of that
cipher operations if two threads are contending.
The workaround is not enabled by default, since most use of GNUTLS
in QEMU does not tickle the problem, only non-multifd migration
with a return path open is affected. Fortunately the migration
code also won't trigger the halving of performance, since only
the outbound channel diretion needs to sustain high data rates,
the inbound direction is low volume.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/qemu-devel/20250718150514.2635338-2-berrange@redhat.com
[add stub for qcrypto_tls_session_require_thread_safety; fix unused var]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
The vcpu property is no longer used in these backends. Removing it avoids
unnecessary checks and simplifies the code generation for these trace
backends.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Tanish Desai <tanishdesai37@gmail.com>
Message-id: 20250722114352.3624-1-tanishdesai37@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
KVM support for 32-bit arm has been dropped a while ago, so we don't
need these headers in QEMU anymore.
Fixes: 82bf7ae84c ("target/arm: Remove KVM support for 32-bit Arm hosts")
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250710120035.169376-1-thuth@redhat.com>
Commit 84fe49d94a ("meson: Add optional dependency on IGVM library")
was inconsistent with the contents of meson_options.txt and the one
generated in scripts/meson-buildoptions.sh
Let's regenerate the file in this way to keep them consistent and prevent
future changes from including the spurious diff:
touch meson_options.txt
make update-buildoptions
Fixes: 84fe49d94a ("meson: Add optional dependency on IGVM library")
Cc: roy.hopkins@randomman.co.uk
Reported-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20250717131256.157383-1-sgarzare@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust: qemu-api-macros: cleanup and add unit tests for TryInto
* rust: log: implement io::Write, avoid memory allocations
when logging constant strings
* target/i386: fix usage of properties whenever accelerators
change the default (e.g. vendor)
* target/i386: add support for TDVMCALL_SETUP_EVENT_NOTIFY_INTERRUPT
* target/i386: add support for booting an SEV VM from an IGVM file
* target/i386: unify cache model descriptions between CPUID 2,
CPUID 4 and AMD specific CPUID 0x80000006
* target/i386: introduce cache models for recent Intel CPU models
* target/i386: mark some 0x80000000-0x80000008 bits as reserved on Intel
* target/i386: cleanups
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* rust: miscellaneous fixes
* rust: qemu-api-macros: cleanup and add unit tests for TryInto
* rust: log: implement io::Write, avoid memory allocations
when logging constant strings
* target/i386: fix usage of properties whenever accelerators
change the default (e.g. vendor)
* target/i386: add support for TDVMCALL_SETUP_EVENT_NOTIFY_INTERRUPT
* target/i386: add support for booting an SEV VM from an IGVM file
* target/i386: unify cache model descriptions between CPUID 2,
CPUID 4 and AMD specific CPUID 0x80000006
* target/i386: introduce cache models for recent Intel CPU models
* target/i386: mark some 0x80000000-0x80000008 bits as reserved on Intel
* target/i386: cleanups
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# gpg: Signature made Mon 14 Jul 2025 04:29:31 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: (77 commits)
i386/cpu: Honor maximum value for CPUID.8000001DH.EAX[25:14]
i386/cpu: Fix overflow of cache topology fields in CPUID.04H
i386/cpu: Fix cpu number overflow in CPUID.01H.EBX[23:16]
i386/cpu: Fix number of addressable IDs field for CPUID.01H.EBX[23:16]
i386/cpu: Reorder CPUID leaves in cpu_x86_cpuid()
tests/vm: bump FreeBSD image to 14.3
tests/functional: test_x86_cpu_model_versions: remove dead tests
i386/cpu: Mark CPUID 0x80000008 ECX bits[0:7] & [12:15] as reserved for Intel/Zhaoxin
i386/cpu: Mark CPUID 0x80000007[EBX] as reserved for Intel
i386/cpu: Mark EBX/ECX/EDX in CPUID 0x80000000 leaf as reserved for Intel
i386/cpu: Enable 0x1f leaf for YongFeng by default
i386/cpu: Enable 0x1f leaf for SapphireRapids by default
i386/cpu: Enable 0x1f leaf for GraniteRapids by default
i386/cpu: Enable 0x1f leaf for SierraForest by default
i386/cpu: Enable 0x1f leaf for SierraForest by default
i386/cpu: Add a "x-force-cpuid-0x1f" property
i386/cpu: Introduce cache model for YongFeng
i386/cpu: Introduce cache model for SapphireRapids
i386/cpu: Introduce cache model for GraniteRapids
i386/cpu: Introduce cache model for SierraForest
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Generated command documentation lacks information on return value in
several cases, e.g. query-tpm.
The obvious fix would be to require a Returns: section when a command
returns something.
However, note that many existing Returns: sections are pretty useless:
the description is basically the return type, which then gets rendered
like "Return: <Type> – <basically the return type>". This suggests
that a description is often not really necessary, and requiring one
isn't useful.
Instead, generate the obvious minimal thing when Returns: is absent:
"Return: <Type>".
This auto-generated Return documentation is placed is as follows:
1. If we have arguments, return goes right after them.
2. Else if we have errors, return goes right before them.
3. Else if we have features, return goes right before them.
4. Else return goes right after the intro
To facilitate this algorithm, a "TODO:" hack line is used to separate
the intro from the remainder of the documentation block in cases where
there are no other sections to separate the intro from e.g. examples and
additional detail meant to appear below the key sections of interest.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20250711051045.51110-3-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[_insert_near_kind() code replaced by something simpler, commit
message amended to explain why we're doing this]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
We reject lines starting with '=' in definition documentation. This
made sense when such lines were headings in free-form documentation,
but not in definition documentation.
Before the previous commit, lines starting with '=' were headings in
free-form documentation, and rejected in definition documentation,
where such headings could not work.
The previous commit dropped the headings feature from free-form
documentation, because we can simply use plain rST headings.
Rejecting them in definition documentation no longer makes sense, so
drop that, too.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20250618165353.1980365-6-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Amend commit message to explain why]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Remove the QAPI doc section heading syntax, use plain rST section
headings instead.
Tests and documentation are updated to match.
Interestingly, Plain rST headings work fine before this patch, except
for over- and underlining with '=', which the doc parser rejected as
invalid QAPI doc section heading in free-form comments.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20250618165353.1980365-5-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Add more detail to commit message]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit introduces support for passt as a new network backend.
passt is an unprivileged, user-mode networking solution that provides
connectivity for virtual machines by launching an external helper process.
The implementation reuses the generic stream data handling logic. It
launches the passt binary using GSubprocess, passing it a file
descriptor from a socketpair() for communication. QEMU connects to
the other end of the socket pair to establish the network data stream.
The PID of the passt daemon is tracked via a temporary file to
ensure it is terminated when QEMU exits.
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
The IGVM library allows Independent Guest Virtual Machine files to be
parsed and processed. IGVM files are used to configure guest memory
layout, initial processor state and other configuration pertaining to
secure virtual machines.
This adds the --enable-igvm configure option, enabled by default, which
attempts to locate and link against the IGVM library via pkgconfig and
sets CONFIG_IGVM if found.
The library is added to the system_ss target in backends/meson.build
where the IGVM parsing will be performed by the ConfidentialGuestSupport
object.
Signed-off-by: Roy Hopkins <roy.hopkins@randomman.co.uk>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Gerd Hoffman <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Ani Sinha <anisinha@redhat.com>
Link: https://lore.kernel.org/r/45945a83a638c3f08e68c025f378e7b7f4f6d593.1751554099.git.roy.hopkins@randomman.co.uk
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The GPLv2 boiler-plate in scripts/device-crash-test still
contained the obsolete "51 Franklin Street" postal address.
Replace it with the canonical GNU licenses URL recommended by the FSF:
https://www.gnu.org/licenses/
Signed-off-by: Sean Wei <me@sean.taipei>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250613.qemu.patch.09@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The build fails on Windows. Replace calls to Unix programs like ´cat´,
´sed´ and ´true´ with calls to ´python´ and wrap calls to
´os.path.relpath´ in try-except because it can fail when the two paths
are on different drives. Make sure to convert the Windows paths to Unix
paths to prevent warnings in generated files.
Signed-off-by: oltolm <oleg.tolmatcev@gmail.com>
Message-id: 20250612221521.1109-2-oleg.tolmatcev@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
When changing meson_options.txt, this script gets updated automatically
by QEMU tooling which sorts the choices lexicographically.
Fixes: ccc403ed58 ("meson: Add wasm build in build scripts")
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-ID: <20250610204131.2862-4-shentey@gmail.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
* qemu-thread: Avoid futex abstraction for non-Linux
* migration, hw/display/apple-gfx: replace QemuSemaphore with QemuEvent
* rust: bindings for Error
* hpet, rust/hpet: return errors from realize if properties are incorrect
* rust/hpet: Drop BqlCell wrapper for num_timers
* target/i386: Emulate ftz and denormal flag bits correctly
* i386/kvm: Prefault memory on page state change
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* futex: support Windows
* qemu-thread: Avoid futex abstraction for non-Linux
* migration, hw/display/apple-gfx: replace QemuSemaphore with QemuEvent
* rust: bindings for Error
* hpet, rust/hpet: return errors from realize if properties are incorrect
* rust/hpet: Drop BqlCell wrapper for num_timers
* target/i386: Emulate ftz and denormal flag bits correctly
* i386/kvm: Prefault memory on page state change
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# 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: (31 commits)
tests/tcg/x86_64/fma: add test for exact-denormal output
target/i386: Wire up MXCSR.DE and FPUS.DE correctly
target/i386: Use correct type for get_float_exception_flags() values
target/i386: Detect flush-to-zero after rounding
hw/display/apple-gfx: Replace QemuSemaphore with QemuEvent
migration/postcopy: Replace QemuSemaphore with QemuEvent
migration/colo: Replace QemuSemaphore with QemuEvent
migration: Replace QemuSemaphore with QemuEvent
qemu-thread: Document QemuEvent
qemu-thread: Use futex if available for QemuLockCnt
qemu-thread: Use futex for QemuEvent on Windows
qemu-thread: Avoid futex abstraction for non-Linux
qemu-thread: Replace __linux__ with CONFIG_LINUX
futex: Support Windows
futex: Check value after qemu_futex_wait()
i386/kvm: Prefault memory on page state change
rust: make TryFrom macro more resilient
docs: update Rust module status
rust/hpet: Drop BqlCell wrapper for num_timers
rust/hpet: return errors from realize if properties are incorrect
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This is a standard replacement for Box<dyn Error> which is more efficient (it only
occcupies one word) and provides a backtrace of the error. This could be plumbed
into &error_abort in the future.
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since the previous commit, python/setup.cfg applies to scripts/qapi/ as
well. Configuration files in scripts/qapi/ override python/setup.cfg.
scripts/qapi/.flake8 and scripts/qapi/.isort.cfg actually match
python/setup.cfg exactly, and can go.
The differences between scripts/qapi/mypy.ini and python/setup.cfg are
harmless: namespace_packages being set to True is a requirement for the
PEP420 nested package structure of QEMU but not for scripts/qapi, but
has no effect on type checking the QAPI code. warn_unused_ignores is
used in python/ to be able to target a wide variety of mypy versions;
some of which that have added new ignore categories that are not present
in older versions.
Ultimately, scripts/qapi/mypy.ini can be removed without any real change
in behavior to how mypy enforces type safety there.
The pylint config is being left in place because the settings differ
enough from the python/ directory settings that we need a chit-chat on
how to merge them O:-)
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20250604200354.459501-7-jsnow@redhat.com
Update the python tests to also check QAPI and the QAPI Sphinx
extensions. The docs/sphinx/qapidoc_legacy.py file is not included in
these checks, as it is destined for removal soon. mypy is also not
called on the QAPI Sphinx extensions, owing to difficulties supporting
Sphinx 3.x - 8.x while maintaining static type checking support. mypy
*is* called on all of the QAPI tools themselves, though.
flake8, isort and mypy use the tool configuration from the existing
python directory (in setup.cfg). pylint continues to use the special
configuration located in scripts/qapi/ - that configuration is more
permissive. If we wish to unify the two configurations, that's a
separate series and a discussion for a later date.
The list of pylint ignores is also updated, owing again to the wide
window of pylint version support: newer versions require pragmas to
occasionally silence the "too many positional arguments" warning, but
older versions do not have such a warning category and will instead yelp
about an unrecognized option. Silence that warning, too.
As a result of this patch, one would be able to run any of the following
tests locally from the qemu.git/python directory and have it cover the
QAPI tooling as well. All of the following options run the python tests,
static analysis tests, and linter checks; but with different
combinations of dependencies and interpreters.
- "make check-minreqs" Run tests specifically under our oldest supported
Python and our oldest supported dependencies. This is the test that
runs on GitLab as "check-python-minreqs". This helps ensure we do not
regress support on older platforms accidentally.
- "make check-tox" Runs the tests under the newest supported
dependencies, but under each supported version of Python in turn. At
time of writing, this is Python 3.8 to 3.13 inclusive. This test helps
catch bleeding-edge problems before they become problems for developer
workstations. This is the GitLab test "check-python-tox" and is an
optionally run, may-fail test due to the unpredictable nature of new
dependencies being released into the ecosystem that may cause
regressions.
- "make check-dev" Runs the tests under the newest supported
dependencies using whatever version of Python the user happens to have
installed. This is a quick convenience check that does not map to any
particular GitLab test.
(Note! check-dev may be busted on Fedora 41 and bleeding edge versions
of setuptools. That's unrelated to this patch and I'll address it
separately and soon. Thank you for your patience, --mgmt)
Finally, finally, finally: this means that QAPI tooling will be linted
and type-checked from the GitLab pipelines.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20250604200354.459501-5-jsnow@redhat.com
[Edited license choice per review --js]
Signed-off-by: John Snow <jsnow@redhat.com>
This restores the linting baseline in QAPI.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20250604200354.459501-2-jsnow@redhat.com
* rust: add "bits", a custom bitflags implementation
* target/i386: Remove FRED dependency on WRMSRNS
* target/i386: Add the immediate form MSR access instruction support
* TDX fixes
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* rust: use native Meson support for clippy and rustdoc
* rust: add "bits", a custom bitflags implementation
* target/i386: Remove FRED dependency on WRMSRNS
* target/i386: Add the immediate form MSR access instruction support
* TDX fixes
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# gpg: Signature made Tue 03 Jun 2025 16:44:43 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:
rust: qemu-api-macros: add from_bits and into_bits to #[derive(TryInto)]
rust: pl011: use the bits macro
rust: add "bits", a custom bitflags implementation
i386/tdvf: Fix build on 32-bit host
i386/tdx: Fix build on 32-bit host
meson: use config_base_arch for target libraries
target/i386: Add the immediate form MSR access instruction support
target/i386: Add a new CPU feature word for CPUID.7.1.ECX
target/i386: Remove FRED dependency on WRMSRNS
rust: use native Meson support for clippy and rustdoc
rust: cell: remove support for running doctests with "cargo test --doc"
rust: add qemu-api doctests to "meson test"
build, dockerfiles: add support for detecting rustdoc
rust: use "objects" for Rust executables as well
meson: update to version 1.8.1
rust: bindings: allow ptr_offset_with_cast
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Meson has support for invoking clippy and rustdoc on all crates (1.7.0 for
clippy, 1.8.0 for rustdoc). Use it instead of the homegrown version; this
requires disabling the multiple_crate_versions lint (the only one that was
enabled from the "cargo" group)---which was not particularly useful anyway
because all dependencies are converted by hand into Meson subprojects.
rustfmt is still not supported.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This change improves performance by moving the hot path of the trace_vhost_commit()(or any other trace function) logic to the header file.
Previously, even when the trace event was disabled, the function call chain:-
trace_vhost_commit()(Or any other trace function) → _nocheck__trace_vhost_commit() → _simple_trace_vhost_commit()
incurred a significant function prologue overhead before checking the trace state.
Disassembly of _simple_trace_vhost_commit() (from the .c file) showed that 11 out of the first 14 instructions were prologue-related, including:
0x10 stp x29, x30, [sp, #-64]! Prologue: allocates 64-byte frame and saves old FP (x29) & LR (x30)
0x14 adrp x3, trace_events_enabled_count Prologue: computes page-base of the trace-enable counter
0x18 adrp x2, __stack_chk_guard Important (maybe prolog don't know?)(stack-protector): starts up the stack-canary load
0x1c mov x29, sp Prologue: sets new frame pointer
0x20 ldr x3, [x3] Prologue: loads the actual trace-enabled count
0x24 stp x19, x20, [sp, #16] Prologue: spills callee-saved regs used by this function (x19, x20)
0x28 and w20, w0, #0xff Tracepoint setup: extracts the low-8 bits of arg0 as the “event boolean”
0x2c ldr x2, [x2] Prologue (cont’d): completes loading of the stack-canary value
0x30 and w19, w1, #0xff Tracepoint setup: extracts low-8 bits of arg1
0x34 ldr w0, [x3] Important: loads the current trace-enabled flag from memory
0x38 ldr x1, [x2] Prologue (cont’d): reads the canary
0x3c str x1, [sp, #56] Prologue (cont’d): writes the canary into the new frame
0x40 mov x1, #0 Prologue (cont’d): zeroes out x1 for the upcoming branch test
0x44 cbnz w0, 0x88 Important: if tracing is disabled (w0==0) skip the heavy path entirely
The trace-enabled check happens after the prologue. This is wasteful when tracing is disabled, which is often the case in production.
To optimize this:
_nocheck__trace_vhost_commit() is now fully inlined in the .h file with
the hot path.It checks trace_event_get_state() before calling into _simple_trace_vhost_commit(), which remains in .c.
This avoids calling into the .c function altogether when the tracepoint is disabled, thereby skipping unnecessary prologue instructions.
This results in better performance by removing redundant instructions in the tracing fast path.
Signed-off-by: Tanish Desai <tanishdesai37@gmail.com>
Message-id: 20250528192528.3968-1-tanishdesai37@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* Fix VNC tight encoding with 8/16-bpp formats with
mixed endian server/client
* Fix VNC non-tight encoding with mixed endian server/client
* Drop built-in AES impl from non-TCG usage, requiring
nettle/gcrypt/gnutls
* Fix validation of SPDX-License-Identifier in new files
* Mandate SPDX-License-Identifier in Rust source
* Reject license boilerplate in new files
* Add full control over TCP keep alive setting for sockets
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Merge tag 'misc-next-pull-request' of https://gitlab.com/berrange/qemu into staging
Misc VNC, I/O, Crypto & checkpatch changes
* Fix VNC tight encoding with 8/16-bpp formats with
mixed endian server/client
* Fix VNC non-tight encoding with mixed endian server/client
* Drop built-in AES impl from non-TCG usage, requiring
nettle/gcrypt/gnutls
* Fix validation of SPDX-License-Identifier in new files
* Mandate SPDX-License-Identifier in Rust source
* Reject license boilerplate in new files
* Add full control over TCP keep alive setting for sockets
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# gpg: Signature made Thu 22 May 2025 06:28:24 EDT
# gpg: using RSA key DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [full]
# gpg: aka "Daniel P. Berrange <berrange@redhat.com>" [full]
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E 8E3F BE86 EBB4 1510 4FDF
* tag 'misc-next-pull-request' of https://gitlab.com/berrange/qemu: (23 commits)
scripts/checkpatch.pl: mandate SPDX tag for Rust src files
util/qemu-sockets: Introduce inet socket options controlling TCP keep-alive
util/qemu-sockets: Refactor inet_parse() to use QemuOpts
util/qemu-sockets: Add support for keep-alive flag to passive sockets
util/qemu-sockets: Refactor success and failure paths in inet_listen_saddr()
util/qemu-sockets: Refactor setting client sockopts into a separate function
io: Fix partial struct copy in qio_dns_resolver_lookup_sync_inet()
scripts/checkpatch: reject license boilerplate on new files
scripts/checkpatch: reimplement mandate for SPDX-License-Identifier
scripts/checkpatch: use new hook for MAINTAINERS update check
scripts/checkpatch: expand pattern for matching makefiles
scripts/checkpatch: use new hook for file permissions check
scripts/checkpatch: use new hook for ACPI test data check
scripts/checkpatch: introduce tracking of file start/end
scripts/checkpatch.pl: fix various indentation mistakes
Revert "scripts: mandate that new files have SPDX-License-Identifier"
crypto: fully drop built-in cipher provider
tests: fix skipping cipher tests when AES is not available
tests: skip legacy qcow2 encryption test if AES is not available
tests: skip encrypted secret tests if AES is not available
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The previous commit mandates use of SPDX-License-Identifier on common
source files, and encourages it on all other files.
Some contributors are none the less still also including the license
boilerplate text. This is redundant and will potentially cause
trouble if inconsistent with the SPDX declaration.
Match common boilerplate text blurbs and report them as invalid,
for newly added files.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Going forward we want all newly created source files to have an
SPDX-License-Identifier tag present.
Initially mandate this for C, Python, Perl, Shell source files,
as well as JSON (QAPI) and Makefiles, while encouraging users
to consider it for other file types.
The new attempt at detecting missing SPDX-License-Identifier relies
on the hooks for relying triggering logic at the end of scanning a
new file in the diff.
Tested-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When seeing a new/deleted/renamed file we check to see if MAINTAINERS
is updated, but we don't give the user a list of files affected, as
we don't want to repeat the same warning many times over.
Using the new file list hook, we can give a single warning at the
end with a list of filenames included.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The current regex matches Makefile & Makefile.objs, but the latter is
no longer used, anjd we're missing coverage of Makefile.include and
Makefile.target. Expand the pattern to match any suffix.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The file permissions check is the kind of check intended to be performed
in the new start of file hook.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The ACPI test data check needs to analyse a list of all files in a
commit, so can use the new hook for processing the file list.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Some checks want to be performed either at the start of a new file
within a patch, or at the end. This is complicated by the fact that
the information relevant to the check may be spread across multiple
lines. It is further complicated by a need to support both git and
non-git diffs, and special handling for renames where there might
not be any patch hunks.
To handle this more sanely, introduce explicit tracking of file
start/end, taking account of git metadata, and calling a hook
function at each transition.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Various checks in the code were under-indented relative to other
surrounding code. Some places used 4-space indents instead of
single tab, while other places simply used too few tabs.
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit fa4d79c64d.
The logic in this commit was flawed in two critical ways
* It always failed to report SPDX validation on the last newly
added file. IOW, it only worked if at least 2 new files were
added in a commit
* If an existing file change, followed a new file change, in
the commit and the existing file context/changed lines
included SPDX-License-Identifier, it would incorrectly
associate this with the previous newly added file.
Simply reverting this commit will make it significantly easier to
understand the improved logic in the following commit.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The old "num_timers" got a rename. See commit 1433e38cc8 ("hpet: do not
overwrite properties on post_load") for more details. Teach the script to
accept the new name.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/r/20250501151235.636709-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Since modinfo support was added, Meson fixed several issues with
extract_objects and compile_commands.json lookups can be simplified.
If the lookup uses the object file as key, there is no need to use the
command line to distinguish among all entries for a given source.
Ninja 1.9 is required in order to produce the 'output' key in
compile_commands.json; it is available in CentOS Stream 9, Debian 11, SLES
15.2, Ubuntu 20.04 and in all recent BSD distros. Samurai also has it.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Just detect compiler support and always enable the optimizations if
it is avilable; warn if the user did request AVX2/AVX512 use via
-Dx86_version= but the intrinsics are not available.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Kernel commit 8a141be3233a changed from using
ASSEMBLY to ASSEMBLER
Updated the update-linux-header script to match
Signed-off-by: Rorie Reyes <rreyes@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250425052401.8287-2-rreyes@linux.ibm.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
has_int128_type is set to false on emscripten as of now to avoid errors by
libffi. Tests are disabled on emscripten because they rely on host
features that aren't supported by emscripten (e.g. fork and unix
socket).
Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com>
Link: https://lore.kernel.org/r/ad03b3b180335f59e785e930968077bf15c46260.1745820062.git.ktokunaga.mail@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
On Debian, the rustc-web package provides a newer Rust compiler (1.78)
for all architectures except mips64el.
On Ubuntu, Rust versions up to 1.80 (?) are available as of this writing
for both Jammy (22.04) and Noble (24.04). However, the path to rustc
and rustdoc must be provided by hand to the configure script using
either command line arguments or environment variables.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
ghes_addr_le has been renamed to hw_error_le in commit 652f6d86cb
("acpi/ghes: better name the offset of the hardware error firmware").
Adjust the checker script to allow that changed field name.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20250429152141.294380-3-thuth@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
This qtest requires there is a RDMA(RoCE) link in the host.
In order to make the test work smoothly, introduce a
scripts/rdma-migration-helper.sh to detect existing RoCE link before
running the test.
Test will be skipped if there is no available RoCE link.
# Start of rdma tests
# Running /x86_64/migration/precopy/rdma/plain
ok 1 /x86_64/migration/precopy/rdma/plain # SKIP No rdma link available
# To enable the test:
# Run 'scripts/rdma-migration-helper.sh setup' with root to setup a new rdma/rxe link and rerun the test
# Optional: run 'scripts/rdma-migration-helper.sh clean' to revert the 'setup'
# End of rdma tests
Cc: Philippe Mathieu-Daudé <philmd@linaro.org>
Cc: Stefan Hajnoczi <stefanha@gmail.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Message-ID: <20250311024221.363421-1-lizhijian@fujitsu.com>
[add 'head -1' to script, reformat test message]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
