Using phrasing from https://openinfra.org/legal/ai-policy (with just
"commit" replaced by "submission", because we do not submit changes
as commits but rather emails), clarify that the contributor remains
responsible for its copyright or license status.
[This is not my preferred phrasing. I would prefer something lighter
like "the "Signed-off-by" label in the contribution gives the author
responsibility". But for the sake of not reinventing the wheel I am
keeping the exact words from the OpenInfra policy.]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
QEMU's AI generated content policy does not flesh out the exception
process yet. Do it, while at the same time keeping things informal: ask
contributors to explain what they would like to use AI for, and let them
reach a consensus with the project on why it is credible to claim DCO
compliance in that specific scenario.
In other words, exceptions do not "solve the AI copyright problem". They
take a position that a reasonable contributor could have, and assert that
we're comfortable with the argument.
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The AI policy in QEMU is not about content generators, it is about generated
content. Other uses are explicitly not covered. Rename the policy and clarify
its scope in the TL;DR section, as a matter of convenience to the reader.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Children are automatically unparented so manually unparenting is
unnecessary.
Worse, automatic unparenting happens before the instance_finalize()
callback of the parent gets called, so object_unparent() calls in
the callback will refer to objects that are already unparented, which
is semantically incorrect.
Remove the instruction to call object_unparent(), and the exception
of the "do not call object_unparent()" rule for instance_finalize().
Signed-off-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Link: https://lore.kernel.org/r/20250924-use-v4-1-07c6c598f53d@rsg.ci.i.u-tokyo.ac.jp
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The version in the system might be too old for QEMU; this will be
especially true if Rust is going to be enabled by default.
Adjust the docs to suggest using pyvenv/bin/meson, which is in fact
what the "make" wrappers will be running internally.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* cpu-exec: more cleanups to CPU loop exits
* python: bump bundled Meson to 1.9.0
* rust: require Rust 1.83.0
* rust: temporarily remove from Ubuntu CI
* rust: vmstate: convert to use builder pattern
* rust: split "qemu-api" crate
* rust: rename qemu_api_macros -> qemu_macros
* rust: re-export qemu macros from other crates
* x86: fix functional test failure for Xen emulation
* x86: cleanups
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# gpg: Signature made Wed 17 Sep 2025 10:02:19 AM PDT
# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [unknown]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (60 commits)
accel/kvm: Set guest_memfd_offset to non-zero value only when guest_memfd is valid
accel/kvm: Zero out mem explicitly in kvm_set_user_memory_region()
accel/kvm: Switch to check KVM_CAP_GUEST_MEMFD and KVM_CAP_USER_MEMORY2 on VM
i386/kvm: Drop KVM_CAP_X86_SMM check in kvm_arch_init()
multiboot: Fix the split lock
target/i386: Define enum X86ASIdx for x86's address spaces
i386/cpu: Enable SMM cpu address space under KVM
hpet: guard IRQ handling with BQL
rust: do not inline do_init_io
rust: meson: remove unnecessary complication in device crates
docs: update rust.rst
rust: re-export qemu macros from common/qom/hwcore
rust: re-export qemu_macros internal helper in "bits"
rust: repurpose qemu_api -> tests
rust/pl011: drop dependency on qemu_api
rust/hpet: drop now unneeded qemu_api dep
rust: rename qemu_api_macros -> qemu_macros
rust: split "hwcore" crate
rust: split "system" crate
rust: split "chardev" crate
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
target-arm queue:
* tests, scripts: Don't import print_function from __future__
* Implement FEAT_ATS1A
* Remove deprecated pxa CPU family
* arm/kvm: report registers we failed to set
* Expose SME registers to GDB via gdbstub
* linux-user/aarch64: Generate ESR signal records
* hw/arm/raspi4b: remove redundant check in raspi_add_memory_node
* hw/arm/virt: Allow user-creatable SMMUv3 dev instantiation
* system: drop the -old-param option
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# gpg: Signature made Tue 16 Sep 2025 11:05:19 AM PDT
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [unknown]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [unknown]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [unknown]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* tag 'pull-target-arm-20250916' of https://gitlab.com/pm215/qemu: (36 commits)
hw/usb/network: Remove hardcoded 0x40 prefix in STRING_ETHADDR response
qtest/bios-tables-test: Update tables for smmuv3 tests
qtest/bios-tables-test: Add tests for legacy smmuv3 and smmuv3 device
bios-tables-test: Allow for smmuv3 test data.
qemu-options.hx: Document the arm-smmuv3 device
hw/arm/virt: Allow user-creatable SMMUv3 dev instantiation
hw/pci: Introduce pci_setup_iommu_per_bus() for per-bus IOMMU ops retrieval
hw/arm/virt: Add an SMMU_IO_LEN macro
hw/arm/virt: Factor out common SMMUV3 dt bindings code
hw/arm/virt-acpi-build: Update IORT for multiple smmuv3 devices
hw/arm/virt-acpi-build: Re-arrange SMMUv3 IORT build
hw/arm/smmu-common: Check SMMU has PCIe Root Complex association
target/arm: Added test case for SME register exposure to GDB
target/arm: Added support for SME register exposure to GDB
target/arm: Increase MAX_PACKET_LENGTH for SME ZA remote gdb debugging
arm/kvm: report registers we failed to set
system: drop the -old-param option
target/arm: Drop ARM_FEATURE_IWMMXT handling
target/arm: Drop ARM_FEATURE_XSCALE handling
target/arm: Remove iwmmxt helper functions
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The VMStateDescriptionBuilder already needs const_refs_static, so
use it to remove the need for vmstate_clock! and vmstate_struct!,
as well as to simplify the implementation for scalars.
If the consts in the VMState trait can reference to static
VMStateDescription, scalars do not need the info_enum_to_ref!
indirection and structs can implement the VMState trait themselves.
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250908105005.2119297-9-pbonzini@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Similar to MemoryRegionOps, the builder pattern has two advantages:
1) it makes it possible to build a VMStateDescription that knows which
types it will be invoked on; 2) it provides a way to wrap the callbacks
and let devices avoid "unsafe".
Unfortunately, building a static VMStateDescription requires the
builder methods to be "const", and because the VMStateFields are
*also* static, this requires const_refs_static. So this requires
Rust 1.83.0.
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250908105005.2119297-8-pbonzini@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Round-robin TCG is calling into cpu_exit() directly. In preparation
for making cpu_exit() usable from all accelerators, define a generic
thread-kick function for TCG which is used directly in the multi-threaded
case, and through CPU_FOREACH in the round-robin case.
Use it also for user-mode emulation, and take the occasion to move
the implementation to accel/tcg/user-exec.c.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pull request
Daniel's updated tracetool test suite that doesn't break Windows CI.
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# gpg: Signature made Tue 16 Sep 2025 10:50:32 AM PDT
# gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [unknown]
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [unknown]
# 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: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* tag 'tracing-pull-request' of https://gitlab.com/stefanha/qemu:
tracetool-test: allow to run in parallel
qapi: switch to use QEMU_TEST_REGENERATE env var
tracetool: drop the probe "__nocheck__" wrapping
tracetool: add test suite for tracetool with reference output
tracetool: include SPDX-License-Identifier in generated files
tracetool: avoid space after "*" in arg types
tracetool: eliminate trailing whitespace in C format
checkpatch: cull trailing '*/' in SPDX check
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The QAPI_TEST_UPDATE env var can be set when running the QAPI
schema tests to regenerate the reference output. For consistent
naming with the tracetool test, change the env var name to
QEMU_TEST_REGENERATE.
The test is modified to provide a hint about use of the new
env var and it is also added to the developer documentation.document its usage.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20250916081638.764020-8-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
When reviewing tracetool patches it is often very unclear what the
expected output will be for the generated backends. Compounding
this is that a default build will only enable the 'log' trace
backend, so developers won't see generated code for other backends
without making a special effort. Some backends are also platform
specific, so can't be enabled in QEMU builds, even though tracetool
could generate the code.
To address this, introduce a test suite for tracetool which is
conceptually similar to the qapi-schema test. It is a simple
python program that runs tracetool and compares the actual output
to historical reference output kept in git. The test directly
emits TAP format logs for ease of integration with meson.
This can be run with
make check-tracetool
to make it easier for developers changing generated output, the
sample expected content can be auto-recreated
QEMU_TEST_REGENERATE=1 make check-tracetool
and the changes reviewed and added to the commit. This will also
assist reviewers interpreting the change.
Developers are reminded of this in the test output on failure:
$ make check-tracetool
1/6 qemu:tracetool / dtrace OK 0.14s
2/6 qemu:tracetool / ftrace FAIL 0.06s exit status 1
――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
1..2
ok 1 - ftrace.c
#
not ok 1 - ftrace.h (set QEMU_TEST_REGENERATE=1 to recreate reference output if tracetool generator was intentionally changed)
――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
3/6 qemu:tracetool / log OK 0.06s
4/6 qemu:tracetool / simple OK 0.06s
5/6 qemu:tracetool / syslog OK 0.06s
6/6 qemu:tracetool / ust OK 0.11s
Summary of Failures:
2/6 qemu:tracetool / ftrace FAIL 0.06s exit status 1
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20250916081638.764020-6-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
In 10.0 we deprecated the pxa CPU family (pxa250, pxa255, pxa260
pxa261, pxa262, pxa270-a0, pxa270-a1, pxa270, pxa270-b0, pxa270-b1,
pxa270-c0, pxa270-c5). Now we have released 10.1 we can remove them.
This commit removes only the top level CPU definitions and updates
the documentation. Removing the CPUs means that there is now a lot
of dead iwMMXt code, which we will delete in subsequent commits.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250828140422.3271703-2-peter.maydell@linaro.org
Currently, QEMU refcounts the MR by always taking it from the owner.
It's common that one object will have multiple MR objects embeded in the
object itself. All the MRs in this case share the same lifespan of the
owner object.
It's also common that in the instance_init() of an object, MR A can be a
container of MR B, C, D, by using memory_region_add_subregion*() set of
memory region APIs.
Now we have a circular reference issue, as when adding subregions for MR A,
we essentially incremented the owner's refcount within the instance_init(),
meaning the object will be self-boosted and its refcount can never go down
to zero if the MRs won't get detached properly before object's finalize().
Delete subregions within object's finalize() won't work either, because
finalize() will be invoked only if the refcount goes to zero first. What
is worse, object_finalize() will do object_property_del_all() first before
object_deinit(). Since embeded MRs will be properties of the owner object,
it means they'll be freed _before_ the owner's finalize().
To fix that, teach memory API to stop refcount on MRs that share the same
owner. Because if they share the lifecycle of the owner, then they share
the same lifecycle between themselves, hence the refcount doesn't help but
only introduce troubles.
Meanwhile, allow auto-detachments of MRs during finalize() of MRs even
against its container, as long as they belong to the same owner.
The latter is needed because now it's possible to have MRs' finalize()
happen in any order when they share the same lifespan with a same owner.
In this case, we should allow finalize() to happen in any order of either
the parent or child MR. Loose the mr->container check in MR's finalize()
to allow auto-detach. Double check it shares the same owner.
Proper document this behavior in code.
This patch is heavily based on the work done by Akihiko Odaki:
https://lore.kernel.org/r/CAFEAcA8DV40fGsci76r4yeP1P-SP_QjNRDD2OzPxjx5wRs0GEg@mail.gmail.com
Cc: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Link: https://lore.kernel.org/r/20250826221750.285242-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
* Silence warnings from the undefined-behaviour sanitizer
* Many small improvements to various functional tests
* Remove remainders from storing avocado artifacts in the Gitlab CI
* Keep more meson log files as artifacts in the Gitlab CI instead
* Re-enable -fzero-call-used-regs on OpenBSD
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# gpg: Signature made Tue 09 Sep 2025 14:50:38 BST
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [undefined]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* tag 'pull-request-2025-09-09' of https://gitlab.com/thuth/qemu: (23 commits)
tests/functional: purge scratch dir on test startup
tests/functional: avoid tearDown failure when QEMU dies
tests/functional: avoid duplicate messages on failures
tests/functional: fix infinite loop on console EOF
tests/functional: add vm param to cmd.py helpers
tests/functional: return output from cmd.py helpers
gitlab: prevent duplicated meson log artifacts in test jobs
gitlab: include all junit XML files from meson
gitlab: always include entire of meson-logs directory
gitlab: replace avocado results files with meson results files
tests/functional/arm: Update test ASPEED SDK v09.07 for AST2700 vbootrom
tests/functional/arm: Update test ASPEED SDK v09.07 for AST2600
tests/functional/arm: Update test ASPEED SDK v09.07 for AST2500
tests/functional/arm: Update test ASPEED SDK v03.02 for AST1030
tests/functional: handle URLError when fetching assets
tests/functional: fix formatting of exception args
tests/functional: enable force refresh of cached assets
tests/functional/m68k: Avoid ResourceWarning in the nextcube test
ui/vnc: Fix crash when specifying [vnc] without id in the config file
system/physmem: Silence warning from ubsan
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Pierrick Bouvier
Paolo Bonzini
Akihiko Odaki
Richard Henderson
Marc-André Lureau
Zhao Liu
Daniel P. Berrangé
Peter Maydell
Peter Xu