Solaris defines FSCALE in <sys/param.h>:
301 /*
302 * Scale factor for scaled integers used to count
303 * %cpu time and load averages.
304 */
305 #define FSHIFT 8 /* bits to right of fixed binary point */
306 #define FSCALE (1<<FSHIFT)
When emulating the SVE FSCALE instruction, we defines the same name
in decodetree format in target/arm/tcg/sve.decode:
1129:FSCALE 01100101 .. 00 1001 100 ... ..... ..... @rdn_pg_rm
This leads to a definition clash:
In file included from ../target/arm/tcg/translate-sve.c:21:
../target/arm/tcg/translate.h:875:17: error: pasting "trans_" and "(" does not give a valid preprocessing token
875 | static bool trans_##NAME(DisasContext *s, arg_##NAME *a) \
| ^~~~~~
../target/arm/tcg/translate-sve.c:4205:5: note: in expansion of macro 'TRANS_FEAT'
4205 | TRANS_FEAT(NAME, FEAT, gen_gvec_fpst_arg_zpzz, name##_zpzz_fns[a->esz], a)
| ^~~~~~~~~~
../target/arm/tcg/translate-sve.c:4249:1: note: in expansion of macro 'DO_ZPZZ_FP'
4249 | DO_ZPZZ_FP(FSCALE, aa64_sve, sve_fscalbn)
| ^~~~~~~~~~
../target/arm/tcg/translate-sve.c:4249:12: error: expected declaration specifiers or '...' before numeric constant
4249 | DO_ZPZZ_FP(FSCALE, aa64_sve, sve_fscalbn)
| ^~~~~~
../target/arm/tcg/translate.h:875:25: note: in definition of macro 'TRANS_FEAT'
875 | static bool trans_##NAME(DisasContext *s, arg_##NAME *a) \
| ^~~~
../target/arm/tcg/translate-sve.c:4249:1: note: in expansion of macro 'DO_ZPZZ_FP'
4249 | DO_ZPZZ_FP(FSCALE, aa64_sve, sve_fscalbn)
| ^~~~~~~~~~
../target/arm/tcg/translate.h:875:47: error: pasting "arg_" and "(" does not give a valid preprocessing token
875 | static bool trans_##NAME(DisasContext *s, arg_##NAME *a) \
| ^~~~
../target/arm/tcg/translate-sve.c:4205:5: note: in expansion of macro 'TRANS_FEAT'
4205 | TRANS_FEAT(NAME, FEAT, gen_gvec_fpst_arg_zpzz, name##_zpzz_fns[a->esz], a)
| ^~~~~~~~~~
../target/arm/tcg/translate-sve.c:4249:1: note: in expansion of macro 'DO_ZPZZ_FP'
4249 | DO_ZPZZ_FP(FSCALE, aa64_sve, sve_fscalbn)
| ^~~~~~~~~~
In file included from ../target/arm/tcg/translate-sve.c💯
libqemu-aarch64-softmmu.a.p/decode-sve.c.inc:1227:13: warning: 'trans_FSCALE' used but never defined
1227 | static bool trans_FSCALE(DisasContext *ctx, arg_FSCALE *a);
| ^~~~~~~~~~~~
../target/arm/tcg/translate-sve.c:4249:30: warning: 'sve_fscalbn_zpzz_fns' defined but not used [-Wunused-const-variable=]
4249 | DO_ZPZZ_FP(FSCALE, aa64_sve, sve_fscalbn)
| ^~~~~~~~~~~
../target/arm/tcg/translate-sve.c:4201:42: note: in definition of macro 'DO_ZPZZ_FP'
4201 | static gen_helper_gvec_4_ptr * const name##_zpzz_fns[4] = { \
| ^~~~
As a kludge, undefine it globally in <qemu/osdep.h>.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251203120315.62889-1-philmd@linaro.org>
* Increase minimum gnutls to 3.7.5
* Increase minimum libgcrypt to 1.9.4
* Increase minimum nettle to 3.7.3
* Drop obsolete in-tree XTS impl
* Fix memory leak when loading certificates
* Remove/reduce duplication when loading certifcates
* Fix possible crash when certificates are unloaded
while an active TLS connection is using when in a
TLS handshake operation
* Deprecate use of dh-params.pem file
* Document how to create certificates with Post-Quantum
Cryptography compliant algorithms.
* Support loading multiple certificate identities to
allow support for Post-Quantum crypto in parallel
with traditional RSA/ECC
* Add "-run-with exit-with-parent=on" parameter
* Flush pending errors when seeing ENOBUFS with
a zero-copy send attempt
* Fix data buffer parameters in hash & IO channel APIs
to use 'void *'
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Merge tag 'next-pr-pull-request' of https://gitlab.com/berrange/qemu into staging
Merge crypto and other misc fixes / features
* Increase minimum gnutls to 3.7.5
* Increase minimum libgcrypt to 1.9.4
* Increase minimum nettle to 3.7.3
* Drop obsolete in-tree XTS impl
* Fix memory leak when loading certificates
* Remove/reduce duplication when loading certifcates
* Fix possible crash when certificates are unloaded
while an active TLS connection is using when in a
TLS handshake operation
* Deprecate use of dh-params.pem file
* Document how to create certificates with Post-Quantum
Cryptography compliant algorithms.
* Support loading multiple certificate identities to
allow support for Post-Quantum crypto in parallel
with traditional RSA/ECC
* Add "-run-with exit-with-parent=on" parameter
* Flush pending errors when seeing ENOBUFS with
a zero-copy send attempt
* Fix data buffer parameters in hash & IO channel APIs
to use 'void *'
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# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 03 Nov 2025 02:37:03 PM CET
# gpg: using RSA key DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [unknown]
# gpg: aka "Daniel P. Berrange <berrange@redhat.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: DAF3 A6FD B26B 6291 2D0E 8E3F BE86 EBB4 1510 4FDF
* tag 'next-pr-pull-request' of https://gitlab.com/berrange/qemu: (32 commits)
docs: creation of x509 certs compliant with post-quantum crypto
crypto: support upto 5 parallel certificate identities
crypto: expand logic to cope with multiple certificate identities
crypto: avoid loading the identity certs twice
crypto: avoid loading the CA certs twice
crypto: deprecate use of external dh-params.pem file
crypto: make TLS credentials structs private
crypto: fix lifecycle handling of gnutls credentials objects
crypto: introduce a wrapper around gnutls credentials
crypto: introduce method for reloading TLS creds
crypto: reduce duplication in handling TLS priority strings
crypto: remove duplication loading x509 CA cert
crypto: shorten the endpoint == server check in TLS creds
crypto: move release of DH parameters into TLS creds parent
crypto: remove needless indirection via parent_obj field
crypto: use g_autofree when loading x509 credentials
crypto: move check for TLS creds 'dir' property
crypto: remove redundant access() checks before loading certs
crypto: replace stat() with access() for credential checks
crypto: add missing free of certs array
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Otherwise we run the risk of name clashing, for example with
stm32l4x5_usart-test.c should we shuffle the includes.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20251030173302.1379174-1-alex.bennee@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
QEMU has a per-thread "bql_locked" variable stored in TLS section, showing
whether the current thread is holding the BQL lock.
It's a pretty handy variable. Function-wise, QEMU have codes trying to
conditionally take bql, relying on the var reflecting the locking status
(e.g. BQL_LOCK_GUARD), or in a GDB debugging session, we could also look at
the variable (in reality, co_tls_bql_locked), to see which thread is
currently holding the bql.
When using that as a debugging facility, sometimes we can observe multiple
threads holding bql at the same time. It's because QEMU's condvar APIs
bypassed the bql_*() API, hence they do not update bql_locked even if they
have released the mutex while waiting.
It can cause confusion if one does "thread apply all p co_tls_bql_locked"
and see multiple threads reporting true.
Fix this by moving the bql status updates into the mutex debug hooks. Now
the variable should always reflect the reality.
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250904223158.1276992-1-peterx@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Libguestfs wants to use qemu to run a captive appliance. When the
program linked to libguestfs exits, we want qemu to be cleaned up.
Libguestfs goes to great lengths to do this at the moment: it either
forks a separate process to ensure clean-up is done, or it asks
libvirt to clean up the qemu process. However this is complicated and
not totally reliable.
On Linux, FreeBSD and macOS, there are mechanisms to ensure a signal
or message is delivered to a process when its parent process goes
away. The qemu test suite even uses this mechanism on Linux (see
PR_SET_PDEATHSIG in tests/qtest/libqtest.c).
In nbdkit we have long had the concept of running nbdkit captively,
and we have the nbdkit --exit-with-parent flag to help
(https://libguestfs.org/nbdkit-captive.1.html#EXIT-WITH-PARENT)
This commit adds the same mechanism. The syntax is:
qemu -run-with exit-with-parent=on [...]
This is not a feature that most typical users of qemu (for running
general purpose, long-lived VMs) should use, so it defaults to off.
The exit-with-parent.[ch] files are copied from nbdkit, where they
have a 3-clause BSD license which is compatible with qemu:
https://gitlab.com/nbdkit/nbdkit/-/tree/master/common/utils?ref_type=heads
Thanks: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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Merge tag 'audio-test-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging
Audio clean-ups
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# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 31 Oct 2025 07:43:56 AM CET
# gpg: using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg: issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [unknown]
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [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: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5
* tag 'audio-test-pull-request' of https://gitlab.com/marcandre.lureau/qemu: (36 commits)
audio: deprecate HMP audio commands
audio: Rename @endianness argument as @big_endian for clarity
audio: Remove pointless local variables
audio: drop needless audio_driver "descr" field
audio: move capture API to own header
audio: cleanup, use bool for booleans
audio: remove dependency on spice header
audio: move audio.h under include/qemu/
audio/dbus: use a helper function to set the backend dbus server
audio: remove QEMUSoundCard
audio: rename AudioState -> AudioBackend
audio: move internal APIs to audio_int.h
audio/replay: fix type punning
audio: introduce AUD_set_volume_{in,out}_lr()
audio: remove AUDIO_HOST_ENDIANNESS
audio: remove some needless headers
audio: initialize card_head during object init
audio: register and unregister vmstate with AudioState
audio: keep vmstate handle with AudioState
audio: drop needless error message
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
- Make hw/arm/ common by adding a QOM type to machines to
tag in which binary (32 or 64-bit) they can be used.
Convert the Virt and SBSA-Ref machines.
- Build Xen files once
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Merge tag 'single-binary-20251030' of https://github.com/philmd/qemu into staging
Various patches related to single binary work:
- Make hw/arm/ common by adding a QOM type to machines to
tag in which binary (32 or 64-bit) they can be used.
Convert the Virt and SBSA-Ref machines.
- Build Xen files once
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# gpg: Signature made Thu 30 Oct 2025 02:50:38 PM CET
# gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [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: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE
* tag 'single-binary-20251030' of https://github.com/philmd/qemu: (23 commits)
hw/riscv: Replace target_ulong uses
hw/xen: Build only once
hw/xen: Replace target_ulong by agnostic target_long_bits()
hw/xen: Use BITS_PER_BYTE & MAKE_64BIT_MASK() in req_size_bits()
hw/arm/meson: Move Xen files to arm_common_ss[]
hw/arm/virt: Build only once
hw/arm/virt-acpi-build: Build only once
hw/arm/virt-acpi-build: Include missing 'cpu.h' header
hw/arm/sbsa-ref: Build only once
hw/arm/sbsa-ref: Include missing 'cpu.h' header
hw/arm/virt: Get default CPU type at runtime
hw/arm/virt: Replace TARGET_AARCH64 -> target_aarch64()
qemu/target_info: Add target_base_arm() helper
qemu/target_info: Add target_aarch64() helper
qemu/target_info: Add target_arm() helper
hw/arm/virt: Check accelerator availability at runtime
hw/arm/virt: Register valid CPU types dynamically
config/target: Implement per-binary TargetInfo structure (ARM, AARCH64)
meson: Prepare to accept per-binary TargetInfo structure implementation
hw/arm: Filter machine types for qemu-system-arm/aarch64 binaries
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For modularity/clarity reasons, move the capture API in a specific
header.
The current audio/ header license is MIT.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Use slightly better types for the job.
Fix some checkpatch issues.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Add a helper to check whether the target base architecture
is ARM (either 32-bit or 64-bit).
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20251021210144.58108-3-philmd@linaro.org>
Add a helper to distinct whether the binary is targetting
Aarch64 or not.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20251021210144.58108-2-philmd@linaro.org>
Add a helper to distinct whether the binary is targetting
ARM (32-bit only) or not.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20251021210144.58108-1-philmd@linaro.org>
The plugin API allows registration of callbacks for a variety of VCPU
related events, such as VCPU reset, idle and resume. In addition, we
recently introduced API for registering callbacks for discontinuity
events, specifically for interrupts, exceptions and host calls.
This change introduces the corresponding hooks called from target
specific code inside qemu.
Signed-off-by: Julian Ganz <neither@nut.email>
Message-ID: <20251027110344.2289945-10-alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
The plugin API allows registration of callbacks for a variety of VCPU
related events, such as VCPU reset, idle and resume. In addition to
those events, we recently defined discontinuity events, which include
traps.
This change introduces a function to register callbacks for these
events. We define one distinct plugin event type for each type of
discontinuity, granting fine control to plugins in term of which events
they receive.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Julian Ganz <neither@nut.email>
Message-ID: <20251027110344.2289945-9-alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
The plugin API allows registration of callbacks for a variety of VCPU
related events, such as VCPU reset, idle and resume. However, traps of
any kind, i.e. interrupts or exceptions, were previously not covered.
These kinds of events are arguably quite significant and usually go hand
in hand with a PC discontinuity. On most platforms, the discontinuity
also includes a transition from some "mode" to another. Thus, plugins
for the analysis of (virtualized) embedded systems may benefit from or
even require the possiblity to perform work on the occurance of an
interrupt or exception.
This change introduces the concept of such a discontinuity event in the
form of an enumeration. Currently only traps are covered. Specifically
we (loosely) define interrupts, exceptions and host calls across all
platforms. In addition, this change introduces a type to use for
callback functions related to such events. Since possible modes and the
enumeration of interupts and exceptions vary greatly between different
architectures, the callback type only receives the VCPU id, the type of
event as well as the old and new PC.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Julian Ganz <neither@nut.email>
Message-ID: <20251027110344.2289945-8-alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
When adding the TargetInfo::@endianness field in commit a37aec2e7d,
we neglected to include the "qapi-types-common.h" header to get the
EndianMode enum definition. Fix that.
Fixes: a37aec2e7d ("qemu/target-info: Add target_endian_mode()")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20251020220941.65269-10-philmd@linaro.org>
Stop detecting 32-bit PPC host as supported.
See previous commit for rationale.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[rth: Retain _ARCH_PPC64 check in udiv_qrnnd]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20251014173900.87497-4-philmd@linaro.org>
- PeterX's fix on tls warning for preempt channel when migratino completes
- Arun's series to enhance error reporting for vTPM and migration framework
- PeterX's patch to cleanup multifd send TLS BYE messages
- Juraj's fix on postcopy start state transition when switchover failed
- Yanfei's fix to migrate APIC before VFIO-PCI to avoid irq fallbacks
- Dan's cleanup to simplify error reporting in qemu_fill_buffer()
- PeterM's fix on address space leak when cpu hot plug / unplug
- Steve's cpr-exec wholeset
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Merge tag 'staging-pull-request' of https://gitlab.com/peterx/qemu into staging
Migration/Memory Pull for 10.2
- PeterX's fix on tls warning for preempt channel when migratino completes
- Arun's series to enhance error reporting for vTPM and migration framework
- PeterX's patch to cleanup multifd send TLS BYE messages
- Juraj's fix on postcopy start state transition when switchover failed
- Yanfei's fix to migrate APIC before VFIO-PCI to avoid irq fallbacks
- Dan's cleanup to simplify error reporting in qemu_fill_buffer()
- PeterM's fix on address space leak when cpu hot plug / unplug
- Steve's cpr-exec wholeset
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# gpg: aka "Peter Xu <peterx@redhat.com>" [unknown]
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* tag 'staging-pull-request' of https://gitlab.com/peterx/qemu: (45 commits)
migration-test: test cpr-exec
vfio: cpr-exec mode
migration: cpr-exec docs
migration: cpr-exec mode
migration: cpr-exec save and load
migration: cpr-exec-command parameter
oslib: qemu_clear_cloexec
migration: add cpr_walk_fd
migration: multi-mode notifier
migration: simplify error reporting after channel read
physmem: Destroy all CPU AddressSpaces on unrealize
memory: New AS helper to serialize destroy+free
include/system/memory.h: Clarify address_space_destroy() behaviour
migration: ensure APIC is loaded prior to VFIO PCI devices
migration: Fix state transition in postcopy_start() error handling
migration/multifd/tls: Cleanup BYE message processing on sender side
migration: HMP: Adjust the order of output fields
migration: Make migration_has_failed() work even for CANCELLING
io/crypto: Move tls premature termination handling into QIO layer
backends/tpm: Propagate vTPM error on migration failure
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Define qemu_clear_cloexec, analogous to qemu_set_cloexec.
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/1759332851-370353-4-git-send-email-steven.sistare@oracle.com
Signed-off-by: Peter Xu <peterx@redhat.com>
* Fix MSI table size limit
* Add riscv64 to FirmwareArchitecture
* Sync RISC-V hwprobe with Linux
* Implement MonitorDef HMP API
* Update OpenSBI to v1.7
* Fix SiFive UART character drop issue and minor refactors
* Fix RISC-V timer migration issues
* Use riscv_cpu_is_32bit() when handling SBI_DBCN reg
* Use riscv_csrr in riscv_csr_read
* Align memory allocations to 2M on RISC-V
* Do not use translator_ldl in opcode_at
* Minor fixes of RISC-V CFI
* Modify minimum VLEN rule
* Fix vslide1[up|down].vx unexpected result when XLEN=32 and SEW=64
* Fixup IOMMU PDT Nested Walk
* Fix endianness swap on compressed instructions
* Update status of IOMMU kernel support
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Merge tag 'pull-riscv-to-apply-20251003-3' of https://github.com/alistair23/qemu into staging
First RISC-V PR for 10.2
* Fix MSI table size limit
* Add riscv64 to FirmwareArchitecture
* Sync RISC-V hwprobe with Linux
* Implement MonitorDef HMP API
* Update OpenSBI to v1.7
* Fix SiFive UART character drop issue and minor refactors
* Fix RISC-V timer migration issues
* Use riscv_cpu_is_32bit() when handling SBI_DBCN reg
* Use riscv_csrr in riscv_csr_read
* Align memory allocations to 2M on RISC-V
* Do not use translator_ldl in opcode_at
* Minor fixes of RISC-V CFI
* Modify minimum VLEN rule
* Fix vslide1[up|down].vx unexpected result when XLEN=32 and SEW=64
* Fixup IOMMU PDT Nested Walk
* Fix endianness swap on compressed instructions
* Update status of IOMMU kernel support
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# gpg: Signature made Thu 02 Oct 2025 08:25:14 PM PDT
# gpg: using RSA key 6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
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* tag 'pull-riscv-to-apply-20251003-3' of https://github.com/alistair23/qemu: (26 commits)
docs: riscv-iommu: Update status of kernel support
target/riscv: Fix endianness swap on compressed instructions
hw/riscv/riscv-iommu: Fixup PDT Nested Walk
target/riscv: rvv: Fix vslide1[up|down].vx unexpected result when XLEN=32 and SEW=64
target/riscv: rvv: Modify minimum VLEN according to enabled vector extensions
target/riscv: rvv: Replace checking V by checking Zve32x
target/riscv: Fix ssamoswap error handling
target/riscv: Fix SSP CSR error handling in VU/VS mode
target/riscv: Fix the mepc when sspopchk triggers the exception
target/riscv: do not use translator_ldl in opcode_at
qemu/osdep: align memory allocations to 2M on RISC-V
target/riscv: use riscv_csrr in riscv_csr_read
target/riscv/kvm: Use riscv_cpu_is_32bit() when handling SBI_DBCN reg
target/riscv: Save stimer and vstimer in CPU vmstate
hw/intc: Save timers array in RISC-V mtimer VMState
migration: Add support for a variable-length array of UINT32 pointers
hw/intc: Save time_delta in RISC-V mtimer VMState
hw/char: sifive_uart: Add newline to error message
hw/char: sifive_uart: Remove outdated comment about Tx FIFO
hw/char: sifive_uart: Avoid pushing Tx FIFO when size is zero
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Similar to other architectures (e.g., x86_64, aarch64), utilizing THP on RISC-V
KVM requires 2MiB-aligned memory blocks.
Signed-off-by: Xuemei Liu <liu.xuemei1@zte.com.cn>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-ID: <20250924131803656Yqt9ZJKfevWkInaGppFdE@zte.com.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Bindgen makes the LOG_* constants unsigned, even if they are defined as
(1 << 15):
pub const LOG_TRACE: u32 = 32768;
Make them unsigned in C as well through the BIT() macro, and also change
the type of the variable that they are used with.
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250929154938.594389-14-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Now it's unused.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Now we can use qemu_set_blocking() in these cases.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Use common qemu_set_blocking() instead.
Note that pre-patch the behavior of Win32 and Linux realizations
are inconsistent: we ignore failure for Win32, and assert success
for Linux.
How do we convert the callers?
1. Most of callers call qemu_socket_set_nonblock() on a
freshly created socket fd, in conditions when we may simply
report an error. Seems correct switching to error handling
both for Windows (pre-patch error is ignored) and Linux
(pre-patch we assert success). Anyway, we normally don't
expect errors in these cases.
Still in tests let's use &error_abort for simplicity.
What are exclusions?
2. hw/virtio/vhost-user.c - we are inside #ifdef CONFIG_LINUX,
so no damage in switching to error handling from assertion.
3. io/channel-socket.c: here we convert both old calls to
qemu_socket_set_nonblock() and qemu_socket_set_block() to
one new call. Pre-patch we assert success for Linux in
qemu_socket_set_nonblock(), and ignore all other errors here.
So, for Windows switch is a bit dangerous: we may get
new errors or crashes(when error_abort is passed) in
cases where we have silently ignored the error before
(was it correct in all such cases, if they were?) Still,
there is no other way to stricter API than take
this risk.
4. util/vhost-user-server - compiled only for Linux (see
util/meson.build), so we are safe, switching from assertion to
&error_abort.
Note: In qga/channel-posix.c we use g_warning(), where g_printerr()
would actually be a better choice. Still let's for now follow
common style of qga, where g_warning() is commonly used to print
such messages, and no call to g_printerr(). Converting everything
to use g_printerr() should better be another series.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
In generic code we have qio_channel_set_blocking(), which takes
bool parameter, and qemu_file_set_blocking(), which as well takes
bool parameter.
At lower fd-layer we have a mess of functions:
- enough direct calls to Unix-specific g_unix_set_fd_nonblocking()
(of course, all calls are out of Windows-compatible code), which
is glib specific with GError, which we can't use, and have to
handle error-reporting by hand after the call.
and several platform-agnostic qemu_* helpers:
- qemu_socket_set_nonblock(), which asserts success for posix (still,
in most cases we can handle the error in better way) and ignores
error for win32 realization
- qemu_socket_try_set_nonblock(), providing and error, but not errp,
so we have to handle it after the call
- qemu_socket_set_block(), which simply ignores an error
Note, that *_socket_* word in original API, which we are going
to substitute was intended, because Windows support these operations
only for sockets. What leads to solution of dropping it again?
1. Having a QEMU-native wrapper with errp parameter
for g_unix_set_fd_nonblocking() for non-socket fds worth doing,
at least to unify error handling.
2. So, if try to keep _socket_ vs _file_ words, we'll have two
actually duplicated functions for Linux, which actually will
be executed successfully on any (good enough) fds, and nothing
prevent using them improperly except for the name. That doesn't
look good.
3. Naming helped us in the world where we crash on errors or
ignore them. Now, with errp parameter, callers are intended to
proper error checking. And for places where we really OK with
crash-on-error semantics (like tests), we have an explicit
&error_abort.
So, this commit starts a series, which will effectively revert
commit ff5927baa7 "util: rename qemu_*block() socket functions"
(which in turn was reverting f9e8cacc55
"oslib-posix: rename socket_set_nonblock() to qemu_set_nonblock()",
so that's a long story).
Now we don't simply rename, instead we provide the new API and
update all the callers.
This commit only introduces a new fd-layer wrapper. Next commits
will replace old API calls with it, and finally remove old API.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is largely derived from existing Darwin support. FreeBSD
apparently has better support for *at() system calls so doesn't require
workarounds for a missing mknodat(). The implementation has a couple of
warts however:
- The extattr(2) system calls don't support anything akin to
XATTR_CREATE or XATTR_REPLACE, so a racy workaround is implemented.
- Attribute names cannot begin with "user." or "system." on ZFS.
However FreeBSD's extattr(2) system calls support two dedicated
namespaces for these two. So "user." or "system." prefixes are
trimmed off from attribute names and instead EXTATTR_NAMESPACE_USER or
EXTATTR_NAMESPACE_SYSTEM are picked and passed to extattr system calls
accordingly.
The 9pfs tests were verified to pass on the UFS, ZFS and tmpfs
filesystems.
Signed-off-by: Mark Johnston <markj@FreeBSD.org>
Link: https://lore.kernel.org/qemu-devel/aJOWhHB2p-fbueAm@nuc
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
We won't use the SSE GFNI instructions, so delay
detection until we know AVX is present.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Move the workaround out of linux-user/elfload.c, so that
we don't have to replicate it in many places. Place it
immediately after the include of <signal.h>, which draws
in the relevant symbols.
Note that ARCH_DLINFO is not defined by the kernel header,
and so there's no need to undef it either.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
In commit b0438861ef ("host-utils: Avoid using __builtin_subcll on
buggy versions of Apple Clang") we added a workaround for a bug in
Apple Clang 14 where its __builtin_subcll() implementation was wrong.
This bug was only present in Apple Clang 14, not in upstream clang,
and is not present in Apple Clang versions 15 and newer.
Since commit 4e035201 we have required at least Apple Clang 15, so we
no longer build with the buggy versions. We can therefore drop the
workaround. This is effectively a revert of b0438861ef.
This should not be backported to stable branches, which may still
need to support Apple Clang 14.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3030
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250714145033.1908788-1-peter.maydell@linaro.org
SPCR acpi table can now be disabled
vhost-vdpa can now report hashing capability to guest
PPTT acpi table now tells guest vCPUs are identical
vost-user-blk now shuts down faster
loongarch64 now supports bios-tables-test
intel_iommu now supports ATS
cxl now supports DCD Fabric Management Command Set
arm now supports acpi pci hotplug
fixes, cleanups
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging
virtio,pci,pc: features, fixes, tests
SPCR acpi table can now be disabled
vhost-vdpa can now report hashing capability to guest
PPTT acpi table now tells guest vCPUs are identical
vost-user-blk now shuts down faster
loongarch64 now supports bios-tables-test
intel_iommu now supports ATS
cxl now supports DCD Fabric Management Command Set
arm now supports acpi pci hotplug
fixes, cleanups
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [full]
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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (97 commits)
hw/cxl: mailbox-utils: 0x5605 - FMAPI Initiate DC Release
hw/cxl: mailbox-utils: 0x5604 - FMAPI Initiate DC Add
hw/cxl: Create helper function to create DC Event Records from extents
hw/cxl: mailbox-utils: 0x5603 - FMAPI Get DC Region Extent Lists
hw/cxl: mailbox-utils: 0x5602 - FMAPI Set DC Region Config
hw/mem: cxl_type3: Add DC Region bitmap lock
hw/cxl: Move definition for dynamic_capacity_uuid and enum for DC event types to header
hw/cxl: mailbox-utils: 0x5601 - FMAPI Get Host Region Config
hw/mem: cxl_type3: Add dsmas_flags to CXLDCRegion struct
hw/cxl: mailbox-utils: 0x5600 - FMAPI Get DCD Info
hw/cxl: fix DC extent capacity tracking
tests: virt: Update expected ACPI tables for virt test
hw/acpi/aml-build: Build a root node in the PPTT table
hw/acpi/aml-build: Set identical implementation flag for PPTT processor nodes
tests: virt: Allow changes to PPTT test table
qtest/bios-tables-test: Generate reference blob for DSDT.acpipcihp
qtest/bios-tables-test: Generate reference blob for DSDT.hpoffacpiindex
tests/qtest/bios-tables-test: Add aarch64 ACPI PCI hotplug test
tests/qtest/bios-tables-test: Prepare for addition of acpi pci hp tests
hw/arm/virt: Let virt support pci hotplug/unplug GED event
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Conflicts:
net/vhost-vdpa.c
vhost_vdpa_set_steering_ebpf() was removed, resolve the context
conflict.
Only accelerator implementations (and the common accelator
code) need to know about AccelClass internals. Move the
definition out but forward declare AccelState and AccelClass.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250703173248.44995-39-philmd@linaro.org>
Restrict "exec/tswap.h" to the tswap*() methods,
move the load/store helpers with the other ones
declared in "qemu/bswap.h".
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20250708215320.70426-8-philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250708215320.70426-6-philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
target_endian_mode() returns the default endianness (QAPI type)
of a target.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250708215320.70426-5-philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20250708215320.70426-4-philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
To keep "qemu/target-info.h" self-contained to native
types, declare target_arch() -- which returns a QAPI
type -- in "qemu/target-info-qapi.h".
No logical change.
Keeping native types in "qemu/target-info.h" is necessary
to keep building tests such tests/tcg/plugins/mem.c, as
per the comment added in commit ecbcc9ead2 ("tests/tcg:
add a system test to check memory instrumentation"):
/*
* plugins should not include anything from QEMU aside from the
* API header. However as this is a test plugin to exercise the
* internals of QEMU and we want to avoid needless code duplication we
* do so here. bswap.h is pretty self-contained although it needs a
* few things provided by compiler.h.
*/
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20250708215320.70426-3-philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The function commit_abort() calls bdrv_drained_begin(), which must be
called with the graph unlocked.
Also mark the JobDriver's abort() callback as GRAPH_UNLOCKED_PTR,
because that is the callback via which commit_abort() is reached.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-41-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The function stream_prepare() calls bdrv_drain_all_begin(), which
must be called with the graph unlocked.
Also mark the JobDriver's prepare() callback as GRAPH_UNLOCKED_PTR,
because that is the callback via which stream_prepare() is reached.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Message-ID: <20250530151125.955508-34-f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@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>
Recent patch [1] renames the save_live_complete_precopy handler to
save_complete, as the machine is not live in most cases when this
handler is executed. The same is true also for
save_live_complete_precopy_thread, therefore this patch removes the
"live" keyword from the handler itself and related types to keep the
naming unified.
In contrast to save_complete, this handler is only executed at the end
of precopy, therefore the "precopy" keyword is retained.
[1]: https://lore.kernel.org/all/20250613140801.474264-7-peterx@redhat.com/
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Juraj Marcin <jmarcin@redhat.com>
Link: https://lore.kernel.org/r/20250626085235.294690-1-jmarcin@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This makes it possible to lock the log file; it also makes log_mask_ln!
not allocate memory when logging a constant string.
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Accelerators call pre_resume() once. Since it isn't a method to
call for each vCPU, move it from AccelOpsClass to AccelClass.
Adapt WHPX.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250702185332.43650-21-philmd@linaro.org>
In order to have AccelClass methods instrospect their state,
we need to pass AccelState by argument.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-37-philmd@linaro.org>
This method only accesses xen_domid/xen_domid_restrict, which are both
related to the 'accelerator', not the machine. Besides, xen_domid aims
to be in Xen AccelState and xen_domid_restrict a xen_domid_restrict
QOM property.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-36-philmd@linaro.org>
