Commit graph

122142 commits

Author SHA1 Message Date
Richard Henderson
3aad4bc8be target/arm: Add zt0_excp_el to DisasContext
Pipe the value through from SMCR_ELx through hflags and into
the disassembly context.  Enable EZT0 in smcr_write.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-17-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
694b2625dd target/arm: Add ZT0
This is a 512-bit array introduced with SME2.
Save it only when ZA is in use.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-16-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
d8ff459b40 target/arm: Add isar feature tests for SME2p1, SVE2p1
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-15-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
81123324a5 target/arm: Rename zarray to za_state.za
The whole ZA state will also contain ZT0.
Make things easier in aarch64_set_svcr to zero both
by wrapping them in a common structure.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-14-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
d74f0ceae5 target/arm: Use FPST_ZA for sme_fmopa_[hsd]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-13-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
c994c84d38 target/arm: Introduce FPST_ZA, FPST_ZA_F16
Rather than repeatedly copying FPST_FPCR to locals
and setting default nan mode, create dedicated float_status.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-12-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
afb1bd20df target/arm: Remove CPUARMState.vfp.scratch
The last use of this field was removed in b2fc7be972.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-11-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
bf020eaa67 target/arm: Fix bfdotadd_ebf vs nan selection
Implement FPProcessNaNs4 within bfdotadd_ebf, rather than
simply letting NaNs propagate through the function.

Cc: qemu-stable@nongnu.org
Fixes: 0e1850182a ("target/arm: Implement FPCR.EBF=1 semantics for bfdotadd()")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250704142112.1018902-10-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
cfc688c00a target/arm: Fix f16_dotadd vs nan selection
Implement FPProcessNaNs4 within f16_dotadd, rather than
simply letting NaNs propagate through the function.

Cc: qemu-stable@nongnu.org
Fixes: 3916841ac7 ("target/arm: Implement FMOPA, FMOPS (widening)")
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-9-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
3801c5b75f target/arm: Fix PSEL size operands to tcg_gen_gvec_ands
Gvec only operates on size 8 and multiples of 16.
Predicates may be any multiple of 2.
Round up the size using the appropriate function.

Cc: qemu-stable@nongnu.org
Fixes: 598ab0b24c ("target/arm: Implement PSEL")
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
a827b94c67 target/arm: Disable FEAT_F64MM if maximum SVE vector size too small
All F64MM instructions operate on a 256-bit vector.
If only 128-bit vectors is supported by the cpu,
then the cpu cannot enable F64MM.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
c60a52fc57 target/arm: Fix FMMLA (64-bit element) for 128-bit VL
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
4f06e6eaeb target/arm: Replace @rda_rn_rm_e0 in sve.decode
Replace @rda_rn_rm_e0 with @rda_rn_rm_ex, and require
users to supply an explicit esz.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
e6ffd009c7 target/arm: Fix 128-bit element ZIP, UZP, TRN
We missed the instructions UDEF when the vector size is too small.
We missed marking the instructions non-streaming with SME.

Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
b4b2e070f4 target/arm: Fix sve_access_check for SME
Do not assume SME implies SVE.  Ensure that the non-streaming
check is present along the SME path, since it is not implied
by sme_*_enabled_check.

Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
Richard Henderson
f9b0f69304 target/arm: Fix SME vs AdvSIMD exception priority
We failed to raise an exception when
sme_excp_el == 0 and fp_excp_el == 1.

Cc: qemu-stable@nongnu.org
Fixes: 3d74825f4d ("target/arm: Add SME enablement checks")
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 15:52:21 +01:00
William Kosasih
c9bc9f57ff target/arm: Fix VST2 helper store alignment checks
This patch adds alignment checks in the store operations in the VST2
instruction.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-12-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
William Kosasih
28b3745991 target/arm: Fix VST4 helper store alignment checks
This patch adds alignment checks in the store operations in the VST4
instruction.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-11-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
William Kosasih
26aa0e36bf target/arm: Fix VLD2 helper load alignment checks
This patch adds alignment checks in the load operations in the VLD2
instruction.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-10-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
William Kosasih
a7498d625f target/arm: Fix VLD4 helper load alignment checks
This patch adds alignment checks in the load operations in the VLD4
instruction.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-9-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
William Kosasih
13ab3764ea target/arm: Fix VSTR_SG helper store alignment checks
This patch adds alignment checks in the store operations in the VSTR_SG
instructions.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-8-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
William Kosasih
f8436889a0 target/arm: Fix VLDR_SG helper load alignment checks
This patch adds alignment checks in the load operations in the VLDR_SG
instructions.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-7-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
William Kosasih
c8bde49179 target/arm: Fix VSTR helper store alignment checks
This patch adds alignment checks in the store operations in the VSTR
instruction.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-6-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
William Kosasih
56249f3e6c target/arm: Fix VLDR helper load alignment checks
This patch adds alignment checks in the load operations in the VLDR
instruction.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-5-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
William Kosasih
c4940752ae target/arm: Fix function_return helper load alignment checks
This patch adds alignment checks in the load operations (when unstacking the
return pc and psr) in the FunctionReturn pseudocode.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-4-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
William Kosasih
94b07a46d1 target/arm: Fix BLXNS helper store alignment checks
This patch adds alignment checks in the store operations (when stacking the
return pc and psr) in the BLXNS instruction.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-3-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
William Kosasih
fa8f6f25ea target/arm: Bring VLSTM/VLLDM helper store/load closer to the ARM pseudocode
This patch brings the VLSTM and VLLDM helper functions closer to the ARM
pseudocode by adding MO_ALIGN to the MemOpIdx of the associated store
(`cpu_stl_mmu`) operations and load (`cpu_ldl_mmu`) operations.

Note that this is not a bug fix: an 8-byte alignment check already exists
and remains in place, enforcing stricter alignment than the 4 bytes
requirement in the individual loads and stores. This change merely makes the
helper implementations closer to the ARM pseudocode.

That said, as a side effect, the MMU index is now resolved once instead of
on every `cpu_*_data_ra` call, reducing redundant lookups

Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-2-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:44:20 +01:00
Thomas Huth
9526b9b620 hw/arm/highbank: Mark the "highbank" and the "midway" machine as deprecated
We don't have any automatic regression tests for these machines and
when asking the usual suspects on the mailing list we came to the
conclusion that nobody tests these machines manually, too, so it seems
like this is currently just completely unused code. Mark them as depre-
cated to see whether anybody still speaks up during the deprecation
period, otherwise we can likely remove these two machines in a couple
of releases.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20250702113051.46483-1-thuth@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: tweaked deprecation.rst text]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-07-04 13:39:30 +01:00
Stefan Hajnoczi
c77283dd5d * Fix file names of renamed files in comments and MAINTAINERS
* Fix the "deprecated props" in QOM on s390x
 * Fix URL of the aarch64_sbsaref_freebsd functional test
 * Fix some trouble with trible
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Merge tag 'pull-request-2025-07-02' of https://gitlab.com/thuth/qemu into staging

* Fix file names of renamed files in comments and MAINTAINERS
* Fix the "deprecated props" in QOM on s390x
* Fix URL of the aarch64_sbsaref_freebsd functional test
* Fix some trouble with trible

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# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
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* tag 'pull-request-2025-07-02' of https://gitlab.com/thuth/qemu:
  tests/functional/test_aarch64_sbsaref_freebsd: Fix the URL of the ISO image
  target/s390x: A fix for the trouble with tribles
  target/s390x: set has_deprecated_props flag
  MAINTAINERS: fix paths for relocated files
  treewide: fix paths for relocated files in comments
  treewide: update docs file extensions (.txt -> .rst) in comments
  MAINTAINERS: fix VMware filename typo (vwm -> vmw)
  MAINTAINERS: fix vendor capitalization (Vmware -> VMware)
  MAINTAINERS: update docs file extensions (.txt -> .rst)

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-07-03 06:01:41 -04:00
Stefan Hajnoczi
597639c427 Maintainer updates for June (gitlab, semihosting, plugins, virtio-gpu)
- mark s390x runner system tests as allow_fail
  - build semihosting once
  - add register write support to plugins
  - add virtual memory write support to plugins
  - add harder memory read/write support to plugins
  - add patcher plugin and tests
  - re-stock virtio-gpu MAINTAINERS
  - fix context init for Venus fences
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Merge tag 'pull-10.1-maintainer-june-2025-020725-1' of https://gitlab.com/stsquad/qemu into staging

Maintainer updates for June (gitlab, semihosting, plugins, virtio-gpu)

 - mark s390x runner system tests as allow_fail
 - build semihosting once
 - add register write support to plugins
 - add virtual memory write support to plugins
 - add harder memory read/write support to plugins
 - add patcher plugin and tests
 - re-stock virtio-gpu MAINTAINERS
 - fix context init for Venus fences

* tag 'pull-10.1-maintainer-june-2025-020725-1' of https://gitlab.com/stsquad/qemu:
  virtio-gpu: support context init multiple timeline
  MAINTAINERS: add Akihiko and Dmitry as reviewers
  MAINTAINERS: add myself to virtio-gpu for Odd Fixes
  plugins: Update plugin version and add notes
  plugins: Add patcher plugin and test
  tests/tcg: Remove copy-pasted notes and from i386 and add x86_64 system tests to tests
  plugins: Add memory hardware address read/write API
  plugins: Add memory virtual address write API
  plugins: Add enforcement of QEMU_PLUGIN_CB flags in register R/W callbacks
  plugins: Add register write API
  gdbstub: Expose gdb_write_register function to consumers of gdbstub
  semihosting/uaccess: Compile once
  semihosting/uaccess: Remove uses of target_ulong type
  tests/functional: Add PCI hotplug test for aarch64
  gitlab: mark s390x-system to allow failures

Conflicts:
  tests/functional/meson.build

  Context conflict with commit 7bc86ccbb5 ("tests/functional: test
  device passthrough on aarch64"), keep both changes to
  tests_aarch64_system_thorough[].
2025-07-03 05:58:56 -04:00
Thomas Huth
01e2b1bc27 tests/functional/test_aarch64_sbsaref_freebsd: Fix the URL of the ISO image
The original image has been removed from the server, so the test
currently fails if it has to fetch the asset, but we can still
download the ISO from the archive server. While we're at it, prefer
the XZ compressed image, it's much smaller and thus the download
should be faster.

Message-ID: <20250701105809.366180-1-thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2025-07-02 18:29:57 +02:00
Thomas Huth
10d4365c9e target/s390x: A fix for the trouble with tribles
While Tribbles are cute, it should be "triple store" here,
not "trible store".

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250701194241.434183-1-thuth@redhat.com>
2025-07-02 18:29:57 +02:00
Collin Walling
27aa790376 target/s390x: set has_deprecated_props flag
Now that the deprecated_props is an optional field, the expansion method
must now set the "has_deprecated_props" flag in order for the data to be
output from the response.

Fixes: 448553bb7c (qapi: Make CpuModelExpansionInfo::deprecated-props optional and generic)
Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250630024404.940882-1-walling@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2025-07-02 18:26:27 +02:00
Sean Wei
c6198abbb1 MAINTAINERS: fix paths for relocated files
Several files were renamed in previous commits, causing their entries
in MAINTAINERS to reference outdated paths.
This prevents scripts/get_maintainer.pl from correctly matching
these files to their maintainers.

Update the filenames to reflect their current locations so that
maintainer lookup works properly.

Related commits
---------------

  c45460decb (Oct 2023)
    hw/input/stellaris_input: Rename to stellaris_gamepad
    Rename  include/hw/input/{gamepad.h => stellaris_gamepad.h}

  4faf359acc (Nov 2020)
    docs: Move virtio-net-failover.rst into the system manual
    Rename  docs/{ => system}/virtio-net-failover.rst

  89857312f3 (Apr 2024)
    hw/usb: move stubs out of stubs/
    Rename  stubs/usb-dev-stub.c => hw/usb/bus-stub.c

  f2604d8508 (Apr 2024)
    hw/virtio: move stubs out of stubs/
    Rename  stubs/virtio-md-pci.c => hw/virtio/virtio-md-stubs.c

  2c888febdf (Apr 2024)
    memory-device: move stubs out of stubs/
    Rename  stubs/memory_device.c => hw/mem/memory-device-stubs.c

  d481cec756 (Oct 2024)
    migration: Move cpu-throttle.c from system to migration
    Rename  {system => migration}/cpu-throttle.c

  864a3fa439 (Jan 2023)
    monitor: Rename misc.c to hmp-target.c
    Rename  monitor/{misc.c => hmp-target.c}

Signed-off-by: Sean Wei <me@sean.taipei>
Message-ID: <374597a7-94e4-45b2-9617-35183db3ea9d@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2025-07-02 18:26:27 +02:00
Sean Wei
c95b08106b treewide: fix paths for relocated files in comments
After the docs directory restructuring, several comments
refer to paths that no longer exist.

Replace these references to the current file locations
so readers can find the correct files.

Related commits
---------------

  189c099f75 (Jul 2021)
    docs: collect the disparate device emulation docs into one section
    Rename  docs/system/{ => devices}/nvme.rst

  5f4c96b779 (Feb 2023)
    docs/system/loongarch: update loongson3.rst and rename it to virt.rst
    Rename  docs/system/loongarch/{loongson3.rst => virt.rst}

  fe0007f3c1 (Sep 2023)
    exec: Rename cpu.c -> cpu-target.c
    Rename  cpus-common.c => cpu-common.c

  42fa9665e5 (Apr 2025)
    exec: Restrict 'cpu_ldst.h' to accel/tcg/
    Rename  include/{exec/cpu_ldst.h => accel/tcg/cpu-ldst.h}

Signed-off-by: Sean Wei <me@sean.taipei>
Message-ID: <20250616.qemu.relocated.06@sean.taipei>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2025-07-02 18:26:27 +02:00
Sean Wei
e06cd79138 treewide: update docs file extensions (.txt -> .rst) in comments
Several source comments still refer to docs with the old .txt
extension that were previously converted to reStructuredText.

Update these references to use the correct .rst extensions to
maintain accurate in-tree documentation pointers.

No functional changes.

Related commits:
  50f8174c5c (Jul 2021): docs/specs/acpi_nvdimm: Convert to rST
  f054eb1c92 (Jul 2021): docs/specs/acpi_pci_hotplug: Convert to rST
  912fb3678b (Sep 2023): docs/specs/vmgenid: Convert to rST
  bb1cff6ee0 (Sep 2023): docs/specs/ivshmem-spec: Convert to rST
  55ff468f78 (Jan 2022): docs: Rename ppc-spapr-hotplug.txt to .rst

Signed-off-by: Sean Wei <me@sean.taipei>
Message-ID: <20250616.qemu.relocated.05@sean.taipei>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2025-07-02 18:26:27 +02:00
Sean Wei
8231feef53 MAINTAINERS: fix VMware filename typo (vwm -> vmw)
The entry for the VMware PVSCSI spec uses "vwm" instead of "vmw",
which does not match any file in the tree.

Correct the path so scripts/get_maintainer.pl can match the file.

Signed-off-by: Sean Wei <me@sean.taipei>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250616.qemu.relocated.04@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2025-07-02 18:26:27 +02:00
Sean Wei
1ed84eb01f MAINTAINERS: fix vendor capitalization (Vmware -> VMware)
"VMware" is the vendor's official spelling.
Adjust the spelling in MAINTAINERS for consistency.

Signed-off-by: Sean Wei <me@sean.taipei>
Message-ID: <20250616.qemu.relocated.03@sean.taipei>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2025-07-02 18:26:27 +02:00
Sean Wei
1d6045148f MAINTAINERS: update docs file extensions (.txt -> .rst)
The documentation tree has been converted to reStructuredText, but
two entries in MAINTAINERS still point to the removed *.txt files.

This prevents scripts/get_maintainer.pl from matching the documents.

Update those entries to *.rst so the maintainer script works again.

Related commits:
  8472cc5dbe (Sep 2023): docs/specs/vmw_pvscsi-spec: Convert to rST
  8e72ceee5c (Jun 2022): Rename docs/specs/fw_cfg.txt to .rst

Signed-off-by: Sean Wei <me@sean.taipei>
Message-ID: <20250616.qemu.relocated.01@sean.taipei>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2025-07-02 18:26:27 +02:00
Yiwei Zhang
1fa2ffdbec virtio-gpu: support context init multiple timeline
Venus and later native contexts have their own fence context along with
multiple timelines within. Fences wtih VIRTIO_GPU_FLAG_INFO_RING_IDX in
the flags must be dispatched to be created on the target context. Fence
signaling also has to be handled on the specific timeline within that
target context.

Before this change, venus fencing is completely broken if the host
driver doesn't support implicit fencing with external memory objects.
Frames can go backwards along with random artifacts on screen if the
host driver doesn't attach an implicit fence to the render target. The
symptom could be hidden by certain guest wsi backend that waits on a
venus native VkFence object for the actual payload with limited present
modes or under special configs. e.g. x11 mailbox or xwayland.

After this change, everything related to venus fencing starts making
sense. Confirmed this via guest and host side perfetto tracing.

Cc: qemu-stable@nongnu.org
Fixes: 94d0ea1c19 ("virtio-gpu: Support Venus context")
Signed-off-by: Yiwei Zhang <zzyiwei@gmail.com>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Message-Id: <20250518152651.334115-1-zzyiwei@gmail.com>
[AJB: remove version history from commit message]
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Message-ID: <20250627112512.1880708-16-alex.bennee@linaro.org>
2025-07-02 10:10:07 +01:00
Alex Bennée
2882dfa57f MAINTAINERS: add Akihiko and Dmitry as reviewers
Thanks for volunteering to help.

Cc: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Cc: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20250603110204.838117-9-alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-15-alex.bennee@linaro.org>
2025-07-02 10:09:48 +01:00
Alex Bennée
ef10cb656c MAINTAINERS: add myself to virtio-gpu for Odd Fixes
Seeing as I've taken a few patches to here now I might as well put
myself forward to maintain virtio-gpu. I've marked it as Odd Fixes as
it is not my core focus. If someone with more GPU experience comes
forward we can always update again.

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20250603110204.838117-8-alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-14-alex.bennee@linaro.org>
2025-07-02 10:09:48 +01:00
Rowan Hart
137d2f947f plugins: Update plugin version and add notes
This patch updates the plugin version to gate new APIs and adds notes
describing what has been added.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Message-ID: <20250624175351.440780-9-rowanbhart@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-13-alex.bennee@linaro.org>
2025-07-02 10:09:48 +01:00
Rowan Hart
71d3379438 plugins: Add patcher plugin and test
This patch adds a plugin that exercises the virtual and hardware memory
read-write API functions added in a previous patch. The plugin takes a
target and patch byte sequence, and will overwrite any instruction
matching the target byte sequence with the patch.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Message-ID: <20250624175351.440780-8-rowanbhart@gmail.com>
[AJB: tweak Makefile, use uintptr_t for pointer stuffing]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-12-alex.bennee@linaro.org>
2025-07-02 10:09:48 +01:00
Rowan Hart
5ea2abf07c tests/tcg: Remove copy-pasted notes and from i386 and add x86_64 system tests to tests
The x86_64-softmmu Makefile seems to have been copy-pasted from the i386
Makefile at some point in the past. Cleaning up a vestigial unused
variable and removing some outdated comments.

Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Message-ID: <20250624175351.440780-7-rowanbhart@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-11-alex.bennee@linaro.org>
2025-07-02 10:09:48 +01:00
Rowan Hart
30424b8d42 plugins: Add memory hardware address read/write API
This patch adds functions to the plugins API to allow plugins to read
and write memory via hardware addresses. The functions use the current
address space of the current CPU in order to avoid exposing address
space information to users. A later patch may want to add a function to
permit a specified address space, for example to facilitate
architecture-specific plugins that want to operate on them, for example
reading ARM secure memory.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Message-ID: <20250624175351.440780-6-rowanbhart@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-10-alex.bennee@linaro.org>
2025-07-02 10:09:48 +01:00
Rowan Hart
f00373b895 plugins: Add memory virtual address write API
This patch adds functions to the plugins API to allow reading and
writing memory via virtual addresses. These functions only permit doing
so on the current CPU, because there is no way to ensure consistency if
plugins are allowed to read or write to other CPUs that aren't currently
in the context of the plugin.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Message-ID: <20250624175351.440780-5-rowanbhart@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-9-alex.bennee@linaro.org>
2025-07-02 10:09:48 +01:00
Rowan Hart
766e00bd57 plugins: Add enforcement of QEMU_PLUGIN_CB flags in register R/W callbacks
This patch adds functionality to enforce the requested QEMU_PLUGIN_CB_
flags level passed when registering a callback function using the
plugins API. Each time a callback is about to be invoked, a thread-local
variable will be updated with the level that callback requested. Then,
called API functions (in particular, the register read and write API)
will call qemu_plugin_get_cb_flags() to check the level is at least the
level they require.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Message-ID: <20250624175351.440780-4-rowanbhart@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-8-alex.bennee@linaro.org>
2025-07-02 10:09:48 +01:00
Rowan Hart
1a92b65859 plugins: Add register write API
This patch adds a function to the plugins API to allow plugins to write
register contents. It also moves the qemu_plugin_read_register function
so all the register-related functions are grouped together in the file.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Message-ID: <20250624175351.440780-3-rowanbhart@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-7-alex.bennee@linaro.org>
2025-07-02 10:09:48 +01:00
Rowan Hart
1bb6403a34 gdbstub: Expose gdb_write_register function to consumers of gdbstub
This patch exposes the gdb_write_register function from
gdbstub/gdbstub.c via the exec/gdbstub.h header file to support use in
plugins to write register contents.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Julian Ganz <neither@nut.email>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Rowan Hart <rowanbhart@gmail.com>
Message-ID: <20250624175351.440780-2-rowanbhart@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250627112512.1880708-6-alex.bennee@linaro.org>
2025-07-02 10:09:48 +01:00