qemu.git
8 months agoRevert "hw/ppc/spapr_pci: Do not reject VFs created after a PF"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:47 +0000 (03:44 -0400)]
Revert "hw/ppc/spapr_pci: Do not reject VFs created after a PF"

This reverts commit 26f86093ec989cb73ad03e8a234f5dc321e1e267.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "pcie_sriov: Do not manually unrealize"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:45 +0000 (03:44 -0400)]
Revert "pcie_sriov: Do not manually unrealize"

This reverts commit c613ad25125bf3016aa8f81ce170f5ac91d2379f.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "pcie_sriov: Ensure VF function number does not overflow"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:43 +0000 (03:44 -0400)]
Revert "pcie_sriov: Ensure VF function number does not overflow"

This reverts commit 77718701157f6ca77ea7a57b536fa0a22f676082.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "pcie_sriov: Reuse SR-IOV VF device instances"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:42 +0000 (03:44 -0400)]
Revert "pcie_sriov: Reuse SR-IOV VF device instances"

This reverts commit 139610ae67f6ecf92127bb7bf53ac6265b459ec8.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "pcie_sriov: Release VFs failed to realize"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:41 +0000 (03:44 -0400)]
Revert "pcie_sriov: Release VFs failed to realize"

This reverts commit 1a9bf009012e590cb166a4a9bae4bc18fb084d76.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "pcie_sriov: Remove num_vfs from PCIESriovPF"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:41 +0000 (03:44 -0400)]
Revert "pcie_sriov: Remove num_vfs from PCIESriovPF"

This reverts commit cbd9e5120bac3e292eee77b7a2e3692f235a1a26.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "pcie_sriov: Register VFs after migration"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:38 +0000 (03:44 -0400)]
Revert "pcie_sriov: Register VFs after migration"

This reverts commit 107a64b9a360cf5ca046852bc03334f7a9f22aef.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "hw/pci: Fix SR-IOV VF number calculation"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:22 +0000 (03:44 -0400)]
Revert "hw/pci: Fix SR-IOV VF number calculation"

This reverts commit ca6dd3aef8a103138c99788bcba8195d4905ddc5.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "pcie_sriov: Ensure PF and VF are mutually exclusive"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:21 +0000 (03:44 -0400)]
Revert "pcie_sriov: Ensure PF and VF are mutually exclusive"

This reverts commit 78f9d7fd1989311040beff54979bcb2a1ba0aff2.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "pcie_sriov: Check PCI Express for SR-IOV PF"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:20 +0000 (03:44 -0400)]
Revert "pcie_sriov: Check PCI Express for SR-IOV PF"

This reverts commit 47cc753e50076c25334091783738be9f716253b1.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "pcie_sriov: Allow user to create SR-IOV device"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:19 +0000 (03:44 -0400)]
Revert "pcie_sriov: Allow user to create SR-IOV device"

This reverts commit 122173a5830f7757f8a94a3b1559582f312e140b.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "virtio-pci: Implement SR-IOV PF"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:18 +0000 (03:44 -0400)]
Revert "virtio-pci: Implement SR-IOV PF"

This reverts commit 3f868ffb0bae0c4feafabe34a371cded57fe3806.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "virtio-net: Implement SR-IOV VF"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:17 +0000 (03:44 -0400)]
Revert "virtio-net: Implement SR-IOV VF"

This reverts commit c2d6db6a1f39780b24538440091893f9fbe060a7.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agoRevert "docs: Document composable SR-IOV device"
Michael S. Tsirkin [Thu, 1 Aug 2024 07:44:16 +0000 (03:44 -0400)]
Revert "docs: Document composable SR-IOV device"

This reverts commit d6f40c95b35bd380340b698e4306704fe22a5d68.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 months agovirtio-rng: block max-bytes=0
Michael S. Tsirkin [Wed, 24 Jul 2024 10:48:59 +0000 (06:48 -0400)]
virtio-rng: block max-bytes=0

with max-bytes set to 0, quota is 0 and so device does not work.
block this to avoid user confusion

Message-Id: <73a89a42d82ec8b47358f25119b87063e4a6ea57.1721818306.git.mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
8 months agoMerge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
Richard Henderson [Wed, 31 Jul 2024 21:31:49 +0000 (07:31 +1000)]
Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* target/i386: qemu-vmsr-helper fixes
* target/i386: mask off SGX/SGX_LC feature words for non-PC machine
* tests/vm/openbsd: Install tomli
* fix issue with 64-bit features (vmx kvm-unit-tests)

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# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  qemu-vmsr-helper: implement --verbose/-v
  qemu-vmsr-helper: fix socket loop breakage
  target/i386: Clean up error cases for vmsr_read_thread_stat()
  target/i386: Fix typo that assign same value twice
  target/i386/cpu: Mask off SGX/SGX_LC feature words for non-PC machine
  target/i386/cpu: Add dependencies of CPUID 0x12 leaves
  target/i386/cpu: Explicitly express SGX_LC and SGX feature words dependency
  target/i386/cpu: Remove unnecessary SGX feature words checks
  target/i386: Change unavail from u32 to u64
  tests/vm/openbsd: Install tomli

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agoqemu-vmsr-helper: implement --verbose/-v
Paolo Bonzini [Tue, 30 Jul 2024 16:00:01 +0000 (18:00 +0200)]
qemu-vmsr-helper: implement --verbose/-v

Similar to qemu-pr-helper, do not print errors from the socket handling loop
unless a --verbose or -v option is provided explicitly on the command line.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 months agoqemu-vmsr-helper: fix socket loop breakage
Paolo Bonzini [Tue, 30 Jul 2024 15:55:37 +0000 (17:55 +0200)]
qemu-vmsr-helper: fix socket loop breakage

Between v5 and v6 of the series, the socket loop of qemu-vmsr-helper was changed to
allow sending multiple requests on the same socket.  Unfortunately, the condition
of the while loop is botched and the loop will never be entered.  Clean it up, and
also unify the handling of error reporting.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 months agotarget/i386: Clean up error cases for vmsr_read_thread_stat()
Anthony Harivel [Fri, 26 Jul 2024 10:26:32 +0000 (12:26 +0200)]
target/i386: Clean up error cases for vmsr_read_thread_stat()

Fix leaking memory of file handle in case of error
Erase unused "pid = -1"
Add clearer error_report

Should fix Coverity CID 1558557.

Signed-off-by: Anthony Harivel <aharivel@redhat.com>
Link: https://lore.kernel.org/r/20240726102632.1324432-3-aharivel@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 months agotarget/i386: Fix typo that assign same value twice
Anthony Harivel [Fri, 26 Jul 2024 10:26:31 +0000 (12:26 +0200)]
target/i386: Fix typo that assign same value twice

Should fix: CID 1558553

Signed-off-by: Anthony Harivel <aharivel@redhat.com>
Link: https://lore.kernel.org/r/20240726102632.1324432-2-aharivel@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 months agotarget/i386/cpu: Mask off SGX/SGX_LC feature words for non-PC machine
Zhao Liu [Tue, 30 Jul 2024 04:55:44 +0000 (12:55 +0800)]
target/i386/cpu: Mask off SGX/SGX_LC feature words for non-PC machine

Only PC machine supports SGX, so mask off SGX related feature words for
non-PC machine (microvm).

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20240730045544.2516284-5-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 months agotarget/i386/cpu: Add dependencies of CPUID 0x12 leaves
Zhao Liu [Tue, 30 Jul 2024 04:55:43 +0000 (12:55 +0800)]
target/i386/cpu: Add dependencies of CPUID 0x12 leaves

As SDM stated, CPUID 0x12 leaves depend on CPUID_7_0_EBX_SGX (SGX
feature word).

Since FEAT_SGX_12_0_EAX, FEAT_SGX_12_0_EBX and FEAT_SGX_12_1_EAX define
multiple feature words, add the dependencies of those registers to
report the warning to user if SGX is absent.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20240730045544.2516284-4-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 months agotarget/i386/cpu: Explicitly express SGX_LC and SGX feature words dependency
Zhao Liu [Tue, 30 Jul 2024 04:55:42 +0000 (12:55 +0800)]
target/i386/cpu: Explicitly express SGX_LC and SGX feature words dependency

At present, cpu_x86_cpuid() silently masks off SGX_LC if SGX is absent.

This is not proper because the user is not told about the dependency
between the two.

So explicitly define the dependency between SGX_LC and SGX feature
words, so that user could get a warning when SGX_LC is enabled but
SGX is absent.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20240730045544.2516284-3-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 months agotarget/i386/cpu: Remove unnecessary SGX feature words checks
Zhao Liu [Tue, 30 Jul 2024 04:55:41 +0000 (12:55 +0800)]
target/i386/cpu: Remove unnecessary SGX feature words checks

CPUID.0x7.0.ebx and CPUID.0x7.0.ecx leaves have been expressed as the
feature word lists, and the Host capability support has been checked
in x86_cpu_filter_features().

Therefore, such checks on SGX feature "words" are redundant, and
the follow-up adjustments to those feature "words" will not actually
take effect.

Remove unnecessary SGX feature words related checks.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20240730045544.2516284-2-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 months agotarget/i386: Change unavail from u32 to u64
Xiong Zhang [Tue, 30 Jul 2024 08:29:27 +0000 (16:29 +0800)]
target/i386: Change unavail from u32 to u64

The feature word 'r' is a u64, and "unavail" is a u32, the operation
'r &= ~unavail' clears the high 32 bits of 'r'. This causes many vmx cases
in kvm-unit-tests to fail. Changing 'unavail' from u32 to u64 fixes this
issue.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2442
Fixes: 0b2757412cb1 ("target/i386: drop AMD machine check bits from Intel CPUID")
Signed-off-by: Xiong Zhang <xiong.y.zhang@linux.intel.com>
Link: https://lore.kernel.org/r/20240730082927.250180-1-xiong.y.zhang@linux.intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 months agotests/vm/openbsd: Install tomli
Richard Henderson [Mon, 29 Jul 2024 05:12:44 +0000 (15:12 +1000)]
tests/vm/openbsd: Install tomli

OpenBSD still defaults to python 3.10, therefore tomli is now required by configure.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Link: https://lore.kernel.org/r/20240729051244.436851-1-richard.henderson@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 months agoUpdate version for v9.1.0-rc0 release
Richard Henderson [Wed, 31 Jul 2024 06:21:21 +0000 (16:21 +1000)]
Update version for v9.1.0-rc0 release

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agoMerge tag 'docs-testing-20240731' of https://github.com/philmd/qemu into staging
Richard Henderson [Wed, 31 Jul 2024 01:19:55 +0000 (11:19 +1000)]
Merge tag 'docs-testing-20240731' of https://github.com/philmd/qemu into staging

Docs & testing patch queue

- Test QAPI firmware.json schema (Thomas)
- Handle new env.doc2path() return value (Peter)
- Improve how assets are used by some Avocado tests (Cleber)
- Remove obsolete check for macOS 10 (Peter)

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# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]

* tag 'docs-testing-20240731' of https://github.com/philmd/qemu:
  osdep.h: Clean up no-longer-needed back-compat for macOS 10
  tests/avocado: test_arm_emcraft_sf2: handle RW requirements for asset
  tests/avocado: mips: add hint for fetchasset plugin
  tests/avocado: mips: fallback to HTTP given certificate expiration
  docs/sphinx/depfile.py: Handle env.doc2path() returning a Path not a str
  docs: add test for firmware.json QAPI

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agoMerge tag 'pull-maintainer-9.1-rc1-300724-1' of https://gitlab.com/stsquad/qemu into...
Richard Henderson [Wed, 31 Jul 2024 01:19:32 +0000 (11:19 +1000)]
Merge tag 'pull-maintainer-9.1-rc1-300724-1' of https://gitlab.com/stsquad/qemu into staging

Minor bug fixes and documentation cleanups:

  - display packages in CI builds to catch changes
  - stop compiler complaining about exec stacks in test cases
  - stop loongarch compiler complaining about rwx in test cases
  - improve docs on running TCG tests
  - remove old unneeded avocado test for memory callback testing
  - move test plugins into tcg testing dir
  - clean-up and move plugin documentation to emulation section
  - remove dead code from cache modelling plugin
  - add compatibility workaround for lockstep plugin
  - make some noise when building contrib plugins

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# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]

* tag 'pull-maintainer-9.1-rc1-300724-1' of https://gitlab.com/stsquad/qemu:
  plugin/loader: handle basic help query
  contrib/plugins: add compat for g_memdup2
  contrib/plugins: be more vocal building
  contrib/plugins/cache.c: Remove redundant check of l2_access
  docs: split TCG plugin usage from devel section
  tests/tcg: move test plugins into tcg subdir
  tests/avocado: remove tcg_plugins virt_mem_icount test
  docs/devel: document how to run individual TCG tests
  docs/devel: update the testing introduction
  tests/tcg: update README
  tests/tcg/loongarch64: Use --no-warn-rwx-segments to link system tests
  tests/tcg: Use --noexecstack with assembler files
  gitlab: display /packages.txt in build jobs
  gitlab: record installed packages in /packages.txt in containers

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agoosdep.h: Clean up no-longer-needed back-compat for macOS 10
Peter Maydell [Tue, 30 Jul 2024 09:59:39 +0000 (10:59 +0100)]
osdep.h: Clean up no-longer-needed back-compat for macOS 10

Our official support policy only supports the most recent two
versions of macOS (currently macOS 13 Ventura and macOS 14 Sonoma),
and we already have code that assumes at least macOS 12 Monterey or
better.  In commit 2d27c91e2b72ac7 we dropped some of the back-compat
code for older macOS versions, but missed the guard in osdep.h that
is providing a fallback for macOS 10 and earlier.

Simplify the ifdef to the "ifdef __APPLE__" that we use elsewhere for
"is this macOS?".

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240730095939.2781172-1-peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
8 months agotests/avocado: test_arm_emcraft_sf2: handle RW requirements for asset
Cleber Rosa [Fri, 26 Jul 2024 13:44:33 +0000 (09:44 -0400)]
tests/avocado: test_arm_emcraft_sf2: handle RW requirements for asset

The asset used in the mentioned test gets truncated before it's used
in the test.  This means that the file gets modified, and thus the
asset's expected hash doesn't match anymore.  This causes cache misses
and re-downloads every time the test is re-run.

Let's make a copy of the asset so that the one in the cache is
preserved and the cache sees a hit on re-runs.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20240726134438.14720-9-crosa@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
8 months agotests/avocado: mips: add hint for fetchasset plugin
Cleber Rosa [Fri, 26 Jul 2024 13:44:27 +0000 (09:44 -0400)]
tests/avocado: mips: add hint for fetchasset plugin

Avocado's fetchasset plugin runs before the actual Avocado job (and
any test).  It analyses the test's code looking for occurrences of
"self.fetch_asset()" in the either the actual test or setUp() method.
It's not able to fully analyze all code, though.

The way these tests are written, make the fetchasset plugin blind to
the assets.  This adds some more code duplication, true, but it will
aid the fetchasset plugin to download or verify the existence of these
assets in advance.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240726134438.14720-3-crosa@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
8 months agotests/avocado: mips: fallback to HTTP given certificate expiration
Cleber Rosa [Fri, 26 Jul 2024 13:44:26 +0000 (09:44 -0400)]
tests/avocado: mips: fallback to HTTP given certificate expiration

The SSL certificate installed at mipsdistros.mips.com has expired:

 0 s:CN = mipsdistros.mips.com
 i:C = US, O = Amazon, OU = Server CA 1B, CN = Amazon
 a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
 v:NotBefore: Dec 23 00:00:00 2019 GMT; NotAfter: Jan 23 12:00:00 2021 GMT

Because this project has no control over that certificate and host,
this falls back to plain HTTP instead.  The integrity of the
downloaded files can be guaranteed by the existing hashes for those
files (which are not modified here).

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240726134438.14720-2-crosa@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
8 months agodocs/sphinx/depfile.py: Handle env.doc2path() returning a Path not a str
Peter Maydell [Mon, 29 Jul 2024 12:05:33 +0000 (13:05 +0100)]
docs/sphinx/depfile.py: Handle env.doc2path() returning a Path not a str

In newer versions of Sphinx the env.doc2path() API is going to change
to return a Path object rather than a str. This was originally visible
in Sphinx 8.0.0rc1, but has been rolled back for the final 8.0.0
release. However it will probably emit a deprecation warning and is
likely to change for good in 9.0:
  https://github.com/sphinx-doc/sphinx/issues/12686

Our use in depfile.py assumes a str, and if it is passed a Path
it will fall over:
 Handler <function write_depfile at 0x77a1775ff560> for event 'build-finished' threw an exception (exception: unsupported operand type(s) for +: 'PosixPath' and 'str')

Wrapping the env.doc2path() call in str() will coerce a Path object
to the str we expect, and have no effect in older Sphinx versions
that do return a str.

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2458
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240729120533.2486427-1-peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
8 months agodocs: add test for firmware.json QAPI
Thomas Weißschuh [Wed, 24 Jul 2024 12:45:53 +0000 (14:45 +0200)]
docs: add test for firmware.json QAPI

To make sure that the QAPI description stays valid, add a testcase.

Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Link: https://lore.kernel.org/qemu-devel/d9ce0234-4beb-4b90-b14c-76810d3b81d7@linaro.org/
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240724-qapi-firmware-json-v7-1-12341f7e362d@linutronix.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
8 months agoMerge tag 'pull-target-arm-20240730' of https://git.linaro.org/people/pmaydell/qemu...
Richard Henderson [Tue, 30 Jul 2024 12:25:37 +0000 (22:25 +1000)]
Merge tag 'pull-target-arm-20240730' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * hw/char/bcm2835_aux: Fix assert when receive FIFO fills up
 * hw/arm/smmuv3: Assert input to oas2bits() is valid
 * target/arm/kvm: Set PMU for host only when available
 * target/arm/kvm: Do not silently remove PMU
 * hvf: arm: Properly disable PMU
 * hvf: arm: Do not advance PC when raising an exception
 * hw/misc/bcm2835_property: several minor bugfixes
 * target/arm: Don't assert for 128-bit tile accesses when SVL is 128
 * target/arm: Fix UMOPA/UMOPS of 16-bit values
 * target/arm: Ignore SMCR_EL2.LEN and SVCR_EL2.LEN if EL2 is not enabled
 * system/physmem: Where we assume we have a RAM MR, assert it
 * sh4, i386, m68k, xtensa, tricore, arm: fix minor Coverity issues

# -----BEGIN PGP SIGNATURE-----
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# +oME+fRoBHj1DUw4qasWsg==
# =NNxN
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 30 Jul 2024 07:39:12 PM AEST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [unknown]

* tag 'pull-target-arm-20240730' of https://git.linaro.org/people/pmaydell/qemu-arm: (21 commits)
  system/physmem: Where we assume we have a RAM MR, assert it
  target/sh4: Avoid shift into sign bit in update_itlb_use()
  target/i386: Remove dead assignment to ss in do_interrupt64()
  target/m68k: avoid shift into sign bit in dump_address_map()
  target/xtensa: Make use of 'segment' in pptlb helper less confusing
  target/tricore: Use unsigned types for bitops in helper_eq_b()
  target/arm: Ignore SMCR_EL2.LEN and SVCR_EL2.LEN if EL2 is not enabled
  target/arm: Avoid shifts by -1 in tszimm_shr() and tszimm_shl()
  target/arm: Fix UMOPA/UMOPS of 16-bit values
  target/arm: Don't assert for 128-bit tile accesses when SVL is 128
  hw/misc/bcm2835_property: Reduce scope of variables in mbox push function
  hw/misc/bcm2835_property: Restrict scope of start_num, number, otp_row
  hw/misc/bcm2835_property: Avoid overflow in OTP access properties
  hw/misc/bcm2835_property: Fix handling of FRAMEBUFFER_SET_PALETTE
  hvf: arm: Do not advance PC when raising an exception
  hvf: arm: Properly disable PMU
  hvf: arm: Raise an exception for sysreg by default
  target/arm/kvm: Do not silently remove PMU
  target/arm/kvm: Set PMU for host only when available
  hw/arm/smmuv3: Assert input to oas2bits() is valid
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agoplugin/loader: handle basic help query
Alex Bennée [Mon, 29 Jul 2024 14:44:14 +0000 (15:44 +0100)]
plugin/loader: handle basic help query

As the list of options isn't fixed we do all the parsing by hand.
Without any named arguments we automatically fill the "file" option
with the value give so check if it is requesting help and dump some
basic usage text.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-15-alex.bennee@linaro.org>

8 months agocontrib/plugins: add compat for g_memdup2
Alex Bennée [Mon, 29 Jul 2024 14:44:13 +0000 (15:44 +0100)]
contrib/plugins: add compat for g_memdup2

We were premature if bumping this because some of our builds are still
on older glibs. Just copy the compat handler for now and we can remove
it later.

Fixes: ee293103b0 (plugins: update lockstep to use g_memdup2)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2161
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-14-alex.bennee@linaro.org>

8 months agocontrib/plugins: be more vocal building
Alex Bennée [Mon, 29 Jul 2024 14:44:12 +0000 (15:44 +0100)]
contrib/plugins: be more vocal building

With the conversion to meson and removing the old QEMU Makefile
baggage we became very silent when building the plugins. Bring in a
copy of the quiet-command logic (and some magic COMMAs) so we can at
least assure developers we are building them.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2457
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-13-alex.bennee@linaro.org>

8 months agocontrib/plugins/cache.c: Remove redundant check of l2_access
Peter Maydell [Mon, 29 Jul 2024 14:44:11 +0000 (15:44 +0100)]
contrib/plugins/cache.c: Remove redundant check of l2_access

In append_stats_line(), we have an expression
   l2_access ? l2_miss_rate : 0.0
But this is inside an if (l2_access && l2_misses) { ... } block,
so Coverity points out that the false part of the ?: is dead code.

Remove the unnecessary test.

Resolves: Coverity CID 1522458
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240725164851.1930964-1-peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-12-alex.bennee@linaro.org>

8 months agodocs: split TCG plugin usage from devel section
Alex Bennée [Mon, 29 Jul 2024 14:44:10 +0000 (15:44 +0100)]
docs: split TCG plugin usage from devel section

The devel section is getting quite messy with the breakdown of the
example plugins which should be usable by users. As we mention plugins
in the emulation section along with semihosting move the overview
there leaving the development section about the details of writing
plugins.

While we are at make the headings nicer and convert the option lists
into nicely formatted tables.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-11-alex.bennee@linaro.org>

8 months agotests/tcg: move test plugins into tcg subdir
Alex Bennée [Mon, 29 Jul 2024 14:44:09 +0000 (15:44 +0100)]
tests/tcg: move test plugins into tcg subdir

You cannot use plugins without TCG enabled so it doesn't make sense to
have them separated off in the test directory structure. While we are
at it rename the directory to plugins to reflect the plural nature of
the directory and match up with contrib/plugins.

Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-10-alex.bennee@linaro.org>

8 months agotests/avocado: remove tcg_plugins virt_mem_icount test
Alex Bennée [Mon, 29 Jul 2024 14:44:08 +0000 (15:44 +0100)]
tests/avocado: remove tcg_plugins virt_mem_icount test

Since 4f8d886085 (tests/plugin/mem: migrate to new per_vcpu API) this
test was skipping due to not being able to run callback and inline
memory instrumentation at the same time.

However b480f7a621 (tests/plugin: add test plugin for inline
operations) tests for all this matching up so we don't need the
additional complexity in avocado.

Remove the test.

Fixes: 4f8d886085
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-9-alex.bennee@linaro.org>

8 months agodocs/devel: document how to run individual TCG tests
Alex Bennée [Mon, 29 Jul 2024 14:44:07 +0000 (15:44 +0100)]
docs/devel: document how to run individual TCG tests

Since 6f6ca067d2 (tests/tcg: add some help output for running
individual tests) we made it easier to run individual tests for a
given architecture. Lets reference that in the developer
documentation.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-8-alex.bennee@linaro.org>

8 months agodocs/devel: update the testing introduction
Alex Bennée [Mon, 29 Jul 2024 14:44:06 +0000 (15:44 +0100)]
docs/devel: update the testing introduction

Move the mention of "check-help" up to the intro text and also mention
the meson test integration.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-7-alex.bennee@linaro.org>

8 months agotests/tcg: update README
Alex Bennée [Mon, 29 Jul 2024 14:44:05 +0000 (15:44 +0100)]
tests/tcg: update README

Update the document with details about the layout of tests. Remove the
out of date cris comments. Refer to the developer guide for details
about how to run the tests.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-6-alex.bennee@linaro.org>

8 months agotests/tcg/loongarch64: Use --no-warn-rwx-segments to link system tests
Richard Henderson [Mon, 29 Jul 2024 14:44:04 +0000 (15:44 +0100)]
tests/tcg/loongarch64: Use --no-warn-rwx-segments to link system tests

Recent debian cross-linker for loongarch issues

  ld: warning: hello has a LOAD segment with RWX permissions

This is partially related to tests/tcg/loongarch64/system/kernel.ld,
but is not fixed by explicitly adding a single LOAD PHDR.
Disable the warning, since it does not apply to kernel images.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240724010733.22129-3-richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-5-alex.bennee@linaro.org>

8 months agotests/tcg: Use --noexecstack with assembler files
Richard Henderson [Mon, 29 Jul 2024 14:44:03 +0000 (15:44 +0100)]
tests/tcg: Use --noexecstack with assembler files

Add the --noexecstack assembler command-line option to avoid:

  /usr/bin/ld: warning: boot.o: missing .note.GNU-stack section implies executable stack
  /usr/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker

which is enabled by default with current debian cross toolchains.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240724010733.22129-2-richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-4-alex.bennee@linaro.org>

8 months agogitlab: display /packages.txt in build jobs
Daniel P. Berrangé [Mon, 29 Jul 2024 14:44:02 +0000 (15:44 +0100)]
gitlab: display /packages.txt in build jobs

The lcitool created containers save the full distro package list
details into /packages.txt. The idea is that build jobs will 'cat'
this file, so that the build log has a record of what packages
were used. This is important info, because when it comes to debug
failures, the original container is often lost.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20240724095505.33544-3-berrange@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-3-alex.bennee@linaro.org>

8 months agogitlab: record installed packages in /packages.txt in containers
Daniel P. Berrangé [Mon, 29 Jul 2024 14:44:01 +0000 (15:44 +0100)]
gitlab: record installed packages in /packages.txt in containers

The lcitool created containers save the full distro package list
details into /packages.txt. The idea is that build jobs will 'cat'
this file, so that the build log has a record of what packages
were used. This is important info, because when it comes to debug
failures, the original container is often lost.

This extends the manually written dockerfiles to also create the
/packages.txt file.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20240724095505.33544-2-berrange@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-2-alex.bennee@linaro.org>

8 months agoMerge tag 's390x-20240730' of https://github.com/davidhildenbrand/qemu into staging
Richard Henderson [Tue, 30 Jul 2024 09:21:58 +0000 (19:21 +1000)]
Merge tag 's390x-20240730' of https://github.com/davidhildenbrand/qemu into staging

s390x updates:
- fixup for a s390x-only query-cpu-model-expansion extension

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# gpg:                using RSA key 1BD9CAAD735C4C3A460DFCCA4DDE10F700FF835A
# gpg:                issuer "david@redhat.com"
# gpg: Good signature from "David Hildenbrand <david@redhat.com>" [undefined]
# gpg:                 aka "David Hildenbrand <davidhildenbrand@gmail.com>" [full]
# gpg:                 aka "David Hildenbrand <hildenbr@in.tum.de>" [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: 1BD9 CAAD 735C 4C3A 460D  FCCA 4DDE 10F7 00FF 835A

* tag 's390x-20240730' of https://github.com/davidhildenbrand/qemu:
  target/s390x: move @deprecated-props to CpuModelExpansion Info

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agoMerge tag 'pull-misc-20240730' of https://gitlab.com/rth7680/qemu into staging
Richard Henderson [Tue, 30 Jul 2024 01:12:42 +0000 (11:12 +1000)]
Merge tag 'pull-misc-20240730' of https://gitlab.com/rth7680/qemu into staging

util/getauxval: Ensure setting errno if not found
util/getauxval: Use elf_aux_info on OpenBSD
linux-user: open_self_stat: Implement num_threads
target/rx: Use target_ulong for address in LI

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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-misc-20240730' of https://gitlab.com/rth7680/qemu:
  linux-user: open_self_stat: Implement num_threads
  util/cpuinfo: Make use of elf_aux_info(3) on OpenBSD
  linux-user/main: Check errno when getting AT_EXECFD
  util/getauxval: Ensure setting errno if not found
  target/rx: Use target_ulong for address in LI

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agolinux-user: open_self_stat: Implement num_threads
Fabio D'Urso [Wed, 19 Jun 2024 19:41:09 +0000 (21:41 +0200)]
linux-user: open_self_stat: Implement num_threads

The num_threads field reports the total number of threads in the
process. In QEMU, this is equal to the number of CPU instances.

Signed-off-by: Fabio D'Urso <fdurso@google.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20240619194109.248066-1-fdurso@google.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agoutil/cpuinfo: Make use of elf_aux_info(3) on OpenBSD
Brad Smith [Sun, 28 Jul 2024 03:58:55 +0000 (23:58 -0400)]
util/cpuinfo: Make use of elf_aux_info(3) on OpenBSD

Signed-off-by: Brad Smith <brad@comstyle.com>
Message-ID: <ZqXB_zz0fR1CpA7k@humpty.home.comstyle.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agolinux-user/main: Check errno when getting AT_EXECFD
Vivian Wang [Tue, 23 Jul 2024 10:05:45 +0000 (18:05 +0800)]
linux-user/main: Check errno when getting AT_EXECFD

It's possible for AT_EXECFD to end up with a valid value of 0. Check
errno when using qemu_getauxval instead of return value to handle this
case.

Not handling this case leads to a confusing condition where the
executable ends up as fd 0, i.e. stdin.

Signed-off-by: Vivian Wang <uwu@dram.page>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Fixes: 0b959cf5e4cc ("linux-user: Use qemu_getauxval for AT_EXECFD")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2448
Message-ID: <20240723100545.405476-3-uwu@dram.page>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agoutil/getauxval: Ensure setting errno if not found
Vivian Wang [Tue, 23 Jul 2024 10:05:44 +0000 (18:05 +0800)]
util/getauxval: Ensure setting errno if not found

Sometimes zero is a valid value for getauxval (e.g. AT_EXECFD). Make
sure that we can distinguish between a valid zero value and a not found
entry by setting errno.

Assumes that getauxval from sys/auxv.h sets errno correctly.

Signed-off-by: Vivian Wang <uwu@dram.page>
Message-ID: <20240723100545.405476-2-uwu@dram.page>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agoMerge tag 'pull-qapi-2024-07-29' of https://repo.or.cz/qemu/armbru into staging
Richard Henderson [Mon, 29 Jul 2024 21:33:19 +0000 (07:33 +1000)]
Merge tag 'pull-qapi-2024-07-29' of https://repo.or.cz/qemu/armbru into staging

QAPI patches patches for 2024-07-29

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# gpg: Signature made Mon 29 Jul 2024 03:30:20 PM AEST
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]

* tag 'pull-qapi-2024-07-29' of https://repo.or.cz/qemu/armbru:
  qapi/machine: Belatedly document target loongarch64 is since 7.1
  qapi/qom: make some QOM properties depend on the build settings

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agotarget/s390x: move @deprecated-props to CpuModelExpansion Info
Collin Walling [Fri, 26 Jul 2024 20:36:46 +0000 (16:36 -0400)]
target/s390x: move @deprecated-props to CpuModelExpansion Info

CpuModelInfo is used both as command argument and in command
returns.

Its @deprecated-props array does not make any sense in arguments,
and is silently ignored.  We actually want it only as return value
of query-cpu-model-expansion.

Move it from CpuModelInfo to CpuModelExpansionType, and document
its dependence on expansion type property.

This was identified late during review [1] and we have to fix it up
while it's not part of an official QEMU release yet.

[1] https://lore.kernel.org/qemu-devel/20240719181741.35146-1-walling@linux.ibm.com/

Message-ID: <20240726203646.20279-1-walling@linux.ibm.com>
Fixes: eed0e8ffa38f ("target/s390x: filter deprecated properties based on model expansion type")
Signed-off-by: Collin Walling <walling@linux.ibm.com>
[ david: - add "Fixes", adjust description, reference v3 instead
         - make property s390x-only and non-optional
         - fixup "populate" vs. "populated" ]
Signed-off-by: David Hildenbrand <david@redhat.com>
8 months agosystem/physmem: Where we assume we have a RAM MR, assert it
Peter Maydell [Tue, 23 Jul 2024 17:05:13 +0000 (18:05 +0100)]
system/physmem: Where we assume we have a RAM MR, assert it

In the functions invalidate_and_set_dirty() and
cpu_physical_memory_snapshot_and_clear_dirty(), we assume that we
are dealing with RAM memory regions. In this case we know that
memory_region_get_ram_addr() will succeed. Assert this before we
use the returned ram_addr_t in arithmetic.

This makes Coverity happier about these functions: it otherwise
complains that we might have an arithmetic overflow that stems
from the possible -1 return from memory_region_get_ram_addr().

Resolves: Coverity CID 15476291547715

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-id: 20240723170513.1676453-1-peter.maydell@linaro.org

8 months agotarget/sh4: Avoid shift into sign bit in update_itlb_use()
Peter Maydell [Tue, 23 Jul 2024 17:24:31 +0000 (18:24 +0100)]
target/sh4: Avoid shift into sign bit in update_itlb_use()

In update_itlb_use() the variables or_mask and and_mask are uint8_t,
which means that in expressions like "and_mask << 24" the usual C
arithmetic conversions will result in the shift being done as a
signed int type, and so we will shift into the sign bit. For QEMU
this isn't undefined behaviour because we use -fwrapv; but we can
avoid it anyway by using uint32_t types for or_mask and and_mask.

Resolves: Coverity CID 1547628
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Message-id: 20240723172431.1757296-1-peter.maydell@linaro.org

8 months agotarget/i386: Remove dead assignment to ss in do_interrupt64()
Peter Maydell [Tue, 23 Jul 2024 16:25:25 +0000 (17:25 +0100)]
target/i386: Remove dead assignment to ss in do_interrupt64()

Coverity points out that in do_interrupt64() in the "to inner
privilege" codepath we set "ss = 0", but because we also set
"new_stack = 1" there, later in the function we will always override
that value of ss with "ss = 0 | dpl".

Remove the unnecessary initialization of ss, which allows us to
reduce the scope of the variable to only where it is used.  Borrow a
comment from helper_lcall_protected() that explains what "0 | dpl"
means here.

Resolves: Coverity CID 1527395
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: 20240723162525.1585743-1-peter.maydell@linaro.org

8 months agotarget/m68k: avoid shift into sign bit in dump_address_map()
Peter Maydell [Tue, 23 Jul 2024 15:42:07 +0000 (16:42 +0100)]
target/m68k: avoid shift into sign bit in dump_address_map()

Coverity complains (CID 1547592) that in dump_address_map() we take a
value stored in a signed integer variable 'i' and shift it by enough
to shift into the sign bit when we construct the value 'logical'.
This isn't a bug for QEMU because we use -fwrapv semantics, but
we can make Coverity happy by using an unsigned type for the loop
variables i, j, k in this function.

While we're changing the declaration of the variables, put them
in the for() loops so their scope is the minimum required (a style
now permitted by our coding style guide).

Resolves: Coverity CID 1547592
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723154207.1483665-1-peter.maydell@linaro.org

8 months agotarget/xtensa: Make use of 'segment' in pptlb helper less confusing
Peter Maydell [Tue, 23 Jul 2024 15:14:54 +0000 (16:14 +0100)]
target/xtensa: Make use of 'segment' in pptlb helper less confusing

Coverity gets confused about the use of the 'segment' variable in the
pptlb helper function: it thinks that we can take a code path where
we first initialize it:
  unsigned segment = XTENSA_MPU_PROBE_B;  // 0x40000000
and then use that value as a shift count:
  } else if (nhits == 1 && (env->sregs[MPUENB] & (1u << segment))) {

In fact this isn't possible, beacuse xtensa_mpu_lookup() is passed
'&segment', and it uses that as an output value, which it will always
set if it returns nonzero.  But the way the code is currently written
is confusing to a human reader as well as to Coverity.

Instead of initializing 'segment' at the top of the function with a
value that's only used in the "nhits == 0" code path, use the
constant value directly in that code path, and don't initialize
segment.  This matches the way we use xtensa_mpu_lookup() in its
other callsites in get_physical_addr_mpu().

Resolves: Coverity CID 1547589

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Message-id: 20240723151454.1396826-1-peter.maydell@linaro.org

8 months agotarget/tricore: Use unsigned types for bitops in helper_eq_b()
Peter Maydell [Tue, 23 Jul 2024 15:10:42 +0000 (16:10 +0100)]
target/tricore: Use unsigned types for bitops in helper_eq_b()

Coverity points out that in helper_eq_b() we have an int32_t 'msk'
and we end up shifting into its sign bit. This is OK for QEMU because
we use -fwrapv to give this well defined semantics, but when you look
at what this function is doing it's doing bit operations, so we
should be using an unsigned variable anyway. This also matches the
return type of the function.

Make 'ret' and 'msk' uint32_t.

Resolves: Coverity CID 1547758
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240723151042.1396610-1-peter.maydell@linaro.org

8 months agotarget/arm: Ignore SMCR_EL2.LEN and SVCR_EL2.LEN if EL2 is not enabled
Peter Maydell [Mon, 22 Jul 2024 17:29:57 +0000 (18:29 +0100)]
target/arm: Ignore SMCR_EL2.LEN and SVCR_EL2.LEN if EL2 is not enabled

When determining the current vector length, the SMCR_EL2.LEN and
SVCR_EL2.LEN settings should only be considered if EL2 is enabled
(compare the pseudocode CurrentSVL and CurrentNSVL which call
EL2Enabled()).

We were checking against ARM_FEATURE_EL2 rather than calling
arm_is_el2_enabled(), which meant that we would look at
SMCR_EL2/SVCR_EL2 when in Secure EL1 or Secure EL0 even if Secure EL2
was not enabled.

Use the correct check in sve_vqm1_for_el_sm().

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240722172957.1041231-5-peter.maydell@linaro.org

8 months agotarget/arm: Avoid shifts by -1 in tszimm_shr() and tszimm_shl()
Peter Maydell [Mon, 22 Jul 2024 17:29:56 +0000 (18:29 +0100)]
target/arm: Avoid shifts by -1 in tszimm_shr() and tszimm_shl()

The function tszimm_esz() returns a shift amount, or possibly -1 in
certain cases that correspond to unallocated encodings in the
instruction set.  We catch these later in the trans_ functions
(generally with an "a-esz < 0" check), but before we do the
decodetree-generated code will also call tszimm_shr() or tszimm_sl(),
which will use the tszimm_esz() return value as a shift count without
checking that it is not negative, which is undefined behaviour.

Avoid the UB by checking the return value in tszimm_shr() and
tszimm_shl().

Cc: qemu-stable@nongnu.org
Resolves: Coverity CID 15476171547694
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240722172957.1041231-4-peter.maydell@linaro.org

8 months agotarget/arm: Fix UMOPA/UMOPS of 16-bit values
Peter Maydell [Mon, 22 Jul 2024 17:29:55 +0000 (18:29 +0100)]
target/arm: Fix UMOPA/UMOPS of 16-bit values

The UMOPA/UMOPS instructions are supposed to multiply unsigned 8 or
16 bit elements and accumulate the products into a 64-bit element.
In the Arm ARM pseudocode, this is done with the usual
infinite-precision signed arithmetic.  However our implementation
doesn't quite get it right, because in the DEF_IMOP_64() macro we do:
  sum += (NTYPE)(n >> 0) * (MTYPE)(m >> 0);

where NTYPE and MTYPE are uint16_t or int16_t.  In the uint16_t case,
the C usual arithmetic conversions mean the values are converted to
"int" type and the multiply is done as a 32-bit multiply.  This means
that if the inputs are, for example, 0xffff and 0xffff then the
result is 0xFFFE0001 as an int, which is then promoted to uint64_t
for the accumulation into sum; this promotion incorrectly sign
extends the multiply.

Avoid the incorrect sign extension by casting to int64_t before
the multiply, so we do the multiply as 64-bit signed arithmetic,
which is a type large enough that the multiply can never
overflow into the sign bit.

(The equivalent 8-bit operations in DEF_IMOP_32() are fine, because
the 8-bit multiplies can never overflow into the sign bit of a
32-bit integer.)

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2372
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240722172957.1041231-3-peter.maydell@linaro.org

8 months agotarget/arm: Don't assert for 128-bit tile accesses when SVL is 128
Peter Maydell [Mon, 22 Jul 2024 17:29:54 +0000 (18:29 +0100)]
target/arm: Don't assert for 128-bit tile accesses when SVL is 128

For an instruction which accesses a 128-bit element tile when
the SVL is also 128 (for example MOV z0.Q, p0/M, ZA0H.Q[w0,0]),
we will assert in get_tile_rowcol():

qemu-system-aarch64: ../../tcg/tcg-op.c:926: tcg_gen_deposit_z_i32: Assertion `len > 0' failed.

This happens because we calculate
    len = ctz32(streaming_vec_reg_size(s)) - esz;$
but if the SVL and the element size are the same len is 0, and
the deposit operation asserts.

In this case the ZA storage contains exactly one 128 bit
element ZA tile, and the horizontal or vertical slice is just
that tile. This means that regardless of the index value in
the Ws register, we always access that tile. (In pseudocode terms,
we calculate (index + offset) MOD 1, which is 0.)

Special case the len == 0 case to avoid hitting the assertion
in tcg_gen_deposit_z_i32().

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240722172957.1041231-2-peter.maydell@linaro.org

8 months agohw/misc/bcm2835_property: Reduce scope of variables in mbox push function
Peter Maydell [Tue, 23 Jul 2024 13:10:29 +0000 (14:10 +0100)]
hw/misc/bcm2835_property: Reduce scope of variables in mbox push function

In bcm2835_property_mbox_push(), some variables are defined at function scope
but used only in a smaller scope of the function:
 * tag, bufsize, resplen are used only in the body of the while() loop
 * tmp is used only for RPI_FWREQ_SET_POWER_STATE (and is badly named)

Declare these variables in the scope where they're needed, so the code
is easier to read.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723131029.1159908-5-peter.maydell@linaro.org

8 months agohw/misc/bcm2835_property: Restrict scope of start_num, number, otp_row
Peter Maydell [Tue, 23 Jul 2024 13:10:28 +0000 (14:10 +0100)]
hw/misc/bcm2835_property: Restrict scope of start_num, number, otp_row

In the long function bcm2835_property_mbox_push(), the variables
start_num, number and otp_row are used only in the four cases which
access OTP data, and their uses don't overlap with each other.

Make these variables have scope restricted to the cases where they're
used, so it's easier to read each individual case without having to
cross-refer up to the variable declaration at the top of the function
and check whether the variable is also used later in the loop.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723131029.1159908-4-peter.maydell@linaro.org

8 months agohw/misc/bcm2835_property: Avoid overflow in OTP access properties
Peter Maydell [Tue, 23 Jul 2024 13:10:27 +0000 (14:10 +0100)]
hw/misc/bcm2835_property: Avoid overflow in OTP access properties

Coverity points out that in our handling of the property
RPI_FWREQ_SET_CUSTOMER_OTP we have a potential overflow.  This
happens because we read start_num and number from the guest as
unsigned 32 bit integers, but then the variable 'n' we use as a loop
counter as we iterate from start_num to start_num + number is only an
"int".  That means that if the guest passes us a very large start_num
we will interpret it as negative.  This will result in an assertion
failure inside bcm2835_otp_set_row(), which checks that we didn't
pass it an invalid row number.

A similar issue applies to all the properties for accessing OTP rows
where we are iterating through with a start and length read from the
guest.

Use uint32_t for the loop counter to avoid this problem. Because in
all cases 'n' is only used as a loop counter, we can do this as
part of the for(), restricting its scope to exactly where we need it.

Resolves: Coverity CID 1549401
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723131029.1159908-3-peter.maydell@linaro.org

8 months agohw/misc/bcm2835_property: Fix handling of FRAMEBUFFER_SET_PALETTE
Peter Maydell [Tue, 23 Jul 2024 13:10:26 +0000 (14:10 +0100)]
hw/misc/bcm2835_property: Fix handling of FRAMEBUFFER_SET_PALETTE

The documentation of the "Set palette" mailbox property at
https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface#set-palette
says it has the form:

    Length: 24..1032
    Value:
        u32: offset: first palette index to set (0-255)
        u32: length: number of palette entries to set (1-256)
        u32...: RGBA palette values (offset to offset+length-1)

We get this wrong in a couple of ways:
 * we aren't checking the offset and length are in range, so the guest
   can make us spin for a long time by providing a large length
 * the bounds check on our loop is wrong: we should iterate through
   'length' palette entries, not 'length - offset' entries

Fix the loop to implement the bounds checks and get the loop
condition right. In the process, make the variables local to
this switch case, rather than function-global, so it's clearer
what type they are when reading the code.

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723131029.1159908-2-peter.maydell@linaro.org

8 months agohvf: arm: Do not advance PC when raising an exception
Akihiko Odaki [Sat, 20 Jul 2024 09:30:54 +0000 (18:30 +0900)]
hvf: arm: Do not advance PC when raising an exception

This is identical with commit 30a1690f2402 ("hvf: arm: Do not advance
PC when raising an exception") but for writes instead of reads.

Fixes: a2260983c655 ("hvf: arm: Add support for GICv3")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 months agohvf: arm: Properly disable PMU
Akihiko Odaki [Sat, 20 Jul 2024 09:30:53 +0000 (18:30 +0900)]
hvf: arm: Properly disable PMU

Setting pmu property used to have no effect for hvf so fix it.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 months agohvf: arm: Raise an exception for sysreg by default
Akihiko Odaki [Sat, 20 Jul 2024 09:30:52 +0000 (18:30 +0900)]
hvf: arm: Raise an exception for sysreg by default

Any sysreg access results in an exception unless defined otherwise so
we should raise an exception by default.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 months agotarget/arm/kvm: Do not silently remove PMU
Akihiko Odaki [Sat, 20 Jul 2024 09:30:50 +0000 (18:30 +0900)]
target/arm/kvm: Do not silently remove PMU

kvm_arch_init_vcpu() used to remove PMU when it is not available even
if the CPU model needs one. It is semantically incorrect, and may
continue execution on a misbehaving host that advertises a CPU model
while lacking its PMU. Keep the PMU when the CPU model needs one, and
let kvm_arm_vcpu_init() fail if the KVM implementation mismatches with
our expectation.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 months agotarget/arm/kvm: Set PMU for host only when available
Akihiko Odaki [Sat, 20 Jul 2024 09:30:49 +0000 (18:30 +0900)]
target/arm/kvm: Set PMU for host only when available

target/arm/kvm.c checked PMU availability but unconditionally set the
PMU feature flag for the host CPU model, which is confusing. Set the
feature flag only when available.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 months agohw/arm/smmuv3: Assert input to oas2bits() is valid
Mostafa Saleh [Mon, 29 Jul 2024 12:34:18 +0000 (13:34 +0100)]
hw/arm/smmuv3: Assert input to oas2bits() is valid

Coverity has spotted a possible problem with the OAS handling
(CID 1558464), where the error return of oas2bits() -1 is not
checked, which can cause an overflow in oas value.

oas2bits() is only called with valid inputs, harden the function
to assert that.

Reported-By: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20240722103531.2377348-1-smostafa@google.com
Link: https://lore.kernel.org/qemu-devel/CAFEAcA-H=n-3mHC+eL6YjfL1m+x+b+Fk3mkgZbN74WNxifFVow@mail.gmail.com/
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 months agohw/char/bcm2835_aux: Fix assert when receive FIFO fills up
Frederik van Hövell [Mon, 29 Jul 2024 12:34:18 +0000 (13:34 +0100)]
hw/char/bcm2835_aux: Fix assert when receive FIFO fills up

When a bare-metal application on the raspi3 board reads the
AUX_MU_STAT_REG MMIO register while the device's buffer is
at full receive FIFO capacity
(i.e. `s->read_count == BCM2835_AUX_RX_FIFO_LEN`) the
assertion `assert(s->read_count < BCM2835_AUX_RX_FIFO_LEN)`
fails.

Reported-by: Cryptjar <cryptjar@junk.studio>
Suggested-by: Cryptjar <cryptjar@junk.studio>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/459
Signed-off-by: Frederik van Hövell <frederik@fvhovell.nl>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[PMM: commit message tweaks]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 months agoqapi/machine: Belatedly document target loongarch64 is since 7.1
Markus Armbruster [Thu, 18 Jul 2024 14:10:01 +0000 (16:10 +0200)]
qapi/machine: Belatedly document target loongarch64 is since 7.1

Fixes: a8a506c39070 (hw/loongarch: Add support loongson3 virt machine type.)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240718141001.3077709-1-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
8 months agoqapi/qom: make some QOM properties depend on the build settings
Stefano Garzarella [Tue, 4 Jun 2024 13:59:31 +0000 (15:59 +0200)]
qapi/qom: make some QOM properties depend on the build settings

Some QOM properties are associated with ObjectTypes that already
depend on CONFIG_* switches. So to avoid generating dead code,
let's also make the definition of those properties dependent on
the corresponding CONFIG_*.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-ID: <20240604135931.311709-1-sgarzare@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Make SecretKeyringProperties conditional, too]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 months agotarget/rx: Use target_ulong for address in LI
Richard Henderson [Wed, 24 Jul 2024 04:53:38 +0000 (14:53 +1000)]
target/rx: Use target_ulong for address in LI

Using int32_t meant that the address was sign-extended to uint64_t
when passing to translator_ld*, triggering an assert.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2453
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Thomas Huth <thuth@redhat.com>
8 months agoMerge tag 'pull-ppc-for-9.1-2-20240726-1' of https://gitlab.com/npiggin/qemu into...
Richard Henderson [Fri, 26 Jul 2024 05:10:45 +0000 (15:10 +1000)]
Merge tag 'pull-ppc-for-9.1-2-20240726-1' of https://gitlab.com/npiggin/qemu into staging

fixes

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# gpg: Good signature from "Nicholas Piggin <npiggin@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.
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* tag 'pull-ppc-for-9.1-2-20240726-1' of https://gitlab.com/npiggin/qemu: (96 commits)
  target/ppc: Remove includes from mmu-book3s-v3.h
  target/ppc/mmu-radix64: Remove externally unused parts from header
  target/ppc: Unexport some functions from mmu-book3s-v3.h
  target/ppc/mmu-hash32.c: Move get_pteg_offset32() to the header
  target/ppc/mmu-hash32.c: Inline and remove ppc_hash32_pte_raddr()
  target/ppc/mmu_common.c: Remove mmu_ctx_t
  target/ppc/mmu_common.c: Stop using ctx in get_bat_6xx_tlb()
  target/ppc: Remove bat_size_prot()
  target/ppc/mmu_common.c: Use defines instead of numeric constants
  target/ppc/mmu_common.c: Rename function parameter
  target/ppc/mmu_common.c: Stop using ctx in ppc6xx_tlb_check()
  target/ppc/mmu_common.c: Remove key field from mmu_ctx_t
  target/ppc/mmu_common.c: Init variable in function that relies on it
  target/ppc/mmu-hash32.c: Inline and remove ppc_hash32_pte_prot()
  target/ppc: Add function to get protection key for hash32 MMU
  target/ppc/mmu_common.c: Remove ptem field from mmu_ctx_t
  target/ppc/mmu_common.c: Inline and remove ppc6xx_tlb_pte_check()
  target/ppc/mmu_common.c: Simplify a switch statement
  target/ppc/mmu_common.c: Remove single use local variable
  target/ppc/mmu_common.c: Convert local variable to bool
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8 months agotarget/ppc: Remove includes from mmu-book3s-v3.h
BALATON Zoltan [Sun, 26 May 2024 23:13:08 +0000 (01:13 +0200)]
target/ppc: Remove includes from mmu-book3s-v3.h

Drop includes from header that is not needed by the header itself and
only include them from C files that really need it.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu-radix64: Remove externally unused parts from header
BALATON Zoltan [Sun, 26 May 2024 23:13:07 +0000 (01:13 +0200)]
target/ppc/mmu-radix64: Remove externally unused parts from header

Move the parts not needed outside of mmu-radix64.c from the header to
the C file to leave only parts in the header that need to be exported.
Also drop unneded include of this header.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc: Unexport some functions from mmu-book3s-v3.h
BALATON Zoltan [Sun, 26 May 2024 23:13:06 +0000 (01:13 +0200)]
target/ppc: Unexport some functions from mmu-book3s-v3.h

The ppc_hash64_hpt_base() and ppc_hash64_hpt_mask() functions are
mostly used by mmu-hash64.c only but there is one call to
ppc_hash64_hpt_mask() in hw/ppc/spapr_vhyp_mmu.c.in a helper function
that can be moved to mmu-hash64.c which allows these functions to be
removed from the header.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu-hash32.c: Move get_pteg_offset32() to the header
BALATON Zoltan [Sun, 26 May 2024 23:13:05 +0000 (01:13 +0200)]
target/ppc/mmu-hash32.c: Move get_pteg_offset32() to the header

This function is a simple shared function, move it to other similar
static inline functions in the header.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu-hash32.c: Inline and remove ppc_hash32_pte_raddr()
BALATON Zoltan [Sun, 26 May 2024 23:13:04 +0000 (01:13 +0200)]
target/ppc/mmu-hash32.c: Inline and remove ppc_hash32_pte_raddr()

This function is used only once and does not add more clarity than
doing it inline.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu_common.c: Remove mmu_ctx_t
BALATON Zoltan [Sun, 26 May 2024 23:13:03 +0000 (01:13 +0200)]
target/ppc/mmu_common.c: Remove mmu_ctx_t

Completely get rid of mmu_ctx_t after converting the remaining
functions to pass raddr and prot without the context struct.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu_common.c: Stop using ctx in get_bat_6xx_tlb()
BALATON Zoltan [Sun, 26 May 2024 23:13:02 +0000 (01:13 +0200)]
target/ppc/mmu_common.c: Stop using ctx in get_bat_6xx_tlb()

Pass raddr and prot in function parameters instead

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc: Remove bat_size_prot()
BALATON Zoltan [Sun, 26 May 2024 23:13:01 +0000 (01:13 +0200)]
target/ppc: Remove bat_size_prot()

There is already a hash32_bat_prot() function that does most if this
and the rest can be inlined. Export hash32_bat_prot() and rename it to
ppc_hash32_bat_prot() to match other functions and use it in
get_bat_6xx_tlb().

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu_common.c: Use defines instead of numeric constants
BALATON Zoltan [Sun, 26 May 2024 23:13:00 +0000 (01:13 +0200)]
target/ppc/mmu_common.c: Use defines instead of numeric constants

Replace some BAT related constants with defines from mmu-hash32.h

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu_common.c: Rename function parameter
BALATON Zoltan [Sun, 26 May 2024 23:12:59 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Rename function parameter

Rename parameter of get_bat_6xx_tlb() from virtual to eaddr to match
other functions.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu_common.c: Stop using ctx in ppc6xx_tlb_check()
BALATON Zoltan [Sun, 26 May 2024 23:12:58 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Stop using ctx in ppc6xx_tlb_check()

Pass raddr and prot in function parameters instead.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu_common.c: Remove key field from mmu_ctx_t
BALATON Zoltan [Sun, 26 May 2024 23:12:57 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Remove key field from mmu_ctx_t

Pass it as a function parameter and remove it from mmu_ctx_t.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu_common.c: Init variable in function that relies on it
BALATON Zoltan [Sun, 26 May 2024 23:12:56 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Init variable in function that relies on it

The ppc6xx_tlb_check() relies on the caller to initialise raddr field
in ctx. Move this init from the only caller into the function.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu-hash32.c: Inline and remove ppc_hash32_pte_prot()
BALATON Zoltan [Sun, 26 May 2024 23:12:55 +0000 (01:12 +0200)]
target/ppc/mmu-hash32.c: Inline and remove ppc_hash32_pte_prot()

This is used only once and can be inlined.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc: Add function to get protection key for hash32 MMU
BALATON Zoltan [Sun, 26 May 2024 23:12:54 +0000 (01:12 +0200)]
target/ppc: Add function to get protection key for hash32 MMU

Add a function to get key bit from SR and use it instead of open coded
version.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu_common.c: Remove ptem field from mmu_ctx_t
BALATON Zoltan [Sun, 26 May 2024 23:12:53 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Remove ptem field from mmu_ctx_t

Instead of passing around ptem in context use it once in the same
function so it can be removed from mmu_ctx_t.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
8 months agotarget/ppc/mmu_common.c: Inline and remove ppc6xx_tlb_pte_check()
BALATON Zoltan [Sun, 26 May 2024 23:12:51 +0000 (01:12 +0200)]
target/ppc/mmu_common.c: Inline and remove ppc6xx_tlb_pte_check()

This function is only called once and we can make the caller simpler
by inlining it.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>