Generating .rs files makes it possible to support tracing in rust.
This support comprises a new format, and common code that converts
the C expressions in trace-events to Rust. In particular, types
need to be converted, and PRI macros expanded.
As of this commit no backend generates Rust code, but it is already
possible to use tracetool to generate Rust sources; they are not
functional but they compile and contain tracepoint functions.
[Move Rust argument conversion from Event to Arguments; string
support. - Paolo]
Signed-off-by: Tanish Desai <tanishdesai37@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250929154938.594389-9-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Use CHECK_TRACE_EVENT_GET_STATE in log, syslog, dtrace and simple
backend, so that the "if (trace_event_get_state)" is created from common
code and unified when multiple backends are active.
When a single backend is active there is no code change (except
for the log backend, as shown in tests/tracetool/log.h), but the
code in the backends is simpler.
Signed-off-by: Tanish Desai <tanishdesai37@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250929154938.594389-8-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Add a new attribute CHECK_TRACE_EVENT_GET_STATE to the backends.
When present and True, the code generated by the generate function
is wrapped in a conditional that checks whether the event is enabled;
this removes the need for repeating the same conditional in multiple
backends.
Signed-off-by: Tanish Desai <tanishdesai37@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250929154938.594389-7-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This simplifies the Python code and reduces the size of the tracepoints.
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250929154938.594389-6-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250929154938.594389-5-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The "-*- coding: utf-8 -*-" header was needed in Python 2,
but in Python 3 UTF-8 is already the default encoding of
source files.
It is even less necessary in .css files that do not have UTF-8
sequences at all.
Suggested-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250929154938.594389-4-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Remove a bunch of dead code from tracetool.
In particular, there are no tcg-exec events anymore and the sub-event
functionality was only used for it.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250929154938.594389-3-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
try_import returns a tuple of a boolean and the requested module or attribute.
exists() functions return tracetool.try_import("tracetool.format." + name)[1]
but they should return the boolean value instead.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250929154938.594389-2-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Some distros/targets may pull it by default, but some don't.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250924120426.2158655-16-marcandre.lureau@redhat.com>
Newer lcitool version has various fixes helping QEMU CI and this series.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250924120426.2158655-13-marcandre.lureau@redhat.com>
Implement a bash version of rust-bindgen rust_to_clang_target() to
convert from rust target to clang target.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250924120426.2158655-8-marcandre.lureau@redhat.com>
Running meson on each subproject is quite slow.
According to Paolo, meson will run download tasks in parallel.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250924120426.2158655-4-marcandre.lureau@redhat.com>
When running the license check, if we are updating a license it is
possible for the checkpatch script to test against old license lines
instead of newer ones, since the removal lines appear before the
addition lines in a .patch file.
Fix this by skipping over lines that start with "-" in the checkpatch
script.
Signed-off-by: Nabih Estefan <nabihestefan@google.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250916165928.10048-1-nabihestefan@google.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250922093711.2768983-4-alex.bennee@linaro.org>
This is a script designed to collect data from multiple pipelines and
analyse the failure modes they have. By default it will probe the last
3 failed jobs on the staging branch. However this can all be
controlled by the CLI:
./scripts/ci/gitlab-failure-analysis --count 2 --branch=testing/next --id 39915562 --status=
running pipeline 2028486060, total jobs 125, skipped 5, failed 0, 39742 tests, 0 failed tests
success pipeline 2015018135, total jobs 125, skipped 5, failed 0, 49219 tests, 0 failed tests
You can also skip failing jobs and just dump the tests:
./scripts/ci/gitlab-failure-analysis --branch= --id 39915562 --status= --skip-jobs --pipeline 1946202491 1919542960
failed pipeline 1946202491, total jobs 127, skipped 5, failed 26, 38742 tests, 278 skipped tests, 2 failed tests
Failed test qemu.qemu:qtest+qtest-s390x / qtest-s390x/boot-serial-test, check-system-opensuse, 1 /s390x/boot-serial/s390-ccw-virtio - FATAL-ERROR: Failed to find expected string. Please check '/tmp/qtest-boot-serial-sW77EA3'
Failed test qemu.qemu:qtest+qtest-aarch64 / qtest-aarch64/arm-cpu-features, check-system-opensuse, 1 /aarch64/arm/query-cpu-model-expansion - ERROR:../tests/qtest/arm-cpu-features.c:459:test_query_cpu_model_expansion: assertion failed (_error == "The CPU type 'host' requires KVM"): ("The CPU type 'host' requires hardware accelerator" == "The CPU type 'host' requires KVM")
failed pipeline 1919542960, total jobs 127, skipped 5, failed 2, 48753 tests, 441 skipped tests, 1 failed tests
Failed test qemu.qemu:unit / test-aio, msys2-64bit, 12 /aio/timer/schedule - ERROR:../tests/unit/test-aio.c:413:test_timer_schedule: assertion failed: (aio_poll(ctx, true))
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250922093711.2768983-3-alex.bennee@linaro.org>
The attrs crate is a simple combinator-based for Rust attributes. It
will be used instead of a handwritten parser.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* tests, scripts: Don't import print_function from __future__
* Implement FEAT_ATS1A
* Remove deprecated pxa CPU family
* arm/kvm: report registers we failed to set
* Expose SME registers to GDB via gdbstub
* linux-user/aarch64: Generate ESR signal records
* hw/arm/raspi4b: remove redundant check in raspi_add_memory_node
* hw/arm/virt: Allow user-creatable SMMUv3 dev instantiation
* system: drop the -old-param option
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Merge tag 'pull-target-arm-20250916' of https://gitlab.com/pm215/qemu into staging
target-arm queue:
* tests, scripts: Don't import print_function from __future__
* Implement FEAT_ATS1A
* Remove deprecated pxa CPU family
* arm/kvm: report registers we failed to set
* Expose SME registers to GDB via gdbstub
* linux-user/aarch64: Generate ESR signal records
* hw/arm/raspi4b: remove redundant check in raspi_add_memory_node
* hw/arm/virt: Allow user-creatable SMMUv3 dev instantiation
* system: drop the -old-param option
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# gpg: Signature made Tue 16 Sep 2025 11:05:19 AM PDT
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [unknown]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [unknown]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [unknown]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* tag 'pull-target-arm-20250916' of https://gitlab.com/pm215/qemu: (36 commits)
hw/usb/network: Remove hardcoded 0x40 prefix in STRING_ETHADDR response
qtest/bios-tables-test: Update tables for smmuv3 tests
qtest/bios-tables-test: Add tests for legacy smmuv3 and smmuv3 device
bios-tables-test: Allow for smmuv3 test data.
qemu-options.hx: Document the arm-smmuv3 device
hw/arm/virt: Allow user-creatable SMMUv3 dev instantiation
hw/pci: Introduce pci_setup_iommu_per_bus() for per-bus IOMMU ops retrieval
hw/arm/virt: Add an SMMU_IO_LEN macro
hw/arm/virt: Factor out common SMMUV3 dt bindings code
hw/arm/virt-acpi-build: Update IORT for multiple smmuv3 devices
hw/arm/virt-acpi-build: Re-arrange SMMUv3 IORT build
hw/arm/smmu-common: Check SMMU has PCIe Root Complex association
target/arm: Added test case for SME register exposure to GDB
target/arm: Added support for SME register exposure to GDB
target/arm: Increase MAX_PACKET_LENGTH for SME ZA remote gdb debugging
arm/kvm: report registers we failed to set
system: drop the -old-param option
target/arm: Drop ARM_FEATURE_IWMMXT handling
target/arm: Drop ARM_FEATURE_XSCALE handling
target/arm: Remove iwmmxt helper functions
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Every generated inline probe function is wrapped with a
trivial caller that has a hard-coded condition test:
static inline void _nocheck__trace_test_wibble(void * context, int value)
{
tracepoint(qemu, test_wibble, context, value);
}
static inline void trace_test_wibble(void * context, int value)
{
if (true) {
_nocheck__trace_test_wibble(context, value);
}
}
This was introduced for TCG probes back in
864a2178: trace: [tcg] Do not generate TCG code to trace dynamically-disabled events
but is obsolete since
126d4123 tracing: excise the tcg related from tracetool
This commit removes the wrapping such that we have
static inline void trace_test_wibble(void * context, int value)
{
tracepoint(qemu, test_wibble, context, value);
}
The default build of qemu-system-x86_64 on Fedora with the
'log' backend, has its size reduced by 1 MB
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20250916081638.764020-7-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
While these files are auto-generated, a later commit will add
reference output to git, so having SPDX-License-Identifier is
desirable.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20250916081638.764020-5-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
QEMU code style is to have no whitespace between "*" and the
arg name. Since generated trace code will soon be added to
git, make it comply with code style.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20250916081638.764020-4-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20250916081638.764020-3-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Sometimes SPDX expressions appear inside C comments, and this
confuses checkpatch.pl. Drop the closing C comment characters
to avoid this.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20250916081638.764020-2-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Some of our Python scripts still include the line
from __future__ import print_function
which is intended to allow a Python 2 to handle the Python 3 print()
syntax. This particular part of the future arrived many years ago,
and our minimum Python version is 3.9, so we don't need to keep
this line around.
NB: the scripts in tests/tcg/*/gdbstub/ are run with whatever Python
gdb was built against, but we can safely assume that that was a
Python 3 because our supported distros are all on Python 3. In any
case these are only run as part of "make check-tcg", not by
end-users.
Commit created with:
sed -i -e '/import print_function/d' $(git grep -l 'from __future__')
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250819102409.2117969-1-peter.maydell@linaro.org
Cover the TCG plugins files under their own Coverity category.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250811094341.91597-1-philmd@linaro.org>
We can now delete the old Perl kernel-doc script. For posterity,
this is a complete diff of the local changes that we were carrying
between the kernel's Perl script as of kernel commit 72b97d0b911872ba
(the last time we synced it) and our local copy:
--- /tmp/kdoc 2025-08-14 10:42:47.620331939 +0100
+++ scripts/kernel-doc 2025-02-17 10:44:34.528421457 +0000
@@ -1,5 +1,5 @@
#!/usr/bin/env perl
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: GPL-2.0-only
use warnings;
use strict;
@@ -224,12 +224,12 @@
my $type_fp_param = '\@(\w+)\(\)'; # Special RST handling for func ptr params
my $type_fp_param2 = '\@(\w+->\S+)\(\)'; # Special RST handling for structs with func ptr params
my $type_env = '(\$\w+)';
-my $type_enum = '\&(enum\s*([_\w]+))';
-my $type_struct = '\&(struct\s*([_\w]+))';
-my $type_typedef = '\&(typedef\s*([_\w]+))';
-my $type_union = '\&(union\s*([_\w]+))';
-my $type_member = '\&([_\w]+)(\.|->)([_\w]+)';
-my $type_fallback = '\&([_\w]+)';
+my $type_enum = '#(enum\s*([_\w]+))';
+my $type_struct = '#(struct\s*([_\w]+))';
+my $type_typedef = '#(([A-Z][_\w]*))';
+my $type_union = '#(union\s*([_\w]+))';
+my $type_member = '#([_\w]+)(\.|->)([_\w]+)';
+my $type_fallback = '(?!)'; # this never matches
my $type_member_func = $type_member . '\(\)';
# Output conversion substitutions.
@@ -1745,6 +1745,9 @@
)+
\)\)\s+//x;
+ # Strip QEMU specific compiler annotations
+ $prototype =~ s/QEMU_[A-Z_]+ +//;
+
# Yes, this truly is vile. We are looking for:
# 1. Return type (may be nothing if we're looking at a macro)
# 2. Function name
@@ -2057,7 +2060,7 @@
}
elsif (/$doc_decl/o) {
$identifier = $1;
- if (/\s*([\w\s]+?)(\(\))?\s*-/) {
+ if (/\s*([\w\s]+?)(\s*-|:)/) {
$identifier = $1;
}
@@ -2067,7 +2070,7 @@
$contents = "";
$section = $section_default;
$new_start_line = $. + 1;
- if (/-(.*)/) {
+ if (/[-:](.*)/) {
# strip leading/trailing/multiple spaces
$descr= $1;
$descr =~ s/^\s*//;
These changes correspond to:
06e2329636 license: Update deprecated SPDX tag GPL-2.0 to GPL-2.0-only
(a bulk change which we won't bother to re-apply to this third-party script)
b30df2751e scripts/kernel-doc: strip QEMU_ from function definitions
4cf4179441 docs: tweak kernel-doc for QEMU coding standards
We have already applied the equivalent of these changes to the
Python code in libs/kdoc/ in the preceding commits.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit makes the equivalent changes to the Python script that we
had for the old Perl script in commit 4cf4179441 ("docs: tweak
kernel-doc for QEMU coding standards"). To repeat the rationale from
that commit:
Surprisingly, QEMU does have a pretty consistent doc comment style and
it is not very different from the Linux kernel's. Of the documentation
"sigils", only "#" separates the QEMU doc comment style from Linux's,
and it has 200+ instances vs. 6 for the kernel's '&struct foo' (all in
accel/tcg/translate-all.c), so it's clear that the two standards are
different in this respect. In addition, our structs are typedefed and
recognized by CamelCase names.
Note that in 4cf4179441 we used '(?!)' as our type_fallback regex;
this is strictly not quite a replacement for the upstream
'\&([_\w]+)', because the latter includes a group that can later be
matched with \1, and the former does not. The old perl script did
not care about this, but the python version does, so we must include
the extra set of brackets to ensure we have a group.
This commit does not include all the same changes that 4cf4179441
did. Of the missing pieces, some had already gone in an earlier
kernel-doc update; the parts we still had but do not include here are:
@@ -2057,7 +2060,7 @@
}
elsif (/$doc_decl/o) {
$identifier = $1;
- if (/\s*([\w\s]+?)(\(\))?\s*-/) {
+ if (/\s*([\w\s]+?)(\s*-|:)/) {
$identifier = $1;
}
@@ -2067,7 +2070,7 @@
$contents = "";
$section = $section_default;
$new_start_line = $. + 1;
- if (/-(.*)/) {
+ if (/[-:](.*)/) {
# strip leading/trailing/multiple spaces
$descr= $1;
$descr =~ s/^\s*//;
The second of these is already in the upstream version: the line r =
KernRe("[-:](.*)") in process_name() matches the regex we have. The
first change has been refactored into the doc_begin_data and
doc_begin_func changes. Since the output HTML for QEMU's
documentation has no relevant changes with the new kerneldoc, we
assume that this too has been handled upstream.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-id: 20250814171324.1614516-6-peter.maydell@linaro.org
This commit is the Python version of our older commit
b30df2751e ("scripts/kernel-doc: strip QEMU_ from function definitions").
Some versions of Sphinx get confused if function attributes are
left on the C code from kernel-doc; strip out any QEMU_* prefixes
from function prototypes.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-id: 20250814171324.1614516-5-peter.maydell@linaro.org
We last synced our copy of kerneldoc with Linux back in 2020. In the
interim, upstream has entirely rewritten the script in Python, and
the new Python version is split into a main script plus some
libraries in the kernel's scripts/lib/kdoc.
Import all these files. These are the versions as of kernel commit
0cc53520e68be, with no local changes.
We use the same lib/kdoc/ directory as the kernel does here, so we
can avoid having to edit the top-level script just to adjust a
pathname, even though it is probably not the naming we would have
picked if this was a purely QEMU script.
The Sphinx conf.py still points at the Perl version of the script,
so this Python code will not be invoked to build the docs yet.
NB: checkpatch complains about many things in this commit,
including the use of "GPL-2.0" rather than "GPL-2.0-only" in
the SPDX tags, but since this is a third party import we can
ignore this.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-id: 20250814171324.1614516-4-peter.maydell@linaro.org
Newer versions of Perl (5.41.x and up) emit a warning for code in
kernel-doc:
Possible precedence problem between ! and pattern match (m//) at /scripts/kernel-doc line 1597.
This is because the code does:
if (!$param =~ /\w\.\.\.$/) {
In Perl, the ! operator has higher precedence than the =~
pattern-match binding, so the effect of this condition is to first
logically-negate the string $param into a true-or-false value and
then try to pattern match it against the regex, which in this case
will always fail. This is almost certainly not what the author
intended.
In the new Python version of kernel-doc in the Linux kernel,
the equivalent code is written:
if KernRe(r'\w\.\.\.$').search(param):
# For named variable parameters of the form `x...`,
# remove the dots
param = param[:-3]
else:
# Handles unnamed variable parameters
param = "..."
which is a more sensible way of writing the behaviour you would
get if you put in brackets to make the regex match first and
then negate the result.
Take this as the intended behaviour, and update the Perl to match.
For QEMU, this produces no change in output, presumably because we
never used the "unnamed variable parameters" syntax.
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-id: 20250819115648.2125709-1-peter.maydell@linaro.org
Fix parse method to use `defconfig` global variable instead of the
non-existent KconfigParser class attribute
Fixes: f349474920 ("minikconfig: implement allnoconfig and defconfig modes")
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Link: https://lore.kernel.org/r/20250820-scripts-minikconf-fixes-v1-1-252041a9125e@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The implementation of this workaround does not currently work, so
remove the option entirely to avoid exposing it to users. The code
will remain (temporarily dormant) to be fixed in the next release
cycle.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/qemu-devel/20250805182431.504158-1-berrange@redhat.com
Signed-off-by: Fabiano Rosas <farosas@suse.de>
In commit bd0da3a3d4 we changed make-release so that instead of
cloning every git submodule of EDK2 we only cloned a fixed list.
The original motivation for this was that one of the submodules:
* was from a non-github repo
* that repo had a "SSL certificate expired" failure
* wasn't actually needed for the set of EDK2 binaries we build
and at the time we were trying to build the EDK2 binaries in one of
our CI jobs.
Unfortunately this change meant that we were exposed to bugs where
EDK2 adds a new submodule and the sources we ship in the release
tarball won't build any more. In particular, in EDK2 commit
c6bb7d54beb05 the MipiSysTLib submodule was added, causing failure of
the ROM build in our tarball starting from QEMU release 8.2.0:
/tmp/qemu-10.0.0/roms/edk2/MdePkg/MdePkg.dec(32): error 000E: File/directory not found in workspace
Library/MipiSysTLib/mipisyst/library/include is not found in packages path:
/tmp/qemu-10.0.0/roms/.
/tmp/qemu-10.0.0/roms/edk2
(Building from a QEMU git checkout works fine.)
In the intervening time EDK2 moved the submodule that had a problem
to be one they mirrored themselves (and at time of writing all their
submodules are hosted on github), and we stopped trying to build
EDK2 binaries in our own CI jobs with commit 690ceb7193.
Go back to cloning every EDK2 submodule, so we don't have an
untested explicit list of submodules which will break without
our noticing it.
This increases the size of the QEMU tarball .tar.xz file from
133M to 139M in my testing.
Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3041
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Message-ID: <20250721153341.2910800-1-peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Some distros prefer to avoid vendored crate sources, and instead use
local sources from e.g. ``/usr/share/cargo/registry``. Add a
script, inspired by the Mesa spec file(*), that automatically
performs this task. The script is meant to be invoked after unpacking
the QEMU tarball.
(*) This is the hack that Mesa uses:
export MESON_PACKAGE_CACHE_DIR="%{cargo_registry}/"
%define inst_crate_nameversion() %(basename %{cargo_registry}/%{1}-*)
%define rewrite_wrap_file() sed -e "/source.*/d" -e "s/%{1}-.*/%{inst_crate_nameversion %{1}}/" -i subprojects/%{1}.wrap
%rewrite_wrap_file proc-macro2
... more %rewrite_wrap_file invocations follow ...
Reviewed-by: Neal Gompa <ngompa@fedoraproject.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is still worth having in QEMU 10.1 for the all-round improvements
made (consistent timestamping, binary size reduction, header pollution cleanup)
even if it's debatable whether this is a bug fix.
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Merge tag 'tracing-pull-request' of https://gitlab.com/stefanha/qemu into staging
Pull request
This commit is still worth having in QEMU 10.1 for the all-round improvements
made (consistent timestamping, binary size reduction, header pollution cleanup)
even if it's debatable whether this is a bug fix.
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# gpg: Signature made Thu 24 Jul 2025 10:46:29 EDT
# gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [ultimate]
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [ultimate]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* tag 'tracing-pull-request' of https://gitlab.com/stefanha/qemu:
log: make '-msg timestamp=on' apply to all qemu_log usage
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Failure to confirm an argument set first may result in
the selection of a format which leaves extra arguments
to be filled in by the pattern.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250723165458.3509150-4-peter.maydell@linaro.org
Message-id: 20250722183343.273533-1-richard.henderson@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Currently the tracing 'log' back emits special code to add timestamps
to trace points sent via qemu_log(). This current impl is a bad design
for a number of reasons.
* It changes the QEMU headers, such that 'error-report.h' content
is visible to all files using tracing, but only when the 'log'
backend is enabled. This has led to build failure bugs as devs
rarely test without the (default) 'log' backend enabled, and
CI can't cover every scenario for every trace backend.
* It bloats the trace points definitions which are inlined into
every probe location due to repeated inlining of timestamp
formatting code, adding MBs of overhead to QEMU.
* The tracing subsystem should not be treated any differently
from other users of qemu_log. They all would benefit from
having timestamps present.
* The timestamp emitted with the tracepoints is in a needlessly
different format to that used by error_report() in response
to '-msg timestamp=on'.
This fixes all these issues simply by moving timestamp formatting
into qemu_log, using the same approach as for error_report.
The code before:
static inline void _nocheck__trace_qcrypto_tls_creds_get_path(void * creds, const char * filename, const char * path)
{
if (trace_event_get_state(TRACE_QCRYPTO_TLS_CREDS_GET_PATH) && qemu_loglevel_mask(LOG_TRACE)) {
if (message_with_timestamp) {
struct timeval _now;
gettimeofday(&_now, NULL);
qemu_log("%d@%zu.%06zu:qcrypto_tls_creds_get_path " "TLS creds path creds=%p filename=%s path=%s" "\n",
qemu_get_thread_id(),
(size_t)_now.tv_sec, (size_t)_now.tv_usec
, creds, filename, path);
} else {
qemu_log("qcrypto_tls_creds_get_path " "TLS creds path creds=%p filename=%s path=%s" "\n", creds, filename, path);
}
}
}
and after:
static inline void _nocheck__trace_qcrypto_tls_creds_get_path(void * creds, const char * filename, const char * path)
{
if (trace_event_get_state(TRACE_QCRYPTO_TLS_CREDS_GET_PATH) && qemu_loglevel_mask(LOG_TRACE)) {
qemu_log("qcrypto_tls_creds_get_path " "TLS creds path creds=%p filename=%s path=%s" "\n", creds, filename, path);
}
}
The log and error messages before:
$ qemu-system-x86_64 -trace qcrypto* -object tls-creds-x509,id=tls0,dir=$HOME/tls -msg timestamp=on
2986097@1753122905.917608:qcrypto_tls_creds_x509_load TLS creds x509 load creds=0x55d925bd9490 dir=/var/home/berrange/tls
2986097@1753122905.917621:qcrypto_tls_creds_get_path TLS creds path creds=0x55d925bd9490 filename=ca-cert.pem path=<none>
2025-07-21T18:35:05.917626Z qemu-system-x86_64: Unable to access credentials /var/home/berrange/tls/ca-cert.pem: No such file or directory
and after:
$ qemu-system-x86_64 -trace qcrypto* -object tls-creds-x509,id=tls0,dir=$HOME/tls -msg timestamp=on
2025-07-21T18:43:28.089797Z qcrypto_tls_creds_x509_load TLS creds x509 load creds=0x55bf5bf12380 dir=/var/home/berrange/tls
2025-07-21T18:43:28.089815Z qcrypto_tls_creds_get_path TLS creds path creds=0x55bf5bf12380 filename=ca-cert.pem path=<none>
2025-07-21T18:43:28.089819Z qemu-system-x86_64: Unable to access credentials /var/home/berrange/tls/ca-cert.pem: No such file or directory
The binary size before:
$ ls -alh qemu-system-x86_64
-rwxr-xr-x. 1 berrange berrange 87M Jul 21 19:39 qemu-system-x86_64
$ strip qemu-system-x86_64
$ ls -alh qemu-system-x86_64
-rwxr-xr-x. 1 berrange berrange 30M Jul 21 19:39 qemu-system-x86_64
and after:
$ ls -alh qemu-system-x86_64
-rwxr-xr-x. 1 berrange berrange 85M Jul 21 19:41 qemu-system-x86_64
$ strip qemu-system-x86_64
$ ls -alh qemu-system-x86_64
-rwxr-xr-x. 1 berrange berrange 29M Jul 21 19:41 qemu-system-x86_64
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-id: 20250721185452.3016488-1-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
When TLS 1.3 is negotiated on a TLS session, GNUTLS will perform
automatic rekeying of the session after 16 million records. This
is done for all algorithms except CHACHA20_POLY1305 which does
not require rekeying.
Unfortunately the rekeying breaks GNUTLS' promise that it is safe
to use a gnutls_session_t object concurrently from multiple threads
if they are exclusively calling gnutls_record_send/recv.
This patch implements a workaround for QEMU that adds a mutex lock
around any gnutls_record_send/recv call to serialize execution
within GNUTLS code. When GNUTLS calls into the push/pull functions
we can release the lock so the OS level I/O calls can at least
have some parallelism.
The big downside of this is that the actual encryption/decryption
code is fully serialized, which will halve performance of that
cipher operations if two threads are contending.
The workaround is not enabled by default, since most use of GNUTLS
in QEMU does not tickle the problem, only non-multifd migration
with a return path open is affected. Fortunately the migration
code also won't trigger the halving of performance, since only
the outbound channel diretion needs to sustain high data rates,
the inbound direction is low volume.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/qemu-devel/20250718150514.2635338-2-berrange@redhat.com
[add stub for qcrypto_tls_session_require_thread_safety; fix unused var]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
The vcpu property is no longer used in these backends. Removing it avoids
unnecessary checks and simplifies the code generation for these trace
backends.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Tanish Desai <tanishdesai37@gmail.com>
Message-id: 20250722114352.3624-1-tanishdesai37@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
KVM support for 32-bit arm has been dropped a while ago, so we don't
need these headers in QEMU anymore.
Fixes: 82bf7ae84c ("target/arm: Remove KVM support for 32-bit Arm hosts")
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250710120035.169376-1-thuth@redhat.com>
Commit 84fe49d94a ("meson: Add optional dependency on IGVM library")
was inconsistent with the contents of meson_options.txt and the one
generated in scripts/meson-buildoptions.sh
Let's regenerate the file in this way to keep them consistent and prevent
future changes from including the spurious diff:
touch meson_options.txt
make update-buildoptions
Fixes: 84fe49d94a ("meson: Add optional dependency on IGVM library")
Cc: roy.hopkins@randomman.co.uk
Reported-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20250717131256.157383-1-sgarzare@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust: qemu-api-macros: cleanup and add unit tests for TryInto
* rust: log: implement io::Write, avoid memory allocations
when logging constant strings
* target/i386: fix usage of properties whenever accelerators
change the default (e.g. vendor)
* target/i386: add support for TDVMCALL_SETUP_EVENT_NOTIFY_INTERRUPT
* target/i386: add support for booting an SEV VM from an IGVM file
* target/i386: unify cache model descriptions between CPUID 2,
CPUID 4 and AMD specific CPUID 0x80000006
* target/i386: introduce cache models for recent Intel CPU models
* target/i386: mark some 0x80000000-0x80000008 bits as reserved on Intel
* target/i386: cleanups
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* rust: miscellaneous fixes
* rust: qemu-api-macros: cleanup and add unit tests for TryInto
* rust: log: implement io::Write, avoid memory allocations
when logging constant strings
* target/i386: fix usage of properties whenever accelerators
change the default (e.g. vendor)
* target/i386: add support for TDVMCALL_SETUP_EVENT_NOTIFY_INTERRUPT
* target/i386: add support for booting an SEV VM from an IGVM file
* target/i386: unify cache model descriptions between CPUID 2,
CPUID 4 and AMD specific CPUID 0x80000006
* target/i386: introduce cache models for recent Intel CPU models
* target/i386: mark some 0x80000000-0x80000008 bits as reserved on Intel
* target/i386: cleanups
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# gpg: Signature made Mon 14 Jul 2025 04:29:31 EDT
# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (77 commits)
i386/cpu: Honor maximum value for CPUID.8000001DH.EAX[25:14]
i386/cpu: Fix overflow of cache topology fields in CPUID.04H
i386/cpu: Fix cpu number overflow in CPUID.01H.EBX[23:16]
i386/cpu: Fix number of addressable IDs field for CPUID.01H.EBX[23:16]
i386/cpu: Reorder CPUID leaves in cpu_x86_cpuid()
tests/vm: bump FreeBSD image to 14.3
tests/functional: test_x86_cpu_model_versions: remove dead tests
i386/cpu: Mark CPUID 0x80000008 ECX bits[0:7] & [12:15] as reserved for Intel/Zhaoxin
i386/cpu: Mark CPUID 0x80000007[EBX] as reserved for Intel
i386/cpu: Mark EBX/ECX/EDX in CPUID 0x80000000 leaf as reserved for Intel
i386/cpu: Enable 0x1f leaf for YongFeng by default
i386/cpu: Enable 0x1f leaf for SapphireRapids by default
i386/cpu: Enable 0x1f leaf for GraniteRapids by default
i386/cpu: Enable 0x1f leaf for SierraForest by default
i386/cpu: Enable 0x1f leaf for SierraForest by default
i386/cpu: Add a "x-force-cpuid-0x1f" property
i386/cpu: Introduce cache model for YongFeng
i386/cpu: Introduce cache model for SapphireRapids
i386/cpu: Introduce cache model for GraniteRapids
i386/cpu: Introduce cache model for SierraForest
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
