The "special_features" field / parameter holds the subset of schema
features that are for internal code use. Specifically 'DEPRECATED'
and 'UNSTABLE'.
This special casing of internal features is going to be removed, so
prepare for that by renaming to 'features'. Using a fixed size type
is also best practice for bit fields.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250205123550.2754387-3-berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
When we shortly expose all feature names to code, it will be valid to
include a '-', which must be translated to a '_' for the enum constants.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250205123550.2754387-2-berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
The general expectation is that header files should follow the same
file/path naming scheme as the corresponding source file. There are
various historical exceptions to this practice in QEMU, with one of
the most notable being the include/qapi/qmp/ directory.
include/qapi/qmp/dispatch.h corresponds mostly to qapi/qmp-registry.c.
Move and rename it to include/qapi/qmp-registry.h.
Now just qerror.h is left in include/qapi/qmp/. Since it's deprecated
& (slowly) getting eliminated anyway, it isn't worth moving.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20241118151235.2665921-3-armbru@redhat.com>
The general expectation is that header files should follow the same
file/path naming scheme as the corresponding source file. There are
various historical exceptions to this practice in QEMU, with one of
the most notable being the include/qapi/qmp/ directory. Most of the
headers there correspond to source files in qobject/.
This patch corrects most of that inconsistency by creating
include/qobject/ and moving the headers for qobject/ there.
This also fixes MAINTAINERS for include/qapi/qmp/dispatch.h:
scripts/get_maintainer.pl now reports "QAPI" instead of "No
maintainers found".
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com> #s390x
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20241118151235.2665921-2-armbru@redhat.com>
[Rebased]
Per [*]:
"we're only interested in adopting SPDX for recording the
licensing info, [not] any other SPDX metadata."
Replace the 'SPDX-FileCopyrightText' and 'SPDX-FileContributor'
tags added by Linaro by 'Copyright (c)' and 'Authors' words
respectively.
[*] https://lore.kernel.org/qemu-devel/20241007154548.1144961-4-berrange@redhat.com/
Inspired-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
- log a guest_error for failed semihosting open()
- clean up semihosting includes to reduce build duplication
- re-factor misc device initialisation to fail with &error_exit
- propagate Error * to gdbserver_start sub-functions
- fix 32-bit build of plugins and re-enable by default
- ensure IRQs don't preempt io recompiled instructions
- remove usage of gcc_struct to enable clang builds
- enable clang/lld to build plugins on windows
- various small kdoc typo fixes
- add perl scripts to editorconfig
- remove unused field from MemoryRegion
- make kdoc script a dependency so doc rebuilds get triggered
- expand developer documentation:
- notes on git-publish
- describe usage of b4
- setting up build dependencies
- codebase layout
- add a glossary of common terms
- optimise the windows ndis script
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Merge tag 'pull-10.0-gdb-plugins-doc-updates-170125-1' of https://gitlab.com/stsquad/qemu into staging
semihosting, plugin and doc updates:
- log a guest_error for failed semihosting open()
- clean up semihosting includes to reduce build duplication
- re-factor misc device initialisation to fail with &error_exit
- propagate Error * to gdbserver_start sub-functions
- fix 32-bit build of plugins and re-enable by default
- ensure IRQs don't preempt io recompiled instructions
- remove usage of gcc_struct to enable clang builds
- enable clang/lld to build plugins on windows
- various small kdoc typo fixes
- add perl scripts to editorconfig
- remove unused field from MemoryRegion
- make kdoc script a dependency so doc rebuilds get triggered
- expand developer documentation:
- notes on git-publish
- describe usage of b4
- setting up build dependencies
- codebase layout
- add a glossary of common terms
- optimise the windows ndis script
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# gpg: Signature made Fri 17 Jan 2025 06:15:23 EST
# gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44
* tag 'pull-10.0-gdb-plugins-doc-updates-170125-1' of https://gitlab.com/stsquad/qemu: (37 commits)
scripts/nsis.py: Run dependency check for each DLL file only once
docs: add a glossary
docs/devel: add a codebase section
docs/devel: add information on how to setup build environments
docs/devel: add b4 for patch retrieval
docs/devel: add git-publish for patch submitting
docs/sphinx: include kernel-doc script as a dependency
include/exec: remove warning_printed from MemoryRegion
include/exec: fix some copy and paste errors in kdoc
tests/qtest: fix some copy and paste errors in kdoc
editorconfig: update for perl scripts
plugins: fix kdoc annotation
plugins: enable linking with clang/lld
docs/devel/style: add a section about bitfield, and disallow them for packed structures
win32: remove usage of attribute gcc_struct
accel/tcg: also suppress asynchronous IRQs for cpu_io_recompile
configure: reenable plugins by default for 32-bit hosts
contrib/plugins/hotpages: fix 32-bit build
contrib/plugins/hwprofile: fix 32-bit build
contrib/plugins/cflow: fix 32-bit build
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* target/i386: small code generation improvements
* target/i386: various cleanups and fixes
* cpu: remove env->nr_cores
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* rust: miscellaneous changes
* target/i386: small code generation improvements
* target/i386: various cleanups and fixes
* cpu: remove env->nr_cores
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# gpg: Signature made Fri 10 Jan 2025 17:34:48 EST
# 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: (38 commits)
i386/cpu: Set and track CPUID_EXT3_CMP_LEG in env->features[FEAT_8000_0001_ECX]
i386/cpu: Set up CPUID_HT in x86_cpu_expand_features() instead of cpu_x86_cpuid()
cpu: Remove nr_cores from struct CPUState
i386/cpu: Hoist check of CPUID_EXT3_TOPOEXT against threads_per_core
i386/cpu: Track a X86CPUTopoInfo directly in CPUX86State
i386/topology: Introduce helpers for various topology info of different level
i386/topology: Update the comment of x86_apicid_from_topo_ids()
i386/cpu: Drop cores_per_pkg in cpu_x86_cpuid()
i386/cpu: Drop the variable smp_cores and smp_threads in x86_cpu_pre_plug()
i386/cpu: Extract a common fucntion to setup value of MSR_CORE_THREAD_COUNT
target/i386/kvm: Replace ARRAY_SIZE(msr_handlers) with KVM_MSR_FILTER_MAX_RANGES
target/i386/kvm: Clean up error handling in kvm_arch_init()
target/i386/kvm: Return -1 when kvm_msr_energy_thread_init() fails
target/i386/kvm: Clean up return values of MSR filter related functions
target/i386/confidential-guest: Fix comment of x86_confidential_guest_kvm_type()
target/i386/kvm: Drop workaround for KVM_X86_DISABLE_EXITS_HTL typo
target/i386/kvm: Only save/load kvmclock MSRs when kvmclock enabled
target/i386/kvm: Remove local MSR_KVM_WALL_CLOCK and MSR_KVM_SYSTEM_TIME definitions
target/i386/kvm: Add feature bit definitions for KVM CPUID
i386/cpu: Mark avx10_version filtered when prefix is NULL
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Each DLL should only be checked once for dependencies, but
several hundred (781 in my test) unneeded checks were done.
Now the script is significantly faster (16 s in my build).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20250111215244.1680931-1-sw@weilnetz.de>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250116160306.1709518-38-alex.bennee@linaro.org>
This attribute is not recognized by clang.
An investigation has been performed to ensure this attribute has no
effect on layout of structures we use in QEMU [1], so it's safe to
remove now.
In the future, we'll forbid introducing new bitfields in packed struct,
as they are the one potentially impacted by this change.
[1] https://lore.kernel.org/qemu-devel/66c346de-7e20-4831-b3eb-1cda83240af9@linaro.org/
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Stefan Weil <sw@weilnetz.de>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20250110203401.178532-2-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250116160306.1709518-24-alex.bennee@linaro.org>
The vmclock device addresses the problem of live migration with
precision clocks. The tolerances of a hardware counter (e.g. TSC) are
typically around ±50PPM. A guest will use NTP/PTP/PPS to discipline that
counter against an external source of 'real' time, and track the precise
frequency of the counter as it changes with environmental conditions.
When a guest is live migrated, anything it knows about the frequency of
the underlying counter becomes invalid. It may move from a host where
the counter running at -50PPM of its nominal frequency, to a host where
it runs at +50PPM. There will also be a step change in the value of the
counter, as the correctness of its absolute value at migration is
limited by the accuracy of the source and destination host's time
synchronization.
The device exposes a shared memory region to guests, which can be mapped
all the way to userspace. In the first phase, this merely advertises a
'disruption_marker', which indicates that the guest should throw away any
NTP synchronization it thinks it has, and start again.
Because the region can be exposed all the way to userspace, applications
can still use time from a fast vDSO 'system call', and check the
disruption marker to be sure that their timestamp is indeed truthful.
The structure also allows for the precise time, as known by the host, to
be exposed directly to guests so that they don't have to wait for NTP to
resync from scratch.
The values and fields are based on the nascent virtio-rtc specification,
and the intent is that a version (hopefully precisely this version) of
this structure will be included as an optional part of that spec. In the
meantime, a simple ACPI device along the lines of VMGENID is perfectly
sufficient and is compatible with what's being shipped in certain
commercial hypervisors.
Linux guest support was merged into the 6.13-rc1 kernel:
https://git.kernel.org/torvalds/c/205032724226
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <07fd5e2f529098ad4d7cab1423fe9f4a03a9cc14.camel@infradead.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The QEMU source archive is including the sources downloaded from crates.io
in both tarball form (in subprojects/packagecache) and expanded/patched
form (in the subprojects directory). The former is the more authoritative
form, as it has a hash that can be verified in the wrap file and checked
against the download URL, so keep that one only. This works also with
--disable-download; when building QEMU for the first time from the
tarball, Meson will print something like
Using proc-macro2-1-rs source from cache.
for each subproject, and then go on to extract the tarball and apply the
overlay or the patches in subprojects/packagefiles.
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2719
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
rustc will check that every reachable #[cfg] matches a list of
the expected config names and values. Recent versions of rustc are
also complaining about #[cfg(test)], even if it is basically a standard
part of the language. So, always allow it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently, if an array of pointers contains a NULL pointer, that
pointer will be encoded as '0' in the stream. Since the JSON writer
doesn't define a "pointer" type, that '0' will now be an uint8, which
is different from the original type being pointed to, e.g. struct.
(we're further calling uint8 "nullptr", but that's irrelevant to the
issue)
That mixed-type array shouldn't be compressed, otherwise data is lost
as the code currently makes the whole array have the type of the first
element:
css = {NULL, NULL, ..., 0x5555568a7940, NULL};
{"name": "s390_css", "instance_id": 0, "vmsd_name": "s390_css",
"version": 1, "fields": [
...,
{"name": "css", "array_len": 256, "type": "nullptr", "size": 1},
...,
]}
In the above, the valid pointer at position 254 got lost among the
compressed array of nullptr.
While we could disable the array compression when a NULL pointer is
found, the JSON part of the stream still makes part of downtime, so we
should avoid writing unecessary bytes to it.
Keep the array compression in place, but if NULL and non-NULL pointers
are mixed break the array into several type-contiguous pieces :
css = {NULL, NULL, ..., 0x5555568a7940, NULL};
{"name": "s390_css", "instance_id": 0, "vmsd_name": "s390_css",
"version": 1, "fields": [
...,
{"name": "css", "array_len": 254, "type": "nullptr", "size": 1},
{"name": "css", "type": "struct", "struct": {"vmsd_name": "s390_css_img", ... }, "size": 768},
{"name": "css", "type": "nullptr", "size": 1},
...,
]}
Now each type-discontiguous region will become a new JSON entry. The
reader should interpret this as a concatenation of values, all part of
the same field.
Parsing the JSON with analyze-script.py now shows the proper data
being pointed to at the places where the pointer is valid and
"nullptr" where there's NULL:
"s390_css (14)": {
...
"css": [
"nullptr",
"nullptr",
...
"nullptr",
{
"chpids": [
{
"in_use": "0x00",
"type": "0x00",
"is_virtual": "0x00"
},
...
]
},
"nullptr",
}
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20250109185249.23952-7-farosas@suse.de>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Rename vmstate_info_nullptr from "uint64_t" to "nullptr". This vmstate
actually reads and writes just a byte, so the proper name would be
uint8. However, since this is a marker for a NULL pointer, it's
convenient to have a more explicit name that can be identified by the
consumers of the JSON part of the stream.
Change the name to "nullptr" and add support for it in the
analyze-migration.py script. Arbitrarily use the name of the type as
the value of the field to avoid the script showing 0x30 or '0', which
could be confusing for readers.
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20250109185249.23952-5-farosas@suse.de>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
The parsing for the S390StorageAttributes section is currently leaving
an unconsumed token that is later interpreted by the generic code as
QEMU_VM_EOF, cutting the parsing short.
The migration will issue a STATTR_FLAG_DONE between iterations, which
the script consumes correctly, but there's a final STATTR_FLAG_EOS at
.save_complete that the script is ignoring. Since the EOS flag is a
u64 0x1ULL and the stream is big endian, on little endian hosts a byte
read from it will be 0x0, the same as QEMU_VM_EOF.
Fixes: 81c2c9dd5d ("tests/qtest/migration-test: Fix analyze-migration.py for s390x")
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20250109185249.23952-4-farosas@suse.de>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
The analyze-migration script was seen failing in s390x in misterious
ways. It seems we're reaching the VMSDFieldStruct constructor without
any fields, which would indicate an empty .subsection entry, a
VMSTATE_STRUCT with no fields or a vmsd with no fields. We don't have
any of those, at least not without the unmigratable flag set, so this
should never happen.
Add some debug statements so that we can see what's going on the next
time the issue happens.
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20250109185249.23952-2-farosas@suse.de>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Make sure the error log of fsfreeze hooks
when freeze/thaw/snapshot could be logged
to system logs if the default logfile of
qga can't be written or other situations
Signed-off-by: Dehan Meng <demeng@redhat.com>
Reviewed-by: Yan Vugenfirer <yvugenfi@redhat.com>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Message-ID: <20241225083744.277374-1-demeng@redhat.com>
Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Headers in include/sysemu/ are not only related to system
*emulation*, they are also used by virtualization. Rename
as system/ which is clearer.
Files renamed manually then mechanical change using sed tool.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Lei Yang <leiyang@redhat.com>
Message-Id: <20241203172445.28576-1-philmd@linaro.org>
- TIMEOUT_MULTIPLIER setting to allow tests to take longer when asan is enabled
- New qtest_system_reset() wrapper to properly wait for a system reset
- Split of migration-test.c into multiple files under qtest/migration/
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Merge tag 'qtest-20241212-pull-request' of https://gitlab.com/farosas/qemu into staging
Qtest pull request
- TIMEOUT_MULTIPLIER setting to allow tests to take longer when asan is enabled
- New qtest_system_reset() wrapper to properly wait for a system reset
- Split of migration-test.c into multiple files under qtest/migration/
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# gpg: Signature made Thu 12 Dec 2024 10:05:50 EST
# gpg: using RSA key AA1B48B0A22326A5A4C364CFC798DC741BEC319D
# gpg: issuer "farosas@suse.de"
# gpg: Good signature from "Fabiano Rosas <farosas@suse.de>" [unknown]
# gpg: aka "Fabiano Almeida Rosas <fabiano.rosas@suse.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: AA1B 48B0 A223 26A5 A4C3 64CF C798 DC74 1BEC 319D
* tag 'qtest-20241212-pull-request' of https://gitlab.com/farosas/qemu: (22 commits)
tests/qtest/migration: Split validation tests + misc
tests/qtest/migration-test: Fix and enable test_ignore_shared
tests/qtest/migration: Split CPR tests
tests/qtest/migration: Split precopy tests
tests/qtest/migration: Split file tests
tests/qtest/migration: Split postcopy tests
tests/qtest/migration: Split compression tests from migration-test.c
tests/qtest/migration: Split TLS tests from migration-test.c
tests/qtest/migration: Move common test code
tests/qtest/migration: Isolate test initialization
tests/qtest/migration: Move kvm_dirty_ring_supported to utils
tests/qtest/migration: Move ufd_version_check to utils
tests/qtest/migration: Rename migration-helpers.c
tests/qtest/migration: Move qmp helpers to a separate file
tests/qtest/migration: Move bootfile code to its own file
tests/migration: Disambiguate guestperf vs. a-b
tests/qtest/migration: Stop calling everything "test"
tests/qtest/migration: Standardize hook names
tests/qtest: Use qtest_system_reset_nowait() where appropriate
tests/qtest: Use qtest_system_reset() instead of open-coded versions
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Some tests need more time when qemu is built with
"--enable-asan --enable-ubsan"
As was discussed here:
https://patchew.org/QEMU/20241112120100.176492-2-frolov@swemel.ru/
TIMEOUT_MULTIPLIER enviroment variable will be
a useful option, allowing non-invasive timeouts
increasing for a specific build.
Signed-off-by: Dmitry Frolov <frolov@swemel.ru>
Tested-by: Fabiano Rosas <farosas@suse.de>
[changed from ifndef to ?=]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Deprecate MakeTypeRegisterStatic and MakeTypeRegisterNotStatic because
type_register() will be deprecated, then only type_register_static()
is used.
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20241029085934.2799066-16-zhao1.liu@intel.com
Make Cargo use unknown_lints = "allow" as well. This is more future
proof as we might add new lints to rust/Cargo.toml that are not supported
by older versions of rustc or clippy.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
An extra benefit of workspaces is that they allow to place lint level
settings in a single Cargo.toml; the settings are then inherited by
packages in the workspace.
Correspondingly, teach rustc_args.py to get the unexpected_cfgs
configuration from the workspace Cargo.toml.
Note that it is still possible to allow or deny warnings per crate or
module, via the #![] attribute syntax. The rust/qemu-api/src/bindings.rs
file is an example.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cargo.toml makes it possible to describe the desired lint level settings
in a nice format. We can extend this to Meson-built crates, by teaching
rustc_args.py to fetch lint and --check-cfg arguments from Cargo.toml.
--check-cfg arguments come from the unexpected_cfgs lint as well as crate
features
Start with qemu-api, since it already has a [lints.rust] table and
an invocation of rustc_args.py.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Parse the Cargo.toml file, looking for the unexpected_cfgs
configuration. When generating --cfg options from the
config-host.h file, only use those that are included in the
configuration.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Instead of using a static file (error prone and hard to keep in sync),
we generate it using a script.
Note: if a symbol is not exported, we'll now notice it when linking for
Windows/MacOS platforms.
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20241112212622.3590693-3-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241121165806.476008-37-alex.bennee@linaro.org>
checkpatch.pl lints for spaces around operators including / (slash).
Code lines starting with #include are ignored, as slashes in those
represent path separators.
In Objective-C code, #import is often used in preference to #include,
as preprocessor-based multiple-#include defenses are considered
non-idiomatic in that language.
This change extends checkpatch.pl to treat #import lines in the same
way as #include, avoiding false positives for "missing" spaces
around path separators on those lines.
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Message-ID: <20241024123555.25861-1-phil@philjordan.eu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
* rust: integration tests
* rust/pl011: add support for migration
* rust/pl011: add TYPE_PL011_LUMINARY device
* rust: add support for older compilers and bindgen
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Merge tag 'for-upstream-rust' of https://gitlab.com/bonzini/qemu into staging
* rust: cleanups
* rust: integration tests
* rust/pl011: add support for migration
* rust/pl011: add TYPE_PL011_LUMINARY device
* rust: add support for older compilers and bindgen
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# gpg: Signature made Wed 06 Nov 2024 18:00:50 GMT
# 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-rust' of https://gitlab.com/bonzini/qemu: (39 commits)
dockerfiles: install bindgen from cargo on Ubuntu 22.04
rust: make rustfmt optional
rust: allow older version of bindgen
rust: do not use --generate-cstr
rust: allow version 1.63.0 of rustc
rust: clean up detection of the language
rust: do not use MaybeUninit::zeroed()
rust: introduce alternative implementation of offset_of!
rust: create a cargo workspace
rust: synchronize dependencies between subprojects and Cargo.lock
rust: silence unknown warnings for the sake of old compilers
rust: introduce a c_str macro
rust: use std::os::raw instead of core::ffi
rust: fix cfgs of proc-macro2 for 1.63.0
rust: patch bilge-impl to allow compilation with 1.63.0
rust/pl011: Use correct masks for IBRD and FBRD
rust/pl011: remove commented out C code
rust/pl011: add TYPE_PL011_LUMINARY device
rust/pl011: move CLK_NAME static to function scope
rust/pl011: add support for migration
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Because Ubuntu 22.04 has a very old version of bindgen, that
does not have the important option --allowlist-file, it will
not be able to use --enable-rust out of the box. Instead,
install the latest version of bindgen-cli via "cargo install"
in the container, following QEMU's own documentation.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Occasionally, we may need to silence warnings and clippy lints that
were only introduced in newer Rust compiler versions. However, this
would fail when compiling with an older rustc:
error: unknown lint: `non_local_definitions`
--> rust/qemu-api/rust-qemu-api-tests.p/structured/offset_of.rs:79:17
So by default we need to block the unknown_lints warning. To avoid
misspelled lints or other similar issues, re-enable it in the CI job
that uses nightly rust.
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit adds a re-implementation of hw/char/pl011.c in Rust.
How to build:
1. Configure a QEMU build with:
--enable-system --target-list=aarch64-softmmu --enable-rust
2. Launching a VM with qemu-system-aarch64 should use the Rust version
of the pl011 device
Co-authored-by: Junjie Mao <junjie.mao@intel.com>
Co-authored-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20241024-rust-round-2-v1-2-051e7a25b978@linaro.org
Patch was applied with invalid authorship by accident, which confuses
git tooling that look at git blame for contributors etc.
Patch will be re-applied with correct authorship right after this
commit.
This reverts commit d0f0cd5b1f.
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20241024-rust-round-2-v1-1-051e7a25b978@linaro.org
Some applications want to use low priority realtime signals (e.g.,
SIGRTMAX). Currently QEMU cannot map all target realtime signals to
host realtime signals, and chooses to sacrifice the end of the target
realtime signal range.
Allow users to choose how to map target realtime signals to host
realtime signals using the new -t option, the new QEMU_RTSIG_MAP
environment variable, and the new -Drtsig_map=\"...\" meson flag.
To simplify things, the meson flag is not per-target, because the
intended use case is app-specific qemu-user builds.
The mapping is specified using the "tsig hsig count[,...]" syntax.
Target realtime signals [tsig,tsig+count) are mapped to host realtime
signals [hsig,hsig+count). Care is taken to avoid double and
out-of-range mappings.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20241029232211.206766-2-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Merge tag 'pull-loongarch-20241102' of https://gitlab.com/gaosong/qemu into staging
pull-loongarch-20241102
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# gpg: Signature made Sat 02 Nov 2024 07:57:18 GMT
# gpg: using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B8FF 1DA0 D2FD CB2D A09C 6C2C 40A2 FFF2 3926 3EDF
* tag 'pull-loongarch-20241102' of https://gitlab.com/gaosong/qemu:
target/loongarch: Add steal time support on migration
hw/loongarch/boot: Use warn_report when no kernel filename
linux-headers: Update to Linux v6.12-rc5
linux-headers: loongarch: Add kvm_para.h
linux-headers: Add unistd_64.h
target/loongarch/kvm: Implement LoongArch PMU extension
target/loongarch: Implement lbt registers save/restore function
target/loongarch: Add loongson binary translation feature
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
KVM LBT supports on LoongArch depends on the linux-header file
kvm_para.h, add header file kvm_para.h here.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20241028023809.1554405-3-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
since 6.11, unistd.h includes header file unistd_64.h directly on
some platforms, here add unistd_64.h on these platforms. Affected
platforms are ARM64, LoongArch64 and Riscv. Otherwise there will
be compiling error such as:
linux-headers/asm/unistd.h:3:10: fatal error: asm/unistd_64.h: No such file or directory
#include <asm/unistd_64.h>
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20241028023809.1554405-2-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
libcbor dependecy is necessary for adding virtio-nsm and nitro-enclave
machine support in the following commits. libvirt-ci has already been
updated with the dependency upstream and this commit updates libvirt-ci
submodule in QEMU to latest upstream. Also the libcbor dependency has
been added to tests/lcitool/projects/qemu.yml.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com>
Reviewed-by: Alexander Graf <graf@amazon.com>
Link: https://lore.kernel.org/r/20241008211727.49088-2-dorjoychy111@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This file was created by mistake in recent ed7667188 (9p: remove
'proxy' filesystem backend driver).
When cloning the repository using native git for windows, we see this:
Error: error: invalid path 'scripts/meson-buildoptions.'
Error: The process 'C:\Program Files\Git\bin\git.exe' failed with exit code 128
Link: https://lore.kernel.org/r/20241023073914.895438-1-pierrick.bouvier@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Although we're not enabling rust by default yet, we can still add
rust and bindgen to the CI package list.
This demonstrates that we're not accidentally triggering unexpected
build behaviour merely from Rust being present. When we do dev work
to enable rust by default, this will show we're building correctly
on all platforms we target.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Link: https://lore.kernel.org/r/20241015133925.311587-2-berrange@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The arguments in MESONINTROSPECT are quoted with shlex.quote() so it
must be parsed with shlex.split(). Otherwise the script will fail if
the build directory has a character like "~" in it.
Note: this fix cannot be backported directly to any stable branch
that doesn't require Meson version 1.4.0 or better; otherwise it will
work OK on Linux but will break on Windows hosts.
(Unfortunately, Meson prior to version 1.4.0 was inconsistent between
host OSes about how it quoted arguments, and used a different quoting
process on Windows hosts. Our current git trunk already requires
1.5.0 as of commit 07f0d32641 ("Require meson version 1.5.0"), but
the stable branches are still on older Meson.)
Fixes: cf60ccc330 ("cutils: Introduce bundle mechanism")
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Tested-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-id: 20241018130852.931509-1-peter.maydell@linaro.org
[PMM: Updated commit message to give all the detail about the
Meson version compability requirements.]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use list and set comprehension to simplify code. Also, gently handle
invalid gdb filenames.
Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20241015145848.387281-1-gustavo.romero@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-16-alex.bennee@linaro.org>
We were missing s390x here. There isn't much point testing for the
architecture here as we will fail anyway if the appropriate package
list is missing.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241023113406.1284676-7-alex.bennee@linaro.org>
This commit adds a re-implementation of hw/char/pl011.c in Rust.
How to build:
1. Configure a QEMU build with:
--enable-system --target-list=aarch64-softmmu --enable-rust
2. Launching a VM with qemu-system-aarch64 should use the Rust version
of the pl011 device
Co-authored-by: Junjie Mao <junjie.mao@intel.com>
Co-authored-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Link: https://lore.kernel.org/r/6ec1d4fb8db2a1d7ba94c73e65d9770371b7857d.1727961605.git.manos.pitsidianakis@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit adds a helper crate library, qemu-api-macros for derive (and
other procedural) macros to be used along qemu-api.
It needs to be a separate library because in Rust, procedural macros, or
macros that can generate arbitrary code, need to be special separate
compilation units.
Only one macro is introduced in this patch, #[derive(Object)]. It
generates a constructor to register a QOM TypeInfo on init and it must
be used on types that implement qemu_api::definitions::ObjectImpl trait.
Reviewed-by: Junjie Mao <junjie.mao@hotmail.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Link: https://lore.kernel.org/r/dd645642406a6dc2060c6f3f17db2bc77ed67b59.1727961605.git.manos.pitsidianakis@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Rust subprojects have the semantic version (followed by -rs) in the subproject
name, but the full version (without -rs) is used by crates.io for the root
directory of the tarball. Teach scripts/archive-source.sh to look for the
root directory name in wrap files.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add bindings_rs target for generating rust bindings to target-independent
qemu C APIs.
The bindings need be created before any rust crate that uses them is
compiled.
The bindings.rs file will end up in BUILDDIR/bindings.rs and have the
same name as a target:
ninja bindings.rs
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Link: https://lore.kernel.org/r/1be89a27719049b7203eaf2eca8bbb75b33f18d4.1727961605.git.manos.pitsidianakis@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
While debugging an invalid configuration, I noticed that the clauses debug
ends up on stderr but the header ("The following clauses were found..."
ends up on stdout. This makes the contents of meson-logs/meson-log.txt
a bit confusing.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
