Commit graph

119803 commits

Author SHA1 Message Date
John Snow
e93d29d27e docs/qapi-domain: add QAPI index
Use the QAPI object registry to generate a special index just for QAPI
definitions. The index can show entries both by definition type and all
together, alphabetically.

The index can be linked from anywhere in the QEMU manual by using the
reference `qapi-index`.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20250311034303.75779-7-jsnow@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-03-11 10:07:02 +01:00
John Snow
36ceafad9e docs/qapi-domain: add QAPI domain object registry
This is the first step towards QAPI domain cross-references and a QAPI
reference index.

This patch just creates the object registry, and updates the
merge_domaindata stub method now that we have actual data we may need to
merge.

Note that how to handle merge conflict resolution is unhandled, as the
Sphinx python domain itself does not handle it either. I do not know how
to intentionally trigger it, so I've left an assertion instead if it
should ever come up ...

Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20250311034303.75779-6-jsnow@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-03-11 10:07:02 +01:00
John Snow
abf6bedc38 docs/sphinx: add compat.py module and nested_parse helper
Create a compat module that handles sphinx cross-version compatibility
issues. For the inaugural function, add a nested_parse_with_titles()
helper that handles differences in line number tracking for nested
directive body parsing.

Spoilers: there are more cross-version hacks to come throughout the
series.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20250311034303.75779-5-jsnow@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-03-11 10:07:02 +01:00
John Snow
ecf92e3618 docs/sphinx: create QAPI domain extension stub
A Sphinx domain is a collection of directive and role extensions meant
to facilitate the documentation of a specific language. For instance,
Sphinx ships with "python" and "cpp" domains. This patch introduces a
stub for the "qapi" language domain.

Please see https://www.sphinx-doc.org/en/master/usage/domains/index.html
for more information.

This stub doesn't really do anything yet, we'll get to it brick-by-brick
in the forthcoming commits to keep the series breezy and the git history
informative.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20250311034303.75779-4-jsnow@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-03-11 10:07:02 +01:00
Stefan Hajnoczi
825b96dbce Migration pull request
- Fix use-after-free in incoming migration
 - Improve cpr migration blocker for volatile ram
 - Fix RDMA migration
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Merge tag 'migration-20250310-pull-request' of https://gitlab.com/farosas/qemu into staging

Migration pull request

- Fix use-after-free in incoming migration
- Improve cpr migration blocker for volatile ram
- Fix RDMA migration

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# gpg: Signature made Tue 11 Mar 2025 06:30:56 HKT
# 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 'migration-20250310-pull-request' of https://gitlab.com/farosas/qemu:
  migration: Prioritize RDMA in ram_save_target_page()
  migration: ram block cpr blockers
  migration: Fix UAF for incoming migration on MigrationState

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-03-11 09:32:07 +08:00
Stefan Hajnoczi
1a5f3d2eee Xen queue:
* xen/passthrough: use gsi to map pirq when dom0 is PVH
 * Fix missing xenstore node from xen-block backend
 * Fix xen mapcache extraneous invalidate
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Merge tag 'pull-xen-20250310' of https://xenbits.xen.org/git-http/people/aperard/qemu-dm into staging

Xen queue:

* xen/passthrough: use gsi to map pirq when dom0 is PVH
* Fix missing xenstore node from xen-block backend
* Fix xen mapcache extraneous invalidate

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# gpg: Signature made Mon 10 Mar 2025 22:42:57 HKT
# gpg:                using RSA key F80C006308E22CFD8A92E7980CF5572FD7FB55AF
# gpg: Good signature from "Anthony PERARD <anthony.perard@gmail.com>" [unknown]
# gpg:                 aka "Anthony PERARD <anthony.perard@vates.tech>" [unknown]
# gpg:                 aka "Anthony PERARD <anthony@xenproject.org>" [unknown]
# gpg:                 aka "Anthony PERARD <anthony.perard@citrix.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: 5379 2F71 024C 600F 778A  7161 D8D5 7199 DF83 42C8
#      Subkey fingerprint: F80C 0063 08E2 2CFD 8A92  E798 0CF5 572F D7FB 55AF

* tag 'pull-xen-20250310' of https://xenbits.xen.org/git-http/people/aperard/qemu-dm:
  xen: No need to flush the mapcache for grants
  hw/xen: Add "mode" parameter to xen-block devices
  xen/passthrough: use gsi to map pirq when dom0 is PVH

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-03-11 09:31:36 +08:00
Stefan Hajnoczi
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Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

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# gpg: Signature made Mon 10 Mar 2025 20:12:41 HKT
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# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* tag 'net-pull-request' of https://github.com/jasowang/qemu:
  tap-linux: Open ipvtap and macvtap
  Revert "hw/net/net_tx_pkt: Fix overrun in update_sctp_checksum()"
  util/iov: Do not assert offset is in iov
  net: move backend cleanup to NIC cleanup
  net: parameterize the removing client from nc list

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-03-11 09:26:40 +08:00
Stefan Hajnoczi
6d1829fce4 functional and tcg tests, plugins and MAINTAINERS
- update and expand aarch64 GPU tests
   - fix build dependence for plugins
   - update libvirt-ci to vulkan-tools
   - allow plugin tests to run on non-POSIX systems
   - tweak test/vm times
   - mark test-vma as linux only
   - various compiler fixes for tcg tests
   - add gitlab build unit tracker
   - error out early on stalled RME tests
   - compile core plugin code once
   - update MAINTAINERS
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Merge tag 'pull-10.0-for-softfreeze-100325-3' of https://gitlab.com/stsquad/qemu into staging

functional and tcg tests, plugins and MAINTAINERS

  - update and expand aarch64 GPU tests
  - fix build dependence for plugins
  - update libvirt-ci to vulkan-tools
  - allow plugin tests to run on non-POSIX systems
  - tweak test/vm times
  - mark test-vma as linux only
  - various compiler fixes for tcg tests
  - add gitlab build unit tracker
  - error out early on stalled RME tests
  - compile core plugin code once
  - update MAINTAINERS

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# gpg: Signature made Mon 10 Mar 2025 18:43:03 HKT
# 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-for-softfreeze-100325-3' of https://gitlab.com/stsquad/qemu: (31 commits)
  MAINTAINERS: remove widely sanctioned entities
  plugins/core: make a single build unit
  plugins/api: build only once
  plugins/api: split out time control helpers
  plugins/api: split out the vaddr/hwaddr helpers
  plugins/api: split out binary path/start/end/entry code
  plugins/loader: compile loader only once
  plugins/plugin.h: include queue.h
  plugins/api: clean-up the includes
  include/qemu: plugin-memory.h doesn't need cpu-defs.h
  plugins/loader: populate target_name with target_name()
  plugins/api: use qemu_target_page_mask() to get value
  tests/functional: add boot error detection for RME tests
  gitlab: add a new build_unit job to track build size
  tests/tcg: Suppress compiler false-positive warning on sha1.c
  tests/tcg: enable -fwrapv for test-i386-bmi
  tests/tcg: fix constraints in test-i386-adcox
  tests/tcg: add message to _Static_assert in test-avx
  tests/tcg: mark test-vma as a linux-only test
  tests/vm: bump timeout for shutdown
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-03-11 09:26:15 +08:00
Li Zhijian
baa41af1c0 migration: Prioritize RDMA in ram_save_target_page()
Address an error in RDMA-based migration by ensuring RDMA is prioritized
when saving pages in `ram_save_target_page()`.

Previously, the RDMA protocol's page-saving step was placed after other
protocols due to a refactoring in commit bc38dc2f5f. This led to migration
failures characterized by unknown control messages and state loading errors
destination:
(qemu) qemu-system-x86_64: Unknown control message QEMU FILE
qemu-system-x86_64: error while loading state section id 1(ram)
qemu-system-x86_64: load of migration failed: Operation not permitted
source:
(qemu) qemu-system-x86_64: RDMA is in an error state waiting migration to abort!
qemu-system-x86_64: failed to save SaveStateEntry with id(name): 1(ram): -1
qemu-system-x86_64: rdma migration: recv polling control error!
qemu-system-x86_64: warning: Early error. Sending error.
qemu-system-x86_64: warning: rdma migration: send polling control error

RDMA migration implemented its own protocol/method to send pages to
destination side, hand over to RDMA first to prevent pages being saved by
other protocol.

Fixes: bc38dc2f5f ("migration: refactor ram_save_target_page functions")
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Message-ID: <20250305062825.772629-2-lizhijian@fujitsu.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2025-03-10 12:09:24 -03:00
Steve Sistare
094a3dbc55 migration: ram block cpr blockers
Unlike cpr-reboot mode, cpr-transfer mode cannot save volatile ram blocks
in the migration stream file and recreate them later, because the physical
memory for the blocks is pinned and registered for vfio.  Add a blocker
for volatile ram blocks.

Also add a blocker for RAM_GUEST_MEMFD.  Preserving guest_memfd may be
sufficient for CPR, but it has not been tested yet.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-ID: <1740667681-257312-1-git-send-email-steven.sistare@oracle.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2025-03-10 12:09:24 -03:00
Peter Xu
d657a14de5 migration: Fix UAF for incoming migration on MigrationState
On the incoming migration side, QEMU uses a coroutine to load all the VM
states.  Inside, it may reference MigrationState on global states like
migration capabilities, parameters, error state, shared mutexes and more.

However there's nothing yet to make sure MigrationState won't get
destroyed (e.g. after migration_shutdown()).  Meanwhile there's also no API
available to remove the incoming coroutine in migration_shutdown(),
avoiding it to access the freed elements.

There's a bug report showing this can happen and crash dest QEMU when
migration is cancelled on source.

When it happens, the dest main thread is trying to cleanup everything:

  #0  qemu_aio_coroutine_enter
  #1  aio_dispatch_handler
  #2  aio_poll
  #3  monitor_cleanup
  #4  qemu_cleanup
  #5  qemu_default_main

Then it found the migration incoming coroutine, schedule it (even after
migration_shutdown()), causing crash:

  #0  __pthread_kill_implementation
  #1  __pthread_kill_internal
  #2  __GI_raise
  #3  __GI_abort
  #4  __assert_fail_base
  #5  __assert_fail
  #6  qemu_mutex_lock_impl
  #7  qemu_lockable_mutex_lock
  #8  qemu_lockable_lock
  #9  qemu_lockable_auto_lock
  #10 migrate_set_error
  #11 process_incoming_migration_co
  #12 coroutine_trampoline

To fix it, take a refcount after an incoming setup is properly done when
qmp_migrate_incoming() succeeded the 1st time.  As it's during a QMP
handler which needs BQL, it means the main loop is still alive (without
going into cleanups, which also needs BQL).

Releasing the refcount now only until the incoming migration coroutine
finished or failed.  Hence the refcount is valid for both (1) setup phase
of incoming ports, mostly IO watches (e.g. qio_channel_add_watch_full()),
and (2) the incoming coroutine itself (process_incoming_migration_co()).

Note that we can't unref in migration_incoming_state_destroy(), because
both qmp_xen_load_devices_state() and load_snapshot() will use it without
an incoming migration.  Those hold BQL so they're not prone to this issue.

PS: I suspect nobody uses Xen's command at all, as it didn't register yank,
hence AFAIU the command should crash on master when trying to unregister
yank in migration_incoming_state_destroy()..  but that's another story.

Also note that in some incoming failure cases we may not always unref the
MigrationState refcount, which is a trade-off to keep things simple.  We
could make it accurate, but it can be an overkill.  Some examples:

  - Unlike most of the rest protocols, socket_start_incoming_migration()
    may create net listener after incoming port setup sucessfully.
    It means we can't unref in migration_channel_process_incoming() as a
    generic path because socket protocol might keep using MigrationState.

  - For either socket or file, multiple IO watches might be created, it
    means logically each IO watch needs to take one refcount for
    MigrationState so as to be 100% accurate on ownership of refcount taken.

In general, we at least need per-protocol handling to make it accurate,
which can be an overkill if we know incoming failed after all.  Add a short
comment to explain that when taking the refcount in qmp_migrate_incoming().

Bugzilla: https://issues.redhat.com/browse/RHEL-69775
Tested-by: Yan Fu <yafu@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Message-ID: <20250220132459.512610-1-peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2025-03-10 12:09:24 -03:00
Stefano Stabellini
68adcc784b xen: No need to flush the mapcache for grants
On IOREQ_TYPE_INVALIDATE we need to invalidate the mapcache for regular
mappings. Since recently we started reusing the mapcache also to keep
track of grants mappings. However, there is no need to remove grant
mappings on IOREQ_TYPE_INVALIDATE requests, we shouldn't do that. So
remove the function call.

Fixes: 9ecdd4bf08 (xen: mapcache: Add support for grant mappings)
Cc: qemu-stable@nongnu.org
Reported-by: Olaf Hering <olaf@aepfle.de>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Anthony PERARD <anthony.perard@vates.tech>
Message-Id: <20250206194915.3357743-2-edgar.iglesias@gmail.com>
Signed-off-by: Anthony PERARD <anthony.perard@vates.tech>
2025-03-10 13:28:03 +01:00
David Woodhouse
4173b3d837 hw/xen: Add "mode" parameter to xen-block devices
Block devices don't work in PV Grub (0.9x) if there is no mode specified. It
complains: "Error ENOENT when reading the mode"

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <20250207143724.30792-2-dwmw2@infradead.org>
Signed-off-by: Anthony PERARD <anthony.perard@vates.tech>
2025-03-10 13:27:30 +01:00
Jiqian Chen
cfcacbab38 xen/passthrough: use gsi to map pirq when dom0 is PVH
In PVH dom0, when passthrough a device to domU, QEMU code
xen_pt_realize->xc_physdev_map_pirq wants to use gsi, but in current codes
the gsi number is got from file /sys/bus/pci/devices/<sbdf>/irq, that is
wrong, because irq is not equal with gsi, they are in different spaces, so
pirq mapping fails.

To solve above problem, use new interface of Xen, xc_pcidev_get_gsi to get
gsi and use xc_physdev_map_pirq_gsi to map pirq when dom0 is PVH.

Signed-off-by: Jiqian Chen <Jiqian.Chen@amd.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Jiqian Chen <Jiqian.Chen@amd.com>
Acked-by: Anthony PERARD <anthony@xenproject.org>
Reviewed-by: Stewart Hildebrand <stewart.hildebrand@amd.com>
Message-Id: <20241106061418.3655304-1-Jiqian.Chen@amd.com>
Signed-off-by: Anthony PERARD <anthony.perard@vates.tech>
2025-03-10 13:25:14 +01:00
Alex Bennée
0d3dea7d7a MAINTAINERS: remove widely sanctioned entities
The following organisations appear on the US sanctions list:

  Yadro: https://sanctionssearch.ofac.treas.gov/Details.aspx?id=41125
  ISPRAS: https://sanctionssearch.ofac.treas.gov/Details.aspx?id=50890

As a result maintainers interacting with such entities would face
legal risk in a number of jurisdictions. To reduce the risk of
inadvertent non-compliance remove entries from these organisations
from the MAINTAINERS file.

Mark the pcf8574 system as orphaned until someone volunteers to step
up as a maintainer. Add myself as a second reviewer to record/replay
so I can help with what odd fixes I can.

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-32-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
606ad7fe17 plugins/core: make a single build unit
Trim through the includes and remove everything not needed for the
core. Only include tcg-op-common.h to remove the need to
TARGET_LONG_BITS and move the build unit into the common set.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-31-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
40988ed9df plugins/api: build only once
Now all the softmmu/user-mode stuff has been split out we can build
this compilation unit only once.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-30-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
1d3e745f7a plugins/api: split out time control helpers
These are only usable in system mode where we control the timer. For
user-mode make them NOPs.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-29-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
455a2d265c plugins/api: split out the vaddr/hwaddr helpers
These only work for system-mode and are NOPs for user-mode.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-28-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
903e870f24 plugins/api: split out binary path/start/end/entry code
To move the main api.c to a single build compilation object we need to
start splitting out user and system specific code. As we need to grob
around host headers we move these particular helpers into the *-user
mode directories.

The binary/start/end/entry helpers are all NOPs for system mode.

While using the plugin-api.c.inc trick means we build for both
linux-user and bsd-user the BSD user-mode command line is still
missing -plugin. This can be enabled once we have reliable check-tcg
tests working for the BSDs.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-27-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
8c15f6e435 plugins/loader: compile loader only once
There is very little in loader that is different between builds save
for a tiny user/system mode difference in the plugin_info structure.
Create two new files, user and system to hold mode specific helpers
and move loader into common_ss.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-26-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
5dd09b8157 plugins/plugin.h: include queue.h
Headers should bring in what they need so don't rely on getting
queue.h by side effects. This will help with clean-ups in the
following patches.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-25-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
f85a28dedf plugins/api: clean-up the includes
Thanks to re-factoring and clean-up work (especially to exec-all) we
no longer need such broad headers for the api.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-24-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
4752ed5272 include/qemu: plugin-memory.h doesn't need cpu-defs.h
hwaddr is a fixed size on all builds.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-23-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
1d9a974358 plugins/loader: populate target_name with target_name()
We have a function we can call for this, lets not rely on macros that
stop us building once.

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: <20250304222439.2035603-22-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
9d06b0ccb1 plugins/api: use qemu_target_page_mask() to get value
Requiring TARGET_PAGE_MASK to be defined gets in the way of building
this unit once. qemu_target_page_mask() will tell us what it is.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-21-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Pierrick Bouvier
2a8e8544b2 tests/functional: add boot error detection for RME tests
It was identified that those tests randomly fail with a synchronous
exception at boot (reported by EDK2).
While we solve this problem, report failure immediately so tests don't
timeout in CI.

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20250303185745.2504842-1-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-20-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
3df360cb03 gitlab: add a new build_unit job to track build size
We want to reduce the total number of build units in the system to get
on our way to a single binary. It will help to have some numbers so
lets add a job to gitlab to track our progress.

Cc: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Cc: Philippe Mathieu-Daudé <philmd@linaro.org>
Cc: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-19-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Peter Maydell
c05aec9d4a tests/tcg: Suppress compiler false-positive warning on sha1.c
GCC versions at least 12 through 15 incorrectly report a warning
about code in sha1.c:

tests/tcg/multiarch/sha1.c:161:13: warning: ‘SHA1Transform’ reading 64 bytes from a region of size 0 [-Wstringop-overread]
  161 |             SHA1Transform(context->state, &data[i]);
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This is a piece of stock library code for doing SHA1 which we've
simply copied, rather than writing ourselves. The bug has been
reported to upstream GCC (about a different library's use of this
code):
 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106709

For our test case, since this isn't our original code and there isn't
actually a bug in it, suppress the incorrect warning rather than
trying to modify the code to work around the compiler issue.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2328
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250227141343.1675415-1-peter.maydell@linaro.org>
[AJB: -Wno-unknown-warning-option for clang's sake]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-18-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
874c712dc1 tests/tcg: enable -fwrapv for test-i386-bmi
We allow things like:

  tests/tcg/i386/test-i386-bmi2.c:124:35: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
      assert(result == (mask & ~(-1 << 30)));

in the main code, so allow it for the test.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-17-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
77f005f954 tests/tcg: fix constraints in test-i386-adcox
Clang complains:

  clang -O2 -m64 -mcx16 /home/alex/lsrc/qemu.git/tests/tcg/i386/test-i386-adcox.c -o test-i386-adcox -static
  /home/alex/lsrc/qemu.git/tests/tcg/i386/test-i386-adcox.c:32:26: error: invalid input constraint '0' in asm
          : "r" ((REG)-1), "0" (flags), "1" (out_adcx), "2" (out_adox));
                           ^
  /home/alex/lsrc/qemu.git/tests/tcg/i386/test-i386-adcox.c:57:26: error: invalid input constraint '0' in asm
          : "r" ((REG)-1), "0" (flags), "1" (out_adcx), "2" (out_adox));
                           ^
  2 errors generated.

Pointing out a numbered input constraint can't point to a read/write
output [1]. Convert to a read-only input constraint to allow this.

[1] https://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20101101/036036.html

Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-16-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Alex Bennée
0cee7cfc24 tests/tcg: add message to _Static_assert in test-avx
In preparation for enabling clang and avoiding:

  error: '_Static_assert' with no message is a C2x extension [-Werror,-Wc2x-extensions]

let us just add the message to silence the warning.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-15-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
33629b82ae tests/tcg: mark test-vma as a linux-only test
The main multiarch tests should compile for any POSIX system, however
test-vma's usage of MAP_NORESERVE makes it a linux-only test. Simply
moving the source file is enough for the build logic to skip on BSD's.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-14-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
830bbfb965 tests/vm: bump timeout for shutdown
On my fairly beefy machine the timeout was triggering leaving a
corrupted disk image due to power being pulled before the disk had
synced. Triple the timeout to avoid this.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-13-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
4748be5e9d libvirt-ci: bump to latest for vulkan-tools
The alpine baseline has also been updated in the meantime so we need
to address that while we are at it.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-12-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Philippe Mathieu-Daudé
ed557cc544 tests/functional: Allow running TCG plugins tests on non-Linux/BSD hosts
Not all platforms use the '.so' suffix for shared libraries,
which is how plugins are built. Use the recently introduced
dso_suffix() helper to get the proper host suffix.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2804
Suggested-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20250220080215.49165-4-philmd@linaro.org>
[AJB: moved plugin_file into testcase.py]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-11-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Philippe Mathieu-Daudé
3a7b9054b8 tests/functional: Introduce the dso_suffix() helper
Introduce a helper to get the default shared library
suffix used on the host.

Suggested-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20250220080215.49165-3-philmd@linaro.org>
[AJB: dropped whitespace cmd.py damage]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-10-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Pierrick Bouvier
892b06c40e plugins: add explicit dependency in functional tests
./tests/functional/test_aarch64_tcg_plugins.py needs to have plugin
libinsn built. However, it's not listed as a dependency, so meson can't
know it needs to be built.

Thus, we keep track of all plugins, and add them as an explicit
dependency.

Fixes: 4c134d07b9 ("tests: add a new set of tests to exercise plugins")
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-9-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
d69178d370 tests/functional: update the aarch64_virg_gpu images
Update to the most recent aarch64_virt_gpu image. The principle
differences are:

  - target a v8.0 baseline CPU
  - latest vkmark (2025.1)
  - actually uses the rootfs (previously was initrd)
  - rootfs includes more testing tools for interactive use

See README.md in https://fileserver.linaro.org/s/ce5jXBFinPxtEdx for
details about the image creation and the buildroot config.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-8-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
8233f4f26d tests/functional: expand tests to cover virgl
Add two more test modes using glmark2-wayland to exercise the OpenGL
pass-through modes with virgl. Virgl can run with or without the
hostmem blob support. To avoid repeating ourselves too much we make
the initial pass a simple --validate pass.

We might want to eventually add more directed tests and individual
features later on but the glmark/vkmark tests are a good general
smoke test for accelerated 3D.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-7-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
9f7e493d11 tests/functional: skip vulkan tests with nVidia
While running the new GPU tests it was noted that the proprietary
nVidia driver barfed when run under the sanitiser:

  2025-02-20 11:13:08,226: [11:13:07.782] Output 'headless' attempts
  EOTF mode SDR and colorimetry mode default.
  2025-02-20 11:13:08,227: [11:13:07.784] Output 'headless' using color
  profile: stock sRGB color profile

  and that's the last thing it outputs.

  The sanitizer reports that when the framework sends the SIGTERM
  because of the timeout we get a write to a NULL pointer (but
  interesting not this time in an atexit callback):

  UndefinedBehaviorSanitizer:DEADLYSIGNAL
  ==471863==ERROR: UndefinedBehaviorSanitizer: SEGV on unknown address
  0x000000000000 (pc 0x7a18ceaafe80 bp 0x000000000000 sp 0x7ffe8e3ff6d0
  T471863)
  ==471863==The signal is caused by a WRITE memory access.
  ==471863==Hint: address points to the zero page.
      #0 0x7a18ceaafe80
  (/lib/x86_64-linux-gnu/libnvidia-eglcore.so.535.183.01+0x16afe80)
  (BuildId: 24b0d0b90369112e3de888a93eb8d7e00304a6db)
      #1 0x7a18ce9e72c0
  (/lib/x86_64-linux-gnu/libnvidia-eglcore.so.535.183.01+0x15e72c0)
  (BuildId: 24b0d0b90369112e3de888a93eb8d7e00304a6db)
      #2 0x7a18ce9f11bb
  (/lib/x86_64-linux-gnu/libnvidia-eglcore.so.535.183.01+0x15f11bb)
  (BuildId: 24b0d0b90369112e3de888a93eb8d7e00304a6db)
      #3 0x7a18ce6dc9d1
  (/lib/x86_64-linux-gnu/libnvidia-eglcore.so.535.183.01+0x12dc9d1)
  (BuildId: 24b0d0b90369112e3de888a93eb8d7e00304a6db)
      #4 0x7a18e7d15326 in vrend_renderer_create_fence
  /usr/src/virglrenderer-1.0.0-1ubuntu2/obj-x86_64-linux-gnu/../src/vrend_renderer.c:10883:26
      #5 0x55bfb6621871 in virtio_gpu_virgl_process_cmd

The #dri-devel channel confirmed:

  <digetx> stsquad: nv driver is known to not work with venus, don't use
      it for testing

So lets skip running the test to avoid known failures. As we now use
vulkaninfo to probe we also need to handle the case where there is no
Vulkan driver configured for the hardware.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Cc: Dmitry Osipenko <dmitry.osipenko@collabora.com>
[AJB: also skip if vulkaninfo can't find environment]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-6-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
4e4e6986b6 tests/functional: bail early if vkmark hangs
The message:

  MESA-VIRTIO: debug: stuck in fence wait with iter at %d

Seems to occur more often on debug builds. Rather than waiting for our
long timeout to hit we might as well bail as soon as we see the
message.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-5-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
94634fbc66 tests/functional: ensure we have a GPU device for tests
It's possible to build QEMU without support for the GL enabled GPU
devices and we can catch that earlier with an explicit check.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-4-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
868c7703e0 tests/functional: factor out common code in gpu test
In preparation for handling more tests split out the common machine
setup details from the test specific stuff and add a helper for
launching the weston test. Instead of searching for "vkmark score" we
set a custom PS1 and wait for a successful completion. This ensures we
capture the score in the console log which otherwise wouldn't log
anything.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-3-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
9a72282560 tests/functional: move aarch64 GPU test into own file
I want to expand the number of tests to cover a wide range of
configurations. That starts with splitting off from the normal virt
test from which it doesn't really share much code. We can also reduce
the timeout of the original virt test now it is now longer burdened
with testing the GPU.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-2-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Akihiko Odaki
ac2ff9b840 tap-linux: Open ipvtap and macvtap
ipvtap and macvtap create a file for each interface unlike tuntap, which
creates one file shared by all interfaces. Try to open a file dedicated
to the interface first for ipvtap and macvtap.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2025-03-10 17:07:16 +08:00
Akihiko Odaki
2938c36937 Revert "hw/net/net_tx_pkt: Fix overrun in update_sctp_checksum()"
This reverts commit 83ddb3dbba.

The added check is no longer necessary due to a change of
iov_from_buf().

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2025-03-10 17:07:16 +08:00
Akihiko Odaki
9dc64bd5a4 util/iov: Do not assert offset is in iov
iov_from_buf(), iov_to_buf(), iov_memset(), and iov_copy() asserts
that the given offset fits in the iov while tolerating the specified
number of bytes to operate with to be greater than the size of iov.
This is inconsistent so remove the assertions.

Asserting the offset fits in the iov makes sense if it is expected that
there are other operations that process the content before the offset
and the content is processed in order. Under this expectation, the
offset should point to the end of bytes that are previously processed
and fit in the iov. However, this expectation depends on the details of
the caller, and did not hold true at least one case and required code to
check iov_size(), which is added with commit 83ddb3dbba
("hw/net/net_tx_pkt: Fix overrun in update_sctp_checksum()").

Adding such a check is inefficient and error-prone. These functions
already tolerate the specified number of bytes to operate with to be
greater than the size of iov to avoid such checks so remove the
assertions to tolerate invalid offset as well. They return the number of
bytes they operated with so their callers can still check the returned
value to ensure there are sufficient space at the given offset.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2025-03-10 17:07:16 +08:00
Eugenio Pérez
e7891c575f net: move backend cleanup to NIC cleanup
Commit a0d7215e33 ("vhost-vdpa: do not cleanup the vdpa/vhost-net
structures if peer nic is present") effectively delayed the backend
cleanup, allowing the frontend or the guest to access it resources as
long as the frontend is still visible to the guest.

However it does not clean up the resources until the qemu process is
over.  This causes an effective leak if the device is deleted with
device_del, as there is no way to close the vdpa device.  This makes
impossible to re-add that device to this or other QEMU instances until
the first instance of QEMU is finished.

Move the cleanup from qemu_cleanup to the NIC deletion and to
net_cleanup.

Fixes: a0d7215e33 ("vhost-vdpa: do not cleanup the vdpa/vhost-net structures if peer nic is present")
Reported-by: Lei Yang <leiyang@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jonah Palmer <jonah.palmer@oracle.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2025-03-10 17:07:16 +08:00
Eugenio Pérez
db0d4017f9 net: parameterize the removing client from nc list
This change is used in later commits so we can avoid the removal of the
netclient if it is delayed.

No functional change intended.

Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2025-03-10 17:07:14 +08:00