Commit graph

113110 commits

Author SHA1 Message Date
Richard Henderson f230c793a5 tcg/arm: Support TCG_TARGET_HAS_tst_vec
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-22 19:05:26 -07:00
Richard Henderson b04574d44f tcg/aarch64: Support TCG_TARGET_HAS_tst_vec
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-22 19:05:25 -07:00
Richard Henderson 6975cc45c3 tcg: Expand TCG_COND_TST* if not TCG_TARGET_HAS_tst_vec
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-22 19:05:25 -07:00
Richard Henderson af8c14a254 tcg: Introduce TCG_TARGET_HAS_tst_vec
Prelude to supporting TCG_COND_TST* in vector comparisons.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-22 19:05:21 -07:00
Richard Henderson 7e1c004701 Migration pull request
- Li Zhijian's COLO minor fixes
 - Marc-André's virtio-gpu fix
 - Fiona's virtio-net USO fix
 - A couple of migration-test fixes from Thomas
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Merge tag 'migration-20240522-pull-request' of https://gitlab.com/farosas/qemu into staging

Migration pull request

- Li Zhijian's COLO minor fixes
- Marc-André's virtio-gpu fix
- Fiona's virtio-net USO fix
- A couple of migration-test fixes from Thomas

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* tag 'migration-20240522-pull-request' of https://gitlab.com/farosas/qemu:
  tests/qtest/migration-test: Fix the check for a successful run of analyze-migration.py
  tests/qtest/migration-test: Run some basic tests on s390x and ppc64 with TCG, too
  hw/core/machine: move compatibility flags for VirtIO-net USO to machine 8.1
  virtio-gpu: fix v2 migration
  migration: fix a typo
  migration: add "exists" info to load-state-field trace
  migration/colo: Tidy up bql_unlock() around bdrv_activate_all()
  migration/colo: make colo_incoming_co() return void
  migration/colo: Minor fix for colo error message

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-22 15:32:25 -07:00
Thomas Huth 8f023a0bd9 tests/qtest/migration-test: Fix the check for a successful run of analyze-migration.py
If analyze-migration.py cannot be run or crashes, the error is currently
ignored since the code only checks for nonzero values in case the child
exited properly. For example, if you run the test with a non-existing
Python interpreter, it still succeeds:

 $ PYTHON=wrongpython QTEST_QEMU_BINARY=./qemu-system-x86_64 tests/qtest/migration-test
 ...
 # Running /x86_64/migration/analyze-script
 # Using machine type: pc-q35-9.1
 # starting QEMU: exec ./qemu-system-x86_64 -qtest unix:/tmp/qtest-417639.sock -qtest-log /dev/null -chardev socket,path=/tmp/qtest-417639.qmp,id=char0 -mon chardev=char0,mode=control -display none -audio none -accel kvm -accel tcg -machine pc-q35-9.1, -name source,debug-threads=on -m 150M -serial file:/tmp/migration-test-XPLUN2/src_serial -drive if=none,id=d0,file=/tmp/migration-test-XPLUN2/bootsect,format=raw -device ide-hd,drive=d0,secs=1,cyls=1,heads=1   -uuid 11111111-1111-1111-1111-111111111111  -accel qtest
 # starting QEMU: exec ./qemu-system-x86_64 -qtest unix:/tmp/qtest-417639.sock -qtest-log /dev/null -chardev socket,path=/tmp/qtest-417639.qmp,id=char0 -mon chardev=char0,mode=control -display none -audio none -accel kvm -accel tcg -machine pc-q35-9.1, -name target,debug-threads=on -m 150M -serial file:/tmp/migration-test-XPLUN2/dest_serial -incoming tcp:127.0.0.1:0 -drive if=none,id=d0,file=/tmp/migration-test-XPLUN2/bootsect,format=raw -device ide-hd,drive=d0,secs=1,cyls=1,heads=1     -accel qtest
 **
 ERROR:../../devel/qemu/tests/qtest/migration-test.c:1603:test_analyze_script: code should not be reached
 migration-test: ../../devel/qemu/tests/qtest/libqtest.c:240: qtest_wait_qemu: Assertion `pid == s->qemu_pid' failed.
 migration-test: ../../devel/qemu/tests/qtest/libqtest.c:240: qtest_wait_qemu: Assertion `pid == s->qemu_pid' failed.
 ok 2 /x86_64/migration/analyze-script
 ...

Let's better fail the test in case the child did not exit properly, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-22 17:34:41 -03:00
Thomas Huth 648536550b tests/qtest/migration-test: Run some basic tests on s390x and ppc64 with TCG, too
On s390x, we recently had a regression that broke migration / savevm
(see commit bebe9603fc ("hw/intc/s390_flic: Fix crash that occurs when
saving the machine state"). The problem was merged without being noticed
since we currently do not run any migration / savevm related tests on
x86 hosts.
While we currently cannot run all migration tests for the s390x target
on x86 hosts yet (due to some unresolved issues with TCG), we can at
least run some of the non-live tests to avoid such problems in the future.
Thus enable the "analyze-script" and the "bad_dest" tests before checking
for KVM on s390x or ppc64 (this also fixes the problem that the
"analyze-script" test was not run on s390x at all anymore since it got
disabled again by accident in a previous refactoring of the code).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-22 17:34:41 -03:00
Fiona Ebner 9710401276 hw/core/machine: move compatibility flags for VirtIO-net USO to machine 8.1
Migration from an 8.2 or 9.0 binary to an 8.1 binary with machine
version 8.1 can fail with:

> kvm: Features 0x1c0010130afffa7 unsupported. Allowed features: 0x10179bfffe7
> kvm: Failed to load virtio-net:virtio
> kvm: error while loading state for instance 0x0 of device '0000:00:12.0/virtio-net'
> kvm: load of migration failed: Operation not permitted

The series

53da8b5a99 virtio-net: Add support for USO features
9da1684954 virtio-net: Add USO flags to vhost support.
f03e0cf63b tap: Add check for USO features
2ab0ec3121 tap: Add USO support to tap device.

only landed in QEMU 8.2, so the compatibility flags should be part of
machine version 8.1.

Moving the flags unfortunately breaks forward migration with machine
version 8.1 from a binary without this patch to a binary with this
patch.

Fixes: 53da8b5a99 ("virtio-net: Add support for USO features")
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-22 17:34:41 -03:00
Marc-André Lureau 40a23ef643 virtio-gpu: fix v2 migration
Commit dfcf74fa ("virtio-gpu: fix scanout migration post-load") broke
forward/backward version migration. Versioning of nested VMSD structures
is not straightforward, as the wire format doesn't have nested
structures versions. Introduce x-scanout-vmstate-version and a field
test to save/load appropriately according to the machine version.

Fixes: dfcf74fa ("virtio-gpu: fix scanout migration post-load")
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
[fixed long lines]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-22 17:34:41 -03:00
Marc-André Lureau f0937ec669 migration: fix a typo
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-22 17:34:40 -03:00
Marc-André Lureau 3f879f2f31 migration: add "exists" info to load-state-field trace
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-22 17:34:40 -03:00
Li Zhijian 3dc27fac25 migration/colo: Tidy up bql_unlock() around bdrv_activate_all()
Make the code more tight.

Suggested-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
[fixed mangled author email address]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-22 17:34:36 -03:00
Li Zhijian 787ea49e80 migration/colo: make colo_incoming_co() return void
Currently, it always returns 0, no need to check the return value at all.
In addition, enter colo coroutine only if migration_incoming_colo_enabled()
is true.
Once the destination side enters the COLO* state, the COLO process will
take over the remaining processes until COLO exits.

Cc: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
[fixed mangled author email address]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-22 17:34:31 -03:00
Li Zhijian 55a331655d migration/colo: Minor fix for colo error message
- Explicitly show the missing module name: replication
- Fix capability name to x-colo

Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Suggested-by: Michael Tokarev <mjt@tls.msk.ru>
[fixed mangled author email address]
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-22 17:34:10 -03:00
Richard Henderson 6af8037c42 vfio queue:
* Improvement of error reporting during migration
 * Removed Vendor Specific Capability check on newer machine
 * Addition of a VFIO migration QAPI event
 * Changed prototype of routines using an error parameter to return bool
 * Several cleanups regarding autofree variables
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Merge tag 'pull-vfio-20240522' of https://github.com/legoater/qemu into staging

vfio queue:

* Improvement of error reporting during migration
* Removed Vendor Specific Capability check on newer machine
* Addition of a VFIO migration QAPI event
* Changed prototype of routines using an error parameter to return bool
* Several cleanups regarding autofree variables

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# 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: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* tag 'pull-vfio-20240522' of https://github.com/legoater/qemu: (47 commits)
  vfio/igd: Use g_autofree in vfio_probe_igd_bar4_quirk()
  vfio: Use g_autofree in all call site of vfio_get_region_info()
  vfio/pci-quirks: Make vfio_add_*_cap() return bool
  vfio/pci-quirks: Make vfio_pci_igd_opregion_init() return bool
  vfio/pci: Use g_autofree for vfio_region_info pointer
  vfio/pci: Make capability related functions return bool
  vfio/pci: Make vfio_populate_vga() return bool
  vfio/pci: Make vfio_intx_enable() return bool
  vfio/pci: Make vfio_populate_device() return a bool
  vfio/pci: Make vfio_pci_relocate_msix() and vfio_msix_early_setup() return a bool
  vfio/pci: Make vfio_intx_enable_kvm() return a bool
  vfio/ccw: Make vfio_ccw_get_region() return a bool
  vfio/platform: Make vfio_populate_device() and vfio_base_device_init() return bool
  vfio/helpers: Make vfio_device_get_name() return bool
  vfio/helpers: Make vfio_set_irq_signaling() return bool
  vfio/helpers: Use g_autofree in vfio_set_irq_signaling()
  vfio/display: Make vfio_display_*() return bool
  vfio/display: Fix error path in call site of ramfb_setup()
  backends/iommufd: Make iommufd_backend_*() return bool
  vfio/cpr: Make vfio_cpr_register_container() return bool
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-22 06:02:06 -07:00
Zhenzhong Duan b4e1670c49 vfio/igd: Use g_autofree in vfio_probe_igd_bar4_quirk()
Pointer opregion, host and lpc are allocated and freed in
vfio_probe_igd_bar4_quirk(). Use g_autofree to automatically
free them.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:22 +02:00
Zhenzhong Duan 0d3e89bea8 vfio: Use g_autofree in all call site of vfio_get_region_info()
There are some exceptions when pointer to vfio_region_info is reused.
In that case, the pointed memory is freed manually.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:22 +02:00
Zhenzhong Duan 0a0bda0acd vfio/pci-quirks: Make vfio_add_*_cap() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Include below functions:
vfio_add_virt_caps()
vfio_add_nv_gpudirect_cap()
vfio_add_vmd_shadow_cap()

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:22 +02:00
Zhenzhong Duan d3c6a18bc7 vfio/pci-quirks: Make vfio_pci_igd_opregion_init() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan 514855e18f vfio/pci: Use g_autofree for vfio_region_info pointer
Pointer opregion is freed after vfio_pci_igd_opregion_init().
Use 'g_autofree' to avoid the g_free() calls.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan b771a40f9e vfio/pci: Make capability related functions return bool
The functions operating on capability don't have a consistent return style.

Below functions are in bool-valued functions style:
vfio_msi_setup()
vfio_msix_setup()
vfio_add_std_cap()
vfio_add_capabilities()

Below two are integer-valued functions:
vfio_add_vendor_specific_cap()
vfio_setup_pcie_cap()

But the returned integer is only used for check succeed/failure.
Change them all to return bool so now all capability related
functions follow the coding standand in qapi/error.h to return
bool.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan 64410a741d vfio/pci: Make vfio_populate_vga() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan c32bab074e vfio/pci: Make vfio_intx_enable() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan e942d8f08d vfio/pci: Make vfio_populate_device() return a bool
Since vfio_populate_device() takes an 'Error **' argument,
best practices suggest to return a bool. See the qapi/error.h
Rules section.

By this chance, pass errp directly to vfio_populate_device() to
avoid calling error_propagate().

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan 713b59a674 vfio/pci: Make vfio_pci_relocate_msix() and vfio_msix_early_setup() return a bool
Since vfio_pci_relocate_msix() and vfio_msix_early_setup() takes
an 'Error **' argument, best practices suggest to return a bool.
See the qapi/error.h Rules section.

By this chance, pass errp directly to vfio_msix_early_setup() to avoid
calling error_propagate().

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan 44cd660a99 vfio/pci: Make vfio_intx_enable_kvm() return a bool
Since vfio_intx_enable_kvm() takes an 'Error **' argument,
best practices suggest to return a bool. See the qapi/error.h
Rules section.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan 040f8d1050 vfio/ccw: Make vfio_ccw_get_region() return a bool
Since vfio_populate_device() takes an 'Error **' argument,
best practices suggest to return a bool. See the qapi/error.h
Rules section.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan 958609cfeb vfio/platform: Make vfio_populate_device() and vfio_base_device_init() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan c6c6cf91c0 vfio/helpers: Make vfio_device_get_name() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan 84e37d0296 vfio/helpers: Make vfio_set_irq_signaling() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan 50b632b64c vfio/helpers: Use g_autofree in vfio_set_irq_signaling()
Local pointer irq_set is freed before return from
vfio_set_irq_signaling().

Use 'g_autofree' to avoid the g_free() calls.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan 455c009dc4 vfio/display: Make vfio_display_*() return bool
This is to follow the coding standand in qapi/error.h to return bool
for bool-valued functions.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Zhenzhong Duan 9442d8af67 vfio/display: Fix error path in call site of ramfb_setup()
vfio_display_dmabuf_init() and vfio_display_region_init() calls
ramfb_setup() without checking its return value.

So we may run into a situation that vfio_display_probe() succeed
but errp is set. This is risky and may lead to assert failure in
error_setv().

Cc: Gerd Hoffmann <kraxel@redhat.com>
Fixes: b290659fc3 ("hw/vfio/display: add ramfb support")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-22 10:04:21 +02:00
Richard Henderson 01782d6b29 Misc HW patches queue
- Fix build when GBM buffer management library is detected (Cédric)
 - Fix PFlash block write (Gerd)
 - Allow 'parameter=1' for SMP topology on any machine (Daniel)
 - Allow guest-debug tests to run with recent GDB (Gustavo)
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Merge tag 'hw-misc-20240517' of https://github.com/philmd/qemu into staging

Misc HW patches queue

- Fix build when GBM buffer management library is detected (Cédric)
- Fix PFlash block write (Gerd)
- Allow 'parameter=1' for SMP topology on any machine (Daniel)
- Allow guest-debug tests to run with recent GDB (Gustavo)

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* tag 'hw-misc-20240517' of https://github.com/philmd/qemu:
  tests: Gently exit from GDB when tests complete
  tests: add testing of parameter=1 for SMP topology
  hw/core: allow parameter=1 for SMP topology on any machine
  hw/pflash: fix block write start
  ui/console: Only declare variable fence_fd when CONFIG_GBM is defined

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-18 11:49:01 +02:00
Richard Henderson 1f952d8cfd * Fix s390x crash when doing migration / savevm
* Decrease size of CI containers by removing unnecessary packages
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Merge tag 'pull-request-2024-05-17' of https://gitlab.com/thuth/qemu into staging

* Fix s390x crash when doing migration / savevm
* Decrease size of CI containers by removing unnecessary packages

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# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
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* tag 'pull-request-2024-05-17' of https://gitlab.com/thuth/qemu:
  hw/intc/s390_flic: Fix crash that occurs when saving the machine state
  tests/docker/dockerfiles: Update container files with "lcitool-refresh"
  tests/lcitool/projects/qemu.yml: Sort entries alphabetically again
  tests/lcitool: Remove g++ from the containers (except for the MinGW one)
  tests/lcitool: Remove 'xfsprogs' from QEMU
  tests/lcitool/refresh: Treat the output of lcitool as text, not as bytes

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-18 11:48:36 +02:00
Gustavo Romero 93a3048dcf tests: Gently exit from GDB when tests complete
GDB commit a207f6b3a38 ('Rewrite "python" command exception handling')
changed how exit() called from Python scripts loaded by GDB behave,
turning it into an exception instead of a generic error code that is
returned. This change caused several QEMU tests to crash with the
following exception:

Python Exception <class 'SystemExit'>: 0
Error occurred in Python: 0

This happens because in tests/guest-debug/test_gdbstub.py exit is
called after the tests have completed.

This commit fixes it by politely asking GDB to exit via gdb.execute,
passing the proper fail_count to be reported to 'make', instead of
abruptly calling exit() from the Python script.

Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240515173132.2462201-4-gustavo.romero@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-05-17 16:49:04 +02:00
Daniel P. Berrangé e68dcbb079 tests: add testing of parameter=1 for SMP topology
Validate that it is possible to pass 'parameter=1' for any SMP topology
parameter, since unsupported parameters are implicitly considered to
always have a value of 1.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Message-ID: <20240513123358.612355-3-berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-05-17 16:49:04 +02:00
Daniel P. Berrangé 9d7950edb0 hw/core: allow parameter=1 for SMP topology on any machine
This effectively reverts

  commit 54c4ea8f3a
  Author: Zhao Liu <zhao1.liu@intel.com>
  Date:   Sat Mar 9 00:01:37 2024 +0800

    hw/core/machine-smp: Deprecate unsupported "parameter=1" SMP configurations

but is not done as a 'git revert' since the part of the changes to the
file hw/core/machine-smp.c which add 'has_XXX' checks remain desirable.
Furthermore, we have to tweak the subsequently added unit test to
account for differing warning message.

The rationale for the original deprecation was:

  "Currently, it was allowed for users to specify the unsupported
   topology parameter as "1". For example, x86 PC machine doesn't
   support drawer/book/cluster topology levels, but user could specify
   "-smp drawers=1,books=1,clusters=1".

   This is meaningless and confusing, so that the support for this kind
   of configurations is marked deprecated since 9.0."

There are varying POVs on the topic of 'unsupported' topology levels.

It is common to say that on a system without hyperthreading, that there
is always 1 thread. Likewise when new CPUs introduced a concept of
multiple "dies', it was reasonable to say that all historical CPUs
before that implicitly had 1 'die'. Likewise for the more recently
introduced 'modules' and 'clusters' parameter'. From this POV, it is
valid to set 'parameter=1' on the -smp command line for any machine,
only a value > 1 is strictly an error condition.

It doesn't cause any functional difficulty for QEMU, because internally
the QEMU code is itself assuming that all "unsupported" parameters
implicitly have a value of '1'.

At the libvirt level, we've allowed applications to set 'parameter=1'
when configuring a guest, and pass that through to QEMU.

Deprecating this creates extra difficulty for because there's no info
exposed from QEMU about which machine types "support" which parameters.
Thus, libvirt can't know whether it is valid to pass 'parameter=1' for
a given machine type, or whether it will trigger deprecation messages.

Since there's no apparent functional benefit to deleting this deprecated
behaviour from QEMU, and it creates problems for consumers of QEMU,
remove this deprecation.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Message-ID: <20240513123358.612355-2-berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-05-17 16:49:04 +02:00
Gerd Hoffmann 2563be6317 hw/pflash: fix block write start
Move the pflash_blk_write_start() call.  We need the offset of the
first data write, not the offset for the setup (number-of-bytes)
write.  Without this fix u-boot can do block writes to the first
flash block only.

While being at it drop a leftover FIXME.

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2343
Fixes: 284a7ee2e2 ("hw/pflash: implement update buffer for block writes")
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240516121237.534875-1-kraxel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-05-17 16:49:04 +02:00
Cédric Le Goater 3dba3c0b25 ui/console: Only declare variable fence_fd when CONFIG_GBM is defined
This to avoid a build breakage :

../ui/gtk-egl.c: In function ‘gd_egl_draw’:
../ui/gtk-egl.c:73:9: error: unused variable ‘fence_fd’ [-Werror=unused-variable]
   73 |     int fence_fd;
      |         ^~~~~~~~

Fixes: fa6426805b ("ui/console: Use qemu_dmabuf_set_..() helpers instead")
Cc: Dongwon Kim <dongwon.kim@intel.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240515100520.574383-1-clg@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-05-17 16:49:04 +02:00
Thomas Huth bebe9603fc hw/intc/s390_flic: Fix crash that occurs when saving the machine state
adapter_info_so_needed() treats its "opaque" parameter as a S390FLICState,
but the function belongs to a VMStateDescription that is attached to a
TYPE_VIRTIO_CCW_BUS device. This is currently causing a crash when the
user tries to save or migrate the VM state. Fix it by using s390_get_flic()
to get the correct device here instead.

Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Fixes: 9d1b0f5bf5 ("s390_flic: add migration-enabled property")
Message-ID: <20240517061553.564529-1-thuth@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Tested-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-05-17 11:18:32 +02:00
Thomas Huth e4b6adae7a tests/docker/dockerfiles: Update container files with "lcitool-refresh"
Run "make lcitool-refresh" after the previous changes to the
lcitool files. This removes the g++ and xfslibs-dev packages
from the dockerfiles (except for the fedora-win64-cross dockerfile
where we keep the C++ compiler).

Message-ID: <20240516084059.511463-6-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-05-17 11:16:43 +02:00
Thomas Huth d2f213cc06 tests/lcitool/projects/qemu.yml: Sort entries alphabetically again
Let's try to keep the entries in alphabetical order here!

Message-ID: <20240516084059.511463-5-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-05-17 11:16:37 +02:00
Thomas Huth fd77b25bbd tests/lcitool: Remove g++ from the containers (except for the MinGW one)
We don't need C++ for the normal QEMU builds anymore, so installing
g++ in each and every container seems to be a waste of time and disk
space. The only container that still needs it is the Fedora MinGW
container that builds the only remaining C++ code in ./qga/vss-win32/
and we can install it there with an extra project yml file instead.

Message-ID: <20240516084059.511463-4-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-05-17 11:16:28 +02:00
Philippe Mathieu-Daudé 9ebe09e633 tests/lcitool: Remove 'xfsprogs' from QEMU
QEMU's commit a5730b8bd3 ("block/file-posix: Simplify the
XFS_IOC_DIOINFO handling") removed the need for the 'xfsprogs'
package.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[thuth: Adjusted the patch from the lcitools repo to QEMU's repo]
Message-ID: <20240516084059.511463-3-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-05-17 11:16:13 +02:00
Thomas Huth 4d8698e692 tests/lcitool/refresh: Treat the output of lcitool as text, not as bytes
In case lcitool fails (e.g. with a python backtrace), this makes
the output  of lcitool much more readable.

Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20240516084059.511463-2-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-05-17 11:15:58 +02:00
Zhenzhong Duan 9067d50dff backends/iommufd: Make iommufd_backend_*() return bool
This is to follow the coding standand to return bool if 'Error **'
is used to pass error.

The changed functions include:

iommufd_backend_connect
iommufd_backend_alloc_ioas

By this chance, simplify the functions a bit by avoiding duplicate
recordings, e.g., log through either error interface or trace, not
both.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-16 16:59:20 +02:00
Zhenzhong Duan f38f5dd1d4 vfio/cpr: Make vfio_cpr_register_container() return bool
This is to follow the coding standand to return bool if 'Error **'
is used to pass error.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-16 16:59:20 +02:00
Zhenzhong Duan 45d0d8c404 vfio/iommufd: Make iommufd_cdev_*() return bool
This is to follow the coding standand to return bool if 'Error **'
is used to pass error.

The changed functions include:

iommufd_cdev_kvm_device_add
iommufd_cdev_connect_and_bind
iommufd_cdev_attach_ioas_hwpt
iommufd_cdev_detach_ioas_hwpt
iommufd_cdev_attach_container
iommufd_cdev_get_info_iova_range

After the change, all functions in hw/vfio/iommufd.c follows the
standand.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-16 16:59:20 +02:00
Zhenzhong Duan be1ff306bb vfio/container: Make vfio_get_device() return bool
This is to follow the coding standand to return bool if 'Error **'
is used to pass error.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2024-05-16 16:59:20 +02:00