June 2026 - Devel - libvirt List Archives

[PATCH] ci: refresh with 'lcitool manifest'
by Michal Privoznik 12 Jun '26

12 Jun '26

From: Michal Privoznik <mprivozn(a)redhat.com> This switches Alpine from 3.23 to 3.24. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- Greenish pipeline: https://gitlab.com/MichalPrivoznik/libvirt/-/pipelines/2596746869 ci/buildenv/{alpine-323.sh => alpine-324.sh} | 0 .../{alpine-323.Dockerfile => alpine-324.Dockerfile} | 2 +- ci/gitlab/builds.yml | 8 ++++---- ci/gitlab/containers.yml | 4 ++-- ci/manifest.yml | 2 +- 5 files changed, 8 insertions(+), 8 deletions(-) rename ci/buildenv/{alpine-323.sh => alpine-324.sh} (100%) rename ci/containers/{alpine-323.Dockerfile => alpine-324.Dockerfile} (98%) diff --git a/ci/buildenv/alpine-323.sh b/ci/buildenv/alpine-324.sh similarity index 100% rename from ci/buildenv/alpine-323.sh rename to ci/buildenv/alpine-324.sh diff --git a/ci/containers/alpine-323.Dockerfile b/ci/containers/alpine-324.Dockerfile similarity index 98% rename from ci/containers/alpine-323.Dockerfile rename to ci/containers/alpine-324.Dockerfile index ee1f194808..e2022db8db 100644 --- a/ci/containers/alpine-323.Dockerfile +++ b/ci/containers/alpine-324.Dockerfile @@ -4,7 +4,7 @@ # # https://gitlab.com/libvirt/libvirt-ci -FROM docker.io/library/alpine:3.23 +FROM docker.io/library/alpine:3.24 RUN apk update && \ apk upgrade && \ diff --git a/ci/gitlab/builds.yml b/ci/gitlab/builds.yml index d947170ebe..c11c834f60 100644 --- a/ci/gitlab/builds.yml +++ b/ci/gitlab/builds.yml @@ -59,15 +59,15 @@ x86_64-almalinux-10-clang: TARGET_BASE_IMAGE: docker.io/library/almalinux:10 -x86_64-alpine-323: +x86_64-alpine-324: extends: .native_build_job needs: - - job: x86_64-alpine-323-container + - job: x86_64-alpine-324-container optional: true allow_failure: false variables: - NAME: alpine-323 - TARGET_BASE_IMAGE: docker.io/library/alpine:3.23 + NAME: alpine-324 + TARGET_BASE_IMAGE: docker.io/library/alpine:3.24 x86_64-alpine-edge: diff --git a/ci/gitlab/containers.yml b/ci/gitlab/containers.yml index c74443f565..a4b9a5f03b 100644 --- a/ci/gitlab/containers.yml +++ b/ci/gitlab/containers.yml @@ -21,11 +21,11 @@ x86_64-almalinux-10-container: NAME: almalinux-10 -x86_64-alpine-323-container: +x86_64-alpine-324-container: extends: .container_job allow_failure: false variables: - NAME: alpine-323 + NAME: alpine-324 x86_64-alpine-edge-container: diff --git a/ci/manifest.yml b/ci/manifest.yml index d36e3130d8..67a53bb3d2 100644 --- a/ci/manifest.yml +++ b/ci/manifest.yml @@ -32,7 +32,7 @@ targets: RPM: skip CC: clang - alpine-323: x86_64 + alpine-324: x86_64 alpine-edge: jobs: -- 2.53.0

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[PATCH 0/4] Remove deprecated Power8E and 8NVL CPUs
by Aditya Gupta 12 Jun '26

12 Jun '26

Overview ======== Power8E and Power8NVL were deprecated since QEMU 10.1, with commit 264a604e7163 ("target/ppc: Deprecate Power8E and Power8NVL") Hence, remove usage (chip and core types) of Power8E and 8NVL from PowerNV, PSeries as well as testcases. NOTE: PRE-REQUISITE: Requires following "Testcase improvements for PowerNV" to be merged first: https://lore.kernel.org/qemu-devel/20260610090235.3665904-1-adityag@linux.i… Aditya Gupta (4): ppc/pnv: Replace Power8E with Power11 for 'none' machine test ppc/pnv: Remove Power8E and Power8NVL pnv chips ppc/pnv: Remove Power8E and Power8NVL spapr cores ppc/pnv: Remove Power8E and Power8NVL CPUs docs/about/deprecated.rst | 9 ----- docs/system/ppc/powernv.rst | 2 +- docs/system/ppc/pseries.rst | 2 +- hw/ppc/pnv.c | 62 --------------------------------- hw/ppc/pnv_core.c | 2 -- hw/ppc/spapr_cpu_core.c | 2 -- include/hw/ppc/pnv.h | 8 ----- target/ppc/cpu-models.c | 6 ---- target/ppc/cpu-models.h | 4 --- target/ppc/cpu_init.c | 6 ---- target/ppc/kvm.c | 4 +-- tests/qtest/machine-none-test.c | 2 +- tests/qtest/pnv-xscom.h | 9 ----- 13 files changed, 4 insertions(+), 114 deletions(-) base-commit: de5d8bfd6105d3dd3ae668df9762df244a6d1506 -- 2.54.0

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[PATCH v2 0/2] lxc: Assign aliases to filesystem and network devices
by rsmigiel＠redhat.com 12 Jun '26

12 Jun '26

From: Radoslaw Smigielski <rsmigiel(a)redhat.com> This series adds device alias assignment for filesystem and network interface devices in LXC domains, make them working the same way like console devices. This is needed as a prerequisite for fixing bug #63 (loop device path length limitation), where device aliases will be used to compose synthetic lo_file_name references in the format "libvirt-$UUID-$DEVALIAS". It split this patch into two separate commits, filesystem and network related. -- 2.54.0

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[PATCH v2 00/35] monitor: turn QMP and HMP into QOM objects
by Daniel P. Berrangé 11 Jun '26

11 Jun '26

Conceptually -object and object_add/object_del should be sufficient for essentially all QEMU configuration....if only we ported all our internal custom backends/devices/etc to QOM. That is of course a big job which is why it hasn't happened. This series started with the premise that the monitor is one of the easier areas to convert since we have no more than three classes, a common base, and QMP and HMP subclasses[1]. So why not give it a go and thus unlock the ability to dynamically create/delete monitors in QMP/HMP. This series does the conversion in a great many small steps to better understand the implications at each stage. The high level outcome of this series is * HMP and QMP monitors are QOM objects, 'monitor-hmp' and 'monitor-qmp' respectively * Both can be cold plugged and hot plugged. QMP only, can also be hot unplugged. * '-mon' is obsolete, deprecated and replaced by '-object', but -monitor, -qmp and kept as high level syntax sugar * QMP gains a concept of "close-action" which makes it possible to mark a monitor for auto-delete. The monitor hot-unplug code and the qtest and functional testing code is heavily derived from a series sent by Christian Brauner which proposed new monitor_add/monitor_del commands: https://lists.nongnu.org/archive/html/qemu-devel/2026-04/msg01349.html I left Christian's authorship & SoB on the patches which were derived from his code, though the code has been refactored quite a bit in places, so bugs are quite possibly my own. Christian, if you prefer any changes in attribution here let me know. Note that Christian's series allowed the use of "monitor_del" commands against the current monitor session. ie a client could delete the very monitor it was using. This is an awkward concept as it needs special casing to delay the deletion to happen in the background, such that that the QMP response to 'monitor_del' could still be sent back. This also left the chardev was orphaned as there's no way to run 'chardev_dev' in that usage pattern. To provide an alternative mechanism to address the same use case, this series introduces the 'close-action' concept mentioned above, that allows hotplugging a monitor to service a specific task, with the monitor being purged when the script closes its connection. This avoids the special casing that an explicit "self deletion" paradigm required. While supporting hotplug of HMP was trivial, I didn't do any work to think about hotunplug of HMP, since IMHO it is of limited value given HMP's typical use cases. While -mon is deprecated in favour of -object, given '-mon' is such a significant CLI option, it is likely wise to not remove it as quickly as our deprecation policy would otherwise allow given the disruption that's liable to cause. It isn't a big burden to keep it around for a long time. [1] ~~~ we did all this not because it was easy, but because we thought it would be easy ~~~ Christian Brauner (6): monitor: convert from oneshot BH to persistent BH monitor: reject attempts to delete the current monitor monitor: protect qemu_chr_fe_accept_input with monitor lock monitor: implement support for deleting QMP objects tests/qtest: add tests for dynamic monitor add/remove tests/functional: add e2e test for dynamic QMP monitor hotplug Daniel P. Berrangé (29): qom: replace 'can_be_deleted' with 'prepare_delete' monitor: replace 'common' with 'parent_obj' in MonitorHMP monitor: replace 'common' with 'parent_obj' in MonitorQMP monitor: rename monitor_init* to monitor_new* monitor: minimal conversion of monitors to QOM monitor: add 'chardev' property to Monitor base class monitor: add 'readline' property to HMP Monitor class monitor: add 'pretty' property to QMP Monitor class monitor: remove 'skip_flush' field monitor: move monitor_data_(init|destroy) into QOM init/finalize monitor: use class methods for monitor_vprintf monitor: use class methods for monitor_qapi_event_emit monitor: use class methods for monitor_accept_input monitor: use class method for I/O thread request monitor: use dynamic cast in monitor_qmp_requests_pop_any_with_lock util: use dynamic cast in error vreport monitor: drop unused monitor_cur_is_qmp monitor: use dynamic cast in QMP commands monitor: use dynamic cast in monitor_is_hmp_non_interactive monitor: drop unused monitor_is_qmp method monitor: eliminate monitor_is_hmp_non_interactive method monitor: implement "user creatable" interface for adding monitors qemu-options: document new monitor-hmp and monitor-qmp objects tests/functional: add a stress test for monitor hot unplug qom: add method for getting the "id" of a QOM object qom: add trace events for user creatable create/delete APIs monitor: add support for auto-deleting monitors upon close tests: switch from -mon to -object monitor-qmp docs: mark '-mon' as deprecated in favour of -object MAINTAINERS | 1 + backends/cryptodev.c | 10 +- backends/hostmem.c | 5 +- backends/iommufd.c | 10 +- block/throttle-groups.c | 10 +- chardev/char.c | 3 +- docs/about/deprecated.rst | 10 + docs/devel/writing-monitor-commands.rst | 4 +- docs/system/arm/xenpvh.rst | 4 +- docs/system/i386/xen.rst | 3 +- docs/system/i386/xenpvh.rst | 4 +- event-loop-base.c | 8 +- gdbstub/system.c | 4 +- include/monitor/monitor.h | 23 +- include/qom/object.h | 10 + include/qom/object_interfaces.h | 26 +- include/system/event-loop-base.h | 2 +- migration/migration-hmp-cmds.c | 5 +- monitor/hmp-cmds.c | 7 +- monitor/hmp.c | 181 +++++++++-- monitor/monitor-internal.h | 74 +++-- monitor/monitor.c | 261 +++++++-------- monitor/qmp-cmds-control.c | 12 +- monitor/qmp-cmds.c | 14 +- monitor/qmp.c | 301 +++++++++++++++--- net/can/can_core.c | 5 +- python/qemu/machine/machine.py | 4 +- qapi/qom.json | 62 ++++ qemu-options.hx | 53 ++- qom/object.c | 17 + qom/object_interfaces.c | 20 +- qom/trace-events | 5 + storage-daemon/qemu-storage-daemon.c | 2 +- stubs/monitor-core.c | 5 - stubs/monitor-internal.c | 3 +- system/vl.c | 12 +- tests/functional/generic/meson.build | 1 + .../generic/test_monitor_hotplug.py | 275 ++++++++++++++++ tests/qemu-iotests/245 | 4 +- tests/qtest/libqtest.c | 2 +- tests/qtest/qmp-test.c | 174 ++++++++++ tests/unit/test-util-sockets.c | 1 - tools/qemu-vnc/stubs.c | 5 - ui/ui-hmp-cmds.c | 2 +- util/error-report.c | 13 +- util/main-loop.c | 5 +- 46 files changed, 1335 insertions(+), 327 deletions(-) create mode 100755 tests/functional/generic/test_monitor_hotplug.py -- 2.54.0

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[PATCH 00/20] qemu: Fix virtio video devcice frontend selection logic for migrations
by Peter Krempa 11 Jun '26

11 Jun '26

TL;DR: We've historically made selection of the specific virtio frontend device based on qemu capabilities but didn't record the choice. Migrations break if your qemu deployment differs. For more in-depth analysis see 16/20. This series conists of: -- refactor of removing detected qemu capabilities via config or the QMEU namespace -- fix to capability detection if host has no qemu -- addition of testing covering various possibilities for the virtio video devices which show specifics -- addition of XML infra for the new property holding the data -- refactors of the virtio selection code -- selecting the model in post parse callbacks -- fixing of validation code -- fixing of commandline generator Peter Krempa (20): qemu: capabilities: Apply 'capability_filters' configration option on all capabilities qemu: capabilities: Export 'virQEMUCapsNewCopy' outside of 'qemu_capspriv' qemu: Allow reuse of 'qemuProcessStartUpdateCustomCaps' qemu: validate: Validate VM config with qemuCaps influenced by <qemu:capabilities> qemu: postparse: Process VM config with qemuCaps influenced by <qemu:capabilities> virQEMUCapsCacheLookupDefault: Fix error message when no emulators are installed qemuxmlconfdata: un-symlink 'video-virtio-vga-gpu-gl' output qemuxmlconftest: Add 'video-virtio-vga' invocation with QEMU_CAPS_DEVICE_VIRTIO_VGA disabled qemuxmlconftest: Add test cases for configs asking for 'virtio-gpu-gl' or 'virtio-vga-gl' without the capability qemuxmlconftest: Add invocation of 'video-virtio-vga-gpu-gl' with missing caps and VIR_DOMAIN_DEF_PARSE_ABI_UPDATE qemustatusxml2xml: Add test case capturing virtio video device virDomainVideoDefFormat: Use 'virXMLFormatElement' instead of custom formatter conf: Add fields for recording actually-selected virtio video device qemuxmlconftest: Add test case for specifying 'virtio-gpu' where 'virtio-vga' would be picked qemuDeviceVideoGetModel: Directly return picked model qemu: postparse: Fill in selected virtio video frondend device in the XML qemuValidateDomainDeviceDefVideo: Fix checks of virtio video devices qemuDeviceVideoGetModel: Remove logic for selecting 'virtio' devices qemuDeviceVideoGetModel: Simplify by relying on checks from 'qemuValidateDomainDeviceDefVideo' qemu: Remove 'qemuDomainSupportsVideoVga' docs/formatdomain.rst | 8 + src/conf/domain_conf.c | 114 +++-- src/conf/domain_conf.h | 15 + src/conf/schemas/domaincommon.rng | 18 +- src/libvirt_private.syms | 1 + src/qemu/qemu_capabilities.c | 26 +- src/qemu/qemu_capabilities.h | 5 +- src/qemu/qemu_capspriv.h | 5 +- src/qemu/qemu_command.c | 163 +++--- src/qemu/qemu_domain.c | 96 +++- src/qemu/qemu_domain.h | 9 +- src/qemu/qemu_driver.c | 23 +- src/qemu/qemu_postparse.c | 108 +++- src/qemu/qemu_process.c | 55 +-- src/qemu/qemu_validate.c | 110 +++-- tests/qemucapsprobe.c | 3 +- .../virtio-vga-upgrade-in.xml | 466 ++++++++++++++++++ .../virtio-vga-upgrade-missing-in.xml | 464 +++++++++++++++++ .../virtio-vga-upgrade-missing-out.xml | 457 +++++++++++++++++ .../virtio-vga-upgrade-out.xml | 459 +++++++++++++++++ tests/qemuxmlactivetest.c | 6 + .../aarch64-video-default.aarch64-latest.xml | 2 +- ...64-video-virtio-gpu-pci.aarch64-latest.xml | 2 +- ...fault-models.aarch64-latest.abi-update.xml | 2 +- ...h64-virt-default-models.aarch64-latest.xml | 2 +- .../aarch64-virt-graphics.aarch64-latest.xml | 2 +- ...ault-video-type-aarch64.aarch64-latest.xml | 2 +- ...eo-type-loongarch64.loongarch64-latest.xml | 2 +- ...ault-video-type-riscv64.riscv64-latest.xml | 2 +- .../default-video-type-s390x.s390x-latest.xml | 2 +- ...t-models.loongarch64-latest.abi-update.xml | 2 +- ...virt-default-models.loongarch64-latest.xml | 2 +- ...rch64-virt-graphics.loongarch64-latest.xml | 2 +- .../q35-pcie-autoadd.x86_64-latest.xml | 2 +- .../q35-pcie.x86_64-latest.xml | 2 +- ...fault-models.riscv64-latest.abi-update.xml | 2 +- ...v64-virt-default-models.riscv64-latest.xml | 2 +- .../riscv64-virt-graphics.riscv64-latest.xml | 2 +- ...default-models.s390x-latest.abi-update.xml | 2 +- .../s390x-ccw-default-models.s390x-latest.xml | 2 +- .../s390x-ccw-graphics.s390x-latest.xml | 2 +- ...vhost-user-gpu-secondary.x86_64-latest.xml | 4 +- .../vhost-user-vga.x86_64-latest.xml | 2 +- .../video-virtio-blob-off.x86_64-latest.xml | 4 +- .../video-virtio-blob-on.x86_64-latest.xml | 4 +- .../video-virtio-edid-none.x86_64-latest.xml | 2 +- .../video-virtio-edid-off.x86_64-latest.xml | 2 +- .../video-virtio-edid-on.x86_64-latest.xml | 2 +- ...video-virtio-gpu-ccw-auto.s390x-latest.xml | 2 +- .../video-virtio-gpu-ccw.s390x-latest.xml | 4 +- .../video-virtio-gpu-device.x86_64-latest.xml | 2 +- .../video-virtio-gpu-sdl-gl.x86_64-latest.xml | 2 +- ...deo-virtio-gpu-secondary.x86_64-latest.xml | 4 +- ...ideo-virtio-gpu-spice-gl.x86_64-latest.xml | 2 +- .../video-virtio-gpu-virgl.x86_64-latest.xml | 2 +- ...io-vga-device-downgrade.x86_64-latest.args | 37 ++ ...tio-vga-device-downgrade.x86_64-latest.xml | 44 ++ .../video-virtio-vga-device-downgrade.xml | 33 ++ ..._VIRTIO_GPU_GL_PCI-disabled-ABI_UPDATE.err | 1 + ....QEMU_CAPS_VIRTIO_GPU_GL_PCI-disabled.args | 35 ++ ...t.QEMU_CAPS_VIRTIO_GPU_GL_PCI-disabled.xml | 46 ++ ...APS_VIRTIO_VGA_GL-disabled-ABI_UPDATE.args | 35 ++ ...CAPS_VIRTIO_VGA_GL-disabled-ABI_UPDATE.xml | 46 ++ ...test.QEMU_CAPS_VIRTIO_VGA_GL-disabled.args | 35 ++ ...atest.QEMU_CAPS_VIRTIO_VGA_GL-disabled.xml | 46 ++ .../video-virtio-vga-gpu-gl.x86_64-latest.xml | 47 +- ....QEMU_CAPS_DEVICE_VIRTIO_VGA-disabled.args | 37 ++ ...t.QEMU_CAPS_DEVICE_VIRTIO_VGA-disabled.xml | 44 ++ .../video-virtio-vga.x86_64-latest.xml | 2 +- ...virtio-options-video-ats.x86_64-latest.xml | 4 +- ...rtio-options-video-iommu.x86_64-latest.xml | 4 +- ...tio-options-video-packed.x86_64-latest.xml | 4 +- tests/qemuxmlconfdata/virtio-options.xml | 2 +- tests/qemuxmlconftest.c | 29 ++ tests/testutilsqemu.c | 3 +- 75 files changed, 2908 insertions(+), 315 deletions(-) create mode 100644 tests/qemustatusxml2xmldata/virtio-vga-upgrade-in.xml create mode 100644 tests/qemustatusxml2xmldata/virtio-vga-upgrade-missing-in.xml create mode 100644 tests/qemustatusxml2xmldata/virtio-vga-upgrade-missing-out.xml create mode 100644 tests/qemustatusxml2xmldata/virtio-vga-upgrade-out.xml create mode 100644 tests/qemuxmlconfdata/video-virtio-vga-device-downgrade.x86_64-latest.args create mode 100644 tests/qemuxmlconfdata/video-virtio-vga-device-downgrade.x86_64-latest.xml create mode 100644 tests/qemuxmlconfdata/video-virtio-vga-device-downgrade.xml create mode 100644 tests/qemuxmlconfdata/video-virtio-vga-gpu-gl.x86_64-latest.QEMU_CAPS_VIRTIO_GPU_GL_PCI-disabled-ABI_UPDATE.err create mode 100644 tests/qemuxmlconfdata/video-virtio-vga-gpu-gl.x86_64-latest.QEMU_CAPS_VIRTIO_GPU_GL_PCI-disabled.args create mode 100644 tests/qemuxmlconfdata/video-virtio-vga-gpu-gl.x86_64-latest.QEMU_CAPS_VIRTIO_GPU_GL_PCI-disabled.xml create mode 100644 tests/qemuxmlconfdata/video-virtio-vga-gpu-gl.x86_64-latest.QEMU_CAPS_VIRTIO_VGA_GL-disabled-ABI_UPDATE.args create mode 100644 tests/qemuxmlconfdata/video-virtio-vga-gpu-gl.x86_64-latest.QEMU_CAPS_VIRTIO_VGA_GL-disabled-ABI_UPDATE.xml create mode 100644 tests/qemuxmlconfdata/video-virtio-vga-gpu-gl.x86_64-latest.QEMU_CAPS_VIRTIO_VGA_GL-disabled.args create mode 100644 tests/qemuxmlconfdata/video-virtio-vga-gpu-gl.x86_64-latest.QEMU_CAPS_VIRTIO_VGA_GL-disabled.xml mode change 120000 => 100644 tests/qemuxmlconfdata/video-virtio-vga-gpu-gl.x86_64-latest.xml create mode 100644 tests/qemuxmlconfdata/video-virtio-vga.x86_64-latest.QEMU_CAPS_DEVICE_VIRTIO_VGA-disabled.args create mode 100644 tests/qemuxmlconfdata/video-virtio-vga.x86_64-latest.QEMU_CAPS_DEVICE_VIRTIO_VGA-disabled.xml -- 2.54.0

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[PATCH] lxc: Assign aliases to filesystem devices
by rsmigiel＠redhat.com 11 Jun '26

11 Jun '26

From: Radoslaw Smigielski <rsmigiel(a)redhat.com> From: Radoslaw Smigielski <rsmigiel(a)redhat.com> LXC domains did not assign device aliases to filesystem devices, unlike other device types (consoles, network interfaces, etc.). This change assigns aliases in the format 'fs0', 'fs1', etc. to all filesystem devices during domain startup, following the same pattern used for console devices. Related: https://gitlab.com/libvirt/libvirt/-/work_items/63 Signed-off-by: Radoslaw Smigielski <rsmigiel(a)redhat.com> --- src/lxc/lxc_process.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c index 2c0bcb9dd3aa..aae9fcc9dfd1 100644 --- a/src/lxc/lxc_process.c +++ b/src/lxc/lxc_process.c @@ -1350,6 +1350,12 @@ int virLXCProcessStart(virLXCDriver * driver, vm->def->consoles[i]->info.alias = g_strdup_printf("console%zu", i); } + VIR_DEBUG("Setting up filesystem aliases"); + for (i = 0; i < vm->def->nfss; i++) { + g_free(vm->def->fss[i]->info.alias); + vm->def->fss[i]->info.alias = g_strdup_printf("fs%zu", i); + } + VIR_DEBUG("Setting up Interfaces"); if (virLXCProcessSetupInterfaces(driver, vm->def, &veths) < 0) goto cleanup; -- 2.54.0

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[PATCH v2 0/5] qemu: add async vCPU unplug coverage
by Akash Kulhalli 10 Jun '26

10 Jun '26

This series adds qemuhotplugtest coverage for async vCPU unplug. Async vCPU unplug does not complete at the device_del reply. The guest CPU remains in a pending removal state until QEMU reports DEVICE_DELETED and the QEMU driver handles the resulting process event. The new harness support lets the tests observe that intermediate state and then complete the unplug through the same process-event path used by the driver. The setvcpu coverage exercises both a single-vCPU x86 hotplug entity and a grouped ppc64 hotplug entity. These cases check the pending live XML before completion and the final live/config XML after completion, while also validating the expected vcpu-removed domain events. The setvcpus coverage adds a separate count-based x86 downscale case. This keeps the independent count-to-entity selection path covered without duplicating the grouped-entity coverage from setvcpu. Changes from v1: - Fixed cumulative build issues with two patches - rebased on latest master, two patches have already been merged Akash Kulhalli (5): qemu: expose process event handler to tests tests: add helper for DEVICE_DELETED events qemuhotplugtest: support async vcpu unplug completion qemuhotplugtest: test setvcpu async unplug qemuhotplugtest: test setvcpus async downscale -- 2.47.3

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[PATCH 0/7] qemu: add async vCPU unplug coverage
by Akash Kulhalli 10 Jun '26

10 Jun '26

This series adds qemuhotplugtest coverage for async vCPU unplug. Async vCPU unplug does not complete at the device_del reply. The guest CPU remains in a pending removal state until QEMU reports DEVICE_DELETED and the QEMU driver handles the resulting process event. The new harness support lets the tests observe that intermediate state and then complete the unplug through the same process-event path used by the driver. The setvcpu coverage exercises both a single-vCPU x86 hotplug entity and a grouped ppc64 hotplug entity. These cases check the pending live XML before completion and the final live/config XML after completion, while also validating the expected vcpu-removed domain events. The setvcpus coverage adds a separate count-based x86 downscale case. This keeps the independent count-to-entity selection path covered without duplicating the grouped-entity coverage from setvcpu. The series also includes a small domain API cleanup to use the vCPU-specific flag aliases consistently in the vCPU entry points. This keeps the implementation and diagnostics aligned with the API being handled. This is a cosmetic change only, since the underlying values are all mapped to their equivalent enums. While adding this coverage, I realised that virsh was being too restrictive in its parameter combination validation; only QEMU does not support both `--async` and `--guest`. Other drivers may wish to support this behaviour. Accordingly, I've changed the behaviour so that virsh now lets the drivers reject the combination if they're unsupported. The decision now rests with the driver, which is more appropriate. Akash Kulhalli (7): qemu: expose process event handler to tests tests: add helper for DEVICE_DELETED events qemuhotplugtest: support async vcpu unplug completion qemuhotplugtest: test setvcpu async unplug qemuhotplugtest: test setvcpus async downscale domain: use vcpu-specific flag aliases consistently virsh: allow async vcpu options to reach drivers -- 2.49.0

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[PATCH 0/3] qemuxmlconftest: Error out if invalid FDs will be passed
by Peter Krempa 10 Jun '26

10 Jun '26

As promised in: [PATCH 00/30] qemuxmlconftest: Use real FDs in test cases these patches make qemuxmlconftest error out if fake FDs are passed to virCommandPassFD. Peter Krempa (3): testutils: Turn 'virTestDummyFDContext' into a proper type virTestDummyFDContext: Add fields to track errors and 'virTestDummyFDContextMarkError' qemuxmlconftest: Fail if test case tried to pass STDIO or invalid fds to 'virCommandPassFD' tests/qemuxml2argvmock.c | 3 +++ tests/qemuxmlconftest.c | 12 +++++++++- tests/testutils.c | 47 ++++++++++++++++++++++++++++++++++------ tests/testutils.h | 8 ++++++- tests/testutilsqemu.h | 4 +++- 5 files changed, 64 insertions(+), 10 deletions(-) -- 2.54.0

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[PATCH] qemu: validate: treat only real backing chains as NVRAM backingStore
by Efim Shevrin 10 Jun '26

10 Jun '26

qemuDomainInitializePflashStorageSource() always attaches a non-NULL src->backingStore used as an empty virStorageSource chain terminator (type VIR_STORAGE_TYPE_NONE). qemuValidateDomainDefNvram() incorrectly interpreted every non-NULL backingStore as a genuine backing overlay and reported VIR_ERR_CONFIG_UNSUPPORTED, so legitimate UEFI/NVRAM setups were rejected. Check virStorageSourceIsBacking(src->backingStore) instead of a plain pointer test so only a real backing node is rejected. Regression introduced in commit bca731d0f562f0842f56ec2206fdbd721a468f5b. Signed-off-by: Fima Shevrin <efim.shevrin(a)virtuozzo.com> --- src/qemu/qemu_validate.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c index 642244b62e..d8347d1964 100644 --- a/src/qemu/qemu_validate.c +++ b/src/qemu/qemu_validate.c @@ -740,7 +740,14 @@ qemuValidateDomainDefNvram(const virDomainDef *def, return -1; } - if (src->backingStore) { + /* qemuDomainInitializePflashStorageSource() always sets + * src->backingStore to a fresh empty virStorageSource as a + * chain terminator, so a plain `if (src->backingStore)` check + * is always true and rejects every UEFI/NVRAM domain after + * upstream commit that introduced the terminator. Use + * virStorageSourceIsBacking() (type != VIR_STORAGE_TYPE_NONE) + * so we only reject genuine backing chains. */ + if (virStorageSourceIsBacking(src->backingStore)) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("backingStore is not supported with NVRAM")); return -1; -- 2.47.1

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