September 2026 - Devel - libvirt List Archives

[PATCH v3 00/10] conf, qemu: Add scalable_mode, fsts, pasid_bits, and svm support for intel-iommu
by Zhenzhong Duan 08 Oct '26

08 Oct '26

Hi, This series adds support for configuring Intel vIOMMU (VT-d) in domain XML and formatting them onto the QEMU command line: * scalable_mode: Configures scalable mode support ('on'/'off'). * fsts: Enables First-Stage Translation support ('on'/'off'). * pasid_bits: Sets the number of supported PASID bits. * svm: Enables Shared Virtual Memory (SVM) / PRQ support ('on'/'off'). With these attributes, users can configure advanced vIOMMU features for both emulated devices and assigned host devices (e.g., vSVA / nested translation via iommufd and first-stage translation). Example domain XML configuration: <iommu model='intel'> <driver caching_mode='on' iotlb='on' scalable_mode='on' fsts='on' pasid_bits='6' svm='on'/> </iommu> Which formats the following QEMU command line options: -device {"driver":"intel-iommu","id":"iommu0","caching-mode":true,"device-iotlb":true,"scalable-mode":true,"fsts":true,"pasid-bits":6,"svm":true} Testing: - Validated with libvirt test suite (ninja test). - Tested DSA card passthrough and SVM/vSVA with iommufd backend. Changelog: v3: - merge qemu patch into conf patch (Peter Krempa) - fix pasid_bits type definition (Peter Krempa) - fix doc to use 'pasid_bits' rather than 'pasid-bits' (Peter Krempa) - add patch10 to print attribute name in error message (Peter Krempa) - add patch5 for missing validations v2: - Added support for 'pasid_bits' and 'svm' attributes. - rebased to master branch newest Thanks, Zhenzhong Zhenzhong Duan (10): qemu_capabilities: Introduce QEMU_CAPS_INTEL_IOMMU_SCALABLE_MODE qemu: Add scalable_mode attribute to iommu qemu_capabilities: Introduce QEMU_CAPS_INTEL_IOMMU_FSTS qemu: Add fsts attribute to iommu qemu: Validate PCI hostdev assignment against intel-iommu 'fsts' qemu_capabilities: Introduce QEMU_CAPS_INTEL_IOMMU_PASID_BITS qemu: add pasid_bits attribute to iommu qemu_capabilities: Introduce QEMU_CAPS_INTEL_IOMMU_SVM qemu: add svm attribute to iommu conf: qemu: Standardize IOMMU error messages to use XML attribute names docs/formatdomain.rst | 19 +++ src/conf/domain_conf.c | 120 +++++++++++++++--- src/conf/domain_conf.h | 7 + src/conf/domain_validate.c | 55 +++++++- src/conf/schemas/domaincommon.rng | 20 +++ src/libvirt_private.syms | 1 + src/qemu/qemu_capabilities.c | 10 ++ src/qemu/qemu_capabilities.h | 6 + src/qemu/qemu_command.c | 4 + src/qemu/qemu_validate.c | 59 +++++++-- .../caps_11.0.0_x86_64+sgx.xml | 1 + .../caps_11.0.0_x86_64.xml | 1 + .../caps_11.1.0_x86_64.xml | 4 + .../intel-iommu-fsts.x86_64-latest.args | 34 +++++ .../intel-iommu-fsts.x86_64-latest.xml | 37 ++++++ tests/qemuxmlconfdata/intel-iommu-fsts.xml | 37 ++++++ .../intel-iommu-pasid-bits.x86_64-latest.args | 34 +++++ .../intel-iommu-pasid-bits.x86_64-latest.xml | 37 ++++++ .../intel-iommu-pasid-bits.xml | 37 ++++++ ...tel-iommu-scalable-mode.x86_64-latest.args | 34 +++++ ...ntel-iommu-scalable-mode.x86_64-latest.xml | 37 ++++++ .../intel-iommu-scalable-mode.xml | 37 ++++++ .../intel-iommu-svm.x86_64-latest.args | 34 +++++ .../intel-iommu-svm.x86_64-latest.xml | 37 ++++++ tests/qemuxmlconfdata/intel-iommu-svm.xml | 37 ++++++ tests/qemuxmlconftest.c | 4 + 26 files changed, 712 insertions(+), 31 deletions(-) create mode 100644 tests/qemuxmlconfdata/intel-iommu-fsts.x86_64-latest.args create mode 100644 tests/qemuxmlconfdata/intel-iommu-fsts.x86_64-latest.xml create mode 100644 tests/qemuxmlconfdata/intel-iommu-fsts.xml create mode 100644 tests/qemuxmlconfdata/intel-iommu-pasid-bits.x86_64-latest.args create mode 100644 tests/qemuxmlconfdata/intel-iommu-pasid-bits.x86_64-latest.xml create mode 100644 tests/qemuxmlconfdata/intel-iommu-pasid-bits.xml create mode 100644 tests/qemuxmlconfdata/intel-iommu-scalable-mode.x86_64-latest.args create mode 100644 tests/qemuxmlconfdata/intel-iommu-scalable-mode.x86_64-latest.xml create mode 100644 tests/qemuxmlconfdata/intel-iommu-scalable-mode.xml create mode 100644 tests/qemuxmlconfdata/intel-iommu-svm.x86_64-latest.args create mode 100644 tests/qemuxmlconfdata/intel-iommu-svm.x86_64-latest.xml create mode 100644 tests/qemuxmlconfdata/intel-iommu-svm.xml -- 2.52.0

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[PATCH] qemuDomainRestoreInternal: Preserve error on cleanup path
by Peter Krempa 07 Oct '26

07 Oct '26

From: Peter Krempa <pkrempa(a)redhat.com> Preserve the error on cleanup path as cleanup of the 'libivrt_iohelper' process may overwrite it with an unactionable error, such as when attempting to restore a save image while the VM is already running: $ virsh list Id Name State -------------------------- 9 cd running $ virsh restore /tmp/cd.save error: Failed to restore domain from /tmp/cd.save error: internal error: Child process (LIBVIRT_LOG_OUTPUTS=1:stderr /home/pipo/build/libvirt/gcc/src/libvirt_iohelper /tmp/cd.save 0) unexpected fatal signal 13 After this patch the original error is reported: $ virsh restore /tmp/cd.save error: Failed to restore domain from /tmp/cd.save error: Requested operation is not valid: domain 'cd' is already active Signed-off-by: Peter Krempa <pkrempa(a)redhat.com> --- src/qemu/qemu_driver.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 61d95bfbbf..25ba6695bb 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -5985,6 +5985,7 @@ qemuDomainRestoreInternal(virQEMUDriver *driver, bool sparse = false; bool bypass_cache = (flags & VIR_DOMAIN_SAVE_BYPASS_CACHE) != 0; g_autoptr(qemuMigrationParams) restoreParams = NULL; + virErrorPtr save_err = NULL; virCheckFlags(QEMU_DOMAIN_RESTORE_FLAGS, -1); @@ -6109,6 +6110,7 @@ qemuDomainRestoreInternal(virQEMUDriver *driver, qemuProcessEndJob(vmNew); cleanup: + virErrorPreserveLast(&save_err); VIR_FORCE_CLOSE(fd); if (virFileWrapperFdClose(wrapperFd) < 0) ret = -1; @@ -6117,6 +6119,7 @@ qemuDomainRestoreInternal(virQEMUDriver *driver, if (vmNew && ret < 0) qemuDomainRemoveInactive(vmNew, 0, false); virDomainObjEndAPI(&vmNew); + virErrorRestore(&save_err); return ret; } -- 2.55.0

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[PATCH] Remove rbd's auth_supported option
by Yusuke Fujimaki 04 Oct '26

04 Oct '26

Ceph removed auth_supported option in commit 350cc71d, https://github.com/ceph/ceph/commit/350cc71d7d9e9cd6239d24080082de7ac9bf8b70 auth_supported has long been an optional parameter, and has been replaced by auth_*_required. The error occurs because libvirt always uses the auth_supported option when authenticating to rbd storage.Therefore, remove the code that uses this option. Resolves: https://gitlab.com/libvirt/libvirt/-/work_items/918 Signed-off-by: Yusuke Fujimaki <usk.fujimaki(a)gmail.com> --- src/libxl/libxl_conf.c | 6 +----- src/libxl/xen_xl.c | 2 -- src/storage/storage_backend_rbd.c | 7 ------- tests/xlconfigdata/test-rbd-multihost-noauth.cfg | 2 +- 4 files changed, 2 insertions(+), 15 deletions(-) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index 3bb5c1e591..184a143712 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -1087,11 +1087,7 @@ libxlMakeNetworkDiskSrcStr(virStorageSource *src, if (username) { virBufferEscape(&buf, '\\', ":", ":id=%s", username); - virBufferEscape(&buf, '\\', ":", - ":key=%s:auth_supported=cephx\\;none", - secret); - } else { - virBufferAddLit(&buf, ":auth_supported=none"); + virBufferEscape(&buf, '\\', ":", ":key=%s", secret); } if (src->nhosts > 0) { diff --git a/src/libxl/xen_xl.c b/src/libxl/xen_xl.c index d05972af5b..952dd73c1a 100644 --- a/src/libxl/xen_xl.c +++ b/src/libxl/xen_xl.c @@ -1478,8 +1478,6 @@ xenFormatXLDiskSrcNet(virStorageSource *src) virBufferStrcat(&buf, "rbd:", src->path, NULL); - virBufferAddLit(&buf, ":auth_supported=none"); - if (src->nhosts > 0) { virBufferAddLit(&buf, ":mon_host="); for (i = 0; i < src->nhosts; i++) { diff --git a/src/storage/storage_backend_rbd.c b/src/storage/storage_backend_rbd.c index 25cad4a28d..3981f81a79 100644 --- a/src/storage/storage_backend_rbd.c +++ b/src/storage/storage_backend_rbd.c @@ -239,10 +239,6 @@ virStorageBackendRBDOpenRADOSConn(virStorageBackendRBDState *ptr, if (rc < 0) goto cleanup; - - if (virStorageBackendRBDRADOSConfSet(ptr->cluster, - "auth_supported", "cephx") < 0) - goto cleanup; } else { VIR_DEBUG("Not using cephx authorization"); if (rados_create(&ptr->cluster, NULL) < 0) { @@ -250,9 +246,6 @@ virStorageBackendRBDOpenRADOSConn(virStorageBackendRBDState *ptr, _("failed to create the RADOS cluster")); goto cleanup; } - if (virStorageBackendRBDRADOSConfSet(ptr->cluster, - "auth_supported", "none") < 0) - goto cleanup; } VIR_DEBUG("Found %zu RADOS cluster monitors in the pool configuration", diff --git a/tests/xlconfigdata/test-rbd-multihost-noauth.cfg b/tests/xlconfigdata/test-rbd-multihost-noauth.cfg index 5906865047..933e5af75a 100644 --- a/tests/xlconfigdata/test-rbd-multihost-noauth.cfg +++ b/tests/xlconfigdata/test-rbd-multihost-noauth.cfg @@ -22,4 +22,4 @@ parallel = "none" serial = "none" builder = "hvm" boot = "d" -disk = [ "format=raw,vdev=hda,access=rw,backendtype=phy,target=/dev/HostVG/XenGuest2", "format=raw,vdev=hdb,access=rw,backendtype=qdisk,target=rbd:pool/image:auth_supported=none:mon_host=mon1.example.org\\:6321\\;mon2.example.org\\:6322\\;mon3.example.org\\:6322" ] +disk = [ "format=raw,vdev=hda,access=rw,backendtype=phy,target=/dev/HostVG/XenGuest2", "format=raw,vdev=hdb,access=rw,backendtype=qdisk,target=rbd:pool/image:mon_host=mon1.example.org\\:6321\\;mon2.example.org\\:6322\\;mon3.example.org\\:6322" ] -- 2.47.3

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[PATCH v2] bhyve: do not override domain startup errors
by Roman Bogorodskiy 30 Sep '26

30 Sep '26

Make virBhyveProcessStopImpl() not override an error. It is called from various cleanup routines and should preserve the original error. Update virBhyveProcessStart() to preserve the original error around the STOPPED and RELEASE hooks. Additionally, relax error handling for devicemap removal in virBhyveProcessStartImpl(), since it is not critical enough to raise an error. Signed-off-by: Roman Bogorodskiy <bogorodskiy(a)gmail.com> Reviewed-by: Michal Privoznik <mprivozn(a)redhat.com> --- Changes since v1: - Instead of trying to preserve errors in virBhyveProcessStartImpl(), update virBhyveProcessStopImpl() not to override errors. src/bhyve/bhyve_process.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/src/bhyve/bhyve_process.c b/src/bhyve/bhyve_process.c index 65cf61c578..a255b799b2 100644 --- a/src/bhyve/bhyve_process.c +++ b/src/bhyve/bhyve_process.c @@ -433,8 +433,8 @@ virBhyveProcessStartImpl(struct _bhyveConn *driver, if (devicemap != NULL) { rc = unlink(devmap_file); if (rc < 0 && errno != ENOENT) - virReportSystemError(errno, _("cannot unlink file '%1$s'"), - devmap_file); + VIR_WARN("cannot unlink file '%s': %s", + devmap_file, g_strerror(errno)); } if (ret < 0) @@ -593,6 +593,8 @@ virBhyveProcessStart(bhyveConn *driver, virDomainRunningReason reason, unsigned int flags) { + virErrorPtr save_err = NULL; + if (virDomainObjSetDefTransient(driver->xmlopt, vm, NULL) < 0) return -1; @@ -612,9 +614,11 @@ virBhyveProcessStart(bhyveConn *driver, return virBhyveProcessStartImpl(driver, vm, reason); cleanup: + virErrorPreserveLast(&save_err); bhyveProcessStopHook(driver, vm, VIR_HOOK_BHYVE_OP_STOPPED); bhyveProcessStopHook(driver, vm, VIR_HOOK_BHYVE_OP_RELEASE); virDomainObjRemoveTransientDef(vm); + virErrorRestore(&save_err); return -1; } @@ -660,6 +664,9 @@ virBhyveProcessStopImpl(struct _bhyveConn *driver, g_autoptr(virCommand) cmd = NULL; bhyveDomainObjPrivate *priv = vm->privateData; bool vm_started = false; + virErrorPtr save_err = NULL; + + virErrorPreserveLast(&save_err); if (vm->pid != 0) vm_started = true; @@ -667,14 +674,15 @@ virBhyveProcessStopImpl(struct _bhyveConn *driver, if (!forceCleanup) { if (!virDomainObjIsActive(vm)) { VIR_DEBUG("VM '%s' not active", vm->def->name); - return 0; + goto cleanup; } if (!vm_started) { virReportError(VIR_ERR_INTERNAL_ERROR, _("Invalid PID %1$d for VM"), (int)vm->pid); - return -1; + ret = -1; + goto cleanup; } } @@ -735,6 +743,8 @@ virBhyveProcessStopImpl(struct _bhyveConn *driver, if (restoreDef) virDomainObjRemoveTransientDef(vm); + cleanup: + virErrorRestore(&save_err); return ret; } -- 2.55.0

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Entering freeze for libvirt-12.8.0
by Jiri Denemark 29 Sep '26

29 Sep '26

I have just tagged v12.8.0-rc1 in the repository and pushed signed tarballs to https://download.libvirt.org/ Please give the release candidate some testing and in case you find a serious issue which should have a fix in the upcoming release, feel free to reply to this thread to make sure the issue is more visible. If you have not done so yet, please update NEWS.rst to document any significant change you made since the last release. Jirka

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[PATCH] apparmor: Allow reading device uevent files for USB hostdev
by Hector Cao 29 Sep '26

29 Sep '26

From: Hector Cao <hector.cao(a)canonical.com> Attaching a USB device as a <hostdev> fails under the libvirt-qemu AppArmor profile because QEMU (via libusb) walks up the sysfs topology of the passed-through device and reads the uevent file of the parent USB host controller, which is a PCI (or platform) device that lives one level above the usb[0-9]* directory: /sys/devices/pci0000:00/0000:00:01.2/uevent The existing rule only grants read access to everything *under* a usb[0-9]* directory: /sys/devices/**/usb[0-9]*/** r, so the controller's uevent, which sits above usb[0-9]*, is not covered and the access is denied: apparmor="DENIED" operation="open" class="file" profile="libvirt-<uuid>" name="/sys/devices/pci0000:00/0000:00:01.2/uevent" comm="qemu-system-x86" requested_mask="r" denied_mask="r" uevent files only expose non-sensitive device metadata (driver name, modalias, PCI IDs, DEVTYPE, etc.), so grant read access to uevent files across the device tree might be acceptable. This is enough to let USB hostdev attach and hotplug succeed without broadening access to any other sysfs attribute. Signed-off-by: Hector Cao <hector.cao(a)canonical.com> --- src/security/apparmor/libvirt-qemu | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/security/apparmor/libvirt-qemu b/src/security/apparmor/libvirt-qemu index 428f9a9731..9bf572692b 100644 --- a/src/security/apparmor/libvirt-qemu +++ b/src/security/apparmor/libvirt-qemu @@ -45,6 +45,12 @@ /sys/bus/usb/devices/ r, /sys/bus/usb/devices/* r, /sys/devices/**/usb[0-9]*/** r, + # For USB hostdev access, QEMU (via libusb) walks up the sysfs topology + # of the passed-through device and reads the uevent of the parent USB + # host controller, which sits one level above the usb[0-9]* directory + # (e.g. /sys/devices/pci0000:00/0000:00:01.2/uevent). uevent files only + # expose non-sensitive device metadata. + /sys/devices/**/uevent r, # libusb needs udev data about usb devices (~equal to content of lsusb -v) /run/udev/data/+usb* r, /run/udev/data/c16[6,7]* r, -- 2.43.0

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[PATCH] bhyve: do not override domain startup errors
by Roman Bogorodskiy 29 Sep '26

29 Sep '26

In virBhyveProcessStartImpl() we call virBhyveProcessStop(), and even though we use ignore_value() it overrides the original error. So preserve last error in the cleanup routine and restore it before returning. While here, relax error handling for devicemap removal, it is not critical enough to raise an error. Additionally, apply a similar pattern to virBhyveProcessStart() so errors running hooks do not override domain startup errors. Signed-off-by: Roman Bogorodskiy <bogorodskiy(a)gmail.com> --- src/bhyve/bhyve_process.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/src/bhyve/bhyve_process.c b/src/bhyve/bhyve_process.c index 65cf61c578..155037e99a 100644 --- a/src/bhyve/bhyve_process.c +++ b/src/bhyve/bhyve_process.c @@ -302,6 +302,7 @@ virBhyveProcessStartImpl(struct _bhyveConn *driver, VIR_AUTOCLOSE logfd = -1; g_autoptr(virCommand) cmd = NULL; g_autoptr(virCommand) load_cmd = NULL; + virErrorPtr save_err = NULL; bhyveDomainObjPrivate *priv = vm->privateData; g_autofree char *domain_vmm_path = NULL; virTimeBackOffVar timebackoff; @@ -430,16 +431,21 @@ virBhyveProcessStartImpl(struct _bhyveConn *driver, ret = 0; cleanup: + if (ret < 0) + virErrorPreserveLast(&save_err); + if (devicemap != NULL) { rc = unlink(devmap_file); if (rc < 0 && errno != ENOENT) - virReportSystemError(errno, _("cannot unlink file '%1$s'"), - devmap_file); + VIR_WARN("cannot unlink file '%s': %s", + devmap_file, g_strerror(errno)); } - if (ret < 0) + if (ret < 0) { ignore_value(virBhyveProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_FAILED, true)); + virErrorRestore(&save_err); + } return ret; } @@ -593,6 +599,8 @@ virBhyveProcessStart(bhyveConn *driver, virDomainRunningReason reason, unsigned int flags) { + virErrorPtr save_err = NULL; + if (virDomainObjSetDefTransient(driver->xmlopt, vm, NULL) < 0) return -1; @@ -612,9 +620,11 @@ virBhyveProcessStart(bhyveConn *driver, return virBhyveProcessStartImpl(driver, vm, reason); cleanup: + virErrorPreserveLast(&save_err); bhyveProcessStopHook(driver, vm, VIR_HOOK_BHYVE_OP_STOPPED); bhyveProcessStopHook(driver, vm, VIR_HOOK_BHYVE_OP_RELEASE); virDomainObjRemoveTransientDef(vm); + virErrorRestore(&save_err); return -1; } -- 2.55.0

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[PATCH] NEWS: document bhyve changes for 12.8.0
by Roman Bogorodskiy 29 Sep '26

29 Sep '26

Signed-off-by: Roman Bogorodskiy <bogorodskiy(a)gmail.com> --- NEWS.rst | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index c333d6287b..bb8fc38d67 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -24,6 +24,23 @@ v12.8.0 (unreleased) those dumps may occupy, pruning the oldest after each new one. It takes a byte count or a size such as ``"10GiB"``; 0, the default, keeps them all. + * FreeBSD: support VLAN configuration on bridges + + libvirt on FreeBSD now supports VLAN configurations such as:: + + <vlan trunk='yes'> + <tag id='42' nativeMode='untagged'/> + <tag id='43'/> + </vlan> + + It also supports ``macTableManager='libvirt'`` bridge configuration + for networks (requires FreeBSD 15.0 or newer). + + * bhyve: implement ``virDomainSetLifecycleAction()`` API + + The bhyve driver now implements the ``virDomainSetLifecycleAction()`` API + (accessible via ``virsh set-lifecycle-action``). + * **Improvements** * qemu: Select the win-dmp format for Windows guest crash dumps @@ -40,6 +57,11 @@ v12.8.0 (unreleased) * **Bug fixes** + * bhyve: fixes for transient/persistent domain handling and leftover TAP devices + + A few issues related to transient and persistent domain handling were fixed. + Additionally, error handling bugs in the network interfaces management code + were fixed so it does not leave dangling TAP interfaces on errors. v12.7.0 (2026-09-01) ==================== -- 2.55.0

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[PATCH] tests: add sample xml for <on_lockfailure>
by Daniel P. Berrangé 29 Sep '26

29 Sep '26

From: Daniel P. Berrangé <berrange(a)redhat.com> This part of the schema had zero coverage in test files. Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com> --- tests/genericxml2xmlindata/locking.xml | 18 ++++++++++++++++++ tests/genericxml2xmloutdata/locking.xml | 18 ++++++++++++++++++ tests/genericxml2xmltest.c | 1 + 3 files changed, 37 insertions(+) create mode 100644 tests/genericxml2xmlindata/locking.xml create mode 100644 tests/genericxml2xmloutdata/locking.xml diff --git a/tests/genericxml2xmlindata/locking.xml b/tests/genericxml2xmlindata/locking.xml new file mode 100644 index 0000000000..d0276ead2a --- /dev/null +++ b/tests/genericxml2xmlindata/locking.xml @@ -0,0 +1,18 @@ +<domain type='qemu'> + <name>bar</name> + <uuid>00010203-0405-4607-8809-0a0b0c0d0e0f</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <on_lockfailure>pause</on_lockfailure> + <devices> + </devices> +</domain> diff --git a/tests/genericxml2xmloutdata/locking.xml b/tests/genericxml2xmloutdata/locking.xml new file mode 100644 index 0000000000..d0276ead2a --- /dev/null +++ b/tests/genericxml2xmloutdata/locking.xml @@ -0,0 +1,18 @@ +<domain type='qemu'> + <name>bar</name> + <uuid>00010203-0405-4607-8809-0a0b0c0d0e0f</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <on_lockfailure>pause</on_lockfailure> + <devices> + </devices> +</domain> diff --git a/tests/genericxml2xmltest.c b/tests/genericxml2xmltest.c index 169c71efa3..3a2764a378 100644 --- a/tests/genericxml2xmltest.c +++ b/tests/genericxml2xmltest.c @@ -265,6 +265,7 @@ mymain(void) DO_TEST("iothreadids"); DO_TEST("iommufd"); + DO_TEST("locking"); virObjectUnref(caps); virObjectUnref(xmlopt); -- 2.55.0

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[PATCH] NEWS: Document whole-process resctrl support
by Jedrzej Wasiukiewicz 29 Sep '26

29 Sep '26

Signed-off-by: Jedrzej Wasiukiewicz <jedrzej.wasiukiewicz(a)intel.com> --- NEWS.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index c333d6287b..83e1d45ec0 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -17,6 +17,12 @@ v12.8.0 (unreleased) * **New features** + * resctrl: Support whole-process allocations and monitoring + + ``cachetune``, ``memorytune`` and ``energytune`` can now apply to the + entire QEMU process. Monitors without a ``vcpus`` attribute inherit the + enclosing scope. This enables whole-VM resctrl allocations and monitoring. + * qemu: Add ``auto_dump_max_size`` to cap the size of auto-triggered dumps A guest that keeps crashing fills ``auto_dump_path`` one dump at a time. @@ -40,6 +46,11 @@ v12.8.0 (unreleased) * **Bug fixes** + * qemu: Fix resctrl monitor statistics reporting + + Statistics now use the correct monitor group names and omit nonexistent + cache monitor data. + v12.7.0 (2026-09-01) ==================== -- 2.43.0 --------------------------------------------------------------------- Intel Technology Poland sp. z o.o. ul. Slowackiego 173 | 80-298 Gdansk | Sad Rejonowy Gdansk Polnoc | VII Wydzial Gospodarczy Krajowego Rejestru Sadowego - KRS 101882 | NIP 957-07-52-316 | Kapital zakladowy 200.000 PLN. Spolka oswiadcza, ze posiada status duzego przedsiebiorcy w rozumieniu ustawy z dnia 8 marca 2013 r. o przeciwdzialaniu nadmiernym opoznieniom w transakcjach handlowych. Ta wiadomosc wraz z zalacznikami jest przeznaczona dla okreslonego adresata i moze zawierac informacje poufne. W razie przypadkowego otrzymania tej wiadomosci, prosimy o powiadomienie nadawcy oraz trwale jej usuniecie; jakiekolwiek przegladanie lub rozpowszechnianie jest zabronione. This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). If you are not the intended recipient, please contact the sender and delete all copies; any review or distribution by others is strictly prohibited.

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