March 2025 - Devel - libvirt List Archives

[PATCH] Fix a typo in docs/formatdomain.rst
by Yalan Zhang 06 Mar '25

06 Mar '25

Fix a typo and update the setting in the example. The documentation explains that "when passt is the backend,...the ``<source>`` path/type/mode are all implied to be "matching the passt process" so **must not** be specified." Additionally, this source dev setting is ignored in practice. Therefore, let's remove it from the example to avoid any confusion. Signed-off-by: Yalan Zhang <yalzhang(a)redhat.com> --- docs/formatdomain.rst | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst index cbe378e61d..e84e0a0e8e 100644 --- a/docs/formatdomain.rst +++ b/docs/formatdomain.rst @@ -5154,7 +5154,7 @@ destined for the host toward the guest instead), and a socket between passt and QEMU forwards that traffic on to the guest (and back out, of course). -*(:since:`Since 11.1.0 (QEMU and KVM only)` you may prefer to use the +:since:`Since 11.1.0 (QEMU and KVM only)` you may prefer to use the passt backend with the more efficient and performant type='vhostuser' rather than type='user'. All the options related to passt in the paragraphs below here also apply when using the passt backend with @@ -6378,7 +6378,6 @@ setting guest-side IP addresses with ``<ip>`` and port forwarding with <interface type='vhostuser'> <backend type='passt'/> <mac address='52:54:00:3b:83:1a'/> - <source dev='enp1s0'/> <ip address='10.30.0.5 prefix='24'/> </interface> </devices> -- 2.48.1

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[PATCH 0/5] Introduce UEFI shim support
by Michal Privoznik 06 Mar '25

06 Mar '25

*** BLURB HERE *** Michal Prívozník (5): conf: Introduce os/shim element qemu_capabilities: Introduce QEMU_CAPS_MACHINE_SHIM qemu_validate: Check whether UEFI shim is supported qemu_command: Generate cmd line for UEFI shim security: Set seclabels on UEFI shim docs/formatdomain.rst | 5 +++++ src/conf/domain_conf.c | 12 ++++++++---- src/conf/domain_conf.h | 1 + src/conf/domain_validate.c | 6 ++++++ src/conf/schemas/domaincommon.rng | 5 +++++ src/qemu/qemu_capabilities.c | 2 ++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 2 ++ src/qemu/qemu_validate.c | 7 +++++++ src/security/security_dac.c | 10 ++++++++++ src/security/security_selinux.c | 9 +++++++++ src/security/virt-aa-helper.c | 4 ++++ tests/qemucapabilitiesdata/caps_10.0.0_s390x.xml | 1 + tests/qemucapabilitiesdata/caps_10.0.0_x86_64.xml | 1 + .../launch-security-sev-direct.x86_64-latest.args | 1 + .../launch-security-sev-direct.x86_64-latest.xml | 1 + tests/qemuxmlconfdata/launch-security-sev-direct.xml | 1 + 17 files changed, 65 insertions(+), 4 deletions(-) -- 2.45.3

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[PATCH 0/8] qemu: Follow-up to "schemas: domaincaps: Add missing schema for '<cpu0Id>'"
by Peter Krempa 04 Mar '25

04 Mar '25

As promised in the original patch fixing the schema this is the test-case follow up. As not entirely expected it's a bit more involved and also contains fixes for other bugs. Peter Krempa (8): qemu: capabilities: Parse 'cpu0Id' from capability cache XML domaincapstest: Use proper input file based on 'variant' in 'fillQemuCaps' domaincapstest: Allow tests of all capability variants qemucapabilitiesdata: Document '+amdsev' variant qemucapabilitiestest: Add test data for 'qemu-9.2' on a SEV-enabled AMD host qemuxmlconftest: Propery discriminate output files for caps variants qemuxmlconftest: Add 'latest' version of 'launch-security-sev*' originally using 6.0.0 qemuxmlconftest: Add '+amdsev' versions of the rest of 'launch-security-sev*' cases src/qemu/qemu_capabilities.c | 1 + .../qemu_7.0.0-hvf.aarch64+hvf.xml | 43 +- .../qemu_7.2.0-hvf.x86_64+hvf.xml | 952 +- .../qemu_9.2.0-q35.x86_64+amdsev.xml | 852 + .../qemu_9.2.0-tcg.x86_64+amdsev.xml | 1821 + .../qemu_9.2.0.x86_64+amdsev.xml | 852 + tests/domaincapstest.c | 21 +- tests/qemucapabilitiesdata/README.rst | 4 + .../caps_9.2.0_x86_64+amdsev.replies | 43857 ++++++++++++++++ .../caps_9.2.0_x86_64+amdsev.xml | 3132 ++ .../caps.x86_64+amdsev.xml | 29 + ...h64-virt-headless.aarch64-latest+hvf.args} | 0 ...ch64-virt-headless.aarch64-latest+hvf.xml} | 0 ...86_64-q35-headless.x86_64-latest+hvf.args} | 0 ...x86_64-q35-headless.x86_64-latest+hvf.xml} | 0 ...urity-sev-direct.x86_64-latest+amdsev.args | 38 + ...curity-sev-direct.x86_64-latest+amdsev.xml | 48 + ...ng-platform-info.x86_64-latest+amdsev.args | 35 + ...ing-platform-info.x86_64-latest+amdsev.xml | 43 + ...security-sev-snp.x86_64-latest+amdsev.args | 42 + ...-security-sev-snp.x86_64-latest+amdsev.xml | 73 + ...nch-security-sev.x86_64-latest+amdsev.args | 35 + ...unch-security-sev.x86_64-latest+amdsev.xml | 45 + tests/qemuxmlconftest.c | 40 +- tests/testutilsqemu.c | 6 +- 25 files changed, 51941 insertions(+), 28 deletions(-) create mode 100644 tests/domaincapsdata/qemu_9.2.0-q35.x86_64+amdsev.xml create mode 100644 tests/domaincapsdata/qemu_9.2.0-tcg.x86_64+amdsev.xml create mode 100644 tests/domaincapsdata/qemu_9.2.0.x86_64+amdsev.xml create mode 100644 tests/qemucapabilitiesdata/caps_9.2.0_x86_64+amdsev.replies create mode 100644 tests/qemucapabilitiesdata/caps_9.2.0_x86_64+amdsev.xml create mode 100644 tests/qemucaps2xmloutdata/caps.x86_64+amdsev.xml rename tests/qemuxmlconfdata/{hvf-aarch64-virt-headless.aarch64-latest.args => hvf-aarch64-virt-headless.aarch64-latest+hvf.args} (100%) rename tests/qemuxmlconfdata/{hvf-aarch64-virt-headless.aarch64-latest.xml => hvf-aarch64-virt-headless.aarch64-latest+hvf.xml} (100%) rename tests/qemuxmlconfdata/{hvf-x86_64-q35-headless.x86_64-latest.args => hvf-x86_64-q35-headless.x86_64-latest+hvf.args} (100%) rename tests/qemuxmlconfdata/{hvf-x86_64-q35-headless.x86_64-latest.xml => hvf-x86_64-q35-headless.x86_64-latest+hvf.xml} (100%) create mode 100644 tests/qemuxmlconfdata/launch-security-sev-direct.x86_64-latest+amdsev.args create mode 100644 tests/qemuxmlconfdata/launch-security-sev-direct.x86_64-latest+amdsev.xml create mode 100644 tests/qemuxmlconfdata/launch-security-sev-missing-platform-info.x86_64-latest+amdsev.args create mode 100644 tests/qemuxmlconfdata/launch-security-sev-missing-platform-info.x86_64-latest+amdsev.xml create mode 100644 tests/qemuxmlconfdata/launch-security-sev-snp.x86_64-latest+amdsev.args create mode 100644 tests/qemuxmlconfdata/launch-security-sev-snp.x86_64-latest+amdsev.xml create mode 100644 tests/qemuxmlconfdata/launch-security-sev.x86_64-latest+amdsev.args create mode 100644 tests/qemuxmlconfdata/launch-security-sev.x86_64-latest+amdsev.xml -- 2.48.1

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[PATCH] docs/api.rst: revert erroneously change of Once -> OnDevice
by Cleber Rosa 04 Mar '25

04 Mar '25

Commit af1b89d1d for some reason changed a perfectly fine statement to one that I could not understand. Let's revert it. Signed-off-by: Cleber Rosa <crosa(a)redhat.com> --- docs/api.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/api.rst b/docs/api.rst index cdba642967..243303de68 100644 --- a/docs/api.rst +++ b/docs/api.rst @@ -26,7 +26,7 @@ name will default to a preselected hypervisor, but it's probably not a wise thing to do in most cases. See the `connection URI <uri.html>`__ page for a full descriptions of the values allowed. -OnDevice the application obtains a +Once the application obtains a `virConnectPtr <html/libvirt-libvirt-host.html#virConnectPtr>`__ connection to the hypervisor it can then use it to manage the hypervisor's available domains and related virtualization resources, -- 2.48.1

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[PATCH] schemas: domaincaps: Add missing schema for '<cpu0Id>'
by Peter Krempa 03 Mar '25

03 Mar '25

Fixes: 0236e6154c46603bc443eda2f05c8ce511c55b08 Resolves: https://issues.redhat.com/browse/RHEL-81890 Signed-off-by: Peter Krempa <pkrempa(a)redhat.com> --- I'll also attempt to add tests for this once I'll be able to get to a capability dump from a sev-es enabled box. src/conf/schemas/domaincaps.rng | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/conf/schemas/domaincaps.rng b/src/conf/schemas/domaincaps.rng index 3559d2ae05..595dbcd634 100644 --- a/src/conf/schemas/domaincaps.rng +++ b/src/conf/schemas/domaincaps.rng @@ -438,6 +438,11 @@ <data type="unsignedInt"/> </element> </optional> + <optional> + <element name="cpu0Id"> + <data type="string"/> + </element> + </optional> </element> </define> -- 2.48.1

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[PATCH] qemuPrepareNVRAMFile: Fix NVRAM image conversion check
by Peter Krempa 03 Mar '25

03 Mar '25

In case when user provides custom paths (those not covered by the JSON firmware descriptor files or the default locations) for the loader and nvram template no auto-detection will be performed and user's config will be taken at face value. Historically when 'templateFormat' didn't exist we assumed that the 'format' field covers both. Thus if 'templateFormat' is VIR_STORAGE_FILE_NONE we need to skip the check forbidding image format conversion for 'file' backed to avoid breaking legacy configs with manual/non-detected format assuming that user picked the correct format. Add a comment to the declaration of 'nvramTemplateFormat' noting the above for future reference. Resolves: https://issues.redhat.com/browse/RHEL-81731 Fixes: 2aa644a2fc8 Signed-off-by: Peter Krempa <pkrempa(a)redhat.com> --- src/conf/domain_conf.h | 7 +++++++ src/qemu/qemu_process.c | 5 ++++- 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index d4fa79cb84..1fcc3fdb98 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -2362,6 +2362,13 @@ struct _virDomainLoaderDef { virStorageSource *nvram; bool newStyleNVRAM; char *nvramTemplate; /* user override of path to master nvram */ + /* Historically it was assumed that the format of the template and the + * actual nvram image are identical, which is no longer true. + * + * Note: if 'nvramTemplate' comes from the user and is not overriden by + * auto-detection nvramTemplateFormat may be VIR_STORAGE_FILE_NONE. Code + * shall assume that the template format matches if it isn't provided. + */ virStorageFileFormat nvramTemplateFormat; }; diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 0d9b8bcb93..7b7b5c17e3 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -4709,7 +4709,10 @@ qemuPrepareNVRAMFile(virQEMUDriver *driver, return -1; } - if (loader->nvram->format != loader->nvramTemplateFormat) { + /* If 'nvramTemplateFormat' is empty it means that it's a user-provided + * template which we couldn't verify. Assume the user knows what they're doing */ + if (loader->nvramTemplateFormat != VIR_STORAGE_FILE_NONE && + loader->nvram->format != loader->nvramTemplateFormat) { virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", _("conversion of the nvram template to another target format is not supported")); return -1; -- 2.48.1

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Release of libvirt-11.1.0
by Jiri Denemark 03 Mar '25

03 Mar '25

The 11.1.0 release of both libvirt and libvirt-python is tagged and signed tarballs are available at https://download.libvirt.org/ https://download.libvirt.org/python/ Thanks everybody who helped with this release by sending patches, reviewing, testing, or providing feedback. Your work is greatly appreciated. * Packaging changes * De-modularize the 'fs' storage file backend The storage file backend for local files uses only code which we compile into the internal libraries anyways so there's no point in having it as a loadable module. The ``storage-file/libvirt_storage_file_fs.so`` module no longer exists and its functionality is embedded directly. * Removed features * vbox: removed support for version 6.1 APIs Libvirt no longer supports use of VirtualBox 6.1 since this version reached its end of life on 2024/01. * New features * nodedev: Support ccwgroup based qeth devices CCW group devices are devices that use multiple subchannels on the mainframe's channel subsystem. A qeth group device maps to subchannels and their corresponding device numbers and device bus-IDs. The ``ccwgroup`` device nodes are placed besides the subchannel nodes under computer and list the group members within a new ``ccwgroup`` capability. A new capability ``ccwgroup_member`` is added into capability ``ccw`` to represent a device membership to a ccwgroup. Filters are added to find ccwgroups as well as ccwgroup members. * ch: Support handling events from cloud-hypervisor The ch driver now supports handling events from the cloud-hypervisor. Events include VM lifecyle operations such as shutdown, pause, resume, etc. Libvirt will now read these events and take actions such as updating domain state, etc. * Introduce virtio-mem ``<memory/>`` model for s390 guests The virtio-mem model of ``<memory/>`` device can now be used with s390 guests. * Support using passt as the backend for interface type='vhostuser' The combination of vhostuser transport with passt as the backend provides high performance, fully featured networking without the need for libvirt or QEMU to have any elevated privileges or capabilities. Configuration and features are identical to the configuration for type='user' with the passt backend. * Improvements * qemu: I/O error messages can be queried via ``virDomainGetMessages()`` The qemu hypervisor driver now preserves the last I/O error message along with the timestamp when it was recorded and preserves it to be queried via ``virDomainGetMessages()``. * Bug fixes * tools: ssh-proxy: Check if domain is running before connecting to it If domain is not running but has a static CID configured for its VSOCK then the ssh-proxy parsed it anyways. This may have resulted in mistakenly connecting to a different domain. Domain status is checked before parsing its CID. * apparmor: Allow SGX if configured If domain has ``<memory model='sgx-epc'\>`` configured then libvirt now adds corresponding devices into a per-domain profile so that AppArmor does not deny QEMU access to them. * qemu: Fix crash when starting a domain on a host with unknown host CPU On hosts where we cannot detect a host CPU model (mostly aarch64 hosts) starting a domain with a custom CPU model caused a crash of virtqemud. The bug was introduced in libvirt-10.9.0 Enjoy. Jirka

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