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Release of libvirt-7.2.0



The 7.2.0 release of both libvirt and libvirt-python is tagged and
signed tarballs and source RPMs are available at

    https://libvirt.org/sources/
    https://libvirt.org/sources/python/

Thanks everybody who helped with this release by sending patches,
reviewing, testing, or providing any other feedback. Your work is
greatly appreciated.

* New features

  * qemu: Implement domain memory dirty rate calculation API

    New API ``virDomainStartDirtyRateCalc()`` and virsh command
    ``domdirtyrate-calc`` are added to start calculating a live domain's
    memory dirty rate.

  * qemu: Support reporting memory dirty rate stats

    The memory dirty rate stats can be obtained through ``virsh domstats
    --dirtyrate`` via the virConnectGetAllDomainStats API.

  * qemu: Full disk backups via ``virDomainBackupBegin``

    The qemu hypervisor driver now allows taking full disk backups via the
    ``virDomainBackupBegin`` API and the corresponding virsh wrapper.

    In future releases the feature will be extended to also support incremental
    backups (where only the difference since the last backup is copied) when
    qemu adds the required functionality.

  * Add support for audio backend specific settings

    With this release a new ``<audio/>`` element is introduced that allows
    users to configure audio output for their guests.

* Improvements

  * qemu: Compatibility with QEMU 6.0 for certain hot-(un)-plug operations

    Libvirt 7.2.0 is required for compatibility with the upcoming QEMU 6.0
    release for hotplug and hotunplug of certain devices and helpers, such as
    iothreads, chardevs, RNG devices, disks with secret, ...

  * qemu: Various improvements to embedded mode

    Embedded mode for the QEMU driver, as well as the ``virt-qemu-run`` tool
    saw improvements in handling of domain life cycle, temporary directories
    creation (important when using disk secrets) and other minor fixes.

  * Documentation of split daemon related config files

    Split daemons read configuration files upon their start. These were never
    documented though.

* Bug fixes

  * Check host CPU for forbidden features

    CPU feature policy did not work as expected with ``host-passthrough`` and
    features supported by physical host. CPU features were not filtered out
    when `` check`` was set to ``full``.

  * Fix virNetworkUpdate() to work with split daemons

    Due to a bug in our code, virNetworkUpdate() did not work with split daemon
    unless management application connected to virtnetworkd directly.

  * qemu: increase locked memory limit when a vDPA device is present

    Just like VFIO devices, vDPA devices may need to have all guest memory
    pages locked/pinned in order to operate properly. These devices are now
    included when calculating the limit for memory lock.

  * Don't log error if SRIOV PF has no associated netdev

    Some SRIOV PFs don't have a netdev associated with them in which case
    libvirtd reported an error and refused to start. This is now fixed.

  * qemu: Only raise memlock limit if necessary

    Attempting to set the memlock limit might fail if we're running
    in a containerized environment where ``CAP_SYS_RESOURCE`` is not
    available, and if the limit is already high enough there's no
    point in trying to raise it anyway.

  * Restore security context of swtpm.log

    If a guest with emulated TPM was started and the daemon was restarted
    afterwards, the security context of the per-domain ``swtpm.log`` file was
    not restored on domain shutdown leaving it unable to be started again.

  * virtlogd|virtlockd: Fixed crash when upgrading the daemons in-place

    A bug preventing the in-place upgrade of ``virtlogd`` and ``virtlockd``
    daemons was fixed, so they can again be upgraded without dropping the log
    file descriptors or locks on files.

Enjoy.

Jirka


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