Release of libvirt-9.2.0

[Jiri Denemark]

The 9.2.0 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 feedback. Your work is greatly
appreciated.

* New features

  * qemu: Add support for QCOW2 formatted firmware

    This type of firmware can be picked up either automatically, if the
    corresponding JSON descriptor has the highest priority, or manually by
    using ``<loader format='qcow2'/>`` in the domain XML.

* Improvements

  * qemu: Make firmware selection persistent

    Up until now, firmware autoselection has been performed at domain startup
    time: as a result, changes to the JSON firmware descriptors present on the
    system could have translated to a different firmware being chosen for
    subsequent startups of the same domain, potentially rendering it unbootable
    or lowering the security guarantees. Firmware selection now happens once,
    when the domain is defined, and its results are stored in the domain XML
    to be reused, unchanged, for all subsequent boots.

  * qemu: passt now works when SELinux/AppArmor is enabled

    In the case of SELinux, this requires passt-specific support code to be
    present in the host policy, so it might only work with upcoming operating
    systems and not with existing ones.

  * xen: Support custom UEFI firmware paths

    The Xen libxl driver now supports specifying a custom UEFI firmware path.
    Previously the Xen default was used in all cases.

* Bug fixes

  * qemu: Fix validation of the HPET timer

    Due to a logic bug introduced in libvirt 9.0.0, VM configurations
    explicitly enabling the HPET timer were rejected.

  * qemu: Fix thread-context .host-nodes generation

    With new enough QEMU, libvirt instructs QEMU to set affinity of memory
    allocation threads. But this may have resulted in QEMU being unable to do
    so, as affinity to NUMA nodes inaccessible to emulator thread might have
    been requested.

  * rpc: fix typo in admin code generation

    Fix the bug in the remote ``virt-admin`` code generator, that resulted
    in a crash. Introduced in libvirt 9.1.0.

  * qemu: relax shared memory check for vhostuser daemons

    Fix hotplug of virtiofs ``filesystem`` after restarting libvirtd.
    Before, libvirtd would incorrectly complain about missing shared
    memory.

Enjoy.

Jirka