Release of libvirt-9.5.0

[Jiri Denemark]

The 9.5.0 release of both libvirt and libvirt-python is tagged and
signed tarballs and source RPMs 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.

* New features

  * qemu: Allow configuring the ``discard-no-unref`` feature of ``qcow2`` driver

    The new ``discard_no_unref`` attribute of the ``disk`` ``driver`` element
    controls whether the ``qcow2`` driver in qemu unrefs clusters inside the
    image on discard requests. Disabling cluster unrefing decreases fragmentation
    of the image.

* Improvements

  * qemu: Include maximum physical address size in baseline CPU

    When computing a baseline CPU definition for a set of hosts, we need to
    include maximum physical address size in the result to make sure it is
    compatible with all hosts even if their supported physical address sizes
    differ.

  * conf: Properly handle slots for non-DIMM ``<memory>`` devices

    Memory devices such as ``virtio-mem`` don't need a memory slot as they are
    PCI devices. ``libvirt`` now properly accounts the memory slots for such
    devices as well as specifying the ``slots`` attribute of the ``<maxMemory>``
    element is no longer needed unless DIMM-like devices are to be used.

  * ``passt`` log and port forwarding improvements

    Libvirt now ensures that the ``passt`` helper process can access the
    configured log file even when it's placed in a directory without permissions.

    The ``<portForward>`` element of a passt-backed interface can now omit the
    ``address`` attribute as it's enough to specify a ``dev``.

* Bug fixes

  * lxc: Allow seeking in ``/proc/meminfo`` to resove failure with new ``procps`` package

    New version of the ``free`` command from ``procps`` package seeks into the
    ``/proc/meminfo`` file, which was not supported by the instance of the file
    exposed via LXC causing a failure.

  * qemu: Fix rare race-condition when detaching a device

    The device removal handler callback function didn't re-check the state of
    the unplug operation after a timeout, which could rarely cause that the
    device was removed from the VM but not the definition.

  * qemu: Fix NUMA memory allocation logic

    QEMU allocates memory via the emulator thread thus that has to be allowed
    to access all configured NUMA nodes of the VM rather than just the one where
    it's supposed to be pinned.


  * qemu: Fix setup of ``hostdev`` backed ``<interface>``

    The proper steps to initialize the host device were skipped for interfaces
    due to a logic bug preventing start of VM which used them.

Enjoy.

Jirka