The 8.10.0 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
* Tool for validating SEV firmware boot measurement of QEMU VMs
The ``virt-qemu-sev-validate`` program will compare a reported SEV/SEV-ES
domain launch measurement, to a computed launch measurement. This
determines whether the domain has been tampered with during launch.
* Support for SGX EPC (enclave page cache)
Users can add a ``<memory model='sgx-epc'>`` device to lauch a VM with
``Intel Software Guard Extensions``.
* Support migration of vTPM state of QEMU vms on shared storage
Pass ``--migration`` option if appropriate in order for ``swtpm`` to
properly migrate on shared storage.
* Improvements
* Mark close callback (un-)register API as high priority
High priority APIs use a separate thread pool thus can help in eliminating
problems with stuck VMs. Marking the close callback API as high priority
allows ``virsh`` to properly connect to the daemon in case the normal
priority workers are stuck allowing other high priority API usage.
* Updated x86 CPU features
The following features for the x86 platform were added:
``v-vmsave-vmload``, ``vgif``, ``avx512-vp2intersect``, ``avx512-fp16``,
``serialize``, ``tsx-ldtrk``, ``arch-lbr``, ``xfd``, ``intel-pt-lip``,
``avic``, ``sgx``, ``sgxlc``, ``sgx-exinfo``, ``sgx1``, ``sgx2``,
``sgx-debug``, ``sgx-mode64``, ``sgx-provisionkey``, ``sgx-tokenkey``,
``sgx-kss``, ``bus-lock-detect``, ``pks``, ``amx``.
* Add support for ``hv-avic`` Hyper-V enlightenment
``qemu-6.2`` introduced support for the ``hv-avic`` enlightenment which
allows to use Hyper-V SynIC with hardware APICv/AVIC enabled.
* qemu: Run memory preallocation with numa-pinned threads
Run the thread allocating memory in the proper NUMA node to reduce overhead.
* RPM packaging changes
- add optional dependancy of ``libvirt-daemon`` on ``libvirt-client``
The ``libvirt-guests.`` tool requires the ``virsh`` client to work
properly, but we don't want to require the installation of the daemon
if the tool is not used.
- relax required ``python3-libvirt`` version for ``libvirt-client-qemu``
The ``virt-qemu-qmp-proxy`` tool requires python but doesn't strictly
need the newest version. Remove the strict versioning requirement in
order to prevent cyclic dependency when building.
* Bug fixes
* Skip initialization of ``cache`` capabilities if host doesn't support them
Hypervisor drivers would fail to initialize on ``aarch64`` hosts with
following error ::
virStateInitialize:657 : Initialisation of cloud-hypervisor state driver failed: no error
which prevented the startup of the daemon.
* Allow incoming connections to guests on routed networks w/firewalld
A change in handling of implicit rules in ``firewalld 1.0.0`` broke
incomming connections to VMs when using ``routed`` network. This is fixed
by adding a new ``libvirt-routed`` zone configured to once again allow
incoming sessions to guests on routed networks.
* Fix infinite loop in nodedev driver
Certain udev entries might be of a size that makes libudev emit EINVAL
which caused a busy loop burning CPU. Fix it by ignoring the return code.
Enjoy.
Jirka
