The 12.5.0 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.
* New features
* bhyve: Extend the guest agent support
The bhyve driver now supports several APIs on top of the guest agent:
* Getting and setting guest OS SSH keys
* Setting guest OS user's password
* Getting and setting guest OS time
Additionally, domain rebooting and shutting down using the agent
is now supported.
* bhyve: Support ``on_reboot`` and ``on_poweroff`` actions
The bhyve driver now respects the domain's
``on_reboot`` and ``on_poweroff`` actions.
* bhyve: Support populating SMBIOS fields
Add support for populating the SMBIOS fields as defined
by the ``<sysinfo type='smbios'>`` section of the domain's XML.
* qemu: Add support for standalone VNC server
Starting with this release, libvirt might spawn a standalone
qemu-vnc process instead of QEMU's built-in VNC server, for
enhanced security.
* Improvements
* Enable hyperv driver on RHEL
The spec file now enables the Hyper-V driver when building on
Red Hat Enterprise Linux.
* remote: allow passing argv to the ext transport
The ext transport not only allows spawning a process (via the
``command`` attribute), but as of this release also
specifying additional arguments to it, via ``argv``
attribute.
* Introduce ``VIR_CONNECT_GET_DOMAIN_CAPABILITIES_SUPPORTED_CPU_FEATURES``
flag
Some CPU features may be enabled explicitly, but should not automatically
become part of a host-model CPU and thus are not normally visible in domain
capabilities. Users can now request such features to be shown in the
host-model CPU in domain capabilities using the new flag. It is exposed as
``--supported-cpu-features`` option for ``virsh domcapabilities``.
* Bug fixes
* Ensure proper shutdown ordering of ``virtlogd`` and ``virtlockd``
The logging and locking helper daemons now shutdown after the daemon running
the ``qemu`` hypervisor driver since their services may be needed to
shutdown
the VMs run by the qemu driver.
* qemu: Record selected ``virtio`` video device model into the XML
The ``qemu`` driver may depending on platform and installed QEMU modules
pick one of two distinct virtio video device types for the primary device.
The choice was not recorded in the XML and since the devices are
incompatible
it can cause failures on migration when the destination picks the wrong
device. This version thus records the picked device both for running VMs
on upgrade and for new devices to prevent this problem in the future.
* bhyve: Guest agent related fixes
A few bugs related to the guest agent communication are fixed, from
not properly initializing an agent to crashing when the agent
socket cannot be opened.
* Fix domain capabilities on AMD CPUs
QEMU 10.1 and newer does not automatically enable features from
arch-capabilities MSR on AMD CPUs as they are specific for Intel CPUs and
KVM is just emulating them on AMD. But advertising them on AMD CPUs can
cause Windows guest OS to crash so they are hidden by default now. But the
features are still supported and can be enabled explicitly, for example,
when migrating existing domains. Libvirt now detects this scenario and
properly shows the affected features as enabled in domain capabilities when
requested by ``VIR_CONNECT_GET_DOMAIN_CAPABILITIES_SUPPORTED_CPU_FEATURES``
flag.
* vmx: Properly show all 64 disks on a SCSI controller
Due to an off-by-one error a last, 64th disk was not shown in a domain XML,
which is now fixed.
Enjoy.
Jirka
