6:50 a.m.
The 7.7.0 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
* Add support for Fibre Channel VMID
New VM element ``<fibrechannel appid=''/>`` was added to allow users to
set
their ``appid`` for each VM which will be used by kernel to create Fibre
Channel VMID. This allows various QoS levels, access control or collecting
telemetry data per VM.
* Improvements
* virsh: Allow XML validation for define of: storage pool, network, secret,
nwfilter, interface
* Add flag ``VIR_STORAGE_POOL_DEFINE_VALIDATE`` to validate storage pool
input xml. For virsh, users can use it as ``virsh pool-define --validate``.
* Add flag ``VIR_NETWORK_DEFINE_VALIDATE`` to validate network input xml. For
virsh, users can use it as ``net-define --validate``.
* Add flag ``VIR_SECRET_DEFINE_VALIDATE`` to validate secret input xml. For
virsh, users can use it as ``secret-define --validate``.
* Add flag ``VIR_NWFILTER_DEFINE_VALIDATE`` to validate nwfilter input xml.
For virsh, users can use it as ``nwfilter-define --validate``.
* Add flag ``VIR_INTERFACE_DEFINE_VALIDATE`` to validate interface input xml.
For virsh, users can use it as ``iface-define --validate``.
* Add SecurityManager APIs for labeling network devices
New ``virSecurityManagerSetNetdevLabel`` and ``virSecurityManagerSetNetdevLabel``
APIs are introduced and implemented in the Apparmor security driver.
The qemu driver uses the APIs to label vhostuser ports on hotplug and
restore labeling on unplug.
* vmx: Parse vm.genid and support super wide SCSI bus
The genid attribute is now reported for VMX guests. Libvirt can now
properly process super wide SCSI bus (64 units).
* qemu: Lifecycle action (``on_poweroff``/``on_reboot``) handling improvements
The handling of lifecycle actions was fixed and improved in multiple ways:
- ``restart-rename`` action was forbidden
The action was never properly implemented in the qemu driver and didn't
actually result in a restart of the VM but rather termination. The qemu
driver now rejects such configurations.
- ``preserve`` action was forbidden
Similarly to the previous case this never worked as the intended semantics
of the actions dictate. It's better to not allow it at all until there's a
proper implementation
- ``reboot`` action of ``on_poweroff`` now actually works
The guest OS is now rebooted instead of terminating the VM when the
``reboot`` action is used and the guest OS powers down. Note that it's
incompatible with ``on_reboot`` set to ``destroy``.
- Changes in action action of ``on_reboot`` are now updated with qemu
Libvirtd can now properly update the ``on_reboot`` action in qemu which
allows proper handling when changing between ``reboot`` and ``destroy``
actions. In addition, switching from ``reboot`` to ``destroy`` was
forbidden for older qemus which don't support the update API as the guest
could still reboot and execute some instructions until it was terminated.
* Bug fixes
* qemu: Open chardev logfile on behalf of QEMU
Guests with a logfile configured for their chardevs are now able to start
even when no virtlogd is configured.
* virhostmem: Handle numactl-less build in hugepages allocation/reporting
Some architectures don't have notion of NUMA (e.g. s390x) but do support
hugepages. Libvirt silently ignored requests to allocate/report hugepage
pool when built without numactl. This is now fixed and the pool can be
allocated/reported on properly.
* qemu: Record proper ``backing`` format for overlays of qcow2+luks images
Libvirt would record ``luks`` instead of ``qcow2`` into the metadata. In
practice this is a problem only when inspecting images manually via
``qemu-img`` as with libvirt users must use full specification of the
backing chain in the domain XML which supersedes information recorded in
the image metadata.
Enjoy.
Jirka