Release of libvirt-6.5.0
veillard at redhat.com
Fri Jul 3 07:56:25 UTC 2020
Half a day late, but I pushed the 6.5.0 release out, it is as usual
available as a signed tarball and source rpms from the server:
I also tagged and pushed the 6.5.0 python bindings that one can find at
This release includes a number of new features and some improvement,
as well as a crash which had made its way in 6.4.0.
It will also be my last release of libvirt after close to 15 years,
so expect new releases to be signed by Jiri Denemark from now on.
* New Features:
- Allow firmware blobs configuration
QEMU offers a way to tweak how firmware configures itself
and/or provide new configuration blobs. New ``<sysinfo/>``
type is introduced that will hold these new blobs.
It's possible to either specify new value as a string or
provide a filename which contents then serve as the value.
- nodedev: Add ability to create mediated devices
Mediated devices can now be created with ``virNodeDeviceCreateXML()``. This
functionality requires the ``mdevctl`` utility to be installed. The XML
schema for node devices was expanded to support attributes for mediated
- QEMU: add TPM Proxy device support
libvirt can now create guests using a new device type called
"TPM Proxy". The TPM Proxy connects to a TPM Resource Manager
present in the host, enabling the guest to run in secure virtual
machine mode with the help of an Ultravisor. Adding a TPM Proxy to
a pSeries guest brings no security benefits unless the guest is
running on a PPC64 host that has Ultravisor and TPM Resource Manager
support. Only one TPM Proxy is allowed per guest. A guest using
a TPM Proxy device can instantiate another TPM device at the same
time. This device is supported only for pSeries guests via the new
'spapr-tpm-proxy' model of the TPM 'passthrough' backend.
- virhook: Support hooks placed in several files
Running all scripts from directory /etc/libvirt/hooks/<driver>.d in
alphabetical order. Hook script in old place will be executed
as first for backward compatibility.
- qemu: Add support for migratable host-passthrough CPU
QEMU 2.12 made it possible for guests to use a migration-friendly
version of the host-passthrough CPU. This feature is now exposed by
- network: Support NAT with IPv6
It's now possible to use ``<nat ipv6="yes"/>`` in a libvirt network.
- qemu: Auto-fill NUMA information for incomplete topologies
If the NUMA topology is not fully described in the guest XML, libvirt
will complete it by putting all unspecified CPUs in the first NUMA node.
This is only done in the QEMU binary itself supports disjointed CPU
ranges for NUMA nodes.
- qemu: Assign hostdev-backed interfaces to PCIe slots
All SR-IOV capable devices are PCIe, so when their VFs are assigned to
guests they should end up in PCIe slots rather than conventional PCI ones.
* Bug fixes:
- qemu: fixed crash in ``qemuDomainBlockCommit``
This release fixes a regression which was introduced in libvirt v6.4.0
where libvirtd always crashes when a block commit of a disk is requested.
- qemu: fixed zPCI address auto generation on s390
Removes the correlation between the zPCI address attributes uid and fid.
Fixes the validation and autogeneration of zPCI address attributes.
- qemu: Skip pre-creation of NVMe disks during migration
libvirt has no way to create NVMe devices on the target host, so it now
just makes sure they exist and let the migration proceed in that case.
Thanks everybody for the help on putting this release out, and
the gazillion ones before :-)
Enjoy and stay safe !
Daniel Veillard | Red Hat Developers Tools http://developer.redhat.com/
veillard at redhat.com | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
http://veillard.com/ | virtualization library http://libvirt.org/
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