Entering freeze for libvirt-6.4.0
by Daniel Veillard
We are getting at the end of the month and Monday is closed here,
so I though it was better to roll RC1 even if I had not yet announced
the release plan, I assume it's better than skipping by a few days.
So it is there, I tagged it in git head and pushed signed tarball
and source rpm to the usual place:
https://libvirt.org/sources/
I seems to work in my limited testing and there is only a few red spots
on the CI https://ci.centos.org/view/libvirt/ but TBH that doesn't look
critical.
Please give it a try, I will try to roll RC2 on Friday, then assuming
everything looks fine 6.4.0 could go out on Tuesday,
thanks in advance,
Daniel
--
Daniel Veillard | Red Hat Developers Tools http://developer.redhat.com/
veillard(a)redhat.com | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
http://veillard.com/ | virtualization library http://libvirt.org/
3 years, 11 months
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Release of libvirt-6.3.0
by Daniel Veillard
It's out, tagged in git and the signed sources tarball and rpm are
available from the usual place:
https://libvirt.org/sources/
I have also pushed the python bindings 6.3.0 release at their usual place
https://libvirt.org/sources/python/
Among the things to note is the revamp of the vbox support, deprecating old
5.x versions but adding new 6.x API to control the hypervisor.
New features:
- qemu: support disabling hotplug/unplug of PCIe devices
libvirt can now set the "hotplug" option for pcie-root-ports and
pcie-switch-downstream-ports, which can be used to disable
hotplug/unplug of devices from these ports (default behavior is for
these controllers to accept all hotplug/unplug attempts, but this is
often undesireable).
- vbox: added support for version 6.0 and 6.1 APIs
libvirt can now support use of the VirtualBox 6.0 and 6.1 APIs. This is
compile tested only, so we are looking for feedback from users on how
well it works in practice.
- xen: Add support for 'e820_host' hypervisor feature
e820_host is a Xen-specific option only available for PV guests. When
enabled it provides the guest with a virtual e820 memory map based on
the host one. It must be enabled to allow hotplugging PCI devices to PV
guests, particularly when memory ballooning is enabled.
- xen: Add support for 'passthrough' hypervisor feature
passthrough is a Xen-specific option new to Xen 4.13 that enables PCI
passthrough for guests. It must be enabled to allow hotplugging PCI
devices.
- qemu: support async IO mode 'io_uring'
Linux 5.1 introduces a fast and efficient async IO interface io_uring,
then qemu implements that in version 5.0. It could be used in file,
host device and host cdrom backend by io='io_uring' of disk XML.
- Lease time option included for network DHCP settings
Users can now configure expiry time for leases for networks where
libvirt manages DHCP. The time can be specified for whole range and/or
fine tuned per individual host.
- qemu: Implement pSeries Spectre mitigation features
Users can now setup the following capabilities of pSeries guests: CFPC
(Cache Flush on Privilege Change), SBBC (Speculation Barrier Bounds
Checking) and IBS (Indirect Branch Speculation).
Improvements:
- qemu: Allow checkpoint redefine for offline VMs
Skip the liveness and capability checks when redefining checkpoints as
we don't need QEMU interactions to update the metadata.
- daemons: Improve timeout handling
Daemons now support --timeout 0 which suppresses daemon killing after
given time of inactivity.
- qemu: Add support for 'multidevs' option
This option prevents misbehaviours on guest if a QEMU 9pfs export
contains multiple devices, due to the potential file ID collisions this
otherwise may cause.
Bug fixes:
- qemu: Various embed driver fixes
When using shared resources from embed driver (e.g. hugepages,
machined, etc.) libvirt now generates an unique handler that is not
conflicting with other embed drivers or system or session daemons.
- cpu: Distinguish Cascadelake-Server from Skylake-Server
Libvirt now properly detects Cascadelake-Server and Skylake-Server
processors which differ only in stepping.
- qemu: Fix domain restore from a block device
When using namespaces, libvirt was unable to restore a domain from a
block device because libvirt tried to relabel the device inside the
namespace while QEMU was given FD to the block device in the host.
- node_device_udev: Handle move events
Libvirt now handles move event which is emitted on a NIC rename.
- qemu: Fix capabilities probing with TCG
Libvirt no long assumes TCG is always available. It now detects whether
QEMU supports TCG and reports it accordingly.
Removed features:
- vbox: removed support for version 5.0 and 5.1 APIs
libvirt no longer supports use of VirtualBox 5.0 and 5.1 since these
versions reached their end of life on 2017/05 and 2018/04 respectively.
Thanks everybody for your help with this release,
stay safe, enjoy !
Daniel
--
Daniel Veillard | Red Hat Developers Tools http://developer.redhat.com/
veillard(a)redhat.com | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
http://veillard.com/ | virtualization library http://libvirt.org/
4 years
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