It's out, one day late, though I did the build and pushed the tag in git yesterday, but I had forgotten to push the commit, thanks Boris for raising this to me. So it's now available as signed tarball and rpm source package at the usual place: https://libvirt.org/sources/ This release come with a number of new features as listed below but also make the packaging change of not relying on gnulib anymore for platform compatibility, so there are some serious changes in this version: New features: - qemu: new rng backend type: builtin It implements qemu builtin rng backend. That uses getrandom syscall to generate random, no external rng source needed. Available since QEMU 4.2. - support for virtio+hostdev NIC <teaming> QEMU 4.2.0 and later, combined with a sufficiently recent guest virtio-net driver (e.g. the driver included in Linux kernel 4.18 and later), supports setting up a simple network bond device comprised of one virtio emulated NIC and one hostdev NIC (which must be an SRIOV VF). (in QEMU, this is known as the "virtio failover" feature). The allure of this setup is that the bond will always favor the hostdev device, providing better performance, until the guest is migrated - at that time QEMU will automatically unplug the hostdev NIC and the bond will send all traffic via the virtio NIC until migration is completed, then QEMU on the destination side will hotplug a new hostdev NIC and the bond will switch back to using the hostdev for network traffic. The result is that guests desiring the extra performance of a hostdev NIC are now migratable without network downtime (performance is just degraded during migration) and without requiring a complicated bonding configuration in the guest OS network config and complicated unplug/replug logic in the management application on the host - it can instead all be accomplished in libvirt with the interface <teaming> subelement "type" and "persistent" attributes. - support BR_ISOLATED flag for guest interfaces attached to a Linux host bridge Since Linux kernel 4.18, the Linux host bridge has had a flag BR_ISOLATED that can be applied to individual ports. When this flag is set for a port, traffic is blocked between that port and any other port that also has the BR_ISOLATED flag set. libvirt domain interface config now supports setting this flag via the <port isolated='yes'/> setting. It can also be set for all connections to a particular libvirt network by setting the same option in the network config - since the port for the host itself does not have BR_ISOLATED set, the guests can communicate with the host and the outside world, but guests on that network can't communicate with each other. This feature works for QEMU and LXC guests with interfaces attached to a Linux host bridge. - qemu: Introduce the 'armvtimer' timer type QEMU 5.0 introduces the ability to control the behavior of the virtual timer for KVM ARM/virt guests, and this new timer type exposes the same capability to libvirt users. - qemu: Storage configuration improvements Libvirt now accepts <backingStore type='volume'> and allows specifying the offset and size of the image format container inside the storage source via the <slices> subelement. - qemu: Introduce the 'tpm-spapr' TPM model This device, available starting from QEMU 5.0, is limited to pSeries guests. Improvements: - qemu: Image format probing is allowed in certain cases To resolve regressions when users didn't specify the backing image format in the overlay, libvirt now probes the format in certain secure scenarios which fixes a few common existing cases. Additionally the knowledge base was extended to provide more information on how to rectify the problem. - qemu: Support "dies" in CPU topology This CPU topology concept, new in QEMU 4.1.0, sits between the existing "socket" and "core". - libxl: Add support for Credit2 scheduler parameters - lxc: Add support LXC 3 network configuration format Bug fix: - conf: Do not generate machine names ending with a dash Recent systemd versions do not allow them. Packaging changes: - use of gnulib has been completely eliminated Historically libvirt has embedded gnulib to provide fixes for various platform portability problems. This usage has now been eliminated and alternative approaches for platform portability problems adopted where required. This has been validated on the set of platforms covered by automated CI build testing. Other modern Linux distros using glibc are expected to work. Linux distros using non-glibc packages, and other non-Linux platforms may encounter regressions when building this release. Please report any build problems encountered back to the project maintainers for evaluation. Thanks everybody for your help with this release, and sorry for the delay, Daniel -- Daniel Veillard | Red Hat Developers Tools http://developer.redhat.com/ veillard@xxxxxxxxxx | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | virtualization library http://libvirt.org/
