[libvirt] Release of libvirt-5.6.0

It's out ! Tagged in git and with signed tarball and source rpm at the usual place: https://libvirt.org/sources/ I also released the 5.6.0 python bindings for the release that can be found at: https://libvirt.org/sources/python/ This release includes a number of new features, notably the checkpoint APIs removes the sxpr xen support and carries a set of improvement and bug fixes as usual: New features: - qemu: Introduce a new video model of type 'bochs' Introduce a new video model type that supports the bochs-display device that was added in qemu version 3.0. - api: new virDomainCheckpoint APIs Introduce several new APIs for creating and managing checkpoints in the test and qemu drivers (the latter requires qcow2 images). Checkpoints serve as a way to tell which portions of a disk have changed since a point in time. - qemu: Add support for overriding max threads per process limit systemd-based systems impose a limit on the number of threads a process can spawn, which in some cases can be exceeded by QEMU processes running VMs. Add a max_threads_per_process option to qemu.conf to override the system default. - Remember original owners and SELinux labels of files When a domain is starting up libvirt changes DAC and SELinux labels so that domain can access it. However, it never remembered the original labels and therefore the file was returned back to root:root. With this release, the original labels are remembered and restored properly. - network: Allow passing arbitrary options to dnsmasq This works similarly to the existing support for passing arbitary options to QEMU, and just like that feature it comes with no support guarantees. Removed features: - xen: Remove sxpr config support Remove the sxpr style config parser and formatter a year after the xend driver was removed. Improvements: - qemu: Allow XML validation for snapshot creation Add flag VIR_DOMAIN_SNAPSHOT_CREATE_VALIDATE to validate snapshot input XML. For virsh, users can use it as virsh snapshot-create --validate. - Support encrypted soft TPM A soft TPM backend could be encrypted with passphrase. Now libvirt supports using a secret object to hold the passphrase, and referring to it via the encryption element of the TPM device. - test driver: Expand API coverage Additional APIs have been implemented in the test driver. - Implement per-driver locking Drivers now acquire a lock when they're loaded, ensuring that there can never be two instances of the same driver active at a time. - nss: Report newer addresses first In some cases, a guest might be assigned a new IP address by DHCP before the previous lease has expired, in which case the NSS plugin will correctly report both addresses; many applications, however, ignore all addresses but the first, and may thus end up trying to connect using a stale address. To prevent that from happening, the NSS plugin will now always report the newest address first. - util: Optimize mass closing of FDs when spawning child processes When the limit on the number of FDs is very high, closing all unwanted FDs after calling fork() can take a lot of time and delay the start of the child process. libvirt will now use an optimized algorithm that minimizes such delays. Bug fixes: - logging: Ensure virtlogd rollover takes priority over logrotate virtlogd implements its own rollover mechanism, but until now logrotate could end up acting on the logs before virtlogd had a chance to do so itself. Thanks everybody who helped with this release, be it with bug reports, patches, reviews, documenation, localization, etc ... Enjoy the release, 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/