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[Libvirt-announce] Entering freeze for libvirt 5.10.0
by Daniel Veillard 28 Nov '19

28 Nov '19

As planned this is now tagged in git head and signed source tarball and rpm are available at the usual place: https://libvirt.org/sources/ there is a few weirdness on CI, some apparently related to freebsd, others to python and go bindings, worth having a look, some are broken for a while now. Otherwise this passes my very minimal testing, but don't rely on this ! I plan on making a RC2 for Thanksgiving, and if everything looks fine push the final release next Monday. Please make sure we have the docs in the news file :-) thanks ! 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/

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[Libvirt-announce] ANNOUNCE: libvirt-glib release 3.0.0
by Daniel P. Berrangé 26 Nov '19

26 Nov '19

I am pleased to announce that a new release of the libvirt-glib package, version 3.0.0, is now available from https://libvirt.org/sources/glib/ The packages are GPG signed with Key fingerprint: DAF3 A6FD B26B 6291 2D0E 8E3F BE86 EBB4 1510 4FDF (4096R) Changes in this release: * Add support for bochs video device * Add API to query firmware config * Improve testing coverage * Validate min/max glib API versions in use * Remove deprecated G_PARAM_PRIVATE * Fix docs build linking problems * Convert python demos to be python 3 compatible & use modern best practice for pyobject introspection bindings * Add API to query domain capaibilities * Refresh translations * Simplify build process for handling translations * Fix some memory leaks * Add API for setting storage volume features Thanks to everyone who contributed to this new release through testing, patches, bug reports, translations and more. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|

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[Libvirt-announce] Availability of libvirt 5.9.0
by Daniel Veillard 06 Nov '19

06 Nov '19

With a bit of delay I finally made the release today, it's available as signed tarball and source rpms from the usual place: https://libvirt.org/sources/ I also pushed a python release which is virtually identical to 5.8.0 one but you can find it at https://libvirt.org/sources/python/ You can start to see in this release some of the long term changes which were raised last month: Packaging changes - Start linking against GLib and using its features Up until now, libvirt has been dealing with platform portability and the lack of certain features in libc by using gnulib and implementing its own functions and data structures respectively; going forward, it will prefer the facilities offered by GLib instead. - Stop distributing generated documentation Most downstreams already patch the libvirt source to some extent, so this change will probably not affect them. - Rewrite several Perl scripts in Python Phasing out Perl usage is part of the project strategy. New features - qemu: Introduce a new video model of type 'ramfb' Introduce a new video model type to the domain XML that supports the ramfb standalone device in qemu. - qemu: Implement the ccf-assist pSeries feature Users can now decide whether ccf-assist (Count Cache Flush Assist) support should be available to pSeries guests. - Xen: Support specifying ACPI firmware path The libxl driver now supports specifying an ACPI firmware path using the acpi element. - qemu: Support specifying resolution for video devices Removed features - logging: Drop support for including stack traces This feature was intended to aid debugging, but in practice it resulted in logs that were too verbose to be useful and also resulted in a significant performance penalty. Improvements - qemu: Implement CPU comparison/baseline on s390x This functionality has been historically limited to x86_64, but it's now available on s390x too. Bug fixes - lib: autostart objects exactly once If libvirtd or any of the sub-daemons is started with socket activation then objects might be autostarted more than once. For instance, if a domain under qemu:///session URI is mark as autostarted and the session daemon is started then the domain is started with it. If user shuts the domain down and the session daemon is started again, the user's wish to keep the domain shut off is ignored and the domain is autostarted again. This is now fixed. - qemu: Properly advertise bochs-display availability Support for bochs-display was introduced in libvirt 5.6.0, but until now the model was not listed in the domain capabilities. - security: Don't remember labels for TPM devices Due to the way they're implemented in the kernel, trying to remember labels for TPM devices makes it impossible to use them. - security: Properly rollback after failure in a stacked driver When multiple security drivers are involved, failure in one of them would result in only the corresponding changes being rolled back, leaving the ones performed by drivers that had been activated earlier in place. All changes are rolled back now. - Fix build with musl libc - Improve compatibility with non-bash shells thanks everybody who helped with this release, next in a month ! 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/

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[Libvirt-announce] Entering freeze for libvirt 5.9.0
by Daniel Veillard 31 Oct '19

31 Oct '19

We are getting close to the end of the month, a lot of developers are at KVM Forum in Lyon, so starting the release process now looks a good idea. I have tagged the RC1 in git and pushed signed tarball and source rpm to the usual place: https://libvirt.org/sources/ Seems to work in my limited testing, the Ci is almost all green https://ci.centos.org/view/libvirt/ so things looks good in my perspective. Please give it a try, I will try to push RC2 on Wednesday, and based on feedback roll the release on Friday or during the week-end, 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/

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[Libvirt-announce] Release of libvirt-5.8.0
by Daniel Veillard 05 Oct '19

05 Oct '19

So it's out, a bit late but better than never, without release notes but after all everything is described in the commits, so here is a very raw 5.8.0 release, it's tagged in git and signed sources and tarball are available at the usual place: https://libvirt.org/sources/ I also made python binding release that you can find at: https://libvirt.org/sources/python So the only thing listed in the release notes is Removed features: - Remove xenapi driver The xenapi driver is removed since it has not received any significant development since its initial contribution nine years ago and has no known user base. Glancing at the commit list, there is a lot of refactoring going on which I assume don't have any visible user impact. I would suggest users look at the new development strategy document, https://libvirt.org/strategy.html TBH since I started the project 14 or so years ago the core assumption have been kept, but this indicates willingness to change some of the directions by the current group of developers, one of the key point is articulated there: "There is thus a desire to make use of either Rust or Go, or a combination of both, to incrementally replace existing use of C, and also for greenfield development." So if anybody mourns the absence of the release note for 5.8.0, I suggest to instead takes the couple of minutes it takes to read the above page, that will be well invested time ! 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/

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[Libvirt-announce] Entering freeze for libvirt-5.8.0
by Daniel Veillard 03 Oct '19

03 Oct '19

per previous mail, apologies, I totally forgot. It's tagged in git, I have pushed RC1 signed tarball and source rpm to the usual place at: https://libvirt.org/sources/ I will reckon my testing was even more minimal than usual, I will just say it built for me ! https://ci.centos.org/view/libvirt/ is green with a small exception, so apparently it's not too broken, but please give it a try ! I will push rc2 on Thursday, and if everything is fine will do the release on Saturday, a bit late but hopefully not a big deal ! thanks, 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/

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[Libvirt-announce] Release of libvirt 5.7.0
by Daniel Veillard 03 Sep '19

03 Sep '19

A few hours ago I tagged the release in git and pushed the signed tarball and source rpm to the usual place: https://libvirt.org/sources/ I also tagged a release of the python bindings which you can find at https://libvirt.org/sources/python/ This is a balanced release with new features, improvements and bug fixes, also note some deprecation for KVM assignment support and for build with older versions of libxml2. New features: - qemu: Support Direct Mode for Hyper-V Synthetic timers The QEMU driver now supports Direct Mode for Hyper-V Synthetic timers for Hyper-V guests. - lib: Add virDomainGetGuestInfo() This API is intended to aggregate several guest agent information queries and is inspired by stats API virDomainListGetStats(). It is anticipated that this information will be provided by a guest agent running within the domain. It's exposed as virsh guestinfo. - Split libvirtd into separate daemons The big monolithic libvirtd daemon can now be replaced by smaller per-driver daemons. Distributions can chose if they want the former or the latter. The libvirtd is still kept around for backwards compatibility. Removed features: - Remove KVM assignment support The KVM style of PCI device assignment was removed from the kernel in version 4.12.0 after being deprecated since 4.2.0. Libvirt defaults to VFIO for a long time. Remove support for KVM device assignment from libvirt too. - libxml: min required libxml is now 2.9.1 Support for building with libxml versions older than 2.9.1 has been dropped. Improvements: - virsh: Support setting bandwidth in migrate subcommand In addition to postcopy bandwidth, the virsh migrate subcommand now supports specifying precopy bandwidth with the --bandwidth parameter. - libxl: Implement domain metadata getter/setter The libxl driver now supports virDomainGetMetadata() and virDomainSetMetadata() APIs. - test driver: Expand API coverage Additional APIs have been implemented in the test driver. - Report RNG device in domain capabilities XML Libvirt now reports if RNG devices are supported by the underlying hypervisor in the domain capabilities XML. - Stop linking virt-login-shell and NSS plugins with libvirt.so In order to allow libvirt to abort on out of memory, we need to stop linking libvirt.so to virt-login-shell or the NSS plugins where we don't want to abort. This change also resulted in smaller binaries and libraries. - qemu: Allow migration with disk cache on When QEMU supports flushing caches at the end of migration, we can safely allow migration even if disk/driver/@cache is neither none nor directsync. Bug fixes: - Various security label remembering fixes In the previous release libvirt introduced remembering of original owners and SELinux labels on files. However, the feature did not work properly with snapshots, on migrations or on network filesystems. This is now fixed. - Allow greater PCI domain numbers Libvirt used to require PCI domain number to be not greater than 0xFFFF. The code was changed to allow 32 bits long numbers. - Various D-Bus fixes When D-Bus is not available, libvirt was reporting random errors. These are now gone. - Prefer read-only opening of PCI config files When enumerating PCI bus, libvirt opens config files under sysfs mount and parses them to learn various aspects of the device (e.g. its capabilities). Only in a very limited number of cases it is actually writing into the file. However, it used to open the file also for writing even if it was only reading from it. - Fix AppArmor profile Since the 5.6.0 release, libvirt uses procfs to learn the list of opened file descriptors when spawning a command. However, our AppArmor profile was not allowing such access. - Don't block storage driver when starting or building a pool Starting or building a storage pool can take a long time to finish. During this time the storage driver was blocked and thus no other API involving the storage driver could run. This is now fixed. Thanks everybody who helped for this release, be it with patches, reviews, bug reports, docs, 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/

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[Libvirt-announce] Entering freeze for libvirt 5.7.0
by Daniel Veillard 01 Sep '19

01 Sep '19

I'm a day late but I just tagged it in git and pushed signed tarball and source rpm to the usual place: https://libvirt.org/sources/ Seems to work fine in my very minimal testing, there is a few red spots in CI https://ci.centos.org/view/libvirt/ but they seems mostly related to Debian 10 testing so maybe there was a hiccup on that arch in CI... I guess I will push RC2 over the week-end, and if things are fine push the final 5.7.0 release next Tuesday, in the meantime, please give it some testing, thanks, 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/

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[Libvirt-announce] Release of libvirt-5.6.0
by Daniel Veillard 05 Aug '19

05 Aug '19

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/

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[Libvirt-announce] Entering freeze for libvirt 5.6.0
by Daniel Veillard 02 Aug '19

02 Aug '19

I completely forgot to send plans for this and already a bit late for release schedule, so I just tagged RC1 in git and pushed the signed tarball and source rpm to the usual place: https://libvirt.org/sources/ Seems okay in my very limited tests here, there is a few red tests on jenkins but nothing looking like core libvirt issues https://ci.centos.org/view/libvirt/ I will try to cut RC2 once I'm back in Europe Thursday, and then get the final release by the w.e. or Monday. In the meantime, please give it some testing ! thanks, 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/

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