- Announce - libvirt List Archives

Entering freeze for libvirt-7.1.0
by Jiri Denemark 25 Feb '21

25 Feb '21

I have just tagged v7.1.0-rc1 in the repository and pushed signed tarballs and source RPMs to https://libvirt.org/sources/ Please give the release candidate some testing and in case you find a serious issue which should have a fix in the upcoming release, feel free to reply to this thread to make sure the issue is more visible. If you have not done so yet, please update NEWS.rst to document any significant change you made since the last release. Thanks, Jirka

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ANNOUNCE: libvirt-glib version 4.0.0 released
by Daniel P. Berrangé 15 Feb '21

15 Feb '21

A new release of libvirt-glib, version 4.0.0, is now available from: https://libvirt.org/sources/glib/libvirt-glib-4.0.0.tar.xz The tarball is signed with Key fingerprint: DAF3 A6FD B26B 6291 2D0E 8E3F BE86 EBB4 1510 4FDF (4096R) Changed in this release: - Replace autotools build system with meson - Mandate libvirt >= 1.2.8 - Mandate libxml2 >= 2.9.1 - Mandate glib >= 2.48.0 - Mandate gobject-introspection >= 1.46.0 - Fix docs incompatibility with gtk-doc >= 1.30 - Updated translations - Misc API docs fixes - Add constants related to NVRAM during domain delete - Add domain config API for controller ports attribute - Fix compat with newer glib by avoid volatile for enum types Thanks to all who contributed to this release. 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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Release of libvirt-7.0.0
by Jiri Denemark 15 Jan '21

15 Jan '21

The 7.0.0 release of both libvirt and libvirt-python is tagged and signed tarballs and source RPMs are available at https://libvirt.org/sources/ https://libvirt.org/sources/python/ Thanks everybody who helped with this release by sending patches, reviewing, testing, or providing any other feedback. Your work is greatly appreciated. * Project governance * Formal handover of release tarball signing Starting from libvirt-6.6 the release tarballs are signed by Jiří Denemark. Releases starting with 7.0 contain a note from the previous maintainer Daniel Veillard offically handing over the signing of packages so that the transition can be verified. * New features * nodedev: Add node device driver support for AP devices Add support for detecting and listing Adjunct Processor(AP) cards, AP queues and AP matrix devices (which are capable of MDEV) of a KVM host system in libvirt node device driver with correct object relationships. * qemu: Allow control of ``qcow2`` metadata cache In specific usecases such as when massive storage images are used it's possible to achieve better performance by increasing the metadata cache size. The new knob allows advanced users setting the size according to qemu's documentation to suit their image. * conf: Add support for keeping TPM emulator state Currently, swtpm TPM state file is removed when a transient domain is powered off or undefined. Add per-TPM emulator option ``persistent_state`` for keeping TPM state. * Improvements * qemu: Discourage users from polling ``virDomainGetBlockJobInfo`` for block job completion Document that waiting for events is a more robust solution. * secret: Relax XML schema for the ``usage`` name of a ``secret`` Various bits of documentation of how to use libvirt with RBD volumes used an usage name which would not pass the XML validation. Relax the requirement to make such XMLs valid. * virnetdevopenvswitch: Various improvements The code that handles ``<interface type='vhostuser'/>`` was given various improvements. So far, libvirt assumed vhostuser interfaces are handled exclusively by OpenVSwitch and refused to start a guest if it was not so. Now a guest can be started successfully even if the interface is created by some other tool (e.g. ``dpdk-testpmd``). Also, the code that detects the interface name was adapted to new versions of OpenVSwitch and thus can detect name more reliably. * qemu: Report guest disks informations in ``virDomainGetGuestInfo`` Libvirt is now able to report disks and filesystems from the guest's perspective (using guest agent). And with sufficiently new guest agent (5.3.0 or newer) the API also handles disks on CCW bus. * Bug fixes * qemu: Fix logic bug in inactive snapshot deletion This release fixes a bug introduced in libvirt-6.9 where libvirt's snapshot metadata would not be deleted on successful snapshot deletion. * qemu: Fix VMs with ``<iotune>`` on an empty cdrom Specifying ``<iotune>`` for an empty cdrom would prevent the VM from starting as qemu doesn't accept the tuning for an empty drive. We now postpone setting the parameters until a new media is inserted. * Avoid taking extra host memory when launching pSeries guests Under certain conditions, pSeries guests were being launched with more RAM than it was specified in the domain XML by the user. New pSeries domains created with libvirt 7.0.0 will always launch with the right amount of initial memory. Existing guests that migrate from an older libvirt version to 7.0.0 will not be affected by this change. * qemu: Don't cache NUMA caps ``virsh capabilities`` contains ``<topology/>`` section which reports NUMA topology among with amount of free hugepages per each NUMA node. However, these amounts were not updated between calls. * networkGetDHCPLeases: Handle leases with infinite expiry time Since libvirt-6.3.0 it is possible to configure expiry time for DHCP leases. If the expiry time was infinite then ``virsh net-dhcp-leases`` and NSS plugins refused to work. * qemu: Don't prealloc mem for real NVDIMMs If a real life NVDIMM is assigned to a guest via ``<memory model='nvdimm'/>`` then QEMU is no longer instructed to preallocate memory for it. This prevents unnecessary wear on the NVDIMM. * network: Introduce mutex for bridge name generation When new libvirt network is defined or created and the input XML does not contain any bridge name, libvirt generates one. However, it might have happened that the same name would be generated for different networks if two or more networks were defined/created at once. Enjoy. Jirka

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Entering freeze for libvirt-7.0.0
by Jiri Denemark 13 Jan '21

13 Jan '21

I have just tagged v$version-$rc in the repository and pushed signed tarballs to https://libvirt.org/sources/. The source RPM is missing because it is broken for some reason, I will investigate, fix it and upload later. Please give the release candidate some testing and in case you find a serious issue which should have a fix in the upcoming release, feel free to reply to this thread to make sure the issue is more visible. If you have not done so yet, please update NEWS.rst to document any significant change you made since the last release. Thanks, Jirka

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Release of libvirt-6.10.0
by Jiri Denemark 01 Dec '20

01 Dec '20

The 6.10.0 release of both libvirt and libvirt-python is tagged and signed tarballs and source RPMs are available at https://libvirt.org/sources/ https://libvirt.org/sources/python/ Thanks everybody who helped with this release by sending patches, reviewing, testing, or providing any other feedback. Your work is greatly appreciated. * Security * qemu: Enable client TLS certificate validation by default for ``chardev``, ``migration``, and ``backup`` servers. The default value if qemu.conf options ``chardev_tls_x509_verify``, ``migrate_tls_x509_verify``, or ``backup_tls_x509_verify`` are not specified explicitly in the config file and also the ``default_tls_x509_verify`` config option is missing are now '1'. This ensures that only legitimate clients access servers, which don't have any additional form of authentication. * New features * qemu: Implement OpenSSH authorized key file management APIs New APIs (``virDomainAuthorizedSSHKeysGet()`` and ``virDomainAuthorizedSSHKeysSet()``) and virsh commands (``get-user-sshkeys`` and ``set-user-sshkeys``) are added to manage authorized_keys SSH file for user. * hyperv: implement new APIs The ``virDomainGetMaxMemory()``, ``virDomainSetMaxMemory()``, ``virDomainGetSchedulerType()``, ``virDomainGetSchedulerParameters()``, ``virDomainGetSchedulerParametersFlags()``, ``virDomainGetVcpus()``, ``virDomainGetVcpusFlags()``, ``virDomainGetMaxVcpus()``, ``virDomainSetVcpus()``, and ``virDomainSetVcpusFlags()`` APIs have been implemented in the Hyper-V driver. * Improvements * virsh: Support network disks in ``virsh attach-disk`` The ``virsh attach-disk`` helper command which simplifies attaching of disks without the need for the user to formulate the disk XML manually now supports network-backed images. Users can specify the protocol and host specification with new command line arguments. Please refer to the man page of virsh for further information. * Bug fixes * remote: fixed performance regression in SSH tunnelling The ``virt-ssh-helper`` binary introduced in 6.8.0 had very poor scalability which impacted libvirt tunnelled migration and storage volume upload/download in particular. It has been updated and now has performance on par with netcat. * Removed features * hyperv: removed support for the Hyper-V V1 WMI API This drops support for Windows Server 2008R2 and 2012. The earliest supported version is now Windows 2012R2. Enjoy. Jirka

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Entering freeze for libvirt-6.10.0
by Jiri Denemark 27 Nov '20

27 Nov '20

I have just tagged v6.10.0-rc1 in the repository and pushed signed tarballs and source RPMs to https://libvirt.org/sources/ Please give the release candidate some testing and in case you find a serious issue which should have a fix in the upcoming release, feel free to reply to this thread to make sure the issue is more visible. If you have not done so yet, please update NEWS.rst to document any significant change you made since the last release. Thanks, Jirka

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Release of libvirt-6.9.0
by Jiri Denemark 02 Nov '20

02 Nov '20

The 6.9.0 release of both libvirt and libvirt-python is tagged and signed tarballs and source RPMs are available at https://libvirt.org/sources/ https://libvirt.org/sources/python/ Thanks everybody who helped with this release by sending patches, reviewing, testing, or providing any other feedback. Your work is greatly appreciated. * New features * nodedev: Add support for channel subsystem (CSS) devices on S390 A CSS device is represented as a parent device of a CCW device. This support allows to create vfio-ccw mediated devices with ``virNodeDeviceCreateXML()``. * qemu: Implement memory failure event New event is implemented that is emitted whenever a guest encounters a memory failure. * qemu: Implement support for ``<transient/>`` disks VMs based on the QEMU hypervisor now can use ``<transient/>`` option for local file-backed disks to configure a disk which discards changes made to it while the VM was active. * hyperv: implement new APIs The ``virConnectGetCapabilities()``, ``virConnectGetMaxVcpus()``, ``virConnectGetVersion()``, ``virDomainGetAutostart()``, ``virDomainSetAutostart()``, ``virNodeGetFreeMemory()``, ``virDomainReboot()``, ``virDomainReset()``, ``virDomainShutdown()``, and ``virDomainShutdownFlags()`` APIs have been implemented in the Hyper-V driver. * bhyve: implement virtio-9p filesystem support Implement virito-9p shared filesystem using the ``<filesystem/>`` element. * qemu: Add support for vDPA network devices. VMs using the QEMU hypervisor can now specify vDPA network devices using ``<interface type='vdpa'>``. The node device APIs also now list and provide XML descriptions for vDPA devices. * Improvements * Bug fixes * hyperv: ensure WQL queries work in all locales Relying on the "Description" field caused queries to fail on non-"en-US" systems. The queries have been updated to avoid using localized strings. * rpc: Fix ``virt-ssh-helper`` detection libvirt 6.8.0 failed to correctly detect the availability of the new ``virt-ssh-helper`` command on the remote host, and thus always used the fallback instead; this has now been fixed. Enjoy. Jirka

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Entering freeze for libvirt-6.9.0
by Jiri Denemark 29 Oct '20

29 Oct '20

I have just tagged v6.9.0-rc1 in the repository and pushed signed tarballs and source RPMs to https://libvirt.org/sources/ Please give the release candidate some testing and in case you find a serious issue which should have a fix in the upcoming release, feel free to reply to this thread to make sure the issue is more visible. If you have not done so yet, please update NEWS.rst to document any significant change you made since the last release. Thanks, Jirka

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Release of libvirt-6.8.0
by Jiri Denemark 01 Oct '20

01 Oct '20

The 6.8.0 release of both libvirt and libvirt-python is tagged and signed tarballs and source RPMs are available at https://libvirt.org/sources/ https://libvirt.org/sources/python/ Thanks everybody who helped with this release by sending patches, reviewing, testing, or providing any other feedback. Your work is greatly appreciated. * New features * xen: Add ``writeFiltering`` attribute for PCI devices By default Xen filters guest writes to the PCI configuration space of a PCI hostdev, which may cause problems for some devices. The ``writeFiltering`` attribute of the device's ``<source>`` element can be used to disable the filtering and allow all guest writes to the configuration space. * bhyve: Support setting the framebuffer resolution Libvirt can now set the framebuffer's "w" and "h" parameters using the ``resolution`` element. * bhyve: Support VNC password authentication Libvirt can now probe whether the bhyve binary supports VNC password authentication. In case it does, a VNC password can now be passed using the ``passwd`` attribute on the ``<graphics>`` element. * remote: ``virt-ssh-helper`` replaces ``nc`` for SSH tunnelling Libvirt now provides a ``virt-ssh-helper`` binary on the server side. The libvirt remote client will use this binary for setting up an SSH tunnelled connection to hosts. If not present, it will transparently fallback to the traditional ``nc`` tunnel. The new binary makes it possible for libvirt to transparently connect across hosts even if libvirt is built with a different installation prefix on the client vs server. It also enables remote access to the unprivileged per-user libvirt daemons (e.g. using a URI such as ``qemu+ssh://hostname/session``). The only requirement is that ``virt-ssh-helper`` is present in ``$PATH`` of the remote host. * esx: implement few APIs The ``virConnectListAllNetworks()``, ``virDomainGetHostname()``, and ``virDomainInterfaceAddresses()`` (only for ``VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_AGENT`` source) APIs were implemented in the esx driver. * Improvements * qemu: Allow migration over UNIX sockets QEMU migration can now be performed completely over UNIX sockets. This is useful for containerised scenarios and can be used in both peer2peer and direct migrations. * dbus: Use GLib implementation instead of libdbus Adopting GLib DBus implementation simplifies our code as libdbus provides low-level APIs where we had to have a lot of helper functions. With this change we also remove dependency on libdbus and possibly fix all the DBus related libvirtd crashes seen over the time. * Re-introduce NVDIMM auto-alignment for pSeries Guests The auto-alignment logic was removed in v6.7.0 in favor of requiring the size provided by the user to be already aligned; however, this had the unintended consequence of breaking some existing guests. v6.8.0 restores the previous behavior with an improvement: it also reflects the auto-aligned value in the domain XML. * qemu: Preserve qcow2 cluster size after external snapshots The new overlay image which is installed on top of the current chain when taking an external snapshot now preserves the cluser size of the original top image to preserve any performance tuning done on the original image. * Bug fixes * qemu: Various (i)SCSI backed hostdev fixes (i)SCSI backed hostdevs now work again with an arbitrarily long user-specified device alias and also honor the 'readonly' property after a recent rewrite. * Removed features * node_device: Remove HAL node device backend HAL is deprecated on all supported OS so there is no need to keep it in libvirt. udev backend is used on Linux OSes and devd can be eventually implemented as replacement for FreeBSD. Enjoy. Jirka

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Entering freeze for libvirt-6.8.0
by Jiri Denemark 29 Sep '20

29 Sep '20

I have just tagged v6.8.0-rc1 in the repository and pushed signed tarballs and source RPMs to https://libvirt.org/sources/ Please give the release candidate some testing and in case you find a serious issue which should have a fix in the upcoming release, feel free to reply to this thread to make sure the issue is more visible. If you have not done so yet, please update NEWS.rst to document any significant change you made since the last release. Thanks, Jirka

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