mirror of
https://gitlab.com/libvirt/libvirt.git
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461 lines
16 KiB
XML
461 lines
16 KiB
XML
<?xml version="1.0"?>
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<!-- libvirt release notes
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This file will be processed to produce both HTML and plain text versions
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of the release notes.
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Keep the style consistent with existing entries as much as possible:
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each change should be documented by a short, one-sentence summary
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and optionally a description where it's explained in more detail -->
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<libvirt>
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<release version="v3.1.0" date="unreleased">
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<section title="New features">
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<change>
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<summary>
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storage: Add Virtuozzo storage backend storage pool
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</summary>
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<description>
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Add new storage backend to support pool and volume management
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within the Virtuozzo Storage environment. Virtuozzo Storage is
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a highly available distributed software defined storage with
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built-in replication and disaster recovery.
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</description>
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</change>
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</section>
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<section title="Improvements">
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<change>
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<summary>
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virsh: pool-list: allow both --uuid and --name in one command
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</summary>
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<description>
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Adjust the virsh-pool command to support the --uuid and/or --name
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options in order to print just the --name and/or --uuid of pools.
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</description>
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</change>
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<change>
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<summary>
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Introduce MTU to domain <interface/>
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</summary>
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<description>
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Allow setting MTU size for some types of domain interface.
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</description>
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</change>
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</section>
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<section title="Bug fixes">
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<change>
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<summary>
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nodedev: Fabric name must not be required for fc_host capability
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</summary>
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<description>
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fabric_name is one of many fc_host attributes in Linux that is
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optional and left to the low-level driver to decide if it is
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implemented. For example the zfcp device driver does not provide a
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fabric name for an fcp host. The requirement for the existence of
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a fabric name has been removed by making it optional.
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</description>
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</change>
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</section>
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</release>
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<release version="v3.0.0" date="2017-01-17">
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<section title="New features">
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<change>
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<summary>
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Domain events for metadata content changes
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</summary>
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<description>
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The domain events framework has a new event ID that can
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be used to get notifications when domain metadata content
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changes.
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</description>
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</change>
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<change>
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<summary>
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Event notifications for the secret object
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</summary>
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<description>
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The secret object now supports event notifications, covering
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lifcycle changes and secret value changes.
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</description>
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</change>
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<change>
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<summary>
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New localPtr attribute for "ip" element in network XML
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</summary>
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</change>
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<change>
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<summary>
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qemu: Support QEMU group I/O throttling
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</summary>
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<description>
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Add the capability to allow group I/O throttling via a new
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domain <disk> <iotune> subelement "group_name"
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to allow sharing I/O throttling quota between multiple drives.
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</description>
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</change>
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<change>
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<summary>
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nss: Introduce <code>libvirt_guest</code>
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</summary>
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<description>
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New <code>libvirt_guest</code> nss module that translates libvirt
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guest names into IP addresses.
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</description>
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</change>
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<change>
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<summary>
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daemon: Add support for runtime logging settings adjustment
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</summary>
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<description>
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Logging-related settings like log outputs and filters can now be
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adjusted during runtime using the admin interface without the
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necessity of the daemon's restart.
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</description>
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</change>
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<change>
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<summary>
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storage: Add virStorageVolInfoFlags API
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</summary>
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<description>
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Add the API to support using the VIR_STORAGE_VOL_GET_PHYSICAL
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flag in order to return the host physical size in bytes
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of the image container in the allocation field of the
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_virStorageVolInfo structure. The --physical flag has been
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added to the virsh vol-info command to access the data.
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</description>
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</change>
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<change>
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<summary>
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libxl: Implement virDomainGetMaxVcpus API
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</summary>
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</change>
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<change>
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<summary>
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storage: Add overwrite flag checking for logical pool
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</summary>
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<description>
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Add support for the OVERWRITE flags for the logical storage
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backend including checking for existing data on the target
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volumes when building a new logical pool on target volume(s).
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</description>
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</change>
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<change>
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<summary>
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qemu: Add support for guest CPU configuration on s390(x)
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</summary>
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</change>
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</section>
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<section title="Improvements">
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<change>
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<summary>
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perf: Add more perf statistics
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</summary>
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<description>
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Add support to get the count of branch instructions
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executed, branch misses, bus cycles, stalled frontend
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cpu cycles, stalled backend cpu cycles, and ref cpu
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cycles by applications running on the platform.
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</description>
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</change>
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<change>
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<summary>
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conf: Display <physical> for volume xml
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</summary>
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<description>
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Add a display of the <physical> size of a disk
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volume in the output of the volume XML.
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</description>
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</change>
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<change>
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<summary>
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qemu: Use virtio-pci by default for aarch64 mach-virt guests
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</summary>
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<description>
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virtio-pci provides several advantages over virtio-mmio, such
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as the ability to hotplug devices and improved performance.
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While opting in to virtio-pci has been possible for a while,
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newly-defined guests will now use it automatically.
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</description>
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</change>
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<change>
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<summary>
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vbox: remove support for VirtualBox 3.x and older
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</summary>
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<description>
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Those old VirtualBox versions have been unsupported by
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upstream for a long time and the API of 4.0 and newer has
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diverged enough to require code abstractions to handle differences.
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Removing support for those old versions drops lots of code from
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the driver and simplifies the logic to ease implementation of new
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features going forward.
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</description>
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</change>
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<change>
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<summary>
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virsh: pool-info: introduce option --bytes
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</summary>
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<description>
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Add option --bytes to virsh pool-info in order ti allow display
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of units in bytes rather than default of human readable output.
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</description>
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</change>
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<change>
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<summary>
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scsi: Add parent wwnn/wwpn or fabric capability for createVport
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</summary>
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<description>
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Improve the algorithm searching for the parent scsi_host device
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for vHBA/NPIV scsi_host creation. Rather than supplying the
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"parent" by name, it's now possible to define the parent by
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it's wwnn/wwpn or fabric_wwn in the node device create XML or
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the storage pool XML.
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</description>
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</change>
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<change>
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<summary>
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qemu: aggregate pcie-root-ports onto multiple functions of a slot
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</summary>
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<description>
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When pcie-root-ports are added to pcie-root in order to
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provide a place to connect PCI Express endpoint devices,
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libvirt now aggregates multiple root ports together onto the
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same slot (up to 8 per slot) in order to conserve slots.
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Using this method, it's possible to connect more than 200
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endpoint devices to a guest that uses PCIe without requiring
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setup of any PCIe switches.
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</description>
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</change>
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</section>
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<section title="Bug fixes">
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<change>
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<summary>
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lxc: fix accidental killing of containers during libvirtd restart
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</summary>
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<description>
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The libvirt_lxc process was previously not moved into the
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container scope. As a result, if systemd reloads its config
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after a container is started, when libvirtd is later restarted
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it will accidentally kill the containers.
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</description>
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</change>
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<change>
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<summary>
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qemu: Correct GetBlockInfo values
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</summary>
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<description>
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For an active domain, correct the physical value provided for
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a raw sparse file backed storage and the allocation value provided
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for a qcow2 file backed storage that hasn't yet been opened on
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the domain.
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</description>
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</change>
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<change>
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<summary>
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qemu: Make virtio console usable on ppc64 guests
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</summary>
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<description>
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The chardev detection code has been improved and can now handle this
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configuration properly.
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</description>
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</change>
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<change>
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<summary>
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qemu: Enable mount namespace
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</summary>
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<description>
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To avoid funny races with udev relabelling devices under our hands and
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to enhance security, libvirt now spawns each qemu process with its own
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<code>/dev</code>.
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</description>
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</change>
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<change>
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<summary>
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storage: Fix implementation of no-overwrite for file system backend
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</summary>
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<description>
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Fix file system storage backend implementation of the OVERWRITE
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flags to be consistent between code and documentation. Add checks
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to ensure that when building a new file system on a target volume
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that there is not something already on the disk in a format that
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libvirt can recognize.
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</description>
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</change>
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<change>
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<summary>
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qemu: Create hugepage path on per domain basis
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</summary>
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<description>
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Historically, all hugepage enabled domains shared the same path under
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hugetlbfs. This left libvirt unable to correctly set security labels
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on it. With this release, however, each domain is put into a
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separate path which is also correctly labeled.
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</description>
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</change>
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<change>
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<summary>
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conf: Reject domains with duplicate drive addresses
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</summary>
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<description>
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Reject duplicate drive addresses for disks and hostdevs at
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domain definition.
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</description>
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</change>
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<change>
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<summary>
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libxl: reverse defaults on HVM net device attach
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</summary>
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<description>
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Fixes network interface attach for HVM domains when no model is
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specified. Emulated hotplug isn't yet supported and hence we should
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default to the general working scenario.
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</description>
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</change>
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<change>
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<summary>
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libxl: always enable pae for x86_64 HVM
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</summary>
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<description>
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By default pae is disabled in libxl. Without an explicit <pae/>
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setting in the domain <features> configuration, an x86_64 HVM
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domain would be get an i686 environment. pae should always be enabled
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for x86_64 HVM domains.
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</description>
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</change>
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<change>
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<summary>
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qemu: Fix XML dump of autogenerated websocket
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</summary>
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<description>
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As a result autogenerated websocket port is regenerated on domain restore,
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migration and such as it should be.
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</description>
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</change>
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</section>
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</release>
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<release version="v2.5.0" date="2016-12-04">
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<section title="New features">
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<change>
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<summary>
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shmem: Add support for additional models
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</summary>
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<description>
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The shmem device can now utilize QEMU's ivshmem-plain and
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ivshmem-doorbell, more modern versions of ivshmem.
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</description>
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</change>
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<change>
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<summary>
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vbox: Add VirtualBox 5.1 support
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</summary>
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</change>
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<change>
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<summary>
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libssh: New transport
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</summary>
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<description>
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The new libssh transport allows one to connect to a running
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libvirtd via SSH, using the libssh library; for example:
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<tt>qemu+libssh://<i>server</i>/system</tt>.
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</description>
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</change>
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<change>
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<summary>
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vhost-scsi: Add support scsi_host hostdev passthrough
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</summary>
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<description>
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Add the capability to pass through a scsi_host HBA and the
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associated LUNs to the guest.
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</description>
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</change>
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<change>
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<summary>
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qemu: Users can now enable debug logging for native gluster
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volumes in qemu using the "gluster_debug_level" option in qemu.conf
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</summary>
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</change>
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<change>
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<summary>
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memory hotplug: Slot numbers for memory devices are now
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automatically allocated and thus persistent. In addition slot numbers
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can be specified without providing a base address, which simplifies
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user configuration
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</summary>
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</change>
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<change>
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<summary>
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qemu: Express devices will be placed on PCIe bus by default
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</summary>
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<description>
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For machine types that use a PCI Express root bus
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(e.g. x86_64/Q35 and aarch64/virt), any unaddressed PCI
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device that is an Express device (all virtio-1.0 devices,
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e1000e, nec-xhci, vfio assigned devices) will be placed on
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an Express controller (i.e. a pcie-root-port) instead of a
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legacy PCI controller (i.e. pci-bridge) with the root ports
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added as needed.
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</description>
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</change>
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</section>
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<section title="Improvements">
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<change>
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<summary>
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docs: Better documentation for migration APIs and flags
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</summary>
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</change>
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<change>
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<summary>
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vbox: Address thread safety issues
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</summary>
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</change>
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<change>
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<summary>
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virsh: Add support for passing an alternative persistent XML
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to migrate command
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</summary>
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</change>
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<change>
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<summary>
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vhostuser: Allow hotplug of multiqueue devices
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</summary>
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</change>
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<change>
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<summary>
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NEWS: Switch to an improved format
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</summary>
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<description>
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List user-visible changes instead of single commits for a better
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high-level overview of differences between libvirt releases.
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</description>
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</change>
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<change>
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<summary>
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website: Modernize layout and branding
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</summary>
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<description>
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The libvirt website looked very cluttered and outdated; it has now
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been completely overhauled, resulting in a design that's better
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organized and more pleasant to look at.
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</description>
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</change>
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</section>
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<section title="Bug fixes">
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<change>
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<summary>
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vz: Fix migration in P2P mode
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</summary>
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</change>
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<change>
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<summary>
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Forbid newline character in names of some libvirt objects
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</summary>
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</change>
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<change>
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<summary>
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Fix compilation on macOS
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</summary>
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</change>
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</section>
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</release>
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</libvirt>
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