mirror of
https://gitlab.com/libvirt/libvirt.git
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629 lines
22 KiB
XML
629 lines
22 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="v3.2.0" date="unreleased">
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<section title="New features">
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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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qemu: Detect host CPU model by asking QEMU on x86_64
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</summary>
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<description>
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Previously, libvirt detected the host CPU model using CPUID
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instruction, which caused libvirt to detect a lot of CPU features
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that are not supported by QEMU/KVM. Asking QEMU makes sure we
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don't start it with unsupported features.
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</description>
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</change>
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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 cpu clock time, task clock time,
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page faults, context switches, cpu migrations, minor page faults,
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major page faults, alignment faults, emulation faults by
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applications running on the platform.
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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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</section>
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</release>
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<release version="v3.1.0" date="2017-03-03">
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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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<change>
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<summary>
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qemu: Add support for memory backing with file source
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</summary>
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<description>
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Add support in numa topology for file source inside memory backing
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(hugepages are not needed) Three new elements
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<source/>,<access/> and <allocation/> were added
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to <memoryBacking/> element. Also new configuration parameter
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<code>memory_backing_dir</code> was added to qemu.conf.
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</description>
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</change>
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<change>
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<summary>
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network: make openvswitch call timeout configurable
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</summary>
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<description>
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Adding the ability to specify the timeout value in seconds for
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openvswitch calls in the libvirtd configuration file.
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</description>
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</change>
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<change>
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<summary>
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bhyve: add e1000 NIC support
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</summary>
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<description>
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Add support for e1000 NIC. Previously, the only available option
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was <code>virtio-net</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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libxl: add tunneled migration support
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</summary>
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<description>
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Add tunneled migration to libxl driver, which is always capable of
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strong encryption and doesn't require any extra network connection
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other than what's required for remote access of libvirtd.
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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 rendernode argument
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</summary>
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<description>
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Add a new attribute 'rendernode' to <gl> spice element.
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</description>
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</change>
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<change>
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<summary>
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nodedev: add drm capability
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</summary>
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<description>
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Add a new 'drm' capability for Direct Rendering Manager (DRM)
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devices, providing device type information.
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</description>
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</change>
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<change>
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<summary>
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Add API for individual/specific vCPU hotplug
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</summary>
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<description>
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The new API allows selecting specific vCPUs to be added/removed from
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the VM. The existing APIs allowed only adding/removing from the end
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which did not play well with NUMA.
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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/> and <network>
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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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and network.
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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: improve support for <timer> configurations
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</summary>
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<description>
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Add support for multiple timers. Extend the tsc timer to
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support the emulate mode. Improve conversion of timer XML
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to/from xl.cfg.
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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: modularize the storage driver
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</summary>
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<description>
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Split up the storage driver backends into loadable modules so that
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binary distributions don't have to compromise on shipping the storage
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driver with all backends which may pull in too many dependencies.
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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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<change>
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<summary>
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bhyve: change address allocation schema for SATA disks
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</summary>
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<description>
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Previously, the bhyve driver assigned PCI addresses to SATA disks
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directly rather than assigning that to a controller and
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using SATA addresses for disks. It was implemented this way
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because bhyve has no notion of an explicit SATA controller.
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However, as this doesn't match libvirt's understanding of
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disk addresses, the bhyve driver was changed to follow
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the common schema and have PCI addresses for SATA controllers
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and SATA addresses for disks. If you're having issues
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because of this, it's recommended to edit the domain's XML
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and remove <address type='pci'> from the <disk>
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elements with <target bus='sata'/> and let libvirt
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regenerate it 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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libxl: maximum memory fixes
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</summary>
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<description>
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Fix reporting of domain maximum memory. Fix setting dom0
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maximum memory.
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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: fix disk detach when <driver> not specified
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</summary>
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</change>
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<change>
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<summary>
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libxl: fix dom0 autoballooning with Xen 4.8
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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: Allow empty script path to <interface/>
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</summary>
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<description>
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Historically, this was always allowed. Unfortunately, due to some
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rework done for 1.3.2 release a bug was dragged in which suddenly
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stop allowing domain with such configuration to start.
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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>
|
|
<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>
|
|
<change>
|
|
<summary>
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conf: Reject domains with duplicate drive addresses
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</summary>
|
|
<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>
|
|
<change>
|
|
<summary>
|
|
libxl: reverse defaults on HVM net device attach
|
|
</summary>
|
|
<description>
|
|
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
|
|
default to the general working scenario.
|
|
</description>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
libxl: always enable pae for x86_64 HVM
|
|
</summary>
|
|
<description>
|
|
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
|
|
domain would be get an i686 environment. pae should always be enabled
|
|
for x86_64 HVM domains.
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|
</description>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
qemu: Fix XML dump of autogenerated websocket
|
|
</summary>
|
|
<description>
|
|
As a result autogenerated websocket port is regenerated on domain restore,
|
|
migration and such as it should be.
|
|
</description>
|
|
</change>
|
|
</section>
|
|
</release>
|
|
<release version="v2.5.0" date="2016-12-04">
|
|
<section title="New features">
|
|
<change>
|
|
<summary>
|
|
shmem: Add support for additional models
|
|
</summary>
|
|
<description>
|
|
The shmem device can now utilize QEMU's ivshmem-plain and
|
|
ivshmem-doorbell, more modern versions of ivshmem.
|
|
</description>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
vbox: Add VirtualBox 5.1 support
|
|
</summary>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
libssh: New transport
|
|
</summary>
|
|
<description>
|
|
The new libssh transport allows one to connect to a running
|
|
libvirtd via SSH, using the libssh library; for example:
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<tt>qemu+libssh://<i>server</i>/system</tt>.
|
|
</description>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
vhost-scsi: Add support scsi_host hostdev passthrough
|
|
</summary>
|
|
<description>
|
|
Add the capability to pass through a scsi_host HBA and the
|
|
associated LUNs to the guest.
|
|
</description>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
qemu: Users can now enable debug logging for native gluster
|
|
volumes in qemu using the "gluster_debug_level" option in qemu.conf
|
|
</summary>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
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
|
|
user configuration
|
|
</summary>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
qemu: Express devices will be placed on PCIe bus by default
|
|
</summary>
|
|
<description>
|
|
For machine types that use a PCI Express root bus
|
|
(e.g. x86_64/Q35 and aarch64/virt), any unaddressed PCI
|
|
device that is an Express device (all virtio-1.0 devices,
|
|
e1000e, nec-xhci, vfio assigned devices) will be placed on
|
|
an Express controller (i.e. a pcie-root-port) instead of a
|
|
legacy PCI controller (i.e. pci-bridge) with the root ports
|
|
added as needed.
|
|
</description>
|
|
</change>
|
|
</section>
|
|
<section title="Improvements">
|
|
<change>
|
|
<summary>
|
|
docs: Better documentation for migration APIs and flags
|
|
</summary>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
vbox: Address thread safety issues
|
|
</summary>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
virsh: Add support for passing an alternative persistent XML
|
|
to migrate command
|
|
</summary>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
vhostuser: Allow hotplug of multiqueue devices
|
|
</summary>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
NEWS: Switch to an improved format
|
|
</summary>
|
|
<description>
|
|
List user-visible changes instead of single commits for a better
|
|
high-level overview of differences between libvirt releases.
|
|
</description>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
website: Modernize layout and branding
|
|
</summary>
|
|
<description>
|
|
The libvirt website looked very cluttered and outdated; it has now
|
|
been completely overhauled, resulting in a design that's better
|
|
organized and more pleasant to look at.
|
|
</description>
|
|
</change>
|
|
</section>
|
|
<section title="Bug fixes">
|
|
<change>
|
|
<summary>
|
|
vz: Fix migration in P2P mode
|
|
</summary>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
Forbid newline character in names of some libvirt objects
|
|
</summary>
|
|
</change>
|
|
<change>
|
|
<summary>
|
|
Fix compilation on macOS
|
|
</summary>
|
|
</change>
|
|
</section>
|
|
</release>
|
|
</libvirt>
|