mirror of
https://github.com/qemu/qemu.git
synced 2024-11-28 14:24:02 +08:00
9e272073e1
Since commit a937b6aa73 (qapi: Reformat doc comments to conform to
current conventions), a number of comments not conforming to the
current formatting conventions were added. No problem, just sweep
the entire documentation once more.
To check the generated documentation does not change, I compared the
generated HTML before and after this commit with "wdiff -3". Finds no
differences. Comparing with diff is not useful, as the reflown
paragraphs are visible there.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20230720071610.1096458-7-armbru@redhat.com>
6055 lines
181 KiB
Python
6055 lines
181 KiB
Python
# -*- Mode: Python -*-
|
|
# vim: filetype=python
|
|
|
|
##
|
|
# == Block core (VM unrelated)
|
|
##
|
|
|
|
{ 'include': 'common.json' }
|
|
{ 'include': 'crypto.json' }
|
|
{ 'include': 'job.json' }
|
|
{ 'include': 'sockets.json' }
|
|
|
|
##
|
|
# @SnapshotInfo:
|
|
#
|
|
# @id: unique snapshot id
|
|
#
|
|
# @name: user chosen name
|
|
#
|
|
# @vm-state-size: size of the VM state
|
|
#
|
|
# @date-sec: UTC date of the snapshot in seconds
|
|
#
|
|
# @date-nsec: fractional part in nano seconds to be used with date-sec
|
|
#
|
|
# @vm-clock-sec: VM clock relative to boot in seconds
|
|
#
|
|
# @vm-clock-nsec: fractional part in nano seconds to be used with
|
|
# vm-clock-sec
|
|
#
|
|
# @icount: Current instruction count. Appears when execution
|
|
# record/replay is enabled. Used for "time-traveling" to match
|
|
# the moment in the recorded execution with the snapshots. This
|
|
# counter may be obtained through @query-replay command (since
|
|
# 5.2)
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'struct': 'SnapshotInfo',
|
|
'data': { 'id': 'str', 'name': 'str', 'vm-state-size': 'int',
|
|
'date-sec': 'int', 'date-nsec': 'int',
|
|
'vm-clock-sec': 'int', 'vm-clock-nsec': 'int',
|
|
'*icount': 'int' } }
|
|
|
|
##
|
|
# @ImageInfoSpecificQCow2EncryptionBase:
|
|
#
|
|
# @format: The encryption format
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'struct': 'ImageInfoSpecificQCow2EncryptionBase',
|
|
'data': { 'format': 'BlockdevQcow2EncryptionFormat'}}
|
|
|
|
##
|
|
# @ImageInfoSpecificQCow2Encryption:
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'union': 'ImageInfoSpecificQCow2Encryption',
|
|
'base': 'ImageInfoSpecificQCow2EncryptionBase',
|
|
'discriminator': 'format',
|
|
'data': { 'luks': 'QCryptoBlockInfoLUKS' } }
|
|
|
|
##
|
|
# @ImageInfoSpecificQCow2:
|
|
#
|
|
# @compat: compatibility level
|
|
#
|
|
# @data-file: the filename of the external data file that is stored in
|
|
# the image and used as a default for opening the image
|
|
# (since: 4.0)
|
|
#
|
|
# @data-file-raw: True if the external data file must stay valid as a
|
|
# standalone (read-only) raw image without looking at qcow2
|
|
# metadata (since: 4.0)
|
|
#
|
|
# @extended-l2: true if the image has extended L2 entries; only valid
|
|
# for compat >= 1.1 (since 5.2)
|
|
#
|
|
# @lazy-refcounts: on or off; only valid for compat >= 1.1
|
|
#
|
|
# @corrupt: true if the image has been marked corrupt; only valid for
|
|
# compat >= 1.1 (since 2.2)
|
|
#
|
|
# @refcount-bits: width of a refcount entry in bits (since 2.3)
|
|
#
|
|
# @encrypt: details about encryption parameters; only set if image is
|
|
# encrypted (since 2.10)
|
|
#
|
|
# @bitmaps: A list of qcow2 bitmap details (since 4.0)
|
|
#
|
|
# @compression-type: the image cluster compression method (since 5.1)
|
|
#
|
|
# Since: 1.7
|
|
##
|
|
{ 'struct': 'ImageInfoSpecificQCow2',
|
|
'data': {
|
|
'compat': 'str',
|
|
'*data-file': 'str',
|
|
'*data-file-raw': 'bool',
|
|
'*extended-l2': 'bool',
|
|
'*lazy-refcounts': 'bool',
|
|
'*corrupt': 'bool',
|
|
'refcount-bits': 'int',
|
|
'*encrypt': 'ImageInfoSpecificQCow2Encryption',
|
|
'*bitmaps': ['Qcow2BitmapInfo'],
|
|
'compression-type': 'Qcow2CompressionType'
|
|
} }
|
|
|
|
##
|
|
# @ImageInfoSpecificVmdk:
|
|
#
|
|
# @create-type: The create type of VMDK image
|
|
#
|
|
# @cid: Content id of image
|
|
#
|
|
# @parent-cid: Parent VMDK image's cid
|
|
#
|
|
# @extents: List of extent files
|
|
#
|
|
# Since: 1.7
|
|
##
|
|
{ 'struct': 'ImageInfoSpecificVmdk',
|
|
'data': {
|
|
'create-type': 'str',
|
|
'cid': 'int',
|
|
'parent-cid': 'int',
|
|
'extents': ['VmdkExtentInfo']
|
|
} }
|
|
|
|
##
|
|
# @VmdkExtentInfo:
|
|
#
|
|
# Information about a VMDK extent file
|
|
#
|
|
# @filename: Name of the extent file
|
|
#
|
|
# @format: Extent type (e.g. FLAT or SPARSE)
|
|
#
|
|
# @virtual-size: Number of bytes covered by this extent
|
|
#
|
|
# @cluster-size: Cluster size in bytes (for non-flat extents)
|
|
#
|
|
# @compressed: Whether this extent contains compressed data
|
|
#
|
|
# Since: 8.0
|
|
##
|
|
{ 'struct': 'VmdkExtentInfo',
|
|
'data': {
|
|
'filename': 'str',
|
|
'format': 'str',
|
|
'virtual-size': 'int',
|
|
'*cluster-size': 'int',
|
|
'*compressed': 'bool'
|
|
} }
|
|
|
|
##
|
|
# @ImageInfoSpecificRbd:
|
|
#
|
|
# @encryption-format: Image encryption format
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'struct': 'ImageInfoSpecificRbd',
|
|
'data': {
|
|
'*encryption-format': 'RbdImageEncryptionFormat'
|
|
} }
|
|
|
|
##
|
|
# @ImageInfoSpecificFile:
|
|
#
|
|
# @extent-size-hint: Extent size hint (if available)
|
|
#
|
|
# Since: 8.0
|
|
##
|
|
{ 'struct': 'ImageInfoSpecificFile',
|
|
'data': {
|
|
'*extent-size-hint': 'size'
|
|
} }
|
|
|
|
##
|
|
# @ImageInfoSpecificKind:
|
|
#
|
|
# @luks: Since 2.7
|
|
#
|
|
# @rbd: Since 6.1
|
|
#
|
|
# @file: Since 8.0
|
|
#
|
|
# Since: 1.7
|
|
##
|
|
{ 'enum': 'ImageInfoSpecificKind',
|
|
'data': [ 'qcow2', 'vmdk', 'luks', 'rbd', 'file' ] }
|
|
|
|
##
|
|
# @ImageInfoSpecificQCow2Wrapper:
|
|
#
|
|
# Since: 1.7
|
|
##
|
|
{ 'struct': 'ImageInfoSpecificQCow2Wrapper',
|
|
'data': { 'data': 'ImageInfoSpecificQCow2' } }
|
|
|
|
##
|
|
# @ImageInfoSpecificVmdkWrapper:
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'struct': 'ImageInfoSpecificVmdkWrapper',
|
|
'data': { 'data': 'ImageInfoSpecificVmdk' } }
|
|
|
|
##
|
|
# @ImageInfoSpecificLUKSWrapper:
|
|
#
|
|
# Since: 2.7
|
|
##
|
|
{ 'struct': 'ImageInfoSpecificLUKSWrapper',
|
|
'data': { 'data': 'QCryptoBlockInfoLUKS' } }
|
|
# If we need to add block driver specific parameters for
|
|
# LUKS in future, then we'll subclass QCryptoBlockInfoLUKS
|
|
# to define a ImageInfoSpecificLUKS
|
|
|
|
##
|
|
# @ImageInfoSpecificRbdWrapper:
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'struct': 'ImageInfoSpecificRbdWrapper',
|
|
'data': { 'data': 'ImageInfoSpecificRbd' } }
|
|
|
|
##
|
|
# @ImageInfoSpecificFileWrapper:
|
|
#
|
|
# Since: 8.0
|
|
##
|
|
{ 'struct': 'ImageInfoSpecificFileWrapper',
|
|
'data': { 'data': 'ImageInfoSpecificFile' } }
|
|
|
|
##
|
|
# @ImageInfoSpecific:
|
|
#
|
|
# A discriminated record of image format specific information
|
|
# structures.
|
|
#
|
|
# Since: 1.7
|
|
##
|
|
{ 'union': 'ImageInfoSpecific',
|
|
'base': { 'type': 'ImageInfoSpecificKind' },
|
|
'discriminator': 'type',
|
|
'data': {
|
|
'qcow2': 'ImageInfoSpecificQCow2Wrapper',
|
|
'vmdk': 'ImageInfoSpecificVmdkWrapper',
|
|
'luks': 'ImageInfoSpecificLUKSWrapper',
|
|
'rbd': 'ImageInfoSpecificRbdWrapper',
|
|
'file': 'ImageInfoSpecificFileWrapper'
|
|
} }
|
|
|
|
##
|
|
# @BlockNodeInfo:
|
|
#
|
|
# Information about a QEMU image file
|
|
#
|
|
# @filename: name of the image file
|
|
#
|
|
# @format: format of the image file
|
|
#
|
|
# @virtual-size: maximum capacity in bytes of the image
|
|
#
|
|
# @actual-size: actual size on disk in bytes of the image
|
|
#
|
|
# @dirty-flag: true if image is not cleanly closed
|
|
#
|
|
# @cluster-size: size of a cluster in bytes
|
|
#
|
|
# @encrypted: true if the image is encrypted
|
|
#
|
|
# @compressed: true if the image is compressed (Since 1.7)
|
|
#
|
|
# @backing-filename: name of the backing file
|
|
#
|
|
# @full-backing-filename: full path of the backing file
|
|
#
|
|
# @backing-filename-format: the format of the backing file
|
|
#
|
|
# @snapshots: list of VM snapshots
|
|
#
|
|
# @format-specific: structure supplying additional format-specific
|
|
# information (since 1.7)
|
|
#
|
|
# Since: 8.0
|
|
##
|
|
{ 'struct': 'BlockNodeInfo',
|
|
'data': {'filename': 'str', 'format': 'str', '*dirty-flag': 'bool',
|
|
'*actual-size': 'int', 'virtual-size': 'int',
|
|
'*cluster-size': 'int', '*encrypted': 'bool', '*compressed': 'bool',
|
|
'*backing-filename': 'str', '*full-backing-filename': 'str',
|
|
'*backing-filename-format': 'str', '*snapshots': ['SnapshotInfo'],
|
|
'*format-specific': 'ImageInfoSpecific' } }
|
|
|
|
##
|
|
# @ImageInfo:
|
|
#
|
|
# Information about a QEMU image file, and potentially its backing
|
|
# image
|
|
#
|
|
# @backing-image: info of the backing image
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'struct': 'ImageInfo',
|
|
'base': 'BlockNodeInfo',
|
|
'data': {
|
|
'*backing-image': 'ImageInfo'
|
|
} }
|
|
|
|
##
|
|
# @BlockChildInfo:
|
|
#
|
|
# Information about all nodes in the block graph starting at some
|
|
# node, annotated with information about that node in relation to its
|
|
# parent.
|
|
#
|
|
# @name: Child name of the root node in the BlockGraphInfo struct, in
|
|
# its role as the child of some undescribed parent node
|
|
#
|
|
# @info: Block graph information starting at this node
|
|
#
|
|
# Since: 8.0
|
|
##
|
|
{ 'struct': 'BlockChildInfo',
|
|
'data': {
|
|
'name': 'str',
|
|
'info': 'BlockGraphInfo'
|
|
} }
|
|
|
|
##
|
|
# @BlockGraphInfo:
|
|
#
|
|
# Information about all nodes in a block (sub)graph in the form of
|
|
# BlockNodeInfo data. The base BlockNodeInfo struct contains the
|
|
# information for the (sub)graph's root node.
|
|
#
|
|
# @children: Array of links to this node's child nodes' information
|
|
#
|
|
# Since: 8.0
|
|
##
|
|
{ 'struct': 'BlockGraphInfo',
|
|
'base': 'BlockNodeInfo',
|
|
'data': { 'children': ['BlockChildInfo'] } }
|
|
|
|
##
|
|
# @ImageCheck:
|
|
#
|
|
# Information about a QEMU image file check
|
|
#
|
|
# @filename: name of the image file checked
|
|
#
|
|
# @format: format of the image file checked
|
|
#
|
|
# @check-errors: number of unexpected errors occurred during check
|
|
#
|
|
# @image-end-offset: offset (in bytes) where the image ends, this
|
|
# field is present if the driver for the image format supports it
|
|
#
|
|
# @corruptions: number of corruptions found during the check if any
|
|
#
|
|
# @leaks: number of leaks found during the check if any
|
|
#
|
|
# @corruptions-fixed: number of corruptions fixed during the check if
|
|
# any
|
|
#
|
|
# @leaks-fixed: number of leaks fixed during the check if any
|
|
#
|
|
# @total-clusters: total number of clusters, this field is present if
|
|
# the driver for the image format supports it
|
|
#
|
|
# @allocated-clusters: total number of allocated clusters, this field
|
|
# is present if the driver for the image format supports it
|
|
#
|
|
# @fragmented-clusters: total number of fragmented clusters, this
|
|
# field is present if the driver for the image format supports it
|
|
#
|
|
# @compressed-clusters: total number of compressed clusters, this
|
|
# field is present if the driver for the image format supports it
|
|
#
|
|
# Since: 1.4
|
|
##
|
|
{ 'struct': 'ImageCheck',
|
|
'data': {'filename': 'str', 'format': 'str', 'check-errors': 'int',
|
|
'*image-end-offset': 'int', '*corruptions': 'int', '*leaks': 'int',
|
|
'*corruptions-fixed': 'int', '*leaks-fixed': 'int',
|
|
'*total-clusters': 'int', '*allocated-clusters': 'int',
|
|
'*fragmented-clusters': 'int', '*compressed-clusters': 'int' } }
|
|
|
|
##
|
|
# @MapEntry:
|
|
#
|
|
# Mapping information from a virtual block range to a host file range
|
|
#
|
|
# @start: virtual (guest) offset of the first byte described by this
|
|
# entry
|
|
#
|
|
# @length: the number of bytes of the mapped virtual range
|
|
#
|
|
# @data: reading the image will actually read data from a file (in
|
|
# particular, if @offset is present this means that the sectors
|
|
# are not simply preallocated, but contain actual data in raw
|
|
# format)
|
|
#
|
|
# @zero: whether the virtual blocks read as zeroes
|
|
#
|
|
# @depth: number of layers (0 = top image, 1 = top image's backing
|
|
# file, ..., n - 1 = bottom image (where n is the number of images
|
|
# in the chain)) before reaching one for which the range is
|
|
# allocated
|
|
#
|
|
# @present: true if this layer provides the data, false if adding a
|
|
# backing layer could impact this region (since 6.1)
|
|
#
|
|
# @offset: if present, the image file stores the data for this range
|
|
# in raw format at the given (host) offset
|
|
#
|
|
# @filename: filename that is referred to by @offset
|
|
#
|
|
# Since: 2.6
|
|
##
|
|
{ 'struct': 'MapEntry',
|
|
'data': {'start': 'int', 'length': 'int', 'data': 'bool',
|
|
'zero': 'bool', 'depth': 'int', 'present': 'bool',
|
|
'*offset': 'int', '*filename': 'str' } }
|
|
|
|
##
|
|
# @BlockdevCacheInfo:
|
|
#
|
|
# Cache mode information for a block device
|
|
#
|
|
# @writeback: true if writeback mode is enabled
|
|
#
|
|
# @direct: true if the host page cache is bypassed (O_DIRECT)
|
|
#
|
|
# @no-flush: true if flush requests are ignored for the device
|
|
#
|
|
# Since: 2.3
|
|
##
|
|
{ 'struct': 'BlockdevCacheInfo',
|
|
'data': { 'writeback': 'bool',
|
|
'direct': 'bool',
|
|
'no-flush': 'bool' } }
|
|
|
|
##
|
|
# @BlockDeviceInfo:
|
|
#
|
|
# Information about the backing device for a block device.
|
|
#
|
|
# @file: the filename of the backing device
|
|
#
|
|
# @node-name: the name of the block driver node (Since 2.0)
|
|
#
|
|
# @ro: true if the backing device was open read-only
|
|
#
|
|
# @drv: the name of the block format used to open the backing device.
|
|
# As of 0.14 this can be: 'blkdebug', 'bochs', 'cloop', 'cow',
|
|
# 'dmg', 'file', 'file', 'ftp', 'ftps', 'host_cdrom',
|
|
# 'host_device', 'http', 'https', 'luks', 'nbd', 'parallels',
|
|
# 'qcow', 'qcow2', 'raw', 'vdi', 'vmdk', 'vpc', 'vvfat' 2.2:
|
|
# 'archipelago' added, 'cow' dropped 2.3: 'host_floppy' deprecated
|
|
# 2.5: 'host_floppy' dropped 2.6: 'luks' added 2.8: 'replication'
|
|
# added, 'tftp' dropped 2.9: 'archipelago' dropped
|
|
#
|
|
# @backing_file: the name of the backing file (for copy-on-write)
|
|
#
|
|
# @backing_file_depth: number of files in the backing file chain
|
|
# (since: 1.2)
|
|
#
|
|
# @encrypted: true if the backing device is encrypted
|
|
#
|
|
# @detect_zeroes: detect and optimize zero writes (Since 2.1)
|
|
#
|
|
# @bps: total throughput limit in bytes per second is specified
|
|
#
|
|
# @bps_rd: read throughput limit in bytes per second is specified
|
|
#
|
|
# @bps_wr: write throughput limit in bytes per second is specified
|
|
#
|
|
# @iops: total I/O operations per second is specified
|
|
#
|
|
# @iops_rd: read I/O operations per second is specified
|
|
#
|
|
# @iops_wr: write I/O operations per second is specified
|
|
#
|
|
# @image: the info of image used (since: 1.6)
|
|
#
|
|
# @bps_max: total throughput limit during bursts, in bytes (Since 1.7)
|
|
#
|
|
# @bps_rd_max: read throughput limit during bursts, in bytes (Since
|
|
# 1.7)
|
|
#
|
|
# @bps_wr_max: write throughput limit during bursts, in bytes (Since
|
|
# 1.7)
|
|
#
|
|
# @iops_max: total I/O operations per second during bursts, in bytes
|
|
# (Since 1.7)
|
|
#
|
|
# @iops_rd_max: read I/O operations per second during bursts, in bytes
|
|
# (Since 1.7)
|
|
#
|
|
# @iops_wr_max: write I/O operations per second during bursts, in
|
|
# bytes (Since 1.7)
|
|
#
|
|
# @bps_max_length: maximum length of the @bps_max burst period, in
|
|
# seconds. (Since 2.6)
|
|
#
|
|
# @bps_rd_max_length: maximum length of the @bps_rd_max burst period,
|
|
# in seconds. (Since 2.6)
|
|
#
|
|
# @bps_wr_max_length: maximum length of the @bps_wr_max burst period,
|
|
# in seconds. (Since 2.6)
|
|
#
|
|
# @iops_max_length: maximum length of the @iops burst period, in
|
|
# seconds. (Since 2.6)
|
|
#
|
|
# @iops_rd_max_length: maximum length of the @iops_rd_max burst
|
|
# period, in seconds. (Since 2.6)
|
|
#
|
|
# @iops_wr_max_length: maximum length of the @iops_wr_max burst
|
|
# period, in seconds. (Since 2.6)
|
|
#
|
|
# @iops_size: an I/O size in bytes (Since 1.7)
|
|
#
|
|
# @group: throttle group name (Since 2.4)
|
|
#
|
|
# @cache: the cache mode used for the block device (since: 2.3)
|
|
#
|
|
# @write_threshold: configured write threshold for the device. 0 if
|
|
# disabled. (Since 2.3)
|
|
#
|
|
# @dirty-bitmaps: dirty bitmaps information (only present if node has
|
|
# one or more dirty bitmaps) (Since 4.2)
|
|
#
|
|
# Since: 0.14
|
|
##
|
|
{ 'struct': 'BlockDeviceInfo',
|
|
'data': { 'file': 'str', '*node-name': 'str', 'ro': 'bool', 'drv': 'str',
|
|
'*backing_file': 'str', 'backing_file_depth': 'int',
|
|
'encrypted': 'bool',
|
|
'detect_zeroes': 'BlockdevDetectZeroesOptions',
|
|
'bps': 'int', 'bps_rd': 'int', 'bps_wr': 'int',
|
|
'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int',
|
|
'image': 'ImageInfo',
|
|
'*bps_max': 'int', '*bps_rd_max': 'int',
|
|
'*bps_wr_max': 'int', '*iops_max': 'int',
|
|
'*iops_rd_max': 'int', '*iops_wr_max': 'int',
|
|
'*bps_max_length': 'int', '*bps_rd_max_length': 'int',
|
|
'*bps_wr_max_length': 'int', '*iops_max_length': 'int',
|
|
'*iops_rd_max_length': 'int', '*iops_wr_max_length': 'int',
|
|
'*iops_size': 'int', '*group': 'str', 'cache': 'BlockdevCacheInfo',
|
|
'write_threshold': 'int', '*dirty-bitmaps': ['BlockDirtyInfo'] } }
|
|
|
|
##
|
|
# @BlockDeviceIoStatus:
|
|
#
|
|
# An enumeration of block device I/O status.
|
|
#
|
|
# @ok: The last I/O operation has succeeded
|
|
#
|
|
# @failed: The last I/O operation has failed
|
|
#
|
|
# @nospace: The last I/O operation has failed due to a no-space
|
|
# condition
|
|
#
|
|
# Since: 1.0
|
|
##
|
|
{ 'enum': 'BlockDeviceIoStatus', 'data': [ 'ok', 'failed', 'nospace' ] }
|
|
|
|
##
|
|
# @BlockDirtyInfo:
|
|
#
|
|
# Block dirty bitmap information.
|
|
#
|
|
# @name: the name of the dirty bitmap (Since 2.4)
|
|
#
|
|
# @count: number of dirty bytes according to the dirty bitmap
|
|
#
|
|
# @granularity: granularity of the dirty bitmap in bytes (since 1.4)
|
|
#
|
|
# @recording: true if the bitmap is recording new writes from the
|
|
# guest. (since 4.0)
|
|
#
|
|
# @busy: true if the bitmap is in-use by some operation (NBD or jobs)
|
|
# and cannot be modified via QMP or used by another operation.
|
|
# (since 4.0)
|
|
#
|
|
# @persistent: true if the bitmap was stored on disk, is scheduled to
|
|
# be stored on disk, or both. (since 4.0)
|
|
#
|
|
# @inconsistent: true if this is a persistent bitmap that was
|
|
# improperly stored. Implies @persistent to be true; @recording
|
|
# and @busy to be false. This bitmap cannot be used. To remove
|
|
# it, use @block-dirty-bitmap-remove. (Since 4.0)
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'struct': 'BlockDirtyInfo',
|
|
'data': {'*name': 'str', 'count': 'int', 'granularity': 'uint32',
|
|
'recording': 'bool', 'busy': 'bool',
|
|
'persistent': 'bool', '*inconsistent': 'bool' } }
|
|
|
|
##
|
|
# @Qcow2BitmapInfoFlags:
|
|
#
|
|
# An enumeration of flags that a bitmap can report to the user.
|
|
#
|
|
# @in-use: This flag is set by any process actively modifying the
|
|
# qcow2 file, and cleared when the updated bitmap is flushed to
|
|
# the qcow2 image. The presence of this flag in an offline image
|
|
# means that the bitmap was not saved correctly after its last
|
|
# usage, and may contain inconsistent data.
|
|
#
|
|
# @auto: The bitmap must reflect all changes of the virtual disk by
|
|
# any application that would write to this qcow2 file.
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'enum': 'Qcow2BitmapInfoFlags',
|
|
'data': ['in-use', 'auto'] }
|
|
|
|
##
|
|
# @Qcow2BitmapInfo:
|
|
#
|
|
# Qcow2 bitmap information.
|
|
#
|
|
# @name: the name of the bitmap
|
|
#
|
|
# @granularity: granularity of the bitmap in bytes
|
|
#
|
|
# @flags: flags of the bitmap
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'struct': 'Qcow2BitmapInfo',
|
|
'data': {'name': 'str', 'granularity': 'uint32',
|
|
'flags': ['Qcow2BitmapInfoFlags'] } }
|
|
|
|
##
|
|
# @BlockLatencyHistogramInfo:
|
|
#
|
|
# Block latency histogram.
|
|
#
|
|
# @boundaries: list of interval boundary values in nanoseconds, all
|
|
# greater than zero and in ascending order. For example, the list
|
|
# [10, 50, 100] produces the following histogram intervals: [0,
|
|
# 10), [10, 50), [50, 100), [100, +inf).
|
|
#
|
|
# @bins: list of io request counts corresponding to histogram
|
|
# intervals, one more element than @boundaries has. For the
|
|
# example above, @bins may be something like [3, 1, 5, 2], and
|
|
# corresponding histogram looks like:
|
|
#
|
|
# ::
|
|
#
|
|
# 5| *
|
|
# 4| *
|
|
# 3| * *
|
|
# 2| * * *
|
|
# 1| * * * *
|
|
# +------------------
|
|
# 10 50 100
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'struct': 'BlockLatencyHistogramInfo',
|
|
'data': {'boundaries': ['uint64'], 'bins': ['uint64'] } }
|
|
|
|
##
|
|
# @BlockInfo:
|
|
#
|
|
# Block device information. This structure describes a virtual device
|
|
# and the backing device associated with it.
|
|
#
|
|
# @device: The device name associated with the virtual device.
|
|
#
|
|
# @qdev: The qdev ID, or if no ID is assigned, the QOM path of the
|
|
# block device. (since 2.10)
|
|
#
|
|
# @type: This field is returned only for compatibility reasons, it
|
|
# should not be used (always returns 'unknown')
|
|
#
|
|
# @removable: True if the device supports removable media.
|
|
#
|
|
# @locked: True if the guest has locked this device from having its
|
|
# media removed
|
|
#
|
|
# @tray_open: True if the device's tray is open (only present if it
|
|
# has a tray)
|
|
#
|
|
# @io-status: @BlockDeviceIoStatus. Only present if the device
|
|
# supports it and the VM is configured to stop on errors
|
|
# (supported device models: virtio-blk, IDE, SCSI except
|
|
# scsi-generic)
|
|
#
|
|
# @inserted: @BlockDeviceInfo describing the device if media is
|
|
# present
|
|
#
|
|
# Since: 0.14
|
|
##
|
|
{ 'struct': 'BlockInfo',
|
|
'data': {'device': 'str', '*qdev': 'str', 'type': 'str', 'removable': 'bool',
|
|
'locked': 'bool', '*inserted': 'BlockDeviceInfo',
|
|
'*tray_open': 'bool', '*io-status': 'BlockDeviceIoStatus' } }
|
|
|
|
##
|
|
# @BlockMeasureInfo:
|
|
#
|
|
# Image file size calculation information. This structure describes
|
|
# the size requirements for creating a new image file.
|
|
#
|
|
# The size requirements depend on the new image file format. File
|
|
# size always equals virtual disk size for the 'raw' format, even for
|
|
# sparse POSIX files. Compact formats such as 'qcow2' represent
|
|
# unallocated and zero regions efficiently so file size may be smaller
|
|
# than virtual disk size.
|
|
#
|
|
# The values are upper bounds that are guaranteed to fit the new image
|
|
# file. Subsequent modification, such as internal snapshot or further
|
|
# bitmap creation, may require additional space and is not covered
|
|
# here.
|
|
#
|
|
# @required: Size required for a new image file, in bytes, when
|
|
# copying just allocated guest-visible contents.
|
|
#
|
|
# @fully-allocated: Image file size, in bytes, once data has been
|
|
# written to all sectors, when copying just guest-visible
|
|
# contents.
|
|
#
|
|
# @bitmaps: Additional size required if all the top-level bitmap
|
|
# metadata in the source image were to be copied to the
|
|
# destination, present only when source and destination both
|
|
# support persistent bitmaps. (since 5.1)
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'struct': 'BlockMeasureInfo',
|
|
'data': {'required': 'int', 'fully-allocated': 'int', '*bitmaps': 'int'} }
|
|
|
|
##
|
|
# @query-block:
|
|
#
|
|
# Get a list of BlockInfo for all virtual block devices.
|
|
#
|
|
# Returns: a list of @BlockInfo describing each virtual block device.
|
|
# Filter nodes that were created implicitly are skipped over.
|
|
#
|
|
# Since: 0.14
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "query-block" }
|
|
# <- {
|
|
# "return":[
|
|
# {
|
|
# "io-status": "ok",
|
|
# "device":"ide0-hd0",
|
|
# "locked":false,
|
|
# "removable":false,
|
|
# "inserted":{
|
|
# "ro":false,
|
|
# "drv":"qcow2",
|
|
# "encrypted":false,
|
|
# "file":"disks/test.qcow2",
|
|
# "backing_file_depth":1,
|
|
# "bps":1000000,
|
|
# "bps_rd":0,
|
|
# "bps_wr":0,
|
|
# "iops":1000000,
|
|
# "iops_rd":0,
|
|
# "iops_wr":0,
|
|
# "bps_max": 8000000,
|
|
# "bps_rd_max": 0,
|
|
# "bps_wr_max": 0,
|
|
# "iops_max": 0,
|
|
# "iops_rd_max": 0,
|
|
# "iops_wr_max": 0,
|
|
# "iops_size": 0,
|
|
# "detect_zeroes": "on",
|
|
# "write_threshold": 0,
|
|
# "image":{
|
|
# "filename":"disks/test.qcow2",
|
|
# "format":"qcow2",
|
|
# "virtual-size":2048000,
|
|
# "backing_file":"base.qcow2",
|
|
# "full-backing-filename":"disks/base.qcow2",
|
|
# "backing-filename-format":"qcow2",
|
|
# "snapshots":[
|
|
# {
|
|
# "id": "1",
|
|
# "name": "snapshot1",
|
|
# "vm-state-size": 0,
|
|
# "date-sec": 10000200,
|
|
# "date-nsec": 12,
|
|
# "vm-clock-sec": 206,
|
|
# "vm-clock-nsec": 30
|
|
# }
|
|
# ],
|
|
# "backing-image":{
|
|
# "filename":"disks/base.qcow2",
|
|
# "format":"qcow2",
|
|
# "virtual-size":2048000
|
|
# }
|
|
# }
|
|
# },
|
|
# "qdev": "ide_disk",
|
|
# "type":"unknown"
|
|
# },
|
|
# {
|
|
# "io-status": "ok",
|
|
# "device":"ide1-cd0",
|
|
# "locked":false,
|
|
# "removable":true,
|
|
# "qdev": "/machine/unattached/device[23]",
|
|
# "tray_open": false,
|
|
# "type":"unknown"
|
|
# },
|
|
# {
|
|
# "device":"floppy0",
|
|
# "locked":false,
|
|
# "removable":true,
|
|
# "qdev": "/machine/unattached/device[20]",
|
|
# "type":"unknown"
|
|
# },
|
|
# {
|
|
# "device":"sd0",
|
|
# "locked":false,
|
|
# "removable":true,
|
|
# "type":"unknown"
|
|
# }
|
|
# ]
|
|
# }
|
|
##
|
|
{ 'command': 'query-block', 'returns': ['BlockInfo'],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @BlockDeviceTimedStats:
|
|
#
|
|
# Statistics of a block device during a given interval of time.
|
|
#
|
|
# @interval_length: Interval used for calculating the statistics, in
|
|
# seconds.
|
|
#
|
|
# @min_rd_latency_ns: Minimum latency of read operations in the
|
|
# defined interval, in nanoseconds.
|
|
#
|
|
# @min_wr_latency_ns: Minimum latency of write operations in the
|
|
# defined interval, in nanoseconds.
|
|
#
|
|
# @min_zone_append_latency_ns: Minimum latency of zone append
|
|
# operations in the defined interval, in nanoseconds (since 8.1)
|
|
#
|
|
# @min_flush_latency_ns: Minimum latency of flush operations in the
|
|
# defined interval, in nanoseconds.
|
|
#
|
|
# @max_rd_latency_ns: Maximum latency of read operations in the
|
|
# defined interval, in nanoseconds.
|
|
#
|
|
# @max_wr_latency_ns: Maximum latency of write operations in the
|
|
# defined interval, in nanoseconds.
|
|
#
|
|
# @max_zone_append_latency_ns: Maximum latency of zone append
|
|
# operations in the defined interval, in nanoseconds (since 8.1)
|
|
#
|
|
# @max_flush_latency_ns: Maximum latency of flush operations in the
|
|
# defined interval, in nanoseconds.
|
|
#
|
|
# @avg_rd_latency_ns: Average latency of read operations in the
|
|
# defined interval, in nanoseconds.
|
|
#
|
|
# @avg_wr_latency_ns: Average latency of write operations in the
|
|
# defined interval, in nanoseconds.
|
|
#
|
|
# @avg_zone_append_latency_ns: Average latency of zone append
|
|
# operations in the defined interval, in nanoseconds (since 8.1)
|
|
#
|
|
# @avg_flush_latency_ns: Average latency of flush operations in the
|
|
# defined interval, in nanoseconds.
|
|
#
|
|
# @avg_rd_queue_depth: Average number of pending read operations in
|
|
# the defined interval.
|
|
#
|
|
# @avg_wr_queue_depth: Average number of pending write operations in
|
|
# the defined interval.
|
|
#
|
|
# @avg_zone_append_queue_depth: Average number of pending zone append
|
|
# operations in the defined interval (since 8.1).
|
|
#
|
|
# Since: 2.5
|
|
##
|
|
{ 'struct': 'BlockDeviceTimedStats',
|
|
'data': { 'interval_length': 'int', 'min_rd_latency_ns': 'int',
|
|
'max_rd_latency_ns': 'int', 'avg_rd_latency_ns': 'int',
|
|
'min_wr_latency_ns': 'int', 'max_wr_latency_ns': 'int',
|
|
'avg_wr_latency_ns': 'int', 'min_zone_append_latency_ns': 'int',
|
|
'max_zone_append_latency_ns': 'int',
|
|
'avg_zone_append_latency_ns': 'int',
|
|
'min_flush_latency_ns': 'int', 'max_flush_latency_ns': 'int',
|
|
'avg_flush_latency_ns': 'int', 'avg_rd_queue_depth': 'number',
|
|
'avg_wr_queue_depth': 'number',
|
|
'avg_zone_append_queue_depth': 'number' } }
|
|
|
|
##
|
|
# @BlockDeviceStats:
|
|
#
|
|
# Statistics of a virtual block device or a block backing device.
|
|
#
|
|
# @rd_bytes: The number of bytes read by the device.
|
|
#
|
|
# @wr_bytes: The number of bytes written by the device.
|
|
#
|
|
# @zone_append_bytes: The number of bytes appended by the zoned
|
|
# devices (since 8.1)
|
|
#
|
|
# @unmap_bytes: The number of bytes unmapped by the device (Since 4.2)
|
|
#
|
|
# @rd_operations: The number of read operations performed by the
|
|
# device.
|
|
#
|
|
# @wr_operations: The number of write operations performed by the
|
|
# device.
|
|
#
|
|
# @zone_append_operations: The number of zone append operations
|
|
# performed by the zoned devices (since 8.1)
|
|
#
|
|
# @flush_operations: The number of cache flush operations performed by
|
|
# the device (since 0.15)
|
|
#
|
|
# @unmap_operations: The number of unmap operations performed by the
|
|
# device (Since 4.2)
|
|
#
|
|
# @rd_total_time_ns: Total time spent on reads in nanoseconds (since
|
|
# 0.15).
|
|
#
|
|
# @wr_total_time_ns: Total time spent on writes in nanoseconds (since
|
|
# 0.15).
|
|
#
|
|
# @zone_append_total_time_ns: Total time spent on zone append writes
|
|
# in nanoseconds (since 8.1)
|
|
#
|
|
# @flush_total_time_ns: Total time spent on cache flushes in
|
|
# nanoseconds (since 0.15).
|
|
#
|
|
# @unmap_total_time_ns: Total time spent on unmap operations in
|
|
# nanoseconds (Since 4.2)
|
|
#
|
|
# @wr_highest_offset: The offset after the greatest byte written to
|
|
# the device. The intended use of this information is for
|
|
# growable sparse files (like qcow2) that are used on top of a
|
|
# physical device.
|
|
#
|
|
# @rd_merged: Number of read requests that have been merged into
|
|
# another request (Since 2.3).
|
|
#
|
|
# @wr_merged: Number of write requests that have been merged into
|
|
# another request (Since 2.3).
|
|
#
|
|
# @zone_append_merged: Number of zone append requests that have been
|
|
# merged into another request (since 8.1)
|
|
#
|
|
# @unmap_merged: Number of unmap requests that have been merged into
|
|
# another request (Since 4.2)
|
|
#
|
|
# @idle_time_ns: Time since the last I/O operation, in nanoseconds.
|
|
# If the field is absent it means that there haven't been any
|
|
# operations yet (Since 2.5).
|
|
#
|
|
# @failed_rd_operations: The number of failed read operations
|
|
# performed by the device (Since 2.5)
|
|
#
|
|
# @failed_wr_operations: The number of failed write operations
|
|
# performed by the device (Since 2.5)
|
|
#
|
|
# @failed_zone_append_operations: The number of failed zone append
|
|
# write operations performed by the zoned devices (since 8.1)
|
|
#
|
|
# @failed_flush_operations: The number of failed flush operations
|
|
# performed by the device (Since 2.5)
|
|
#
|
|
# @failed_unmap_operations: The number of failed unmap operations
|
|
# performed by the device (Since 4.2)
|
|
#
|
|
# @invalid_rd_operations: The number of invalid read operations
|
|
# performed by the device (Since 2.5)
|
|
#
|
|
# @invalid_wr_operations: The number of invalid write operations
|
|
# performed by the device (Since 2.5)
|
|
#
|
|
# @invalid_zone_append_operations: The number of invalid zone append
|
|
# operations performed by the zoned device (since 8.1)
|
|
#
|
|
# @invalid_flush_operations: The number of invalid flush operations
|
|
# performed by the device (Since 2.5)
|
|
#
|
|
# @invalid_unmap_operations: The number of invalid unmap operations
|
|
# performed by the device (Since 4.2)
|
|
#
|
|
# @account_invalid: Whether invalid operations are included in the
|
|
# last access statistics (Since 2.5)
|
|
#
|
|
# @account_failed: Whether failed operations are included in the
|
|
# latency and last access statistics (Since 2.5)
|
|
#
|
|
# @timed_stats: Statistics specific to the set of previously defined
|
|
# intervals of time (Since 2.5)
|
|
#
|
|
# @rd_latency_histogram: @BlockLatencyHistogramInfo. (Since 4.0)
|
|
#
|
|
# @wr_latency_histogram: @BlockLatencyHistogramInfo. (Since 4.0)
|
|
#
|
|
# @zone_append_latency_histogram: @BlockLatencyHistogramInfo.
|
|
# (since 8.1)
|
|
#
|
|
# @flush_latency_histogram: @BlockLatencyHistogramInfo. (Since 4.0)
|
|
#
|
|
# Since: 0.14
|
|
##
|
|
{ 'struct': 'BlockDeviceStats',
|
|
'data': {'rd_bytes': 'int', 'wr_bytes': 'int', 'zone_append_bytes': 'int',
|
|
'unmap_bytes' : 'int', 'rd_operations': 'int',
|
|
'wr_operations': 'int', 'zone_append_operations': 'int',
|
|
'flush_operations': 'int', 'unmap_operations': 'int',
|
|
'rd_total_time_ns': 'int', 'wr_total_time_ns': 'int',
|
|
'zone_append_total_time_ns': 'int', 'flush_total_time_ns': 'int',
|
|
'unmap_total_time_ns': 'int', 'wr_highest_offset': 'int',
|
|
'rd_merged': 'int', 'wr_merged': 'int', 'zone_append_merged': 'int',
|
|
'unmap_merged': 'int', '*idle_time_ns': 'int',
|
|
'failed_rd_operations': 'int', 'failed_wr_operations': 'int',
|
|
'failed_zone_append_operations': 'int',
|
|
'failed_flush_operations': 'int',
|
|
'failed_unmap_operations': 'int', 'invalid_rd_operations': 'int',
|
|
'invalid_wr_operations': 'int',
|
|
'invalid_zone_append_operations': 'int',
|
|
'invalid_flush_operations': 'int', 'invalid_unmap_operations': 'int',
|
|
'account_invalid': 'bool', 'account_failed': 'bool',
|
|
'timed_stats': ['BlockDeviceTimedStats'],
|
|
'*rd_latency_histogram': 'BlockLatencyHistogramInfo',
|
|
'*wr_latency_histogram': 'BlockLatencyHistogramInfo',
|
|
'*zone_append_latency_histogram': 'BlockLatencyHistogramInfo',
|
|
'*flush_latency_histogram': 'BlockLatencyHistogramInfo' } }
|
|
|
|
##
|
|
# @BlockStatsSpecificFile:
|
|
#
|
|
# File driver statistics
|
|
#
|
|
# @discard-nb-ok: The number of successful discard operations
|
|
# performed by the driver.
|
|
#
|
|
# @discard-nb-failed: The number of failed discard operations
|
|
# performed by the driver.
|
|
#
|
|
# @discard-bytes-ok: The number of bytes discarded by the driver.
|
|
#
|
|
# Since: 4.2
|
|
##
|
|
{ 'struct': 'BlockStatsSpecificFile',
|
|
'data': {
|
|
'discard-nb-ok': 'uint64',
|
|
'discard-nb-failed': 'uint64',
|
|
'discard-bytes-ok': 'uint64' } }
|
|
|
|
##
|
|
# @BlockStatsSpecificNvme:
|
|
#
|
|
# NVMe driver statistics
|
|
#
|
|
# @completion-errors: The number of completion errors.
|
|
#
|
|
# @aligned-accesses: The number of aligned accesses performed by the
|
|
# driver.
|
|
#
|
|
# @unaligned-accesses: The number of unaligned accesses performed by
|
|
# the driver.
|
|
#
|
|
# Since: 5.2
|
|
##
|
|
{ 'struct': 'BlockStatsSpecificNvme',
|
|
'data': {
|
|
'completion-errors': 'uint64',
|
|
'aligned-accesses': 'uint64',
|
|
'unaligned-accesses': 'uint64' } }
|
|
|
|
##
|
|
# @BlockStatsSpecific:
|
|
#
|
|
# Block driver specific statistics
|
|
#
|
|
# Since: 4.2
|
|
##
|
|
{ 'union': 'BlockStatsSpecific',
|
|
'base': { 'driver': 'BlockdevDriver' },
|
|
'discriminator': 'driver',
|
|
'data': {
|
|
'file': 'BlockStatsSpecificFile',
|
|
'host_device': { 'type': 'BlockStatsSpecificFile',
|
|
'if': 'HAVE_HOST_BLOCK_DEVICE' },
|
|
'nvme': 'BlockStatsSpecificNvme' } }
|
|
|
|
##
|
|
# @BlockStats:
|
|
#
|
|
# Statistics of a virtual block device or a block backing device.
|
|
#
|
|
# @device: If the stats are for a virtual block device, the name
|
|
# corresponding to the virtual block device.
|
|
#
|
|
# @node-name: The node name of the device. (Since 2.3)
|
|
#
|
|
# @qdev: The qdev ID, or if no ID is assigned, the QOM path of the
|
|
# block device. (since 3.0)
|
|
#
|
|
# @stats: A @BlockDeviceStats for the device.
|
|
#
|
|
# @driver-specific: Optional driver-specific stats. (Since 4.2)
|
|
#
|
|
# @parent: This describes the file block device if it has one.
|
|
# Contains recursively the statistics of the underlying protocol
|
|
# (e.g. the host file for a qcow2 image). If there is no
|
|
# underlying protocol, this field is omitted
|
|
#
|
|
# @backing: This describes the backing block device if it has one.
|
|
# (Since 2.0)
|
|
#
|
|
# Since: 0.14
|
|
##
|
|
{ 'struct': 'BlockStats',
|
|
'data': {'*device': 'str', '*qdev': 'str', '*node-name': 'str',
|
|
'stats': 'BlockDeviceStats',
|
|
'*driver-specific': 'BlockStatsSpecific',
|
|
'*parent': 'BlockStats',
|
|
'*backing': 'BlockStats'} }
|
|
|
|
##
|
|
# @query-blockstats:
|
|
#
|
|
# Query the @BlockStats for all virtual block devices.
|
|
#
|
|
# @query-nodes: If true, the command will query all the block nodes
|
|
# that have a node name, in a list which will include "parent"
|
|
# information, but not "backing". If false or omitted, the
|
|
# behavior is as before - query all the device backends,
|
|
# recursively including their "parent" and "backing". Filter nodes
|
|
# that were created implicitly are skipped over in this mode.
|
|
# (Since 2.3)
|
|
#
|
|
# Returns: A list of @BlockStats for each virtual block devices.
|
|
#
|
|
# Since: 0.14
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "query-blockstats" }
|
|
# <- {
|
|
# "return":[
|
|
# {
|
|
# "device":"ide0-hd0",
|
|
# "parent":{
|
|
# "stats":{
|
|
# "wr_highest_offset":3686448128,
|
|
# "wr_bytes":9786368,
|
|
# "wr_operations":751,
|
|
# "rd_bytes":122567168,
|
|
# "rd_operations":36772
|
|
# "wr_total_times_ns":313253456
|
|
# "rd_total_times_ns":3465673657
|
|
# "flush_total_times_ns":49653
|
|
# "flush_operations":61,
|
|
# "rd_merged":0,
|
|
# "wr_merged":0,
|
|
# "idle_time_ns":2953431879,
|
|
# "account_invalid":true,
|
|
# "account_failed":false
|
|
# }
|
|
# },
|
|
# "stats":{
|
|
# "wr_highest_offset":2821110784,
|
|
# "wr_bytes":9786368,
|
|
# "wr_operations":692,
|
|
# "rd_bytes":122739200,
|
|
# "rd_operations":36604
|
|
# "flush_operations":51,
|
|
# "wr_total_times_ns":313253456
|
|
# "rd_total_times_ns":3465673657
|
|
# "flush_total_times_ns":49653,
|
|
# "rd_merged":0,
|
|
# "wr_merged":0,
|
|
# "idle_time_ns":2953431879,
|
|
# "account_invalid":true,
|
|
# "account_failed":false
|
|
# },
|
|
# "qdev": "/machine/unattached/device[23]"
|
|
# },
|
|
# {
|
|
# "device":"ide1-cd0",
|
|
# "stats":{
|
|
# "wr_highest_offset":0,
|
|
# "wr_bytes":0,
|
|
# "wr_operations":0,
|
|
# "rd_bytes":0,
|
|
# "rd_operations":0
|
|
# "flush_operations":0,
|
|
# "wr_total_times_ns":0
|
|
# "rd_total_times_ns":0
|
|
# "flush_total_times_ns":0,
|
|
# "rd_merged":0,
|
|
# "wr_merged":0,
|
|
# "account_invalid":false,
|
|
# "account_failed":false
|
|
# },
|
|
# "qdev": "/machine/unattached/device[24]"
|
|
# },
|
|
# {
|
|
# "device":"floppy0",
|
|
# "stats":{
|
|
# "wr_highest_offset":0,
|
|
# "wr_bytes":0,
|
|
# "wr_operations":0,
|
|
# "rd_bytes":0,
|
|
# "rd_operations":0
|
|
# "flush_operations":0,
|
|
# "wr_total_times_ns":0
|
|
# "rd_total_times_ns":0
|
|
# "flush_total_times_ns":0,
|
|
# "rd_merged":0,
|
|
# "wr_merged":0,
|
|
# "account_invalid":false,
|
|
# "account_failed":false
|
|
# },
|
|
# "qdev": "/machine/unattached/device[16]"
|
|
# },
|
|
# {
|
|
# "device":"sd0",
|
|
# "stats":{
|
|
# "wr_highest_offset":0,
|
|
# "wr_bytes":0,
|
|
# "wr_operations":0,
|
|
# "rd_bytes":0,
|
|
# "rd_operations":0
|
|
# "flush_operations":0,
|
|
# "wr_total_times_ns":0
|
|
# "rd_total_times_ns":0
|
|
# "flush_total_times_ns":0,
|
|
# "rd_merged":0,
|
|
# "wr_merged":0,
|
|
# "account_invalid":false,
|
|
# "account_failed":false
|
|
# }
|
|
# }
|
|
# ]
|
|
# }
|
|
##
|
|
{ 'command': 'query-blockstats',
|
|
'data': { '*query-nodes': 'bool' },
|
|
'returns': ['BlockStats'],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @BlockdevOnError:
|
|
#
|
|
# An enumeration of possible behaviors for errors on I/O operations.
|
|
# The exact meaning depends on whether the I/O was initiated by a
|
|
# guest or by a block job
|
|
#
|
|
# @report: for guest operations, report the error to the guest; for
|
|
# jobs, cancel the job
|
|
#
|
|
# @ignore: ignore the error, only report a QMP event (BLOCK_IO_ERROR
|
|
# or BLOCK_JOB_ERROR). The backup, mirror and commit block jobs
|
|
# retry the failing request later and may still complete
|
|
# successfully. The stream block job continues to stream and will
|
|
# complete with an error.
|
|
#
|
|
# @enospc: same as @stop on ENOSPC, same as @report otherwise.
|
|
#
|
|
# @stop: for guest operations, stop the virtual machine; for jobs,
|
|
# pause the job
|
|
#
|
|
# @auto: inherit the error handling policy of the backend (since: 2.7)
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'enum': 'BlockdevOnError',
|
|
'data': ['report', 'ignore', 'enospc', 'stop', 'auto'] }
|
|
|
|
##
|
|
# @MirrorSyncMode:
|
|
#
|
|
# An enumeration of possible behaviors for the initial synchronization
|
|
# phase of storage mirroring.
|
|
#
|
|
# @top: copies data in the topmost image to the destination
|
|
#
|
|
# @full: copies data from all images to the destination
|
|
#
|
|
# @none: only copy data written from now on
|
|
#
|
|
# @incremental: only copy data described by the dirty bitmap.
|
|
# (since: 2.4)
|
|
#
|
|
# @bitmap: only copy data described by the dirty bitmap. (since: 4.2)
|
|
# Behavior on completion is determined by the BitmapSyncMode.
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'enum': 'MirrorSyncMode',
|
|
'data': ['top', 'full', 'none', 'incremental', 'bitmap'] }
|
|
|
|
##
|
|
# @BitmapSyncMode:
|
|
#
|
|
# An enumeration of possible behaviors for the synchronization of a
|
|
# bitmap when used for data copy operations.
|
|
#
|
|
# @on-success: The bitmap is only synced when the operation is
|
|
# successful. This is the behavior always used for 'INCREMENTAL'
|
|
# backups.
|
|
#
|
|
# @never: The bitmap is never synchronized with the operation, and is
|
|
# treated solely as a read-only manifest of blocks to copy.
|
|
#
|
|
# @always: The bitmap is always synchronized with the operation,
|
|
# regardless of whether or not the operation was successful.
|
|
#
|
|
# Since: 4.2
|
|
##
|
|
{ 'enum': 'BitmapSyncMode',
|
|
'data': ['on-success', 'never', 'always'] }
|
|
|
|
##
|
|
# @MirrorCopyMode:
|
|
#
|
|
# An enumeration whose values tell the mirror block job when to
|
|
# trigger writes to the target.
|
|
#
|
|
# @background: copy data in background only.
|
|
#
|
|
# @write-blocking: when data is written to the source, write it
|
|
# (synchronously) to the target as well. In addition, data is
|
|
# copied in background just like in @background mode.
|
|
#
|
|
# Since: 3.0
|
|
##
|
|
{ 'enum': 'MirrorCopyMode',
|
|
'data': ['background', 'write-blocking'] }
|
|
|
|
##
|
|
# @BlockJobInfo:
|
|
#
|
|
# Information about a long-running block device operation.
|
|
#
|
|
# @type: the job type ('stream' for image streaming)
|
|
#
|
|
# @device: The job identifier. Originally the device name but other
|
|
# values are allowed since QEMU 2.7
|
|
#
|
|
# @len: Estimated @offset value at the completion of the job. This
|
|
# value can arbitrarily change while the job is running, in both
|
|
# directions.
|
|
#
|
|
# @offset: Progress made until now. The unit is arbitrary and the
|
|
# value can only meaningfully be used for the ratio of @offset to
|
|
# @len. The value is monotonically increasing.
|
|
#
|
|
# @busy: false if the job is known to be in a quiescent state, with no
|
|
# pending I/O. (Since 1.3)
|
|
#
|
|
# @paused: whether the job is paused or, if @busy is true, will pause
|
|
# itself as soon as possible. (Since 1.3)
|
|
#
|
|
# @speed: the rate limit, bytes per second
|
|
#
|
|
# @io-status: the status of the job (since 1.3)
|
|
#
|
|
# @ready: true if the job may be completed (since 2.2)
|
|
#
|
|
# @status: Current job state/status (since 2.12)
|
|
#
|
|
# @auto-finalize: Job will finalize itself when PENDING, moving to the
|
|
# CONCLUDED state. (since 2.12)
|
|
#
|
|
# @auto-dismiss: Job will dismiss itself when CONCLUDED, moving to the
|
|
# NULL state and disappearing from the query list. (since 2.12)
|
|
#
|
|
# @error: Error information if the job did not complete successfully.
|
|
# Not set if the job completed successfully. (since 2.12.1)
|
|
#
|
|
# Since: 1.1
|
|
##
|
|
{ 'struct': 'BlockJobInfo',
|
|
'data': {'type': 'str', 'device': 'str', 'len': 'int',
|
|
'offset': 'int', 'busy': 'bool', 'paused': 'bool', 'speed': 'int',
|
|
'io-status': 'BlockDeviceIoStatus', 'ready': 'bool',
|
|
'status': 'JobStatus',
|
|
'auto-finalize': 'bool', 'auto-dismiss': 'bool',
|
|
'*error': 'str' } }
|
|
|
|
##
|
|
# @query-block-jobs:
|
|
#
|
|
# Return information about long-running block device operations.
|
|
#
|
|
# Returns: a list of @BlockJobInfo for each active block job
|
|
#
|
|
# Since: 1.1
|
|
##
|
|
{ 'command': 'query-block-jobs', 'returns': ['BlockJobInfo'],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block_resize:
|
|
#
|
|
# Resize a block image while a guest is running.
|
|
#
|
|
# Either @device or @node-name must be set but not both.
|
|
#
|
|
# @device: the name of the device to get the image resized
|
|
#
|
|
# @node-name: graph node name to get the image resized (Since 2.0)
|
|
#
|
|
# @size: new image size in bytes
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @device is not a valid block device, DeviceNotFound
|
|
#
|
|
# Since: 0.14
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block_resize",
|
|
# "arguments": { "device": "scratch", "size": 1073741824 } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block_resize',
|
|
'data': { '*device': 'str',
|
|
'*node-name': 'str',
|
|
'size': 'int' },
|
|
'coroutine': true,
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @NewImageMode:
|
|
#
|
|
# An enumeration that tells QEMU how to set the backing file path in a
|
|
# new image file.
|
|
#
|
|
# @existing: QEMU should look for an existing image file.
|
|
#
|
|
# @absolute-paths: QEMU should create a new image with absolute paths
|
|
# for the backing file. If there is no backing file available,
|
|
# the new image will not be backed either.
|
|
#
|
|
# Since: 1.1
|
|
##
|
|
{ 'enum': 'NewImageMode',
|
|
'data': [ 'existing', 'absolute-paths' ] }
|
|
|
|
##
|
|
# @BlockdevSnapshotSync:
|
|
#
|
|
# Either @device or @node-name must be set but not both.
|
|
#
|
|
# @device: the name of the device to take a snapshot of.
|
|
#
|
|
# @node-name: graph node name to generate the snapshot from (Since
|
|
# 2.0)
|
|
#
|
|
# @snapshot-file: the target of the new overlay image. If the file
|
|
# exists, or if it is a device, the overlay will be created in the
|
|
# existing file/device. Otherwise, a new file will be created.
|
|
#
|
|
# @snapshot-node-name: the graph node name of the new image (Since
|
|
# 2.0)
|
|
#
|
|
# @format: the format of the overlay image, default is 'qcow2'.
|
|
#
|
|
# @mode: whether and how QEMU should create a new image, default is
|
|
# 'absolute-paths'.
|
|
##
|
|
{ 'struct': 'BlockdevSnapshotSync',
|
|
'data': { '*device': 'str', '*node-name': 'str',
|
|
'snapshot-file': 'str', '*snapshot-node-name': 'str',
|
|
'*format': 'str', '*mode': 'NewImageMode' } }
|
|
|
|
##
|
|
# @BlockdevSnapshot:
|
|
#
|
|
# @node: device or node name that will have a snapshot taken.
|
|
#
|
|
# @overlay: reference to the existing block device that will become
|
|
# the overlay of @node, as part of taking the snapshot. It must
|
|
# not have a current backing file (this can be achieved by passing
|
|
# "backing": null to blockdev-add).
|
|
#
|
|
# Since: 2.5
|
|
##
|
|
{ 'struct': 'BlockdevSnapshot',
|
|
'data': { 'node': 'str', 'overlay': 'str' } }
|
|
|
|
##
|
|
# @BackupPerf:
|
|
#
|
|
# Optional parameters for backup. These parameters don't affect
|
|
# functionality, but may significantly affect performance.
|
|
#
|
|
# @use-copy-range: Use copy offloading. Default false.
|
|
#
|
|
# @max-workers: Maximum number of parallel requests for the sustained
|
|
# background copying process. Doesn't influence copy-before-write
|
|
# operations. Default 64.
|
|
#
|
|
# @max-chunk: Maximum request length for the sustained background
|
|
# copying process. Doesn't influence copy-before-write
|
|
# operations. 0 means unlimited. If max-chunk is non-zero then
|
|
# it should not be less than job cluster size which is calculated
|
|
# as maximum of target image cluster size and 64k. Default 0.
|
|
#
|
|
# Since: 6.0
|
|
##
|
|
{ 'struct': 'BackupPerf',
|
|
'data': { '*use-copy-range': 'bool',
|
|
'*max-workers': 'int', '*max-chunk': 'int64' } }
|
|
|
|
##
|
|
# @BackupCommon:
|
|
#
|
|
# @job-id: identifier for the newly-created block job. If omitted,
|
|
# the device name will be used. (Since 2.7)
|
|
#
|
|
# @device: the device name or node-name of a root node which should be
|
|
# copied.
|
|
#
|
|
# @sync: what parts of the disk image should be copied to the
|
|
# destination (all the disk, only the sectors allocated in the
|
|
# topmost image, from a dirty bitmap, or only new I/O).
|
|
#
|
|
# @speed: the maximum speed, in bytes per second. The default is 0,
|
|
# for unlimited.
|
|
#
|
|
# @bitmap: The name of a dirty bitmap to use. Must be present if sync
|
|
# is "bitmap" or "incremental". Can be present if sync is "full"
|
|
# or "top". Must not be present otherwise.
|
|
# (Since 2.4 (drive-backup), 3.1 (blockdev-backup))
|
|
#
|
|
# @bitmap-mode: Specifies the type of data the bitmap should contain
|
|
# after the operation concludes. Must be present if a bitmap was
|
|
# provided, Must NOT be present otherwise. (Since 4.2)
|
|
#
|
|
# @compress: true to compress data, if the target format supports it.
|
|
# (default: false) (since 2.8)
|
|
#
|
|
# @on-source-error: the action to take on an error on the source,
|
|
# default 'report'. 'stop' and 'enospc' can only be used if the
|
|
# block device supports io-status (see BlockInfo).
|
|
#
|
|
# @on-target-error: the action to take on an error on the target,
|
|
# default 'report' (no limitations, since this applies to a
|
|
# different block device than @device).
|
|
#
|
|
# @auto-finalize: When false, this job will wait in a PENDING state
|
|
# after it has finished its work, waiting for @block-job-finalize
|
|
# before making any block graph changes. When true, this job will
|
|
# automatically perform its abort or commit actions. Defaults to
|
|
# true. (Since 2.12)
|
|
#
|
|
# @auto-dismiss: When false, this job will wait in a CONCLUDED state
|
|
# after it has completely ceased all work, and awaits
|
|
# @block-job-dismiss. When true, this job will automatically
|
|
# disappear from the query list without user intervention.
|
|
# Defaults to true. (Since 2.12)
|
|
#
|
|
# @filter-node-name: the node name that should be assigned to the
|
|
# filter driver that the backup job inserts into the graph above
|
|
# node specified by @drive. If this option is not given, a node
|
|
# name is autogenerated. (Since: 4.2)
|
|
#
|
|
# @x-perf: Performance options. (Since 6.0)
|
|
#
|
|
# Features:
|
|
#
|
|
# @unstable: Member @x-perf is experimental.
|
|
#
|
|
# Note: @on-source-error and @on-target-error only affect background
|
|
# I/O. If an error occurs during a guest write request, the
|
|
# device's rerror/werror actions will be used.
|
|
#
|
|
# Since: 4.2
|
|
##
|
|
{ 'struct': 'BackupCommon',
|
|
'data': { '*job-id': 'str', 'device': 'str',
|
|
'sync': 'MirrorSyncMode', '*speed': 'int',
|
|
'*bitmap': 'str', '*bitmap-mode': 'BitmapSyncMode',
|
|
'*compress': 'bool',
|
|
'*on-source-error': 'BlockdevOnError',
|
|
'*on-target-error': 'BlockdevOnError',
|
|
'*auto-finalize': 'bool', '*auto-dismiss': 'bool',
|
|
'*filter-node-name': 'str',
|
|
'*x-perf': { 'type': 'BackupPerf',
|
|
'features': [ 'unstable' ] } } }
|
|
|
|
##
|
|
# @DriveBackup:
|
|
#
|
|
# @target: the target of the new image. If the file exists, or if it
|
|
# is a device, the existing file/device will be used as the new
|
|
# destination. If it does not exist, a new file will be created.
|
|
#
|
|
# @format: the format of the new destination, default is to probe if
|
|
# @mode is 'existing', else the format of the source
|
|
#
|
|
# @mode: whether and how QEMU should create a new image, default is
|
|
# 'absolute-paths'.
|
|
#
|
|
# Since: 1.6
|
|
##
|
|
{ 'struct': 'DriveBackup',
|
|
'base': 'BackupCommon',
|
|
'data': { 'target': 'str',
|
|
'*format': 'str',
|
|
'*mode': 'NewImageMode' } }
|
|
|
|
##
|
|
# @BlockdevBackup:
|
|
#
|
|
# @target: the device name or node-name of the backup target node.
|
|
#
|
|
# Since: 2.3
|
|
##
|
|
{ 'struct': 'BlockdevBackup',
|
|
'base': 'BackupCommon',
|
|
'data': { 'target': 'str' } }
|
|
|
|
##
|
|
# @blockdev-snapshot-sync:
|
|
#
|
|
# Takes a synchronous snapshot of a block device.
|
|
#
|
|
# For the arguments, see the documentation of BlockdevSnapshotSync.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @device is not a valid block device, DeviceNotFound
|
|
#
|
|
# Since: 0.14
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-snapshot-sync",
|
|
# "arguments": { "device": "ide-hd0",
|
|
# "snapshot-file":
|
|
# "/some/place/my-image",
|
|
# "format": "qcow2" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'blockdev-snapshot-sync',
|
|
'data': 'BlockdevSnapshotSync',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @blockdev-snapshot:
|
|
#
|
|
# Takes a snapshot of a block device.
|
|
#
|
|
# Take a snapshot, by installing 'node' as the backing image of
|
|
# 'overlay'. Additionally, if 'node' is associated with a block
|
|
# device, the block device changes to using 'overlay' as its new
|
|
# active image.
|
|
#
|
|
# For the arguments, see the documentation of BlockdevSnapshot.
|
|
#
|
|
# Features:
|
|
#
|
|
# @allow-write-only-overlay: If present, the check whether this
|
|
# operation is safe was relaxed so that it can be used to change
|
|
# backing file of a destination of a blockdev-mirror. (since 5.0)
|
|
#
|
|
# Since: 2.5
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-add",
|
|
# "arguments": { "driver": "qcow2",
|
|
# "node-name": "node1534",
|
|
# "file": { "driver": "file",
|
|
# "filename": "hd1.qcow2" },
|
|
# "backing": null } }
|
|
#
|
|
# <- { "return": {} }
|
|
#
|
|
# -> { "execute": "blockdev-snapshot",
|
|
# "arguments": { "node": "ide-hd0",
|
|
# "overlay": "node1534" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'blockdev-snapshot',
|
|
'data': 'BlockdevSnapshot',
|
|
'features': [ 'allow-write-only-overlay' ],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @change-backing-file:
|
|
#
|
|
# Change the backing file in the image file metadata. This does not
|
|
# cause QEMU to reopen the image file to reparse the backing filename
|
|
# (it may, however, perform a reopen to change permissions from r/o ->
|
|
# r/w -> r/o, if needed). The new backing file string is written into
|
|
# the image file metadata, and the QEMU internal strings are updated.
|
|
#
|
|
# @image-node-name: The name of the block driver state node of the
|
|
# image to modify. The "device" argument is used to verify
|
|
# "image-node-name" is in the chain described by "device".
|
|
#
|
|
# @device: The device name or node-name of the root node that owns
|
|
# image-node-name.
|
|
#
|
|
# @backing-file: The string to write as the backing file. This string
|
|
# is not validated, so care should be taken when specifying the
|
|
# string or the image chain may not be able to be reopened again.
|
|
#
|
|
# Returns:
|
|
# - Nothing on success
|
|
# - If "device" does not exist or cannot be determined,
|
|
# DeviceNotFound
|
|
#
|
|
# Since: 2.1
|
|
##
|
|
{ 'command': 'change-backing-file',
|
|
'data': { 'device': 'str', 'image-node-name': 'str',
|
|
'backing-file': 'str' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-commit:
|
|
#
|
|
# Live commit of data from overlay image nodes into backing nodes -
|
|
# i.e., writes data between 'top' and 'base' into 'base'.
|
|
#
|
|
# If top == base, that is an error. If top has no overlays on top of
|
|
# it, or if it is in use by a writer, the job will not be completed by
|
|
# itself. The user needs to complete the job with the
|
|
# block-job-complete command after getting the ready event. (Since
|
|
# 2.0)
|
|
#
|
|
# If the base image is smaller than top, then the base image will be
|
|
# resized to be the same size as top. If top is smaller than the base
|
|
# image, the base will not be truncated. If you want the base image
|
|
# size to match the size of the smaller top, you can safely truncate
|
|
# it yourself once the commit operation successfully completes.
|
|
#
|
|
# @job-id: identifier for the newly-created block job. If omitted,
|
|
# the device name will be used. (Since 2.7)
|
|
#
|
|
# @device: the device name or node-name of a root node
|
|
#
|
|
# @base-node: The node name of the backing image to write data into.
|
|
# If not specified, this is the deepest backing image.
|
|
# (since: 3.1)
|
|
#
|
|
# @base: Same as @base-node, except that it is a file name rather than
|
|
# a node name. This must be the exact filename string that was
|
|
# used to open the node; other strings, even if addressing the
|
|
# same file, are not accepted
|
|
#
|
|
# @top-node: The node name of the backing image within the image chain
|
|
# which contains the topmost data to be committed down. If not
|
|
# specified, this is the active layer. (since: 3.1)
|
|
#
|
|
# @top: Same as @top-node, except that it is a file name rather than a
|
|
# node name. This must be the exact filename string that was used
|
|
# to open the node; other strings, even if addressing the same
|
|
# file, are not accepted
|
|
#
|
|
# @backing-file: The backing file string to write into the overlay
|
|
# image of 'top'. If 'top' does not have an overlay image, or if
|
|
# 'top' is in use by a writer, specifying a backing file string is
|
|
# an error.
|
|
#
|
|
# This filename is not validated. If a pathname string is such
|
|
# that it cannot be resolved by QEMU, that means that subsequent
|
|
# QMP or HMP commands must use node-names for the image in
|
|
# question, as filename lookup methods will fail.
|
|
#
|
|
# If not specified, QEMU will automatically determine the backing
|
|
# file string to use, or error out if there is no obvious choice.
|
|
# Care should be taken when specifying the string, to specify a
|
|
# valid filename or protocol. (Since 2.1)
|
|
#
|
|
# @speed: the maximum speed, in bytes per second
|
|
#
|
|
# @on-error: the action to take on an error. 'ignore' means that the
|
|
# request should be retried. (default: report; Since: 5.0)
|
|
#
|
|
# @filter-node-name: the node name that should be assigned to the
|
|
# filter driver that the commit job inserts into the graph above
|
|
# @top. If this option is not given, a node name is
|
|
# autogenerated. (Since: 2.9)
|
|
#
|
|
# @auto-finalize: When false, this job will wait in a PENDING state
|
|
# after it has finished its work, waiting for @block-job-finalize
|
|
# before making any block graph changes. When true, this job will
|
|
# automatically perform its abort or commit actions. Defaults to
|
|
# true. (Since 3.1)
|
|
#
|
|
# @auto-dismiss: When false, this job will wait in a CONCLUDED state
|
|
# after it has completely ceased all work, and awaits
|
|
# @block-job-dismiss. When true, this job will automatically
|
|
# disappear from the query list without user intervention.
|
|
# Defaults to true. (Since 3.1)
|
|
#
|
|
# Features:
|
|
#
|
|
# @deprecated: Members @base and @top are deprecated. Use @base-node
|
|
# and @top-node instead.
|
|
#
|
|
# Returns:
|
|
# - Nothing on success
|
|
# - If @device does not exist, DeviceNotFound
|
|
# - Any other error returns a GenericError.
|
|
#
|
|
# Since: 1.3
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block-commit",
|
|
# "arguments": { "device": "virtio0",
|
|
# "top": "/tmp/snap1.qcow2" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block-commit',
|
|
'data': { '*job-id': 'str', 'device': 'str', '*base-node': 'str',
|
|
'*base': { 'type': 'str', 'features': [ 'deprecated' ] },
|
|
'*top-node': 'str',
|
|
'*top': { 'type': 'str', 'features': [ 'deprecated' ] },
|
|
'*backing-file': 'str', '*speed': 'int',
|
|
'*on-error': 'BlockdevOnError',
|
|
'*filter-node-name': 'str',
|
|
'*auto-finalize': 'bool', '*auto-dismiss': 'bool' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @drive-backup:
|
|
#
|
|
# Start a point-in-time copy of a block device to a new destination.
|
|
# The status of ongoing drive-backup operations can be checked with
|
|
# query-block-jobs where the BlockJobInfo.type field has the value
|
|
# 'backup'. The operation can be stopped before it has completed using
|
|
# the block-job-cancel command.
|
|
#
|
|
# Features:
|
|
#
|
|
# @deprecated: This command is deprecated. Use @blockdev-backup
|
|
# instead.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @device is not a valid block device, GenericError
|
|
#
|
|
# Since: 1.6
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "drive-backup",
|
|
# "arguments": { "device": "drive0",
|
|
# "sync": "full",
|
|
# "target": "backup.img" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'drive-backup', 'boxed': true,
|
|
'data': 'DriveBackup', 'features': ['deprecated'],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @blockdev-backup:
|
|
#
|
|
# Start a point-in-time copy of a block device to a new destination.
|
|
# The status of ongoing blockdev-backup operations can be checked with
|
|
# query-block-jobs where the BlockJobInfo.type field has the value
|
|
# 'backup'. The operation can be stopped before it has completed using
|
|
# the block-job-cancel command.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @device is not a valid block device, DeviceNotFound
|
|
#
|
|
# Since: 2.3
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-backup",
|
|
# "arguments": { "device": "src-id",
|
|
# "sync": "full",
|
|
# "target": "tgt-id" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'blockdev-backup', 'boxed': true,
|
|
'data': 'BlockdevBackup',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @query-named-block-nodes:
|
|
#
|
|
# Get the named block driver list
|
|
#
|
|
# @flat: Omit the nested data about backing image ("backing-image"
|
|
# key) if true. Default is false (Since 5.0)
|
|
#
|
|
# Returns: the list of BlockDeviceInfo
|
|
#
|
|
# Since: 2.0
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "query-named-block-nodes" }
|
|
# <- { "return": [ { "ro":false,
|
|
# "drv":"qcow2",
|
|
# "encrypted":false,
|
|
# "file":"disks/test.qcow2",
|
|
# "node-name": "my-node",
|
|
# "backing_file_depth":1,
|
|
# "detect_zeroes":"off",
|
|
# "bps":1000000,
|
|
# "bps_rd":0,
|
|
# "bps_wr":0,
|
|
# "iops":1000000,
|
|
# "iops_rd":0,
|
|
# "iops_wr":0,
|
|
# "bps_max": 8000000,
|
|
# "bps_rd_max": 0,
|
|
# "bps_wr_max": 0,
|
|
# "iops_max": 0,
|
|
# "iops_rd_max": 0,
|
|
# "iops_wr_max": 0,
|
|
# "iops_size": 0,
|
|
# "write_threshold": 0,
|
|
# "image":{
|
|
# "filename":"disks/test.qcow2",
|
|
# "format":"qcow2",
|
|
# "virtual-size":2048000,
|
|
# "backing_file":"base.qcow2",
|
|
# "full-backing-filename":"disks/base.qcow2",
|
|
# "backing-filename-format":"qcow2",
|
|
# "snapshots":[
|
|
# {
|
|
# "id": "1",
|
|
# "name": "snapshot1",
|
|
# "vm-state-size": 0,
|
|
# "date-sec": 10000200,
|
|
# "date-nsec": 12,
|
|
# "vm-clock-sec": 206,
|
|
# "vm-clock-nsec": 30
|
|
# }
|
|
# ],
|
|
# "backing-image":{
|
|
# "filename":"disks/base.qcow2",
|
|
# "format":"qcow2",
|
|
# "virtual-size":2048000
|
|
# }
|
|
# } } ] }
|
|
##
|
|
{ 'command': 'query-named-block-nodes',
|
|
'returns': [ 'BlockDeviceInfo' ],
|
|
'data': { '*flat': 'bool' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @XDbgBlockGraphNodeType:
|
|
#
|
|
# @block-backend: corresponds to BlockBackend
|
|
#
|
|
# @block-job: corresponds to BlockJob
|
|
#
|
|
# @block-driver: corresponds to BlockDriverState
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'enum': 'XDbgBlockGraphNodeType',
|
|
'data': [ 'block-backend', 'block-job', 'block-driver' ] }
|
|
|
|
##
|
|
# @XDbgBlockGraphNode:
|
|
#
|
|
# @id: Block graph node identifier. This @id is generated only for
|
|
# x-debug-query-block-graph and does not relate to any other
|
|
# identifiers in Qemu.
|
|
#
|
|
# @type: Type of graph node. Can be one of block-backend, block-job
|
|
# or block-driver-state.
|
|
#
|
|
# @name: Human readable name of the node. Corresponds to node-name
|
|
# for block-driver-state nodes; is not guaranteed to be unique in
|
|
# the whole graph (with block-jobs and block-backends).
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'struct': 'XDbgBlockGraphNode',
|
|
'data': { 'id': 'uint64', 'type': 'XDbgBlockGraphNodeType', 'name': 'str' } }
|
|
|
|
##
|
|
# @BlockPermission:
|
|
#
|
|
# Enum of base block permissions.
|
|
#
|
|
# @consistent-read: A user that has the "permission" of consistent
|
|
# reads is guaranteed that their view of the contents of the block
|
|
# device is complete and self-consistent, representing the
|
|
# contents of a disk at a specific point. For most block devices
|
|
# (including their backing files) this is true, but the property
|
|
# cannot be maintained in a few situations like for intermediate
|
|
# nodes of a commit block job.
|
|
#
|
|
# @write: This permission is required to change the visible disk
|
|
# contents.
|
|
#
|
|
# @write-unchanged: This permission (which is weaker than
|
|
# BLK_PERM_WRITE) is both enough and required for writes to the
|
|
# block node when the caller promises that the visible disk
|
|
# content doesn't change. As the BLK_PERM_WRITE permission is
|
|
# strictly stronger, either is sufficient to perform an unchanging
|
|
# write.
|
|
#
|
|
# @resize: This permission is required to change the size of a block
|
|
# node.
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'enum': 'BlockPermission',
|
|
'data': [ 'consistent-read', 'write', 'write-unchanged', 'resize' ] }
|
|
|
|
##
|
|
# @XDbgBlockGraphEdge:
|
|
#
|
|
# Block Graph edge description for x-debug-query-block-graph.
|
|
#
|
|
# @parent: parent id
|
|
#
|
|
# @child: child id
|
|
#
|
|
# @name: name of the relation (examples are 'file' and 'backing')
|
|
#
|
|
# @perm: granted permissions for the parent operating on the child
|
|
#
|
|
# @shared-perm: permissions that can still be granted to other users
|
|
# of the child while it is still attached to this parent
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'struct': 'XDbgBlockGraphEdge',
|
|
'data': { 'parent': 'uint64', 'child': 'uint64',
|
|
'name': 'str', 'perm': [ 'BlockPermission' ],
|
|
'shared-perm': [ 'BlockPermission' ] } }
|
|
|
|
##
|
|
# @XDbgBlockGraph:
|
|
#
|
|
# Block Graph - list of nodes and list of edges.
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'struct': 'XDbgBlockGraph',
|
|
'data': { 'nodes': ['XDbgBlockGraphNode'], 'edges': ['XDbgBlockGraphEdge'] } }
|
|
|
|
##
|
|
# @x-debug-query-block-graph:
|
|
#
|
|
# Get the block graph.
|
|
#
|
|
# Features:
|
|
#
|
|
# @unstable: This command is meant for debugging.
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'command': 'x-debug-query-block-graph', 'returns': 'XDbgBlockGraph',
|
|
'features': [ 'unstable' ],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @drive-mirror:
|
|
#
|
|
# Start mirroring a block device's writes to a new destination.
|
|
# target specifies the target of the new image. If the file exists,
|
|
# or if it is a device, it will be used as the new destination for
|
|
# writes. If it does not exist, a new file will be created. format
|
|
# specifies the format of the mirror image, default is to probe if
|
|
# mode='existing', else the format of the source.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @device is not a valid block device, GenericError
|
|
#
|
|
# Since: 1.3
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "drive-mirror",
|
|
# "arguments": { "device": "ide-hd0",
|
|
# "target": "/some/place/my-image",
|
|
# "sync": "full",
|
|
# "format": "qcow2" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'drive-mirror', 'boxed': true,
|
|
'data': 'DriveMirror',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @DriveMirror:
|
|
#
|
|
# A set of parameters describing drive mirror setup.
|
|
#
|
|
# @job-id: identifier for the newly-created block job. If omitted,
|
|
# the device name will be used. (Since 2.7)
|
|
#
|
|
# @device: the device name or node-name of a root node whose writes
|
|
# should be mirrored.
|
|
#
|
|
# @target: the target of the new image. If the file exists, or if it
|
|
# is a device, the existing file/device will be used as the new
|
|
# destination. If it does not exist, a new file will be created.
|
|
#
|
|
# @format: the format of the new destination, default is to probe if
|
|
# @mode is 'existing', else the format of the source
|
|
#
|
|
# @node-name: the new block driver state node name in the graph (Since
|
|
# 2.1)
|
|
#
|
|
# @replaces: with sync=full graph node name to be replaced by the new
|
|
# image when a whole image copy is done. This can be used to
|
|
# repair broken Quorum files. By default, @device is replaced,
|
|
# although implicitly created filters on it are kept. (Since 2.1)
|
|
#
|
|
# @mode: whether and how QEMU should create a new image, default is
|
|
# 'absolute-paths'.
|
|
#
|
|
# @speed: the maximum speed, in bytes per second
|
|
#
|
|
# @sync: what parts of the disk image should be copied to the
|
|
# destination (all the disk, only the sectors allocated in the
|
|
# topmost image, or only new I/O).
|
|
#
|
|
# @granularity: granularity of the dirty bitmap, default is 64K if the
|
|
# image format doesn't have clusters, 4K if the clusters are
|
|
# smaller than that, else the cluster size. Must be a power of 2
|
|
# between 512 and 64M (since 1.4).
|
|
#
|
|
# @buf-size: maximum amount of data in flight from source to target
|
|
# (since 1.4).
|
|
#
|
|
# @on-source-error: the action to take on an error on the source,
|
|
# default 'report'. 'stop' and 'enospc' can only be used if the
|
|
# block device supports io-status (see BlockInfo).
|
|
#
|
|
# @on-target-error: the action to take on an error on the target,
|
|
# default 'report' (no limitations, since this applies to a
|
|
# different block device than @device).
|
|
#
|
|
# @unmap: Whether to try to unmap target sectors where source has only
|
|
# zero. If true, and target unallocated sectors will read as
|
|
# zero, target image sectors will be unmapped; otherwise, zeroes
|
|
# will be written. Both will result in identical contents.
|
|
# Default is true. (Since 2.4)
|
|
#
|
|
# @copy-mode: when to copy data to the destination; defaults to
|
|
# 'background' (Since: 3.0)
|
|
#
|
|
# @auto-finalize: When false, this job will wait in a PENDING state
|
|
# after it has finished its work, waiting for @block-job-finalize
|
|
# before making any block graph changes. When true, this job will
|
|
# automatically perform its abort or commit actions. Defaults to
|
|
# true. (Since 3.1)
|
|
#
|
|
# @auto-dismiss: When false, this job will wait in a CONCLUDED state
|
|
# after it has completely ceased all work, and awaits
|
|
# @block-job-dismiss. When true, this job will automatically
|
|
# disappear from the query list without user intervention.
|
|
# Defaults to true. (Since 3.1)
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'struct': 'DriveMirror',
|
|
'data': { '*job-id': 'str', 'device': 'str', 'target': 'str',
|
|
'*format': 'str', '*node-name': 'str', '*replaces': 'str',
|
|
'sync': 'MirrorSyncMode', '*mode': 'NewImageMode',
|
|
'*speed': 'int', '*granularity': 'uint32',
|
|
'*buf-size': 'int', '*on-source-error': 'BlockdevOnError',
|
|
'*on-target-error': 'BlockdevOnError',
|
|
'*unmap': 'bool', '*copy-mode': 'MirrorCopyMode',
|
|
'*auto-finalize': 'bool', '*auto-dismiss': 'bool' } }
|
|
|
|
##
|
|
# @BlockDirtyBitmap:
|
|
#
|
|
# @node: name of device/node which the bitmap is tracking
|
|
#
|
|
# @name: name of the dirty bitmap
|
|
#
|
|
# Since: 2.4
|
|
##
|
|
{ 'struct': 'BlockDirtyBitmap',
|
|
'data': { 'node': 'str', 'name': 'str' } }
|
|
|
|
##
|
|
# @BlockDirtyBitmapAdd:
|
|
#
|
|
# @node: name of device/node which the bitmap is tracking
|
|
#
|
|
# @name: name of the dirty bitmap (must be less than 1024 bytes)
|
|
#
|
|
# @granularity: the bitmap granularity, default is 64k for
|
|
# block-dirty-bitmap-add
|
|
#
|
|
# @persistent: the bitmap is persistent, i.e. it will be saved to the
|
|
# corresponding block device image file on its close. For now
|
|
# only Qcow2 disks support persistent bitmaps. Default is false
|
|
# for block-dirty-bitmap-add. (Since: 2.10)
|
|
#
|
|
# @disabled: the bitmap is created in the disabled state, which means
|
|
# that it will not track drive changes. The bitmap may be enabled
|
|
# with block-dirty-bitmap-enable. Default is false. (Since: 4.0)
|
|
#
|
|
# Since: 2.4
|
|
##
|
|
{ 'struct': 'BlockDirtyBitmapAdd',
|
|
'data': { 'node': 'str', 'name': 'str', '*granularity': 'uint32',
|
|
'*persistent': 'bool', '*disabled': 'bool' } }
|
|
|
|
##
|
|
# @BlockDirtyBitmapOrStr:
|
|
#
|
|
# @local: name of the bitmap, attached to the same node as target
|
|
# bitmap.
|
|
#
|
|
# @external: bitmap with specified node
|
|
#
|
|
# Since: 4.1
|
|
##
|
|
{ 'alternate': 'BlockDirtyBitmapOrStr',
|
|
'data': { 'local': 'str',
|
|
'external': 'BlockDirtyBitmap' } }
|
|
|
|
##
|
|
# @BlockDirtyBitmapMerge:
|
|
#
|
|
# @node: name of device/node which the @target bitmap is tracking
|
|
#
|
|
# @target: name of the destination dirty bitmap
|
|
#
|
|
# @bitmaps: name(s) of the source dirty bitmap(s) at @node and/or
|
|
# fully specified BlockDirtyBitmap elements. The latter are
|
|
# supported since 4.1.
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'struct': 'BlockDirtyBitmapMerge',
|
|
'data': { 'node': 'str', 'target': 'str',
|
|
'bitmaps': ['BlockDirtyBitmapOrStr'] } }
|
|
|
|
##
|
|
# @block-dirty-bitmap-add:
|
|
#
|
|
# Create a dirty bitmap with a name on the node, and start tracking
|
|
# the writes.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @node is not a valid block device or node, DeviceNotFound
|
|
# - If @name is already taken, GenericError with an explanation
|
|
#
|
|
# Since: 2.4
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block-dirty-bitmap-add",
|
|
# "arguments": { "node": "drive0", "name": "bitmap0" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block-dirty-bitmap-add',
|
|
'data': 'BlockDirtyBitmapAdd',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-dirty-bitmap-remove:
|
|
#
|
|
# Stop write tracking and remove the dirty bitmap that was created
|
|
# with block-dirty-bitmap-add. If the bitmap is persistent, remove it
|
|
# from its storage too.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @node is not a valid block device or node, DeviceNotFound
|
|
# - If @name is not found, GenericError with an explanation
|
|
# - if @name is frozen by an operation, GenericError
|
|
#
|
|
# Since: 2.4
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block-dirty-bitmap-remove",
|
|
# "arguments": { "node": "drive0", "name": "bitmap0" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block-dirty-bitmap-remove',
|
|
'data': 'BlockDirtyBitmap',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-dirty-bitmap-clear:
|
|
#
|
|
# Clear (reset) a dirty bitmap on the device, so that an incremental
|
|
# backup from this point in time forward will only backup clusters
|
|
# modified after this clear operation.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @node is not a valid block device, DeviceNotFound
|
|
# - If @name is not found, GenericError with an explanation
|
|
#
|
|
# Since: 2.4
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block-dirty-bitmap-clear",
|
|
# "arguments": { "node": "drive0", "name": "bitmap0" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block-dirty-bitmap-clear',
|
|
'data': 'BlockDirtyBitmap',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-dirty-bitmap-enable:
|
|
#
|
|
# Enables a dirty bitmap so that it will begin tracking disk changes.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @node is not a valid block device, DeviceNotFound
|
|
# - If @name is not found, GenericError with an explanation
|
|
#
|
|
# Since: 4.0
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block-dirty-bitmap-enable",
|
|
# "arguments": { "node": "drive0", "name": "bitmap0" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block-dirty-bitmap-enable',
|
|
'data': 'BlockDirtyBitmap',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-dirty-bitmap-disable:
|
|
#
|
|
# Disables a dirty bitmap so that it will stop tracking disk changes.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @node is not a valid block device, DeviceNotFound
|
|
# - If @name is not found, GenericError with an explanation
|
|
#
|
|
# Since: 4.0
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block-dirty-bitmap-disable",
|
|
# "arguments": { "node": "drive0", "name": "bitmap0" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block-dirty-bitmap-disable',
|
|
'data': 'BlockDirtyBitmap',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-dirty-bitmap-merge:
|
|
#
|
|
# Merge dirty bitmaps listed in @bitmaps to the @target dirty bitmap.
|
|
# Dirty bitmaps in @bitmaps will be unchanged, except if it also
|
|
# appears as the @target bitmap. Any bits already set in @target will
|
|
# still be set after the merge, i.e., this operation does not clear
|
|
# the target. On error, @target is unchanged.
|
|
#
|
|
# The resulting bitmap will count as dirty any clusters that were
|
|
# dirty in any of the source bitmaps. This can be used to achieve
|
|
# backup checkpoints, or in simpler usages, to copy bitmaps.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @node is not a valid block device, DeviceNotFound
|
|
# - If any bitmap in @bitmaps or @target is not found,
|
|
# GenericError
|
|
# - If any of the bitmaps have different sizes or granularities,
|
|
# GenericError
|
|
#
|
|
# Since: 4.0
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block-dirty-bitmap-merge",
|
|
# "arguments": { "node": "drive0", "target": "bitmap0",
|
|
# "bitmaps": ["bitmap1"] } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block-dirty-bitmap-merge',
|
|
'data': 'BlockDirtyBitmapMerge',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @BlockDirtyBitmapSha256:
|
|
#
|
|
# SHA256 hash of dirty bitmap data
|
|
#
|
|
# @sha256: ASCII representation of SHA256 bitmap hash
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'struct': 'BlockDirtyBitmapSha256',
|
|
'data': {'sha256': 'str'} }
|
|
|
|
##
|
|
# @x-debug-block-dirty-bitmap-sha256:
|
|
#
|
|
# Get bitmap SHA256.
|
|
#
|
|
# Features:
|
|
#
|
|
# @unstable: This command is meant for debugging.
|
|
#
|
|
# Returns:
|
|
# - BlockDirtyBitmapSha256 on success
|
|
# - If @node is not a valid block device, DeviceNotFound
|
|
# - If @name is not found or if hashing has failed, GenericError
|
|
# with an explanation
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'command': 'x-debug-block-dirty-bitmap-sha256',
|
|
'data': 'BlockDirtyBitmap', 'returns': 'BlockDirtyBitmapSha256',
|
|
'features': [ 'unstable' ],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @blockdev-mirror:
|
|
#
|
|
# Start mirroring a block device's writes to a new destination.
|
|
#
|
|
# @job-id: identifier for the newly-created block job. If omitted,
|
|
# the device name will be used. (Since 2.7)
|
|
#
|
|
# @device: The device name or node-name of a root node whose writes
|
|
# should be mirrored.
|
|
#
|
|
# @target: the id or node-name of the block device to mirror to. This
|
|
# mustn't be attached to guest.
|
|
#
|
|
# @replaces: with sync=full graph node name to be replaced by the new
|
|
# image when a whole image copy is done. This can be used to
|
|
# repair broken Quorum files. By default, @device is replaced,
|
|
# although implicitly created filters on it are kept.
|
|
#
|
|
# @speed: the maximum speed, in bytes per second
|
|
#
|
|
# @sync: what parts of the disk image should be copied to the
|
|
# destination (all the disk, only the sectors allocated in the
|
|
# topmost image, or only new I/O).
|
|
#
|
|
# @granularity: granularity of the dirty bitmap, default is 64K if the
|
|
# image format doesn't have clusters, 4K if the clusters are
|
|
# smaller than that, else the cluster size. Must be a power of 2
|
|
# between 512 and 64M
|
|
#
|
|
# @buf-size: maximum amount of data in flight from source to target
|
|
#
|
|
# @on-source-error: the action to take on an error on the source,
|
|
# default 'report'. 'stop' and 'enospc' can only be used if the
|
|
# block device supports io-status (see BlockInfo).
|
|
#
|
|
# @on-target-error: the action to take on an error on the target,
|
|
# default 'report' (no limitations, since this applies to a
|
|
# different block device than @device).
|
|
#
|
|
# @filter-node-name: the node name that should be assigned to the
|
|
# filter driver that the mirror job inserts into the graph above
|
|
# @device. If this option is not given, a node name is
|
|
# autogenerated. (Since: 2.9)
|
|
#
|
|
# @copy-mode: when to copy data to the destination; defaults to
|
|
# 'background' (Since: 3.0)
|
|
#
|
|
# @auto-finalize: When false, this job will wait in a PENDING state
|
|
# after it has finished its work, waiting for @block-job-finalize
|
|
# before making any block graph changes. When true, this job will
|
|
# automatically perform its abort or commit actions. Defaults to
|
|
# true. (Since 3.1)
|
|
#
|
|
# @auto-dismiss: When false, this job will wait in a CONCLUDED state
|
|
# after it has completely ceased all work, and awaits
|
|
# @block-job-dismiss. When true, this job will automatically
|
|
# disappear from the query list without user intervention.
|
|
# Defaults to true. (Since 3.1)
|
|
#
|
|
# Returns: nothing on success.
|
|
#
|
|
# Since: 2.6
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-mirror",
|
|
# "arguments": { "device": "ide-hd0",
|
|
# "target": "target0",
|
|
# "sync": "full" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'blockdev-mirror',
|
|
'data': { '*job-id': 'str', 'device': 'str', 'target': 'str',
|
|
'*replaces': 'str',
|
|
'sync': 'MirrorSyncMode',
|
|
'*speed': 'int', '*granularity': 'uint32',
|
|
'*buf-size': 'int', '*on-source-error': 'BlockdevOnError',
|
|
'*on-target-error': 'BlockdevOnError',
|
|
'*filter-node-name': 'str',
|
|
'*copy-mode': 'MirrorCopyMode',
|
|
'*auto-finalize': 'bool', '*auto-dismiss': 'bool' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @BlockIOThrottle:
|
|
#
|
|
# A set of parameters describing block throttling.
|
|
#
|
|
# @device: Block device name
|
|
#
|
|
# @id: The name or QOM path of the guest device (since: 2.8)
|
|
#
|
|
# @bps: total throughput limit in bytes per second
|
|
#
|
|
# @bps_rd: read throughput limit in bytes per second
|
|
#
|
|
# @bps_wr: write throughput limit in bytes per second
|
|
#
|
|
# @iops: total I/O operations per second
|
|
#
|
|
# @iops_rd: read I/O operations per second
|
|
#
|
|
# @iops_wr: write I/O operations per second
|
|
#
|
|
# @bps_max: total throughput limit during bursts, in bytes (Since 1.7)
|
|
#
|
|
# @bps_rd_max: read throughput limit during bursts, in bytes (Since
|
|
# 1.7)
|
|
#
|
|
# @bps_wr_max: write throughput limit during bursts, in bytes (Since
|
|
# 1.7)
|
|
#
|
|
# @iops_max: total I/O operations per second during bursts, in bytes
|
|
# (Since 1.7)
|
|
#
|
|
# @iops_rd_max: read I/O operations per second during bursts, in bytes
|
|
# (Since 1.7)
|
|
#
|
|
# @iops_wr_max: write I/O operations per second during bursts, in
|
|
# bytes (Since 1.7)
|
|
#
|
|
# @bps_max_length: maximum length of the @bps_max burst period, in
|
|
# seconds. It must only be set if @bps_max is set as well.
|
|
# Defaults to 1. (Since 2.6)
|
|
#
|
|
# @bps_rd_max_length: maximum length of the @bps_rd_max burst period,
|
|
# in seconds. It must only be set if @bps_rd_max is set as well.
|
|
# Defaults to 1. (Since 2.6)
|
|
#
|
|
# @bps_wr_max_length: maximum length of the @bps_wr_max burst period,
|
|
# in seconds. It must only be set if @bps_wr_max is set as well.
|
|
# Defaults to 1. (Since 2.6)
|
|
#
|
|
# @iops_max_length: maximum length of the @iops burst period, in
|
|
# seconds. It must only be set if @iops_max is set as well.
|
|
# Defaults to 1. (Since 2.6)
|
|
#
|
|
# @iops_rd_max_length: maximum length of the @iops_rd_max burst
|
|
# period, in seconds. It must only be set if @iops_rd_max is set
|
|
# as well. Defaults to 1. (Since 2.6)
|
|
#
|
|
# @iops_wr_max_length: maximum length of the @iops_wr_max burst
|
|
# period, in seconds. It must only be set if @iops_wr_max is set
|
|
# as well. Defaults to 1. (Since 2.6)
|
|
#
|
|
# @iops_size: an I/O size in bytes (Since 1.7)
|
|
#
|
|
# @group: throttle group name (Since 2.4)
|
|
#
|
|
# Features:
|
|
#
|
|
# @deprecated: Member @device is deprecated. Use @id instead.
|
|
#
|
|
# Since: 1.1
|
|
##
|
|
{ 'struct': 'BlockIOThrottle',
|
|
'data': { '*device': { 'type': 'str', 'features': [ 'deprecated' ] },
|
|
'*id': 'str', 'bps': 'int', 'bps_rd': 'int',
|
|
'bps_wr': 'int', 'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int',
|
|
'*bps_max': 'int', '*bps_rd_max': 'int',
|
|
'*bps_wr_max': 'int', '*iops_max': 'int',
|
|
'*iops_rd_max': 'int', '*iops_wr_max': 'int',
|
|
'*bps_max_length': 'int', '*bps_rd_max_length': 'int',
|
|
'*bps_wr_max_length': 'int', '*iops_max_length': 'int',
|
|
'*iops_rd_max_length': 'int', '*iops_wr_max_length': 'int',
|
|
'*iops_size': 'int', '*group': 'str' } }
|
|
|
|
##
|
|
# @ThrottleLimits:
|
|
#
|
|
# Limit parameters for throttling. Since some limit combinations are
|
|
# illegal, limits should always be set in one transaction. All fields
|
|
# are optional. When setting limits, if a field is missing the
|
|
# current value is not changed.
|
|
#
|
|
# @iops-total: limit total I/O operations per second
|
|
#
|
|
# @iops-total-max: I/O operations burst
|
|
#
|
|
# @iops-total-max-length: length of the iops-total-max burst period,
|
|
# in seconds It must only be set if @iops-total-max is set as
|
|
# well.
|
|
#
|
|
# @iops-read: limit read operations per second
|
|
#
|
|
# @iops-read-max: I/O operations read burst
|
|
#
|
|
# @iops-read-max-length: length of the iops-read-max burst period, in
|
|
# seconds It must only be set if @iops-read-max is set as well.
|
|
#
|
|
# @iops-write: limit write operations per second
|
|
#
|
|
# @iops-write-max: I/O operations write burst
|
|
#
|
|
# @iops-write-max-length: length of the iops-write-max burst period,
|
|
# in seconds It must only be set if @iops-write-max is set as
|
|
# well.
|
|
#
|
|
# @bps-total: limit total bytes per second
|
|
#
|
|
# @bps-total-max: total bytes burst
|
|
#
|
|
# @bps-total-max-length: length of the bps-total-max burst period, in
|
|
# seconds. It must only be set if @bps-total-max is set as well.
|
|
#
|
|
# @bps-read: limit read bytes per second
|
|
#
|
|
# @bps-read-max: total bytes read burst
|
|
#
|
|
# @bps-read-max-length: length of the bps-read-max burst period, in
|
|
# seconds It must only be set if @bps-read-max is set as well.
|
|
#
|
|
# @bps-write: limit write bytes per second
|
|
#
|
|
# @bps-write-max: total bytes write burst
|
|
#
|
|
# @bps-write-max-length: length of the bps-write-max burst period, in
|
|
# seconds It must only be set if @bps-write-max is set as well.
|
|
#
|
|
# @iops-size: when limiting by iops max size of an I/O in bytes
|
|
#
|
|
# Since: 2.11
|
|
##
|
|
{ 'struct': 'ThrottleLimits',
|
|
'data': { '*iops-total' : 'int', '*iops-total-max' : 'int',
|
|
'*iops-total-max-length' : 'int', '*iops-read' : 'int',
|
|
'*iops-read-max' : 'int', '*iops-read-max-length' : 'int',
|
|
'*iops-write' : 'int', '*iops-write-max' : 'int',
|
|
'*iops-write-max-length' : 'int', '*bps-total' : 'int',
|
|
'*bps-total-max' : 'int', '*bps-total-max-length' : 'int',
|
|
'*bps-read' : 'int', '*bps-read-max' : 'int',
|
|
'*bps-read-max-length' : 'int', '*bps-write' : 'int',
|
|
'*bps-write-max' : 'int', '*bps-write-max-length' : 'int',
|
|
'*iops-size' : 'int' } }
|
|
|
|
##
|
|
# @ThrottleGroupProperties:
|
|
#
|
|
# Properties for throttle-group objects.
|
|
#
|
|
# @limits: limits to apply for this throttle group
|
|
#
|
|
# Features:
|
|
#
|
|
# @unstable: All members starting with x- are aliases for the same key
|
|
# without x- in the @limits object. This is not a stable
|
|
# interface and may be removed or changed incompatibly in the
|
|
# future. Use @limits for a supported stable interface.
|
|
#
|
|
# Since: 2.11
|
|
##
|
|
{ 'struct': 'ThrottleGroupProperties',
|
|
'data': { '*limits': 'ThrottleLimits',
|
|
'*x-iops-total': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-iops-total-max': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-iops-total-max-length': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-iops-read': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-iops-read-max': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-iops-read-max-length': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-iops-write': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-iops-write-max': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-iops-write-max-length': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-bps-total': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-bps-total-max': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-bps-total-max-length': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-bps-read': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-bps-read-max': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-bps-read-max-length': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-bps-write': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-bps-write-max': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-bps-write-max-length': { 'type': 'int',
|
|
'features': [ 'unstable' ] },
|
|
'*x-iops-size': { 'type': 'int',
|
|
'features': [ 'unstable' ] } } }
|
|
|
|
##
|
|
# @block-stream:
|
|
#
|
|
# Copy data from a backing file into a block device.
|
|
#
|
|
# The block streaming operation is performed in the background until
|
|
# the entire backing file has been copied. This command returns
|
|
# immediately once streaming has started. The status of ongoing block
|
|
# streaming operations can be checked with query-block-jobs. The
|
|
# operation can be stopped before it has completed using the
|
|
# block-job-cancel command.
|
|
#
|
|
# The node that receives the data is called the top image, can be
|
|
# located in any part of the chain (but always above the base image;
|
|
# see below) and can be specified using its device or node name.
|
|
# Earlier qemu versions only allowed 'device' to name the top level
|
|
# node; presence of the 'base-node' parameter during introspection can
|
|
# be used as a witness of the enhanced semantics of 'device'.
|
|
#
|
|
# If a base file is specified then sectors are not copied from that
|
|
# base file and its backing chain. This can be used to stream a
|
|
# subset of the backing file chain instead of flattening the entire
|
|
# image. When streaming completes the image file will have the base
|
|
# file as its backing file, unless that node was changed while the job
|
|
# was running. In that case, base's parent's backing (or filtered,
|
|
# whichever exists) child (i.e., base at the beginning of the job)
|
|
# will be the new backing file.
|
|
#
|
|
# On successful completion the image file is updated to drop the
|
|
# backing file and the BLOCK_JOB_COMPLETED event is emitted.
|
|
#
|
|
# In case @device is a filter node, block-stream modifies the first
|
|
# non-filter overlay node below it to point to the new backing node
|
|
# instead of modifying @device itself.
|
|
#
|
|
# @job-id: identifier for the newly-created block job. If omitted,
|
|
# the device name will be used. (Since 2.7)
|
|
#
|
|
# @device: the device or node name of the top image
|
|
#
|
|
# @base: the common backing file name. It cannot be set if @base-node
|
|
# or @bottom is also set.
|
|
#
|
|
# @base-node: the node name of the backing file. It cannot be set if
|
|
# @base or @bottom is also set. (Since 2.8)
|
|
#
|
|
# @bottom: the last node in the chain that should be streamed into
|
|
# top. It cannot be set if @base or @base-node is also set. It
|
|
# cannot be filter node. (Since 6.0)
|
|
#
|
|
# @backing-file: The backing file string to write into the top image.
|
|
# This filename is not validated.
|
|
#
|
|
# If a pathname string is such that it cannot be resolved by QEMU,
|
|
# that means that subsequent QMP or HMP commands must use
|
|
# node-names for the image in question, as filename lookup methods
|
|
# will fail.
|
|
#
|
|
# If not specified, QEMU will automatically determine the backing
|
|
# file string to use, or error out if there is no obvious choice.
|
|
# Care should be taken when specifying the string, to specify a
|
|
# valid filename or protocol. (Since 2.1)
|
|
#
|
|
# @speed: the maximum speed, in bytes per second
|
|
#
|
|
# @on-error: the action to take on an error (default report). 'stop'
|
|
# and 'enospc' can only be used if the block device supports
|
|
# io-status (see BlockInfo). (Since 1.3)
|
|
#
|
|
# @filter-node-name: the node name that should be assigned to the
|
|
# filter driver that the stream job inserts into the graph above
|
|
# @device. If this option is not given, a node name is
|
|
# autogenerated. (Since: 6.0)
|
|
#
|
|
# @auto-finalize: When false, this job will wait in a PENDING state
|
|
# after it has finished its work, waiting for @block-job-finalize
|
|
# before making any block graph changes. When true, this job will
|
|
# automatically perform its abort or commit actions. Defaults to
|
|
# true. (Since 3.1)
|
|
#
|
|
# @auto-dismiss: When false, this job will wait in a CONCLUDED state
|
|
# after it has completely ceased all work, and awaits
|
|
# @block-job-dismiss. When true, this job will automatically
|
|
# disappear from the query list without user intervention.
|
|
# Defaults to true. (Since 3.1)
|
|
#
|
|
# Returns:
|
|
# - Nothing on success.
|
|
# - If @device does not exist, DeviceNotFound.
|
|
#
|
|
# Since: 1.1
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block-stream",
|
|
# "arguments": { "device": "virtio0",
|
|
# "base": "/tmp/master.qcow2" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block-stream',
|
|
'data': { '*job-id': 'str', 'device': 'str', '*base': 'str',
|
|
'*base-node': 'str', '*backing-file': 'str', '*bottom': 'str',
|
|
'*speed': 'int', '*on-error': 'BlockdevOnError',
|
|
'*filter-node-name': 'str',
|
|
'*auto-finalize': 'bool', '*auto-dismiss': 'bool' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-job-set-speed:
|
|
#
|
|
# Set maximum speed for a background block operation.
|
|
#
|
|
# This command can only be issued when there is an active block job.
|
|
#
|
|
# Throttling can be disabled by setting the speed to 0.
|
|
#
|
|
# @device: The job identifier. This used to be a device name (hence
|
|
# the name of the parameter), but since QEMU 2.7 it can have other
|
|
# values.
|
|
#
|
|
# @speed: the maximum speed, in bytes per second, or 0 for unlimited.
|
|
# Defaults to 0.
|
|
#
|
|
# Returns:
|
|
# - Nothing on success
|
|
# - If no background operation is active on this device,
|
|
# DeviceNotActive
|
|
#
|
|
# Since: 1.1
|
|
##
|
|
{ 'command': 'block-job-set-speed',
|
|
'data': { 'device': 'str', 'speed': 'int' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-job-cancel:
|
|
#
|
|
# Stop an active background block operation.
|
|
#
|
|
# This command returns immediately after marking the active background
|
|
# block operation for cancellation. It is an error to call this
|
|
# command if no operation is in progress.
|
|
#
|
|
# The operation will cancel as soon as possible and then emit the
|
|
# BLOCK_JOB_CANCELLED event. Before that happens the job is still
|
|
# visible when enumerated using query-block-jobs.
|
|
#
|
|
# Note that if you issue 'block-job-cancel' after 'drive-mirror' has
|
|
# indicated (via the event BLOCK_JOB_READY) that the source and
|
|
# destination are synchronized, then the event triggered by this
|
|
# command changes to BLOCK_JOB_COMPLETED, to indicate that the
|
|
# mirroring has ended and the destination now has a point-in-time copy
|
|
# tied to the time of the cancellation.
|
|
#
|
|
# For streaming, the image file retains its backing file unless the
|
|
# streaming operation happens to complete just as it is being
|
|
# cancelled. A new streaming operation can be started at a later time
|
|
# to finish copying all data from the backing file.
|
|
#
|
|
# @device: The job identifier. This used to be a device name (hence
|
|
# the name of the parameter), but since QEMU 2.7 it can have other
|
|
# values.
|
|
#
|
|
# @force: If true, and the job has already emitted the event
|
|
# BLOCK_JOB_READY, abandon the job immediately (even if it is
|
|
# paused) instead of waiting for the destination to complete its
|
|
# final synchronization (since 1.3)
|
|
#
|
|
# Returns:
|
|
# - Nothing on success
|
|
# - If no background operation is active on this device,
|
|
# DeviceNotActive
|
|
#
|
|
# Since: 1.1
|
|
##
|
|
{ 'command': 'block-job-cancel', 'data': { 'device': 'str', '*force': 'bool' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-job-pause:
|
|
#
|
|
# Pause an active background block operation.
|
|
#
|
|
# This command returns immediately after marking the active background
|
|
# block operation for pausing. It is an error to call this command if
|
|
# no operation is in progress or if the job is already paused.
|
|
#
|
|
# The operation will pause as soon as possible. No event is emitted
|
|
# when the operation is actually paused. Cancelling a paused job
|
|
# automatically resumes it.
|
|
#
|
|
# @device: The job identifier. This used to be a device name (hence
|
|
# the name of the parameter), but since QEMU 2.7 it can have other
|
|
# values.
|
|
#
|
|
# Returns:
|
|
# - Nothing on success
|
|
# - If no background operation is active on this device,
|
|
# DeviceNotActive
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'command': 'block-job-pause', 'data': { 'device': 'str' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-job-resume:
|
|
#
|
|
# Resume an active background block operation.
|
|
#
|
|
# This command returns immediately after resuming a paused background
|
|
# block operation. It is an error to call this command if no
|
|
# operation is in progress or if the job is not paused.
|
|
#
|
|
# This command also clears the error status of the job.
|
|
#
|
|
# @device: The job identifier. This used to be a device name (hence
|
|
# the name of the parameter), but since QEMU 2.7 it can have other
|
|
# values.
|
|
#
|
|
# Returns:
|
|
# - Nothing on success
|
|
# - If no background operation is active on this device,
|
|
# DeviceNotActive
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'command': 'block-job-resume', 'data': { 'device': 'str' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-job-complete:
|
|
#
|
|
# Manually trigger completion of an active background block operation.
|
|
# This is supported for drive mirroring, where it also switches the
|
|
# device to write to the target path only. The ability to complete is
|
|
# signaled with a BLOCK_JOB_READY event.
|
|
#
|
|
# This command completes an active background block operation
|
|
# synchronously. The ordering of this command's return with the
|
|
# BLOCK_JOB_COMPLETED event is not defined. Note that if an I/O error
|
|
# occurs during the processing of this command: 1) the command itself
|
|
# will fail; 2) the error will be processed according to the
|
|
# rerror/werror arguments that were specified when starting the
|
|
# operation.
|
|
#
|
|
# A cancelled or paused job cannot be completed.
|
|
#
|
|
# @device: The job identifier. This used to be a device name (hence
|
|
# the name of the parameter), but since QEMU 2.7 it can have other
|
|
# values.
|
|
#
|
|
# Returns:
|
|
# - Nothing on success
|
|
# - If no background operation is active on this device,
|
|
# DeviceNotActive
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'command': 'block-job-complete', 'data': { 'device': 'str' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-job-dismiss:
|
|
#
|
|
# For jobs that have already concluded, remove them from the
|
|
# block-job-query list. This command only needs to be run for jobs
|
|
# which were started with QEMU 2.12+ job lifetime management
|
|
# semantics.
|
|
#
|
|
# This command will refuse to operate on any job that has not yet
|
|
# reached its terminal state, JOB_STATUS_CONCLUDED. For jobs that make
|
|
# use of the BLOCK_JOB_READY event, block-job-cancel or
|
|
# block-job-complete will still need to be used as appropriate.
|
|
#
|
|
# @id: The job identifier.
|
|
#
|
|
# Returns: Nothing on success
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'command': 'block-job-dismiss', 'data': { 'id': 'str' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @block-job-finalize:
|
|
#
|
|
# Once a job that has manual=true reaches the pending state, it can be
|
|
# instructed to finalize any graph changes and do any necessary
|
|
# cleanup via this command. For jobs in a transaction, instructing
|
|
# one job to finalize will force ALL jobs in the transaction to
|
|
# finalize, so it is only necessary to instruct a single member job to
|
|
# finalize.
|
|
#
|
|
# @id: The job identifier.
|
|
#
|
|
# Returns: Nothing on success
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'command': 'block-job-finalize', 'data': { 'id': 'str' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @BlockdevDiscardOptions:
|
|
#
|
|
# Determines how to handle discard requests.
|
|
#
|
|
# @ignore: Ignore the request
|
|
#
|
|
# @unmap: Forward as an unmap request
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'BlockdevDiscardOptions',
|
|
'data': [ 'ignore', 'unmap' ] }
|
|
|
|
##
|
|
# @BlockdevDetectZeroesOptions:
|
|
#
|
|
# Describes the operation mode for the automatic conversion of plain
|
|
# zero writes by the OS to driver specific optimized zero write
|
|
# commands.
|
|
#
|
|
# @off: Disabled (default)
|
|
#
|
|
# @on: Enabled
|
|
#
|
|
# @unmap: Enabled and even try to unmap blocks if possible. This
|
|
# requires also that @BlockdevDiscardOptions is set to unmap for
|
|
# this device.
|
|
#
|
|
# Since: 2.1
|
|
##
|
|
{ 'enum': 'BlockdevDetectZeroesOptions',
|
|
'data': [ 'off', 'on', 'unmap' ] }
|
|
|
|
##
|
|
# @BlockdevAioOptions:
|
|
#
|
|
# Selects the AIO backend to handle I/O requests
|
|
#
|
|
# @threads: Use qemu's thread pool
|
|
#
|
|
# @native: Use native AIO backend (only Linux and Windows)
|
|
#
|
|
# @io_uring: Use linux io_uring (since 5.0)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'BlockdevAioOptions',
|
|
'data': [ 'threads', 'native',
|
|
{ 'name': 'io_uring', 'if': 'CONFIG_LINUX_IO_URING' } ] }
|
|
|
|
##
|
|
# @BlockdevCacheOptions:
|
|
#
|
|
# Includes cache-related options for block devices
|
|
#
|
|
# @direct: enables use of O_DIRECT (bypass the host page cache;
|
|
# default: false)
|
|
#
|
|
# @no-flush: ignore any flush requests for the device (default: false)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevCacheOptions',
|
|
'data': { '*direct': 'bool',
|
|
'*no-flush': 'bool' } }
|
|
|
|
##
|
|
# @BlockdevDriver:
|
|
#
|
|
# Drivers that are supported in block device operations.
|
|
#
|
|
# @throttle: Since 2.11
|
|
#
|
|
# @nvme: Since 2.12
|
|
#
|
|
# @copy-on-read: Since 3.0
|
|
#
|
|
# @blklogwrites: Since 3.0
|
|
#
|
|
# @blkreplay: Since 4.2
|
|
#
|
|
# @compress: Since 5.0
|
|
#
|
|
# @copy-before-write: Since 6.2
|
|
#
|
|
# @snapshot-access: Since 7.0
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'BlockdevDriver',
|
|
'data': [ 'blkdebug', 'blklogwrites', 'blkreplay', 'blkverify', 'bochs',
|
|
'cloop', 'compress', 'copy-before-write', 'copy-on-read', 'dmg',
|
|
'file', 'snapshot-access', 'ftp', 'ftps', 'gluster',
|
|
{'name': 'host_cdrom', 'if': 'HAVE_HOST_BLOCK_DEVICE' },
|
|
{'name': 'host_device', 'if': 'HAVE_HOST_BLOCK_DEVICE' },
|
|
'http', 'https',
|
|
{ 'name': 'io_uring', 'if': 'CONFIG_BLKIO' },
|
|
'iscsi',
|
|
'luks', 'nbd', 'nfs', 'null-aio', 'null-co', 'nvme',
|
|
{ 'name': 'nvme-io_uring', 'if': 'CONFIG_BLKIO' },
|
|
'parallels', 'preallocate', 'qcow', 'qcow2', 'qed', 'quorum',
|
|
'raw', 'rbd',
|
|
{ 'name': 'replication', 'if': 'CONFIG_REPLICATION' },
|
|
'ssh', 'throttle', 'vdi', 'vhdx',
|
|
{ 'name': 'virtio-blk-vfio-pci', 'if': 'CONFIG_BLKIO' },
|
|
{ 'name': 'virtio-blk-vhost-user', 'if': 'CONFIG_BLKIO' },
|
|
{ 'name': 'virtio-blk-vhost-vdpa', 'if': 'CONFIG_BLKIO' },
|
|
'vmdk', 'vpc', 'vvfat' ] }
|
|
|
|
##
|
|
# @BlockdevOptionsFile:
|
|
#
|
|
# Driver specific block device options for the file backend.
|
|
#
|
|
# @filename: path to the image file
|
|
#
|
|
# @pr-manager: the id for the object that will handle persistent
|
|
# reservations for this device (default: none, forward the
|
|
# commands via SG_IO; since 2.11)
|
|
#
|
|
# @aio: AIO backend (default: threads) (since: 2.8)
|
|
#
|
|
# @aio-max-batch: maximum number of requests to batch together into a
|
|
# single submission in the AIO backend. The smallest value
|
|
# between this and the aio-max-batch value of the IOThread object
|
|
# is chosen. 0 means that the AIO backend will handle it
|
|
# automatically. (default: 0, since 6.2)
|
|
#
|
|
# @locking: whether to enable file locking. If set to 'auto', only
|
|
# enable when Open File Descriptor (OFD) locking API is available
|
|
# (default: auto, since 2.10)
|
|
#
|
|
# @drop-cache: invalidate page cache during live migration. This
|
|
# prevents stale data on the migration destination with
|
|
# cache.direct=off. Currently only supported on Linux hosts.
|
|
# (default: on, since: 4.0)
|
|
#
|
|
# @x-check-cache-dropped: whether to check that page cache was dropped
|
|
# on live migration. May cause noticeable delays if the image
|
|
# file is large, do not use in production. (default: off)
|
|
# (since: 3.0)
|
|
#
|
|
# Features:
|
|
#
|
|
# @dynamic-auto-read-only: If present, enabled auto-read-only means
|
|
# that the driver will open the image read-only at first,
|
|
# dynamically reopen the image file read-write when the first
|
|
# writer is attached to the node and reopen read-only when the
|
|
# last writer is detached. This allows giving QEMU write
|
|
# permissions only on demand when an operation actually needs
|
|
# write access.
|
|
#
|
|
# @unstable: Member x-check-cache-dropped is meant for debugging.
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsFile',
|
|
'data': { 'filename': 'str',
|
|
'*pr-manager': 'str',
|
|
'*locking': 'OnOffAuto',
|
|
'*aio': 'BlockdevAioOptions',
|
|
'*aio-max-batch': 'int',
|
|
'*drop-cache': {'type': 'bool',
|
|
'if': 'CONFIG_LINUX'},
|
|
'*x-check-cache-dropped': { 'type': 'bool',
|
|
'features': [ 'unstable' ] } },
|
|
'features': [ { 'name': 'dynamic-auto-read-only',
|
|
'if': 'CONFIG_POSIX' } ] }
|
|
|
|
##
|
|
# @BlockdevOptionsNull:
|
|
#
|
|
# Driver specific block device options for the null backend.
|
|
#
|
|
# @size: size of the device in bytes.
|
|
#
|
|
# @latency-ns: emulated latency (in nanoseconds) in processing
|
|
# requests. Default to zero which completes requests immediately.
|
|
# (Since 2.4)
|
|
#
|
|
# @read-zeroes: if true, reads from the device produce zeroes; if
|
|
# false, the buffer is left unchanged.
|
|
# (default: false; since: 4.1)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsNull',
|
|
'data': { '*size': 'int', '*latency-ns': 'uint64', '*read-zeroes': 'bool' } }
|
|
|
|
##
|
|
# @BlockdevOptionsNVMe:
|
|
#
|
|
# Driver specific block device options for the NVMe backend.
|
|
#
|
|
# @device: PCI controller address of the NVMe device in format
|
|
# hhhh:bb:ss.f (host:bus:slot.function)
|
|
#
|
|
# @namespace: namespace number of the device, starting from 1.
|
|
#
|
|
# Note that the PCI @device must have been unbound from any host
|
|
# kernel driver before instructing QEMU to add the blockdev.
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevOptionsNVMe',
|
|
'data': { 'device': 'str', 'namespace': 'int' } }
|
|
|
|
##
|
|
# @BlockdevOptionsVVFAT:
|
|
#
|
|
# Driver specific block device options for the vvfat protocol.
|
|
#
|
|
# @dir: directory to be exported as FAT image
|
|
#
|
|
# @fat-type: FAT type: 12, 16 or 32
|
|
#
|
|
# @floppy: whether to export a floppy image (true) or partitioned hard
|
|
# disk (false; default)
|
|
#
|
|
# @label: set the volume label, limited to 11 bytes. FAT16 and FAT32
|
|
# traditionally have some restrictions on labels, which are
|
|
# ignored by most operating systems. Defaults to "QEMU VVFAT".
|
|
# (since 2.4)
|
|
#
|
|
# @rw: whether to allow write operations (default: false)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsVVFAT',
|
|
'data': { 'dir': 'str', '*fat-type': 'int', '*floppy': 'bool',
|
|
'*label': 'str', '*rw': 'bool' } }
|
|
|
|
##
|
|
# @BlockdevOptionsGenericFormat:
|
|
#
|
|
# Driver specific block device options for image format that have no
|
|
# option besides their data source.
|
|
#
|
|
# @file: reference to or definition of the data source block device
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsGenericFormat',
|
|
'data': { 'file': 'BlockdevRef' } }
|
|
|
|
##
|
|
# @BlockdevOptionsLUKS:
|
|
#
|
|
# Driver specific block device options for LUKS.
|
|
#
|
|
# @key-secret: the ID of a QCryptoSecret object providing the
|
|
# decryption key (since 2.6). Mandatory except when doing a
|
|
# metadata-only probe of the image.
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsLUKS',
|
|
'base': 'BlockdevOptionsGenericFormat',
|
|
'data': { '*key-secret': 'str' } }
|
|
|
|
##
|
|
# @BlockdevOptionsGenericCOWFormat:
|
|
#
|
|
# Driver specific block device options for image format that have no
|
|
# option besides their data source and an optional backing file.
|
|
#
|
|
# @backing: reference to or definition of the backing file block
|
|
# device, null disables the backing file entirely. Defaults to
|
|
# the backing file stored the image file.
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsGenericCOWFormat',
|
|
'base': 'BlockdevOptionsGenericFormat',
|
|
'data': { '*backing': 'BlockdevRefOrNull' } }
|
|
|
|
##
|
|
# @Qcow2OverlapCheckMode:
|
|
#
|
|
# General overlap check modes.
|
|
#
|
|
# @none: Do not perform any checks
|
|
#
|
|
# @constant: Perform only checks which can be done in constant time
|
|
# and without reading anything from disk
|
|
#
|
|
# @cached: Perform only checks which can be done without reading
|
|
# anything from disk
|
|
#
|
|
# @all: Perform all available overlap checks
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'Qcow2OverlapCheckMode',
|
|
'data': [ 'none', 'constant', 'cached', 'all' ] }
|
|
|
|
##
|
|
# @Qcow2OverlapCheckFlags:
|
|
#
|
|
# Structure of flags for each metadata structure. Setting a field to
|
|
# 'true' makes qemu guard that structure against unintended
|
|
# overwriting. The default value is chosen according to the template
|
|
# given.
|
|
#
|
|
# @template: Specifies a template mode which can be adjusted using the
|
|
# other flags, defaults to 'cached'
|
|
#
|
|
# @bitmap-directory: since 3.0
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'Qcow2OverlapCheckFlags',
|
|
'data': { '*template': 'Qcow2OverlapCheckMode',
|
|
'*main-header': 'bool',
|
|
'*active-l1': 'bool',
|
|
'*active-l2': 'bool',
|
|
'*refcount-table': 'bool',
|
|
'*refcount-block': 'bool',
|
|
'*snapshot-table': 'bool',
|
|
'*inactive-l1': 'bool',
|
|
'*inactive-l2': 'bool',
|
|
'*bitmap-directory': 'bool' } }
|
|
|
|
##
|
|
# @Qcow2OverlapChecks:
|
|
#
|
|
# Specifies which metadata structures should be guarded against
|
|
# unintended overwriting.
|
|
#
|
|
# @flags: set of flags for separate specification of each metadata
|
|
# structure type
|
|
#
|
|
# @mode: named mode which chooses a specific set of flags
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'alternate': 'Qcow2OverlapChecks',
|
|
'data': { 'flags': 'Qcow2OverlapCheckFlags',
|
|
'mode': 'Qcow2OverlapCheckMode' } }
|
|
|
|
##
|
|
# @BlockdevQcowEncryptionFormat:
|
|
#
|
|
# @aes: AES-CBC with plain64 initialization vectors
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'enum': 'BlockdevQcowEncryptionFormat',
|
|
'data': [ 'aes' ] }
|
|
|
|
##
|
|
# @BlockdevQcowEncryption:
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'union': 'BlockdevQcowEncryption',
|
|
'base': { 'format': 'BlockdevQcowEncryptionFormat' },
|
|
'discriminator': 'format',
|
|
'data': { 'aes': 'QCryptoBlockOptionsQCow' } }
|
|
|
|
##
|
|
# @BlockdevOptionsQcow:
|
|
#
|
|
# Driver specific block device options for qcow.
|
|
#
|
|
# @encrypt: Image decryption options. Mandatory for encrypted images,
|
|
# except when doing a metadata-only probe of the image.
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'struct': 'BlockdevOptionsQcow',
|
|
'base': 'BlockdevOptionsGenericCOWFormat',
|
|
'data': { '*encrypt': 'BlockdevQcowEncryption' } }
|
|
|
|
##
|
|
# @BlockdevQcow2EncryptionFormat:
|
|
#
|
|
# @aes: AES-CBC with plain64 initialization vectors
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'enum': 'BlockdevQcow2EncryptionFormat',
|
|
'data': [ 'aes', 'luks' ] }
|
|
|
|
##
|
|
# @BlockdevQcow2Encryption:
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'union': 'BlockdevQcow2Encryption',
|
|
'base': { 'format': 'BlockdevQcow2EncryptionFormat' },
|
|
'discriminator': 'format',
|
|
'data': { 'aes': 'QCryptoBlockOptionsQCow',
|
|
'luks': 'QCryptoBlockOptionsLUKS'} }
|
|
|
|
##
|
|
# @BlockdevOptionsPreallocate:
|
|
#
|
|
# Filter driver intended to be inserted between format and protocol
|
|
# node and do preallocation in protocol node on write.
|
|
#
|
|
# @prealloc-align: on preallocation, align file length to this number,
|
|
# default 1048576 (1M)
|
|
#
|
|
# @prealloc-size: how much to preallocate, default 134217728 (128M)
|
|
#
|
|
# Since: 6.0
|
|
##
|
|
{ 'struct': 'BlockdevOptionsPreallocate',
|
|
'base': 'BlockdevOptionsGenericFormat',
|
|
'data': { '*prealloc-align': 'int', '*prealloc-size': 'int' } }
|
|
|
|
##
|
|
# @BlockdevOptionsQcow2:
|
|
#
|
|
# Driver specific block device options for qcow2.
|
|
#
|
|
# @lazy-refcounts: whether to enable the lazy refcounts feature
|
|
# (default is taken from the image file)
|
|
#
|
|
# @pass-discard-request: whether discard requests to the qcow2 device
|
|
# should be forwarded to the data source
|
|
#
|
|
# @pass-discard-snapshot: whether discard requests for the data source
|
|
# should be issued when a snapshot operation (e.g. deleting a
|
|
# snapshot) frees clusters in the qcow2 file
|
|
#
|
|
# @pass-discard-other: whether discard requests for the data source
|
|
# should be issued on other occasions where a cluster gets freed
|
|
#
|
|
# @discard-no-unref: when enabled, discards from the guest will not
|
|
# cause cluster allocations to be relinquished. This prevents
|
|
# qcow2 fragmentation that would be caused by such discards.
|
|
# Besides potential performance degradation, such fragmentation
|
|
# can lead to increased allocation of clusters past the end of the
|
|
# image file, resulting in image files whose file length can grow
|
|
# much larger than their guest disk size would suggest. If image
|
|
# file length is of concern (e.g. when storing qcow2 images
|
|
# directly on block devices), you should consider enabling this
|
|
# option. (since 8.1)
|
|
#
|
|
# @overlap-check: which overlap checks to perform for writes to the
|
|
# image, defaults to 'cached' (since 2.2)
|
|
#
|
|
# @cache-size: the maximum total size of the L2 table and refcount
|
|
# block caches in bytes (since 2.2)
|
|
#
|
|
# @l2-cache-size: the maximum size of the L2 table cache in bytes
|
|
# (since 2.2)
|
|
#
|
|
# @l2-cache-entry-size: the size of each entry in the L2 cache in
|
|
# bytes. It must be a power of two between 512 and the cluster
|
|
# size. The default value is the cluster size (since 2.12)
|
|
#
|
|
# @refcount-cache-size: the maximum size of the refcount block cache
|
|
# in bytes (since 2.2)
|
|
#
|
|
# @cache-clean-interval: clean unused entries in the L2 and refcount
|
|
# caches. The interval is in seconds. The default value is 600
|
|
# on supporting platforms, and 0 on other platforms. 0 disables
|
|
# this feature. (since 2.5)
|
|
#
|
|
# @encrypt: Image decryption options. Mandatory for encrypted images,
|
|
# except when doing a metadata-only probe of the image. (since
|
|
# 2.10)
|
|
#
|
|
# @data-file: reference to or definition of the external data file.
|
|
# This may only be specified for images that require an external
|
|
# data file. If it is not specified for such an image, the data
|
|
# file name is loaded from the image file. (since 4.0)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsQcow2',
|
|
'base': 'BlockdevOptionsGenericCOWFormat',
|
|
'data': { '*lazy-refcounts': 'bool',
|
|
'*pass-discard-request': 'bool',
|
|
'*pass-discard-snapshot': 'bool',
|
|
'*pass-discard-other': 'bool',
|
|
'*discard-no-unref': 'bool',
|
|
'*overlap-check': 'Qcow2OverlapChecks',
|
|
'*cache-size': 'int',
|
|
'*l2-cache-size': 'int',
|
|
'*l2-cache-entry-size': 'int',
|
|
'*refcount-cache-size': 'int',
|
|
'*cache-clean-interval': 'int',
|
|
'*encrypt': 'BlockdevQcow2Encryption',
|
|
'*data-file': 'BlockdevRef' } }
|
|
|
|
##
|
|
# @SshHostKeyCheckMode:
|
|
#
|
|
# @none: Don't check the host key at all
|
|
#
|
|
# @hash: Compare the host key with a given hash
|
|
#
|
|
# @known_hosts: Check the host key against the known_hosts file
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'enum': 'SshHostKeyCheckMode',
|
|
'data': [ 'none', 'hash', 'known_hosts' ] }
|
|
|
|
##
|
|
# @SshHostKeyCheckHashType:
|
|
#
|
|
# @md5: The given hash is an md5 hash
|
|
#
|
|
# @sha1: The given hash is an sha1 hash
|
|
#
|
|
# @sha256: The given hash is an sha256 hash
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'enum': 'SshHostKeyCheckHashType',
|
|
'data': [ 'md5', 'sha1', 'sha256' ] }
|
|
|
|
##
|
|
# @SshHostKeyHash:
|
|
#
|
|
# @type: The hash algorithm used for the hash
|
|
#
|
|
# @hash: The expected hash value
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'SshHostKeyHash',
|
|
'data': { 'type': 'SshHostKeyCheckHashType',
|
|
'hash': 'str' }}
|
|
|
|
##
|
|
# @SshHostKeyCheck:
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'union': 'SshHostKeyCheck',
|
|
'base': { 'mode': 'SshHostKeyCheckMode' },
|
|
'discriminator': 'mode',
|
|
'data': { 'hash': 'SshHostKeyHash' } }
|
|
|
|
##
|
|
# @BlockdevOptionsSsh:
|
|
#
|
|
# @server: host address
|
|
#
|
|
# @path: path to the image on the host
|
|
#
|
|
# @user: user as which to connect, defaults to current local user name
|
|
#
|
|
# @host-key-check: Defines how and what to check the host key against
|
|
# (default: known_hosts)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsSsh',
|
|
'data': { 'server': 'InetSocketAddress',
|
|
'path': 'str',
|
|
'*user': 'str',
|
|
'*host-key-check': 'SshHostKeyCheck' } }
|
|
|
|
##
|
|
# @BlkdebugEvent:
|
|
#
|
|
# Trigger events supported by blkdebug.
|
|
#
|
|
# @l1_shrink_write_table: write zeros to the l1 table to shrink image.
|
|
# (since 2.11)
|
|
#
|
|
# @l1_shrink_free_l2_clusters: discard the l2 tables. (since 2.11)
|
|
#
|
|
# @cor_write: a write due to copy-on-read (since 2.11)
|
|
#
|
|
# @cluster_alloc_space: an allocation of file space for a cluster
|
|
# (since 4.1)
|
|
#
|
|
# @none: triggers once at creation of the blkdebug node (since 4.1)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'BlkdebugEvent', 'prefix': 'BLKDBG',
|
|
'data': [ 'l1_update', 'l1_grow_alloc_table', 'l1_grow_write_table',
|
|
'l1_grow_activate_table', 'l2_load', 'l2_update',
|
|
'l2_update_compressed', 'l2_alloc_cow_read', 'l2_alloc_write',
|
|
'read_aio', 'read_backing_aio', 'read_compressed', 'write_aio',
|
|
'write_compressed', 'vmstate_load', 'vmstate_save', 'cow_read',
|
|
'cow_write', 'reftable_load', 'reftable_grow', 'reftable_update',
|
|
'refblock_load', 'refblock_update', 'refblock_update_part',
|
|
'refblock_alloc', 'refblock_alloc_hookup', 'refblock_alloc_write',
|
|
'refblock_alloc_write_blocks', 'refblock_alloc_write_table',
|
|
'refblock_alloc_switch_table', 'cluster_alloc',
|
|
'cluster_alloc_bytes', 'cluster_free', 'flush_to_os',
|
|
'flush_to_disk', 'pwritev_rmw_head', 'pwritev_rmw_after_head',
|
|
'pwritev_rmw_tail', 'pwritev_rmw_after_tail', 'pwritev',
|
|
'pwritev_zero', 'pwritev_done', 'empty_image_prepare',
|
|
'l1_shrink_write_table', 'l1_shrink_free_l2_clusters',
|
|
'cor_write', 'cluster_alloc_space', 'none'] }
|
|
|
|
##
|
|
# @BlkdebugIOType:
|
|
#
|
|
# Kinds of I/O that blkdebug can inject errors in.
|
|
#
|
|
# @read: .bdrv_co_preadv()
|
|
#
|
|
# @write: .bdrv_co_pwritev()
|
|
#
|
|
# @write-zeroes: .bdrv_co_pwrite_zeroes()
|
|
#
|
|
# @discard: .bdrv_co_pdiscard()
|
|
#
|
|
# @flush: .bdrv_co_flush_to_disk()
|
|
#
|
|
# @block-status: .bdrv_co_block_status()
|
|
#
|
|
# Since: 4.1
|
|
##
|
|
{ 'enum': 'BlkdebugIOType', 'prefix': 'BLKDEBUG_IO_TYPE',
|
|
'data': [ 'read', 'write', 'write-zeroes', 'discard', 'flush',
|
|
'block-status' ] }
|
|
|
|
##
|
|
# @BlkdebugInjectErrorOptions:
|
|
#
|
|
# Describes a single error injection for blkdebug.
|
|
#
|
|
# @event: trigger event
|
|
#
|
|
# @state: the state identifier blkdebug needs to be in to actually
|
|
# trigger the event; defaults to "any"
|
|
#
|
|
# @iotype: the type of I/O operations on which this error should be
|
|
# injected; defaults to "all read, write, write-zeroes, discard,
|
|
# and flush operations" (since: 4.1)
|
|
#
|
|
# @errno: error identifier (errno) to be returned; defaults to EIO
|
|
#
|
|
# @sector: specifies the sector index which has to be affected in
|
|
# order to actually trigger the event; defaults to "any sector"
|
|
#
|
|
# @once: disables further events after this one has been triggered;
|
|
# defaults to false
|
|
#
|
|
# @immediately: fail immediately; defaults to false
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlkdebugInjectErrorOptions',
|
|
'data': { 'event': 'BlkdebugEvent',
|
|
'*state': 'int',
|
|
'*iotype': 'BlkdebugIOType',
|
|
'*errno': 'int',
|
|
'*sector': 'int',
|
|
'*once': 'bool',
|
|
'*immediately': 'bool' } }
|
|
|
|
##
|
|
# @BlkdebugSetStateOptions:
|
|
#
|
|
# Describes a single state-change event for blkdebug.
|
|
#
|
|
# @event: trigger event
|
|
#
|
|
# @state: the current state identifier blkdebug needs to be in;
|
|
# defaults to "any"
|
|
#
|
|
# @new_state: the state identifier blkdebug is supposed to assume if
|
|
# this event is triggered
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlkdebugSetStateOptions',
|
|
'data': { 'event': 'BlkdebugEvent',
|
|
'*state': 'int',
|
|
'new_state': 'int' } }
|
|
|
|
##
|
|
# @BlockdevOptionsBlkdebug:
|
|
#
|
|
# Driver specific block device options for blkdebug.
|
|
#
|
|
# @image: underlying raw block device (or image file)
|
|
#
|
|
# @config: filename of the configuration file
|
|
#
|
|
# @align: required alignment for requests in bytes, must be positive
|
|
# power of 2, or 0 for default
|
|
#
|
|
# @max-transfer: maximum size for I/O transfers in bytes, must be
|
|
# positive multiple of @align and of the underlying file's request
|
|
# alignment (but need not be a power of 2), or 0 for default
|
|
# (since 2.10)
|
|
#
|
|
# @opt-write-zero: preferred alignment for write zero requests in
|
|
# bytes, must be positive multiple of @align and of the underlying
|
|
# file's request alignment (but need not be a power of 2), or 0
|
|
# for default (since 2.10)
|
|
#
|
|
# @max-write-zero: maximum size for write zero requests in bytes, must
|
|
# be positive multiple of @align, of @opt-write-zero, and of the
|
|
# underlying file's request alignment (but need not be a power of
|
|
# 2), or 0 for default (since 2.10)
|
|
#
|
|
# @opt-discard: preferred alignment for discard requests in bytes,
|
|
# must be positive multiple of @align and of the underlying file's
|
|
# request alignment (but need not be a power of 2), or 0 for
|
|
# default (since 2.10)
|
|
#
|
|
# @max-discard: maximum size for discard requests in bytes, must be
|
|
# positive multiple of @align, of @opt-discard, and of the
|
|
# underlying file's request alignment (but need not be a power of
|
|
# 2), or 0 for default (since 2.10)
|
|
#
|
|
# @inject-error: array of error injection descriptions
|
|
#
|
|
# @set-state: array of state-change descriptions
|
|
#
|
|
# @take-child-perms: Permissions to take on @image in addition to what
|
|
# is necessary anyway (which depends on how the blkdebug node is
|
|
# used). Defaults to none. (since 5.0)
|
|
#
|
|
# @unshare-child-perms: Permissions not to share on @image in addition
|
|
# to what cannot be shared anyway (which depends on how the
|
|
# blkdebug node is used). Defaults to none. (since 5.0)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsBlkdebug',
|
|
'data': { 'image': 'BlockdevRef',
|
|
'*config': 'str',
|
|
'*align': 'int', '*max-transfer': 'int32',
|
|
'*opt-write-zero': 'int32', '*max-write-zero': 'int32',
|
|
'*opt-discard': 'int32', '*max-discard': 'int32',
|
|
'*inject-error': ['BlkdebugInjectErrorOptions'],
|
|
'*set-state': ['BlkdebugSetStateOptions'],
|
|
'*take-child-perms': ['BlockPermission'],
|
|
'*unshare-child-perms': ['BlockPermission'] } }
|
|
|
|
##
|
|
# @BlockdevOptionsBlklogwrites:
|
|
#
|
|
# Driver specific block device options for blklogwrites.
|
|
#
|
|
# @file: block device
|
|
#
|
|
# @log: block device used to log writes to @file
|
|
#
|
|
# @log-sector-size: sector size used in logging writes to @file,
|
|
# determines granularity of offsets and sizes of writes
|
|
# (default: 512)
|
|
#
|
|
# @log-append: append to an existing log (default: false)
|
|
#
|
|
# @log-super-update-interval: interval of write requests after which
|
|
# the log super block is updated to disk (default: 4096)
|
|
#
|
|
# Since: 3.0
|
|
##
|
|
{ 'struct': 'BlockdevOptionsBlklogwrites',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'log': 'BlockdevRef',
|
|
'*log-sector-size': 'uint32',
|
|
'*log-append': 'bool',
|
|
'*log-super-update-interval': 'uint64' } }
|
|
|
|
##
|
|
# @BlockdevOptionsBlkverify:
|
|
#
|
|
# Driver specific block device options for blkverify.
|
|
#
|
|
# @test: block device to be tested
|
|
#
|
|
# @raw: raw image used for verification
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsBlkverify',
|
|
'data': { 'test': 'BlockdevRef',
|
|
'raw': 'BlockdevRef' } }
|
|
|
|
##
|
|
# @BlockdevOptionsBlkreplay:
|
|
#
|
|
# Driver specific block device options for blkreplay.
|
|
#
|
|
# @image: disk image which should be controlled with blkreplay
|
|
#
|
|
# Since: 4.2
|
|
##
|
|
{ 'struct': 'BlockdevOptionsBlkreplay',
|
|
'data': { 'image': 'BlockdevRef' } }
|
|
|
|
##
|
|
# @QuorumReadPattern:
|
|
#
|
|
# An enumeration of quorum read patterns.
|
|
#
|
|
# @quorum: read all the children and do a quorum vote on reads
|
|
#
|
|
# @fifo: read only from the first child that has not failed
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'QuorumReadPattern', 'data': [ 'quorum', 'fifo' ] }
|
|
|
|
##
|
|
# @BlockdevOptionsQuorum:
|
|
#
|
|
# Driver specific block device options for Quorum
|
|
#
|
|
# @blkverify: true if the driver must print content mismatch set to
|
|
# false by default
|
|
#
|
|
# @children: the children block devices to use
|
|
#
|
|
# @vote-threshold: the vote limit under which a read will fail
|
|
#
|
|
# @rewrite-corrupted: rewrite corrupted data when quorum is reached
|
|
# (Since 2.1)
|
|
#
|
|
# @read-pattern: choose read pattern and set to quorum by default
|
|
# (Since 2.2)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsQuorum',
|
|
'data': { '*blkverify': 'bool',
|
|
'children': [ 'BlockdevRef' ],
|
|
'vote-threshold': 'int',
|
|
'*rewrite-corrupted': 'bool',
|
|
'*read-pattern': 'QuorumReadPattern' } }
|
|
|
|
##
|
|
# @BlockdevOptionsGluster:
|
|
#
|
|
# Driver specific block device options for Gluster
|
|
#
|
|
# @volume: name of gluster volume where VM image resides
|
|
#
|
|
# @path: absolute path to image file in gluster volume
|
|
#
|
|
# @server: gluster servers description
|
|
#
|
|
# @debug: libgfapi log level (default '4' which is Error) (Since 2.8)
|
|
#
|
|
# @logfile: libgfapi log file (default /dev/stderr) (Since 2.8)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsGluster',
|
|
'data': { 'volume': 'str',
|
|
'path': 'str',
|
|
'server': ['SocketAddress'],
|
|
'*debug': 'int',
|
|
'*logfile': 'str' } }
|
|
|
|
##
|
|
# @BlockdevOptionsIoUring:
|
|
#
|
|
# Driver specific block device options for the io_uring backend.
|
|
#
|
|
# @filename: path to the image file
|
|
#
|
|
# Since: 7.2
|
|
##
|
|
{ 'struct': 'BlockdevOptionsIoUring',
|
|
'data': { 'filename': 'str' },
|
|
'if': 'CONFIG_BLKIO' }
|
|
|
|
##
|
|
# @BlockdevOptionsNvmeIoUring:
|
|
#
|
|
# Driver specific block device options for the nvme-io_uring backend.
|
|
#
|
|
# @path: path to the NVMe namespace's character device (e.g.
|
|
# /dev/ng0n1).
|
|
#
|
|
# Since: 7.2
|
|
##
|
|
{ 'struct': 'BlockdevOptionsNvmeIoUring',
|
|
'data': { 'path': 'str' },
|
|
'if': 'CONFIG_BLKIO' }
|
|
|
|
##
|
|
# @BlockdevOptionsVirtioBlkVfioPci:
|
|
#
|
|
# Driver specific block device options for the virtio-blk-vfio-pci
|
|
# backend.
|
|
#
|
|
# @path: path to the PCI device's sysfs directory (e.g.
|
|
# /sys/bus/pci/devices/0000:00:01.0).
|
|
#
|
|
# Since: 7.2
|
|
##
|
|
{ 'struct': 'BlockdevOptionsVirtioBlkVfioPci',
|
|
'data': { 'path': 'str' },
|
|
'if': 'CONFIG_BLKIO' }
|
|
|
|
##
|
|
# @BlockdevOptionsVirtioBlkVhostUser:
|
|
#
|
|
# Driver specific block device options for the virtio-blk-vhost-user
|
|
# backend.
|
|
#
|
|
# @path: path to the vhost-user UNIX domain socket.
|
|
#
|
|
# Since: 7.2
|
|
##
|
|
{ 'struct': 'BlockdevOptionsVirtioBlkVhostUser',
|
|
'data': { 'path': 'str' },
|
|
'if': 'CONFIG_BLKIO' }
|
|
|
|
##
|
|
# @BlockdevOptionsVirtioBlkVhostVdpa:
|
|
#
|
|
# Driver specific block device options for the virtio-blk-vhost-vdpa
|
|
# backend.
|
|
#
|
|
# @path: path to the vhost-vdpa character device.
|
|
#
|
|
# Features:
|
|
# @fdset: Member @path supports the special "/dev/fdset/N" path
|
|
# (since 8.1)
|
|
#
|
|
# Since: 7.2
|
|
##
|
|
{ 'struct': 'BlockdevOptionsVirtioBlkVhostVdpa',
|
|
'data': { 'path': 'str' },
|
|
'features': [ { 'name' :'fdset',
|
|
'if': 'CONFIG_BLKIO_VHOST_VDPA_FD' } ],
|
|
'if': 'CONFIG_BLKIO' }
|
|
|
|
##
|
|
# @IscsiTransport:
|
|
#
|
|
# An enumeration of libiscsi transport types
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'IscsiTransport',
|
|
'data': [ 'tcp', 'iser' ] }
|
|
|
|
##
|
|
# @IscsiHeaderDigest:
|
|
#
|
|
# An enumeration of header digests supported by libiscsi
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'IscsiHeaderDigest',
|
|
'prefix': 'QAPI_ISCSI_HEADER_DIGEST',
|
|
'data': [ 'crc32c', 'none', 'crc32c-none', 'none-crc32c' ] }
|
|
|
|
##
|
|
# @BlockdevOptionsIscsi:
|
|
#
|
|
# @transport: The iscsi transport type
|
|
#
|
|
# @portal: The address of the iscsi portal
|
|
#
|
|
# @target: The target iqn name
|
|
#
|
|
# @lun: LUN to connect to. Defaults to 0.
|
|
#
|
|
# @user: User name to log in with. If omitted, no CHAP authentication
|
|
# is performed.
|
|
#
|
|
# @password-secret: The ID of a QCryptoSecret object providing the
|
|
# password for the login. This option is required if @user is
|
|
# specified.
|
|
#
|
|
# @initiator-name: The iqn name we want to identify to the target as.
|
|
# If this option is not specified, an initiator name is generated
|
|
# automatically.
|
|
#
|
|
# @header-digest: The desired header digest. Defaults to none-crc32c.
|
|
#
|
|
# @timeout: Timeout in seconds after which a request will timeout. 0
|
|
# means no timeout and is the default.
|
|
#
|
|
# Driver specific block device options for iscsi
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsIscsi',
|
|
'data': { 'transport': 'IscsiTransport',
|
|
'portal': 'str',
|
|
'target': 'str',
|
|
'*lun': 'int',
|
|
'*user': 'str',
|
|
'*password-secret': 'str',
|
|
'*initiator-name': 'str',
|
|
'*header-digest': 'IscsiHeaderDigest',
|
|
'*timeout': 'int' } }
|
|
|
|
##
|
|
# @RbdAuthMode:
|
|
#
|
|
# Since: 3.0
|
|
##
|
|
{ 'enum': 'RbdAuthMode',
|
|
'data': [ 'cephx', 'none' ] }
|
|
|
|
##
|
|
# @RbdImageEncryptionFormat:
|
|
#
|
|
# @luks-any: Used for opening either luks or luks2 (Since 8.0)
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'enum': 'RbdImageEncryptionFormat',
|
|
'data': [ 'luks', 'luks2', 'luks-any' ] }
|
|
|
|
##
|
|
# @RbdEncryptionOptionsLUKSBase:
|
|
#
|
|
# @key-secret: ID of a QCryptoSecret object providing a passphrase for
|
|
# unlocking the encryption
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'struct': 'RbdEncryptionOptionsLUKSBase',
|
|
'data': { 'key-secret': 'str' } }
|
|
|
|
##
|
|
# @RbdEncryptionCreateOptionsLUKSBase:
|
|
#
|
|
# @cipher-alg: The encryption algorithm
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'struct': 'RbdEncryptionCreateOptionsLUKSBase',
|
|
'base': 'RbdEncryptionOptionsLUKSBase',
|
|
'data': { '*cipher-alg': 'QCryptoCipherAlgorithm' } }
|
|
|
|
##
|
|
# @RbdEncryptionOptionsLUKS:
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'struct': 'RbdEncryptionOptionsLUKS',
|
|
'base': 'RbdEncryptionOptionsLUKSBase',
|
|
'data': { } }
|
|
|
|
##
|
|
# @RbdEncryptionOptionsLUKS2:
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'struct': 'RbdEncryptionOptionsLUKS2',
|
|
'base': 'RbdEncryptionOptionsLUKSBase',
|
|
'data': { } }
|
|
|
|
##
|
|
# @RbdEncryptionOptionsLUKSAny:
|
|
#
|
|
# Since: 8.0
|
|
##
|
|
{ 'struct': 'RbdEncryptionOptionsLUKSAny',
|
|
'base': 'RbdEncryptionOptionsLUKSBase',
|
|
'data': { } }
|
|
|
|
##
|
|
# @RbdEncryptionCreateOptionsLUKS:
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'struct': 'RbdEncryptionCreateOptionsLUKS',
|
|
'base': 'RbdEncryptionCreateOptionsLUKSBase',
|
|
'data': { } }
|
|
|
|
##
|
|
# @RbdEncryptionCreateOptionsLUKS2:
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'struct': 'RbdEncryptionCreateOptionsLUKS2',
|
|
'base': 'RbdEncryptionCreateOptionsLUKSBase',
|
|
'data': { } }
|
|
|
|
##
|
|
# @RbdEncryptionOptions:
|
|
#
|
|
# @format: Encryption format.
|
|
#
|
|
# @parent: Parent image encryption options (for cloned images). Can
|
|
# be left unspecified if this cloned image is encrypted using the
|
|
# same format and secret as its parent image (i.e. not explicitly
|
|
# formatted) or if its parent image is not encrypted. (Since 8.0)
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'union': 'RbdEncryptionOptions',
|
|
'base': { 'format': 'RbdImageEncryptionFormat',
|
|
'*parent': 'RbdEncryptionOptions' },
|
|
'discriminator': 'format',
|
|
'data': { 'luks': 'RbdEncryptionOptionsLUKS',
|
|
'luks2': 'RbdEncryptionOptionsLUKS2',
|
|
'luks-any': 'RbdEncryptionOptionsLUKSAny'} }
|
|
|
|
##
|
|
# @RbdEncryptionCreateOptions:
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'union': 'RbdEncryptionCreateOptions',
|
|
'base': { 'format': 'RbdImageEncryptionFormat' },
|
|
'discriminator': 'format',
|
|
'data': { 'luks': 'RbdEncryptionCreateOptionsLUKS',
|
|
'luks2': 'RbdEncryptionCreateOptionsLUKS2' } }
|
|
|
|
##
|
|
# @BlockdevOptionsRbd:
|
|
#
|
|
# @pool: Ceph pool name.
|
|
#
|
|
# @namespace: Rados namespace name in the Ceph pool. (Since 5.0)
|
|
#
|
|
# @image: Image name in the Ceph pool.
|
|
#
|
|
# @conf: path to Ceph configuration file. Values in the configuration
|
|
# file will be overridden by options specified via QAPI.
|
|
#
|
|
# @snapshot: Ceph snapshot name.
|
|
#
|
|
# @encrypt: Image encryption options. (Since 6.1)
|
|
#
|
|
# @user: Ceph id name.
|
|
#
|
|
# @auth-client-required: Acceptable authentication modes. This maps
|
|
# to Ceph configuration option "auth_client_required". (Since
|
|
# 3.0)
|
|
#
|
|
# @key-secret: ID of a QCryptoSecret object providing a key for cephx
|
|
# authentication. This maps to Ceph configuration option "key".
|
|
# (Since 3.0)
|
|
#
|
|
# @server: Monitor host address and port. This maps to the "mon_host"
|
|
# Ceph option.
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsRbd',
|
|
'data': { 'pool': 'str',
|
|
'*namespace': 'str',
|
|
'image': 'str',
|
|
'*conf': 'str',
|
|
'*snapshot': 'str',
|
|
'*encrypt': 'RbdEncryptionOptions',
|
|
'*user': 'str',
|
|
'*auth-client-required': ['RbdAuthMode'],
|
|
'*key-secret': 'str',
|
|
'*server': ['InetSocketAddressBase'] } }
|
|
|
|
##
|
|
# @ReplicationMode:
|
|
#
|
|
# An enumeration of replication modes.
|
|
#
|
|
# @primary: Primary mode, the vm's state will be sent to secondary
|
|
# QEMU.
|
|
#
|
|
# @secondary: Secondary mode, receive the vm's state from primary
|
|
# QEMU.
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum' : 'ReplicationMode', 'data' : [ 'primary', 'secondary' ],
|
|
'if': 'CONFIG_REPLICATION' }
|
|
|
|
##
|
|
# @BlockdevOptionsReplication:
|
|
#
|
|
# Driver specific block device options for replication
|
|
#
|
|
# @mode: the replication mode
|
|
#
|
|
# @top-id: In secondary mode, node name or device ID of the root node
|
|
# who owns the replication node chain. Must not be given in
|
|
# primary mode.
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsReplication',
|
|
'base': 'BlockdevOptionsGenericFormat',
|
|
'data': { 'mode': 'ReplicationMode',
|
|
'*top-id': 'str' },
|
|
'if': 'CONFIG_REPLICATION' }
|
|
|
|
##
|
|
# @NFSTransport:
|
|
#
|
|
# An enumeration of NFS transport types
|
|
#
|
|
# @inet: TCP transport
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'NFSTransport',
|
|
'data': [ 'inet' ] }
|
|
|
|
##
|
|
# @NFSServer:
|
|
#
|
|
# Captures the address of the socket
|
|
#
|
|
# @type: transport type used for NFS (only TCP supported)
|
|
#
|
|
# @host: host address for NFS server
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'NFSServer',
|
|
'data': { 'type': 'NFSTransport',
|
|
'host': 'str' } }
|
|
|
|
##
|
|
# @BlockdevOptionsNfs:
|
|
#
|
|
# Driver specific block device option for NFS
|
|
#
|
|
# @server: host address
|
|
#
|
|
# @path: path of the image on the host
|
|
#
|
|
# @user: UID value to use when talking to the server (defaults to
|
|
# 65534 on Windows and getuid() on unix)
|
|
#
|
|
# @group: GID value to use when talking to the server (defaults to
|
|
# 65534 on Windows and getgid() in unix)
|
|
#
|
|
# @tcp-syn-count: number of SYNs during the session establishment
|
|
# (defaults to libnfs default)
|
|
#
|
|
# @readahead-size: set the readahead size in bytes (defaults to libnfs
|
|
# default)
|
|
#
|
|
# @page-cache-size: set the pagecache size in bytes (defaults to
|
|
# libnfs default)
|
|
#
|
|
# @debug: set the NFS debug level (max 2) (defaults to libnfs default)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsNfs',
|
|
'data': { 'server': 'NFSServer',
|
|
'path': 'str',
|
|
'*user': 'int',
|
|
'*group': 'int',
|
|
'*tcp-syn-count': 'int',
|
|
'*readahead-size': 'int',
|
|
'*page-cache-size': 'int',
|
|
'*debug': 'int' } }
|
|
|
|
##
|
|
# @BlockdevOptionsCurlBase:
|
|
#
|
|
# Driver specific block device options shared by all protocols
|
|
# supported by the curl backend.
|
|
#
|
|
# @url: URL of the image file
|
|
#
|
|
# @readahead: Size of the read-ahead cache; must be a multiple of 512
|
|
# (defaults to 256 kB)
|
|
#
|
|
# @timeout: Timeout for connections, in seconds (defaults to 5)
|
|
#
|
|
# @username: Username for authentication (defaults to none)
|
|
#
|
|
# @password-secret: ID of a QCryptoSecret object providing a password
|
|
# for authentication (defaults to no password)
|
|
#
|
|
# @proxy-username: Username for proxy authentication (defaults to
|
|
# none)
|
|
#
|
|
# @proxy-password-secret: ID of a QCryptoSecret object providing a
|
|
# password for proxy authentication (defaults to no password)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsCurlBase',
|
|
'data': { 'url': 'str',
|
|
'*readahead': 'int',
|
|
'*timeout': 'int',
|
|
'*username': 'str',
|
|
'*password-secret': 'str',
|
|
'*proxy-username': 'str',
|
|
'*proxy-password-secret': 'str' } }
|
|
|
|
##
|
|
# @BlockdevOptionsCurlHttp:
|
|
#
|
|
# Driver specific block device options for HTTP connections over the
|
|
# curl backend. URLs must start with "http://".
|
|
#
|
|
# @cookie: List of cookies to set; format is "name1=content1;
|
|
# name2=content2;" as explained by CURLOPT_COOKIE(3). Defaults to
|
|
# no cookies.
|
|
#
|
|
# @cookie-secret: ID of a QCryptoSecret object providing the cookie
|
|
# data in a secure way. See @cookie for the format. (since 2.10)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsCurlHttp',
|
|
'base': 'BlockdevOptionsCurlBase',
|
|
'data': { '*cookie': 'str',
|
|
'*cookie-secret': 'str'} }
|
|
|
|
##
|
|
# @BlockdevOptionsCurlHttps:
|
|
#
|
|
# Driver specific block device options for HTTPS connections over the
|
|
# curl backend. URLs must start with "https://".
|
|
#
|
|
# @cookie: List of cookies to set; format is "name1=content1;
|
|
# name2=content2;" as explained by CURLOPT_COOKIE(3). Defaults to
|
|
# no cookies.
|
|
#
|
|
# @sslverify: Whether to verify the SSL certificate's validity
|
|
# (defaults to true)
|
|
#
|
|
# @cookie-secret: ID of a QCryptoSecret object providing the cookie
|
|
# data in a secure way. See @cookie for the format. (since 2.10)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsCurlHttps',
|
|
'base': 'BlockdevOptionsCurlBase',
|
|
'data': { '*cookie': 'str',
|
|
'*sslverify': 'bool',
|
|
'*cookie-secret': 'str'} }
|
|
|
|
##
|
|
# @BlockdevOptionsCurlFtp:
|
|
#
|
|
# Driver specific block device options for FTP connections over the
|
|
# curl backend. URLs must start with "ftp://".
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsCurlFtp',
|
|
'base': 'BlockdevOptionsCurlBase',
|
|
'data': { } }
|
|
|
|
##
|
|
# @BlockdevOptionsCurlFtps:
|
|
#
|
|
# Driver specific block device options for FTPS connections over the
|
|
# curl backend. URLs must start with "ftps://".
|
|
#
|
|
# @sslverify: Whether to verify the SSL certificate's validity
|
|
# (defaults to true)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsCurlFtps',
|
|
'base': 'BlockdevOptionsCurlBase',
|
|
'data': { '*sslverify': 'bool' } }
|
|
|
|
##
|
|
# @BlockdevOptionsNbd:
|
|
#
|
|
# Driver specific block device options for NBD.
|
|
#
|
|
# @server: NBD server address
|
|
#
|
|
# @export: export name
|
|
#
|
|
# @tls-creds: TLS credentials ID
|
|
#
|
|
# @tls-hostname: TLS hostname override for certificate validation
|
|
# (Since 7.0)
|
|
#
|
|
# @x-dirty-bitmap: A metadata context name such as
|
|
# "qemu:dirty-bitmap:NAME" or "qemu:allocation-depth" to query in
|
|
# place of the traditional "base:allocation" block status (see
|
|
# NBD_OPT_LIST_META_CONTEXT in the NBD protocol; and yes, naming
|
|
# this option x-context would have made more sense) (since 3.0)
|
|
#
|
|
# @reconnect-delay: On an unexpected disconnect, the nbd client tries
|
|
# to connect again until succeeding or encountering a serious
|
|
# error. During the first @reconnect-delay seconds, all requests
|
|
# are paused and will be rerun on a successful reconnect. After
|
|
# that time, any delayed requests and all future requests before a
|
|
# successful reconnect will immediately fail. Default 0 (Since
|
|
# 4.2)
|
|
#
|
|
# @open-timeout: In seconds. If zero, the nbd driver tries the
|
|
# connection only once, and fails to open if the connection fails.
|
|
# If non-zero, the nbd driver will repeat connection attempts
|
|
# until successful or until @open-timeout seconds have elapsed.
|
|
# Default 0 (Since 7.0)
|
|
#
|
|
# Features:
|
|
#
|
|
# @unstable: Member @x-dirty-bitmap is experimental.
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsNbd',
|
|
'data': { 'server': 'SocketAddress',
|
|
'*export': 'str',
|
|
'*tls-creds': 'str',
|
|
'*tls-hostname': 'str',
|
|
'*x-dirty-bitmap': { 'type': 'str', 'features': [ 'unstable' ] },
|
|
'*reconnect-delay': 'uint32',
|
|
'*open-timeout': 'uint32' } }
|
|
|
|
##
|
|
# @BlockdevOptionsRaw:
|
|
#
|
|
# Driver specific block device options for the raw driver.
|
|
#
|
|
# @offset: position where the block device starts
|
|
#
|
|
# @size: the assumed size of the device
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsRaw',
|
|
'base': 'BlockdevOptionsGenericFormat',
|
|
'data': { '*offset': 'int', '*size': 'int' } }
|
|
|
|
##
|
|
# @BlockdevOptionsThrottle:
|
|
#
|
|
# Driver specific block device options for the throttle driver
|
|
#
|
|
# @throttle-group: the name of the throttle-group object to use. It
|
|
# must already exist.
|
|
#
|
|
# @file: reference to or definition of the data source block device
|
|
#
|
|
# Since: 2.11
|
|
##
|
|
{ 'struct': 'BlockdevOptionsThrottle',
|
|
'data': { 'throttle-group': 'str',
|
|
'file' : 'BlockdevRef'
|
|
} }
|
|
|
|
##
|
|
# @BlockdevOptionsCor:
|
|
#
|
|
# Driver specific block device options for the copy-on-read driver.
|
|
#
|
|
# @bottom: The name of a non-filter node (allocation-bearing layer)
|
|
# that limits the COR operations in the backing chain (inclusive),
|
|
# so that no data below this node will be copied by this filter.
|
|
# If option is absent, the limit is not applied, so that data from
|
|
# all backing layers may be copied.
|
|
#
|
|
# Since: 6.0
|
|
##
|
|
{ 'struct': 'BlockdevOptionsCor',
|
|
'base': 'BlockdevOptionsGenericFormat',
|
|
'data': { '*bottom': 'str' } }
|
|
|
|
##
|
|
# @OnCbwError:
|
|
#
|
|
# An enumeration of possible behaviors for copy-before-write operation
|
|
# failures.
|
|
#
|
|
# @break-guest-write: report the error to the guest. This way, the
|
|
# guest will not be able to overwrite areas that cannot be backed
|
|
# up, so the backup process remains valid.
|
|
#
|
|
# @break-snapshot: continue guest write. Doing so will make the
|
|
# provided snapshot state invalid and any backup or export process
|
|
# based on it will finally fail.
|
|
#
|
|
# Since: 7.1
|
|
##
|
|
{ 'enum': 'OnCbwError',
|
|
'data': [ 'break-guest-write', 'break-snapshot' ] }
|
|
|
|
##
|
|
# @BlockdevOptionsCbw:
|
|
#
|
|
# Driver specific block device options for the copy-before-write
|
|
# driver, which does so called copy-before-write operations: when data
|
|
# is written to the filter, the filter first reads corresponding
|
|
# blocks from its file child and copies them to @target child. After
|
|
# successfully copying, the write request is propagated to file child.
|
|
# If copying fails, the original write request is failed too and no
|
|
# data is written to file child.
|
|
#
|
|
# @target: The target for copy-before-write operations.
|
|
#
|
|
# @bitmap: If specified, copy-before-write filter will do
|
|
# copy-before-write operations only for dirty regions of the
|
|
# bitmap. Bitmap size must be equal to length of file and target
|
|
# child of the filter. Note also, that bitmap is used only to
|
|
# initialize internal bitmap of the process, so further
|
|
# modifications (or removing) of specified bitmap doesn't
|
|
# influence the filter. (Since 7.0)
|
|
#
|
|
# @on-cbw-error: Behavior on failure of copy-before-write operation.
|
|
# Default is @break-guest-write. (Since 7.1)
|
|
#
|
|
# @cbw-timeout: Zero means no limit. Non-zero sets the timeout in
|
|
# seconds for copy-before-write operation. When a timeout occurs,
|
|
# the respective copy-before-write operation will fail, and the
|
|
# @on-cbw-error parameter will decide how this failure is handled.
|
|
# Default 0. (Since 7.1)
|
|
#
|
|
# Since: 6.2
|
|
##
|
|
{ 'struct': 'BlockdevOptionsCbw',
|
|
'base': 'BlockdevOptionsGenericFormat',
|
|
'data': { 'target': 'BlockdevRef', '*bitmap': 'BlockDirtyBitmap',
|
|
'*on-cbw-error': 'OnCbwError', '*cbw-timeout': 'uint32' } }
|
|
|
|
##
|
|
# @BlockdevOptions:
|
|
#
|
|
# Options for creating a block device. Many options are available for
|
|
# all block devices, independent of the block driver:
|
|
#
|
|
# @driver: block driver name
|
|
#
|
|
# @node-name: the node name of the new node (Since 2.0). This option
|
|
# is required on the top level of blockdev-add. Valid node names
|
|
# start with an alphabetic character and may contain only
|
|
# alphanumeric characters, '-', '.' and '_'. Their maximum length
|
|
# is 31 characters.
|
|
#
|
|
# @discard: discard-related options (default: ignore)
|
|
#
|
|
# @cache: cache-related options
|
|
#
|
|
# @read-only: whether the block device should be read-only (default:
|
|
# false). Note that some block drivers support only read-only
|
|
# access, either generally or in certain configurations. In this
|
|
# case, the default value does not work and the option must be
|
|
# specified explicitly.
|
|
#
|
|
# @auto-read-only: if true and @read-only is false, QEMU may
|
|
# automatically decide not to open the image read-write as
|
|
# requested, but fall back to read-only instead (and switch
|
|
# between the modes later), e.g. depending on whether the image
|
|
# file is writable or whether a writing user is attached to the
|
|
# node (default: false, since 3.1)
|
|
#
|
|
# @detect-zeroes: detect and optimize zero writes (Since 2.1)
|
|
# (default: off)
|
|
#
|
|
# @force-share: force share all permission on added nodes. Requires
|
|
# read-only=true. (Since 2.10)
|
|
#
|
|
# Remaining options are determined by the block driver.
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'union': 'BlockdevOptions',
|
|
'base': { 'driver': 'BlockdevDriver',
|
|
'*node-name': 'str',
|
|
'*discard': 'BlockdevDiscardOptions',
|
|
'*cache': 'BlockdevCacheOptions',
|
|
'*read-only': 'bool',
|
|
'*auto-read-only': 'bool',
|
|
'*force-share': 'bool',
|
|
'*detect-zeroes': 'BlockdevDetectZeroesOptions' },
|
|
'discriminator': 'driver',
|
|
'data': {
|
|
'blkdebug': 'BlockdevOptionsBlkdebug',
|
|
'blklogwrites':'BlockdevOptionsBlklogwrites',
|
|
'blkverify': 'BlockdevOptionsBlkverify',
|
|
'blkreplay': 'BlockdevOptionsBlkreplay',
|
|
'bochs': 'BlockdevOptionsGenericFormat',
|
|
'cloop': 'BlockdevOptionsGenericFormat',
|
|
'compress': 'BlockdevOptionsGenericFormat',
|
|
'copy-before-write':'BlockdevOptionsCbw',
|
|
'copy-on-read':'BlockdevOptionsCor',
|
|
'dmg': 'BlockdevOptionsGenericFormat',
|
|
'file': 'BlockdevOptionsFile',
|
|
'ftp': 'BlockdevOptionsCurlFtp',
|
|
'ftps': 'BlockdevOptionsCurlFtps',
|
|
'gluster': 'BlockdevOptionsGluster',
|
|
'host_cdrom': { 'type': 'BlockdevOptionsFile',
|
|
'if': 'HAVE_HOST_BLOCK_DEVICE' },
|
|
'host_device': { 'type': 'BlockdevOptionsFile',
|
|
'if': 'HAVE_HOST_BLOCK_DEVICE' },
|
|
'http': 'BlockdevOptionsCurlHttp',
|
|
'https': 'BlockdevOptionsCurlHttps',
|
|
'io_uring': { 'type': 'BlockdevOptionsIoUring',
|
|
'if': 'CONFIG_BLKIO' },
|
|
'iscsi': 'BlockdevOptionsIscsi',
|
|
'luks': 'BlockdevOptionsLUKS',
|
|
'nbd': 'BlockdevOptionsNbd',
|
|
'nfs': 'BlockdevOptionsNfs',
|
|
'null-aio': 'BlockdevOptionsNull',
|
|
'null-co': 'BlockdevOptionsNull',
|
|
'nvme': 'BlockdevOptionsNVMe',
|
|
'nvme-io_uring': { 'type': 'BlockdevOptionsNvmeIoUring',
|
|
'if': 'CONFIG_BLKIO' },
|
|
'parallels': 'BlockdevOptionsGenericFormat',
|
|
'preallocate':'BlockdevOptionsPreallocate',
|
|
'qcow2': 'BlockdevOptionsQcow2',
|
|
'qcow': 'BlockdevOptionsQcow',
|
|
'qed': 'BlockdevOptionsGenericCOWFormat',
|
|
'quorum': 'BlockdevOptionsQuorum',
|
|
'raw': 'BlockdevOptionsRaw',
|
|
'rbd': 'BlockdevOptionsRbd',
|
|
'replication': { 'type': 'BlockdevOptionsReplication',
|
|
'if': 'CONFIG_REPLICATION' },
|
|
'snapshot-access': 'BlockdevOptionsGenericFormat',
|
|
'ssh': 'BlockdevOptionsSsh',
|
|
'throttle': 'BlockdevOptionsThrottle',
|
|
'vdi': 'BlockdevOptionsGenericFormat',
|
|
'vhdx': 'BlockdevOptionsGenericFormat',
|
|
'virtio-blk-vfio-pci':
|
|
{ 'type': 'BlockdevOptionsVirtioBlkVfioPci',
|
|
'if': 'CONFIG_BLKIO' },
|
|
'virtio-blk-vhost-user':
|
|
{ 'type': 'BlockdevOptionsVirtioBlkVhostUser',
|
|
'if': 'CONFIG_BLKIO' },
|
|
'virtio-blk-vhost-vdpa':
|
|
{ 'type': 'BlockdevOptionsVirtioBlkVhostVdpa',
|
|
'if': 'CONFIG_BLKIO' },
|
|
'vmdk': 'BlockdevOptionsGenericCOWFormat',
|
|
'vpc': 'BlockdevOptionsGenericFormat',
|
|
'vvfat': 'BlockdevOptionsVVFAT'
|
|
} }
|
|
|
|
##
|
|
# @BlockdevRef:
|
|
#
|
|
# Reference to a block device.
|
|
#
|
|
# @definition: defines a new block device inline
|
|
#
|
|
# @reference: references the ID of an existing block device
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'alternate': 'BlockdevRef',
|
|
'data': { 'definition': 'BlockdevOptions',
|
|
'reference': 'str' } }
|
|
|
|
##
|
|
# @BlockdevRefOrNull:
|
|
#
|
|
# Reference to a block device.
|
|
#
|
|
# @definition: defines a new block device inline
|
|
#
|
|
# @reference: references the ID of an existing block device. An empty
|
|
# string means that no block device should be referenced.
|
|
# Deprecated; use null instead.
|
|
#
|
|
# @null: No block device should be referenced (since 2.10)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'alternate': 'BlockdevRefOrNull',
|
|
'data': { 'definition': 'BlockdevOptions',
|
|
'reference': 'str',
|
|
'null': 'null' } }
|
|
|
|
##
|
|
# @blockdev-add:
|
|
#
|
|
# Creates a new block device.
|
|
#
|
|
# Since: 2.9
|
|
#
|
|
# Examples:
|
|
#
|
|
# -> { "execute": "blockdev-add",
|
|
# "arguments": {
|
|
# "driver": "qcow2",
|
|
# "node-name": "test1",
|
|
# "file": {
|
|
# "driver": "file",
|
|
# "filename": "test.qcow2"
|
|
# }
|
|
# }
|
|
# }
|
|
# <- { "return": {} }
|
|
#
|
|
# -> { "execute": "blockdev-add",
|
|
# "arguments": {
|
|
# "driver": "qcow2",
|
|
# "node-name": "node0",
|
|
# "discard": "unmap",
|
|
# "cache": {
|
|
# "direct": true
|
|
# },
|
|
# "file": {
|
|
# "driver": "file",
|
|
# "filename": "/tmp/test.qcow2"
|
|
# },
|
|
# "backing": {
|
|
# "driver": "raw",
|
|
# "file": {
|
|
# "driver": "file",
|
|
# "filename": "/dev/fdset/4"
|
|
# }
|
|
# }
|
|
# }
|
|
# }
|
|
#
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'blockdev-add', 'data': 'BlockdevOptions', 'boxed': true,
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @blockdev-reopen:
|
|
#
|
|
# Reopens one or more block devices using the given set of options.
|
|
# Any option not specified will be reset to its default value
|
|
# regardless of its previous status. If an option cannot be changed
|
|
# or a particular driver does not support reopening then the command
|
|
# will return an error. All devices in the list are reopened in one
|
|
# transaction, so if one of them fails then the whole transaction is
|
|
# cancelled.
|
|
#
|
|
# The command receives a list of block devices to reopen. For each
|
|
# one of them, the top-level @node-name option (from BlockdevOptions)
|
|
# must be specified and is used to select the block device to be
|
|
# reopened. Other @node-name options must be either omitted or set to
|
|
# the current name of the appropriate node. This command won't change
|
|
# any node name and any attempt to do it will result in an error.
|
|
#
|
|
# In the case of options that refer to child nodes, the behavior of
|
|
# this command depends on the value:
|
|
#
|
|
# 1) A set of options (BlockdevOptions): the child is reopened with
|
|
# the specified set of options.
|
|
#
|
|
# 2) A reference to the current child: the child is reopened using
|
|
# its existing set of options.
|
|
#
|
|
# 3) A reference to a different node: the current child is replaced
|
|
# with the specified one.
|
|
#
|
|
# 4) NULL: the current child (if any) is detached.
|
|
#
|
|
# Options (1) and (2) are supported in all cases. Option (3) is
|
|
# supported for @file and @backing, and option (4) for @backing only.
|
|
#
|
|
# Unlike with blockdev-add, the @backing option must always be present
|
|
# unless the node being reopened does not have a backing file and its
|
|
# image does not have a default backing file name as part of its
|
|
# metadata.
|
|
#
|
|
# Since: 6.1
|
|
##
|
|
{ 'command': 'blockdev-reopen',
|
|
'data': { 'options': ['BlockdevOptions'] },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @blockdev-del:
|
|
#
|
|
# Deletes a block device that has been added using blockdev-add. The
|
|
# command will fail if the node is attached to a device or is
|
|
# otherwise being used.
|
|
#
|
|
# @node-name: Name of the graph node to delete.
|
|
#
|
|
# Since: 2.9
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-add",
|
|
# "arguments": {
|
|
# "driver": "qcow2",
|
|
# "node-name": "node0",
|
|
# "file": {
|
|
# "driver": "file",
|
|
# "filename": "test.qcow2"
|
|
# }
|
|
# }
|
|
# }
|
|
# <- { "return": {} }
|
|
#
|
|
# -> { "execute": "blockdev-del",
|
|
# "arguments": { "node-name": "node0" }
|
|
# }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'blockdev-del', 'data': { 'node-name': 'str' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsFile:
|
|
#
|
|
# Driver specific image creation options for file.
|
|
#
|
|
# @filename: Filename for the new image file
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @preallocation: Preallocation mode for the new image (default: off;
|
|
# allowed values: off, falloc (if CONFIG_POSIX_FALLOCATE), full
|
|
# (if CONFIG_POSIX))
|
|
#
|
|
# @nocow: Turn off copy-on-write (valid only on btrfs; default: off)
|
|
#
|
|
# @extent-size-hint: Extent size hint to add to the image file; 0 for
|
|
# not adding an extent size hint (default: 1 MB, since 5.1)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsFile',
|
|
'data': { 'filename': 'str',
|
|
'size': 'size',
|
|
'*preallocation': 'PreallocMode',
|
|
'*nocow': 'bool',
|
|
'*extent-size-hint': 'size'} }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsGluster:
|
|
#
|
|
# Driver specific image creation options for gluster.
|
|
#
|
|
# @location: Where to store the new image file
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @preallocation: Preallocation mode for the new image (default: off;
|
|
# allowed values: off, falloc (if CONFIG_GLUSTERFS_FALLOCATE),
|
|
# full (if CONFIG_GLUSTERFS_ZEROFILL))
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsGluster',
|
|
'data': { 'location': 'BlockdevOptionsGluster',
|
|
'size': 'size',
|
|
'*preallocation': 'PreallocMode' } }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsLUKS:
|
|
#
|
|
# Driver specific image creation options for LUKS.
|
|
#
|
|
# @file: Node to create the image format on
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @preallocation: Preallocation mode for the new image (since: 4.2)
|
|
# (default: off; allowed values: off, metadata, falloc, full)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsLUKS',
|
|
'base': 'QCryptoBlockCreateOptionsLUKS',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'size': 'size',
|
|
'*preallocation': 'PreallocMode' } }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsNfs:
|
|
#
|
|
# Driver specific image creation options for NFS.
|
|
#
|
|
# @location: Where to store the new image file
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsNfs',
|
|
'data': { 'location': 'BlockdevOptionsNfs',
|
|
'size': 'size' } }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsParallels:
|
|
#
|
|
# Driver specific image creation options for parallels.
|
|
#
|
|
# @file: Node to create the image format on
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @cluster-size: Cluster size in bytes (default: 1 MB)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsParallels',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'size': 'size',
|
|
'*cluster-size': 'size' } }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsQcow:
|
|
#
|
|
# Driver specific image creation options for qcow.
|
|
#
|
|
# @file: Node to create the image format on
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @backing-file: File name of the backing file if a backing file
|
|
# should be used
|
|
#
|
|
# @encrypt: Encryption options if the image should be encrypted
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsQcow',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'size': 'size',
|
|
'*backing-file': 'str',
|
|
'*encrypt': 'QCryptoBlockCreateOptions' } }
|
|
|
|
##
|
|
# @BlockdevQcow2Version:
|
|
#
|
|
# @v2: The original QCOW2 format as introduced in qemu 0.10 (version
|
|
# 2)
|
|
#
|
|
# @v3: The extended QCOW2 format as introduced in qemu 1.1 (version 3)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'enum': 'BlockdevQcow2Version',
|
|
'data': [ 'v2', 'v3' ] }
|
|
|
|
##
|
|
# @Qcow2CompressionType:
|
|
#
|
|
# Compression type used in qcow2 image file
|
|
#
|
|
# @zlib: zlib compression, see <http://zlib.net/>
|
|
#
|
|
# @zstd: zstd compression, see <http://github.com/facebook/zstd>
|
|
#
|
|
# Since: 5.1
|
|
##
|
|
{ 'enum': 'Qcow2CompressionType',
|
|
'data': [ 'zlib', { 'name': 'zstd', 'if': 'CONFIG_ZSTD' } ] }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsQcow2:
|
|
#
|
|
# Driver specific image creation options for qcow2.
|
|
#
|
|
# @file: Node to create the image format on
|
|
#
|
|
# @data-file: Node to use as an external data file in which all guest
|
|
# data is stored so that only metadata remains in the qcow2 file
|
|
# (since: 4.0)
|
|
#
|
|
# @data-file-raw: True if the external data file must stay valid as a
|
|
# standalone (read-only) raw image without looking at qcow2
|
|
# metadata (default: false; since: 4.0)
|
|
#
|
|
# @extended-l2: True to make the image have extended L2 entries
|
|
# (default: false; since 5.2)
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @version: Compatibility level (default: v3)
|
|
#
|
|
# @backing-file: File name of the backing file if a backing file
|
|
# should be used
|
|
#
|
|
# @backing-fmt: Name of the block driver to use for the backing file
|
|
#
|
|
# @encrypt: Encryption options if the image should be encrypted
|
|
#
|
|
# @cluster-size: qcow2 cluster size in bytes (default: 65536)
|
|
#
|
|
# @preallocation: Preallocation mode for the new image (default: off;
|
|
# allowed values: off, falloc, full, metadata)
|
|
#
|
|
# @lazy-refcounts: True if refcounts may be updated lazily
|
|
# (default: off)
|
|
#
|
|
# @refcount-bits: Width of reference counts in bits (default: 16)
|
|
#
|
|
# @compression-type: The image cluster compression method
|
|
# (default: zlib, since 5.1)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsQcow2',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'*data-file': 'BlockdevRef',
|
|
'*data-file-raw': 'bool',
|
|
'*extended-l2': 'bool',
|
|
'size': 'size',
|
|
'*version': 'BlockdevQcow2Version',
|
|
'*backing-file': 'str',
|
|
'*backing-fmt': 'BlockdevDriver',
|
|
'*encrypt': 'QCryptoBlockCreateOptions',
|
|
'*cluster-size': 'size',
|
|
'*preallocation': 'PreallocMode',
|
|
'*lazy-refcounts': 'bool',
|
|
'*refcount-bits': 'int',
|
|
'*compression-type':'Qcow2CompressionType' } }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsQed:
|
|
#
|
|
# Driver specific image creation options for qed.
|
|
#
|
|
# @file: Node to create the image format on
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @backing-file: File name of the backing file if a backing file
|
|
# should be used
|
|
#
|
|
# @backing-fmt: Name of the block driver to use for the backing file
|
|
#
|
|
# @cluster-size: Cluster size in bytes (default: 65536)
|
|
#
|
|
# @table-size: L1/L2 table size (in clusters)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsQed',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'size': 'size',
|
|
'*backing-file': 'str',
|
|
'*backing-fmt': 'BlockdevDriver',
|
|
'*cluster-size': 'size',
|
|
'*table-size': 'int' } }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsRbd:
|
|
#
|
|
# Driver specific image creation options for rbd/Ceph.
|
|
#
|
|
# @location: Where to store the new image file. This location cannot
|
|
# point to a snapshot.
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @cluster-size: RBD object size
|
|
#
|
|
# @encrypt: Image encryption options. (Since 6.1)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsRbd',
|
|
'data': { 'location': 'BlockdevOptionsRbd',
|
|
'size': 'size',
|
|
'*cluster-size' : 'size',
|
|
'*encrypt' : 'RbdEncryptionCreateOptions' } }
|
|
|
|
##
|
|
# @BlockdevVmdkSubformat:
|
|
#
|
|
# Subformat options for VMDK images
|
|
#
|
|
# @monolithicSparse: Single file image with sparse cluster allocation
|
|
#
|
|
# @monolithicFlat: Single flat data image and a descriptor file
|
|
#
|
|
# @twoGbMaxExtentSparse: Data is split into 2GB (per virtual LBA)
|
|
# sparse extent files, in addition to a descriptor file
|
|
#
|
|
# @twoGbMaxExtentFlat: Data is split into 2GB (per virtual LBA) flat
|
|
# extent files, in addition to a descriptor file
|
|
#
|
|
# @streamOptimized: Single file image sparse cluster allocation,
|
|
# optimized for streaming over network.
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'enum': 'BlockdevVmdkSubformat',
|
|
'data': [ 'monolithicSparse', 'monolithicFlat', 'twoGbMaxExtentSparse',
|
|
'twoGbMaxExtentFlat', 'streamOptimized'] }
|
|
|
|
##
|
|
# @BlockdevVmdkAdapterType:
|
|
#
|
|
# Adapter type info for VMDK images
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'enum': 'BlockdevVmdkAdapterType',
|
|
'data': [ 'ide', 'buslogic', 'lsilogic', 'legacyESX'] }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsVmdk:
|
|
#
|
|
# Driver specific image creation options for VMDK.
|
|
#
|
|
# @file: Where to store the new image file. This refers to the image
|
|
# file for monolithcSparse and streamOptimized format, or the
|
|
# descriptor file for other formats.
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @extents: Where to store the data extents. Required for
|
|
# monolithcFlat, twoGbMaxExtentSparse and twoGbMaxExtentFlat
|
|
# formats. For monolithicFlat, only one entry is required; for
|
|
# twoGbMaxExtent* formats, the number of entries required is
|
|
# calculated as extent_number = virtual_size / 2GB. Providing more
|
|
# extents than will be used is an error.
|
|
#
|
|
# @subformat: The subformat of the VMDK image. Default:
|
|
# "monolithicSparse".
|
|
#
|
|
# @backing-file: The path of backing file. Default: no backing file
|
|
# is used.
|
|
#
|
|
# @adapter-type: The adapter type used to fill in the descriptor.
|
|
# Default: ide.
|
|
#
|
|
# @hwversion: Hardware version. The meaningful options are "4" or
|
|
# "6". Default: "4".
|
|
#
|
|
# @toolsversion: VMware guest tools version. Default: "2147483647"
|
|
# (Since 6.2)
|
|
#
|
|
# @zeroed-grain: Whether to enable zeroed-grain feature for sparse
|
|
# subformats. Default: false.
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsVmdk',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'size': 'size',
|
|
'*extents': ['BlockdevRef'],
|
|
'*subformat': 'BlockdevVmdkSubformat',
|
|
'*backing-file': 'str',
|
|
'*adapter-type': 'BlockdevVmdkAdapterType',
|
|
'*hwversion': 'str',
|
|
'*toolsversion': 'str',
|
|
'*zeroed-grain': 'bool' } }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsSsh:
|
|
#
|
|
# Driver specific image creation options for SSH.
|
|
#
|
|
# @location: Where to store the new image file
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsSsh',
|
|
'data': { 'location': 'BlockdevOptionsSsh',
|
|
'size': 'size' } }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsVdi:
|
|
#
|
|
# Driver specific image creation options for VDI.
|
|
#
|
|
# @file: Node to create the image format on
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @preallocation: Preallocation mode for the new image (default: off;
|
|
# allowed values: off, metadata)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsVdi',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'size': 'size',
|
|
'*preallocation': 'PreallocMode' } }
|
|
|
|
##
|
|
# @BlockdevVhdxSubformat:
|
|
#
|
|
# @dynamic: Growing image file
|
|
#
|
|
# @fixed: Preallocated fixed-size image file
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'enum': 'BlockdevVhdxSubformat',
|
|
'data': [ 'dynamic', 'fixed' ] }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsVhdx:
|
|
#
|
|
# Driver specific image creation options for vhdx.
|
|
#
|
|
# @file: Node to create the image format on
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @log-size: Log size in bytes, must be a multiple of 1 MB (default: 1
|
|
# MB)
|
|
#
|
|
# @block-size: Block size in bytes, must be a multiple of 1 MB and not
|
|
# larger than 256 MB (default: automatically choose a block size
|
|
# depending on the image size)
|
|
#
|
|
# @subformat: vhdx subformat (default: dynamic)
|
|
#
|
|
# @block-state-zero: Force use of payload blocks of type 'ZERO'.
|
|
# Non-standard, but default. Do not set to 'off' when using
|
|
# 'qemu-img convert' with subformat=dynamic.
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsVhdx',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'size': 'size',
|
|
'*log-size': 'size',
|
|
'*block-size': 'size',
|
|
'*subformat': 'BlockdevVhdxSubformat',
|
|
'*block-state-zero': 'bool' } }
|
|
|
|
##
|
|
# @BlockdevVpcSubformat:
|
|
#
|
|
# @dynamic: Growing image file
|
|
#
|
|
# @fixed: Preallocated fixed-size image file
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'enum': 'BlockdevVpcSubformat',
|
|
'data': [ 'dynamic', 'fixed' ] }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsVpc:
|
|
#
|
|
# Driver specific image creation options for vpc (VHD).
|
|
#
|
|
# @file: Node to create the image format on
|
|
#
|
|
# @size: Size of the virtual disk in bytes
|
|
#
|
|
# @subformat: vhdx subformat (default: dynamic)
|
|
#
|
|
# @force-size: Force use of the exact byte size instead of rounding to
|
|
# the next size that can be represented in CHS geometry
|
|
# (default: false)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsVpc',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'size': 'size',
|
|
'*subformat': 'BlockdevVpcSubformat',
|
|
'*force-size': 'bool' } }
|
|
|
|
##
|
|
# @BlockdevCreateOptions:
|
|
#
|
|
# Options for creating an image format on a given node.
|
|
#
|
|
# @driver: block driver to create the image format
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'union': 'BlockdevCreateOptions',
|
|
'base': {
|
|
'driver': 'BlockdevDriver' },
|
|
'discriminator': 'driver',
|
|
'data': {
|
|
'file': 'BlockdevCreateOptionsFile',
|
|
'gluster': 'BlockdevCreateOptionsGluster',
|
|
'luks': 'BlockdevCreateOptionsLUKS',
|
|
'nfs': 'BlockdevCreateOptionsNfs',
|
|
'parallels': 'BlockdevCreateOptionsParallels',
|
|
'qcow': 'BlockdevCreateOptionsQcow',
|
|
'qcow2': 'BlockdevCreateOptionsQcow2',
|
|
'qed': 'BlockdevCreateOptionsQed',
|
|
'rbd': 'BlockdevCreateOptionsRbd',
|
|
'ssh': 'BlockdevCreateOptionsSsh',
|
|
'vdi': 'BlockdevCreateOptionsVdi',
|
|
'vhdx': 'BlockdevCreateOptionsVhdx',
|
|
'vmdk': 'BlockdevCreateOptionsVmdk',
|
|
'vpc': 'BlockdevCreateOptionsVpc'
|
|
} }
|
|
|
|
##
|
|
# @blockdev-create:
|
|
#
|
|
# Starts a job to create an image format on a given node. The job is
|
|
# automatically finalized, but a manual job-dismiss is required.
|
|
#
|
|
# @job-id: Identifier for the newly created job.
|
|
#
|
|
# @options: Options for the image creation.
|
|
#
|
|
# Since: 3.0
|
|
##
|
|
{ 'command': 'blockdev-create',
|
|
'data': { 'job-id': 'str',
|
|
'options': 'BlockdevCreateOptions' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @BlockdevAmendOptionsLUKS:
|
|
#
|
|
# Driver specific image amend options for LUKS.
|
|
#
|
|
# Since: 5.1
|
|
##
|
|
{ 'struct': 'BlockdevAmendOptionsLUKS',
|
|
'base': 'QCryptoBlockAmendOptionsLUKS',
|
|
'data': { }
|
|
}
|
|
|
|
##
|
|
# @BlockdevAmendOptionsQcow2:
|
|
#
|
|
# Driver specific image amend options for qcow2. For now, only
|
|
# encryption options can be amended
|
|
#
|
|
# @encrypt: Encryption options to be amended
|
|
#
|
|
# Since: 5.1
|
|
##
|
|
{ 'struct': 'BlockdevAmendOptionsQcow2',
|
|
'data': { '*encrypt': 'QCryptoBlockAmendOptions' } }
|
|
|
|
##
|
|
# @BlockdevAmendOptions:
|
|
#
|
|
# Options for amending an image format
|
|
#
|
|
# @driver: Block driver of the node to amend.
|
|
#
|
|
# Since: 5.1
|
|
##
|
|
{ 'union': 'BlockdevAmendOptions',
|
|
'base': {
|
|
'driver': 'BlockdevDriver' },
|
|
'discriminator': 'driver',
|
|
'data': {
|
|
'luks': 'BlockdevAmendOptionsLUKS',
|
|
'qcow2': 'BlockdevAmendOptionsQcow2' } }
|
|
|
|
##
|
|
# @x-blockdev-amend:
|
|
#
|
|
# Starts a job to amend format specific options of an existing open
|
|
# block device The job is automatically finalized, but a manual
|
|
# job-dismiss is required.
|
|
#
|
|
# @job-id: Identifier for the newly created job.
|
|
#
|
|
# @node-name: Name of the block node to work on
|
|
#
|
|
# @options: Options (driver specific)
|
|
#
|
|
# @force: Allow unsafe operations, format specific For luks that
|
|
# allows erase of the last active keyslot (permanent loss of
|
|
# data), and replacement of an active keyslot (possible loss of
|
|
# data if IO error happens)
|
|
#
|
|
# Features:
|
|
#
|
|
# @unstable: This command is experimental.
|
|
#
|
|
# Since: 5.1
|
|
##
|
|
{ 'command': 'x-blockdev-amend',
|
|
'data': { 'job-id': 'str',
|
|
'node-name': 'str',
|
|
'options': 'BlockdevAmendOptions',
|
|
'*force': 'bool' },
|
|
'features': [ 'unstable' ],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @BlockErrorAction:
|
|
#
|
|
# An enumeration of action that has been taken when a DISK I/O occurs
|
|
#
|
|
# @ignore: error has been ignored
|
|
#
|
|
# @report: error has been reported to the device
|
|
#
|
|
# @stop: error caused VM to be stopped
|
|
#
|
|
# Since: 2.1
|
|
##
|
|
{ 'enum': 'BlockErrorAction',
|
|
'data': [ 'ignore', 'report', 'stop' ] }
|
|
|
|
##
|
|
# @BLOCK_IMAGE_CORRUPTED:
|
|
#
|
|
# Emitted when a disk image is being marked corrupt. The image can be
|
|
# identified by its device or node name. The 'device' field is always
|
|
# present for compatibility reasons, but it can be empty ("") if the
|
|
# image does not have a device name associated.
|
|
#
|
|
# @device: device name. This is always present for compatibility
|
|
# reasons, but it can be empty ("") if the image does not have a
|
|
# device name associated.
|
|
#
|
|
# @node-name: node name (Since: 2.4)
|
|
#
|
|
# @msg: informative message for human consumption, such as the kind of
|
|
# corruption being detected. It should not be parsed by machine
|
|
# as it is not guaranteed to be stable
|
|
#
|
|
# @offset: if the corruption resulted from an image access, this is
|
|
# the host's access offset into the image
|
|
#
|
|
# @size: if the corruption resulted from an image access, this is the
|
|
# access size
|
|
#
|
|
# @fatal: if set, the image is marked corrupt and therefore unusable
|
|
# after this event and must be repaired (Since 2.2; before, every
|
|
# BLOCK_IMAGE_CORRUPTED event was fatal)
|
|
#
|
|
# Note: If action is "stop", a STOP event will eventually follow the
|
|
# BLOCK_IO_ERROR event.
|
|
#
|
|
# Example:
|
|
#
|
|
# <- { "event": "BLOCK_IMAGE_CORRUPTED",
|
|
# "data": { "device": "", "node-name": "drive", "fatal": false,
|
|
# "msg": "L2 table offset 0x2a2a2a00 unaligned (L1 index: 0)" },
|
|
# "timestamp": { "seconds": 1648243240, "microseconds": 906060 } }
|
|
#
|
|
# Since: 1.7
|
|
##
|
|
{ 'event': 'BLOCK_IMAGE_CORRUPTED',
|
|
'data': { 'device' : 'str',
|
|
'*node-name' : 'str',
|
|
'msg' : 'str',
|
|
'*offset' : 'int',
|
|
'*size' : 'int',
|
|
'fatal' : 'bool' } }
|
|
|
|
##
|
|
# @BLOCK_IO_ERROR:
|
|
#
|
|
# Emitted when a disk I/O error occurs
|
|
#
|
|
# @device: device name. This is always present for compatibility
|
|
# reasons, but it can be empty ("") if the image does not have a
|
|
# device name associated.
|
|
#
|
|
# @node-name: node name. Note that errors may be reported for the
|
|
# root node that is directly attached to a guest device rather
|
|
# than for the node where the error occurred. The node name is
|
|
# not present if the drive is empty. (Since: 2.8)
|
|
#
|
|
# @operation: I/O operation
|
|
#
|
|
# @action: action that has been taken
|
|
#
|
|
# @nospace: true if I/O error was caused due to a no-space condition.
|
|
# This key is only present if query-block's io-status is present,
|
|
# please see query-block documentation for more information
|
|
# (since: 2.2)
|
|
#
|
|
# @reason: human readable string describing the error cause. (This
|
|
# field is a debugging aid for humans, it should not be parsed by
|
|
# applications) (since: 2.2)
|
|
#
|
|
# Note: If action is "stop", a STOP event will eventually follow the
|
|
# BLOCK_IO_ERROR event
|
|
#
|
|
# Since: 0.13
|
|
#
|
|
# Example:
|
|
#
|
|
# <- { "event": "BLOCK_IO_ERROR",
|
|
# "data": { "device": "ide0-hd1",
|
|
# "node-name": "#block212",
|
|
# "operation": "write",
|
|
# "action": "stop",
|
|
# "reason": "No space left on device" },
|
|
# "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
|
|
##
|
|
{ 'event': 'BLOCK_IO_ERROR',
|
|
'data': { 'device': 'str', '*node-name': 'str',
|
|
'operation': 'IoOperationType',
|
|
'action': 'BlockErrorAction', '*nospace': 'bool',
|
|
'reason': 'str' } }
|
|
|
|
##
|
|
# @BLOCK_JOB_COMPLETED:
|
|
#
|
|
# Emitted when a block job has completed
|
|
#
|
|
# @type: job type
|
|
#
|
|
# @device: The job identifier. Originally the device name but other
|
|
# values are allowed since QEMU 2.7
|
|
#
|
|
# @len: maximum progress value
|
|
#
|
|
# @offset: current progress value. On success this is equal to len.
|
|
# On failure this is less than len
|
|
#
|
|
# @speed: rate limit, bytes per second
|
|
#
|
|
# @error: error message. Only present on failure. This field
|
|
# contains a human-readable error message. There are no semantics
|
|
# other than that streaming has failed and clients should not try
|
|
# to interpret the error string
|
|
#
|
|
# Since: 1.1
|
|
#
|
|
# Example:
|
|
#
|
|
# <- { "event": "BLOCK_JOB_COMPLETED",
|
|
# "data": { "type": "stream", "device": "virtio-disk0",
|
|
# "len": 10737418240, "offset": 10737418240,
|
|
# "speed": 0 },
|
|
# "timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
|
|
##
|
|
{ 'event': 'BLOCK_JOB_COMPLETED',
|
|
'data': { 'type' : 'JobType',
|
|
'device': 'str',
|
|
'len' : 'int',
|
|
'offset': 'int',
|
|
'speed' : 'int',
|
|
'*error': 'str' } }
|
|
|
|
##
|
|
# @BLOCK_JOB_CANCELLED:
|
|
#
|
|
# Emitted when a block job has been cancelled
|
|
#
|
|
# @type: job type
|
|
#
|
|
# @device: The job identifier. Originally the device name but other
|
|
# values are allowed since QEMU 2.7
|
|
#
|
|
# @len: maximum progress value
|
|
#
|
|
# @offset: current progress value. On success this is equal to len.
|
|
# On failure this is less than len
|
|
#
|
|
# @speed: rate limit, bytes per second
|
|
#
|
|
# Since: 1.1
|
|
#
|
|
# Example:
|
|
#
|
|
# <- { "event": "BLOCK_JOB_CANCELLED",
|
|
# "data": { "type": "stream", "device": "virtio-disk0",
|
|
# "len": 10737418240, "offset": 134217728,
|
|
# "speed": 0 },
|
|
# "timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
|
|
##
|
|
{ 'event': 'BLOCK_JOB_CANCELLED',
|
|
'data': { 'type' : 'JobType',
|
|
'device': 'str',
|
|
'len' : 'int',
|
|
'offset': 'int',
|
|
'speed' : 'int' } }
|
|
|
|
##
|
|
# @BLOCK_JOB_ERROR:
|
|
#
|
|
# Emitted when a block job encounters an error
|
|
#
|
|
# @device: The job identifier. Originally the device name but other
|
|
# values are allowed since QEMU 2.7
|
|
#
|
|
# @operation: I/O operation
|
|
#
|
|
# @action: action that has been taken
|
|
#
|
|
# Since: 1.3
|
|
#
|
|
# Example:
|
|
#
|
|
# <- { "event": "BLOCK_JOB_ERROR",
|
|
# "data": { "device": "ide0-hd1",
|
|
# "operation": "write",
|
|
# "action": "stop" },
|
|
# "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
|
|
##
|
|
{ 'event': 'BLOCK_JOB_ERROR',
|
|
'data': { 'device' : 'str',
|
|
'operation': 'IoOperationType',
|
|
'action' : 'BlockErrorAction' } }
|
|
|
|
##
|
|
# @BLOCK_JOB_READY:
|
|
#
|
|
# Emitted when a block job is ready to complete
|
|
#
|
|
# @type: job type
|
|
#
|
|
# @device: The job identifier. Originally the device name but other
|
|
# values are allowed since QEMU 2.7
|
|
#
|
|
# @len: maximum progress value
|
|
#
|
|
# @offset: current progress value. On success this is equal to len.
|
|
# On failure this is less than len
|
|
#
|
|
# @speed: rate limit, bytes per second
|
|
#
|
|
# Note: The "ready to complete" status is always reset by a
|
|
# @BLOCK_JOB_ERROR event
|
|
#
|
|
# Since: 1.3
|
|
#
|
|
# Example:
|
|
#
|
|
# <- { "event": "BLOCK_JOB_READY",
|
|
# "data": { "device": "drive0", "type": "mirror", "speed": 0,
|
|
# "len": 2097152, "offset": 2097152 },
|
|
# "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
|
|
##
|
|
{ 'event': 'BLOCK_JOB_READY',
|
|
'data': { 'type' : 'JobType',
|
|
'device': 'str',
|
|
'len' : 'int',
|
|
'offset': 'int',
|
|
'speed' : 'int' } }
|
|
|
|
##
|
|
# @BLOCK_JOB_PENDING:
|
|
#
|
|
# Emitted when a block job is awaiting explicit authorization to
|
|
# finalize graph changes via @block-job-finalize. If this job is part
|
|
# of a transaction, it will not emit this event until the transaction
|
|
# has converged first.
|
|
#
|
|
# @type: job type
|
|
#
|
|
# @id: The job identifier.
|
|
#
|
|
# Since: 2.12
|
|
#
|
|
# Example:
|
|
#
|
|
# <- { "event": "BLOCK_JOB_PENDING",
|
|
# "data": { "type": "mirror", "id": "backup_1" },
|
|
# "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
|
|
##
|
|
{ 'event': 'BLOCK_JOB_PENDING',
|
|
'data': { 'type' : 'JobType',
|
|
'id' : 'str' } }
|
|
|
|
##
|
|
# @PreallocMode:
|
|
#
|
|
# Preallocation mode of QEMU image file
|
|
#
|
|
# @off: no preallocation
|
|
#
|
|
# @metadata: preallocate only for metadata
|
|
#
|
|
# @falloc: like @full preallocation but allocate disk space by
|
|
# posix_fallocate() rather than writing data.
|
|
#
|
|
# @full: preallocate all data by writing it to the device to ensure
|
|
# disk space is really available. This data may or may not be
|
|
# zero, depending on the image format and storage. @full
|
|
# preallocation also sets up metadata correctly.
|
|
#
|
|
# Since: 2.2
|
|
##
|
|
{ 'enum': 'PreallocMode',
|
|
'data': [ 'off', 'metadata', 'falloc', 'full' ] }
|
|
|
|
##
|
|
# @BLOCK_WRITE_THRESHOLD:
|
|
#
|
|
# Emitted when writes on block device reaches or exceeds the
|
|
# configured write threshold. For thin-provisioned devices, this
|
|
# means the device should be extended to avoid pausing for disk
|
|
# exhaustion. The event is one shot. Once triggered, it needs to be
|
|
# re-registered with another block-set-write-threshold command.
|
|
#
|
|
# @node-name: graph node name on which the threshold was exceeded.
|
|
#
|
|
# @amount-exceeded: amount of data which exceeded the threshold, in
|
|
# bytes.
|
|
#
|
|
# @write-threshold: last configured threshold, in bytes.
|
|
#
|
|
# Since: 2.3
|
|
##
|
|
{ 'event': 'BLOCK_WRITE_THRESHOLD',
|
|
'data': { 'node-name': 'str',
|
|
'amount-exceeded': 'uint64',
|
|
'write-threshold': 'uint64' } }
|
|
|
|
##
|
|
# @block-set-write-threshold:
|
|
#
|
|
# Change the write threshold for a block drive. An event will be
|
|
# delivered if a write to this block drive crosses the configured
|
|
# threshold. The threshold is an offset, thus must be non-negative.
|
|
# Default is no write threshold. Setting the threshold to zero
|
|
# disables it.
|
|
#
|
|
# This is useful to transparently resize thin-provisioned drives
|
|
# without the guest OS noticing.
|
|
#
|
|
# @node-name: graph node name on which the threshold must be set.
|
|
#
|
|
# @write-threshold: configured threshold for the block device, bytes.
|
|
# Use 0 to disable the threshold.
|
|
#
|
|
# Since: 2.3
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block-set-write-threshold",
|
|
# "arguments": { "node-name": "mydev",
|
|
# "write-threshold": 17179869184 } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block-set-write-threshold',
|
|
'data': { 'node-name': 'str', 'write-threshold': 'uint64' },
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @x-blockdev-change:
|
|
#
|
|
# Dynamically reconfigure the block driver state graph. It can be
|
|
# used to add, remove, insert or replace a graph node. Currently only
|
|
# the Quorum driver implements this feature to add or remove its
|
|
# child. This is useful to fix a broken quorum child.
|
|
#
|
|
# If @node is specified, it will be inserted under @parent. @child
|
|
# may not be specified in this case. If both @parent and @child are
|
|
# specified but @node is not, @child will be detached from @parent.
|
|
#
|
|
# @parent: the id or name of the parent node.
|
|
#
|
|
# @child: the name of a child under the given parent node.
|
|
#
|
|
# @node: the name of the node that will be added.
|
|
#
|
|
# Features:
|
|
#
|
|
# @unstable: This command is experimental, and its API is not stable.
|
|
# It does not support all kinds of operations, all kinds of
|
|
# children, nor all block drivers.
|
|
#
|
|
# FIXME Removing children from a quorum node means introducing
|
|
# gaps in the child indices. This cannot be represented in the
|
|
# 'children' list of BlockdevOptionsQuorum, as returned by
|
|
# .bdrv_refresh_filename().
|
|
#
|
|
# Warning: The data in a new quorum child MUST be consistent with
|
|
# that of the rest of the array.
|
|
#
|
|
# Since: 2.7
|
|
#
|
|
# Examples:
|
|
#
|
|
# 1. Add a new node to a quorum
|
|
#
|
|
# -> { "execute": "blockdev-add",
|
|
# "arguments": {
|
|
# "driver": "raw",
|
|
# "node-name": "new_node",
|
|
# "file": { "driver": "file",
|
|
# "filename": "test.raw" } } }
|
|
# <- { "return": {} }
|
|
# -> { "execute": "x-blockdev-change",
|
|
# "arguments": { "parent": "disk1",
|
|
# "node": "new_node" } }
|
|
# <- { "return": {} }
|
|
#
|
|
# 2. Delete a quorum's node
|
|
#
|
|
# -> { "execute": "x-blockdev-change",
|
|
# "arguments": { "parent": "disk1",
|
|
# "child": "children.1" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'x-blockdev-change',
|
|
'data' : { 'parent': 'str',
|
|
'*child': 'str',
|
|
'*node': 'str' },
|
|
'features': [ 'unstable' ],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @x-blockdev-set-iothread:
|
|
#
|
|
# Move @node and its children into the @iothread. If @iothread is
|
|
# null then move @node and its children into the main loop.
|
|
#
|
|
# The node must not be attached to a BlockBackend.
|
|
#
|
|
# @node-name: the name of the block driver node
|
|
#
|
|
# @iothread: the name of the IOThread object or null for the main loop
|
|
#
|
|
# @force: true if the node and its children should be moved when a
|
|
# BlockBackend is already attached
|
|
#
|
|
# Features:
|
|
#
|
|
# @unstable: This command is experimental and intended for test cases
|
|
# that need control over IOThreads only.
|
|
#
|
|
# Since: 2.12
|
|
#
|
|
# Examples:
|
|
#
|
|
# 1. Move a node into an IOThread
|
|
#
|
|
# -> { "execute": "x-blockdev-set-iothread",
|
|
# "arguments": { "node-name": "disk1",
|
|
# "iothread": "iothread0" } }
|
|
# <- { "return": {} }
|
|
#
|
|
# 2. Move a node into the main loop
|
|
#
|
|
# -> { "execute": "x-blockdev-set-iothread",
|
|
# "arguments": { "node-name": "disk1",
|
|
# "iothread": null } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'x-blockdev-set-iothread',
|
|
'data' : { 'node-name': 'str',
|
|
'iothread': 'StrOrNull',
|
|
'*force': 'bool' },
|
|
'features': [ 'unstable' ],
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @QuorumOpType:
|
|
#
|
|
# An enumeration of the quorum operation types
|
|
#
|
|
# @read: read operation
|
|
#
|
|
# @write: write operation
|
|
#
|
|
# @flush: flush operation
|
|
#
|
|
# Since: 2.6
|
|
##
|
|
{ 'enum': 'QuorumOpType',
|
|
'data': [ 'read', 'write', 'flush' ] }
|
|
|
|
##
|
|
# @QUORUM_FAILURE:
|
|
#
|
|
# Emitted by the Quorum block driver if it fails to establish a quorum
|
|
#
|
|
# @reference: device name if defined else node name
|
|
#
|
|
# @sector-num: number of the first sector of the failed read operation
|
|
#
|
|
# @sectors-count: failed read operation sector count
|
|
#
|
|
# Note: This event is rate-limited.
|
|
#
|
|
# Since: 2.0
|
|
#
|
|
# Example:
|
|
#
|
|
# <- { "event": "QUORUM_FAILURE",
|
|
# "data": { "reference": "usr1", "sector-num": 345435, "sectors-count": 5 },
|
|
# "timestamp": { "seconds": 1344522075, "microseconds": 745528 } }
|
|
##
|
|
{ 'event': 'QUORUM_FAILURE',
|
|
'data': { 'reference': 'str', 'sector-num': 'int', 'sectors-count': 'int' } }
|
|
|
|
##
|
|
# @QUORUM_REPORT_BAD:
|
|
#
|
|
# Emitted to report a corruption of a Quorum file
|
|
#
|
|
# @type: quorum operation type (Since 2.6)
|
|
#
|
|
# @error: error message. Only present on failure. This field
|
|
# contains a human-readable error message. There are no semantics
|
|
# other than that the block layer reported an error and clients
|
|
# should not try to interpret the error string.
|
|
#
|
|
# @node-name: the graph node name of the block driver state
|
|
#
|
|
# @sector-num: number of the first sector of the failed read operation
|
|
#
|
|
# @sectors-count: failed read operation sector count
|
|
#
|
|
# Note: This event is rate-limited.
|
|
#
|
|
# Since: 2.0
|
|
#
|
|
# Examples:
|
|
#
|
|
# 1. Read operation
|
|
#
|
|
# <- { "event": "QUORUM_REPORT_BAD",
|
|
# "data": { "node-name": "node0", "sector-num": 345435, "sectors-count": 5,
|
|
# "type": "read" },
|
|
# "timestamp": { "seconds": 1344522075, "microseconds": 745528 } }
|
|
#
|
|
# 2. Flush operation
|
|
#
|
|
# <- { "event": "QUORUM_REPORT_BAD",
|
|
# "data": { "node-name": "node0", "sector-num": 0, "sectors-count": 2097120,
|
|
# "type": "flush", "error": "Broken pipe" },
|
|
# "timestamp": { "seconds": 1456406829, "microseconds": 291763 } }
|
|
##
|
|
{ 'event': 'QUORUM_REPORT_BAD',
|
|
'data': { 'type': 'QuorumOpType', '*error': 'str', 'node-name': 'str',
|
|
'sector-num': 'int', 'sectors-count': 'int' } }
|
|
|
|
##
|
|
# @BlockdevSnapshotInternal:
|
|
#
|
|
# @device: the device name or node-name of a root node to generate the
|
|
# snapshot from
|
|
#
|
|
# @name: the name of the internal snapshot to be created
|
|
#
|
|
# Notes: In transaction, if @name is empty, or any snapshot matching
|
|
# @name exists, the operation will fail. Only some image formats
|
|
# support it, for example, qcow2, and rbd.
|
|
#
|
|
# Since: 1.7
|
|
##
|
|
{ 'struct': 'BlockdevSnapshotInternal',
|
|
'data': { 'device': 'str', 'name': 'str' } }
|
|
|
|
##
|
|
# @blockdev-snapshot-internal-sync:
|
|
#
|
|
# Synchronously take an internal snapshot of a block device, when the
|
|
# format of the image used supports it. If the name is an empty
|
|
# string, or a snapshot with name already exists, the operation will
|
|
# fail.
|
|
#
|
|
# For the arguments, see the documentation of
|
|
# BlockdevSnapshotInternal.
|
|
#
|
|
# Returns:
|
|
# - nothing on success
|
|
# - If @device is not a valid block device, GenericError
|
|
# - If any snapshot matching @name exists, or @name is empty,
|
|
# GenericError
|
|
# - If the format of the image used does not support it,
|
|
# GenericError
|
|
#
|
|
# Since: 1.7
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-snapshot-internal-sync",
|
|
# "arguments": { "device": "ide-hd0",
|
|
# "name": "snapshot0" }
|
|
# }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'blockdev-snapshot-internal-sync',
|
|
'data': 'BlockdevSnapshotInternal',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @blockdev-snapshot-delete-internal-sync:
|
|
#
|
|
# Synchronously delete an internal snapshot of a block device, when
|
|
# the format of the image used support it. The snapshot is identified
|
|
# by name or id or both. One of the name or id is required. Return
|
|
# SnapshotInfo for the successfully deleted snapshot.
|
|
#
|
|
# @device: the device name or node-name of a root node to delete the
|
|
# snapshot from
|
|
#
|
|
# @id: optional the snapshot's ID to be deleted
|
|
#
|
|
# @name: optional the snapshot's name to be deleted
|
|
#
|
|
# Returns:
|
|
# - SnapshotInfo on success
|
|
# - If @device is not a valid block device, GenericError
|
|
# - If snapshot not found, GenericError
|
|
# - If the format of the image used does not support it,
|
|
# GenericError
|
|
# - If @id and @name are both not specified, GenericError
|
|
#
|
|
# Since: 1.7
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-snapshot-delete-internal-sync",
|
|
# "arguments": { "device": "ide-hd0",
|
|
# "name": "snapshot0" }
|
|
# }
|
|
# <- { "return": {
|
|
# "id": "1",
|
|
# "name": "snapshot0",
|
|
# "vm-state-size": 0,
|
|
# "date-sec": 1000012,
|
|
# "date-nsec": 10,
|
|
# "vm-clock-sec": 100,
|
|
# "vm-clock-nsec": 20,
|
|
# "icount": 220414
|
|
# }
|
|
# }
|
|
##
|
|
{ 'command': 'blockdev-snapshot-delete-internal-sync',
|
|
'data': { 'device': 'str', '*id': 'str', '*name': 'str'},
|
|
'returns': 'SnapshotInfo',
|
|
'allow-preconfig': true }
|
|
|
|
##
|
|
# @DummyBlockCoreForceArrays:
|
|
#
|
|
# Not used by QMP; hack to let us use BlockGraphInfoList internally
|
|
#
|
|
# Since: 8.0
|
|
##
|
|
{ 'struct': 'DummyBlockCoreForceArrays',
|
|
'data': { 'unused-block-graph-info': ['BlockGraphInfo'] } }
|