'*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: the start byte of the mapped virtual range
+#
+# @length: the number of bytes of the mapped virtual range
+#
+# @data: whether the mapped range has data
+#
+# @zero: whether the virtual blocks are zeroed
+#
+# @depth: the depth of the mapping
+#
+# @offset: #optional the offset in file that the virtual sectors are mapped to
+#
+# @filename: #optional filename that is referred to by @offset
+#
+# Since: 2.6
+#
+##
+{ 'struct': 'MapEntry',
+ 'data': {'start': 'int', 'length': 'int', 'data': 'bool',
+ 'zero': 'bool', 'depth': 'int', '*offset': 'int',
+ '*filename': 'str' } }
+
##
# @BlockdevCacheInfo
#
# @drv: the name of the block format used to open the backing device. As of
# 0.14.0 this can be: 'blkdebug', 'bochs', 'cloop', 'cow', 'dmg',
# 'file', 'file', 'ftp', 'ftps', 'host_cdrom', 'host_device',
-# 'host_floppy', 'http', 'https', 'nbd', 'parallels', 'qcow',
+# 'http', 'https', 'nbd', 'parallels', 'qcow',
# 'qcow2', 'raw', 'tftp', 'vdi', 'vmdk', 'vpc', 'vvfat'
# 2.2: 'archipelago' added, 'cow' dropped
# 2.3: 'host_floppy' deprecated
+# 2.5: 'host_floppy' dropped
#
# @backing_file: #optional the name of the backing file (for copy-on-write)
#
#
# @image: the info of image used (since: 1.6)
#
-# @bps_max: #optional total max in bytes (Since 1.7)
+# @bps_max: #optional total throughput limit during bursts,
+# in bytes (Since 1.7)
+#
+# @bps_rd_max: #optional read throughput limit during bursts,
+# in bytes (Since 1.7)
+#
+# @bps_wr_max: #optional write throughput limit during bursts,
+# in bytes (Since 1.7)
+#
+# @iops_max: #optional total I/O operations per second during bursts,
+# in bytes (Since 1.7)
+#
+# @iops_rd_max: #optional read I/O operations per second during bursts,
+# in bytes (Since 1.7)
+#
+# @iops_wr_max: #optional write I/O operations per second during bursts,
+# in bytes (Since 1.7)
#
-# @bps_rd_max: #optional read max in bytes (Since 1.7)
+# @bps_max_length: #optional maximum length of the @bps_max burst
+# period, in seconds. (Since 2.6)
#
-# @bps_wr_max: #optional write max in bytes (Since 1.7)
+# @bps_rd_max_length: #optional maximum length of the @bps_rd_max
+# burst period, in seconds. (Since 2.6)
#
-# @iops_max: #optional total I/O operations max (Since 1.7)
+# @bps_wr_max_length: #optional maximum length of the @bps_wr_max
+# burst period, in seconds. (Since 2.6)
#
-# @iops_rd_max: #optional read I/O operations max (Since 1.7)
+# @iops_max_length: #optional maximum length of the @iops burst
+# period, in seconds. (Since 2.6)
#
-# @iops_wr_max: #optional write I/O operations max (Since 1.7)
+# @iops_rd_max_length: #optional maximum length of the @iops_rd_max
+# burst period, in seconds. (Since 2.6)
+#
+# @iops_wr_max_length: #optional maximum length of the @iops_wr_max
+# burst period, in seconds. (Since 2.6)
#
# @iops_size: #optional an I/O size in bytes (Since 1.7)
#
+# @group: #optional 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.
'*bps_max': 'int', '*bps_rd_max': 'int',
'*bps_wr_max': 'int', '*iops_max': 'int',
'*iops_rd_max': 'int', '*iops_wr_max': 'int',
- '*iops_size': 'int', 'cache': 'BlockdevCacheInfo',
+ '*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' } }
##
'data': { 'start': 'int', 'length': 'int', 'depth': 'int', 'zero': 'bool',
'data': 'bool', '*offset': 'int' } }
+##
+# @DirtyBitmapStatus:
+#
+# An enumeration of possible states that a dirty bitmap can report to the user.
+#
+# @frozen: The bitmap is currently in-use by a backup operation or block job,
+# and is immutable.
+#
+# @disabled: The bitmap is currently in-use by an internal operation and is
+# read-only. It can still be deleted.
+#
+# @active: The bitmap is actively monitoring for new writes, and can be cleared,
+# deleted, or used for backup operations.
+#
+# Since: 2.4
+##
+{ 'enum': 'DirtyBitmapStatus',
+ 'data': ['active', 'disabled', 'frozen'] }
+
##
# @BlockDirtyInfo:
#
#
# @granularity: granularity of the dirty bitmap in bytes (since 1.4)
#
-# @frozen: whether the dirty bitmap is frozen (Since 2.4)
+# @status: current status of the dirty bitmap (since 2.4)
#
# Since: 1.3
##
{ 'struct': 'BlockDirtyInfo',
'data': {'*name': 'str', 'count': 'int', 'granularity': 'uint32',
- 'frozen': 'bool'} }
+ 'status': 'DirtyBitmapStatus'} }
##
# @BlockInfo:
# @locked: True if the guest has locked this device from having its media
# removed
#
-# @tray_open: #optional True if the device has a tray and it is open
-# (only present if removable is true)
+# @tray_open: #optional True if the device's tray is open
+# (only present if it has a tray)
#
# @dirty-bitmaps: #optional dirty bitmaps information (only present if the
# driver has one or more dirty bitmaps) (Since 2.0)
##
{ 'command': 'query-block', 'returns': ['BlockInfo'] }
+
+##
+# @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_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_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_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.
+#
+# 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_flush_latency_ns': 'int',
+ 'max_flush_latency_ns': 'int', 'avg_flush_latency_ns': 'int',
+ 'avg_rd_queue_depth': 'number', 'avg_wr_queue_depth': 'number' } }
+
##
# @BlockDeviceStats:
#
# @wr_merged: Number of write requests that have been merged into another
# request (Since 2.3).
#
+# @idle_time_ns: #optional 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_flush_operations: The number of failed flush operations
+# performed by the device (Since 2.5)
+#
+# @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_flush_operations: The number of invalid flush operations
+# performed by the device (Since 2.5)
+#
+# @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)
+#
# Since: 0.14.0
##
{ 'struct': 'BlockDeviceStats',
'wr_operations': 'int', 'flush_operations': 'int',
'flush_total_time_ns': 'int', 'wr_total_time_ns': 'int',
'rd_total_time_ns': 'int', 'wr_highest_offset': 'int',
- 'rd_merged': 'int', 'wr_merged': 'int' } }
+ 'rd_merged': 'int', 'wr_merged': 'int', '*idle_time_ns': 'int',
+ 'failed_rd_operations': 'int', 'failed_wr_operations': 'int',
+ 'failed_flush_operations': 'int', 'invalid_rd_operations': 'int',
+ 'invalid_wr_operations': 'int', 'invalid_flush_operations': 'int',
+ 'account_invalid': 'bool', 'account_failed': 'bool',
+ 'timed_stats': ['BlockDeviceTimedStats'] } }
##
# @BlockStats:
#
# @none: only copy data written from now on
#
-# @dirty-bitmap: only copy data described by the dirty bitmap. Since: 2.4
+# @incremental: only copy data described by the dirty bitmap. Since: 2.4
#
# Since: 1.3
##
{ 'enum': 'MirrorSyncMode',
- 'data': ['top', 'full', 'none', 'dirty-bitmap'] }
+ 'data': ['top', 'full', 'none', 'incremental'] }
##
# @BlockJobType:
'data': [ 'existing', 'absolute-paths' ] }
##
-# @BlockdevSnapshot
+# @BlockdevSnapshotSync
#
# Either @device or @node-name must be set but not both.
#
# @mode: #optional whether and how QEMU should create a new image, default is
# 'absolute-paths'.
##
-{ 'struct': 'BlockdevSnapshot',
+{ '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 created.
+#
+# @overlay: reference to the existing block device that will become
+# the overlay of @node, as part of creating the snapshot.
+# It must not have a current backing file (this can be
+# achieved by passing "backing": "" to blockdev-add).
+#
+# Since 2.5
+##
+{ 'struct': 'BlockdevSnapshot',
+ 'data': { 'node': 'str', 'overlay': 'str' } }
+
##
# @DriveBackup
#
#
# @speed: #optional the maximum speed, in bytes per second
#
-# @bitmap: #optional the name of dirty bitmap if sync is "dirty-bitmap".
-# Must be present if sync is "dirty-bitmap", must NOT be present
+# @bitmap: #optional the name of dirty bitmap if sync is "incremental".
+# Must be present if sync is "incremental", must NOT be present
# otherwise. (Since 2.4)
#
# @on-source-error: #optional the action to take on an error on the source,
#
# Generates a synchronous snapshot of a block device.
#
-# For the arguments, see the documentation of BlockdevSnapshot.
+# For the arguments, see the documentation of BlockdevSnapshotSync.
#
# Returns: nothing on success
# If @device is not a valid block device, DeviceNotFound
# Since 0.14.0
##
{ 'command': 'blockdev-snapshot-sync',
+ 'data': 'BlockdevSnapshotSync' }
+
+
+##
+# @blockdev-snapshot
+#
+# Generates a snapshot of a block device.
+#
+# For the arguments, see the documentation of BlockdevSnapshot.
+#
+# Since 2.5
+##
+{ 'command': 'blockdev-snapshot',
'data': 'BlockdevSnapshot' }
##
# @on-target-error: #optional 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: #optional 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)
#
# Returns: nothing on success
# If @device is not a valid block device, DeviceNotFound
'sync': 'MirrorSyncMode', '*mode': 'NewImageMode',
'*speed': 'int', '*granularity': 'uint32',
'*buf-size': 'int', '*on-source-error': 'BlockdevOnError',
- '*on-target-error': 'BlockdevOnError' } }
+ '*on-target-error': 'BlockdevOnError',
+ '*unmap': 'bool' } }
##
# @BlockDirtyBitmap
{ 'command': 'block-dirty-bitmap-clear',
'data': 'BlockDirtyBitmap' }
+##
+# @blockdev-mirror
+#
+# Start mirroring a block device's writes to a new destination.
+#
+# @device: the name of the device 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: #optional 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.
+#
+# @speed: #optional 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: #optional 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: #optional maximum amount of data in flight from source to
+# target
+#
+# @on-source-error: #optional 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: #optional the action to take on an error on the target,
+# default 'report' (no limitations, since this applies to
+# a different block device than @device).
+#
+# Returns: nothing on success.
+#
+# Since 2.6
+##
+{ 'command': 'blockdev-mirror',
+ 'data': { 'device': 'str', 'target': 'str',
+ '*replaces': 'str',
+ 'sync': 'MirrorSyncMode',
+ '*speed': 'int', '*granularity': 'uint32',
+ '*buf-size': 'int', '*on-source-error': 'BlockdevOnError',
+ '*on-target-error': 'BlockdevOnError' } }
+
##
# @block_set_io_throttle:
#
# Change I/O throttle limits for a block drive.
#
+# Since QEMU 2.4, each device with I/O limits is member of a throttle
+# group.
+#
+# If two or more devices are members of the same group, the limits
+# will apply to the combined I/O of the whole group in a round-robin
+# fashion. Therefore, setting new I/O limits to a device will affect
+# the whole group.
+#
+# The name of the group can be specified using the 'group' parameter.
+# If the parameter is unset, it is assumed to be the current group of
+# that device. If it's not in any group yet, the name of the device
+# will be used as the name for its group.
+#
+# The 'group' parameter can also be used to move a device to a
+# different group. In this case the limits specified in the parameters
+# will be applied to the new group only.
+#
+# I/O limits can be disabled by setting all of them to 0. In this case
+# the device will be removed from its group and the rest of its
+# members will not be affected. The 'group' parameter is ignored.
+#
# @device: The name of the device
#
# @bps: total throughput limit in bytes per second
#
# @iops: total I/O operations per second
#
-# @ops_rd: read I/O operations per second
+# @iops_rd: read I/O operations per second
#
# @iops_wr: write I/O operations per second
#
-# @bps_max: #optional total max in bytes (Since 1.7)
+# @bps_max: #optional total throughput limit during bursts,
+# in bytes (Since 1.7)
+#
+# @bps_rd_max: #optional read throughput limit during bursts,
+# in bytes (Since 1.7)
#
-# @bps_rd_max: #optional read max in bytes (Since 1.7)
+# @bps_wr_max: #optional write throughput limit during bursts,
+# in bytes (Since 1.7)
#
-# @bps_wr_max: #optional write max in bytes (Since 1.7)
+# @iops_max: #optional total I/O operations per second during bursts,
+# in bytes (Since 1.7)
#
-# @iops_max: #optional total I/O operations max (Since 1.7)
+# @iops_rd_max: #optional read I/O operations per second during bursts,
+# in bytes (Since 1.7)
#
-# @iops_rd_max: #optional read I/O operations max (Since 1.7)
+# @iops_wr_max: #optional write I/O operations per second during bursts,
+# in bytes (Since 1.7)
#
-# @iops_wr_max: #optional write I/O operations max (Since 1.7)
+# @bps_max_length: #optional 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: #optional 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: #optional 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: #optional 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: #optional 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: #optional 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: #optional an I/O size in bytes (Since 1.7)
#
+# @group: #optional throttle group name (Since 2.4)
+#
# Returns: Nothing on success
# If @device is not a valid block device, DeviceNotFound
#
'*bps_max': 'int', '*bps_rd_max': 'int',
'*bps_wr_max': 'int', '*iops_max': 'int',
'*iops_rd_max': 'int', '*iops_wr_max': 'int',
- '*iops_size': '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' } }
##
# @block-stream:
#
# Drivers that are supported in block device operations.
#
-# @host_device, @host_cdrom, @host_floppy: Since 2.1
-# @host_floppy: deprecated since 2.3
+# @host_device, @host_cdrom: Since 2.1
#
# Since: 2.0
##
{ 'enum': 'BlockdevDriver',
'data': [ 'archipelago', 'blkdebug', 'blkverify', 'bochs', 'cloop',
'dmg', 'file', 'ftp', 'ftps', 'host_cdrom', 'host_device',
- 'host_floppy', 'http', 'https', 'null-aio', 'null-co', 'parallels',
+ 'http', 'https', 'null-aio', 'null-co', 'parallels',
'qcow', 'qcow2', 'qed', 'quorum', 'raw', 'tftp', 'vdi', 'vhdx',
'vmdk', 'vpc', 'vvfat' ] }
#
# @driver: block driver name
# @id: #optional id by which the new block device can be referred to.
-# This is a required option on the top level of blockdev-add, and
-# currently not allowed on any other level.
-# @node-name: #optional the name of a block driver state node (Since 2.0)
+# This option is only allowed on the top level of blockdev-add.
+# A BlockBackend will be created by blockdev-add if and only if
+# this option is given.
+# @node-name: #optional the name of a block driver state node (Since 2.0).
+# This option is required on the top level of blockdev-add if
+# the @id option is not given there.
# @discard: #optional discard-related options (default: ignore)
# @cache: #optional cache-related options
# @aio: #optional AIO backend (default: threads)
# (default: enospc)
# @read-only: #optional whether the block device should be read-only
# (default: false)
+# @stats-account-invalid: #optional whether to include invalid
+# operations when computing last access statistics
+# (default: true) (Since 2.5)
+# @stats-account-failed: #optional whether to include failed
+# operations when computing latency and last
+# access statistics (default: true) (Since 2.5)
+# @stats-intervals: #optional list of intervals for collecting I/O
+# statistics, in seconds (default: none) (Since 2.5)
# @detect-zeroes: #optional detect and optimize zero writes (Since 2.1)
# (default: off)
#
'*rerror': 'BlockdevOnError',
'*werror': 'BlockdevOnError',
'*read-only': 'bool',
+ '*stats-account-invalid': 'bool',
+ '*stats-account-failed': 'bool',
+ '*stats-intervals': ['int'],
'*detect-zeroes': 'BlockdevDetectZeroesOptions' } }
##
# @fat-type: #optional FAT type: 12, 16 or 32
# @floppy: #optional whether to export a floppy image (true) or
# partitioned hard disk (false; default)
+# @label: #optional 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: #optional whether to allow write operations (default: false)
#
# Since: 1.7
##
{ 'struct': 'BlockdevOptionsVVFAT',
'data': { 'dir': 'str', '*fat-type': 'int', '*floppy': 'bool',
- '*rw': 'bool' } }
+ '*label': 'str', '*rw': 'bool' } }
##
# @BlockdevOptionsGenericFormat
# @refcount-cache-size: #optional the maximum size of the refcount block cache
# in bytes (since 2.2)
#
+# @cache-clean-interval: #optional clean unused entries in the L2 and refcount
+# caches. The interval is in seconds. The default value
+# is 0 and it disables this feature (since 2.5)
+#
# Since: 1.7
##
{ 'struct': 'BlockdevOptionsQcow2',
'*overlap-check': 'Qcow2OverlapChecks',
'*cache-size': 'int',
'*l2-cache-size': 'int',
- '*refcount-cache-size': 'int' } }
+ '*refcount-cache-size': 'int',
+ '*cache-clean-interval': 'int' } }
##
# @BlkdebugEvent
#
# Trigger events supported by blkdebug.
+#
+# Since: 2.0
##
-{ 'enum': 'BlkdebugEvent',
- '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',
+{ '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',
+ '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',
+ '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' ] }
##
# TODO gluster: Wait for structured options
'host_cdrom': 'BlockdevOptionsFile',
'host_device':'BlockdevOptionsFile',
- 'host_floppy':'BlockdevOptionsFile',
'http': 'BlockdevOptionsFile',
'https': 'BlockdevOptionsFile',
# TODO iscsi: Wait for structured options
##
# @blockdev-add:
#
-# Creates a new block device.
+# Creates a new block device. If the @id option is given at the top level, a
+# BlockBackend will be created; otherwise, @node-name is mandatory at the top
+# level and no BlockBackend will be created.
#
# This command is still a work in progress. It doesn't support all
-# block drivers, it lacks a matching blockdev-del, and more. Stay
-# away from it unless you want to help with its development.
+# block drivers among other things. Stay away from it unless you want
+# to help with its development.
#
# @options: block device options for the new device
#
##
{ 'command': 'blockdev-add', 'data': { 'options': 'BlockdevOptions' } }
+##
+# @x-blockdev-del:
+#
+# Deletes a block device that has been added using blockdev-add.
+# The selected device can be either a block backend or a graph node.
+#
+# In the former case the backend will be destroyed, along with its
+# inserted medium if there's any. The command will fail if the backend
+# or its medium are in use.
+#
+# In the latter case the node will be destroyed. The command will fail
+# if the node is attached to a block backend or is otherwise being
+# used.
+#
+# One of @id or @node-name must be specified, but not both.
+#
+# This command is still a work in progress and is considered
+# experimental. Stay away from it unless you want to help with its
+# development.
+#
+# @id: #optional Name of the block backend device to delete.
+#
+# @node-name: #optional Name of the graph node to delete.
+#
+# Since: 2.5
+##
+{ 'command': 'x-blockdev-del', 'data': { '*id': 'str', '*node-name': 'str' } }
+
+##
+# @blockdev-open-tray:
+#
+# Opens a block device's tray. If there is a block driver state tree inserted as
+# a medium, it will become inaccessible to the guest (but it will remain
+# associated to the block device, so closing the tray will make it accessible
+# again).
+#
+# If the tray was already open before, this will be a no-op.
+#
+# Once the tray opens, a DEVICE_TRAY_MOVED event is emitted. There are cases in
+# which no such event will be generated, these include:
+# - if the guest has locked the tray, @force is false and the guest does not
+# respond to the eject request
+# - if the BlockBackend denoted by @device does not have a guest device attached
+# to it
+# - if the guest device does not have an actual tray
+#
+# @device: block device name
+#
+# @force: #optional if false (the default), an eject request will be sent to
+# the guest if it has locked the tray (and the tray will not be opened
+# immediately); if true, the tray will be opened regardless of whether
+# it is locked
+#
+# Since: 2.5
+##
+{ 'command': 'blockdev-open-tray',
+ 'data': { 'device': 'str',
+ '*force': 'bool' } }
+
+##
+# @blockdev-close-tray:
+#
+# Closes a block device's tray. If there is a block driver state tree associated
+# with the block device (which is currently ejected), that tree will be loaded
+# as the medium.
+#
+# If the tray was already closed before, this will be a no-op.
+#
+# @device: block device name
+#
+# Since: 2.5
+##
+{ 'command': 'blockdev-close-tray',
+ 'data': { 'device': 'str' } }
+
+##
+# @x-blockdev-remove-medium:
+#
+# Removes a medium (a block driver state tree) from a block device. That block
+# device's tray must currently be open (unless there is no attached guest
+# device).
+#
+# If the tray is open and there is no medium inserted, this will be a no-op.
+#
+# This command is still a work in progress and is considered experimental.
+# Stay away from it unless you want to help with its development.
+#
+# @device: block device name
+#
+# Since: 2.5
+##
+{ 'command': 'x-blockdev-remove-medium',
+ 'data': { 'device': 'str' } }
+
+##
+# @x-blockdev-insert-medium:
+#
+# Inserts a medium (a block driver state tree) into a block device. That block
+# device's tray must currently be open (unless there is no attached guest
+# device) and there must be no medium inserted already.
+#
+# This command is still a work in progress and is considered experimental.
+# Stay away from it unless you want to help with its development.
+#
+# @device: block device name
+#
+# @node-name: name of a node in the block driver state graph
+#
+# Since: 2.5
+##
+{ 'command': 'x-blockdev-insert-medium',
+ 'data': { 'device': 'str',
+ 'node-name': 'str'} }
+
+
+##
+# @BlockdevChangeReadOnlyMode:
+#
+# Specifies the new read-only mode of a block device subject to the
+# @blockdev-change-medium command.
+#
+# @retain: Retains the current read-only mode
+#
+# @read-only: Makes the device read-only
+#
+# @read-write: Makes the device writable
+#
+# Since: 2.3
+##
+{ 'enum': 'BlockdevChangeReadOnlyMode',
+ 'data': ['retain', 'read-only', 'read-write'] }
+
+
+##
+# @blockdev-change-medium:
+#
+# Changes the medium inserted into a block device by ejecting the current medium
+# and loading a new image file which is inserted as the new medium (this command
+# combines blockdev-open-tray, x-blockdev-remove-medium,
+# x-blockdev-insert-medium and blockdev-close-tray).
+#
+# @device: block device name
+#
+# @filename: filename of the new image to be loaded
+#
+# @format: #optional, format to open the new image with (defaults to
+# the probed format)
+#
+# @read-only-mode: #optional, change the read-only mode of the device; defaults
+# to 'retain'
+#
+# Since: 2.5
+##
+{ 'command': 'blockdev-change-medium',
+ 'data': { 'device': 'str',
+ 'filename': 'str',
+ '*format': 'str',
+ '*read-only-mode': 'BlockdevChangeReadOnlyMode' } }
+
##
# @BlockErrorAction
projects / qemu.git / blobdiff