In the 'Format specific information' section of the 'qemu-img info' command output, the supplemental information about existing QCOW2 bitmaps will be shown, such as a bitmap name, flags and granularity: image: /vz/vmprivate/VM1/harddisk.hdd file format: qcow2 virtual size: 64G (68719476736 bytes) disk size: 3.0M cluster_size: 1048576 Format specific information: compat: 1.1 lazy refcounts: true bitmaps: [0]: flags: [0]: in-use [1]: auto name: back-up1 granularity: 65536 [1]: flags: [0]: in-use [1]: auto name: back-up2 granularity: 65536 refcount bits: 16 corrupt: false Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <1549638368-530182-3-git-send-email-andrey.shinkevich@virtuozzo.com> Signed-off-by: Eric Blake <eblake@redhat.com>
5151 lines
164 KiB
Python
5151 lines
164 KiB
Python
# -*- Mode: Python -*-
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##
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# == Block core (VM unrelated)
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##
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{ 'include': 'common.json' }
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{ 'include': 'crypto.json' }
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{ 'include': 'job.json' }
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{ 'include': 'sockets.json' }
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##
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# @SnapshotInfo:
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#
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# @id: unique snapshot id
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#
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# @name: user chosen name
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#
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# @vm-state-size: size of the VM state
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#
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# @date-sec: UTC date of the snapshot in seconds
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#
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# @date-nsec: fractional part in nano seconds to be used with date-sec
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#
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# @vm-clock-sec: VM clock relative to boot in seconds
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#
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# @vm-clock-nsec: fractional part in nano seconds to be used with vm-clock-sec
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#
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# Since: 1.3
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#
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##
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{ 'struct': 'SnapshotInfo',
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'data': { 'id': 'str', 'name': 'str', 'vm-state-size': 'int',
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'date-sec': 'int', 'date-nsec': 'int',
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'vm-clock-sec': 'int', 'vm-clock-nsec': 'int' } }
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##
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# @ImageInfoSpecificQCow2EncryptionBase:
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#
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# @format: The encryption format
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#
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# Since: 2.10
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##
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{ 'struct': 'ImageInfoSpecificQCow2EncryptionBase',
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'data': { 'format': 'BlockdevQcow2EncryptionFormat'}}
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##
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# @ImageInfoSpecificQCow2Encryption:
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#
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# Since: 2.10
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##
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{ 'union': 'ImageInfoSpecificQCow2Encryption',
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'base': 'ImageInfoSpecificQCow2EncryptionBase',
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'discriminator': 'format',
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'data': { 'luks': 'QCryptoBlockInfoLUKS' } }
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##
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# @ImageInfoSpecificQCow2:
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#
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# @compat: compatibility level
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#
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# @lazy-refcounts: on or off; only valid for compat >= 1.1
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#
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# @corrupt: true if the image has been marked corrupt; only valid for
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# compat >= 1.1 (since 2.2)
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#
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# @refcount-bits: width of a refcount entry in bits (since 2.3)
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#
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# @encrypt: details about encryption parameters; only set if image
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# is encrypted (since 2.10)
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#
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# @bitmaps: A list of qcow2 bitmap details (since 4.0)
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#
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# Since: 1.7
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##
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{ 'struct': 'ImageInfoSpecificQCow2',
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'data': {
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'compat': 'str',
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'*lazy-refcounts': 'bool',
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'*corrupt': 'bool',
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'refcount-bits': 'int',
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'*encrypt': 'ImageInfoSpecificQCow2Encryption',
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'*bitmaps': ['Qcow2BitmapInfo']
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} }
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##
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# @ImageInfoSpecificVmdk:
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#
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# @create-type: The create type of VMDK image
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#
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# @cid: Content id of image
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#
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# @parent-cid: Parent VMDK image's cid
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#
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# @extents: List of extent files
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#
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# Since: 1.7
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##
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{ 'struct': 'ImageInfoSpecificVmdk',
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'data': {
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'create-type': 'str',
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'cid': 'int',
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'parent-cid': 'int',
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'extents': ['ImageInfo']
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} }
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##
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# @ImageInfoSpecific:
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#
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# A discriminated record of image format specific information structures.
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#
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# Since: 1.7
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##
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{ 'union': 'ImageInfoSpecific',
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'data': {
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'qcow2': 'ImageInfoSpecificQCow2',
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'vmdk': 'ImageInfoSpecificVmdk',
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# If we need to add block driver specific parameters for
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# LUKS in future, then we'll subclass QCryptoBlockInfoLUKS
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# to define a ImageInfoSpecificLUKS
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'luks': 'QCryptoBlockInfoLUKS'
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} }
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##
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# @ImageInfo:
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#
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# Information about a QEMU image file
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#
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# @filename: name of the image file
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#
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# @format: format of the image file
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#
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# @virtual-size: maximum capacity in bytes of the image
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#
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# @actual-size: actual size on disk in bytes of the image
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#
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# @dirty-flag: true if image is not cleanly closed
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#
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# @cluster-size: size of a cluster in bytes
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#
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# @encrypted: true if the image is encrypted
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#
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# @compressed: true if the image is compressed (Since 1.7)
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#
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# @backing-filename: name of the backing file
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#
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# @full-backing-filename: full path of the backing file
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#
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# @backing-filename-format: the format of the backing file
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#
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# @snapshots: list of VM snapshots
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#
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# @backing-image: info of the backing image (since 1.6)
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#
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# @format-specific: structure supplying additional format-specific
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# information (since 1.7)
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#
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# Since: 1.3
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#
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##
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{ 'struct': 'ImageInfo',
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'data': {'filename': 'str', 'format': 'str', '*dirty-flag': 'bool',
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'*actual-size': 'int', 'virtual-size': 'int',
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'*cluster-size': 'int', '*encrypted': 'bool', '*compressed': 'bool',
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'*backing-filename': 'str', '*full-backing-filename': 'str',
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'*backing-filename-format': 'str', '*snapshots': ['SnapshotInfo'],
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'*backing-image': 'ImageInfo',
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'*format-specific': 'ImageInfoSpecific' } }
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##
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# @ImageCheck:
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#
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# Information about a QEMU image file check
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#
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# @filename: name of the image file checked
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#
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# @format: format of the image file checked
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#
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# @check-errors: number of unexpected errors occurred during check
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#
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# @image-end-offset: offset (in bytes) where the image ends, this
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# field is present if the driver for the image format
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# supports it
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#
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# @corruptions: number of corruptions found during the check if any
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#
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# @leaks: number of leaks found during the check if any
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#
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# @corruptions-fixed: number of corruptions fixed during the check
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# if any
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#
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# @leaks-fixed: number of leaks fixed during the check if any
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#
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# @total-clusters: total number of clusters, this field is present
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# if the driver for the image format supports it
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#
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# @allocated-clusters: total number of allocated clusters, this
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# field is present if the driver for the image format
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# supports it
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#
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# @fragmented-clusters: total number of fragmented clusters, this
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# field is present if the driver for the image format
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# supports it
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#
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# @compressed-clusters: total number of compressed clusters, this
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# field is present if the driver for the image format
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# supports it
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#
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# Since: 1.4
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#
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##
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{ 'struct': 'ImageCheck',
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'data': {'filename': 'str', 'format': 'str', 'check-errors': 'int',
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'*image-end-offset': 'int', '*corruptions': 'int', '*leaks': 'int',
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'*corruptions-fixed': 'int', '*leaks-fixed': 'int',
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'*total-clusters': 'int', '*allocated-clusters': 'int',
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'*fragmented-clusters': 'int', '*compressed-clusters': 'int' } }
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##
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# @MapEntry:
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#
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# Mapping information from a virtual block range to a host file range
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#
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# @start: the start byte of the mapped virtual range
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#
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# @length: the number of bytes of the mapped virtual range
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#
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# @data: whether the mapped range has data
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#
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# @zero: whether the virtual blocks are zeroed
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#
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# @depth: the depth of the mapping
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#
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# @offset: the offset in file that the virtual sectors are mapped to
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#
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# @filename: filename that is referred to by @offset
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#
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# Since: 2.6
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#
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##
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{ 'struct': 'MapEntry',
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'data': {'start': 'int', 'length': 'int', 'data': 'bool',
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'zero': 'bool', 'depth': 'int', '*offset': 'int',
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'*filename': 'str' } }
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##
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# @BlockdevCacheInfo:
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#
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# Cache mode information for a block device
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#
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# @writeback: true if writeback mode is enabled
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# @direct: true if the host page cache is bypassed (O_DIRECT)
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# @no-flush: true if flush requests are ignored for the device
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#
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# Since: 2.3
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##
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{ 'struct': 'BlockdevCacheInfo',
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'data': { 'writeback': 'bool',
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'direct': 'bool',
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'no-flush': 'bool' } }
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##
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# @BlockDeviceInfo:
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#
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# Information about the backing device for a block device.
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#
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# @file: the filename of the backing device
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#
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# @node-name: the name of the block driver node (Since 2.0)
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#
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# @ro: true if the backing device was open read-only
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#
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# @drv: the name of the block format used to open the backing device. As of
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# 0.14.0 this can be: 'blkdebug', 'bochs', 'cloop', 'cow', 'dmg',
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# 'file', 'file', 'ftp', 'ftps', 'host_cdrom', 'host_device',
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# 'http', 'https', 'luks', 'nbd', 'parallels', 'qcow',
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# 'qcow2', 'raw', 'vdi', 'vmdk', 'vpc', 'vvfat'
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# 2.2: 'archipelago' added, 'cow' dropped
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# 2.3: 'host_floppy' deprecated
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# 2.5: 'host_floppy' dropped
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# 2.6: 'luks' added
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# 2.8: 'replication' added, 'tftp' dropped
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# 2.9: 'archipelago' dropped
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#
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# @backing_file: the name of the backing file (for copy-on-write)
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#
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# @backing_file_depth: number of files in the backing file chain (since: 1.2)
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#
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# @encrypted: true if the backing device is encrypted
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#
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# @encryption_key_missing: Deprecated; always false
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#
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# @detect_zeroes: detect and optimize zero writes (Since 2.1)
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#
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# @bps: total throughput limit in bytes per second is specified
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#
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# @bps_rd: read throughput limit in bytes per second is specified
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#
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# @bps_wr: write throughput limit in bytes per second is specified
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#
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# @iops: total I/O operations per second is specified
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#
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# @iops_rd: read I/O operations per second is specified
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#
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# @iops_wr: write I/O operations per second is specified
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#
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# @image: the info of image used (since: 1.6)
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#
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# @bps_max: total throughput limit during bursts,
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# in bytes (Since 1.7)
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#
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# @bps_rd_max: read throughput limit during bursts,
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# in bytes (Since 1.7)
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#
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# @bps_wr_max: write throughput limit during bursts,
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# in bytes (Since 1.7)
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#
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# @iops_max: total I/O operations per second during bursts,
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# in bytes (Since 1.7)
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#
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# @iops_rd_max: read I/O operations per second during bursts,
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# in bytes (Since 1.7)
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#
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# @iops_wr_max: write I/O operations per second during bursts,
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# in bytes (Since 1.7)
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#
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# @bps_max_length: maximum length of the @bps_max burst
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# period, in seconds. (Since 2.6)
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#
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# @bps_rd_max_length: maximum length of the @bps_rd_max
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# burst period, in seconds. (Since 2.6)
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#
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# @bps_wr_max_length: maximum length of the @bps_wr_max
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# burst period, in seconds. (Since 2.6)
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#
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# @iops_max_length: maximum length of the @iops burst
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# period, in seconds. (Since 2.6)
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#
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# @iops_rd_max_length: maximum length of the @iops_rd_max
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# burst period, in seconds. (Since 2.6)
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#
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# @iops_wr_max_length: maximum length of the @iops_wr_max
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# burst period, in seconds. (Since 2.6)
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#
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# @iops_size: an I/O size in bytes (Since 1.7)
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#
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# @group: throttle group name (Since 2.4)
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#
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# @cache: the cache mode used for the block device (since: 2.3)
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#
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# @write_threshold: configured write threshold for the device.
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# 0 if disabled. (Since 2.3)
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#
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# Since: 0.14.0
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#
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##
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{ 'struct': 'BlockDeviceInfo',
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'data': { 'file': 'str', '*node-name': 'str', 'ro': 'bool', 'drv': 'str',
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'*backing_file': 'str', 'backing_file_depth': 'int',
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'encrypted': 'bool', 'encryption_key_missing': 'bool',
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'detect_zeroes': 'BlockdevDetectZeroesOptions',
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'bps': 'int', 'bps_rd': 'int', 'bps_wr': 'int',
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'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int',
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'image': 'ImageInfo',
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'*bps_max': 'int', '*bps_rd_max': 'int',
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'*bps_wr_max': 'int', '*iops_max': 'int',
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'*iops_rd_max': 'int', '*iops_wr_max': 'int',
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'*bps_max_length': 'int', '*bps_rd_max_length': 'int',
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'*bps_wr_max_length': 'int', '*iops_max_length': 'int',
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'*iops_rd_max_length': 'int', '*iops_wr_max_length': 'int',
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'*iops_size': 'int', '*group': 'str', 'cache': 'BlockdevCacheInfo',
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'write_threshold': 'int' } }
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##
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# @BlockDeviceIoStatus:
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#
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# An enumeration of block device I/O status.
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#
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# @ok: The last I/O operation has succeeded
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#
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# @failed: The last I/O operation has failed
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#
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# @nospace: The last I/O operation has failed due to a no-space condition
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#
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# Since: 1.0
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##
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{ 'enum': 'BlockDeviceIoStatus', 'data': [ 'ok', 'failed', 'nospace' ] }
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##
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# @BlockDeviceMapEntry:
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#
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# Entry in the metadata map of the device (returned by "qemu-img map")
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#
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# @start: Offset in the image of the first byte described by this entry
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# (in bytes)
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#
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# @length: Length of the range described by this entry (in bytes)
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#
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# @depth: Number of layers (0 = top image, 1 = top image's backing file, etc.)
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# before reaching one for which the range is allocated. The value is
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# in the range 0 to the depth of the image chain - 1.
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#
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# @zero: the sectors in this range read as zeros
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#
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# @data: reading the image will actually read data from a file (in particular,
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# if @offset is present this means that the sectors are not simply
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# preallocated, but contain actual data in raw format)
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#
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# @offset: if present, the image file stores the data for this range in
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# raw format at the given offset.
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#
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# Since: 1.7
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##
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{ 'struct': 'BlockDeviceMapEntry',
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'data': { 'start': 'int', 'length': 'int', 'depth': 'int', 'zero': 'bool',
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'data': 'bool', '*offset': 'int' } }
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##
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# @DirtyBitmapStatus:
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#
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# An enumeration of possible states that a dirty bitmap can report to the user.
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#
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# @frozen: The bitmap is currently in-use by a backup operation or block job,
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# and is immutable.
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#
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# @disabled: The bitmap is currently in-use by an internal operation and is
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# read-only. It can still be deleted.
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#
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# @active: The bitmap is actively monitoring for new writes, and can be cleared,
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# deleted, or used for backup operations.
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#
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# @locked: The bitmap is currently in-use by some operation and can not be
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# cleared, deleted, or used for backup operations. (Since 2.12)
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#
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# Since: 2.4
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##
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{ 'enum': 'DirtyBitmapStatus',
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'data': ['active', 'disabled', 'frozen', 'locked'] }
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##
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# @BlockDirtyInfo:
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#
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# Block dirty bitmap information.
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#
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# @name: the name of the dirty bitmap (Since 2.4)
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#
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# @count: number of dirty bytes according to the dirty bitmap
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#
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# @granularity: granularity of the dirty bitmap in bytes (since 1.4)
|
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#
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# @status: current status of the dirty bitmap (since 2.4)
|
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#
|
|
# Since: 1.3
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##
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{ 'struct': 'BlockDirtyInfo',
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'data': {'*name': 'str', 'count': 'int', 'granularity': 'uint32',
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'status': 'DirtyBitmapStatus'} }
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|
|
##
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|
# @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.
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|
# The presence of this flag in an offline image means that the bitmap
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# was not saved correctly after its last usage, and may contain
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# inconsistent data.
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#
|
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# @auto: The bitmap must reflect all changes of the virtual disk by any
|
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# application that would write to this qcow2 file.
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#
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# Since: 4.0
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|
##
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{ 'enum': 'Qcow2BitmapInfoFlags',
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'data': ['in-use', 'auto'] }
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|
|
|
##
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# @Qcow2BitmapInfo:
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#
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# Qcow2 bitmap information.
|
|
#
|
|
# @name: the name of the bitmap
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#
|
|
# @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.
|
|
# len(@bins) = len(@boundaries) + 1
|
|
# 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: 2.12
|
|
##
|
|
{ 'struct': 'BlockLatencyHistogramInfo',
|
|
'data': {'boundaries': ['uint64'], 'bins': ['uint64'] } }
|
|
|
|
##
|
|
# @x-block-latency-histogram-set:
|
|
#
|
|
# Manage read, write and flush latency histograms for the device.
|
|
#
|
|
# If only @device parameter is specified, remove all present latency histograms
|
|
# for the device. Otherwise, add/reset some of (or all) latency histograms.
|
|
#
|
|
# @device: device name to set latency histogram for.
|
|
#
|
|
# @boundaries: list of interval boundary values (see description in
|
|
# BlockLatencyHistogramInfo definition). If specified, all
|
|
# latency histograms are removed, and empty ones created for all
|
|
# io types with intervals corresponding to @boundaries (except for
|
|
# io types, for which specific boundaries are set through the
|
|
# following parameters).
|
|
#
|
|
# @boundaries-read: list of interval boundary values for read latency
|
|
# histogram. If specified, old read latency histogram is
|
|
# removed, and empty one created with intervals
|
|
# corresponding to @boundaries-read. The parameter has higher
|
|
# priority then @boundaries.
|
|
#
|
|
# @boundaries-write: list of interval boundary values for write latency
|
|
# histogram.
|
|
#
|
|
# @boundaries-flush: list of interval boundary values for flush latency
|
|
# histogram.
|
|
#
|
|
# Returns: error if device is not found or any boundary arrays are invalid.
|
|
#
|
|
# Since: 2.12
|
|
#
|
|
# Example: set new histograms for all io types with intervals
|
|
# [0, 10), [10, 50), [50, 100), [100, +inf):
|
|
#
|
|
# -> { "execute": "block-latency-histogram-set",
|
|
# "arguments": { "device": "drive0",
|
|
# "boundaries": [10, 50, 100] } }
|
|
# <- { "return": {} }
|
|
#
|
|
# Example: set new histogram only for write, other histograms will remain
|
|
# not changed (or not created):
|
|
#
|
|
# -> { "execute": "block-latency-histogram-set",
|
|
# "arguments": { "device": "drive0",
|
|
# "boundaries-write": [10, 50, 100] } }
|
|
# <- { "return": {} }
|
|
#
|
|
# Example: set new histograms with the following intervals:
|
|
# read, flush: [0, 10), [10, 50), [50, 100), [100, +inf)
|
|
# write: [0, 1000), [1000, 5000), [5000, +inf)
|
|
#
|
|
# -> { "execute": "block-latency-histogram-set",
|
|
# "arguments": { "device": "drive0",
|
|
# "boundaries": [10, 50, 100],
|
|
# "boundaries-write": [1000, 5000] } }
|
|
# <- { "return": {} }
|
|
#
|
|
# Example: remove all latency histograms:
|
|
#
|
|
# -> { "execute": "block-latency-histogram-set",
|
|
# "arguments": { "device": "drive0" } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'x-block-latency-histogram-set',
|
|
'data': {'device': 'str',
|
|
'*boundaries': ['uint64'],
|
|
'*boundaries-read': ['uint64'],
|
|
'*boundaries-write': ['uint64'],
|
|
'*boundaries-flush': ['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)
|
|
#
|
|
# @dirty-bitmaps: dirty bitmaps information (only present if the
|
|
# driver has one or more dirty bitmaps) (Since 2.0)
|
|
#
|
|
# @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: 0.14.0
|
|
##
|
|
{ 'struct': 'BlockInfo',
|
|
'data': {'device': 'str', '*qdev': 'str', 'type': 'str', 'removable': 'bool',
|
|
'locked': 'bool', '*inserted': 'BlockDeviceInfo',
|
|
'*tray_open': 'bool', '*io-status': 'BlockDeviceIoStatus',
|
|
'*dirty-bitmaps': ['BlockDirtyInfo'] } }
|
|
|
|
##
|
|
# @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 bitmap creation, may
|
|
# require additional space and is not covered here.
|
|
#
|
|
# @required: Size required for a new image file, in bytes.
|
|
#
|
|
# @fully-allocated: Image file size, in bytes, once data has been written
|
|
# to all sectors.
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'struct': 'BlockMeasureInfo',
|
|
'data': {'required': 'int', 'fully-allocated': '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: 0.14.0
|
|
#
|
|
# 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'] }
|
|
|
|
|
|
##
|
|
# @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:
|
|
#
|
|
# 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.
|
|
#
|
|
# @rd_operations: The number of read operations performed by the device.
|
|
#
|
|
# @wr_operations: The number of write operations performed by the device.
|
|
#
|
|
# @flush_operations: The number of cache flush operations performed by the
|
|
# device (since 0.15.0)
|
|
#
|
|
# @flush_total_time_ns: Total time spend on cache flushes in nano-seconds
|
|
# (since 0.15.0).
|
|
#
|
|
# @wr_total_time_ns: Total time spend on writes in nano-seconds (since 0.15.0).
|
|
#
|
|
# @rd_total_time_ns: Total_time_spend on reads in nano-seconds (since 0.15.0).
|
|
#
|
|
# @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).
|
|
#
|
|
# @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_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)
|
|
#
|
|
# @x_rd_latency_histogram: @BlockLatencyHistogramInfo. (Since 2.12)
|
|
#
|
|
# @x_wr_latency_histogram: @BlockLatencyHistogramInfo. (Since 2.12)
|
|
#
|
|
# @x_flush_latency_histogram: @BlockLatencyHistogramInfo. (Since 2.12)
|
|
#
|
|
# Since: 0.14.0
|
|
##
|
|
{ 'struct': 'BlockDeviceStats',
|
|
'data': {'rd_bytes': 'int', 'wr_bytes': 'int', 'rd_operations': 'int',
|
|
'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', '*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'],
|
|
'*x_rd_latency_histogram': 'BlockLatencyHistogramInfo',
|
|
'*x_wr_latency_histogram': 'BlockLatencyHistogramInfo',
|
|
'*x_flush_latency_histogram': 'BlockLatencyHistogramInfo' } }
|
|
|
|
##
|
|
# @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.
|
|
#
|
|
# @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: 0.14.0
|
|
##
|
|
{ 'struct': 'BlockStats',
|
|
'data': {'*device': 'str', '*qdev': 'str', '*node-name': 'str',
|
|
'stats': 'BlockDeviceStats',
|
|
'*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: 0.14.0
|
|
#
|
|
# 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'] }
|
|
|
|
##
|
|
# @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)
|
|
#
|
|
# @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
|
|
#
|
|
# Since: 1.3
|
|
##
|
|
{ 'enum': 'MirrorSyncMode',
|
|
'data': ['top', 'full', 'none', 'incremental'] }
|
|
|
|
##
|
|
# @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'] }
|
|
|
|
##
|
|
# @block_passwd:
|
|
#
|
|
# This command sets the password of a block device that has not been open
|
|
# with a password and requires one.
|
|
#
|
|
# This command is now obsolete and will always return an error since 2.10
|
|
#
|
|
##
|
|
{ 'command': 'block_passwd',
|
|
'data': { '*device': 'str',
|
|
'*node-name': 'str',
|
|
'password': 'str' } }
|
|
|
|
##
|
|
# @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: 0.14.0
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block_resize",
|
|
# "arguments": { "device": "scratch", "size": 1073741824 } }
|
|
# <- { "return": {} }
|
|
#
|
|
##
|
|
{ 'command': 'block_resize',
|
|
'data': { '*device': 'str',
|
|
'*node-name': 'str',
|
|
'size': 'int' } }
|
|
|
|
##
|
|
# @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 generate the snapshot from.
|
|
#
|
|
# @node-name: graph node name to generate the snapshot from (Since 2.0)
|
|
#
|
|
# @snapshot-file: the target of the new image. If the file exists, or
|
|
# if it is a device, the snapshot 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 snapshot 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 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": null to blockdev-add).
|
|
#
|
|
# Since: 2.5
|
|
##
|
|
{ 'struct': 'BlockdevSnapshot',
|
|
'data': { 'node': 'str', 'overlay': 'str' } }
|
|
|
|
##
|
|
# @DriveBackup:
|
|
#
|
|
# @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.
|
|
#
|
|
# @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
|
|
#
|
|
# @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).
|
|
#
|
|
# @mode: whether and how QEMU should create a new image, default is
|
|
# 'absolute-paths'.
|
|
#
|
|
# @speed: the maximum speed, in bytes per second
|
|
#
|
|
# @bitmap: the name of dirty bitmap if sync is "incremental".
|
|
# Must be present if sync is "incremental", must NOT be present
|
|
# otherwise. (Since 2.4)
|
|
#
|
|
# @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)
|
|
#
|
|
# 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: 1.6
|
|
##
|
|
{ 'struct': 'DriveBackup',
|
|
'data': { '*job-id': 'str', 'device': 'str', 'target': 'str',
|
|
'*format': 'str', 'sync': 'MirrorSyncMode',
|
|
'*mode': 'NewImageMode', '*speed': 'int',
|
|
'*bitmap': 'str', '*compress': 'bool',
|
|
'*on-source-error': 'BlockdevOnError',
|
|
'*on-target-error': 'BlockdevOnError',
|
|
'*auto-finalize': 'bool', '*auto-dismiss': 'bool' } }
|
|
|
|
##
|
|
# @BlockdevBackup:
|
|
#
|
|
# @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.
|
|
#
|
|
# @target: the device name or node-name of the backup target node.
|
|
#
|
|
# @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).
|
|
#
|
|
# @speed: the maximum speed, in bytes per second. The default is 0,
|
|
# for unlimited.
|
|
#
|
|
# @bitmap: the name of dirty bitmap if sync is "incremental".
|
|
# Must be present if sync is "incremental", must NOT be present
|
|
# otherwise. (Since 3.1)
|
|
#
|
|
# @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)
|
|
#
|
|
# 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: 2.3
|
|
##
|
|
{ 'struct': 'BlockdevBackup',
|
|
'data': { '*job-id': 'str', 'device': 'str', 'target': 'str',
|
|
'sync': 'MirrorSyncMode', '*speed': 'int',
|
|
'*bitmap': 'str', '*compress': 'bool',
|
|
'*on-source-error': 'BlockdevOnError',
|
|
'*on-target-error': 'BlockdevOnError',
|
|
'*auto-finalize': 'bool', '*auto-dismiss': 'bool' } }
|
|
|
|
##
|
|
# @blockdev-snapshot-sync:
|
|
#
|
|
# Generates 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: 0.14.0
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-snapshot-sync",
|
|
# "arguments": { "device": "ide-hd0",
|
|
# "snapshot-file":
|
|
# "/some/place/my-image",
|
|
# "format": "qcow2" } }
|
|
# <- { "return": {} }
|
|
#
|
|
##
|
|
{ 'command': 'blockdev-snapshot-sync',
|
|
'data': 'BlockdevSnapshotSync' }
|
|
|
|
|
|
##
|
|
# @blockdev-snapshot:
|
|
#
|
|
# Generates a snapshot of a block device.
|
|
#
|
|
# Create 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.
|
|
#
|
|
# 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' }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @block-commit:
|
|
#
|
|
# Live commit of data from overlay image nodes into backing nodes - i.e.,
|
|
# writes data between 'top' and 'base' into 'base'.
|
|
#
|
|
# @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 (deprecated, use @base-node instead)
|
|
#
|
|
# @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 (deprecated, use @base-node instead)
|
|
#
|
|
# @backing-file: The backing file string to write into the overlay
|
|
# image of 'top'. If 'top' is the active layer,
|
|
# 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)
|
|
#
|
|
# If top == base, that is an error.
|
|
# If top == active, the job will not be completed by itself,
|
|
# 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.
|
|
#
|
|
# @speed: the maximum speed, in bytes per second
|
|
#
|
|
# @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)
|
|
#
|
|
# 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': 'str', '*top-node': 'str', '*top': 'str',
|
|
'*backing-file': 'str', '*speed': 'int',
|
|
'*filter-node-name': 'str',
|
|
'*auto-finalize': 'bool', '*auto-dismiss': 'bool' } }
|
|
|
|
##
|
|
# @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.
|
|
#
|
|
# 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' }
|
|
|
|
##
|
|
# @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' }
|
|
|
|
|
|
##
|
|
# @query-named-block-nodes:
|
|
#
|
|
# Get the named block driver list
|
|
#
|
|
# 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,
|
|
# "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' ] }
|
|
|
|
##
|
|
# @XDbgBlockGraphNodeType:
|
|
#
|
|
# @block-backend: corresponds to BlockBackend
|
|
#
|
|
# @block-job: corresonds 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.
|
|
#
|
|
# @graph-mod: This permission is required to change the node that this
|
|
# BdrvChild points to.
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'enum': 'BlockPermission',
|
|
'data': [ 'consistent-read', 'write', 'write-unchanged', 'resize',
|
|
'graph-mod' ] }
|
|
##
|
|
# @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.
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'command': 'x-debug-query-block-graph', 'returns': 'XDbgBlockGraph' }
|
|
|
|
##
|
|
# @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' }
|
|
|
|
##
|
|
# @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. (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
|
|
#
|
|
# @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)
|
|
#
|
|
# @autoload: ignored and deprecated since 2.12.
|
|
# Currently, all dirty tracking bitmaps are loaded from Qcow2 on
|
|
# open.
|
|
#
|
|
# @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', '*autoload': 'bool', '*disabled': 'bool' } }
|
|
|
|
##
|
|
# @BlockDirtyBitmapMerge:
|
|
#
|
|
# @node: name of device/node which the bitmap is tracking
|
|
#
|
|
# @target: name of the destination dirty bitmap
|
|
#
|
|
# @bitmaps: name(s) of the source dirty bitmap(s)
|
|
#
|
|
# Since: 4.0
|
|
##
|
|
{ 'struct': 'BlockDirtyBitmapMerge',
|
|
'data': { 'node': 'str', 'target': 'str', 'bitmaps': ['str'] } }
|
|
|
|
##
|
|
# @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' }
|
|
|
|
##
|
|
# @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' }
|
|
|
|
##
|
|
# @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' }
|
|
|
|
##
|
|
# @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' }
|
|
|
|
##
|
|
# @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' }
|
|
|
|
##
|
|
# @block-dirty-bitmap-merge:
|
|
#
|
|
# Merge dirty bitmaps listed in @bitmaps to the @target dirty bitmap.
|
|
# The @bitmaps dirty bitmaps are unchanged.
|
|
# On error, @target is unchanged.
|
|
#
|
|
# 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' }
|
|
|
|
##
|
|
# @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
|
|
#
|
|
# 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' }
|
|
|
|
##
|
|
# @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.
|
|
#
|
|
# @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' } }
|
|
|
|
##
|
|
# @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.
|
|
#
|
|
# Returns: Nothing on success
|
|
# If @device is not a valid block device, DeviceNotFound
|
|
#
|
|
# Since: 1.1
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "block_set_io_throttle",
|
|
# "arguments": { "id": "virtio-blk-pci0/virtio-backend",
|
|
# "bps": 0,
|
|
# "bps_rd": 0,
|
|
# "bps_wr": 0,
|
|
# "iops": 512,
|
|
# "iops_rd": 0,
|
|
# "iops_wr": 0,
|
|
# "bps_max": 0,
|
|
# "bps_rd_max": 0,
|
|
# "bps_wr_max": 0,
|
|
# "iops_max": 0,
|
|
# "iops_rd_max": 0,
|
|
# "iops_wr_max": 0,
|
|
# "bps_max_length": 0,
|
|
# "iops_size": 0 } }
|
|
# <- { "return": {} }
|
|
#
|
|
# -> { "execute": "block_set_io_throttle",
|
|
# "arguments": { "id": "ide0-1-0",
|
|
# "bps": 1000000,
|
|
# "bps_rd": 0,
|
|
# "bps_wr": 0,
|
|
# "iops": 0,
|
|
# "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,
|
|
# "bps_max_length": 60,
|
|
# "iops_size": 0 } }
|
|
# <- { "return": {} }
|
|
##
|
|
{ 'command': 'block_set_io_throttle', 'boxed': true,
|
|
'data': 'BlockIOThrottle' }
|
|
|
|
##
|
|
# @BlockIOThrottle:
|
|
#
|
|
# A set of parameters describing block throttling.
|
|
#
|
|
# @device: Block device name (deprecated, use @id instead)
|
|
#
|
|
# @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)
|
|
#
|
|
# Since: 1.1
|
|
##
|
|
{ 'struct': 'BlockIOThrottle',
|
|
'data': { '*device': 'str', '*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' } }
|
|
|
|
##
|
|
# @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. When streaming completes the image file will have the base
|
|
# file as its backing file. This can be used to stream a subset of the backing
|
|
# file chain instead of flattening the entire image.
|
|
#
|
|
# On successful completion the image file is updated to drop the backing file
|
|
# and the BLOCK_JOB_COMPLETED event is emitted.
|
|
#
|
|
# @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 is also set.
|
|
#
|
|
# @base-node: the node name of the backing file.
|
|
# It cannot be set if @base is also set. (Since 2.8)
|
|
#
|
|
# @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.
|
|
#
|
|
# @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', '*speed': 'int',
|
|
'*on-error': 'BlockdevOnError',
|
|
'*auto-finalize': 'bool', '*auto-dismiss': 'bool' } }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @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)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'BlockdevAioOptions',
|
|
'data': [ 'threads', 'native' ] }
|
|
|
|
##
|
|
# @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.
|
|
#
|
|
# @vxhs: Since 2.10
|
|
# @throttle: Since 2.11
|
|
# @nvme: Since 2.12
|
|
# @copy-on-read: Since 3.0
|
|
# @blklogwrites: Since 3.0
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'enum': 'BlockdevDriver',
|
|
'data': [ 'blkdebug', 'blklogwrites', 'blkverify', 'bochs', 'cloop',
|
|
'copy-on-read', 'dmg', 'file', 'ftp', 'ftps', 'gluster',
|
|
'host_cdrom', 'host_device', 'http', 'https', 'iscsi', 'luks',
|
|
'nbd', 'nfs', 'null-aio', 'null-co', 'nvme', 'parallels', 'qcow',
|
|
'qcow2', 'qed', 'quorum', 'raw', 'rbd',
|
|
{ 'name': 'replication', 'if': 'defined(CONFIG_REPLICATION)' },
|
|
'sheepdog',
|
|
'ssh', 'throttle', 'vdi', 'vhdx', 'vmdk', 'vpc', 'vvfat', 'vxhs' ] }
|
|
|
|
##
|
|
# @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)
|
|
# @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)
|
|
# @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)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsFile',
|
|
'data': { 'filename': 'str',
|
|
'*pr-manager': 'str',
|
|
'*locking': 'OnOffAuto',
|
|
'*aio': 'BlockdevAioOptions',
|
|
'*x-check-cache-dropped': 'bool' } }
|
|
|
|
##
|
|
# @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)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsNull',
|
|
'data': { '*size': 'int', '*latency-ns': 'uint64' } }
|
|
|
|
##
|
|
# @BlockdevOptionsNVMe:
|
|
#
|
|
# Driver specific block device options for the NVMe backend.
|
|
#
|
|
# @device: controller address of the NVMe device.
|
|
# @namespace: namespace number of the device, starting from 1.
|
|
#
|
|
# 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 venctors
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'enum': 'BlockdevQcow2EncryptionFormat',
|
|
'data': [ 'aes', 'luks' ] }
|
|
|
|
##
|
|
# @BlockdevQcow2Encryption:
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'union': 'BlockdevQcow2Encryption',
|
|
'base': { 'format': 'BlockdevQcow2EncryptionFormat' },
|
|
'discriminator': 'format',
|
|
'data': { 'aes': 'QCryptoBlockOptionsQCow',
|
|
'luks': 'QCryptoBlockOptionsLUKS'} }
|
|
|
|
##
|
|
# @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
|
|
#
|
|
# @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)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsQcow2',
|
|
'base': 'BlockdevOptionsGenericCOWFormat',
|
|
'data': { '*lazy-refcounts': 'bool',
|
|
'*pass-discard-request': 'bool',
|
|
'*pass-discard-snapshot': 'bool',
|
|
'*pass-discard-other': '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' } }
|
|
|
|
##
|
|
# @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
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'enum': 'SshHostKeyCheckHashType',
|
|
'data': [ 'md5', 'sha1' ] }
|
|
|
|
##
|
|
# @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)
|
|
#
|
|
# 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'] }
|
|
|
|
##
|
|
# @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"
|
|
#
|
|
# @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',
|
|
'*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
|
|
#
|
|
# 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'] } }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @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' ] }
|
|
|
|
##
|
|
# @BlockdevOptionsRbd:
|
|
#
|
|
# @pool: Ceph pool name.
|
|
#
|
|
# @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.
|
|
#
|
|
# @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',
|
|
'image': 'str',
|
|
'*conf': 'str',
|
|
'*snapshot': 'str',
|
|
'*user': 'str',
|
|
'*auth-client-required': ['RbdAuthMode'],
|
|
'*key-secret': 'str',
|
|
'*server': ['InetSocketAddressBase'] } }
|
|
|
|
##
|
|
# @BlockdevOptionsSheepdog:
|
|
#
|
|
# Driver specific block device options for sheepdog
|
|
#
|
|
# @vdi: Virtual disk image name
|
|
# @server: The Sheepdog server to connect to
|
|
# @snap-id: Snapshot ID
|
|
# @tag: Snapshot tag name
|
|
#
|
|
# Only one of @snap-id and @tag may be present.
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsSheepdog',
|
|
'data': { 'server': 'SocketAddress',
|
|
'vdi': 'str',
|
|
'*snap-id': 'uint32',
|
|
'*tag': 'str' } }
|
|
|
|
##
|
|
# @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': 'defined(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': 'defined(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
|
|
#
|
|
# @x-dirty-bitmap: A "qemu:dirty-bitmap:NAME" string to query in place of
|
|
# traditional "base:allocation" block status (see
|
|
# NBD_OPT_LIST_META_CONTEXT in the NBD protocol) (since 3.0)
|
|
#
|
|
# Since: 2.9
|
|
##
|
|
{ 'struct': 'BlockdevOptionsNbd',
|
|
'data': { 'server': 'SocketAddress',
|
|
'*export': 'str',
|
|
'*tls-creds': 'str',
|
|
'*x-dirty-bitmap': 'str' } }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @BlockdevOptionsVxHS:
|
|
#
|
|
# Driver specific block device options for VxHS
|
|
#
|
|
# @vdisk-id: UUID of VxHS volume
|
|
# @server: vxhs server IP, port
|
|
# @tls-creds: TLS credentials ID
|
|
#
|
|
# Since: 2.10
|
|
##
|
|
{ 'struct': 'BlockdevOptionsVxHS',
|
|
'data': { 'vdisk-id': 'str',
|
|
'server': 'InetSocketAddressBase',
|
|
'*tls-creds': 'str' } }
|
|
|
|
##
|
|
# @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'
|
|
} }
|
|
##
|
|
# @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',
|
|
'bochs': 'BlockdevOptionsGenericFormat',
|
|
'cloop': 'BlockdevOptionsGenericFormat',
|
|
'copy-on-read':'BlockdevOptionsGenericFormat',
|
|
'dmg': 'BlockdevOptionsGenericFormat',
|
|
'file': 'BlockdevOptionsFile',
|
|
'ftp': 'BlockdevOptionsCurlFtp',
|
|
'ftps': 'BlockdevOptionsCurlFtps',
|
|
'gluster': 'BlockdevOptionsGluster',
|
|
'host_cdrom': 'BlockdevOptionsFile',
|
|
'host_device':'BlockdevOptionsFile',
|
|
'http': 'BlockdevOptionsCurlHttp',
|
|
'https': 'BlockdevOptionsCurlHttps',
|
|
'iscsi': 'BlockdevOptionsIscsi',
|
|
'luks': 'BlockdevOptionsLUKS',
|
|
'nbd': 'BlockdevOptionsNbd',
|
|
'nfs': 'BlockdevOptionsNfs',
|
|
'null-aio': 'BlockdevOptionsNull',
|
|
'null-co': 'BlockdevOptionsNull',
|
|
'nvme': 'BlockdevOptionsNVMe',
|
|
'parallels': 'BlockdevOptionsGenericFormat',
|
|
'qcow2': 'BlockdevOptionsQcow2',
|
|
'qcow': 'BlockdevOptionsQcow',
|
|
'qed': 'BlockdevOptionsGenericCOWFormat',
|
|
'quorum': 'BlockdevOptionsQuorum',
|
|
'raw': 'BlockdevOptionsRaw',
|
|
'rbd': 'BlockdevOptionsRbd',
|
|
'replication': { 'type': 'BlockdevOptionsReplication',
|
|
'if': 'defined(CONFIG_REPLICATION)' },
|
|
'sheepdog': 'BlockdevOptionsSheepdog',
|
|
'ssh': 'BlockdevOptionsSsh',
|
|
'throttle': 'BlockdevOptionsThrottle',
|
|
'vdi': 'BlockdevOptionsGenericFormat',
|
|
'vhdx': 'BlockdevOptionsGenericFormat',
|
|
'vmdk': 'BlockdevOptionsGenericCOWFormat',
|
|
'vpc': 'BlockdevOptionsGenericFormat',
|
|
'vvfat': 'BlockdevOptionsVVFAT',
|
|
'vxhs': 'BlockdevOptionsVxHS'
|
|
} }
|
|
|
|
##
|
|
# @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. 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.
|
|
#
|
|
# Since: 2.9
|
|
#
|
|
# Example:
|
|
#
|
|
# 1.
|
|
# -> { "execute": "blockdev-add",
|
|
# "arguments": {
|
|
# "driver": "qcow2",
|
|
# "node-name": "test1",
|
|
# "file": {
|
|
# "driver": "file",
|
|
# "filename": "test.qcow2"
|
|
# }
|
|
# }
|
|
# }
|
|
# <- { "return": {} }
|
|
#
|
|
# 2.
|
|
# -> { "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 }
|
|
|
|
##
|
|
# @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' } }
|
|
|
|
##
|
|
# @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)
|
|
# @nocow Turn off copy-on-write (valid only on btrfs; default: off)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsFile',
|
|
'data': { 'filename': 'str',
|
|
'size': 'size',
|
|
'*preallocation': 'PreallocMode',
|
|
'*nocow': 'bool' } }
|
|
|
|
##
|
|
# @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)
|
|
#
|
|
# 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
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsLUKS',
|
|
'base': 'QCryptoBlockCreateOptionsLUKS',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'size': 'size' } }
|
|
|
|
##
|
|
# @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' ] }
|
|
|
|
|
|
##
|
|
# @BlockdevCreateOptionsQcow2:
|
|
#
|
|
# Driver specific image creation options for qcow2.
|
|
#
|
|
# @file Node to create the image format on
|
|
# @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)
|
|
# @lazy-refcounts True if refcounts may be updated lazily (default: off)
|
|
# @refcount-bits Width of reference counts in bits (default: 16)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsQcow2',
|
|
'data': { 'file': 'BlockdevRef',
|
|
'size': 'size',
|
|
'*version': 'BlockdevQcow2Version',
|
|
'*backing-file': 'str',
|
|
'*backing-fmt': 'BlockdevDriver',
|
|
'*encrypt': 'QCryptoBlockCreateOptions',
|
|
'*cluster-size': 'size',
|
|
'*preallocation': 'PreallocMode',
|
|
'*lazy-refcounts': 'bool',
|
|
'*refcount-bits': 'int' } }
|
|
|
|
##
|
|
# @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
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsRbd',
|
|
'data': { 'location': 'BlockdevOptionsRbd',
|
|
'size': 'size',
|
|
'*cluster-size' : 'size' } }
|
|
|
|
##
|
|
# @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".
|
|
# @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',
|
|
'*zeroed-grain': 'bool' } }
|
|
|
|
|
|
##
|
|
# @SheepdogRedundancyType:
|
|
#
|
|
# @full Create a fully replicated vdi with x copies
|
|
# @erasure-coded Create an erasure coded vdi with x data strips and
|
|
# y parity strips
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'enum': 'SheepdogRedundancyType',
|
|
'data': [ 'full', 'erasure-coded' ] }
|
|
|
|
##
|
|
# @SheepdogRedundancyFull:
|
|
#
|
|
# @copies Number of copies to use (between 1 and 31)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'SheepdogRedundancyFull',
|
|
'data': { 'copies': 'int' }}
|
|
|
|
##
|
|
# @SheepdogRedundancyErasureCoded:
|
|
#
|
|
# @data-strips Number of data strips to use (one of {2,4,8,16})
|
|
# @parity-strips Number of parity strips to use (between 1 and 15)
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'SheepdogRedundancyErasureCoded',
|
|
'data': { 'data-strips': 'int',
|
|
'parity-strips': 'int' }}
|
|
|
|
##
|
|
# @SheepdogRedundancy:
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'union': 'SheepdogRedundancy',
|
|
'base': { 'type': 'SheepdogRedundancyType' },
|
|
'discriminator': 'type',
|
|
'data': { 'full': 'SheepdogRedundancyFull',
|
|
'erasure-coded': 'SheepdogRedundancyErasureCoded' } }
|
|
|
|
##
|
|
# @BlockdevCreateOptionsSheepdog:
|
|
#
|
|
# Driver specific image creation options for Sheepdog.
|
|
#
|
|
# @location Where to store the new image file
|
|
# @size Size of the virtual disk in bytes
|
|
# @backing-file File name of a base image
|
|
# @preallocation Preallocation mode (allowed values: off, full)
|
|
# @redundancy Redundancy of the image
|
|
# @object-size Object size of the image
|
|
#
|
|
# Since: 2.12
|
|
##
|
|
{ 'struct': 'BlockdevCreateOptionsSheepdog',
|
|
'data': { 'location': 'BlockdevOptionsSheepdog',
|
|
'size': 'size',
|
|
'*backing-file': 'str',
|
|
'*preallocation': 'PreallocMode',
|
|
'*redundancy': 'SheepdogRedundancy',
|
|
'*object-size': 'size' } }
|
|
|
|
##
|
|
# @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 (allowed values: off,
|
|
# metadata; default: off)
|
|
#
|
|
# 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',
|
|
'sheepdog': 'BlockdevCreateOptionsSheepdog',
|
|
'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' } }
|
|
|
|
##
|
|
# @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 (deprecated, use @id instead)
|
|
#
|
|
# @id: The name or QOM path of the guest device (since: 2.8)
|
|
#
|
|
# @force: 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
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-open-tray",
|
|
# "arguments": { "id": "ide0-1-0" } }
|
|
#
|
|
# <- { "timestamp": { "seconds": 1418751016,
|
|
# "microseconds": 716996 },
|
|
# "event": "DEVICE_TRAY_MOVED",
|
|
# "data": { "device": "ide1-cd0",
|
|
# "id": "ide0-1-0",
|
|
# "tray-open": true } }
|
|
#
|
|
# <- { "return": {} }
|
|
#
|
|
##
|
|
{ 'command': 'blockdev-open-tray',
|
|
'data': { '*device': 'str',
|
|
'*id': '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 (deprecated, use @id instead)
|
|
#
|
|
# @id: The name or QOM path of the guest device (since: 2.8)
|
|
#
|
|
# Since: 2.5
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-close-tray",
|
|
# "arguments": { "id": "ide0-1-0" } }
|
|
#
|
|
# <- { "timestamp": { "seconds": 1418751345,
|
|
# "microseconds": 272147 },
|
|
# "event": "DEVICE_TRAY_MOVED",
|
|
# "data": { "device": "ide1-cd0",
|
|
# "id": "ide0-1-0",
|
|
# "tray-open": false } }
|
|
#
|
|
# <- { "return": {} }
|
|
#
|
|
##
|
|
{ 'command': 'blockdev-close-tray',
|
|
'data': { '*device': 'str',
|
|
'*id': 'str' } }
|
|
|
|
##
|
|
# @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.
|
|
#
|
|
# @id: The name or QOM path of the guest device
|
|
#
|
|
# Since: 2.12
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-remove-medium",
|
|
# "arguments": { "id": "ide0-1-0" } }
|
|
#
|
|
# <- { "error": { "class": "GenericError",
|
|
# "desc": "Tray of device 'ide0-1-0' is not open" } }
|
|
#
|
|
# -> { "execute": "blockdev-open-tray",
|
|
# "arguments": { "id": "ide0-1-0" } }
|
|
#
|
|
# <- { "timestamp": { "seconds": 1418751627,
|
|
# "microseconds": 549958 },
|
|
# "event": "DEVICE_TRAY_MOVED",
|
|
# "data": { "device": "ide1-cd0",
|
|
# "id": "ide0-1-0",
|
|
# "tray-open": true } }
|
|
#
|
|
# <- { "return": {} }
|
|
#
|
|
# -> { "execute": "blockdev-remove-medium",
|
|
# "arguments": { "id": "ide0-1-0" } }
|
|
#
|
|
# <- { "return": {} }
|
|
#
|
|
##
|
|
{ 'command': 'blockdev-remove-medium',
|
|
'data': { 'id': 'str' } }
|
|
|
|
##
|
|
# @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.
|
|
#
|
|
# @id: The name or QOM path of the guest device
|
|
#
|
|
# @node-name: name of a node in the block driver state graph
|
|
#
|
|
# Since: 2.12
|
|
#
|
|
# Example:
|
|
#
|
|
# -> { "execute": "blockdev-add",
|
|
# "arguments": {
|
|
# "node-name": "node0",
|
|
# "driver": "raw",
|
|
# "file": { "driver": "file",
|
|
# "filename": "fedora.iso" } } }
|
|
# <- { "return": {} }
|
|
#
|
|
# -> { "execute": "blockdev-insert-medium",
|
|
# "arguments": { "id": "ide0-1-0",
|
|
# "node-name": "node0" } }
|
|
#
|
|
# <- { "return": {} }
|
|
#
|
|
##
|
|
{ 'command': 'blockdev-insert-medium',
|
|
'data': { 'id': '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, blockdev-remove-medium, blockdev-insert-medium
|
|
# and blockdev-close-tray).
|
|
#
|
|
# @device: Block device name (deprecated, use @id instead)
|
|
#
|
|
# @id: The name or QOM path of the guest device
|
|
# (since: 2.8)
|
|
#
|
|
# @filename: filename of the new image to be loaded
|
|
#
|
|
# @format: format to open the new image with (defaults to
|
|
# the probed format)
|
|
#
|
|
# @read-only-mode: change the read-only mode of the device; defaults
|
|
# to 'retain'
|
|
#
|
|
# Since: 2.5
|
|
#
|
|
# Examples:
|
|
#
|
|
# 1. Change a removable medium
|
|
#
|
|
# -> { "execute": "blockdev-change-medium",
|
|
# "arguments": { "id": "ide0-1-0",
|
|
# "filename": "/srv/images/Fedora-12-x86_64-DVD.iso",
|
|
# "format": "raw" } }
|
|
# <- { "return": {} }
|
|
#
|
|
# 2. Load a read-only medium into a writable drive
|
|
#
|
|
# -> { "execute": "blockdev-change-medium",
|
|
# "arguments": { "id": "floppyA",
|
|
# "filename": "/srv/images/ro.img",
|
|
# "format": "raw",
|
|
# "read-only-mode": "retain" } }
|
|
#
|
|
# <- { "error":
|
|
# { "class": "GenericError",
|
|
# "desc": "Could not open '/srv/images/ro.img': Permission denied" } }
|
|
#
|
|
# -> { "execute": "blockdev-change-medium",
|
|
# "arguments": { "id": "floppyA",
|
|
# "filename": "/srv/images/ro.img",
|
|
# "format": "raw",
|
|
# "read-only-mode": "read-only" } }
|
|
#
|
|
# <- { "return": {} }
|
|
#
|
|
##
|
|
{ 'command': 'blockdev-change-medium',
|
|
'data': { '*device': 'str',
|
|
'*id': 'str',
|
|
'filename': 'str',
|
|
'*format': 'str',
|
|
'*read-only-mode': 'BlockdevChangeReadOnlyMode' } }
|
|
|
|
|
|
##
|
|
# @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": "ide0-hd0", "node-name": "node0",
|
|
# "msg": "Prevented active L1 table overwrite", "offset": 196608,
|
|
# "size": 65536 },
|
|
# "timestamp": { "seconds": 1378126126, "microseconds": 966463 } }
|
|
#
|
|
# 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: 0.13.0
|
|
#
|
|
# Example:
|
|
#
|
|
# <- { "event": "BLOCK_IO_ERROR",
|
|
# "data": { "device": "ide0-hd1",
|
|
# "node-name": "#block212",
|
|
# "operation": "write",
|
|
# "action": "stop" },
|
|
# "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_WAITING",
|
|
# "data": { "device": "drive0", "type": "mirror" },
|
|
# "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 zeros.
|
|
# @full: preallocate all data by writing zeros to device to ensure disk
|
|
# space is really available. @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' } }
|
|
|
|
##
|
|
# @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.
|
|
#
|
|
# Note: 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
|
|
#
|
|
# Example:
|
|
#
|
|
# 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' } }
|
|
|
|
##
|
|
# @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
|
|
#
|
|
# Note: this command is experimental and intended for test cases that need
|
|
# control over IOThreads only.
|
|
#
|
|
# Since: 2.12
|
|
#
|
|
# Example:
|
|
#
|
|
# 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' } }
|