mirror of https://github.com/proxmox/mirror_qemu
167 lines
5.0 KiB
JSON
167 lines
5.0 KiB
JSON
# -*- Mode: Python -*-
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#
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# QAPI block definitions (vm related)
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# QAPI block core definitions
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{ 'include': 'block-core.json' }
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##
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# BiosAtaTranslation:
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#
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# Policy that BIOS should use to interpret cylinder/head/sector
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# addresses. Note that Bochs BIOS and SeaBIOS will not actually
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# translate logical CHS to physical; instead, they will use logical
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# block addressing.
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#
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# @auto: If cylinder/heads/sizes are passed, choose between none and LBA
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# depending on the size of the disk. If they are not passed,
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# choose none if QEMU can guess that the disk had 16 or fewer
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# heads, large if QEMU can guess that the disk had 131072 or
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# fewer tracks across all heads (i.e. cylinders*heads<131072),
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# otherwise LBA.
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#
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# @none: The physical disk geometry is equal to the logical geometry.
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#
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# @lba: Assume 63 sectors per track and one of 16, 32, 64, 128 or 255
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# heads (if fewer than 255 are enough to cover the whole disk
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# with 1024 cylinders/head). The number of cylinders/head is
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# then computed based on the number of sectors and heads.
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#
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# @large: The number of cylinders per head is scaled down to 1024
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# by correspondingly scaling up the number of heads.
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#
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# @rechs: Same as @large, but first convert a 16-head geometry to
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# 15-head, by proportionally scaling up the number of
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# cylinders/head.
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#
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# Since: 2.0
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##
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{ 'enum': 'BiosAtaTranslation',
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'data': ['auto', 'none', 'lba', 'large', 'rechs']}
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##
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# @BlockdevSnapshotInternal
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#
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# @device: the name of the device to generate the snapshot from
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#
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# @name: the name of the internal snapshot to be created
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#
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# Notes: In transaction, if @name is empty, or any snapshot matching @name
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# exists, the operation will fail. Only some image formats support it,
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# for example, qcow2, rbd, and sheepdog.
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#
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# Since: 1.7
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##
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{ 'type': 'BlockdevSnapshotInternal',
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'data': { 'device': 'str', 'name': 'str' } }
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##
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# @blockdev-snapshot-internal-sync
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#
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# Synchronously take an internal snapshot of a block device, when the format
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# of the image used supports it.
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#
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# For the arguments, see the documentation of BlockdevSnapshotInternal.
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#
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# Returns: nothing on success
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# If @device is not a valid block device, DeviceNotFound
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# If any snapshot matching @name exists, or @name is empty,
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# GenericError
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# If the format of the image used does not support it,
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# BlockFormatFeatureNotSupported
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#
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# Since 1.7
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##
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{ 'command': 'blockdev-snapshot-internal-sync',
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'data': 'BlockdevSnapshotInternal' }
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##
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# @blockdev-snapshot-delete-internal-sync
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#
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# Synchronously delete an internal snapshot of a block device, when the format
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# of the image used support it. The snapshot is identified by name or id or
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# both. One of the name or id is required. Return SnapshotInfo for the
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# successfully deleted snapshot.
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#
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# @device: the name of the device to delete the snapshot from
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#
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# @id: optional the snapshot's ID to be deleted
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#
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# @name: optional the snapshot's name to be deleted
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#
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# Returns: SnapshotInfo on success
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# If @device is not a valid block device, DeviceNotFound
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# If snapshot not found, GenericError
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# If the format of the image used does not support it,
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# BlockFormatFeatureNotSupported
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# If @id and @name are both not specified, GenericError
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#
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# Since 1.7
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##
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{ 'command': 'blockdev-snapshot-delete-internal-sync',
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'data': { 'device': 'str', '*id': 'str', '*name': 'str'},
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'returns': 'SnapshotInfo' }
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##
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# @eject:
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#
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# Ejects a device from a removable drive.
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#
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# @device: The name of the device
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#
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# @force: @optional If true, eject regardless of whether the drive is locked.
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# If not specified, the default value is false.
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#
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# Returns: Nothing on success
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# If @device is not a valid block device, DeviceNotFound
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#
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# Notes: Ejecting a device will no media results in success
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#
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# Since: 0.14.0
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##
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{ 'command': 'eject', 'data': {'device': 'str', '*force': 'bool'} }
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##
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# @nbd-server-start:
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#
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# Start an NBD server listening on the given host and port. Block
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# devices can then be exported using @nbd-server-add. The NBD
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# server will present them as named exports; for example, another
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# QEMU instance could refer to them as "nbd:HOST:PORT:exportname=NAME".
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#
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# @addr: Address on which to listen.
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#
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# Returns: error if the server is already running.
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#
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# Since: 1.3.0
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##
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{ 'command': 'nbd-server-start',
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'data': { 'addr': 'SocketAddress' } }
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##
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# @nbd-server-add:
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#
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# Export a device to QEMU's embedded NBD server.
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#
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# @device: Block device to be exported
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#
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# @writable: Whether clients should be able to write to the device via the
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# NBD connection (default false). #optional
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#
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# Returns: error if the device is already marked for export.
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#
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# Since: 1.3.0
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##
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{ 'command': 'nbd-server-add', 'data': {'device': 'str', '*writable': 'bool'} }
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##
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# @nbd-server-stop:
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#
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# Stop QEMU's embedded NBD server, and unregister all devices previously
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# added via @nbd-server-add.
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#
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# Since: 1.3.0
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##
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{ 'command': 'nbd-server-stop' }
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