QMP: Add qmp command for blockdev-group-snapshot-sync
This adds the QMP command for blockdev-group-snapshot-sync. It takes an array in as the input, for the argument devlist. The array consists of the following elements: + device: device to snapshot. e.g. "ide-hd0", "virtio0" + snapshot-file: path & file for the snapshot image. e.g. "/tmp/file.img" + format: snapshot format. e.g., "qcow2". Optional There is no HMP equivalent for the command. Signed-off-by: Jeff Cody <jcody@redhat.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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@ -686,6 +686,45 @@ EQMP
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.args_type = "device:B",
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.args_type = "device:B",
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.mhandler.cmd_new = qmp_marshal_input_block_job_cancel,
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.mhandler.cmd_new = qmp_marshal_input_block_job_cancel,
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},
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},
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{
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.name = "blockdev-group-snapshot-sync",
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.args_type = "devlist:O",
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.params = "device:B,snapshot-file:s,format:s?",
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.mhandler.cmd_new = qmp_marshal_input_blockdev_group_snapshot_sync,
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},
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SQMP
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blockdev-group-snapshot-sync
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----------------------
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Synchronous snapshot of one or more block devices. A list array input
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is accepted, that contains the device and snapshot file information for
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each device in group. The default format, if not specified, is qcow2.
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If there is any failure creating or opening a new snapshot, all snapshots
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for the group are abandoned, and the original disks pre-snapshot attempt
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are used.
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Arguments:
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devlist array:
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- "device": device name to snapshot (json-string)
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- "snapshot-file": name of new image file (json-string)
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- "format": format of new image (json-string, optional)
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Example:
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-> { "execute": "blockdev-group-snapshot-sync", "arguments":
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{ "devlist": [{ "device": "ide-hd0",
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"snapshot-file": "/some/place/my-image",
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"format": "qcow2" },
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{ "device": "ide-hd1",
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"snapshot-file": "/some/place/my-image2",
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"format": "qcow2" }] } }
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<- { "return": {} }
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EQMP
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{
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{
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.name = "blockdev-snapshot-sync",
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.name = "blockdev-snapshot-sync",
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