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qmp: add drive-mirror command

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This adds the monitor commands that start the mirroring job.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-10-18 16:49:24 +02:00 • committed by Kevin Wolf
parent 893f7ebafe
commit d9b902db3f
6 changed files with 250 additions and 0 deletions
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34
qapi-schema.json
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@ -1606,6 +1606,40 @@
'data': { 'device': 'str', '*base': 'str', 'top': 'str',
'*speed': 'int' } }
##
# @drive-mirror
#
# Start mirroring a block device's writes to a new destination.
#
# @device: the name of the device whose writes should be mirrored.
#
# @target: the 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: #optional the format of the new destination, default is to
# probe if @mode is 'existing', else the format of the source
#
# @mode: #optional whether and how QEMU should create a new image, default is
# 'absolute-paths'.
#
# @speed: #optional the maximum speed, in bytes per second
#
# @sync: what parts of the disk image should be copied to the destination
# (all the disk, only the sectors allocated in the topmost image, or
# only new I/O).
#
# Returns: nothing on success
# If @device is not a valid block device, DeviceNotFound
#
# Since 1.3
##
{ 'command': 'drive-mirror',
'data': { 'device': 'str', 'target': 'str', '*format': 'str',
'sync': 'MirrorSyncMode', '*mode': 'NewImageMode',
'*speed': 'int' } }
##
# @migrate_cancel
#
# Cancel the current executing migration process.