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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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21
hmp-commands.hx
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@ -1001,6 +1001,27 @@ STEXI
@item snapshot_blkdev
@findex snapshot_blkdev
Snapshot device, using snapshot file as target if provided
ETEXI
{
.name = "drive_mirror",
.args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
.params = "[-n] [-f] device target [format]",
.help = "initiates live storage\n\t\t\t"
"migration for a device. The device's contents are\n\t\t\t"
"copied to the new image file, including data that\n\t\t\t"
"is written after the command is started.\n\t\t\t"
"The -n flag requests QEMU to reuse the image found\n\t\t\t"
"in new-image-file, instead of recreating it from scratch.\n\t\t\t"
"The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
"so that the result does not need a backing file.\n\t\t\t",
.mhandler.cmd = hmp_drive_mirror,
},
STEXI
@item drive_mirror
@findex drive_mirror
Start mirroring a block device's writes to a new destination,
using the specified target.
ETEXI
{