@@ -267,6 +267,73 @@ Explicit cross-referencing syntax for QAPI modules is available with
:memb str key-secret: ID of a QCryptoSecret object providing a
passphrase for unlocking the encryption
+.. qapi:command:: blockdev-backup
+ :since: 4.2
+
+ 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.
+
+ :arg str target:
+ the device name or node-name of the backup target node.
+ :arg str? job-id:
+ identifier for the newly-created block job. If omitted, the device
+ name will be used. (Since 2.7)
+ :arg str device:
+ the device name or node-name of a root node which should be copied.
+ :arg MirrorSyncMode 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).
+ :arg int? speed:
+ the maximum speed, in bytes per second. The default is 0, for unlimited.
+ :arg str? bitmap:
+ The name of a dirty bitmap to use. Must be present if sync is
+ ``bitmap`` or ``incremental``. Can be present if sync is ``full`` or
+ ``top``. Must not be present otherwise. (Since 2.4 (drive-backup),
+ 3.1 (blockdev-backup))
+ :arg BitmapSyncMode? bitmap-mode:
+ Specifies the type of data the bitmap should contain after the
+ operation concludes. Must be present if a bitmap was provided,
+ Must NOT be present otherwise. (Since 4.2)
+ :arg bool? compress:
+ true to compress data, if the target format supports it. (default:
+ false) (since 2.8)
+ :arg BlockdevOnError? 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).
+ :arg BlockdevOnError? 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).
+ :arg bool? 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)
+ :arg bool? 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)
+ :arg str? filter-node-name:
+ the node name that should be assigned to the filter driver that
+ the backup job inserts into the graph above node specified by
+ drive. If this option is not given, a node name is
+ autogenerated. (Since: 4.2)
+ :arg BackupPerf? x-perf:
+ Performance options. (Since 6.0)
+ :feat unstable: Member ``x-perf`` is experimental.
+ :error DeviceNotFound: if ``device`` is not a valid block device.
+
+ .. 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.
+
.. qapi:command:: x-debug-query-block-graph
:since: 4.0
:unstable:
Just to have a bit more to look at in the generated doc, here's a fairly complex command with a lot of bells and whistles. Signed-off-by: John Snow <jsnow@redhat.com> --- docs/qapi/index.rst | 67 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+)