diff options
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/block-core.json | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/qapi/block-core.json b/qapi/block-core.json index aa1252778c..5b4d75fa81 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -720,6 +720,23 @@ # which contains the topmost data to be committed down. If # not specified, this is the active layer. # +# @backing-file: #optional The backing file string to write into the overlay +# image of 'top'. If 'top' is the active layer, +# specifying a backing file string is an error. This +# filename is not validated. +# +# If a pathname string is such that it cannot be +# resolved by QEMU, that means that subsequent QMP or +# HMP commands must use node-names for the image in +# question, as filename lookup methods will fail. +# +# If not specified, QEMU will automatically determine +# the backing file string to use, or error out if +# there is no obvious choice. Care should be taken +# when specifying the string, to specify a valid +# filename or protocol. +# (Since 2.1) +# # If top == base, that is an error. # If top == active, the job will not be completed by itself, # user needs to complete the job with the block-job-complete @@ -732,7 +749,6 @@ # size of the smaller top, you can safely truncate it # yourself once the commit operation successfully completes. # -# # @speed: #optional the maximum speed, in bytes per second # # Returns: Nothing on success @@ -747,7 +763,7 @@ ## { 'command': 'block-commit', 'data': { 'device': 'str', '*base': 'str', '*top': 'str', - '*speed': 'int' } } + '*backing-file': 'str', '*speed': 'int' } } ## # @drive-backup |