diff options
Diffstat (limited to 'qmp-commands.hx')
| -rw-r--r-- | qmp-commands.hx | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/qmp-commands.hx b/qmp-commands.hx index 8c5fdb5ca1..8534948e3f 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -1353,6 +1353,45 @@ Example: EQMP { + .name = "change-backing-file", + .args_type = "device:s,image-node-name:s,backing-file:s", + .mhandler.cmd_new = qmp_marshal_input_change_backing_file, + }, + +SQMP +change-backing-file +------------------- +Since: 2.1 + +Change the backing file in the image file metadata. This does not cause +QEMU to reopen the image file to reparse the backing filename (it may, +however, perform a reopen to change permissions from r/o -> r/w -> r/o, +if needed). The new backing file string is written into the image file +metadata, and the QEMU internal strings are updated. + +Arguments: + +- "image-node-name": The name of the block driver state node of the + image to modify. The "device" is argument is used to + verify "image-node-name" is in the chain described by + "device". + (json-string, optional) + +- "device": The name of the device. + (json-string) + +- "backing-file": The string to write as the backing file. This string is + not validated, so care should be taken when specifying + the string or the image chain may not be able to be + reopened again. + (json-string) + +Returns: Nothing on success + If "device" does not exist or cannot be determined, DeviceNotFound + +EQMP + + { .name = "balloon", .args_type = "value:M", .mhandler.cmd_new = qmp_marshal_input_balloon, |