@@ -2450,6 +2450,9 @@ BlockInfoList *qmp_query_block(Error **errp)
info->value->inserted->backing_file = g_strdup(bs->backing_file);
}
+ info->value->inserted->backing_file_depth =
+ bdrv_get_backing_file_depth(bs);
+
if (bs->io_limits_enabled) {
info->value->inserted->bps =
bs->io_limits.bps[BLOCK_IO_LIMIT_TOTAL];
@@ -398,6 +398,8 @@
#
# @backing_file: #optional the name of the backing file (for copy-on-write)
#
+# @backing-file-depth: the count of ancestor's backing files (since: 1.2)
+#
# @encrypted: true if the backing device is encrypted
#
# @bps: total throughput limit in bytes per second is specified
@@ -418,9 +420,10 @@
##
{ 'type': 'BlockDeviceInfo',
'data': { 'file': 'str', 'ro': 'bool', 'drv': 'str',
- '*backing_file': 'str', 'encrypted': 'bool',
- 'bps': 'int', 'bps_rd': 'int', 'bps_wr': 'int',
- 'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int'} }
+ '*backing_file': 'str', 'backing-file-depth': 'int',
+ 'encrypted': 'bool', 'bps': 'int', 'bps_rd': 'int',
+ 'bps_wr': 'int', 'iops': 'int', 'iops_rd': 'int',
+ 'iops_wr': 'int'} }
##
# @BlockDeviceIoStatus: