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-rw-r--r--qapi-schema.json8
1 files changed, 7 insertions, 1 deletions
diff --git a/qapi-schema.json b/qapi-schema.json
index ce4f901dc6..fd5ec93c03 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -1636,6 +1636,11 @@
# (all the disk, only the sectors allocated in the topmost image, or
# only new I/O).
#
+# @granularity: #optional granularity of the dirty bitmap, default is 64K
+# if the image format doesn't have clusters, 4K if the clusters
+# are smaller than that, else the cluster size. Must be a
+# power of 2 between 512 and 64M (since 1.4).
+#
# @on-source-error: #optional 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).
@@ -1652,7 +1657,8 @@
{ 'command': 'drive-mirror',
'data': { 'device': 'str', 'target': 'str', '*format': 'str',
'sync': 'MirrorSyncMode', '*mode': 'NewImageMode',
- '*speed': 'int', '*on-source-error': 'BlockdevOnError',
+ '*speed': 'int', '*granularity': 'uint32',
+ '*on-source-error': 'BlockdevOnError',
'*on-target-error': 'BlockdevOnError' } }
##