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-rw-r--r--qapi/block-core.json6
1 files changed, 4 insertions, 2 deletions
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 5c5921bfb7..00475f08d4 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -3676,7 +3676,8 @@
#
# @node-name: node name. Note that errors may be reported for the root node
# that is directly attached to a guest device rather than for the
-# node where the error occurred. (Since: 2.8)
+# node where the error occurred. The node name is not present if
+# the drive is empty. (Since: 2.8)
#
# @operation: I/O operation
#
@@ -3707,7 +3708,8 @@
#
##
{ 'event': 'BLOCK_IO_ERROR',
- 'data': { 'device': 'str', 'node-name': 'str', 'operation': 'IoOperationType',
+ 'data': { 'device': 'str', '*node-name': 'str',
+ 'operation': 'IoOperationType',
'action': 'BlockErrorAction', '*nospace': 'bool',
'reason': 'str' } }