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-rw-r--r--qapi-schema.json44
1 files changed, 44 insertions, 0 deletions
diff --git a/qapi-schema.json b/qapi-schema.json
index 087a46305e..b2814cd510 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -659,6 +659,50 @@
{ 'command': 'query-spice', 'returns': 'SpiceInfo' }
##
+# @BalloonInfo:
+#
+# Information about the guest balloon device.
+#
+# @actual: the number of bytes the balloon currently contains
+#
+# @mem_swapped_in: #optional number of pages swapped in within the guest
+#
+# @mem_swapped_out: #optional number of pages swapped out within the guest
+#
+# @major_page_faults: #optional number of major page faults within the guest
+#
+# @minor_page_faults: #optional number of minor page faults within the guest
+#
+# @free_mem: #optional amount of memory (in bytes) free in the guest
+#
+# @total_mem: #optional amount of memory (in bytes) visible to the guest
+#
+# Since: 0.14.0
+#
+# Notes: all current versions of QEMU do not fill out optional information in
+# this structure.
+##
+{ 'type': 'BalloonInfo',
+ 'data': {'actual': 'int', '*mem_swapped_in': 'int',
+ '*mem_swapped_out': 'int', '*major_page_faults': 'int',
+ '*minor_page_faults': 'int', '*free_mem': 'int',
+ '*total_mem': 'int'} }
+
+##
+# @query-balloon:
+#
+# Return information about the balloon device.
+#
+# Returns: @BalloonInfo on success
+# If the balloon driver is enabled but not functional because the KVM
+# kernel module cannot support it, KvmMissingCap
+# If no balloon device is present, DeviceNotActive
+#
+# Since: 0.14.0
+##
+{ 'command': 'query-balloon', 'returns': 'BalloonInfo' }
+
+##
# @quit:
#
# This command will cause the QEMU process to exit gracefully. While every