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-rw-r--r--qapi/machine.json101
1 files changed, 99 insertions, 2 deletions
diff --git a/qapi/machine.json b/qapi/machine.json
index 6c9d2f6..b6d634b 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -1138,6 +1138,68 @@
'data': { 'actual': 'int' } }
##
+# @HvBalloonInfo:
+#
+# hv-balloon guest-provided memory status information.
+#
+# @committed: the amount of memory in use inside the guest plus the
+# amount of the memory unusable inside the guest (ballooned out,
+# offline, etc.)
+#
+# @available: the amount of the memory inside the guest available for
+# new allocations ("free")
+#
+# Since: 8.2
+##
+{ 'struct': 'HvBalloonInfo',
+ 'data': { 'committed': 'size', 'available': 'size' } }
+
+##
+# @query-hv-balloon-status-report:
+#
+# Returns the hv-balloon driver data contained in the last received "STATUS"
+# message from the guest.
+#
+# Returns:
+# - @HvBalloonInfo on success
+# - If no hv-balloon device is present, guest memory status reporting
+# is not enabled or no guest memory status report received yet,
+# GenericError
+#
+# Since: 8.2
+#
+# Example:
+#
+# -> { "execute": "query-hv-balloon-status-report" }
+# <- { "return": {
+# "committed": 816640000,
+# "available": 3333054464
+# }
+# }
+##
+{ 'command': 'query-hv-balloon-status-report', 'returns': 'HvBalloonInfo' }
+
+##
+# @HV_BALLOON_STATUS_REPORT:
+#
+# Emitted when the hv-balloon driver receives a "STATUS" message from
+# the guest.
+#
+# Note: this event is rate-limited.
+#
+# Since: 8.2
+#
+# Example:
+#
+# <- { "event": "HV_BALLOON_STATUS_REPORT",
+# "data": { "committed": 816640000, "available": 3333054464 },
+# "timestamp": { "seconds": 1600295492, "microseconds": 661044 } }
+#
+##
+{ 'event': 'HV_BALLOON_STATUS_REPORT',
+ 'data': 'HvBalloonInfo' }
+
+##
# @MemoryInfo:
#
# Actual memory information in bytes.
@@ -1290,6 +1352,29 @@
}
##
+# @HvBalloonDeviceInfo:
+#
+# hv-balloon provided memory state information
+#
+# @id: device's ID
+#
+# @memaddr: physical address in memory, where device is mapped
+#
+# @max-size: the maximum size of memory that the device can provide
+#
+# @memdev: memory backend linked with device
+#
+# Since: 8.2
+##
+{ 'struct': 'HvBalloonDeviceInfo',
+ 'data': { '*id': 'str',
+ '*memaddr': 'size',
+ 'max-size': 'size',
+ '*memdev': 'str'
+ }
+}
+
+##
# @MemoryDeviceInfoKind:
#
# @nvdimm: since 2.12
@@ -1300,10 +1385,13 @@
#
# @sgx-epc: since 6.2.
#
+# @hv-balloon: since 8.2.
+#
# Since: 2.1
##
{ 'enum': 'MemoryDeviceInfoKind',
- 'data': [ 'dimm', 'nvdimm', 'virtio-pmem', 'virtio-mem', 'sgx-epc' ] }
+ 'data': [ 'dimm', 'nvdimm', 'virtio-pmem', 'virtio-mem', 'sgx-epc',
+ 'hv-balloon' ] }
##
# @PCDIMMDeviceInfoWrapper:
@@ -1338,6 +1426,14 @@
'data': { 'data': 'SgxEPCDeviceInfo' } }
##
+# @HvBalloonDeviceInfoWrapper:
+#
+# Since: 8.2
+##
+{ 'struct': 'HvBalloonDeviceInfoWrapper',
+ 'data': { 'data': 'HvBalloonDeviceInfo' } }
+
+##
# @MemoryDeviceInfo:
#
# Union containing information about a memory device
@@ -1351,7 +1447,8 @@
'nvdimm': 'PCDIMMDeviceInfoWrapper',
'virtio-pmem': 'VirtioPMEMDeviceInfoWrapper',
'virtio-mem': 'VirtioMEMDeviceInfoWrapper',
- 'sgx-epc': 'SgxEPCDeviceInfoWrapper'
+ 'sgx-epc': 'SgxEPCDeviceInfoWrapper',
+ 'hv-balloon': 'HvBalloonDeviceInfoWrapper'
}
}