QEMU Machine Protocol Events
                   ============================

ACPI_DEVICE_OST
---------------

Emitted when guest executes ACPI _OST method.

 - data: ACPIOSTInfo type as described in qapi-schema.json

{ "event": "ACPI_DEVICE_OST",
     "data": { "device": "d1", "slot": "0", "slot-type": "DIMM", "source": 1, "status": 0 } }

BALLOON_CHANGE
--------------

Emitted when the guest changes the actual BALLOON level. This
value is equivalent to the 'actual' field return by the
'query-balloon' command

Data:

- "actual": actual level of the guest memory balloon in bytes (json-number)

Example:

{ "event": "BALLOON_CHANGE",
    "data": { "actual": 944766976 },
    "timestamp": { "seconds": 1267020223, "microseconds": 435656 } }

GUEST_PANICKED
--------------

Emitted when guest OS panic is detected.

Data:

- "action": Action that has been taken (json-string, currently always "pause").

Example:

{ "event": "GUEST_PANICKED",
     "data": { "action": "pause" } }

QUORUM_FAILURE
--------------

Emitted by the Quorum block driver if it fails to establish a quorum.

Data:

- "reference":    device name if defined else node name.
- "sector-num":   Number of the first sector of the failed read operation.
- "sector-count": Failed read operation sector count.

Example:

{ "event": "QUORUM_FAILURE",
     "data": { "reference": "usr1", "sector-num": 345435, "sector-count": 5 },
     "timestamp": { "seconds": 1344522075, "microseconds": 745528 } }

QUORUM_REPORT_BAD
-----------------

Emitted to report a corruption of a Quorum file.

Data:

- "error":        Error message (json-string, optional)
                  Only present on failure.  This field contains a human-readable
                  error message.  There are no semantics other than that the
                  block layer reported an error and clients should not try to
                  interpret the error string.
- "node-name":    The graph node name of the block driver state.
- "sector-num":   Number of the first sector of the failed read operation.
- "sector-count": Failed read operation sector count.

Example:

{ "event": "QUORUM_REPORT_BAD",
     "data": { "node-name": "1.raw", "sector-num": 345435, "sector-count": 5 },
     "timestamp": { "seconds": 1344522075, "microseconds": 745528 } }