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1
                   QEMU Monitor Protocol Events
2
                   ============================
3

    
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BALLOON_CHANGE
5
--------------
6

    
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Emitted when the guest changes the actual BALLOON level. This
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value is equivalent to the 'actual' field return by the
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'query-balloon' command
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Data:
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- "actual": actual level of the guest memory balloon in bytes (json-number)
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Example:
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{ "event": "BALLOON_CHANGE",
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    "data": { "actual": 944766976 },
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    "timestamp": { "seconds": 1267020223, "microseconds": 435656 } }
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BLOCK_IO_ERROR
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--------------
23

    
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Emitted when a disk I/O error occurs.
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Data:
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- "device": device name (json-string)
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- "operation": I/O operation (json-string, "read" or "write")
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- "action": action that has been taken, it's one of the following (json-string):
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    "ignore": error has been ignored
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    "report": error has been reported to the device
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    "stop": error caused VM to be stopped
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Example:
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{ "event": "BLOCK_IO_ERROR",
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    "data": { "device": "ide0-hd1",
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              "operation": "write",
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              "action": "stop" },
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    "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
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Note: If action is "stop", a STOP event will eventually follow the
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BLOCK_IO_ERROR event.
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BLOCK_JOB_CANCELLED
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-------------------
48

    
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Emitted when a block job has been cancelled.
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Data:
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- "type":     Job type (json-string; "stream" for image streaming
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                                     "commit" for block commit)
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- "device":   Device name (json-string)
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- "len":      Maximum progress value (json-int)
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- "offset":   Current progress value (json-int)
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              On success this is equal to len.
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              On failure this is less than len.
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- "speed":    Rate limit, bytes per second (json-int)
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Example:
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{ "event": "BLOCK_JOB_CANCELLED",
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     "data": { "type": "stream", "device": "virtio-disk0",
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               "len": 10737418240, "offset": 134217728,
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               "speed": 0 },
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     "timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
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BLOCK_JOB_COMPLETED
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-------------------
72

    
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Emitted when a block job has completed.
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Data:
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- "type":     Job type (json-string; "stream" for image streaming
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                                     "commit" for block commit)
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- "device":   Device name (json-string)
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- "len":      Maximum progress value (json-int)
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- "offset":   Current progress value (json-int)
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              On success this is equal to len.
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              On failure this is less than len.
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- "speed":    Rate limit, bytes per second (json-int)
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- "error":    Error message (json-string, optional)
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              Only present on failure.  This field contains a human-readable
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              error message.  There are no semantics other than that streaming
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              has failed and clients should not try to interpret the error
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              string.
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Example:
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{ "event": "BLOCK_JOB_COMPLETED",
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     "data": { "type": "stream", "device": "virtio-disk0",
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               "len": 10737418240, "offset": 10737418240,
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               "speed": 0 },
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     "timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
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BLOCK_JOB_ERROR
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---------------
101

    
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Emitted when a block job encounters an error.
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Data:
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- "device": device name (json-string)
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- "operation": I/O operation (json-string, "read" or "write")
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- "action": action that has been taken, it's one of the following (json-string):
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    "ignore": error has been ignored, the job may fail later
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    "report": error will be reported and the job canceled
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    "stop": error caused job to be paused
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Example:
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{ "event": "BLOCK_JOB_ERROR",
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    "data": { "device": "ide0-hd1",
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              "operation": "write",
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              "action": "stop" },
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    "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
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121
BLOCK_JOB_READY
122
---------------
123

    
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Emitted when a block job is ready to complete.
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Data:
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- "device": device name (json-string)
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Example:
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{ "event": "BLOCK_JOB_READY",
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    "data": { "device": "ide0-hd1" },
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    "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
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Note: The "ready to complete" status is always reset by a BLOCK_JOB_ERROR
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event.
138

    
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DEVICE_DELETED
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-----------------
141

    
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Emitted whenever the device removal completion is acknowledged
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by the guest.
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At this point, it's safe to reuse the specified device ID.
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Device removal can be initiated by the guest or by HMP/QMP commands.
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Data:
148

    
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- "device": device name (json-string, optional)
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- "path": device path (json-string)
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{ "event": "DEVICE_DELETED",
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  "data": { "device": "virtio-net-pci-0",
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            "path": "/machine/peripheral/virtio-net-pci-0" },
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  "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
156

    
157
DEVICE_TRAY_MOVED
158
-----------------
159

    
160
It's emitted whenever the tray of a removable device is moved by the guest
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or by HMP/QMP commands.
162

    
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Data:
164

    
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- "device": device name (json-string)
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- "tray-open": true if the tray has been opened or false if it has been closed
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               (json-bool)
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{ "event": "DEVICE_TRAY_MOVED",
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  "data": { "device": "ide1-cd0",
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            "tray-open": true
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  },
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  "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
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RESET
176
-----
177

    
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Emitted when the Virtual Machine is reseted.
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Data: None.
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Example:
183

    
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{ "event": "RESET",
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    "timestamp": { "seconds": 1267041653, "microseconds": 9518 } }
186

    
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RESUME
188
------
189

    
190
Emitted when the Virtual Machine resumes execution.
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Data: None.
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Example:
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{ "event": "RESUME",
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    "timestamp": { "seconds": 1271770767, "microseconds": 582542 } }
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RTC_CHANGE
200
----------
201

    
202
Emitted when the guest changes the RTC time.
203

    
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Data:
205

    
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- "offset": Offset between base RTC clock (as specified by -rtc base), and
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new RTC clock value (json-number)
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Example:
210

    
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{ "event": "RTC_CHANGE",
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    "data": { "offset": 78 },
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    "timestamp": { "seconds": 1267020223, "microseconds": 435656 } }
214

    
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SHUTDOWN
216
--------
217

    
218
Emitted when the Virtual Machine is powered down.
219

    
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Data: None.
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Example:
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{ "event": "SHUTDOWN",
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    "timestamp": { "seconds": 1267040730, "microseconds": 682951 } }
226

    
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Note: If the command-line option "-no-shutdown" has been specified, a STOP
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event will eventually follow the SHUTDOWN event.
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230
SPICE_CONNECTED, SPICE_DISCONNECTED
231
-----------------------------------
232

    
233
Emitted when a SPICE client connects or disconnects.
234

    
235
Data:
236

    
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- "server": Server information (json-object)
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  - "host": IP address (json-string)
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  - "port": port number (json-string)
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  - "family": address family (json-string, "ipv4" or "ipv6")
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- "client": Client information (json-object)
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  - "host": IP address (json-string)
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  - "port": port number (json-string)
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  - "family": address family (json-string, "ipv4" or "ipv6")
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Example:
247

    
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{ "timestamp": {"seconds": 1290688046, "microseconds": 388707},
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  "event": "SPICE_CONNECTED",
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  "data": {
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    "server": { "port": "5920", "family": "ipv4", "host": "127.0.0.1"},
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    "client": {"port": "52873", "family": "ipv4", "host": "127.0.0.1"}
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}}
254

    
255
SPICE_INITIALIZED
256
-----------------
257

    
258
Emitted after initial handshake and authentication takes place (if any)
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and the SPICE channel is up'n'running
260

    
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Data:
262

    
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- "server": Server information (json-object)
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  - "host": IP address (json-string)
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  - "port": port number (json-string)
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  - "family": address family (json-string, "ipv4" or "ipv6")
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  - "auth": authentication method (json-string, optional)
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- "client": Client information (json-object)
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  - "host": IP address (json-string)
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  - "port": port number (json-string)
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  - "family": address family (json-string, "ipv4" or "ipv6")
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  - "connection-id": spice connection id.  All channels with the same id
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                     belong to the same spice session (json-int)
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  - "channel-type": channel type.  "1" is the main control channel, filter for
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                    this one if you want track spice sessions only (json-int)
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  - "channel-id": channel id.  Usually "0", might be different needed when
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                  multiple channels of the same type exist, such as multiple
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                  display channels in a multihead setup (json-int)
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  - "tls": whevener the channel is encrypted (json-bool)
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Example:
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{ "timestamp": {"seconds": 1290688046, "microseconds": 417172},
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  "event": "SPICE_INITIALIZED",
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  "data": {"server": {"auth": "spice", "port": "5921",
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                      "family": "ipv4", "host": "127.0.0.1"},
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           "client": {"port": "49004", "family": "ipv4", "channel-type": 3,
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                      "connection-id": 1804289383, "host": "127.0.0.1",
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                      "channel-id": 0, "tls": true}
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}}
291

    
292
STOP
293
----
294

    
295
Emitted when the Virtual Machine is stopped.
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Data: None.
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299
Example:
300

    
301
{ "event": "STOP",
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    "timestamp": { "seconds": 1267041730, "microseconds": 281295 } }
303

    
304
SUSPEND
305
-------
306

    
307
Emitted when guest enters S3 state.
308

    
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Data: None.
310

    
311
Example:
312

    
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{ "event": "SUSPEND",
314
     "timestamp": { "seconds": 1344456160, "microseconds": 309119 } }
315

    
316
SUSPEND_DISK
317
------------
318

    
319
Emitted when the guest makes a request to enter S4 state.
320

    
321
Data: None.
322

    
323
Example:
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{ "event": "SUSPEND_DISK",
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     "timestamp": { "seconds": 1344456160, "microseconds": 309119 } }
327

    
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Note: QEMU shuts down when entering S4 state.
329

    
330
VNC_CONNECTED
331
-------------
332

    
333
Emitted when a VNC client establishes a connection.
334

    
335
Data:
336

    
337
- "server": Server information (json-object)
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  - "host": IP address (json-string)
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  - "service": port number (json-string)
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  - "family": address family (json-string, "ipv4" or "ipv6")
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  - "auth": authentication method (json-string, optional)
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- "client": Client information (json-object)
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  - "host": IP address (json-string)
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  - "service": port number (json-string)
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  - "family": address family (json-string, "ipv4" or "ipv6")
346

    
347
Example:
348

    
349
{ "event": "VNC_CONNECTED",
350
    "data": {
351
        "server": { "auth": "sasl", "family": "ipv4",
352
                    "service": "5901", "host": "0.0.0.0" },
353
        "client": { "family": "ipv4", "service": "58425",
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                    "host": "127.0.0.1" } },
355
    "timestamp": { "seconds": 1262976601, "microseconds": 975795 } }
356

    
357

    
358
Note: This event is emitted before any authentication takes place, thus
359
the authentication ID is not provided.
360

    
361
VNC_DISCONNECTED
362
----------------
363

    
364
Emitted when the connection is closed.
365

    
366
Data:
367

    
368
- "server": Server information (json-object)
369
  - "host": IP address (json-string)
370
  - "service": port number (json-string)
371
  - "family": address family (json-string, "ipv4" or "ipv6")
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  - "auth": authentication method (json-string, optional)
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- "client": Client information (json-object)
374
  - "host": IP address (json-string)
375
  - "service": port number (json-string)
376
  - "family": address family (json-string, "ipv4" or "ipv6")
377
  - "x509_dname": TLS dname (json-string, optional)
378
  - "sasl_username": SASL username (json-string, optional)
379

    
380
Example:
381

    
382
{ "event": "VNC_DISCONNECTED",
383
    "data": {
384
        "server": { "auth": "sasl", "family": "ipv4",
385
                    "service": "5901", "host": "0.0.0.0" },
386
        "client": { "family": "ipv4", "service": "58425",
387
                    "host": "127.0.0.1", "sasl_username": "luiz" } },
388
    "timestamp": { "seconds": 1262976601, "microseconds": 975795 } }
389

    
390
VNC_INITIALIZED
391
---------------
392

    
393
Emitted after authentication takes place (if any) and the VNC session is
394
made active.
395

    
396
Data:
397

    
398
- "server": Server information (json-object)
399
  - "host": IP address (json-string)
400
  - "service": port number (json-string)
401
  - "family": address family (json-string, "ipv4" or "ipv6")
402
  - "auth": authentication method (json-string, optional)
403
- "client": Client information (json-object)
404
  - "host": IP address (json-string)
405
  - "service": port number (json-string)
406
  - "family": address family (json-string, "ipv4" or "ipv6")
407
  - "x509_dname": TLS dname (json-string, optional)
408
  - "sasl_username": SASL username (json-string, optional)
409

    
410
Example:
411

    
412
{ "event": "VNC_INITIALIZED",
413
    "data": {
414
        "server": { "auth": "sasl", "family": "ipv4",
415
                    "service": "5901", "host": "0.0.0.0"},
416
        "client": { "family": "ipv4", "service": "46089",
417
                    "host": "127.0.0.1", "sasl_username": "luiz" } },
418
        "timestamp": { "seconds": 1263475302, "microseconds": 150772 } }
419

    
420
WAKEUP
421
------
422

    
423
Emitted when the guest has woken up from S3 and is running.
424

    
425
Data: None.
426

    
427
Example:
428

    
429
{ "event": "WATCHDOG",
430
     "timestamp": { "seconds": 1344522075, "microseconds": 745528 } }
431

    
432
WATCHDOG
433
--------
434

    
435
Emitted when the watchdog device's timer is expired.
436

    
437
Data:
438

    
439
- "action": Action that has been taken, it's one of the following (json-string):
440
            "reset", "shutdown", "poweroff", "pause", "debug", or "none"
441

    
442
Example:
443

    
444
{ "event": "WATCHDOG",
445
     "data": { "action": "reset" },
446
     "timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
447

    
448
Note: If action is "reset", "shutdown", or "pause" the WATCHDOG event is
449
followed respectively by the RESET, SHUTDOWN, or STOP events.
450

    
451
GUEST_PANICKED
452
--------------
453

    
454
Emitted when guest OS panic is detected.
455

    
456
Data:
457

    
458
- "action": Action that has been taken (json-string, currently always "pause").
459

    
460
Example:
461

    
462
{ "event": "GUEST_PANICKED",
463
     "data": { "action": "pause" } }