718 lines
20 KiB
Plaintext
718 lines
20 KiB
Plaintext
QEMU Machine Protocol Events
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============================
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ACPI_DEVICE_OST
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---------------
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Emitted when guest executes ACPI _OST method.
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- data: ACPIOSTInfo type as described in qapi-schema.json
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{ "event": "ACPI_DEVICE_OST",
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"data": { "device": "d1", "slot": "0", "slot-type": "DIMM", "source": 1, "status": 0 } }
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BALLOON_CHANGE
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--------------
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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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Note: this event is rate-limited.
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BLOCK_IMAGE_CORRUPTED
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---------------------
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Emitted when a disk image is being marked corrupt. The image can be
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identified by its device or node name. The 'device' field is always
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present for compatibility reasons, but it can be empty ("") if the
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image does not have a device name associated.
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Data:
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- "device": Device name (json-string)
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- "node-name": Node name (json-string, optional)
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- "msg": Informative message (e.g., reason for the corruption)
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(json-string)
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- "offset": If the corruption resulted from an image access, this
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is the host's access offset into the image
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(json-int, optional)
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- "size": If the corruption resulted from an image access, this
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is the access size (json-int, optional)
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Example:
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{ "event": "BLOCK_IMAGE_CORRUPTED",
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"data": { "device": "ide0-hd0", "node-name": "node0",
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"msg": "Prevented active L1 table overwrite", "offset": 196608,
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"size": 65536 },
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"timestamp": { "seconds": 1378126126, "microseconds": 966463 } }
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BLOCK_IO_ERROR
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--------------
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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": the VM is going to stop because of the error
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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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-------------------
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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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-------------------
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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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---------------
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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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BLOCK_JOB_READY
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---------------
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Emitted when a block job is ready to complete.
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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_READY",
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"data": { "device": "drive0", "type": "mirror", "speed": 0,
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"len": 2097152, "offset": 2097152 }
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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.
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DEVICE_DELETED
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--------------
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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:
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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 } }
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DEVICE_TRAY_MOVED
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-----------------
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It's emitted whenever the tray of a removable device is moved by the guest
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or by HMP/QMP commands.
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Data:
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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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DUMP_COMPLETED
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--------------
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Emitted when the guest has finished one memory dump.
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Data:
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- "result": DumpQueryResult type described in qapi-schema.json
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- "error": Error message when dump failed. This is only a
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human-readable string provided when dump failed. It should not be
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parsed in any way (json-string, optional)
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Example:
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{ "event": "DUMP_COMPLETED",
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"data": {"result": {"total": 1090650112, "status": "completed",
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"completed": 1090650112} } }
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GUEST_PANICKED
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--------------
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Emitted when guest OS panic is detected.
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Data:
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- "action": Action that has been taken (json-string, currently always "pause").
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Example:
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{ "event": "GUEST_PANICKED",
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"data": { "action": "pause" } }
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MEM_UNPLUG_ERROR
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--------------------
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Emitted when memory hot unplug error occurs.
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Data:
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- "device": device name (json-string)
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- "msg": Informative message (e.g., reason for the error) (json-string)
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Example:
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{ "event": "MEM_UNPLUG_ERROR"
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"data": { "device": "dimm1",
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"msg": "acpi: device unplug for unsupported device"
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},
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"timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
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NIC_RX_FILTER_CHANGED
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---------------------
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The event is emitted once until the query command is executed,
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the first event will always be emitted.
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Data:
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- "name": net client name (json-string)
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- "path": device path (json-string)
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{ "event": "NIC_RX_FILTER_CHANGED",
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"data": { "name": "vnet0",
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"path": "/machine/peripheral/vnet0/virtio-backend" },
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"timestamp": { "seconds": 1368697518, "microseconds": 326866 } }
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}
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POWERDOWN
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---------
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Emitted when the Virtual Machine is powered down through the power
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control system, such as via ACPI.
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Data: None.
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Example:
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{ "event": "POWERDOWN",
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"timestamp": { "seconds": 1267040730, "microseconds": 682951 } }
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QUORUM_FAILURE
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--------------
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Emitted by the Quorum block driver if it fails to establish a quorum.
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Data:
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- "reference": device name if defined else node name.
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- "sector-num": Number of the first sector of the failed read operation.
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- "sectors-count": Failed read operation sector count.
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Example:
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{ "event": "QUORUM_FAILURE",
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"data": { "reference": "usr1", "sector-num": 345435, "sectors-count": 5 },
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"timestamp": { "seconds": 1344522075, "microseconds": 745528 } }
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Note: this event is rate-limited.
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QUORUM_REPORT_BAD
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-----------------
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Emitted to report a corruption of a Quorum file.
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Data:
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- "type": Quorum operation type
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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 the
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block layer reported an error and clients should not try to
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interpret the error string.
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- "node-name": The graph node name of the block driver state.
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- "sector-num": Number of the first sector of the failed read operation.
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- "sectors-count": Failed read operation sector count.
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Example:
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Read operation:
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{ "event": "QUORUM_REPORT_BAD",
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"data": { "node-name": "node0", "sector-num": 345435, "sectors-count": 5,
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"type": "read" },
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"timestamp": { "seconds": 1344522075, "microseconds": 745528 } }
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Flush operation:
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{ "event": "QUORUM_REPORT_BAD",
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"data": { "node-name": "node0", "sector-num": 0, "sectors-count": 2097120,
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"type": "flush", "error": "Broken pipe" },
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"timestamp": { "seconds": 1456406829, "microseconds": 291763 } }
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Note: this event is rate-limited.
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RESET
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-----
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Emitted when the Virtual Machine is reset.
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Data: None.
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Example:
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{ "event": "RESET",
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"timestamp": { "seconds": 1267041653, "microseconds": 9518 } }
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RESUME
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------
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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
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----------
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Emitted when the guest changes the RTC time.
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Data:
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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:
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{ "event": "RTC_CHANGE",
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"data": { "offset": 78 },
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"timestamp": { "seconds": 1267020223, "microseconds": 435656 } }
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Note: this event is rate-limited.
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SHUTDOWN
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--------
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Emitted when the Virtual Machine has shut down, indicating that qemu
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is about to exit.
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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 } }
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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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SPICE_CONNECTED
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---------------
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Emitted when a SPICE client connects.
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Data:
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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:
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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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}}
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SPICE_DISCONNECTED
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------------------
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Emitted when a SPICE client disconnects.
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Data:
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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:
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{ "timestamp": {"seconds": 1290688046, "microseconds": 388707},
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"event": "SPICE_DISCONNECTED",
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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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}}
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SPICE_INITIALIZED
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-----------------
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Emitted after initial handshake and authentication takes place (if any)
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and the SPICE channel is up and running
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Data:
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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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}}
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SPICE_MIGRATE_COMPLETED
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-----------------------
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Emitted when SPICE migration has completed
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Data: None.
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Example:
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{ "timestamp": {"seconds": 1290688046, "microseconds": 417172},
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"event": "SPICE_MIGRATE_COMPLETED" }
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MIGRATION
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---------
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Emitted when a migration event happens
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Data: None.
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- "status": migration status
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See MigrationStatus in ~/qapi-schema.json for possible values
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Example:
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{"timestamp": {"seconds": 1432121972, "microseconds": 744001},
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"event": "MIGRATION", "data": {"status": "completed"}}
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MIGRATION_PASS
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--------------
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Emitted from the source side of a migration at the start of each pass
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(when it syncs the dirty bitmap)
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Data: None.
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- "pass": An incrementing count (starting at 1 on the first pass)
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Example:
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{"timestamp": {"seconds": 1449669631, "microseconds": 239225},
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"event": "MIGRATION_PASS", "data": {"pass": 2}}
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STOP
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----
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Emitted when the Virtual Machine is stopped.
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Data: None.
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Example:
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{ "event": "STOP",
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"timestamp": { "seconds": 1267041730, "microseconds": 281295 } }
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SUSPEND
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-------
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Emitted when guest enters S3 state.
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Data: None.
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Example:
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{ "event": "SUSPEND",
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"timestamp": { "seconds": 1344456160, "microseconds": 309119 } }
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SUSPEND_DISK
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------------
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Emitted when the guest makes a request to enter S4 state.
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Data: None.
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Example:
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{ "event": "SUSPEND_DISK",
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"timestamp": { "seconds": 1344456160, "microseconds": 309119 } }
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Note: QEMU shuts down when entering S4 state.
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VNC_CONNECTED
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-------------
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Emitted when a VNC client establishes a connection.
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Data:
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- "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")
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Example:
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{ "event": "VNC_CONNECTED",
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"data": {
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"server": { "auth": "sasl", "family": "ipv4",
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"service": "5901", "host": "0.0.0.0" },
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"client": { "family": "ipv4", "service": "58425",
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"host": "127.0.0.1" } },
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"timestamp": { "seconds": 1262976601, "microseconds": 975795 } }
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Note: This event is emitted before any authentication takes place, thus
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the authentication ID is not provided.
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VNC_DISCONNECTED
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----------------
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Emitted when the connection is closed.
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Data:
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- "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")
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- "x509_dname": TLS dname (json-string, optional)
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- "sasl_username": SASL username (json-string, optional)
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Example:
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{ "event": "VNC_DISCONNECTED",
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"data": {
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"server": { "auth": "sasl", "family": "ipv4",
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"service": "5901", "host": "0.0.0.0" },
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"client": { "family": "ipv4", "service": "58425",
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"host": "127.0.0.1", "sasl_username": "luiz" } },
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"timestamp": { "seconds": 1262976601, "microseconds": 975795 } }
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VNC_INITIALIZED
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---------------
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Emitted after authentication takes place (if any) and the VNC session is
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made active.
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Data:
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- "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")
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- "x509_dname": TLS dname (json-string, optional)
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- "sasl_username": SASL username (json-string, optional)
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Example:
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{ "event": "VNC_INITIALIZED",
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"data": {
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"server": { "auth": "sasl", "family": "ipv4",
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"service": "5901", "host": "0.0.0.0"},
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"client": { "family": "ipv4", "service": "46089",
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"host": "127.0.0.1", "sasl_username": "luiz" } },
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"timestamp": { "seconds": 1263475302, "microseconds": 150772 } }
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VSERPORT_CHANGE
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---------------
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Emitted when the guest opens or closes a virtio-serial port.
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Data:
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- "id": device identifier of the virtio-serial port (json-string)
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- "open": true if the guest has opened the virtio-serial port (json-bool)
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Example:
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{ "event": "VSERPORT_CHANGE",
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"data": { "id": "channel0", "open": true },
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"timestamp": { "seconds": 1401385907, "microseconds": 422329 } }
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Note: this event is rate-limited separately for each "id".
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WAKEUP
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------
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Emitted when the guest has woken up from S3 and is running.
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Data: None.
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Example:
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{ "event": "WAKEUP",
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"timestamp": { "seconds": 1344522075, "microseconds": 745528 } }
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WATCHDOG
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--------
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Emitted when the watchdog device's timer is expired.
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Data:
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- "action": Action that has been taken, it's one of the following (json-string):
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"reset", "shutdown", "poweroff", "pause", "debug", or "none"
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Example:
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{ "event": "WATCHDOG",
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"data": { "action": "reset" },
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"timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
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Note: If action is "reset", "shutdown", or "pause" the WATCHDOG event is
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followed respectively by the RESET, SHUTDOWN, or STOP events.
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Note: this event is rate-limited.
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