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 } } Note: this event is rate-limited. DEVICE_DELETED -------------- Emitted whenever the device removal completion is acknowledged by the guest. At this point, it's safe to reuse the specified device ID. Device removal can be initiated by the guest or by HMP/QMP commands. Data: - "device": device name (json-string, optional) - "path": device path (json-string) { "event": "DEVICE_DELETED", "data": { "device": "virtio-net-pci-0", "path": "/machine/peripheral/virtio-net-pci-0" }, "timestamp": { "seconds": 1265044230, "microseconds": 450486 } } DUMP_COMPLETED -------------- Emitted when the guest has finished one memory dump. Data: - "result": DumpQueryResult type described in qapi-schema.json - "error": Error message when dump failed. This is only a human-readable string provided when dump failed. It should not be parsed in any way (json-string, optional) Example: { "event": "DUMP_COMPLETED", "data": {"result": {"total": 1090650112, "status": "completed", "completed": 1090650112} } } 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" } } MEM_UNPLUG_ERROR -------------------- Emitted when memory hot unplug error occurs. Data: - "device": device name (json-string) - "msg": Informative message (e.g., reason for the error) (json-string) Example: { "event": "MEM_UNPLUG_ERROR" "data": { "device": "dimm1", "msg": "acpi: device unplug for unsupported device" }, "timestamp": { "seconds": 1265044230, "microseconds": 450486 } } NIC_RX_FILTER_CHANGED --------------------- The event is emitted once until the query command is executed, the first event will always be emitted. Data: - "name": net client name (json-string) - "path": device path (json-string) { "event": "NIC_RX_FILTER_CHANGED", "data": { "name": "vnet0", "path": "/machine/peripheral/vnet0/virtio-backend" }, "timestamp": { "seconds": 1368697518, "microseconds": 326866 } } } 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. - "sectors-count": Failed read operation sector count. Example: { "event": "QUORUM_FAILURE", "data": { "reference": "usr1", "sector-num": 345435, "sectors-count": 5 }, "timestamp": { "seconds": 1344522075, "microseconds": 745528 } } Note: this event is rate-limited. QUORUM_REPORT_BAD ----------------- Emitted to report a corruption of a Quorum file. Data: - "type": Quorum operation type - "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. - "sectors-count": Failed read operation sector count. Example: Read operation: { "event": "QUORUM_REPORT_BAD", "data": { "node-name": "node0", "sector-num": 345435, "sectors-count": 5, "type": "read" }, "timestamp": { "seconds": 1344522075, "microseconds": 745528 } } Flush operation: { "event": "QUORUM_REPORT_BAD", "data": { "node-name": "node0", "sector-num": 0, "sectors-count": 2097120, "type": "flush", "error": "Broken pipe" }, "timestamp": { "seconds": 1456406829, "microseconds": 291763 } } Note: this event is rate-limited. SPICE_CONNECTED --------------- Emitted when a SPICE client connects. Data: - "server": Server information (json-object) - "host": IP address (json-string) - "port": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") - "client": Client information (json-object) - "host": IP address (json-string) - "port": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") Example: { "timestamp": {"seconds": 1290688046, "microseconds": 388707}, "event": "SPICE_CONNECTED", "data": { "server": { "port": "5920", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "52873", "family": "ipv4", "host": "127.0.0.1"} }} SPICE_DISCONNECTED ------------------ Emitted when a SPICE client disconnects. Data: - "server": Server information (json-object) - "host": IP address (json-string) - "port": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") - "client": Client information (json-object) - "host": IP address (json-string) - "port": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") Example: { "timestamp": {"seconds": 1290688046, "microseconds": 388707}, "event": "SPICE_DISCONNECTED", "data": { "server": { "port": "5920", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "52873", "family": "ipv4", "host": "127.0.0.1"} }} SPICE_INITIALIZED ----------------- Emitted after initial handshake and authentication takes place (if any) and the SPICE channel is up and running Data: - "server": Server information (json-object) - "host": IP address (json-string) - "port": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") - "auth": authentication method (json-string, optional) - "client": Client information (json-object) - "host": IP address (json-string) - "port": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") - "connection-id": spice connection id. All channels with the same id belong to the same spice session (json-int) - "channel-type": channel type. "1" is the main control channel, filter for this one if you want track spice sessions only (json-int) - "channel-id": channel id. Usually "0", might be different needed when multiple channels of the same type exist, such as multiple display channels in a multihead setup (json-int) - "tls": whevener the channel is encrypted (json-bool) Example: { "timestamp": {"seconds": 1290688046, "microseconds": 417172}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "spice", "port": "5921", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "49004", "family": "ipv4", "channel-type": 3, "connection-id": 1804289383, "host": "127.0.0.1", "channel-id": 0, "tls": true} }} SPICE_MIGRATE_COMPLETED ----------------------- Emitted when SPICE migration has completed Data: None. Example: { "timestamp": {"seconds": 1290688046, "microseconds": 417172}, "event": "SPICE_MIGRATE_COMPLETED" } MIGRATION --------- Emitted when a migration event happens Data: None. - "status": migration status See MigrationStatus in ~/qapi-schema.json for possible values Example: {"timestamp": {"seconds": 1432121972, "microseconds": 744001}, "event": "MIGRATION", "data": {"status": "completed"}} MIGRATION_PASS -------------- Emitted from the source side of a migration at the start of each pass (when it syncs the dirty bitmap) Data: None. - "pass": An incrementing count (starting at 1 on the first pass) Example: {"timestamp": {"seconds": 1449669631, "microseconds": 239225}, "event": "MIGRATION_PASS", "data": {"pass": 2}} VNC_CONNECTED ------------- Emitted when a VNC client establishes a connection. Data: - "server": Server information (json-object) - "host": IP address (json-string) - "service": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") - "auth": authentication method (json-string, optional) - "client": Client information (json-object) - "host": IP address (json-string) - "service": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") Example: { "event": "VNC_CONNECTED", "data": { "server": { "auth": "sasl", "family": "ipv4", "service": "5901", "host": "0.0.0.0" }, "client": { "family": "ipv4", "service": "58425", "host": "127.0.0.1" } }, "timestamp": { "seconds": 1262976601, "microseconds": 975795 } } Note: This event is emitted before any authentication takes place, thus the authentication ID is not provided. VNC_DISCONNECTED ---------------- Emitted when the connection is closed. Data: - "server": Server information (json-object) - "host": IP address (json-string) - "service": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") - "auth": authentication method (json-string, optional) - "client": Client information (json-object) - "host": IP address (json-string) - "service": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") - "x509_dname": TLS dname (json-string, optional) - "sasl_username": SASL username (json-string, optional) Example: { "event": "VNC_DISCONNECTED", "data": { "server": { "auth": "sasl", "family": "ipv4", "service": "5901", "host": "0.0.0.0" }, "client": { "family": "ipv4", "service": "58425", "host": "127.0.0.1", "sasl_username": "luiz" } }, "timestamp": { "seconds": 1262976601, "microseconds": 975795 } } VNC_INITIALIZED --------------- Emitted after authentication takes place (if any) and the VNC session is made active. Data: - "server": Server information (json-object) - "host": IP address (json-string) - "service": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") - "auth": authentication method (json-string, optional) - "client": Client information (json-object) - "host": IP address (json-string) - "service": port number (json-string) - "family": address family (json-string, "ipv4" or "ipv6") - "x509_dname": TLS dname (json-string, optional) - "sasl_username": SASL username (json-string, optional) Example: { "event": "VNC_INITIALIZED", "data": { "server": { "auth": "sasl", "family": "ipv4", "service": "5901", "host": "0.0.0.0"}, "client": { "family": "ipv4", "service": "46089", "host": "127.0.0.1", "sasl_username": "luiz" } }, "timestamp": { "seconds": 1263475302, "microseconds": 150772 } } VSERPORT_CHANGE --------------- Emitted when the guest opens or closes a virtio-serial port. Data: - "id": device identifier of the virtio-serial port (json-string) - "open": true if the guest has opened the virtio-serial port (json-bool) Example: { "event": "VSERPORT_CHANGE", "data": { "id": "channel0", "open": true }, "timestamp": { "seconds": 1401385907, "microseconds": 422329 } } Note: this event is rate-limited separately for each "id".