b1be42803b
Currently macvtap based macvlan device is working in promiscuous mode, we want to implement mac-programming over macvtap through Libvirt for better performance. Design: QEMU notifies Libvirt when rx-filter config is changed in guest, then Libvirt query the rx-filter information by a monitor command, and sync the change to macvtap device. Related rx-filter config of the nic contains main mac, rx-mode items and vlan table. This patch adds a QMP event to notify management of rx-filter change, and adds a monitor command for management to query rx-filter information. Test: If we repeatedly add/remove vlan, and change macaddr of vlan interfaces in guest by a loop script. Result: The events will flood the QMP client(management), management takes too much resource to process the events. Event_throttle API (set rate to 1 ms) can avoid the events to flood QMP client, but it could cause an unexpected delay (~1ms), guests guests normally expect rx-filter updates immediately. So we use a flag for each nic to avoid events flooding, the event is emitted once until the query command is executed. The flag implementation could not introduce unexpected delay. There maybe exist an uncontrollable delay if we let Libvirt do the real change, guests normally expect rx-filter updates immediately. But it's another separate issue, we can investigate it when the work in Libvirt side is done. Michael S. Tsirkin: tweaked to enable events on start Michael S. Tsirkin: fixed not to crash when no id Michael S. Tsirkin: fold in patch: "additional fixes for mac-programming feature" Amos Kong: always notify QMP client if mactable is changed Amos Kong: return NULL list if no net client supports rx-filter query Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Amos Kong <akong@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
481 lines
13 KiB
Plaintext
481 lines
13 KiB
Plaintext
QEMU Monitor Protocol Events
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============================
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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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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": 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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-------------------
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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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- "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.
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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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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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RESET
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-----
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Emitted when the Virtual Machine is reseted.
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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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SHUTDOWN
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--------
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Emitted when the Virtual Machine is powered down.
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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, SPICE_DISCONNECTED
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-----------------------------------
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Emitted when a SPICE client connects or 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_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_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'n'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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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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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": "WATCHDOG",
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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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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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