973603a813
After setting a balloon target value, applications have to
continually poll 'query-balloon' to determine whether the
guest has reacted to this request. The virtio-balloon backend
knows exactly when the guest has reacted though, and thus it
is possible to emit a JSON event to tell the mgmt application
whenever the guest balloon changes.
This introduces a new 'qemu_balloon_changed()' API which is
to be called by balloon driver backends, whenever they have
a change in balloon value. This takes the 'actual' balloon
value, as would be found in the BalloonInfo struct.
The qemu_balloon_change API emits a JSON monitor event which
looks like:
{"timestamp": {"seconds": 1337162462, "microseconds": 814521},
"event": "BALLOON_CHANGE", "data": {"actual": 944766976}}
* balloon.c, balloon.h: Introduce qemu_balloon_changed() for
emitting balloon change events on the monitor
* hw/virtio-balloon.c: Invoke qemu_balloon_changed() whenever
the guest changes the balloon actual value
* monitor.c, monitor.h: Define QEVENT_BALLOON_CHANGE
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
356 lines
10 KiB
Plaintext
356 lines
10 KiB
Plaintext
QEMU Monitor Protocol Events
|
|
============================
|
|
|
|
BLOCK_IO_ERROR
|
|
--------------
|
|
|
|
Emitted when a disk I/O error occurs.
|
|
|
|
Data:
|
|
|
|
- "device": device name (json-string)
|
|
- "operation": I/O operation (json-string, "read" or "write")
|
|
- "action": action that has been taken, it's one of the following (json-string):
|
|
"ignore": error has been ignored
|
|
"report": error has been reported to the device
|
|
"stop": error caused VM to be stopped
|
|
|
|
Example:
|
|
|
|
{ "event": "BLOCK_IO_ERROR",
|
|
"data": { "device": "ide0-hd1",
|
|
"operation": "write",
|
|
"action": "stop" },
|
|
"timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
|
|
|
|
Note: If action is "stop", a STOP event will eventually follow the
|
|
BLOCK_IO_ERROR event.
|
|
|
|
DEVICE_TRAY_MOVED
|
|
-----------------
|
|
|
|
It's emitted whenever the tray of a removable device is moved by the guest
|
|
or by HMP/QMP commands.
|
|
|
|
Data:
|
|
|
|
- "device": device name (json-string)
|
|
- "tray-open": true if the tray has been opened or false if it has been closed
|
|
(json-bool)
|
|
|
|
{ "event": "DEVICE_TRAY_MOVED",
|
|
"data": { "device": "ide1-cd0",
|
|
"tray-open": true
|
|
},
|
|
"timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
|
|
|
|
RESET
|
|
-----
|
|
|
|
Emitted when the Virtual Machine is reseted.
|
|
|
|
Data: None.
|
|
|
|
Example:
|
|
|
|
{ "event": "RESET",
|
|
"timestamp": { "seconds": 1267041653, "microseconds": 9518 } }
|
|
|
|
RESUME
|
|
------
|
|
|
|
Emitted when the Virtual Machine resumes execution.
|
|
|
|
Data: None.
|
|
|
|
Example:
|
|
|
|
{ "event": "RESUME",
|
|
"timestamp": { "seconds": 1271770767, "microseconds": 582542 } }
|
|
|
|
RTC_CHANGE
|
|
----------
|
|
|
|
Emitted when the guest changes the RTC time.
|
|
|
|
Data:
|
|
|
|
- "offset": delta against the host UTC in seconds (json-number)
|
|
|
|
Example:
|
|
|
|
{ "event": "RTC_CHANGE",
|
|
"data": { "offset": 78 },
|
|
"timestamp": { "seconds": 1267020223, "microseconds": 435656 } }
|
|
|
|
SHUTDOWN
|
|
--------
|
|
|
|
Emitted when the Virtual Machine is powered down.
|
|
|
|
Data: None.
|
|
|
|
Example:
|
|
|
|
{ "event": "SHUTDOWN",
|
|
"timestamp": { "seconds": 1267040730, "microseconds": 682951 } }
|
|
|
|
Note: If the command-line option "-no-shutdown" has been specified, a STOP
|
|
event will eventually follow the SHUTDOWN event.
|
|
|
|
STOP
|
|
----
|
|
|
|
Emitted when the Virtual Machine is stopped.
|
|
|
|
Data: None.
|
|
|
|
Example:
|
|
|
|
{ "event": "STOP",
|
|
"timestamp": { "seconds": 1267041730, "microseconds": 281295 } }
|
|
|
|
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 } }
|
|
|
|
SPICE_CONNECTED, SPICE_DISCONNECTED
|
|
-----------------------------------
|
|
|
|
Emitted when a SPICE client connects or 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_CONNECTED",
|
|
"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'n'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}
|
|
}}
|
|
|
|
|
|
WATCHDOG
|
|
--------
|
|
|
|
Emitted when the watchdog device's timer is expired.
|
|
|
|
Data:
|
|
|
|
- "action": Action that has been taken, it's one of the following (json-string):
|
|
"reset", "shutdown", "poweroff", "pause", "debug", or "none"
|
|
|
|
Example:
|
|
|
|
{ "event": "WATCHDOG",
|
|
"data": { "action": "reset" },
|
|
"timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
|
|
|
|
Note: If action is "reset", "shutdown", or "pause" the WATCHDOG event is
|
|
followed respectively by the RESET, SHUTDOWN, or STOP events.
|
|
|
|
|
|
BLOCK_JOB_COMPLETED
|
|
-------------------
|
|
|
|
Emitted when a block job has completed.
|
|
|
|
Data:
|
|
|
|
- "type": Job type ("stream" for image streaming, json-string)
|
|
- "device": Device name (json-string)
|
|
- "len": Maximum progress value (json-int)
|
|
- "offset": Current progress value (json-int)
|
|
On success this is equal to len.
|
|
On failure this is less than len.
|
|
- "speed": Rate limit, bytes per second (json-int)
|
|
- "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 streaming
|
|
has failed and clients should not try to interpret the error
|
|
string.
|
|
|
|
Example:
|
|
|
|
{ "event": "BLOCK_JOB_COMPLETED",
|
|
"data": { "type": "stream", "device": "virtio-disk0",
|
|
"len": 10737418240, "offset": 10737418240,
|
|
"speed": 0 },
|
|
"timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
|
|
|
|
|
|
BLOCK_JOB_CANCELLED
|
|
-------------------
|
|
|
|
Emitted when a block job has been cancelled.
|
|
|
|
Data:
|
|
|
|
- "type": Job type ("stream" for image streaming, json-string)
|
|
- "device": Device name (json-string)
|
|
- "len": Maximum progress value (json-int)
|
|
- "offset": Current progress value (json-int)
|
|
On success this is equal to len.
|
|
On failure this is less than len.
|
|
- "speed": Rate limit, bytes per second (json-int)
|
|
|
|
Example:
|
|
|
|
{ "event": "BLOCK_JOB_CANCELLED",
|
|
"data": { "type": "stream", "device": "virtio-disk0",
|
|
"len": 10737418240, "offset": 134217728,
|
|
"speed": 0 },
|
|
"timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
|
|
|
|
|
|
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 } }
|