Note: inject-nmi fails when the guest doesn't support injecting.
-ringbuf-write
--------------
-
-Write to a ring buffer character device.
-
-Arguments:
-
-- "device": ring buffer character device name (json-string)
-- "data": data to write (json-string)
-- "format": data format (json-string, optional)
- - Possible values: "utf8" (default), "base64"
-
-Example:
-
--> { "execute": "ringbuf-write",
- "arguments": { "device": "foo",
- "data": "abcdefgh",
- "format": "utf8" } }
-<- { "return": {} }
-
-ringbuf-read
--------------
-
-Read from a ring buffer character device.
-
-Arguments:
-
-- "device": ring buffer character device name (json-string)
-- "size": how many bytes to read at most (json-int)
- - Number of data bytes, not number of characters in encoded data
-- "format": data format (json-string, optional)
- - Possible values: "utf8" (default), "base64"
- - Naturally, format "utf8" works only when the ring buffer
- contains valid UTF-8 text. Invalid UTF-8 sequences get
- replaced. Bug: replacement doesn't work. Bug: can screw
- up on encountering NUL characters, after the ring buffer
- lost data, and when reading stops because the size limit
- is reached.
-
-Example:
-
--> { "execute": "ringbuf-read",
- "arguments": { "device": "foo",
- "size": 1000,
- "format": "utf8" } }
-<- {"return": "abcdefgh"}
-
xen-save-devices-state
-------
"time": "+60" } }
<- { "return": {} }
-add_client
-----------
-
-Add a graphics client
-
-Arguments:
-
-- "protocol": protocol name (json-string)
-- "fdname": file descriptor name (json-string)
-- "skipauth": whether to skip authentication (json-bool, optional)
-- "tls": whether to perform TLS (json-bool, optional)
-
-Example:
-
--> { "execute": "add_client", "arguments": { "protocol": "vnc",
- "fdname": "myclient" } }
-<- { "return": {} }
-
qmp_capabilities
----------------
Note: This example has been shortened as the real response is too long.
-query-events
---------------
-
-List QMP available events.
-
-Each event is represented by a json-object, the returned value is a json-array
-of all events.
-
-Each json-object contains:
-
-- "name": event's name (json-string)
-
-Example:
-
--> { "execute": "query-events" }
-<- {
- "return":[
- {
- "name":"SHUTDOWN"
- },
- {
- "name":"RESET"
- }
- ]
- }
-
-Note: This example has been shortened as the real response is too long.
-
query-qmp-schema
----------------
types. See docs/qapi-code-gen.txt for information on their structure
and intended use.
-query-chardev
--------------
-
-Each device is represented by a json-object. The returned value is a json-array
-of all devices.
-
-Each json-object contain the following:
-
-- "label": device's label (json-string)
-- "filename": device's file (json-string)
-- "frontend-open": open/closed state of the frontend device attached to this
- backend (json-bool)
-
-Example:
-
--> { "execute": "query-chardev" }
-<- {
- "return": [
- {
- "label": "charchannel0",
- "filename": "unix:/var/lib/libvirt/qemu/seabios.rhel6.agent,server",
- "frontend-open": false
- },
- {
- "label": "charmonitor",
- "filename": "unix:/var/lib/libvirt/qemu/seabios.rhel6.monitor,server",
- "frontend-open": true
- },
- {
- "label": "charserial0",
- "filename": "pty:/dev/pts/2",
- "frontend-open": true
- }
- ]
- }
-
-query-chardev-backends
--------------
-
-List available character device backends.
-
-Each backend is represented by a json-object, the returned value is a json-array
-of all backends.
-
-Each json-object contains:
-
-- "name": backend name (json-string)
-
-Example:
-
--> { "execute": "query-chardev-backends" }
-<- {
- "return":[
- {
- "name":"udp"
- },
- {
- "name":"tcp"
- },
- {
- "name":"unix"
- },
- {
- "name":"spiceport"
- }
- ]
- }
-
query-block
-----------
"file", "file", "ftp", "ftps", "host_cdrom",
"host_device", "http", "https",
"nbd", "parallels", "qcow", "qcow2", "raw",
- "tftp", "vdi", "vmdk", "vpc", "vvfat"
+ "vdi", "vmdk", "vpc", "vvfat"
- "backing_file": backing file name (json-string, optional)
- "backing_file_depth": number of files in the backing file chain (json-int)
- "encrypted": true if encrypted, false otherwise (json-bool)
Note: This example has been shortened as the real response is too long.
-query-kvm
----------
-
-Show KVM information.
-
-Return a json-object with the following information:
-
-- "enabled": true if KVM support is enabled, false otherwise (json-bool)
-- "present": true if QEMU has KVM support, false otherwise (json-bool)
-
-Example:
-
--> { "execute": "query-kvm" }
-<- { "return": { "enabled": true, "present": true } }
-
-query-status
-------------
-
-Return a json-object with the following information:
-
-- "running": true if the VM is running, or false if it is paused (json-bool)
-- "singlestep": true if the VM is in single step mode,
- false otherwise (json-bool)
-- "status": one of the following values (json-string)
- "debug" - QEMU is running on a debugger
- "inmigrate" - guest is paused waiting for an incoming migration
- "internal-error" - An internal error that prevents further guest
- execution has occurred
- "io-error" - the last IOP has failed and the device is configured
- to pause on I/O errors
- "paused" - guest has been paused via the 'stop' command
- "postmigrate" - guest is paused following a successful 'migrate'
- "prelaunch" - QEMU was started with -S and guest has not started
- "finish-migrate" - guest is paused to finish the migration process
- "restore-vm" - guest is paused to restore VM state
- "running" - guest is actively running
- "save-vm" - guest is paused to save the VM state
- "shutdown" - guest is shut down (and -no-shutdown is in use)
- "watchdog" - the watchdog action is configured to pause and
- has been triggered
-
-Example:
-
--> { "execute": "query-status" }
-<- { "return": { "running": true, "singlestep": false, "status": "running" } }
-
query-mice
----------
}
}
-query-name
-----------
-
-Show VM name.
-
-Return a json-object with the following information:
-
-- "name": VM's name (json-string, optional)
-
-Example:
-
--> { "execute": "query-name" }
-<- { "return": { "name": "qemu-name" } }
-
-query-uuid
-----------
-
-Show VM UUID.
-
-Return a json-object with the following information:
-
-- "UUID": Universally Unique Identifier (json-string)
-
-Example:
-
--> { "execute": "query-uuid" }
-<- { "return": { "UUID": "550e8400-e29b-41d4-a716-446655440000" } }
-
query-command-line-options
--------------------------
]
}
-query-migrate
--------------
-
-Migration status.
-
-Return a json-object. If migration is active there will be another json-object
-with RAM migration status and if block migration is active another one with
-block migration status.
-
-The main json-object contains the following:
-
-- "status": migration status (json-string)
- - Possible values: "setup", "active", "completed", "failed", "cancelled"
-- "total-time": total amount of ms since migration started. If
- migration has ended, it returns the total migration
- time (json-int)
-- "setup-time" amount of setup time in milliseconds _before_ the
- iterations begin but _after_ the QMP command is issued.
- This is designed to provide an accounting of any activities
- (such as RDMA pinning) which may be expensive, but do not
- actually occur during the iterative migration rounds
- themselves. (json-int)
-- "downtime": only present when migration has finished correctly
- total amount in ms for downtime that happened (json-int)
-- "expected-downtime": only present while migration is active
- total amount in ms for downtime that was calculated on
- the last bitmap round (json-int)
-- "ram": only present if "status" is "active", it is a json-object with the
- following RAM information:
- - "transferred": amount transferred in bytes (json-int)
- - "remaining": amount remaining to transfer in bytes (json-int)
- - "total": total amount of memory in bytes (json-int)
- - "duplicate": number of pages filled entirely with the same
- byte (json-int)
- These are sent over the wire much more efficiently.
- - "skipped": number of skipped zero pages (json-int)
- - "normal" : number of whole pages transferred. I.e. they
- were not sent as duplicate or xbzrle pages (json-int)
- - "normal-bytes" : number of bytes transferred in whole
- pages. This is just normal pages times size of one page,
- but this way upper levels don't need to care about page
- size (json-int)
- - "dirty-sync-count": times that dirty ram was synchronized (json-int)
-- "disk": only present if "status" is "active" and it is a block migration,
- it is a json-object with the following disk information:
- - "transferred": amount transferred in bytes (json-int)
- - "remaining": amount remaining to transfer in bytes json-int)
- - "total": total disk size in bytes (json-int)
-- "xbzrle-cache": only present if XBZRLE is active.
- It is a json-object with the following XBZRLE information:
- - "cache-size": XBZRLE cache size in bytes
- - "bytes": number of bytes transferred for XBZRLE compressed pages
- - "pages": number of XBZRLE compressed pages
- - "cache-miss": number of XBRZRLE page cache misses
- - "cache-miss-rate": rate of XBRZRLE page cache misses
- - "overflow": number of times XBZRLE overflows. This means
- that the XBZRLE encoding was bigger than just sent the
- whole page, and then we sent the whole page instead (as as
- normal page).
-
-Examples:
-
-1. Before the first migration
-
--> { "execute": "query-migrate" }
-<- { "return": {} }
-
-2. Migration is done and has succeeded
-
--> { "execute": "query-migrate" }
-<- { "return": {
- "status": "completed",
- "ram":{
- "transferred":123,
- "remaining":123,
- "total":246,
- "total-time":12345,
- "setup-time":12345,
- "downtime":12345,
- "duplicate":123,
- "normal":123,
- "normal-bytes":123456,
- "dirty-sync-count":15
- }
- }
- }
-
-3. Migration is done and has failed
-
--> { "execute": "query-migrate" }
-<- { "return": { "status": "failed" } }
-
-4. Migration is being performed and is not a block migration:
-
--> { "execute": "query-migrate" }
-<- {
- "return":{
- "status":"active",
- "ram":{
- "transferred":123,
- "remaining":123,
- "total":246,
- "total-time":12345,
- "setup-time":12345,
- "expected-downtime":12345,
- "duplicate":123,
- "normal":123,
- "normal-bytes":123456,
- "dirty-sync-count":15
- }
- }
- }
-
-5. Migration is being performed and is a block migration:
-
--> { "execute": "query-migrate" }
-<- {
- "return":{
- "status":"active",
- "ram":{
- "total":1057024,
- "remaining":1053304,
- "transferred":3720,
- "total-time":12345,
- "setup-time":12345,
- "expected-downtime":12345,
- "duplicate":123,
- "normal":123,
- "normal-bytes":123456,
- "dirty-sync-count":15
- },
- "disk":{
- "total":20971520,
- "remaining":20880384,
- "transferred":91136
- }
- }
- }
-
-6. Migration is being performed and XBZRLE is active:
-
--> { "execute": "query-migrate" }
-<- {
- "return":{
- "status":"active",
- "capabilities" : [ { "capability": "xbzrle", "state" : true } ],
- "ram":{
- "total":1057024,
- "remaining":1053304,
- "transferred":3720,
- "total-time":12345,
- "setup-time":12345,
- "expected-downtime":12345,
- "duplicate":10,
- "normal":3333,
- "normal-bytes":3412992,
- "dirty-sync-count":15
- },
- "xbzrle-cache":{
- "cache-size":67108864,
- "bytes":20971520,
- "pages":2444343,
- "cache-miss":2244,
- "cache-miss-rate":0.123,
- "overflow":34434
- }
- }
- }
-
-migrate-set-capabilities
-------------------------
-
-Enable/Disable migration capabilities
-
-- "xbzrle": XBZRLE support
-- "rdma-pin-all": pin all pages when using RDMA during migration
-- "auto-converge": throttle down guest to help convergence of migration
-- "zero-blocks": compress zero blocks during block migration
-- "compress": use multiple compression threads to accelerate live migration
-- "events": generate events for each migration state change
-- "postcopy-ram": postcopy mode for live migration
-- "x-colo": COarse-Grain LOck Stepping (COLO) for Non-stop Service
-
-Arguments:
-
-Example:
-
--> { "execute": "migrate-set-capabilities" , "arguments":
- { "capabilities": [ { "capability": "xbzrle", "state": true } ] } }
-
-query-migrate-capabilities
---------------------------
-
-Query current migration capabilities
-
-- "capabilities": migration capabilities state
- - "xbzrle" : XBZRLE state (json-bool)
- - "rdma-pin-all" : RDMA Pin Page state (json-bool)
- - "auto-converge" : Auto Converge state (json-bool)
- - "zero-blocks" : Zero Blocks state (json-bool)
- - "compress": Multiple compression threads state (json-bool)
- - "events": Migration state change event state (json-bool)
- - "postcopy-ram": postcopy ram state (json-bool)
- - "x-colo": COarse-Grain LOck Stepping for Non-stop Service (json-bool)
-
-Arguments:
-
-Example:
-
--> { "execute": "query-migrate-capabilities" }
-<- {"return": [
- {"state": false, "capability": "xbzrle"},
- {"state": false, "capability": "rdma-pin-all"},
- {"state": false, "capability": "auto-converge"},
- {"state": false, "capability": "zero-blocks"},
- {"state": false, "capability": "compress"},
- {"state": true, "capability": "events"},
- {"state": false, "capability": "postcopy-ram"},
- {"state": false, "capability": "x-colo"}
- ]}
-
-migrate-set-parameters
-----------------------
-
-Set migration parameters
-
-- "compress-level": set compression level during migration (json-int)
-- "compress-threads": set compression thread count for migration (json-int)
-- "decompress-threads": set decompression thread count for migration (json-int)
-- "cpu-throttle-initial": set initial percentage of time guest cpus are
- throttled for auto-converge (json-int)
-- "cpu-throttle-increment": set throttle increasing percentage for
- auto-converge (json-int)
-- "max-bandwidth": set maximum speed for migrations (in bytes/sec) (json-int)
-- "downtime-limit": set maximum tolerated downtime (in milliseconds) for
- migrations (json-int)
-- "x-checkpoint-delay": set the delay time for periodic checkpoint (json-int)
-
-Arguments:
-
-Example:
-
--> { "execute": "migrate-set-parameters" , "arguments":
- { "compress-level": 1 } }
-
query-migrate-parameters
------------------------
"policy": "bind"
},
{
+ "id": "mem1",
"size": 536870912,
"merge": false,
"dump": true,
projects / mirror_qemu.git / blobdiff