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author | Anas Nashif <anas.nashif@intel.com> | 2012-11-06 07:50:24 -0800 |
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committer | Anas Nashif <anas.nashif@intel.com> | 2012-11-06 07:50:24 -0800 |
commit | 060629c6ef0b7e5c267d84c91600113264d33120 (patch) | |
tree | 18fcb144ac71b9c4d08ee5d1dc58e2b16c109a5a /qmp-commands.hx | |
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Imported Upstream version 1.2.0upstream/1.2.0
Diffstat (limited to 'qmp-commands.hx')
-rw-r--r-- | qmp-commands.hx | 2516 |
1 files changed, 2516 insertions, 0 deletions
diff --git a/qmp-commands.hx b/qmp-commands.hx new file mode 100644 index 000000000..3745a2119 --- /dev/null +++ b/qmp-commands.hx @@ -0,0 +1,2516 @@ +HXCOMM QMP dispatch table and documentation +HXCOMM Text between SQMP and EQMP is copied to the QMP documention file and +HXCOMM does not show up in the other formats. + +SQMP + QMP Supported Commands + ---------------------- + +This document describes all commands currently supported by QMP. + +Most of the time their usage is exactly the same as in the user Monitor, this +means that any other document which also describe commands (the manpage, +QEMU's manual, etc) can and should be consulted. + +QMP has two types of commands: regular and query commands. Regular commands +usually change the Virtual Machine's state someway, while query commands just +return information. The sections below are divided accordingly. + +It's important to observe that all communication examples are formatted in +a reader-friendly way, so that they're easier to understand. However, in real +protocol usage, they're emitted as a single line. + +Also, the following notation is used to denote data flow: + +-> data issued by the Client +<- Server data response + +Please, refer to the QMP specification (QMP/qmp-spec.txt) for detailed +information on the Server command and response formats. + +NOTE: This document is temporary and will be replaced soon. + +1. Stability Considerations +=========================== + +The current QMP command set (described in this file) may be useful for a +number of use cases, however it's limited and several commands have bad +defined semantics, specially with regard to command completion. + +These problems are going to be solved incrementally in the next QEMU releases +and we're going to establish a deprecation policy for badly defined commands. + +If you're planning to adopt QMP, please observe the following: + + 1. The deprecation policy will take effect and be documented soon, please + check the documentation of each used command as soon as a new release of + QEMU is available + + 2. DO NOT rely on anything which is not explicit documented + + 3. Errors, in special, are not documented. Applications should NOT check + for specific errors classes or data (it's strongly recommended to only + check for the "error" key) + +2. Regular Commands +=================== + +Server's responses in the examples below are always a success response, please +refer to the QMP specification for more details on error responses. + +EQMP + + { + .name = "quit", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_quit, + }, + +SQMP +quit +---- + +Quit the emulator. + +Arguments: None. + +Example: + +-> { "execute": "quit" } +<- { "return": {} } + +EQMP + + { + .name = "eject", + .args_type = "force:-f,device:B", + .mhandler.cmd_new = qmp_marshal_input_eject, + }, + +SQMP +eject +----- + +Eject a removable medium. + +Arguments: + +- force: force ejection (json-bool, optional) +- device: device name (json-string) + +Example: + +-> { "execute": "eject", "arguments": { "device": "ide1-cd0" } } +<- { "return": {} } + +Note: The "force" argument defaults to false. + +EQMP + + { + .name = "change", + .args_type = "device:B,target:F,arg:s?", + .mhandler.cmd_new = qmp_marshal_input_change, + }, + +SQMP +change +------ + +Change a removable medium or VNC configuration. + +Arguments: + +- "device": device name (json-string) +- "target": filename or item (json-string) +- "arg": additional argument (json-string, optional) + +Examples: + +1. Change a removable medium + +-> { "execute": "change", + "arguments": { "device": "ide1-cd0", + "target": "/srv/images/Fedora-12-x86_64-DVD.iso" } } +<- { "return": {} } + +2. Change VNC password + +-> { "execute": "change", + "arguments": { "device": "vnc", "target": "password", + "arg": "foobar1" } } +<- { "return": {} } + +EQMP + + { + .name = "screendump", + .args_type = "filename:F", + .params = "filename", + .help = "save screen into PPM image 'filename'", + .user_print = monitor_user_noop, + .mhandler.cmd_new = do_screen_dump, + }, + +SQMP +screendump +---------- + +Save screen into PPM image. + +Arguments: + +- "filename": file path (json-string) + +Example: + +-> { "execute": "screendump", "arguments": { "filename": "/tmp/image" } } +<- { "return": {} } + +EQMP + + { + .name = "stop", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_stop, + }, + +SQMP +stop +---- + +Stop the emulator. + +Arguments: None. + +Example: + +-> { "execute": "stop" } +<- { "return": {} } + +EQMP + + { + .name = "cont", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_cont, + }, + +SQMP +cont +---- + +Resume emulation. + +Arguments: None. + +Example: + +-> { "execute": "cont" } +<- { "return": {} } + +EQMP + + { + .name = "system_wakeup", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_system_wakeup, + }, + +SQMP +system_wakeup +------------- + +Wakeup guest from suspend. + +Arguments: None. + +Example: + +-> { "execute": "system_wakeup" } +<- { "return": {} } + +EQMP + + { + .name = "system_reset", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_system_reset, + }, + +SQMP +system_reset +------------ + +Reset the system. + +Arguments: None. + +Example: + +-> { "execute": "system_reset" } +<- { "return": {} } + +EQMP + + { + .name = "system_powerdown", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_system_powerdown, + }, + +SQMP +system_powerdown +---------------- + +Send system power down event. + +Arguments: None. + +Example: + +-> { "execute": "system_powerdown" } +<- { "return": {} } + +EQMP + + { + .name = "device_add", + .args_type = "device:O", + .params = "driver[,prop=value][,...]", + .help = "add device, like -device on the command line", + .user_print = monitor_user_noop, + .mhandler.cmd_new = do_device_add, + }, + +SQMP +device_add +---------- + +Add a device. + +Arguments: + +- "driver": the name of the new device's driver (json-string) +- "bus": the device's parent bus (device tree path, json-string, optional) +- "id": the device's ID, must be unique (json-string) +- device properties + +Example: + +-> { "execute": "device_add", "arguments": { "driver": "e1000", "id": "net1" } } +<- { "return": {} } + +Notes: + +(1) For detailed information about this command, please refer to the + 'docs/qdev-device-use.txt' file. + +(2) It's possible to list device properties by running QEMU with the + "-device DEVICE,\?" command-line argument, where DEVICE is the device's name + +EQMP + + { + .name = "device_del", + .args_type = "id:s", + .mhandler.cmd_new = qmp_marshal_input_device_del, + }, + +SQMP +device_del +---------- + +Remove a device. + +Arguments: + +- "id": the device's ID (json-string) + +Example: + +-> { "execute": "device_del", "arguments": { "id": "net1" } } +<- { "return": {} } + +EQMP + + { + .name = "cpu", + .args_type = "index:i", + .mhandler.cmd_new = qmp_marshal_input_cpu, + }, + +SQMP +cpu +--- + +Set the default CPU. + +Arguments: + +- "index": the CPU's index (json-int) + +Example: + +-> { "execute": "cpu", "arguments": { "index": 0 } } +<- { "return": {} } + +Note: CPUs' indexes are obtained with the 'query-cpus' command. + +EQMP + + { + .name = "memsave", + .args_type = "val:l,size:i,filename:s,cpu:i?", + .mhandler.cmd_new = qmp_marshal_input_memsave, + }, + +SQMP +memsave +------- + +Save to disk virtual memory dump starting at 'val' of size 'size'. + +Arguments: + +- "val": the starting address (json-int) +- "size": the memory size, in bytes (json-int) +- "filename": file path (json-string) +- "cpu": virtual CPU index (json-int, optional) + +Example: + +-> { "execute": "memsave", + "arguments": { "val": 10, + "size": 100, + "filename": "/tmp/virtual-mem-dump" } } +<- { "return": {} } + +EQMP + + { + .name = "pmemsave", + .args_type = "val:l,size:i,filename:s", + .mhandler.cmd_new = qmp_marshal_input_pmemsave, + }, + +SQMP +pmemsave +-------- + +Save to disk physical memory dump starting at 'val' of size 'size'. + +Arguments: + +- "val": the starting address (json-int) +- "size": the memory size, in bytes (json-int) +- "filename": file path (json-string) + +Example: + +-> { "execute": "pmemsave", + "arguments": { "val": 10, + "size": 100, + "filename": "/tmp/physical-mem-dump" } } +<- { "return": {} } + +EQMP + + { + .name = "inject-nmi", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_inject_nmi, + }, + +SQMP +inject-nmi +---------- + +Inject an NMI on guest's CPUs. + +Arguments: None. + +Example: + +-> { "execute": "inject-nmi" } +<- { "return": {} } + +Note: inject-nmi fails when the guest doesn't support injecting. + Currently, only x86 guests do. + +EQMP + + { + .name = "xen-save-devices-state", + .args_type = "filename:F", + .mhandler.cmd_new = qmp_marshal_input_xen_save_devices_state, + }, + +SQMP +xen-save-devices-state +------- + +Save the state of all devices to file. The RAM and the block devices +of the VM are not saved by this command. + +Arguments: + +- "filename": the file to save the state of the devices to as binary +data. See xen-save-devices-state.txt for a description of the binary +format. + +Example: + +-> { "execute": "xen-save-devices-state", + "arguments": { "filename": "/tmp/save" } } +<- { "return": {} } + +EQMP + + { + .name = "migrate", + .args_type = "detach:-d,blk:-b,inc:-i,uri:s", + .mhandler.cmd_new = qmp_marshal_input_migrate, + }, + +SQMP +migrate +------- + +Migrate to URI. + +Arguments: + +- "blk": block migration, full disk copy (json-bool, optional) +- "inc": incremental disk copy (json-bool, optional) +- "uri": Destination URI (json-string) + +Example: + +-> { "execute": "migrate", "arguments": { "uri": "tcp:0:4446" } } +<- { "return": {} } + +Notes: + +(1) The 'query-migrate' command should be used to check migration's progress + and final result (this information is provided by the 'status' member) +(2) All boolean arguments default to false +(3) The user Monitor's "detach" argument is invalid in QMP and should not + be used + +EQMP + + { + .name = "migrate_cancel", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_migrate_cancel, + }, + +SQMP +migrate_cancel +-------------- + +Cancel the current migration. + +Arguments: None. + +Example: + +-> { "execute": "migrate_cancel" } +<- { "return": {} } + +EQMP +{ + .name = "migrate-set-cache-size", + .args_type = "value:o", + .mhandler.cmd_new = qmp_marshal_input_migrate_set_cache_size, + }, + +SQMP +migrate-set-cache-size +--------------------- + +Set cache size to be used by XBZRLE migration, the cache size will be rounded +down to the nearest power of 2 + +Arguments: + +- "value": cache size in bytes (json-int) + +Example: + +-> { "execute": "migrate-set-cache-size", "arguments": { "value": 536870912 } } +<- { "return": {} } + +EQMP + { + .name = "query-migrate-cache-size", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_migrate_cache_size, + }, + +SQMP +query-migrate-cache-size +--------------------- + +Show cache size to be used by XBZRLE migration + +returns a json-object with the following information: +- "size" : json-int + +Example: + +-> { "execute": "query-migrate-cache-size" } +<- { "return": 67108864 } + +EQMP + + { + .name = "migrate_set_speed", + .args_type = "value:o", + .mhandler.cmd_new = qmp_marshal_input_migrate_set_speed, + }, + +SQMP +migrate_set_speed +----------------- + +Set maximum speed for migrations. + +Arguments: + +- "value": maximum speed, in bytes per second (json-int) + +Example: + +-> { "execute": "migrate_set_speed", "arguments": { "value": 1024 } } +<- { "return": {} } + +EQMP + + { + .name = "migrate_set_downtime", + .args_type = "value:T", + .mhandler.cmd_new = qmp_marshal_input_migrate_set_downtime, + }, + +SQMP +migrate_set_downtime +-------------------- + +Set maximum tolerated downtime (in seconds) for migrations. + +Arguments: + +- "value": maximum downtime (json-number) + +Example: + +-> { "execute": "migrate_set_downtime", "arguments": { "value": 0.1 } } +<- { "return": {} } + +EQMP + + { + .name = "client_migrate_info", + .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", + .params = "protocol hostname port tls-port cert-subject", + .help = "send migration info to spice/vnc client", + .user_print = monitor_user_noop, + .mhandler.cmd_async = client_migrate_info, + .flags = MONITOR_CMD_ASYNC, + }, + +SQMP +client_migrate_info +------------------ + +Set the spice/vnc connection info for the migration target. The spice/vnc +server will ask the spice/vnc client to automatically reconnect using the +new parameters (if specified) once the vm migration finished successfully. + +Arguments: + +- "protocol": protocol: "spice" or "vnc" (json-string) +- "hostname": migration target hostname (json-string) +- "port": spice/vnc tcp port for plaintext channels (json-int, optional) +- "tls-port": spice tcp port for tls-secured channels (json-int, optional) +- "cert-subject": server certificate subject (json-string, optional) + +Example: + +-> { "execute": "client_migrate_info", + "arguments": { "protocol": "spice", + "hostname": "virt42.lab.kraxel.org", + "port": 1234 } } +<- { "return": {} } + +EQMP + + { + .name = "dump-guest-memory", + .args_type = "paging:b,protocol:s,begin:i?,end:i?", + .params = "-p protocol [begin] [length]", + .help = "dump guest memory to file", + .user_print = monitor_user_noop, + .mhandler.cmd_new = qmp_marshal_input_dump_guest_memory, + }, + +SQMP +dump + + +Dump guest memory to file. The file can be processed with crash or gdb. + +Arguments: + +- "paging": do paging to get guest's memory mapping (json-bool) +- "protocol": destination file(started with "file:") or destination file + descriptor (started with "fd:") (json-string) +- "begin": the starting physical address. It's optional, and should be specified + with length together (json-int) +- "length": the memory size, in bytes. It's optional, and should be specified + with begin together (json-int) + +Example: + +-> { "execute": "dump-guest-memory", "arguments": { "protocol": "fd:dump" } } +<- { "return": {} } + +Notes: + +(1) All boolean arguments default to false + +EQMP + + { + .name = "netdev_add", + .args_type = "netdev:O", + .mhandler.cmd_new = qmp_netdev_add, + }, + +SQMP +netdev_add +---------- + +Add host network device. + +Arguments: + +- "type": the device type, "tap", "user", ... (json-string) +- "id": the device's ID, must be unique (json-string) +- device options + +Example: + +-> { "execute": "netdev_add", "arguments": { "type": "user", "id": "netdev1" } } +<- { "return": {} } + +Note: The supported device options are the same ones supported by the '-net' + command-line argument, which are listed in the '-help' output or QEMU's + manual + +EQMP + + { + .name = "netdev_del", + .args_type = "id:s", + .mhandler.cmd_new = qmp_marshal_input_netdev_del, + }, + +SQMP +netdev_del +---------- + +Remove host network device. + +Arguments: + +- "id": the device's ID, must be unique (json-string) + +Example: + +-> { "execute": "netdev_del", "arguments": { "id": "netdev1" } } +<- { "return": {} } + + +EQMP + + { + .name = "block_resize", + .args_type = "device:B,size:o", + .mhandler.cmd_new = qmp_marshal_input_block_resize, + }, + +SQMP +block_resize +------------ + +Resize a block image while a guest is running. + +Arguments: + +- "device": the device's ID, must be unique (json-string) +- "size": new size + +Example: + +-> { "execute": "block_resize", "arguments": { "device": "scratch", "size": 1073741824 } } +<- { "return": {} } + +EQMP + + { + .name = "block-stream", + .args_type = "device:B,base:s?,speed:o?", + .mhandler.cmd_new = qmp_marshal_input_block_stream, + }, + + { + .name = "block-job-set-speed", + .args_type = "device:B,speed:o", + .mhandler.cmd_new = qmp_marshal_input_block_job_set_speed, + }, + + { + .name = "block-job-cancel", + .args_type = "device:B", + .mhandler.cmd_new = qmp_marshal_input_block_job_cancel, + }, + { + .name = "transaction", + .args_type = "actions:q", + .mhandler.cmd_new = qmp_marshal_input_transaction, + }, + +SQMP +transaction +----------- + +Atomically operate on one or more block devices. The only supported +operation for now is snapshotting. If there is any failure performing +any of the operations, all snapshots for the group are abandoned, and +the original disks pre-snapshot attempt are used. + +A list of dictionaries is accepted, that contains the actions to be performed. +For snapshots this is the device, the file to use for the new snapshot, +and the format. The default format, if not specified, is qcow2. + +Each new snapshot defaults to being created by QEMU (wiping any +contents if the file already exists), but it is also possible to reuse +an externally-created file. In the latter case, you should ensure that +the new image file has the same contents as the current one; QEMU cannot +perform any meaningful check. Typically this is achieved by using the +current image file as the backing file for the new image. + +Arguments: + +actions array: + - "type": the operation to perform. The only supported + value is "blockdev-snapshot-sync". (json-string) + - "data": a dictionary. The contents depend on the value + of "type". When "type" is "blockdev-snapshot-sync": + - "device": device name to snapshot (json-string) + - "snapshot-file": name of new image file (json-string) + - "format": format of new image (json-string, optional) + - "mode": whether and how QEMU should create the snapshot file + (NewImageMode, optional, default "absolute-paths") + +Example: + +-> { "execute": "transaction", + "arguments": { "actions": [ + { 'type': 'blockdev-snapshot-sync', 'data' : { "device": "ide-hd0", + "snapshot-file": "/some/place/my-image", + "format": "qcow2" } }, + { 'type': 'blockdev-snapshot-sync', 'data' : { "device": "ide-hd1", + "snapshot-file": "/some/place/my-image2", + "mode": "existing", + "format": "qcow2" } } ] } } +<- { "return": {} } + +EQMP + + { + .name = "blockdev-snapshot-sync", + .args_type = "device:B,snapshot-file:s,format:s?,mode:s?", + .mhandler.cmd_new = qmp_marshal_input_blockdev_snapshot_sync, + }, + +SQMP +blockdev-snapshot-sync +---------------------- + +Synchronous snapshot of a block device. snapshot-file specifies the +target of the new image. If the file exists, or if it is a device, the +snapshot will be created in the existing file/device. If does not +exist, a new file will be created. format specifies the format of the +snapshot image, default is qcow2. + +Arguments: + +- "device": device name to snapshot (json-string) +- "snapshot-file": name of new image file (json-string) +- "mode": whether and how QEMU should create the snapshot file + (NewImageMode, optional, default "absolute-paths") +- "format": format of new image (json-string, optional) + +Example: + +-> { "execute": "blockdev-snapshot-sync", "arguments": { "device": "ide-hd0", + "snapshot-file": + "/some/place/my-image", + "format": "qcow2" } } +<- { "return": {} } + +EQMP + + { + .name = "balloon", + .args_type = "value:M", + .mhandler.cmd_new = qmp_marshal_input_balloon, + }, + +SQMP +balloon +------- + +Request VM to change its memory allocation (in bytes). + +Arguments: + +- "value": New memory allocation (json-int) + +Example: + +-> { "execute": "balloon", "arguments": { "value": 536870912 } } +<- { "return": {} } + +EQMP + + { + .name = "set_link", + .args_type = "name:s,up:b", + .mhandler.cmd_new = qmp_marshal_input_set_link, + }, + +SQMP +set_link +-------- + +Change the link status of a network adapter. + +Arguments: + +- "name": network device name (json-string) +- "up": status is up (json-bool) + +Example: + +-> { "execute": "set_link", "arguments": { "name": "e1000.0", "up": false } } +<- { "return": {} } + +EQMP + + { + .name = "getfd", + .args_type = "fdname:s", + .params = "getfd name", + .help = "receive a file descriptor via SCM rights and assign it a name", + .mhandler.cmd_new = qmp_marshal_input_getfd, + }, + +SQMP +getfd +----- + +Receive a file descriptor via SCM rights and assign it a name. + +Arguments: + +- "fdname": file descriptor name (json-string) + +Example: + +-> { "execute": "getfd", "arguments": { "fdname": "fd1" } } +<- { "return": {} } + +Notes: + +(1) If the name specified by the "fdname" argument already exists, + the file descriptor assigned to it will be closed and replaced + by the received file descriptor. +(2) The 'closefd' command can be used to explicitly close the file + descriptor when it is no longer needed. + +EQMP + + { + .name = "closefd", + .args_type = "fdname:s", + .params = "closefd name", + .help = "close a file descriptor previously passed via SCM rights", + .mhandler.cmd_new = qmp_marshal_input_closefd, + }, + +SQMP +closefd +------- + +Close a file descriptor previously passed via SCM rights. + +Arguments: + +- "fdname": file descriptor name (json-string) + +Example: + +-> { "execute": "closefd", "arguments": { "fdname": "fd1" } } +<- { "return": {} } + +EQMP + + { + .name = "add-fd", + .args_type = "fdset-id:i?,opaque:s?", + .params = "add-fd fdset-id opaque", + .help = "Add a file descriptor, that was passed via SCM rights, to an fd set", + .mhandler.cmd_new = qmp_marshal_input_add_fd, + }, + +SQMP +add-fd +------- + +Add a file descriptor, that was passed via SCM rights, to an fd set. + +Arguments: + +- "fdset-id": The ID of the fd set to add the file descriptor to. + (json-int, optional) +- "opaque": A free-form string that can be used to describe the fd. + (json-string, optional) + +Return a json-object with the following information: + +- "fdset-id": The ID of the fd set that the fd was added to. (json-int) +- "fd": The file descriptor that was received via SCM rights and added to the + fd set. (json-int) + +Example: + +-> { "execute": "add-fd", "arguments": { "fdset-id": 1 } } +<- { "return": { "fdset-id": 1, "fd": 3 } } + +Notes: + +(1) The list of fd sets is shared by all monitor connections. +(2) If "fdset-id" is not specified, a new fd set will be created. + +EQMP + + { + .name = "remove-fd", + .args_type = "fdset-id:i,fd:i?", + .params = "remove-fd fdset-id fd", + .help = "Remove a file descriptor from an fd set", + .mhandler.cmd_new = qmp_marshal_input_remove_fd, + }, + +SQMP +remove-fd +--------- + +Remove a file descriptor from an fd set. + +Arguments: + +- "fdset-id": The ID of the fd set that the file descriptor belongs to. + (json-int) +- "fd": The file descriptor that is to be removed. (json-int, optional) + +Example: + +-> { "execute": "remove-fd", "arguments": { "fdset-id": 1, "fd": 3 } } +<- { "return": {} } + +Notes: + +(1) The list of fd sets is shared by all monitor connections. +(2) If "fd" is not specified, all file descriptors in "fdset-id" will be + removed. + +EQMP + + { + .name = "query-fdsets", + .args_type = "", + .help = "Return information describing all fd sets", + .mhandler.cmd_new = qmp_marshal_input_query_fdsets, + }, + +SQMP +query-fdsets +------------- + +Return information describing all fd sets. + +Arguments: None + +Example: + +-> { "execute": "query-fdsets" } +<- { "return": [ + { + "fds": [ + { + "fd": 30, + "opaque": "rdonly:/path/to/file" + }, + { + "fd": 24, + "opaque": "rdwr:/path/to/file" + } + ], + "fdset-id": 1 + }, + { + "fds": [ + { + "fd": 28 + }, + { + "fd": 29 + } + ], + "fdset-id": 0 + } + ] + } + +Note: The list of fd sets is shared by all monitor connections. + +EQMP + + { + .name = "block_passwd", + .args_type = "device:B,password:s", + .mhandler.cmd_new = qmp_marshal_input_block_passwd, + }, + +SQMP +block_passwd +------------ + +Set the password of encrypted block devices. + +Arguments: + +- "device": device name (json-string) +- "password": password (json-string) + +Example: + +-> { "execute": "block_passwd", "arguments": { "device": "ide0-hd0", + "password": "12345" } } +<- { "return": {} } + +EQMP + + { + .name = "block_set_io_throttle", + .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", + .mhandler.cmd_new = qmp_marshal_input_block_set_io_throttle, + }, + +SQMP +block_set_io_throttle +------------ + +Change I/O throttle limits for a block drive. + +Arguments: + +- "device": device name (json-string) +- "bps": total throughput limit in bytes per second(json-int) +- "bps_rd": read throughput limit in bytes per second(json-int) +- "bps_wr": read throughput limit in bytes per second(json-int) +- "iops": total I/O operations per second(json-int) +- "iops_rd": read I/O operations per second(json-int) +- "iops_wr": write I/O operations per second(json-int) + +Example: + +-> { "execute": "block_set_io_throttle", "arguments": { "device": "virtio0", + "bps": "1000000", + "bps_rd": "0", + "bps_wr": "0", + "iops": "0", + "iops_rd": "0", + "iops_wr": "0" } } +<- { "return": {} } + +EQMP + + { + .name = "set_password", + .args_type = "protocol:s,password:s,connected:s?", + .mhandler.cmd_new = qmp_marshal_input_set_password, + }, + +SQMP +set_password +------------ + +Set the password for vnc/spice protocols. + +Arguments: + +- "protocol": protocol name (json-string) +- "password": password (json-string) +- "connected": [ keep | disconnect | fail ] (josn-string, optional) + +Example: + +-> { "execute": "set_password", "arguments": { "protocol": "vnc", + "password": "secret" } } +<- { "return": {} } + +EQMP + + { + .name = "expire_password", + .args_type = "protocol:s,time:s", + .mhandler.cmd_new = qmp_marshal_input_expire_password, + }, + +SQMP +expire_password +--------------- + +Set the password expire time for vnc/spice protocols. + +Arguments: + +- "protocol": protocol name (json-string) +- "time": [ now | never | +secs | secs ] (json-string) + +Example: + +-> { "execute": "expire_password", "arguments": { "protocol": "vnc", + "time": "+60" } } +<- { "return": {} } + +EQMP + + { + .name = "add_client", + .args_type = "protocol:s,fdname:s,skipauth:b?,tls:b?", + .params = "protocol fdname skipauth tls", + .help = "add a graphics client", + .user_print = monitor_user_noop, + .mhandler.cmd_new = add_graphics_client, + }, + +SQMP +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": {} } + +EQMP + { + .name = "qmp_capabilities", + .args_type = "", + .params = "", + .help = "enable QMP capabilities", + .user_print = monitor_user_noop, + .mhandler.cmd_new = do_qmp_capabilities, + }, + +SQMP +qmp_capabilities +---------------- + +Enable QMP capabilities. + +Arguments: None. + +Example: + +-> { "execute": "qmp_capabilities" } +<- { "return": {} } + +Note: This command must be issued before issuing any other command. + +EQMP + + { + .name = "human-monitor-command", + .args_type = "command-line:s,cpu-index:i?", + .mhandler.cmd_new = qmp_marshal_input_human_monitor_command, + }, + +SQMP +human-monitor-command +--------------------- + +Execute a Human Monitor command. + +Arguments: + +- command-line: the command name and its arguments, just like the + Human Monitor's shell (json-string) +- cpu-index: select the CPU number to be used by commands which access CPU + data, like 'info registers'. The Monitor selects CPU 0 if this + argument is not provided (json-int, optional) + +Example: + +-> { "execute": "human-monitor-command", "arguments": { "command-line": "info kvm" } } +<- { "return": "kvm support: enabled\r\n" } + +Notes: + +(1) The Human Monitor is NOT an stable interface, this means that command + names, arguments and responses can change or be removed at ANY time. + Applications that rely on long term stability guarantees should NOT + use this command + +(2) Limitations: + + o This command is stateless, this means that commands that depend + on state information (such as getfd) might not work + + o Commands that prompt the user for data (eg. 'cont' when the block + device is encrypted) don't currently work + +3. Query Commands +================= + +HXCOMM Each query command below is inside a SQMP/EQMP section, do NOT change +HXCOMM this! We will possibly move query commands definitions inside those +HXCOMM sections, just like regular commands. + +EQMP + +SQMP +query-version +------------- + +Show QEMU version. + +Return a json-object with the following information: + +- "qemu": A json-object containing three integer values: + - "major": QEMU's major version (json-int) + - "minor": QEMU's minor version (json-int) + - "micro": QEMU's micro version (json-int) +- "package": package's version (json-string) + +Example: + +-> { "execute": "query-version" } +<- { + "return":{ + "qemu":{ + "major":0, + "minor":11, + "micro":5 + }, + "package":"" + } + } + +EQMP + + { + .name = "query-version", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_version, + }, + +SQMP +query-commands +-------------- + +List QMP available commands. + +Each command is represented by a json-object, the returned value is a json-array +of all commands. + +Each json-object contain: + +- "name": command's name (json-string) + +Example: + +-> { "execute": "query-commands" } +<- { + "return":[ + { + "name":"query-balloon" + }, + { + "name":"system_powerdown" + } + ] + } + +Note: This example has been shortened as the real response is too long. + +EQMP + + { + .name = "query-commands", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_commands, + }, + +SQMP +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. + +EQMP + + { + .name = "query-events", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_events, + }, + +SQMP +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) + +Example: + +-> { "execute": "query-chardev" } +<- { + "return":[ + { + "label":"monitor", + "filename":"stdio" + }, + { + "label":"serial0", + "filename":"vc" + } + ] + } + +EQMP + + { + .name = "query-chardev", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_chardev, + }, + +SQMP +query-block +----------- + +Show the block devices. + +Each block device information is stored in a json-object and the returned value +is a json-array of all devices. + +Each json-object contain the following: + +- "device": device name (json-string) +- "type": device type (json-string) + - deprecated, retained for backward compatibility + - Possible values: "unknown" +- "removable": true if the device is removable, false otherwise (json-bool) +- "locked": true if the device is locked, false otherwise (json-bool) +- "tray-open": only present if removable, true if the device has a tray, + and it is open (json-bool) +- "inserted": only present if the device is inserted, it is a json-object + containing the following: + - "file": device file name (json-string) + - "ro": true if read-only, false otherwise (json-bool) + - "drv": driver format name (json-string) + - Possible values: "blkdebug", "bochs", "cloop", "cow", "dmg", + "file", "file", "ftp", "ftps", "host_cdrom", + "host_device", "host_floppy", "http", "https", + "nbd", "parallels", "qcow", "qcow2", "raw", + "tftp", "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) + - "bps": limit total bytes per second (json-int) + - "bps_rd": limit read bytes per second (json-int) + - "bps_wr": limit write bytes per second (json-int) + - "iops": limit total I/O operations per second (json-int) + - "iops_rd": limit read operations per second (json-int) + - "iops_wr": limit write operations per second (json-int) + +- "io-status": I/O operation status, only present if the device supports it + and the VM is configured to stop on errors. It's always reset + to "ok" when the "cont" command is issued (json_string, optional) + - Possible values: "ok", "failed", "nospace" + +Example: + +-> { "execute": "query-block" } +<- { + "return":[ + { + "io-status": "ok", + "device":"ide0-hd0", + "locked":false, + "removable":false, + "inserted":{ + "ro":false, + "drv":"qcow2", + "encrypted":false, + "file":"disks/test.img", + "backing_file_depth":0, + "bps":1000000, + "bps_rd":0, + "bps_wr":0, + "iops":1000000, + "iops_rd":0, + "iops_wr":0, + }, + "type":"unknown" + }, + { + "io-status": "ok", + "device":"ide1-cd0", + "locked":false, + "removable":true, + "type":"unknown" + }, + { + "device":"floppy0", + "locked":false, + "removable":true, + "type":"unknown" + }, + { + "device":"sd0", + "locked":false, + "removable":true, + "type":"unknown" + } + ] + } + +EQMP + + { + .name = "query-block", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_block, + }, + +SQMP +query-blockstats +---------------- + +Show block device statistics. + +Each device statistic information is stored in a json-object and the returned +value is a json-array of all devices. + +Each json-object contain the following: + +- "device": device name (json-string) +- "stats": A json-object with the statistics information, it contains: + - "rd_bytes": bytes read (json-int) + - "wr_bytes": bytes written (json-int) + - "rd_operations": read operations (json-int) + - "wr_operations": write operations (json-int) + - "flush_operations": cache flush operations (json-int) + - "wr_total_time_ns": total time spend on writes in nano-seconds (json-int) + - "rd_total_time_ns": total time spend on reads in nano-seconds (json-int) + - "flush_total_time_ns": total time spend on cache flushes in nano-seconds (json-int) + - "wr_highest_offset": Highest offset of a sector written since the + BlockDriverState has been opened (json-int) +- "parent": Contains recursively the statistics of the underlying + protocol (e.g. the host file for a qcow2 image). If there is + no underlying protocol, this field is omitted + (json-object, optional) + +Example: + +-> { "execute": "query-blockstats" } +<- { + "return":[ + { + "device":"ide0-hd0", + "parent":{ + "stats":{ + "wr_highest_offset":3686448128, + "wr_bytes":9786368, + "wr_operations":751, + "rd_bytes":122567168, + "rd_operations":36772 + "wr_total_times_ns":313253456 + "rd_total_times_ns":3465673657 + "flush_total_times_ns":49653 + "flush_operations":61, + } + }, + "stats":{ + "wr_highest_offset":2821110784, + "wr_bytes":9786368, + "wr_operations":692, + "rd_bytes":122739200, + "rd_operations":36604 + "flush_operations":51, + "wr_total_times_ns":313253456 + "rd_total_times_ns":3465673657 + "flush_total_times_ns":49653 + } + }, + { + "device":"ide1-cd0", + "stats":{ + "wr_highest_offset":0, + "wr_bytes":0, + "wr_operations":0, + "rd_bytes":0, + "rd_operations":0 + "flush_operations":0, + "wr_total_times_ns":0 + "rd_total_times_ns":0 + "flush_total_times_ns":0 + } + }, + { + "device":"floppy0", + "stats":{ + "wr_highest_offset":0, + "wr_bytes":0, + "wr_operations":0, + "rd_bytes":0, + "rd_operations":0 + "flush_operations":0, + "wr_total_times_ns":0 + "rd_total_times_ns":0 + "flush_total_times_ns":0 + } + }, + { + "device":"sd0", + "stats":{ + "wr_highest_offset":0, + "wr_bytes":0, + "wr_operations":0, + "rd_bytes":0, + "rd_operations":0 + "flush_operations":0, + "wr_total_times_ns":0 + "rd_total_times_ns":0 + "flush_total_times_ns":0 + } + } + ] + } + +EQMP + + { + .name = "query-blockstats", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_blockstats, + }, + +SQMP +query-cpus +---------- + +Show CPU information. + +Return a json-array. Each CPU is represented by a json-object, which contains: + +- "CPU": CPU index (json-int) +- "current": true if this is the current CPU, false otherwise (json-bool) +- "halted": true if the cpu is halted, false otherwise (json-bool) +- Current program counter. The key's name depends on the architecture: + "pc": i386/x86_64 (json-int) + "nip": PPC (json-int) + "pc" and "npc": sparc (json-int) + "PC": mips (json-int) +- "thread_id": ID of the underlying host thread (json-int) + +Example: + +-> { "execute": "query-cpus" } +<- { + "return":[ + { + "CPU":0, + "current":true, + "halted":false, + "pc":3227107138 + "thread_id":3134 + }, + { + "CPU":1, + "current":false, + "halted":true, + "pc":7108165 + "thread_id":3135 + } + ] + } + +EQMP + + { + .name = "query-cpus", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_cpus, + }, + +SQMP +query-pci +--------- + +PCI buses and devices information. + +The returned value is a json-array of all buses. Each bus is represented by +a json-object, which has a key with a json-array of all PCI devices attached +to it. Each device is represented by a json-object. + +The bus json-object contains the following: + +- "bus": bus number (json-int) +- "devices": a json-array of json-objects, each json-object represents a + PCI device + +The PCI device json-object contains the following: + +- "bus": identical to the parent's bus number (json-int) +- "slot": slot number (json-int) +- "function": function number (json-int) +- "class_info": a json-object containing: + - "desc": device class description (json-string, optional) + - "class": device class number (json-int) +- "id": a json-object containing: + - "device": device ID (json-int) + - "vendor": vendor ID (json-int) +- "irq": device's IRQ if assigned (json-int, optional) +- "qdev_id": qdev id string (json-string) +- "pci_bridge": It's a json-object, only present if this device is a + PCI bridge, contains: + - "bus": bus number (json-int) + - "secondary": secondary bus number (json-int) + - "subordinate": subordinate bus number (json-int) + - "io_range": I/O memory range information, a json-object with the + following members: + - "base": base address, in bytes (json-int) + - "limit": limit address, in bytes (json-int) + - "memory_range": memory range information, a json-object with the + following members: + - "base": base address, in bytes (json-int) + - "limit": limit address, in bytes (json-int) + - "prefetchable_range": Prefetchable memory range information, a + json-object with the following members: + - "base": base address, in bytes (json-int) + - "limit": limit address, in bytes (json-int) + - "devices": a json-array of PCI devices if there's any attached, each + each element is represented by a json-object, which contains + the same members of the 'PCI device json-object' described + above (optional) +- "regions": a json-array of json-objects, each json-object represents a + memory region of this device + +The memory range json-object contains the following: + +- "base": base memory address (json-int) +- "limit": limit value (json-int) + +The region json-object can be an I/O region or a memory region, an I/O region +json-object contains the following: + +- "type": "io" (json-string, fixed) +- "bar": BAR number (json-int) +- "address": memory address (json-int) +- "size": memory size (json-int) + +A memory region json-object contains the following: + +- "type": "memory" (json-string, fixed) +- "bar": BAR number (json-int) +- "address": memory address (json-int) +- "size": memory size (json-int) +- "mem_type_64": true or false (json-bool) +- "prefetch": true or false (json-bool) + +Example: + +-> { "execute": "query-pci" } +<- { + "return":[ + { + "bus":0, + "devices":[ + { + "bus":0, + "qdev_id":"", + "slot":0, + "class_info":{ + "class":1536, + "desc":"Host bridge" + }, + "id":{ + "device":32902, + "vendor":4663 + }, + "function":0, + "regions":[ + + ] + }, + { + "bus":0, + "qdev_id":"", + "slot":1, + "class_info":{ + "class":1537, + "desc":"ISA bridge" + }, + "id":{ + "device":32902, + "vendor":28672 + }, + "function":0, + "regions":[ + + ] + }, + { + "bus":0, + "qdev_id":"", + "slot":1, + "class_info":{ + "class":257, + "desc":"IDE controller" + }, + "id":{ + "device":32902, + "vendor":28688 + }, + "function":1, + "regions":[ + { + "bar":4, + "size":16, + "address":49152, + "type":"io" + } + ] + }, + { + "bus":0, + "qdev_id":"", + "slot":2, + "class_info":{ + "class":768, + "desc":"VGA controller" + }, + "id":{ + "device":4115, + "vendor":184 + }, + "function":0, + "regions":[ + { + "prefetch":true, + "mem_type_64":false, + "bar":0, + "size":33554432, + "address":4026531840, + "type":"memory" + }, + { + "prefetch":false, + "mem_type_64":false, + "bar":1, + "size":4096, + "address":4060086272, + "type":"memory" + }, + { + "prefetch":false, + "mem_type_64":false, + "bar":6, + "size":65536, + "address":-1, + "type":"memory" + } + ] + }, + { + "bus":0, + "qdev_id":"", + "irq":11, + "slot":4, + "class_info":{ + "class":1280, + "desc":"RAM controller" + }, + "id":{ + "device":6900, + "vendor":4098 + }, + "function":0, + "regions":[ + { + "bar":0, + "size":32, + "address":49280, + "type":"io" + } + ] + } + ] + } + ] + } + +Note: This example has been shortened as the real response is too long. + +EQMP + + { + .name = "query-pci", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_pci, + }, + +SQMP +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 } } + +EQMP + + { + .name = "query-kvm", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_kvm, + }, + +SQMP +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" } } + +EQMP + + { + .name = "query-status", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_status, + }, + +SQMP +query-mice +---------- + +Show VM mice information. + +Each mouse is represented by a json-object, the returned value is a json-array +of all mice. + +The mouse json-object contains the following: + +- "name": mouse's name (json-string) +- "index": mouse's index (json-int) +- "current": true if this mouse is receiving events, false otherwise (json-bool) +- "absolute": true if the mouse generates absolute input events (json-bool) + +Example: + +-> { "execute": "query-mice" } +<- { + "return":[ + { + "name":"QEMU Microsoft Mouse", + "index":0, + "current":false, + "absolute":false + }, + { + "name":"QEMU PS/2 Mouse", + "index":1, + "current":true, + "absolute":true + } + ] + } + +EQMP + + { + .name = "query-mice", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_mice, + }, + +SQMP +query-vnc +--------- + +Show VNC server information. + +Return a json-object with server information. Connected clients are returned +as a json-array of json-objects. + +The main json-object contains the following: + +- "enabled": true or false (json-bool) +- "host": server's IP address (json-string) +- "family": address family (json-string) + - Possible values: "ipv4", "ipv6", "unix", "unknown" +- "service": server's port number (json-string) +- "auth": authentication method (json-string) + - Possible values: "invalid", "none", "ra2", "ra2ne", "sasl", "tight", + "tls", "ultra", "unknown", "vencrypt", "vencrypt", + "vencrypt+plain", "vencrypt+tls+none", + "vencrypt+tls+plain", "vencrypt+tls+sasl", + "vencrypt+tls+vnc", "vencrypt+x509+none", + "vencrypt+x509+plain", "vencrypt+x509+sasl", + "vencrypt+x509+vnc", "vnc" +- "clients": a json-array of all connected clients + +Clients are described by a json-object, each one contain the following: + +- "host": client's IP address (json-string) +- "family": address family (json-string) + - Possible values: "ipv4", "ipv6", "unix", "unknown" +- "service": client's port number (json-string) +- "x509_dname": TLS dname (json-string, optional) +- "sasl_username": SASL username (json-string, optional) + +Example: + +-> { "execute": "query-vnc" } +<- { + "return":{ + "enabled":true, + "host":"0.0.0.0", + "service":"50402", + "auth":"vnc", + "family":"ipv4", + "clients":[ + { + "host":"127.0.0.1", + "service":"50401", + "family":"ipv4" + } + ] + } + } + +EQMP + + { + .name = "query-vnc", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_vnc, + }, + +SQMP +query-spice +----------- + +Show SPICE server information. + +Return a json-object with server information. Connected clients are returned +as a json-array of json-objects. + +The main json-object contains the following: + +- "enabled": true or false (json-bool) +- "host": server's IP address (json-string) +- "port": server's port number (json-int, optional) +- "tls-port": server's port number (json-int, optional) +- "auth": authentication method (json-string) + - Possible values: "none", "spice" +- "channels": a json-array of all active channels clients + +Channels are described by a json-object, each one contain the following: + +- "host": client's IP address (json-string) +- "family": address family (json-string) + - Possible values: "ipv4", "ipv6", "unix", "unknown" +- "port": client's port number (json-string) +- "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: + +-> { "execute": "query-spice" } +<- { + "return": { + "enabled": true, + "auth": "spice", + "port": 5920, + "tls-port": 5921, + "host": "0.0.0.0", + "channels": [ + { + "port": "54924", + "family": "ipv4", + "channel-type": 1, + "connection-id": 1804289383, + "host": "127.0.0.1", + "channel-id": 0, + "tls": true + }, + { + "port": "36710", + "family": "ipv4", + "channel-type": 4, + "connection-id": 1804289383, + "host": "127.0.0.1", + "channel-id": 0, + "tls": false + }, + [ ... more channels follow ... ] + ] + } + } + +EQMP + +#if defined(CONFIG_SPICE) + { + .name = "query-spice", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_spice, + }, +#endif + +SQMP +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" } } + +EQMP + + { + .name = "query-name", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_name, + }, + +SQMP +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" } } + +EQMP + + { + .name = "query-uuid", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_uuid, + }, + +SQMP +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: "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) +- "ram": only present if "status" is "active", it is a json-object with the + following RAM information (in bytes): + - "transferred": amount transferred (json-int) + - "remaining": amount remaining (json-int) + - "total": total (json-int) + - "duplicate": number of duplicated pages (json-int) + - "normal" : number of normal pages transferred (json-int) + - "normal-bytes" : number of normal bytes transferred (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 (in bytes): + - "transferred": amount transferred (json-int) + - "remaining": amount remaining (json-int) + - "total": total (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 + - "bytes": total XBZRLE bytes transferred + - "pages": number of XBZRLE compressed pages + - "cache-miss": number of cache misses + - "overflow": number of XBZRLE overflows +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, + "duplicate":123, + "normal":123, + "normal-bytes":123456 + } + } + } + +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, + "duplicate":123, + "normal":123, + "normal-bytes":123456 + } + } + } + +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, + "duplicate":123, + "normal":123, + "normal-bytes":123456 + }, + "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, + "duplicate":10, + "normal":3333, + "normal-bytes":3412992 + }, + "xbzrle-cache":{ + "cache-size":67108864, + "bytes":20971520, + "pages":2444343, + "cache-miss":2244, + "overflow":34434 + } + } + } + +EQMP + + { + .name = "query-migrate", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_migrate, + }, + +SQMP +migrate-set-capabilities +------- + +Enable/Disable migration capabilities + +- "xbzrle": xbzrle support + +Arguments: + +Example: + +-> { "execute": "migrate-set-capabilities" , "arguments": + { "capabilities": [ { "capability": "xbzrle", "state": true } ] } } + +EQMP + + { + .name = "migrate-set-capabilities", + .args_type = "capabilities:O", + .params = "capability:s,state:b", + .mhandler.cmd_new = qmp_marshal_input_migrate_set_capabilities, + }, +SQMP +query-migrate-capabilities +------- + +Query current migration capabilities + +- "capabilities": migration capabilities state + - "xbzrle" : XBZRLE state (json-bool) + +Arguments: + +Example: + +-> { "execute": "query-migrate-capabilities" } +<- { "return": { + "capabilities" : [ { "capability" : "xbzrle", "state" : false } ] + } + } +EQMP + + { + .name = "query-migrate-capabilities", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_migrate_capabilities, + }, + +SQMP +query-balloon +------------- + +Show balloon information. + +Make an asynchronous request for balloon info. When the request completes a +json-object will be returned containing the following data: + +- "actual": current balloon value in bytes (json-int) +- "mem_swapped_in": Amount of memory swapped in bytes (json-int, optional) +- "mem_swapped_out": Amount of memory swapped out in bytes (json-int, optional) +- "major_page_faults": Number of major faults (json-int, optional) +- "minor_page_faults": Number of minor faults (json-int, optional) +- "free_mem": Total amount of free and unused memory in + bytes (json-int, optional) +- "total_mem": Total amount of available memory in bytes (json-int, optional) + +Example: + +-> { "execute": "query-balloon" } +<- { + "return":{ + "actual":1073741824, + "mem_swapped_in":0, + "mem_swapped_out":0, + "major_page_faults":142, + "minor_page_faults":239245, + "free_mem":1014185984, + "total_mem":1044668416 + } + } + +EQMP + + { + .name = "query-balloon", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_balloon, + }, + + { + .name = "query-block-jobs", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_block_jobs, + }, + + { + .name = "qom-list", + .args_type = "path:s", + .mhandler.cmd_new = qmp_marshal_input_qom_list, + }, + + { + .name = "qom-set", + .args_type = "path:s,property:s,value:q", + .mhandler.cmd_new = qmp_qom_set, + }, + + { + .name = "qom-get", + .args_type = "path:s,property:s", + .mhandler.cmd_new = qmp_qom_get, + }, + + { + .name = "change-vnc-password", + .args_type = "password:s", + .mhandler.cmd_new = qmp_marshal_input_change_vnc_password, + }, + { + .name = "qom-list-types", + .args_type = "implements:s?,abstract:b?", + .mhandler.cmd_new = qmp_marshal_input_qom_list_types, + }, + + { + .name = "device-list-properties", + .args_type = "typename:s", + .mhandler.cmd_new = qmp_marshal_input_device_list_properties, + }, + + { + .name = "query-machines", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_machines, + }, + + { + .name = "query-cpu-definitions", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_cpu_definitions, + }, + + { + .name = "query-target", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_target, + }, |