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HXCOMM QMP dispatch table and documentation |
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HXCOMM Text between SQMP and EQMP is copied to the QMP documention file and |
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HXCOMM does not show up in the other formats. |
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|
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SQMP |
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QMP Supported Commands |
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---------------------- |
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|
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This document describes all commands currently supported by QMP. |
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|
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Most of the time their usage is exactly the same as in the user Monitor, this |
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means that any other document which also describe commands (the manpage, |
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QEMU's manual, etc) can and should be consulted. |
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|
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QMP has two types of commands: regular and query commands. Regular commands |
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usually change the Virtual Machine's state someway, while query commands just |
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return information. The sections below are divided accordingly. |
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|
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It's important to observe that all communication examples are formatted in |
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a reader-friendly way, so that they're easier to understand. However, in real |
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protocol usage, they're emitted as a single line. |
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|
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Also, the following notation is used to denote data flow: |
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|
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-> data issued by the Client |
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<- Server data response |
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|
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Please, refer to the QMP specification (QMP/qmp-spec.txt) for detailed |
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information on the Server command and response formats. |
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|
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NOTE: This document is temporary and will be replaced soon. |
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|
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1. Stability Considerations |
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=========================== |
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|
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The current QMP command set (described in this file) may be useful for a |
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number of use cases, however it's limited and several commands have bad |
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defined semantics, specially with regard to command completion. |
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|
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These problems are going to be solved incrementally in the next QEMU releases |
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and we're going to establish a deprecation policy for badly defined commands. |
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|
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If you're planning to adopt QMP, please observe the following: |
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|
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1. The deprecation policy will take effect and be documented soon, please |
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check the documentation of each used command as soon as a new release of |
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QEMU is available |
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|
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2. DO NOT rely on anything which is not explicit documented |
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|
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3. Errors, in special, are not documented. Applications should NOT check |
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for specific errors classes or data (it's strongly recommended to only |
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check for the "error" key) |
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|
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2. Regular Commands |
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=================== |
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|
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Server's responses in the examples below are always a success response, please |
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refer to the QMP specification for more details on error responses. |
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|
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EQMP |
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|
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{ |
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.name = "quit", |
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.args_type = "", |
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.mhandler.cmd_new = qmp_marshal_input_quit, |
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}, |
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|
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SQMP |
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quit |
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---- |
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|
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Quit the emulator. |
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|
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Arguments: None. |
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|
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Example: |
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|
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-> { "execute": "quit" } |
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<- { "return": {} } |
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|
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EQMP |
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|
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{ |
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.name = "eject", |
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.args_type = "force:-f,device:B", |
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.mhandler.cmd_new = qmp_marshal_input_eject, |
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}, |
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|
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SQMP |
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eject |
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----- |
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|
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Eject a removable medium. |
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|
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Arguments: |
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|
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- force: force ejection (json-bool, optional) |
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- device: device name (json-string) |
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|
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Example: |
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|
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-> { "execute": "eject", "arguments": { "device": "ide1-cd0" } } |
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<- { "return": {} } |
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|
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Note: The "force" argument defaults to false. |
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|
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EQMP |
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|
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{ |
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.name = "change", |
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.args_type = "device:B,target:F,arg:s?", |
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.mhandler.cmd_new = qmp_marshal_input_change, |
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}, |
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|
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SQMP |
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change |
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------ |
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|
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Change a removable medium or VNC configuration. |
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|
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Arguments: |
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|
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- "device": device name (json-string) |
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- "target": filename or item (json-string) |
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- "arg": additional argument (json-string, optional) |
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|
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Examples: |
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|
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1. Change a removable medium |
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|
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-> { "execute": "change", |
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"arguments": { "device": "ide1-cd0", |
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"target": "/srv/images/Fedora-12-x86_64-DVD.iso" } } |
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<- { "return": {} } |
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|
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2. Change VNC password |
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|
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-> { "execute": "change", |
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"arguments": { "device": "vnc", "target": "password", |
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"arg": "foobar1" } } |
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<- { "return": {} } |
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|
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EQMP |
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|
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{ |
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.name = "screendump", |
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.args_type = "filename:F", |
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.params = "filename", |
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.help = "save screen into PPM image 'filename'", |
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.user_print = monitor_user_noop, |
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.mhandler.cmd_new = do_screen_dump, |
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}, |
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|
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SQMP |
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screendump |
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---------- |
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|
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Save screen into PPM image. |
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|
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Arguments: |
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|
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- "filename": file path (json-string) |
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|
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Example: |
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|
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-> { "execute": "screendump", "arguments": { "filename": "/tmp/image" } } |
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<- { "return": {} } |
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|
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EQMP |
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|
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{ |
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.name = "stop", |
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.args_type = "", |
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.mhandler.cmd_new = qmp_marshal_input_stop, |
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}, |
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|
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SQMP |
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stop |
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---- |
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|
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Stop the emulator. |
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|
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Arguments: None. |
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|
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Example: |
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|
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-> { "execute": "stop" } |
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<- { "return": {} } |
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|
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EQMP |
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|
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{ |
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.name = "cont", |
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.args_type = "", |
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.mhandler.cmd_new = qmp_marshal_input_cont, |
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}, |
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|
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SQMP |
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cont |
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---- |
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|
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Resume emulation. |
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|
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Arguments: None. |
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|
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Example: |
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|
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-> { "execute": "cont" } |
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<- { "return": {} } |
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|
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EQMP |
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|
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{ |
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.name = "system_wakeup", |
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.args_type = "", |
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.mhandler.cmd_new = qmp_marshal_input_system_wakeup, |
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}, |
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|
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SQMP |
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system_wakeup |
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------------- |
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|
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Wakeup guest from suspend. |
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|
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Arguments: None. |
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|
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Example: |
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|
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-> { "execute": "system_wakeup" } |
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<- { "return": {} } |
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|
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EQMP |
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|
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{ |
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.name = "system_reset", |
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.args_type = "", |
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.mhandler.cmd_new = qmp_marshal_input_system_reset, |
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}, |
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|
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SQMP |
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system_reset |
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------------ |
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|
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Reset the system. |
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|
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Arguments: None. |
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|
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Example: |
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|
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-> { "execute": "system_reset" } |
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<- { "return": {} } |
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|
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EQMP |
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|
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{ |
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.name = "system_powerdown", |
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.args_type = "", |
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.mhandler.cmd_new = qmp_marshal_input_system_powerdown, |
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}, |
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|
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SQMP |
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system_powerdown |
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---------------- |
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|
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Send system power down event. |
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|
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Arguments: None. |
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|
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Example: |
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|
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-> { "execute": "system_powerdown" } |
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<- { "return": {} } |
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|
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EQMP |
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|
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{ |
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.name = "device_add", |
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.args_type = "device:O", |
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.params = "driver[,prop=value][,...]", |
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.help = "add device, like -device on the command line", |
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.user_print = monitor_user_noop, |
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.mhandler.cmd_new = do_device_add, |
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}, |
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|
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SQMP |
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device_add |
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---------- |
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|
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Add a device. |
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|
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Arguments: |
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|
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- "driver": the name of the new device's driver (json-string) |
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- "bus": the device's parent bus (device tree path, json-string, optional) |
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- "id": the device's ID, must be unique (json-string) |
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- device properties |
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|
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Example: |
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|
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-> { "execute": "device_add", "arguments": { "driver": "e1000", "id": "net1" } } |
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<- { "return": {} } |
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|
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Notes: |
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|
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(1) For detailed information about this command, please refer to the |
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'docs/qdev-device-use.txt' file. |
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|
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(2) It's possible to list device properties by running QEMU with the |
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"-device DEVICE,\?" command-line argument, where DEVICE is the device's name |
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|
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EQMP |
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|
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{ |
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.name = "device_del", |
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.args_type = "id:s", |
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.mhandler.cmd_new = qmp_marshal_input_device_del, |
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}, |
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|
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SQMP |
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device_del |
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---------- |
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|
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Remove a device. |
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|
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Arguments: |
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|
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- "id": the device's ID (json-string) |
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|
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Example: |
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|
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-> { "execute": "device_del", "arguments": { "id": "net1" } } |
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<- { "return": {} } |
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|
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EQMP |
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|
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{ |
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.name = "cpu", |
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.args_type = "index:i", |
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.mhandler.cmd_new = qmp_marshal_input_cpu, |
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}, |
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|
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SQMP |
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cpu |
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--- |
346 |
|
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Set the default CPU. |
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|
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Arguments: |
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|
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- "index": the CPU's index (json-int) |
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|
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Example: |
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|
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-> { "execute": "cpu", "arguments": { "index": 0 } } |
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<- { "return": {} } |
357 |
|
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Note: CPUs' indexes are obtained with the 'query-cpus' command. |
359 |
|
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EQMP |
361 |
|
362 |
{ |
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.name = "memsave", |
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.args_type = "val:l,size:i,filename:s,cpu:i?", |
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.mhandler.cmd_new = qmp_marshal_input_memsave, |
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}, |
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|
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SQMP |
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memsave |
370 |
------- |
371 |
|
372 |
Save to disk virtual memory dump starting at 'val' of size 'size'. |
373 |
|
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Arguments: |
375 |
|
376 |
- "val": the starting address (json-int) |
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- "size": the memory size, in bytes (json-int) |
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- "filename": file path (json-string) |
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- "cpu": virtual CPU index (json-int, optional) |
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|
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Example: |
382 |
|
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-> { "execute": "memsave", |
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"arguments": { "val": 10, |
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"size": 100, |
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"filename": "/tmp/virtual-mem-dump" } } |
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<- { "return": {} } |
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|
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EQMP |
390 |
|
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{ |
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.name = "pmemsave", |
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.args_type = "val:l,size:i,filename:s", |
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.mhandler.cmd_new = qmp_marshal_input_pmemsave, |
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}, |
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|
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SQMP |
398 |
pmemsave |
399 |
-------- |
400 |
|
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Save to disk physical memory dump starting at 'val' of size 'size'. |
402 |
|
403 |
Arguments: |
404 |
|
405 |
- "val": the starting address (json-int) |
406 |
- "size": the memory size, in bytes (json-int) |
407 |
- "filename": file path (json-string) |
408 |
|
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Example: |
410 |
|
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-> { "execute": "pmemsave", |
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"arguments": { "val": 10, |
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"size": 100, |
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"filename": "/tmp/physical-mem-dump" } } |
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<- { "return": {} } |
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|
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EQMP |
418 |
|
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{ |
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.name = "inject-nmi", |
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.args_type = "", |
422 |
.mhandler.cmd_new = qmp_marshal_input_inject_nmi, |
423 |
}, |
424 |
|
425 |
SQMP |
426 |
inject-nmi |
427 |
---------- |
428 |
|
429 |
Inject an NMI on guest's CPUs. |
430 |
|
431 |
Arguments: None. |
432 |
|
433 |
Example: |
434 |
|
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-> { "execute": "inject-nmi" } |
436 |
<- { "return": {} } |
437 |
|
438 |
Note: inject-nmi is only supported for x86 guest currently, it will |
439 |
returns "Unsupported" error for non-x86 guest. |
440 |
|
441 |
EQMP |
442 |
|
443 |
{ |
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.name = "xen-save-devices-state", |
445 |
.args_type = "filename:F", |
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.mhandler.cmd_new = qmp_marshal_input_xen_save_devices_state, |
447 |
}, |
448 |
|
449 |
SQMP |
450 |
xen-save-devices-state |
451 |
------- |
452 |
|
453 |
Save the state of all devices to file. The RAM and the block devices |
454 |
of the VM are not saved by this command. |
455 |
|
456 |
Arguments: |
457 |
|
458 |
- "filename": the file to save the state of the devices to as binary |
459 |
data. See xen-save-devices-state.txt for a description of the binary |
460 |
format. |
461 |
|
462 |
Example: |
463 |
|
464 |
-> { "execute": "xen-save-devices-state", |
465 |
"arguments": { "filename": "/tmp/save" } } |
466 |
<- { "return": {} } |
467 |
|
468 |
EQMP |
469 |
|
470 |
{ |
471 |
.name = "migrate", |
472 |
.args_type = "detach:-d,blk:-b,inc:-i,uri:s", |
473 |
.mhandler.cmd_new = qmp_marshal_input_migrate, |
474 |
}, |
475 |
|
476 |
SQMP |
477 |
migrate |
478 |
------- |
479 |
|
480 |
Migrate to URI. |
481 |
|
482 |
Arguments: |
483 |
|
484 |
- "blk": block migration, full disk copy (json-bool, optional) |
485 |
- "inc": incremental disk copy (json-bool, optional) |
486 |
- "uri": Destination URI (json-string) |
487 |
|
488 |
Example: |
489 |
|
490 |
-> { "execute": "migrate", "arguments": { "uri": "tcp:0:4446" } } |
491 |
<- { "return": {} } |
492 |
|
493 |
Notes: |
494 |
|
495 |
(1) The 'query-migrate' command should be used to check migration's progress |
496 |
and final result (this information is provided by the 'status' member) |
497 |
(2) All boolean arguments default to false |
498 |
(3) The user Monitor's "detach" argument is invalid in QMP and should not |
499 |
be used |
500 |
|
501 |
EQMP |
502 |
|
503 |
{ |
504 |
.name = "migrate_cancel", |
505 |
.args_type = "", |
506 |
.mhandler.cmd_new = qmp_marshal_input_migrate_cancel, |
507 |
}, |
508 |
|
509 |
SQMP |
510 |
migrate_cancel |
511 |
-------------- |
512 |
|
513 |
Cancel the current migration. |
514 |
|
515 |
Arguments: None. |
516 |
|
517 |
Example: |
518 |
|
519 |
-> { "execute": "migrate_cancel" } |
520 |
<- { "return": {} } |
521 |
|
522 |
EQMP |
523 |
|
524 |
{ |
525 |
.name = "migrate_set_speed", |
526 |
.args_type = "value:o", |
527 |
.mhandler.cmd_new = qmp_marshal_input_migrate_set_speed, |
528 |
}, |
529 |
|
530 |
SQMP |
531 |
migrate_set_speed |
532 |
----------------- |
533 |
|
534 |
Set maximum speed for migrations. |
535 |
|
536 |
Arguments: |
537 |
|
538 |
- "value": maximum speed, in bytes per second (json-int) |
539 |
|
540 |
Example: |
541 |
|
542 |
-> { "execute": "migrate_set_speed", "arguments": { "value": 1024 } } |
543 |
<- { "return": {} } |
544 |
|
545 |
EQMP |
546 |
|
547 |
{ |
548 |
.name = "migrate_set_downtime", |
549 |
.args_type = "value:T", |
550 |
.mhandler.cmd_new = qmp_marshal_input_migrate_set_downtime, |
551 |
}, |
552 |
|
553 |
SQMP |
554 |
migrate_set_downtime |
555 |
-------------------- |
556 |
|
557 |
Set maximum tolerated downtime (in seconds) for migrations. |
558 |
|
559 |
Arguments: |
560 |
|
561 |
- "value": maximum downtime (json-number) |
562 |
|
563 |
Example: |
564 |
|
565 |
-> { "execute": "migrate_set_downtime", "arguments": { "value": 0.1 } } |
566 |
<- { "return": {} } |
567 |
|
568 |
EQMP |
569 |
|
570 |
{ |
571 |
.name = "client_migrate_info", |
572 |
.args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?", |
573 |
.params = "protocol hostname port tls-port cert-subject", |
574 |
.help = "send migration info to spice/vnc client", |
575 |
.user_print = monitor_user_noop, |
576 |
.mhandler.cmd_async = client_migrate_info, |
577 |
.flags = MONITOR_CMD_ASYNC, |
578 |
}, |
579 |
|
580 |
SQMP |
581 |
client_migrate_info |
582 |
------------------ |
583 |
|
584 |
Set the spice/vnc connection info for the migration target. The spice/vnc |
585 |
server will ask the spice/vnc client to automatically reconnect using the |
586 |
new parameters (if specified) once the vm migration finished successfully. |
587 |
|
588 |
Arguments: |
589 |
|
590 |
- "protocol": protocol: "spice" or "vnc" (json-string) |
591 |
- "hostname": migration target hostname (json-string) |
592 |
- "port": spice/vnc tcp port for plaintext channels (json-int, optional) |
593 |
- "tls-port": spice tcp port for tls-secured channels (json-int, optional) |
594 |
- "cert-subject": server certificate subject (json-string, optional) |
595 |
|
596 |
Example: |
597 |
|
598 |
-> { "execute": "client_migrate_info", |
599 |
"arguments": { "protocol": "spice", |
600 |
"hostname": "virt42.lab.kraxel.org", |
601 |
"port": 1234 } } |
602 |
<- { "return": {} } |
603 |
|
604 |
EQMP |
605 |
|
606 |
{ |
607 |
.name = "netdev_add", |
608 |
.args_type = "netdev:O", |
609 |
.params = "[user|tap|socket],id=str[,prop=value][,...]", |
610 |
.help = "add host network device", |
611 |
.user_print = monitor_user_noop, |
612 |
.mhandler.cmd_new = do_netdev_add, |
613 |
}, |
614 |
|
615 |
SQMP |
616 |
netdev_add |
617 |
---------- |
618 |
|
619 |
Add host network device. |
620 |
|
621 |
Arguments: |
622 |
|
623 |
- "type": the device type, "tap", "user", ... (json-string) |
624 |
- "id": the device's ID, must be unique (json-string) |
625 |
- device options |
626 |
|
627 |
Example: |
628 |
|
629 |
-> { "execute": "netdev_add", "arguments": { "type": "user", "id": "netdev1" } } |
630 |
<- { "return": {} } |
631 |
|
632 |
Note: The supported device options are the same ones supported by the '-net' |
633 |
command-line argument, which are listed in the '-help' output or QEMU's |
634 |
manual |
635 |
|
636 |
EQMP |
637 |
|
638 |
{ |
639 |
.name = "netdev_del", |
640 |
.args_type = "id:s", |
641 |
.params = "id", |
642 |
.help = "remove host network device", |
643 |
.user_print = monitor_user_noop, |
644 |
.mhandler.cmd_new = do_netdev_del, |
645 |
}, |
646 |
|
647 |
SQMP |
648 |
netdev_del |
649 |
---------- |
650 |
|
651 |
Remove host network device. |
652 |
|
653 |
Arguments: |
654 |
|
655 |
- "id": the device's ID, must be unique (json-string) |
656 |
|
657 |
Example: |
658 |
|
659 |
-> { "execute": "netdev_del", "arguments": { "id": "netdev1" } } |
660 |
<- { "return": {} } |
661 |
|
662 |
|
663 |
EQMP |
664 |
|
665 |
{ |
666 |
.name = "block_resize", |
667 |
.args_type = "device:B,size:o", |
668 |
.mhandler.cmd_new = qmp_marshal_input_block_resize, |
669 |
}, |
670 |
|
671 |
SQMP |
672 |
block_resize |
673 |
------------ |
674 |
|
675 |
Resize a block image while a guest is running. |
676 |
|
677 |
Arguments: |
678 |
|
679 |
- "device": the device's ID, must be unique (json-string) |
680 |
- "size": new size |
681 |
|
682 |
Example: |
683 |
|
684 |
-> { "execute": "block_resize", "arguments": { "device": "scratch", "size": 1073741824 } } |
685 |
<- { "return": {} } |
686 |
|
687 |
EQMP |
688 |
|
689 |
{ |
690 |
.name = "block-stream", |
691 |
.args_type = "device:B,base:s?,speed:o?", |
692 |
.mhandler.cmd_new = qmp_marshal_input_block_stream, |
693 |
}, |
694 |
|
695 |
{ |
696 |
.name = "block-job-set-speed", |
697 |
.args_type = "device:B,speed:o", |
698 |
.mhandler.cmd_new = qmp_marshal_input_block_job_set_speed, |
699 |
}, |
700 |
|
701 |
{ |
702 |
.name = "block-job-cancel", |
703 |
.args_type = "device:B", |
704 |
.mhandler.cmd_new = qmp_marshal_input_block_job_cancel, |
705 |
}, |
706 |
{ |
707 |
.name = "transaction", |
708 |
.args_type = "actions:q", |
709 |
.mhandler.cmd_new = qmp_marshal_input_transaction, |
710 |
}, |
711 |
|
712 |
SQMP |
713 |
transaction |
714 |
----------- |
715 |
|
716 |
Atomically operate on one or more block devices. The only supported |
717 |
operation for now is snapshotting. If there is any failure performing |
718 |
any of the operations, all snapshots for the group are abandoned, and |
719 |
the original disks pre-snapshot attempt are used. |
720 |
|
721 |
A list of dictionaries is accepted, that contains the actions to be performed. |
722 |
For snapshots this is the device, the file to use for the new snapshot, |
723 |
and the format. The default format, if not specified, is qcow2. |
724 |
|
725 |
Each new snapshot defaults to being created by QEMU (wiping any |
726 |
contents if the file already exists), but it is also possible to reuse |
727 |
an externally-created file. In the latter case, you should ensure that |
728 |
the new image file has the same contents as the current one; QEMU cannot |
729 |
perform any meaningful check. Typically this is achieved by using the |
730 |
current image file as the backing file for the new image. |
731 |
|
732 |
Arguments: |
733 |
|
734 |
actions array: |
735 |
- "type": the operation to perform. The only supported |
736 |
value is "blockdev-snapshot-sync". (json-string) |
737 |
- "data": a dictionary. The contents depend on the value |
738 |
of "type". When "type" is "blockdev-snapshot-sync": |
739 |
- "device": device name to snapshot (json-string) |
740 |
- "snapshot-file": name of new image file (json-string) |
741 |
- "format": format of new image (json-string, optional) |
742 |
- "mode": whether and how QEMU should create the snapshot file |
743 |
(NewImageMode, optional, default "absolute-paths") |
744 |
|
745 |
Example: |
746 |
|
747 |
-> { "execute": "transaction", |
748 |
"arguments": { "actions": [ |
749 |
{ 'type': 'blockdev-snapshot-sync', 'data' : { "device": "ide-hd0", |
750 |
"snapshot-file": "/some/place/my-image", |
751 |
"format": "qcow2" } }, |
752 |
{ 'type': 'blockdev-snapshot-sync', 'data' : { "device": "ide-hd1", |
753 |
"snapshot-file": "/some/place/my-image2", |
754 |
"mode": "existing", |
755 |
"format": "qcow2" } } ] } } |
756 |
<- { "return": {} } |
757 |
|
758 |
EQMP |
759 |
|
760 |
{ |
761 |
.name = "blockdev-snapshot-sync", |
762 |
.args_type = "device:B,snapshot-file:s,format:s?", |
763 |
.mhandler.cmd_new = qmp_marshal_input_blockdev_snapshot_sync, |
764 |
}, |
765 |
|
766 |
SQMP |
767 |
blockdev-snapshot-sync |
768 |
---------------------- |
769 |
|
770 |
Synchronous snapshot of a block device. snapshot-file specifies the |
771 |
target of the new image. If the file exists, or if it is a device, the |
772 |
snapshot will be created in the existing file/device. If does not |
773 |
exist, a new file will be created. format specifies the format of the |
774 |
snapshot image, default is qcow2. |
775 |
|
776 |
Arguments: |
777 |
|
778 |
- "device": device name to snapshot (json-string) |
779 |
- "snapshot-file": name of new image file (json-string) |
780 |
- "mode": whether and how QEMU should create the snapshot file |
781 |
(NewImageMode, optional, default "absolute-paths") |
782 |
- "format": format of new image (json-string, optional) |
783 |
|
784 |
Example: |
785 |
|
786 |
-> { "execute": "blockdev-snapshot-sync", "arguments": { "device": "ide-hd0", |
787 |
"snapshot-file": |
788 |
"/some/place/my-image", |
789 |
"format": "qcow2" } } |
790 |
<- { "return": {} } |
791 |
|
792 |
EQMP |
793 |
|
794 |
{ |
795 |
.name = "balloon", |
796 |
.args_type = "value:M", |
797 |
.mhandler.cmd_new = qmp_marshal_input_balloon, |
798 |
}, |
799 |
|
800 |
SQMP |
801 |
balloon |
802 |
------- |
803 |
|
804 |
Request VM to change its memory allocation (in bytes). |
805 |
|
806 |
Arguments: |
807 |
|
808 |
- "value": New memory allocation (json-int) |
809 |
|
810 |
Example: |
811 |
|
812 |
-> { "execute": "balloon", "arguments": { "value": 536870912 } } |
813 |
<- { "return": {} } |
814 |
|
815 |
EQMP |
816 |
|
817 |
{ |
818 |
.name = "set_link", |
819 |
.args_type = "name:s,up:b", |
820 |
.mhandler.cmd_new = qmp_marshal_input_set_link, |
821 |
}, |
822 |
|
823 |
SQMP |
824 |
set_link |
825 |
-------- |
826 |
|
827 |
Change the link status of a network adapter. |
828 |
|
829 |
Arguments: |
830 |
|
831 |
- "name": network device name (json-string) |
832 |
- "up": status is up (json-bool) |
833 |
|
834 |
Example: |
835 |
|
836 |
-> { "execute": "set_link", "arguments": { "name": "e1000.0", "up": false } } |
837 |
<- { "return": {} } |
838 |
|
839 |
EQMP |
840 |
|
841 |
{ |
842 |
.name = "getfd", |
843 |
.args_type = "fdname:s", |
844 |
.params = "getfd name", |
845 |
.help = "receive a file descriptor via SCM rights and assign it a name", |
846 |
.user_print = monitor_user_noop, |
847 |
.mhandler.cmd_new = do_getfd, |
848 |
}, |
849 |
|
850 |
SQMP |
851 |
getfd |
852 |
----- |
853 |
|
854 |
Receive a file descriptor via SCM rights and assign it a name. |
855 |
|
856 |
Arguments: |
857 |
|
858 |
- "fdname": file descriptor name (json-string) |
859 |
|
860 |
Example: |
861 |
|
862 |
-> { "execute": "getfd", "arguments": { "fdname": "fd1" } } |
863 |
<- { "return": {} } |
864 |
|
865 |
EQMP |
866 |
|
867 |
{ |
868 |
.name = "closefd", |
869 |
.args_type = "fdname:s", |
870 |
.params = "closefd name", |
871 |
.help = "close a file descriptor previously passed via SCM rights", |
872 |
.user_print = monitor_user_noop, |
873 |
.mhandler.cmd_new = do_closefd, |
874 |
}, |
875 |
|
876 |
SQMP |
877 |
closefd |
878 |
------- |
879 |
|
880 |
Close a file descriptor previously passed via SCM rights. |
881 |
|
882 |
Arguments: |
883 |
|
884 |
- "fdname": file descriptor name (json-string) |
885 |
|
886 |
Example: |
887 |
|
888 |
-> { "execute": "closefd", "arguments": { "fdname": "fd1" } } |
889 |
<- { "return": {} } |
890 |
|
891 |
EQMP |
892 |
|
893 |
{ |
894 |
.name = "block_passwd", |
895 |
.args_type = "device:B,password:s", |
896 |
.mhandler.cmd_new = qmp_marshal_input_block_passwd, |
897 |
}, |
898 |
|
899 |
SQMP |
900 |
block_passwd |
901 |
------------ |
902 |
|
903 |
Set the password of encrypted block devices. |
904 |
|
905 |
Arguments: |
906 |
|
907 |
- "device": device name (json-string) |
908 |
- "password": password (json-string) |
909 |
|
910 |
Example: |
911 |
|
912 |
-> { "execute": "block_passwd", "arguments": { "device": "ide0-hd0", |
913 |
"password": "12345" } } |
914 |
<- { "return": {} } |
915 |
|
916 |
EQMP |
917 |
|
918 |
{ |
919 |
.name = "block_set_io_throttle", |
920 |
.args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l", |
921 |
.mhandler.cmd_new = qmp_marshal_input_block_set_io_throttle, |
922 |
}, |
923 |
|
924 |
SQMP |
925 |
block_set_io_throttle |
926 |
------------ |
927 |
|
928 |
Change I/O throttle limits for a block drive. |
929 |
|
930 |
Arguments: |
931 |
|
932 |
- "device": device name (json-string) |
933 |
- "bps": total throughput limit in bytes per second(json-int) |
934 |
- "bps_rd": read throughput limit in bytes per second(json-int) |
935 |
- "bps_wr": read throughput limit in bytes per second(json-int) |
936 |
- "iops": total I/O operations per second(json-int) |
937 |
- "iops_rd": read I/O operations per second(json-int) |
938 |
- "iops_wr": write I/O operations per second(json-int) |
939 |
|
940 |
Example: |
941 |
|
942 |
-> { "execute": "block_set_io_throttle", "arguments": { "device": "virtio0", |
943 |
"bps": "1000000", |
944 |
"bps_rd": "0", |
945 |
"bps_wr": "0", |
946 |
"iops": "0", |
947 |
"iops_rd": "0", |
948 |
"iops_wr": "0" } } |
949 |
<- { "return": {} } |
950 |
|
951 |
EQMP |
952 |
|
953 |
{ |
954 |
.name = "set_password", |
955 |
.args_type = "protocol:s,password:s,connected:s?", |
956 |
.mhandler.cmd_new = qmp_marshal_input_set_password, |
957 |
}, |
958 |
|
959 |
SQMP |
960 |
set_password |
961 |
------------ |
962 |
|
963 |
Set the password for vnc/spice protocols. |
964 |
|
965 |
Arguments: |
966 |
|
967 |
- "protocol": protocol name (json-string) |
968 |
- "password": password (json-string) |
969 |
- "connected": [ keep | disconnect | fail ] (josn-string, optional) |
970 |
|
971 |
Example: |
972 |
|
973 |
-> { "execute": "set_password", "arguments": { "protocol": "vnc", |
974 |
"password": "secret" } } |
975 |
<- { "return": {} } |
976 |
|
977 |
EQMP |
978 |
|
979 |
{ |
980 |
.name = "expire_password", |
981 |
.args_type = "protocol:s,time:s", |
982 |
.mhandler.cmd_new = qmp_marshal_input_expire_password, |
983 |
}, |
984 |
|
985 |
SQMP |
986 |
expire_password |
987 |
--------------- |
988 |
|
989 |
Set the password expire time for vnc/spice protocols. |
990 |
|
991 |
Arguments: |
992 |
|
993 |
- "protocol": protocol name (json-string) |
994 |
- "time": [ now | never | +secs | secs ] (json-string) |
995 |
|
996 |
Example: |
997 |
|
998 |
-> { "execute": "expire_password", "arguments": { "protocol": "vnc", |
999 |
"time": "+60" } } |
1000 |
<- { "return": {} } |
1001 |
|
1002 |
EQMP |
1003 |
|
1004 |
{ |
1005 |
.name = "add_client", |
1006 |
.args_type = "protocol:s,fdname:s,skipauth:b?,tls:b?", |
1007 |
.params = "protocol fdname skipauth tls", |
1008 |
.help = "add a graphics client", |
1009 |
.user_print = monitor_user_noop, |
1010 |
.mhandler.cmd_new = add_graphics_client, |
1011 |
}, |
1012 |
|
1013 |
SQMP |
1014 |
add_client |
1015 |
---------- |
1016 |
|
1017 |
Add a graphics client |
1018 |
|
1019 |
Arguments: |
1020 |
|
1021 |
- "protocol": protocol name (json-string) |
1022 |
- "fdname": file descriptor name (json-string) |
1023 |
- "skipauth": whether to skip authentication (json-bool, optional) |
1024 |
- "tls": whether to perform TLS (json-bool, optional) |
1025 |
|
1026 |
Example: |
1027 |
|
1028 |
-> { "execute": "add_client", "arguments": { "protocol": "vnc", |
1029 |
"fdname": "myclient" } } |
1030 |
<- { "return": {} } |
1031 |
|
1032 |
EQMP |
1033 |
{ |
1034 |
.name = "qmp_capabilities", |
1035 |
.args_type = "", |
1036 |
.params = "", |
1037 |
.help = "enable QMP capabilities", |
1038 |
.user_print = monitor_user_noop, |
1039 |
.mhandler.cmd_new = do_qmp_capabilities, |
1040 |
}, |
1041 |
|
1042 |
SQMP |
1043 |
qmp_capabilities |
1044 |
---------------- |
1045 |
|
1046 |
Enable QMP capabilities. |
1047 |
|
1048 |
Arguments: None. |
1049 |
|
1050 |
Example: |
1051 |
|
1052 |
-> { "execute": "qmp_capabilities" } |
1053 |
<- { "return": {} } |
1054 |
|
1055 |
Note: This command must be issued before issuing any other command. |
1056 |
|
1057 |
EQMP |
1058 |
|
1059 |
{ |
1060 |
.name = "human-monitor-command", |
1061 |
.args_type = "command-line:s,cpu-index:i?", |
1062 |
.mhandler.cmd_new = qmp_marshal_input_human_monitor_command, |
1063 |
}, |
1064 |
|
1065 |
SQMP |
1066 |
human-monitor-command |
1067 |
--------------------- |
1068 |
|
1069 |
Execute a Human Monitor command. |
1070 |
|
1071 |
Arguments: |
1072 |
|
1073 |
- command-line: the command name and its arguments, just like the |
1074 |
Human Monitor's shell (json-string) |
1075 |
- cpu-index: select the CPU number to be used by commands which access CPU |
1076 |
data, like 'info registers'. The Monitor selects CPU 0 if this |
1077 |
argument is not provided (json-int, optional) |
1078 |
|
1079 |
Example: |
1080 |
|
1081 |
-> { "execute": "human-monitor-command", "arguments": { "command-line": "info kvm" } } |
1082 |
<- { "return": "kvm support: enabled\r\n" } |
1083 |
|
1084 |
Notes: |
1085 |
|
1086 |
(1) The Human Monitor is NOT an stable interface, this means that command |
1087 |
names, arguments and responses can change or be removed at ANY time. |
1088 |
Applications that rely on long term stability guarantees should NOT |
1089 |
use this command |
1090 |
|
1091 |
(2) Limitations: |
1092 |
|
1093 |
o This command is stateless, this means that commands that depend |
1094 |
on state information (such as getfd) might not work |
1095 |
|
1096 |
o Commands that prompt the user for data (eg. 'cont' when the block |
1097 |
device is encrypted) don't currently work |
1098 |
|
1099 |
3. Query Commands |
1100 |
================= |
1101 |
|
1102 |
HXCOMM Each query command below is inside a SQMP/EQMP section, do NOT change |
1103 |
HXCOMM this! We will possibly move query commands definitions inside those |
1104 |
HXCOMM sections, just like regular commands. |
1105 |
|
1106 |
EQMP |
1107 |
|
1108 |
SQMP |
1109 |
query-version |
1110 |
------------- |
1111 |
|
1112 |
Show QEMU version. |
1113 |
|
1114 |
Return a json-object with the following information: |
1115 |
|
1116 |
- "qemu": A json-object containing three integer values: |
1117 |
- "major": QEMU's major version (json-int) |
1118 |
- "minor": QEMU's minor version (json-int) |
1119 |
- "micro": QEMU's micro version (json-int) |
1120 |
- "package": package's version (json-string) |
1121 |
|
1122 |
Example: |
1123 |
|
1124 |
-> { "execute": "query-version" } |
1125 |
<- { |
1126 |
"return":{ |
1127 |
"qemu":{ |
1128 |
"major":0, |
1129 |
"minor":11, |
1130 |
"micro":5 |
1131 |
}, |
1132 |
"package":"" |
1133 |
} |
1134 |
} |
1135 |
|
1136 |
EQMP |
1137 |
|
1138 |
{ |
1139 |
.name = "query-version", |
1140 |
.args_type = "", |
1141 |
.mhandler.cmd_new = qmp_marshal_input_query_version, |
1142 |
}, |
1143 |
|
1144 |
SQMP |
1145 |
query-commands |
1146 |
-------------- |
1147 |
|
1148 |
List QMP available commands. |
1149 |
|
1150 |
Each command is represented by a json-object, the returned value is a json-array |
1151 |
of all commands. |
1152 |
|
1153 |
Each json-object contain: |
1154 |
|
1155 |
- "name": command's name (json-string) |
1156 |
|
1157 |
Example: |
1158 |
|
1159 |
-> { "execute": "query-commands" } |
1160 |
<- { |
1161 |
"return":[ |
1162 |
{ |
1163 |
"name":"query-balloon" |
1164 |
}, |
1165 |
{ |
1166 |
"name":"system_powerdown" |
1167 |
} |
1168 |
] |
1169 |
} |
1170 |
|
1171 |
Note: This example has been shortened as the real response is too long. |
1172 |
|
1173 |
EQMP |
1174 |
|
1175 |
{ |
1176 |
.name = "query-commands", |
1177 |
.args_type = "", |
1178 |
.mhandler.cmd_new = qmp_marshal_input_query_commands, |
1179 |
}, |
1180 |
|
1181 |
SQMP |
1182 |
query-chardev |
1183 |
------------- |
1184 |
|
1185 |
Each device is represented by a json-object. The returned value is a json-array |
1186 |
of all devices. |
1187 |
|
1188 |
Each json-object contain the following: |
1189 |
|
1190 |
- "label": device's label (json-string) |
1191 |
- "filename": device's file (json-string) |
1192 |
|
1193 |
Example: |
1194 |
|
1195 |
-> { "execute": "query-chardev" } |
1196 |
<- { |
1197 |
"return":[ |
1198 |
{ |
1199 |
"label":"monitor", |
1200 |
"filename":"stdio" |
1201 |
}, |
1202 |
{ |
1203 |
"label":"serial0", |
1204 |
"filename":"vc" |
1205 |
} |
1206 |
] |
1207 |
} |
1208 |
|
1209 |
EQMP |
1210 |
|
1211 |
{ |
1212 |
.name = "query-chardev", |
1213 |
.args_type = "", |
1214 |
.mhandler.cmd_new = qmp_marshal_input_query_chardev, |
1215 |
}, |
1216 |
|
1217 |
SQMP |
1218 |
query-block |
1219 |
----------- |
1220 |
|
1221 |
Show the block devices. |
1222 |
|
1223 |
Each block device information is stored in a json-object and the returned value |
1224 |
is a json-array of all devices. |
1225 |
|
1226 |
Each json-object contain the following: |
1227 |
|
1228 |
- "device": device name (json-string) |
1229 |
- "type": device type (json-string) |
1230 |
- deprecated, retained for backward compatibility |
1231 |
- Possible values: "unknown" |
1232 |
- "removable": true if the device is removable, false otherwise (json-bool) |
1233 |
- "locked": true if the device is locked, false otherwise (json-bool) |
1234 |
- "tray-open": only present if removable, true if the device has a tray, |
1235 |
and it is open (json-bool) |
1236 |
- "inserted": only present if the device is inserted, it is a json-object |
1237 |
containing the following: |
1238 |
- "file": device file name (json-string) |
1239 |
- "ro": true if read-only, false otherwise (json-bool) |
1240 |
- "drv": driver format name (json-string) |
1241 |
- Possible values: "blkdebug", "bochs", "cloop", "cow", "dmg", |
1242 |
"file", "file", "ftp", "ftps", "host_cdrom", |
1243 |
"host_device", "host_floppy", "http", "https", |
1244 |
"nbd", "parallels", "qcow", "qcow2", "raw", |
1245 |
"tftp", "vdi", "vmdk", "vpc", "vvfat" |
1246 |
- "backing_file": backing file name (json-string, optional) |
1247 |
- "encrypted": true if encrypted, false otherwise (json-bool) |
1248 |
- "bps": limit total bytes per second (json-int) |
1249 |
- "bps_rd": limit read bytes per second (json-int) |
1250 |
- "bps_wr": limit write bytes per second (json-int) |
1251 |
- "iops": limit total I/O operations per second (json-int) |
1252 |
- "iops_rd": limit read operations per second (json-int) |
1253 |
- "iops_wr": limit write operations per second (json-int) |
1254 |
|
1255 |
- "io-status": I/O operation status, only present if the device supports it |
1256 |
and the VM is configured to stop on errors. It's always reset |
1257 |
to "ok" when the "cont" command is issued (json_string, optional) |
1258 |
- Possible values: "ok", "failed", "nospace" |
1259 |
|
1260 |
Example: |
1261 |
|
1262 |
-> { "execute": "query-block" } |
1263 |
<- { |
1264 |
"return":[ |
1265 |
{ |
1266 |
"io-status": "ok", |
1267 |
"device":"ide0-hd0", |
1268 |
"locked":false, |
1269 |
"removable":false, |
1270 |
"inserted":{ |
1271 |
"ro":false, |
1272 |
"drv":"qcow2", |
1273 |
"encrypted":false, |
1274 |
"file":"disks/test.img", |
1275 |
"bps":1000000, |
1276 |
"bps_rd":0, |
1277 |
"bps_wr":0, |
1278 |
"iops":1000000, |
1279 |
"iops_rd":0, |
1280 |
"iops_wr":0, |
1281 |
}, |
1282 |
"type":"unknown" |
1283 |
}, |
1284 |
{ |
1285 |
"io-status": "ok", |
1286 |
"device":"ide1-cd0", |
1287 |
"locked":false, |
1288 |
"removable":true, |
1289 |
"type":"unknown" |
1290 |
}, |
1291 |
{ |
1292 |
"device":"floppy0", |
1293 |
"locked":false, |
1294 |
"removable":true, |
1295 |
"type":"unknown" |
1296 |
}, |
1297 |
{ |
1298 |
"device":"sd0", |
1299 |
"locked":false, |
1300 |
"removable":true, |
1301 |
"type":"unknown" |
1302 |
} |
1303 |
] |
1304 |
} |
1305 |
|
1306 |
EQMP |
1307 |
|
1308 |
{ |
1309 |
.name = "query-block", |
1310 |
.args_type = "", |
1311 |
.mhandler.cmd_new = qmp_marshal_input_query_block, |
1312 |
}, |
1313 |
|
1314 |
SQMP |
1315 |
query-blockstats |
1316 |
---------------- |
1317 |
|
1318 |
Show block device statistics. |
1319 |
|
1320 |
Each device statistic information is stored in a json-object and the returned |
1321 |
value is a json-array of all devices. |
1322 |
|
1323 |
Each json-object contain the following: |
1324 |
|
1325 |
- "device": device name (json-string) |
1326 |
- "stats": A json-object with the statistics information, it contains: |
1327 |
- "rd_bytes": bytes read (json-int) |
1328 |
- "wr_bytes": bytes written (json-int) |
1329 |
- "rd_operations": read operations (json-int) |
1330 |
- "wr_operations": write operations (json-int) |
1331 |
- "flush_operations": cache flush operations (json-int) |
1332 |
- "wr_total_time_ns": total time spend on writes in nano-seconds (json-int) |
1333 |
- "rd_total_time_ns": total time spend on reads in nano-seconds (json-int) |
1334 |
- "flush_total_time_ns": total time spend on cache flushes in nano-seconds (json-int) |
1335 |
- "wr_highest_offset": Highest offset of a sector written since the |
1336 |
BlockDriverState has been opened (json-int) |
1337 |
- "parent": Contains recursively the statistics of the underlying |
1338 |
protocol (e.g. the host file for a qcow2 image). If there is |
1339 |
no underlying protocol, this field is omitted |
1340 |
(json-object, optional) |
1341 |
|
1342 |
Example: |
1343 |
|
1344 |
-> { "execute": "query-blockstats" } |
1345 |
<- { |
1346 |
"return":[ |
1347 |
{ |
1348 |
"device":"ide0-hd0", |
1349 |
"parent":{ |
1350 |
"stats":{ |
1351 |
"wr_highest_offset":3686448128, |
1352 |
"wr_bytes":9786368, |
1353 |
"wr_operations":751, |
1354 |
"rd_bytes":122567168, |
1355 |
"rd_operations":36772 |
1356 |
"wr_total_times_ns":313253456 |
1357 |
"rd_total_times_ns":3465673657 |
1358 |
"flush_total_times_ns":49653 |
1359 |
"flush_operations":61, |
1360 |
} |
1361 |
}, |
1362 |
"stats":{ |
1363 |
"wr_highest_offset":2821110784, |
1364 |
"wr_bytes":9786368, |
1365 |
"wr_operations":692, |
1366 |
"rd_bytes":122739200, |
1367 |
"rd_operations":36604 |
1368 |
"flush_operations":51, |
1369 |
"wr_total_times_ns":313253456 |
1370 |
"rd_total_times_ns":3465673657 |
1371 |
"flush_total_times_ns":49653 |
1372 |
} |
1373 |
}, |
1374 |
{ |
1375 |
"device":"ide1-cd0", |
1376 |
"stats":{ |
1377 |
"wr_highest_offset":0, |
1378 |
"wr_bytes":0, |
1379 |
"wr_operations":0, |
1380 |
"rd_bytes":0, |
1381 |
"rd_operations":0 |
1382 |
"flush_operations":0, |
1383 |
"wr_total_times_ns":0 |
1384 |
"rd_total_times_ns":0 |
1385 |
"flush_total_times_ns":0 |
1386 |
} |
1387 |
}, |
1388 |
{ |
1389 |
"device":"floppy0", |
1390 |
"stats":{ |
1391 |
"wr_highest_offset":0, |
1392 |
"wr_bytes":0, |
1393 |
"wr_operations":0, |
1394 |
"rd_bytes":0, |
1395 |
"rd_operations":0 |
1396 |
"flush_operations":0, |
1397 |
"wr_total_times_ns":0 |
1398 |
"rd_total_times_ns":0 |
1399 |
"flush_total_times_ns":0 |
1400 |
} |
1401 |
}, |
1402 |
{ |
1403 |
"device":"sd0", |
1404 |
"stats":{ |
1405 |
"wr_highest_offset":0, |
1406 |
"wr_bytes":0, |
1407 |
"wr_operations":0, |
1408 |
"rd_bytes":0, |
1409 |
"rd_operations":0 |
1410 |
"flush_operations":0, |
1411 |
"wr_total_times_ns":0 |
1412 |
"rd_total_times_ns":0 |
1413 |
"flush_total_times_ns":0 |
1414 |
} |
1415 |
} |
1416 |
] |
1417 |
} |
1418 |
|
1419 |
EQMP |
1420 |
|
1421 |
{ |
1422 |
.name = "query-blockstats", |
1423 |
.args_type = "", |
1424 |
.mhandler.cmd_new = qmp_marshal_input_query_blockstats, |
1425 |
}, |
1426 |
|
1427 |
SQMP |
1428 |
query-cpus |
1429 |
---------- |
1430 |
|
1431 |
Show CPU information. |
1432 |
|
1433 |
Return a json-array. Each CPU is represented by a json-object, which contains: |
1434 |
|
1435 |
- "CPU": CPU index (json-int) |
1436 |
- "current": true if this is the current CPU, false otherwise (json-bool) |
1437 |
- "halted": true if the cpu is halted, false otherwise (json-bool) |
1438 |
- Current program counter. The key's name depends on the architecture: |
1439 |
"pc": i386/x86_64 (json-int) |
1440 |
"nip": PPC (json-int) |
1441 |
"pc" and "npc": sparc (json-int) |
1442 |
"PC": mips (json-int) |
1443 |
- "thread_id": ID of the underlying host thread (json-int) |
1444 |
|
1445 |
Example: |
1446 |
|
1447 |
-> { "execute": "query-cpus" } |
1448 |
<- { |
1449 |
"return":[ |
1450 |
{ |
1451 |
"CPU":0, |
1452 |
"current":true, |
1453 |
"halted":false, |
1454 |
"pc":3227107138 |
1455 |
"thread_id":3134 |
1456 |
}, |
1457 |
{ |
1458 |
"CPU":1, |
1459 |
"current":false, |
1460 |
"halted":true, |
1461 |
"pc":7108165 |
1462 |
"thread_id":3135 |
1463 |
} |
1464 |
] |
1465 |
} |
1466 |
|
1467 |
EQMP |
1468 |
|
1469 |
{ |
1470 |
.name = "query-cpus", |
1471 |
.args_type = "", |
1472 |
.mhandler.cmd_new = qmp_marshal_input_query_cpus, |
1473 |
}, |
1474 |
|
1475 |
SQMP |
1476 |
query-pci |
1477 |
--------- |
1478 |
|
1479 |
PCI buses and devices information. |
1480 |
|
1481 |
The returned value is a json-array of all buses. Each bus is represented by |
1482 |
a json-object, which has a key with a json-array of all PCI devices attached |
1483 |
to it. Each device is represented by a json-object. |
1484 |
|
1485 |
The bus json-object contains the following: |
1486 |
|
1487 |
- "bus": bus number (json-int) |
1488 |
- "devices": a json-array of json-objects, each json-object represents a |
1489 |
PCI device |
1490 |
|
1491 |
The PCI device json-object contains the following: |
1492 |
|
1493 |
- "bus": identical to the parent's bus number (json-int) |
1494 |
- "slot": slot number (json-int) |
1495 |
- "function": function number (json-int) |
1496 |
- "class_info": a json-object containing: |
1497 |
- "desc": device class description (json-string, optional) |
1498 |
- "class": device class number (json-int) |
1499 |
- "id": a json-object containing: |
1500 |
- "device": device ID (json-int) |
1501 |
- "vendor": vendor ID (json-int) |
1502 |
- "irq": device's IRQ if assigned (json-int, optional) |
1503 |
- "qdev_id": qdev id string (json-string) |
1504 |
- "pci_bridge": It's a json-object, only present if this device is a |
1505 |
PCI bridge, contains: |
1506 |
- "bus": bus number (json-int) |
1507 |
- "secondary": secondary bus number (json-int) |
1508 |
- "subordinate": subordinate bus number (json-int) |
1509 |
- "io_range": I/O memory range information, a json-object with the |
1510 |
following members: |
1511 |
- "base": base address, in bytes (json-int) |
1512 |
- "limit": limit address, in bytes (json-int) |
1513 |
- "memory_range": memory range information, a json-object with the |
1514 |
following members: |
1515 |
- "base": base address, in bytes (json-int) |
1516 |
- "limit": limit address, in bytes (json-int) |
1517 |
- "prefetchable_range": Prefetchable memory range information, a |
1518 |
json-object with the following members: |
1519 |
- "base": base address, in bytes (json-int) |
1520 |
- "limit": limit address, in bytes (json-int) |
1521 |
- "devices": a json-array of PCI devices if there's any attached, each |
1522 |
each element is represented by a json-object, which contains |
1523 |
the same members of the 'PCI device json-object' described |
1524 |
above (optional) |
1525 |
- "regions": a json-array of json-objects, each json-object represents a |
1526 |
memory region of this device |
1527 |
|
1528 |
The memory range json-object contains the following: |
1529 |
|
1530 |
- "base": base memory address (json-int) |
1531 |
- "limit": limit value (json-int) |
1532 |
|
1533 |
The region json-object can be an I/O region or a memory region, an I/O region |
1534 |
json-object contains the following: |
1535 |
|
1536 |
- "type": "io" (json-string, fixed) |
1537 |
- "bar": BAR number (json-int) |
1538 |
- "address": memory address (json-int) |
1539 |
- "size": memory size (json-int) |
1540 |
|
1541 |
A memory region json-object contains the following: |
1542 |
|
1543 |
- "type": "memory" (json-string, fixed) |
1544 |
- "bar": BAR number (json-int) |
1545 |
- "address": memory address (json-int) |
1546 |
- "size": memory size (json-int) |
1547 |
- "mem_type_64": true or false (json-bool) |
1548 |
- "prefetch": true or false (json-bool) |
1549 |
|
1550 |
Example: |
1551 |
|
1552 |
-> { "execute": "query-pci" } |
1553 |
<- { |
1554 |
"return":[ |
1555 |
{ |
1556 |
"bus":0, |
1557 |
"devices":[ |
1558 |
{ |
1559 |
"bus":0, |
1560 |
"qdev_id":"", |
1561 |
"slot":0, |
1562 |
"class_info":{ |
1563 |
"class":1536, |
1564 |
"desc":"Host bridge" |
1565 |
}, |
1566 |
"id":{ |
1567 |
"device":32902, |
1568 |
"vendor":4663 |
1569 |
}, |
1570 |
"function":0, |
1571 |
"regions":[ |
1572 |
|
1573 |
] |
1574 |
}, |
1575 |
{ |
1576 |
"bus":0, |
1577 |
"qdev_id":"", |
1578 |
"slot":1, |
1579 |
"class_info":{ |
1580 |
"class":1537, |
1581 |
"desc":"ISA bridge" |
1582 |
}, |
1583 |
"id":{ |
1584 |
"device":32902, |
1585 |
"vendor":28672 |
1586 |
}, |
1587 |
"function":0, |
1588 |
"regions":[ |
1589 |
|
1590 |
] |
1591 |
}, |
1592 |
{ |
1593 |
"bus":0, |
1594 |
"qdev_id":"", |
1595 |
"slot":1, |
1596 |
"class_info":{ |
1597 |
"class":257, |
1598 |
"desc":"IDE controller" |
1599 |
}, |
1600 |
"id":{ |
1601 |
"device":32902, |
1602 |
"vendor":28688 |
1603 |
}, |
1604 |
"function":1, |
1605 |
"regions":[ |
1606 |
{ |
1607 |
"bar":4, |
1608 |
"size":16, |
1609 |
"address":49152, |
1610 |
"type":"io" |
1611 |
} |
1612 |
] |
1613 |
}, |
1614 |
{ |
1615 |
"bus":0, |
1616 |
"qdev_id":"", |
1617 |
"slot":2, |
1618 |
"class_info":{ |
1619 |
"class":768, |
1620 |
"desc":"VGA controller" |
1621 |
}, |
1622 |
"id":{ |
1623 |
"device":4115, |
1624 |
"vendor":184 |
1625 |
}, |
1626 |
"function":0, |
1627 |
"regions":[ |
1628 |
{ |
1629 |
"prefetch":true, |
1630 |
"mem_type_64":false, |
1631 |
"bar":0, |
1632 |
"size":33554432, |
1633 |
"address":4026531840, |
1634 |
"type":"memory" |
1635 |
}, |
1636 |
{ |
1637 |
"prefetch":false, |
1638 |
"mem_type_64":false, |
1639 |
"bar":1, |
1640 |
"size":4096, |
1641 |
"address":4060086272, |
1642 |
"type":"memory" |
1643 |
}, |
1644 |
{ |
1645 |
"prefetch":false, |
1646 |
"mem_type_64":false, |
1647 |
"bar":6, |
1648 |
"size":65536, |
1649 |
"address":-1, |
1650 |
"type":"memory" |
1651 |
} |
1652 |
] |
1653 |
}, |
1654 |
{ |
1655 |
"bus":0, |
1656 |
"qdev_id":"", |
1657 |
"irq":11, |
1658 |
"slot":4, |
1659 |
"class_info":{ |
1660 |
"class":1280, |
1661 |
"desc":"RAM controller" |
1662 |
}, |
1663 |
"id":{ |
1664 |
"device":6900, |
1665 |
"vendor":4098 |
1666 |
}, |
1667 |
"function":0, |
1668 |
"regions":[ |
1669 |
{ |
1670 |
"bar":0, |
1671 |
"size":32, |
1672 |
"address":49280, |
1673 |
"type":"io" |
1674 |
} |
1675 |
] |
1676 |
} |
1677 |
] |
1678 |
} |
1679 |
] |
1680 |
} |
1681 |
|
1682 |
Note: This example has been shortened as the real response is too long. |
1683 |
|
1684 |
EQMP |
1685 |
|
1686 |
{ |
1687 |
.name = "query-pci", |
1688 |
.args_type = "", |
1689 |
.mhandler.cmd_new = qmp_marshal_input_query_pci, |
1690 |
}, |
1691 |
|
1692 |
SQMP |
1693 |
query-kvm |
1694 |
--------- |
1695 |
|
1696 |
Show KVM information. |
1697 |
|
1698 |
Return a json-object with the following information: |
1699 |
|
1700 |
- "enabled": true if KVM support is enabled, false otherwise (json-bool) |
1701 |
- "present": true if QEMU has KVM support, false otherwise (json-bool) |
1702 |
|
1703 |
Example: |
1704 |
|
1705 |
-> { "execute": "query-kvm" } |
1706 |
<- { "return": { "enabled": true, "present": true } } |
1707 |
|
1708 |
EQMP |
1709 |
|
1710 |
{ |
1711 |
.name = "query-kvm", |
1712 |
.args_type = "", |
1713 |
.mhandler.cmd_new = qmp_marshal_input_query_kvm, |
1714 |
}, |
1715 |
|
1716 |
SQMP |
1717 |
query-status |
1718 |
------------ |
1719 |
|
1720 |
Return a json-object with the following information: |
1721 |
|
1722 |
- "running": true if the VM is running, or false if it is paused (json-bool) |
1723 |
- "singlestep": true if the VM is in single step mode, |
1724 |
false otherwise (json-bool) |
1725 |
- "status": one of the following values (json-string) |
1726 |
"debug" - QEMU is running on a debugger |
1727 |
"inmigrate" - guest is paused waiting for an incoming migration |
1728 |
"internal-error" - An internal error that prevents further guest |
1729 |
execution has occurred |
1730 |
"io-error" - the last IOP has failed and the device is configured |
1731 |
to pause on I/O errors |
1732 |
"paused" - guest has been paused via the 'stop' command |
1733 |
"postmigrate" - guest is paused following a successful 'migrate' |
1734 |
"prelaunch" - QEMU was started with -S and guest has not started |
1735 |
"finish-migrate" - guest is paused to finish the migration process |
1736 |
"restore-vm" - guest is paused to restore VM state |
1737 |
"running" - guest is actively running |
1738 |
"save-vm" - guest is paused to save the VM state |
1739 |
"shutdown" - guest is shut down (and -no-shutdown is in use) |
1740 |
"watchdog" - the watchdog action is configured to pause and |
1741 |
has been triggered |
1742 |
|
1743 |
Example: |
1744 |
|
1745 |
-> { "execute": "query-status" } |
1746 |
<- { "return": { "running": true, "singlestep": false, "status": "running" } } |
1747 |
|
1748 |
EQMP |
1749 |
|
1750 |
{ |
1751 |
.name = "query-status", |
1752 |
.args_type = "", |
1753 |
.mhandler.cmd_new = qmp_marshal_input_query_status, |
1754 |
}, |
1755 |
|
1756 |
SQMP |
1757 |
query-mice |
1758 |
---------- |
1759 |
|
1760 |
Show VM mice information. |
1761 |
|
1762 |
Each mouse is represented by a json-object, the returned value is a json-array |
1763 |
of all mice. |
1764 |
|
1765 |
The mouse json-object contains the following: |
1766 |
|
1767 |
- "name": mouse's name (json-string) |
1768 |
- "index": mouse's index (json-int) |
1769 |
- "current": true if this mouse is receiving events, false otherwise (json-bool) |
1770 |
- "absolute": true if the mouse generates absolute input events (json-bool) |
1771 |
|
1772 |
Example: |
1773 |
|
1774 |
-> { "execute": "query-mice" } |
1775 |
<- { |
1776 |
"return":[ |
1777 |
{ |
1778 |
"name":"QEMU Microsoft Mouse", |
1779 |
"index":0, |
1780 |
"current":false, |
1781 |
"absolute":false |
1782 |
}, |
1783 |
{ |
1784 |
"name":"QEMU PS/2 Mouse", |
1785 |
"index":1, |
1786 |
"current":true, |
1787 |
"absolute":true |
1788 |
} |
1789 |
] |
1790 |
} |
1791 |
|
1792 |
EQMP |
1793 |
|
1794 |
{ |
1795 |
.name = "query-mice", |
1796 |
.args_type = "", |
1797 |
.mhandler.cmd_new = qmp_marshal_input_query_mice, |
1798 |
}, |
1799 |
|
1800 |
SQMP |
1801 |
query-vnc |
1802 |
--------- |
1803 |
|
1804 |
Show VNC server information. |
1805 |
|
1806 |
Return a json-object with server information. Connected clients are returned |
1807 |
as a json-array of json-objects. |
1808 |
|
1809 |
The main json-object contains the following: |
1810 |
|
1811 |
- "enabled": true or false (json-bool) |
1812 |
- "host": server's IP address (json-string) |
1813 |
- "family": address family (json-string) |
1814 |
- Possible values: "ipv4", "ipv6", "unix", "unknown" |
1815 |
- "service": server's port number (json-string) |
1816 |
- "auth": authentication method (json-string) |
1817 |
- Possible values: "invalid", "none", "ra2", "ra2ne", "sasl", "tight", |
1818 |
"tls", "ultra", "unknown", "vencrypt", "vencrypt", |
1819 |
"vencrypt+plain", "vencrypt+tls+none", |
1820 |
"vencrypt+tls+plain", "vencrypt+tls+sasl", |
1821 |
"vencrypt+tls+vnc", "vencrypt+x509+none", |
1822 |
"vencrypt+x509+plain", "vencrypt+x509+sasl", |
1823 |
"vencrypt+x509+vnc", "vnc" |
1824 |
- "clients": a json-array of all connected clients |
1825 |
|
1826 |
Clients are described by a json-object, each one contain the following: |
1827 |
|
1828 |
- "host": client's IP address (json-string) |
1829 |
- "family": address family (json-string) |
1830 |
- Possible values: "ipv4", "ipv6", "unix", "unknown" |
1831 |
- "service": client's port number (json-string) |
1832 |
- "x509_dname": TLS dname (json-string, optional) |
1833 |
- "sasl_username": SASL username (json-string, optional) |
1834 |
|
1835 |
Example: |
1836 |
|
1837 |
-> { "execute": "query-vnc" } |
1838 |
<- { |
1839 |
"return":{ |
1840 |
"enabled":true, |
1841 |
"host":"0.0.0.0", |
1842 |
"service":"50402", |
1843 |
"auth":"vnc", |
1844 |
"family":"ipv4", |
1845 |
"clients":[ |
1846 |
{ |
1847 |
"host":"127.0.0.1", |
1848 |
"service":"50401", |
1849 |
"family":"ipv4" |
1850 |
} |
1851 |
] |
1852 |
} |
1853 |
} |
1854 |
|
1855 |
EQMP |
1856 |
|
1857 |
{ |
1858 |
.name = "query-vnc", |
1859 |
.args_type = "", |
1860 |
.mhandler.cmd_new = qmp_marshal_input_query_vnc, |
1861 |
}, |
1862 |
|
1863 |
SQMP |
1864 |
query-spice |
1865 |
----------- |
1866 |
|
1867 |
Show SPICE server information. |
1868 |
|
1869 |
Return a json-object with server information. Connected clients are returned |
1870 |
as a json-array of json-objects. |
1871 |
|
1872 |
The main json-object contains the following: |
1873 |
|
1874 |
- "enabled": true or false (json-bool) |
1875 |
- "host": server's IP address (json-string) |
1876 |
- "port": server's port number (json-int, optional) |
1877 |
- "tls-port": server's port number (json-int, optional) |
1878 |
- "auth": authentication method (json-string) |
1879 |
- Possible values: "none", "spice" |
1880 |
- "channels": a json-array of all active channels clients |
1881 |
|
1882 |
Channels are described by a json-object, each one contain the following: |
1883 |
|
1884 |
- "host": client's IP address (json-string) |
1885 |
- "family": address family (json-string) |
1886 |
- Possible values: "ipv4", "ipv6", "unix", "unknown" |
1887 |
- "port": client's port number (json-string) |
1888 |
- "connection-id": spice connection id. All channels with the same id |
1889 |
belong to the same spice session (json-int) |
1890 |
- "channel-type": channel type. "1" is the main control channel, filter for |
1891 |
this one if you want track spice sessions only (json-int) |
1892 |
- "channel-id": channel id. Usually "0", might be different needed when |
1893 |
multiple channels of the same type exist, such as multiple |
1894 |
display channels in a multihead setup (json-int) |
1895 |
- "tls": whevener the channel is encrypted (json-bool) |
1896 |
|
1897 |
Example: |
1898 |
|
1899 |
-> { "execute": "query-spice" } |
1900 |
<- { |
1901 |
"return": { |
1902 |
"enabled": true, |
1903 |
"auth": "spice", |
1904 |
"port": 5920, |
1905 |
"tls-port": 5921, |
1906 |
"host": "0.0.0.0", |
1907 |
"channels": [ |
1908 |
{ |
1909 |
"port": "54924", |
1910 |
"family": "ipv4", |
1911 |
"channel-type": 1, |
1912 |
"connection-id": 1804289383, |
1913 |
"host": "127.0.0.1", |
1914 |
"channel-id": 0, |
1915 |
"tls": true |
1916 |
}, |
1917 |
{ |
1918 |
"port": "36710", |
1919 |
"family": "ipv4", |
1920 |
"channel-type": 4, |
1921 |
"connection-id": 1804289383, |
1922 |
"host": "127.0.0.1", |
1923 |
"channel-id": 0, |
1924 |
"tls": false |
1925 |
}, |
1926 |
[ ... more channels follow ... ] |
1927 |
] |
1928 |
} |
1929 |
} |
1930 |
|
1931 |
EQMP |
1932 |
|
1933 |
#if defined(CONFIG_SPICE) |
1934 |
{ |
1935 |
.name = "query-spice", |
1936 |
.args_type = "", |
1937 |
.mhandler.cmd_new = qmp_marshal_input_query_spice, |
1938 |
}, |
1939 |
#endif |
1940 |
|
1941 |
SQMP |
1942 |
query-name |
1943 |
---------- |
1944 |
|
1945 |
Show VM name. |
1946 |
|
1947 |
Return a json-object with the following information: |
1948 |
|
1949 |
- "name": VM's name (json-string, optional) |
1950 |
|
1951 |
Example: |
1952 |
|
1953 |
-> { "execute": "query-name" } |
1954 |
<- { "return": { "name": "qemu-name" } } |
1955 |
|
1956 |
EQMP |
1957 |
|
1958 |
{ |
1959 |
.name = "query-name", |
1960 |
.args_type = "", |
1961 |
.mhandler.cmd_new = qmp_marshal_input_query_name, |
1962 |
}, |
1963 |
|
1964 |
SQMP |
1965 |
query-uuid |
1966 |
---------- |
1967 |
|
1968 |
Show VM UUID. |
1969 |
|
1970 |
Return a json-object with the following information: |
1971 |
|
1972 |
- "UUID": Universally Unique Identifier (json-string) |
1973 |
|
1974 |
Example: |
1975 |
|
1976 |
-> { "execute": "query-uuid" } |
1977 |
<- { "return": { "UUID": "550e8400-e29b-41d4-a716-446655440000" } } |
1978 |
|
1979 |
EQMP |
1980 |
|
1981 |
{ |
1982 |
.name = "query-uuid", |
1983 |
.args_type = "", |
1984 |
.mhandler.cmd_new = qmp_marshal_input_query_uuid, |
1985 |
}, |
1986 |
|
1987 |
SQMP |
1988 |
query-migrate |
1989 |
------------- |
1990 |
|
1991 |
Migration status. |
1992 |
|
1993 |
Return a json-object. If migration is active there will be another json-object |
1994 |
with RAM migration status and if block migration is active another one with |
1995 |
block migration status. |
1996 |
|
1997 |
The main json-object contains the following: |
1998 |
|
1999 |
- "status": migration status (json-string) |
2000 |
- Possible values: "active", "completed", "failed", "cancelled" |
2001 |
- "ram": only present if "status" is "active", it is a json-object with the |
2002 |
following RAM information (in bytes): |
2003 |
- "transferred": amount transferred (json-int) |
2004 |
- "remaining": amount remaining (json-int) |
2005 |
- "total": total (json-int) |
2006 |
- "disk": only present if "status" is "active" and it is a block migration, |
2007 |
it is a json-object with the following disk information (in bytes): |
2008 |
- "transferred": amount transferred (json-int) |
2009 |
- "remaining": amount remaining (json-int) |
2010 |
- "total": total (json-int) |
2011 |
|
2012 |
Examples: |
2013 |
|
2014 |
1. Before the first migration |
2015 |
|
2016 |
-> { "execute": "query-migrate" } |
2017 |
<- { "return": {} } |
2018 |
|
2019 |
2. Migration is done and has succeeded |
2020 |
|
2021 |
-> { "execute": "query-migrate" } |
2022 |
<- { "return": { "status": "completed" } } |
2023 |
|
2024 |
3. Migration is done and has failed |
2025 |
|
2026 |
-> { "execute": "query-migrate" } |
2027 |
<- { "return": { "status": "failed" } } |
2028 |
|
2029 |
4. Migration is being performed and is not a block migration: |
2030 |
|
2031 |
-> { "execute": "query-migrate" } |
2032 |
<- { |
2033 |
"return":{ |
2034 |
"status":"active", |
2035 |
"ram":{ |
2036 |
"transferred":123, |
2037 |
"remaining":123, |
2038 |
"total":246 |
2039 |
} |
2040 |
} |
2041 |
} |
2042 |
|
2043 |
5. Migration is being performed and is a block migration: |
2044 |
|
2045 |
-> { "execute": "query-migrate" } |
2046 |
<- { |
2047 |
"return":{ |
2048 |
"status":"active", |
2049 |
"ram":{ |
2050 |
"total":1057024, |
2051 |
"remaining":1053304, |
2052 |
"transferred":3720 |
2053 |
}, |
2054 |
"disk":{ |
2055 |
"total":20971520, |
2056 |
"remaining":20880384, |
2057 |
"transferred":91136 |
2058 |
} |
2059 |
} |
2060 |
} |
2061 |
|
2062 |
EQMP |
2063 |
|
2064 |
{ |
2065 |
.name = "query-migrate", |
2066 |
.args_type = "", |
2067 |
.mhandler.cmd_new = qmp_marshal_input_query_migrate, |
2068 |
}, |
2069 |
|
2070 |
SQMP |
2071 |
query-balloon |
2072 |
------------- |
2073 |
|
2074 |
Show balloon information. |
2075 |
|
2076 |
Make an asynchronous request for balloon info. When the request completes a |
2077 |
json-object will be returned containing the following data: |
2078 |
|
2079 |
- "actual": current balloon value in bytes (json-int) |
2080 |
- "mem_swapped_in": Amount of memory swapped in bytes (json-int, optional) |
2081 |
- "mem_swapped_out": Amount of memory swapped out in bytes (json-int, optional) |
2082 |
- "major_page_faults": Number of major faults (json-int, optional) |
2083 |
- "minor_page_faults": Number of minor faults (json-int, optional) |
2084 |
- "free_mem": Total amount of free and unused memory in |
2085 |
bytes (json-int, optional) |
2086 |
- "total_mem": Total amount of available memory in bytes (json-int, optional) |
2087 |
|
2088 |
Example: |
2089 |
|
2090 |
-> { "execute": "query-balloon" } |
2091 |
<- { |
2092 |
"return":{ |
2093 |
"actual":1073741824, |
2094 |
"mem_swapped_in":0, |
2095 |
"mem_swapped_out":0, |
2096 |
"major_page_faults":142, |
2097 |
"minor_page_faults":239245, |
2098 |
"free_mem":1014185984, |
2099 |
"total_mem":1044668416 |
2100 |
} |
2101 |
} |
2102 |
|
2103 |
EQMP |
2104 |
|
2105 |
{ |
2106 |
.name = "query-balloon", |
2107 |
.args_type = "", |
2108 |
.mhandler.cmd_new = qmp_marshal_input_query_balloon, |
2109 |
}, |
2110 |
|
2111 |
{ |
2112 |
.name = "query-block-jobs", |
2113 |
.args_type = "", |
2114 |
.mhandler.cmd_new = qmp_marshal_input_query_block_jobs, |
2115 |
}, |
2116 |
|
2117 |
{ |
2118 |
.name = "qom-list", |
2119 |
.args_type = "path:s", |
2120 |
.mhandler.cmd_new = qmp_marshal_input_qom_list, |
2121 |
}, |
2122 |
|
2123 |
{ |
2124 |
.name = "qom-set", |
2125 |
.args_type = "path:s,property:s,value:q", |
2126 |
.mhandler.cmd_new = qmp_qom_set, |
2127 |
}, |
2128 |
|
2129 |
{ |
2130 |
.name = "qom-get", |
2131 |
.args_type = "path:s,property:s", |
2132 |
.mhandler.cmd_new = qmp_qom_get, |
2133 |
}, |
2134 |
|
2135 |
{ |
2136 |
.name = "change-vnc-password", |
2137 |
.args_type = "password:s", |
2138 |
.mhandler.cmd_new = qmp_marshal_input_change_vnc_password, |
2139 |
}, |
2140 |
{ |
2141 |
.name = "qom-list-types", |
2142 |
.args_type = "implements:s?,abstract:b?", |
2143 |
.mhandler.cmd_new = qmp_marshal_input_qom_list_types, |
2144 |
}, |