qemu-iotests: make assert_no_active_block_jobs() common
[qemu/ar7.git] / hmp-commands.hx
blob9cea4151b9cdb929e4235a255948ff61698c965b
1 HXCOMM Use DEFHEADING() to define headings in both help text and texi
2 HXCOMM Text between STEXI and ETEXI are copied to texi version and
3 HXCOMM discarded from C version
4 HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
5 HXCOMM monitor commands
6 HXCOMM HXCOMM can be used for comments, discarded from both texi and C
8 STEXI
9 @table @option
10 ETEXI
13 .name = "help|?",
14 .args_type = "name:s?",
15 .params = "[cmd]",
16 .help = "show the help",
17 .mhandler.cmd = do_help_cmd,
20 STEXI
21 @item help or ? [@var{cmd}]
22 @findex help
23 Show the help for all commands or just for command @var{cmd}.
24 ETEXI
27 .name = "commit",
28 .args_type = "device:B",
29 .params = "device|all",
30 .help = "commit changes to the disk images (if -snapshot is used) or backing files",
31 .mhandler.cmd = do_commit,
34 STEXI
35 @item commit
36 @findex commit
37 Commit changes to the disk images (if -snapshot is used) or backing files.
38 ETEXI
41 .name = "q|quit",
42 .args_type = "",
43 .params = "",
44 .help = "quit the emulator",
45 .user_print = monitor_user_noop,
46 .mhandler.cmd = hmp_quit,
49 STEXI
50 @item q or quit
51 @findex quit
52 Quit the emulator.
53 ETEXI
56 .name = "block_resize",
57 .args_type = "device:B,size:o",
58 .params = "device size",
59 .help = "resize a block image",
60 .mhandler.cmd = hmp_block_resize,
63 STEXI
64 @item block_resize
65 @findex block_resize
66 Resize a block image while a guest is running. Usually requires guest
67 action to see the updated size. Resize to a lower size is supported,
68 but should be used with extreme caution. Note that this command only
69 resizes image files, it can not resize block devices like LVM volumes.
70 ETEXI
73 .name = "block_stream",
74 .args_type = "device:B,speed:o?,base:s?",
75 .params = "device [speed [base]]",
76 .help = "copy data from a backing file into a block device",
77 .mhandler.cmd = hmp_block_stream,
80 STEXI
81 @item block_stream
82 @findex block_stream
83 Copy data from a backing file into a block device.
84 ETEXI
87 .name = "block_job_set_speed",
88 .args_type = "device:B,speed:o",
89 .params = "device speed",
90 .help = "set maximum speed for a background block operation",
91 .mhandler.cmd = hmp_block_job_set_speed,
94 STEXI
95 @item block_job_set_speed
96 @findex block_job_set_speed
97 Set maximum speed for a background block operation.
98 ETEXI
101 .name = "block_job_cancel",
102 .args_type = "force:-f,device:B",
103 .params = "[-f] device",
104 .help = "stop an active background block operation (use -f"
105 "\n\t\t\t if the operation is currently paused)",
106 .mhandler.cmd = hmp_block_job_cancel,
109 STEXI
110 @item block_job_cancel
111 @findex block_job_cancel
112 Stop an active background block operation (streaming, mirroring).
113 ETEXI
116 .name = "block_job_complete",
117 .args_type = "device:B",
118 .params = "device",
119 .help = "stop an active background block operation",
120 .mhandler.cmd = hmp_block_job_complete,
123 STEXI
124 @item block_job_complete
125 @findex block_job_complete
126 Manually trigger completion of an active background block operation.
127 For mirroring, this will switch the device to the destination path.
128 ETEXI
131 .name = "block_job_pause",
132 .args_type = "device:B",
133 .params = "device",
134 .help = "pause an active background block operation",
135 .mhandler.cmd = hmp_block_job_pause,
138 STEXI
139 @item block_job_pause
140 @findex block_job_pause
141 Pause an active block streaming operation.
142 ETEXI
145 .name = "block_job_resume",
146 .args_type = "device:B",
147 .params = "device",
148 .help = "resume a paused background block operation",
149 .mhandler.cmd = hmp_block_job_resume,
152 STEXI
153 @item block_job_resume
154 @findex block_job_resume
155 Resume a paused block streaming operation.
156 ETEXI
159 .name = "eject",
160 .args_type = "force:-f,device:B",
161 .params = "[-f] device",
162 .help = "eject a removable medium (use -f to force it)",
163 .mhandler.cmd = hmp_eject,
166 STEXI
167 @item eject [-f] @var{device}
168 @findex eject
169 Eject a removable medium (use -f to force it).
170 ETEXI
173 .name = "drive_del",
174 .args_type = "id:s",
175 .params = "device",
176 .help = "remove host block device",
177 .user_print = monitor_user_noop,
178 .mhandler.cmd_new = do_drive_del,
181 STEXI
182 @item drive_del @var{device}
183 @findex drive_del
184 Remove host block device. The result is that guest generated IO is no longer
185 submitted against the host device underlying the disk. Once a drive has
186 been deleted, the QEMU Block layer returns -EIO which results in IO
187 errors in the guest for applications that are reading/writing to the device.
188 ETEXI
191 .name = "change",
192 .args_type = "device:B,target:F,arg:s?",
193 .params = "device filename [format]",
194 .help = "change a removable medium, optional format",
195 .mhandler.cmd = hmp_change,
198 STEXI
199 @item change @var{device} @var{setting}
200 @findex change
202 Change the configuration of a device.
204 @table @option
205 @item change @var{diskdevice} @var{filename} [@var{format}]
206 Change the medium for a removable disk device to point to @var{filename}. eg
208 @example
209 (qemu) change ide1-cd0 /path/to/some.iso
210 @end example
212 @var{format} is optional.
214 @item change vnc @var{display},@var{options}
215 Change the configuration of the VNC server. The valid syntax for @var{display}
216 and @var{options} are described at @ref{sec_invocation}. eg
218 @example
219 (qemu) change vnc localhost:1
220 @end example
222 @item change vnc password [@var{password}]
224 Change the password associated with the VNC server. If the new password is not
225 supplied, the monitor will prompt for it to be entered. VNC passwords are only
226 significant up to 8 letters. eg
228 @example
229 (qemu) change vnc password
230 Password: ********
231 @end example
233 @end table
234 ETEXI
237 .name = "screendump",
238 .args_type = "filename:F",
239 .params = "filename",
240 .help = "save screen into PPM image 'filename'",
241 .mhandler.cmd = hmp_screen_dump,
244 STEXI
245 @item screendump @var{filename}
246 @findex screendump
247 Save screen into PPM image @var{filename}.
248 ETEXI
251 .name = "logfile",
252 .args_type = "filename:F",
253 .params = "filename",
254 .help = "output logs to 'filename'",
255 .mhandler.cmd = do_logfile,
258 STEXI
259 @item logfile @var{filename}
260 @findex logfile
261 Output logs to @var{filename}.
262 ETEXI
265 .name = "trace-event",
266 .args_type = "name:s,option:b",
267 .params = "name on|off",
268 .help = "changes status of a specific trace event",
269 .mhandler.cmd = do_trace_event_set_state,
272 STEXI
273 @item trace-event
274 @findex trace-event
275 changes status of a trace event
276 ETEXI
278 #if defined(CONFIG_TRACE_SIMPLE)
280 .name = "trace-file",
281 .args_type = "op:s?,arg:F?",
282 .params = "on|off|flush|set [arg]",
283 .help = "open, close, or flush trace file, or set a new file name",
284 .mhandler.cmd = do_trace_file,
287 STEXI
288 @item trace-file on|off|flush
289 @findex trace-file
290 Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed.
291 ETEXI
292 #endif
295 .name = "log",
296 .args_type = "items:s",
297 .params = "item1[,...]",
298 .help = "activate logging of the specified items",
299 .mhandler.cmd = do_log,
302 STEXI
303 @item log @var{item1}[,...]
304 @findex log
305 Activate logging of the specified items.
306 ETEXI
309 .name = "savevm",
310 .args_type = "name:s?",
311 .params = "[tag|id]",
312 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
313 .mhandler.cmd = do_savevm,
316 STEXI
317 @item savevm [@var{tag}|@var{id}]
318 @findex savevm
319 Create a snapshot of the whole virtual machine. If @var{tag} is
320 provided, it is used as human readable identifier. If there is already
321 a snapshot with the same tag or ID, it is replaced. More info at
322 @ref{vm_snapshots}.
323 ETEXI
326 .name = "loadvm",
327 .args_type = "name:s",
328 .params = "tag|id",
329 .help = "restore a VM snapshot from its tag or id",
330 .mhandler.cmd = do_loadvm,
333 STEXI
334 @item loadvm @var{tag}|@var{id}
335 @findex loadvm
336 Set the whole virtual machine to the snapshot identified by the tag
337 @var{tag} or the unique snapshot ID @var{id}.
338 ETEXI
341 .name = "delvm",
342 .args_type = "name:s",
343 .params = "tag|id",
344 .help = "delete a VM snapshot from its tag or id",
345 .mhandler.cmd = do_delvm,
348 STEXI
349 @item delvm @var{tag}|@var{id}
350 @findex delvm
351 Delete the snapshot identified by @var{tag} or @var{id}.
352 ETEXI
355 .name = "singlestep",
356 .args_type = "option:s?",
357 .params = "[on|off]",
358 .help = "run emulation in singlestep mode or switch to normal mode",
359 .mhandler.cmd = do_singlestep,
362 STEXI
363 @item singlestep [off]
364 @findex singlestep
365 Run the emulation in single step mode.
366 If called with option off, the emulation returns to normal mode.
367 ETEXI
370 .name = "stop",
371 .args_type = "",
372 .params = "",
373 .help = "stop emulation",
374 .mhandler.cmd = hmp_stop,
377 STEXI
378 @item stop
379 @findex stop
380 Stop emulation.
381 ETEXI
384 .name = "c|cont",
385 .args_type = "",
386 .params = "",
387 .help = "resume emulation",
388 .mhandler.cmd = hmp_cont,
391 STEXI
392 @item c or cont
393 @findex cont
394 Resume emulation.
395 ETEXI
398 .name = "system_wakeup",
399 .args_type = "",
400 .params = "",
401 .help = "wakeup guest from suspend",
402 .mhandler.cmd = hmp_system_wakeup,
405 STEXI
406 @item system_wakeup
407 @findex system_wakeup
408 Wakeup guest from suspend.
409 ETEXI
412 .name = "gdbserver",
413 .args_type = "device:s?",
414 .params = "[device]",
415 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
416 .mhandler.cmd = do_gdbserver,
419 STEXI
420 @item gdbserver [@var{port}]
421 @findex gdbserver
422 Start gdbserver session (default @var{port}=1234)
423 ETEXI
426 .name = "x",
427 .args_type = "fmt:/,addr:l",
428 .params = "/fmt addr",
429 .help = "virtual memory dump starting at 'addr'",
430 .mhandler.cmd = do_memory_dump,
433 STEXI
434 @item x/fmt @var{addr}
435 @findex x
436 Virtual memory dump starting at @var{addr}.
437 ETEXI
440 .name = "xp",
441 .args_type = "fmt:/,addr:l",
442 .params = "/fmt addr",
443 .help = "physical memory dump starting at 'addr'",
444 .mhandler.cmd = do_physical_memory_dump,
447 STEXI
448 @item xp /@var{fmt} @var{addr}
449 @findex xp
450 Physical memory dump starting at @var{addr}.
452 @var{fmt} is a format which tells the command how to format the
453 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
455 @table @var
456 @item count
457 is the number of items to be dumped.
459 @item format
460 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
461 c (char) or i (asm instruction).
463 @item size
464 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
465 @code{h} or @code{w} can be specified with the @code{i} format to
466 respectively select 16 or 32 bit code instruction size.
468 @end table
470 Examples:
471 @itemize
472 @item
473 Dump 10 instructions at the current instruction pointer:
474 @example
475 (qemu) x/10i $eip
476 0x90107063: ret
477 0x90107064: sti
478 0x90107065: lea 0x0(%esi,1),%esi
479 0x90107069: lea 0x0(%edi,1),%edi
480 0x90107070: ret
481 0x90107071: jmp 0x90107080
482 0x90107073: nop
483 0x90107074: nop
484 0x90107075: nop
485 0x90107076: nop
486 @end example
488 @item
489 Dump 80 16 bit values at the start of the video memory.
490 @smallexample
491 (qemu) xp/80hx 0xb8000
492 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
493 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
494 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
495 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
496 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
497 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
498 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
499 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
500 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
501 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
502 @end smallexample
503 @end itemize
504 ETEXI
507 .name = "p|print",
508 .args_type = "fmt:/,val:l",
509 .params = "/fmt expr",
510 .help = "print expression value (use $reg for CPU register access)",
511 .mhandler.cmd = do_print,
514 STEXI
515 @item p or print/@var{fmt} @var{expr}
516 @findex print
518 Print expression value. Only the @var{format} part of @var{fmt} is
519 used.
520 ETEXI
523 .name = "i",
524 .args_type = "fmt:/,addr:i,index:i.",
525 .params = "/fmt addr",
526 .help = "I/O port read",
527 .mhandler.cmd = do_ioport_read,
530 STEXI
531 Read I/O port.
532 ETEXI
535 .name = "o",
536 .args_type = "fmt:/,addr:i,val:i",
537 .params = "/fmt addr value",
538 .help = "I/O port write",
539 .mhandler.cmd = do_ioport_write,
542 STEXI
543 Write to I/O port.
544 ETEXI
547 .name = "sendkey",
548 .args_type = "keys:s,hold-time:i?",
549 .params = "keys [hold_ms]",
550 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
551 .mhandler.cmd = hmp_send_key,
554 STEXI
555 @item sendkey @var{keys}
556 @findex sendkey
558 Send @var{keys} to the guest. @var{keys} could be the name of the
559 key or the raw value in hexadecimal format. Use @code{-} to press
560 several keys simultaneously. Example:
561 @example
562 sendkey ctrl-alt-f1
563 @end example
565 This command is useful to send keys that your graphical user interface
566 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
567 ETEXI
570 .name = "system_reset",
571 .args_type = "",
572 .params = "",
573 .help = "reset the system",
574 .mhandler.cmd = hmp_system_reset,
577 STEXI
578 @item system_reset
579 @findex system_reset
581 Reset the system.
582 ETEXI
585 .name = "system_powerdown",
586 .args_type = "",
587 .params = "",
588 .help = "send system power down event",
589 .mhandler.cmd = hmp_system_powerdown,
592 STEXI
593 @item system_powerdown
594 @findex system_powerdown
596 Power down the system (if supported).
597 ETEXI
600 .name = "sum",
601 .args_type = "start:i,size:i",
602 .params = "addr size",
603 .help = "compute the checksum of a memory region",
604 .mhandler.cmd = do_sum,
607 STEXI
608 @item sum @var{addr} @var{size}
609 @findex sum
611 Compute the checksum of a memory region.
612 ETEXI
615 .name = "usb_add",
616 .args_type = "devname:s",
617 .params = "device",
618 .help = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",
619 .mhandler.cmd = do_usb_add,
622 STEXI
623 @item usb_add @var{devname}
624 @findex usb_add
626 Add the USB device @var{devname}. For details of available devices see
627 @ref{usb_devices}
628 ETEXI
631 .name = "usb_del",
632 .args_type = "devname:s",
633 .params = "device",
634 .help = "remove USB device 'bus.addr'",
635 .mhandler.cmd = do_usb_del,
638 STEXI
639 @item usb_del @var{devname}
640 @findex usb_del
642 Remove the USB device @var{devname} from the QEMU virtual USB
643 hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
644 command @code{info usb} to see the devices you can remove.
645 ETEXI
648 .name = "device_add",
649 .args_type = "device:O",
650 .params = "driver[,prop=value][,...]",
651 .help = "add device, like -device on the command line",
652 .user_print = monitor_user_noop,
653 .mhandler.cmd_new = do_device_add,
656 STEXI
657 @item device_add @var{config}
658 @findex device_add
660 Add device.
661 ETEXI
664 .name = "device_del",
665 .args_type = "id:s",
666 .params = "device",
667 .help = "remove device",
668 .mhandler.cmd = hmp_device_del,
671 STEXI
672 @item device_del @var{id}
673 @findex device_del
675 Remove device @var{id}.
676 ETEXI
679 .name = "cpu",
680 .args_type = "index:i",
681 .params = "index",
682 .help = "set the default CPU",
683 .mhandler.cmd = hmp_cpu,
686 STEXI
687 @item cpu @var{index}
688 @findex cpu
689 Set the default CPU.
690 ETEXI
693 .name = "mouse_move",
694 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
695 .params = "dx dy [dz]",
696 .help = "send mouse move events",
697 .mhandler.cmd = do_mouse_move,
700 STEXI
701 @item mouse_move @var{dx} @var{dy} [@var{dz}]
702 @findex mouse_move
703 Move the active mouse to the specified coordinates @var{dx} @var{dy}
704 with optional scroll axis @var{dz}.
705 ETEXI
708 .name = "mouse_button",
709 .args_type = "button_state:i",
710 .params = "state",
711 .help = "change mouse button state (1=L, 2=M, 4=R)",
712 .mhandler.cmd = do_mouse_button,
715 STEXI
716 @item mouse_button @var{val}
717 @findex mouse_button
718 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
719 ETEXI
722 .name = "mouse_set",
723 .args_type = "index:i",
724 .params = "index",
725 .help = "set which mouse device receives events",
726 .mhandler.cmd = do_mouse_set,
729 STEXI
730 @item mouse_set @var{index}
731 @findex mouse_set
732 Set which mouse device receives events at given @var{index}, index
733 can be obtained with
734 @example
735 info mice
736 @end example
737 ETEXI
740 .name = "wavcapture",
741 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?",
742 .params = "path [frequency [bits [channels]]]",
743 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
744 .mhandler.cmd = do_wav_capture,
746 STEXI
747 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
748 @findex wavcapture
749 Capture audio into @var{filename}. Using sample rate @var{frequency}
750 bits per sample @var{bits} and number of channels @var{channels}.
752 Defaults:
753 @itemize @minus
754 @item Sample rate = 44100 Hz - CD quality
755 @item Bits = 16
756 @item Number of channels = 2 - Stereo
757 @end itemize
758 ETEXI
761 .name = "stopcapture",
762 .args_type = "n:i",
763 .params = "capture index",
764 .help = "stop capture",
765 .mhandler.cmd = do_stop_capture,
767 STEXI
768 @item stopcapture @var{index}
769 @findex stopcapture
770 Stop capture with a given @var{index}, index can be obtained with
771 @example
772 info capture
773 @end example
774 ETEXI
777 .name = "memsave",
778 .args_type = "val:l,size:i,filename:s",
779 .params = "addr size file",
780 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
781 .mhandler.cmd = hmp_memsave,
784 STEXI
785 @item memsave @var{addr} @var{size} @var{file}
786 @findex memsave
787 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
788 ETEXI
791 .name = "pmemsave",
792 .args_type = "val:l,size:i,filename:s",
793 .params = "addr size file",
794 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
795 .mhandler.cmd = hmp_pmemsave,
798 STEXI
799 @item pmemsave @var{addr} @var{size} @var{file}
800 @findex pmemsave
801 save to disk physical memory dump starting at @var{addr} of size @var{size}.
802 ETEXI
805 .name = "boot_set",
806 .args_type = "bootdevice:s",
807 .params = "bootdevice",
808 .help = "define new values for the boot device list",
809 .mhandler.cmd = do_boot_set,
812 STEXI
813 @item boot_set @var{bootdevicelist}
814 @findex boot_set
816 Define new values for the boot device list. Those values will override
817 the values specified on the command line through the @code{-boot} option.
819 The values that can be specified here depend on the machine type, but are
820 the same that can be specified in the @code{-boot} command line option.
821 ETEXI
823 #if defined(TARGET_I386)
825 .name = "nmi",
826 .args_type = "",
827 .params = "",
828 .help = "inject an NMI on all guest's CPUs",
829 .mhandler.cmd = hmp_inject_nmi,
831 #endif
832 STEXI
833 @item nmi @var{cpu}
834 @findex nmi
835 Inject an NMI on the given CPU (x86 only).
837 ETEXI
840 .name = "ringbuf_write",
841 .args_type = "device:s,data:s",
842 .params = "device data",
843 .help = "Write to a ring buffer character device",
844 .mhandler.cmd = hmp_ringbuf_write,
847 STEXI
848 @item ringbuf_write @var{device} @var{data}
849 @findex ringbuf_write
850 Write @var{data} to ring buffer character device @var{device}.
851 @var{data} must be a UTF-8 string.
853 ETEXI
856 .name = "ringbuf_read",
857 .args_type = "device:s,size:i",
858 .params = "device size",
859 .help = "Read from a ring buffer character device",
860 .mhandler.cmd = hmp_ringbuf_read,
863 STEXI
864 @item ringbuf_read @var{device}
865 @findex ringbuf_read
866 Read and print up to @var{size} bytes from ring buffer character
867 device @var{device}.
868 Certain non-printable characters are printed \uXXXX, where XXXX is the
869 character code in hexadecimal. Character \ is printed \\.
870 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
871 NUL characters, after the ring buffer lost data, and when reading
872 stops because the size limit is reached.
874 ETEXI
877 .name = "migrate",
878 .args_type = "detach:-d,blk:-b,inc:-i,uri:s",
879 .params = "[-d] [-b] [-i] uri",
880 .help = "migrate to URI (using -d to not wait for completion)"
881 "\n\t\t\t -b for migration without shared storage with"
882 " full copy of disk\n\t\t\t -i for migration without "
883 "shared storage with incremental copy of disk "
884 "(base image shared between src and destination)",
885 .mhandler.cmd = hmp_migrate,
889 STEXI
890 @item migrate [-d] [-b] [-i] @var{uri}
891 @findex migrate
892 Migrate to @var{uri} (using -d to not wait for completion).
893 -b for migration with full copy of disk
894 -i for migration with incremental copy of disk (base image is shared)
895 ETEXI
898 .name = "migrate_cancel",
899 .args_type = "",
900 .params = "",
901 .help = "cancel the current VM migration",
902 .mhandler.cmd = hmp_migrate_cancel,
905 STEXI
906 @item migrate_cancel
907 @findex migrate_cancel
908 Cancel the current VM migration.
910 ETEXI
913 .name = "migrate_set_cache_size",
914 .args_type = "value:o",
915 .params = "value",
916 .help = "set cache size (in bytes) for XBZRLE migrations,"
917 "the cache size will be rounded down to the nearest "
918 "power of 2.\n"
919 "The cache size affects the number of cache misses."
920 "In case of a high cache miss ratio you need to increase"
921 " the cache size",
922 .mhandler.cmd = hmp_migrate_set_cache_size,
925 STEXI
926 @item migrate_set_cache_size @var{value}
927 @findex migrate_set_cache_size
928 Set cache size to @var{value} (in bytes) for xbzrle migrations.
929 ETEXI
932 .name = "migrate_set_speed",
933 .args_type = "value:o",
934 .params = "value",
935 .help = "set maximum speed (in bytes) for migrations. "
936 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
937 .mhandler.cmd = hmp_migrate_set_speed,
940 STEXI
941 @item migrate_set_speed @var{value}
942 @findex migrate_set_speed
943 Set maximum speed to @var{value} (in bytes) for migrations.
944 ETEXI
947 .name = "migrate_set_downtime",
948 .args_type = "value:T",
949 .params = "value",
950 .help = "set maximum tolerated downtime (in seconds) for migrations",
951 .mhandler.cmd = hmp_migrate_set_downtime,
954 STEXI
955 @item migrate_set_downtime @var{second}
956 @findex migrate_set_downtime
957 Set maximum tolerated downtime (in seconds) for migration.
958 ETEXI
961 .name = "migrate_set_capability",
962 .args_type = "capability:s,state:b",
963 .params = "capability state",
964 .help = "Enable/Disable the usage of a capability for migration",
965 .mhandler.cmd = hmp_migrate_set_capability,
968 STEXI
969 @item migrate_set_capability @var{capability} @var{state}
970 @findex migrate_set_capability
971 Enable/Disable the usage of a capability @var{capability} for migration.
972 ETEXI
975 .name = "client_migrate_info",
976 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
977 .params = "protocol hostname port tls-port cert-subject",
978 .help = "send migration info to spice/vnc client",
979 .user_print = monitor_user_noop,
980 .mhandler.cmd_async = client_migrate_info,
981 .flags = MONITOR_CMD_ASYNC,
984 STEXI
985 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
986 @findex client_migrate_info
987 Set the spice/vnc connection info for the migration target. The spice/vnc
988 server will ask the spice/vnc client to automatically reconnect using the
989 new parameters (if specified) once the vm migration finished successfully.
990 ETEXI
992 #if defined(CONFIG_HAVE_CORE_DUMP)
994 .name = "dump-guest-memory",
995 .args_type = "paging:-p,filename:F,begin:i?,length:i?",
996 .params = "[-p] filename [begin] [length]",
997 .help = "dump guest memory to file"
998 "\n\t\t\t begin(optional): the starting physical address"
999 "\n\t\t\t length(optional): the memory size, in bytes",
1000 .mhandler.cmd = hmp_dump_guest_memory,
1004 STEXI
1005 @item dump-guest-memory [-p] @var{protocol} @var{begin} @var{length}
1006 @findex dump-guest-memory
1007 Dump guest memory to @var{protocol}. The file can be processed with crash or
1008 gdb.
1009 filename: dump file name
1010 paging: do paging to get guest's memory mapping
1011 begin: the starting physical address. It's optional, and should be
1012 specified with length together.
1013 length: the memory size, in bytes. It's optional, and should be specified
1014 with begin together.
1015 ETEXI
1016 #endif
1019 .name = "snapshot_blkdev",
1020 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1021 .params = "[-n] device [new-image-file] [format]",
1022 .help = "initiates a live snapshot\n\t\t\t"
1023 "of device. If a new image file is specified, the\n\t\t\t"
1024 "new image file will become the new root image.\n\t\t\t"
1025 "If format is specified, the snapshot file will\n\t\t\t"
1026 "be created in that format. Otherwise the\n\t\t\t"
1027 "snapshot will be internal! (currently unsupported).\n\t\t\t"
1028 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1029 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1030 "recreating it from scratch.",
1031 .mhandler.cmd = hmp_snapshot_blkdev,
1034 STEXI
1035 @item snapshot_blkdev
1036 @findex snapshot_blkdev
1037 Snapshot device, using snapshot file as target if provided
1038 ETEXI
1041 .name = "drive_mirror",
1042 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1043 .params = "[-n] [-f] device target [format]",
1044 .help = "initiates live storage\n\t\t\t"
1045 "migration for a device. The device's contents are\n\t\t\t"
1046 "copied to the new image file, including data that\n\t\t\t"
1047 "is written after the command is started.\n\t\t\t"
1048 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1049 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1050 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1051 "so that the result does not need a backing file.\n\t\t\t",
1052 .mhandler.cmd = hmp_drive_mirror,
1054 STEXI
1055 @item drive_mirror
1056 @findex drive_mirror
1057 Start mirroring a block device's writes to a new destination,
1058 using the specified target.
1059 ETEXI
1062 .name = "drive_add",
1063 .args_type = "pci_addr:s,opts:s",
1064 .params = "[[<domain>:]<bus>:]<slot>\n"
1065 "[file=file][,if=type][,bus=n]\n"
1066 "[,unit=m][,media=d][,index=i]\n"
1067 "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
1068 "[,snapshot=on|off][,cache=on|off]\n"
1069 "[,readonly=on|off][,copy-on-read=on|off]",
1070 .help = "add drive to PCI storage controller",
1071 .mhandler.cmd = drive_hot_add,
1074 STEXI
1075 @item drive_add
1076 @findex drive_add
1077 Add drive to PCI storage controller.
1078 ETEXI
1080 #if defined(TARGET_I386)
1082 .name = "pci_add",
1083 .args_type = "pci_addr:s,type:s,opts:s?",
1084 .params = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...",
1085 .help = "hot-add PCI device",
1086 .mhandler.cmd = pci_device_hot_add,
1088 #endif
1090 STEXI
1091 @item pci_add
1092 @findex pci_add
1093 Hot-add PCI device.
1094 ETEXI
1096 #if defined(TARGET_I386)
1098 .name = "pci_del",
1099 .args_type = "pci_addr:s",
1100 .params = "[[<domain>:]<bus>:]<slot>",
1101 .help = "hot remove PCI device",
1102 .mhandler.cmd = do_pci_device_hot_remove,
1104 #endif
1106 STEXI
1107 @item pci_del
1108 @findex pci_del
1109 Hot remove PCI device.
1110 ETEXI
1113 .name = "pcie_aer_inject_error",
1114 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1115 "id:s,error_status:s,"
1116 "header0:i?,header1:i?,header2:i?,header3:i?,"
1117 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1118 .params = "[-a] [-c] id "
1119 "<error_status> [<tlp header> [<tlp header prefix>]]",
1120 .help = "inject pcie aer error\n\t\t\t"
1121 " -a for advisory non fatal error\n\t\t\t"
1122 " -c for correctable error\n\t\t\t"
1123 "<id> = qdev device id\n\t\t\t"
1124 "<error_status> = error string or 32bit\n\t\t\t"
1125 "<tlb header> = 32bit x 4\n\t\t\t"
1126 "<tlb header prefix> = 32bit x 4",
1127 .user_print = pcie_aer_inject_error_print,
1128 .mhandler.cmd_new = do_pcie_aer_inject_error,
1131 STEXI
1132 @item pcie_aer_inject_error
1133 @findex pcie_aer_inject_error
1134 Inject PCIe AER error
1135 ETEXI
1138 .name = "host_net_add",
1139 .args_type = "device:s,opts:s?",
1140 .params = "tap|user|socket|vde|dump [options]",
1141 .help = "add host VLAN client",
1142 .mhandler.cmd = net_host_device_add,
1145 STEXI
1146 @item host_net_add
1147 @findex host_net_add
1148 Add host VLAN client.
1149 ETEXI
1152 .name = "host_net_remove",
1153 .args_type = "vlan_id:i,device:s",
1154 .params = "vlan_id name",
1155 .help = "remove host VLAN client",
1156 .mhandler.cmd = net_host_device_remove,
1159 STEXI
1160 @item host_net_remove
1161 @findex host_net_remove
1162 Remove host VLAN client.
1163 ETEXI
1166 .name = "netdev_add",
1167 .args_type = "netdev:O",
1168 .params = "[user|tap|socket|hubport],id=str[,prop=value][,...]",
1169 .help = "add host network device",
1170 .mhandler.cmd = hmp_netdev_add,
1173 STEXI
1174 @item netdev_add
1175 @findex netdev_add
1176 Add host network device.
1177 ETEXI
1180 .name = "netdev_del",
1181 .args_type = "id:s",
1182 .params = "id",
1183 .help = "remove host network device",
1184 .mhandler.cmd = hmp_netdev_del,
1187 STEXI
1188 @item netdev_del
1189 @findex netdev_del
1190 Remove host network device.
1191 ETEXI
1193 #ifdef CONFIG_SLIRP
1195 .name = "hostfwd_add",
1196 .args_type = "arg1:s,arg2:s?,arg3:s?",
1197 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1198 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1199 .mhandler.cmd = net_slirp_hostfwd_add,
1201 #endif
1202 STEXI
1203 @item hostfwd_add
1204 @findex hostfwd_add
1205 Redirect TCP or UDP connections from host to guest (requires -net user).
1206 ETEXI
1208 #ifdef CONFIG_SLIRP
1210 .name = "hostfwd_remove",
1211 .args_type = "arg1:s,arg2:s?,arg3:s?",
1212 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
1213 .help = "remove host-to-guest TCP or UDP redirection",
1214 .mhandler.cmd = net_slirp_hostfwd_remove,
1217 #endif
1218 STEXI
1219 @item hostfwd_remove
1220 @findex hostfwd_remove
1221 Remove host-to-guest TCP or UDP redirection.
1222 ETEXI
1225 .name = "balloon",
1226 .args_type = "value:M",
1227 .params = "target",
1228 .help = "request VM to change its memory allocation (in MB)",
1229 .mhandler.cmd = hmp_balloon,
1232 STEXI
1233 @item balloon @var{value}
1234 @findex balloon
1235 Request VM to change its memory allocation to @var{value} (in MB).
1236 ETEXI
1239 .name = "set_link",
1240 .args_type = "name:s,up:b",
1241 .params = "name on|off",
1242 .help = "change the link status of a network adapter",
1243 .mhandler.cmd = hmp_set_link,
1246 STEXI
1247 @item set_link @var{name} [on|off]
1248 @findex set_link
1249 Switch link @var{name} on (i.e. up) or off (i.e. down).
1250 ETEXI
1253 .name = "watchdog_action",
1254 .args_type = "action:s",
1255 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1256 .help = "change watchdog action",
1257 .mhandler.cmd = do_watchdog_action,
1260 STEXI
1261 @item watchdog_action
1262 @findex watchdog_action
1263 Change watchdog action.
1264 ETEXI
1267 .name = "acl_show",
1268 .args_type = "aclname:s",
1269 .params = "aclname",
1270 .help = "list rules in the access control list",
1271 .mhandler.cmd = do_acl_show,
1274 STEXI
1275 @item acl_show @var{aclname}
1276 @findex acl_show
1277 List all the matching rules in the access control list, and the default
1278 policy. There are currently two named access control lists,
1279 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1280 certificate distinguished name, and SASL username respectively.
1281 ETEXI
1284 .name = "acl_policy",
1285 .args_type = "aclname:s,policy:s",
1286 .params = "aclname allow|deny",
1287 .help = "set default access control list policy",
1288 .mhandler.cmd = do_acl_policy,
1291 STEXI
1292 @item acl_policy @var{aclname} @code{allow|deny}
1293 @findex acl_policy
1294 Set the default access control list policy, used in the event that
1295 none of the explicit rules match. The default policy at startup is
1296 always @code{deny}.
1297 ETEXI
1300 .name = "acl_add",
1301 .args_type = "aclname:s,match:s,policy:s,index:i?",
1302 .params = "aclname match allow|deny [index]",
1303 .help = "add a match rule to the access control list",
1304 .mhandler.cmd = do_acl_add,
1307 STEXI
1308 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1309 @findex acl_add
1310 Add a match rule to the access control list, allowing or denying access.
1311 The match will normally be an exact username or x509 distinguished name,
1312 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1313 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1314 normally be appended to the end of the ACL, but can be inserted
1315 earlier in the list if the optional @var{index} parameter is supplied.
1316 ETEXI
1319 .name = "acl_remove",
1320 .args_type = "aclname:s,match:s",
1321 .params = "aclname match",
1322 .help = "remove a match rule from the access control list",
1323 .mhandler.cmd = do_acl_remove,
1326 STEXI
1327 @item acl_remove @var{aclname} @var{match}
1328 @findex acl_remove
1329 Remove the specified match rule from the access control list.
1330 ETEXI
1333 .name = "acl_reset",
1334 .args_type = "aclname:s",
1335 .params = "aclname",
1336 .help = "reset the access control list",
1337 .mhandler.cmd = do_acl_reset,
1340 STEXI
1341 @item acl_reset @var{aclname}
1342 @findex acl_reset
1343 Remove all matches from the access control list, and set the default
1344 policy back to @code{deny}.
1345 ETEXI
1348 .name = "nbd_server_start",
1349 .args_type = "all:-a,writable:-w,uri:s",
1350 .params = "nbd_server_start [-a] [-w] host:port",
1351 .help = "serve block devices on the given host and port",
1352 .mhandler.cmd = hmp_nbd_server_start,
1354 STEXI
1355 @item nbd_server_start @var{host}:@var{port}
1356 @findex nbd_server_start
1357 Start an NBD server on the given host and/or port. If the @option{-a}
1358 option is included, all of the virtual machine's block devices that
1359 have an inserted media on them are automatically exported; in this case,
1360 the @option{-w} option makes the devices writable too.
1361 ETEXI
1364 .name = "nbd_server_add",
1365 .args_type = "writable:-w,device:B",
1366 .params = "nbd_server_add [-w] device",
1367 .help = "export a block device via NBD",
1368 .mhandler.cmd = hmp_nbd_server_add,
1370 STEXI
1371 @item nbd_server_add @var{device}
1372 @findex nbd_server_add
1373 Export a block device through QEMU's NBD server, which must be started
1374 beforehand with @command{nbd_server_start}. The @option{-w} option makes the
1375 exported device writable too.
1376 ETEXI
1379 .name = "nbd_server_stop",
1380 .args_type = "",
1381 .params = "nbd_server_stop",
1382 .help = "stop serving block devices using the NBD protocol",
1383 .mhandler.cmd = hmp_nbd_server_stop,
1385 STEXI
1386 @item nbd_server_stop
1387 @findex nbd_server_stop
1388 Stop the QEMU embedded NBD server.
1389 ETEXI
1392 #if defined(TARGET_I386)
1395 .name = "mce",
1396 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1397 .params = "[-b] cpu bank status mcgstatus addr misc",
1398 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1399 .mhandler.cmd = do_inject_mce,
1402 #endif
1403 STEXI
1404 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1405 @findex mce (x86)
1406 Inject an MCE on the given CPU (x86 only).
1407 ETEXI
1410 .name = "getfd",
1411 .args_type = "fdname:s",
1412 .params = "getfd name",
1413 .help = "receive a file descriptor via SCM rights and assign it a name",
1414 .mhandler.cmd = hmp_getfd,
1417 STEXI
1418 @item getfd @var{fdname}
1419 @findex getfd
1420 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1421 mechanism on unix sockets, it is stored using the name @var{fdname} for
1422 later use by other monitor commands.
1423 ETEXI
1426 .name = "closefd",
1427 .args_type = "fdname:s",
1428 .params = "closefd name",
1429 .help = "close a file descriptor previously passed via SCM rights",
1430 .mhandler.cmd = hmp_closefd,
1433 STEXI
1434 @item closefd @var{fdname}
1435 @findex closefd
1436 Close the file descriptor previously assigned to @var{fdname} using the
1437 @code{getfd} command. This is only needed if the file descriptor was never
1438 used by another monitor command.
1439 ETEXI
1442 .name = "block_passwd",
1443 .args_type = "device:B,password:s",
1444 .params = "block_passwd device password",
1445 .help = "set the password of encrypted block devices",
1446 .mhandler.cmd = hmp_block_passwd,
1449 STEXI
1450 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1451 @findex block_set_io_throttle
1452 Change I/O throttle limits for a block drive to @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1453 ETEXI
1456 .name = "block_set_io_throttle",
1457 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1458 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1459 .help = "change I/O throttle limits for a block drive",
1460 .mhandler.cmd = hmp_block_set_io_throttle,
1463 STEXI
1464 @item block_passwd @var{device} @var{password}
1465 @findex block_passwd
1466 Set the encrypted device @var{device} password to @var{password}
1467 ETEXI
1470 .name = "set_password",
1471 .args_type = "protocol:s,password:s,connected:s?",
1472 .params = "protocol password action-if-connected",
1473 .help = "set spice/vnc password",
1474 .mhandler.cmd = hmp_set_password,
1477 STEXI
1478 @item set_password [ vnc | spice ] password [ action-if-connected ]
1479 @findex set_password
1481 Change spice/vnc password. Use zero to make the password stay valid
1482 forever. @var{action-if-connected} specifies what should happen in
1483 case a connection is established: @var{fail} makes the password change
1484 fail. @var{disconnect} changes the password and disconnects the
1485 client. @var{keep} changes the password and keeps the connection up.
1486 @var{keep} is the default.
1487 ETEXI
1490 .name = "expire_password",
1491 .args_type = "protocol:s,time:s",
1492 .params = "protocol time",
1493 .help = "set spice/vnc password expire-time",
1494 .mhandler.cmd = hmp_expire_password,
1497 STEXI
1498 @item expire_password [ vnc | spice ] expire-time
1499 @findex expire_password
1501 Specify when a password for spice/vnc becomes
1502 invalid. @var{expire-time} accepts:
1504 @table @var
1505 @item now
1506 Invalidate password instantly.
1508 @item never
1509 Password stays valid forever.
1511 @item +nsec
1512 Password stays valid for @var{nsec} seconds starting now.
1514 @item nsec
1515 Password is invalidated at the given time. @var{nsec} are the seconds
1516 passed since 1970, i.e. unix epoch.
1518 @end table
1519 ETEXI
1522 .name = "chardev-add",
1523 .args_type = "args:s",
1524 .params = "args",
1525 .help = "add chardev",
1526 .mhandler.cmd = hmp_chardev_add,
1529 STEXI
1530 @item chardev_add args
1531 @findex chardev_add
1533 chardev_add accepts the same parameters as the -chardev command line switch.
1535 ETEXI
1538 .name = "chardev-remove",
1539 .args_type = "id:s",
1540 .params = "id",
1541 .help = "remove chardev",
1542 .mhandler.cmd = hmp_chardev_remove,
1545 STEXI
1546 @item chardev_remove id
1547 @findex chardev_remove
1549 Removes the chardev @var{id}.
1551 ETEXI
1554 .name = "info",
1555 .args_type = "item:s?",
1556 .params = "[subcommand]",
1557 .help = "show various information about the system state",
1558 .mhandler.cmd = do_info_help,
1559 .sub_table = info_cmds,
1562 STEXI
1563 @item info @var{subcommand}
1564 @findex info
1565 Show various information about the system state.
1567 @table @option
1568 @item info version
1569 show the version of QEMU
1570 @item info network
1571 show the various VLANs and the associated devices
1572 @item info chardev
1573 show the character devices
1574 @item info block
1575 show the block devices
1576 @item info blockstats
1577 show block device statistics
1578 @item info registers
1579 show the cpu registers
1580 @item info cpus
1581 show infos for each CPU
1582 @item info history
1583 show the command line history
1584 @item info irq
1585 show the interrupts statistics (if available)
1586 @item info pic
1587 show i8259 (PIC) state
1588 @item info pci
1589 show emulated PCI device info
1590 @item info tlb
1591 show virtual to physical memory mappings (i386, SH4, SPARC, PPC, and Xtensa only)
1592 @item info mem
1593 show the active virtual memory mappings (i386 only)
1594 @item info jit
1595 show dynamic compiler info
1596 @item info numa
1597 show NUMA information
1598 @item info kvm
1599 show KVM information
1600 @item info usb
1601 show USB devices plugged on the virtual USB hub
1602 @item info usbhost
1603 show all USB host devices
1604 @item info profile
1605 show profiling information
1606 @item info capture
1607 show information about active capturing
1608 @item info snapshots
1609 show list of VM snapshots
1610 @item info status
1611 show the current VM status (running|paused)
1612 @item info pcmcia
1613 show guest PCMCIA status
1614 @item info mice
1615 show which guest mouse is receiving events
1616 @item info vnc
1617 show the vnc server status
1618 @item info name
1619 show the current VM name
1620 @item info uuid
1621 show the current VM UUID
1622 @item info cpustats
1623 show CPU statistics
1624 @item info usernet
1625 show user network stack connection states
1626 @item info migrate
1627 show migration status
1628 @item info migrate_capabilities
1629 show current migration capabilities
1630 @item info migrate_cache_size
1631 show current migration XBZRLE cache size
1632 @item info balloon
1633 show balloon information
1634 @item info qtree
1635 show device tree
1636 @item info qdm
1637 show qdev device model list
1638 @item info roms
1639 show roms
1640 @item info tpm
1641 show the TPM device
1642 @end table
1643 ETEXI
1645 STEXI
1646 @item info trace-events
1647 show available trace events and their state
1648 ETEXI
1650 STEXI
1651 @end table
1652 ETEXI