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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
7
8 STEXI
9 @table @option
10 ETEXI
11
12 {
13 .name = "help|?",
14 .args_type = "name:s?",
15 .params = "[cmd]",
16 .help = "show the help",
17 .mhandler.cmd = do_help_cmd,
18 },
19
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
25
26 {
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,
32 },
33
34 STEXI
35 @item commit
36 @findex commit
37 Commit changes to the disk images (if -snapshot is used) or backing files.
38 ETEXI
39
40 {
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,
47 },
48
49 STEXI
50 @item q or quit
51 @findex quit
52 Quit the emulator.
53 ETEXI
54
55 {
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,
61 },
62
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
71
72 {
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,
78 },
79
80 STEXI
81 @item block_stream
82 @findex block_stream
83 Copy data from a backing file into a block device.
84 ETEXI
85
86 {
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,
92 },
93
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
99
100 {
101 .name = "block_job_cancel",
102 .args_type = "device:B",
103 .params = "device",
104 .help = "stop an active background block operation",
105 .mhandler.cmd = hmp_block_job_cancel,
106 },
107
108 STEXI
109 @item block_job_cancel
110 @findex block_job_cancel
111 Stop an active block streaming operation.
112 ETEXI
113
114 {
115 .name = "eject",
116 .args_type = "force:-f,device:B",
117 .params = "[-f] device",
118 .help = "eject a removable medium (use -f to force it)",
119 .mhandler.cmd = hmp_eject,
120 },
121
122 STEXI
123 @item eject [-f] @var{device}
124 @findex eject
125 Eject a removable medium (use -f to force it).
126 ETEXI
127
128 {
129 .name = "drive_del",
130 .args_type = "id:s",
131 .params = "device",
132 .help = "remove host block device",
133 .user_print = monitor_user_noop,
134 .mhandler.cmd_new = do_drive_del,
135 },
136
137 STEXI
138 @item drive_del @var{device}
139 @findex drive_del
140 Remove host block device. The result is that guest generated IO is no longer
141 submitted against the host device underlying the disk. Once a drive has
142 been deleted, the QEMU Block layer returns -EIO which results in IO
143 errors in the guest for applications that are reading/writing to the device.
144 ETEXI
145
146 {
147 .name = "change",
148 .args_type = "device:B,target:F,arg:s?",
149 .params = "device filename [format]",
150 .help = "change a removable medium, optional format",
151 .mhandler.cmd = hmp_change,
152 },
153
154 STEXI
155 @item change @var{device} @var{setting}
156 @findex change
157
158 Change the configuration of a device.
159
160 @table @option
161 @item change @var{diskdevice} @var{filename} [@var{format}]
162 Change the medium for a removable disk device to point to @var{filename}. eg
163
164 @example
165 (qemu) change ide1-cd0 /path/to/some.iso
166 @end example
167
168 @var{format} is optional.
169
170 @item change vnc @var{display},@var{options}
171 Change the configuration of the VNC server. The valid syntax for @var{display}
172 and @var{options} are described at @ref{sec_invocation}. eg
173
174 @example
175 (qemu) change vnc localhost:1
176 @end example
177
178 @item change vnc password [@var{password}]
179
180 Change the password associated with the VNC server. If the new password is not
181 supplied, the monitor will prompt for it to be entered. VNC passwords are only
182 significant up to 8 letters. eg
183
184 @example
185 (qemu) change vnc password
186 Password: ********
187 @end example
188
189 @end table
190 ETEXI
191
192 {
193 .name = "screendump",
194 .args_type = "filename:F",
195 .params = "filename",
196 .help = "save screen into PPM image 'filename'",
197 .user_print = monitor_user_noop,
198 .mhandler.cmd_new = do_screen_dump,
199 },
200
201 STEXI
202 @item screendump @var{filename}
203 @findex screendump
204 Save screen into PPM image @var{filename}.
205 ETEXI
206
207 {
208 .name = "logfile",
209 .args_type = "filename:F",
210 .params = "filename",
211 .help = "output logs to 'filename'",
212 .mhandler.cmd = do_logfile,
213 },
214
215 STEXI
216 @item logfile @var{filename}
217 @findex logfile
218 Output logs to @var{filename}.
219 ETEXI
220
221 {
222 .name = "trace-event",
223 .args_type = "name:s,option:b",
224 .params = "name on|off",
225 .help = "changes status of a specific trace event",
226 .mhandler.cmd = do_trace_event_set_state,
227 },
228
229 STEXI
230 @item trace-event
231 @findex trace-event
232 changes status of a trace event
233 ETEXI
234
235 #if defined(CONFIG_TRACE_SIMPLE)
236 {
237 .name = "trace-file",
238 .args_type = "op:s?,arg:F?",
239 .params = "on|off|flush|set [arg]",
240 .help = "open, close, or flush trace file, or set a new file name",
241 .mhandler.cmd = do_trace_file,
242 },
243
244 STEXI
245 @item trace-file on|off|flush
246 @findex trace-file
247 Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed.
248 ETEXI
249 #endif
250
251 {
252 .name = "log",
253 .args_type = "items:s",
254 .params = "item1[,...]",
255 .help = "activate logging of the specified items to '/tmp/qemu.log'",
256 .mhandler.cmd = do_log,
257 },
258
259 STEXI
260 @item log @var{item1}[,...]
261 @findex log
262 Activate logging of the specified items to @file{/tmp/qemu.log}.
263 ETEXI
264
265 {
266 .name = "savevm",
267 .args_type = "name:s?",
268 .params = "[tag|id]",
269 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
270 .mhandler.cmd = do_savevm,
271 },
272
273 STEXI
274 @item savevm [@var{tag}|@var{id}]
275 @findex savevm
276 Create a snapshot of the whole virtual machine. If @var{tag} is
277 provided, it is used as human readable identifier. If there is already
278 a snapshot with the same tag or ID, it is replaced. More info at
279 @ref{vm_snapshots}.
280 ETEXI
281
282 {
283 .name = "loadvm",
284 .args_type = "name:s",
285 .params = "tag|id",
286 .help = "restore a VM snapshot from its tag or id",
287 .mhandler.cmd = do_loadvm,
288 },
289
290 STEXI
291 @item loadvm @var{tag}|@var{id}
292 @findex loadvm
293 Set the whole virtual machine to the snapshot identified by the tag
294 @var{tag} or the unique snapshot ID @var{id}.
295 ETEXI
296
297 {
298 .name = "delvm",
299 .args_type = "name:s",
300 .params = "tag|id",
301 .help = "delete a VM snapshot from its tag or id",
302 .mhandler.cmd = do_delvm,
303 },
304
305 STEXI
306 @item delvm @var{tag}|@var{id}
307 @findex delvm
308 Delete the snapshot identified by @var{tag} or @var{id}.
309 ETEXI
310
311 {
312 .name = "singlestep",
313 .args_type = "option:s?",
314 .params = "[on|off]",
315 .help = "run emulation in singlestep mode or switch to normal mode",
316 .mhandler.cmd = do_singlestep,
317 },
318
319 STEXI
320 @item singlestep [off]
321 @findex singlestep
322 Run the emulation in single step mode.
323 If called with option off, the emulation returns to normal mode.
324 ETEXI
325
326 {
327 .name = "stop",
328 .args_type = "",
329 .params = "",
330 .help = "stop emulation",
331 .mhandler.cmd = hmp_stop,
332 },
333
334 STEXI
335 @item stop
336 @findex stop
337 Stop emulation.
338 ETEXI
339
340 {
341 .name = "c|cont",
342 .args_type = "",
343 .params = "",
344 .help = "resume emulation",
345 .mhandler.cmd = hmp_cont,
346 },
347
348 STEXI
349 @item c or cont
350 @findex cont
351 Resume emulation.
352 ETEXI
353
354 {
355 .name = "system_wakeup",
356 .args_type = "",
357 .params = "",
358 .help = "wakeup guest from suspend",
359 .mhandler.cmd = hmp_system_wakeup,
360 },
361
362 STEXI
363 @item system_wakeup
364 @findex system_wakeup
365 Wakeup guest from suspend.
366 ETEXI
367
368 {
369 .name = "gdbserver",
370 .args_type = "device:s?",
371 .params = "[device]",
372 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
373 .mhandler.cmd = do_gdbserver,
374 },
375
376 STEXI
377 @item gdbserver [@var{port}]
378 @findex gdbserver
379 Start gdbserver session (default @var{port}=1234)
380 ETEXI
381
382 {
383 .name = "x",
384 .args_type = "fmt:/,addr:l",
385 .params = "/fmt addr",
386 .help = "virtual memory dump starting at 'addr'",
387 .mhandler.cmd = do_memory_dump,
388 },
389
390 STEXI
391 @item x/fmt @var{addr}
392 @findex x
393 Virtual memory dump starting at @var{addr}.
394 ETEXI
395
396 {
397 .name = "xp",
398 .args_type = "fmt:/,addr:l",
399 .params = "/fmt addr",
400 .help = "physical memory dump starting at 'addr'",
401 .mhandler.cmd = do_physical_memory_dump,
402 },
403
404 STEXI
405 @item xp /@var{fmt} @var{addr}
406 @findex xp
407 Physical memory dump starting at @var{addr}.
408
409 @var{fmt} is a format which tells the command how to format the
410 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
411
412 @table @var
413 @item count
414 is the number of items to be dumped.
415
416 @item format
417 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
418 c (char) or i (asm instruction).
419
420 @item size
421 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
422 @code{h} or @code{w} can be specified with the @code{i} format to
423 respectively select 16 or 32 bit code instruction size.
424
425 @end table
426
427 Examples:
428 @itemize
429 @item
430 Dump 10 instructions at the current instruction pointer:
431 @example
432 (qemu) x/10i $eip
433 0x90107063: ret
434 0x90107064: sti
435 0x90107065: lea 0x0(%esi,1),%esi
436 0x90107069: lea 0x0(%edi,1),%edi
437 0x90107070: ret
438 0x90107071: jmp 0x90107080
439 0x90107073: nop
440 0x90107074: nop
441 0x90107075: nop
442 0x90107076: nop
443 @end example
444
445 @item
446 Dump 80 16 bit values at the start of the video memory.
447 @smallexample
448 (qemu) xp/80hx 0xb8000
449 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
450 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
451 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
452 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
453 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
454 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
455 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
456 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
457 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
458 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
459 @end smallexample
460 @end itemize
461 ETEXI
462
463 {
464 .name = "p|print",
465 .args_type = "fmt:/,val:l",
466 .params = "/fmt expr",
467 .help = "print expression value (use $reg for CPU register access)",
468 .mhandler.cmd = do_print,
469 },
470
471 STEXI
472 @item p or print/@var{fmt} @var{expr}
473 @findex print
474
475 Print expression value. Only the @var{format} part of @var{fmt} is
476 used.
477 ETEXI
478
479 {
480 .name = "i",
481 .args_type = "fmt:/,addr:i,index:i.",
482 .params = "/fmt addr",
483 .help = "I/O port read",
484 .mhandler.cmd = do_ioport_read,
485 },
486
487 STEXI
488 Read I/O port.
489 ETEXI
490
491 {
492 .name = "o",
493 .args_type = "fmt:/,addr:i,val:i",
494 .params = "/fmt addr value",
495 .help = "I/O port write",
496 .mhandler.cmd = do_ioport_write,
497 },
498
499 STEXI
500 Write to I/O port.
501 ETEXI
502
503 {
504 .name = "sendkey",
505 .args_type = "keys:s,hold-time:i?",
506 .params = "keys [hold_ms]",
507 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
508 .mhandler.cmd = hmp_send_key,
509 },
510
511 STEXI
512 @item sendkey @var{keys}
513 @findex sendkey
514
515 Send @var{keys} to the guest. @var{keys} could be the name of the
516 key or the raw value in hexadecimal format. Use @code{-} to press
517 several keys simultaneously. Example:
518 @example
519 sendkey ctrl-alt-f1
520 @end example
521
522 This command is useful to send keys that your graphical user interface
523 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
524 ETEXI
525
526 {
527 .name = "system_reset",
528 .args_type = "",
529 .params = "",
530 .help = "reset the system",
531 .mhandler.cmd = hmp_system_reset,
532 },
533
534 STEXI
535 @item system_reset
536 @findex system_reset
537
538 Reset the system.
539 ETEXI
540
541 {
542 .name = "system_powerdown",
543 .args_type = "",
544 .params = "",
545 .help = "send system power down event",
546 .mhandler.cmd = hmp_system_powerdown,
547 },
548
549 STEXI
550 @item system_powerdown
551 @findex system_powerdown
552
553 Power down the system (if supported).
554 ETEXI
555
556 {
557 .name = "sum",
558 .args_type = "start:i,size:i",
559 .params = "addr size",
560 .help = "compute the checksum of a memory region",
561 .mhandler.cmd = do_sum,
562 },
563
564 STEXI
565 @item sum @var{addr} @var{size}
566 @findex sum
567
568 Compute the checksum of a memory region.
569 ETEXI
570
571 {
572 .name = "usb_add",
573 .args_type = "devname:s",
574 .params = "device",
575 .help = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",
576 .mhandler.cmd = do_usb_add,
577 },
578
579 STEXI
580 @item usb_add @var{devname}
581 @findex usb_add
582
583 Add the USB device @var{devname}. For details of available devices see
584 @ref{usb_devices}
585 ETEXI
586
587 {
588 .name = "usb_del",
589 .args_type = "devname:s",
590 .params = "device",
591 .help = "remove USB device 'bus.addr'",
592 .mhandler.cmd = do_usb_del,
593 },
594
595 STEXI
596 @item usb_del @var{devname}
597 @findex usb_del
598
599 Remove the USB device @var{devname} from the QEMU virtual USB
600 hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
601 command @code{info usb} to see the devices you can remove.
602 ETEXI
603
604 {
605 .name = "device_add",
606 .args_type = "device:O",
607 .params = "driver[,prop=value][,...]",
608 .help = "add device, like -device on the command line",
609 .user_print = monitor_user_noop,
610 .mhandler.cmd_new = do_device_add,
611 },
612
613 STEXI
614 @item device_add @var{config}
615 @findex device_add
616
617 Add device.
618 ETEXI
619
620 {
621 .name = "device_del",
622 .args_type = "id:s",
623 .params = "device",
624 .help = "remove device",
625 .mhandler.cmd = hmp_device_del,
626 },
627
628 STEXI
629 @item device_del @var{id}
630 @findex device_del
631
632 Remove device @var{id}.
633 ETEXI
634
635 {
636 .name = "cpu",
637 .args_type = "index:i",
638 .params = "index",
639 .help = "set the default CPU",
640 .mhandler.cmd = hmp_cpu,
641 },
642
643 STEXI
644 @item cpu @var{index}
645 @findex cpu
646 Set the default CPU.
647 ETEXI
648
649 {
650 .name = "mouse_move",
651 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
652 .params = "dx dy [dz]",
653 .help = "send mouse move events",
654 .mhandler.cmd = do_mouse_move,
655 },
656
657 STEXI
658 @item mouse_move @var{dx} @var{dy} [@var{dz}]
659 @findex mouse_move
660 Move the active mouse to the specified coordinates @var{dx} @var{dy}
661 with optional scroll axis @var{dz}.
662 ETEXI
663
664 {
665 .name = "mouse_button",
666 .args_type = "button_state:i",
667 .params = "state",
668 .help = "change mouse button state (1=L, 2=M, 4=R)",
669 .mhandler.cmd = do_mouse_button,
670 },
671
672 STEXI
673 @item mouse_button @var{val}
674 @findex mouse_button
675 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
676 ETEXI
677
678 {
679 .name = "mouse_set",
680 .args_type = "index:i",
681 .params = "index",
682 .help = "set which mouse device receives events",
683 .mhandler.cmd = do_mouse_set,
684 },
685
686 STEXI
687 @item mouse_set @var{index}
688 @findex mouse_set
689 Set which mouse device receives events at given @var{index}, index
690 can be obtained with
691 @example
692 info mice
693 @end example
694 ETEXI
695
696 #ifdef HAS_AUDIO
697 {
698 .name = "wavcapture",
699 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?",
700 .params = "path [frequency [bits [channels]]]",
701 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
702 .mhandler.cmd = do_wav_capture,
703 },
704 #endif
705 STEXI
706 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
707 @findex wavcapture
708 Capture audio into @var{filename}. Using sample rate @var{frequency}
709 bits per sample @var{bits} and number of channels @var{channels}.
710
711 Defaults:
712 @itemize @minus
713 @item Sample rate = 44100 Hz - CD quality
714 @item Bits = 16
715 @item Number of channels = 2 - Stereo
716 @end itemize
717 ETEXI
718
719 #ifdef HAS_AUDIO
720 {
721 .name = "stopcapture",
722 .args_type = "n:i",
723 .params = "capture index",
724 .help = "stop capture",
725 .mhandler.cmd = do_stop_capture,
726 },
727 #endif
728 STEXI
729 @item stopcapture @var{index}
730 @findex stopcapture
731 Stop capture with a given @var{index}, index can be obtained with
732 @example
733 info capture
734 @end example
735 ETEXI
736
737 {
738 .name = "memsave",
739 .args_type = "val:l,size:i,filename:s",
740 .params = "addr size file",
741 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
742 .mhandler.cmd = hmp_memsave,
743 },
744
745 STEXI
746 @item memsave @var{addr} @var{size} @var{file}
747 @findex memsave
748 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
749 ETEXI
750
751 {
752 .name = "pmemsave",
753 .args_type = "val:l,size:i,filename:s",
754 .params = "addr size file",
755 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
756 .mhandler.cmd = hmp_pmemsave,
757 },
758
759 STEXI
760 @item pmemsave @var{addr} @var{size} @var{file}
761 @findex pmemsave
762 save to disk physical memory dump starting at @var{addr} of size @var{size}.
763 ETEXI
764
765 {
766 .name = "boot_set",
767 .args_type = "bootdevice:s",
768 .params = "bootdevice",
769 .help = "define new values for the boot device list",
770 .mhandler.cmd = do_boot_set,
771 },
772
773 STEXI
774 @item boot_set @var{bootdevicelist}
775 @findex boot_set
776
777 Define new values for the boot device list. Those values will override
778 the values specified on the command line through the @code{-boot} option.
779
780 The values that can be specified here depend on the machine type, but are
781 the same that can be specified in the @code{-boot} command line option.
782 ETEXI
783
784 #if defined(TARGET_I386)
785 {
786 .name = "nmi",
787 .args_type = "",
788 .params = "",
789 .help = "inject an NMI on all guest's CPUs",
790 .mhandler.cmd = hmp_inject_nmi,
791 },
792 #endif
793 STEXI
794 @item nmi @var{cpu}
795 @findex nmi
796 Inject an NMI on the given CPU (x86 only).
797 ETEXI
798
799 {
800 .name = "migrate",
801 .args_type = "detach:-d,blk:-b,inc:-i,uri:s",
802 .params = "[-d] [-b] [-i] uri",
803 .help = "migrate to URI (using -d to not wait for completion)"
804 "\n\t\t\t -b for migration without shared storage with"
805 " full copy of disk\n\t\t\t -i for migration without "
806 "shared storage with incremental copy of disk "
807 "(base image shared between src and destination)",
808 .mhandler.cmd = hmp_migrate,
809 },
810
811
812 STEXI
813 @item migrate [-d] [-b] [-i] @var{uri}
814 @findex migrate
815 Migrate to @var{uri} (using -d to not wait for completion).
816 -b for migration with full copy of disk
817 -i for migration with incremental copy of disk (base image is shared)
818 ETEXI
819
820 {
821 .name = "migrate_cancel",
822 .args_type = "",
823 .params = "",
824 .help = "cancel the current VM migration",
825 .mhandler.cmd = hmp_migrate_cancel,
826 },
827
828 STEXI
829 @item migrate_cancel
830 @findex migrate_cancel
831 Cancel the current VM migration.
832
833 ETEXI
834
835 {
836 .name = "migrate_set_cache_size",
837 .args_type = "value:o",
838 .params = "value",
839 .help = "set cache size (in bytes) for XBZRLE migrations,"
840 "the cache size will be rounded down to the nearest "
841 "power of 2.\n"
842 "The cache size affects the number of cache misses."
843 "In case of a high cache miss ratio you need to increase"
844 " the cache size",
845 .mhandler.cmd = hmp_migrate_set_cache_size,
846 },
847
848 STEXI
849 @item migrate_set_cache_size @var{value}
850 @findex migrate_set_cache_size
851 Set cache size to @var{value} (in bytes) for xbzrle migrations.
852 ETEXI
853
854 {
855 .name = "migrate_set_speed",
856 .args_type = "value:o",
857 .params = "value",
858 .help = "set maximum speed (in bytes) for migrations. "
859 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
860 .mhandler.cmd = hmp_migrate_set_speed,
861 },
862
863 STEXI
864 @item migrate_set_speed @var{value}
865 @findex migrate_set_speed
866 Set maximum speed to @var{value} (in bytes) for migrations.
867 ETEXI
868
869 {
870 .name = "migrate_set_downtime",
871 .args_type = "value:T",
872 .params = "value",
873 .help = "set maximum tolerated downtime (in seconds) for migrations",
874 .mhandler.cmd = hmp_migrate_set_downtime,
875 },
876
877 STEXI
878 @item migrate_set_downtime @var{second}
879 @findex migrate_set_downtime
880 Set maximum tolerated downtime (in seconds) for migration.
881 ETEXI
882
883 {
884 .name = "migrate_set_capability",
885 .args_type = "capability:s,state:b",
886 .params = "capability state",
887 .help = "Enable/Disable the usage of a capability for migration",
888 .mhandler.cmd = hmp_migrate_set_capability,
889 },
890
891 STEXI
892 @item migrate_set_capability @var{capability} @var{state}
893 @findex migrate_set_capability
894 Enable/Disable the usage of a capability @var{capability} for migration.
895 ETEXI
896
897 {
898 .name = "client_migrate_info",
899 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
900 .params = "protocol hostname port tls-port cert-subject",
901 .help = "send migration info to spice/vnc client",
902 .user_print = monitor_user_noop,
903 .mhandler.cmd_async = client_migrate_info,
904 .flags = MONITOR_CMD_ASYNC,
905 },
906
907 STEXI
908 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
909 @findex client_migrate_info
910 Set the spice/vnc connection info for the migration target. The spice/vnc
911 server will ask the spice/vnc client to automatically reconnect using the
912 new parameters (if specified) once the vm migration finished successfully.
913 ETEXI
914
915 #if defined(CONFIG_HAVE_CORE_DUMP)
916 {
917 .name = "dump-guest-memory",
918 .args_type = "paging:-p,protocol:s,begin:i?,length:i?",
919 .params = "[-p] protocol [begin] [length]",
920 .help = "dump guest memory to file"
921 "\n\t\t\t begin(optional): the starting physical address"
922 "\n\t\t\t length(optional): the memory size, in bytes",
923 .user_print = monitor_user_noop,
924 .mhandler.cmd = hmp_dump_guest_memory,
925 },
926
927
928 STEXI
929 @item dump-guest-memory [-p] @var{protocol} @var{begin} @var{length}
930 @findex dump-guest-memory
931 Dump guest memory to @var{protocol}. The file can be processed with crash or
932 gdb.
933 protocol: destination file(started with "file:") or destination file
934 descriptor (started with "fd:")
935 paging: do paging to get guest's memory mapping
936 begin: the starting physical address. It's optional, and should be
937 specified with length together.
938 length: the memory size, in bytes. It's optional, and should be specified
939 with begin together.
940 ETEXI
941 #endif
942
943 {
944 .name = "snapshot_blkdev",
945 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
946 .params = "[-n] device [new-image-file] [format]",
947 .help = "initiates a live snapshot\n\t\t\t"
948 "of device. If a new image file is specified, the\n\t\t\t"
949 "new image file will become the new root image.\n\t\t\t"
950 "If format is specified, the snapshot file will\n\t\t\t"
951 "be created in that format. Otherwise the\n\t\t\t"
952 "snapshot will be internal! (currently unsupported).\n\t\t\t"
953 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
954 "to reuse the image found in new-image-file, instead of\n\t\t\t"
955 "recreating it from scratch.",
956 .mhandler.cmd = hmp_snapshot_blkdev,
957 },
958
959 STEXI
960 @item snapshot_blkdev
961 @findex snapshot_blkdev
962 Snapshot device, using snapshot file as target if provided
963 ETEXI
964
965 {
966 .name = "drive_add",
967 .args_type = "pci_addr:s,opts:s",
968 .params = "[[<domain>:]<bus>:]<slot>\n"
969 "[file=file][,if=type][,bus=n]\n"
970 "[,unit=m][,media=d][,index=i]\n"
971 "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
972 "[,snapshot=on|off][,cache=on|off]\n"
973 "[,readonly=on|off][,copy-on-read=on|off]",
974 .help = "add drive to PCI storage controller",
975 .mhandler.cmd = drive_hot_add,
976 },
977
978 STEXI
979 @item drive_add
980 @findex drive_add
981 Add drive to PCI storage controller.
982 ETEXI
983
984 #if defined(TARGET_I386)
985 {
986 .name = "pci_add",
987 .args_type = "pci_addr:s,type:s,opts:s?",
988 .params = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...",
989 .help = "hot-add PCI device",
990 .mhandler.cmd = pci_device_hot_add,
991 },
992 #endif
993
994 STEXI
995 @item pci_add
996 @findex pci_add
997 Hot-add PCI device.
998 ETEXI
999
1000 #if defined(TARGET_I386)
1001 {
1002 .name = "pci_del",
1003 .args_type = "pci_addr:s",
1004 .params = "[[<domain>:]<bus>:]<slot>",
1005 .help = "hot remove PCI device",
1006 .mhandler.cmd = do_pci_device_hot_remove,
1007 },
1008 #endif
1009
1010 STEXI
1011 @item pci_del
1012 @findex pci_del
1013 Hot remove PCI device.
1014 ETEXI
1015
1016 {
1017 .name = "pcie_aer_inject_error",
1018 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1019 "id:s,error_status:s,"
1020 "header0:i?,header1:i?,header2:i?,header3:i?,"
1021 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1022 .params = "[-a] [-c] id "
1023 "<error_status> [<tlp header> [<tlp header prefix>]]",
1024 .help = "inject pcie aer error\n\t\t\t"
1025 " -a for advisory non fatal error\n\t\t\t"
1026 " -c for correctable error\n\t\t\t"
1027 "<id> = qdev device id\n\t\t\t"
1028 "<error_status> = error string or 32bit\n\t\t\t"
1029 "<tlb header> = 32bit x 4\n\t\t\t"
1030 "<tlb header prefix> = 32bit x 4",
1031 .user_print = pcie_aer_inject_error_print,
1032 .mhandler.cmd_new = do_pcie_aer_inject_error,
1033 },
1034
1035 STEXI
1036 @item pcie_aer_inject_error
1037 @findex pcie_aer_inject_error
1038 Inject PCIe AER error
1039 ETEXI
1040
1041 {
1042 .name = "host_net_add",
1043 .args_type = "device:s,opts:s?",
1044 .params = "tap|user|socket|vde|dump [options]",
1045 .help = "add host VLAN client",
1046 .mhandler.cmd = net_host_device_add,
1047 },
1048
1049 STEXI
1050 @item host_net_add
1051 @findex host_net_add
1052 Add host VLAN client.
1053 ETEXI
1054
1055 {
1056 .name = "host_net_remove",
1057 .args_type = "vlan_id:i,device:s",
1058 .params = "vlan_id name",
1059 .help = "remove host VLAN client",
1060 .mhandler.cmd = net_host_device_remove,
1061 },
1062
1063 STEXI
1064 @item host_net_remove
1065 @findex host_net_remove
1066 Remove host VLAN client.
1067 ETEXI
1068
1069 {
1070 .name = "netdev_add",
1071 .args_type = "netdev:O",
1072 .params = "[user|tap|socket],id=str[,prop=value][,...]",
1073 .help = "add host network device",
1074 .mhandler.cmd = hmp_netdev_add,
1075 },
1076
1077 STEXI
1078 @item netdev_add
1079 @findex netdev_add
1080 Add host network device.
1081 ETEXI
1082
1083 {
1084 .name = "netdev_del",
1085 .args_type = "id:s",
1086 .params = "id",
1087 .help = "remove host network device",
1088 .mhandler.cmd = hmp_netdev_del,
1089 },
1090
1091 STEXI
1092 @item netdev_del
1093 @findex netdev_del
1094 Remove host network device.
1095 ETEXI
1096
1097 #ifdef CONFIG_SLIRP
1098 {
1099 .name = "hostfwd_add",
1100 .args_type = "arg1:s,arg2:s?,arg3:s?",
1101 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1102 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1103 .mhandler.cmd = net_slirp_hostfwd_add,
1104 },
1105 #endif
1106 STEXI
1107 @item hostfwd_add
1108 @findex hostfwd_add
1109 Redirect TCP or UDP connections from host to guest (requires -net user).
1110 ETEXI
1111
1112 #ifdef CONFIG_SLIRP
1113 {
1114 .name = "hostfwd_remove",
1115 .args_type = "arg1:s,arg2:s?,arg3:s?",
1116 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
1117 .help = "remove host-to-guest TCP or UDP redirection",
1118 .mhandler.cmd = net_slirp_hostfwd_remove,
1119 },
1120
1121 #endif
1122 STEXI
1123 @item hostfwd_remove
1124 @findex hostfwd_remove
1125 Remove host-to-guest TCP or UDP redirection.
1126 ETEXI
1127
1128 {
1129 .name = "balloon",
1130 .args_type = "value:M",
1131 .params = "target",
1132 .help = "request VM to change its memory allocation (in MB)",
1133 .mhandler.cmd = hmp_balloon,
1134 },
1135
1136 STEXI
1137 @item balloon @var{value}
1138 @findex balloon
1139 Request VM to change its memory allocation to @var{value} (in MB).
1140 ETEXI
1141
1142 {
1143 .name = "set_link",
1144 .args_type = "name:s,up:b",
1145 .params = "name on|off",
1146 .help = "change the link status of a network adapter",
1147 .mhandler.cmd = hmp_set_link,
1148 },
1149
1150 STEXI
1151 @item set_link @var{name} [on|off]
1152 @findex set_link
1153 Switch link @var{name} on (i.e. up) or off (i.e. down).
1154 ETEXI
1155
1156 {
1157 .name = "watchdog_action",
1158 .args_type = "action:s",
1159 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1160 .help = "change watchdog action",
1161 .mhandler.cmd = do_watchdog_action,
1162 },
1163
1164 STEXI
1165 @item watchdog_action
1166 @findex watchdog_action
1167 Change watchdog action.
1168 ETEXI
1169
1170 {
1171 .name = "acl_show",
1172 .args_type = "aclname:s",
1173 .params = "aclname",
1174 .help = "list rules in the access control list",
1175 .mhandler.cmd = do_acl_show,
1176 },
1177
1178 STEXI
1179 @item acl_show @var{aclname}
1180 @findex acl_show
1181 List all the matching rules in the access control list, and the default
1182 policy. There are currently two named access control lists,
1183 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1184 certificate distinguished name, and SASL username respectively.
1185 ETEXI
1186
1187 {
1188 .name = "acl_policy",
1189 .args_type = "aclname:s,policy:s",
1190 .params = "aclname allow|deny",
1191 .help = "set default access control list policy",
1192 .mhandler.cmd = do_acl_policy,
1193 },
1194
1195 STEXI
1196 @item acl_policy @var{aclname} @code{allow|deny}
1197 @findex acl_policy
1198 Set the default access control list policy, used in the event that
1199 none of the explicit rules match. The default policy at startup is
1200 always @code{deny}.
1201 ETEXI
1202
1203 {
1204 .name = "acl_add",
1205 .args_type = "aclname:s,match:s,policy:s,index:i?",
1206 .params = "aclname match allow|deny [index]",
1207 .help = "add a match rule to the access control list",
1208 .mhandler.cmd = do_acl_add,
1209 },
1210
1211 STEXI
1212 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1213 @findex acl_add
1214 Add a match rule to the access control list, allowing or denying access.
1215 The match will normally be an exact username or x509 distinguished name,
1216 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1217 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1218 normally be appended to the end of the ACL, but can be inserted
1219 earlier in the list if the optional @var{index} parameter is supplied.
1220 ETEXI
1221
1222 {
1223 .name = "acl_remove",
1224 .args_type = "aclname:s,match:s",
1225 .params = "aclname match",
1226 .help = "remove a match rule from the access control list",
1227 .mhandler.cmd = do_acl_remove,
1228 },
1229
1230 STEXI
1231 @item acl_remove @var{aclname} @var{match}
1232 @findex acl_remove
1233 Remove the specified match rule from the access control list.
1234 ETEXI
1235
1236 {
1237 .name = "acl_reset",
1238 .args_type = "aclname:s",
1239 .params = "aclname",
1240 .help = "reset the access control list",
1241 .mhandler.cmd = do_acl_reset,
1242 },
1243
1244 STEXI
1245 @item acl_reset @var{aclname}
1246 @findex acl_reset
1247 Remove all matches from the access control list, and set the default
1248 policy back to @code{deny}.
1249 ETEXI
1250
1251 #if defined(TARGET_I386)
1252
1253 {
1254 .name = "mce",
1255 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1256 .params = "[-b] cpu bank status mcgstatus addr misc",
1257 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1258 .mhandler.cmd = do_inject_mce,
1259 },
1260
1261 #endif
1262 STEXI
1263 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1264 @findex mce (x86)
1265 Inject an MCE on the given CPU (x86 only).
1266 ETEXI
1267
1268 {
1269 .name = "getfd",
1270 .args_type = "fdname:s",
1271 .params = "getfd name",
1272 .help = "receive a file descriptor via SCM rights and assign it a name",
1273 .mhandler.cmd = hmp_getfd,
1274 },
1275
1276 STEXI
1277 @item getfd @var{fdname}
1278 @findex getfd
1279 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1280 mechanism on unix sockets, it is stored using the name @var{fdname} for
1281 later use by other monitor commands.
1282 ETEXI
1283
1284 {
1285 .name = "closefd",
1286 .args_type = "fdname:s",
1287 .params = "closefd name",
1288 .help = "close a file descriptor previously passed via SCM rights",
1289 .mhandler.cmd = hmp_closefd,
1290 },
1291
1292 STEXI
1293 @item closefd @var{fdname}
1294 @findex closefd
1295 Close the file descriptor previously assigned to @var{fdname} using the
1296 @code{getfd} command. This is only needed if the file descriptor was never
1297 used by another monitor command.
1298 ETEXI
1299
1300 {
1301 .name = "block_passwd",
1302 .args_type = "device:B,password:s",
1303 .params = "block_passwd device password",
1304 .help = "set the password of encrypted block devices",
1305 .mhandler.cmd = hmp_block_passwd,
1306 },
1307
1308 STEXI
1309 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1310 @findex block_set_io_throttle
1311 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}
1312 ETEXI
1313
1314 {
1315 .name = "block_set_io_throttle",
1316 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1317 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1318 .help = "change I/O throttle limits for a block drive",
1319 .mhandler.cmd = hmp_block_set_io_throttle,
1320 },
1321
1322 STEXI
1323 @item block_passwd @var{device} @var{password}
1324 @findex block_passwd
1325 Set the encrypted device @var{device} password to @var{password}
1326 ETEXI
1327
1328 {
1329 .name = "set_password",
1330 .args_type = "protocol:s,password:s,connected:s?",
1331 .params = "protocol password action-if-connected",
1332 .help = "set spice/vnc password",
1333 .mhandler.cmd = hmp_set_password,
1334 },
1335
1336 STEXI
1337 @item set_password [ vnc | spice ] password [ action-if-connected ]
1338 @findex set_password
1339
1340 Change spice/vnc password. Use zero to make the password stay valid
1341 forever. @var{action-if-connected} specifies what should happen in
1342 case a connection is established: @var{fail} makes the password change
1343 fail. @var{disconnect} changes the password and disconnects the
1344 client. @var{keep} changes the password and keeps the connection up.
1345 @var{keep} is the default.
1346 ETEXI
1347
1348 {
1349 .name = "expire_password",
1350 .args_type = "protocol:s,time:s",
1351 .params = "protocol time",
1352 .help = "set spice/vnc password expire-time",
1353 .mhandler.cmd = hmp_expire_password,
1354 },
1355
1356 STEXI
1357 @item expire_password [ vnc | spice ] expire-time
1358 @findex expire_password
1359
1360 Specify when a password for spice/vnc becomes
1361 invalid. @var{expire-time} accepts:
1362
1363 @table @var
1364 @item now
1365 Invalidate password instantly.
1366
1367 @item never
1368 Password stays valid forever.
1369
1370 @item +nsec
1371 Password stays valid for @var{nsec} seconds starting now.
1372
1373 @item nsec
1374 Password is invalidated at the given time. @var{nsec} are the seconds
1375 passed since 1970, i.e. unix epoch.
1376
1377 @end table
1378 ETEXI
1379
1380 {
1381 .name = "info",
1382 .args_type = "item:s?",
1383 .params = "[subcommand]",
1384 .help = "show various information about the system state",
1385 .mhandler.cmd = do_info,
1386 },
1387
1388 STEXI
1389 @item info @var{subcommand}
1390 @findex info
1391 Show various information about the system state.
1392
1393 @table @option
1394 @item info version
1395 show the version of QEMU
1396 @item info network
1397 show the various VLANs and the associated devices
1398 @item info chardev
1399 show the character devices
1400 @item info block
1401 show the block devices
1402 @item info blockstats
1403 show block device statistics
1404 @item info registers
1405 show the cpu registers
1406 @item info cpus
1407 show infos for each CPU
1408 @item info history
1409 show the command line history
1410 @item info irq
1411 show the interrupts statistics (if available)
1412 @item info pic
1413 show i8259 (PIC) state
1414 @item info pci
1415 show emulated PCI device info
1416 @item info tlb
1417 show virtual to physical memory mappings (i386, SH4, SPARC, PPC, and Xtensa only)
1418 @item info mem
1419 show the active virtual memory mappings (i386 only)
1420 @item info jit
1421 show dynamic compiler info
1422 @item info numa
1423 show NUMA information
1424 @item info kvm
1425 show KVM information
1426 @item info usb
1427 show USB devices plugged on the virtual USB hub
1428 @item info usbhost
1429 show all USB host devices
1430 @item info profile
1431 show profiling information
1432 @item info capture
1433 show information about active capturing
1434 @item info snapshots
1435 show list of VM snapshots
1436 @item info status
1437 show the current VM status (running|paused)
1438 @item info pcmcia
1439 show guest PCMCIA status
1440 @item info mice
1441 show which guest mouse is receiving events
1442 @item info vnc
1443 show the vnc server status
1444 @item info name
1445 show the current VM name
1446 @item info uuid
1447 show the current VM UUID
1448 @item info cpustats
1449 show CPU statistics
1450 @item info usernet
1451 show user network stack connection states
1452 @item info migrate
1453 show migration status
1454 @item info migrate_capabilities
1455 show current migration capabilities
1456 @item info migrate_cache_size
1457 show current migration XBZRLE cache size
1458 @item info balloon
1459 show balloon information
1460 @item info qtree
1461 show device tree
1462 @item info qdm
1463 show qdev device model list
1464 @item info roms
1465 show roms
1466 @end table
1467 ETEXI
1468
1469 #ifdef CONFIG_TRACE_SIMPLE
1470 STEXI
1471 @item info trace
1472 show contents of trace buffer
1473 ETEXI
1474 #endif
1475
1476 STEXI
1477 @item info trace-events
1478 show available trace events and their state
1479 ETEXI
1480
1481 STEXI
1482 @end table
1483 ETEXI