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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 If the backing file is smaller than the snapshot, then the backing file will be
39 resized to be the same size as the snapshot. If the snapshot is smaller than
40 the backing file, the backing file will not be truncated. If you want the
41 backing file to match the size of the smaller snapshot, you can safely truncate
42 it yourself once the commit operation successfully completes.
43 ETEXI
44
45 {
46 .name = "q|quit",
47 .args_type = "",
48 .params = "",
49 .help = "quit the emulator",
50 .user_print = monitor_user_noop,
51 .mhandler.cmd = hmp_quit,
52 },
53
54 STEXI
55 @item q or quit
56 @findex quit
57 Quit the emulator.
58 ETEXI
59
60 {
61 .name = "block_resize",
62 .args_type = "device:B,size:o",
63 .params = "device size",
64 .help = "resize a block image",
65 .mhandler.cmd = hmp_block_resize,
66 },
67
68 STEXI
69 @item block_resize
70 @findex block_resize
71 Resize a block image while a guest is running. Usually requires guest
72 action to see the updated size. Resize to a lower size is supported,
73 but should be used with extreme caution. Note that this command only
74 resizes image files, it can not resize block devices like LVM volumes.
75 ETEXI
76
77 {
78 .name = "block_stream",
79 .args_type = "device:B,speed:o?,base:s?",
80 .params = "device [speed [base]]",
81 .help = "copy data from a backing file into a block device",
82 .mhandler.cmd = hmp_block_stream,
83 },
84
85 STEXI
86 @item block_stream
87 @findex block_stream
88 Copy data from a backing file into a block device.
89 ETEXI
90
91 {
92 .name = "block_job_set_speed",
93 .args_type = "device:B,speed:o",
94 .params = "device speed",
95 .help = "set maximum speed for a background block operation",
96 .mhandler.cmd = hmp_block_job_set_speed,
97 },
98
99 STEXI
100 @item block_job_set_speed
101 @findex block_job_set_speed
102 Set maximum speed for a background block operation.
103 ETEXI
104
105 {
106 .name = "block_job_cancel",
107 .args_type = "force:-f,device:B",
108 .params = "[-f] device",
109 .help = "stop an active background block operation (use -f"
110 "\n\t\t\t if the operation is currently paused)",
111 .mhandler.cmd = hmp_block_job_cancel,
112 },
113
114 STEXI
115 @item block_job_cancel
116 @findex block_job_cancel
117 Stop an active background block operation (streaming, mirroring).
118 ETEXI
119
120 {
121 .name = "block_job_complete",
122 .args_type = "device:B",
123 .params = "device",
124 .help = "stop an active background block operation",
125 .mhandler.cmd = hmp_block_job_complete,
126 },
127
128 STEXI
129 @item block_job_complete
130 @findex block_job_complete
131 Manually trigger completion of an active background block operation.
132 For mirroring, this will switch the device to the destination path.
133 ETEXI
134
135 {
136 .name = "block_job_pause",
137 .args_type = "device:B",
138 .params = "device",
139 .help = "pause an active background block operation",
140 .mhandler.cmd = hmp_block_job_pause,
141 },
142
143 STEXI
144 @item block_job_pause
145 @findex block_job_pause
146 Pause an active block streaming operation.
147 ETEXI
148
149 {
150 .name = "block_job_resume",
151 .args_type = "device:B",
152 .params = "device",
153 .help = "resume a paused background block operation",
154 .mhandler.cmd = hmp_block_job_resume,
155 },
156
157 STEXI
158 @item block_job_resume
159 @findex block_job_resume
160 Resume a paused block streaming operation.
161 ETEXI
162
163 {
164 .name = "eject",
165 .args_type = "force:-f,device:B",
166 .params = "[-f] device",
167 .help = "eject a removable medium (use -f to force it)",
168 .mhandler.cmd = hmp_eject,
169 },
170
171 STEXI
172 @item eject [-f] @var{device}
173 @findex eject
174 Eject a removable medium (use -f to force it).
175 ETEXI
176
177 {
178 .name = "drive_del",
179 .args_type = "id:s",
180 .params = "device",
181 .help = "remove host block device",
182 .user_print = monitor_user_noop,
183 .mhandler.cmd_new = do_drive_del,
184 },
185
186 STEXI
187 @item drive_del @var{device}
188 @findex drive_del
189 Remove host block device. The result is that guest generated IO is no longer
190 submitted against the host device underlying the disk. Once a drive has
191 been deleted, the QEMU Block layer returns -EIO which results in IO
192 errors in the guest for applications that are reading/writing to the device.
193 These errors are always reported to the guest, regardless of the drive's error
194 actions (drive options rerror, werror).
195 ETEXI
196
197 {
198 .name = "change",
199 .args_type = "device:B,target:F,arg:s?",
200 .params = "device filename [format]",
201 .help = "change a removable medium, optional format",
202 .mhandler.cmd = hmp_change,
203 },
204
205 STEXI
206 @item change @var{device} @var{setting}
207 @findex change
208
209 Change the configuration of a device.
210
211 @table @option
212 @item change @var{diskdevice} @var{filename} [@var{format}]
213 Change the medium for a removable disk device to point to @var{filename}. eg
214
215 @example
216 (qemu) change ide1-cd0 /path/to/some.iso
217 @end example
218
219 @var{format} is optional.
220
221 @item change vnc @var{display},@var{options}
222 Change the configuration of the VNC server. The valid syntax for @var{display}
223 and @var{options} are described at @ref{sec_invocation}. eg
224
225 @example
226 (qemu) change vnc localhost:1
227 @end example
228
229 @item change vnc password [@var{password}]
230
231 Change the password associated with the VNC server. If the new password is not
232 supplied, the monitor will prompt for it to be entered. VNC passwords are only
233 significant up to 8 letters. eg
234
235 @example
236 (qemu) change vnc password
237 Password: ********
238 @end example
239
240 @end table
241 ETEXI
242
243 {
244 .name = "screendump",
245 .args_type = "filename:F",
246 .params = "filename",
247 .help = "save screen into PPM image 'filename'",
248 .mhandler.cmd = hmp_screen_dump,
249 },
250
251 STEXI
252 @item screendump @var{filename}
253 @findex screendump
254 Save screen into PPM image @var{filename}.
255 ETEXI
256
257 {
258 .name = "logfile",
259 .args_type = "filename:F",
260 .params = "filename",
261 .help = "output logs to 'filename'",
262 .mhandler.cmd = do_logfile,
263 },
264
265 STEXI
266 @item logfile @var{filename}
267 @findex logfile
268 Output logs to @var{filename}.
269 ETEXI
270
271 {
272 .name = "trace-event",
273 .args_type = "name:s,option:b",
274 .params = "name on|off",
275 .help = "changes status of a specific trace event",
276 .mhandler.cmd = do_trace_event_set_state,
277 },
278
279 STEXI
280 @item trace-event
281 @findex trace-event
282 changes status of a trace event
283 ETEXI
284
285 #if defined(CONFIG_TRACE_SIMPLE)
286 {
287 .name = "trace-file",
288 .args_type = "op:s?,arg:F?",
289 .params = "on|off|flush|set [arg]",
290 .help = "open, close, or flush trace file, or set a new file name",
291 .mhandler.cmd = do_trace_file,
292 },
293
294 STEXI
295 @item trace-file on|off|flush
296 @findex trace-file
297 Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed.
298 ETEXI
299 #endif
300
301 {
302 .name = "log",
303 .args_type = "items:s",
304 .params = "item1[,...]",
305 .help = "activate logging of the specified items",
306 .mhandler.cmd = do_log,
307 },
308
309 STEXI
310 @item log @var{item1}[,...]
311 @findex log
312 Activate logging of the specified items.
313 ETEXI
314
315 {
316 .name = "savevm",
317 .args_type = "name:s?",
318 .params = "[tag|id]",
319 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
320 .mhandler.cmd = do_savevm,
321 },
322
323 STEXI
324 @item savevm [@var{tag}|@var{id}]
325 @findex savevm
326 Create a snapshot of the whole virtual machine. If @var{tag} is
327 provided, it is used as human readable identifier. If there is already
328 a snapshot with the same tag or ID, it is replaced. More info at
329 @ref{vm_snapshots}.
330 ETEXI
331
332 {
333 .name = "loadvm",
334 .args_type = "name:s",
335 .params = "tag|id",
336 .help = "restore a VM snapshot from its tag or id",
337 .mhandler.cmd = do_loadvm,
338 },
339
340 STEXI
341 @item loadvm @var{tag}|@var{id}
342 @findex loadvm
343 Set the whole virtual machine to the snapshot identified by the tag
344 @var{tag} or the unique snapshot ID @var{id}.
345 ETEXI
346
347 {
348 .name = "delvm",
349 .args_type = "name:s",
350 .params = "tag|id",
351 .help = "delete a VM snapshot from its tag or id",
352 .mhandler.cmd = do_delvm,
353 },
354
355 STEXI
356 @item delvm @var{tag}|@var{id}
357 @findex delvm
358 Delete the snapshot identified by @var{tag} or @var{id}.
359 ETEXI
360
361 {
362 .name = "singlestep",
363 .args_type = "option:s?",
364 .params = "[on|off]",
365 .help = "run emulation in singlestep mode or switch to normal mode",
366 .mhandler.cmd = do_singlestep,
367 },
368
369 STEXI
370 @item singlestep [off]
371 @findex singlestep
372 Run the emulation in single step mode.
373 If called with option off, the emulation returns to normal mode.
374 ETEXI
375
376 {
377 .name = "stop",
378 .args_type = "",
379 .params = "",
380 .help = "stop emulation",
381 .mhandler.cmd = hmp_stop,
382 },
383
384 STEXI
385 @item stop
386 @findex stop
387 Stop emulation.
388 ETEXI
389
390 {
391 .name = "c|cont",
392 .args_type = "",
393 .params = "",
394 .help = "resume emulation",
395 .mhandler.cmd = hmp_cont,
396 },
397
398 STEXI
399 @item c or cont
400 @findex cont
401 Resume emulation.
402 ETEXI
403
404 {
405 .name = "system_wakeup",
406 .args_type = "",
407 .params = "",
408 .help = "wakeup guest from suspend",
409 .mhandler.cmd = hmp_system_wakeup,
410 },
411
412 STEXI
413 @item system_wakeup
414 @findex system_wakeup
415 Wakeup guest from suspend.
416 ETEXI
417
418 {
419 .name = "gdbserver",
420 .args_type = "device:s?",
421 .params = "[device]",
422 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
423 .mhandler.cmd = do_gdbserver,
424 },
425
426 STEXI
427 @item gdbserver [@var{port}]
428 @findex gdbserver
429 Start gdbserver session (default @var{port}=1234)
430 ETEXI
431
432 {
433 .name = "x",
434 .args_type = "fmt:/,addr:l",
435 .params = "/fmt addr",
436 .help = "virtual memory dump starting at 'addr'",
437 .mhandler.cmd = do_memory_dump,
438 },
439
440 STEXI
441 @item x/fmt @var{addr}
442 @findex x
443 Virtual memory dump starting at @var{addr}.
444 ETEXI
445
446 {
447 .name = "xp",
448 .args_type = "fmt:/,addr:l",
449 .params = "/fmt addr",
450 .help = "physical memory dump starting at 'addr'",
451 .mhandler.cmd = do_physical_memory_dump,
452 },
453
454 STEXI
455 @item xp /@var{fmt} @var{addr}
456 @findex xp
457 Physical memory dump starting at @var{addr}.
458
459 @var{fmt} is a format which tells the command how to format the
460 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
461
462 @table @var
463 @item count
464 is the number of items to be dumped.
465
466 @item format
467 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
468 c (char) or i (asm instruction).
469
470 @item size
471 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
472 @code{h} or @code{w} can be specified with the @code{i} format to
473 respectively select 16 or 32 bit code instruction size.
474
475 @end table
476
477 Examples:
478 @itemize
479 @item
480 Dump 10 instructions at the current instruction pointer:
481 @example
482 (qemu) x/10i $eip
483 0x90107063: ret
484 0x90107064: sti
485 0x90107065: lea 0x0(%esi,1),%esi
486 0x90107069: lea 0x0(%edi,1),%edi
487 0x90107070: ret
488 0x90107071: jmp 0x90107080
489 0x90107073: nop
490 0x90107074: nop
491 0x90107075: nop
492 0x90107076: nop
493 @end example
494
495 @item
496 Dump 80 16 bit values at the start of the video memory.
497 @smallexample
498 (qemu) xp/80hx 0xb8000
499 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
500 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
501 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
502 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
503 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
504 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
505 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
506 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
507 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
508 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
509 @end smallexample
510 @end itemize
511 ETEXI
512
513 {
514 .name = "p|print",
515 .args_type = "fmt:/,val:l",
516 .params = "/fmt expr",
517 .help = "print expression value (use $reg for CPU register access)",
518 .mhandler.cmd = do_print,
519 },
520
521 STEXI
522 @item p or print/@var{fmt} @var{expr}
523 @findex print
524
525 Print expression value. Only the @var{format} part of @var{fmt} is
526 used.
527 ETEXI
528
529 {
530 .name = "i",
531 .args_type = "fmt:/,addr:i,index:i.",
532 .params = "/fmt addr",
533 .help = "I/O port read",
534 .mhandler.cmd = do_ioport_read,
535 },
536
537 STEXI
538 Read I/O port.
539 ETEXI
540
541 {
542 .name = "o",
543 .args_type = "fmt:/,addr:i,val:i",
544 .params = "/fmt addr value",
545 .help = "I/O port write",
546 .mhandler.cmd = do_ioport_write,
547 },
548
549 STEXI
550 Write to I/O port.
551 ETEXI
552
553 {
554 .name = "sendkey",
555 .args_type = "keys:s,hold-time:i?",
556 .params = "keys [hold_ms]",
557 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
558 .mhandler.cmd = hmp_send_key,
559 },
560
561 STEXI
562 @item sendkey @var{keys}
563 @findex sendkey
564
565 Send @var{keys} to the guest. @var{keys} could be the name of the
566 key or the raw value in hexadecimal format. Use @code{-} to press
567 several keys simultaneously. Example:
568 @example
569 sendkey ctrl-alt-f1
570 @end example
571
572 This command is useful to send keys that your graphical user interface
573 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
574 ETEXI
575
576 {
577 .name = "system_reset",
578 .args_type = "",
579 .params = "",
580 .help = "reset the system",
581 .mhandler.cmd = hmp_system_reset,
582 },
583
584 STEXI
585 @item system_reset
586 @findex system_reset
587
588 Reset the system.
589 ETEXI
590
591 {
592 .name = "system_powerdown",
593 .args_type = "",
594 .params = "",
595 .help = "send system power down event",
596 .mhandler.cmd = hmp_system_powerdown,
597 },
598
599 STEXI
600 @item system_powerdown
601 @findex system_powerdown
602
603 Power down the system (if supported).
604 ETEXI
605
606 {
607 .name = "sum",
608 .args_type = "start:i,size:i",
609 .params = "addr size",
610 .help = "compute the checksum of a memory region",
611 .mhandler.cmd = do_sum,
612 },
613
614 STEXI
615 @item sum @var{addr} @var{size}
616 @findex sum
617
618 Compute the checksum of a memory region.
619 ETEXI
620
621 {
622 .name = "usb_add",
623 .args_type = "devname:s",
624 .params = "device",
625 .help = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",
626 .mhandler.cmd = do_usb_add,
627 },
628
629 STEXI
630 @item usb_add @var{devname}
631 @findex usb_add
632
633 Add the USB device @var{devname}. For details of available devices see
634 @ref{usb_devices}
635 ETEXI
636
637 {
638 .name = "usb_del",
639 .args_type = "devname:s",
640 .params = "device",
641 .help = "remove USB device 'bus.addr'",
642 .mhandler.cmd = do_usb_del,
643 },
644
645 STEXI
646 @item usb_del @var{devname}
647 @findex usb_del
648
649 Remove the USB device @var{devname} from the QEMU virtual USB
650 hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
651 command @code{info usb} to see the devices you can remove.
652 ETEXI
653
654 {
655 .name = "device_add",
656 .args_type = "device:O",
657 .params = "driver[,prop=value][,...]",
658 .help = "add device, like -device on the command line",
659 .user_print = monitor_user_noop,
660 .mhandler.cmd_new = do_device_add,
661 },
662
663 STEXI
664 @item device_add @var{config}
665 @findex device_add
666
667 Add device.
668 ETEXI
669
670 {
671 .name = "device_del",
672 .args_type = "id:s",
673 .params = "device",
674 .help = "remove device",
675 .mhandler.cmd = hmp_device_del,
676 },
677
678 STEXI
679 @item device_del @var{id}
680 @findex device_del
681
682 Remove device @var{id}.
683 ETEXI
684
685 {
686 .name = "cpu",
687 .args_type = "index:i",
688 .params = "index",
689 .help = "set the default CPU",
690 .mhandler.cmd = hmp_cpu,
691 },
692
693 STEXI
694 @item cpu @var{index}
695 @findex cpu
696 Set the default CPU.
697 ETEXI
698
699 {
700 .name = "mouse_move",
701 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
702 .params = "dx dy [dz]",
703 .help = "send mouse move events",
704 .mhandler.cmd = do_mouse_move,
705 },
706
707 STEXI
708 @item mouse_move @var{dx} @var{dy} [@var{dz}]
709 @findex mouse_move
710 Move the active mouse to the specified coordinates @var{dx} @var{dy}
711 with optional scroll axis @var{dz}.
712 ETEXI
713
714 {
715 .name = "mouse_button",
716 .args_type = "button_state:i",
717 .params = "state",
718 .help = "change mouse button state (1=L, 2=M, 4=R)",
719 .mhandler.cmd = do_mouse_button,
720 },
721
722 STEXI
723 @item mouse_button @var{val}
724 @findex mouse_button
725 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
726 ETEXI
727
728 {
729 .name = "mouse_set",
730 .args_type = "index:i",
731 .params = "index",
732 .help = "set which mouse device receives events",
733 .mhandler.cmd = do_mouse_set,
734 },
735
736 STEXI
737 @item mouse_set @var{index}
738 @findex mouse_set
739 Set which mouse device receives events at given @var{index}, index
740 can be obtained with
741 @example
742 info mice
743 @end example
744 ETEXI
745
746 {
747 .name = "wavcapture",
748 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?",
749 .params = "path [frequency [bits [channels]]]",
750 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
751 .mhandler.cmd = do_wav_capture,
752 },
753 STEXI
754 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
755 @findex wavcapture
756 Capture audio into @var{filename}. Using sample rate @var{frequency}
757 bits per sample @var{bits} and number of channels @var{channels}.
758
759 Defaults:
760 @itemize @minus
761 @item Sample rate = 44100 Hz - CD quality
762 @item Bits = 16
763 @item Number of channels = 2 - Stereo
764 @end itemize
765 ETEXI
766
767 {
768 .name = "stopcapture",
769 .args_type = "n:i",
770 .params = "capture index",
771 .help = "stop capture",
772 .mhandler.cmd = do_stop_capture,
773 },
774 STEXI
775 @item stopcapture @var{index}
776 @findex stopcapture
777 Stop capture with a given @var{index}, index can be obtained with
778 @example
779 info capture
780 @end example
781 ETEXI
782
783 {
784 .name = "memsave",
785 .args_type = "val:l,size:i,filename:s",
786 .params = "addr size file",
787 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
788 .mhandler.cmd = hmp_memsave,
789 },
790
791 STEXI
792 @item memsave @var{addr} @var{size} @var{file}
793 @findex memsave
794 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
795 ETEXI
796
797 {
798 .name = "pmemsave",
799 .args_type = "val:l,size:i,filename:s",
800 .params = "addr size file",
801 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
802 .mhandler.cmd = hmp_pmemsave,
803 },
804
805 STEXI
806 @item pmemsave @var{addr} @var{size} @var{file}
807 @findex pmemsave
808 save to disk physical memory dump starting at @var{addr} of size @var{size}.
809 ETEXI
810
811 {
812 .name = "boot_set",
813 .args_type = "bootdevice:s",
814 .params = "bootdevice",
815 .help = "define new values for the boot device list",
816 .mhandler.cmd = do_boot_set,
817 },
818
819 STEXI
820 @item boot_set @var{bootdevicelist}
821 @findex boot_set
822
823 Define new values for the boot device list. Those values will override
824 the values specified on the command line through the @code{-boot} option.
825
826 The values that can be specified here depend on the machine type, but are
827 the same that can be specified in the @code{-boot} command line option.
828 ETEXI
829
830 #if defined(TARGET_I386) || defined(TARGET_S390X)
831 {
832 .name = "nmi",
833 .args_type = "",
834 .params = "",
835 .help = "inject an NMI on all guest's CPUs",
836 .mhandler.cmd = hmp_inject_nmi,
837 },
838 #endif
839 STEXI
840 @item nmi @var{cpu}
841 @findex nmi
842 Inject an NMI (x86) or RESTART (s390x) on the given CPU.
843
844 ETEXI
845
846 {
847 .name = "ringbuf_write",
848 .args_type = "device:s,data:s",
849 .params = "device data",
850 .help = "Write to a ring buffer character device",
851 .mhandler.cmd = hmp_ringbuf_write,
852 },
853
854 STEXI
855 @item ringbuf_write @var{device} @var{data}
856 @findex ringbuf_write
857 Write @var{data} to ring buffer character device @var{device}.
858 @var{data} must be a UTF-8 string.
859
860 ETEXI
861
862 {
863 .name = "ringbuf_read",
864 .args_type = "device:s,size:i",
865 .params = "device size",
866 .help = "Read from a ring buffer character device",
867 .mhandler.cmd = hmp_ringbuf_read,
868 },
869
870 STEXI
871 @item ringbuf_read @var{device}
872 @findex ringbuf_read
873 Read and print up to @var{size} bytes from ring buffer character
874 device @var{device}.
875 Certain non-printable characters are printed \uXXXX, where XXXX is the
876 character code in hexadecimal. Character \ is printed \\.
877 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
878 NUL characters, after the ring buffer lost data, and when reading
879 stops because the size limit is reached.
880
881 ETEXI
882
883 {
884 .name = "migrate",
885 .args_type = "detach:-d,blk:-b,inc:-i,uri:s",
886 .params = "[-d] [-b] [-i] uri",
887 .help = "migrate to URI (using -d to not wait for completion)"
888 "\n\t\t\t -b for migration without shared storage with"
889 " full copy of disk\n\t\t\t -i for migration without "
890 "shared storage with incremental copy of disk "
891 "(base image shared between src and destination)",
892 .mhandler.cmd = hmp_migrate,
893 },
894
895
896 STEXI
897 @item migrate [-d] [-b] [-i] @var{uri}
898 @findex migrate
899 Migrate to @var{uri} (using -d to not wait for completion).
900 -b for migration with full copy of disk
901 -i for migration with incremental copy of disk (base image is shared)
902 ETEXI
903
904 {
905 .name = "migrate_cancel",
906 .args_type = "",
907 .params = "",
908 .help = "cancel the current VM migration",
909 .mhandler.cmd = hmp_migrate_cancel,
910 },
911
912 STEXI
913 @item migrate_cancel
914 @findex migrate_cancel
915 Cancel the current VM migration.
916
917 ETEXI
918
919 {
920 .name = "migrate_set_cache_size",
921 .args_type = "value:o",
922 .params = "value",
923 .help = "set cache size (in bytes) for XBZRLE migrations,"
924 "the cache size will be rounded down to the nearest "
925 "power of 2.\n"
926 "The cache size affects the number of cache misses."
927 "In case of a high cache miss ratio you need to increase"
928 " the cache size",
929 .mhandler.cmd = hmp_migrate_set_cache_size,
930 },
931
932 STEXI
933 @item migrate_set_cache_size @var{value}
934 @findex migrate_set_cache_size
935 Set cache size to @var{value} (in bytes) for xbzrle migrations.
936 ETEXI
937
938 {
939 .name = "migrate_set_speed",
940 .args_type = "value:o",
941 .params = "value",
942 .help = "set maximum speed (in bytes) for migrations. "
943 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
944 .mhandler.cmd = hmp_migrate_set_speed,
945 },
946
947 STEXI
948 @item migrate_set_speed @var{value}
949 @findex migrate_set_speed
950 Set maximum speed to @var{value} (in bytes) for migrations.
951 ETEXI
952
953 {
954 .name = "migrate_set_downtime",
955 .args_type = "value:T",
956 .params = "value",
957 .help = "set maximum tolerated downtime (in seconds) for migrations",
958 .mhandler.cmd = hmp_migrate_set_downtime,
959 },
960
961 STEXI
962 @item migrate_set_downtime @var{second}
963 @findex migrate_set_downtime
964 Set maximum tolerated downtime (in seconds) for migration.
965 ETEXI
966
967 {
968 .name = "migrate_set_capability",
969 .args_type = "capability:s,state:b",
970 .params = "capability state",
971 .help = "Enable/Disable the usage of a capability for migration",
972 .mhandler.cmd = hmp_migrate_set_capability,
973 },
974
975 STEXI
976 @item migrate_set_capability @var{capability} @var{state}
977 @findex migrate_set_capability
978 Enable/Disable the usage of a capability @var{capability} for migration.
979 ETEXI
980
981 {
982 .name = "client_migrate_info",
983 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
984 .params = "protocol hostname port tls-port cert-subject",
985 .help = "send migration info to spice/vnc client",
986 .user_print = monitor_user_noop,
987 .mhandler.cmd_async = client_migrate_info,
988 .flags = MONITOR_CMD_ASYNC,
989 },
990
991 STEXI
992 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
993 @findex client_migrate_info
994 Set the spice/vnc connection info for the migration target. The spice/vnc
995 server will ask the spice/vnc client to automatically reconnect using the
996 new parameters (if specified) once the vm migration finished successfully.
997 ETEXI
998
999 {
1000 .name = "dump-guest-memory",
1001 .args_type = "paging:-p,filename:F,begin:i?,length:i?",
1002 .params = "[-p] filename [begin] [length]",
1003 .help = "dump guest memory to file"
1004 "\n\t\t\t begin(optional): the starting physical address"
1005 "\n\t\t\t length(optional): the memory size, in bytes",
1006 .mhandler.cmd = hmp_dump_guest_memory,
1007 },
1008
1009
1010 STEXI
1011 @item dump-guest-memory [-p] @var{protocol} @var{begin} @var{length}
1012 @findex dump-guest-memory
1013 Dump guest memory to @var{protocol}. The file can be processed with crash or
1014 gdb.
1015 filename: dump file name
1016 paging: do paging to get guest's memory mapping
1017 begin: the starting physical address. It's optional, and should be
1018 specified with length together.
1019 length: the memory size, in bytes. It's optional, and should be specified
1020 with begin together.
1021 ETEXI
1022
1023 {
1024 .name = "snapshot_blkdev",
1025 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1026 .params = "[-n] device [new-image-file] [format]",
1027 .help = "initiates a live snapshot\n\t\t\t"
1028 "of device. If a new image file is specified, the\n\t\t\t"
1029 "new image file will become the new root image.\n\t\t\t"
1030 "If format is specified, the snapshot file will\n\t\t\t"
1031 "be created in that format.\n\t\t\t"
1032 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1033 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1034 "recreating it from scratch.",
1035 .mhandler.cmd = hmp_snapshot_blkdev,
1036 },
1037
1038 STEXI
1039 @item snapshot_blkdev
1040 @findex snapshot_blkdev
1041 Snapshot device, using snapshot file as target if provided
1042 ETEXI
1043
1044 {
1045 .name = "snapshot_blkdev_internal",
1046 .args_type = "device:B,name:s",
1047 .params = "device name",
1048 .help = "take an internal snapshot of device.\n\t\t\t"
1049 "The format of the image used by device must\n\t\t\t"
1050 "support it, such as qcow2.\n\t\t\t",
1051 .mhandler.cmd = hmp_snapshot_blkdev_internal,
1052 },
1053
1054 STEXI
1055 @item snapshot_blkdev_internal
1056 @findex snapshot_blkdev_internal
1057 Take an internal snapshot on device if it support
1058 ETEXI
1059
1060 {
1061 .name = "snapshot_delete_blkdev_internal",
1062 .args_type = "device:B,name:s,id:s?",
1063 .params = "device name [id]",
1064 .help = "delete an internal snapshot of device.\n\t\t\t"
1065 "If id is specified, qemu will try delete\n\t\t\t"
1066 "the snapshot matching both id and name.\n\t\t\t"
1067 "The format of the image used by device must\n\t\t\t"
1068 "support it, such as qcow2.\n\t\t\t",
1069 .mhandler.cmd = hmp_snapshot_delete_blkdev_internal,
1070 },
1071
1072 STEXI
1073 @item snapshot_delete_blkdev_internal
1074 @findex snapshot_delete_blkdev_internal
1075 Delete an internal snapshot on device if it support
1076 ETEXI
1077
1078 {
1079 .name = "drive_mirror",
1080 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1081 .params = "[-n] [-f] device target [format]",
1082 .help = "initiates live storage\n\t\t\t"
1083 "migration for a device. The device's contents are\n\t\t\t"
1084 "copied to the new image file, including data that\n\t\t\t"
1085 "is written after the command is started.\n\t\t\t"
1086 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1087 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1088 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1089 "so that the result does not need a backing file.\n\t\t\t",
1090 .mhandler.cmd = hmp_drive_mirror,
1091 },
1092 STEXI
1093 @item drive_mirror
1094 @findex drive_mirror
1095 Start mirroring a block device's writes to a new destination,
1096 using the specified target.
1097 ETEXI
1098
1099 {
1100 .name = "drive_backup",
1101 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1102 .params = "[-n] [-f] device target [format]",
1103 .help = "initiates a point-in-time\n\t\t\t"
1104 "copy for a device. The device's contents are\n\t\t\t"
1105 "copied to the new image file, excluding data that\n\t\t\t"
1106 "is written after the command is started.\n\t\t\t"
1107 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1108 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1109 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1110 "so that the result does not need a backing file.\n\t\t\t",
1111 .mhandler.cmd = hmp_drive_backup,
1112 },
1113 STEXI
1114 @item drive_backup
1115 @findex drive_backup
1116 Start a point-in-time copy of a block device to a specificed target.
1117 ETEXI
1118
1119 {
1120 .name = "drive_add",
1121 .args_type = "pci_addr:s,opts:s",
1122 .params = "[[<domain>:]<bus>:]<slot>\n"
1123 "[file=file][,if=type][,bus=n]\n"
1124 "[,unit=m][,media=d][,index=i]\n"
1125 "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
1126 "[,snapshot=on|off][,cache=on|off]\n"
1127 "[,readonly=on|off][,copy-on-read=on|off]",
1128 .help = "add drive to PCI storage controller",
1129 .mhandler.cmd = drive_hot_add,
1130 },
1131
1132 STEXI
1133 @item drive_add
1134 @findex drive_add
1135 Add drive to PCI storage controller.
1136 ETEXI
1137
1138 #if defined(CONFIG_PCI_HOTPLUG_OLD)
1139 {
1140 .name = "pci_add",
1141 .args_type = "pci_addr:s,type:s,opts:s?",
1142 .params = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...",
1143 .help = "hot-add PCI device",
1144 .mhandler.cmd = pci_device_hot_add,
1145 },
1146 #endif
1147
1148 STEXI
1149 @item pci_add
1150 @findex pci_add
1151 Hot-add PCI device.
1152 ETEXI
1153
1154 #if defined(CONFIG_PCI_HOTPLUG_OLD)
1155 {
1156 .name = "pci_del",
1157 .args_type = "pci_addr:s",
1158 .params = "[[<domain>:]<bus>:]<slot>",
1159 .help = "hot remove PCI device",
1160 .mhandler.cmd = do_pci_device_hot_remove,
1161 },
1162 #endif
1163
1164 STEXI
1165 @item pci_del
1166 @findex pci_del
1167 Hot remove PCI device.
1168 ETEXI
1169
1170 {
1171 .name = "pcie_aer_inject_error",
1172 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1173 "id:s,error_status:s,"
1174 "header0:i?,header1:i?,header2:i?,header3:i?,"
1175 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1176 .params = "[-a] [-c] id "
1177 "<error_status> [<tlp header> [<tlp header prefix>]]",
1178 .help = "inject pcie aer error\n\t\t\t"
1179 " -a for advisory non fatal error\n\t\t\t"
1180 " -c for correctable error\n\t\t\t"
1181 "<id> = qdev device id\n\t\t\t"
1182 "<error_status> = error string or 32bit\n\t\t\t"
1183 "<tlb header> = 32bit x 4\n\t\t\t"
1184 "<tlb header prefix> = 32bit x 4",
1185 .user_print = pcie_aer_inject_error_print,
1186 .mhandler.cmd_new = do_pcie_aer_inject_error,
1187 },
1188
1189 STEXI
1190 @item pcie_aer_inject_error
1191 @findex pcie_aer_inject_error
1192 Inject PCIe AER error
1193 ETEXI
1194
1195 {
1196 .name = "host_net_add",
1197 .args_type = "device:s,opts:s?",
1198 .params = "tap|user|socket|vde|netmap|dump [options]",
1199 .help = "add host VLAN client",
1200 .mhandler.cmd = net_host_device_add,
1201 },
1202
1203 STEXI
1204 @item host_net_add
1205 @findex host_net_add
1206 Add host VLAN client.
1207 ETEXI
1208
1209 {
1210 .name = "host_net_remove",
1211 .args_type = "vlan_id:i,device:s",
1212 .params = "vlan_id name",
1213 .help = "remove host VLAN client",
1214 .mhandler.cmd = net_host_device_remove,
1215 },
1216
1217 STEXI
1218 @item host_net_remove
1219 @findex host_net_remove
1220 Remove host VLAN client.
1221 ETEXI
1222
1223 {
1224 .name = "netdev_add",
1225 .args_type = "netdev:O",
1226 .params = "[user|tap|socket|hubport|netmap],id=str[,prop=value][,...]",
1227 .help = "add host network device",
1228 .mhandler.cmd = hmp_netdev_add,
1229 },
1230
1231 STEXI
1232 @item netdev_add
1233 @findex netdev_add
1234 Add host network device.
1235 ETEXI
1236
1237 {
1238 .name = "netdev_del",
1239 .args_type = "id:s",
1240 .params = "id",
1241 .help = "remove host network device",
1242 .mhandler.cmd = hmp_netdev_del,
1243 },
1244
1245 STEXI
1246 @item netdev_del
1247 @findex netdev_del
1248 Remove host network device.
1249 ETEXI
1250
1251 {
1252 .name = "object_add",
1253 .args_type = "object:O",
1254 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1255 .help = "create QOM object",
1256 .mhandler.cmd = hmp_object_add,
1257 },
1258
1259 STEXI
1260 @item object_add
1261 @findex object_add
1262 Create QOM object.
1263 ETEXI
1264
1265 {
1266 .name = "object_del",
1267 .args_type = "id:s",
1268 .params = "id",
1269 .help = "destroy QOM object",
1270 .mhandler.cmd = hmp_object_del,
1271 },
1272
1273 STEXI
1274 @item object_del
1275 @findex object_del
1276 Destroy QOM object.
1277 ETEXI
1278
1279 #ifdef CONFIG_SLIRP
1280 {
1281 .name = "hostfwd_add",
1282 .args_type = "arg1:s,arg2:s?,arg3:s?",
1283 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1284 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1285 .mhandler.cmd = net_slirp_hostfwd_add,
1286 },
1287 #endif
1288 STEXI
1289 @item hostfwd_add
1290 @findex hostfwd_add
1291 Redirect TCP or UDP connections from host to guest (requires -net user).
1292 ETEXI
1293
1294 #ifdef CONFIG_SLIRP
1295 {
1296 .name = "hostfwd_remove",
1297 .args_type = "arg1:s,arg2:s?,arg3:s?",
1298 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
1299 .help = "remove host-to-guest TCP or UDP redirection",
1300 .mhandler.cmd = net_slirp_hostfwd_remove,
1301 },
1302
1303 #endif
1304 STEXI
1305 @item hostfwd_remove
1306 @findex hostfwd_remove
1307 Remove host-to-guest TCP or UDP redirection.
1308 ETEXI
1309
1310 {
1311 .name = "balloon",
1312 .args_type = "value:M",
1313 .params = "target",
1314 .help = "request VM to change its memory allocation (in MB)",
1315 .mhandler.cmd = hmp_balloon,
1316 },
1317
1318 STEXI
1319 @item balloon @var{value}
1320 @findex balloon
1321 Request VM to change its memory allocation to @var{value} (in MB).
1322 ETEXI
1323
1324 {
1325 .name = "set_link",
1326 .args_type = "name:s,up:b",
1327 .params = "name on|off",
1328 .help = "change the link status of a network adapter",
1329 .mhandler.cmd = hmp_set_link,
1330 },
1331
1332 STEXI
1333 @item set_link @var{name} [on|off]
1334 @findex set_link
1335 Switch link @var{name} on (i.e. up) or off (i.e. down).
1336 ETEXI
1337
1338 {
1339 .name = "watchdog_action",
1340 .args_type = "action:s",
1341 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1342 .help = "change watchdog action",
1343 .mhandler.cmd = do_watchdog_action,
1344 },
1345
1346 STEXI
1347 @item watchdog_action
1348 @findex watchdog_action
1349 Change watchdog action.
1350 ETEXI
1351
1352 {
1353 .name = "acl_show",
1354 .args_type = "aclname:s",
1355 .params = "aclname",
1356 .help = "list rules in the access control list",
1357 .mhandler.cmd = do_acl_show,
1358 },
1359
1360 STEXI
1361 @item acl_show @var{aclname}
1362 @findex acl_show
1363 List all the matching rules in the access control list, and the default
1364 policy. There are currently two named access control lists,
1365 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1366 certificate distinguished name, and SASL username respectively.
1367 ETEXI
1368
1369 {
1370 .name = "acl_policy",
1371 .args_type = "aclname:s,policy:s",
1372 .params = "aclname allow|deny",
1373 .help = "set default access control list policy",
1374 .mhandler.cmd = do_acl_policy,
1375 },
1376
1377 STEXI
1378 @item acl_policy @var{aclname} @code{allow|deny}
1379 @findex acl_policy
1380 Set the default access control list policy, used in the event that
1381 none of the explicit rules match. The default policy at startup is
1382 always @code{deny}.
1383 ETEXI
1384
1385 {
1386 .name = "acl_add",
1387 .args_type = "aclname:s,match:s,policy:s,index:i?",
1388 .params = "aclname match allow|deny [index]",
1389 .help = "add a match rule to the access control list",
1390 .mhandler.cmd = do_acl_add,
1391 },
1392
1393 STEXI
1394 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1395 @findex acl_add
1396 Add a match rule to the access control list, allowing or denying access.
1397 The match will normally be an exact username or x509 distinguished name,
1398 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1399 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1400 normally be appended to the end of the ACL, but can be inserted
1401 earlier in the list if the optional @var{index} parameter is supplied.
1402 ETEXI
1403
1404 {
1405 .name = "acl_remove",
1406 .args_type = "aclname:s,match:s",
1407 .params = "aclname match",
1408 .help = "remove a match rule from the access control list",
1409 .mhandler.cmd = do_acl_remove,
1410 },
1411
1412 STEXI
1413 @item acl_remove @var{aclname} @var{match}
1414 @findex acl_remove
1415 Remove the specified match rule from the access control list.
1416 ETEXI
1417
1418 {
1419 .name = "acl_reset",
1420 .args_type = "aclname:s",
1421 .params = "aclname",
1422 .help = "reset the access control list",
1423 .mhandler.cmd = do_acl_reset,
1424 },
1425
1426 STEXI
1427 @item acl_reset @var{aclname}
1428 @findex acl_reset
1429 Remove all matches from the access control list, and set the default
1430 policy back to @code{deny}.
1431 ETEXI
1432
1433 {
1434 .name = "nbd_server_start",
1435 .args_type = "all:-a,writable:-w,uri:s",
1436 .params = "nbd_server_start [-a] [-w] host:port",
1437 .help = "serve block devices on the given host and port",
1438 .mhandler.cmd = hmp_nbd_server_start,
1439 },
1440 STEXI
1441 @item nbd_server_start @var{host}:@var{port}
1442 @findex nbd_server_start
1443 Start an NBD server on the given host and/or port. If the @option{-a}
1444 option is included, all of the virtual machine's block devices that
1445 have an inserted media on them are automatically exported; in this case,
1446 the @option{-w} option makes the devices writable too.
1447 ETEXI
1448
1449 {
1450 .name = "nbd_server_add",
1451 .args_type = "writable:-w,device:B",
1452 .params = "nbd_server_add [-w] device",
1453 .help = "export a block device via NBD",
1454 .mhandler.cmd = hmp_nbd_server_add,
1455 },
1456 STEXI
1457 @item nbd_server_add @var{device}
1458 @findex nbd_server_add
1459 Export a block device through QEMU's NBD server, which must be started
1460 beforehand with @command{nbd_server_start}. The @option{-w} option makes the
1461 exported device writable too.
1462 ETEXI
1463
1464 {
1465 .name = "nbd_server_stop",
1466 .args_type = "",
1467 .params = "nbd_server_stop",
1468 .help = "stop serving block devices using the NBD protocol",
1469 .mhandler.cmd = hmp_nbd_server_stop,
1470 },
1471 STEXI
1472 @item nbd_server_stop
1473 @findex nbd_server_stop
1474 Stop the QEMU embedded NBD server.
1475 ETEXI
1476
1477
1478 #if defined(TARGET_I386)
1479
1480 {
1481 .name = "mce",
1482 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1483 .params = "[-b] cpu bank status mcgstatus addr misc",
1484 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1485 .mhandler.cmd = do_inject_mce,
1486 },
1487
1488 #endif
1489 STEXI
1490 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1491 @findex mce (x86)
1492 Inject an MCE on the given CPU (x86 only).
1493 ETEXI
1494
1495 {
1496 .name = "getfd",
1497 .args_type = "fdname:s",
1498 .params = "getfd name",
1499 .help = "receive a file descriptor via SCM rights and assign it a name",
1500 .mhandler.cmd = hmp_getfd,
1501 },
1502
1503 STEXI
1504 @item getfd @var{fdname}
1505 @findex getfd
1506 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1507 mechanism on unix sockets, it is stored using the name @var{fdname} for
1508 later use by other monitor commands.
1509 ETEXI
1510
1511 {
1512 .name = "closefd",
1513 .args_type = "fdname:s",
1514 .params = "closefd name",
1515 .help = "close a file descriptor previously passed via SCM rights",
1516 .mhandler.cmd = hmp_closefd,
1517 },
1518
1519 STEXI
1520 @item closefd @var{fdname}
1521 @findex closefd
1522 Close the file descriptor previously assigned to @var{fdname} using the
1523 @code{getfd} command. This is only needed if the file descriptor was never
1524 used by another monitor command.
1525 ETEXI
1526
1527 {
1528 .name = "block_passwd",
1529 .args_type = "device:B,password:s",
1530 .params = "block_passwd device password",
1531 .help = "set the password of encrypted block devices",
1532 .mhandler.cmd = hmp_block_passwd,
1533 },
1534
1535 STEXI
1536 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1537 @findex block_set_io_throttle
1538 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}
1539 ETEXI
1540
1541 {
1542 .name = "block_set_io_throttle",
1543 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1544 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1545 .help = "change I/O throttle limits for a block drive",
1546 .mhandler.cmd = hmp_block_set_io_throttle,
1547 },
1548
1549 STEXI
1550 @item block_passwd @var{device} @var{password}
1551 @findex block_passwd
1552 Set the encrypted device @var{device} password to @var{password}
1553 ETEXI
1554
1555 {
1556 .name = "set_password",
1557 .args_type = "protocol:s,password:s,connected:s?",
1558 .params = "protocol password action-if-connected",
1559 .help = "set spice/vnc password",
1560 .mhandler.cmd = hmp_set_password,
1561 },
1562
1563 STEXI
1564 @item set_password [ vnc | spice ] password [ action-if-connected ]
1565 @findex set_password
1566
1567 Change spice/vnc password. Use zero to make the password stay valid
1568 forever. @var{action-if-connected} specifies what should happen in
1569 case a connection is established: @var{fail} makes the password change
1570 fail. @var{disconnect} changes the password and disconnects the
1571 client. @var{keep} changes the password and keeps the connection up.
1572 @var{keep} is the default.
1573 ETEXI
1574
1575 {
1576 .name = "expire_password",
1577 .args_type = "protocol:s,time:s",
1578 .params = "protocol time",
1579 .help = "set spice/vnc password expire-time",
1580 .mhandler.cmd = hmp_expire_password,
1581 },
1582
1583 STEXI
1584 @item expire_password [ vnc | spice ] expire-time
1585 @findex expire_password
1586
1587 Specify when a password for spice/vnc becomes
1588 invalid. @var{expire-time} accepts:
1589
1590 @table @var
1591 @item now
1592 Invalidate password instantly.
1593
1594 @item never
1595 Password stays valid forever.
1596
1597 @item +nsec
1598 Password stays valid for @var{nsec} seconds starting now.
1599
1600 @item nsec
1601 Password is invalidated at the given time. @var{nsec} are the seconds
1602 passed since 1970, i.e. unix epoch.
1603
1604 @end table
1605 ETEXI
1606
1607 {
1608 .name = "chardev-add",
1609 .args_type = "args:s",
1610 .params = "args",
1611 .help = "add chardev",
1612 .mhandler.cmd = hmp_chardev_add,
1613 },
1614
1615 STEXI
1616 @item chardev_add args
1617 @findex chardev_add
1618
1619 chardev_add accepts the same parameters as the -chardev command line switch.
1620
1621 ETEXI
1622
1623 {
1624 .name = "chardev-remove",
1625 .args_type = "id:s",
1626 .params = "id",
1627 .help = "remove chardev",
1628 .mhandler.cmd = hmp_chardev_remove,
1629 },
1630
1631 STEXI
1632 @item chardev_remove id
1633 @findex chardev_remove
1634
1635 Removes the chardev @var{id}.
1636
1637 ETEXI
1638
1639 {
1640 .name = "qemu-io",
1641 .args_type = "device:B,command:s",
1642 .params = "[device] \"[command]\"",
1643 .help = "run a qemu-io command on a block device",
1644 .mhandler.cmd = hmp_qemu_io,
1645 },
1646
1647 STEXI
1648 @item qemu-io @var{device} @var{command}
1649 @findex qemu-io
1650
1651 Executes a qemu-io command on the given block device.
1652
1653 ETEXI
1654
1655 {
1656 .name = "cpu-add",
1657 .args_type = "id:i",
1658 .params = "id",
1659 .help = "add cpu",
1660 .mhandler.cmd = hmp_cpu_add,
1661 },
1662
1663 STEXI
1664 @item cpu-add @var{id}
1665 Add CPU with id @var{id}
1666 ETEXI
1667
1668 {
1669 .name = "info",
1670 .args_type = "item:s?",
1671 .params = "[subcommand]",
1672 .help = "show various information about the system state",
1673 .mhandler.cmd = do_info_help,
1674 .sub_table = info_cmds,
1675 },
1676
1677 STEXI
1678 @item info @var{subcommand}
1679 @findex info
1680 Show various information about the system state.
1681
1682 @table @option
1683 @item info version
1684 show the version of QEMU
1685 @item info network
1686 show the various VLANs and the associated devices
1687 @item info chardev
1688 show the character devices
1689 @item info block
1690 show the block devices
1691 @item info blockstats
1692 show block device statistics
1693 @item info registers
1694 show the cpu registers
1695 @item info cpus
1696 show infos for each CPU
1697 @item info history
1698 show the command line history
1699 @item info irq
1700 show the interrupts statistics (if available)
1701 @item info pic
1702 show i8259 (PIC) state
1703 @item info pci
1704 show emulated PCI device info
1705 @item info tlb
1706 show virtual to physical memory mappings (i386, SH4, SPARC, PPC, and Xtensa only)
1707 @item info mem
1708 show the active virtual memory mappings (i386 only)
1709 @item info jit
1710 show dynamic compiler info
1711 @item info numa
1712 show NUMA information
1713 @item info kvm
1714 show KVM information
1715 @item info usb
1716 show USB devices plugged on the virtual USB hub
1717 @item info usbhost
1718 show all USB host devices
1719 @item info profile
1720 show profiling information
1721 @item info capture
1722 show information about active capturing
1723 @item info snapshots
1724 show list of VM snapshots
1725 @item info status
1726 show the current VM status (running|paused)
1727 @item info pcmcia
1728 show guest PCMCIA status
1729 @item info mice
1730 show which guest mouse is receiving events
1731 @item info vnc
1732 show the vnc server status
1733 @item info name
1734 show the current VM name
1735 @item info uuid
1736 show the current VM UUID
1737 @item info cpustats
1738 show CPU statistics
1739 @item info usernet
1740 show user network stack connection states
1741 @item info migrate
1742 show migration status
1743 @item info migrate_capabilities
1744 show current migration capabilities
1745 @item info migrate_cache_size
1746 show current migration XBZRLE cache size
1747 @item info balloon
1748 show balloon information
1749 @item info qtree
1750 show device tree
1751 @item info qdm
1752 show qdev device model list
1753 @item info roms
1754 show roms
1755 @item info tpm
1756 show the TPM device
1757 @end table
1758 ETEXI
1759
1760 STEXI
1761 @item info trace-events
1762 show available trace events and their state
1763 ETEXI
1764
1765 STEXI
1766 @end table
1767 ETEXI