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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 .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 .cmd = hmp_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 .cmd = hmp_quit,
51 },
52
53 STEXI
54 @item q or quit
55 @findex quit
56 Quit the emulator.
57 ETEXI
58
59 {
60 .name = "block_resize",
61 .args_type = "device:B,size:o",
62 .params = "device size",
63 .help = "resize a block image",
64 .cmd = hmp_block_resize,
65 },
66
67 STEXI
68 @item block_resize
69 @findex block_resize
70 Resize a block image while a guest is running. Usually requires guest
71 action to see the updated size. Resize to a lower size is supported,
72 but should be used with extreme caution. Note that this command only
73 resizes image files, it can not resize block devices like LVM volumes.
74 ETEXI
75
76 {
77 .name = "block_stream",
78 .args_type = "device:B,speed:o?,base:s?",
79 .params = "device [speed [base]]",
80 .help = "copy data from a backing file into a block device",
81 .cmd = hmp_block_stream,
82 },
83
84 STEXI
85 @item block_stream
86 @findex block_stream
87 Copy data from a backing file into a block device.
88 ETEXI
89
90 {
91 .name = "block_job_set_speed",
92 .args_type = "device:B,speed:o",
93 .params = "device speed",
94 .help = "set maximum speed for a background block operation",
95 .cmd = hmp_block_job_set_speed,
96 },
97
98 STEXI
99 @item block_job_set_speed
100 @findex block_job_set_speed
101 Set maximum speed for a background block operation.
102 ETEXI
103
104 {
105 .name = "block_job_cancel",
106 .args_type = "force:-f,device:B",
107 .params = "[-f] device",
108 .help = "stop an active background block operation (use -f"
109 "\n\t\t\t if you want to abort the operation immediately"
110 "\n\t\t\t instead of keep running until data is in sync)",
111 .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 .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 .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 .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 .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:B",
180 .params = "device",
181 .help = "remove host block device",
182 .cmd = hmp_drive_del,
183 },
184
185 STEXI
186 @item drive_del @var{device}
187 @findex drive_del
188 Remove host block device. The result is that guest generated IO is no longer
189 submitted against the host device underlying the disk. Once a drive has
190 been deleted, the QEMU Block layer returns -EIO which results in IO
191 errors in the guest for applications that are reading/writing to the device.
192 These errors are always reported to the guest, regardless of the drive's error
193 actions (drive options rerror, werror).
194 ETEXI
195
196 {
197 .name = "change",
198 .args_type = "device:B,target:F,arg:s?,read-only-mode:s?",
199 .params = "device filename [format [read-only-mode]]",
200 .help = "change a removable medium, optional format",
201 .cmd = hmp_change,
202 },
203
204 STEXI
205 @item change @var{device} @var{setting}
206 @findex change
207 Change the configuration of a device.
208
209 @table @option
210 @item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]]
211 Change the medium for a removable disk device to point to @var{filename}. eg
212
213 @example
214 (qemu) change ide1-cd0 /path/to/some.iso
215 @end example
216
217 @var{format} is optional.
218
219 @var{read-only-mode} may be used to change the read-only status of the device.
220 It accepts the following values:
221
222 @table @var
223 @item retain
224 Retains the current status; this is the default.
225
226 @item read-only
227 Makes the device read-only.
228
229 @item read-write
230 Makes the device writable.
231 @end table
232
233 @item change vnc @var{display},@var{options}
234 Change the configuration of the VNC server. The valid syntax for @var{display}
235 and @var{options} are described at @ref{sec_invocation}. eg
236
237 @example
238 (qemu) change vnc localhost:1
239 @end example
240
241 @item change vnc password [@var{password}]
242
243 Change the password associated with the VNC server. If the new password is not
244 supplied, the monitor will prompt for it to be entered. VNC passwords are only
245 significant up to 8 letters. eg
246
247 @example
248 (qemu) change vnc password
249 Password: ********
250 @end example
251
252 @end table
253 ETEXI
254
255 {
256 .name = "screendump",
257 .args_type = "filename:F,device:s?,head:i?",
258 .params = "filename [device [head]]",
259 .help = "save screen from head 'head' of display device 'device' "
260 "into PPM image 'filename'",
261 .cmd = hmp_screendump,
262 },
263
264 STEXI
265 @item screendump @var{filename}
266 @findex screendump
267 Save screen into PPM image @var{filename}.
268 ETEXI
269
270 {
271 .name = "logfile",
272 .args_type = "filename:F",
273 .params = "filename",
274 .help = "output logs to 'filename'",
275 .cmd = hmp_logfile,
276 },
277
278 STEXI
279 @item logfile @var{filename}
280 @findex logfile
281 Output logs to @var{filename}.
282 ETEXI
283
284 {
285 .name = "trace-event",
286 .args_type = "name:s,option:b,vcpu:i?",
287 .params = "name on|off [vcpu]",
288 .help = "changes status of a specific trace event "
289 "(vcpu: vCPU to set, default is all)",
290 .cmd = hmp_trace_event,
291 .command_completion = trace_event_completion,
292 },
293
294 STEXI
295 @item trace-event
296 @findex trace-event
297 changes status of a trace event
298 ETEXI
299
300 #if defined(CONFIG_TRACE_SIMPLE)
301 {
302 .name = "trace-file",
303 .args_type = "op:s?,arg:F?",
304 .params = "on|off|flush|set [arg]",
305 .help = "open, close, or flush trace file, or set a new file name",
306 .cmd = hmp_trace_file,
307 },
308
309 STEXI
310 @item trace-file on|off|flush
311 @findex trace-file
312 Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed.
313 ETEXI
314 #endif
315
316 {
317 .name = "log",
318 .args_type = "items:s",
319 .params = "item1[,...]",
320 .help = "activate logging of the specified items",
321 .cmd = hmp_log,
322 },
323
324 STEXI
325 @item log @var{item1}[,...]
326 @findex log
327 Activate logging of the specified items.
328 ETEXI
329
330 {
331 .name = "savevm",
332 .args_type = "name:s?",
333 .params = "[tag|id]",
334 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
335 .cmd = hmp_savevm,
336 },
337
338 STEXI
339 @item savevm [@var{tag}|@var{id}]
340 @findex savevm
341 Create a snapshot of the whole virtual machine. If @var{tag} is
342 provided, it is used as human readable identifier. If there is already
343 a snapshot with the same tag or ID, it is replaced. More info at
344 @ref{vm_snapshots}.
345 ETEXI
346
347 {
348 .name = "loadvm",
349 .args_type = "name:s",
350 .params = "tag|id",
351 .help = "restore a VM snapshot from its tag or id",
352 .cmd = hmp_loadvm,
353 .command_completion = loadvm_completion,
354 },
355
356 STEXI
357 @item loadvm @var{tag}|@var{id}
358 @findex loadvm
359 Set the whole virtual machine to the snapshot identified by the tag
360 @var{tag} or the unique snapshot ID @var{id}.
361 ETEXI
362
363 {
364 .name = "delvm",
365 .args_type = "name:s",
366 .params = "tag|id",
367 .help = "delete a VM snapshot from its tag or id",
368 .cmd = hmp_delvm,
369 .command_completion = delvm_completion,
370 },
371
372 STEXI
373 @item delvm @var{tag}|@var{id}
374 @findex delvm
375 Delete the snapshot identified by @var{tag} or @var{id}.
376 ETEXI
377
378 {
379 .name = "singlestep",
380 .args_type = "option:s?",
381 .params = "[on|off]",
382 .help = "run emulation in singlestep mode or switch to normal mode",
383 .cmd = hmp_singlestep,
384 },
385
386 STEXI
387 @item singlestep [off]
388 @findex singlestep
389 Run the emulation in single step mode.
390 If called with option off, the emulation returns to normal mode.
391 ETEXI
392
393 {
394 .name = "stop",
395 .args_type = "",
396 .params = "",
397 .help = "stop emulation",
398 .cmd = hmp_stop,
399 },
400
401 STEXI
402 @item stop
403 @findex stop
404 Stop emulation.
405 ETEXI
406
407 {
408 .name = "c|cont",
409 .args_type = "",
410 .params = "",
411 .help = "resume emulation",
412 .cmd = hmp_cont,
413 },
414
415 STEXI
416 @item c or cont
417 @findex cont
418 Resume emulation.
419 ETEXI
420
421 {
422 .name = "system_wakeup",
423 .args_type = "",
424 .params = "",
425 .help = "wakeup guest from suspend",
426 .cmd = hmp_system_wakeup,
427 },
428
429 STEXI
430 @item system_wakeup
431 @findex system_wakeup
432 Wakeup guest from suspend.
433 ETEXI
434
435 {
436 .name = "gdbserver",
437 .args_type = "device:s?",
438 .params = "[device]",
439 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
440 .cmd = hmp_gdbserver,
441 },
442
443 STEXI
444 @item gdbserver [@var{port}]
445 @findex gdbserver
446 Start gdbserver session (default @var{port}=1234)
447 ETEXI
448
449 {
450 .name = "x",
451 .args_type = "fmt:/,addr:l",
452 .params = "/fmt addr",
453 .help = "virtual memory dump starting at 'addr'",
454 .cmd = hmp_memory_dump,
455 },
456
457 STEXI
458 @item x/fmt @var{addr}
459 @findex x
460 Virtual memory dump starting at @var{addr}.
461 ETEXI
462
463 {
464 .name = "xp",
465 .args_type = "fmt:/,addr:l",
466 .params = "/fmt addr",
467 .help = "physical memory dump starting at 'addr'",
468 .cmd = hmp_physical_memory_dump,
469 },
470
471 STEXI
472 @item xp /@var{fmt} @var{addr}
473 @findex xp
474 Physical memory dump starting at @var{addr}.
475
476 @var{fmt} is a format which tells the command how to format the
477 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
478
479 @table @var
480 @item count
481 is the number of items to be dumped.
482
483 @item format
484 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
485 c (char) or i (asm instruction).
486
487 @item size
488 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
489 @code{h} or @code{w} can be specified with the @code{i} format to
490 respectively select 16 or 32 bit code instruction size.
491
492 @end table
493
494 Examples:
495 @itemize
496 @item
497 Dump 10 instructions at the current instruction pointer:
498 @example
499 (qemu) x/10i $eip
500 0x90107063: ret
501 0x90107064: sti
502 0x90107065: lea 0x0(%esi,1),%esi
503 0x90107069: lea 0x0(%edi,1),%edi
504 0x90107070: ret
505 0x90107071: jmp 0x90107080
506 0x90107073: nop
507 0x90107074: nop
508 0x90107075: nop
509 0x90107076: nop
510 @end example
511
512 @item
513 Dump 80 16 bit values at the start of the video memory.
514 @smallexample
515 (qemu) xp/80hx 0xb8000
516 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
517 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
518 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
519 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
520 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
521 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
522 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
523 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
524 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
525 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
526 @end smallexample
527 @end itemize
528 ETEXI
529
530 {
531 .name = "gpa2hva",
532 .args_type = "addr:l",
533 .params = "addr",
534 .help = "print the host virtual address corresponding to a guest physical address",
535 .cmd = hmp_gpa2hva,
536 },
537
538 STEXI
539 @item gpa2hva @var{addr}
540 @findex gpa2hva
541 Print the host virtual address at which the guest's physical address @var{addr}
542 is mapped.
543 ETEXI
544
545 #ifdef CONFIG_LINUX
546 {
547 .name = "gpa2hpa",
548 .args_type = "addr:l",
549 .params = "addr",
550 .help = "print the host physical address corresponding to a guest physical address",
551 .cmd = hmp_gpa2hpa,
552 },
553 #endif
554
555 STEXI
556 @item gpa2hpa @var{addr}
557 @findex gpa2hpa
558 Print the host physical address at which the guest's physical address @var{addr}
559 is mapped.
560 ETEXI
561
562 {
563 .name = "p|print",
564 .args_type = "fmt:/,val:l",
565 .params = "/fmt expr",
566 .help = "print expression value (use $reg for CPU register access)",
567 .cmd = do_print,
568 },
569
570 STEXI
571 @item p or print/@var{fmt} @var{expr}
572 @findex print
573 Print expression value. Only the @var{format} part of @var{fmt} is
574 used.
575 ETEXI
576
577 {
578 .name = "i",
579 .args_type = "fmt:/,addr:i,index:i.",
580 .params = "/fmt addr",
581 .help = "I/O port read",
582 .cmd = hmp_ioport_read,
583 },
584
585 STEXI
586 @item i/@var{fmt} @var{addr} [.@var{index}]
587 @findex i
588 Read I/O port.
589 ETEXI
590
591 {
592 .name = "o",
593 .args_type = "fmt:/,addr:i,val:i",
594 .params = "/fmt addr value",
595 .help = "I/O port write",
596 .cmd = hmp_ioport_write,
597 },
598
599 STEXI
600 @item o/@var{fmt} @var{addr} @var{val}
601 @findex o
602 Write to I/O port.
603 ETEXI
604
605 {
606 .name = "sendkey",
607 .args_type = "keys:s,hold-time:i?",
608 .params = "keys [hold_ms]",
609 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
610 .cmd = hmp_sendkey,
611 .command_completion = sendkey_completion,
612 },
613
614 STEXI
615 @item sendkey @var{keys}
616 @findex sendkey
617 Send @var{keys} to the guest. @var{keys} could be the name of the
618 key or the raw value in hexadecimal format. Use @code{-} to press
619 several keys simultaneously. Example:
620 @example
621 sendkey ctrl-alt-f1
622 @end example
623
624 This command is useful to send keys that your graphical user interface
625 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
626 ETEXI
627
628 {
629 .name = "system_reset",
630 .args_type = "",
631 .params = "",
632 .help = "reset the system",
633 .cmd = hmp_system_reset,
634 },
635
636 STEXI
637 @item system_reset
638 @findex system_reset
639 Reset the system.
640 ETEXI
641
642 {
643 .name = "system_powerdown",
644 .args_type = "",
645 .params = "",
646 .help = "send system power down event",
647 .cmd = hmp_system_powerdown,
648 },
649
650 STEXI
651 @item system_powerdown
652 @findex system_powerdown
653 Power down the system (if supported).
654 ETEXI
655
656 {
657 .name = "sum",
658 .args_type = "start:i,size:i",
659 .params = "addr size",
660 .help = "compute the checksum of a memory region",
661 .cmd = hmp_sum,
662 },
663
664 STEXI
665 @item sum @var{addr} @var{size}
666 @findex sum
667 Compute the checksum of a memory region.
668 ETEXI
669
670 {
671 .name = "device_add",
672 .args_type = "device:O",
673 .params = "driver[,prop=value][,...]",
674 .help = "add device, like -device on the command line",
675 .cmd = hmp_device_add,
676 .command_completion = device_add_completion,
677 },
678
679 STEXI
680 @item device_add @var{config}
681 @findex device_add
682 Add device.
683 ETEXI
684
685 {
686 .name = "device_del",
687 .args_type = "id:s",
688 .params = "device",
689 .help = "remove device",
690 .cmd = hmp_device_del,
691 .command_completion = device_del_completion,
692 },
693
694 STEXI
695 @item device_del @var{id}
696 @findex device_del
697 Remove device @var{id}. @var{id} may be a short ID
698 or a QOM object path.
699 ETEXI
700
701 {
702 .name = "cpu",
703 .args_type = "index:i",
704 .params = "index",
705 .help = "set the default CPU",
706 .cmd = hmp_cpu,
707 },
708
709 STEXI
710 @item cpu @var{index}
711 @findex cpu
712 Set the default CPU.
713 ETEXI
714
715 {
716 .name = "mouse_move",
717 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
718 .params = "dx dy [dz]",
719 .help = "send mouse move events",
720 .cmd = hmp_mouse_move,
721 },
722
723 STEXI
724 @item mouse_move @var{dx} @var{dy} [@var{dz}]
725 @findex mouse_move
726 Move the active mouse to the specified coordinates @var{dx} @var{dy}
727 with optional scroll axis @var{dz}.
728 ETEXI
729
730 {
731 .name = "mouse_button",
732 .args_type = "button_state:i",
733 .params = "state",
734 .help = "change mouse button state (1=L, 2=M, 4=R)",
735 .cmd = hmp_mouse_button,
736 },
737
738 STEXI
739 @item mouse_button @var{val}
740 @findex mouse_button
741 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
742 ETEXI
743
744 {
745 .name = "mouse_set",
746 .args_type = "index:i",
747 .params = "index",
748 .help = "set which mouse device receives events",
749 .cmd = hmp_mouse_set,
750 },
751
752 STEXI
753 @item mouse_set @var{index}
754 @findex mouse_set
755 Set which mouse device receives events at given @var{index}, index
756 can be obtained with
757 @example
758 info mice
759 @end example
760 ETEXI
761
762 {
763 .name = "wavcapture",
764 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?",
765 .params = "path [frequency [bits [channels]]]",
766 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
767 .cmd = hmp_wavcapture,
768 },
769 STEXI
770 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
771 @findex wavcapture
772 Capture audio into @var{filename}. Using sample rate @var{frequency}
773 bits per sample @var{bits} and number of channels @var{channels}.
774
775 Defaults:
776 @itemize @minus
777 @item Sample rate = 44100 Hz - CD quality
778 @item Bits = 16
779 @item Number of channels = 2 - Stereo
780 @end itemize
781 ETEXI
782
783 {
784 .name = "stopcapture",
785 .args_type = "n:i",
786 .params = "capture index",
787 .help = "stop capture",
788 .cmd = hmp_stopcapture,
789 },
790 STEXI
791 @item stopcapture @var{index}
792 @findex stopcapture
793 Stop capture with a given @var{index}, index can be obtained with
794 @example
795 info capture
796 @end example
797 ETEXI
798
799 {
800 .name = "memsave",
801 .args_type = "val:l,size:i,filename:s",
802 .params = "addr size file",
803 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
804 .cmd = hmp_memsave,
805 },
806
807 STEXI
808 @item memsave @var{addr} @var{size} @var{file}
809 @findex memsave
810 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
811 ETEXI
812
813 {
814 .name = "pmemsave",
815 .args_type = "val:l,size:i,filename:s",
816 .params = "addr size file",
817 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
818 .cmd = hmp_pmemsave,
819 },
820
821 STEXI
822 @item pmemsave @var{addr} @var{size} @var{file}
823 @findex pmemsave
824 save to disk physical memory dump starting at @var{addr} of size @var{size}.
825 ETEXI
826
827 {
828 .name = "boot_set",
829 .args_type = "bootdevice:s",
830 .params = "bootdevice",
831 .help = "define new values for the boot device list",
832 .cmd = hmp_boot_set,
833 },
834
835 STEXI
836 @item boot_set @var{bootdevicelist}
837 @findex boot_set
838 Define new values for the boot device list. Those values will override
839 the values specified on the command line through the @code{-boot} option.
840
841 The values that can be specified here depend on the machine type, but are
842 the same that can be specified in the @code{-boot} command line option.
843 ETEXI
844
845 {
846 .name = "nmi",
847 .args_type = "",
848 .params = "",
849 .help = "inject an NMI",
850 .cmd = hmp_nmi,
851 },
852 STEXI
853 @item nmi @var{cpu}
854 @findex nmi
855 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
856
857 ETEXI
858
859 {
860 .name = "ringbuf_write",
861 .args_type = "device:s,data:s",
862 .params = "device data",
863 .help = "Write to a ring buffer character device",
864 .cmd = hmp_ringbuf_write,
865 .command_completion = ringbuf_write_completion,
866 },
867
868 STEXI
869 @item ringbuf_write @var{device} @var{data}
870 @findex ringbuf_write
871 Write @var{data} to ring buffer character device @var{device}.
872 @var{data} must be a UTF-8 string.
873
874 ETEXI
875
876 {
877 .name = "ringbuf_read",
878 .args_type = "device:s,size:i",
879 .params = "device size",
880 .help = "Read from a ring buffer character device",
881 .cmd = hmp_ringbuf_read,
882 .command_completion = ringbuf_write_completion,
883 },
884
885 STEXI
886 @item ringbuf_read @var{device}
887 @findex ringbuf_read
888 Read and print up to @var{size} bytes from ring buffer character
889 device @var{device}.
890 Certain non-printable characters are printed \uXXXX, where XXXX is the
891 character code in hexadecimal. Character \ is printed \\.
892 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
893 NUL characters, after the ring buffer lost data, and when reading
894 stops because the size limit is reached.
895
896 ETEXI
897
898 {
899 .name = "migrate",
900 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
901 .params = "[-d] [-b] [-i] [-r] uri",
902 .help = "migrate to URI (using -d to not wait for completion)"
903 "\n\t\t\t -b for migration without shared storage with"
904 " full copy of disk\n\t\t\t -i for migration without "
905 "shared storage with incremental copy of disk "
906 "(base image shared between src and destination)"
907 "\n\t\t\t -r to resume a paused migration",
908 .cmd = hmp_migrate,
909 },
910
911
912 STEXI
913 @item migrate [-d] [-b] [-i] @var{uri}
914 @findex migrate
915 Migrate to @var{uri} (using -d to not wait for completion).
916 -b for migration with full copy of disk
917 -i for migration with incremental copy of disk (base image is shared)
918 ETEXI
919
920 {
921 .name = "migrate_cancel",
922 .args_type = "",
923 .params = "",
924 .help = "cancel the current VM migration",
925 .cmd = hmp_migrate_cancel,
926 },
927
928 STEXI
929 @item migrate_cancel
930 @findex migrate_cancel
931 Cancel the current VM migration.
932 ETEXI
933
934 {
935 .name = "migrate_continue",
936 .args_type = "state:s",
937 .params = "state",
938 .help = "Continue migration from the given paused state",
939 .cmd = hmp_migrate_continue,
940 },
941 STEXI
942 @item migrate_continue @var{state}
943 @findex migrate_continue
944 Continue migration from the paused state @var{state}
945 ETEXI
946
947 {
948 .name = "migrate_incoming",
949 .args_type = "uri:s",
950 .params = "uri",
951 .help = "Continue an incoming migration from an -incoming defer",
952 .cmd = hmp_migrate_incoming,
953 },
954
955 STEXI
956 @item migrate_incoming @var{uri}
957 @findex migrate_incoming
958 Continue an incoming migration using the @var{uri} (that has the same syntax
959 as the -incoming option).
960 ETEXI
961
962 {
963 .name = "migrate_recover",
964 .args_type = "uri:s",
965 .params = "uri",
966 .help = "Continue a paused incoming postcopy migration",
967 .cmd = hmp_migrate_recover,
968 },
969
970 STEXI
971 @item migrate_recover @var{uri}
972 @findex migrate_recover
973 Continue a paused incoming postcopy migration using the @var{uri}.
974 ETEXI
975
976 {
977 .name = "migrate_pause",
978 .args_type = "",
979 .params = "",
980 .help = "Pause an ongoing migration (postcopy-only)",
981 .cmd = hmp_migrate_pause,
982 },
983
984 STEXI
985 @item migrate_pause
986 @findex migrate_pause
987 Pause an ongoing migration. Currently it only supports postcopy.
988 ETEXI
989
990 {
991 .name = "migrate_set_cache_size",
992 .args_type = "value:o",
993 .params = "value",
994 .help = "set cache size (in bytes) for XBZRLE migrations,"
995 "the cache size will be rounded down to the nearest "
996 "power of 2.\n"
997 "The cache size affects the number of cache misses."
998 "In case of a high cache miss ratio you need to increase"
999 " the cache size",
1000 .cmd = hmp_migrate_set_cache_size,
1001 },
1002
1003 STEXI
1004 @item migrate_set_cache_size @var{value}
1005 @findex migrate_set_cache_size
1006 Set cache size to @var{value} (in bytes) for xbzrle migrations.
1007 ETEXI
1008
1009 {
1010 .name = "migrate_set_speed",
1011 .args_type = "value:o",
1012 .params = "value",
1013 .help = "set maximum speed (in bytes) for migrations. "
1014 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
1015 .cmd = hmp_migrate_set_speed,
1016 },
1017
1018 STEXI
1019 @item migrate_set_speed @var{value}
1020 @findex migrate_set_speed
1021 Set maximum speed to @var{value} (in bytes) for migrations.
1022 ETEXI
1023
1024 {
1025 .name = "migrate_set_downtime",
1026 .args_type = "value:T",
1027 .params = "value",
1028 .help = "set maximum tolerated downtime (in seconds) for migrations",
1029 .cmd = hmp_migrate_set_downtime,
1030 },
1031
1032 STEXI
1033 @item migrate_set_downtime @var{second}
1034 @findex migrate_set_downtime
1035 Set maximum tolerated downtime (in seconds) for migration.
1036 ETEXI
1037
1038 {
1039 .name = "migrate_set_capability",
1040 .args_type = "capability:s,state:b",
1041 .params = "capability state",
1042 .help = "Enable/Disable the usage of a capability for migration",
1043 .cmd = hmp_migrate_set_capability,
1044 .command_completion = migrate_set_capability_completion,
1045 },
1046
1047 STEXI
1048 @item migrate_set_capability @var{capability} @var{state}
1049 @findex migrate_set_capability
1050 Enable/Disable the usage of a capability @var{capability} for migration.
1051 ETEXI
1052
1053 {
1054 .name = "migrate_set_parameter",
1055 .args_type = "parameter:s,value:s",
1056 .params = "parameter value",
1057 .help = "Set the parameter for migration",
1058 .cmd = hmp_migrate_set_parameter,
1059 .command_completion = migrate_set_parameter_completion,
1060 },
1061
1062 STEXI
1063 @item migrate_set_parameter @var{parameter} @var{value}
1064 @findex migrate_set_parameter
1065 Set the parameter @var{parameter} for migration.
1066 ETEXI
1067
1068 {
1069 .name = "migrate_start_postcopy",
1070 .args_type = "",
1071 .params = "",
1072 .help = "Followup to a migration command to switch the migration"
1073 " to postcopy mode. The postcopy-ram capability must "
1074 "be set on both source and destination before the "
1075 "original migration command .",
1076 .cmd = hmp_migrate_start_postcopy,
1077 },
1078
1079 STEXI
1080 @item migrate_start_postcopy
1081 @findex migrate_start_postcopy
1082 Switch in-progress migration to postcopy mode. Ignored after the end of
1083 migration (or once already in postcopy).
1084 ETEXI
1085
1086 {
1087 .name = "x_colo_lost_heartbeat",
1088 .args_type = "",
1089 .params = "",
1090 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1091 "a failover or takeover is needed.",
1092 .cmd = hmp_x_colo_lost_heartbeat,
1093 },
1094
1095 STEXI
1096 @item x_colo_lost_heartbeat
1097 @findex x_colo_lost_heartbeat
1098 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1099 ETEXI
1100
1101 {
1102 .name = "client_migrate_info",
1103 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1104 .params = "protocol hostname port tls-port cert-subject",
1105 .help = "set migration information for remote display",
1106 .cmd = hmp_client_migrate_info,
1107 },
1108
1109 STEXI
1110 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
1111 @findex client_migrate_info
1112 Set migration information for remote display. This makes the server
1113 ask the client to automatically reconnect using the new parameters
1114 once migration finished successfully. Only implemented for SPICE.
1115 ETEXI
1116
1117 {
1118 .name = "dump-guest-memory",
1119 .args_type = "paging:-p,detach:-d,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:i?,length:i?",
1120 .params = "[-p] [-d] [-z|-l|-s] filename [begin length]",
1121 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1122 "-p: do paging to get guest's memory mapping.\n\t\t\t"
1123 "-d: return immediately (do not wait for completion).\n\t\t\t"
1124 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1125 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1126 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1127 "begin: the starting physical address.\n\t\t\t"
1128 "length: the memory size, in bytes.",
1129 .cmd = hmp_dump_guest_memory,
1130 },
1131
1132
1133 STEXI
1134 @item dump-guest-memory [-p] @var{filename} @var{begin} @var{length}
1135 @item dump-guest-memory [-z|-l|-s] @var{filename}
1136 @findex dump-guest-memory
1137 Dump guest memory to @var{protocol}. The file can be processed with crash or
1138 gdb. Without -z|-l|-s, the dump format is ELF.
1139 -p: do paging to get guest's memory mapping.
1140 -z: dump in kdump-compressed format, with zlib compression.
1141 -l: dump in kdump-compressed format, with lzo compression.
1142 -s: dump in kdump-compressed format, with snappy compression.
1143 filename: dump file name.
1144 begin: the starting physical address. It's optional, and should be
1145 specified together with length.
1146 length: the memory size, in bytes. It's optional, and should be specified
1147 together with begin.
1148 ETEXI
1149
1150 #if defined(TARGET_S390X)
1151 {
1152 .name = "dump-skeys",
1153 .args_type = "filename:F",
1154 .params = "",
1155 .help = "Save guest storage keys into file 'filename'.\n",
1156 .cmd = hmp_dump_skeys,
1157 },
1158 #endif
1159
1160 STEXI
1161 @item dump-skeys @var{filename}
1162 @findex dump-skeys
1163 Save guest storage keys to a file.
1164 ETEXI
1165
1166 #if defined(TARGET_S390X)
1167 {
1168 .name = "migration_mode",
1169 .args_type = "mode:i",
1170 .params = "mode",
1171 .help = "Enables or disables migration mode\n",
1172 .cmd = hmp_migrationmode,
1173 },
1174 #endif
1175
1176 STEXI
1177 @item migration_mode @var{mode}
1178 @findex migration_mode
1179 Enables or disables migration mode.
1180 ETEXI
1181
1182 {
1183 .name = "snapshot_blkdev",
1184 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1185 .params = "[-n] device [new-image-file] [format]",
1186 .help = "initiates a live snapshot\n\t\t\t"
1187 "of device. If a new image file is specified, the\n\t\t\t"
1188 "new image file will become the new root image.\n\t\t\t"
1189 "If format is specified, the snapshot file will\n\t\t\t"
1190 "be created in that format.\n\t\t\t"
1191 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1192 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1193 "recreating it from scratch.",
1194 .cmd = hmp_snapshot_blkdev,
1195 },
1196
1197 STEXI
1198 @item snapshot_blkdev
1199 @findex snapshot_blkdev
1200 Snapshot device, using snapshot file as target if provided
1201 ETEXI
1202
1203 {
1204 .name = "snapshot_blkdev_internal",
1205 .args_type = "device:B,name:s",
1206 .params = "device name",
1207 .help = "take an internal snapshot of device.\n\t\t\t"
1208 "The format of the image used by device must\n\t\t\t"
1209 "support it, such as qcow2.\n\t\t\t",
1210 .cmd = hmp_snapshot_blkdev_internal,
1211 },
1212
1213 STEXI
1214 @item snapshot_blkdev_internal
1215 @findex snapshot_blkdev_internal
1216 Take an internal snapshot on device if it support
1217 ETEXI
1218
1219 {
1220 .name = "snapshot_delete_blkdev_internal",
1221 .args_type = "device:B,name:s,id:s?",
1222 .params = "device name [id]",
1223 .help = "delete an internal snapshot of device.\n\t\t\t"
1224 "If id is specified, qemu will try delete\n\t\t\t"
1225 "the snapshot matching both id and name.\n\t\t\t"
1226 "The format of the image used by device must\n\t\t\t"
1227 "support it, such as qcow2.\n\t\t\t",
1228 .cmd = hmp_snapshot_delete_blkdev_internal,
1229 },
1230
1231 STEXI
1232 @item snapshot_delete_blkdev_internal
1233 @findex snapshot_delete_blkdev_internal
1234 Delete an internal snapshot on device if it support
1235 ETEXI
1236
1237 {
1238 .name = "drive_mirror",
1239 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1240 .params = "[-n] [-f] device target [format]",
1241 .help = "initiates live storage\n\t\t\t"
1242 "migration for a device. The device's contents are\n\t\t\t"
1243 "copied to the new image file, including data that\n\t\t\t"
1244 "is written after the command is started.\n\t\t\t"
1245 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1246 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1247 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1248 "so that the result does not need a backing file.\n\t\t\t",
1249 .cmd = hmp_drive_mirror,
1250 },
1251 STEXI
1252 @item drive_mirror
1253 @findex drive_mirror
1254 Start mirroring a block device's writes to a new destination,
1255 using the specified target.
1256 ETEXI
1257
1258 {
1259 .name = "drive_backup",
1260 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1261 .params = "[-n] [-f] [-c] device target [format]",
1262 .help = "initiates a point-in-time\n\t\t\t"
1263 "copy for a device. The device's contents are\n\t\t\t"
1264 "copied to the new image file, excluding data that\n\t\t\t"
1265 "is written after the command is started.\n\t\t\t"
1266 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1267 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1268 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1269 "so that the result does not need a backing file.\n\t\t\t"
1270 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1271 "(if the target format supports it).\n\t\t\t",
1272 .cmd = hmp_drive_backup,
1273 },
1274 STEXI
1275 @item drive_backup
1276 @findex drive_backup
1277 Start a point-in-time copy of a block device to a specificed target.
1278 ETEXI
1279
1280 {
1281 .name = "drive_add",
1282 .args_type = "node:-n,pci_addr:s,opts:s",
1283 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
1284 "[file=file][,if=type][,bus=n]\n"
1285 "[,unit=m][,media=d][,index=i]\n"
1286 "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
1287 "[,snapshot=on|off][,cache=on|off]\n"
1288 "[,readonly=on|off][,copy-on-read=on|off]",
1289 .help = "add drive to PCI storage controller",
1290 .cmd = hmp_drive_add,
1291 },
1292
1293 STEXI
1294 @item drive_add
1295 @findex drive_add
1296 Add drive to PCI storage controller.
1297 ETEXI
1298
1299 {
1300 .name = "pcie_aer_inject_error",
1301 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1302 "id:s,error_status:s,"
1303 "header0:i?,header1:i?,header2:i?,header3:i?,"
1304 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1305 .params = "[-a] [-c] id "
1306 "<error_status> [<tlp header> [<tlp header prefix>]]",
1307 .help = "inject pcie aer error\n\t\t\t"
1308 " -a for advisory non fatal error\n\t\t\t"
1309 " -c for correctable error\n\t\t\t"
1310 "<id> = qdev device id\n\t\t\t"
1311 "<error_status> = error string or 32bit\n\t\t\t"
1312 "<tlb header> = 32bit x 4\n\t\t\t"
1313 "<tlb header prefix> = 32bit x 4",
1314 .cmd = hmp_pcie_aer_inject_error,
1315 },
1316
1317 STEXI
1318 @item pcie_aer_inject_error
1319 @findex pcie_aer_inject_error
1320 Inject PCIe AER error
1321 ETEXI
1322
1323 {
1324 .name = "netdev_add",
1325 .args_type = "netdev:O",
1326 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1327 .help = "add host network device",
1328 .cmd = hmp_netdev_add,
1329 .command_completion = netdev_add_completion,
1330 },
1331
1332 STEXI
1333 @item netdev_add
1334 @findex netdev_add
1335 Add host network device.
1336 ETEXI
1337
1338 {
1339 .name = "netdev_del",
1340 .args_type = "id:s",
1341 .params = "id",
1342 .help = "remove host network device",
1343 .cmd = hmp_netdev_del,
1344 .command_completion = netdev_del_completion,
1345 },
1346
1347 STEXI
1348 @item netdev_del
1349 @findex netdev_del
1350 Remove host network device.
1351 ETEXI
1352
1353 {
1354 .name = "object_add",
1355 .args_type = "object:O",
1356 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1357 .help = "create QOM object",
1358 .cmd = hmp_object_add,
1359 .command_completion = object_add_completion,
1360 },
1361
1362 STEXI
1363 @item object_add
1364 @findex object_add
1365 Create QOM object.
1366 ETEXI
1367
1368 {
1369 .name = "object_del",
1370 .args_type = "id:s",
1371 .params = "id",
1372 .help = "destroy QOM object",
1373 .cmd = hmp_object_del,
1374 .command_completion = object_del_completion,
1375 },
1376
1377 STEXI
1378 @item object_del
1379 @findex object_del
1380 Destroy QOM object.
1381 ETEXI
1382
1383 #ifdef CONFIG_SLIRP
1384 {
1385 .name = "hostfwd_add",
1386 .args_type = "arg1:s,arg2:s?,arg3:s?",
1387 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1388 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1389 .cmd = hmp_hostfwd_add,
1390 },
1391 #endif
1392 STEXI
1393 @item hostfwd_add
1394 @findex hostfwd_add
1395 Redirect TCP or UDP connections from host to guest (requires -net user).
1396 ETEXI
1397
1398 #ifdef CONFIG_SLIRP
1399 {
1400 .name = "hostfwd_remove",
1401 .args_type = "arg1:s,arg2:s?,arg3:s?",
1402 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1403 .help = "remove host-to-guest TCP or UDP redirection",
1404 .cmd = hmp_hostfwd_remove,
1405 },
1406
1407 #endif
1408 STEXI
1409 @item hostfwd_remove
1410 @findex hostfwd_remove
1411 Remove host-to-guest TCP or UDP redirection.
1412 ETEXI
1413
1414 {
1415 .name = "balloon",
1416 .args_type = "value:M",
1417 .params = "target",
1418 .help = "request VM to change its memory allocation (in MB)",
1419 .cmd = hmp_balloon,
1420 },
1421
1422 STEXI
1423 @item balloon @var{value}
1424 @findex balloon
1425 Request VM to change its memory allocation to @var{value} (in MB).
1426 ETEXI
1427
1428 {
1429 .name = "set_link",
1430 .args_type = "name:s,up:b",
1431 .params = "name on|off",
1432 .help = "change the link status of a network adapter",
1433 .cmd = hmp_set_link,
1434 .command_completion = set_link_completion,
1435 },
1436
1437 STEXI
1438 @item set_link @var{name} [on|off]
1439 @findex set_link
1440 Switch link @var{name} on (i.e. up) or off (i.e. down).
1441 ETEXI
1442
1443 {
1444 .name = "watchdog_action",
1445 .args_type = "action:s",
1446 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1447 .help = "change watchdog action",
1448 .cmd = hmp_watchdog_action,
1449 .command_completion = watchdog_action_completion,
1450 },
1451
1452 STEXI
1453 @item watchdog_action
1454 @findex watchdog_action
1455 Change watchdog action.
1456 ETEXI
1457
1458 {
1459 .name = "acl_show",
1460 .args_type = "aclname:s",
1461 .params = "aclname",
1462 .help = "list rules in the access control list",
1463 .cmd = hmp_acl_show,
1464 },
1465
1466 STEXI
1467 @item acl_show @var{aclname}
1468 @findex acl_show
1469 List all the matching rules in the access control list, and the default
1470 policy. There are currently two named access control lists,
1471 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1472 certificate distinguished name, and SASL username respectively.
1473 ETEXI
1474
1475 {
1476 .name = "acl_policy",
1477 .args_type = "aclname:s,policy:s",
1478 .params = "aclname allow|deny",
1479 .help = "set default access control list policy",
1480 .cmd = hmp_acl_policy,
1481 },
1482
1483 STEXI
1484 @item acl_policy @var{aclname} @code{allow|deny}
1485 @findex acl_policy
1486 Set the default access control list policy, used in the event that
1487 none of the explicit rules match. The default policy at startup is
1488 always @code{deny}.
1489 ETEXI
1490
1491 {
1492 .name = "acl_add",
1493 .args_type = "aclname:s,match:s,policy:s,index:i?",
1494 .params = "aclname match allow|deny [index]",
1495 .help = "add a match rule to the access control list",
1496 .cmd = hmp_acl_add,
1497 },
1498
1499 STEXI
1500 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1501 @findex acl_add
1502 Add a match rule to the access control list, allowing or denying access.
1503 The match will normally be an exact username or x509 distinguished name,
1504 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1505 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1506 normally be appended to the end of the ACL, but can be inserted
1507 earlier in the list if the optional @var{index} parameter is supplied.
1508 ETEXI
1509
1510 {
1511 .name = "acl_remove",
1512 .args_type = "aclname:s,match:s",
1513 .params = "aclname match",
1514 .help = "remove a match rule from the access control list",
1515 .cmd = hmp_acl_remove,
1516 },
1517
1518 STEXI
1519 @item acl_remove @var{aclname} @var{match}
1520 @findex acl_remove
1521 Remove the specified match rule from the access control list.
1522 ETEXI
1523
1524 {
1525 .name = "acl_reset",
1526 .args_type = "aclname:s",
1527 .params = "aclname",
1528 .help = "reset the access control list",
1529 .cmd = hmp_acl_reset,
1530 },
1531
1532 STEXI
1533 @item acl_reset @var{aclname}
1534 @findex acl_reset
1535 Remove all matches from the access control list, and set the default
1536 policy back to @code{deny}.
1537 ETEXI
1538
1539 {
1540 .name = "nbd_server_start",
1541 .args_type = "all:-a,writable:-w,uri:s",
1542 .params = "nbd_server_start [-a] [-w] host:port",
1543 .help = "serve block devices on the given host and port",
1544 .cmd = hmp_nbd_server_start,
1545 },
1546 STEXI
1547 @item nbd_server_start @var{host}:@var{port}
1548 @findex nbd_server_start
1549 Start an NBD server on the given host and/or port. If the @option{-a}
1550 option is included, all of the virtual machine's block devices that
1551 have an inserted media on them are automatically exported; in this case,
1552 the @option{-w} option makes the devices writable too.
1553 ETEXI
1554
1555 {
1556 .name = "nbd_server_add",
1557 .args_type = "writable:-w,device:B,name:s?",
1558 .params = "nbd_server_add [-w] device [name]",
1559 .help = "export a block device via NBD",
1560 .cmd = hmp_nbd_server_add,
1561 },
1562 STEXI
1563 @item nbd_server_add @var{device} [ @var{name} ]
1564 @findex nbd_server_add
1565 Export a block device through QEMU's NBD server, which must be started
1566 beforehand with @command{nbd_server_start}. The @option{-w} option makes the
1567 exported device writable too. The export name is controlled by @var{name},
1568 defaulting to @var{device}.
1569 ETEXI
1570
1571 {
1572 .name = "nbd_server_remove",
1573 .args_type = "force:-f,name:s",
1574 .params = "nbd_server_remove [-f] name",
1575 .help = "remove an export previously exposed via NBD",
1576 .cmd = hmp_nbd_server_remove,
1577 },
1578 STEXI
1579 @item nbd_server_remove [-f] @var{name}
1580 @findex nbd_server_remove
1581 Stop exporting a block device through QEMU's NBD server, which was
1582 previously started with @command{nbd_server_add}. The @option{-f}
1583 option forces the server to drop the export immediately even if
1584 clients are connected; otherwise the command fails unless there are no
1585 clients.
1586 ETEXI
1587
1588 {
1589 .name = "nbd_server_stop",
1590 .args_type = "",
1591 .params = "nbd_server_stop",
1592 .help = "stop serving block devices using the NBD protocol",
1593 .cmd = hmp_nbd_server_stop,
1594 },
1595 STEXI
1596 @item nbd_server_stop
1597 @findex nbd_server_stop
1598 Stop the QEMU embedded NBD server.
1599 ETEXI
1600
1601
1602 #if defined(TARGET_I386)
1603
1604 {
1605 .name = "mce",
1606 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1607 .params = "[-b] cpu bank status mcgstatus addr misc",
1608 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1609 .cmd = hmp_mce,
1610 },
1611
1612 #endif
1613 STEXI
1614 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1615 @findex mce (x86)
1616 Inject an MCE on the given CPU (x86 only).
1617 ETEXI
1618
1619 {
1620 .name = "getfd",
1621 .args_type = "fdname:s",
1622 .params = "getfd name",
1623 .help = "receive a file descriptor via SCM rights and assign it a name",
1624 .cmd = hmp_getfd,
1625 },
1626
1627 STEXI
1628 @item getfd @var{fdname}
1629 @findex getfd
1630 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1631 mechanism on unix sockets, it is stored using the name @var{fdname} for
1632 later use by other monitor commands.
1633 ETEXI
1634
1635 {
1636 .name = "closefd",
1637 .args_type = "fdname:s",
1638 .params = "closefd name",
1639 .help = "close a file descriptor previously passed via SCM rights",
1640 .cmd = hmp_closefd,
1641 },
1642
1643 STEXI
1644 @item closefd @var{fdname}
1645 @findex closefd
1646 Close the file descriptor previously assigned to @var{fdname} using the
1647 @code{getfd} command. This is only needed if the file descriptor was never
1648 used by another monitor command.
1649 ETEXI
1650
1651 {
1652 .name = "block_passwd",
1653 .args_type = "device:B,password:s",
1654 .params = "block_passwd device password",
1655 .help = "set the password of encrypted block devices",
1656 .cmd = hmp_block_passwd,
1657 },
1658
1659 STEXI
1660 @item block_passwd @var{device} @var{password}
1661 @findex block_passwd
1662 Set the encrypted device @var{device} password to @var{password}
1663
1664 This command is now obsolete and will always return an error since 2.10
1665 ETEXI
1666
1667 {
1668 .name = "block_set_io_throttle",
1669 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1670 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1671 .help = "change I/O throttle limits for a block drive",
1672 .cmd = hmp_block_set_io_throttle,
1673 },
1674
1675 STEXI
1676 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1677 @findex block_set_io_throttle
1678 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}.
1679 @var{device} can be a block device name, a qdev ID or a QOM path.
1680 ETEXI
1681
1682 {
1683 .name = "set_password",
1684 .args_type = "protocol:s,password:s,connected:s?",
1685 .params = "protocol password action-if-connected",
1686 .help = "set spice/vnc password",
1687 .cmd = hmp_set_password,
1688 },
1689
1690 STEXI
1691 @item set_password [ vnc | spice ] password [ action-if-connected ]
1692 @findex set_password
1693 Change spice/vnc password. Use zero to make the password stay valid
1694 forever. @var{action-if-connected} specifies what should happen in
1695 case a connection is established: @var{fail} makes the password change
1696 fail. @var{disconnect} changes the password and disconnects the
1697 client. @var{keep} changes the password and keeps the connection up.
1698 @var{keep} is the default.
1699 ETEXI
1700
1701 {
1702 .name = "expire_password",
1703 .args_type = "protocol:s,time:s",
1704 .params = "protocol time",
1705 .help = "set spice/vnc password expire-time",
1706 .cmd = hmp_expire_password,
1707 },
1708
1709 STEXI
1710 @item expire_password [ vnc | spice ] expire-time
1711 @findex expire_password
1712 Specify when a password for spice/vnc becomes
1713 invalid. @var{expire-time} accepts:
1714
1715 @table @var
1716 @item now
1717 Invalidate password instantly.
1718
1719 @item never
1720 Password stays valid forever.
1721
1722 @item +nsec
1723 Password stays valid for @var{nsec} seconds starting now.
1724
1725 @item nsec
1726 Password is invalidated at the given time. @var{nsec} are the seconds
1727 passed since 1970, i.e. unix epoch.
1728
1729 @end table
1730 ETEXI
1731
1732 {
1733 .name = "chardev-add",
1734 .args_type = "args:s",
1735 .params = "args",
1736 .help = "add chardev",
1737 .cmd = hmp_chardev_add,
1738 .command_completion = chardev_add_completion,
1739 },
1740
1741 STEXI
1742 @item chardev-add args
1743 @findex chardev-add
1744 chardev-add accepts the same parameters as the -chardev command line switch.
1745
1746 ETEXI
1747
1748 {
1749 .name = "chardev-change",
1750 .args_type = "id:s,args:s",
1751 .params = "id args",
1752 .help = "change chardev",
1753 .cmd = hmp_chardev_change,
1754 },
1755
1756 STEXI
1757 @item chardev-change args
1758 @findex chardev-change
1759 chardev-change accepts existing chardev @var{id} and then the same arguments
1760 as the -chardev command line switch (except for "id").
1761
1762 ETEXI
1763
1764 {
1765 .name = "chardev-remove",
1766 .args_type = "id:s",
1767 .params = "id",
1768 .help = "remove chardev",
1769 .cmd = hmp_chardev_remove,
1770 .command_completion = chardev_remove_completion,
1771 },
1772
1773 STEXI
1774 @item chardev-remove id
1775 @findex chardev-remove
1776 Removes the chardev @var{id}.
1777
1778 ETEXI
1779
1780 {
1781 .name = "chardev-send-break",
1782 .args_type = "id:s",
1783 .params = "id",
1784 .help = "send a break on chardev",
1785 .cmd = hmp_chardev_send_break,
1786 .command_completion = chardev_remove_completion,
1787 },
1788
1789 STEXI
1790 @item chardev-send-break id
1791 @findex chardev-send-break
1792 Send a break on the chardev @var{id}.
1793
1794 ETEXI
1795
1796 {
1797 .name = "qemu-io",
1798 .args_type = "device:B,command:s",
1799 .params = "[device] \"[command]\"",
1800 .help = "run a qemu-io command on a block device",
1801 .cmd = hmp_qemu_io,
1802 },
1803
1804 STEXI
1805 @item qemu-io @var{device} @var{command}
1806 @findex qemu-io
1807 Executes a qemu-io command on the given block device.
1808
1809 ETEXI
1810
1811 {
1812 .name = "cpu-add",
1813 .args_type = "id:i",
1814 .params = "id",
1815 .help = "add cpu",
1816 .cmd = hmp_cpu_add,
1817 },
1818
1819 STEXI
1820 @item cpu-add @var{id}
1821 @findex cpu-add
1822 Add CPU with id @var{id}
1823 ETEXI
1824
1825 {
1826 .name = "qom-list",
1827 .args_type = "path:s?",
1828 .params = "path",
1829 .help = "list QOM properties",
1830 .cmd = hmp_qom_list,
1831 },
1832
1833 STEXI
1834 @item qom-list [@var{path}]
1835 Print QOM properties of object at location @var{path}
1836 ETEXI
1837
1838 {
1839 .name = "qom-set",
1840 .args_type = "path:s,property:s,value:s",
1841 .params = "path property value",
1842 .help = "set QOM property",
1843 .cmd = hmp_qom_set,
1844 },
1845
1846 STEXI
1847 @item qom-set @var{path} @var{property} @var{value}
1848 Set QOM property @var{property} of object at location @var{path} to value @var{value}
1849 ETEXI
1850
1851 {
1852 .name = "info",
1853 .args_type = "item:s?",
1854 .params = "[subcommand]",
1855 .help = "show various information about the system state",
1856 .cmd = hmp_info_help,
1857 .sub_table = info_cmds,
1858 },
1859
1860 STEXI
1861 @end table
1862 ETEXI