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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 .flags = "p",
19 },
20
21 STEXI
22 @item help or ? [@var{cmd}]
23 @findex help
24 Show the help for all commands or just for command @var{cmd}.
25 ETEXI
26
27 {
28 .name = "commit",
29 .args_type = "device:B",
30 .params = "device|all",
31 .help = "commit changes to the disk images (if -snapshot is used) or backing files",
32 .cmd = hmp_commit,
33 },
34
35 STEXI
36 @item commit
37 @findex commit
38 Commit changes to the disk images (if -snapshot is used) or backing files.
39 If the backing file is smaller than the snapshot, then the backing file will be
40 resized to be the same size as the snapshot. If the snapshot is smaller than
41 the backing file, the backing file will not be truncated. If you want the
42 backing file to match the size of the smaller snapshot, you can safely truncate
43 it yourself once the commit operation successfully completes.
44 ETEXI
45
46 {
47 .name = "q|quit",
48 .args_type = "",
49 .params = "",
50 .help = "quit the emulator",
51 .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 .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 .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 .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 you want to abort the operation immediately"
111 "\n\t\t\t instead of keep running until data is in sync)",
112 .cmd = hmp_block_job_cancel,
113 },
114
115 STEXI
116 @item block_job_cancel
117 @findex block_job_cancel
118 Stop an active background block operation (streaming, mirroring).
119 ETEXI
120
121 {
122 .name = "block_job_complete",
123 .args_type = "device:B",
124 .params = "device",
125 .help = "stop an active background block operation",
126 .cmd = hmp_block_job_complete,
127 },
128
129 STEXI
130 @item block_job_complete
131 @findex block_job_complete
132 Manually trigger completion of an active background block operation.
133 For mirroring, this will switch the device to the destination path.
134 ETEXI
135
136 {
137 .name = "block_job_pause",
138 .args_type = "device:B",
139 .params = "device",
140 .help = "pause an active background block operation",
141 .cmd = hmp_block_job_pause,
142 },
143
144 STEXI
145 @item block_job_pause
146 @findex block_job_pause
147 Pause an active block streaming operation.
148 ETEXI
149
150 {
151 .name = "block_job_resume",
152 .args_type = "device:B",
153 .params = "device",
154 .help = "resume a paused background block operation",
155 .cmd = hmp_block_job_resume,
156 },
157
158 STEXI
159 @item block_job_resume
160 @findex block_job_resume
161 Resume a paused block streaming operation.
162 ETEXI
163
164 {
165 .name = "eject",
166 .args_type = "force:-f,device:B",
167 .params = "[-f] device",
168 .help = "eject a removable medium (use -f to force it)",
169 .cmd = hmp_eject,
170 },
171
172 STEXI
173 @item eject [-f] @var{device}
174 @findex eject
175 Eject a removable medium (use -f to force it).
176 ETEXI
177
178 {
179 .name = "drive_del",
180 .args_type = "id:B",
181 .params = "device",
182 .help = "remove host block device",
183 .cmd = hmp_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?,read-only-mode:s?",
200 .params = "device filename [format [read-only-mode]]",
201 .help = "change a removable medium, optional format",
202 .cmd = hmp_change,
203 },
204
205 STEXI
206 @item change @var{device} @var{setting}
207 @findex change
208 Change the configuration of a device.
209
210 @table @option
211 @item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]]
212 Change the medium for a removable disk device to point to @var{filename}. eg
213
214 @example
215 (qemu) change ide1-cd0 /path/to/some.iso
216 @end example
217
218 @var{format} is optional.
219
220 @var{read-only-mode} may be used to change the read-only status of the device.
221 It accepts the following values:
222
223 @table @var
224 @item retain
225 Retains the current status; this is the default.
226
227 @item read-only
228 Makes the device read-only.
229
230 @item read-write
231 Makes the device writable.
232 @end table
233
234 @item change vnc @var{display},@var{options}
235 Change the configuration of the VNC server. The valid syntax for @var{display}
236 and @var{options} are described at @ref{sec_invocation}. eg
237
238 @example
239 (qemu) change vnc localhost:1
240 @end example
241
242 @item change vnc password [@var{password}]
243
244 Change the password associated with the VNC server. If the new password is not
245 supplied, the monitor will prompt for it to be entered. VNC passwords are only
246 significant up to 8 letters. eg
247
248 @example
249 (qemu) change vnc password
250 Password: ********
251 @end example
252
253 @end table
254 ETEXI
255
256 {
257 .name = "screendump",
258 .args_type = "filename:F,device:s?,head:i?",
259 .params = "filename [device [head]]",
260 .help = "save screen from head 'head' of display device 'device' "
261 "into PPM image 'filename'",
262 .cmd = hmp_screendump,
263 },
264
265 STEXI
266 @item screendump @var{filename}
267 @findex screendump
268 Save screen into PPM image @var{filename}.
269 ETEXI
270
271 {
272 .name = "logfile",
273 .args_type = "filename:F",
274 .params = "filename",
275 .help = "output logs to 'filename'",
276 .cmd = hmp_logfile,
277 },
278
279 STEXI
280 @item logfile @var{filename}
281 @findex logfile
282 Output logs to @var{filename}.
283 ETEXI
284
285 {
286 .name = "trace-event",
287 .args_type = "name:s,option:b,vcpu:i?",
288 .params = "name on|off [vcpu]",
289 .help = "changes status of a specific trace event "
290 "(vcpu: vCPU to set, default is all)",
291 .cmd = hmp_trace_event,
292 .command_completion = trace_event_completion,
293 },
294
295 STEXI
296 @item trace-event
297 @findex trace-event
298 changes status of a trace event
299 ETEXI
300
301 #if defined(CONFIG_TRACE_SIMPLE)
302 {
303 .name = "trace-file",
304 .args_type = "op:s?,arg:F?",
305 .params = "on|off|flush|set [arg]",
306 .help = "open, close, or flush trace file, or set a new file name",
307 .cmd = hmp_trace_file,
308 },
309
310 STEXI
311 @item trace-file on|off|flush
312 @findex trace-file
313 Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed.
314 ETEXI
315 #endif
316
317 {
318 .name = "log",
319 .args_type = "items:s",
320 .params = "item1[,...]",
321 .help = "activate logging of the specified items",
322 .cmd = hmp_log,
323 },
324
325 STEXI
326 @item log @var{item1}[,...]
327 @findex log
328 Activate logging of the specified items.
329 ETEXI
330
331 {
332 .name = "savevm",
333 .args_type = "name:s?",
334 .params = "[tag|id]",
335 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
336 .cmd = hmp_savevm,
337 },
338
339 STEXI
340 @item savevm [@var{tag}|@var{id}]
341 @findex savevm
342 Create a snapshot of the whole virtual machine. If @var{tag} is
343 provided, it is used as human readable identifier. If there is already
344 a snapshot with the same tag or ID, it is replaced. More info at
345 @ref{vm_snapshots}.
346 ETEXI
347
348 {
349 .name = "loadvm",
350 .args_type = "name:s",
351 .params = "tag|id",
352 .help = "restore a VM snapshot from its tag or id",
353 .cmd = hmp_loadvm,
354 .command_completion = loadvm_completion,
355 },
356
357 STEXI
358 @item loadvm @var{tag}|@var{id}
359 @findex loadvm
360 Set the whole virtual machine to the snapshot identified by the tag
361 @var{tag} or the unique snapshot ID @var{id}.
362 ETEXI
363
364 {
365 .name = "delvm",
366 .args_type = "name:s",
367 .params = "tag|id",
368 .help = "delete a VM snapshot from its tag or id",
369 .cmd = hmp_delvm,
370 .command_completion = delvm_completion,
371 },
372
373 STEXI
374 @item delvm @var{tag}|@var{id}
375 @findex delvm
376 Delete the snapshot identified by @var{tag} or @var{id}.
377 ETEXI
378
379 {
380 .name = "singlestep",
381 .args_type = "option:s?",
382 .params = "[on|off]",
383 .help = "run emulation in singlestep mode or switch to normal mode",
384 .cmd = hmp_singlestep,
385 },
386
387 STEXI
388 @item singlestep [off]
389 @findex singlestep
390 Run the emulation in single step mode.
391 If called with option off, the emulation returns to normal mode.
392 ETEXI
393
394 {
395 .name = "stop",
396 .args_type = "",
397 .params = "",
398 .help = "stop emulation",
399 .cmd = hmp_stop,
400 },
401
402 STEXI
403 @item stop
404 @findex stop
405 Stop emulation.
406 ETEXI
407
408 {
409 .name = "c|cont",
410 .args_type = "",
411 .params = "",
412 .help = "resume emulation",
413 .cmd = hmp_cont,
414 },
415
416 STEXI
417 @item c or cont
418 @findex cont
419 Resume emulation.
420 ETEXI
421
422 {
423 .name = "system_wakeup",
424 .args_type = "",
425 .params = "",
426 .help = "wakeup guest from suspend",
427 .cmd = hmp_system_wakeup,
428 },
429
430 STEXI
431 @item system_wakeup
432 @findex system_wakeup
433 Wakeup guest from suspend.
434 ETEXI
435
436 {
437 .name = "gdbserver",
438 .args_type = "device:s?",
439 .params = "[device]",
440 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
441 .cmd = hmp_gdbserver,
442 },
443
444 STEXI
445 @item gdbserver [@var{port}]
446 @findex gdbserver
447 Start gdbserver session (default @var{port}=1234)
448 ETEXI
449
450 {
451 .name = "x",
452 .args_type = "fmt:/,addr:l",
453 .params = "/fmt addr",
454 .help = "virtual memory dump starting at 'addr'",
455 .cmd = hmp_memory_dump,
456 },
457
458 STEXI
459 @item x/fmt @var{addr}
460 @findex x
461 Virtual memory dump starting at @var{addr}.
462 ETEXI
463
464 {
465 .name = "xp",
466 .args_type = "fmt:/,addr:l",
467 .params = "/fmt addr",
468 .help = "physical memory dump starting at 'addr'",
469 .cmd = hmp_physical_memory_dump,
470 },
471
472 STEXI
473 @item xp /@var{fmt} @var{addr}
474 @findex xp
475 Physical memory dump starting at @var{addr}.
476
477 @var{fmt} is a format which tells the command how to format the
478 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
479
480 @table @var
481 @item count
482 is the number of items to be dumped.
483
484 @item format
485 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
486 c (char) or i (asm instruction).
487
488 @item size
489 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
490 @code{h} or @code{w} can be specified with the @code{i} format to
491 respectively select 16 or 32 bit code instruction size.
492
493 @end table
494
495 Examples:
496 @itemize
497 @item
498 Dump 10 instructions at the current instruction pointer:
499 @example
500 (qemu) x/10i $eip
501 0x90107063: ret
502 0x90107064: sti
503 0x90107065: lea 0x0(%esi,1),%esi
504 0x90107069: lea 0x0(%edi,1),%edi
505 0x90107070: ret
506 0x90107071: jmp 0x90107080
507 0x90107073: nop
508 0x90107074: nop
509 0x90107075: nop
510 0x90107076: nop
511 @end example
512
513 @item
514 Dump 80 16 bit values at the start of the video memory.
515 @smallexample
516 (qemu) xp/80hx 0xb8000
517 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
518 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
519 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
520 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
521 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
522 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
523 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
524 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
525 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
526 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
527 @end smallexample
528 @end itemize
529 ETEXI
530
531 {
532 .name = "gpa2hva",
533 .args_type = "addr:l",
534 .params = "addr",
535 .help = "print the host virtual address corresponding to a guest physical address",
536 .cmd = hmp_gpa2hva,
537 },
538
539 STEXI
540 @item gpa2hva @var{addr}
541 @findex gpa2hva
542 Print the host virtual address at which the guest's physical address @var{addr}
543 is mapped.
544 ETEXI
545
546 #ifdef CONFIG_LINUX
547 {
548 .name = "gpa2hpa",
549 .args_type = "addr:l",
550 .params = "addr",
551 .help = "print the host physical address corresponding to a guest physical address",
552 .cmd = hmp_gpa2hpa,
553 },
554 #endif
555
556 STEXI
557 @item gpa2hpa @var{addr}
558 @findex gpa2hpa
559 Print the host physical address at which the guest's physical address @var{addr}
560 is mapped.
561 ETEXI
562
563 {
564 .name = "p|print",
565 .args_type = "fmt:/,val:l",
566 .params = "/fmt expr",
567 .help = "print expression value (use $reg for CPU register access)",
568 .cmd = do_print,
569 },
570
571 STEXI
572 @item p or print/@var{fmt} @var{expr}
573 @findex print
574 Print expression value. Only the @var{format} part of @var{fmt} is
575 used.
576 ETEXI
577
578 {
579 .name = "i",
580 .args_type = "fmt:/,addr:i,index:i.",
581 .params = "/fmt addr",
582 .help = "I/O port read",
583 .cmd = hmp_ioport_read,
584 },
585
586 STEXI
587 @item i/@var{fmt} @var{addr} [.@var{index}]
588 @findex i
589 Read I/O port.
590 ETEXI
591
592 {
593 .name = "o",
594 .args_type = "fmt:/,addr:i,val:i",
595 .params = "/fmt addr value",
596 .help = "I/O port write",
597 .cmd = hmp_ioport_write,
598 },
599
600 STEXI
601 @item o/@var{fmt} @var{addr} @var{val}
602 @findex o
603 Write to I/O port.
604 ETEXI
605
606 {
607 .name = "sendkey",
608 .args_type = "keys:s,hold-time:i?",
609 .params = "keys [hold_ms]",
610 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
611 .cmd = hmp_sendkey,
612 .command_completion = sendkey_completion,
613 },
614
615 STEXI
616 @item sendkey @var{keys}
617 @findex sendkey
618 Send @var{keys} to the guest. @var{keys} could be the name of the
619 key or the raw value in hexadecimal format. Use @code{-} to press
620 several keys simultaneously. Example:
621 @example
622 sendkey ctrl-alt-f1
623 @end example
624
625 This command is useful to send keys that your graphical user interface
626 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
627 ETEXI
628
629 {
630 .name = "system_reset",
631 .args_type = "",
632 .params = "",
633 .help = "reset the system",
634 .cmd = hmp_system_reset,
635 },
636
637 STEXI
638 @item system_reset
639 @findex system_reset
640 Reset the system.
641 ETEXI
642
643 {
644 .name = "system_powerdown",
645 .args_type = "",
646 .params = "",
647 .help = "send system power down event",
648 .cmd = hmp_system_powerdown,
649 },
650
651 STEXI
652 @item system_powerdown
653 @findex system_powerdown
654 Power down the system (if supported).
655 ETEXI
656
657 {
658 .name = "sum",
659 .args_type = "start:i,size:i",
660 .params = "addr size",
661 .help = "compute the checksum of a memory region",
662 .cmd = hmp_sum,
663 },
664
665 STEXI
666 @item sum @var{addr} @var{size}
667 @findex sum
668 Compute the checksum of a memory region.
669 ETEXI
670
671 {
672 .name = "device_add",
673 .args_type = "device:O",
674 .params = "driver[,prop=value][,...]",
675 .help = "add device, like -device on the command line",
676 .cmd = hmp_device_add,
677 .command_completion = device_add_completion,
678 },
679
680 STEXI
681 @item device_add @var{config}
682 @findex device_add
683 Add device.
684 ETEXI
685
686 {
687 .name = "device_del",
688 .args_type = "id:s",
689 .params = "device",
690 .help = "remove device",
691 .cmd = hmp_device_del,
692 .command_completion = device_del_completion,
693 },
694
695 STEXI
696 @item device_del @var{id}
697 @findex device_del
698 Remove device @var{id}. @var{id} may be a short ID
699 or a QOM object path.
700 ETEXI
701
702 {
703 .name = "cpu",
704 .args_type = "index:i",
705 .params = "index",
706 .help = "set the default CPU",
707 .cmd = hmp_cpu,
708 },
709
710 STEXI
711 @item cpu @var{index}
712 @findex cpu
713 Set the default CPU.
714 ETEXI
715
716 {
717 .name = "mouse_move",
718 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
719 .params = "dx dy [dz]",
720 .help = "send mouse move events",
721 .cmd = hmp_mouse_move,
722 },
723
724 STEXI
725 @item mouse_move @var{dx} @var{dy} [@var{dz}]
726 @findex mouse_move
727 Move the active mouse to the specified coordinates @var{dx} @var{dy}
728 with optional scroll axis @var{dz}.
729 ETEXI
730
731 {
732 .name = "mouse_button",
733 .args_type = "button_state:i",
734 .params = "state",
735 .help = "change mouse button state (1=L, 2=M, 4=R)",
736 .cmd = hmp_mouse_button,
737 },
738
739 STEXI
740 @item mouse_button @var{val}
741 @findex mouse_button
742 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
743 ETEXI
744
745 {
746 .name = "mouse_set",
747 .args_type = "index:i",
748 .params = "index",
749 .help = "set which mouse device receives events",
750 .cmd = hmp_mouse_set,
751 },
752
753 STEXI
754 @item mouse_set @var{index}
755 @findex mouse_set
756 Set which mouse device receives events at given @var{index}, index
757 can be obtained with
758 @example
759 info mice
760 @end example
761 ETEXI
762
763 {
764 .name = "wavcapture",
765 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?",
766 .params = "path [frequency [bits [channels]]]",
767 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
768 .cmd = hmp_wavcapture,
769 },
770 STEXI
771 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
772 @findex wavcapture
773 Capture audio into @var{filename}. Using sample rate @var{frequency}
774 bits per sample @var{bits} and number of channels @var{channels}.
775
776 Defaults:
777 @itemize @minus
778 @item Sample rate = 44100 Hz - CD quality
779 @item Bits = 16
780 @item Number of channels = 2 - Stereo
781 @end itemize
782 ETEXI
783
784 {
785 .name = "stopcapture",
786 .args_type = "n:i",
787 .params = "capture index",
788 .help = "stop capture",
789 .cmd = hmp_stopcapture,
790 },
791 STEXI
792 @item stopcapture @var{index}
793 @findex stopcapture
794 Stop capture with a given @var{index}, index can be obtained with
795 @example
796 info capture
797 @end example
798 ETEXI
799
800 {
801 .name = "memsave",
802 .args_type = "val:l,size:i,filename:s",
803 .params = "addr size file",
804 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
805 .cmd = hmp_memsave,
806 },
807
808 STEXI
809 @item memsave @var{addr} @var{size} @var{file}
810 @findex memsave
811 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
812 ETEXI
813
814 {
815 .name = "pmemsave",
816 .args_type = "val:l,size:i,filename:s",
817 .params = "addr size file",
818 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
819 .cmd = hmp_pmemsave,
820 },
821
822 STEXI
823 @item pmemsave @var{addr} @var{size} @var{file}
824 @findex pmemsave
825 save to disk physical memory dump starting at @var{addr} of size @var{size}.
826 ETEXI
827
828 {
829 .name = "boot_set",
830 .args_type = "bootdevice:s",
831 .params = "bootdevice",
832 .help = "define new values for the boot device list",
833 .cmd = hmp_boot_set,
834 },
835
836 STEXI
837 @item boot_set @var{bootdevicelist}
838 @findex boot_set
839 Define new values for the boot device list. Those values will override
840 the values specified on the command line through the @code{-boot} option.
841
842 The values that can be specified here depend on the machine type, but are
843 the same that can be specified in the @code{-boot} command line option.
844 ETEXI
845
846 {
847 .name = "nmi",
848 .args_type = "",
849 .params = "",
850 .help = "inject an NMI",
851 .cmd = hmp_nmi,
852 },
853 STEXI
854 @item nmi @var{cpu}
855 @findex nmi
856 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
857
858 ETEXI
859
860 {
861 .name = "ringbuf_write",
862 .args_type = "device:s,data:s",
863 .params = "device data",
864 .help = "Write to a ring buffer character device",
865 .cmd = hmp_ringbuf_write,
866 .command_completion = ringbuf_write_completion,
867 },
868
869 STEXI
870 @item ringbuf_write @var{device} @var{data}
871 @findex ringbuf_write
872 Write @var{data} to ring buffer character device @var{device}.
873 @var{data} must be a UTF-8 string.
874
875 ETEXI
876
877 {
878 .name = "ringbuf_read",
879 .args_type = "device:s,size:i",
880 .params = "device size",
881 .help = "Read from a ring buffer character device",
882 .cmd = hmp_ringbuf_read,
883 .command_completion = ringbuf_write_completion,
884 },
885
886 STEXI
887 @item ringbuf_read @var{device}
888 @findex ringbuf_read
889 Read and print up to @var{size} bytes from ring buffer character
890 device @var{device}.
891 Certain non-printable characters are printed \uXXXX, where XXXX is the
892 character code in hexadecimal. Character \ is printed \\.
893 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
894 NUL characters, after the ring buffer lost data, and when reading
895 stops because the size limit is reached.
896
897 ETEXI
898
899 {
900 .name = "migrate",
901 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
902 .params = "[-d] [-b] [-i] [-r] uri",
903 .help = "migrate to URI (using -d to not wait for completion)"
904 "\n\t\t\t -b for migration without shared storage with"
905 " full copy of disk\n\t\t\t -i for migration without "
906 "shared storage with incremental copy of disk "
907 "(base image shared between src and destination)"
908 "\n\t\t\t -r to resume a paused migration",
909 .cmd = hmp_migrate,
910 },
911
912
913 STEXI
914 @item migrate [-d] [-b] [-i] @var{uri}
915 @findex migrate
916 Migrate to @var{uri} (using -d to not wait for completion).
917 -b for migration with full copy of disk
918 -i for migration with incremental copy of disk (base image is shared)
919 ETEXI
920
921 {
922 .name = "migrate_cancel",
923 .args_type = "",
924 .params = "",
925 .help = "cancel the current VM migration",
926 .cmd = hmp_migrate_cancel,
927 },
928
929 STEXI
930 @item migrate_cancel
931 @findex migrate_cancel
932 Cancel the current VM migration.
933 ETEXI
934
935 {
936 .name = "migrate_continue",
937 .args_type = "state:s",
938 .params = "state",
939 .help = "Continue migration from the given paused state",
940 .cmd = hmp_migrate_continue,
941 },
942 STEXI
943 @item migrate_continue @var{state}
944 @findex migrate_continue
945 Continue migration from the paused state @var{state}
946 ETEXI
947
948 {
949 .name = "migrate_incoming",
950 .args_type = "uri:s",
951 .params = "uri",
952 .help = "Continue an incoming migration from an -incoming defer",
953 .cmd = hmp_migrate_incoming,
954 },
955
956 STEXI
957 @item migrate_incoming @var{uri}
958 @findex migrate_incoming
959 Continue an incoming migration using the @var{uri} (that has the same syntax
960 as the -incoming option).
961 ETEXI
962
963 {
964 .name = "migrate_recover",
965 .args_type = "uri:s",
966 .params = "uri",
967 .help = "Continue a paused incoming postcopy migration",
968 .cmd = hmp_migrate_recover,
969 },
970
971 STEXI
972 @item migrate_recover @var{uri}
973 @findex migrate_recover
974 Continue a paused incoming postcopy migration using the @var{uri}.
975 ETEXI
976
977 {
978 .name = "migrate_pause",
979 .args_type = "",
980 .params = "",
981 .help = "Pause an ongoing migration (postcopy-only)",
982 .cmd = hmp_migrate_pause,
983 },
984
985 STEXI
986 @item migrate_pause
987 @findex migrate_pause
988 Pause an ongoing migration. Currently it only supports postcopy.
989 ETEXI
990
991 {
992 .name = "migrate_set_cache_size",
993 .args_type = "value:o",
994 .params = "value",
995 .help = "set cache size (in bytes) for XBZRLE migrations,"
996 "the cache size will be rounded down to the nearest "
997 "power of 2.\n"
998 "The cache size affects the number of cache misses."
999 "In case of a high cache miss ratio you need to increase"
1000 " the cache size",
1001 .cmd = hmp_migrate_set_cache_size,
1002 },
1003
1004 STEXI
1005 @item migrate_set_cache_size @var{value}
1006 @findex migrate_set_cache_size
1007 Set cache size to @var{value} (in bytes) for xbzrle migrations.
1008 ETEXI
1009
1010 {
1011 .name = "migrate_set_speed",
1012 .args_type = "value:o",
1013 .params = "value",
1014 .help = "set maximum speed (in bytes) for migrations. "
1015 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
1016 .cmd = hmp_migrate_set_speed,
1017 },
1018
1019 STEXI
1020 @item migrate_set_speed @var{value}
1021 @findex migrate_set_speed
1022 Set maximum speed to @var{value} (in bytes) for migrations.
1023 ETEXI
1024
1025 {
1026 .name = "migrate_set_downtime",
1027 .args_type = "value:T",
1028 .params = "value",
1029 .help = "set maximum tolerated downtime (in seconds) for migrations",
1030 .cmd = hmp_migrate_set_downtime,
1031 },
1032
1033 STEXI
1034 @item migrate_set_downtime @var{second}
1035 @findex migrate_set_downtime
1036 Set maximum tolerated downtime (in seconds) for migration.
1037 ETEXI
1038
1039 {
1040 .name = "migrate_set_capability",
1041 .args_type = "capability:s,state:b",
1042 .params = "capability state",
1043 .help = "Enable/Disable the usage of a capability for migration",
1044 .cmd = hmp_migrate_set_capability,
1045 .command_completion = migrate_set_capability_completion,
1046 },
1047
1048 STEXI
1049 @item migrate_set_capability @var{capability} @var{state}
1050 @findex migrate_set_capability
1051 Enable/Disable the usage of a capability @var{capability} for migration.
1052 ETEXI
1053
1054 {
1055 .name = "migrate_set_parameter",
1056 .args_type = "parameter:s,value:s",
1057 .params = "parameter value",
1058 .help = "Set the parameter for migration",
1059 .cmd = hmp_migrate_set_parameter,
1060 .command_completion = migrate_set_parameter_completion,
1061 },
1062
1063 STEXI
1064 @item migrate_set_parameter @var{parameter} @var{value}
1065 @findex migrate_set_parameter
1066 Set the parameter @var{parameter} for migration.
1067 ETEXI
1068
1069 {
1070 .name = "migrate_start_postcopy",
1071 .args_type = "",
1072 .params = "",
1073 .help = "Followup to a migration command to switch the migration"
1074 " to postcopy mode. The postcopy-ram capability must "
1075 "be set on both source and destination before the "
1076 "original migration command .",
1077 .cmd = hmp_migrate_start_postcopy,
1078 },
1079
1080 STEXI
1081 @item migrate_start_postcopy
1082 @findex migrate_start_postcopy
1083 Switch in-progress migration to postcopy mode. Ignored after the end of
1084 migration (or once already in postcopy).
1085 ETEXI
1086
1087 {
1088 .name = "x_colo_lost_heartbeat",
1089 .args_type = "",
1090 .params = "",
1091 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1092 "a failover or takeover is needed.",
1093 .cmd = hmp_x_colo_lost_heartbeat,
1094 },
1095
1096 STEXI
1097 @item x_colo_lost_heartbeat
1098 @findex x_colo_lost_heartbeat
1099 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1100 ETEXI
1101
1102 {
1103 .name = "client_migrate_info",
1104 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1105 .params = "protocol hostname port tls-port cert-subject",
1106 .help = "set migration information for remote display",
1107 .cmd = hmp_client_migrate_info,
1108 },
1109
1110 STEXI
1111 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
1112 @findex client_migrate_info
1113 Set migration information for remote display. This makes the server
1114 ask the client to automatically reconnect using the new parameters
1115 once migration finished successfully. Only implemented for SPICE.
1116 ETEXI
1117
1118 {
1119 .name = "dump-guest-memory",
1120 .args_type = "paging:-p,detach:-d,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1121 .params = "[-p] [-d] [-z|-l|-s] filename [begin length]",
1122 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1123 "-p: do paging to get guest's memory mapping.\n\t\t\t"
1124 "-d: return immediately (do not wait for completion).\n\t\t\t"
1125 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1126 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1127 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1128 "begin: the starting physical address.\n\t\t\t"
1129 "length: the memory size, in bytes.",
1130 .cmd = hmp_dump_guest_memory,
1131 },
1132
1133
1134 STEXI
1135 @item dump-guest-memory [-p] @var{filename} @var{begin} @var{length}
1136 @item dump-guest-memory [-z|-l|-s] @var{filename}
1137 @findex dump-guest-memory
1138 Dump guest memory to @var{protocol}. The file can be processed with crash or
1139 gdb. Without -z|-l|-s, the dump format is ELF.
1140 -p: do paging to get guest's memory mapping.
1141 -z: dump in kdump-compressed format, with zlib compression.
1142 -l: dump in kdump-compressed format, with lzo compression.
1143 -s: dump in kdump-compressed format, with snappy compression.
1144 filename: dump file name.
1145 begin: the starting physical address. It's optional, and should be
1146 specified together with length.
1147 length: the memory size, in bytes. It's optional, and should be specified
1148 together with begin.
1149 ETEXI
1150
1151 #if defined(TARGET_S390X)
1152 {
1153 .name = "dump-skeys",
1154 .args_type = "filename:F",
1155 .params = "",
1156 .help = "Save guest storage keys into file 'filename'.\n",
1157 .cmd = hmp_dump_skeys,
1158 },
1159 #endif
1160
1161 STEXI
1162 @item dump-skeys @var{filename}
1163 @findex dump-skeys
1164 Save guest storage keys to a file.
1165 ETEXI
1166
1167 #if defined(TARGET_S390X)
1168 {
1169 .name = "migration_mode",
1170 .args_type = "mode:i",
1171 .params = "mode",
1172 .help = "Enables or disables migration mode\n",
1173 .cmd = hmp_migrationmode,
1174 },
1175 #endif
1176
1177 STEXI
1178 @item migration_mode @var{mode}
1179 @findex migration_mode
1180 Enables or disables migration mode.
1181 ETEXI
1182
1183 {
1184 .name = "snapshot_blkdev",
1185 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1186 .params = "[-n] device [new-image-file] [format]",
1187 .help = "initiates a live snapshot\n\t\t\t"
1188 "of device. If a new image file is specified, the\n\t\t\t"
1189 "new image file will become the new root image.\n\t\t\t"
1190 "If format is specified, the snapshot file will\n\t\t\t"
1191 "be created in that format.\n\t\t\t"
1192 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1193 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1194 "recreating it from scratch.",
1195 .cmd = hmp_snapshot_blkdev,
1196 },
1197
1198 STEXI
1199 @item snapshot_blkdev
1200 @findex snapshot_blkdev
1201 Snapshot device, using snapshot file as target if provided
1202 ETEXI
1203
1204 {
1205 .name = "snapshot_blkdev_internal",
1206 .args_type = "device:B,name:s",
1207 .params = "device name",
1208 .help = "take an internal snapshot of device.\n\t\t\t"
1209 "The format of the image used by device must\n\t\t\t"
1210 "support it, such as qcow2.\n\t\t\t",
1211 .cmd = hmp_snapshot_blkdev_internal,
1212 },
1213
1214 STEXI
1215 @item snapshot_blkdev_internal
1216 @findex snapshot_blkdev_internal
1217 Take an internal snapshot on device if it support
1218 ETEXI
1219
1220 {
1221 .name = "snapshot_delete_blkdev_internal",
1222 .args_type = "device:B,name:s,id:s?",
1223 .params = "device name [id]",
1224 .help = "delete an internal snapshot of device.\n\t\t\t"
1225 "If id is specified, qemu will try delete\n\t\t\t"
1226 "the snapshot matching both id and name.\n\t\t\t"
1227 "The format of the image used by device must\n\t\t\t"
1228 "support it, such as qcow2.\n\t\t\t",
1229 .cmd = hmp_snapshot_delete_blkdev_internal,
1230 },
1231
1232 STEXI
1233 @item snapshot_delete_blkdev_internal
1234 @findex snapshot_delete_blkdev_internal
1235 Delete an internal snapshot on device if it support
1236 ETEXI
1237
1238 {
1239 .name = "drive_mirror",
1240 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1241 .params = "[-n] [-f] device target [format]",
1242 .help = "initiates live storage\n\t\t\t"
1243 "migration for a device. The device's contents are\n\t\t\t"
1244 "copied to the new image file, including data that\n\t\t\t"
1245 "is written after the command is started.\n\t\t\t"
1246 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1247 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1248 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1249 "so that the result does not need a backing file.\n\t\t\t",
1250 .cmd = hmp_drive_mirror,
1251 },
1252 STEXI
1253 @item drive_mirror
1254 @findex drive_mirror
1255 Start mirroring a block device's writes to a new destination,
1256 using the specified target.
1257 ETEXI
1258
1259 {
1260 .name = "drive_backup",
1261 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1262 .params = "[-n] [-f] [-c] device target [format]",
1263 .help = "initiates a point-in-time\n\t\t\t"
1264 "copy for a device. The device's contents are\n\t\t\t"
1265 "copied to the new image file, excluding data that\n\t\t\t"
1266 "is written after the command is started.\n\t\t\t"
1267 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1268 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1269 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1270 "so that the result does not need a backing file.\n\t\t\t"
1271 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1272 "(if the target format supports it).\n\t\t\t",
1273 .cmd = hmp_drive_backup,
1274 },
1275 STEXI
1276 @item drive_backup
1277 @findex drive_backup
1278 Start a point-in-time copy of a block device to a specificed target.
1279 ETEXI
1280
1281 {
1282 .name = "drive_add",
1283 .args_type = "node:-n,pci_addr:s,opts:s",
1284 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
1285 "[file=file][,if=type][,bus=n]\n"
1286 "[,unit=m][,media=d][,index=i]\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 .flags = "p",
1832 },
1833
1834 STEXI
1835 @item qom-list [@var{path}]
1836 Print QOM properties of object at location @var{path}
1837 ETEXI
1838
1839 {
1840 .name = "qom-set",
1841 .args_type = "path:s,property:s,value:s",
1842 .params = "path property value",
1843 .help = "set QOM property",
1844 .cmd = hmp_qom_set,
1845 .flags = "p",
1846 },
1847
1848 STEXI
1849 @item qom-set @var{path} @var{property} @var{value}
1850 Set QOM property @var{property} of object at location @var{path} to value @var{value}
1851 ETEXI
1852
1853 {
1854 .name = "info",
1855 .args_type = "item:s?",
1856 .params = "[subcommand]",
1857 .help = "show various information about the system state",
1858 .cmd = hmp_info_help,
1859 .sub_table = info_cmds,
1860 .flags = "p",
1861 },
1862
1863 STEXI
1864 @end table
1865 ETEXI