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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 = "exit_preconfig",
62 .args_type = "",
63 .params = "",
64 .help = "exit the preconfig state",
65 .cmd = hmp_exit_preconfig,
66 .flags = "p",
67 },
68
69 STEXI
70 @item exit_preconfig
71 @findex exit_preconfig
72 This command makes QEMU exit the preconfig state and proceed with
73 VM initialization using configuration data provided on the command line
74 and via the QMP monitor during the preconfig state. The command is only
75 available during the preconfig state (i.e. when the --preconfig command
76 line option was in use).
77 ETEXI
78
79 {
80 .name = "block_resize",
81 .args_type = "device:B,size:o",
82 .params = "device size",
83 .help = "resize a block image",
84 .cmd = hmp_block_resize,
85 },
86
87 STEXI
88 @item block_resize
89 @findex block_resize
90 Resize a block image while a guest is running. Usually requires guest
91 action to see the updated size. Resize to a lower size is supported,
92 but should be used with extreme caution. Note that this command only
93 resizes image files, it can not resize block devices like LVM volumes.
94 ETEXI
95
96 {
97 .name = "block_stream",
98 .args_type = "device:B,speed:o?,base:s?",
99 .params = "device [speed [base]]",
100 .help = "copy data from a backing file into a block device",
101 .cmd = hmp_block_stream,
102 },
103
104 STEXI
105 @item block_stream
106 @findex block_stream
107 Copy data from a backing file into a block device.
108 ETEXI
109
110 {
111 .name = "block_job_set_speed",
112 .args_type = "device:B,speed:o",
113 .params = "device speed",
114 .help = "set maximum speed for a background block operation",
115 .cmd = hmp_block_job_set_speed,
116 },
117
118 STEXI
119 @item block_job_set_speed
120 @findex block_job_set_speed
121 Set maximum speed for a background block operation.
122 ETEXI
123
124 {
125 .name = "block_job_cancel",
126 .args_type = "force:-f,device:B",
127 .params = "[-f] device",
128 .help = "stop an active background block operation (use -f"
129 "\n\t\t\t if you want to abort the operation immediately"
130 "\n\t\t\t instead of keep running until data is in sync)",
131 .cmd = hmp_block_job_cancel,
132 },
133
134 STEXI
135 @item block_job_cancel
136 @findex block_job_cancel
137 Stop an active background block operation (streaming, mirroring).
138 ETEXI
139
140 {
141 .name = "block_job_complete",
142 .args_type = "device:B",
143 .params = "device",
144 .help = "stop an active background block operation",
145 .cmd = hmp_block_job_complete,
146 },
147
148 STEXI
149 @item block_job_complete
150 @findex block_job_complete
151 Manually trigger completion of an active background block operation.
152 For mirroring, this will switch the device to the destination path.
153 ETEXI
154
155 {
156 .name = "block_job_pause",
157 .args_type = "device:B",
158 .params = "device",
159 .help = "pause an active background block operation",
160 .cmd = hmp_block_job_pause,
161 },
162
163 STEXI
164 @item block_job_pause
165 @findex block_job_pause
166 Pause an active block streaming operation.
167 ETEXI
168
169 {
170 .name = "block_job_resume",
171 .args_type = "device:B",
172 .params = "device",
173 .help = "resume a paused background block operation",
174 .cmd = hmp_block_job_resume,
175 },
176
177 STEXI
178 @item block_job_resume
179 @findex block_job_resume
180 Resume a paused block streaming operation.
181 ETEXI
182
183 {
184 .name = "eject",
185 .args_type = "force:-f,device:B",
186 .params = "[-f] device",
187 .help = "eject a removable medium (use -f to force it)",
188 .cmd = hmp_eject,
189 },
190
191 STEXI
192 @item eject [-f] @var{device}
193 @findex eject
194 Eject a removable medium (use -f to force it).
195 ETEXI
196
197 {
198 .name = "drive_del",
199 .args_type = "id:B",
200 .params = "device",
201 .help = "remove host block device",
202 .cmd = hmp_drive_del,
203 },
204
205 STEXI
206 @item drive_del @var{device}
207 @findex drive_del
208 Remove host block device. The result is that guest generated IO is no longer
209 submitted against the host device underlying the disk. Once a drive has
210 been deleted, the QEMU Block layer returns -EIO which results in IO
211 errors in the guest for applications that are reading/writing to the device.
212 These errors are always reported to the guest, regardless of the drive's error
213 actions (drive options rerror, werror).
214 ETEXI
215
216 {
217 .name = "change",
218 .args_type = "device:B,target:F,arg:s?,read-only-mode:s?",
219 .params = "device filename [format [read-only-mode]]",
220 .help = "change a removable medium, optional format",
221 .cmd = hmp_change,
222 },
223
224 STEXI
225 @item change @var{device} @var{setting}
226 @findex change
227 Change the configuration of a device.
228
229 @table @option
230 @item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]]
231 Change the medium for a removable disk device to point to @var{filename}. eg
232
233 @example
234 (qemu) change ide1-cd0 /path/to/some.iso
235 @end example
236
237 @var{format} is optional.
238
239 @var{read-only-mode} may be used to change the read-only status of the device.
240 It accepts the following values:
241
242 @table @var
243 @item retain
244 Retains the current status; this is the default.
245
246 @item read-only
247 Makes the device read-only.
248
249 @item read-write
250 Makes the device writable.
251 @end table
252
253 @item change vnc @var{display},@var{options}
254 Change the configuration of the VNC server. The valid syntax for @var{display}
255 and @var{options} are described at @ref{sec_invocation}. eg
256
257 @example
258 (qemu) change vnc localhost:1
259 @end example
260
261 @item change vnc password [@var{password}]
262
263 Change the password associated with the VNC server. If the new password is not
264 supplied, the monitor will prompt for it to be entered. VNC passwords are only
265 significant up to 8 letters. eg
266
267 @example
268 (qemu) change vnc password
269 Password: ********
270 @end example
271
272 @end table
273 ETEXI
274
275 {
276 .name = "screendump",
277 .args_type = "filename:F,device:s?,head:i?",
278 .params = "filename [device [head]]",
279 .help = "save screen from head 'head' of display device 'device' "
280 "into PPM image 'filename'",
281 .cmd = hmp_screendump,
282 },
283
284 STEXI
285 @item screendump @var{filename}
286 @findex screendump
287 Save screen into PPM image @var{filename}.
288 ETEXI
289
290 {
291 .name = "logfile",
292 .args_type = "filename:F",
293 .params = "filename",
294 .help = "output logs to 'filename'",
295 .cmd = hmp_logfile,
296 },
297
298 STEXI
299 @item logfile @var{filename}
300 @findex logfile
301 Output logs to @var{filename}.
302 ETEXI
303
304 {
305 .name = "trace-event",
306 .args_type = "name:s,option:b,vcpu:i?",
307 .params = "name on|off [vcpu]",
308 .help = "changes status of a specific trace event "
309 "(vcpu: vCPU to set, default is all)",
310 .cmd = hmp_trace_event,
311 .command_completion = trace_event_completion,
312 },
313
314 STEXI
315 @item trace-event
316 @findex trace-event
317 changes status of a trace event
318 ETEXI
319
320 #if defined(CONFIG_TRACE_SIMPLE)
321 {
322 .name = "trace-file",
323 .args_type = "op:s?,arg:F?",
324 .params = "on|off|flush|set [arg]",
325 .help = "open, close, or flush trace file, or set a new file name",
326 .cmd = hmp_trace_file,
327 },
328
329 STEXI
330 @item trace-file on|off|flush
331 @findex trace-file
332 Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed.
333 ETEXI
334 #endif
335
336 {
337 .name = "log",
338 .args_type = "items:s",
339 .params = "item1[,...]",
340 .help = "activate logging of the specified items",
341 .cmd = hmp_log,
342 },
343
344 STEXI
345 @item log @var{item1}[,...]
346 @findex log
347 Activate logging of the specified items.
348 ETEXI
349
350 {
351 .name = "savevm",
352 .args_type = "name:s?",
353 .params = "[tag|id]",
354 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
355 .cmd = hmp_savevm,
356 },
357
358 STEXI
359 @item savevm [@var{tag}|@var{id}]
360 @findex savevm
361 Create a snapshot of the whole virtual machine. If @var{tag} is
362 provided, it is used as human readable identifier. If there is already
363 a snapshot with the same tag or ID, it is replaced. More info at
364 @ref{vm_snapshots}.
365 ETEXI
366
367 {
368 .name = "loadvm",
369 .args_type = "name:s",
370 .params = "tag|id",
371 .help = "restore a VM snapshot from its tag or id",
372 .cmd = hmp_loadvm,
373 .command_completion = loadvm_completion,
374 },
375
376 STEXI
377 @item loadvm @var{tag}|@var{id}
378 @findex loadvm
379 Set the whole virtual machine to the snapshot identified by the tag
380 @var{tag} or the unique snapshot ID @var{id}.
381 ETEXI
382
383 {
384 .name = "delvm",
385 .args_type = "name:s",
386 .params = "tag|id",
387 .help = "delete a VM snapshot from its tag or id",
388 .cmd = hmp_delvm,
389 .command_completion = delvm_completion,
390 },
391
392 STEXI
393 @item delvm @var{tag}|@var{id}
394 @findex delvm
395 Delete the snapshot identified by @var{tag} or @var{id}.
396 ETEXI
397
398 {
399 .name = "singlestep",
400 .args_type = "option:s?",
401 .params = "[on|off]",
402 .help = "run emulation in singlestep mode or switch to normal mode",
403 .cmd = hmp_singlestep,
404 },
405
406 STEXI
407 @item singlestep [off]
408 @findex singlestep
409 Run the emulation in single step mode.
410 If called with option off, the emulation returns to normal mode.
411 ETEXI
412
413 {
414 .name = "stop",
415 .args_type = "",
416 .params = "",
417 .help = "stop emulation",
418 .cmd = hmp_stop,
419 },
420
421 STEXI
422 @item stop
423 @findex stop
424 Stop emulation.
425 ETEXI
426
427 {
428 .name = "c|cont",
429 .args_type = "",
430 .params = "",
431 .help = "resume emulation",
432 .cmd = hmp_cont,
433 },
434
435 STEXI
436 @item c or cont
437 @findex cont
438 Resume emulation.
439 ETEXI
440
441 {
442 .name = "system_wakeup",
443 .args_type = "",
444 .params = "",
445 .help = "wakeup guest from suspend",
446 .cmd = hmp_system_wakeup,
447 },
448
449 STEXI
450 @item system_wakeup
451 @findex system_wakeup
452 Wakeup guest from suspend.
453 ETEXI
454
455 {
456 .name = "gdbserver",
457 .args_type = "device:s?",
458 .params = "[device]",
459 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
460 .cmd = hmp_gdbserver,
461 },
462
463 STEXI
464 @item gdbserver [@var{port}]
465 @findex gdbserver
466 Start gdbserver session (default @var{port}=1234)
467 ETEXI
468
469 {
470 .name = "x",
471 .args_type = "fmt:/,addr:l",
472 .params = "/fmt addr",
473 .help = "virtual memory dump starting at 'addr'",
474 .cmd = hmp_memory_dump,
475 },
476
477 STEXI
478 @item x/fmt @var{addr}
479 @findex x
480 Virtual memory dump starting at @var{addr}.
481 ETEXI
482
483 {
484 .name = "xp",
485 .args_type = "fmt:/,addr:l",
486 .params = "/fmt addr",
487 .help = "physical memory dump starting at 'addr'",
488 .cmd = hmp_physical_memory_dump,
489 },
490
491 STEXI
492 @item xp /@var{fmt} @var{addr}
493 @findex xp
494 Physical memory dump starting at @var{addr}.
495
496 @var{fmt} is a format which tells the command how to format the
497 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
498
499 @table @var
500 @item count
501 is the number of items to be dumped.
502
503 @item format
504 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
505 c (char) or i (asm instruction).
506
507 @item size
508 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
509 @code{h} or @code{w} can be specified with the @code{i} format to
510 respectively select 16 or 32 bit code instruction size.
511
512 @end table
513
514 Examples:
515 @itemize
516 @item
517 Dump 10 instructions at the current instruction pointer:
518 @example
519 (qemu) x/10i $eip
520 0x90107063: ret
521 0x90107064: sti
522 0x90107065: lea 0x0(%esi,1),%esi
523 0x90107069: lea 0x0(%edi,1),%edi
524 0x90107070: ret
525 0x90107071: jmp 0x90107080
526 0x90107073: nop
527 0x90107074: nop
528 0x90107075: nop
529 0x90107076: nop
530 @end example
531
532 @item
533 Dump 80 16 bit values at the start of the video memory.
534 @smallexample
535 (qemu) xp/80hx 0xb8000
536 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
537 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
538 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
539 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
540 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
541 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
542 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
543 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
544 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
545 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
546 @end smallexample
547 @end itemize
548 ETEXI
549
550 {
551 .name = "gpa2hva",
552 .args_type = "addr:l",
553 .params = "addr",
554 .help = "print the host virtual address corresponding to a guest physical address",
555 .cmd = hmp_gpa2hva,
556 },
557
558 STEXI
559 @item gpa2hva @var{addr}
560 @findex gpa2hva
561 Print the host virtual address at which the guest's physical address @var{addr}
562 is mapped.
563 ETEXI
564
565 #ifdef CONFIG_LINUX
566 {
567 .name = "gpa2hpa",
568 .args_type = "addr:l",
569 .params = "addr",
570 .help = "print the host physical address corresponding to a guest physical address",
571 .cmd = hmp_gpa2hpa,
572 },
573 #endif
574
575 STEXI
576 @item gpa2hpa @var{addr}
577 @findex gpa2hpa
578 Print the host physical address at which the guest's physical address @var{addr}
579 is mapped.
580 ETEXI
581
582 {
583 .name = "p|print",
584 .args_type = "fmt:/,val:l",
585 .params = "/fmt expr",
586 .help = "print expression value (use $reg for CPU register access)",
587 .cmd = do_print,
588 },
589
590 STEXI
591 @item p or print/@var{fmt} @var{expr}
592 @findex print
593 Print expression value. Only the @var{format} part of @var{fmt} is
594 used.
595 ETEXI
596
597 {
598 .name = "i",
599 .args_type = "fmt:/,addr:i,index:i.",
600 .params = "/fmt addr",
601 .help = "I/O port read",
602 .cmd = hmp_ioport_read,
603 },
604
605 STEXI
606 @item i/@var{fmt} @var{addr} [.@var{index}]
607 @findex i
608 Read I/O port.
609 ETEXI
610
611 {
612 .name = "o",
613 .args_type = "fmt:/,addr:i,val:i",
614 .params = "/fmt addr value",
615 .help = "I/O port write",
616 .cmd = hmp_ioport_write,
617 },
618
619 STEXI
620 @item o/@var{fmt} @var{addr} @var{val}
621 @findex o
622 Write to I/O port.
623 ETEXI
624
625 {
626 .name = "sendkey",
627 .args_type = "keys:s,hold-time:i?",
628 .params = "keys [hold_ms]",
629 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
630 .cmd = hmp_sendkey,
631 .command_completion = sendkey_completion,
632 },
633
634 STEXI
635 @item sendkey @var{keys}
636 @findex sendkey
637 Send @var{keys} to the guest. @var{keys} could be the name of the
638 key or the raw value in hexadecimal format. Use @code{-} to press
639 several keys simultaneously. Example:
640 @example
641 sendkey ctrl-alt-f1
642 @end example
643
644 This command is useful to send keys that your graphical user interface
645 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
646 ETEXI
647 {
648 .name = "sync-profile",
649 .args_type = "op:s?",
650 .params = "[on|off|reset]",
651 .help = "enable, disable or reset synchronization profiling. "
652 "With no arguments, prints whether profiling is on or off.",
653 .cmd = hmp_sync_profile,
654 },
655
656 STEXI
657 @item sync-profile [on|off|reset]
658 @findex sync-profile
659 Enable, disable or reset synchronization profiling. With no arguments, prints
660 whether profiling is on or off.
661 ETEXI
662
663 {
664 .name = "system_reset",
665 .args_type = "",
666 .params = "",
667 .help = "reset the system",
668 .cmd = hmp_system_reset,
669 },
670
671 STEXI
672 @item system_reset
673 @findex system_reset
674 Reset the system.
675 ETEXI
676
677 {
678 .name = "system_powerdown",
679 .args_type = "",
680 .params = "",
681 .help = "send system power down event",
682 .cmd = hmp_system_powerdown,
683 },
684
685 STEXI
686 @item system_powerdown
687 @findex system_powerdown
688 Power down the system (if supported).
689 ETEXI
690
691 {
692 .name = "sum",
693 .args_type = "start:i,size:i",
694 .params = "addr size",
695 .help = "compute the checksum of a memory region",
696 .cmd = hmp_sum,
697 },
698
699 STEXI
700 @item sum @var{addr} @var{size}
701 @findex sum
702 Compute the checksum of a memory region.
703 ETEXI
704
705 {
706 .name = "device_add",
707 .args_type = "device:O",
708 .params = "driver[,prop=value][,...]",
709 .help = "add device, like -device on the command line",
710 .cmd = hmp_device_add,
711 .command_completion = device_add_completion,
712 },
713
714 STEXI
715 @item device_add @var{config}
716 @findex device_add
717 Add device.
718 ETEXI
719
720 {
721 .name = "device_del",
722 .args_type = "id:s",
723 .params = "device",
724 .help = "remove device",
725 .cmd = hmp_device_del,
726 .command_completion = device_del_completion,
727 },
728
729 STEXI
730 @item device_del @var{id}
731 @findex device_del
732 Remove device @var{id}. @var{id} may be a short ID
733 or a QOM object path.
734 ETEXI
735
736 {
737 .name = "cpu",
738 .args_type = "index:i",
739 .params = "index",
740 .help = "set the default CPU",
741 .cmd = hmp_cpu,
742 },
743
744 STEXI
745 @item cpu @var{index}
746 @findex cpu
747 Set the default CPU.
748 ETEXI
749
750 {
751 .name = "mouse_move",
752 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
753 .params = "dx dy [dz]",
754 .help = "send mouse move events",
755 .cmd = hmp_mouse_move,
756 },
757
758 STEXI
759 @item mouse_move @var{dx} @var{dy} [@var{dz}]
760 @findex mouse_move
761 Move the active mouse to the specified coordinates @var{dx} @var{dy}
762 with optional scroll axis @var{dz}.
763 ETEXI
764
765 {
766 .name = "mouse_button",
767 .args_type = "button_state:i",
768 .params = "state",
769 .help = "change mouse button state (1=L, 2=M, 4=R)",
770 .cmd = hmp_mouse_button,
771 },
772
773 STEXI
774 @item mouse_button @var{val}
775 @findex mouse_button
776 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
777 ETEXI
778
779 {
780 .name = "mouse_set",
781 .args_type = "index:i",
782 .params = "index",
783 .help = "set which mouse device receives events",
784 .cmd = hmp_mouse_set,
785 },
786
787 STEXI
788 @item mouse_set @var{index}
789 @findex mouse_set
790 Set which mouse device receives events at given @var{index}, index
791 can be obtained with
792 @example
793 info mice
794 @end example
795 ETEXI
796
797 {
798 .name = "wavcapture",
799 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?",
800 .params = "path [frequency [bits [channels]]]",
801 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
802 .cmd = hmp_wavcapture,
803 },
804 STEXI
805 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
806 @findex wavcapture
807 Capture audio into @var{filename}. Using sample rate @var{frequency}
808 bits per sample @var{bits} and number of channels @var{channels}.
809
810 Defaults:
811 @itemize @minus
812 @item Sample rate = 44100 Hz - CD quality
813 @item Bits = 16
814 @item Number of channels = 2 - Stereo
815 @end itemize
816 ETEXI
817
818 {
819 .name = "stopcapture",
820 .args_type = "n:i",
821 .params = "capture index",
822 .help = "stop capture",
823 .cmd = hmp_stopcapture,
824 },
825 STEXI
826 @item stopcapture @var{index}
827 @findex stopcapture
828 Stop capture with a given @var{index}, index can be obtained with
829 @example
830 info capture
831 @end example
832 ETEXI
833
834 {
835 .name = "memsave",
836 .args_type = "val:l,size:i,filename:s",
837 .params = "addr size file",
838 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
839 .cmd = hmp_memsave,
840 },
841
842 STEXI
843 @item memsave @var{addr} @var{size} @var{file}
844 @findex memsave
845 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
846 ETEXI
847
848 {
849 .name = "pmemsave",
850 .args_type = "val:l,size:i,filename:s",
851 .params = "addr size file",
852 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
853 .cmd = hmp_pmemsave,
854 },
855
856 STEXI
857 @item pmemsave @var{addr} @var{size} @var{file}
858 @findex pmemsave
859 save to disk physical memory dump starting at @var{addr} of size @var{size}.
860 ETEXI
861
862 {
863 .name = "boot_set",
864 .args_type = "bootdevice:s",
865 .params = "bootdevice",
866 .help = "define new values for the boot device list",
867 .cmd = hmp_boot_set,
868 },
869
870 STEXI
871 @item boot_set @var{bootdevicelist}
872 @findex boot_set
873 Define new values for the boot device list. Those values will override
874 the values specified on the command line through the @code{-boot} option.
875
876 The values that can be specified here depend on the machine type, but are
877 the same that can be specified in the @code{-boot} command line option.
878 ETEXI
879
880 {
881 .name = "nmi",
882 .args_type = "",
883 .params = "",
884 .help = "inject an NMI",
885 .cmd = hmp_nmi,
886 },
887 STEXI
888 @item nmi @var{cpu}
889 @findex nmi
890 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
891
892 ETEXI
893
894 {
895 .name = "ringbuf_write",
896 .args_type = "device:s,data:s",
897 .params = "device data",
898 .help = "Write to a ring buffer character device",
899 .cmd = hmp_ringbuf_write,
900 .command_completion = ringbuf_write_completion,
901 },
902
903 STEXI
904 @item ringbuf_write @var{device} @var{data}
905 @findex ringbuf_write
906 Write @var{data} to ring buffer character device @var{device}.
907 @var{data} must be a UTF-8 string.
908
909 ETEXI
910
911 {
912 .name = "ringbuf_read",
913 .args_type = "device:s,size:i",
914 .params = "device size",
915 .help = "Read from a ring buffer character device",
916 .cmd = hmp_ringbuf_read,
917 .command_completion = ringbuf_write_completion,
918 },
919
920 STEXI
921 @item ringbuf_read @var{device}
922 @findex ringbuf_read
923 Read and print up to @var{size} bytes from ring buffer character
924 device @var{device}.
925 Certain non-printable characters are printed \uXXXX, where XXXX is the
926 character code in hexadecimal. Character \ is printed \\.
927 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
928 NUL characters, after the ring buffer lost data, and when reading
929 stops because the size limit is reached.
930
931 ETEXI
932
933 {
934 .name = "migrate",
935 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
936 .params = "[-d] [-b] [-i] [-r] uri",
937 .help = "migrate to URI (using -d to not wait for completion)"
938 "\n\t\t\t -b for migration without shared storage with"
939 " full copy of disk\n\t\t\t -i for migration without "
940 "shared storage with incremental copy of disk "
941 "(base image shared between src and destination)"
942 "\n\t\t\t -r to resume a paused migration",
943 .cmd = hmp_migrate,
944 },
945
946
947 STEXI
948 @item migrate [-d] [-b] [-i] @var{uri}
949 @findex migrate
950 Migrate to @var{uri} (using -d to not wait for completion).
951 -b for migration with full copy of disk
952 -i for migration with incremental copy of disk (base image is shared)
953 ETEXI
954
955 {
956 .name = "migrate_cancel",
957 .args_type = "",
958 .params = "",
959 .help = "cancel the current VM migration",
960 .cmd = hmp_migrate_cancel,
961 },
962
963 STEXI
964 @item migrate_cancel
965 @findex migrate_cancel
966 Cancel the current VM migration.
967 ETEXI
968
969 {
970 .name = "migrate_continue",
971 .args_type = "state:s",
972 .params = "state",
973 .help = "Continue migration from the given paused state",
974 .cmd = hmp_migrate_continue,
975 },
976 STEXI
977 @item migrate_continue @var{state}
978 @findex migrate_continue
979 Continue migration from the paused state @var{state}
980 ETEXI
981
982 {
983 .name = "migrate_incoming",
984 .args_type = "uri:s",
985 .params = "uri",
986 .help = "Continue an incoming migration from an -incoming defer",
987 .cmd = hmp_migrate_incoming,
988 },
989
990 STEXI
991 @item migrate_incoming @var{uri}
992 @findex migrate_incoming
993 Continue an incoming migration using the @var{uri} (that has the same syntax
994 as the -incoming option).
995 ETEXI
996
997 {
998 .name = "migrate_recover",
999 .args_type = "uri:s",
1000 .params = "uri",
1001 .help = "Continue a paused incoming postcopy migration",
1002 .cmd = hmp_migrate_recover,
1003 },
1004
1005 STEXI
1006 @item migrate_recover @var{uri}
1007 @findex migrate_recover
1008 Continue a paused incoming postcopy migration using the @var{uri}.
1009 ETEXI
1010
1011 {
1012 .name = "migrate_pause",
1013 .args_type = "",
1014 .params = "",
1015 .help = "Pause an ongoing migration (postcopy-only)",
1016 .cmd = hmp_migrate_pause,
1017 },
1018
1019 STEXI
1020 @item migrate_pause
1021 @findex migrate_pause
1022 Pause an ongoing migration. Currently it only supports postcopy.
1023 ETEXI
1024
1025 {
1026 .name = "migrate_set_cache_size",
1027 .args_type = "value:o",
1028 .params = "value",
1029 .help = "set cache size (in bytes) for XBZRLE migrations,"
1030 "the cache size will be rounded down to the nearest "
1031 "power of 2.\n"
1032 "The cache size affects the number of cache misses."
1033 "In case of a high cache miss ratio you need to increase"
1034 " the cache size",
1035 .cmd = hmp_migrate_set_cache_size,
1036 },
1037
1038 STEXI
1039 @item migrate_set_cache_size @var{value}
1040 @findex migrate_set_cache_size
1041 Set cache size to @var{value} (in bytes) for xbzrle migrations.
1042 ETEXI
1043
1044 {
1045 .name = "migrate_set_speed",
1046 .args_type = "value:o",
1047 .params = "value",
1048 .help = "set maximum speed (in bytes) for migrations. "
1049 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
1050 .cmd = hmp_migrate_set_speed,
1051 },
1052
1053 STEXI
1054 @item migrate_set_speed @var{value}
1055 @findex migrate_set_speed
1056 Set maximum speed to @var{value} (in bytes) for migrations.
1057 ETEXI
1058
1059 {
1060 .name = "migrate_set_downtime",
1061 .args_type = "value:T",
1062 .params = "value",
1063 .help = "set maximum tolerated downtime (in seconds) for migrations",
1064 .cmd = hmp_migrate_set_downtime,
1065 },
1066
1067 STEXI
1068 @item migrate_set_downtime @var{second}
1069 @findex migrate_set_downtime
1070 Set maximum tolerated downtime (in seconds) for migration.
1071 ETEXI
1072
1073 {
1074 .name = "migrate_set_capability",
1075 .args_type = "capability:s,state:b",
1076 .params = "capability state",
1077 .help = "Enable/Disable the usage of a capability for migration",
1078 .cmd = hmp_migrate_set_capability,
1079 .command_completion = migrate_set_capability_completion,
1080 },
1081
1082 STEXI
1083 @item migrate_set_capability @var{capability} @var{state}
1084 @findex migrate_set_capability
1085 Enable/Disable the usage of a capability @var{capability} for migration.
1086 ETEXI
1087
1088 {
1089 .name = "migrate_set_parameter",
1090 .args_type = "parameter:s,value:s",
1091 .params = "parameter value",
1092 .help = "Set the parameter for migration",
1093 .cmd = hmp_migrate_set_parameter,
1094 .command_completion = migrate_set_parameter_completion,
1095 },
1096
1097 STEXI
1098 @item migrate_set_parameter @var{parameter} @var{value}
1099 @findex migrate_set_parameter
1100 Set the parameter @var{parameter} for migration.
1101 ETEXI
1102
1103 {
1104 .name = "migrate_start_postcopy",
1105 .args_type = "",
1106 .params = "",
1107 .help = "Followup to a migration command to switch the migration"
1108 " to postcopy mode. The postcopy-ram capability must "
1109 "be set on both source and destination before the "
1110 "original migration command .",
1111 .cmd = hmp_migrate_start_postcopy,
1112 },
1113
1114 STEXI
1115 @item migrate_start_postcopy
1116 @findex migrate_start_postcopy
1117 Switch in-progress migration to postcopy mode. Ignored after the end of
1118 migration (or once already in postcopy).
1119 ETEXI
1120
1121 {
1122 .name = "x_colo_lost_heartbeat",
1123 .args_type = "",
1124 .params = "",
1125 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1126 "a failover or takeover is needed.",
1127 .cmd = hmp_x_colo_lost_heartbeat,
1128 },
1129
1130 STEXI
1131 @item x_colo_lost_heartbeat
1132 @findex x_colo_lost_heartbeat
1133 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1134 ETEXI
1135
1136 {
1137 .name = "client_migrate_info",
1138 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1139 .params = "protocol hostname port tls-port cert-subject",
1140 .help = "set migration information for remote display",
1141 .cmd = hmp_client_migrate_info,
1142 },
1143
1144 STEXI
1145 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
1146 @findex client_migrate_info
1147 Set migration information for remote display. This makes the server
1148 ask the client to automatically reconnect using the new parameters
1149 once migration finished successfully. Only implemented for SPICE.
1150 ETEXI
1151
1152 {
1153 .name = "dump-guest-memory",
1154 .args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1155 .params = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
1156 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1157 "-p: do paging to get guest's memory mapping.\n\t\t\t"
1158 "-d: return immediately (do not wait for completion).\n\t\t\t"
1159 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1160 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1161 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1162 "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1163 " for Windows x64 guests with vmcoreinfo driver only.\n\t\t\t"
1164 "begin: the starting physical address.\n\t\t\t"
1165 "length: the memory size, in bytes.",
1166 .cmd = hmp_dump_guest_memory,
1167 },
1168
1169 STEXI
1170 @item dump-guest-memory [-p] @var{filename} @var{begin} @var{length}
1171 @item dump-guest-memory [-z|-l|-s|-w] @var{filename}
1172 @findex dump-guest-memory
1173 Dump guest memory to @var{protocol}. The file can be processed with crash or
1174 gdb. Without -z|-l|-s|-w, the dump format is ELF.
1175 -p: do paging to get guest's memory mapping.
1176 -z: dump in kdump-compressed format, with zlib compression.
1177 -l: dump in kdump-compressed format, with lzo compression.
1178 -s: dump in kdump-compressed format, with snappy compression.
1179 -w: dump in Windows crashdump format (can be used instead of ELF-dump converting),
1180 for Windows x64 guests with vmcoreinfo driver only
1181 filename: dump file name.
1182 begin: the starting physical address. It's optional, and should be
1183 specified together with length.
1184 length: the memory size, in bytes. It's optional, and should be specified
1185 together with begin.
1186 ETEXI
1187
1188 #if defined(TARGET_S390X)
1189 {
1190 .name = "dump-skeys",
1191 .args_type = "filename:F",
1192 .params = "",
1193 .help = "Save guest storage keys into file 'filename'.\n",
1194 .cmd = hmp_dump_skeys,
1195 },
1196 #endif
1197
1198 STEXI
1199 @item dump-skeys @var{filename}
1200 @findex dump-skeys
1201 Save guest storage keys to a file.
1202 ETEXI
1203
1204 #if defined(TARGET_S390X)
1205 {
1206 .name = "migration_mode",
1207 .args_type = "mode:i",
1208 .params = "mode",
1209 .help = "Enables or disables migration mode\n",
1210 .cmd = hmp_migrationmode,
1211 },
1212 #endif
1213
1214 STEXI
1215 @item migration_mode @var{mode}
1216 @findex migration_mode
1217 Enables or disables migration mode.
1218 ETEXI
1219
1220 {
1221 .name = "snapshot_blkdev",
1222 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1223 .params = "[-n] device [new-image-file] [format]",
1224 .help = "initiates a live snapshot\n\t\t\t"
1225 "of device. If a new image file is specified, the\n\t\t\t"
1226 "new image file will become the new root image.\n\t\t\t"
1227 "If format is specified, the snapshot file will\n\t\t\t"
1228 "be created in that format.\n\t\t\t"
1229 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1230 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1231 "recreating it from scratch.",
1232 .cmd = hmp_snapshot_blkdev,
1233 },
1234
1235 STEXI
1236 @item snapshot_blkdev
1237 @findex snapshot_blkdev
1238 Snapshot device, using snapshot file as target if provided
1239 ETEXI
1240
1241 {
1242 .name = "snapshot_blkdev_internal",
1243 .args_type = "device:B,name:s",
1244 .params = "device name",
1245 .help = "take an internal snapshot of device.\n\t\t\t"
1246 "The format of the image used by device must\n\t\t\t"
1247 "support it, such as qcow2.\n\t\t\t",
1248 .cmd = hmp_snapshot_blkdev_internal,
1249 },
1250
1251 STEXI
1252 @item snapshot_blkdev_internal
1253 @findex snapshot_blkdev_internal
1254 Take an internal snapshot on device if it support
1255 ETEXI
1256
1257 {
1258 .name = "snapshot_delete_blkdev_internal",
1259 .args_type = "device:B,name:s,id:s?",
1260 .params = "device name [id]",
1261 .help = "delete an internal snapshot of device.\n\t\t\t"
1262 "If id is specified, qemu will try delete\n\t\t\t"
1263 "the snapshot matching both id and name.\n\t\t\t"
1264 "The format of the image used by device must\n\t\t\t"
1265 "support it, such as qcow2.\n\t\t\t",
1266 .cmd = hmp_snapshot_delete_blkdev_internal,
1267 },
1268
1269 STEXI
1270 @item snapshot_delete_blkdev_internal
1271 @findex snapshot_delete_blkdev_internal
1272 Delete an internal snapshot on device if it support
1273 ETEXI
1274
1275 {
1276 .name = "drive_mirror",
1277 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1278 .params = "[-n] [-f] device target [format]",
1279 .help = "initiates live storage\n\t\t\t"
1280 "migration for a device. The device's contents are\n\t\t\t"
1281 "copied to the new image file, including data that\n\t\t\t"
1282 "is written after the command is started.\n\t\t\t"
1283 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1284 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1285 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1286 "so that the result does not need a backing file.\n\t\t\t",
1287 .cmd = hmp_drive_mirror,
1288 },
1289 STEXI
1290 @item drive_mirror
1291 @findex drive_mirror
1292 Start mirroring a block device's writes to a new destination,
1293 using the specified target.
1294 ETEXI
1295
1296 {
1297 .name = "drive_backup",
1298 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1299 .params = "[-n] [-f] [-c] device target [format]",
1300 .help = "initiates a point-in-time\n\t\t\t"
1301 "copy for a device. The device's contents are\n\t\t\t"
1302 "copied to the new image file, excluding data that\n\t\t\t"
1303 "is written after the command is started.\n\t\t\t"
1304 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1305 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1306 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1307 "so that the result does not need a backing file.\n\t\t\t"
1308 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1309 "(if the target format supports it).\n\t\t\t",
1310 .cmd = hmp_drive_backup,
1311 },
1312 STEXI
1313 @item drive_backup
1314 @findex drive_backup
1315 Start a point-in-time copy of a block device to a specificed target.
1316 ETEXI
1317
1318 {
1319 .name = "drive_add",
1320 .args_type = "node:-n,pci_addr:s,opts:s",
1321 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
1322 "[file=file][,if=type][,bus=n]\n"
1323 "[,unit=m][,media=d][,index=i]\n"
1324 "[,snapshot=on|off][,cache=on|off]\n"
1325 "[,readonly=on|off][,copy-on-read=on|off]",
1326 .help = "add drive to PCI storage controller",
1327 .cmd = hmp_drive_add,
1328 },
1329
1330 STEXI
1331 @item drive_add
1332 @findex drive_add
1333 Add drive to PCI storage controller.
1334 ETEXI
1335
1336 {
1337 .name = "pcie_aer_inject_error",
1338 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1339 "id:s,error_status:s,"
1340 "header0:i?,header1:i?,header2:i?,header3:i?,"
1341 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1342 .params = "[-a] [-c] id "
1343 "<error_status> [<tlp header> [<tlp header prefix>]]",
1344 .help = "inject pcie aer error\n\t\t\t"
1345 " -a for advisory non fatal error\n\t\t\t"
1346 " -c for correctable error\n\t\t\t"
1347 "<id> = qdev device id\n\t\t\t"
1348 "<error_status> = error string or 32bit\n\t\t\t"
1349 "<tlb header> = 32bit x 4\n\t\t\t"
1350 "<tlb header prefix> = 32bit x 4",
1351 .cmd = hmp_pcie_aer_inject_error,
1352 },
1353
1354 STEXI
1355 @item pcie_aer_inject_error
1356 @findex pcie_aer_inject_error
1357 Inject PCIe AER error
1358 ETEXI
1359
1360 {
1361 .name = "netdev_add",
1362 .args_type = "netdev:O",
1363 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1364 .help = "add host network device",
1365 .cmd = hmp_netdev_add,
1366 .command_completion = netdev_add_completion,
1367 },
1368
1369 STEXI
1370 @item netdev_add
1371 @findex netdev_add
1372 Add host network device.
1373 ETEXI
1374
1375 {
1376 .name = "netdev_del",
1377 .args_type = "id:s",
1378 .params = "id",
1379 .help = "remove host network device",
1380 .cmd = hmp_netdev_del,
1381 .command_completion = netdev_del_completion,
1382 },
1383
1384 STEXI
1385 @item netdev_del
1386 @findex netdev_del
1387 Remove host network device.
1388 ETEXI
1389
1390 {
1391 .name = "object_add",
1392 .args_type = "object:O",
1393 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1394 .help = "create QOM object",
1395 .cmd = hmp_object_add,
1396 .command_completion = object_add_completion,
1397 },
1398
1399 STEXI
1400 @item object_add
1401 @findex object_add
1402 Create QOM object.
1403 ETEXI
1404
1405 {
1406 .name = "object_del",
1407 .args_type = "id:s",
1408 .params = "id",
1409 .help = "destroy QOM object",
1410 .cmd = hmp_object_del,
1411 .command_completion = object_del_completion,
1412 },
1413
1414 STEXI
1415 @item object_del
1416 @findex object_del
1417 Destroy QOM object.
1418 ETEXI
1419
1420 #ifdef CONFIG_SLIRP
1421 {
1422 .name = "hostfwd_add",
1423 .args_type = "arg1:s,arg2:s?,arg3:s?",
1424 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1425 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1426 .cmd = hmp_hostfwd_add,
1427 },
1428 #endif
1429 STEXI
1430 @item hostfwd_add
1431 @findex hostfwd_add
1432 Redirect TCP or UDP connections from host to guest (requires -net user).
1433 ETEXI
1434
1435 #ifdef CONFIG_SLIRP
1436 {
1437 .name = "hostfwd_remove",
1438 .args_type = "arg1:s,arg2:s?,arg3:s?",
1439 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1440 .help = "remove host-to-guest TCP or UDP redirection",
1441 .cmd = hmp_hostfwd_remove,
1442 },
1443
1444 #endif
1445 STEXI
1446 @item hostfwd_remove
1447 @findex hostfwd_remove
1448 Remove host-to-guest TCP or UDP redirection.
1449 ETEXI
1450
1451 {
1452 .name = "balloon",
1453 .args_type = "value:M",
1454 .params = "target",
1455 .help = "request VM to change its memory allocation (in MB)",
1456 .cmd = hmp_balloon,
1457 },
1458
1459 STEXI
1460 @item balloon @var{value}
1461 @findex balloon
1462 Request VM to change its memory allocation to @var{value} (in MB).
1463 ETEXI
1464
1465 {
1466 .name = "set_link",
1467 .args_type = "name:s,up:b",
1468 .params = "name on|off",
1469 .help = "change the link status of a network adapter",
1470 .cmd = hmp_set_link,
1471 .command_completion = set_link_completion,
1472 },
1473
1474 STEXI
1475 @item set_link @var{name} [on|off]
1476 @findex set_link
1477 Switch link @var{name} on (i.e. up) or off (i.e. down).
1478 ETEXI
1479
1480 {
1481 .name = "watchdog_action",
1482 .args_type = "action:s",
1483 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1484 .help = "change watchdog action",
1485 .cmd = hmp_watchdog_action,
1486 .command_completion = watchdog_action_completion,
1487 },
1488
1489 STEXI
1490 @item watchdog_action
1491 @findex watchdog_action
1492 Change watchdog action.
1493 ETEXI
1494
1495 {
1496 .name = "acl_show",
1497 .args_type = "aclname:s",
1498 .params = "aclname",
1499 .help = "list rules in the access control list",
1500 .cmd = hmp_acl_show,
1501 },
1502
1503 STEXI
1504 @item acl_show @var{aclname}
1505 @findex acl_show
1506 List all the matching rules in the access control list, and the default
1507 policy. There are currently two named access control lists,
1508 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1509 certificate distinguished name, and SASL username respectively.
1510 ETEXI
1511
1512 {
1513 .name = "acl_policy",
1514 .args_type = "aclname:s,policy:s",
1515 .params = "aclname allow|deny",
1516 .help = "set default access control list policy",
1517 .cmd = hmp_acl_policy,
1518 },
1519
1520 STEXI
1521 @item acl_policy @var{aclname} @code{allow|deny}
1522 @findex acl_policy
1523 Set the default access control list policy, used in the event that
1524 none of the explicit rules match. The default policy at startup is
1525 always @code{deny}.
1526 ETEXI
1527
1528 {
1529 .name = "acl_add",
1530 .args_type = "aclname:s,match:s,policy:s,index:i?",
1531 .params = "aclname match allow|deny [index]",
1532 .help = "add a match rule to the access control list",
1533 .cmd = hmp_acl_add,
1534 },
1535
1536 STEXI
1537 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1538 @findex acl_add
1539 Add a match rule to the access control list, allowing or denying access.
1540 The match will normally be an exact username or x509 distinguished name,
1541 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1542 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1543 normally be appended to the end of the ACL, but can be inserted
1544 earlier in the list if the optional @var{index} parameter is supplied.
1545 ETEXI
1546
1547 {
1548 .name = "acl_remove",
1549 .args_type = "aclname:s,match:s",
1550 .params = "aclname match",
1551 .help = "remove a match rule from the access control list",
1552 .cmd = hmp_acl_remove,
1553 },
1554
1555 STEXI
1556 @item acl_remove @var{aclname} @var{match}
1557 @findex acl_remove
1558 Remove the specified match rule from the access control list.
1559 ETEXI
1560
1561 {
1562 .name = "acl_reset",
1563 .args_type = "aclname:s",
1564 .params = "aclname",
1565 .help = "reset the access control list",
1566 .cmd = hmp_acl_reset,
1567 },
1568
1569 STEXI
1570 @item acl_reset @var{aclname}
1571 @findex acl_reset
1572 Remove all matches from the access control list, and set the default
1573 policy back to @code{deny}.
1574 ETEXI
1575
1576 {
1577 .name = "nbd_server_start",
1578 .args_type = "all:-a,writable:-w,uri:s",
1579 .params = "nbd_server_start [-a] [-w] host:port",
1580 .help = "serve block devices on the given host and port",
1581 .cmd = hmp_nbd_server_start,
1582 },
1583 STEXI
1584 @item nbd_server_start @var{host}:@var{port}
1585 @findex nbd_server_start
1586 Start an NBD server on the given host and/or port. If the @option{-a}
1587 option is included, all of the virtual machine's block devices that
1588 have an inserted media on them are automatically exported; in this case,
1589 the @option{-w} option makes the devices writable too.
1590 ETEXI
1591
1592 {
1593 .name = "nbd_server_add",
1594 .args_type = "writable:-w,device:B,name:s?",
1595 .params = "nbd_server_add [-w] device [name]",
1596 .help = "export a block device via NBD",
1597 .cmd = hmp_nbd_server_add,
1598 },
1599 STEXI
1600 @item nbd_server_add @var{device} [ @var{name} ]
1601 @findex nbd_server_add
1602 Export a block device through QEMU's NBD server, which must be started
1603 beforehand with @command{nbd_server_start}. The @option{-w} option makes the
1604 exported device writable too. The export name is controlled by @var{name},
1605 defaulting to @var{device}.
1606 ETEXI
1607
1608 {
1609 .name = "nbd_server_remove",
1610 .args_type = "force:-f,name:s",
1611 .params = "nbd_server_remove [-f] name",
1612 .help = "remove an export previously exposed via NBD",
1613 .cmd = hmp_nbd_server_remove,
1614 },
1615 STEXI
1616 @item nbd_server_remove [-f] @var{name}
1617 @findex nbd_server_remove
1618 Stop exporting a block device through QEMU's NBD server, which was
1619 previously started with @command{nbd_server_add}. The @option{-f}
1620 option forces the server to drop the export immediately even if
1621 clients are connected; otherwise the command fails unless there are no
1622 clients.
1623 ETEXI
1624
1625 {
1626 .name = "nbd_server_stop",
1627 .args_type = "",
1628 .params = "nbd_server_stop",
1629 .help = "stop serving block devices using the NBD protocol",
1630 .cmd = hmp_nbd_server_stop,
1631 },
1632 STEXI
1633 @item nbd_server_stop
1634 @findex nbd_server_stop
1635 Stop the QEMU embedded NBD server.
1636 ETEXI
1637
1638
1639 #if defined(TARGET_I386)
1640
1641 {
1642 .name = "mce",
1643 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1644 .params = "[-b] cpu bank status mcgstatus addr misc",
1645 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1646 .cmd = hmp_mce,
1647 },
1648
1649 #endif
1650 STEXI
1651 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1652 @findex mce (x86)
1653 Inject an MCE on the given CPU (x86 only).
1654 ETEXI
1655
1656 {
1657 .name = "getfd",
1658 .args_type = "fdname:s",
1659 .params = "getfd name",
1660 .help = "receive a file descriptor via SCM rights and assign it a name",
1661 .cmd = hmp_getfd,
1662 },
1663
1664 STEXI
1665 @item getfd @var{fdname}
1666 @findex getfd
1667 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1668 mechanism on unix sockets, it is stored using the name @var{fdname} for
1669 later use by other monitor commands.
1670 ETEXI
1671
1672 {
1673 .name = "closefd",
1674 .args_type = "fdname:s",
1675 .params = "closefd name",
1676 .help = "close a file descriptor previously passed via SCM rights",
1677 .cmd = hmp_closefd,
1678 },
1679
1680 STEXI
1681 @item closefd @var{fdname}
1682 @findex closefd
1683 Close the file descriptor previously assigned to @var{fdname} using the
1684 @code{getfd} command. This is only needed if the file descriptor was never
1685 used by another monitor command.
1686 ETEXI
1687
1688 {
1689 .name = "block_passwd",
1690 .args_type = "device:B,password:s",
1691 .params = "block_passwd device password",
1692 .help = "set the password of encrypted block devices",
1693 .cmd = hmp_block_passwd,
1694 },
1695
1696 STEXI
1697 @item block_passwd @var{device} @var{password}
1698 @findex block_passwd
1699 Set the encrypted device @var{device} password to @var{password}
1700
1701 This command is now obsolete and will always return an error since 2.10
1702 ETEXI
1703
1704 {
1705 .name = "block_set_io_throttle",
1706 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1707 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1708 .help = "change I/O throttle limits for a block drive",
1709 .cmd = hmp_block_set_io_throttle,
1710 },
1711
1712 STEXI
1713 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1714 @findex block_set_io_throttle
1715 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}.
1716 @var{device} can be a block device name, a qdev ID or a QOM path.
1717 ETEXI
1718
1719 {
1720 .name = "set_password",
1721 .args_type = "protocol:s,password:s,connected:s?",
1722 .params = "protocol password action-if-connected",
1723 .help = "set spice/vnc password",
1724 .cmd = hmp_set_password,
1725 },
1726
1727 STEXI
1728 @item set_password [ vnc | spice ] password [ action-if-connected ]
1729 @findex set_password
1730 Change spice/vnc password. Use zero to make the password stay valid
1731 forever. @var{action-if-connected} specifies what should happen in
1732 case a connection is established: @var{fail} makes the password change
1733 fail. @var{disconnect} changes the password and disconnects the
1734 client. @var{keep} changes the password and keeps the connection up.
1735 @var{keep} is the default.
1736 ETEXI
1737
1738 {
1739 .name = "expire_password",
1740 .args_type = "protocol:s,time:s",
1741 .params = "protocol time",
1742 .help = "set spice/vnc password expire-time",
1743 .cmd = hmp_expire_password,
1744 },
1745
1746 STEXI
1747 @item expire_password [ vnc | spice ] expire-time
1748 @findex expire_password
1749 Specify when a password for spice/vnc becomes
1750 invalid. @var{expire-time} accepts:
1751
1752 @table @var
1753 @item now
1754 Invalidate password instantly.
1755
1756 @item never
1757 Password stays valid forever.
1758
1759 @item +nsec
1760 Password stays valid for @var{nsec} seconds starting now.
1761
1762 @item nsec
1763 Password is invalidated at the given time. @var{nsec} are the seconds
1764 passed since 1970, i.e. unix epoch.
1765
1766 @end table
1767 ETEXI
1768
1769 {
1770 .name = "chardev-add",
1771 .args_type = "args:s",
1772 .params = "args",
1773 .help = "add chardev",
1774 .cmd = hmp_chardev_add,
1775 .command_completion = chardev_add_completion,
1776 },
1777
1778 STEXI
1779 @item chardev-add args
1780 @findex chardev-add
1781 chardev-add accepts the same parameters as the -chardev command line switch.
1782
1783 ETEXI
1784
1785 {
1786 .name = "chardev-change",
1787 .args_type = "id:s,args:s",
1788 .params = "id args",
1789 .help = "change chardev",
1790 .cmd = hmp_chardev_change,
1791 },
1792
1793 STEXI
1794 @item chardev-change args
1795 @findex chardev-change
1796 chardev-change accepts existing chardev @var{id} and then the same arguments
1797 as the -chardev command line switch (except for "id").
1798
1799 ETEXI
1800
1801 {
1802 .name = "chardev-remove",
1803 .args_type = "id:s",
1804 .params = "id",
1805 .help = "remove chardev",
1806 .cmd = hmp_chardev_remove,
1807 .command_completion = chardev_remove_completion,
1808 },
1809
1810 STEXI
1811 @item chardev-remove id
1812 @findex chardev-remove
1813 Removes the chardev @var{id}.
1814
1815 ETEXI
1816
1817 {
1818 .name = "chardev-send-break",
1819 .args_type = "id:s",
1820 .params = "id",
1821 .help = "send a break on chardev",
1822 .cmd = hmp_chardev_send_break,
1823 .command_completion = chardev_remove_completion,
1824 },
1825
1826 STEXI
1827 @item chardev-send-break id
1828 @findex chardev-send-break
1829 Send a break on the chardev @var{id}.
1830
1831 ETEXI
1832
1833 {
1834 .name = "qemu-io",
1835 .args_type = "device:B,command:s",
1836 .params = "[device] \"[command]\"",
1837 .help = "run a qemu-io command on a block device",
1838 .cmd = hmp_qemu_io,
1839 },
1840
1841 STEXI
1842 @item qemu-io @var{device} @var{command}
1843 @findex qemu-io
1844 Executes a qemu-io command on the given block device.
1845
1846 ETEXI
1847
1848 {
1849 .name = "cpu-add",
1850 .args_type = "id:i",
1851 .params = "id",
1852 .help = "add cpu (deprecated, use device_add instead)",
1853 .cmd = hmp_cpu_add,
1854 },
1855
1856 STEXI
1857 @item cpu-add @var{id}
1858 @findex cpu-add
1859 Add CPU with id @var{id}. This command is deprecated, please
1860 +use @code{device_add} instead. For details, refer to
1861 'docs/cpu-hotplug.rst'.
1862 ETEXI
1863
1864 {
1865 .name = "qom-list",
1866 .args_type = "path:s?",
1867 .params = "path",
1868 .help = "list QOM properties",
1869 .cmd = hmp_qom_list,
1870 .flags = "p",
1871 },
1872
1873 STEXI
1874 @item qom-list [@var{path}]
1875 Print QOM properties of object at location @var{path}
1876 ETEXI
1877
1878 {
1879 .name = "qom-set",
1880 .args_type = "path:s,property:s,value:s",
1881 .params = "path property value",
1882 .help = "set QOM property",
1883 .cmd = hmp_qom_set,
1884 .flags = "p",
1885 },
1886
1887 STEXI
1888 @item qom-set @var{path} @var{property} @var{value}
1889 Set QOM property @var{property} of object at location @var{path} to value @var{value}
1890 ETEXI
1891
1892 {
1893 .name = "info",
1894 .args_type = "item:s?",
1895 .params = "[subcommand]",
1896 .help = "show various information about the system state",
1897 .cmd = hmp_info_help,
1898 .sub_table = info_cmds,
1899 .flags = "p",
1900 },
1901
1902 STEXI
1903 @end table
1904 ETEXI