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1HXCOMM Use DEFHEADING() to define headings in both help text and texi
2HXCOMM Text between STEXI and ETEXI are copied to texi version and
3HXCOMM discarded from C version
4HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
5HXCOMM monitor commands
6HXCOMM HXCOMM can be used for comments, discarded from both texi and C
7
8STEXI
9@table @option
10ETEXI
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
21STEXI
22@item help or ? [@var{cmd}]
23@findex help
24Show the help for all commands or just for command @var{cmd}.
25ETEXI
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
35STEXI
36@item commit
37@findex commit
38Commit changes to the disk images (if -snapshot is used) or backing files.
39If the backing file is smaller than the snapshot, then the backing file will be
40resized to be the same size as the snapshot. If the snapshot is smaller than
41the backing file, the backing file will not be truncated. If you want the
42backing file to match the size of the smaller snapshot, you can safely truncate
43it yourself once the commit operation successfully completes.
44ETEXI
45
46 {
47 .name = "q|quit",
48 .args_type = "",
49 .params = "",
50 .help = "quit the emulator",
51 .cmd = hmp_quit,
52 },
53
54STEXI
55@item q or quit
56@findex quit
57Quit the emulator.
58ETEXI
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
69STEXI
70@item exit_preconfig
71@findex exit_preconfig
72This command makes QEMU exit the preconfig state and proceed with
73VM initialization using configuration data provided on the command line
74and via the QMP monitor during the preconfig state. The command is only
75available during the preconfig state (i.e. when the --preconfig command
76line option was in use).
77ETEXI
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
87STEXI
88@item block_resize
89@findex block_resize
90Resize a block image while a guest is running. Usually requires guest
91action to see the updated size. Resize to a lower size is supported,
92but should be used with extreme caution. Note that this command only
93resizes image files, it can not resize block devices like LVM volumes.
94ETEXI
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
104STEXI
105@item block_stream
106@findex block_stream
107Copy data from a backing file into a block device.
108ETEXI
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
118STEXI
119@item block_job_set_speed
120@findex block_job_set_speed
121Set maximum speed for a background block operation.
122ETEXI
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
134STEXI
135@item block_job_cancel
136@findex block_job_cancel
137Stop an active background block operation (streaming, mirroring).
138ETEXI
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
148STEXI
149@item block_job_complete
150@findex block_job_complete
151Manually trigger completion of an active background block operation.
152For mirroring, this will switch the device to the destination path.
153ETEXI
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
163STEXI
164@item block_job_pause
165@findex block_job_pause
166Pause an active block streaming operation.
167ETEXI
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
177STEXI
178@item block_job_resume
179@findex block_job_resume
180Resume a paused block streaming operation.
181ETEXI
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
191STEXI
192@item eject [-f] @var{device}
193@findex eject
194Eject a removable medium (use -f to force it).
195ETEXI
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
205STEXI
206@item drive_del @var{device}
207@findex drive_del
208Remove host block device. The result is that guest generated IO is no longer
209submitted against the host device underlying the disk. Once a drive has
210been deleted, the QEMU Block layer returns -EIO which results in IO
211errors in the guest for applications that are reading/writing to the device.
212These errors are always reported to the guest, regardless of the drive's error
213actions (drive options rerror, werror).
214ETEXI
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
224STEXI
225@item change @var{device} @var{setting}
226@findex change
227Change the configuration of a device.
228
229@table @option
230@item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]]
231Change 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.
240It accepts the following values:
241
242@table @var
243@item retain
244Retains the current status; this is the default.
245
246@item read-only
247Makes the device read-only.
248
249@item read-write
250Makes the device writable.
251@end table
252
253@item change vnc @var{display},@var{options}
254Change the configuration of the VNC server. The valid syntax for @var{display}
255and @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
263Change the password associated with the VNC server. If the new password is not
264supplied, the monitor will prompt for it to be entered. VNC passwords are only
265significant up to 8 letters. eg
266
267@example
268(qemu) change vnc password
269Password: ********
270@end example
271
272@end table
273ETEXI
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
284STEXI
285@item screendump @var{filename}
286@findex screendump
287Save screen into PPM image @var{filename}.
288ETEXI
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
298STEXI
299@item logfile @var{filename}
300@findex logfile
301Output logs to @var{filename}.
302ETEXI
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
314STEXI
315@item trace-event
316@findex trace-event
317changes status of a trace event
318ETEXI
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
329STEXI
330@item trace-file on|off|flush
331@findex trace-file
332Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed.
333ETEXI
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
344STEXI
345@item log @var{item1}[,...]
346@findex log
347Activate logging of the specified items.
348ETEXI
349
350 {
351 .name = "savevm",
352 .args_type = "name:s?",
353 .params = "tag",
354 .help = "save a VM snapshot. If no tag is provided, a new snapshot is created",
355 .cmd = hmp_savevm,
356 },
357
358STEXI
359@item savevm @var{tag}
360@findex savevm
361Create a snapshot of the whole virtual machine. If @var{tag} is
362provided, it is used as human readable identifier. If there is already
363a snapshot with the same tag, it is replaced. More info at
364@ref{vm_snapshots}.
365
366Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
367only @var{tag} as parameter.
368ETEXI
369
370 {
371 .name = "loadvm",
372 .args_type = "name:s",
373 .params = "tag",
374 .help = "restore a VM snapshot from its tag",
375 .cmd = hmp_loadvm,
376 .command_completion = loadvm_completion,
377 },
378
379STEXI
380@item loadvm @var{tag}
381@findex loadvm
382Set the whole virtual machine to the snapshot identified by the tag
383@var{tag}.
384
385Since 4.0, loadvm stopped accepting snapshot id as parameter.
386ETEXI
387
388 {
389 .name = "delvm",
390 .args_type = "name:s",
391 .params = "tag",
392 .help = "delete a VM snapshot from its tag",
393 .cmd = hmp_delvm,
394 .command_completion = delvm_completion,
395 },
396
397STEXI
398@item delvm @var{tag}
399@findex delvm
400Delete the snapshot identified by @var{tag}.
401
402Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
403only @var{tag} as parameter.
404ETEXI
405
406 {
407 .name = "singlestep",
408 .args_type = "option:s?",
409 .params = "[on|off]",
410 .help = "run emulation in singlestep mode or switch to normal mode",
411 .cmd = hmp_singlestep,
412 },
413
414STEXI
415@item singlestep [off]
416@findex singlestep
417Run the emulation in single step mode.
418If called with option off, the emulation returns to normal mode.
419ETEXI
420
421 {
422 .name = "stop",
423 .args_type = "",
424 .params = "",
425 .help = "stop emulation",
426 .cmd = hmp_stop,
427 },
428
429STEXI
430@item stop
431@findex stop
432Stop emulation.
433ETEXI
434
435 {
436 .name = "c|cont",
437 .args_type = "",
438 .params = "",
439 .help = "resume emulation",
440 .cmd = hmp_cont,
441 },
442
443STEXI
444@item c or cont
445@findex cont
446Resume emulation.
447ETEXI
448
449 {
450 .name = "system_wakeup",
451 .args_type = "",
452 .params = "",
453 .help = "wakeup guest from suspend",
454 .cmd = hmp_system_wakeup,
455 },
456
457STEXI
458@item system_wakeup
459@findex system_wakeup
460Wakeup guest from suspend.
461ETEXI
462
463 {
464 .name = "gdbserver",
465 .args_type = "device:s?",
466 .params = "[device]",
467 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
468 .cmd = hmp_gdbserver,
469 },
470
471STEXI
472@item gdbserver [@var{port}]
473@findex gdbserver
474Start gdbserver session (default @var{port}=1234)
475ETEXI
476
477 {
478 .name = "x",
479 .args_type = "fmt:/,addr:l",
480 .params = "/fmt addr",
481 .help = "virtual memory dump starting at 'addr'",
482 .cmd = hmp_memory_dump,
483 },
484
485STEXI
486@item x/fmt @var{addr}
487@findex x
488Virtual memory dump starting at @var{addr}.
489ETEXI
490
491 {
492 .name = "xp",
493 .args_type = "fmt:/,addr:l",
494 .params = "/fmt addr",
495 .help = "physical memory dump starting at 'addr'",
496 .cmd = hmp_physical_memory_dump,
497 },
498
499STEXI
500@item xp /@var{fmt} @var{addr}
501@findex xp
502Physical memory dump starting at @var{addr}.
503
504@var{fmt} is a format which tells the command how to format the
505data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
506
507@table @var
508@item count
509is the number of items to be dumped.
510
511@item format
512can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
513c (char) or i (asm instruction).
514
515@item size
516can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
517@code{h} or @code{w} can be specified with the @code{i} format to
518respectively select 16 or 32 bit code instruction size.
519
520@end table
521
522Examples:
523@itemize
524@item
525Dump 10 instructions at the current instruction pointer:
526@example
527(qemu) x/10i $eip
5280x90107063: ret
5290x90107064: sti
5300x90107065: lea 0x0(%esi,1),%esi
5310x90107069: lea 0x0(%edi,1),%edi
5320x90107070: ret
5330x90107071: jmp 0x90107080
5340x90107073: nop
5350x90107074: nop
5360x90107075: nop
5370x90107076: nop
538@end example
539
540@item
541Dump 80 16 bit values at the start of the video memory.
542@smallexample
543(qemu) xp/80hx 0xb8000
5440x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
5450x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
5460x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
5470x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
5480x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
5490x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
5500x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
5510x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
5520x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
5530x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
554@end smallexample
555@end itemize
556ETEXI
557
558 {
559 .name = "gpa2hva",
560 .args_type = "addr:l",
561 .params = "addr",
562 .help = "print the host virtual address corresponding to a guest physical address",
563 .cmd = hmp_gpa2hva,
564 },
565
566STEXI
567@item gpa2hva @var{addr}
568@findex gpa2hva
569Print the host virtual address at which the guest's physical address @var{addr}
570is mapped.
571ETEXI
572
573#ifdef CONFIG_LINUX
574 {
575 .name = "gpa2hpa",
576 .args_type = "addr:l",
577 .params = "addr",
578 .help = "print the host physical address corresponding to a guest physical address",
579 .cmd = hmp_gpa2hpa,
580 },
581#endif
582
583STEXI
584@item gpa2hpa @var{addr}
585@findex gpa2hpa
586Print the host physical address at which the guest's physical address @var{addr}
587is mapped.
588ETEXI
589
590 {
591 .name = "p|print",
592 .args_type = "fmt:/,val:l",
593 .params = "/fmt expr",
594 .help = "print expression value (use $reg for CPU register access)",
595 .cmd = do_print,
596 },
597
598STEXI
599@item p or print/@var{fmt} @var{expr}
600@findex print
601Print expression value. Only the @var{format} part of @var{fmt} is
602used.
603ETEXI
604
605 {
606 .name = "i",
607 .args_type = "fmt:/,addr:i,index:i.",
608 .params = "/fmt addr",
609 .help = "I/O port read",
610 .cmd = hmp_ioport_read,
611 },
612
613STEXI
614@item i/@var{fmt} @var{addr} [.@var{index}]
615@findex i
616Read I/O port.
617ETEXI
618
619 {
620 .name = "o",
621 .args_type = "fmt:/,addr:i,val:i",
622 .params = "/fmt addr value",
623 .help = "I/O port write",
624 .cmd = hmp_ioport_write,
625 },
626
627STEXI
628@item o/@var{fmt} @var{addr} @var{val}
629@findex o
630Write to I/O port.
631ETEXI
632
633 {
634 .name = "sendkey",
635 .args_type = "keys:s,hold-time:i?",
636 .params = "keys [hold_ms]",
637 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
638 .cmd = hmp_sendkey,
639 .command_completion = sendkey_completion,
640 },
641
642STEXI
643@item sendkey @var{keys}
644@findex sendkey
645Send @var{keys} to the guest. @var{keys} could be the name of the
646key or the raw value in hexadecimal format. Use @code{-} to press
647several keys simultaneously. Example:
648@example
649sendkey ctrl-alt-f1
650@end example
651
652This command is useful to send keys that your graphical user interface
653intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
654ETEXI
655 {
656 .name = "sync-profile",
657 .args_type = "op:s?",
658 .params = "[on|off|reset]",
659 .help = "enable, disable or reset synchronization profiling. "
660 "With no arguments, prints whether profiling is on or off.",
661 .cmd = hmp_sync_profile,
662 },
663
664STEXI
665@item sync-profile [on|off|reset]
666@findex sync-profile
667Enable, disable or reset synchronization profiling. With no arguments, prints
668whether profiling is on or off.
669ETEXI
670
671 {
672 .name = "system_reset",
673 .args_type = "",
674 .params = "",
675 .help = "reset the system",
676 .cmd = hmp_system_reset,
677 },
678
679STEXI
680@item system_reset
681@findex system_reset
682Reset the system.
683ETEXI
684
685 {
686 .name = "system_powerdown",
687 .args_type = "",
688 .params = "",
689 .help = "send system power down event",
690 .cmd = hmp_system_powerdown,
691 },
692
693STEXI
694@item system_powerdown
695@findex system_powerdown
696Power down the system (if supported).
697ETEXI
698
699 {
700 .name = "sum",
701 .args_type = "start:i,size:i",
702 .params = "addr size",
703 .help = "compute the checksum of a memory region",
704 .cmd = hmp_sum,
705 },
706
707STEXI
708@item sum @var{addr} @var{size}
709@findex sum
710Compute the checksum of a memory region.
711ETEXI
712
713 {
714 .name = "device_add",
715 .args_type = "device:O",
716 .params = "driver[,prop=value][,...]",
717 .help = "add device, like -device on the command line",
718 .cmd = hmp_device_add,
719 .command_completion = device_add_completion,
720 },
721
722STEXI
723@item device_add @var{config}
724@findex device_add
725Add device.
726ETEXI
727
728 {
729 .name = "device_del",
730 .args_type = "id:s",
731 .params = "device",
732 .help = "remove device",
733 .cmd = hmp_device_del,
734 .command_completion = device_del_completion,
735 },
736
737STEXI
738@item device_del @var{id}
739@findex device_del
740Remove device @var{id}. @var{id} may be a short ID
741or a QOM object path.
742ETEXI
743
744 {
745 .name = "cpu",
746 .args_type = "index:i",
747 .params = "index",
748 .help = "set the default CPU",
749 .cmd = hmp_cpu,
750 },
751
752STEXI
753@item cpu @var{index}
754@findex cpu
755Set the default CPU.
756ETEXI
757
758 {
759 .name = "mouse_move",
760 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
761 .params = "dx dy [dz]",
762 .help = "send mouse move events",
763 .cmd = hmp_mouse_move,
764 },
765
766STEXI
767@item mouse_move @var{dx} @var{dy} [@var{dz}]
768@findex mouse_move
769Move the active mouse to the specified coordinates @var{dx} @var{dy}
770with optional scroll axis @var{dz}.
771ETEXI
772
773 {
774 .name = "mouse_button",
775 .args_type = "button_state:i",
776 .params = "state",
777 .help = "change mouse button state (1=L, 2=M, 4=R)",
778 .cmd = hmp_mouse_button,
779 },
780
781STEXI
782@item mouse_button @var{val}
783@findex mouse_button
784Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
785ETEXI
786
787 {
788 .name = "mouse_set",
789 .args_type = "index:i",
790 .params = "index",
791 .help = "set which mouse device receives events",
792 .cmd = hmp_mouse_set,
793 },
794
795STEXI
796@item mouse_set @var{index}
797@findex mouse_set
798Set which mouse device receives events at given @var{index}, index
799can be obtained with
800@example
801info mice
802@end example
803ETEXI
804
805 {
806 .name = "wavcapture",
807 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?",
808 .params = "path [frequency [bits [channels]]]",
809 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
810 .cmd = hmp_wavcapture,
811 },
812STEXI
813@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
814@findex wavcapture
815Capture audio into @var{filename}. Using sample rate @var{frequency}
816bits per sample @var{bits} and number of channels @var{channels}.
817
818Defaults:
819@itemize @minus
820@item Sample rate = 44100 Hz - CD quality
821@item Bits = 16
822@item Number of channels = 2 - Stereo
823@end itemize
824ETEXI
825
826 {
827 .name = "stopcapture",
828 .args_type = "n:i",
829 .params = "capture index",
830 .help = "stop capture",
831 .cmd = hmp_stopcapture,
832 },
833STEXI
834@item stopcapture @var{index}
835@findex stopcapture
836Stop capture with a given @var{index}, index can be obtained with
837@example
838info capture
839@end example
840ETEXI
841
842 {
843 .name = "memsave",
844 .args_type = "val:l,size:i,filename:s",
845 .params = "addr size file",
846 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
847 .cmd = hmp_memsave,
848 },
849
850STEXI
851@item memsave @var{addr} @var{size} @var{file}
852@findex memsave
853save to disk virtual memory dump starting at @var{addr} of size @var{size}.
854ETEXI
855
856 {
857 .name = "pmemsave",
858 .args_type = "val:l,size:i,filename:s",
859 .params = "addr size file",
860 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
861 .cmd = hmp_pmemsave,
862 },
863
864STEXI
865@item pmemsave @var{addr} @var{size} @var{file}
866@findex pmemsave
867save to disk physical memory dump starting at @var{addr} of size @var{size}.
868ETEXI
869
870 {
871 .name = "boot_set",
872 .args_type = "bootdevice:s",
873 .params = "bootdevice",
874 .help = "define new values for the boot device list",
875 .cmd = hmp_boot_set,
876 },
877
878STEXI
879@item boot_set @var{bootdevicelist}
880@findex boot_set
881Define new values for the boot device list. Those values will override
882the values specified on the command line through the @code{-boot} option.
883
884The values that can be specified here depend on the machine type, but are
885the same that can be specified in the @code{-boot} command line option.
886ETEXI
887
888 {
889 .name = "nmi",
890 .args_type = "",
891 .params = "",
892 .help = "inject an NMI",
893 .cmd = hmp_nmi,
894 },
895STEXI
896@item nmi @var{cpu}
897@findex nmi
898Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
899
900ETEXI
901
902 {
903 .name = "ringbuf_write",
904 .args_type = "device:s,data:s",
905 .params = "device data",
906 .help = "Write to a ring buffer character device",
907 .cmd = hmp_ringbuf_write,
908 .command_completion = ringbuf_write_completion,
909 },
910
911STEXI
912@item ringbuf_write @var{device} @var{data}
913@findex ringbuf_write
914Write @var{data} to ring buffer character device @var{device}.
915@var{data} must be a UTF-8 string.
916
917ETEXI
918
919 {
920 .name = "ringbuf_read",
921 .args_type = "device:s,size:i",
922 .params = "device size",
923 .help = "Read from a ring buffer character device",
924 .cmd = hmp_ringbuf_read,
925 .command_completion = ringbuf_write_completion,
926 },
927
928STEXI
929@item ringbuf_read @var{device}
930@findex ringbuf_read
931Read and print up to @var{size} bytes from ring buffer character
932device @var{device}.
933Certain non-printable characters are printed \uXXXX, where XXXX is the
934character code in hexadecimal. Character \ is printed \\.
935Bug: can screw up when the buffer contains invalid UTF-8 sequences,
936NUL characters, after the ring buffer lost data, and when reading
937stops because the size limit is reached.
938
939ETEXI
940
941 {
942 .name = "migrate",
943 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
944 .params = "[-d] [-b] [-i] [-r] uri",
945 .help = "migrate to URI (using -d to not wait for completion)"
946 "\n\t\t\t -b for migration without shared storage with"
947 " full copy of disk\n\t\t\t -i for migration without "
948 "shared storage with incremental copy of disk "
949 "(base image shared between src and destination)"
950 "\n\t\t\t -r to resume a paused migration",
951 .cmd = hmp_migrate,
952 },
953
954
955STEXI
956@item migrate [-d] [-b] [-i] @var{uri}
957@findex migrate
958Migrate to @var{uri} (using -d to not wait for completion).
959 -b for migration with full copy of disk
960 -i for migration with incremental copy of disk (base image is shared)
961ETEXI
962
963 {
964 .name = "migrate_cancel",
965 .args_type = "",
966 .params = "",
967 .help = "cancel the current VM migration",
968 .cmd = hmp_migrate_cancel,
969 },
970
971STEXI
972@item migrate_cancel
973@findex migrate_cancel
974Cancel the current VM migration.
975ETEXI
976
977 {
978 .name = "migrate_continue",
979 .args_type = "state:s",
980 .params = "state",
981 .help = "Continue migration from the given paused state",
982 .cmd = hmp_migrate_continue,
983 },
984STEXI
985@item migrate_continue @var{state}
986@findex migrate_continue
987Continue migration from the paused state @var{state}
988ETEXI
989
990 {
991 .name = "migrate_incoming",
992 .args_type = "uri:s",
993 .params = "uri",
994 .help = "Continue an incoming migration from an -incoming defer",
995 .cmd = hmp_migrate_incoming,
996 },
997
998STEXI
999@item migrate_incoming @var{uri}
1000@findex migrate_incoming
1001Continue an incoming migration using the @var{uri} (that has the same syntax
1002as the -incoming option).
1003ETEXI
1004
1005 {
1006 .name = "migrate_recover",
1007 .args_type = "uri:s",
1008 .params = "uri",
1009 .help = "Continue a paused incoming postcopy migration",
1010 .cmd = hmp_migrate_recover,
1011 },
1012
1013STEXI
1014@item migrate_recover @var{uri}
1015@findex migrate_recover
1016Continue a paused incoming postcopy migration using the @var{uri}.
1017ETEXI
1018
1019 {
1020 .name = "migrate_pause",
1021 .args_type = "",
1022 .params = "",
1023 .help = "Pause an ongoing migration (postcopy-only)",
1024 .cmd = hmp_migrate_pause,
1025 },
1026
1027STEXI
1028@item migrate_pause
1029@findex migrate_pause
1030Pause an ongoing migration. Currently it only supports postcopy.
1031ETEXI
1032
1033 {
1034 .name = "migrate_set_cache_size",
1035 .args_type = "value:o",
1036 .params = "value",
1037 .help = "set cache size (in bytes) for XBZRLE migrations,"
1038 "the cache size will be rounded down to the nearest "
1039 "power of 2.\n"
1040 "The cache size affects the number of cache misses."
1041 "In case of a high cache miss ratio you need to increase"
1042 " the cache size",
1043 .cmd = hmp_migrate_set_cache_size,
1044 },
1045
1046STEXI
1047@item migrate_set_cache_size @var{value}
1048@findex migrate_set_cache_size
1049Set cache size to @var{value} (in bytes) for xbzrle migrations.
1050ETEXI
1051
1052 {
1053 .name = "migrate_set_speed",
1054 .args_type = "value:o",
1055 .params = "value",
1056 .help = "set maximum speed (in bytes) for migrations. "
1057 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
1058 .cmd = hmp_migrate_set_speed,
1059 },
1060
1061STEXI
1062@item migrate_set_speed @var{value}
1063@findex migrate_set_speed
1064Set maximum speed to @var{value} (in bytes) for migrations.
1065ETEXI
1066
1067 {
1068 .name = "migrate_set_downtime",
1069 .args_type = "value:T",
1070 .params = "value",
1071 .help = "set maximum tolerated downtime (in seconds) for migrations",
1072 .cmd = hmp_migrate_set_downtime,
1073 },
1074
1075STEXI
1076@item migrate_set_downtime @var{second}
1077@findex migrate_set_downtime
1078Set maximum tolerated downtime (in seconds) for migration.
1079ETEXI
1080
1081 {
1082 .name = "migrate_set_capability",
1083 .args_type = "capability:s,state:b",
1084 .params = "capability state",
1085 .help = "Enable/Disable the usage of a capability for migration",
1086 .cmd = hmp_migrate_set_capability,
1087 .command_completion = migrate_set_capability_completion,
1088 },
1089
1090STEXI
1091@item migrate_set_capability @var{capability} @var{state}
1092@findex migrate_set_capability
1093Enable/Disable the usage of a capability @var{capability} for migration.
1094ETEXI
1095
1096 {
1097 .name = "migrate_set_parameter",
1098 .args_type = "parameter:s,value:s",
1099 .params = "parameter value",
1100 .help = "Set the parameter for migration",
1101 .cmd = hmp_migrate_set_parameter,
1102 .command_completion = migrate_set_parameter_completion,
1103 },
1104
1105STEXI
1106@item migrate_set_parameter @var{parameter} @var{value}
1107@findex migrate_set_parameter
1108Set the parameter @var{parameter} for migration.
1109ETEXI
1110
1111 {
1112 .name = "migrate_start_postcopy",
1113 .args_type = "",
1114 .params = "",
1115 .help = "Followup to a migration command to switch the migration"
1116 " to postcopy mode. The postcopy-ram capability must "
1117 "be set on both source and destination before the "
1118 "original migration command .",
1119 .cmd = hmp_migrate_start_postcopy,
1120 },
1121
1122STEXI
1123@item migrate_start_postcopy
1124@findex migrate_start_postcopy
1125Switch in-progress migration to postcopy mode. Ignored after the end of
1126migration (or once already in postcopy).
1127ETEXI
1128
1129 {
1130 .name = "x_colo_lost_heartbeat",
1131 .args_type = "",
1132 .params = "",
1133 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1134 "a failover or takeover is needed.",
1135 .cmd = hmp_x_colo_lost_heartbeat,
1136 },
1137
1138STEXI
1139@item x_colo_lost_heartbeat
1140@findex x_colo_lost_heartbeat
1141Tell COLO that heartbeat is lost, a failover or takeover is needed.
1142ETEXI
1143
1144 {
1145 .name = "client_migrate_info",
1146 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1147 .params = "protocol hostname port tls-port cert-subject",
1148 .help = "set migration information for remote display",
1149 .cmd = hmp_client_migrate_info,
1150 },
1151
1152STEXI
1153@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
1154@findex client_migrate_info
1155Set migration information for remote display. This makes the server
1156ask the client to automatically reconnect using the new parameters
1157once migration finished successfully. Only implemented for SPICE.
1158ETEXI
1159
1160 {
1161 .name = "dump-guest-memory",
1162 .args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1163 .params = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
1164 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1165 "-p: do paging to get guest's memory mapping.\n\t\t\t"
1166 "-d: return immediately (do not wait for completion).\n\t\t\t"
1167 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1168 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1169 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1170 "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1171 " for Windows x64 guests with vmcoreinfo driver only.\n\t\t\t"
1172 "begin: the starting physical address.\n\t\t\t"
1173 "length: the memory size, in bytes.",
1174 .cmd = hmp_dump_guest_memory,
1175 },
1176
1177STEXI
1178@item dump-guest-memory [-p] @var{filename} @var{begin} @var{length}
1179@item dump-guest-memory [-z|-l|-s|-w] @var{filename}
1180@findex dump-guest-memory
1181Dump guest memory to @var{protocol}. The file can be processed with crash or
1182gdb. Without -z|-l|-s|-w, the dump format is ELF.
1183 -p: do paging to get guest's memory mapping.
1184 -z: dump in kdump-compressed format, with zlib compression.
1185 -l: dump in kdump-compressed format, with lzo compression.
1186 -s: dump in kdump-compressed format, with snappy compression.
1187 -w: dump in Windows crashdump format (can be used instead of ELF-dump converting),
1188 for Windows x64 guests with vmcoreinfo driver only
1189 filename: dump file name.
1190 begin: the starting physical address. It's optional, and should be
1191 specified together with length.
1192 length: the memory size, in bytes. It's optional, and should be specified
1193 together with begin.
1194ETEXI
1195
1196#if defined(TARGET_S390X)
1197 {
1198 .name = "dump-skeys",
1199 .args_type = "filename:F",
1200 .params = "",
1201 .help = "Save guest storage keys into file 'filename'.\n",
1202 .cmd = hmp_dump_skeys,
1203 },
1204#endif
1205
1206STEXI
1207@item dump-skeys @var{filename}
1208@findex dump-skeys
1209Save guest storage keys to a file.
1210ETEXI
1211
1212#if defined(TARGET_S390X)
1213 {
1214 .name = "migration_mode",
1215 .args_type = "mode:i",
1216 .params = "mode",
1217 .help = "Enables or disables migration mode\n",
1218 .cmd = hmp_migrationmode,
1219 },
1220#endif
1221
1222STEXI
1223@item migration_mode @var{mode}
1224@findex migration_mode
1225Enables or disables migration mode.
1226ETEXI
1227
1228 {
1229 .name = "snapshot_blkdev",
1230 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1231 .params = "[-n] device [new-image-file] [format]",
1232 .help = "initiates a live snapshot\n\t\t\t"
1233 "of device. If a new image file is specified, the\n\t\t\t"
1234 "new image file will become the new root image.\n\t\t\t"
1235 "If format is specified, the snapshot file will\n\t\t\t"
1236 "be created in that format.\n\t\t\t"
1237 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1238 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1239 "recreating it from scratch.",
1240 .cmd = hmp_snapshot_blkdev,
1241 },
1242
1243STEXI
1244@item snapshot_blkdev
1245@findex snapshot_blkdev
1246Snapshot device, using snapshot file as target if provided
1247ETEXI
1248
1249 {
1250 .name = "snapshot_blkdev_internal",
1251 .args_type = "device:B,name:s",
1252 .params = "device name",
1253 .help = "take an internal snapshot of device.\n\t\t\t"
1254 "The format of the image used by device must\n\t\t\t"
1255 "support it, such as qcow2.\n\t\t\t",
1256 .cmd = hmp_snapshot_blkdev_internal,
1257 },
1258
1259STEXI
1260@item snapshot_blkdev_internal
1261@findex snapshot_blkdev_internal
1262Take an internal snapshot on device if it support
1263ETEXI
1264
1265 {
1266 .name = "snapshot_delete_blkdev_internal",
1267 .args_type = "device:B,name:s,id:s?",
1268 .params = "device name [id]",
1269 .help = "delete an internal snapshot of device.\n\t\t\t"
1270 "If id is specified, qemu will try delete\n\t\t\t"
1271 "the snapshot matching both id and name.\n\t\t\t"
1272 "The format of the image used by device must\n\t\t\t"
1273 "support it, such as qcow2.\n\t\t\t",
1274 .cmd = hmp_snapshot_delete_blkdev_internal,
1275 },
1276
1277STEXI
1278@item snapshot_delete_blkdev_internal
1279@findex snapshot_delete_blkdev_internal
1280Delete an internal snapshot on device if it support
1281ETEXI
1282
1283 {
1284 .name = "drive_mirror",
1285 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1286 .params = "[-n] [-f] device target [format]",
1287 .help = "initiates live storage\n\t\t\t"
1288 "migration for a device. The device's contents are\n\t\t\t"
1289 "copied to the new image file, including data that\n\t\t\t"
1290 "is written after the command is started.\n\t\t\t"
1291 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1292 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1293 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1294 "so that the result does not need a backing file.\n\t\t\t",
1295 .cmd = hmp_drive_mirror,
1296 },
1297STEXI
1298@item drive_mirror
1299@findex drive_mirror
1300Start mirroring a block device's writes to a new destination,
1301using the specified target.
1302ETEXI
1303
1304 {
1305 .name = "drive_backup",
1306 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1307 .params = "[-n] [-f] [-c] device target [format]",
1308 .help = "initiates a point-in-time\n\t\t\t"
1309 "copy for a device. The device's contents are\n\t\t\t"
1310 "copied to the new image file, excluding data that\n\t\t\t"
1311 "is written after the command is started.\n\t\t\t"
1312 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1313 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1314 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1315 "so that the result does not need a backing file.\n\t\t\t"
1316 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1317 "(if the target format supports it).\n\t\t\t",
1318 .cmd = hmp_drive_backup,
1319 },
1320STEXI
1321@item drive_backup
1322@findex drive_backup
1323Start a point-in-time copy of a block device to a specificed target.
1324ETEXI
1325
1326 {
1327 .name = "drive_add",
1328 .args_type = "node:-n,pci_addr:s,opts:s",
1329 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
1330 "[file=file][,if=type][,bus=n]\n"
1331 "[,unit=m][,media=d][,index=i]\n"
1332 "[,snapshot=on|off][,cache=on|off]\n"
1333 "[,readonly=on|off][,copy-on-read=on|off]",
1334 .help = "add drive to PCI storage controller",
1335 .cmd = hmp_drive_add,
1336 },
1337
1338STEXI
1339@item drive_add
1340@findex drive_add
1341Add drive to PCI storage controller.
1342ETEXI
1343
1344 {
1345 .name = "pcie_aer_inject_error",
1346 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1347 "id:s,error_status:s,"
1348 "header0:i?,header1:i?,header2:i?,header3:i?,"
1349 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1350 .params = "[-a] [-c] id "
1351 "<error_status> [<tlp header> [<tlp header prefix>]]",
1352 .help = "inject pcie aer error\n\t\t\t"
1353 " -a for advisory non fatal error\n\t\t\t"
1354 " -c for correctable error\n\t\t\t"
1355 "<id> = qdev device id\n\t\t\t"
1356 "<error_status> = error string or 32bit\n\t\t\t"
1357 "<tlb header> = 32bit x 4\n\t\t\t"
1358 "<tlb header prefix> = 32bit x 4",
1359 .cmd = hmp_pcie_aer_inject_error,
1360 },
1361
1362STEXI
1363@item pcie_aer_inject_error
1364@findex pcie_aer_inject_error
1365Inject PCIe AER error
1366ETEXI
1367
1368 {
1369 .name = "netdev_add",
1370 .args_type = "netdev:O",
1371 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1372 .help = "add host network device",
1373 .cmd = hmp_netdev_add,
1374 .command_completion = netdev_add_completion,
1375 },
1376
1377STEXI
1378@item netdev_add
1379@findex netdev_add
1380Add host network device.
1381ETEXI
1382
1383 {
1384 .name = "netdev_del",
1385 .args_type = "id:s",
1386 .params = "id",
1387 .help = "remove host network device",
1388 .cmd = hmp_netdev_del,
1389 .command_completion = netdev_del_completion,
1390 },
1391
1392STEXI
1393@item netdev_del
1394@findex netdev_del
1395Remove host network device.
1396ETEXI
1397
1398 {
1399 .name = "object_add",
1400 .args_type = "object:O",
1401 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1402 .help = "create QOM object",
1403 .cmd = hmp_object_add,
1404 .command_completion = object_add_completion,
1405 },
1406
1407STEXI
1408@item object_add
1409@findex object_add
1410Create QOM object.
1411ETEXI
1412
1413 {
1414 .name = "object_del",
1415 .args_type = "id:s",
1416 .params = "id",
1417 .help = "destroy QOM object",
1418 .cmd = hmp_object_del,
1419 .command_completion = object_del_completion,
1420 },
1421
1422STEXI
1423@item object_del
1424@findex object_del
1425Destroy QOM object.
1426ETEXI
1427
1428#ifdef CONFIG_SLIRP
1429 {
1430 .name = "hostfwd_add",
1431 .args_type = "arg1:s,arg2:s?,arg3:s?",
1432 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1433 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1434 .cmd = hmp_hostfwd_add,
1435 },
1436#endif
1437STEXI
1438@item hostfwd_add
1439@findex hostfwd_add
1440Redirect TCP or UDP connections from host to guest (requires -net user).
1441ETEXI
1442
1443#ifdef CONFIG_SLIRP
1444 {
1445 .name = "hostfwd_remove",
1446 .args_type = "arg1:s,arg2:s?,arg3:s?",
1447 .params = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1448 .help = "remove host-to-guest TCP or UDP redirection",
1449 .cmd = hmp_hostfwd_remove,
1450 },
1451
1452#endif
1453STEXI
1454@item hostfwd_remove
1455@findex hostfwd_remove
1456Remove host-to-guest TCP or UDP redirection.
1457ETEXI
1458
1459 {
1460 .name = "balloon",
1461 .args_type = "value:M",
1462 .params = "target",
1463 .help = "request VM to change its memory allocation (in MB)",
1464 .cmd = hmp_balloon,
1465 },
1466
1467STEXI
1468@item balloon @var{value}
1469@findex balloon
1470Request VM to change its memory allocation to @var{value} (in MB).
1471ETEXI
1472
1473 {
1474 .name = "set_link",
1475 .args_type = "name:s,up:b",
1476 .params = "name on|off",
1477 .help = "change the link status of a network adapter",
1478 .cmd = hmp_set_link,
1479 .command_completion = set_link_completion,
1480 },
1481
1482STEXI
1483@item set_link @var{name} [on|off]
1484@findex set_link
1485Switch link @var{name} on (i.e. up) or off (i.e. down).
1486ETEXI
1487
1488 {
1489 .name = "watchdog_action",
1490 .args_type = "action:s",
1491 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1492 .help = "change watchdog action",
1493 .cmd = hmp_watchdog_action,
1494 .command_completion = watchdog_action_completion,
1495 },
1496
1497STEXI
1498@item watchdog_action
1499@findex watchdog_action
1500Change watchdog action.
1501ETEXI
1502
1503 {
1504 .name = "acl_show",
1505 .args_type = "aclname:s",
1506 .params = "aclname",
1507 .help = "list rules in the access control list",
1508 .cmd = hmp_acl_show,
1509 },
1510
1511STEXI
1512@item acl_show @var{aclname}
1513@findex acl_show
1514List all the matching rules in the access control list, and the default
1515policy. There are currently two named access control lists,
1516@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1517certificate distinguished name, and SASL username respectively.
1518ETEXI
1519
1520 {
1521 .name = "acl_policy",
1522 .args_type = "aclname:s,policy:s",
1523 .params = "aclname allow|deny",
1524 .help = "set default access control list policy",
1525 .cmd = hmp_acl_policy,
1526 },
1527
1528STEXI
1529@item acl_policy @var{aclname} @code{allow|deny}
1530@findex acl_policy
1531Set the default access control list policy, used in the event that
1532none of the explicit rules match. The default policy at startup is
1533always @code{deny}.
1534ETEXI
1535
1536 {
1537 .name = "acl_add",
1538 .args_type = "aclname:s,match:s,policy:s,index:i?",
1539 .params = "aclname match allow|deny [index]",
1540 .help = "add a match rule to the access control list",
1541 .cmd = hmp_acl_add,
1542 },
1543
1544STEXI
1545@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1546@findex acl_add
1547Add a match rule to the access control list, allowing or denying access.
1548The match will normally be an exact username or x509 distinguished name,
1549but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1550allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1551normally be appended to the end of the ACL, but can be inserted
1552earlier in the list if the optional @var{index} parameter is supplied.
1553ETEXI
1554
1555 {
1556 .name = "acl_remove",
1557 .args_type = "aclname:s,match:s",
1558 .params = "aclname match",
1559 .help = "remove a match rule from the access control list",
1560 .cmd = hmp_acl_remove,
1561 },
1562
1563STEXI
1564@item acl_remove @var{aclname} @var{match}
1565@findex acl_remove
1566Remove the specified match rule from the access control list.
1567ETEXI
1568
1569 {
1570 .name = "acl_reset",
1571 .args_type = "aclname:s",
1572 .params = "aclname",
1573 .help = "reset the access control list",
1574 .cmd = hmp_acl_reset,
1575 },
1576
1577STEXI
1578@item acl_reset @var{aclname}
1579@findex acl_reset
1580Remove all matches from the access control list, and set the default
1581policy back to @code{deny}.
1582ETEXI
1583
1584 {
1585 .name = "nbd_server_start",
1586 .args_type = "all:-a,writable:-w,uri:s",
1587 .params = "nbd_server_start [-a] [-w] host:port",
1588 .help = "serve block devices on the given host and port",
1589 .cmd = hmp_nbd_server_start,
1590 },
1591STEXI
1592@item nbd_server_start @var{host}:@var{port}
1593@findex nbd_server_start
1594Start an NBD server on the given host and/or port. If the @option{-a}
1595option is included, all of the virtual machine's block devices that
1596have an inserted media on them are automatically exported; in this case,
1597the @option{-w} option makes the devices writable too.
1598ETEXI
1599
1600 {
1601 .name = "nbd_server_add",
1602 .args_type = "writable:-w,device:B,name:s?",
1603 .params = "nbd_server_add [-w] device [name]",
1604 .help = "export a block device via NBD",
1605 .cmd = hmp_nbd_server_add,
1606 },
1607STEXI
1608@item nbd_server_add @var{device} [ @var{name} ]
1609@findex nbd_server_add
1610Export a block device through QEMU's NBD server, which must be started
1611beforehand with @command{nbd_server_start}. The @option{-w} option makes the
1612exported device writable too. The export name is controlled by @var{name},
1613defaulting to @var{device}.
1614ETEXI
1615
1616 {
1617 .name = "nbd_server_remove",
1618 .args_type = "force:-f,name:s",
1619 .params = "nbd_server_remove [-f] name",
1620 .help = "remove an export previously exposed via NBD",
1621 .cmd = hmp_nbd_server_remove,
1622 },
1623STEXI
1624@item nbd_server_remove [-f] @var{name}
1625@findex nbd_server_remove
1626Stop exporting a block device through QEMU's NBD server, which was
1627previously started with @command{nbd_server_add}. The @option{-f}
1628option forces the server to drop the export immediately even if
1629clients are connected; otherwise the command fails unless there are no
1630clients.
1631ETEXI
1632
1633 {
1634 .name = "nbd_server_stop",
1635 .args_type = "",
1636 .params = "nbd_server_stop",
1637 .help = "stop serving block devices using the NBD protocol",
1638 .cmd = hmp_nbd_server_stop,
1639 },
1640STEXI
1641@item nbd_server_stop
1642@findex nbd_server_stop
1643Stop the QEMU embedded NBD server.
1644ETEXI
1645
1646
1647#if defined(TARGET_I386)
1648
1649 {
1650 .name = "mce",
1651 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1652 .params = "[-b] cpu bank status mcgstatus addr misc",
1653 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1654 .cmd = hmp_mce,
1655 },
1656
1657#endif
1658STEXI
1659@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1660@findex mce (x86)
1661Inject an MCE on the given CPU (x86 only).
1662ETEXI
1663
1664 {
1665 .name = "getfd",
1666 .args_type = "fdname:s",
1667 .params = "getfd name",
1668 .help = "receive a file descriptor via SCM rights and assign it a name",
1669 .cmd = hmp_getfd,
1670 },
1671
1672STEXI
1673@item getfd @var{fdname}
1674@findex getfd
1675If a file descriptor is passed alongside this command using the SCM_RIGHTS
1676mechanism on unix sockets, it is stored using the name @var{fdname} for
1677later use by other monitor commands.
1678ETEXI
1679
1680 {
1681 .name = "closefd",
1682 .args_type = "fdname:s",
1683 .params = "closefd name",
1684 .help = "close a file descriptor previously passed via SCM rights",
1685 .cmd = hmp_closefd,
1686 },
1687
1688STEXI
1689@item closefd @var{fdname}
1690@findex closefd
1691Close the file descriptor previously assigned to @var{fdname} using the
1692@code{getfd} command. This is only needed if the file descriptor was never
1693used by another monitor command.
1694ETEXI
1695
1696 {
1697 .name = "block_passwd",
1698 .args_type = "device:B,password:s",
1699 .params = "block_passwd device password",
1700 .help = "set the password of encrypted block devices",
1701 .cmd = hmp_block_passwd,
1702 },
1703
1704STEXI
1705@item block_passwd @var{device} @var{password}
1706@findex block_passwd
1707Set the encrypted device @var{device} password to @var{password}
1708
1709This command is now obsolete and will always return an error since 2.10
1710ETEXI
1711
1712 {
1713 .name = "block_set_io_throttle",
1714 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1715 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1716 .help = "change I/O throttle limits for a block drive",
1717 .cmd = hmp_block_set_io_throttle,
1718 },
1719
1720STEXI
1721@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1722@findex block_set_io_throttle
1723Change 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}.
1724@var{device} can be a block device name, a qdev ID or a QOM path.
1725ETEXI
1726
1727 {
1728 .name = "set_password",
1729 .args_type = "protocol:s,password:s,connected:s?",
1730 .params = "protocol password action-if-connected",
1731 .help = "set spice/vnc password",
1732 .cmd = hmp_set_password,
1733 },
1734
1735STEXI
1736@item set_password [ vnc | spice ] password [ action-if-connected ]
1737@findex set_password
1738Change spice/vnc password. Use zero to make the password stay valid
1739forever. @var{action-if-connected} specifies what should happen in
1740case a connection is established: @var{fail} makes the password change
1741fail. @var{disconnect} changes the password and disconnects the
1742client. @var{keep} changes the password and keeps the connection up.
1743@var{keep} is the default.
1744ETEXI
1745
1746 {
1747 .name = "expire_password",
1748 .args_type = "protocol:s,time:s",
1749 .params = "protocol time",
1750 .help = "set spice/vnc password expire-time",
1751 .cmd = hmp_expire_password,
1752 },
1753
1754STEXI
1755@item expire_password [ vnc | spice ] expire-time
1756@findex expire_password
1757Specify when a password for spice/vnc becomes
1758invalid. @var{expire-time} accepts:
1759
1760@table @var
1761@item now
1762Invalidate password instantly.
1763
1764@item never
1765Password stays valid forever.
1766
1767@item +nsec
1768Password stays valid for @var{nsec} seconds starting now.
1769
1770@item nsec
1771Password is invalidated at the given time. @var{nsec} are the seconds
1772passed since 1970, i.e. unix epoch.
1773
1774@end table
1775ETEXI
1776
1777 {
1778 .name = "chardev-add",
1779 .args_type = "args:s",
1780 .params = "args",
1781 .help = "add chardev",
1782 .cmd = hmp_chardev_add,
1783 .command_completion = chardev_add_completion,
1784 },
1785
1786STEXI
1787@item chardev-add args
1788@findex chardev-add
1789chardev-add accepts the same parameters as the -chardev command line switch.
1790
1791ETEXI
1792
1793 {
1794 .name = "chardev-change",
1795 .args_type = "id:s,args:s",
1796 .params = "id args",
1797 .help = "change chardev",
1798 .cmd = hmp_chardev_change,
1799 },
1800
1801STEXI
1802@item chardev-change args
1803@findex chardev-change
1804chardev-change accepts existing chardev @var{id} and then the same arguments
1805as the -chardev command line switch (except for "id").
1806
1807ETEXI
1808
1809 {
1810 .name = "chardev-remove",
1811 .args_type = "id:s",
1812 .params = "id",
1813 .help = "remove chardev",
1814 .cmd = hmp_chardev_remove,
1815 .command_completion = chardev_remove_completion,
1816 },
1817
1818STEXI
1819@item chardev-remove id
1820@findex chardev-remove
1821Removes the chardev @var{id}.
1822
1823ETEXI
1824
1825 {
1826 .name = "chardev-send-break",
1827 .args_type = "id:s",
1828 .params = "id",
1829 .help = "send a break on chardev",
1830 .cmd = hmp_chardev_send_break,
1831 .command_completion = chardev_remove_completion,
1832 },
1833
1834STEXI
1835@item chardev-send-break id
1836@findex chardev-send-break
1837Send a break on the chardev @var{id}.
1838
1839ETEXI
1840
1841 {
1842 .name = "qemu-io",
1843 .args_type = "device:B,command:s",
1844 .params = "[device] \"[command]\"",
1845 .help = "run a qemu-io command on a block device",
1846 .cmd = hmp_qemu_io,
1847 },
1848
1849STEXI
1850@item qemu-io @var{device} @var{command}
1851@findex qemu-io
1852Executes a qemu-io command on the given block device.
1853
1854ETEXI
1855
1856 {
1857 .name = "cpu-add",
1858 .args_type = "id:i",
1859 .params = "id",
1860 .help = "add cpu (deprecated, use device_add instead)",
1861 .cmd = hmp_cpu_add,
1862 },
1863
1864STEXI
1865@item cpu-add @var{id}
1866@findex cpu-add
1867Add CPU with id @var{id}. This command is deprecated, please
1868+use @code{device_add} instead. For details, refer to
1869'docs/cpu-hotplug.rst'.
1870ETEXI
1871
1872 {
1873 .name = "qom-list",
1874 .args_type = "path:s?",
1875 .params = "path",
1876 .help = "list QOM properties",
1877 .cmd = hmp_qom_list,
1878 .flags = "p",
1879 },
1880
1881STEXI
1882@item qom-list [@var{path}]
1883Print QOM properties of object at location @var{path}
1884ETEXI
1885
1886 {
1887 .name = "qom-set",
1888 .args_type = "path:s,property:s,value:s",
1889 .params = "path property value",
1890 .help = "set QOM property",
1891 .cmd = hmp_qom_set,
1892 .flags = "p",
1893 },
1894
1895STEXI
1896@item qom-set @var{path} @var{property} @var{value}
1897Set QOM property @var{property} of object at location @var{path} to value @var{value}
1898ETEXI
1899
1900 {
1901 .name = "info",
1902 .args_type = "item:s?",
1903 .params = "[subcommand]",
1904 .help = "show various information about the system state",
1905 .cmd = hmp_info_help,
1906 .sub_table = info_cmds,
1907 .flags = "p",
1908 },
1909
1910STEXI
1911@end table
1912ETEXI
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