xref: /qemu/hmp-commands.hx (revision e7d81004e486b0e80a674d164d8aec0e83fa812f)
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        .mhandler.cmd = do_help_cmd,
18    },
19
20STEXI
21@item help or ? [@var{cmd}]
22@findex help
23Show the help for all commands or just for command @var{cmd}.
24ETEXI
25
26    {
27        .name       = "commit",
28        .args_type  = "device:B",
29        .params     = "device|all",
30        .help       = "commit changes to the disk images (if -snapshot is used) or backing files",
31        .mhandler.cmd = do_commit,
32    },
33
34STEXI
35@item commit
36@findex commit
37Commit changes to the disk images (if -snapshot is used) or backing files.
38ETEXI
39
40    {
41        .name       = "q|quit",
42        .args_type  = "",
43        .params     = "",
44        .help       = "quit the emulator",
45        .user_print = monitor_user_noop,
46        .mhandler.cmd = hmp_quit,
47    },
48
49STEXI
50@item q or quit
51@findex quit
52Quit the emulator.
53ETEXI
54
55    {
56        .name       = "block_resize",
57        .args_type  = "device:B,size:o",
58        .params     = "device size",
59        .help       = "resize a block image",
60        .user_print = monitor_user_noop,
61        .mhandler.cmd_new = do_block_resize,
62    },
63
64STEXI
65@item block_resize
66@findex block_resize
67Resize a block image while a guest is running.  Usually requires guest
68action to see the updated size.  Resize to a lower size is supported,
69but should be used with extreme caution.  Note that this command only
70resizes image files, it can not resize block devices like LVM volumes.
71ETEXI
72
73
74    {
75        .name       = "eject",
76        .args_type  = "force:-f,device:B",
77        .params     = "[-f] device",
78        .help       = "eject a removable medium (use -f to force it)",
79        .user_print = monitor_user_noop,
80        .mhandler.cmd_new = do_eject,
81    },
82
83STEXI
84@item eject [-f] @var{device}
85@findex eject
86Eject a removable medium (use -f to force it).
87ETEXI
88
89    {
90        .name       = "drive_del",
91        .args_type  = "id:s",
92        .params     = "device",
93        .help       = "remove host block device",
94        .user_print = monitor_user_noop,
95        .mhandler.cmd_new = do_drive_del,
96    },
97
98STEXI
99@item drive_del @var{device}
100@findex drive_del
101Remove host block device.  The result is that guest generated IO is no longer
102submitted against the host device underlying the disk.  Once a drive has
103been deleted, the QEMU Block layer returns -EIO which results in IO
104errors in the guest for applications that are reading/writing to the device.
105ETEXI
106
107    {
108        .name       = "change",
109        .args_type  = "device:B,target:F,arg:s?",
110        .params     = "device filename [format]",
111        .help       = "change a removable medium, optional format",
112        .user_print = monitor_user_noop,
113        .mhandler.cmd_new = do_change,
114    },
115
116STEXI
117@item change @var{device} @var{setting}
118@findex change
119
120Change the configuration of a device.
121
122@table @option
123@item change @var{diskdevice} @var{filename} [@var{format}]
124Change the medium for a removable disk device to point to @var{filename}. eg
125
126@example
127(qemu) change ide1-cd0 /path/to/some.iso
128@end example
129
130@var{format} is optional.
131
132@item change vnc @var{display},@var{options}
133Change the configuration of the VNC server. The valid syntax for @var{display}
134and @var{options} are described at @ref{sec_invocation}. eg
135
136@example
137(qemu) change vnc localhost:1
138@end example
139
140@item change vnc password [@var{password}]
141
142Change the password associated with the VNC server. If the new password is not
143supplied, the monitor will prompt for it to be entered. VNC passwords are only
144significant up to 8 letters. eg
145
146@example
147(qemu) change vnc password
148Password: ********
149@end example
150
151@end table
152ETEXI
153
154    {
155        .name       = "screendump",
156        .args_type  = "filename:F",
157        .params     = "filename",
158        .help       = "save screen into PPM image 'filename'",
159        .user_print = monitor_user_noop,
160        .mhandler.cmd_new = do_screen_dump,
161    },
162
163STEXI
164@item screendump @var{filename}
165@findex screendump
166Save screen into PPM image @var{filename}.
167ETEXI
168
169    {
170        .name       = "logfile",
171        .args_type  = "filename:F",
172        .params     = "filename",
173        .help       = "output logs to 'filename'",
174        .mhandler.cmd = do_logfile,
175    },
176
177STEXI
178@item logfile @var{filename}
179@findex logfile
180Output logs to @var{filename}.
181ETEXI
182
183    {
184        .name       = "trace-event",
185        .args_type  = "name:s,option:b",
186        .params     = "name on|off",
187        .help       = "changes status of a specific trace event",
188        .mhandler.cmd = do_trace_event_set_state,
189    },
190
191STEXI
192@item trace-event
193@findex trace-event
194changes status of a trace event
195ETEXI
196
197#if defined(CONFIG_TRACE_SIMPLE)
198    {
199        .name       = "trace-file",
200        .args_type  = "op:s?,arg:F?",
201        .params     = "on|off|flush|set [arg]",
202        .help       = "open, close, or flush trace file, or set a new file name",
203        .mhandler.cmd = do_trace_file,
204    },
205
206STEXI
207@item trace-file on|off|flush
208@findex trace-file
209Open, close, or flush the trace file.  If no argument is given, the status of the trace file is displayed.
210ETEXI
211#endif
212
213    {
214        .name       = "log",
215        .args_type  = "items:s",
216        .params     = "item1[,...]",
217        .help       = "activate logging of the specified items to '/tmp/qemu.log'",
218        .mhandler.cmd = do_log,
219    },
220
221STEXI
222@item log @var{item1}[,...]
223@findex log
224Activate logging of the specified items to @file{/tmp/qemu.log}.
225ETEXI
226
227    {
228        .name       = "savevm",
229        .args_type  = "name:s?",
230        .params     = "[tag|id]",
231        .help       = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
232        .mhandler.cmd = do_savevm,
233    },
234
235STEXI
236@item savevm [@var{tag}|@var{id}]
237@findex savevm
238Create a snapshot of the whole virtual machine. If @var{tag} is
239provided, it is used as human readable identifier. If there is already
240a snapshot with the same tag or ID, it is replaced. More info at
241@ref{vm_snapshots}.
242ETEXI
243
244    {
245        .name       = "loadvm",
246        .args_type  = "name:s",
247        .params     = "tag|id",
248        .help       = "restore a VM snapshot from its tag or id",
249        .mhandler.cmd = do_loadvm,
250    },
251
252STEXI
253@item loadvm @var{tag}|@var{id}
254@findex loadvm
255Set the whole virtual machine to the snapshot identified by the tag
256@var{tag} or the unique snapshot ID @var{id}.
257ETEXI
258
259    {
260        .name       = "delvm",
261        .args_type  = "name:s",
262        .params     = "tag|id",
263        .help       = "delete a VM snapshot from its tag or id",
264        .mhandler.cmd = do_delvm,
265    },
266
267STEXI
268@item delvm @var{tag}|@var{id}
269@findex delvm
270Delete the snapshot identified by @var{tag} or @var{id}.
271ETEXI
272
273    {
274        .name       = "singlestep",
275        .args_type  = "option:s?",
276        .params     = "[on|off]",
277        .help       = "run emulation in singlestep mode or switch to normal mode",
278        .mhandler.cmd = do_singlestep,
279    },
280
281STEXI
282@item singlestep [off]
283@findex singlestep
284Run the emulation in single step mode.
285If called with option off, the emulation returns to normal mode.
286ETEXI
287
288    {
289        .name       = "stop",
290        .args_type  = "",
291        .params     = "",
292        .help       = "stop emulation",
293        .mhandler.cmd = hmp_stop,
294    },
295
296STEXI
297@item stop
298@findex stop
299Stop emulation.
300ETEXI
301
302    {
303        .name       = "c|cont",
304        .args_type  = "",
305        .params     = "",
306        .help       = "resume emulation",
307        .user_print = monitor_user_noop,
308        .mhandler.cmd_new = do_cont,
309    },
310
311STEXI
312@item c or cont
313@findex cont
314Resume emulation.
315ETEXI
316
317    {
318        .name       = "gdbserver",
319        .args_type  = "device:s?",
320        .params     = "[device]",
321        .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
322        .mhandler.cmd = do_gdbserver,
323    },
324
325STEXI
326@item gdbserver [@var{port}]
327@findex gdbserver
328Start gdbserver session (default @var{port}=1234)
329ETEXI
330
331    {
332        .name       = "x",
333        .args_type  = "fmt:/,addr:l",
334        .params     = "/fmt addr",
335        .help       = "virtual memory dump starting at 'addr'",
336        .mhandler.cmd = do_memory_dump,
337    },
338
339STEXI
340@item x/fmt @var{addr}
341@findex x
342Virtual memory dump starting at @var{addr}.
343ETEXI
344
345    {
346        .name       = "xp",
347        .args_type  = "fmt:/,addr:l",
348        .params     = "/fmt addr",
349        .help       = "physical memory dump starting at 'addr'",
350        .mhandler.cmd = do_physical_memory_dump,
351    },
352
353STEXI
354@item xp /@var{fmt} @var{addr}
355@findex xp
356Physical memory dump starting at @var{addr}.
357
358@var{fmt} is a format which tells the command how to format the
359data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
360
361@table @var
362@item count
363is the number of items to be dumped.
364
365@item format
366can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
367c (char) or i (asm instruction).
368
369@item size
370can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
371@code{h} or @code{w} can be specified with the @code{i} format to
372respectively select 16 or 32 bit code instruction size.
373
374@end table
375
376Examples:
377@itemize
378@item
379Dump 10 instructions at the current instruction pointer:
380@example
381(qemu) x/10i $eip
3820x90107063:  ret
3830x90107064:  sti
3840x90107065:  lea    0x0(%esi,1),%esi
3850x90107069:  lea    0x0(%edi,1),%edi
3860x90107070:  ret
3870x90107071:  jmp    0x90107080
3880x90107073:  nop
3890x90107074:  nop
3900x90107075:  nop
3910x90107076:  nop
392@end example
393
394@item
395Dump 80 16 bit values at the start of the video memory.
396@smallexample
397(qemu) xp/80hx 0xb8000
3980x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
3990x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
4000x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
4010x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
4020x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
4030x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
4040x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
4050x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
4060x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
4070x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
408@end smallexample
409@end itemize
410ETEXI
411
412    {
413        .name       = "p|print",
414        .args_type  = "fmt:/,val:l",
415        .params     = "/fmt expr",
416        .help       = "print expression value (use $reg for CPU register access)",
417        .mhandler.cmd = do_print,
418    },
419
420STEXI
421@item p or print/@var{fmt} @var{expr}
422@findex print
423
424Print expression value. Only the @var{format} part of @var{fmt} is
425used.
426ETEXI
427
428    {
429        .name       = "i",
430        .args_type  = "fmt:/,addr:i,index:i.",
431        .params     = "/fmt addr",
432        .help       = "I/O port read",
433        .mhandler.cmd = do_ioport_read,
434    },
435
436STEXI
437Read I/O port.
438ETEXI
439
440    {
441        .name       = "o",
442        .args_type  = "fmt:/,addr:i,val:i",
443        .params     = "/fmt addr value",
444        .help       = "I/O port write",
445        .mhandler.cmd = do_ioport_write,
446    },
447
448STEXI
449Write to I/O port.
450ETEXI
451
452    {
453        .name       = "sendkey",
454        .args_type  = "string:s,hold_time:i?",
455        .params     = "keys [hold_ms]",
456        .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
457        .mhandler.cmd = do_sendkey,
458    },
459
460STEXI
461@item sendkey @var{keys}
462@findex sendkey
463
464Send @var{keys} to the emulator. @var{keys} could be the name of the
465key or @code{#} followed by the raw value in either decimal or hexadecimal
466format. Use @code{-} to press several keys simultaneously. Example:
467@example
468sendkey ctrl-alt-f1
469@end example
470
471This command is useful to send keys that your graphical user interface
472intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
473ETEXI
474
475    {
476        .name       = "system_reset",
477        .args_type  = "",
478        .params     = "",
479        .help       = "reset the system",
480        .mhandler.cmd = hmp_system_reset,
481    },
482
483STEXI
484@item system_reset
485@findex system_reset
486
487Reset the system.
488ETEXI
489
490    {
491        .name       = "system_powerdown",
492        .args_type  = "",
493        .params     = "",
494        .help       = "send system power down event",
495        .mhandler.cmd = hmp_system_powerdown,
496    },
497
498STEXI
499@item system_powerdown
500@findex system_powerdown
501
502Power down the system (if supported).
503ETEXI
504
505    {
506        .name       = "sum",
507        .args_type  = "start:i,size:i",
508        .params     = "addr size",
509        .help       = "compute the checksum of a memory region",
510        .mhandler.cmd = do_sum,
511    },
512
513STEXI
514@item sum @var{addr} @var{size}
515@findex sum
516
517Compute the checksum of a memory region.
518ETEXI
519
520    {
521        .name       = "usb_add",
522        .args_type  = "devname:s",
523        .params     = "device",
524        .help       = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",
525        .mhandler.cmd = do_usb_add,
526    },
527
528STEXI
529@item usb_add @var{devname}
530@findex usb_add
531
532Add the USB device @var{devname}.  For details of available devices see
533@ref{usb_devices}
534ETEXI
535
536    {
537        .name       = "usb_del",
538        .args_type  = "devname:s",
539        .params     = "device",
540        .help       = "remove USB device 'bus.addr'",
541        .mhandler.cmd = do_usb_del,
542    },
543
544STEXI
545@item usb_del @var{devname}
546@findex usb_del
547
548Remove the USB device @var{devname} from the QEMU virtual USB
549hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
550command @code{info usb} to see the devices you can remove.
551ETEXI
552
553    {
554        .name       = "device_add",
555        .args_type  = "device:O",
556        .params     = "driver[,prop=value][,...]",
557        .help       = "add device, like -device on the command line",
558        .user_print = monitor_user_noop,
559        .mhandler.cmd_new = do_device_add,
560    },
561
562STEXI
563@item device_add @var{config}
564@findex device_add
565
566Add device.
567ETEXI
568
569    {
570        .name       = "device_del",
571        .args_type  = "id:s",
572        .params     = "device",
573        .help       = "remove device",
574        .user_print = monitor_user_noop,
575        .mhandler.cmd_new = do_device_del,
576    },
577
578STEXI
579@item device_del @var{id}
580@findex device_del
581
582Remove device @var{id}.
583ETEXI
584
585    {
586        .name       = "cpu",
587        .args_type  = "index:i",
588        .params     = "index",
589        .help       = "set the default CPU",
590        .mhandler.cmd = hmp_cpu,
591    },
592
593STEXI
594@item cpu @var{index}
595@findex cpu
596Set the default CPU.
597ETEXI
598
599    {
600        .name       = "mouse_move",
601        .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
602        .params     = "dx dy [dz]",
603        .help       = "send mouse move events",
604        .mhandler.cmd = do_mouse_move,
605    },
606
607STEXI
608@item mouse_move @var{dx} @var{dy} [@var{dz}]
609@findex mouse_move
610Move the active mouse to the specified coordinates @var{dx} @var{dy}
611with optional scroll axis @var{dz}.
612ETEXI
613
614    {
615        .name       = "mouse_button",
616        .args_type  = "button_state:i",
617        .params     = "state",
618        .help       = "change mouse button state (1=L, 2=M, 4=R)",
619        .mhandler.cmd = do_mouse_button,
620    },
621
622STEXI
623@item mouse_button @var{val}
624@findex mouse_button
625Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
626ETEXI
627
628    {
629        .name       = "mouse_set",
630        .args_type  = "index:i",
631        .params     = "index",
632        .help       = "set which mouse device receives events",
633        .mhandler.cmd = do_mouse_set,
634    },
635
636STEXI
637@item mouse_set @var{index}
638@findex mouse_set
639Set which mouse device receives events at given @var{index}, index
640can be obtained with
641@example
642info mice
643@end example
644ETEXI
645
646#ifdef HAS_AUDIO
647    {
648        .name       = "wavcapture",
649        .args_type  = "path:F,freq:i?,bits:i?,nchannels:i?",
650        .params     = "path [frequency [bits [channels]]]",
651        .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
652        .mhandler.cmd = do_wav_capture,
653    },
654#endif
655STEXI
656@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
657@findex wavcapture
658Capture audio into @var{filename}. Using sample rate @var{frequency}
659bits per sample @var{bits} and number of channels @var{channels}.
660
661Defaults:
662@itemize @minus
663@item Sample rate = 44100 Hz - CD quality
664@item Bits = 16
665@item Number of channels = 2 - Stereo
666@end itemize
667ETEXI
668
669#ifdef HAS_AUDIO
670    {
671        .name       = "stopcapture",
672        .args_type  = "n:i",
673        .params     = "capture index",
674        .help       = "stop capture",
675        .mhandler.cmd = do_stop_capture,
676    },
677#endif
678STEXI
679@item stopcapture @var{index}
680@findex stopcapture
681Stop capture with a given @var{index}, index can be obtained with
682@example
683info capture
684@end example
685ETEXI
686
687    {
688        .name       = "memsave",
689        .args_type  = "val:l,size:i,filename:s",
690        .params     = "addr size file",
691        .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
692        .user_print = monitor_user_noop,
693        .mhandler.cmd_new = do_memory_save,
694    },
695
696STEXI
697@item memsave @var{addr} @var{size} @var{file}
698@findex memsave
699save to disk virtual memory dump starting at @var{addr} of size @var{size}.
700ETEXI
701
702    {
703        .name       = "pmemsave",
704        .args_type  = "val:l,size:i,filename:s",
705        .params     = "addr size file",
706        .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
707        .user_print = monitor_user_noop,
708        .mhandler.cmd_new = do_physical_memory_save,
709    },
710
711STEXI
712@item pmemsave @var{addr} @var{size} @var{file}
713@findex pmemsave
714save to disk physical memory dump starting at @var{addr} of size @var{size}.
715ETEXI
716
717    {
718        .name       = "boot_set",
719        .args_type  = "bootdevice:s",
720        .params     = "bootdevice",
721        .help       = "define new values for the boot device list",
722        .mhandler.cmd = do_boot_set,
723    },
724
725STEXI
726@item boot_set @var{bootdevicelist}
727@findex boot_set
728
729Define new values for the boot device list. Those values will override
730the values specified on the command line through the @code{-boot} option.
731
732The values that can be specified here depend on the machine type, but are
733the same that can be specified in the @code{-boot} command line option.
734ETEXI
735
736#if defined(TARGET_I386)
737    {
738        .name       = "nmi",
739        .args_type  = "",
740        .params     = "",
741        .help       = "inject an NMI on all guest's CPUs",
742        .user_print = monitor_user_noop,
743        .mhandler.cmd_new = do_inject_nmi,
744    },
745#endif
746STEXI
747@item nmi @var{cpu}
748@findex nmi
749Inject an NMI on the given CPU (x86 only).
750ETEXI
751
752    {
753        .name       = "migrate",
754        .args_type  = "detach:-d,blk:-b,inc:-i,uri:s",
755        .params     = "[-d] [-b] [-i] uri",
756        .help       = "migrate to URI (using -d to not wait for completion)"
757		      "\n\t\t\t -b for migration without shared storage with"
758		      " full copy of disk\n\t\t\t -i for migration without "
759		      "shared storage with incremental copy of disk "
760		      "(base image shared between src and destination)",
761        .user_print = monitor_user_noop,
762	.mhandler.cmd_new = do_migrate,
763    },
764
765
766STEXI
767@item migrate [-d] [-b] [-i] @var{uri}
768@findex migrate
769Migrate to @var{uri} (using -d to not wait for completion).
770	-b for migration with full copy of disk
771	-i for migration with incremental copy of disk (base image is shared)
772ETEXI
773
774    {
775        .name       = "migrate_cancel",
776        .args_type  = "",
777        .params     = "",
778        .help       = "cancel the current VM migration",
779        .user_print = monitor_user_noop,
780        .mhandler.cmd_new = do_migrate_cancel,
781    },
782
783STEXI
784@item migrate_cancel
785@findex migrate_cancel
786Cancel the current VM migration.
787ETEXI
788
789    {
790        .name       = "migrate_set_speed",
791        .args_type  = "value:o",
792        .params     = "value",
793        .help       = "set maximum speed (in bytes) for migrations. "
794	"Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
795        .user_print = monitor_user_noop,
796        .mhandler.cmd_new = do_migrate_set_speed,
797    },
798
799STEXI
800@item migrate_set_speed @var{value}
801@findex migrate_set_speed
802Set maximum speed to @var{value} (in bytes) for migrations.
803ETEXI
804
805    {
806        .name       = "migrate_set_downtime",
807        .args_type  = "value:T",
808        .params     = "value",
809        .help       = "set maximum tolerated downtime (in seconds) for migrations",
810        .user_print = monitor_user_noop,
811        .mhandler.cmd_new = do_migrate_set_downtime,
812    },
813
814STEXI
815@item migrate_set_downtime @var{second}
816@findex migrate_set_downtime
817Set maximum tolerated downtime (in seconds) for migration.
818ETEXI
819
820    {
821        .name       = "client_migrate_info",
822        .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
823        .params     = "protocol hostname port tls-port cert-subject",
824        .help       = "send migration info to spice/vnc client",
825        .user_print = monitor_user_noop,
826        .mhandler.cmd_async = client_migrate_info,
827        .flags      = MONITOR_CMD_ASYNC,
828    },
829
830STEXI
831@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
832@findex client_migrate_info
833Set the spice/vnc connection info for the migration target.  The spice/vnc
834server will ask the spice/vnc client to automatically reconnect using the
835new parameters (if specified) once the vm migration finished successfully.
836ETEXI
837
838    {
839        .name       = "snapshot_blkdev",
840        .args_type  = "device:B,snapshot-file:s?,format:s?",
841        .params     = "device [new-image-file] [format]",
842        .help       = "initiates a live snapshot\n\t\t\t"
843                      "of device. If a new image file is specified, the\n\t\t\t"
844                      "new image file will become the new root image.\n\t\t\t"
845                      "If format is specified, the snapshot file will\n\t\t\t"
846                      "be created in that format. Otherwise the\n\t\t\t"
847                      "snapshot will be internal! (currently unsupported)",
848        .mhandler.cmd_new = do_snapshot_blkdev,
849    },
850
851STEXI
852@item snapshot_blkdev
853@findex snapshot_blkdev
854Snapshot device, using snapshot file as target if provided
855ETEXI
856
857#if defined(TARGET_I386)
858    {
859        .name       = "drive_add",
860        .args_type  = "pci_addr:s,opts:s",
861        .params     = "[[<domain>:]<bus>:]<slot>\n"
862                      "[file=file][,if=type][,bus=n]\n"
863                      "[,unit=m][,media=d][,index=i]\n"
864                      "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
865                      "[,snapshot=on|off][,cache=on|off]\n"
866                      "[,readonly=on|off][,copy-on-read=on|off]",
867        .help       = "add drive to PCI storage controller",
868        .mhandler.cmd = drive_hot_add,
869    },
870#endif
871
872STEXI
873@item drive_add
874@findex drive_add
875Add drive to PCI storage controller.
876ETEXI
877
878#if defined(TARGET_I386)
879    {
880        .name       = "pci_add",
881        .args_type  = "pci_addr:s,type:s,opts:s?",
882        .params     = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...",
883        .help       = "hot-add PCI device",
884        .mhandler.cmd = pci_device_hot_add,
885    },
886#endif
887
888STEXI
889@item pci_add
890@findex pci_add
891Hot-add PCI device.
892ETEXI
893
894#if defined(TARGET_I386)
895    {
896        .name       = "pci_del",
897        .args_type  = "pci_addr:s",
898        .params     = "[[<domain>:]<bus>:]<slot>",
899        .help       = "hot remove PCI device",
900        .mhandler.cmd = do_pci_device_hot_remove,
901    },
902#endif
903
904STEXI
905@item pci_del
906@findex pci_del
907Hot remove PCI device.
908ETEXI
909
910    {
911        .name       = "pcie_aer_inject_error",
912        .args_type  = "advisory_non_fatal:-a,correctable:-c,"
913	              "id:s,error_status:s,"
914	              "header0:i?,header1:i?,header2:i?,header3:i?,"
915	              "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
916        .params     = "[-a] [-c] id "
917                      "<error_status> [<tlp header> [<tlp header prefix>]]",
918        .help       = "inject pcie aer error\n\t\t\t"
919	              " -a for advisory non fatal error\n\t\t\t"
920	              " -c for correctable error\n\t\t\t"
921                      "<id> = qdev device id\n\t\t\t"
922                      "<error_status> = error string or 32bit\n\t\t\t"
923                      "<tlb header> = 32bit x 4\n\t\t\t"
924                      "<tlb header prefix> = 32bit x 4",
925        .user_print  = pcie_aer_inject_error_print,
926        .mhandler.cmd_new = do_pcie_aer_inject_error,
927    },
928
929STEXI
930@item pcie_aer_inject_error
931@findex pcie_aer_inject_error
932Inject PCIe AER error
933ETEXI
934
935    {
936        .name       = "host_net_add",
937        .args_type  = "device:s,opts:s?",
938        .params     = "tap|user|socket|vde|dump [options]",
939        .help       = "add host VLAN client",
940        .mhandler.cmd = net_host_device_add,
941    },
942
943STEXI
944@item host_net_add
945@findex host_net_add
946Add host VLAN client.
947ETEXI
948
949    {
950        .name       = "host_net_remove",
951        .args_type  = "vlan_id:i,device:s",
952        .params     = "vlan_id name",
953        .help       = "remove host VLAN client",
954        .mhandler.cmd = net_host_device_remove,
955    },
956
957STEXI
958@item host_net_remove
959@findex host_net_remove
960Remove host VLAN client.
961ETEXI
962
963    {
964        .name       = "netdev_add",
965        .args_type  = "netdev:O",
966        .params     = "[user|tap|socket],id=str[,prop=value][,...]",
967        .help       = "add host network device",
968        .user_print = monitor_user_noop,
969        .mhandler.cmd_new = do_netdev_add,
970    },
971
972STEXI
973@item netdev_add
974@findex netdev_add
975Add host network device.
976ETEXI
977
978    {
979        .name       = "netdev_del",
980        .args_type  = "id:s",
981        .params     = "id",
982        .help       = "remove host network device",
983        .user_print = monitor_user_noop,
984        .mhandler.cmd_new = do_netdev_del,
985    },
986
987STEXI
988@item netdev_del
989@findex netdev_del
990Remove host network device.
991ETEXI
992
993#ifdef CONFIG_SLIRP
994    {
995        .name       = "hostfwd_add",
996        .args_type  = "arg1:s,arg2:s?,arg3:s?",
997        .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
998        .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
999        .mhandler.cmd = net_slirp_hostfwd_add,
1000    },
1001#endif
1002STEXI
1003@item hostfwd_add
1004@findex hostfwd_add
1005Redirect TCP or UDP connections from host to guest (requires -net user).
1006ETEXI
1007
1008#ifdef CONFIG_SLIRP
1009    {
1010        .name       = "hostfwd_remove",
1011        .args_type  = "arg1:s,arg2:s?,arg3:s?",
1012        .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
1013        .help       = "remove host-to-guest TCP or UDP redirection",
1014        .mhandler.cmd = net_slirp_hostfwd_remove,
1015    },
1016
1017#endif
1018STEXI
1019@item hostfwd_remove
1020@findex hostfwd_remove
1021Remove host-to-guest TCP or UDP redirection.
1022ETEXI
1023
1024    {
1025        .name       = "balloon",
1026        .args_type  = "value:M",
1027        .params     = "target",
1028        .help       = "request VM to change its memory allocation (in MB)",
1029        .user_print = monitor_user_noop,
1030        .mhandler.cmd_async = do_balloon,
1031        .flags      = MONITOR_CMD_ASYNC,
1032    },
1033
1034STEXI
1035@item balloon @var{value}
1036@findex balloon
1037Request VM to change its memory allocation to @var{value} (in MB).
1038ETEXI
1039
1040    {
1041        .name       = "set_link",
1042        .args_type  = "name:s,up:b",
1043        .params     = "name on|off",
1044        .help       = "change the link status of a network adapter",
1045        .user_print = monitor_user_noop,
1046        .mhandler.cmd_new = do_set_link,
1047    },
1048
1049STEXI
1050@item set_link @var{name} [on|off]
1051@findex set_link
1052Switch link @var{name} on (i.e. up) or off (i.e. down).
1053ETEXI
1054
1055    {
1056        .name       = "watchdog_action",
1057        .args_type  = "action:s",
1058        .params     = "[reset|shutdown|poweroff|pause|debug|none]",
1059        .help       = "change watchdog action",
1060        .mhandler.cmd = do_watchdog_action,
1061    },
1062
1063STEXI
1064@item watchdog_action
1065@findex watchdog_action
1066Change watchdog action.
1067ETEXI
1068
1069    {
1070        .name       = "acl_show",
1071        .args_type  = "aclname:s",
1072        .params     = "aclname",
1073        .help       = "list rules in the access control list",
1074        .mhandler.cmd = do_acl_show,
1075    },
1076
1077STEXI
1078@item acl_show @var{aclname}
1079@findex acl_show
1080List all the matching rules in the access control list, and the default
1081policy. There are currently two named access control lists,
1082@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1083certificate distinguished name, and SASL username respectively.
1084ETEXI
1085
1086    {
1087        .name       = "acl_policy",
1088        .args_type  = "aclname:s,policy:s",
1089        .params     = "aclname allow|deny",
1090        .help       = "set default access control list policy",
1091        .mhandler.cmd = do_acl_policy,
1092    },
1093
1094STEXI
1095@item acl_policy @var{aclname} @code{allow|deny}
1096@findex acl_policy
1097Set the default access control list policy, used in the event that
1098none of the explicit rules match. The default policy at startup is
1099always @code{deny}.
1100ETEXI
1101
1102    {
1103        .name       = "acl_add",
1104        .args_type  = "aclname:s,match:s,policy:s,index:i?",
1105        .params     = "aclname match allow|deny [index]",
1106        .help       = "add a match rule to the access control list",
1107        .mhandler.cmd = do_acl_add,
1108    },
1109
1110STEXI
1111@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1112@findex acl_add
1113Add a match rule to the access control list, allowing or denying access.
1114The match will normally be an exact username or x509 distinguished name,
1115but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1116allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1117normally be appended to the end of the ACL, but can be inserted
1118earlier in the list if the optional @var{index} parameter is supplied.
1119ETEXI
1120
1121    {
1122        .name       = "acl_remove",
1123        .args_type  = "aclname:s,match:s",
1124        .params     = "aclname match",
1125        .help       = "remove a match rule from the access control list",
1126        .mhandler.cmd = do_acl_remove,
1127    },
1128
1129STEXI
1130@item acl_remove @var{aclname} @var{match}
1131@findex acl_remove
1132Remove the specified match rule from the access control list.
1133ETEXI
1134
1135    {
1136        .name       = "acl_reset",
1137        .args_type  = "aclname:s",
1138        .params     = "aclname",
1139        .help       = "reset the access control list",
1140        .mhandler.cmd = do_acl_reset,
1141    },
1142
1143STEXI
1144@item acl_reset @var{aclname}
1145@findex acl_reset
1146Remove all matches from the access control list, and set the default
1147policy back to @code{deny}.
1148ETEXI
1149
1150#if defined(TARGET_I386)
1151
1152    {
1153        .name       = "mce",
1154        .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1155        .params     = "[-b] cpu bank status mcgstatus addr misc",
1156        .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1157        .mhandler.cmd = do_inject_mce,
1158    },
1159
1160#endif
1161STEXI
1162@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1163@findex mce (x86)
1164Inject an MCE on the given CPU (x86 only).
1165ETEXI
1166
1167    {
1168        .name       = "getfd",
1169        .args_type  = "fdname:s",
1170        .params     = "getfd name",
1171        .help       = "receive a file descriptor via SCM rights and assign it a name",
1172        .user_print = monitor_user_noop,
1173        .mhandler.cmd_new = do_getfd,
1174    },
1175
1176STEXI
1177@item getfd @var{fdname}
1178@findex getfd
1179If a file descriptor is passed alongside this command using the SCM_RIGHTS
1180mechanism on unix sockets, it is stored using the name @var{fdname} for
1181later use by other monitor commands.
1182ETEXI
1183
1184    {
1185        .name       = "closefd",
1186        .args_type  = "fdname:s",
1187        .params     = "closefd name",
1188        .help       = "close a file descriptor previously passed via SCM rights",
1189        .user_print = monitor_user_noop,
1190        .mhandler.cmd_new = do_closefd,
1191    },
1192
1193STEXI
1194@item closefd @var{fdname}
1195@findex closefd
1196Close the file descriptor previously assigned to @var{fdname} using the
1197@code{getfd} command. This is only needed if the file descriptor was never
1198used by another monitor command.
1199ETEXI
1200
1201    {
1202        .name       = "block_passwd",
1203        .args_type  = "device:B,password:s",
1204        .params     = "block_passwd device password",
1205        .help       = "set the password of encrypted block devices",
1206        .user_print = monitor_user_noop,
1207        .mhandler.cmd_new = do_block_set_passwd,
1208    },
1209
1210STEXI
1211@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1212@findex block_set_io_throttle
1213Change 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}
1214ETEXI
1215
1216    {
1217        .name       = "block_set_io_throttle",
1218        .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1219        .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1220        .help       = "change I/O throttle limits for a block drive",
1221        .user_print = monitor_user_noop,
1222        .mhandler.cmd_new = do_block_set_io_throttle,
1223    },
1224
1225STEXI
1226@item block_passwd @var{device} @var{password}
1227@findex block_passwd
1228Set the encrypted device @var{device} password to @var{password}
1229ETEXI
1230
1231    {
1232        .name       = "set_password",
1233        .args_type  = "protocol:s,password:s,connected:s?",
1234        .params     = "protocol password action-if-connected",
1235        .help       = "set spice/vnc password",
1236        .user_print = monitor_user_noop,
1237        .mhandler.cmd_new = set_password,
1238    },
1239
1240STEXI
1241@item set_password [ vnc | spice ] password [ action-if-connected ]
1242@findex set_password
1243
1244Change spice/vnc password.  Use zero to make the password stay valid
1245forever.  @var{action-if-connected} specifies what should happen in
1246case a connection is established: @var{fail} makes the password change
1247fail.  @var{disconnect} changes the password and disconnects the
1248client.  @var{keep} changes the password and keeps the connection up.
1249@var{keep} is the default.
1250ETEXI
1251
1252    {
1253        .name       = "expire_password",
1254        .args_type  = "protocol:s,time:s",
1255        .params     = "protocol time",
1256        .help       = "set spice/vnc password expire-time",
1257        .user_print = monitor_user_noop,
1258        .mhandler.cmd_new = expire_password,
1259    },
1260
1261STEXI
1262@item expire_password [ vnc | spice ] expire-time
1263@findex expire_password
1264
1265Specify when a password for spice/vnc becomes
1266invalid. @var{expire-time} accepts:
1267
1268@table @var
1269@item now
1270Invalidate password instantly.
1271
1272@item never
1273Password stays valid forever.
1274
1275@item +nsec
1276Password stays valid for @var{nsec} seconds starting now.
1277
1278@item nsec
1279Password is invalidated at the given time.  @var{nsec} are the seconds
1280passed since 1970, i.e. unix epoch.
1281
1282@end table
1283ETEXI
1284
1285    {
1286        .name       = "info",
1287        .args_type  = "item:s?",
1288        .params     = "[subcommand]",
1289        .help       = "show various information about the system state",
1290        .mhandler.cmd = do_info,
1291    },
1292
1293STEXI
1294@item info @var{subcommand}
1295@findex info
1296Show various information about the system state.
1297
1298@table @option
1299@item info version
1300show the version of QEMU
1301@item info network
1302show the various VLANs and the associated devices
1303@item info chardev
1304show the character devices
1305@item info block
1306show the block devices
1307@item info blockstats
1308show block device statistics
1309@item info registers
1310show the cpu registers
1311@item info cpus
1312show infos for each CPU
1313@item info history
1314show the command line history
1315@item info irq
1316show the interrupts statistics (if available)
1317@item info pic
1318show i8259 (PIC) state
1319@item info pci
1320show emulated PCI device info
1321@item info tlb
1322show virtual to physical memory mappings (i386, SH4, SPARC, and PPC only)
1323@item info mem
1324show the active virtual memory mappings (i386 only)
1325@item info jit
1326show dynamic compiler info
1327@item info numa
1328show NUMA information
1329@item info kvm
1330show KVM information
1331@item info usb
1332show USB devices plugged on the virtual USB hub
1333@item info usbhost
1334show all USB host devices
1335@item info profile
1336show profiling information
1337@item info capture
1338show information about active capturing
1339@item info snapshots
1340show list of VM snapshots
1341@item info status
1342show the current VM status (running|paused)
1343@item info pcmcia
1344show guest PCMCIA status
1345@item info mice
1346show which guest mouse is receiving events
1347@item info vnc
1348show the vnc server status
1349@item info name
1350show the current VM name
1351@item info uuid
1352show the current VM UUID
1353@item info cpustats
1354show CPU statistics
1355@item info usernet
1356show user network stack connection states
1357@item info migrate
1358show migration status
1359@item info balloon
1360show balloon information
1361@item info qtree
1362show device tree
1363@item info qdm
1364show qdev device model list
1365@item info roms
1366show roms
1367@end table
1368ETEXI
1369
1370#ifdef CONFIG_TRACE_SIMPLE
1371STEXI
1372@item info trace
1373show contents of trace buffer
1374ETEXI
1375#endif
1376
1377STEXI
1378@item info trace-events
1379show available trace events and their state
1380ETEXI
1381
1382STEXI
1383@end table
1384ETEXI
1385