xref: /openbmc/qemu/hmp-commands.hx (revision 7c6da3de)
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_new = do_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_SIMPLE_TRACE)
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        .user_print = monitor_user_noop,
294        .mhandler.cmd_new = do_stop,
295    },
296
297STEXI
298@item stop
299@findex stop
300Stop emulation.
301ETEXI
302
303    {
304        .name       = "c|cont",
305        .args_type  = "",
306        .params     = "",
307        .help       = "resume emulation",
308        .user_print = monitor_user_noop,
309        .mhandler.cmd_new = do_cont,
310    },
311
312STEXI
313@item c or cont
314@findex cont
315Resume emulation.
316ETEXI
317
318    {
319        .name       = "gdbserver",
320        .args_type  = "device:s?",
321        .params     = "[device]",
322        .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
323        .mhandler.cmd = do_gdbserver,
324    },
325
326STEXI
327@item gdbserver [@var{port}]
328@findex gdbserver
329Start gdbserver session (default @var{port}=1234)
330ETEXI
331
332    {
333        .name       = "x",
334        .args_type  = "fmt:/,addr:l",
335        .params     = "/fmt addr",
336        .help       = "virtual memory dump starting at 'addr'",
337        .mhandler.cmd = do_memory_dump,
338    },
339
340STEXI
341@item x/fmt @var{addr}
342@findex x
343Virtual memory dump starting at @var{addr}.
344ETEXI
345
346    {
347        .name       = "xp",
348        .args_type  = "fmt:/,addr:l",
349        .params     = "/fmt addr",
350        .help       = "physical memory dump starting at 'addr'",
351        .mhandler.cmd = do_physical_memory_dump,
352    },
353
354STEXI
355@item xp /@var{fmt} @var{addr}
356@findex xp
357Physical memory dump starting at @var{addr}.
358
359@var{fmt} is a format which tells the command how to format the
360data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
361
362@table @var
363@item count
364is the number of items to be dumped.
365
366@item format
367can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
368c (char) or i (asm instruction).
369
370@item size
371can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
372@code{h} or @code{w} can be specified with the @code{i} format to
373respectively select 16 or 32 bit code instruction size.
374
375@end table
376
377Examples:
378@itemize
379@item
380Dump 10 instructions at the current instruction pointer:
381@example
382(qemu) x/10i $eip
3830x90107063:  ret
3840x90107064:  sti
3850x90107065:  lea    0x0(%esi,1),%esi
3860x90107069:  lea    0x0(%edi,1),%edi
3870x90107070:  ret
3880x90107071:  jmp    0x90107080
3890x90107073:  nop
3900x90107074:  nop
3910x90107075:  nop
3920x90107076:  nop
393@end example
394
395@item
396Dump 80 16 bit values at the start of the video memory.
397@smallexample
398(qemu) xp/80hx 0xb8000
3990x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
4000x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
4010x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
4020x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
4030x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
4040x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
4050x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
4060x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
4070x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
4080x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
409@end smallexample
410@end itemize
411ETEXI
412
413    {
414        .name       = "p|print",
415        .args_type  = "fmt:/,val:l",
416        .params     = "/fmt expr",
417        .help       = "print expression value (use $reg for CPU register access)",
418        .mhandler.cmd = do_print,
419    },
420
421STEXI
422@item p or print/@var{fmt} @var{expr}
423@findex print
424
425Print expression value. Only the @var{format} part of @var{fmt} is
426used.
427ETEXI
428
429    {
430        .name       = "i",
431        .args_type  = "fmt:/,addr:i,index:i.",
432        .params     = "/fmt addr",
433        .help       = "I/O port read",
434        .mhandler.cmd = do_ioport_read,
435    },
436
437STEXI
438Read I/O port.
439ETEXI
440
441    {
442        .name       = "o",
443        .args_type  = "fmt:/,addr:i,val:i",
444        .params     = "/fmt addr value",
445        .help       = "I/O port write",
446        .mhandler.cmd = do_ioport_write,
447    },
448
449STEXI
450Write to I/O port.
451ETEXI
452
453    {
454        .name       = "sendkey",
455        .args_type  = "string:s,hold_time:i?",
456        .params     = "keys [hold_ms]",
457        .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
458        .mhandler.cmd = do_sendkey,
459    },
460
461STEXI
462@item sendkey @var{keys}
463@findex sendkey
464
465Send @var{keys} to the emulator. @var{keys} could be the name of the
466key or @code{#} followed by the raw value in either decimal or hexadecimal
467format. Use @code{-} to press several keys simultaneously. Example:
468@example
469sendkey ctrl-alt-f1
470@end example
471
472This command is useful to send keys that your graphical user interface
473intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
474ETEXI
475
476    {
477        .name       = "system_reset",
478        .args_type  = "",
479        .params     = "",
480        .help       = "reset the system",
481        .user_print = monitor_user_noop,
482        .mhandler.cmd_new = do_system_reset,
483    },
484
485STEXI
486@item system_reset
487@findex system_reset
488
489Reset the system.
490ETEXI
491
492    {
493        .name       = "system_powerdown",
494        .args_type  = "",
495        .params     = "",
496        .help       = "send system power down event",
497        .user_print = monitor_user_noop,
498        .mhandler.cmd_new = do_system_powerdown,
499    },
500
501STEXI
502@item system_powerdown
503@findex system_powerdown
504
505Power down the system (if supported).
506ETEXI
507
508    {
509        .name       = "sum",
510        .args_type  = "start:i,size:i",
511        .params     = "addr size",
512        .help       = "compute the checksum of a memory region",
513        .mhandler.cmd = do_sum,
514    },
515
516STEXI
517@item sum @var{addr} @var{size}
518@findex sum
519
520Compute the checksum of a memory region.
521ETEXI
522
523    {
524        .name       = "usb_add",
525        .args_type  = "devname:s",
526        .params     = "device",
527        .help       = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",
528        .mhandler.cmd = do_usb_add,
529    },
530
531STEXI
532@item usb_add @var{devname}
533@findex usb_add
534
535Add the USB device @var{devname}.  For details of available devices see
536@ref{usb_devices}
537ETEXI
538
539    {
540        .name       = "usb_del",
541        .args_type  = "devname:s",
542        .params     = "device",
543        .help       = "remove USB device 'bus.addr'",
544        .mhandler.cmd = do_usb_del,
545    },
546
547STEXI
548@item usb_del @var{devname}
549@findex usb_del
550
551Remove the USB device @var{devname} from the QEMU virtual USB
552hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
553command @code{info usb} to see the devices you can remove.
554ETEXI
555
556    {
557        .name       = "device_add",
558        .args_type  = "device:O",
559        .params     = "driver[,prop=value][,...]",
560        .help       = "add device, like -device on the command line",
561        .user_print = monitor_user_noop,
562        .mhandler.cmd_new = do_device_add,
563    },
564
565STEXI
566@item device_add @var{config}
567@findex device_add
568
569Add device.
570ETEXI
571
572    {
573        .name       = "device_del",
574        .args_type  = "id:s",
575        .params     = "device",
576        .help       = "remove device",
577        .user_print = monitor_user_noop,
578        .mhandler.cmd_new = do_device_del,
579    },
580
581STEXI
582@item device_del @var{id}
583@findex device_del
584
585Remove device @var{id}.
586ETEXI
587
588    {
589        .name       = "cpu",
590        .args_type  = "index:i",
591        .params     = "index",
592        .help       = "set the default CPU",
593        .user_print = monitor_user_noop,
594        .mhandler.cmd_new = do_cpu_set,
595    },
596
597STEXI
598@item cpu @var{index}
599@findex cpu
600Set the default CPU.
601ETEXI
602
603    {
604        .name       = "mouse_move",
605        .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
606        .params     = "dx dy [dz]",
607        .help       = "send mouse move events",
608        .mhandler.cmd = do_mouse_move,
609    },
610
611STEXI
612@item mouse_move @var{dx} @var{dy} [@var{dz}]
613@findex mouse_move
614Move the active mouse to the specified coordinates @var{dx} @var{dy}
615with optional scroll axis @var{dz}.
616ETEXI
617
618    {
619        .name       = "mouse_button",
620        .args_type  = "button_state:i",
621        .params     = "state",
622        .help       = "change mouse button state (1=L, 2=M, 4=R)",
623        .mhandler.cmd = do_mouse_button,
624    },
625
626STEXI
627@item mouse_button @var{val}
628@findex mouse_button
629Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
630ETEXI
631
632    {
633        .name       = "mouse_set",
634        .args_type  = "index:i",
635        .params     = "index",
636        .help       = "set which mouse device receives events",
637        .mhandler.cmd = do_mouse_set,
638    },
639
640STEXI
641@item mouse_set @var{index}
642@findex mouse_set
643Set which mouse device receives events at given @var{index}, index
644can be obtained with
645@example
646info mice
647@end example
648ETEXI
649
650#ifdef HAS_AUDIO
651    {
652        .name       = "wavcapture",
653        .args_type  = "path:F,freq:i?,bits:i?,nchannels:i?",
654        .params     = "path [frequency [bits [channels]]]",
655        .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
656        .mhandler.cmd = do_wav_capture,
657    },
658#endif
659STEXI
660@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
661@findex wavcapture
662Capture audio into @var{filename}. Using sample rate @var{frequency}
663bits per sample @var{bits} and number of channels @var{channels}.
664
665Defaults:
666@itemize @minus
667@item Sample rate = 44100 Hz - CD quality
668@item Bits = 16
669@item Number of channels = 2 - Stereo
670@end itemize
671ETEXI
672
673#ifdef HAS_AUDIO
674    {
675        .name       = "stopcapture",
676        .args_type  = "n:i",
677        .params     = "capture index",
678        .help       = "stop capture",
679        .mhandler.cmd = do_stop_capture,
680    },
681#endif
682STEXI
683@item stopcapture @var{index}
684@findex stopcapture
685Stop capture with a given @var{index}, index can be obtained with
686@example
687info capture
688@end example
689ETEXI
690
691    {
692        .name       = "memsave",
693        .args_type  = "val:l,size:i,filename:s",
694        .params     = "addr size file",
695        .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
696        .user_print = monitor_user_noop,
697        .mhandler.cmd_new = do_memory_save,
698    },
699
700STEXI
701@item memsave @var{addr} @var{size} @var{file}
702@findex memsave
703save to disk virtual memory dump starting at @var{addr} of size @var{size}.
704ETEXI
705
706    {
707        .name       = "pmemsave",
708        .args_type  = "val:l,size:i,filename:s",
709        .params     = "addr size file",
710        .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
711        .user_print = monitor_user_noop,
712        .mhandler.cmd_new = do_physical_memory_save,
713    },
714
715STEXI
716@item pmemsave @var{addr} @var{size} @var{file}
717@findex pmemsave
718save to disk physical memory dump starting at @var{addr} of size @var{size}.
719ETEXI
720
721    {
722        .name       = "boot_set",
723        .args_type  = "bootdevice:s",
724        .params     = "bootdevice",
725        .help       = "define new values for the boot device list",
726        .mhandler.cmd = do_boot_set,
727    },
728
729STEXI
730@item boot_set @var{bootdevicelist}
731@findex boot_set
732
733Define new values for the boot device list. Those values will override
734the values specified on the command line through the @code{-boot} option.
735
736The values that can be specified here depend on the machine type, but are
737the same that can be specified in the @code{-boot} command line option.
738ETEXI
739
740#if defined(TARGET_I386)
741    {
742        .name       = "nmi",
743        .args_type  = "",
744        .params     = "",
745        .help       = "inject an NMI on all guest's CPUs",
746        .user_print = monitor_user_noop,
747        .mhandler.cmd_new = do_inject_nmi,
748    },
749#endif
750STEXI
751@item nmi @var{cpu}
752@findex nmi
753Inject an NMI on the given CPU (x86 only).
754ETEXI
755
756    {
757        .name       = "migrate",
758        .args_type  = "detach:-d,blk:-b,inc:-i,uri:s",
759        .params     = "[-d] [-b] [-i] uri",
760        .help       = "migrate to URI (using -d to not wait for completion)"
761		      "\n\t\t\t -b for migration without shared storage with"
762		      " full copy of disk\n\t\t\t -i for migration without "
763		      "shared storage with incremental copy of disk "
764		      "(base image shared between src and destination)",
765        .user_print = monitor_user_noop,
766	.mhandler.cmd_new = do_migrate,
767    },
768
769
770STEXI
771@item migrate [-d] [-b] [-i] @var{uri}
772@findex migrate
773Migrate to @var{uri} (using -d to not wait for completion).
774	-b for migration with full copy of disk
775	-i for migration with incremental copy of disk (base image is shared)
776ETEXI
777
778    {
779        .name       = "migrate_cancel",
780        .args_type  = "",
781        .params     = "",
782        .help       = "cancel the current VM migration",
783        .user_print = monitor_user_noop,
784        .mhandler.cmd_new = do_migrate_cancel,
785    },
786
787STEXI
788@item migrate_cancel
789@findex migrate_cancel
790Cancel the current VM migration.
791ETEXI
792
793    {
794        .name       = "migrate_set_speed",
795        .args_type  = "value:o",
796        .params     = "value",
797        .help       = "set maximum speed (in bytes) for migrations. "
798	"Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
799        .user_print = monitor_user_noop,
800        .mhandler.cmd_new = do_migrate_set_speed,
801    },
802
803STEXI
804@item migrate_set_speed @var{value}
805@findex migrate_set_speed
806Set maximum speed to @var{value} (in bytes) for migrations.
807ETEXI
808
809    {
810        .name       = "migrate_set_downtime",
811        .args_type  = "value:T",
812        .params     = "value",
813        .help       = "set maximum tolerated downtime (in seconds) for migrations",
814        .user_print = monitor_user_noop,
815        .mhandler.cmd_new = do_migrate_set_downtime,
816    },
817
818STEXI
819@item migrate_set_downtime @var{second}
820@findex migrate_set_downtime
821Set maximum tolerated downtime (in seconds) for migration.
822ETEXI
823
824    {
825        .name       = "client_migrate_info",
826        .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
827        .params     = "protocol hostname port tls-port cert-subject",
828        .help       = "send migration info to spice/vnc client",
829        .user_print = monitor_user_noop,
830        .mhandler.cmd_new = client_migrate_info,
831    },
832
833STEXI
834@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
835@findex client_migrate_info
836Set the spice/vnc connection info for the migration target.  The spice/vnc
837server will ask the spice/vnc client to automatically reconnect using the
838new parameters (if specified) once the vm migration finished successfully.
839ETEXI
840
841    {
842        .name       = "snapshot_blkdev",
843        .args_type  = "device:B,snapshot-file:s?,format:s?",
844        .params     = "device [new-image-file] [format]",
845        .help       = "initiates a live snapshot\n\t\t\t"
846                      "of device. If a new image file is specified, the\n\t\t\t"
847                      "new image file will become the new root image.\n\t\t\t"
848                      "If format is specified, the snapshot file will\n\t\t\t"
849                      "be created in that format. Otherwise the\n\t\t\t"
850                      "snapshot will be internal! (currently unsupported)",
851        .mhandler.cmd_new = do_snapshot_blkdev,
852    },
853
854STEXI
855@item snapshot_blkdev
856@findex snapshot_blkdev
857Snapshot device, using snapshot file as target if provided
858ETEXI
859
860#if defined(TARGET_I386)
861    {
862        .name       = "drive_add",
863        .args_type  = "pci_addr:s,opts:s",
864        .params     = "[[<domain>:]<bus>:]<slot>\n"
865                      "[file=file][,if=type][,bus=n]\n"
866                      "[,unit=m][,media=d][index=i]\n"
867                      "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
868                      "[snapshot=on|off][,cache=on|off]",
869        .help       = "add drive to PCI storage controller",
870        .mhandler.cmd = drive_hot_add,
871    },
872#endif
873
874STEXI
875@item drive_add
876@findex drive_add
877Add drive to PCI storage controller.
878ETEXI
879
880#if defined(TARGET_I386)
881    {
882        .name       = "pci_add",
883        .args_type  = "pci_addr:s,type:s,opts:s?",
884        .params     = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...",
885        .help       = "hot-add PCI device",
886        .mhandler.cmd = pci_device_hot_add,
887    },
888#endif
889
890STEXI
891@item pci_add
892@findex pci_add
893Hot-add PCI device.
894ETEXI
895
896#if defined(TARGET_I386)
897    {
898        .name       = "pci_del",
899        .args_type  = "pci_addr:s",
900        .params     = "[[<domain>:]<bus>:]<slot>",
901        .help       = "hot remove PCI device",
902        .mhandler.cmd = do_pci_device_hot_remove,
903    },
904#endif
905
906STEXI
907@item pci_del
908@findex pci_del
909Hot remove PCI device.
910ETEXI
911
912    {
913        .name       = "pcie_aer_inject_error",
914        .args_type  = "advisory_non_fatal:-a,correctable:-c,"
915	              "id:s,error_status:s,"
916	              "header0:i?,header1:i?,header2:i?,header3:i?,"
917	              "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
918        .params     = "[-a] [-c] id "
919                      "<error_status> [<tlp header> [<tlp header prefix>]]",
920        .help       = "inject pcie aer error\n\t\t\t"
921	              " -a for advisory non fatal error\n\t\t\t"
922	              " -c for correctable error\n\t\t\t"
923                      "<id> = qdev device id\n\t\t\t"
924                      "<error_status> = error string or 32bit\n\t\t\t"
925                      "<tlb header> = 32bit x 4\n\t\t\t"
926                      "<tlb header prefix> = 32bit x 4",
927        .user_print  = pcie_aer_inject_error_print,
928        .mhandler.cmd_new = do_pcie_aer_inejct_error,
929    },
930
931STEXI
932@item pcie_aer_inject_error
933@findex pcie_aer_inject_error
934Inject PCIe AER error
935ETEXI
936
937    {
938        .name       = "host_net_add",
939        .args_type  = "device:s,opts:s?",
940        .params     = "tap|user|socket|vde|dump [options]",
941        .help       = "add host VLAN client",
942        .mhandler.cmd = net_host_device_add,
943    },
944
945STEXI
946@item host_net_add
947@findex host_net_add
948Add host VLAN client.
949ETEXI
950
951    {
952        .name       = "host_net_remove",
953        .args_type  = "vlan_id:i,device:s",
954        .params     = "vlan_id name",
955        .help       = "remove host VLAN client",
956        .mhandler.cmd = net_host_device_remove,
957    },
958
959STEXI
960@item host_net_remove
961@findex host_net_remove
962Remove host VLAN client.
963ETEXI
964
965    {
966        .name       = "netdev_add",
967        .args_type  = "netdev:O",
968        .params     = "[user|tap|socket],id=str[,prop=value][,...]",
969        .help       = "add host network device",
970        .user_print = monitor_user_noop,
971        .mhandler.cmd_new = do_netdev_add,
972    },
973
974STEXI
975@item netdev_add
976@findex netdev_add
977Add host network device.
978ETEXI
979
980    {
981        .name       = "netdev_del",
982        .args_type  = "id:s",
983        .params     = "id",
984        .help       = "remove host network device",
985        .user_print = monitor_user_noop,
986        .mhandler.cmd_new = do_netdev_del,
987    },
988
989STEXI
990@item netdev_del
991@findex netdev_del
992Remove host network device.
993ETEXI
994
995#ifdef CONFIG_SLIRP
996    {
997        .name       = "hostfwd_add",
998        .args_type  = "arg1:s,arg2:s?,arg3:s?",
999        .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1000        .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
1001        .mhandler.cmd = net_slirp_hostfwd_add,
1002    },
1003#endif
1004STEXI
1005@item hostfwd_add
1006@findex hostfwd_add
1007Redirect TCP or UDP connections from host to guest (requires -net user).
1008ETEXI
1009
1010#ifdef CONFIG_SLIRP
1011    {
1012        .name       = "hostfwd_remove",
1013        .args_type  = "arg1:s,arg2:s?,arg3:s?",
1014        .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
1015        .help       = "remove host-to-guest TCP or UDP redirection",
1016        .mhandler.cmd = net_slirp_hostfwd_remove,
1017    },
1018
1019#endif
1020STEXI
1021@item hostfwd_remove
1022@findex hostfwd_remove
1023Remove host-to-guest TCP or UDP redirection.
1024ETEXI
1025
1026    {
1027        .name       = "balloon",
1028        .args_type  = "value:M",
1029        .params     = "target",
1030        .help       = "request VM to change its memory allocation (in MB)",
1031        .user_print = monitor_user_noop,
1032        .mhandler.cmd_async = do_balloon,
1033        .flags      = MONITOR_CMD_ASYNC,
1034    },
1035
1036STEXI
1037@item balloon @var{value}
1038@findex balloon
1039Request VM to change its memory allocation to @var{value} (in MB).
1040ETEXI
1041
1042    {
1043        .name       = "set_link",
1044        .args_type  = "name:s,up:b",
1045        .params     = "name on|off",
1046        .help       = "change the link status of a network adapter",
1047        .user_print = monitor_user_noop,
1048        .mhandler.cmd_new = do_set_link,
1049    },
1050
1051STEXI
1052@item set_link @var{name} [on|off]
1053@findex set_link
1054Switch link @var{name} on (i.e. up) or off (i.e. down).
1055ETEXI
1056
1057    {
1058        .name       = "watchdog_action",
1059        .args_type  = "action:s",
1060        .params     = "[reset|shutdown|poweroff|pause|debug|none]",
1061        .help       = "change watchdog action",
1062        .mhandler.cmd = do_watchdog_action,
1063    },
1064
1065STEXI
1066@item watchdog_action
1067@findex watchdog_action
1068Change watchdog action.
1069ETEXI
1070
1071    {
1072        .name       = "acl_show",
1073        .args_type  = "aclname:s",
1074        .params     = "aclname",
1075        .help       = "list rules in the access control list",
1076        .mhandler.cmd = do_acl_show,
1077    },
1078
1079STEXI
1080@item acl_show @var{aclname}
1081@findex acl_show
1082List all the matching rules in the access control list, and the default
1083policy. There are currently two named access control lists,
1084@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1085certificate distinguished name, and SASL username respectively.
1086ETEXI
1087
1088    {
1089        .name       = "acl_policy",
1090        .args_type  = "aclname:s,policy:s",
1091        .params     = "aclname allow|deny",
1092        .help       = "set default access control list policy",
1093        .mhandler.cmd = do_acl_policy,
1094    },
1095
1096STEXI
1097@item acl_policy @var{aclname} @code{allow|deny}
1098@findex acl_policy
1099Set the default access control list policy, used in the event that
1100none of the explicit rules match. The default policy at startup is
1101always @code{deny}.
1102ETEXI
1103
1104    {
1105        .name       = "acl_add",
1106        .args_type  = "aclname:s,match:s,policy:s,index:i?",
1107        .params     = "aclname match allow|deny [index]",
1108        .help       = "add a match rule to the access control list",
1109        .mhandler.cmd = do_acl_add,
1110    },
1111
1112STEXI
1113@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1114@findex acl_add
1115Add a match rule to the access control list, allowing or denying access.
1116The match will normally be an exact username or x509 distinguished name,
1117but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1118allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1119normally be appended to the end of the ACL, but can be inserted
1120earlier in the list if the optional @var{index} parameter is supplied.
1121ETEXI
1122
1123    {
1124        .name       = "acl_remove",
1125        .args_type  = "aclname:s,match:s",
1126        .params     = "aclname match",
1127        .help       = "remove a match rule from the access control list",
1128        .mhandler.cmd = do_acl_remove,
1129    },
1130
1131STEXI
1132@item acl_remove @var{aclname} @var{match}
1133@findex acl_remove
1134Remove the specified match rule from the access control list.
1135ETEXI
1136
1137    {
1138        .name       = "acl_reset",
1139        .args_type  = "aclname:s",
1140        .params     = "aclname",
1141        .help       = "reset the access control list",
1142        .mhandler.cmd = do_acl_reset,
1143    },
1144
1145STEXI
1146@item acl_reset @var{aclname}
1147@findex acl_reset
1148Remove all matches from the access control list, and set the default
1149policy back to @code{deny}.
1150ETEXI
1151
1152#if defined(TARGET_I386)
1153
1154    {
1155        .name       = "mce",
1156        .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1157        .params     = "[-b] cpu bank status mcgstatus addr misc",
1158        .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1159        .mhandler.cmd = do_inject_mce,
1160    },
1161
1162#endif
1163STEXI
1164@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1165@findex mce (x86)
1166Inject an MCE on the given CPU (x86 only).
1167ETEXI
1168
1169    {
1170        .name       = "getfd",
1171        .args_type  = "fdname:s",
1172        .params     = "getfd name",
1173        .help       = "receive a file descriptor via SCM rights and assign it a name",
1174        .user_print = monitor_user_noop,
1175        .mhandler.cmd_new = do_getfd,
1176    },
1177
1178STEXI
1179@item getfd @var{fdname}
1180@findex getfd
1181If a file descriptor is passed alongside this command using the SCM_RIGHTS
1182mechanism on unix sockets, it is stored using the name @var{fdname} for
1183later use by other monitor commands.
1184ETEXI
1185
1186    {
1187        .name       = "closefd",
1188        .args_type  = "fdname:s",
1189        .params     = "closefd name",
1190        .help       = "close a file descriptor previously passed via SCM rights",
1191        .user_print = monitor_user_noop,
1192        .mhandler.cmd_new = do_closefd,
1193    },
1194
1195STEXI
1196@item closefd @var{fdname}
1197@findex closefd
1198Close the file descriptor previously assigned to @var{fdname} using the
1199@code{getfd} command. This is only needed if the file descriptor was never
1200used by another monitor command.
1201ETEXI
1202
1203    {
1204        .name       = "block_passwd",
1205        .args_type  = "device:B,password:s",
1206        .params     = "block_passwd device password",
1207        .help       = "set the password of encrypted block devices",
1208        .user_print = monitor_user_noop,
1209        .mhandler.cmd_new = do_block_set_passwd,
1210    },
1211
1212STEXI
1213@item block_passwd @var{device} @var{password}
1214@findex block_passwd
1215Set the encrypted device @var{device} password to @var{password}
1216ETEXI
1217
1218    {
1219        .name       = "set_password",
1220        .args_type  = "protocol:s,password:s,connected:s?",
1221        .params     = "protocol password action-if-connected",
1222        .help       = "set spice/vnc password",
1223        .user_print = monitor_user_noop,
1224        .mhandler.cmd_new = set_password,
1225    },
1226
1227STEXI
1228@item set_password [ vnc | spice ] password [ action-if-connected ]
1229@findex set_password
1230
1231Change spice/vnc password.  Use zero to make the password stay valid
1232forever.  @var{action-if-connected} specifies what should happen in
1233case a connection is established: @var{fail} makes the password change
1234fail.  @var{disconnect} changes the password and disconnects the
1235client.  @var{keep} changes the password and keeps the connection up.
1236@var{keep} is the default.
1237ETEXI
1238
1239    {
1240        .name       = "expire_password",
1241        .args_type  = "protocol:s,time:s",
1242        .params     = "protocol time",
1243        .help       = "set spice/vnc password expire-time",
1244        .user_print = monitor_user_noop,
1245        .mhandler.cmd_new = expire_password,
1246    },
1247
1248STEXI
1249@item expire_password [ vnc | spice ] expire-time
1250@findex expire_password
1251
1252Specify when a password for spice/vnc becomes
1253invalid. @var{expire-time} accepts:
1254
1255@table @var
1256@item now
1257Invalidate password instantly.
1258
1259@item never
1260Password stays valid forever.
1261
1262@item +nsec
1263Password stays valid for @var{nsec} seconds starting now.
1264
1265@item nsec
1266Password is invalidated at the given time.  @var{nsec} are the seconds
1267passed since 1970, i.e. unix epoch.
1268
1269@end table
1270ETEXI
1271
1272    {
1273        .name       = "info",
1274        .args_type  = "item:s?",
1275        .params     = "[subcommand]",
1276        .help       = "show various information about the system state",
1277        .mhandler.cmd = do_info,
1278    },
1279
1280STEXI
1281@item info @var{subcommand}
1282@findex info
1283Show various information about the system state.
1284
1285@table @option
1286@item info version
1287show the version of QEMU
1288@item info network
1289show the various VLANs and the associated devices
1290@item info chardev
1291show the character devices
1292@item info block
1293show the block devices
1294@item info blockstats
1295show block device statistics
1296@item info registers
1297show the cpu registers
1298@item info cpus
1299show infos for each CPU
1300@item info history
1301show the command line history
1302@item info irq
1303show the interrupts statistics (if available)
1304@item info pic
1305show i8259 (PIC) state
1306@item info pci
1307show emulated PCI device info
1308@item info tlb
1309show virtual to physical memory mappings (i386, SH4 and SPARC only)
1310@item info mem
1311show the active virtual memory mappings (i386 only)
1312@item info jit
1313show dynamic compiler info
1314@item info numa
1315show NUMA information
1316@item info kvm
1317show KVM information
1318@item info usb
1319show USB devices plugged on the virtual USB hub
1320@item info usbhost
1321show all USB host devices
1322@item info profile
1323show profiling information
1324@item info capture
1325show information about active capturing
1326@item info snapshots
1327show list of VM snapshots
1328@item info status
1329show the current VM status (running|paused)
1330@item info pcmcia
1331show guest PCMCIA status
1332@item info mice
1333show which guest mouse is receiving events
1334@item info vnc
1335show the vnc server status
1336@item info name
1337show the current VM name
1338@item info uuid
1339show the current VM UUID
1340@item info cpustats
1341show CPU statistics
1342@item info usernet
1343show user network stack connection states
1344@item info migrate
1345show migration status
1346@item info balloon
1347show balloon information
1348@item info qtree
1349show device tree
1350@item info qdm
1351show qdev device model list
1352@item info roms
1353show roms
1354@end table
1355ETEXI
1356
1357#ifdef CONFIG_TRACE_SIMPLE
1358STEXI
1359@item info trace
1360show contents of trace buffer
1361ETEXI
1362#endif
1363
1364STEXI
1365@item info trace-events
1366show available trace events and their state
1367ETEXI
1368
1369STEXI
1370@end table
1371ETEXI
1372