tests: Add a tester for HMP commands
[qemu.git] / hmp-commands.hx
1 HXCOMM Use DEFHEADING() to define headings in both help text and texi
2 HXCOMM Text between STEXI and ETEXI are copied to texi version and
3 HXCOMM discarded from C version
4 HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
5 HXCOMM monitor commands
6 HXCOMM HXCOMM can be used for comments, discarded from both texi and C
7
8 STEXI
9 @table @option
10 ETEXI
11
12     {
13         .name       = "help|?",
14         .args_type  = "name:S?",
15         .params     = "[cmd]",
16         .help       = "show the help",
17         .cmd        = do_help_cmd,
18     },
19
20 STEXI
21 @item help or ? [@var{cmd}]
22 @findex help
23 Show the help for all commands or just for command @var{cmd}.
24 ETEXI
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         .cmd        = hmp_commit,
32     },
33
34 STEXI
35 @item commit
36 @findex commit
37 Commit changes to the disk images (if -snapshot is used) or backing files.
38 If the backing file is smaller than the snapshot, then the backing file will be
39 resized to be the same size as the snapshot.  If the snapshot is smaller than
40 the backing file, the backing file will not be truncated.  If you want the
41 backing file to match the size of the smaller snapshot, you can safely truncate
42 it yourself once the commit operation successfully completes.
43 ETEXI
44
45     {
46         .name       = "q|quit",
47         .args_type  = "",
48         .params     = "",
49         .help       = "quit the emulator",
50         .cmd        = hmp_quit,
51     },
52
53 STEXI
54 @item q or quit
55 @findex quit
56 Quit the emulator.
57 ETEXI
58
59     {
60         .name       = "block_resize",
61         .args_type  = "device:B,size:o",
62         .params     = "device size",
63         .help       = "resize a block image",
64         .cmd        = hmp_block_resize,
65     },
66
67 STEXI
68 @item block_resize
69 @findex block_resize
70 Resize a block image while a guest is running.  Usually requires guest
71 action to see the updated size.  Resize to a lower size is supported,
72 but should be used with extreme caution.  Note that this command only
73 resizes image files, it can not resize block devices like LVM volumes.
74 ETEXI
75
76     {
77         .name       = "block_stream",
78         .args_type  = "device:B,speed:o?,base:s?",
79         .params     = "device [speed [base]]",
80         .help       = "copy data from a backing file into a block device",
81         .cmd        = hmp_block_stream,
82     },
83
84 STEXI
85 @item block_stream
86 @findex block_stream
87 Copy data from a backing file into a block device.
88 ETEXI
89
90     {
91         .name       = "block_job_set_speed",
92         .args_type  = "device:B,speed:o",
93         .params     = "device speed",
94         .help       = "set maximum speed for a background block operation",
95         .cmd        = hmp_block_job_set_speed,
96     },
97
98 STEXI
99 @item block_job_set_speed
100 @findex block_job_set_speed
101 Set maximum speed for a background block operation.
102 ETEXI
103
104     {
105         .name       = "block_job_cancel",
106         .args_type  = "force:-f,device:B",
107         .params     = "[-f] device",
108         .help       = "stop an active background block operation (use -f"
109                       "\n\t\t\t if the operation is currently paused)",
110         .cmd        = hmp_block_job_cancel,
111     },
112
113 STEXI
114 @item block_job_cancel
115 @findex block_job_cancel
116 Stop an active background block operation (streaming, mirroring).
117 ETEXI
118
119     {
120         .name       = "block_job_complete",
121         .args_type  = "device:B",
122         .params     = "device",
123         .help       = "stop an active background block operation",
124         .cmd        = hmp_block_job_complete,
125     },
126
127 STEXI
128 @item block_job_complete
129 @findex block_job_complete
130 Manually trigger completion of an active background block operation.
131 For mirroring, this will switch the device to the destination path.
132 ETEXI
133
134     {
135         .name       = "block_job_pause",
136         .args_type  = "device:B",
137         .params     = "device",
138         .help       = "pause an active background block operation",
139         .cmd        = hmp_block_job_pause,
140     },
141
142 STEXI
143 @item block_job_pause
144 @findex block_job_pause
145 Pause an active block streaming operation.
146 ETEXI
147
148     {
149         .name       = "block_job_resume",
150         .args_type  = "device:B",
151         .params     = "device",
152         .help       = "resume a paused background block operation",
153         .cmd        = hmp_block_job_resume,
154     },
155
156 STEXI
157 @item block_job_resume
158 @findex block_job_resume
159 Resume a paused block streaming operation.
160 ETEXI
161
162     {
163         .name       = "eject",
164         .args_type  = "force:-f,device:B",
165         .params     = "[-f] device",
166         .help       = "eject a removable medium (use -f to force it)",
167         .cmd        = hmp_eject,
168     },
169
170 STEXI
171 @item eject [-f] @var{device}
172 @findex eject
173 Eject a removable medium (use -f to force it).
174 ETEXI
175
176     {
177         .name       = "drive_del",
178         .args_type  = "id:B",
179         .params     = "device",
180         .help       = "remove host block device",
181         .cmd        = hmp_drive_del,
182     },
183
184 STEXI
185 @item drive_del @var{device}
186 @findex drive_del
187 Remove host block device.  The result is that guest generated IO is no longer
188 submitted against the host device underlying the disk.  Once a drive has
189 been deleted, the QEMU Block layer returns -EIO which results in IO
190 errors in the guest for applications that are reading/writing to the device.
191 These errors are always reported to the guest, regardless of the drive's error
192 actions (drive options rerror, werror).
193 ETEXI
194
195     {
196         .name       = "change",
197         .args_type  = "device:B,target:F,arg:s?,read-only-mode:s?",
198         .params     = "device filename [format [read-only-mode]]",
199         .help       = "change a removable medium, optional format",
200         .cmd        = hmp_change,
201     },
202
203 STEXI
204 @item change @var{device} @var{setting}
205 @findex change
206 Change the configuration of a device.
207
208 @table @option
209 @item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]]
210 Change the medium for a removable disk device to point to @var{filename}. eg
211
212 @example
213 (qemu) change ide1-cd0 /path/to/some.iso
214 @end example
215
216 @var{format} is optional.
217
218 @var{read-only-mode} may be used to change the read-only status of the device.
219 It accepts the following values:
220
221 @table @var
222 @item retain
223 Retains the current status; this is the default.
224
225 @item read-only
226 Makes the device read-only.
227
228 @item read-write
229 Makes the device writable.
230 @end table
231
232 @item change vnc @var{display},@var{options}
233 Change the configuration of the VNC server. The valid syntax for @var{display}
234 and @var{options} are described at @ref{sec_invocation}. eg
235
236 @example
237 (qemu) change vnc localhost:1
238 @end example
239
240 @item change vnc password [@var{password}]
241
242 Change the password associated with the VNC server. If the new password is not
243 supplied, the monitor will prompt for it to be entered. VNC passwords are only
244 significant up to 8 letters. eg
245
246 @example
247 (qemu) change vnc password
248 Password: ********
249 @end example
250
251 @end table
252 ETEXI
253
254     {
255         .name       = "screendump",
256         .args_type  = "filename:F",
257         .params     = "filename",
258         .help       = "save screen into PPM image 'filename'",
259         .cmd        = hmp_screendump,
260     },
261
262 STEXI
263 @item screendump @var{filename}
264 @findex screendump
265 Save screen into PPM image @var{filename}.
266 ETEXI
267
268     {
269         .name       = "logfile",
270         .args_type  = "filename:F",
271         .params     = "filename",
272         .help       = "output logs to 'filename'",
273         .cmd        = hmp_logfile,
274     },
275
276 STEXI
277 @item logfile @var{filename}
278 @findex logfile
279 Output logs to @var{filename}.
280 ETEXI
281
282     {
283         .name       = "trace-event",
284         .args_type  = "name:s,option:b,vcpu:i?",
285         .params     = "name on|off [vcpu]",
286         .help       = "changes status of a specific trace event "
287                       "(vcpu: vCPU to set, default is all)",
288         .cmd = hmp_trace_event,
289         .command_completion = trace_event_completion,
290     },
291
292 STEXI
293 @item trace-event
294 @findex trace-event
295 changes status of a trace event
296 ETEXI
297
298 #if defined(CONFIG_TRACE_SIMPLE)
299     {
300         .name       = "trace-file",
301         .args_type  = "op:s?,arg:F?",
302         .params     = "on|off|flush|set [arg]",
303         .help       = "open, close, or flush trace file, or set a new file name",
304         .cmd        = hmp_trace_file,
305     },
306
307 STEXI
308 @item trace-file on|off|flush
309 @findex trace-file
310 Open, close, or flush the trace file.  If no argument is given, the status of the trace file is displayed.
311 ETEXI
312 #endif
313
314     {
315         .name       = "log",
316         .args_type  = "items:s",
317         .params     = "item1[,...]",
318         .help       = "activate logging of the specified items",
319         .cmd        = hmp_log,
320     },
321
322 STEXI
323 @item log @var{item1}[,...]
324 @findex log
325 Activate logging of the specified items.
326 ETEXI
327
328     {
329         .name       = "savevm",
330         .args_type  = "name:s?",
331         .params     = "[tag|id]",
332         .help       = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
333         .cmd        = hmp_savevm,
334     },
335
336 STEXI
337 @item savevm [@var{tag}|@var{id}]
338 @findex savevm
339 Create a snapshot of the whole virtual machine. If @var{tag} is
340 provided, it is used as human readable identifier. If there is already
341 a snapshot with the same tag or ID, it is replaced. More info at
342 @ref{vm_snapshots}.
343 ETEXI
344
345     {
346         .name       = "loadvm",
347         .args_type  = "name:s",
348         .params     = "tag|id",
349         .help       = "restore a VM snapshot from its tag or id",
350         .cmd        = hmp_loadvm,
351         .command_completion = loadvm_completion,
352     },
353
354 STEXI
355 @item loadvm @var{tag}|@var{id}
356 @findex loadvm
357 Set the whole virtual machine to the snapshot identified by the tag
358 @var{tag} or the unique snapshot ID @var{id}.
359 ETEXI
360
361     {
362         .name       = "delvm",
363         .args_type  = "name:s",
364         .params     = "tag|id",
365         .help       = "delete a VM snapshot from its tag or id",
366         .cmd        = hmp_delvm,
367         .command_completion = delvm_completion,
368     },
369
370 STEXI
371 @item delvm @var{tag}|@var{id}
372 @findex delvm
373 Delete the snapshot identified by @var{tag} or @var{id}.
374 ETEXI
375
376     {
377         .name       = "singlestep",
378         .args_type  = "option:s?",
379         .params     = "[on|off]",
380         .help       = "run emulation in singlestep mode or switch to normal mode",
381         .cmd        = hmp_singlestep,
382     },
383
384 STEXI
385 @item singlestep [off]
386 @findex singlestep
387 Run the emulation in single step mode.
388 If called with option off, the emulation returns to normal mode.
389 ETEXI
390
391     {
392         .name       = "stop",
393         .args_type  = "",
394         .params     = "",
395         .help       = "stop emulation",
396         .cmd        = hmp_stop,
397     },
398
399 STEXI
400 @item stop
401 @findex stop
402 Stop emulation.
403 ETEXI
404
405     {
406         .name       = "c|cont",
407         .args_type  = "",
408         .params     = "",
409         .help       = "resume emulation",
410         .cmd        = hmp_cont,
411     },
412
413 STEXI
414 @item c or cont
415 @findex cont
416 Resume emulation.
417 ETEXI
418
419     {
420         .name       = "system_wakeup",
421         .args_type  = "",
422         .params     = "",
423         .help       = "wakeup guest from suspend",
424         .cmd        = hmp_system_wakeup,
425     },
426
427 STEXI
428 @item system_wakeup
429 @findex system_wakeup
430 Wakeup guest from suspend.
431 ETEXI
432
433     {
434         .name       = "gdbserver",
435         .args_type  = "device:s?",
436         .params     = "[device]",
437         .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
438         .cmd        = hmp_gdbserver,
439     },
440
441 STEXI
442 @item gdbserver [@var{port}]
443 @findex gdbserver
444 Start gdbserver session (default @var{port}=1234)
445 ETEXI
446
447     {
448         .name       = "x",
449         .args_type  = "fmt:/,addr:l",
450         .params     = "/fmt addr",
451         .help       = "virtual memory dump starting at 'addr'",
452         .cmd        = hmp_memory_dump,
453     },
454
455 STEXI
456 @item x/fmt @var{addr}
457 @findex x
458 Virtual memory dump starting at @var{addr}.
459 ETEXI
460
461     {
462         .name       = "xp",
463         .args_type  = "fmt:/,addr:l",
464         .params     = "/fmt addr",
465         .help       = "physical memory dump starting at 'addr'",
466         .cmd        = hmp_physical_memory_dump,
467     },
468
469 STEXI
470 @item xp /@var{fmt} @var{addr}
471 @findex xp
472 Physical memory dump starting at @var{addr}.
473
474 @var{fmt} is a format which tells the command how to format the
475 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
476
477 @table @var
478 @item count
479 is the number of items to be dumped.
480
481 @item format
482 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
483 c (char) or i (asm instruction).
484
485 @item size
486 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
487 @code{h} or @code{w} can be specified with the @code{i} format to
488 respectively select 16 or 32 bit code instruction size.
489
490 @end table
491
492 Examples:
493 @itemize
494 @item
495 Dump 10 instructions at the current instruction pointer:
496 @example
497 (qemu) x/10i $eip
498 0x90107063:  ret
499 0x90107064:  sti
500 0x90107065:  lea    0x0(%esi,1),%esi
501 0x90107069:  lea    0x0(%edi,1),%edi
502 0x90107070:  ret
503 0x90107071:  jmp    0x90107080
504 0x90107073:  nop
505 0x90107074:  nop
506 0x90107075:  nop
507 0x90107076:  nop
508 @end example
509
510 @item
511 Dump 80 16 bit values at the start of the video memory.
512 @smallexample
513 (qemu) xp/80hx 0xb8000
514 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
515 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
516 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
517 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
518 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
519 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
520 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
521 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
522 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
523 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
524 @end smallexample
525 @end itemize
526 ETEXI
527
528     {
529         .name       = "gpa2hva",
530         .args_type  = "addr:l",
531         .params     = "addr",
532         .help       = "print the host virtual address corresponding to a guest physical address",
533         .cmd        = hmp_gpa2hva,
534     },
535
536 STEXI
537 @item gpa2hva @var{addr}
538 @findex gpa2hva
539 Print the host virtual address at which the guest's physical address @var{addr}
540 is mapped.
541 ETEXI
542
543 #ifdef CONFIG_LINUX
544     {
545         .name       = "gpa2hpa",
546         .args_type  = "addr:l",
547         .params     = "addr",
548         .help       = "print the host physical address corresponding to a guest physical address",
549         .cmd        = hmp_gpa2hpa,
550     },
551 #endif
552
553 STEXI
554 @item gpa2hpa @var{addr}
555 @findex gpa2hpa
556 Print the host physical address at which the guest's physical address @var{addr}
557 is mapped.
558 ETEXI
559
560     {
561         .name       = "p|print",
562         .args_type  = "fmt:/,val:l",
563         .params     = "/fmt expr",
564         .help       = "print expression value (use $reg for CPU register access)",
565         .cmd        = do_print,
566     },
567
568 STEXI
569 @item p or print/@var{fmt} @var{expr}
570 @findex print
571 Print expression value. Only the @var{format} part of @var{fmt} is
572 used.
573 ETEXI
574
575     {
576         .name       = "i",
577         .args_type  = "fmt:/,addr:i,index:i.",
578         .params     = "/fmt addr",
579         .help       = "I/O port read",
580         .cmd        = hmp_ioport_read,
581     },
582
583 STEXI
584 @item i/@var{fmt} @var{addr} [.@var{index}]
585 @findex i
586 Read I/O port.
587 ETEXI
588
589     {
590         .name       = "o",
591         .args_type  = "fmt:/,addr:i,val:i",
592         .params     = "/fmt addr value",
593         .help       = "I/O port write",
594         .cmd        = hmp_ioport_write,
595     },
596
597 STEXI
598 @item o/@var{fmt} @var{addr} @var{val}
599 @findex o
600 Write to I/O port.
601 ETEXI
602
603     {
604         .name       = "sendkey",
605         .args_type  = "keys:s,hold-time:i?",
606         .params     = "keys [hold_ms]",
607         .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
608         .cmd        = hmp_sendkey,
609         .command_completion = sendkey_completion,
610     },
611
612 STEXI
613 @item sendkey @var{keys}
614 @findex sendkey
615 Send @var{keys} to the guest. @var{keys} could be the name of the
616 key or the raw value in hexadecimal format. Use @code{-} to press
617 several keys simultaneously. Example:
618 @example
619 sendkey ctrl-alt-f1
620 @end example
621
622 This command is useful to send keys that your graphical user interface
623 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
624 ETEXI
625
626     {
627         .name       = "system_reset",
628         .args_type  = "",
629         .params     = "",
630         .help       = "reset the system",
631         .cmd        = hmp_system_reset,
632     },
633
634 STEXI
635 @item system_reset
636 @findex system_reset
637 Reset the system.
638 ETEXI
639
640     {
641         .name       = "system_powerdown",
642         .args_type  = "",
643         .params     = "",
644         .help       = "send system power down event",
645         .cmd        = hmp_system_powerdown,
646     },
647
648 STEXI
649 @item system_powerdown
650 @findex system_powerdown
651 Power down the system (if supported).
652 ETEXI
653
654     {
655         .name       = "sum",
656         .args_type  = "start:i,size:i",
657         .params     = "addr size",
658         .help       = "compute the checksum of a memory region",
659         .cmd        = hmp_sum,
660     },
661
662 STEXI
663 @item sum @var{addr} @var{size}
664 @findex sum
665 Compute the checksum of a memory region.
666 ETEXI
667
668     {
669         .name       = "usb_add",
670         .args_type  = "devname:s",
671         .params     = "device",
672         .help       = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",
673         .cmd        = hmp_usb_add,
674     },
675
676 STEXI
677 @item usb_add @var{devname}
678 @findex usb_add
679 Add the USB device @var{devname}.  For details of available devices see
680 @ref{usb_devices}
681 ETEXI
682
683     {
684         .name       = "usb_del",
685         .args_type  = "devname:s",
686         .params     = "device",
687         .help       = "remove USB device 'bus.addr'",
688         .cmd        = hmp_usb_del,
689     },
690
691 STEXI
692 @item usb_del @var{devname}
693 @findex usb_del
694 Remove the USB device @var{devname} from the QEMU virtual USB
695 hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
696 command @code{info usb} to see the devices you can remove.
697 ETEXI
698
699     {
700         .name       = "device_add",
701         .args_type  = "device:O",
702         .params     = "driver[,prop=value][,...]",
703         .help       = "add device, like -device on the command line",
704         .cmd        = hmp_device_add,
705         .command_completion = device_add_completion,
706     },
707
708 STEXI
709 @item device_add @var{config}
710 @findex device_add
711 Add device.
712 ETEXI
713
714     {
715         .name       = "device_del",
716         .args_type  = "id:s",
717         .params     = "device",
718         .help       = "remove device",
719         .cmd        = hmp_device_del,
720         .command_completion = device_del_completion,
721     },
722
723 STEXI
724 @item device_del @var{id}
725 @findex device_del
726 Remove device @var{id}. @var{id} may be a short ID
727 or a QOM object path.
728 ETEXI
729
730     {
731         .name       = "cpu",
732         .args_type  = "index:i",
733         .params     = "index",
734         .help       = "set the default CPU",
735         .cmd        = hmp_cpu,
736     },
737
738 STEXI
739 @item cpu @var{index}
740 @findex cpu
741 Set the default CPU.
742 ETEXI
743
744     {
745         .name       = "mouse_move",
746         .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
747         .params     = "dx dy [dz]",
748         .help       = "send mouse move events",
749         .cmd        = hmp_mouse_move,
750     },
751
752 STEXI
753 @item mouse_move @var{dx} @var{dy} [@var{dz}]
754 @findex mouse_move
755 Move the active mouse to the specified coordinates @var{dx} @var{dy}
756 with optional scroll axis @var{dz}.
757 ETEXI
758
759     {
760         .name       = "mouse_button",
761         .args_type  = "button_state:i",
762         .params     = "state",
763         .help       = "change mouse button state (1=L, 2=M, 4=R)",
764         .cmd        = hmp_mouse_button,
765     },
766
767 STEXI
768 @item mouse_button @var{val}
769 @findex mouse_button
770 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
771 ETEXI
772
773     {
774         .name       = "mouse_set",
775         .args_type  = "index:i",
776         .params     = "index",
777         .help       = "set which mouse device receives events",
778         .cmd        = hmp_mouse_set,
779     },
780
781 STEXI
782 @item mouse_set @var{index}
783 @findex mouse_set
784 Set which mouse device receives events at given @var{index}, index
785 can be obtained with
786 @example
787 info mice
788 @end example
789 ETEXI
790
791     {
792         .name       = "wavcapture",
793         .args_type  = "path:F,freq:i?,bits:i?,nchannels:i?",
794         .params     = "path [frequency [bits [channels]]]",
795         .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
796         .cmd        = hmp_wavcapture,
797     },
798 STEXI
799 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
800 @findex wavcapture
801 Capture audio into @var{filename}. Using sample rate @var{frequency}
802 bits per sample @var{bits} and number of channels @var{channels}.
803
804 Defaults:
805 @itemize @minus
806 @item Sample rate = 44100 Hz - CD quality
807 @item Bits = 16
808 @item Number of channels = 2 - Stereo
809 @end itemize
810 ETEXI
811
812     {
813         .name       = "stopcapture",
814         .args_type  = "n:i",
815         .params     = "capture index",
816         .help       = "stop capture",
817         .cmd        = hmp_stopcapture,
818     },
819 STEXI
820 @item stopcapture @var{index}
821 @findex stopcapture
822 Stop capture with a given @var{index}, index can be obtained with
823 @example
824 info capture
825 @end example
826 ETEXI
827
828     {
829         .name       = "memsave",
830         .args_type  = "val:l,size:i,filename:s",
831         .params     = "addr size file",
832         .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
833         .cmd        = hmp_memsave,
834     },
835
836 STEXI
837 @item memsave @var{addr} @var{size} @var{file}
838 @findex memsave
839 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
840 ETEXI
841
842     {
843         .name       = "pmemsave",
844         .args_type  = "val:l,size:i,filename:s",
845         .params     = "addr size file",
846         .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
847         .cmd        = hmp_pmemsave,
848     },
849
850 STEXI
851 @item pmemsave @var{addr} @var{size} @var{file}
852 @findex pmemsave
853 save to disk physical memory dump starting at @var{addr} of size @var{size}.
854 ETEXI
855
856     {
857         .name       = "boot_set",
858         .args_type  = "bootdevice:s",
859         .params     = "bootdevice",
860         .help       = "define new values for the boot device list",
861         .cmd        = hmp_boot_set,
862     },
863
864 STEXI
865 @item boot_set @var{bootdevicelist}
866 @findex boot_set
867 Define new values for the boot device list. Those values will override
868 the values specified on the command line through the @code{-boot} option.
869
870 The values that can be specified here depend on the machine type, but are
871 the same that can be specified in the @code{-boot} command line option.
872 ETEXI
873
874     {
875         .name       = "nmi",
876         .args_type  = "",
877         .params     = "",
878         .help       = "inject an NMI",
879         .cmd        = hmp_nmi,
880     },
881 STEXI
882 @item nmi @var{cpu}
883 @findex nmi
884 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
885
886 ETEXI
887
888     {
889         .name       = "ringbuf_write",
890         .args_type  = "device:s,data:s",
891         .params     = "device data",
892         .help       = "Write to a ring buffer character device",
893         .cmd        = hmp_ringbuf_write,
894         .command_completion = ringbuf_write_completion,
895     },
896
897 STEXI
898 @item ringbuf_write @var{device} @var{data}
899 @findex ringbuf_write
900 Write @var{data} to ring buffer character device @var{device}.
901 @var{data} must be a UTF-8 string.
902
903 ETEXI
904
905     {
906         .name       = "ringbuf_read",
907         .args_type  = "device:s,size:i",
908         .params     = "device size",
909         .help       = "Read from a ring buffer character device",
910         .cmd        = hmp_ringbuf_read,
911         .command_completion = ringbuf_write_completion,
912     },
913
914 STEXI
915 @item ringbuf_read @var{device}
916 @findex ringbuf_read
917 Read and print up to @var{size} bytes from ring buffer character
918 device @var{device}.
919 Certain non-printable characters are printed \uXXXX, where XXXX is the
920 character code in hexadecimal.  Character \ is printed \\.
921 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
922 NUL characters, after the ring buffer lost data, and when reading
923 stops because the size limit is reached.
924
925 ETEXI
926
927     {
928         .name       = "migrate",
929         .args_type  = "detach:-d,blk:-b,inc:-i,uri:s",
930         .params     = "[-d] [-b] [-i] uri",
931         .help       = "migrate to URI (using -d to not wait for completion)"
932                       "\n\t\t\t -b for migration without shared storage with"
933                       " full copy of disk\n\t\t\t -i for migration without "
934                       "shared storage with incremental copy of disk "
935                       "(base image shared between src and destination)",
936         .cmd        = hmp_migrate,
937     },
938
939
940 STEXI
941 @item migrate [-d] [-b] [-i] @var{uri}
942 @findex migrate
943 Migrate to @var{uri} (using -d to not wait for completion).
944         -b for migration with full copy of disk
945         -i for migration with incremental copy of disk (base image is shared)
946 ETEXI
947
948     {
949         .name       = "migrate_cancel",
950         .args_type  = "",
951         .params     = "",
952         .help       = "cancel the current VM migration",
953         .cmd        = hmp_migrate_cancel,
954     },
955
956 STEXI
957 @item migrate_cancel
958 @findex migrate_cancel
959 Cancel the current VM migration.
960
961 ETEXI
962
963     {
964         .name       = "migrate_incoming",
965         .args_type  = "uri:s",
966         .params     = "uri",
967         .help       = "Continue an incoming migration from an -incoming defer",
968         .cmd        = hmp_migrate_incoming,
969     },
970
971 STEXI
972 @item migrate_incoming @var{uri}
973 @findex migrate_incoming
974 Continue an incoming migration using the @var{uri} (that has the same syntax
975 as the -incoming option).
976
977 ETEXI
978
979     {
980         .name       = "migrate_set_cache_size",
981         .args_type  = "value:o",
982         .params     = "value",
983         .help       = "set cache size (in bytes) for XBZRLE migrations,"
984                       "the cache size will be rounded down to the nearest "
985                       "power of 2.\n"
986                       "The cache size affects the number of cache misses."
987                       "In case of a high cache miss ratio you need to increase"
988                       " the cache size",
989         .cmd        = hmp_migrate_set_cache_size,
990     },
991
992 STEXI
993 @item migrate_set_cache_size @var{value}
994 @findex migrate_set_cache_size
995 Set cache size to @var{value} (in bytes) for xbzrle migrations.
996 ETEXI
997
998     {
999         .name       = "migrate_set_speed",
1000         .args_type  = "value:o",
1001         .params     = "value",
1002         .help       = "set maximum speed (in bytes) for migrations. "
1003         "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
1004         .cmd        = hmp_migrate_set_speed,
1005     },
1006
1007 STEXI
1008 @item migrate_set_speed @var{value}
1009 @findex migrate_set_speed
1010 Set maximum speed to @var{value} (in bytes) for migrations.
1011 ETEXI
1012
1013     {
1014         .name       = "migrate_set_downtime",
1015         .args_type  = "value:T",
1016         .params     = "value",
1017         .help       = "set maximum tolerated downtime (in seconds) for migrations",
1018         .cmd        = hmp_migrate_set_downtime,
1019     },
1020
1021 STEXI
1022 @item migrate_set_downtime @var{second}
1023 @findex migrate_set_downtime
1024 Set maximum tolerated downtime (in seconds) for migration.
1025 ETEXI
1026
1027     {
1028         .name       = "migrate_set_capability",
1029         .args_type  = "capability:s,state:b",
1030         .params     = "capability state",
1031         .help       = "Enable/Disable the usage of a capability for migration",
1032         .cmd        = hmp_migrate_set_capability,
1033         .command_completion = migrate_set_capability_completion,
1034     },
1035
1036 STEXI
1037 @item migrate_set_capability @var{capability} @var{state}
1038 @findex migrate_set_capability
1039 Enable/Disable the usage of a capability @var{capability} for migration.
1040 ETEXI
1041
1042     {
1043         .name       = "migrate_set_parameter",
1044         .args_type  = "parameter:s,value:s",
1045         .params     = "parameter value",
1046         .help       = "Set the parameter for migration",
1047         .cmd        = hmp_migrate_set_parameter,
1048         .command_completion = migrate_set_parameter_completion,
1049     },
1050
1051 STEXI
1052 @item migrate_set_parameter @var{parameter} @var{value}
1053 @findex migrate_set_parameter
1054 Set the parameter @var{parameter} for migration.
1055 ETEXI
1056
1057     {
1058         .name       = "migrate_start_postcopy",
1059         .args_type  = "",
1060         .params     = "",
1061         .help       = "Followup to a migration command to switch the migration"
1062                       " to postcopy mode. The postcopy-ram capability must "
1063                       "be set before the original migration command.",
1064         .cmd        = hmp_migrate_start_postcopy,
1065     },
1066
1067 STEXI
1068 @item migrate_start_postcopy
1069 @findex migrate_start_postcopy
1070 Switch in-progress migration to postcopy mode. Ignored after the end of
1071 migration (or once already in postcopy).
1072 ETEXI
1073
1074     {
1075         .name       = "x_colo_lost_heartbeat",
1076         .args_type  = "",
1077         .params     = "",
1078         .help       = "Tell COLO that heartbeat is lost,\n\t\t\t"
1079                       "a failover or takeover is needed.",
1080         .cmd = hmp_x_colo_lost_heartbeat,
1081     },
1082
1083 STEXI
1084 @item x_colo_lost_heartbeat
1085 @findex x_colo_lost_heartbeat
1086 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1087 ETEXI
1088
1089     {
1090         .name       = "client_migrate_info",
1091         .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1092         .params     = "protocol hostname port tls-port cert-subject",
1093         .help       = "set migration information for remote display",
1094         .cmd        = hmp_client_migrate_info,
1095     },
1096
1097 STEXI
1098 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
1099 @findex client_migrate_info
1100 Set migration information for remote display.  This makes the server
1101 ask the client to automatically reconnect using the new parameters
1102 once migration finished successfully.  Only implemented for SPICE.
1103 ETEXI
1104
1105     {
1106         .name       = "dump-guest-memory",
1107         .args_type  = "paging:-p,detach:-d,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:i?,length:i?",
1108         .params     = "[-p] [-d] [-z|-l|-s] filename [begin length]",
1109         .help       = "dump guest memory into file 'filename'.\n\t\t\t"
1110                       "-p: do paging to get guest's memory mapping.\n\t\t\t"
1111                       "-d: return immediately (do not wait for completion).\n\t\t\t"
1112                       "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1113                       "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1114                       "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1115                       "begin: the starting physical address.\n\t\t\t"
1116                       "length: the memory size, in bytes.",
1117         .cmd        = hmp_dump_guest_memory,
1118     },
1119
1120
1121 STEXI
1122 @item dump-guest-memory [-p] @var{filename} @var{begin} @var{length}
1123 @item dump-guest-memory [-z|-l|-s] @var{filename}
1124 @findex dump-guest-memory
1125 Dump guest memory to @var{protocol}. The file can be processed with crash or
1126 gdb. Without -z|-l|-s, the dump format is ELF.
1127         -p: do paging to get guest's memory mapping.
1128         -z: dump in kdump-compressed format, with zlib compression.
1129         -l: dump in kdump-compressed format, with lzo compression.
1130         -s: dump in kdump-compressed format, with snappy compression.
1131   filename: dump file name.
1132      begin: the starting physical address. It's optional, and should be
1133             specified together with length.
1134     length: the memory size, in bytes. It's optional, and should be specified
1135             together with begin.
1136 ETEXI
1137
1138 #if defined(TARGET_S390X)
1139     {
1140         .name       = "dump-skeys",
1141         .args_type  = "filename:F",
1142         .params     = "",
1143         .help       = "Save guest storage keys into file 'filename'.\n",
1144         .cmd        = hmp_dump_skeys,
1145     },
1146 #endif
1147
1148 STEXI
1149 @item dump-skeys @var{filename}
1150 @findex dump-skeys
1151 Save guest storage keys to a file.
1152 ETEXI
1153
1154     {
1155         .name       = "snapshot_blkdev",
1156         .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1157         .params     = "[-n] device [new-image-file] [format]",
1158         .help       = "initiates a live snapshot\n\t\t\t"
1159                       "of device. If a new image file is specified, the\n\t\t\t"
1160                       "new image file will become the new root image.\n\t\t\t"
1161                       "If format is specified, the snapshot file will\n\t\t\t"
1162                       "be created in that format.\n\t\t\t"
1163                       "The default format is qcow2.  The -n flag requests QEMU\n\t\t\t"
1164                       "to reuse the image found in new-image-file, instead of\n\t\t\t"
1165                       "recreating it from scratch.",
1166         .cmd        = hmp_snapshot_blkdev,
1167     },
1168
1169 STEXI
1170 @item snapshot_blkdev
1171 @findex snapshot_blkdev
1172 Snapshot device, using snapshot file as target if provided
1173 ETEXI
1174
1175     {
1176         .name       = "snapshot_blkdev_internal",
1177         .args_type  = "device:B,name:s",
1178         .params     = "device name",
1179         .help       = "take an internal snapshot of device.\n\t\t\t"
1180                       "The format of the image used by device must\n\t\t\t"
1181                       "support it, such as qcow2.\n\t\t\t",
1182         .cmd        = hmp_snapshot_blkdev_internal,
1183     },
1184
1185 STEXI
1186 @item snapshot_blkdev_internal
1187 @findex snapshot_blkdev_internal
1188 Take an internal snapshot on device if it support
1189 ETEXI
1190
1191     {
1192         .name       = "snapshot_delete_blkdev_internal",
1193         .args_type  = "device:B,name:s,id:s?",
1194         .params     = "device name [id]",
1195         .help       = "delete an internal snapshot of device.\n\t\t\t"
1196                       "If id is specified, qemu will try delete\n\t\t\t"
1197                       "the snapshot matching both id and name.\n\t\t\t"
1198                       "The format of the image used by device must\n\t\t\t"
1199                       "support it, such as qcow2.\n\t\t\t",
1200         .cmd        = hmp_snapshot_delete_blkdev_internal,
1201     },
1202
1203 STEXI
1204 @item snapshot_delete_blkdev_internal
1205 @findex snapshot_delete_blkdev_internal
1206 Delete an internal snapshot on device if it support
1207 ETEXI
1208
1209     {
1210         .name       = "drive_mirror",
1211         .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
1212         .params     = "[-n] [-f] device target [format]",
1213         .help       = "initiates live storage\n\t\t\t"
1214                       "migration for a device. The device's contents are\n\t\t\t"
1215                       "copied to the new image file, including data that\n\t\t\t"
1216                       "is written after the command is started.\n\t\t\t"
1217                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1218                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1219                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1220                       "so that the result does not need a backing file.\n\t\t\t",
1221         .cmd        = hmp_drive_mirror,
1222     },
1223 STEXI
1224 @item drive_mirror
1225 @findex drive_mirror
1226 Start mirroring a block device's writes to a new destination,
1227 using the specified target.
1228 ETEXI
1229
1230     {
1231         .name       = "drive_backup",
1232         .args_type  = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1233         .params     = "[-n] [-f] [-c] device target [format]",
1234         .help       = "initiates a point-in-time\n\t\t\t"
1235                       "copy for a device. The device's contents are\n\t\t\t"
1236                       "copied to the new image file, excluding data that\n\t\t\t"
1237                       "is written after the command is started.\n\t\t\t"
1238                       "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1239                       "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1240                       "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1241                       "so that the result does not need a backing file.\n\t\t\t"
1242                       "The -c flag requests QEMU to compress backup data\n\t\t\t"
1243                       "(if the target format supports it).\n\t\t\t",
1244         .cmd        = hmp_drive_backup,
1245     },
1246 STEXI
1247 @item drive_backup
1248 @findex drive_backup
1249 Start a point-in-time copy of a block device to a specificed target.
1250 ETEXI
1251
1252     {
1253         .name       = "drive_add",
1254         .args_type  = "node:-n,pci_addr:s,opts:s",
1255         .params     = "[-n] [[<domain>:]<bus>:]<slot>\n"
1256                       "[file=file][,if=type][,bus=n]\n"
1257                       "[,unit=m][,media=d][,index=i]\n"
1258                       "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
1259                       "[,snapshot=on|off][,cache=on|off]\n"
1260                       "[,readonly=on|off][,copy-on-read=on|off]",
1261         .help       = "add drive to PCI storage controller",
1262         .cmd        = hmp_drive_add,
1263     },
1264
1265 STEXI
1266 @item drive_add
1267 @findex drive_add
1268 Add drive to PCI storage controller.
1269 ETEXI
1270
1271     {
1272         .name       = "pcie_aer_inject_error",
1273         .args_type  = "advisory_non_fatal:-a,correctable:-c,"
1274                       "id:s,error_status:s,"
1275                       "header0:i?,header1:i?,header2:i?,header3:i?,"
1276                       "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1277         .params     = "[-a] [-c] id "
1278                       "<error_status> [<tlp header> [<tlp header prefix>]]",
1279         .help       = "inject pcie aer error\n\t\t\t"
1280                       " -a for advisory non fatal error\n\t\t\t"
1281                       " -c for correctable error\n\t\t\t"
1282                       "<id> = qdev device id\n\t\t\t"
1283                       "<error_status> = error string or 32bit\n\t\t\t"
1284                       "<tlb header> = 32bit x 4\n\t\t\t"
1285                       "<tlb header prefix> = 32bit x 4",
1286         .cmd        = hmp_pcie_aer_inject_error,
1287     },
1288
1289 STEXI
1290 @item pcie_aer_inject_error
1291 @findex pcie_aer_inject_error
1292 Inject PCIe AER error
1293 ETEXI
1294
1295     {
1296         .name       = "host_net_add",
1297         .args_type  = "device:s,opts:s?",
1298         .params     = "tap|user|socket|vde|netmap|bridge|vhost-user|dump [options]",
1299         .help       = "add host VLAN client",
1300         .cmd        = hmp_host_net_add,
1301         .command_completion = host_net_add_completion,
1302     },
1303
1304 STEXI
1305 @item host_net_add
1306 @findex host_net_add
1307 Add host VLAN client.
1308 ETEXI
1309
1310     {
1311         .name       = "host_net_remove",
1312         .args_type  = "vlan_id:i,device:s",
1313         .params     = "vlan_id name",
1314         .help       = "remove host VLAN client",
1315         .cmd        = hmp_host_net_remove,
1316         .command_completion = host_net_remove_completion,
1317     },
1318
1319 STEXI
1320 @item host_net_remove
1321 @findex host_net_remove
1322 Remove host VLAN client.
1323 ETEXI
1324
1325     {
1326         .name       = "netdev_add",
1327         .args_type  = "netdev:O",
1328         .params     = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1329         .help       = "add host network device",
1330         .cmd        = hmp_netdev_add,
1331         .command_completion = netdev_add_completion,
1332     },
1333
1334 STEXI
1335 @item netdev_add
1336 @findex netdev_add
1337 Add host network device.
1338 ETEXI
1339
1340     {
1341         .name       = "netdev_del",
1342         .args_type  = "id:s",
1343         .params     = "id",
1344         .help       = "remove host network device",
1345         .cmd        = hmp_netdev_del,
1346         .command_completion = netdev_del_completion,
1347     },
1348
1349 STEXI
1350 @item netdev_del
1351 @findex netdev_del
1352 Remove host network device.
1353 ETEXI
1354
1355     {
1356         .name       = "object_add",
1357         .args_type  = "object:O",
1358         .params     = "[qom-type=]type,id=str[,prop=value][,...]",
1359         .help       = "create QOM object",
1360         .cmd        = hmp_object_add,
1361         .command_completion = object_add_completion,
1362     },
1363
1364 STEXI
1365 @item object_add
1366 @findex object_add
1367 Create QOM object.
1368 ETEXI
1369
1370     {
1371         .name       = "object_del",
1372         .args_type  = "id:s",
1373         .params     = "id",
1374         .help       = "destroy QOM object",
1375         .cmd        = hmp_object_del,
1376         .command_completion = object_del_completion,
1377     },
1378
1379 STEXI
1380 @item object_del
1381 @findex object_del
1382 Destroy QOM object.
1383 ETEXI
1384
1385 #ifdef CONFIG_SLIRP
1386     {
1387         .name       = "hostfwd_add",
1388         .args_type  = "arg1:s,arg2:s?,arg3:s?",
1389         .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1390         .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
1391         .cmd        = hmp_hostfwd_add,
1392     },
1393 #endif
1394 STEXI
1395 @item hostfwd_add
1396 @findex hostfwd_add
1397 Redirect TCP or UDP connections from host to guest (requires -net user).
1398 ETEXI
1399
1400 #ifdef CONFIG_SLIRP
1401     {
1402         .name       = "hostfwd_remove",
1403         .args_type  = "arg1:s,arg2:s?,arg3:s?",
1404         .params     = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
1405         .help       = "remove host-to-guest TCP or UDP redirection",
1406         .cmd        = hmp_hostfwd_remove,
1407     },
1408
1409 #endif
1410 STEXI
1411 @item hostfwd_remove
1412 @findex hostfwd_remove
1413 Remove host-to-guest TCP or UDP redirection.
1414 ETEXI
1415
1416     {
1417         .name       = "balloon",
1418         .args_type  = "value:M",
1419         .params     = "target",
1420         .help       = "request VM to change its memory allocation (in MB)",
1421         .cmd        = hmp_balloon,
1422     },
1423
1424 STEXI
1425 @item balloon @var{value}
1426 @findex balloon
1427 Request VM to change its memory allocation to @var{value} (in MB).
1428 ETEXI
1429
1430     {
1431         .name       = "set_link",
1432         .args_type  = "name:s,up:b",
1433         .params     = "name on|off",
1434         .help       = "change the link status of a network adapter",
1435         .cmd        = hmp_set_link,
1436         .command_completion = set_link_completion,
1437     },
1438
1439 STEXI
1440 @item set_link @var{name} [on|off]
1441 @findex set_link
1442 Switch link @var{name} on (i.e. up) or off (i.e. down).
1443 ETEXI
1444
1445     {
1446         .name       = "watchdog_action",
1447         .args_type  = "action:s",
1448         .params     = "[reset|shutdown|poweroff|pause|debug|none]",
1449         .help       = "change watchdog action",
1450         .cmd        = hmp_watchdog_action,
1451         .command_completion = watchdog_action_completion,
1452     },
1453
1454 STEXI
1455 @item watchdog_action
1456 @findex watchdog_action
1457 Change watchdog action.
1458 ETEXI
1459
1460     {
1461         .name       = "acl_show",
1462         .args_type  = "aclname:s",
1463         .params     = "aclname",
1464         .help       = "list rules in the access control list",
1465         .cmd        = hmp_acl_show,
1466     },
1467
1468 STEXI
1469 @item acl_show @var{aclname}
1470 @findex acl_show
1471 List all the matching rules in the access control list, and the default
1472 policy. There are currently two named access control lists,
1473 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1474 certificate distinguished name, and SASL username respectively.
1475 ETEXI
1476
1477     {
1478         .name       = "acl_policy",
1479         .args_type  = "aclname:s,policy:s",
1480         .params     = "aclname allow|deny",
1481         .help       = "set default access control list policy",
1482         .cmd        = hmp_acl_policy,
1483     },
1484
1485 STEXI
1486 @item acl_policy @var{aclname} @code{allow|deny}
1487 @findex acl_policy
1488 Set the default access control list policy, used in the event that
1489 none of the explicit rules match. The default policy at startup is
1490 always @code{deny}.
1491 ETEXI
1492
1493     {
1494         .name       = "acl_add",
1495         .args_type  = "aclname:s,match:s,policy:s,index:i?",
1496         .params     = "aclname match allow|deny [index]",
1497         .help       = "add a match rule to the access control list",
1498         .cmd        = hmp_acl_add,
1499     },
1500
1501 STEXI
1502 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1503 @findex acl_add
1504 Add a match rule to the access control list, allowing or denying access.
1505 The match will normally be an exact username or x509 distinguished name,
1506 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1507 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1508 normally be appended to the end of the ACL, but can be inserted
1509 earlier in the list if the optional @var{index} parameter is supplied.
1510 ETEXI
1511
1512     {
1513         .name       = "acl_remove",
1514         .args_type  = "aclname:s,match:s",
1515         .params     = "aclname match",
1516         .help       = "remove a match rule from the access control list",
1517         .cmd        = hmp_acl_remove,
1518     },
1519
1520 STEXI
1521 @item acl_remove @var{aclname} @var{match}
1522 @findex acl_remove
1523 Remove the specified match rule from the access control list.
1524 ETEXI
1525
1526     {
1527         .name       = "acl_reset",
1528         .args_type  = "aclname:s",
1529         .params     = "aclname",
1530         .help       = "reset the access control list",
1531         .cmd        = hmp_acl_reset,
1532     },
1533
1534 STEXI
1535 @item acl_reset @var{aclname}
1536 @findex acl_reset
1537 Remove all matches from the access control list, and set the default
1538 policy back to @code{deny}.
1539 ETEXI
1540
1541     {
1542         .name       = "nbd_server_start",
1543         .args_type  = "all:-a,writable:-w,uri:s",
1544         .params     = "nbd_server_start [-a] [-w] host:port",
1545         .help       = "serve block devices on the given host and port",
1546         .cmd        = hmp_nbd_server_start,
1547     },
1548 STEXI
1549 @item nbd_server_start @var{host}:@var{port}
1550 @findex nbd_server_start
1551 Start an NBD server on the given host and/or port.  If the @option{-a}
1552 option is included, all of the virtual machine's block devices that
1553 have an inserted media on them are automatically exported; in this case,
1554 the @option{-w} option makes the devices writable too.
1555 ETEXI
1556
1557     {
1558         .name       = "nbd_server_add",
1559         .args_type  = "writable:-w,device:B",
1560         .params     = "nbd_server_add [-w] device",
1561         .help       = "export a block device via NBD",
1562         .cmd        = hmp_nbd_server_add,
1563     },
1564 STEXI
1565 @item nbd_server_add @var{device}
1566 @findex nbd_server_add
1567 Export a block device through QEMU's NBD server, which must be started
1568 beforehand with @command{nbd_server_start}.  The @option{-w} option makes the
1569 exported device writable too.
1570 ETEXI
1571
1572     {
1573         .name       = "nbd_server_stop",
1574         .args_type  = "",
1575         .params     = "nbd_server_stop",
1576         .help       = "stop serving block devices using the NBD protocol",
1577         .cmd        = hmp_nbd_server_stop,
1578     },
1579 STEXI
1580 @item nbd_server_stop
1581 @findex nbd_server_stop
1582 Stop the QEMU embedded NBD server.
1583 ETEXI
1584
1585
1586 #if defined(TARGET_I386)
1587
1588     {
1589         .name       = "mce",
1590         .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1591         .params     = "[-b] cpu bank status mcgstatus addr misc",
1592         .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1593         .cmd        = hmp_mce,
1594     },
1595
1596 #endif
1597 STEXI
1598 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1599 @findex mce (x86)
1600 Inject an MCE on the given CPU (x86 only).
1601 ETEXI
1602
1603     {
1604         .name       = "getfd",
1605         .args_type  = "fdname:s",
1606         .params     = "getfd name",
1607         .help       = "receive a file descriptor via SCM rights and assign it a name",
1608         .cmd        = hmp_getfd,
1609     },
1610
1611 STEXI
1612 @item getfd @var{fdname}
1613 @findex getfd
1614 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1615 mechanism on unix sockets, it is stored using the name @var{fdname} for
1616 later use by other monitor commands.
1617 ETEXI
1618
1619     {
1620         .name       = "closefd",
1621         .args_type  = "fdname:s",
1622         .params     = "closefd name",
1623         .help       = "close a file descriptor previously passed via SCM rights",
1624         .cmd        = hmp_closefd,
1625     },
1626
1627 STEXI
1628 @item closefd @var{fdname}
1629 @findex closefd
1630 Close the file descriptor previously assigned to @var{fdname} using the
1631 @code{getfd} command. This is only needed if the file descriptor was never
1632 used by another monitor command.
1633 ETEXI
1634
1635     {
1636         .name       = "block_passwd",
1637         .args_type  = "device:B,password:s",
1638         .params     = "block_passwd device password",
1639         .help       = "set the password of encrypted block devices",
1640         .cmd        = hmp_block_passwd,
1641     },
1642
1643 STEXI
1644 @item block_passwd @var{device} @var{password}
1645 @findex block_passwd
1646 Set the encrypted device @var{device} password to @var{password}
1647 ETEXI
1648
1649     {
1650         .name       = "block_set_io_throttle",
1651         .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1652         .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1653         .help       = "change I/O throttle limits for a block drive",
1654         .cmd        = hmp_block_set_io_throttle,
1655     },
1656
1657 STEXI
1658 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1659 @findex block_set_io_throttle
1660 Change I/O throttle limits for a block drive to @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1661 ETEXI
1662
1663     {
1664         .name       = "set_password",
1665         .args_type  = "protocol:s,password:s,connected:s?",
1666         .params     = "protocol password action-if-connected",
1667         .help       = "set spice/vnc password",
1668         .cmd        = hmp_set_password,
1669     },
1670
1671 STEXI
1672 @item set_password [ vnc | spice ] password [ action-if-connected ]
1673 @findex set_password
1674 Change spice/vnc password.  Use zero to make the password stay valid
1675 forever.  @var{action-if-connected} specifies what should happen in
1676 case a connection is established: @var{fail} makes the password change
1677 fail.  @var{disconnect} changes the password and disconnects the
1678 client.  @var{keep} changes the password and keeps the connection up.
1679 @var{keep} is the default.
1680 ETEXI
1681
1682     {
1683         .name       = "expire_password",
1684         .args_type  = "protocol:s,time:s",
1685         .params     = "protocol time",
1686         .help       = "set spice/vnc password expire-time",
1687         .cmd        = hmp_expire_password,
1688     },
1689
1690 STEXI
1691 @item expire_password [ vnc | spice ] expire-time
1692 @findex expire_password
1693 Specify when a password for spice/vnc becomes
1694 invalid. @var{expire-time} accepts:
1695
1696 @table @var
1697 @item now
1698 Invalidate password instantly.
1699
1700 @item never
1701 Password stays valid forever.
1702
1703 @item +nsec
1704 Password stays valid for @var{nsec} seconds starting now.
1705
1706 @item nsec
1707 Password is invalidated at the given time.  @var{nsec} are the seconds
1708 passed since 1970, i.e. unix epoch.
1709
1710 @end table
1711 ETEXI
1712
1713     {
1714         .name       = "chardev-add",
1715         .args_type  = "args:s",
1716         .params     = "args",
1717         .help       = "add chardev",
1718         .cmd        = hmp_chardev_add,
1719         .command_completion = chardev_add_completion,
1720     },
1721
1722 STEXI
1723 @item chardev-add args
1724 @findex chardev-add
1725 chardev_add accepts the same parameters as the -chardev command line switch.
1726
1727 ETEXI
1728
1729     {
1730         .name       = "chardev-remove",
1731         .args_type  = "id:s",
1732         .params     = "id",
1733         .help       = "remove chardev",
1734         .cmd        = hmp_chardev_remove,
1735         .command_completion = chardev_remove_completion,
1736     },
1737
1738 STEXI
1739 @item chardev-remove id
1740 @findex chardev-remove
1741 Removes the chardev @var{id}.
1742
1743 ETEXI
1744
1745     {
1746         .name       = "qemu-io",
1747         .args_type  = "device:B,command:s",
1748         .params     = "[device] \"[command]\"",
1749         .help       = "run a qemu-io command on a block device",
1750         .cmd        = hmp_qemu_io,
1751     },
1752
1753 STEXI
1754 @item qemu-io @var{device} @var{command}
1755 @findex qemu-io
1756 Executes a qemu-io command on the given block device.
1757
1758 ETEXI
1759
1760     {
1761         .name       = "cpu-add",
1762         .args_type  = "id:i",
1763         .params     = "id",
1764         .help       = "add cpu",
1765         .cmd        = hmp_cpu_add,
1766     },
1767
1768 STEXI
1769 @item cpu-add @var{id}
1770 @findex cpu-add
1771 Add CPU with id @var{id}
1772 ETEXI
1773
1774     {
1775         .name       = "qom-list",
1776         .args_type  = "path:s?",
1777         .params     = "path",
1778         .help       = "list QOM properties",
1779         .cmd        = hmp_qom_list,
1780     },
1781
1782 STEXI
1783 @item qom-list [@var{path}]
1784 Print QOM properties of object at location @var{path}
1785 ETEXI
1786
1787     {
1788         .name       = "qom-set",
1789         .args_type  = "path:s,property:s,value:s",
1790         .params     = "path property value",
1791         .help       = "set QOM property",
1792         .cmd        = hmp_qom_set,
1793     },
1794
1795 STEXI
1796 @item qom-set @var{path} @var{property} @var{value}
1797 Set QOM property @var{property} of object at location @var{path} to value @var{value}
1798 ETEXI
1799
1800     {
1801         .name       = "info",
1802         .args_type  = "item:s?",
1803         .params     = "[subcommand]",
1804         .help       = "show various information about the system state",
1805         .cmd        = hmp_info_help,
1806         .sub_table  = info_cmds,
1807     },
1808
1809 STEXI
1810 @end table
1811 ETEXI