xref: /openbmc/qemu/hmp-commands.hx (revision 8e6fe6b8)
1HXCOMM Use DEFHEADING() to define headings in both help text and texi
2HXCOMM Text between STEXI and ETEXI are copied to texi version and
3HXCOMM discarded from C version
4HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
5HXCOMM monitor commands
6HXCOMM HXCOMM can be used for comments, discarded from both texi and C
7
8STEXI
9@table @option
10ETEXI
11
12    {
13        .name       = "help|?",
14        .args_type  = "name:S?",
15        .params     = "[cmd]",
16        .help       = "show the help",
17        .cmd        = do_help_cmd,
18        .flags      = "p",
19    },
20
21STEXI
22@item help or ? [@var{cmd}]
23@findex help
24Show the help for all commands or just for command @var{cmd}.
25ETEXI
26
27    {
28        .name       = "commit",
29        .args_type  = "device:B",
30        .params     = "device|all",
31        .help       = "commit changes to the disk images (if -snapshot is used) or backing files",
32        .cmd        = hmp_commit,
33    },
34
35STEXI
36@item commit
37@findex commit
38Commit changes to the disk images (if -snapshot is used) or backing files.
39If the backing file is smaller than the snapshot, then the backing file will be
40resized to be the same size as the snapshot.  If the snapshot is smaller than
41the backing file, the backing file will not be truncated.  If you want the
42backing file to match the size of the smaller snapshot, you can safely truncate
43it yourself once the commit operation successfully completes.
44ETEXI
45
46    {
47        .name       = "q|quit",
48        .args_type  = "",
49        .params     = "",
50        .help       = "quit the emulator",
51        .cmd        = hmp_quit,
52    },
53
54STEXI
55@item q or quit
56@findex quit
57Quit the emulator.
58ETEXI
59
60    {
61        .name       = "exit_preconfig",
62        .args_type  = "",
63        .params     = "",
64        .help       = "exit the preconfig state",
65        .cmd        = hmp_exit_preconfig,
66        .flags      = "p",
67    },
68
69STEXI
70@item exit_preconfig
71@findex exit_preconfig
72This command makes QEMU exit the preconfig state and proceed with
73VM initialization using configuration data provided on the command line
74and via the QMP monitor during the preconfig state. The command is only
75available during the preconfig state (i.e. when the --preconfig command
76line option was in use).
77ETEXI
78
79    {
80        .name       = "block_resize",
81        .args_type  = "device:B,size:o",
82        .params     = "device size",
83        .help       = "resize a block image",
84        .cmd        = hmp_block_resize,
85    },
86
87STEXI
88@item block_resize
89@findex block_resize
90Resize a block image while a guest is running.  Usually requires guest
91action to see the updated size.  Resize to a lower size is supported,
92but should be used with extreme caution.  Note that this command only
93resizes image files, it can not resize block devices like LVM volumes.
94ETEXI
95
96    {
97        .name       = "block_stream",
98        .args_type  = "device:B,speed:o?,base:s?",
99        .params     = "device [speed [base]]",
100        .help       = "copy data from a backing file into a block device",
101        .cmd        = hmp_block_stream,
102    },
103
104STEXI
105@item block_stream
106@findex block_stream
107Copy data from a backing file into a block device.
108ETEXI
109
110    {
111        .name       = "block_job_set_speed",
112        .args_type  = "device:B,speed:o",
113        .params     = "device speed",
114        .help       = "set maximum speed for a background block operation",
115        .cmd        = hmp_block_job_set_speed,
116    },
117
118STEXI
119@item block_job_set_speed
120@findex block_job_set_speed
121Set maximum speed for a background block operation.
122ETEXI
123
124    {
125        .name       = "block_job_cancel",
126        .args_type  = "force:-f,device:B",
127        .params     = "[-f] device",
128        .help       = "stop an active background block operation (use -f"
129                      "\n\t\t\t if you want to abort the operation immediately"
130                      "\n\t\t\t instead of keep running until data is in sync)",
131        .cmd        = hmp_block_job_cancel,
132    },
133
134STEXI
135@item block_job_cancel
136@findex block_job_cancel
137Stop an active background block operation (streaming, mirroring).
138ETEXI
139
140    {
141        .name       = "block_job_complete",
142        .args_type  = "device:B",
143        .params     = "device",
144        .help       = "stop an active background block operation",
145        .cmd        = hmp_block_job_complete,
146    },
147
148STEXI
149@item block_job_complete
150@findex block_job_complete
151Manually trigger completion of an active background block operation.
152For mirroring, this will switch the device to the destination path.
153ETEXI
154
155    {
156        .name       = "block_job_pause",
157        .args_type  = "device:B",
158        .params     = "device",
159        .help       = "pause an active background block operation",
160        .cmd        = hmp_block_job_pause,
161    },
162
163STEXI
164@item block_job_pause
165@findex block_job_pause
166Pause an active block streaming operation.
167ETEXI
168
169    {
170        .name       = "block_job_resume",
171        .args_type  = "device:B",
172        .params     = "device",
173        .help       = "resume a paused background block operation",
174        .cmd        = hmp_block_job_resume,
175    },
176
177STEXI
178@item block_job_resume
179@findex block_job_resume
180Resume a paused block streaming operation.
181ETEXI
182
183    {
184        .name       = "eject",
185        .args_type  = "force:-f,device:B",
186        .params     = "[-f] device",
187        .help       = "eject a removable medium (use -f to force it)",
188        .cmd        = hmp_eject,
189    },
190
191STEXI
192@item eject [-f] @var{device}
193@findex eject
194Eject a removable medium (use -f to force it).
195ETEXI
196
197    {
198        .name       = "drive_del",
199        .args_type  = "id:B",
200        .params     = "device",
201        .help       = "remove host block device",
202        .cmd        = hmp_drive_del,
203    },
204
205STEXI
206@item drive_del @var{device}
207@findex drive_del
208Remove host block device.  The result is that guest generated IO is no longer
209submitted against the host device underlying the disk.  Once a drive has
210been deleted, the QEMU Block layer returns -EIO which results in IO
211errors in the guest for applications that are reading/writing to the device.
212These errors are always reported to the guest, regardless of the drive's error
213actions (drive options rerror, werror).
214ETEXI
215
216    {
217        .name       = "change",
218        .args_type  = "device:B,target:F,arg:s?,read-only-mode:s?",
219        .params     = "device filename [format [read-only-mode]]",
220        .help       = "change a removable medium, optional format",
221        .cmd        = hmp_change,
222    },
223
224STEXI
225@item change @var{device} @var{setting}
226@findex change
227Change the configuration of a device.
228
229@table @option
230@item change @var{diskdevice} @var{filename} [@var{format} [@var{read-only-mode}]]
231Change the medium for a removable disk device to point to @var{filename}. eg
232
233@example
234(qemu) change ide1-cd0 /path/to/some.iso
235@end example
236
237@var{format} is optional.
238
239@var{read-only-mode} may be used to change the read-only status of the device.
240It accepts the following values:
241
242@table @var
243@item retain
244Retains the current status; this is the default.
245
246@item read-only
247Makes the device read-only.
248
249@item read-write
250Makes the device writable.
251@end table
252
253@item change vnc @var{display},@var{options}
254Change the configuration of the VNC server. The valid syntax for @var{display}
255and @var{options} are described at @ref{sec_invocation}. eg
256
257@example
258(qemu) change vnc localhost:1
259@end example
260
261@item change vnc password [@var{password}]
262
263Change the password associated with the VNC server. If the new password is not
264supplied, the monitor will prompt for it to be entered. VNC passwords are only
265significant up to 8 letters. eg
266
267@example
268(qemu) change vnc password
269Password: ********
270@end example
271
272@end table
273ETEXI
274
275    {
276        .name       = "screendump",
277        .args_type  = "filename:F,device:s?,head:i?",
278        .params     = "filename [device [head]]",
279        .help       = "save screen from head 'head' of display device 'device' "
280                      "into PPM image 'filename'",
281        .cmd        = hmp_screendump,
282    },
283
284STEXI
285@item screendump @var{filename}
286@findex screendump
287Save screen into PPM image @var{filename}.
288ETEXI
289
290    {
291        .name       = "logfile",
292        .args_type  = "filename:F",
293        .params     = "filename",
294        .help       = "output logs to 'filename'",
295        .cmd        = hmp_logfile,
296    },
297
298STEXI
299@item logfile @var{filename}
300@findex logfile
301Output logs to @var{filename}.
302ETEXI
303
304    {
305        .name       = "trace-event",
306        .args_type  = "name:s,option:b,vcpu:i?",
307        .params     = "name on|off [vcpu]",
308        .help       = "changes status of a specific trace event "
309                      "(vcpu: vCPU to set, default is all)",
310        .cmd = hmp_trace_event,
311        .command_completion = trace_event_completion,
312    },
313
314STEXI
315@item trace-event
316@findex trace-event
317changes status of a trace event
318ETEXI
319
320#if defined(CONFIG_TRACE_SIMPLE)
321    {
322        .name       = "trace-file",
323        .args_type  = "op:s?,arg:F?",
324        .params     = "on|off|flush|set [arg]",
325        .help       = "open, close, or flush trace file, or set a new file name",
326        .cmd        = hmp_trace_file,
327    },
328
329STEXI
330@item trace-file on|off|flush
331@findex trace-file
332Open, close, or flush the trace file.  If no argument is given, the status of the trace file is displayed.
333ETEXI
334#endif
335
336    {
337        .name       = "log",
338        .args_type  = "items:s",
339        .params     = "item1[,...]",
340        .help       = "activate logging of the specified items",
341        .cmd        = hmp_log,
342    },
343
344STEXI
345@item log @var{item1}[,...]
346@findex log
347Activate logging of the specified items.
348ETEXI
349
350    {
351        .name       = "savevm",
352        .args_type  = "name:s?",
353        .params     = "tag",
354        .help       = "save a VM snapshot. If no tag is provided, a new snapshot is created",
355        .cmd        = hmp_savevm,
356    },
357
358STEXI
359@item savevm @var{tag}
360@findex savevm
361Create a snapshot of the whole virtual machine. If @var{tag} is
362provided, it is used as human readable identifier. If there is already
363a snapshot with the same tag, it is replaced. More info at
364@ref{vm_snapshots}.
365
366Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
367only @var{tag} as parameter.
368ETEXI
369
370    {
371        .name       = "loadvm",
372        .args_type  = "name:s",
373        .params     = "tag",
374        .help       = "restore a VM snapshot from its tag",
375        .cmd        = hmp_loadvm,
376        .command_completion = loadvm_completion,
377    },
378
379STEXI
380@item loadvm @var{tag}
381@findex loadvm
382Set the whole virtual machine to the snapshot identified by the tag
383@var{tag}.
384
385Since 4.0, loadvm stopped accepting snapshot id as parameter.
386ETEXI
387
388    {
389        .name       = "delvm",
390        .args_type  = "name:s",
391        .params     = "tag",
392        .help       = "delete a VM snapshot from its tag",
393        .cmd        = hmp_delvm,
394        .command_completion = delvm_completion,
395    },
396
397STEXI
398@item delvm @var{tag}
399@findex delvm
400Delete the snapshot identified by @var{tag}.
401
402Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
403only @var{tag} as parameter.
404ETEXI
405
406    {
407        .name       = "singlestep",
408        .args_type  = "option:s?",
409        .params     = "[on|off]",
410        .help       = "run emulation in singlestep mode or switch to normal mode",
411        .cmd        = hmp_singlestep,
412    },
413
414STEXI
415@item singlestep [off]
416@findex singlestep
417Run the emulation in single step mode.
418If called with option off, the emulation returns to normal mode.
419ETEXI
420
421    {
422        .name       = "stop",
423        .args_type  = "",
424        .params     = "",
425        .help       = "stop emulation",
426        .cmd        = hmp_stop,
427    },
428
429STEXI
430@item stop
431@findex stop
432Stop emulation.
433ETEXI
434
435    {
436        .name       = "c|cont",
437        .args_type  = "",
438        .params     = "",
439        .help       = "resume emulation",
440        .cmd        = hmp_cont,
441    },
442
443STEXI
444@item c or cont
445@findex cont
446Resume emulation.
447ETEXI
448
449    {
450        .name       = "system_wakeup",
451        .args_type  = "",
452        .params     = "",
453        .help       = "wakeup guest from suspend",
454        .cmd        = hmp_system_wakeup,
455    },
456
457STEXI
458@item system_wakeup
459@findex system_wakeup
460Wakeup guest from suspend.
461ETEXI
462
463    {
464        .name       = "gdbserver",
465        .args_type  = "device:s?",
466        .params     = "[device]",
467        .help       = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
468        .cmd        = hmp_gdbserver,
469    },
470
471STEXI
472@item gdbserver [@var{port}]
473@findex gdbserver
474Start gdbserver session (default @var{port}=1234)
475ETEXI
476
477    {
478        .name       = "x",
479        .args_type  = "fmt:/,addr:l",
480        .params     = "/fmt addr",
481        .help       = "virtual memory dump starting at 'addr'",
482        .cmd        = hmp_memory_dump,
483    },
484
485STEXI
486@item x/fmt @var{addr}
487@findex x
488Virtual memory dump starting at @var{addr}.
489ETEXI
490
491    {
492        .name       = "xp",
493        .args_type  = "fmt:/,addr:l",
494        .params     = "/fmt addr",
495        .help       = "physical memory dump starting at 'addr'",
496        .cmd        = hmp_physical_memory_dump,
497    },
498
499STEXI
500@item xp /@var{fmt} @var{addr}
501@findex xp
502Physical memory dump starting at @var{addr}.
503
504@var{fmt} is a format which tells the command how to format the
505data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
506
507@table @var
508@item count
509is the number of items to be dumped.
510
511@item format
512can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
513c (char) or i (asm instruction).
514
515@item size
516can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
517@code{h} or @code{w} can be specified with the @code{i} format to
518respectively select 16 or 32 bit code instruction size.
519
520@end table
521
522Examples:
523@itemize
524@item
525Dump 10 instructions at the current instruction pointer:
526@example
527(qemu) x/10i $eip
5280x90107063:  ret
5290x90107064:  sti
5300x90107065:  lea    0x0(%esi,1),%esi
5310x90107069:  lea    0x0(%edi,1),%edi
5320x90107070:  ret
5330x90107071:  jmp    0x90107080
5340x90107073:  nop
5350x90107074:  nop
5360x90107075:  nop
5370x90107076:  nop
538@end example
539
540@item
541Dump 80 16 bit values at the start of the video memory.
542@smallexample
543(qemu) xp/80hx 0xb8000
5440x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
5450x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
5460x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
5470x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
5480x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
5490x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
5500x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
5510x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
5520x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
5530x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
554@end smallexample
555@end itemize
556ETEXI
557
558    {
559        .name       = "gpa2hva",
560        .args_type  = "addr:l",
561        .params     = "addr",
562        .help       = "print the host virtual address corresponding to a guest physical address",
563        .cmd        = hmp_gpa2hva,
564    },
565
566STEXI
567@item gpa2hva @var{addr}
568@findex gpa2hva
569Print the host virtual address at which the guest's physical address @var{addr}
570is mapped.
571ETEXI
572
573#ifdef CONFIG_LINUX
574    {
575        .name       = "gpa2hpa",
576        .args_type  = "addr:l",
577        .params     = "addr",
578        .help       = "print the host physical address corresponding to a guest physical address",
579        .cmd        = hmp_gpa2hpa,
580    },
581#endif
582
583STEXI
584@item gpa2hpa @var{addr}
585@findex gpa2hpa
586Print the host physical address at which the guest's physical address @var{addr}
587is mapped.
588ETEXI
589
590    {
591        .name       = "gva2gpa",
592        .args_type  = "addr:l",
593        .params     = "addr",
594        .help       = "print the guest physical address corresponding to a guest virtual address",
595        .cmd        = hmp_gva2gpa,
596    },
597
598STEXI
599@item gva2gpa @var{addr}
600@findex gva2gpa
601Print the guest physical address at which the guest's virtual address @var{addr}
602is mapped based on the mapping for the current CPU.
603ETEXI
604
605    {
606        .name       = "p|print",
607        .args_type  = "fmt:/,val:l",
608        .params     = "/fmt expr",
609        .help       = "print expression value (use $reg for CPU register access)",
610        .cmd        = do_print,
611    },
612
613STEXI
614@item p or print/@var{fmt} @var{expr}
615@findex print
616Print expression value. Only the @var{format} part of @var{fmt} is
617used.
618ETEXI
619
620    {
621        .name       = "i",
622        .args_type  = "fmt:/,addr:i,index:i.",
623        .params     = "/fmt addr",
624        .help       = "I/O port read",
625        .cmd        = hmp_ioport_read,
626    },
627
628STEXI
629@item i/@var{fmt} @var{addr} [.@var{index}]
630@findex i
631Read I/O port.
632ETEXI
633
634    {
635        .name       = "o",
636        .args_type  = "fmt:/,addr:i,val:i",
637        .params     = "/fmt addr value",
638        .help       = "I/O port write",
639        .cmd        = hmp_ioport_write,
640    },
641
642STEXI
643@item o/@var{fmt} @var{addr} @var{val}
644@findex o
645Write to I/O port.
646ETEXI
647
648    {
649        .name       = "sendkey",
650        .args_type  = "keys:s,hold-time:i?",
651        .params     = "keys [hold_ms]",
652        .help       = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
653        .cmd        = hmp_sendkey,
654        .command_completion = sendkey_completion,
655    },
656
657STEXI
658@item sendkey @var{keys}
659@findex sendkey
660Send @var{keys} to the guest. @var{keys} could be the name of the
661key or the raw value in hexadecimal format. Use @code{-} to press
662several keys simultaneously. Example:
663@example
664sendkey ctrl-alt-f1
665@end example
666
667This command is useful to send keys that your graphical user interface
668intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
669ETEXI
670    {
671        .name       = "sync-profile",
672        .args_type  = "op:s?",
673        .params     = "[on|off|reset]",
674        .help       = "enable, disable or reset synchronization profiling. "
675                      "With no arguments, prints whether profiling is on or off.",
676        .cmd        = hmp_sync_profile,
677    },
678
679STEXI
680@item sync-profile [on|off|reset]
681@findex sync-profile
682Enable, disable or reset synchronization profiling. With no arguments, prints
683whether profiling is on or off.
684ETEXI
685
686    {
687        .name       = "system_reset",
688        .args_type  = "",
689        .params     = "",
690        .help       = "reset the system",
691        .cmd        = hmp_system_reset,
692    },
693
694STEXI
695@item system_reset
696@findex system_reset
697Reset the system.
698ETEXI
699
700    {
701        .name       = "system_powerdown",
702        .args_type  = "",
703        .params     = "",
704        .help       = "send system power down event",
705        .cmd        = hmp_system_powerdown,
706    },
707
708STEXI
709@item system_powerdown
710@findex system_powerdown
711Power down the system (if supported).
712ETEXI
713
714    {
715        .name       = "sum",
716        .args_type  = "start:i,size:i",
717        .params     = "addr size",
718        .help       = "compute the checksum of a memory region",
719        .cmd        = hmp_sum,
720    },
721
722STEXI
723@item sum @var{addr} @var{size}
724@findex sum
725Compute the checksum of a memory region.
726ETEXI
727
728    {
729        .name       = "device_add",
730        .args_type  = "device:O",
731        .params     = "driver[,prop=value][,...]",
732        .help       = "add device, like -device on the command line",
733        .cmd        = hmp_device_add,
734        .command_completion = device_add_completion,
735    },
736
737STEXI
738@item device_add @var{config}
739@findex device_add
740Add device.
741ETEXI
742
743    {
744        .name       = "device_del",
745        .args_type  = "id:s",
746        .params     = "device",
747        .help       = "remove device",
748        .cmd        = hmp_device_del,
749        .command_completion = device_del_completion,
750    },
751
752STEXI
753@item device_del @var{id}
754@findex device_del
755Remove device @var{id}. @var{id} may be a short ID
756or a QOM object path.
757ETEXI
758
759    {
760        .name       = "cpu",
761        .args_type  = "index:i",
762        .params     = "index",
763        .help       = "set the default CPU",
764        .cmd        = hmp_cpu,
765    },
766
767STEXI
768@item cpu @var{index}
769@findex cpu
770Set the default CPU.
771ETEXI
772
773    {
774        .name       = "mouse_move",
775        .args_type  = "dx_str:s,dy_str:s,dz_str:s?",
776        .params     = "dx dy [dz]",
777        .help       = "send mouse move events",
778        .cmd        = hmp_mouse_move,
779    },
780
781STEXI
782@item mouse_move @var{dx} @var{dy} [@var{dz}]
783@findex mouse_move
784Move the active mouse to the specified coordinates @var{dx} @var{dy}
785with optional scroll axis @var{dz}.
786ETEXI
787
788    {
789        .name       = "mouse_button",
790        .args_type  = "button_state:i",
791        .params     = "state",
792        .help       = "change mouse button state (1=L, 2=M, 4=R)",
793        .cmd        = hmp_mouse_button,
794    },
795
796STEXI
797@item mouse_button @var{val}
798@findex mouse_button
799Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
800ETEXI
801
802    {
803        .name       = "mouse_set",
804        .args_type  = "index:i",
805        .params     = "index",
806        .help       = "set which mouse device receives events",
807        .cmd        = hmp_mouse_set,
808    },
809
810STEXI
811@item mouse_set @var{index}
812@findex mouse_set
813Set which mouse device receives events at given @var{index}, index
814can be obtained with
815@example
816info mice
817@end example
818ETEXI
819
820    {
821        .name       = "wavcapture",
822        .args_type  = "path:F,freq:i?,bits:i?,nchannels:i?",
823        .params     = "path [frequency [bits [channels]]]",
824        .help       = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
825        .cmd        = hmp_wavcapture,
826    },
827STEXI
828@item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
829@findex wavcapture
830Capture audio into @var{filename}. Using sample rate @var{frequency}
831bits per sample @var{bits} and number of channels @var{channels}.
832
833Defaults:
834@itemize @minus
835@item Sample rate = 44100 Hz - CD quality
836@item Bits = 16
837@item Number of channels = 2 - Stereo
838@end itemize
839ETEXI
840
841    {
842        .name       = "stopcapture",
843        .args_type  = "n:i",
844        .params     = "capture index",
845        .help       = "stop capture",
846        .cmd        = hmp_stopcapture,
847    },
848STEXI
849@item stopcapture @var{index}
850@findex stopcapture
851Stop capture with a given @var{index}, index can be obtained with
852@example
853info capture
854@end example
855ETEXI
856
857    {
858        .name       = "memsave",
859        .args_type  = "val:l,size:i,filename:s",
860        .params     = "addr size file",
861        .help       = "save to disk virtual memory dump starting at 'addr' of size 'size'",
862        .cmd        = hmp_memsave,
863    },
864
865STEXI
866@item memsave @var{addr} @var{size} @var{file}
867@findex memsave
868save to disk virtual memory dump starting at @var{addr} of size @var{size}.
869ETEXI
870
871    {
872        .name       = "pmemsave",
873        .args_type  = "val:l,size:i,filename:s",
874        .params     = "addr size file",
875        .help       = "save to disk physical memory dump starting at 'addr' of size 'size'",
876        .cmd        = hmp_pmemsave,
877    },
878
879STEXI
880@item pmemsave @var{addr} @var{size} @var{file}
881@findex pmemsave
882save to disk physical memory dump starting at @var{addr} of size @var{size}.
883ETEXI
884
885    {
886        .name       = "boot_set",
887        .args_type  = "bootdevice:s",
888        .params     = "bootdevice",
889        .help       = "define new values for the boot device list",
890        .cmd        = hmp_boot_set,
891    },
892
893STEXI
894@item boot_set @var{bootdevicelist}
895@findex boot_set
896Define new values for the boot device list. Those values will override
897the values specified on the command line through the @code{-boot} option.
898
899The values that can be specified here depend on the machine type, but are
900the same that can be specified in the @code{-boot} command line option.
901ETEXI
902
903    {
904        .name       = "nmi",
905        .args_type  = "",
906        .params     = "",
907        .help       = "inject an NMI",
908        .cmd        = hmp_nmi,
909    },
910STEXI
911@item nmi @var{cpu}
912@findex nmi
913Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
914
915ETEXI
916
917    {
918        .name       = "ringbuf_write",
919        .args_type  = "device:s,data:s",
920        .params     = "device data",
921        .help       = "Write to a ring buffer character device",
922        .cmd        = hmp_ringbuf_write,
923        .command_completion = ringbuf_write_completion,
924    },
925
926STEXI
927@item ringbuf_write @var{device} @var{data}
928@findex ringbuf_write
929Write @var{data} to ring buffer character device @var{device}.
930@var{data} must be a UTF-8 string.
931
932ETEXI
933
934    {
935        .name       = "ringbuf_read",
936        .args_type  = "device:s,size:i",
937        .params     = "device size",
938        .help       = "Read from a ring buffer character device",
939        .cmd        = hmp_ringbuf_read,
940        .command_completion = ringbuf_write_completion,
941    },
942
943STEXI
944@item ringbuf_read @var{device}
945@findex ringbuf_read
946Read and print up to @var{size} bytes from ring buffer character
947device @var{device}.
948Certain non-printable characters are printed \uXXXX, where XXXX is the
949character code in hexadecimal.  Character \ is printed \\.
950Bug: can screw up when the buffer contains invalid UTF-8 sequences,
951NUL characters, after the ring buffer lost data, and when reading
952stops because the size limit is reached.
953
954ETEXI
955
956    {
957        .name       = "announce_self",
958        .args_type  = "",
959        .params     = "",
960        .help       = "Trigger GARP/RARP announcements",
961        .cmd        = hmp_announce_self,
962    },
963
964STEXI
965@item announce_self
966@findex announce_self
967Trigger a round of GARP/RARP broadcasts; this is useful for explicitly updating the
968network infrastructure after a reconfiguration or some forms of migration.
969The timings of the round are set by the migration announce parameters.
970ETEXI
971
972    {
973        .name       = "migrate",
974        .args_type  = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
975        .params     = "[-d] [-b] [-i] [-r] uri",
976        .help       = "migrate to URI (using -d to not wait for completion)"
977		      "\n\t\t\t -b for migration without shared storage with"
978		      " full copy of disk\n\t\t\t -i for migration without "
979		      "shared storage with incremental copy of disk "
980		      "(base image shared between src and destination)"
981                      "\n\t\t\t -r to resume a paused migration",
982        .cmd        = hmp_migrate,
983    },
984
985
986STEXI
987@item migrate [-d] [-b] [-i] @var{uri}
988@findex migrate
989Migrate to @var{uri} (using -d to not wait for completion).
990	-b for migration with full copy of disk
991	-i for migration with incremental copy of disk (base image is shared)
992ETEXI
993
994    {
995        .name       = "migrate_cancel",
996        .args_type  = "",
997        .params     = "",
998        .help       = "cancel the current VM migration",
999        .cmd        = hmp_migrate_cancel,
1000    },
1001
1002STEXI
1003@item migrate_cancel
1004@findex migrate_cancel
1005Cancel the current VM migration.
1006ETEXI
1007
1008    {
1009        .name       = "migrate_continue",
1010        .args_type  = "state:s",
1011        .params     = "state",
1012        .help       = "Continue migration from the given paused state",
1013        .cmd        = hmp_migrate_continue,
1014    },
1015STEXI
1016@item migrate_continue @var{state}
1017@findex migrate_continue
1018Continue migration from the paused state @var{state}
1019ETEXI
1020
1021    {
1022        .name       = "migrate_incoming",
1023        .args_type  = "uri:s",
1024        .params     = "uri",
1025        .help       = "Continue an incoming migration from an -incoming defer",
1026        .cmd        = hmp_migrate_incoming,
1027    },
1028
1029STEXI
1030@item migrate_incoming @var{uri}
1031@findex migrate_incoming
1032Continue an incoming migration using the @var{uri} (that has the same syntax
1033as the -incoming option).
1034ETEXI
1035
1036    {
1037        .name       = "migrate_recover",
1038        .args_type  = "uri:s",
1039        .params     = "uri",
1040        .help       = "Continue a paused incoming postcopy migration",
1041        .cmd        = hmp_migrate_recover,
1042    },
1043
1044STEXI
1045@item migrate_recover @var{uri}
1046@findex migrate_recover
1047Continue a paused incoming postcopy migration using the @var{uri}.
1048ETEXI
1049
1050    {
1051        .name       = "migrate_pause",
1052        .args_type  = "",
1053        .params     = "",
1054        .help       = "Pause an ongoing migration (postcopy-only)",
1055        .cmd        = hmp_migrate_pause,
1056    },
1057
1058STEXI
1059@item migrate_pause
1060@findex migrate_pause
1061Pause an ongoing migration.  Currently it only supports postcopy.
1062ETEXI
1063
1064    {
1065        .name       = "migrate_set_cache_size",
1066        .args_type  = "value:o",
1067        .params     = "value",
1068        .help       = "set cache size (in bytes) for XBZRLE migrations,"
1069                      "the cache size will be rounded down to the nearest "
1070                      "power of 2.\n"
1071                      "The cache size affects the number of cache misses."
1072                      "In case of a high cache miss ratio you need to increase"
1073                      " the cache size",
1074        .cmd        = hmp_migrate_set_cache_size,
1075    },
1076
1077STEXI
1078@item migrate_set_cache_size @var{value}
1079@findex migrate_set_cache_size
1080Set cache size to @var{value} (in bytes) for xbzrle migrations.
1081ETEXI
1082
1083    {
1084        .name       = "migrate_set_speed",
1085        .args_type  = "value:o",
1086        .params     = "value",
1087        .help       = "set maximum speed (in bytes) for migrations. "
1088	"Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
1089        .cmd        = hmp_migrate_set_speed,
1090    },
1091
1092STEXI
1093@item migrate_set_speed @var{value}
1094@findex migrate_set_speed
1095Set maximum speed to @var{value} (in bytes) for migrations.
1096ETEXI
1097
1098    {
1099        .name       = "migrate_set_downtime",
1100        .args_type  = "value:T",
1101        .params     = "value",
1102        .help       = "set maximum tolerated downtime (in seconds) for migrations",
1103        .cmd        = hmp_migrate_set_downtime,
1104    },
1105
1106STEXI
1107@item migrate_set_downtime @var{second}
1108@findex migrate_set_downtime
1109Set maximum tolerated downtime (in seconds) for migration.
1110ETEXI
1111
1112    {
1113        .name       = "migrate_set_capability",
1114        .args_type  = "capability:s,state:b",
1115        .params     = "capability state",
1116        .help       = "Enable/Disable the usage of a capability for migration",
1117        .cmd        = hmp_migrate_set_capability,
1118        .command_completion = migrate_set_capability_completion,
1119    },
1120
1121STEXI
1122@item migrate_set_capability @var{capability} @var{state}
1123@findex migrate_set_capability
1124Enable/Disable the usage of a capability @var{capability} for migration.
1125ETEXI
1126
1127    {
1128        .name       = "migrate_set_parameter",
1129        .args_type  = "parameter:s,value:s",
1130        .params     = "parameter value",
1131        .help       = "Set the parameter for migration",
1132        .cmd        = hmp_migrate_set_parameter,
1133        .command_completion = migrate_set_parameter_completion,
1134    },
1135
1136STEXI
1137@item migrate_set_parameter @var{parameter} @var{value}
1138@findex migrate_set_parameter
1139Set the parameter @var{parameter} for migration.
1140ETEXI
1141
1142    {
1143        .name       = "migrate_start_postcopy",
1144        .args_type  = "",
1145        .params     = "",
1146        .help       = "Followup to a migration command to switch the migration"
1147                      " to postcopy mode. The postcopy-ram capability must "
1148                      "be set on both source and destination before the "
1149                      "original migration command .",
1150        .cmd        = hmp_migrate_start_postcopy,
1151    },
1152
1153STEXI
1154@item migrate_start_postcopy
1155@findex migrate_start_postcopy
1156Switch in-progress migration to postcopy mode. Ignored after the end of
1157migration (or once already in postcopy).
1158ETEXI
1159
1160    {
1161        .name       = "x_colo_lost_heartbeat",
1162        .args_type  = "",
1163        .params     = "",
1164        .help       = "Tell COLO that heartbeat is lost,\n\t\t\t"
1165                      "a failover or takeover is needed.",
1166        .cmd = hmp_x_colo_lost_heartbeat,
1167    },
1168
1169STEXI
1170@item x_colo_lost_heartbeat
1171@findex x_colo_lost_heartbeat
1172Tell COLO that heartbeat is lost, a failover or takeover is needed.
1173ETEXI
1174
1175    {
1176        .name       = "client_migrate_info",
1177        .args_type  = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1178        .params     = "protocol hostname port tls-port cert-subject",
1179        .help       = "set migration information for remote display",
1180        .cmd        = hmp_client_migrate_info,
1181    },
1182
1183STEXI
1184@item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
1185@findex client_migrate_info
1186Set migration information for remote display.  This makes the server
1187ask the client to automatically reconnect using the new parameters
1188once migration finished successfully.  Only implemented for SPICE.
1189ETEXI
1190
1191    {
1192        .name       = "dump-guest-memory",
1193        .args_type  = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1194        .params     = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
1195        .help       = "dump guest memory into file 'filename'.\n\t\t\t"
1196                      "-p: do paging to get guest's memory mapping.\n\t\t\t"
1197                      "-d: return immediately (do not wait for completion).\n\t\t\t"
1198                      "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1199                      "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1200                      "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1201                      "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1202                      "    for Windows x64 guests with vmcoreinfo driver only.\n\t\t\t"
1203                      "begin: the starting physical address.\n\t\t\t"
1204                      "length: the memory size, in bytes.",
1205        .cmd        = hmp_dump_guest_memory,
1206    },
1207
1208STEXI
1209@item dump-guest-memory [-p] @var{filename} @var{begin} @var{length}
1210@item dump-guest-memory [-z|-l|-s|-w] @var{filename}
1211@findex dump-guest-memory
1212Dump guest memory to @var{protocol}. The file can be processed with crash or
1213gdb. Without -z|-l|-s|-w, the dump format is ELF.
1214        -p: do paging to get guest's memory mapping.
1215        -z: dump in kdump-compressed format, with zlib compression.
1216        -l: dump in kdump-compressed format, with lzo compression.
1217        -s: dump in kdump-compressed format, with snappy compression.
1218        -w: dump in Windows crashdump format (can be used instead of ELF-dump converting),
1219            for Windows x64 guests with vmcoreinfo driver only
1220  filename: dump file name.
1221     begin: the starting physical address. It's optional, and should be
1222            specified together with length.
1223    length: the memory size, in bytes. It's optional, and should be specified
1224            together with begin.
1225ETEXI
1226
1227#if defined(TARGET_S390X)
1228    {
1229        .name       = "dump-skeys",
1230        .args_type  = "filename:F",
1231        .params     = "",
1232        .help       = "Save guest storage keys into file 'filename'.\n",
1233        .cmd        = hmp_dump_skeys,
1234    },
1235#endif
1236
1237STEXI
1238@item dump-skeys @var{filename}
1239@findex dump-skeys
1240Save guest storage keys to a file.
1241ETEXI
1242
1243#if defined(TARGET_S390X)
1244    {
1245        .name       = "migration_mode",
1246        .args_type  = "mode:i",
1247        .params     = "mode",
1248        .help       = "Enables or disables migration mode\n",
1249        .cmd        = hmp_migrationmode,
1250    },
1251#endif
1252
1253STEXI
1254@item migration_mode @var{mode}
1255@findex migration_mode
1256Enables or disables migration mode.
1257ETEXI
1258
1259    {
1260        .name       = "snapshot_blkdev",
1261        .args_type  = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1262        .params     = "[-n] device [new-image-file] [format]",
1263        .help       = "initiates a live snapshot\n\t\t\t"
1264                      "of device. If a new image file is specified, the\n\t\t\t"
1265                      "new image file will become the new root image.\n\t\t\t"
1266                      "If format is specified, the snapshot file will\n\t\t\t"
1267                      "be created in that format.\n\t\t\t"
1268                      "The default format is qcow2.  The -n flag requests QEMU\n\t\t\t"
1269                      "to reuse the image found in new-image-file, instead of\n\t\t\t"
1270                      "recreating it from scratch.",
1271        .cmd        = hmp_snapshot_blkdev,
1272    },
1273
1274STEXI
1275@item snapshot_blkdev
1276@findex snapshot_blkdev
1277Snapshot device, using snapshot file as target if provided
1278ETEXI
1279
1280    {
1281        .name       = "snapshot_blkdev_internal",
1282        .args_type  = "device:B,name:s",
1283        .params     = "device name",
1284        .help       = "take an internal snapshot of device.\n\t\t\t"
1285                      "The format of the image used by device must\n\t\t\t"
1286                      "support it, such as qcow2.\n\t\t\t",
1287        .cmd        = hmp_snapshot_blkdev_internal,
1288    },
1289
1290STEXI
1291@item snapshot_blkdev_internal
1292@findex snapshot_blkdev_internal
1293Take an internal snapshot on device if it support
1294ETEXI
1295
1296    {
1297        .name       = "snapshot_delete_blkdev_internal",
1298        .args_type  = "device:B,name:s,id:s?",
1299        .params     = "device name [id]",
1300        .help       = "delete an internal snapshot of device.\n\t\t\t"
1301                      "If id is specified, qemu will try delete\n\t\t\t"
1302                      "the snapshot matching both id and name.\n\t\t\t"
1303                      "The format of the image used by device must\n\t\t\t"
1304                      "support it, such as qcow2.\n\t\t\t",
1305        .cmd        = hmp_snapshot_delete_blkdev_internal,
1306    },
1307
1308STEXI
1309@item snapshot_delete_blkdev_internal
1310@findex snapshot_delete_blkdev_internal
1311Delete an internal snapshot on device if it support
1312ETEXI
1313
1314    {
1315        .name       = "drive_mirror",
1316        .args_type  = "reuse:-n,full:-f,device:B,target:s,format:s?",
1317        .params     = "[-n] [-f] device target [format]",
1318        .help       = "initiates live storage\n\t\t\t"
1319                      "migration for a device. The device's contents are\n\t\t\t"
1320                      "copied to the new image file, including data that\n\t\t\t"
1321                      "is written after the command is started.\n\t\t\t"
1322                      "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1323                      "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1324                      "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1325                      "so that the result does not need a backing file.\n\t\t\t",
1326        .cmd        = hmp_drive_mirror,
1327    },
1328STEXI
1329@item drive_mirror
1330@findex drive_mirror
1331Start mirroring a block device's writes to a new destination,
1332using the specified target.
1333ETEXI
1334
1335    {
1336        .name       = "drive_backup",
1337        .args_type  = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1338        .params     = "[-n] [-f] [-c] device target [format]",
1339        .help       = "initiates a point-in-time\n\t\t\t"
1340                      "copy for a device. The device's contents are\n\t\t\t"
1341                      "copied to the new image file, excluding data that\n\t\t\t"
1342                      "is written after the command is started.\n\t\t\t"
1343                      "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1344                      "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1345                      "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1346                      "so that the result does not need a backing file.\n\t\t\t"
1347                      "The -c flag requests QEMU to compress backup data\n\t\t\t"
1348                      "(if the target format supports it).\n\t\t\t",
1349        .cmd        = hmp_drive_backup,
1350    },
1351STEXI
1352@item drive_backup
1353@findex drive_backup
1354Start a point-in-time copy of a block device to a specificed target.
1355ETEXI
1356
1357    {
1358        .name       = "drive_add",
1359        .args_type  = "node:-n,pci_addr:s,opts:s",
1360        .params     = "[-n] [[<domain>:]<bus>:]<slot>\n"
1361                      "[file=file][,if=type][,bus=n]\n"
1362                      "[,unit=m][,media=d][,index=i]\n"
1363                      "[,snapshot=on|off][,cache=on|off]\n"
1364                      "[,readonly=on|off][,copy-on-read=on|off]",
1365        .help       = "add drive to PCI storage controller",
1366        .cmd        = hmp_drive_add,
1367    },
1368
1369STEXI
1370@item drive_add
1371@findex drive_add
1372Add drive to PCI storage controller.
1373ETEXI
1374
1375    {
1376        .name       = "pcie_aer_inject_error",
1377        .args_type  = "advisory_non_fatal:-a,correctable:-c,"
1378	              "id:s,error_status:s,"
1379	              "header0:i?,header1:i?,header2:i?,header3:i?,"
1380	              "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1381        .params     = "[-a] [-c] id "
1382                      "<error_status> [<tlp header> [<tlp header prefix>]]",
1383        .help       = "inject pcie aer error\n\t\t\t"
1384	              " -a for advisory non fatal error\n\t\t\t"
1385	              " -c for correctable error\n\t\t\t"
1386                      "<id> = qdev device id\n\t\t\t"
1387                      "<error_status> = error string or 32bit\n\t\t\t"
1388                      "<tlb header> = 32bit x 4\n\t\t\t"
1389                      "<tlb header prefix> = 32bit x 4",
1390        .cmd        = hmp_pcie_aer_inject_error,
1391    },
1392
1393STEXI
1394@item pcie_aer_inject_error
1395@findex pcie_aer_inject_error
1396Inject PCIe AER error
1397ETEXI
1398
1399    {
1400        .name       = "netdev_add",
1401        .args_type  = "netdev:O",
1402        .params     = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1403        .help       = "add host network device",
1404        .cmd        = hmp_netdev_add,
1405        .command_completion = netdev_add_completion,
1406    },
1407
1408STEXI
1409@item netdev_add
1410@findex netdev_add
1411Add host network device.
1412ETEXI
1413
1414    {
1415        .name       = "netdev_del",
1416        .args_type  = "id:s",
1417        .params     = "id",
1418        .help       = "remove host network device",
1419        .cmd        = hmp_netdev_del,
1420        .command_completion = netdev_del_completion,
1421    },
1422
1423STEXI
1424@item netdev_del
1425@findex netdev_del
1426Remove host network device.
1427ETEXI
1428
1429    {
1430        .name       = "object_add",
1431        .args_type  = "object:O",
1432        .params     = "[qom-type=]type,id=str[,prop=value][,...]",
1433        .help       = "create QOM object",
1434        .cmd        = hmp_object_add,
1435        .command_completion = object_add_completion,
1436    },
1437
1438STEXI
1439@item object_add
1440@findex object_add
1441Create QOM object.
1442ETEXI
1443
1444    {
1445        .name       = "object_del",
1446        .args_type  = "id:s",
1447        .params     = "id",
1448        .help       = "destroy QOM object",
1449        .cmd        = hmp_object_del,
1450        .command_completion = object_del_completion,
1451    },
1452
1453STEXI
1454@item object_del
1455@findex object_del
1456Destroy QOM object.
1457ETEXI
1458
1459#ifdef CONFIG_SLIRP
1460    {
1461        .name       = "hostfwd_add",
1462        .args_type  = "arg1:s,arg2:s?,arg3:s?",
1463        .params     = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1464        .help       = "redirect TCP or UDP connections from host to guest (requires -net user)",
1465        .cmd        = hmp_hostfwd_add,
1466    },
1467#endif
1468STEXI
1469@item hostfwd_add
1470@findex hostfwd_add
1471Redirect TCP or UDP connections from host to guest (requires -net user).
1472ETEXI
1473
1474#ifdef CONFIG_SLIRP
1475    {
1476        .name       = "hostfwd_remove",
1477        .args_type  = "arg1:s,arg2:s?,arg3:s?",
1478        .params     = "[hub_id name]|[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1479        .help       = "remove host-to-guest TCP or UDP redirection",
1480        .cmd        = hmp_hostfwd_remove,
1481    },
1482
1483#endif
1484STEXI
1485@item hostfwd_remove
1486@findex hostfwd_remove
1487Remove host-to-guest TCP or UDP redirection.
1488ETEXI
1489
1490    {
1491        .name       = "balloon",
1492        .args_type  = "value:M",
1493        .params     = "target",
1494        .help       = "request VM to change its memory allocation (in MB)",
1495        .cmd        = hmp_balloon,
1496    },
1497
1498STEXI
1499@item balloon @var{value}
1500@findex balloon
1501Request VM to change its memory allocation to @var{value} (in MB).
1502ETEXI
1503
1504    {
1505        .name       = "set_link",
1506        .args_type  = "name:s,up:b",
1507        .params     = "name on|off",
1508        .help       = "change the link status of a network adapter",
1509        .cmd        = hmp_set_link,
1510        .command_completion = set_link_completion,
1511    },
1512
1513STEXI
1514@item set_link @var{name} [on|off]
1515@findex set_link
1516Switch link @var{name} on (i.e. up) or off (i.e. down).
1517ETEXI
1518
1519    {
1520        .name       = "watchdog_action",
1521        .args_type  = "action:s",
1522        .params     = "[reset|shutdown|poweroff|pause|debug|none]",
1523        .help       = "change watchdog action",
1524        .cmd        = hmp_watchdog_action,
1525        .command_completion = watchdog_action_completion,
1526    },
1527
1528STEXI
1529@item watchdog_action
1530@findex watchdog_action
1531Change watchdog action.
1532ETEXI
1533
1534    {
1535        .name       = "acl_show",
1536        .args_type  = "aclname:s",
1537        .params     = "aclname",
1538        .help       = "list rules in the access control list",
1539        .cmd        = hmp_acl_show,
1540    },
1541
1542STEXI
1543@item acl_show @var{aclname}
1544@findex acl_show
1545List all the matching rules in the access control list, and the default
1546policy. There are currently two named access control lists,
1547@var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1548certificate distinguished name, and SASL username respectively.
1549ETEXI
1550
1551    {
1552        .name       = "acl_policy",
1553        .args_type  = "aclname:s,policy:s",
1554        .params     = "aclname allow|deny",
1555        .help       = "set default access control list policy",
1556        .cmd        = hmp_acl_policy,
1557    },
1558
1559STEXI
1560@item acl_policy @var{aclname} @code{allow|deny}
1561@findex acl_policy
1562Set the default access control list policy, used in the event that
1563none of the explicit rules match. The default policy at startup is
1564always @code{deny}.
1565ETEXI
1566
1567    {
1568        .name       = "acl_add",
1569        .args_type  = "aclname:s,match:s,policy:s,index:i?",
1570        .params     = "aclname match allow|deny [index]",
1571        .help       = "add a match rule to the access control list",
1572        .cmd        = hmp_acl_add,
1573    },
1574
1575STEXI
1576@item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1577@findex acl_add
1578Add a match rule to the access control list, allowing or denying access.
1579The match will normally be an exact username or x509 distinguished name,
1580but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1581allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1582normally be appended to the end of the ACL, but can be inserted
1583earlier in the list if the optional @var{index} parameter is supplied.
1584ETEXI
1585
1586    {
1587        .name       = "acl_remove",
1588        .args_type  = "aclname:s,match:s",
1589        .params     = "aclname match",
1590        .help       = "remove a match rule from the access control list",
1591        .cmd        = hmp_acl_remove,
1592    },
1593
1594STEXI
1595@item acl_remove @var{aclname} @var{match}
1596@findex acl_remove
1597Remove the specified match rule from the access control list.
1598ETEXI
1599
1600    {
1601        .name       = "acl_reset",
1602        .args_type  = "aclname:s",
1603        .params     = "aclname",
1604        .help       = "reset the access control list",
1605        .cmd        = hmp_acl_reset,
1606    },
1607
1608STEXI
1609@item acl_reset @var{aclname}
1610@findex acl_reset
1611Remove all matches from the access control list, and set the default
1612policy back to @code{deny}.
1613ETEXI
1614
1615    {
1616        .name       = "nbd_server_start",
1617        .args_type  = "all:-a,writable:-w,uri:s",
1618        .params     = "nbd_server_start [-a] [-w] host:port",
1619        .help       = "serve block devices on the given host and port",
1620        .cmd        = hmp_nbd_server_start,
1621    },
1622STEXI
1623@item nbd_server_start @var{host}:@var{port}
1624@findex nbd_server_start
1625Start an NBD server on the given host and/or port.  If the @option{-a}
1626option is included, all of the virtual machine's block devices that
1627have an inserted media on them are automatically exported; in this case,
1628the @option{-w} option makes the devices writable too.
1629ETEXI
1630
1631    {
1632        .name       = "nbd_server_add",
1633        .args_type  = "writable:-w,device:B,name:s?",
1634        .params     = "nbd_server_add [-w] device [name]",
1635        .help       = "export a block device via NBD",
1636        .cmd        = hmp_nbd_server_add,
1637    },
1638STEXI
1639@item nbd_server_add @var{device} [ @var{name} ]
1640@findex nbd_server_add
1641Export a block device through QEMU's NBD server, which must be started
1642beforehand with @command{nbd_server_start}.  The @option{-w} option makes the
1643exported device writable too.  The export name is controlled by @var{name},
1644defaulting to @var{device}.
1645ETEXI
1646
1647    {
1648        .name       = "nbd_server_remove",
1649        .args_type  = "force:-f,name:s",
1650        .params     = "nbd_server_remove [-f] name",
1651        .help       = "remove an export previously exposed via NBD",
1652        .cmd        = hmp_nbd_server_remove,
1653    },
1654STEXI
1655@item nbd_server_remove [-f] @var{name}
1656@findex nbd_server_remove
1657Stop exporting a block device through QEMU's NBD server, which was
1658previously started with @command{nbd_server_add}.  The @option{-f}
1659option forces the server to drop the export immediately even if
1660clients are connected; otherwise the command fails unless there are no
1661clients.
1662ETEXI
1663
1664    {
1665        .name       = "nbd_server_stop",
1666        .args_type  = "",
1667        .params     = "nbd_server_stop",
1668        .help       = "stop serving block devices using the NBD protocol",
1669        .cmd        = hmp_nbd_server_stop,
1670    },
1671STEXI
1672@item nbd_server_stop
1673@findex nbd_server_stop
1674Stop the QEMU embedded NBD server.
1675ETEXI
1676
1677
1678#if defined(TARGET_I386)
1679
1680    {
1681        .name       = "mce",
1682        .args_type  = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1683        .params     = "[-b] cpu bank status mcgstatus addr misc",
1684        .help       = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1685        .cmd        = hmp_mce,
1686    },
1687
1688#endif
1689STEXI
1690@item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1691@findex mce (x86)
1692Inject an MCE on the given CPU (x86 only).
1693ETEXI
1694
1695    {
1696        .name       = "getfd",
1697        .args_type  = "fdname:s",
1698        .params     = "getfd name",
1699        .help       = "receive a file descriptor via SCM rights and assign it a name",
1700        .cmd        = hmp_getfd,
1701    },
1702
1703STEXI
1704@item getfd @var{fdname}
1705@findex getfd
1706If a file descriptor is passed alongside this command using the SCM_RIGHTS
1707mechanism on unix sockets, it is stored using the name @var{fdname} for
1708later use by other monitor commands.
1709ETEXI
1710
1711    {
1712        .name       = "closefd",
1713        .args_type  = "fdname:s",
1714        .params     = "closefd name",
1715        .help       = "close a file descriptor previously passed via SCM rights",
1716        .cmd        = hmp_closefd,
1717    },
1718
1719STEXI
1720@item closefd @var{fdname}
1721@findex closefd
1722Close the file descriptor previously assigned to @var{fdname} using the
1723@code{getfd} command. This is only needed if the file descriptor was never
1724used by another monitor command.
1725ETEXI
1726
1727    {
1728        .name       = "block_passwd",
1729        .args_type  = "device:B,password:s",
1730        .params     = "block_passwd device password",
1731        .help       = "set the password of encrypted block devices",
1732        .cmd        = hmp_block_passwd,
1733    },
1734
1735STEXI
1736@item block_passwd @var{device} @var{password}
1737@findex block_passwd
1738Set the encrypted device @var{device} password to @var{password}
1739
1740This command is now obsolete and will always return an error since 2.10
1741ETEXI
1742
1743    {
1744        .name       = "block_set_io_throttle",
1745        .args_type  = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1746        .params     = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1747        .help       = "change I/O throttle limits for a block drive",
1748        .cmd        = hmp_block_set_io_throttle,
1749    },
1750
1751STEXI
1752@item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1753@findex block_set_io_throttle
1754Change 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}.
1755@var{device} can be a block device name, a qdev ID or a QOM path.
1756ETEXI
1757
1758    {
1759        .name       = "set_password",
1760        .args_type  = "protocol:s,password:s,connected:s?",
1761        .params     = "protocol password action-if-connected",
1762        .help       = "set spice/vnc password",
1763        .cmd        = hmp_set_password,
1764    },
1765
1766STEXI
1767@item set_password [ vnc | spice ] password [ action-if-connected ]
1768@findex set_password
1769Change spice/vnc password.  Use zero to make the password stay valid
1770forever.  @var{action-if-connected} specifies what should happen in
1771case a connection is established: @var{fail} makes the password change
1772fail.  @var{disconnect} changes the password and disconnects the
1773client.  @var{keep} changes the password and keeps the connection up.
1774@var{keep} is the default.
1775ETEXI
1776
1777    {
1778        .name       = "expire_password",
1779        .args_type  = "protocol:s,time:s",
1780        .params     = "protocol time",
1781        .help       = "set spice/vnc password expire-time",
1782        .cmd        = hmp_expire_password,
1783    },
1784
1785STEXI
1786@item expire_password [ vnc | spice ] expire-time
1787@findex expire_password
1788Specify when a password for spice/vnc becomes
1789invalid. @var{expire-time} accepts:
1790
1791@table @var
1792@item now
1793Invalidate password instantly.
1794
1795@item never
1796Password stays valid forever.
1797
1798@item +nsec
1799Password stays valid for @var{nsec} seconds starting now.
1800
1801@item nsec
1802Password is invalidated at the given time.  @var{nsec} are the seconds
1803passed since 1970, i.e. unix epoch.
1804
1805@end table
1806ETEXI
1807
1808    {
1809        .name       = "chardev-add",
1810        .args_type  = "args:s",
1811        .params     = "args",
1812        .help       = "add chardev",
1813        .cmd        = hmp_chardev_add,
1814        .command_completion = chardev_add_completion,
1815    },
1816
1817STEXI
1818@item chardev-add args
1819@findex chardev-add
1820chardev-add accepts the same parameters as the -chardev command line switch.
1821
1822ETEXI
1823
1824    {
1825        .name       = "chardev-change",
1826        .args_type  = "id:s,args:s",
1827        .params     = "id args",
1828        .help       = "change chardev",
1829        .cmd        = hmp_chardev_change,
1830    },
1831
1832STEXI
1833@item chardev-change args
1834@findex chardev-change
1835chardev-change accepts existing chardev @var{id} and then the same arguments
1836as the -chardev command line switch (except for "id").
1837
1838ETEXI
1839
1840    {
1841        .name       = "chardev-remove",
1842        .args_type  = "id:s",
1843        .params     = "id",
1844        .help       = "remove chardev",
1845        .cmd        = hmp_chardev_remove,
1846        .command_completion = chardev_remove_completion,
1847    },
1848
1849STEXI
1850@item chardev-remove id
1851@findex chardev-remove
1852Removes the chardev @var{id}.
1853
1854ETEXI
1855
1856    {
1857        .name       = "chardev-send-break",
1858        .args_type  = "id:s",
1859        .params     = "id",
1860        .help       = "send a break on chardev",
1861        .cmd        = hmp_chardev_send_break,
1862        .command_completion = chardev_remove_completion,
1863    },
1864
1865STEXI
1866@item chardev-send-break id
1867@findex chardev-send-break
1868Send a break on the chardev @var{id}.
1869
1870ETEXI
1871
1872    {
1873        .name       = "qemu-io",
1874        .args_type  = "device:B,command:s",
1875        .params     = "[device] \"[command]\"",
1876        .help       = "run a qemu-io command on a block device",
1877        .cmd        = hmp_qemu_io,
1878    },
1879
1880STEXI
1881@item qemu-io @var{device} @var{command}
1882@findex qemu-io
1883Executes a qemu-io command on the given block device.
1884
1885ETEXI
1886
1887    {
1888        .name       = "cpu-add",
1889        .args_type  = "id:i",
1890        .params     = "id",
1891        .help       = "add cpu (deprecated, use device_add instead)",
1892        .cmd        = hmp_cpu_add,
1893    },
1894
1895STEXI
1896@item cpu-add @var{id}
1897@findex cpu-add
1898Add CPU with id @var{id}.  This command is deprecated, please
1899+use @code{device_add} instead. For details, refer to
1900'docs/cpu-hotplug.rst'.
1901ETEXI
1902
1903    {
1904        .name       = "qom-list",
1905        .args_type  = "path:s?",
1906        .params     = "path",
1907        .help       = "list QOM properties",
1908        .cmd        = hmp_qom_list,
1909        .flags      = "p",
1910    },
1911
1912STEXI
1913@item qom-list [@var{path}]
1914Print QOM properties of object at location @var{path}
1915ETEXI
1916
1917    {
1918        .name       = "qom-set",
1919        .args_type  = "path:s,property:s,value:s",
1920        .params     = "path property value",
1921        .help       = "set QOM property",
1922        .cmd        = hmp_qom_set,
1923        .flags      = "p",
1924    },
1925
1926STEXI
1927@item qom-set @var{path} @var{property} @var{value}
1928Set QOM property @var{property} of object at location @var{path} to value @var{value}
1929ETEXI
1930
1931    {
1932        .name       = "info",
1933        .args_type  = "item:s?",
1934        .params     = "[subcommand]",
1935        .help       = "show various information about the system state",
1936        .cmd        = hmp_info_help,
1937        .sub_table  = hmp_info_cmds,
1938        .flags      = "p",
1939    },
1940
1941STEXI
1942@end table
1943ETEXI
1944