qmp: dump-guest-memory: don't spin if non-blocking fd would block
[qemu/ar7.git] / hmp-commands.hx
blobed67e997fd67ab54065e8fd572b866396a45fbdc
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
8 STEXI
9 @table @option
10 ETEXI
13 .name = "help|?",
14 .args_type = "name:s?",
15 .params = "[cmd]",
16 .help = "show the help",
17 .mhandler.cmd = do_help_cmd,
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
27 .name = "commit",
28 .args_type = "device:B",
29 .params = "device|all",
30 .help = "commit changes to the disk images (if -snapshot is used) or backing files",
31 .mhandler.cmd = do_commit,
34 STEXI
35 @item commit
36 @findex commit
37 Commit changes to the disk images (if -snapshot is used) or backing files.
38 ETEXI
41 .name = "q|quit",
42 .args_type = "",
43 .params = "",
44 .help = "quit the emulator",
45 .user_print = monitor_user_noop,
46 .mhandler.cmd = hmp_quit,
49 STEXI
50 @item q or quit
51 @findex quit
52 Quit the emulator.
53 ETEXI
56 .name = "block_resize",
57 .args_type = "device:B,size:o",
58 .params = "device size",
59 .help = "resize a block image",
60 .mhandler.cmd = hmp_block_resize,
63 STEXI
64 @item block_resize
65 @findex block_resize
66 Resize a block image while a guest is running. Usually requires guest
67 action to see the updated size. Resize to a lower size is supported,
68 but should be used with extreme caution. Note that this command only
69 resizes image files, it can not resize block devices like LVM volumes.
70 ETEXI
73 .name = "block_stream",
74 .args_type = "device:B,speed:o?,base:s?",
75 .params = "device [speed [base]]",
76 .help = "copy data from a backing file into a block device",
77 .mhandler.cmd = hmp_block_stream,
80 STEXI
81 @item block_stream
82 @findex block_stream
83 Copy data from a backing file into a block device.
84 ETEXI
87 .name = "block_job_set_speed",
88 .args_type = "device:B,speed:o",
89 .params = "device speed",
90 .help = "set maximum speed for a background block operation",
91 .mhandler.cmd = hmp_block_job_set_speed,
94 STEXI
95 @item block_job_set_speed
96 @findex block_job_set_speed
97 Set maximum speed for a background block operation.
98 ETEXI
101 .name = "block_job_cancel",
102 .args_type = "device:B",
103 .params = "device",
104 .help = "stop an active background block operation",
105 .mhandler.cmd = hmp_block_job_cancel,
108 STEXI
109 @item block_job_cancel
110 @findex block_job_cancel
111 Stop an active block streaming operation.
112 ETEXI
115 .name = "eject",
116 .args_type = "force:-f,device:B",
117 .params = "[-f] device",
118 .help = "eject a removable medium (use -f to force it)",
119 .mhandler.cmd = hmp_eject,
122 STEXI
123 @item eject [-f] @var{device}
124 @findex eject
125 Eject a removable medium (use -f to force it).
126 ETEXI
129 .name = "drive_del",
130 .args_type = "id:s",
131 .params = "device",
132 .help = "remove host block device",
133 .user_print = monitor_user_noop,
134 .mhandler.cmd_new = do_drive_del,
137 STEXI
138 @item drive_del @var{device}
139 @findex drive_del
140 Remove host block device. The result is that guest generated IO is no longer
141 submitted against the host device underlying the disk. Once a drive has
142 been deleted, the QEMU Block layer returns -EIO which results in IO
143 errors in the guest for applications that are reading/writing to the device.
144 ETEXI
147 .name = "change",
148 .args_type = "device:B,target:F,arg:s?",
149 .params = "device filename [format]",
150 .help = "change a removable medium, optional format",
151 .mhandler.cmd = hmp_change,
154 STEXI
155 @item change @var{device} @var{setting}
156 @findex change
158 Change the configuration of a device.
160 @table @option
161 @item change @var{diskdevice} @var{filename} [@var{format}]
162 Change the medium for a removable disk device to point to @var{filename}. eg
164 @example
165 (qemu) change ide1-cd0 /path/to/some.iso
166 @end example
168 @var{format} is optional.
170 @item change vnc @var{display},@var{options}
171 Change the configuration of the VNC server. The valid syntax for @var{display}
172 and @var{options} are described at @ref{sec_invocation}. eg
174 @example
175 (qemu) change vnc localhost:1
176 @end example
178 @item change vnc password [@var{password}]
180 Change the password associated with the VNC server. If the new password is not
181 supplied, the monitor will prompt for it to be entered. VNC passwords are only
182 significant up to 8 letters. eg
184 @example
185 (qemu) change vnc password
186 Password: ********
187 @end example
189 @end table
190 ETEXI
193 .name = "screendump",
194 .args_type = "filename:F",
195 .params = "filename",
196 .help = "save screen into PPM image 'filename'",
197 .mhandler.cmd = hmp_screen_dump,
200 STEXI
201 @item screendump @var{filename}
202 @findex screendump
203 Save screen into PPM image @var{filename}.
204 ETEXI
207 .name = "logfile",
208 .args_type = "filename:F",
209 .params = "filename",
210 .help = "output logs to 'filename'",
211 .mhandler.cmd = do_logfile,
214 STEXI
215 @item logfile @var{filename}
216 @findex logfile
217 Output logs to @var{filename}.
218 ETEXI
221 .name = "trace-event",
222 .args_type = "name:s,option:b",
223 .params = "name on|off",
224 .help = "changes status of a specific trace event",
225 .mhandler.cmd = do_trace_event_set_state,
228 STEXI
229 @item trace-event
230 @findex trace-event
231 changes status of a trace event
232 ETEXI
234 #if defined(CONFIG_TRACE_SIMPLE)
236 .name = "trace-file",
237 .args_type = "op:s?,arg:F?",
238 .params = "on|off|flush|set [arg]",
239 .help = "open, close, or flush trace file, or set a new file name",
240 .mhandler.cmd = do_trace_file,
243 STEXI
244 @item trace-file on|off|flush
245 @findex trace-file
246 Open, close, or flush the trace file. If no argument is given, the status of the trace file is displayed.
247 ETEXI
248 #endif
251 .name = "log",
252 .args_type = "items:s",
253 .params = "item1[,...]",
254 .help = "activate logging of the specified items to '/tmp/qemu.log'",
255 .mhandler.cmd = do_log,
258 STEXI
259 @item log @var{item1}[,...]
260 @findex log
261 Activate logging of the specified items to @file{/tmp/qemu.log}.
262 ETEXI
265 .name = "savevm",
266 .args_type = "name:s?",
267 .params = "[tag|id]",
268 .help = "save a VM snapshot. If no tag or id are provided, a new snapshot is created",
269 .mhandler.cmd = do_savevm,
272 STEXI
273 @item savevm [@var{tag}|@var{id}]
274 @findex savevm
275 Create a snapshot of the whole virtual machine. If @var{tag} is
276 provided, it is used as human readable identifier. If there is already
277 a snapshot with the same tag or ID, it is replaced. More info at
278 @ref{vm_snapshots}.
279 ETEXI
282 .name = "loadvm",
283 .args_type = "name:s",
284 .params = "tag|id",
285 .help = "restore a VM snapshot from its tag or id",
286 .mhandler.cmd = do_loadvm,
289 STEXI
290 @item loadvm @var{tag}|@var{id}
291 @findex loadvm
292 Set the whole virtual machine to the snapshot identified by the tag
293 @var{tag} or the unique snapshot ID @var{id}.
294 ETEXI
297 .name = "delvm",
298 .args_type = "name:s",
299 .params = "tag|id",
300 .help = "delete a VM snapshot from its tag or id",
301 .mhandler.cmd = do_delvm,
304 STEXI
305 @item delvm @var{tag}|@var{id}
306 @findex delvm
307 Delete the snapshot identified by @var{tag} or @var{id}.
308 ETEXI
311 .name = "singlestep",
312 .args_type = "option:s?",
313 .params = "[on|off]",
314 .help = "run emulation in singlestep mode or switch to normal mode",
315 .mhandler.cmd = do_singlestep,
318 STEXI
319 @item singlestep [off]
320 @findex singlestep
321 Run the emulation in single step mode.
322 If called with option off, the emulation returns to normal mode.
323 ETEXI
326 .name = "stop",
327 .args_type = "",
328 .params = "",
329 .help = "stop emulation",
330 .mhandler.cmd = hmp_stop,
333 STEXI
334 @item stop
335 @findex stop
336 Stop emulation.
337 ETEXI
340 .name = "c|cont",
341 .args_type = "",
342 .params = "",
343 .help = "resume emulation",
344 .mhandler.cmd = hmp_cont,
347 STEXI
348 @item c or cont
349 @findex cont
350 Resume emulation.
351 ETEXI
354 .name = "system_wakeup",
355 .args_type = "",
356 .params = "",
357 .help = "wakeup guest from suspend",
358 .mhandler.cmd = hmp_system_wakeup,
361 STEXI
362 @item system_wakeup
363 @findex system_wakeup
364 Wakeup guest from suspend.
365 ETEXI
368 .name = "gdbserver",
369 .args_type = "device:s?",
370 .params = "[device]",
371 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
372 .mhandler.cmd = do_gdbserver,
375 STEXI
376 @item gdbserver [@var{port}]
377 @findex gdbserver
378 Start gdbserver session (default @var{port}=1234)
379 ETEXI
382 .name = "x",
383 .args_type = "fmt:/,addr:l",
384 .params = "/fmt addr",
385 .help = "virtual memory dump starting at 'addr'",
386 .mhandler.cmd = do_memory_dump,
389 STEXI
390 @item x/fmt @var{addr}
391 @findex x
392 Virtual memory dump starting at @var{addr}.
393 ETEXI
396 .name = "xp",
397 .args_type = "fmt:/,addr:l",
398 .params = "/fmt addr",
399 .help = "physical memory dump starting at 'addr'",
400 .mhandler.cmd = do_physical_memory_dump,
403 STEXI
404 @item xp /@var{fmt} @var{addr}
405 @findex xp
406 Physical memory dump starting at @var{addr}.
408 @var{fmt} is a format which tells the command how to format the
409 data. Its syntax is: @option{/@{count@}@{format@}@{size@}}
411 @table @var
412 @item count
413 is the number of items to be dumped.
415 @item format
416 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
417 c (char) or i (asm instruction).
419 @item size
420 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
421 @code{h} or @code{w} can be specified with the @code{i} format to
422 respectively select 16 or 32 bit code instruction size.
424 @end table
426 Examples:
427 @itemize
428 @item
429 Dump 10 instructions at the current instruction pointer:
430 @example
431 (qemu) x/10i $eip
432 0x90107063: ret
433 0x90107064: sti
434 0x90107065: lea 0x0(%esi,1),%esi
435 0x90107069: lea 0x0(%edi,1),%edi
436 0x90107070: ret
437 0x90107071: jmp 0x90107080
438 0x90107073: nop
439 0x90107074: nop
440 0x90107075: nop
441 0x90107076: nop
442 @end example
444 @item
445 Dump 80 16 bit values at the start of the video memory.
446 @smallexample
447 (qemu) xp/80hx 0xb8000
448 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
449 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
450 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
451 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
452 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
453 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
454 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
455 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
456 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
457 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
458 @end smallexample
459 @end itemize
460 ETEXI
463 .name = "p|print",
464 .args_type = "fmt:/,val:l",
465 .params = "/fmt expr",
466 .help = "print expression value (use $reg for CPU register access)",
467 .mhandler.cmd = do_print,
470 STEXI
471 @item p or print/@var{fmt} @var{expr}
472 @findex print
474 Print expression value. Only the @var{format} part of @var{fmt} is
475 used.
476 ETEXI
479 .name = "i",
480 .args_type = "fmt:/,addr:i,index:i.",
481 .params = "/fmt addr",
482 .help = "I/O port read",
483 .mhandler.cmd = do_ioport_read,
486 STEXI
487 Read I/O port.
488 ETEXI
491 .name = "o",
492 .args_type = "fmt:/,addr:i,val:i",
493 .params = "/fmt addr value",
494 .help = "I/O port write",
495 .mhandler.cmd = do_ioport_write,
498 STEXI
499 Write to I/O port.
500 ETEXI
503 .name = "sendkey",
504 .args_type = "keys:s,hold-time:i?",
505 .params = "keys [hold_ms]",
506 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
507 .mhandler.cmd = hmp_send_key,
510 STEXI
511 @item sendkey @var{keys}
512 @findex sendkey
514 Send @var{keys} to the guest. @var{keys} could be the name of the
515 key or the raw value in hexadecimal format. Use @code{-} to press
516 several keys simultaneously. Example:
517 @example
518 sendkey ctrl-alt-f1
519 @end example
521 This command is useful to send keys that your graphical user interface
522 intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
523 ETEXI
526 .name = "system_reset",
527 .args_type = "",
528 .params = "",
529 .help = "reset the system",
530 .mhandler.cmd = hmp_system_reset,
533 STEXI
534 @item system_reset
535 @findex system_reset
537 Reset the system.
538 ETEXI
541 .name = "system_powerdown",
542 .args_type = "",
543 .params = "",
544 .help = "send system power down event",
545 .mhandler.cmd = hmp_system_powerdown,
548 STEXI
549 @item system_powerdown
550 @findex system_powerdown
552 Power down the system (if supported).
553 ETEXI
556 .name = "sum",
557 .args_type = "start:i,size:i",
558 .params = "addr size",
559 .help = "compute the checksum of a memory region",
560 .mhandler.cmd = do_sum,
563 STEXI
564 @item sum @var{addr} @var{size}
565 @findex sum
567 Compute the checksum of a memory region.
568 ETEXI
571 .name = "usb_add",
572 .args_type = "devname:s",
573 .params = "device",
574 .help = "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')",
575 .mhandler.cmd = do_usb_add,
578 STEXI
579 @item usb_add @var{devname}
580 @findex usb_add
582 Add the USB device @var{devname}. For details of available devices see
583 @ref{usb_devices}
584 ETEXI
587 .name = "usb_del",
588 .args_type = "devname:s",
589 .params = "device",
590 .help = "remove USB device 'bus.addr'",
591 .mhandler.cmd = do_usb_del,
594 STEXI
595 @item usb_del @var{devname}
596 @findex usb_del
598 Remove the USB device @var{devname} from the QEMU virtual USB
599 hub. @var{devname} has the syntax @code{bus.addr}. Use the monitor
600 command @code{info usb} to see the devices you can remove.
601 ETEXI
604 .name = "device_add",
605 .args_type = "device:O",
606 .params = "driver[,prop=value][,...]",
607 .help = "add device, like -device on the command line",
608 .user_print = monitor_user_noop,
609 .mhandler.cmd_new = do_device_add,
612 STEXI
613 @item device_add @var{config}
614 @findex device_add
616 Add device.
617 ETEXI
620 .name = "device_del",
621 .args_type = "id:s",
622 .params = "device",
623 .help = "remove device",
624 .mhandler.cmd = hmp_device_del,
627 STEXI
628 @item device_del @var{id}
629 @findex device_del
631 Remove device @var{id}.
632 ETEXI
635 .name = "cpu",
636 .args_type = "index:i",
637 .params = "index",
638 .help = "set the default CPU",
639 .mhandler.cmd = hmp_cpu,
642 STEXI
643 @item cpu @var{index}
644 @findex cpu
645 Set the default CPU.
646 ETEXI
649 .name = "mouse_move",
650 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
651 .params = "dx dy [dz]",
652 .help = "send mouse move events",
653 .mhandler.cmd = do_mouse_move,
656 STEXI
657 @item mouse_move @var{dx} @var{dy} [@var{dz}]
658 @findex mouse_move
659 Move the active mouse to the specified coordinates @var{dx} @var{dy}
660 with optional scroll axis @var{dz}.
661 ETEXI
664 .name = "mouse_button",
665 .args_type = "button_state:i",
666 .params = "state",
667 .help = "change mouse button state (1=L, 2=M, 4=R)",
668 .mhandler.cmd = do_mouse_button,
671 STEXI
672 @item mouse_button @var{val}
673 @findex mouse_button
674 Change the active mouse button state @var{val} (1=L, 2=M, 4=R).
675 ETEXI
678 .name = "mouse_set",
679 .args_type = "index:i",
680 .params = "index",
681 .help = "set which mouse device receives events",
682 .mhandler.cmd = do_mouse_set,
685 STEXI
686 @item mouse_set @var{index}
687 @findex mouse_set
688 Set which mouse device receives events at given @var{index}, index
689 can be obtained with
690 @example
691 info mice
692 @end example
693 ETEXI
695 #ifdef HAS_AUDIO
697 .name = "wavcapture",
698 .args_type = "path:F,freq:i?,bits:i?,nchannels:i?",
699 .params = "path [frequency [bits [channels]]]",
700 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
701 .mhandler.cmd = do_wav_capture,
703 #endif
704 STEXI
705 @item wavcapture @var{filename} [@var{frequency} [@var{bits} [@var{channels}]]]
706 @findex wavcapture
707 Capture audio into @var{filename}. Using sample rate @var{frequency}
708 bits per sample @var{bits} and number of channels @var{channels}.
710 Defaults:
711 @itemize @minus
712 @item Sample rate = 44100 Hz - CD quality
713 @item Bits = 16
714 @item Number of channels = 2 - Stereo
715 @end itemize
716 ETEXI
718 #ifdef HAS_AUDIO
720 .name = "stopcapture",
721 .args_type = "n:i",
722 .params = "capture index",
723 .help = "stop capture",
724 .mhandler.cmd = do_stop_capture,
726 #endif
727 STEXI
728 @item stopcapture @var{index}
729 @findex stopcapture
730 Stop capture with a given @var{index}, index can be obtained with
731 @example
732 info capture
733 @end example
734 ETEXI
737 .name = "memsave",
738 .args_type = "val:l,size:i,filename:s",
739 .params = "addr size file",
740 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
741 .mhandler.cmd = hmp_memsave,
744 STEXI
745 @item memsave @var{addr} @var{size} @var{file}
746 @findex memsave
747 save to disk virtual memory dump starting at @var{addr} of size @var{size}.
748 ETEXI
751 .name = "pmemsave",
752 .args_type = "val:l,size:i,filename:s",
753 .params = "addr size file",
754 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
755 .mhandler.cmd = hmp_pmemsave,
758 STEXI
759 @item pmemsave @var{addr} @var{size} @var{file}
760 @findex pmemsave
761 save to disk physical memory dump starting at @var{addr} of size @var{size}.
762 ETEXI
765 .name = "boot_set",
766 .args_type = "bootdevice:s",
767 .params = "bootdevice",
768 .help = "define new values for the boot device list",
769 .mhandler.cmd = do_boot_set,
772 STEXI
773 @item boot_set @var{bootdevicelist}
774 @findex boot_set
776 Define new values for the boot device list. Those values will override
777 the values specified on the command line through the @code{-boot} option.
779 The values that can be specified here depend on the machine type, but are
780 the same that can be specified in the @code{-boot} command line option.
781 ETEXI
783 #if defined(TARGET_I386)
785 .name = "nmi",
786 .args_type = "",
787 .params = "",
788 .help = "inject an NMI on all guest's CPUs",
789 .mhandler.cmd = hmp_inject_nmi,
791 #endif
792 STEXI
793 @item nmi @var{cpu}
794 @findex nmi
795 Inject an NMI on the given CPU (x86 only).
796 ETEXI
799 .name = "migrate",
800 .args_type = "detach:-d,blk:-b,inc:-i,uri:s",
801 .params = "[-d] [-b] [-i] uri",
802 .help = "migrate to URI (using -d to not wait for completion)"
803 "\n\t\t\t -b for migration without shared storage with"
804 " full copy of disk\n\t\t\t -i for migration without "
805 "shared storage with incremental copy of disk "
806 "(base image shared between src and destination)",
807 .mhandler.cmd = hmp_migrate,
811 STEXI
812 @item migrate [-d] [-b] [-i] @var{uri}
813 @findex migrate
814 Migrate to @var{uri} (using -d to not wait for completion).
815 -b for migration with full copy of disk
816 -i for migration with incremental copy of disk (base image is shared)
817 ETEXI
820 .name = "migrate_cancel",
821 .args_type = "",
822 .params = "",
823 .help = "cancel the current VM migration",
824 .mhandler.cmd = hmp_migrate_cancel,
827 STEXI
828 @item migrate_cancel
829 @findex migrate_cancel
830 Cancel the current VM migration.
832 ETEXI
835 .name = "migrate_set_cache_size",
836 .args_type = "value:o",
837 .params = "value",
838 .help = "set cache size (in bytes) for XBZRLE migrations,"
839 "the cache size will be rounded down to the nearest "
840 "power of 2.\n"
841 "The cache size affects the number of cache misses."
842 "In case of a high cache miss ratio you need to increase"
843 " the cache size",
844 .mhandler.cmd = hmp_migrate_set_cache_size,
847 STEXI
848 @item migrate_set_cache_size @var{value}
849 @findex migrate_set_cache_size
850 Set cache size to @var{value} (in bytes) for xbzrle migrations.
851 ETEXI
854 .name = "migrate_set_speed",
855 .args_type = "value:o",
856 .params = "value",
857 .help = "set maximum speed (in bytes) for migrations. "
858 "Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
859 .mhandler.cmd = hmp_migrate_set_speed,
862 STEXI
863 @item migrate_set_speed @var{value}
864 @findex migrate_set_speed
865 Set maximum speed to @var{value} (in bytes) for migrations.
866 ETEXI
869 .name = "migrate_set_downtime",
870 .args_type = "value:T",
871 .params = "value",
872 .help = "set maximum tolerated downtime (in seconds) for migrations",
873 .mhandler.cmd = hmp_migrate_set_downtime,
876 STEXI
877 @item migrate_set_downtime @var{second}
878 @findex migrate_set_downtime
879 Set maximum tolerated downtime (in seconds) for migration.
880 ETEXI
883 .name = "migrate_set_capability",
884 .args_type = "capability:s,state:b",
885 .params = "capability state",
886 .help = "Enable/Disable the usage of a capability for migration",
887 .mhandler.cmd = hmp_migrate_set_capability,
890 STEXI
891 @item migrate_set_capability @var{capability} @var{state}
892 @findex migrate_set_capability
893 Enable/Disable the usage of a capability @var{capability} for migration.
894 ETEXI
897 .name = "client_migrate_info",
898 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
899 .params = "protocol hostname port tls-port cert-subject",
900 .help = "send migration info to spice/vnc client",
901 .user_print = monitor_user_noop,
902 .mhandler.cmd_async = client_migrate_info,
903 .flags = MONITOR_CMD_ASYNC,
906 STEXI
907 @item client_migrate_info @var{protocol} @var{hostname} @var{port} @var{tls-port} @var{cert-subject}
908 @findex client_migrate_info
909 Set the spice/vnc connection info for the migration target. The spice/vnc
910 server will ask the spice/vnc client to automatically reconnect using the
911 new parameters (if specified) once the vm migration finished successfully.
912 ETEXI
914 #if defined(CONFIG_HAVE_CORE_DUMP)
916 .name = "dump-guest-memory",
917 .args_type = "paging:-p,protocol:s,begin:i?,length:i?",
918 .params = "[-p] protocol [begin] [length]",
919 .help = "dump guest memory to file"
920 "\n\t\t\t begin(optional): the starting physical address"
921 "\n\t\t\t length(optional): the memory size, in bytes",
922 .user_print = monitor_user_noop,
923 .mhandler.cmd = hmp_dump_guest_memory,
927 STEXI
928 @item dump-guest-memory [-p] @var{protocol} @var{begin} @var{length}
929 @findex dump-guest-memory
930 Dump guest memory to @var{protocol}. The file can be processed with crash or
931 gdb.
932 protocol: destination file(started with "file:") or destination file
933 descriptor (started with "fd:")
934 paging: do paging to get guest's memory mapping
935 begin: the starting physical address. It's optional, and should be
936 specified with length together.
937 length: the memory size, in bytes. It's optional, and should be specified
938 with begin together.
939 ETEXI
940 #endif
943 .name = "snapshot_blkdev",
944 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
945 .params = "[-n] device [new-image-file] [format]",
946 .help = "initiates a live snapshot\n\t\t\t"
947 "of device. If a new image file is specified, the\n\t\t\t"
948 "new image file will become the new root image.\n\t\t\t"
949 "If format is specified, the snapshot file will\n\t\t\t"
950 "be created in that format. Otherwise the\n\t\t\t"
951 "snapshot will be internal! (currently unsupported).\n\t\t\t"
952 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
953 "to reuse the image found in new-image-file, instead of\n\t\t\t"
954 "recreating it from scratch.",
955 .mhandler.cmd = hmp_snapshot_blkdev,
958 STEXI
959 @item snapshot_blkdev
960 @findex snapshot_blkdev
961 Snapshot device, using snapshot file as target if provided
962 ETEXI
965 .name = "drive_add",
966 .args_type = "pci_addr:s,opts:s",
967 .params = "[[<domain>:]<bus>:]<slot>\n"
968 "[file=file][,if=type][,bus=n]\n"
969 "[,unit=m][,media=d][,index=i]\n"
970 "[,cyls=c,heads=h,secs=s[,trans=t]]\n"
971 "[,snapshot=on|off][,cache=on|off]\n"
972 "[,readonly=on|off][,copy-on-read=on|off]",
973 .help = "add drive to PCI storage controller",
974 .mhandler.cmd = drive_hot_add,
977 STEXI
978 @item drive_add
979 @findex drive_add
980 Add drive to PCI storage controller.
981 ETEXI
983 #if defined(TARGET_I386)
985 .name = "pci_add",
986 .args_type = "pci_addr:s,type:s,opts:s?",
987 .params = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...",
988 .help = "hot-add PCI device",
989 .mhandler.cmd = pci_device_hot_add,
991 #endif
993 STEXI
994 @item pci_add
995 @findex pci_add
996 Hot-add PCI device.
997 ETEXI
999 #if defined(TARGET_I386)
1001 .name = "pci_del",
1002 .args_type = "pci_addr:s",
1003 .params = "[[<domain>:]<bus>:]<slot>",
1004 .help = "hot remove PCI device",
1005 .mhandler.cmd = do_pci_device_hot_remove,
1007 #endif
1009 STEXI
1010 @item pci_del
1011 @findex pci_del
1012 Hot remove PCI device.
1013 ETEXI
1016 .name = "pcie_aer_inject_error",
1017 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1018 "id:s,error_status:s,"
1019 "header0:i?,header1:i?,header2:i?,header3:i?,"
1020 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1021 .params = "[-a] [-c] id "
1022 "<error_status> [<tlp header> [<tlp header prefix>]]",
1023 .help = "inject pcie aer error\n\t\t\t"
1024 " -a for advisory non fatal error\n\t\t\t"
1025 " -c for correctable error\n\t\t\t"
1026 "<id> = qdev device id\n\t\t\t"
1027 "<error_status> = error string or 32bit\n\t\t\t"
1028 "<tlb header> = 32bit x 4\n\t\t\t"
1029 "<tlb header prefix> = 32bit x 4",
1030 .user_print = pcie_aer_inject_error_print,
1031 .mhandler.cmd_new = do_pcie_aer_inject_error,
1034 STEXI
1035 @item pcie_aer_inject_error
1036 @findex pcie_aer_inject_error
1037 Inject PCIe AER error
1038 ETEXI
1041 .name = "host_net_add",
1042 .args_type = "device:s,opts:s?",
1043 .params = "tap|user|socket|vde|dump [options]",
1044 .help = "add host VLAN client",
1045 .mhandler.cmd = net_host_device_add,
1048 STEXI
1049 @item host_net_add
1050 @findex host_net_add
1051 Add host VLAN client.
1052 ETEXI
1055 .name = "host_net_remove",
1056 .args_type = "vlan_id:i,device:s",
1057 .params = "vlan_id name",
1058 .help = "remove host VLAN client",
1059 .mhandler.cmd = net_host_device_remove,
1062 STEXI
1063 @item host_net_remove
1064 @findex host_net_remove
1065 Remove host VLAN client.
1066 ETEXI
1069 .name = "netdev_add",
1070 .args_type = "netdev:O",
1071 .params = "[user|tap|socket],id=str[,prop=value][,...]",
1072 .help = "add host network device",
1073 .mhandler.cmd = hmp_netdev_add,
1076 STEXI
1077 @item netdev_add
1078 @findex netdev_add
1079 Add host network device.
1080 ETEXI
1083 .name = "netdev_del",
1084 .args_type = "id:s",
1085 .params = "id",
1086 .help = "remove host network device",
1087 .mhandler.cmd = hmp_netdev_del,
1090 STEXI
1091 @item netdev_del
1092 @findex netdev_del
1093 Remove host network device.
1094 ETEXI
1096 #ifdef CONFIG_SLIRP
1098 .name = "hostfwd_add",
1099 .args_type = "arg1:s,arg2:s?,arg3:s?",
1100 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1101 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1102 .mhandler.cmd = net_slirp_hostfwd_add,
1104 #endif
1105 STEXI
1106 @item hostfwd_add
1107 @findex hostfwd_add
1108 Redirect TCP or UDP connections from host to guest (requires -net user).
1109 ETEXI
1111 #ifdef CONFIG_SLIRP
1113 .name = "hostfwd_remove",
1114 .args_type = "arg1:s,arg2:s?,arg3:s?",
1115 .params = "[vlan_id name] [tcp|udp]:[hostaddr]:hostport",
1116 .help = "remove host-to-guest TCP or UDP redirection",
1117 .mhandler.cmd = net_slirp_hostfwd_remove,
1120 #endif
1121 STEXI
1122 @item hostfwd_remove
1123 @findex hostfwd_remove
1124 Remove host-to-guest TCP or UDP redirection.
1125 ETEXI
1128 .name = "balloon",
1129 .args_type = "value:M",
1130 .params = "target",
1131 .help = "request VM to change its memory allocation (in MB)",
1132 .mhandler.cmd = hmp_balloon,
1135 STEXI
1136 @item balloon @var{value}
1137 @findex balloon
1138 Request VM to change its memory allocation to @var{value} (in MB).
1139 ETEXI
1142 .name = "set_link",
1143 .args_type = "name:s,up:b",
1144 .params = "name on|off",
1145 .help = "change the link status of a network adapter",
1146 .mhandler.cmd = hmp_set_link,
1149 STEXI
1150 @item set_link @var{name} [on|off]
1151 @findex set_link
1152 Switch link @var{name} on (i.e. up) or off (i.e. down).
1153 ETEXI
1156 .name = "watchdog_action",
1157 .args_type = "action:s",
1158 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1159 .help = "change watchdog action",
1160 .mhandler.cmd = do_watchdog_action,
1163 STEXI
1164 @item watchdog_action
1165 @findex watchdog_action
1166 Change watchdog action.
1167 ETEXI
1170 .name = "acl_show",
1171 .args_type = "aclname:s",
1172 .params = "aclname",
1173 .help = "list rules in the access control list",
1174 .mhandler.cmd = do_acl_show,
1177 STEXI
1178 @item acl_show @var{aclname}
1179 @findex acl_show
1180 List all the matching rules in the access control list, and the default
1181 policy. There are currently two named access control lists,
1182 @var{vnc.x509dname} and @var{vnc.username} matching on the x509 client
1183 certificate distinguished name, and SASL username respectively.
1184 ETEXI
1187 .name = "acl_policy",
1188 .args_type = "aclname:s,policy:s",
1189 .params = "aclname allow|deny",
1190 .help = "set default access control list policy",
1191 .mhandler.cmd = do_acl_policy,
1194 STEXI
1195 @item acl_policy @var{aclname} @code{allow|deny}
1196 @findex acl_policy
1197 Set the default access control list policy, used in the event that
1198 none of the explicit rules match. The default policy at startup is
1199 always @code{deny}.
1200 ETEXI
1203 .name = "acl_add",
1204 .args_type = "aclname:s,match:s,policy:s,index:i?",
1205 .params = "aclname match allow|deny [index]",
1206 .help = "add a match rule to the access control list",
1207 .mhandler.cmd = do_acl_add,
1210 STEXI
1211 @item acl_add @var{aclname} @var{match} @code{allow|deny} [@var{index}]
1212 @findex acl_add
1213 Add a match rule to the access control list, allowing or denying access.
1214 The match will normally be an exact username or x509 distinguished name,
1215 but can optionally include wildcard globs. eg @code{*@@EXAMPLE.COM} to
1216 allow all users in the @code{EXAMPLE.COM} kerberos realm. The match will
1217 normally be appended to the end of the ACL, but can be inserted
1218 earlier in the list if the optional @var{index} parameter is supplied.
1219 ETEXI
1222 .name = "acl_remove",
1223 .args_type = "aclname:s,match:s",
1224 .params = "aclname match",
1225 .help = "remove a match rule from the access control list",
1226 .mhandler.cmd = do_acl_remove,
1229 STEXI
1230 @item acl_remove @var{aclname} @var{match}
1231 @findex acl_remove
1232 Remove the specified match rule from the access control list.
1233 ETEXI
1236 .name = "acl_reset",
1237 .args_type = "aclname:s",
1238 .params = "aclname",
1239 .help = "reset the access control list",
1240 .mhandler.cmd = do_acl_reset,
1243 STEXI
1244 @item acl_reset @var{aclname}
1245 @findex acl_reset
1246 Remove all matches from the access control list, and set the default
1247 policy back to @code{deny}.
1248 ETEXI
1250 #if defined(TARGET_I386)
1253 .name = "mce",
1254 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1255 .params = "[-b] cpu bank status mcgstatus addr misc",
1256 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1257 .mhandler.cmd = do_inject_mce,
1260 #endif
1261 STEXI
1262 @item mce @var{cpu} @var{bank} @var{status} @var{mcgstatus} @var{addr} @var{misc}
1263 @findex mce (x86)
1264 Inject an MCE on the given CPU (x86 only).
1265 ETEXI
1268 .name = "getfd",
1269 .args_type = "fdname:s",
1270 .params = "getfd name",
1271 .help = "receive a file descriptor via SCM rights and assign it a name",
1272 .mhandler.cmd = hmp_getfd,
1275 STEXI
1276 @item getfd @var{fdname}
1277 @findex getfd
1278 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1279 mechanism on unix sockets, it is stored using the name @var{fdname} for
1280 later use by other monitor commands.
1281 ETEXI
1284 .name = "closefd",
1285 .args_type = "fdname:s",
1286 .params = "closefd name",
1287 .help = "close a file descriptor previously passed via SCM rights",
1288 .mhandler.cmd = hmp_closefd,
1291 STEXI
1292 @item closefd @var{fdname}
1293 @findex closefd
1294 Close the file descriptor previously assigned to @var{fdname} using the
1295 @code{getfd} command. This is only needed if the file descriptor was never
1296 used by another monitor command.
1297 ETEXI
1300 .name = "block_passwd",
1301 .args_type = "device:B,password:s",
1302 .params = "block_passwd device password",
1303 .help = "set the password of encrypted block devices",
1304 .mhandler.cmd = hmp_block_passwd,
1307 STEXI
1308 @item block_set_io_throttle @var{device} @var{bps} @var{bps_rd} @var{bps_wr} @var{iops} @var{iops_rd} @var{iops_wr}
1309 @findex block_set_io_throttle
1310 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}
1311 ETEXI
1314 .name = "block_set_io_throttle",
1315 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1316 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1317 .help = "change I/O throttle limits for a block drive",
1318 .mhandler.cmd = hmp_block_set_io_throttle,
1321 STEXI
1322 @item block_passwd @var{device} @var{password}
1323 @findex block_passwd
1324 Set the encrypted device @var{device} password to @var{password}
1325 ETEXI
1328 .name = "set_password",
1329 .args_type = "protocol:s,password:s,connected:s?",
1330 .params = "protocol password action-if-connected",
1331 .help = "set spice/vnc password",
1332 .mhandler.cmd = hmp_set_password,
1335 STEXI
1336 @item set_password [ vnc | spice ] password [ action-if-connected ]
1337 @findex set_password
1339 Change spice/vnc password. Use zero to make the password stay valid
1340 forever. @var{action-if-connected} specifies what should happen in
1341 case a connection is established: @var{fail} makes the password change
1342 fail. @var{disconnect} changes the password and disconnects the
1343 client. @var{keep} changes the password and keeps the connection up.
1344 @var{keep} is the default.
1345 ETEXI
1348 .name = "expire_password",
1349 .args_type = "protocol:s,time:s",
1350 .params = "protocol time",
1351 .help = "set spice/vnc password expire-time",
1352 .mhandler.cmd = hmp_expire_password,
1355 STEXI
1356 @item expire_password [ vnc | spice ] expire-time
1357 @findex expire_password
1359 Specify when a password for spice/vnc becomes
1360 invalid. @var{expire-time} accepts:
1362 @table @var
1363 @item now
1364 Invalidate password instantly.
1366 @item never
1367 Password stays valid forever.
1369 @item +nsec
1370 Password stays valid for @var{nsec} seconds starting now.
1372 @item nsec
1373 Password is invalidated at the given time. @var{nsec} are the seconds
1374 passed since 1970, i.e. unix epoch.
1376 @end table
1377 ETEXI
1380 .name = "info",
1381 .args_type = "item:s?",
1382 .params = "[subcommand]",
1383 .help = "show various information about the system state",
1384 .mhandler.cmd = do_info,
1387 STEXI
1388 @item info @var{subcommand}
1389 @findex info
1390 Show various information about the system state.
1392 @table @option
1393 @item info version
1394 show the version of QEMU
1395 @item info network
1396 show the various VLANs and the associated devices
1397 @item info chardev
1398 show the character devices
1399 @item info block
1400 show the block devices
1401 @item info blockstats
1402 show block device statistics
1403 @item info registers
1404 show the cpu registers
1405 @item info cpus
1406 show infos for each CPU
1407 @item info history
1408 show the command line history
1409 @item info irq
1410 show the interrupts statistics (if available)
1411 @item info pic
1412 show i8259 (PIC) state
1413 @item info pci
1414 show emulated PCI device info
1415 @item info tlb
1416 show virtual to physical memory mappings (i386, SH4, SPARC, PPC, and Xtensa only)
1417 @item info mem
1418 show the active virtual memory mappings (i386 only)
1419 @item info jit
1420 show dynamic compiler info
1421 @item info numa
1422 show NUMA information
1423 @item info kvm
1424 show KVM information
1425 @item info usb
1426 show USB devices plugged on the virtual USB hub
1427 @item info usbhost
1428 show all USB host devices
1429 @item info profile
1430 show profiling information
1431 @item info capture
1432 show information about active capturing
1433 @item info snapshots
1434 show list of VM snapshots
1435 @item info status
1436 show the current VM status (running|paused)
1437 @item info pcmcia
1438 show guest PCMCIA status
1439 @item info mice
1440 show which guest mouse is receiving events
1441 @item info vnc
1442 show the vnc server status
1443 @item info name
1444 show the current VM name
1445 @item info uuid
1446 show the current VM UUID
1447 @item info cpustats
1448 show CPU statistics
1449 @item info usernet
1450 show user network stack connection states
1451 @item info migrate
1452 show migration status
1453 @item info migrate_capabilities
1454 show current migration capabilities
1455 @item info migrate_cache_size
1456 show current migration XBZRLE cache size
1457 @item info balloon
1458 show balloon information
1459 @item info qtree
1460 show device tree
1461 @item info qdm
1462 show qdev device model list
1463 @item info roms
1464 show roms
1465 @end table
1466 ETEXI
1468 #ifdef CONFIG_TRACE_SIMPLE
1469 STEXI
1470 @item info trace
1471 show contents of trace buffer
1472 ETEXI
1473 #endif
1475 STEXI
1476 @item info trace-events
1477 show available trace events and their state
1478 ETEXI
1480 STEXI
1481 @end table
1482 ETEXI