target/ppc: Remove msr_hv macro
[qemu/rayw.git] / hmp-commands.hx
blob03e6a73d1f551d57c1edef570f7a312529753bdd
1 HXCOMM Use DEFHEADING() to define headings in both help text and rST.
2 HXCOMM Text between SRST and ERST is copied to the rST 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 rST and C.
10 .name = "help|?",
11 .args_type = "name:S?",
12 .params = "[cmd]",
13 .help = "show the help",
14 .cmd = do_help_cmd,
15 .flags = "p",
18 SRST
19 ``help`` or ``?`` [*cmd*]
20 Show the help for all commands or just for command *cmd*.
21 ERST
24 .name = "commit",
25 .args_type = "device:B",
26 .params = "device|all",
27 .help = "commit changes to the disk images (if -snapshot is used) or backing files",
28 .cmd = hmp_commit,
31 SRST
32 ``commit``
33 Commit changes to the disk images (if -snapshot is used) or backing files.
34 If the backing file is smaller than the snapshot, then the backing file
35 will be resized to be the same size as the snapshot. If the snapshot is
36 smaller than the backing file, the backing file will not be truncated.
37 If you want the backing file to match the size of the smaller snapshot,
38 you can safely truncate it yourself once the commit operation successfully
39 completes.
40 ERST
43 .name = "quit|q",
44 .args_type = "",
45 .params = "",
46 .help = "quit the emulator",
47 .cmd = hmp_quit,
48 .flags = "p",
51 SRST
52 ``quit`` or ``q``
53 Quit the emulator.
54 ERST
57 .name = "exit_preconfig",
58 .args_type = "",
59 .params = "",
60 .help = "exit the preconfig state",
61 .cmd = hmp_exit_preconfig,
62 .flags = "p",
65 SRST
66 ``exit_preconfig``
67 This command makes QEMU exit the preconfig state and proceed with
68 VM initialization using configuration data provided on the command line
69 and via the QMP monitor during the preconfig state. The command is only
70 available during the preconfig state (i.e. when the --preconfig command
71 line option was in use).
72 ERST
75 .name = "block_resize",
76 .args_type = "device:B,size:o",
77 .params = "device size",
78 .help = "resize a block image",
79 .cmd = hmp_block_resize,
80 .coroutine = true,
83 SRST
84 ``block_resize``
85 Resize a block image while a guest is running. Usually requires guest
86 action to see the updated size. Resize to a lower size is supported,
87 but should be used with extreme caution. Note that this command only
88 resizes image files, it can not resize block devices like LVM volumes.
89 ERST
92 .name = "block_stream",
93 .args_type = "device:B,speed:o?,base:s?",
94 .params = "device [speed [base]]",
95 .help = "copy data from a backing file into a block device",
96 .cmd = hmp_block_stream,
99 SRST
100 ``block_stream``
101 Copy data from a backing file into a block device.
102 ERST
105 .name = "block_job_set_speed",
106 .args_type = "device:B,speed:o",
107 .params = "device speed",
108 .help = "set maximum speed for a background block operation",
109 .cmd = hmp_block_job_set_speed,
112 SRST
113 ``block_job_set_speed``
114 Set maximum speed for a background block operation.
115 ERST
118 .name = "block_job_cancel",
119 .args_type = "force:-f,device:B",
120 .params = "[-f] device",
121 .help = "stop an active background block operation (use -f"
122 "\n\t\t\t if you want to abort the operation immediately"
123 "\n\t\t\t instead of keep running until data is in sync)",
124 .cmd = hmp_block_job_cancel,
127 SRST
128 ``block_job_cancel``
129 Stop an active background block operation (streaming, mirroring).
130 ERST
133 .name = "block_job_complete",
134 .args_type = "device:B",
135 .params = "device",
136 .help = "stop an active background block operation",
137 .cmd = hmp_block_job_complete,
140 SRST
141 ``block_job_complete``
142 Manually trigger completion of an active background block operation.
143 For mirroring, this will switch the device to the destination path.
144 ERST
147 .name = "block_job_pause",
148 .args_type = "device:B",
149 .params = "device",
150 .help = "pause an active background block operation",
151 .cmd = hmp_block_job_pause,
154 SRST
155 ``block_job_pause``
156 Pause an active block streaming operation.
157 ERST
160 .name = "block_job_resume",
161 .args_type = "device:B",
162 .params = "device",
163 .help = "resume a paused background block operation",
164 .cmd = hmp_block_job_resume,
167 SRST
168 ``block_job_resume``
169 Resume a paused block streaming operation.
170 ERST
173 .name = "eject",
174 .args_type = "force:-f,device:B",
175 .params = "[-f] device",
176 .help = "eject a removable medium (use -f to force it)",
177 .cmd = hmp_eject,
180 SRST
181 ``eject [-f]`` *device*
182 Eject a removable medium (use -f to force it).
183 ERST
186 .name = "drive_del",
187 .args_type = "id:B",
188 .params = "device",
189 .help = "remove host block device",
190 .cmd = hmp_drive_del,
193 SRST
194 ``drive_del`` *device*
195 Remove host block device. The result is that guest generated IO is no longer
196 submitted against the host device underlying the disk. Once a drive has
197 been deleted, the QEMU Block layer returns -EIO which results in IO
198 errors in the guest for applications that are reading/writing to the device.
199 These errors are always reported to the guest, regardless of the drive's error
200 actions (drive options rerror, werror).
201 ERST
204 .name = "change",
205 .args_type = "device:B,force:-f,target:F,arg:s?,read-only-mode:s?",
206 .params = "device [-f] filename [format [read-only-mode]]",
207 .help = "change a removable medium, optional format, use -f to force the operation",
208 .cmd = hmp_change,
211 SRST
212 ``change`` *device* *setting*
213 Change the configuration of a device.
215 ``change`` *diskdevice* [-f] *filename* [*format* [*read-only-mode*]]
216 Change the medium for a removable disk device to point to *filename*. eg::
218 (qemu) change ide1-cd0 /path/to/some.iso
220 ``-f``
221 forces the operation even if the guest has locked the tray.
223 *format* is optional.
225 *read-only-mode* may be used to change the read-only status of the device.
226 It accepts the following values:
228 retain
229 Retains the current status; this is the default.
231 read-only
232 Makes the device read-only.
234 read-write
235 Makes the device writable.
237 ``change vnc password`` [*password*]
239 Change the password associated with the VNC server. If the new password
240 is not supplied, the monitor will prompt for it to be entered. VNC
241 passwords are only significant up to 8 letters. eg::
243 (qemu) change vnc password
244 Password: ********
246 ERST
249 .name = "screendump",
250 .args_type = "filename:F,format:-fs,device:s?,head:i?",
251 .params = "filename [-f format] [device [head]]",
252 .help = "save screen from head 'head' of display device 'device'"
253 "in specified format 'format' as image 'filename'."
254 "Currently only 'png' and 'ppm' formats are supported.",
255 .cmd = hmp_screendump,
256 .coroutine = true,
259 SRST
260 ``screendump`` *filename*
261 Save screen into PPM image *filename*.
262 ERST
265 .name = "logfile",
266 .args_type = "filename:F",
267 .params = "filename",
268 .help = "output logs to 'filename'",
269 .cmd = hmp_logfile,
272 SRST
273 ``logfile`` *filename*
274 Output logs to *filename*.
275 ERST
278 .name = "trace-event",
279 .args_type = "name:s,option:b,vcpu:i?",
280 .params = "name on|off [vcpu]",
281 .help = "changes status of a specific trace event "
282 "(vcpu: vCPU to set, default is all)",
283 .cmd = hmp_trace_event,
284 .command_completion = trace_event_completion,
287 SRST
288 ``trace-event``
289 changes status of a trace event
290 ERST
292 #if defined(CONFIG_TRACE_SIMPLE)
294 .name = "trace-file",
295 .args_type = "op:s?,arg:F?",
296 .params = "on|off|flush|set [arg]",
297 .help = "open, close, or flush trace file, or set a new file name",
298 .cmd = hmp_trace_file,
301 SRST
302 ``trace-file on|off|flush``
303 Open, close, or flush the trace file. If no argument is given, the
304 status of the trace file is displayed.
305 ERST
306 #endif
309 .name = "log",
310 .args_type = "items:s",
311 .params = "item1[,...]",
312 .help = "activate logging of the specified items",
313 .cmd = hmp_log,
316 SRST
317 ``log`` *item1*\ [,...]
318 Activate logging of the specified items.
319 ERST
322 .name = "savevm",
323 .args_type = "name:s?",
324 .params = "tag",
325 .help = "save a VM snapshot. If no tag is provided, a new snapshot is created",
326 .cmd = hmp_savevm,
329 SRST
330 ``savevm`` *tag*
331 Create a snapshot of the whole virtual machine. If *tag* is
332 provided, it is used as human readable identifier. If there is already
333 a snapshot with the same tag, it is replaced. More info at
334 :ref:`vm_005fsnapshots`.
336 Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
337 only *tag* as parameter.
338 ERST
341 .name = "loadvm",
342 .args_type = "name:s",
343 .params = "tag",
344 .help = "restore a VM snapshot from its tag",
345 .cmd = hmp_loadvm,
346 .command_completion = loadvm_completion,
349 SRST
350 ``loadvm`` *tag*
351 Set the whole virtual machine to the snapshot identified by the tag
352 *tag*.
354 Since 4.0, loadvm stopped accepting snapshot id as parameter.
355 ERST
358 .name = "delvm",
359 .args_type = "name:s",
360 .params = "tag",
361 .help = "delete a VM snapshot from its tag",
362 .cmd = hmp_delvm,
363 .command_completion = delvm_completion,
366 SRST
367 ``delvm`` *tag*
368 Delete the snapshot identified by *tag*.
370 Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
371 only *tag* as parameter.
372 ERST
375 .name = "singlestep",
376 .args_type = "option:s?",
377 .params = "[on|off]",
378 .help = "run emulation in singlestep mode or switch to normal mode",
379 .cmd = hmp_singlestep,
382 SRST
383 ``singlestep [off]``
384 Run the emulation in single step mode.
385 If called with option off, the emulation returns to normal mode.
386 ERST
389 .name = "stop|s",
390 .args_type = "",
391 .params = "",
392 .help = "stop emulation",
393 .cmd = hmp_stop,
396 SRST
397 ``stop`` or ``s``
398 Stop emulation.
399 ERST
402 .name = "cont|c",
403 .args_type = "",
404 .params = "",
405 .help = "resume emulation",
406 .cmd = hmp_cont,
409 SRST
410 ``cont`` or ``c``
411 Resume emulation.
412 ERST
415 .name = "system_wakeup",
416 .args_type = "",
417 .params = "",
418 .help = "wakeup guest from suspend",
419 .cmd = hmp_system_wakeup,
422 SRST
423 ``system_wakeup``
424 Wakeup guest from suspend.
425 ERST
428 .name = "gdbserver",
429 .args_type = "device:s?",
430 .params = "[device]",
431 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
432 .cmd = hmp_gdbserver,
435 SRST
436 ``gdbserver`` [*port*]
437 Start gdbserver session (default *port*\=1234)
438 ERST
441 .name = "x",
442 .args_type = "fmt:/,addr:l",
443 .params = "/fmt addr",
444 .help = "virtual memory dump starting at 'addr'",
445 .cmd = hmp_memory_dump,
448 SRST
449 ``x/``\ *fmt* *addr*
450 Virtual memory dump starting at *addr*.
451 ERST
454 .name = "xp",
455 .args_type = "fmt:/,addr:l",
456 .params = "/fmt addr",
457 .help = "physical memory dump starting at 'addr'",
458 .cmd = hmp_physical_memory_dump,
461 SRST
462 ``xp /``\ *fmt* *addr*
463 Physical memory dump starting at *addr*.
465 *fmt* is a format which tells the command how to format the
466 data. Its syntax is: ``/{count}{format}{size}``
468 *count*
469 is the number of items to be dumped.
470 *format*
471 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
472 c (char) or i (asm instruction).
473 *size*
474 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
475 ``h`` or ``w`` can be specified with the ``i`` format to
476 respectively select 16 or 32 bit code instruction size.
478 Examples:
480 Dump 10 instructions at the current instruction pointer::
482 (qemu) x/10i $eip
483 0x90107063: ret
484 0x90107064: sti
485 0x90107065: lea 0x0(%esi,1),%esi
486 0x90107069: lea 0x0(%edi,1),%edi
487 0x90107070: ret
488 0x90107071: jmp 0x90107080
489 0x90107073: nop
490 0x90107074: nop
491 0x90107075: nop
492 0x90107076: nop
494 Dump 80 16 bit values at the start of the video memory::
496 (qemu) xp/80hx 0xb8000
497 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
498 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
499 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
500 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
501 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
502 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
503 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
504 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
505 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
506 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
508 ERST
511 .name = "gpa2hva",
512 .args_type = "addr:l",
513 .params = "addr",
514 .help = "print the host virtual address corresponding to a guest physical address",
515 .cmd = hmp_gpa2hva,
518 SRST
519 ``gpa2hva`` *addr*
520 Print the host virtual address at which the guest's physical address *addr*
521 is mapped.
522 ERST
524 #ifdef CONFIG_LINUX
526 .name = "gpa2hpa",
527 .args_type = "addr:l",
528 .params = "addr",
529 .help = "print the host physical address corresponding to a guest physical address",
530 .cmd = hmp_gpa2hpa,
532 #endif
534 SRST
535 ``gpa2hpa`` *addr*
536 Print the host physical address at which the guest's physical address *addr*
537 is mapped.
538 ERST
541 .name = "gva2gpa",
542 .args_type = "addr:l",
543 .params = "addr",
544 .help = "print the guest physical address corresponding to a guest virtual address",
545 .cmd = hmp_gva2gpa,
548 SRST
549 ``gva2gpa`` *addr*
550 Print the guest physical address at which the guest's virtual address *addr*
551 is mapped based on the mapping for the current CPU.
552 ERST
555 .name = "print|p",
556 .args_type = "fmt:/,val:l",
557 .params = "/fmt expr",
558 .help = "print expression value (use $reg for CPU register access)",
559 .cmd = do_print,
562 SRST
563 ``print`` or ``p/``\ *fmt* *expr*
564 Print expression value. Only the *format* part of *fmt* is
565 used.
566 ERST
569 .name = "i",
570 .args_type = "fmt:/,addr:i,index:i.",
571 .params = "/fmt addr",
572 .help = "I/O port read",
573 .cmd = hmp_ioport_read,
576 SRST
577 ``i/``\ *fmt* *addr* [.\ *index*\ ]
578 Read I/O port.
579 ERST
582 .name = "o",
583 .args_type = "fmt:/,addr:i,val:i",
584 .params = "/fmt addr value",
585 .help = "I/O port write",
586 .cmd = hmp_ioport_write,
589 SRST
590 ``o/``\ *fmt* *addr* *val*
591 Write to I/O port.
592 ERST
595 .name = "sendkey",
596 .args_type = "keys:s,hold-time:i?",
597 .params = "keys [hold_ms]",
598 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
599 .cmd = hmp_sendkey,
600 .command_completion = sendkey_completion,
603 SRST
604 ``sendkey`` *keys*
605 Send *keys* to the guest. *keys* could be the name of the
606 key or the raw value in hexadecimal format. Use ``-`` to press
607 several keys simultaneously. Example::
609 sendkey ctrl-alt-f1
611 This command is useful to send keys that your graphical user interface
612 intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
613 ERST
615 .name = "sync-profile",
616 .args_type = "op:s?",
617 .params = "[on|off|reset]",
618 .help = "enable, disable or reset synchronization profiling. "
619 "With no arguments, prints whether profiling is on or off.",
620 .cmd = hmp_sync_profile,
623 SRST
624 ``sync-profile [on|off|reset]``
625 Enable, disable or reset synchronization profiling. With no arguments, prints
626 whether profiling is on or off.
627 ERST
630 .name = "system_reset",
631 .args_type = "",
632 .params = "",
633 .help = "reset the system",
634 .cmd = hmp_system_reset,
637 SRST
638 ``system_reset``
639 Reset the system.
640 ERST
643 .name = "system_powerdown",
644 .args_type = "",
645 .params = "",
646 .help = "send system power down event",
647 .cmd = hmp_system_powerdown,
650 SRST
651 ``system_powerdown``
652 Power down the system (if supported).
653 ERST
656 .name = "sum",
657 .args_type = "start:i,size:i",
658 .params = "addr size",
659 .help = "compute the checksum of a memory region",
660 .cmd = hmp_sum,
663 SRST
664 ``sum`` *addr* *size*
665 Compute the checksum of a memory region.
666 ERST
669 .name = "device_add",
670 .args_type = "device:O",
671 .params = "driver[,prop=value][,...]",
672 .help = "add device, like -device on the command line",
673 .cmd = hmp_device_add,
674 .command_completion = device_add_completion,
677 SRST
678 ``device_add`` *config*
679 Add device.
680 ERST
683 .name = "device_del",
684 .args_type = "id:s",
685 .params = "device",
686 .help = "remove device",
687 .cmd = hmp_device_del,
688 .command_completion = device_del_completion,
691 SRST
692 ``device_del`` *id*
693 Remove device *id*. *id* may be a short ID
694 or a QOM object path.
695 ERST
698 .name = "cpu",
699 .args_type = "index:i",
700 .params = "index",
701 .help = "set the default CPU",
702 .cmd = hmp_cpu,
705 SRST
706 ``cpu`` *index*
707 Set the default CPU.
708 ERST
711 .name = "mouse_move",
712 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
713 .params = "dx dy [dz]",
714 .help = "send mouse move events",
715 .cmd = hmp_mouse_move,
718 SRST
719 ``mouse_move`` *dx* *dy* [*dz*]
720 Move the active mouse to the specified coordinates *dx* *dy*
721 with optional scroll axis *dz*.
722 ERST
725 .name = "mouse_button",
726 .args_type = "button_state:i",
727 .params = "state",
728 .help = "change mouse button state (1=L, 2=M, 4=R)",
729 .cmd = hmp_mouse_button,
732 SRST
733 ``mouse_button`` *val*
734 Change the active mouse button state *val* (1=L, 2=M, 4=R).
735 ERST
738 .name = "mouse_set",
739 .args_type = "index:i",
740 .params = "index",
741 .help = "set which mouse device receives events",
742 .cmd = hmp_mouse_set,
745 SRST
746 ``mouse_set`` *index*
747 Set which mouse device receives events at given *index*, index
748 can be obtained with::
750 info mice
752 ERST
755 .name = "wavcapture",
756 .args_type = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
757 .params = "path audiodev [frequency [bits [channels]]]",
758 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
759 .cmd = hmp_wavcapture,
761 SRST
762 ``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
763 Capture audio into *filename* from *audiodev*, using sample rate
764 *frequency* bits per sample *bits* and number of channels
765 *channels*.
767 Defaults:
769 - Sample rate = 44100 Hz - CD quality
770 - Bits = 16
771 - Number of channels = 2 - Stereo
772 ERST
775 .name = "stopcapture",
776 .args_type = "n:i",
777 .params = "capture index",
778 .help = "stop capture",
779 .cmd = hmp_stopcapture,
781 SRST
782 ``stopcapture`` *index*
783 Stop capture with a given *index*, index can be obtained with::
785 info capture
787 ERST
790 .name = "memsave",
791 .args_type = "val:l,size:i,filename:s",
792 .params = "addr size file",
793 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
794 .cmd = hmp_memsave,
797 SRST
798 ``memsave`` *addr* *size* *file*
799 save to disk virtual memory dump starting at *addr* of size *size*.
800 ERST
803 .name = "pmemsave",
804 .args_type = "val:l,size:i,filename:s",
805 .params = "addr size file",
806 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
807 .cmd = hmp_pmemsave,
810 SRST
811 ``pmemsave`` *addr* *size* *file*
812 save to disk physical memory dump starting at *addr* of size *size*.
813 ERST
816 .name = "boot_set",
817 .args_type = "bootdevice:s",
818 .params = "bootdevice",
819 .help = "define new values for the boot device list",
820 .cmd = hmp_boot_set,
823 SRST
824 ``boot_set`` *bootdevicelist*
825 Define new values for the boot device list. Those values will override
826 the values specified on the command line through the ``-boot`` option.
828 The values that can be specified here depend on the machine type, but are
829 the same that can be specified in the ``-boot`` command line option.
830 ERST
833 .name = "nmi",
834 .args_type = "",
835 .params = "",
836 .help = "inject an NMI",
837 .cmd = hmp_nmi,
839 SRST
840 ``nmi`` *cpu*
841 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
842 ERST
845 .name = "ringbuf_write",
846 .args_type = "device:s,data:s",
847 .params = "device data",
848 .help = "Write to a ring buffer character device",
849 .cmd = hmp_ringbuf_write,
850 .command_completion = ringbuf_write_completion,
853 SRST
854 ``ringbuf_write`` *device* *data*
855 Write *data* to ring buffer character device *device*.
856 *data* must be a UTF-8 string.
857 ERST
860 .name = "ringbuf_read",
861 .args_type = "device:s,size:i",
862 .params = "device size",
863 .help = "Read from a ring buffer character device",
864 .cmd = hmp_ringbuf_read,
865 .command_completion = ringbuf_write_completion,
868 SRST
869 ``ringbuf_read`` *device*
870 Read and print up to *size* bytes from ring buffer character
871 device *device*.
872 Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
873 character code in hexadecimal. Character ``\`` is printed ``\\``.
874 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
875 NUL characters, after the ring buffer lost data, and when reading
876 stops because the size limit is reached.
877 ERST
880 .name = "announce_self",
881 .args_type = "interfaces:s?,id:s?",
882 .params = "[interfaces] [id]",
883 .help = "Trigger GARP/RARP announcements",
884 .cmd = hmp_announce_self,
887 SRST
888 ``announce_self``
889 Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
890 updating the network infrastructure after a reconfiguration or some forms
891 of migration. The timings of the round are set by the migration announce
892 parameters. An optional comma separated *interfaces* list restricts the
893 announce to the named set of interfaces. An optional *id* can be used to
894 start a separate announce timer and to change the parameters of it later.
895 ERST
898 .name = "migrate",
899 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
900 .params = "[-d] [-b] [-i] [-r] uri",
901 .help = "migrate to URI (using -d to not wait for completion)"
902 "\n\t\t\t -b for migration without shared storage with"
903 " full copy of disk\n\t\t\t -i for migration without "
904 "shared storage with incremental copy of disk "
905 "(base image shared between src and destination)"
906 "\n\t\t\t -r to resume a paused migration",
907 .cmd = hmp_migrate,
911 SRST
912 ``migrate [-d] [-b] [-i]`` *uri*
913 Migrate to *uri* (using -d to not wait for completion).
915 ``-b``
916 for migration with full copy of disk
917 ``-i``
918 for migration with incremental copy of disk (base image is shared)
919 ERST
922 .name = "migrate_cancel",
923 .args_type = "",
924 .params = "",
925 .help = "cancel the current VM migration",
926 .cmd = hmp_migrate_cancel,
929 SRST
930 ``migrate_cancel``
931 Cancel the current VM migration.
932 ERST
935 .name = "migrate_continue",
936 .args_type = "state:s",
937 .params = "state",
938 .help = "Continue migration from the given paused state",
939 .cmd = hmp_migrate_continue,
941 SRST
942 ``migrate_continue`` *state*
943 Continue migration from the paused state *state*
944 ERST
947 .name = "migrate_incoming",
948 .args_type = "uri:s",
949 .params = "uri",
950 .help = "Continue an incoming migration from an -incoming defer",
951 .cmd = hmp_migrate_incoming,
954 SRST
955 ``migrate_incoming`` *uri*
956 Continue an incoming migration using the *uri* (that has the same syntax
957 as the ``-incoming`` option).
958 ERST
961 .name = "migrate_recover",
962 .args_type = "uri:s",
963 .params = "uri",
964 .help = "Continue a paused incoming postcopy migration",
965 .cmd = hmp_migrate_recover,
968 SRST
969 ``migrate_recover`` *uri*
970 Continue a paused incoming postcopy migration using the *uri*.
971 ERST
974 .name = "migrate_pause",
975 .args_type = "",
976 .params = "",
977 .help = "Pause an ongoing migration (postcopy-only)",
978 .cmd = hmp_migrate_pause,
981 SRST
982 ``migrate_pause``
983 Pause an ongoing migration. Currently it only supports postcopy.
984 ERST
987 .name = "migrate_set_capability",
988 .args_type = "capability:s,state:b",
989 .params = "capability state",
990 .help = "Enable/Disable the usage of a capability for migration",
991 .cmd = hmp_migrate_set_capability,
992 .command_completion = migrate_set_capability_completion,
995 SRST
996 ``migrate_set_capability`` *capability* *state*
997 Enable/Disable the usage of a capability *capability* for migration.
998 ERST
1001 .name = "migrate_set_parameter",
1002 .args_type = "parameter:s,value:s",
1003 .params = "parameter value",
1004 .help = "Set the parameter for migration",
1005 .cmd = hmp_migrate_set_parameter,
1006 .command_completion = migrate_set_parameter_completion,
1009 SRST
1010 ``migrate_set_parameter`` *parameter* *value*
1011 Set the parameter *parameter* for migration.
1012 ERST
1015 .name = "migrate_start_postcopy",
1016 .args_type = "",
1017 .params = "",
1018 .help = "Followup to a migration command to switch the migration"
1019 " to postcopy mode. The postcopy-ram capability must "
1020 "be set on both source and destination before the "
1021 "original migration command .",
1022 .cmd = hmp_migrate_start_postcopy,
1025 SRST
1026 ``migrate_start_postcopy``
1027 Switch in-progress migration to postcopy mode. Ignored after the end of
1028 migration (or once already in postcopy).
1029 ERST
1032 .name = "x_colo_lost_heartbeat",
1033 .args_type = "",
1034 .params = "",
1035 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1036 "a failover or takeover is needed.",
1037 .cmd = hmp_x_colo_lost_heartbeat,
1040 SRST
1041 ``x_colo_lost_heartbeat``
1042 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1043 ERST
1046 .name = "client_migrate_info",
1047 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1048 .params = "protocol hostname port tls-port cert-subject",
1049 .help = "set migration information for remote display",
1050 .cmd = hmp_client_migrate_info,
1053 SRST
1054 ``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
1055 Set migration information for remote display. This makes the server
1056 ask the client to automatically reconnect using the new parameters
1057 once migration finished successfully. Only implemented for SPICE.
1058 ERST
1061 .name = "dump-guest-memory",
1062 .args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1063 .params = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
1064 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1065 "-p: do paging to get guest's memory mapping.\n\t\t\t"
1066 "-d: return immediately (do not wait for completion).\n\t\t\t"
1067 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1068 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1069 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
1070 "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
1071 " for Windows x86 and x64 guests with vmcoreinfo driver only.\n\t\t\t"
1072 "begin: the starting physical address.\n\t\t\t"
1073 "length: the memory size, in bytes.",
1074 .cmd = hmp_dump_guest_memory,
1077 SRST
1078 ``dump-guest-memory [-p]`` *filename* *begin* *length*
1080 ``dump-guest-memory [-z|-l|-s|-w]`` *filename*
1081 Dump guest memory to *protocol*. The file can be processed with crash or
1082 gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.
1084 ``-p``
1085 do paging to get guest's memory mapping.
1086 ``-z``
1087 dump in kdump-compressed format, with zlib compression.
1088 ``-l``
1089 dump in kdump-compressed format, with lzo compression.
1090 ``-s``
1091 dump in kdump-compressed format, with snappy compression.
1092 ``-w``
1093 dump in Windows crashdump format (can be used instead of ELF-dump converting),
1094 for Windows x64 guests with vmcoreinfo driver only
1095 *filename*
1096 dump file name.
1097 *begin*
1098 the starting physical address. It's optional, and should be
1099 specified together with *length*.
1100 *length*
1101 the memory size, in bytes. It's optional, and should be specified
1102 together with *begin*.
1104 ERST
1106 #if defined(TARGET_S390X)
1108 .name = "dump-skeys",
1109 .args_type = "filename:F",
1110 .params = "",
1111 .help = "Save guest storage keys into file 'filename'.\n",
1112 .cmd = hmp_dump_skeys,
1114 #endif
1116 SRST
1117 ``dump-skeys`` *filename*
1118 Save guest storage keys to a file.
1119 ERST
1121 #if defined(TARGET_S390X)
1123 .name = "migration_mode",
1124 .args_type = "mode:i",
1125 .params = "mode",
1126 .help = "Enables or disables migration mode\n",
1127 .cmd = hmp_migrationmode,
1129 #endif
1131 SRST
1132 ``migration_mode`` *mode*
1133 Enables or disables migration mode.
1134 ERST
1137 .name = "snapshot_blkdev",
1138 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1139 .params = "[-n] device [new-image-file] [format]",
1140 .help = "initiates a live snapshot\n\t\t\t"
1141 "of device. If a new image file is specified, the\n\t\t\t"
1142 "new image file will become the new root image.\n\t\t\t"
1143 "If format is specified, the snapshot file will\n\t\t\t"
1144 "be created in that format.\n\t\t\t"
1145 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1146 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1147 "recreating it from scratch.",
1148 .cmd = hmp_snapshot_blkdev,
1151 SRST
1152 ``snapshot_blkdev``
1153 Snapshot device, using snapshot file as target if provided
1154 ERST
1157 .name = "snapshot_blkdev_internal",
1158 .args_type = "device:B,name:s",
1159 .params = "device name",
1160 .help = "take an internal snapshot of device.\n\t\t\t"
1161 "The format of the image used by device must\n\t\t\t"
1162 "support it, such as qcow2.\n\t\t\t",
1163 .cmd = hmp_snapshot_blkdev_internal,
1166 SRST
1167 ``snapshot_blkdev_internal``
1168 Take an internal snapshot on device if it support
1169 ERST
1172 .name = "snapshot_delete_blkdev_internal",
1173 .args_type = "device:B,name:s,id:s?",
1174 .params = "device name [id]",
1175 .help = "delete an internal snapshot of device.\n\t\t\t"
1176 "If id is specified, qemu will try delete\n\t\t\t"
1177 "the snapshot matching both id and name.\n\t\t\t"
1178 "The format of the image used by device must\n\t\t\t"
1179 "support it, such as qcow2.\n\t\t\t",
1180 .cmd = hmp_snapshot_delete_blkdev_internal,
1183 SRST
1184 ``snapshot_delete_blkdev_internal``
1185 Delete an internal snapshot on device if it support
1186 ERST
1189 .name = "drive_mirror",
1190 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1191 .params = "[-n] [-f] device target [format]",
1192 .help = "initiates live storage\n\t\t\t"
1193 "migration for a device. The device's contents are\n\t\t\t"
1194 "copied to the new image file, including data that\n\t\t\t"
1195 "is written after the command is started.\n\t\t\t"
1196 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1197 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1198 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1199 "so that the result does not need a backing file.\n\t\t\t",
1200 .cmd = hmp_drive_mirror,
1202 SRST
1203 ``drive_mirror``
1204 Start mirroring a block device's writes to a new destination,
1205 using the specified target.
1206 ERST
1209 .name = "drive_backup",
1210 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1211 .params = "[-n] [-f] [-c] device target [format]",
1212 .help = "initiates a point-in-time\n\t\t\t"
1213 "copy for a device. The device's contents are\n\t\t\t"
1214 "copied to the new image file, excluding data that\n\t\t\t"
1215 "is written after the command is started.\n\t\t\t"
1216 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1217 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1218 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1219 "so that the result does not need a backing file.\n\t\t\t"
1220 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1221 "(if the target format supports it).\n\t\t\t",
1222 .cmd = hmp_drive_backup,
1224 SRST
1225 ``drive_backup``
1226 Start a point-in-time copy of a block device to a specified target.
1227 ERST
1230 .name = "drive_add",
1231 .args_type = "node:-n,pci_addr:s,opts:s",
1232 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
1233 "[file=file][,if=type][,bus=n]\n"
1234 "[,unit=m][,media=d][,index=i]\n"
1235 "[,snapshot=on|off][,cache=on|off]\n"
1236 "[,readonly=on|off][,copy-on-read=on|off]",
1237 .help = "add drive to PCI storage controller",
1238 .cmd = hmp_drive_add,
1241 SRST
1242 ``drive_add``
1243 Add drive to PCI storage controller.
1244 ERST
1247 .name = "pcie_aer_inject_error",
1248 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1249 "id:s,error_status:s,"
1250 "header0:i?,header1:i?,header2:i?,header3:i?,"
1251 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1252 .params = "[-a] [-c] id "
1253 "<error_status> [<tlp header> [<tlp header prefix>]]",
1254 .help = "inject pcie aer error\n\t\t\t"
1255 " -a for advisory non fatal error\n\t\t\t"
1256 " -c for correctable error\n\t\t\t"
1257 "<id> = qdev device id\n\t\t\t"
1258 "<error_status> = error string or 32bit\n\t\t\t"
1259 "<tlp header> = 32bit x 4\n\t\t\t"
1260 "<tlp header prefix> = 32bit x 4",
1261 .cmd = hmp_pcie_aer_inject_error,
1264 SRST
1265 ``pcie_aer_inject_error``
1266 Inject PCIe AER error
1267 ERST
1270 .name = "netdev_add",
1271 .args_type = "netdev:O",
1272 .params = "[user|tap|socket|vde|bridge|hubport|netmap|vhost-user],id=str[,prop=value][,...]",
1273 .help = "add host network device",
1274 .cmd = hmp_netdev_add,
1275 .command_completion = netdev_add_completion,
1276 .flags = "p",
1279 SRST
1280 ``netdev_add``
1281 Add host network device.
1282 ERST
1285 .name = "netdev_del",
1286 .args_type = "id:s",
1287 .params = "id",
1288 .help = "remove host network device",
1289 .cmd = hmp_netdev_del,
1290 .command_completion = netdev_del_completion,
1291 .flags = "p",
1294 SRST
1295 ``netdev_del``
1296 Remove host network device.
1297 ERST
1300 .name = "object_add",
1301 .args_type = "object:S",
1302 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1303 .help = "create QOM object",
1304 .cmd = hmp_object_add,
1305 .command_completion = object_add_completion,
1306 .flags = "p",
1309 SRST
1310 ``object_add``
1311 Create QOM object.
1312 ERST
1315 .name = "object_del",
1316 .args_type = "id:s",
1317 .params = "id",
1318 .help = "destroy QOM object",
1319 .cmd = hmp_object_del,
1320 .command_completion = object_del_completion,
1321 .flags = "p",
1324 SRST
1325 ``object_del``
1326 Destroy QOM object.
1327 ERST
1329 #ifdef CONFIG_SLIRP
1331 .name = "hostfwd_add",
1332 .args_type = "arg1:s,arg2:s?",
1333 .params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
1334 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
1335 .cmd = hmp_hostfwd_add,
1337 #endif
1338 SRST
1339 ``hostfwd_add``
1340 Redirect TCP or UDP connections from host to guest (requires -net user).
1341 ERST
1343 #ifdef CONFIG_SLIRP
1345 .name = "hostfwd_remove",
1346 .args_type = "arg1:s,arg2:s?",
1347 .params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport",
1348 .help = "remove host-to-guest TCP or UDP redirection",
1349 .cmd = hmp_hostfwd_remove,
1352 #endif
1353 SRST
1354 ``hostfwd_remove``
1355 Remove host-to-guest TCP or UDP redirection.
1356 ERST
1359 .name = "balloon",
1360 .args_type = "value:M",
1361 .params = "target",
1362 .help = "request VM to change its memory allocation (in MB)",
1363 .cmd = hmp_balloon,
1366 SRST
1367 ``balloon`` *value*
1368 Request VM to change its memory allocation to *value* (in MB).
1369 ERST
1372 .name = "set_link",
1373 .args_type = "name:s,up:b",
1374 .params = "name on|off",
1375 .help = "change the link status of a network adapter",
1376 .cmd = hmp_set_link,
1377 .command_completion = set_link_completion,
1380 SRST
1381 ``set_link`` *name* ``[on|off]``
1382 Switch link *name* on (i.e. up) or off (i.e. down).
1383 ERST
1386 .name = "watchdog_action",
1387 .args_type = "action:s",
1388 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1389 .help = "change watchdog action",
1390 .cmd = hmp_watchdog_action,
1391 .command_completion = watchdog_action_completion,
1394 SRST
1395 ``watchdog_action``
1396 Change watchdog action.
1397 ERST
1400 .name = "nbd_server_start",
1401 .args_type = "all:-a,writable:-w,uri:s",
1402 .params = "nbd_server_start [-a] [-w] host:port",
1403 .help = "serve block devices on the given host and port",
1404 .cmd = hmp_nbd_server_start,
1406 SRST
1407 ``nbd_server_start`` *host*:*port*
1408 Start an NBD server on the given host and/or port. If the ``-a``
1409 option is included, all of the virtual machine's block devices that
1410 have an inserted media on them are automatically exported; in this case,
1411 the ``-w`` option makes the devices writable too.
1412 ERST
1415 .name = "nbd_server_add",
1416 .args_type = "writable:-w,device:B,name:s?",
1417 .params = "nbd_server_add [-w] device [name]",
1418 .help = "export a block device via NBD",
1419 .cmd = hmp_nbd_server_add,
1421 SRST
1422 ``nbd_server_add`` *device* [ *name* ]
1423 Export a block device through QEMU's NBD server, which must be started
1424 beforehand with ``nbd_server_start``. The ``-w`` option makes the
1425 exported device writable too. The export name is controlled by *name*,
1426 defaulting to *device*.
1427 ERST
1430 .name = "nbd_server_remove",
1431 .args_type = "force:-f,name:s",
1432 .params = "nbd_server_remove [-f] name",
1433 .help = "remove an export previously exposed via NBD",
1434 .cmd = hmp_nbd_server_remove,
1436 SRST
1437 ``nbd_server_remove [-f]`` *name*
1438 Stop exporting a block device through QEMU's NBD server, which was
1439 previously started with ``nbd_server_add``. The ``-f``
1440 option forces the server to drop the export immediately even if
1441 clients are connected; otherwise the command fails unless there are no
1442 clients.
1443 ERST
1446 .name = "nbd_server_stop",
1447 .args_type = "",
1448 .params = "nbd_server_stop",
1449 .help = "stop serving block devices using the NBD protocol",
1450 .cmd = hmp_nbd_server_stop,
1452 SRST
1453 ``nbd_server_stop``
1454 Stop the QEMU embedded NBD server.
1455 ERST
1458 #if defined(TARGET_I386)
1461 .name = "mce",
1462 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1463 .params = "[-b] cpu bank status mcgstatus addr misc",
1464 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
1465 .cmd = hmp_mce,
1468 #endif
1469 SRST
1470 ``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
1471 Inject an MCE on the given CPU (x86 only).
1472 ERST
1475 .name = "getfd",
1476 .args_type = "fdname:s",
1477 .params = "getfd name",
1478 .help = "receive a file descriptor via SCM rights and assign it a name",
1479 .cmd = hmp_getfd,
1482 SRST
1483 ``getfd`` *fdname*
1484 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1485 mechanism on unix sockets, it is stored using the name *fdname* for
1486 later use by other monitor commands.
1487 ERST
1490 .name = "closefd",
1491 .args_type = "fdname:s",
1492 .params = "closefd name",
1493 .help = "close a file descriptor previously passed via SCM rights",
1494 .cmd = hmp_closefd,
1497 SRST
1498 ``closefd`` *fdname*
1499 Close the file descriptor previously assigned to *fdname* using the
1500 ``getfd`` command. This is only needed if the file descriptor was never
1501 used by another monitor command.
1502 ERST
1505 .name = "block_set_io_throttle",
1506 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1507 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1508 .help = "change I/O throttle limits for a block drive",
1509 .cmd = hmp_block_set_io_throttle,
1512 SRST
1513 ``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
1514 Change I/O throttle limits for a block drive to
1515 *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
1516 *device* can be a block device name, a qdev ID or a QOM path.
1517 ERST
1520 .name = "set_password",
1521 .args_type = "protocol:s,password:s,display:-ds,connected:s?",
1522 .params = "protocol password [-d display] [action-if-connected]",
1523 .help = "set spice/vnc password",
1524 .cmd = hmp_set_password,
1527 SRST
1528 ``set_password [ vnc | spice ] password [ -d display ] [ action-if-connected ]``
1529 Change spice/vnc password. *display* can be used with 'vnc' to specify
1530 which display to set the password on. *action-if-connected* specifies
1531 what should happen in case a connection is established: *fail* makes
1532 the password change fail. *disconnect* changes the password and
1533 disconnects the client. *keep* changes the password and keeps the
1534 connection up. *keep* is the default.
1535 ERST
1538 .name = "expire_password",
1539 .args_type = "protocol:s,time:s,display:-ds",
1540 .params = "protocol time [-d display]",
1541 .help = "set spice/vnc password expire-time",
1542 .cmd = hmp_expire_password,
1545 SRST
1546 ``expire_password [ vnc | spice ] expire-time [ -d display ]``
1547 Specify when a password for spice/vnc becomes invalid.
1548 *display* behaves the same as in ``set_password``.
1549 *expire-time* accepts:
1551 ``now``
1552 Invalidate password instantly.
1553 ``never``
1554 Password stays valid forever.
1555 ``+``\ *nsec*
1556 Password stays valid for *nsec* seconds starting now.
1557 *nsec*
1558 Password is invalidated at the given time. *nsec* are the seconds
1559 passed since 1970, i.e. unix epoch.
1561 ERST
1564 .name = "chardev-add",
1565 .args_type = "args:s",
1566 .params = "args",
1567 .help = "add chardev",
1568 .cmd = hmp_chardev_add,
1569 .command_completion = chardev_add_completion,
1572 SRST
1573 ``chardev-add`` *args*
1574 chardev-add accepts the same parameters as the -chardev command line switch.
1575 ERST
1578 .name = "chardev-change",
1579 .args_type = "id:s,args:s",
1580 .params = "id args",
1581 .help = "change chardev",
1582 .cmd = hmp_chardev_change,
1585 SRST
1586 ``chardev-change`` *args*
1587 chardev-change accepts existing chardev *id* and then the same arguments
1588 as the -chardev command line switch (except for "id").
1589 ERST
1592 .name = "chardev-remove",
1593 .args_type = "id:s",
1594 .params = "id",
1595 .help = "remove chardev",
1596 .cmd = hmp_chardev_remove,
1597 .command_completion = chardev_remove_completion,
1600 SRST
1601 ``chardev-remove`` *id*
1602 Removes the chardev *id*.
1603 ERST
1606 .name = "chardev-send-break",
1607 .args_type = "id:s",
1608 .params = "id",
1609 .help = "send a break on chardev",
1610 .cmd = hmp_chardev_send_break,
1611 .command_completion = chardev_remove_completion,
1614 SRST
1615 ``chardev-send-break`` *id*
1616 Send a break on the chardev *id*.
1617 ERST
1620 .name = "qemu-io",
1621 .args_type = "qdev:-d,device:B,command:s",
1622 .params = "[-d] [device] \"[command]\"",
1623 .help = "run a qemu-io command on a block device\n\t\t\t"
1624 "-d: [device] is a device ID rather than a "
1625 "drive ID or node name",
1626 .cmd = hmp_qemu_io,
1629 SRST
1630 ``qemu-io`` *device* *command*
1631 Executes a qemu-io command on the given block device.
1632 ERST
1635 .name = "qom-list",
1636 .args_type = "path:s?",
1637 .params = "path",
1638 .help = "list QOM properties",
1639 .cmd = hmp_qom_list,
1640 .flags = "p",
1643 SRST
1644 ``qom-list`` [*path*]
1645 Print QOM properties of object at location *path*
1646 ERST
1649 .name = "qom-get",
1650 .args_type = "path:s,property:s",
1651 .params = "path property",
1652 .help = "print QOM property",
1653 .cmd = hmp_qom_get,
1654 .flags = "p",
1657 SRST
1658 ``qom-get`` *path* *property*
1659 Print QOM property *property* of object at location *path*
1660 ERST
1663 .name = "qom-set",
1664 .args_type = "json:-j,path:s,property:s,value:S",
1665 .params = "[-j] path property value",
1666 .help = "set QOM property.\n\t\t\t"
1667 "-j: the value is specified in json format.",
1668 .cmd = hmp_qom_set,
1669 .flags = "p",
1672 SRST
1673 ``qom-set`` *path* *property* *value*
1674 Set QOM property *property* of object at location *path* to value *value*
1675 ERST
1678 .name = "replay_break",
1679 .args_type = "icount:l",
1680 .params = "icount",
1681 .help = "set breakpoint at the specified instruction count",
1682 .cmd = hmp_replay_break,
1685 SRST
1686 ``replay_break`` *icount*
1687 Set replay breakpoint at instruction count *icount*.
1688 Execution stops when the specified instruction is reached.
1689 There can be at most one breakpoint. When breakpoint is set, any prior
1690 one is removed. The breakpoint may be set only in replay mode and only
1691 "in the future", i.e. at instruction counts greater than the current one.
1692 The current instruction count can be observed with ``info replay``.
1693 ERST
1696 .name = "replay_delete_break",
1697 .args_type = "",
1698 .params = "",
1699 .help = "remove replay breakpoint",
1700 .cmd = hmp_replay_delete_break,
1703 SRST
1704 ``replay_delete_break``
1705 Remove replay breakpoint which was previously set with ``replay_break``.
1706 The command is ignored when there are no replay breakpoints.
1707 ERST
1710 .name = "replay_seek",
1711 .args_type = "icount:l",
1712 .params = "icount",
1713 .help = "replay execution to the specified instruction count",
1714 .cmd = hmp_replay_seek,
1717 SRST
1718 ``replay_seek`` *icount*
1719 Automatically proceed to the instruction count *icount*, when
1720 replaying the execution. The command automatically loads nearest
1721 snapshot and replays the execution to find the desired instruction.
1722 When there is no preceding snapshot or the execution is not replayed,
1723 then the command fails.
1724 *icount* for the reference may be observed with ``info replay`` command.
1725 ERST
1728 .name = "info",
1729 .args_type = "item:s?",
1730 .params = "[subcommand]",
1731 .help = "show various information about the system state",
1732 .cmd = hmp_info_help,
1733 .sub_table = hmp_info_cmds,
1734 .flags = "p",
1737 SRST
1738 ``calc_dirty_rate`` *second*
1739 Start a round of dirty rate measurement with the period specified in *second*.
1740 The result of the dirty rate measurement may be observed with ``info
1741 dirty_rate`` command.
1742 ERST
1745 .name = "calc_dirty_rate",
1746 .args_type = "dirty_ring:-r,dirty_bitmap:-b,second:l,sample_pages_per_GB:l?",
1747 .params = "[-r] [-b] second [sample_pages_per_GB]",
1748 .help = "start a round of guest dirty rate measurement (using -r to"
1749 "\n\t\t\t specify dirty ring as the method of calculation and"
1750 "\n\t\t\t -b to specify dirty bitmap as method of calculation)",
1751 .cmd = hmp_calc_dirty_rate,