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1HXCOMM See docs/devel/docs.rst for the format of this file.
2HXCOMM
3HXCOMM This file defines the contents of an array of HMPCommand structs
4HXCOMM which specify the name, behaviour and help text for HMP commands.
5HXCOMM Text between SRST and ERST is rST format documentation.
3c95fdef 6HXCOMM HXCOMM can be used for comments, discarded from both rST and C.
2313086a 7
2313086a 8
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9 {
10 .name = "help|?",
129be006 11 .args_type = "name:S?",
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12 .params = "[cmd]",
13 .help = "show the help",
cbf81997 14 .cmd = hmp_help,
31785f1b 15 .flags = "p",
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16 },
17
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18SRST
19``help`` or ``?`` [*cmd*]
20 Show the help for all commands or just for command *cmd*.
21ERST
2313086a 22
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23 {
24 .name = "commit",
25 .args_type = "device:B",
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26 .params = "device|all",
27 .help = "commit changes to the disk images (if -snapshot is used) or backing files",
2b9e3576 28 .cmd = hmp_commit,
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29 },
30
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31SRST
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.
40ERST
2313086a 41
d7f9b689 42 {
ff688cd2 43 .name = "quit|q",
d7f9b689 44 .args_type = "",
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45 .params = "",
46 .help = "quit the emulator",
2b9e3576 47 .cmd = hmp_quit,
ebe34444 48 .flags = "p",
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49 },
50
a6b30bca 51SRST
ff688cd2 52``quit`` or ``q``
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53 Quit the emulator.
54ERST
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55
56 {
57 .name = "exit_preconfig",
58 .args_type = "",
59 .params = "",
60 .help = "exit the preconfig state",
61 .cmd = hmp_exit_preconfig,
62 .flags = "p",
63 },
64
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65SRST
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).
72ERST
2313086a 73
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74 {
75 .name = "block_resize",
76 .args_type = "device:B,size:o",
77 .params = "device size",
78 .help = "resize a block image",
2b9e3576 79 .cmd = hmp_block_resize,
eb94b81a 80 .coroutine = true,
f55ba801 81 .flags = "p",
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82 },
83
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84SRST
85``block_resize``
86 Resize a block image while a guest is running. Usually requires guest
87 action to see the updated size. Resize to a lower size is supported,
88 but should be used with extreme caution. Note that this command only
89 resizes image files, it can not resize block devices like LVM volumes.
90ERST
6d4a2b3a 91
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92 {
93 .name = "block_stream",
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94 .args_type = "device:B,speed:o?,base:s?",
95 .params = "device [speed [base]]",
12bd451f 96 .help = "copy data from a backing file into a block device",
2b9e3576 97 .cmd = hmp_block_stream,
f55ba801 98 .flags = "p",
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99 },
100
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101SRST
102``block_stream``
103 Copy data from a backing file into a block device.
104ERST
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105
106 {
107 .name = "block_job_set_speed",
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108 .args_type = "device:B,speed:o",
109 .params = "device speed",
2d47c6e9 110 .help = "set maximum speed for a background block operation",
2b9e3576 111 .cmd = hmp_block_job_set_speed,
f55ba801 112 .flags = "p",
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113 },
114
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115SRST
116``block_job_set_speed``
117 Set maximum speed for a background block operation.
118ERST
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119
120 {
121 .name = "block_job_cancel",
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122 .args_type = "force:-f,device:B",
123 .params = "[-f] device",
124 .help = "stop an active background block operation (use -f"
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125 "\n\t\t\t if you want to abort the operation immediately"
126 "\n\t\t\t instead of keep running until data is in sync)",
2b9e3576 127 .cmd = hmp_block_job_cancel,
f55ba801 128 .flags = "p",
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129 },
130
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131SRST
132``block_job_cancel``
133 Stop an active background block operation (streaming, mirroring).
134ERST
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135
136 {
137 .name = "block_job_complete",
138 .args_type = "device:B",
139 .params = "device",
140 .help = "stop an active background block operation",
2b9e3576 141 .cmd = hmp_block_job_complete,
f55ba801 142 .flags = "p",
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143 },
144
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145SRST
146``block_job_complete``
147 Manually trigger completion of an active background block operation.
148 For mirroring, this will switch the device to the destination path.
149ERST
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150
151 {
152 .name = "block_job_pause",
153 .args_type = "device:B",
154 .params = "device",
155 .help = "pause an active background block operation",
2b9e3576 156 .cmd = hmp_block_job_pause,
f55ba801 157 .flags = "p",
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158 },
159
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160SRST
161``block_job_pause``
162 Pause an active block streaming operation.
163ERST
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164
165 {
166 .name = "block_job_resume",
167 .args_type = "device:B",
168 .params = "device",
169 .help = "resume a paused background block operation",
2b9e3576 170 .cmd = hmp_block_job_resume,
f55ba801 171 .flags = "p",
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172 },
173
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174SRST
175``block_job_resume``
176 Resume a paused block streaming operation.
177ERST
6d4a2b3a 178
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179 {
180 .name = "eject",
78d714e0 181 .args_type = "force:-f,device:B",
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182 .params = "[-f] device",
183 .help = "eject a removable medium (use -f to force it)",
2b9e3576 184 .cmd = hmp_eject,
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185 },
186
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187SRST
188``eject [-f]`` *device*
189 Eject a removable medium (use -f to force it).
190ERST
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191
192 {
193 .name = "drive_del",
f7bdc41a 194 .args_type = "id:B",
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195 .params = "device",
196 .help = "remove host block device",
2b9e3576 197 .cmd = hmp_drive_del,
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198 },
199
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200SRST
201``drive_del`` *device*
202 Remove host block device. The result is that guest generated IO is no longer
203 submitted against the host device underlying the disk. Once a drive has
204 been deleted, the QEMU Block layer returns -EIO which results in IO
205 errors in the guest for applications that are reading/writing to the device.
206 These errors are always reported to the guest, regardless of the drive's error
207 actions (drive options rerror, werror).
208ERST
2313086a 209
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210 {
211 .name = "change",
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212 .args_type = "device:B,force:-f,target:F,arg:s?,read-only-mode:s?",
213 .params = "device [-f] filename [format [read-only-mode]]",
214 .help = "change a removable medium, optional format, use -f to force the operation",
2b9e3576 215 .cmd = hmp_change,
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216 },
217
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218SRST
219``change`` *device* *setting*
220 Change the configuration of a device.
221
80dd5aff 222 ``change`` *diskdevice* [-f] *filename* [*format* [*read-only-mode*]]
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223 Change the medium for a removable disk device to point to *filename*. eg::
224
225 (qemu) change ide1-cd0 /path/to/some.iso
226
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227 ``-f``
228 forces the operation even if the guest has locked the tray.
229
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230 *format* is optional.
231
232 *read-only-mode* may be used to change the read-only status of the device.
233 It accepts the following values:
234
235 retain
236 Retains the current status; this is the default.
237
238 read-only
239 Makes the device read-only.
240
241 read-write
242 Makes the device writable.
243
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244 ``change vnc password`` [*password*]
245
246 Change the password associated with the VNC server. If the new password
247 is not supplied, the monitor will prompt for it to be entered. VNC
248 passwords are only significant up to 8 letters. eg::
249
250 (qemu) change vnc password
251 Password: ********
252
253ERST
2313086a 254
f38aa2c7 255#ifdef CONFIG_PIXMAN
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256 {
257 .name = "screendump",
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258 .args_type = "filename:F,format:-fs,device:s?,head:i?",
259 .params = "filename [-f format] [device [head]]",
260 .help = "save screen from head 'head' of display device 'device'"
261 "in specified format 'format' as image 'filename'."
262 "Currently only 'png' and 'ppm' formats are supported.",
263 .cmd = hmp_screendump,
0d9b90ce 264 .coroutine = true,
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265 },
266
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267SRST
268``screendump`` *filename*
269 Save screen into PPM image *filename*.
270ERST
f38aa2c7 271#endif
2313086a 272
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273 {
274 .name = "logfile",
275 .args_type = "filename:F",
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276 .params = "filename",
277 .help = "output logs to 'filename'",
2b9e3576 278 .cmd = hmp_logfile,
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279 },
280
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281SRST
282``logfile`` *filename*
283 Output logs to *filename*.
284ERST
2313086a 285
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286 {
287 .name = "trace-event",
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288 .args_type = "name:s,option:b,vcpu:i?",
289 .params = "name on|off [vcpu]",
290 .help = "changes status of a specific trace event "
291 "(vcpu: vCPU to set, default is all)",
2b9e3576 292 .cmd = hmp_trace_event,
987bd270 293 .command_completion = trace_event_completion,
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294 },
295
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296SRST
297``trace-event``
298 changes status of a trace event
299ERST
c5ceb523 300
c45a8168 301#if defined(CONFIG_TRACE_SIMPLE)
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302 {
303 .name = "trace-file",
304 .args_type = "op:s?,arg:F?",
305 .params = "on|off|flush|set [arg]",
306 .help = "open, close, or flush trace file, or set a new file name",
2b9e3576 307 .cmd = hmp_trace_file,
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308 },
309
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310SRST
311``trace-file on|off|flush``
312 Open, close, or flush the trace file. If no argument is given, the
313 status of the trace file is displayed.
314ERST
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315#endif
316
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317 {
318 .name = "log",
319 .args_type = "items:s",
d7f9b689 320 .params = "item1[,...]",
989b697d 321 .help = "activate logging of the specified items",
2b9e3576 322 .cmd = hmp_log,
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323 },
324
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325SRST
326``log`` *item1*\ [,...]
327 Activate logging of the specified items.
328ERST
2313086a 329
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330 {
331 .name = "savevm",
332 .args_type = "name:s?",
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333 .params = "tag",
334 .help = "save a VM snapshot. If no tag is provided, a new snapshot is created",
2b9e3576 335 .cmd = hmp_savevm,
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336 },
337
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338SRST
339``savevm`` *tag*
340 Create a snapshot of the whole virtual machine. If *tag* is
341 provided, it is used as human readable identifier. If there is already
342 a snapshot with the same tag, it is replaced. More info at
343 :ref:`vm_005fsnapshots`.
344
345 Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
346 only *tag* as parameter.
347ERST
2313086a 348
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349 {
350 .name = "loadvm",
351 .args_type = "name:s",
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352 .params = "tag",
353 .help = "restore a VM snapshot from its tag",
2b9e3576 354 .cmd = hmp_loadvm,
b21631f3 355 .command_completion = loadvm_completion,
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356 },
357
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358SRST
359``loadvm`` *tag*
360 Set the whole virtual machine to the snapshot identified by the tag
361 *tag*.
362
363 Since 4.0, loadvm stopped accepting snapshot id as parameter.
364ERST
2313086a 365
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366 {
367 .name = "delvm",
368 .args_type = "name:s",
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369 .params = "tag",
370 .help = "delete a VM snapshot from its tag",
2b9e3576 371 .cmd = hmp_delvm,
b21631f3 372 .command_completion = delvm_completion,
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373 },
374
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375SRST
376``delvm`` *tag*
377 Delete the snapshot identified by *tag*.
378
379 Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
380 only *tag* as parameter.
381ERST
2313086a 382
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383 {
384 .name = "one-insn-per-tb",
385 .args_type = "option:s?",
386 .params = "[on|off]",
387 .help = "run emulation with one guest instruction per translation block",
388 .cmd = hmp_one_insn_per_tb,
389 },
390
391SRST
392``one-insn-per-tb [off]``
393 Run the emulation with one guest instruction per translation block.
394 This slows down emulation a lot, but can be useful in some situations,
395 such as when trying to analyse the logs produced by the ``-d`` option.
396 This only has an effect when using TCG, not with KVM or other accelerators.
397
398 If called with option off, the emulation returns to normal mode.
399ERST
400
d7f9b689 401 {
de4cf848 402 .name = "stop|s",
d7f9b689 403 .args_type = "",
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404 .params = "",
405 .help = "stop emulation",
2b9e3576 406 .cmd = hmp_stop,
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407 },
408
a6b30bca 409SRST
de4cf848 410``stop`` or ``s``
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411 Stop emulation.
412ERST
2313086a 413
d7f9b689 414 {
ff688cd2 415 .name = "cont|c",
d7f9b689 416 .args_type = "",
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417 .params = "",
418 .help = "resume emulation",
2b9e3576 419 .cmd = hmp_cont,
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420 },
421
a6b30bca 422SRST
ff688cd2 423``cont`` or ``c``
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424 Resume emulation.
425ERST
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426
427 {
428 .name = "system_wakeup",
429 .args_type = "",
430 .params = "",
431 .help = "wakeup guest from suspend",
2b9e3576 432 .cmd = hmp_system_wakeup,
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433 },
434
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435SRST
436``system_wakeup``
437 Wakeup guest from suspend.
438ERST
2313086a 439
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440 {
441 .name = "gdbserver",
442 .args_type = "device:s?",
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443 .params = "[device]",
444 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
2b9e3576 445 .cmd = hmp_gdbserver,
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446 },
447
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448SRST
449``gdbserver`` [*port*]
450 Start gdbserver session (default *port*\=1234)
451ERST
2313086a 452
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453 {
454 .name = "x",
455 .args_type = "fmt:/,addr:l",
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456 .params = "/fmt addr",
457 .help = "virtual memory dump starting at 'addr'",
2b9e3576 458 .cmd = hmp_memory_dump,
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459 },
460
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461SRST
462``x/``\ *fmt* *addr*
463 Virtual memory dump starting at *addr*.
464ERST
2313086a 465
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466 {
467 .name = "xp",
468 .args_type = "fmt:/,addr:l",
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469 .params = "/fmt addr",
470 .help = "physical memory dump starting at 'addr'",
2b9e3576 471 .cmd = hmp_physical_memory_dump,
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472 },
473
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474SRST
475``xp /``\ *fmt* *addr*
476 Physical memory dump starting at *addr*.
477
478 *fmt* is a format which tells the command how to format the
479 data. Its syntax is: ``/{count}{format}{size}``
480
481 *count*
482 is the number of items to be dumped.
483 *format*
484 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
485 c (char) or i (asm instruction).
486 *size*
487 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
488 ``h`` or ``w`` can be specified with the ``i`` format to
489 respectively select 16 or 32 bit code instruction size.
490
491 Examples:
492
493 Dump 10 instructions at the current instruction pointer::
494
495 (qemu) x/10i $eip
496 0x90107063: ret
497 0x90107064: sti
498 0x90107065: lea 0x0(%esi,1),%esi
499 0x90107069: lea 0x0(%edi,1),%edi
500 0x90107070: ret
501 0x90107071: jmp 0x90107080
502 0x90107073: nop
503 0x90107074: nop
504 0x90107075: nop
505 0x90107076: nop
506
507 Dump 80 16 bit values at the start of the video memory::
508
509 (qemu) xp/80hx 0xb8000
510 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
511 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
512 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
513 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
514 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
515 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
516 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
517 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
518 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
519 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
520
521ERST
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522
523 {
524 .name = "gpa2hva",
525 .args_type = "addr:l",
526 .params = "addr",
527 .help = "print the host virtual address corresponding to a guest physical address",
528 .cmd = hmp_gpa2hva,
529 },
530
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531SRST
532``gpa2hva`` *addr*
533 Print the host virtual address at which the guest's physical address *addr*
534 is mapped.
535ERST
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536
537#ifdef CONFIG_LINUX
538 {
539 .name = "gpa2hpa",
540 .args_type = "addr:l",
541 .params = "addr",
542 .help = "print the host physical address corresponding to a guest physical address",
543 .cmd = hmp_gpa2hpa,
544 },
545#endif
546
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547SRST
548``gpa2hpa`` *addr*
549 Print the host physical address at which the guest's physical address *addr*
550 is mapped.
551ERST
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552
553 {
554 .name = "gva2gpa",
555 .args_type = "addr:l",
556 .params = "addr",
557 .help = "print the guest physical address corresponding to a guest virtual address",
558 .cmd = hmp_gva2gpa,
559 },
560
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561SRST
562``gva2gpa`` *addr*
563 Print the guest physical address at which the guest's virtual address *addr*
564 is mapped based on the mapping for the current CPU.
565ERST
2313086a 566
d7f9b689 567 {
ff688cd2 568 .name = "print|p",
d7f9b689 569 .args_type = "fmt:/,val:l",
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570 .params = "/fmt expr",
571 .help = "print expression value (use $reg for CPU register access)",
cbf81997 572 .cmd = hmp_print,
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573 },
574
a6b30bca 575SRST
ff688cd2 576``print`` or ``p/``\ *fmt* *expr*
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577 Print expression value. Only the *format* part of *fmt* is
578 used.
579ERST
2313086a 580
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581 {
582 .name = "i",
583 .args_type = "fmt:/,addr:i,index:i.",
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584 .params = "/fmt addr",
585 .help = "I/O port read",
2b9e3576 586 .cmd = hmp_ioport_read,
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587 },
588
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589SRST
590``i/``\ *fmt* *addr* [.\ *index*\ ]
591 Read I/O port.
592ERST
2313086a 593
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594 {
595 .name = "o",
596 .args_type = "fmt:/,addr:i,val:i",
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597 .params = "/fmt addr value",
598 .help = "I/O port write",
2b9e3576 599 .cmd = hmp_ioport_write,
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600 },
601
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602SRST
603``o/``\ *fmt* *addr* *val*
604 Write to I/O port.
605ERST
2313086a 606
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607 {
608 .name = "sendkey",
2ef20c15 609 .args_type = "keys:s,hold-time:i?",
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610 .params = "keys [hold_ms]",
611 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
2b9e3576 612 .cmd = hmp_sendkey,
29136cd8 613 .command_completion = sendkey_completion,
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614 },
615
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616SRST
617``sendkey`` *keys*
618 Send *keys* to the guest. *keys* could be the name of the
619 key or the raw value in hexadecimal format. Use ``-`` to press
620 several keys simultaneously. Example::
621
622 sendkey ctrl-alt-f1
623
624 This command is useful to send keys that your graphical user interface
625 intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
626ERST
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627 {
628 .name = "sync-profile",
629 .args_type = "op:s?",
630 .params = "[on|off|reset]",
631 .help = "enable, disable or reset synchronization profiling. "
632 "With no arguments, prints whether profiling is on or off.",
633 .cmd = hmp_sync_profile,
634 },
635
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636SRST
637``sync-profile [on|off|reset]``
638 Enable, disable or reset synchronization profiling. With no arguments, prints
639 whether profiling is on or off.
640ERST
2313086a 641
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642 {
643 .name = "system_reset",
644 .args_type = "",
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645 .params = "",
646 .help = "reset the system",
2b9e3576 647 .cmd = hmp_system_reset,
d7f9b689
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648 },
649
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650SRST
651``system_reset``
652 Reset the system.
653ERST
2313086a 654
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655 {
656 .name = "system_powerdown",
657 .args_type = "",
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658 .params = "",
659 .help = "send system power down event",
2b9e3576 660 .cmd = hmp_system_powerdown,
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661 },
662
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663SRST
664``system_powerdown``
665 Power down the system (if supported).
666ERST
2313086a 667
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668 {
669 .name = "sum",
670 .args_type = "start:i,size:i",
d7f9b689
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671 .params = "addr size",
672 .help = "compute the checksum of a memory region",
2b9e3576 673 .cmd = hmp_sum,
d7f9b689
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674 },
675
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676SRST
677``sum`` *addr* *size*
678 Compute the checksum of a memory region.
679ERST
2313086a 680
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681 {
682 .name = "device_add",
c7e4e8ce
MA
683 .args_type = "device:O",
684 .params = "driver[,prop=value][,...]",
d7f9b689 685 .help = "add device, like -device on the command line",
2b9e3576 686 .cmd = hmp_device_add,
2da1b3ab 687 .command_completion = device_add_completion,
d7f9b689
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688 },
689
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690SRST
691``device_add`` *config*
692 Add device.
693ERST
3418bd25 694
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695 {
696 .name = "device_del",
697 .args_type = "id:s",
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698 .params = "device",
699 .help = "remove device",
2b9e3576 700 .cmd = hmp_device_del,
2da1b3ab 701 .command_completion = device_del_completion,
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702 },
703
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704SRST
705``device_del`` *id*
706 Remove device *id*. *id* may be a short ID
707 or a QOM object path.
708ERST
3418bd25 709
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710 {
711 .name = "cpu",
712 .args_type = "index:i",
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713 .params = "index",
714 .help = "set the default CPU",
2b9e3576 715 .cmd = hmp_cpu,
d7f9b689 716 },
3418bd25 717
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718SRST
719``cpu`` *index*
720 Set the default CPU.
721ERST
2313086a 722
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723 {
724 .name = "mouse_move",
725 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
d7f9b689
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726 .params = "dx dy [dz]",
727 .help = "send mouse move events",
2b9e3576 728 .cmd = hmp_mouse_move,
d7f9b689
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729 },
730
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731SRST
732``mouse_move`` *dx* *dy* [*dz*]
733 Move the active mouse to the specified coordinates *dx* *dy*
734 with optional scroll axis *dz*.
735ERST
2313086a 736
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737 {
738 .name = "mouse_button",
739 .args_type = "button_state:i",
d7f9b689
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740 .params = "state",
741 .help = "change mouse button state (1=L, 2=M, 4=R)",
2b9e3576 742 .cmd = hmp_mouse_button,
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743 },
744
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745SRST
746``mouse_button`` *val*
747 Change the active mouse button state *val* (1=L, 2=M, 4=R).
748ERST
2313086a 749
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750 {
751 .name = "mouse_set",
752 .args_type = "index:i",
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753 .params = "index",
754 .help = "set which mouse device receives events",
2b9e3576 755 .cmd = hmp_mouse_set,
d7f9b689
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756 },
757
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758SRST
759``mouse_set`` *index*
760 Set which mouse device receives events at given *index*, index
761 can be obtained with::
762
763 info mice
764
765ERST
2313086a 766
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767 {
768 .name = "wavcapture",
f0b9f36d
KZ
769 .args_type = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
770 .params = "path audiodev [frequency [bits [channels]]]",
d7f9b689 771 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
2b9e3576 772 .cmd = hmp_wavcapture,
d7f9b689 773 },
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774SRST
775``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
776 Capture audio into *filename* from *audiodev*, using sample rate
777 *frequency* bits per sample *bits* and number of channels
778 *channels*.
779
780 Defaults:
781
782 - Sample rate = 44100 Hz - CD quality
783 - Bits = 16
784 - Number of channels = 2 - Stereo
785ERST
2313086a 786
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787 {
788 .name = "stopcapture",
789 .args_type = "n:i",
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790 .params = "capture index",
791 .help = "stop capture",
2b9e3576 792 .cmd = hmp_stopcapture,
d7f9b689 793 },
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794SRST
795``stopcapture`` *index*
796 Stop capture with a given *index*, index can be obtained with::
797
798 info capture
799
800ERST
2313086a 801
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802 {
803 .name = "memsave",
804 .args_type = "val:l,size:i,filename:s",
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805 .params = "addr size file",
806 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
2b9e3576 807 .cmd = hmp_memsave,
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808 },
809
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810SRST
811``memsave`` *addr* *size* *file*
812 save to disk virtual memory dump starting at *addr* of size *size*.
813ERST
2313086a 814
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815 {
816 .name = "pmemsave",
817 .args_type = "val:l,size:i,filename:s",
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818 .params = "addr size file",
819 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
2b9e3576 820 .cmd = hmp_pmemsave,
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821 },
822
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823SRST
824``pmemsave`` *addr* *size* *file*
825 save to disk physical memory dump starting at *addr* of size *size*.
826ERST
2313086a 827
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828 {
829 .name = "boot_set",
830 .args_type = "bootdevice:s",
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831 .params = "bootdevice",
832 .help = "define new values for the boot device list",
2b9e3576 833 .cmd = hmp_boot_set,
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834 },
835
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836SRST
837``boot_set`` *bootdevicelist*
838 Define new values for the boot device list. Those values will override
839 the values specified on the command line through the ``-boot`` option.
840
841 The values that can be specified here depend on the machine type, but are
842 the same that can be specified in the ``-boot`` command line option.
843ERST
2313086a 844
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845 {
846 .name = "nmi",
e9b4b432
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847 .args_type = "",
848 .params = "",
9cb805fd 849 .help = "inject an NMI",
2b9e3576 850 .cmd = hmp_nmi,
d7f9b689 851 },
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852SRST
853``nmi`` *cpu*
854 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
855ERST
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856
857 {
3949e594 858 .name = "ringbuf_write",
1f590cf9
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859 .args_type = "device:s,data:s",
860 .params = "device data",
3949e594 861 .help = "Write to a ring buffer character device",
2b9e3576 862 .cmd = hmp_ringbuf_write,
8e597779 863 .command_completion = ringbuf_write_completion,
1f590cf9
LL
864 },
865
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866SRST
867``ringbuf_write`` *device* *data*
868 Write *data* to ring buffer character device *device*.
869 *data* must be a UTF-8 string.
870ERST
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871
872 {
3949e594 873 .name = "ringbuf_read",
49b6d722
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874 .args_type = "device:s,size:i",
875 .params = "device size",
3949e594 876 .help = "Read from a ring buffer character device",
2b9e3576 877 .cmd = hmp_ringbuf_read,
8e597779 878 .command_completion = ringbuf_write_completion,
49b6d722
LL
879 },
880
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881SRST
882``ringbuf_read`` *device*
883 Read and print up to *size* bytes from ring buffer character
884 device *device*.
885 Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
886 character code in hexadecimal. Character ``\`` is printed ``\\``.
887 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
888 NUL characters, after the ring buffer lost data, and when reading
889 stops because the size limit is reached.
890ERST
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891
892 {
893 .name = "announce_self",
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894 .args_type = "interfaces:s?,id:s?",
895 .params = "[interfaces] [id]",
544f6ea3
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896 .help = "Trigger GARP/RARP announcements",
897 .cmd = hmp_announce_self,
898 },
899
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900SRST
901``announce_self``
902 Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
903 updating the network infrastructure after a reconfiguration or some forms
904 of migration. The timings of the round are set by the migration announce
905 parameters. An optional comma separated *interfaces* list restricts the
906 announce to the named set of interfaces. An optional *id* can be used to
907 start a separate announce timer and to change the parameters of it later.
908ERST
2313086a 909
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910 {
911 .name = "migrate",
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912 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
913 .params = "[-d] [-b] [-i] [-r] uri",
fbc3d96c
LS
914 .help = "migrate to URI (using -d to not wait for completion)"
915 "\n\t\t\t -b for migration without shared storage with"
916 " full copy of disk\n\t\t\t -i for migration without "
917 "shared storage with incremental copy of disk "
7a4da28b
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918 "(base image shared between src and destination)"
919 "\n\t\t\t -r to resume a paused migration",
2b9e3576 920 .cmd = hmp_migrate,
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921 },
922
fbc3d96c 923
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924SRST
925``migrate [-d] [-b] [-i]`` *uri*
926 Migrate to *uri* (using -d to not wait for completion).
927
928 ``-b``
929 for migration with full copy of disk
930 ``-i``
931 for migration with incremental copy of disk (base image is shared)
932ERST
2313086a 933
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934 {
935 .name = "migrate_cancel",
936 .args_type = "",
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937 .params = "",
938 .help = "cancel the current VM migration",
2b9e3576 939 .cmd = hmp_migrate_cancel,
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940 },
941
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942SRST
943``migrate_cancel``
944 Cancel the current VM migration.
945ERST
9e1ba4cc 946
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947 {
948 .name = "migrate_continue",
949 .args_type = "state:s",
950 .params = "state",
951 .help = "Continue migration from the given paused state",
952 .cmd = hmp_migrate_continue,
953 },
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954SRST
955``migrate_continue`` *state*
956 Continue migration from the paused state *state*
957ERST
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958
959 {
960 .name = "migrate_incoming",
961 .args_type = "uri:s",
962 .params = "uri",
963 .help = "Continue an incoming migration from an -incoming defer",
2b9e3576 964 .cmd = hmp_migrate_incoming,
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DDAG
965 },
966
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967SRST
968``migrate_incoming`` *uri*
969 Continue an incoming migration using the *uri* (that has the same syntax
970 as the ``-incoming`` option).
971ERST
bf1ae1f4 972
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973 {
974 .name = "migrate_recover",
975 .args_type = "uri:s",
976 .params = "uri",
977 .help = "Continue a paused incoming postcopy migration",
978 .cmd = hmp_migrate_recover,
979 },
980
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981SRST
982``migrate_recover`` *uri*
983 Continue a paused incoming postcopy migration using the *uri*.
984ERST
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985
986 {
987 .name = "migrate_pause",
988 .args_type = "",
989 .params = "",
990 .help = "Pause an ongoing migration (postcopy-only)",
991 .cmd = hmp_migrate_pause,
992 },
993
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994SRST
995``migrate_pause``
996 Pause an ongoing migration. Currently it only supports postcopy.
997ERST
9e1ba4cc 998
00458433
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999 {
1000 .name = "migrate_set_capability",
1001 .args_type = "capability:s,state:b",
1002 .params = "capability state",
1003 .help = "Enable/Disable the usage of a capability for migration",
2b9e3576 1004 .cmd = hmp_migrate_set_capability,
c68a0409 1005 .command_completion = migrate_set_capability_completion,
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1006 },
1007
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1008SRST
1009``migrate_set_capability`` *capability* *state*
1010 Enable/Disable the usage of a capability *capability* for migration.
1011ERST
50e9a629
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1012
1013 {
1014 .name = "migrate_set_parameter",
69ef1f36 1015 .args_type = "parameter:s,value:s",
50e9a629
LL
1016 .params = "parameter value",
1017 .help = "Set the parameter for migration",
2b9e3576 1018 .cmd = hmp_migrate_set_parameter,
50e9a629
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1019 .command_completion = migrate_set_parameter_completion,
1020 },
1021
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1022SRST
1023``migrate_set_parameter`` *parameter* *value*
1024 Set the parameter *parameter* for migration.
1025ERST
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1026
1027 {
1028 .name = "migrate_start_postcopy",
1029 .args_type = "",
1030 .params = "",
a54d340b 1031 .help = "Followup to a migration command to switch the migration"
32c3db5b 1032 " to postcopy mode. The postcopy-ram capability must "
c2eb7f21
GK
1033 "be set on both source and destination before the "
1034 "original migration command .",
2b9e3576 1035 .cmd = hmp_migrate_start_postcopy,
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1036 },
1037
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1038SRST
1039``migrate_start_postcopy``
1040 Switch in-progress migration to postcopy mode. Ignored after the end of
1041 migration (or once already in postcopy).
1042ERST
d89e666e 1043
51e47cf8 1044#ifdef CONFIG_REPLICATION
d89e666e
HZ
1045 {
1046 .name = "x_colo_lost_heartbeat",
1047 .args_type = "",
1048 .params = "",
1049 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1050 "a failover or takeover is needed.",
1051 .cmd = hmp_x_colo_lost_heartbeat,
1052 },
51e47cf8 1053#endif
d89e666e 1054
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1055SRST
1056``x_colo_lost_heartbeat``
1057 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1058ERST
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1059
1060 {
2ea720db
JS
1061 .name = "client_migrate_info",
1062 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1063 .params = "protocol hostname port tls-port cert-subject",
13cadefb 1064 .help = "set migration information for remote display",
2b9e3576 1065 .cmd = hmp_client_migrate_info,
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1066 },
1067
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1068SRST
1069``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
1070 Set migration information for remote display. This makes the server
1071 ask the client to automatically reconnect using the new parameters
1072 once migration finished successfully. Only implemented for SPICE.
1073ERST
e866e239 1074
783e9b48
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1075 {
1076 .name = "dump-guest-memory",
e6549197
SB
1077 .args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,raw:-R,filename:F,begin:l?,length:l?",
1078 .params = "[-p] [-d] [-z|-l|-s|-w] [-R] filename [begin length]",
c20499d9
QN
1079 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1080 "-p: do paging to get guest's memory mapping.\n\t\t\t"
228de9cf 1081 "-d: return immediately (do not wait for completion).\n\t\t\t"
1b7a0f75
QN
1082 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1083 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1084 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
e6549197
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1085 "-R: when using kdump (-z, -l, -s), use raw rather than makedumpfile-flattened\n\t\t\t"
1086 " format\n\t\t\t"
2da91b54 1087 "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
f5daa829 1088 " for Windows x86 and x64 guests with vmcoreinfo driver only.\n\t\t\t"
c20499d9
QN
1089 "begin: the starting physical address.\n\t\t\t"
1090 "length: the memory size, in bytes.",
2b9e3576 1091 .cmd = hmp_dump_guest_memory,
783e9b48
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1092 },
1093
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1094SRST
1095``dump-guest-memory [-p]`` *filename* *begin* *length*
1096 \
1097``dump-guest-memory [-z|-l|-s|-w]`` *filename*
1098 Dump guest memory to *protocol*. The file can be processed with crash or
1099 gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.
1100
1101 ``-p``
1102 do paging to get guest's memory mapping.
1103 ``-z``
1104 dump in kdump-compressed format, with zlib compression.
1105 ``-l``
1106 dump in kdump-compressed format, with lzo compression.
1107 ``-s``
1108 dump in kdump-compressed format, with snappy compression.
e6549197
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1109 ``-R``
1110 when using kdump (-z, -l, -s), use raw rather than makedumpfile-flattened
1111 format
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1112 ``-w``
1113 dump in Windows crashdump format (can be used instead of ELF-dump converting),
1114 for Windows x64 guests with vmcoreinfo driver only
1115 *filename*
1116 dump file name.
1117 *begin*
1118 the starting physical address. It's optional, and should be
1119 specified together with *length*.
1120 *length*
1121 the memory size, in bytes. It's optional, and should be specified
1122 together with *begin*.
1123
1124ERST
783e9b48 1125
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1126#if defined(TARGET_S390X)
1127 {
1128 .name = "dump-skeys",
1129 .args_type = "filename:F",
1130 .params = "",
1131 .help = "Save guest storage keys into file 'filename'.\n",
2b9e3576 1132 .cmd = hmp_dump_skeys,
a4538a5c
JH
1133 },
1134#endif
1135
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1136SRST
1137``dump-skeys`` *filename*
1138 Save guest storage keys to a file.
1139ERST
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1140
1141#if defined(TARGET_S390X)
1142 {
1143 .name = "migration_mode",
1144 .args_type = "mode:i",
1145 .params = "mode",
1146 .help = "Enables or disables migration mode\n",
1147 .cmd = hmp_migrationmode,
1148 },
1149#endif
1150
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1151SRST
1152``migration_mode`` *mode*
1153 Enables or disables migration mode.
1154ERST
a4538a5c 1155
e866e239 1156 {
2ea720db 1157 .name = "snapshot_blkdev",
6cc2a415
PB
1158 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1159 .params = "[-n] device [new-image-file] [format]",
2ea720db
JS
1160 .help = "initiates a live snapshot\n\t\t\t"
1161 "of device. If a new image file is specified, the\n\t\t\t"
1162 "new image file will become the new root image.\n\t\t\t"
1163 "If format is specified, the snapshot file will\n\t\t\t"
775ca88e 1164 "be created in that format.\n\t\t\t"
6cc2a415
PB
1165 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1166 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1167 "recreating it from scratch.",
2b9e3576 1168 .cmd = hmp_snapshot_blkdev,
e866e239
GH
1169 },
1170
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1171SRST
1172``snapshot_blkdev``
1173 Snapshot device, using snapshot file as target if provided
1174ERST
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1175
1176 {
1177 .name = "snapshot_blkdev_internal",
1178 .args_type = "device:B,name:s",
1179 .params = "device name",
1180 .help = "take an internal snapshot of device.\n\t\t\t"
1181 "The format of the image used by device must\n\t\t\t"
1182 "support it, such as qcow2.\n\t\t\t",
2b9e3576 1183 .cmd = hmp_snapshot_blkdev_internal,
775ca88e
WX
1184 },
1185
a6b30bca
PM
1186SRST
1187``snapshot_blkdev_internal``
1188 Take an internal snapshot on device if it support
1189ERST
7a4ed2ee
WX
1190
1191 {
1192 .name = "snapshot_delete_blkdev_internal",
1193 .args_type = "device:B,name:s,id:s?",
1194 .params = "device name [id]",
1195 .help = "delete an internal snapshot of device.\n\t\t\t"
1196 "If id is specified, qemu will try delete\n\t\t\t"
1197 "the snapshot matching both id and name.\n\t\t\t"
1198 "The format of the image used by device must\n\t\t\t"
1199 "support it, such as qcow2.\n\t\t\t",
2b9e3576 1200 .cmd = hmp_snapshot_delete_blkdev_internal,
7a4ed2ee
WX
1201 },
1202
a6b30bca
PM
1203SRST
1204``snapshot_delete_blkdev_internal``
1205 Delete an internal snapshot on device if it support
1206ERST
d9b902db
PB
1207
1208 {
1209 .name = "drive_mirror",
1210 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1211 .params = "[-n] [-f] device target [format]",
1212 .help = "initiates live storage\n\t\t\t"
1213 "migration for a device. The device's contents are\n\t\t\t"
1214 "copied to the new image file, including 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",
2b9e3576 1220 .cmd = hmp_drive_mirror,
d9b902db 1221 },
a6b30bca
PM
1222SRST
1223``drive_mirror``
1224 Start mirroring a block device's writes to a new destination,
1225 using the specified target.
1226ERST
de90930a
SH
1227
1228 {
1229 .name = "drive_backup",
13b9414b
PB
1230 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1231 .params = "[-n] [-f] [-c] device target [format]",
de90930a
SH
1232 .help = "initiates a point-in-time\n\t\t\t"
1233 "copy for a device. The device's contents are\n\t\t\t"
1234 "copied to the new image file, excluding data that\n\t\t\t"
1235 "is written after the command is started.\n\t\t\t"
1236 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1237 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1238 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
13b9414b
PB
1239 "so that the result does not need a backing file.\n\t\t\t"
1240 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1241 "(if the target format supports it).\n\t\t\t",
2b9e3576 1242 .cmd = hmp_drive_backup,
de90930a 1243 },
a6b30bca
PM
1244SRST
1245``drive_backup``
e3a6e0da 1246 Start a point-in-time copy of a block device to a specified target.
a6b30bca 1247ERST
2313086a 1248
d7f9b689
LC
1249 {
1250 .name = "drive_add",
abb21ac3
KW
1251 .args_type = "node:-n,pci_addr:s,opts:s",
1252 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
d7f9b689 1253 "[file=file][,if=type][,bus=n]\n"
fb0490f6 1254 "[,unit=m][,media=d][,index=i]\n"
fb0490f6
SH
1255 "[,snapshot=on|off][,cache=on|off]\n"
1256 "[,readonly=on|off][,copy-on-read=on|off]",
d7f9b689 1257 .help = "add drive to PCI storage controller",
2b9e3576 1258 .cmd = hmp_drive_add,
d7f9b689 1259 },
d7f9b689 1260
a6b30bca
PM
1261SRST
1262``drive_add``
1263 Add drive to PCI storage controller.
1264ERST
2ae63bda
IY
1265
1266 {
1267 .name = "pcie_aer_inject_error",
1268 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1269 "id:s,error_status:s,"
1270 "header0:i?,header1:i?,header2:i?,header3:i?,"
1271 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1272 .params = "[-a] [-c] id "
1273 "<error_status> [<tlp header> [<tlp header prefix>]]",
1274 .help = "inject pcie aer error\n\t\t\t"
1275 " -a for advisory non fatal error\n\t\t\t"
1276 " -c for correctable error\n\t\t\t"
1277 "<id> = qdev device id\n\t\t\t"
1278 "<error_status> = error string or 32bit\n\t\t\t"
8ad4e451
ZY
1279 "<tlp header> = 32bit x 4\n\t\t\t"
1280 "<tlp header prefix> = 32bit x 4",
2b9e3576 1281 .cmd = hmp_pcie_aer_inject_error,
2ae63bda
IY
1282 },
1283
a6b30bca
PM
1284SRST
1285``pcie_aer_inject_error``
1286 Inject PCIe AER error
1287ERST
ae82d324
MA
1288
1289 {
1290 .name = "netdev_add",
1291 .args_type = "netdev:O",
5166fe0a 1292 .params = "[user|tap|socket|stream|dgram|vde|bridge|hubport|netmap|vhost-user"
cb039ef3
IM
1293#ifdef CONFIG_AF_XDP
1294 "|af-xdp"
1295#endif
fd8c8c05
VY
1296#ifdef CONFIG_VMNET
1297 "|vmnet-host|vmnet-shared|vmnet-bridged"
1298#endif
1299 "],id=str[,prop=value][,...]",
ae82d324 1300 .help = "add host network device",
2b9e3576 1301 .cmd = hmp_netdev_add,
b162b49a 1302 .command_completion = netdev_add_completion,
48f596c5 1303 .flags = "p",
ae82d324
MA
1304 },
1305
a6b30bca
PM
1306SRST
1307``netdev_add``
1308 Add host network device.
1309ERST
ae82d324
MA
1310
1311 {
1312 .name = "netdev_del",
1313 .args_type = "id:s",
1314 .params = "id",
1315 .help = "remove host network device",
2b9e3576 1316 .cmd = hmp_netdev_del,
11b389f2 1317 .command_completion = netdev_del_completion,
48f596c5 1318 .flags = "p",
ae82d324
MA
1319 },
1320
a6b30bca
PM
1321SRST
1322``netdev_del``
1323 Remove host network device.
1324ERST
cff8b2c6
PB
1325
1326 {
1327 .name = "object_add",
da0a932b 1328 .args_type = "object:S",
cff8b2c6
PB
1329 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1330 .help = "create QOM object",
2b9e3576 1331 .cmd = hmp_object_add,
bfa40f77 1332 .command_completion = object_add_completion,
9e33013b 1333 .flags = "p",
cff8b2c6
PB
1334 },
1335
a6b30bca
PM
1336SRST
1337``object_add``
1338 Create QOM object.
1339ERST
ab2d0531
PB
1340
1341 {
1342 .name = "object_del",
1343 .args_type = "id:s",
1344 .params = "id",
1345 .help = "destroy QOM object",
2b9e3576 1346 .cmd = hmp_object_del,
bfa40f77 1347 .command_completion = object_del_completion,
9e33013b 1348 .flags = "p",
ab2d0531
PB
1349 },
1350
a6b30bca
PM
1351SRST
1352``object_del``
1353 Destroy QOM object.
1354ERST
2313086a
BS
1355
1356#ifdef CONFIG_SLIRP
d7f9b689
LC
1357 {
1358 .name = "hostfwd_add",
b4983c57
TH
1359 .args_type = "arg1:s,arg2:s?",
1360 .params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
d7f9b689 1361 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
2b9e3576 1362 .cmd = hmp_hostfwd_add,
d7f9b689 1363 },
21413d68 1364#endif
a6b30bca
PM
1365SRST
1366``hostfwd_add``
1367 Redirect TCP or UDP connections from host to guest (requires -net user).
1368ERST
d7f9b689 1369
21413d68 1370#ifdef CONFIG_SLIRP
d7f9b689
LC
1371 {
1372 .name = "hostfwd_remove",
b4983c57
TH
1373 .args_type = "arg1:s,arg2:s?",
1374 .params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport",
d7f9b689 1375 .help = "remove host-to-guest TCP or UDP redirection",
2b9e3576 1376 .cmd = hmp_hostfwd_remove,
d7f9b689
LC
1377 },
1378
2313086a 1379#endif
a6b30bca
PM
1380SRST
1381``hostfwd_remove``
1382 Remove host-to-guest TCP or UDP redirection.
1383ERST
2313086a 1384
d7f9b689
LC
1385 {
1386 .name = "balloon",
3b0bd6ec 1387 .args_type = "value:M",
d7f9b689 1388 .params = "target",
3c05613a 1389 .help = "request VM to change its memory allocation (in MB)",
2b9e3576 1390 .cmd = hmp_balloon,
d7f9b689
LC
1391 },
1392
a6b30bca
PM
1393SRST
1394``balloon`` *value*
1395 Request VM to change its memory allocation to *value* (in MB).
1396ERST
2313086a 1397
d7f9b689
LC
1398 {
1399 .name = "set_link",
c9b26a4c
MA
1400 .args_type = "name:s,up:b",
1401 .params = "name on|off",
d7f9b689 1402 .help = "change the link status of a network adapter",
2b9e3576 1403 .cmd = hmp_set_link,
40d19394 1404 .command_completion = set_link_completion,
d7f9b689
LC
1405 },
1406
a6b30bca
PM
1407SRST
1408``set_link`` *name* ``[on|off]``
1409 Switch link *name* on (i.e. up) or off (i.e. down).
1410ERST
2313086a 1411
d7f9b689
LC
1412 {
1413 .name = "watchdog_action",
1414 .args_type = "action:s",
d7f9b689
LC
1415 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1416 .help = "change watchdog action",
2b9e3576 1417 .cmd = hmp_watchdog_action,
d0ece345 1418 .command_completion = watchdog_action_completion,
d7f9b689
LC
1419 },
1420
a6b30bca
PM
1421SRST
1422``watchdog_action``
1423 Change watchdog action.
1424ERST
2313086a 1425
4057725f
PB
1426 {
1427 .name = "nbd_server_start",
1428 .args_type = "all:-a,writable:-w,uri:s",
1429 .params = "nbd_server_start [-a] [-w] host:port",
1430 .help = "serve block devices on the given host and port",
2b9e3576 1431 .cmd = hmp_nbd_server_start,
f55ba801 1432 .flags = "p",
4057725f 1433 },
a6b30bca
PM
1434SRST
1435``nbd_server_start`` *host*:*port*
1436 Start an NBD server on the given host and/or port. If the ``-a``
1437 option is included, all of the virtual machine's block devices that
1438 have an inserted media on them are automatically exported; in this case,
1439 the ``-w`` option makes the devices writable too.
1440ERST
4057725f
PB
1441
1442 {
1443 .name = "nbd_server_add",
dba49323
EB
1444 .args_type = "writable:-w,device:B,name:s?",
1445 .params = "nbd_server_add [-w] device [name]",
4057725f 1446 .help = "export a block device via NBD",
2b9e3576 1447 .cmd = hmp_nbd_server_add,
f55ba801 1448 .flags = "p",
4057725f 1449 },
a6b30bca
PM
1450SRST
1451``nbd_server_add`` *device* [ *name* ]
1452 Export a block device through QEMU's NBD server, which must be started
1453 beforehand with ``nbd_server_start``. The ``-w`` option makes the
1454 exported device writable too. The export name is controlled by *name*,
1455 defaulting to *device*.
1456ERST
08fb10a7
EB
1457
1458 {
1459 .name = "nbd_server_remove",
1460 .args_type = "force:-f,name:s",
1461 .params = "nbd_server_remove [-f] name",
1462 .help = "remove an export previously exposed via NBD",
1463 .cmd = hmp_nbd_server_remove,
f55ba801 1464 .flags = "p",
08fb10a7 1465 },
a6b30bca
PM
1466SRST
1467``nbd_server_remove [-f]`` *name*
1468 Stop exporting a block device through QEMU's NBD server, which was
1469 previously started with ``nbd_server_add``. The ``-f``
1470 option forces the server to drop the export immediately even if
1471 clients are connected; otherwise the command fails unless there are no
1472 clients.
1473ERST
4057725f
PB
1474
1475 {
1476 .name = "nbd_server_stop",
1477 .args_type = "",
1478 .params = "nbd_server_stop",
1479 .help = "stop serving block devices using the NBD protocol",
2b9e3576 1480 .cmd = hmp_nbd_server_stop,
f55ba801 1481 .flags = "p",
4057725f 1482 },
a6b30bca
PM
1483SRST
1484``nbd_server_stop``
1485 Stop the QEMU embedded NBD server.
1486ERST
4057725f
PB
1487
1488
79c4f6b0 1489#if defined(TARGET_I386)
d7f9b689
LC
1490
1491 {
1492 .name = "mce",
31ce5e0c
JD
1493 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1494 .params = "[-b] cpu bank status mcgstatus addr misc",
1495 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
2b9e3576 1496 .cmd = hmp_mce,
d7f9b689
LC
1497 },
1498
79c4f6b0 1499#endif
a6b30bca
PM
1500SRST
1501``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
1502 Inject an MCE on the given CPU (x86 only).
1503ERST
f07918fd 1504
4bf21c7f 1505#ifdef CONFIG_POSIX
d7f9b689
LC
1506 {
1507 .name = "getfd",
1508 .args_type = "fdname:s",
d7f9b689
LC
1509 .params = "getfd name",
1510 .help = "receive a file descriptor via SCM rights and assign it a name",
2b9e3576 1511 .cmd = hmp_getfd,
f55ba801 1512 .flags = "p",
d7f9b689
LC
1513 },
1514
a6b30bca
PM
1515SRST
1516``getfd`` *fdname*
1517 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1518 mechanism on unix sockets, it is stored using the name *fdname* for
1519 later use by other monitor commands.
1520ERST
4bf21c7f 1521#endif
f07918fd 1522
d7f9b689
LC
1523 {
1524 .name = "closefd",
1525 .args_type = "fdname:s",
d7f9b689
LC
1526 .params = "closefd name",
1527 .help = "close a file descriptor previously passed via SCM rights",
2b9e3576 1528 .cmd = hmp_closefd,
f55ba801 1529 .flags = "p",
d7f9b689
LC
1530 },
1531
a6b30bca
PM
1532SRST
1533``closefd`` *fdname*
1534 Close the file descriptor previously assigned to *fdname* using the
1535 ``getfd`` command. This is only needed if the file descriptor was never
1536 used by another monitor command.
1537ERST
a3a55a2e 1538
727f005e
ZYW
1539 {
1540 .name = "block_set_io_throttle",
1541 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1542 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1543 .help = "change I/O throttle limits for a block drive",
2b9e3576 1544 .cmd = hmp_block_set_io_throttle,
f55ba801 1545 .flags = "p",
727f005e
ZYW
1546 },
1547
a6b30bca
PM
1548SRST
1549``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
1550 Change I/O throttle limits for a block drive to
1551 *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
1552 *device* can be a block device name, a qdev ID or a QOM path.
1553ERST
7572150c
GH
1554
1555 {
1556 .name = "set_password",
675fd3c9
SR
1557 .args_type = "protocol:s,password:s,display:-ds,connected:s?",
1558 .params = "protocol password [-d display] [action-if-connected]",
7572150c 1559 .help = "set spice/vnc password",
2b9e3576 1560 .cmd = hmp_set_password,
7572150c
GH
1561 },
1562
a6b30bca 1563SRST
675fd3c9
SR
1564``set_password [ vnc | spice ] password [ -d display ] [ action-if-connected ]``
1565 Change spice/vnc password. *display* can be used with 'vnc' to specify
1566 which display to set the password on. *action-if-connected* specifies
1567 what should happen in case a connection is established: *fail* makes
1568 the password change fail. *disconnect* changes the password and
8982552e
MA
1569 disconnects the client. *keep* changes the password and keeps the
1570 connection up. *keep* is the default.
a6b30bca 1571ERST
7572150c
GH
1572
1573 {
1574 .name = "expire_password",
675fd3c9
SR
1575 .args_type = "protocol:s,time:s,display:-ds",
1576 .params = "protocol time [-d display]",
7572150c 1577 .help = "set spice/vnc password expire-time",
2b9e3576 1578 .cmd = hmp_expire_password,
7572150c
GH
1579 },
1580
a6b30bca 1581SRST
675fd3c9
SR
1582``expire_password [ vnc | spice ] expire-time [ -d display ]``
1583 Specify when a password for spice/vnc becomes invalid.
1584 *display* behaves the same as in ``set_password``.
1585 *expire-time* accepts:
a6b30bca
PM
1586
1587 ``now``
1588 Invalidate password instantly.
1589 ``never``
1590 Password stays valid forever.
1591 ``+``\ *nsec*
1592 Password stays valid for *nsec* seconds starting now.
1593 *nsec*
1594 Password is invalidated at the given time. *nsec* are the seconds
1595 passed since 1970, i.e. unix epoch.
1596
1597ERST
f1088908 1598
46920825
GH
1599 {
1600 .name = "chardev-add",
1601 .args_type = "args:s",
1602 .params = "args",
1603 .help = "add chardev",
2b9e3576 1604 .cmd = hmp_chardev_add,
13e315da 1605 .command_completion = chardev_add_completion,
46920825
GH
1606 },
1607
a6b30bca
PM
1608SRST
1609``chardev-add`` *args*
1610 chardev-add accepts the same parameters as the -chardev command line switch.
1611ERST
75b60160
AN
1612
1613 {
1614 .name = "chardev-change",
1615 .args_type = "id:s,args:s",
1616 .params = "id args",
1617 .help = "change chardev",
1618 .cmd = hmp_chardev_change,
1619 },
1620
a6b30bca
PM
1621SRST
1622``chardev-change`` *args*
1623 chardev-change accepts existing chardev *id* and then the same arguments
1624 as the -chardev command line switch (except for "id").
1625ERST
46920825
GH
1626
1627 {
1628 .name = "chardev-remove",
1629 .args_type = "id:s",
1630 .params = "id",
1631 .help = "remove chardev",
2b9e3576 1632 .cmd = hmp_chardev_remove,
6297d9a2 1633 .command_completion = chardev_remove_completion,
46920825
GH
1634 },
1635
a6b30bca
PM
1636SRST
1637``chardev-remove`` *id*
1638 Removes the chardev *id*.
1639ERST
bd1d5ad9
SF
1640
1641 {
1642 .name = "chardev-send-break",
1643 .args_type = "id:s",
1644 .params = "id",
1645 .help = "send a break on chardev",
1646 .cmd = hmp_chardev_send_break,
1647 .command_completion = chardev_remove_completion,
1648 },
1649
a6b30bca
PM
1650SRST
1651``chardev-send-break`` *id*
1652 Send a break on the chardev *id*.
1653ERST
587da2c3
KW
1654
1655 {
1656 .name = "qemu-io",
89b6fc45
KW
1657 .args_type = "qdev:-d,device:B,command:s",
1658 .params = "[-d] [device] \"[command]\"",
1659 .help = "run a qemu-io command on a block device\n\t\t\t"
1660 "-d: [device] is a device ID rather than a "
1661 "drive ID or node name",
2b9e3576 1662 .cmd = hmp_qemu_io,
587da2c3
KW
1663 },
1664
a6b30bca
PM
1665SRST
1666``qemu-io`` *device* *command*
1667 Executes a qemu-io command on the given block device.
1668ERST
abf23329 1669
89d7fa9e
AF
1670 {
1671 .name = "qom-list",
1672 .args_type = "path:s?",
1673 .params = "path",
1674 .help = "list QOM properties",
2b9e3576 1675 .cmd = hmp_qom_list,
8c7c7ecb 1676 .flags = "p",
89d7fa9e
AF
1677 },
1678
a6b30bca
PM
1679SRST
1680``qom-list`` [*path*]
1681 Print QOM properties of object at location *path*
1682ERST
c0e6ee9e 1683
89cf4fe3
DDAG
1684 {
1685 .name = "qom-get",
1686 .args_type = "path:s,property:s",
1687 .params = "path property",
1688 .help = "print QOM property",
1689 .cmd = hmp_qom_get,
1690 .flags = "p",
1691 },
1692
1693SRST
1694``qom-get`` *path* *property*
1695 Print QOM property *property* of object at location *path*
1696ERST
1697
c0e6ee9e
AF
1698 {
1699 .name = "qom-set",
2d9e3dd9
DH
1700 .args_type = "json:-j,path:s,property:s,value:S",
1701 .params = "[-j] path property value",
1702 .help = "set QOM property.\n\t\t\t"
1703 "-j: the value is specified in json format.",
2b9e3576 1704 .cmd = hmp_qom_set,
8c7c7ecb 1705 .flags = "p",
c0e6ee9e
AF
1706 },
1707
a6b30bca
PM
1708SRST
1709``qom-set`` *path* *property* *value*
1710 Set QOM property *property* of object at location *path* to value *value*
1711ERST
b40292e7 1712
e7510671
PD
1713 {
1714 .name = "replay_break",
ae49ce00 1715 .args_type = "icount:l",
e7510671
PD
1716 .params = "icount",
1717 .help = "set breakpoint at the specified instruction count",
1718 .cmd = hmp_replay_break,
1719 },
1720
1721SRST
1722``replay_break`` *icount*
1723 Set replay breakpoint at instruction count *icount*.
1724 Execution stops when the specified instruction is reached.
1725 There can be at most one breakpoint. When breakpoint is set, any prior
1726 one is removed. The breakpoint may be set only in replay mode and only
1727 "in the future", i.e. at instruction counts greater than the current one.
1728 The current instruction count can be observed with ``info replay``.
1729ERST
1730
1731 {
1732 .name = "replay_delete_break",
1733 .args_type = "",
1734 .params = "",
1735 .help = "remove replay breakpoint",
1736 .cmd = hmp_replay_delete_break,
1737 },
1738
1739SRST
1740``replay_delete_break``
1741 Remove replay breakpoint which was previously set with ``replay_break``.
1742 The command is ignored when there are no replay breakpoints.
1743ERST
1744
f6baed3d
PD
1745 {
1746 .name = "replay_seek",
ae49ce00 1747 .args_type = "icount:l",
f6baed3d
PD
1748 .params = "icount",
1749 .help = "replay execution to the specified instruction count",
1750 .cmd = hmp_replay_seek,
1751 },
1752
1753SRST
1754``replay_seek`` *icount*
1755 Automatically proceed to the instruction count *icount*, when
1756 replaying the execution. The command automatically loads nearest
1757 snapshot and replays the execution to find the desired instruction.
1758 When there is no preceding snapshot or the execution is not replayed,
1759 then the command fails.
1760 *icount* for the reference may be observed with ``info replay`` command.
1761ERST
1762
a4a571d9
PX
1763 {
1764 .name = "calc_dirty_rate",
826b8bc8
HH
1765 .args_type = "dirty_ring:-r,dirty_bitmap:-b,second:l,sample_pages_per_GB:l?",
1766 .params = "[-r] [-b] second [sample_pages_per_GB]",
1767 .help = "start a round of guest dirty rate measurement (using -r to"
1768 "\n\t\t\t specify dirty ring as the method of calculation and"
1769 "\n\t\t\t -b to specify dirty bitmap as method of calculation)",
a4a571d9
PX
1770 .cmd = hmp_calc_dirty_rate,
1771 },
f3b2e38c
HH
1772
1773SRST
22269b04
DDAG
1774``calc_dirty_rate`` *second*
1775 Start a round of dirty rate measurement with the period specified in *second*.
1776 The result of the dirty rate measurement may be observed with ``info
1777 dirty_rate`` command.
f3b2e38c
HH
1778ERST
1779
1780 {
1781 .name = "set_vcpu_dirty_limit",
1782 .args_type = "dirty_rate:l,cpu_index:l?",
1783 .params = "dirty_rate [cpu_index]",
1784 .help = "set dirty page rate limit, use cpu_index to set limit"
1785 "\n\t\t\t\t\t on a specified virtual cpu",
1786 .cmd = hmp_set_vcpu_dirty_limit,
1787 },
1788
1789SRST
22269b04
DDAG
1790``set_vcpu_dirty_limit``
1791 Set dirty page rate limit on virtual CPU, the information about all the
f3b2e38c
HH
1792 virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
1793 command.
1794ERST
1795
1796 {
1797 .name = "cancel_vcpu_dirty_limit",
1798 .args_type = "cpu_index:l?",
1799 .params = "[cpu_index]",
1800 .help = "cancel dirty page rate limit, use cpu_index to cancel"
1801 "\n\t\t\t\t\t limit on a specified virtual cpu",
1802 .cmd = hmp_cancel_vcpu_dirty_limit,
1803 },
22269b04
DDAG
1804
1805SRST
1806``cancel_vcpu_dirty_limit``
1807 Cancel dirty page rate limit on virtual CPU, the information about all the
1808 virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
1809 command.
1810ERST
1811
1812 {
1813 .name = "info",
1814 .args_type = "item:s?",
1815 .params = "[subcommand]",
1816 .help = "show various information about the system state",
1817 .cmd = hmp_info_help,
1818 .sub_table = hmp_info_cmds,
1819 .flags = "p",
1820 },
bf353ad5
DHB
1821
1822#if defined(CONFIG_FDT)
1823 {
1824 .name = "dumpdtb",
1825 .args_type = "filename:F",
1826 .params = "filename",
1827 .help = "dump the FDT in dtb format to 'filename'",
1828 .cmd = hmp_dumpdtb,
1829 },
1830
1831SRST
1832``dumpdtb`` *filename*
1833 Dump the FDT in dtb format to *filename*.
1834ERST
1835#endif
507cb64d
JM
1836
1837#if defined(CONFIG_XEN_EMU)
1838 {
1839 .name = "xen-event-inject",
1840 .args_type = "port:i",
1841 .params = "port",
1842 .help = "inject event channel",
1843 .cmd = hmp_xen_event_inject,
1844 },
1845
1846SRST
1847``xen-event-inject`` *port*
1848 Notify guest via event channel on port *port*.
1849ERST
1850
1851
1852 {
1853 .name = "xen-event-list",
1854 .args_type = "",
1855 .params = "",
1856 .help = "list event channel state",
1857 .cmd = hmp_xen_event_list,
1858 },
1859
1860SRST
1861``xen-event-list``
1862 List event channels in the guest
1863ERST
1864#endif