]>
Commit | Line | Data |
---|---|---|
1 | From 30e5d63f13a3f7adcd1f473fa0238c3e2e915114 Mon Sep 17 00:00:00 2001 | |
2 | From: Wolfgang Bumiller <w.bumiller@proxmox.com> | |
3 | Date: Wed, 9 Dec 2015 15:20:56 +0100 | |
4 | Subject: [PATCH 16/55] backup: add pve monitor commands | |
5 | ||
6 | --- | |
7 | blockdev.c | 438 +++++++++++++++++++++++++++++++++++++++++++++++++++ | |
8 | hmp-commands-info.hx | 13 ++ | |
9 | hmp-commands.hx | 29 ++++ | |
10 | hmp.c | 61 +++++++ | |
11 | hmp.h | 3 + | |
12 | qapi-schema.json | 89 +++++++++++ | |
13 | qmp-commands.hx | 18 +++ | |
14 | 7 files changed, 651 insertions(+) | |
15 | ||
16 | diff --git a/blockdev.c b/blockdev.c | |
17 | index dfc5204..115524f 100644 | |
18 | --- a/blockdev.c | |
19 | +++ b/blockdev.c | |
20 | @@ -52,6 +52,7 @@ | |
21 | #include "sysemu/arch_init.h" | |
22 | #include "qemu/cutils.h" | |
23 | #include "qemu/help_option.h" | |
24 | +#include "vma.h" | |
25 | ||
26 | static QTAILQ_HEAD(, BlockDriverState) monitor_bdrv_states = | |
27 | QTAILQ_HEAD_INITIALIZER(monitor_bdrv_states); | |
28 | @@ -2989,6 +2990,443 @@ static void block_job_cb(void *opaque, int ret) | |
29 | } | |
30 | } | |
31 | ||
32 | +/* PVE backup related function */ | |
33 | + | |
34 | +static struct PVEBackupState { | |
35 | + Error *error; | |
36 | + bool cancel; | |
37 | + uuid_t uuid; | |
38 | + char uuid_str[37]; | |
39 | + int64_t speed; | |
40 | + time_t start_time; | |
41 | + time_t end_time; | |
42 | + char *backup_file; | |
43 | + VmaWriter *vmaw; | |
44 | + GList *di_list; | |
45 | + size_t total; | |
46 | + size_t transferred; | |
47 | + size_t zero_bytes; | |
48 | +} backup_state; | |
49 | + | |
50 | +typedef struct PVEBackupDevInfo { | |
51 | + BlockDriverState *bs; | |
52 | + size_t size; | |
53 | + uint8_t dev_id; | |
54 | + //bool started; | |
55 | + bool completed; | |
56 | +} PVEBackupDevInfo; | |
57 | + | |
58 | +static void pvebackup_run_next_job(void); | |
59 | + | |
60 | +static int pvebackup_dump_cb(void *opaque, BlockDriverState *target, | |
61 | + int64_t sector_num, int n_sectors, | |
62 | + unsigned char *buf) | |
63 | +{ | |
64 | + PVEBackupDevInfo *di = opaque; | |
65 | + | |
66 | + if (sector_num & 0x7f) { | |
67 | + if (!backup_state.error) { | |
68 | + error_setg(&backup_state.error, | |
69 | + "got unaligned write inside backup dump " | |
70 | + "callback (sector %ld)", sector_num); | |
71 | + } | |
72 | + return -1; // not aligned to cluster size | |
73 | + } | |
74 | + | |
75 | + int64_t cluster_num = sector_num >> 7; | |
76 | + int size = n_sectors * BDRV_SECTOR_SIZE; | |
77 | + | |
78 | + int ret = -1; | |
79 | + | |
80 | + if (backup_state.vmaw) { | |
81 | + size_t zero_bytes = 0; | |
82 | + ret = vma_writer_write(backup_state.vmaw, di->dev_id, cluster_num, | |
83 | + buf, &zero_bytes); | |
84 | + backup_state.zero_bytes += zero_bytes; | |
85 | + } else { | |
86 | + ret = size; | |
87 | + if (!buf) { | |
88 | + backup_state.zero_bytes += size; | |
89 | + } | |
90 | + } | |
91 | + | |
92 | + backup_state.transferred += size; | |
93 | + | |
94 | + return ret; | |
95 | +} | |
96 | + | |
97 | +static void pvebackup_cleanup(void) | |
98 | +{ | |
99 | + backup_state.end_time = time(NULL); | |
100 | + | |
101 | + if (backup_state.vmaw) { | |
102 | + Error *local_err = NULL; | |
103 | + vma_writer_close(backup_state.vmaw, &local_err); | |
104 | + error_propagate(&backup_state.error, local_err); | |
105 | + backup_state.vmaw = NULL; | |
106 | + } | |
107 | + | |
108 | + if (backup_state.di_list) { | |
109 | + GList *l = backup_state.di_list; | |
110 | + while (l) { | |
111 | + PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data; | |
112 | + l = g_list_next(l); | |
113 | + g_free(di); | |
114 | + } | |
115 | + g_list_free(backup_state.di_list); | |
116 | + backup_state.di_list = NULL; | |
117 | + } | |
118 | +} | |
119 | + | |
120 | +static void pvebackup_complete_cb(void *opaque, int ret) | |
121 | +{ | |
122 | + PVEBackupDevInfo *di = opaque; | |
123 | + | |
124 | + assert(backup_state.vmaw); | |
125 | + | |
126 | + di->completed = true; | |
127 | + | |
128 | + if (ret < 0 && !backup_state.error) { | |
129 | + error_setg(&backup_state.error, "job failed with err %d - %s", | |
130 | + ret, strerror(-ret)); | |
131 | + } | |
132 | + | |
133 | + BlockDriverState *bs = di->bs; | |
134 | + | |
135 | + di->bs = NULL; | |
136 | + | |
137 | + vma_writer_close_stream(backup_state.vmaw, di->dev_id); | |
138 | + | |
139 | + block_job_cb(bs, ret); | |
140 | + | |
141 | + if (!backup_state.cancel) { | |
142 | + pvebackup_run_next_job(); | |
143 | + } | |
144 | +} | |
145 | + | |
146 | +static void pvebackup_cancel(void *opaque) | |
147 | +{ | |
148 | + backup_state.cancel = true; | |
149 | + | |
150 | + if (!backup_state.error) { | |
151 | + error_setg(&backup_state.error, "backup cancelled"); | |
152 | + } | |
153 | + | |
154 | + /* drain all i/o (awake jobs waiting for aio) */ | |
155 | + bdrv_drain_all(); | |
156 | + | |
157 | + GList *l = backup_state.di_list; | |
158 | + while (l) { | |
159 | + PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data; | |
160 | + l = g_list_next(l); | |
161 | + if (!di->completed && di->bs) { | |
162 | + BlockJob *job = di->bs->job; | |
163 | + if (job) { | |
164 | + if (!di->completed) { | |
165 | + block_job_cancel_sync(job); | |
166 | + } | |
167 | + } | |
168 | + } | |
169 | + } | |
170 | + | |
171 | + pvebackup_cleanup(); | |
172 | +} | |
173 | + | |
174 | +void qmp_backup_cancel(Error **errp) | |
175 | +{ | |
176 | + Coroutine *co = qemu_coroutine_create(pvebackup_cancel); | |
177 | + qemu_coroutine_enter(co, NULL); | |
178 | + | |
179 | + while (backup_state.vmaw) { | |
180 | + /* vma writer use main aio context */ | |
181 | + aio_poll(qemu_get_aio_context(), true); | |
182 | + } | |
183 | +} | |
184 | + | |
185 | +static void pvebackup_run_next_job(void) | |
186 | +{ | |
187 | + GList *l = backup_state.di_list; | |
188 | + while (l) { | |
189 | + PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data; | |
190 | + l = g_list_next(l); | |
191 | + if (!di->completed && di->bs && di->bs->job) { | |
192 | + BlockJob *job = di->bs->job; | |
193 | + if (block_job_is_paused(job)) { | |
194 | + bool cancel = backup_state.error || backup_state.cancel; | |
195 | + if (cancel) { | |
196 | + block_job_cancel(job); | |
197 | + } else { | |
198 | + block_job_resume(job); | |
199 | + } | |
200 | + } | |
201 | + return; | |
202 | + } | |
203 | + } | |
204 | + | |
205 | + pvebackup_cleanup(); | |
206 | +} | |
207 | + | |
208 | +UuidInfo *qmp_backup(const char *backup_file, bool has_format, | |
209 | + BackupFormat format, | |
210 | + bool has_config_file, const char *config_file, | |
211 | + bool has_devlist, const char *devlist, | |
212 | + bool has_speed, int64_t speed, Error **errp) | |
213 | +{ | |
214 | + BlockBackend *blk; | |
215 | + BlockDriverState *bs = NULL; | |
216 | + Error *local_err = NULL; | |
217 | + uuid_t uuid; | |
218 | + VmaWriter *vmaw = NULL; | |
219 | + gchar **devs = NULL; | |
220 | + GList *di_list = NULL; | |
221 | + GList *l; | |
222 | + UuidInfo *uuid_info; | |
223 | + | |
224 | + if (backup_state.di_list) { | |
225 | + error_set(errp, ERROR_CLASS_GENERIC_ERROR, | |
226 | + "previous backup not finished"); | |
227 | + return NULL; | |
228 | + } | |
229 | + | |
230 | + /* Todo: try to auto-detect format based on file name */ | |
231 | + format = has_format ? format : BACKUP_FORMAT_VMA; | |
232 | + | |
233 | + if (format != BACKUP_FORMAT_VMA) { | |
234 | + error_set(errp, ERROR_CLASS_GENERIC_ERROR, "unknown backup format"); | |
235 | + return NULL; | |
236 | + } | |
237 | + | |
238 | + if (has_devlist) { | |
239 | + devs = g_strsplit_set(devlist, ",;:", -1); | |
240 | + | |
241 | + gchar **d = devs; | |
242 | + while (d && *d) { | |
243 | + blk = blk_by_name(*d); | |
244 | + if (blk) { | |
245 | + bs = blk_bs(blk); | |
246 | + if (bdrv_is_read_only(bs)) { | |
247 | + error_setg(errp, "Node '%s' is read only", *d); | |
248 | + goto err; | |
249 | + } | |
250 | + if (!bdrv_is_inserted(bs)) { | |
251 | + error_setg(errp, QERR_DEVICE_HAS_NO_MEDIUM, *d); | |
252 | + goto err; | |
253 | + } | |
254 | + PVEBackupDevInfo *di = g_new0(PVEBackupDevInfo, 1); | |
255 | + di->bs = bs; | |
256 | + di_list = g_list_append(di_list, di); | |
257 | + } else { | |
258 | + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, | |
259 | + "Device '%s' not found", *d); | |
260 | + goto err; | |
261 | + } | |
262 | + d++; | |
263 | + } | |
264 | + | |
265 | + } else { | |
266 | + | |
267 | + bs = NULL; | |
268 | + while ((bs = bdrv_next(bs))) { | |
269 | + | |
270 | + if (!bdrv_is_inserted(bs) || bdrv_is_read_only(bs)) { | |
271 | + continue; | |
272 | + } | |
273 | + | |
274 | + PVEBackupDevInfo *di = g_new0(PVEBackupDevInfo, 1); | |
275 | + di->bs = bs; | |
276 | + di_list = g_list_append(di_list, di); | |
277 | + } | |
278 | + } | |
279 | + | |
280 | + if (!di_list) { | |
281 | + error_set(errp, ERROR_CLASS_GENERIC_ERROR, "empty device list"); | |
282 | + goto err; | |
283 | + } | |
284 | + | |
285 | + size_t total = 0; | |
286 | + | |
287 | + l = di_list; | |
288 | + while (l) { | |
289 | + PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data; | |
290 | + l = g_list_next(l); | |
291 | + if (bdrv_op_is_blocked(di->bs, BLOCK_OP_TYPE_BACKUP_SOURCE, errp)) { | |
292 | + goto err; | |
293 | + } | |
294 | + | |
295 | + ssize_t size = bdrv_getlength(di->bs); | |
296 | + if (size < 0) { | |
297 | + error_setg_errno(errp, -di->size, "bdrv_getlength failed"); | |
298 | + goto err; | |
299 | + } | |
300 | + di->size = size; | |
301 | + total += size; | |
302 | + } | |
303 | + | |
304 | + uuid_generate(uuid); | |
305 | + | |
306 | + vmaw = vma_writer_create(backup_file, uuid, &local_err); | |
307 | + if (!vmaw) { | |
308 | + if (local_err) { | |
309 | + error_propagate(errp, local_err); | |
310 | + } | |
311 | + goto err; | |
312 | + } | |
313 | + | |
314 | + /* register all devices for vma writer */ | |
315 | + l = di_list; | |
316 | + while (l) { | |
317 | + PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data; | |
318 | + l = g_list_next(l); | |
319 | + | |
320 | + const char *devname = bdrv_get_device_name(di->bs); | |
321 | + di->dev_id = vma_writer_register_stream(vmaw, devname, di->size); | |
322 | + if (di->dev_id <= 0) { | |
323 | + error_set(errp, ERROR_CLASS_GENERIC_ERROR, | |
324 | + "register_stream failed"); | |
325 | + goto err; | |
326 | + } | |
327 | + } | |
328 | + | |
329 | + /* add configuration file to archive */ | |
330 | + if (has_config_file) { | |
331 | + char *cdata = NULL; | |
332 | + gsize clen = 0; | |
333 | + GError *err = NULL; | |
334 | + if (!g_file_get_contents(config_file, &cdata, &clen, &err)) { | |
335 | + error_setg(errp, "unable to read file '%s'", config_file); | |
336 | + goto err; | |
337 | + } | |
338 | + | |
339 | + const char *basename = g_path_get_basename(config_file); | |
340 | + if (vma_writer_add_config(vmaw, basename, cdata, clen) != 0) { | |
341 | + error_setg(errp, "unable to add config data to vma archive"); | |
342 | + g_free(cdata); | |
343 | + goto err; | |
344 | + } | |
345 | + g_free(cdata); | |
346 | + } | |
347 | + | |
348 | + /* initialize global backup_state now */ | |
349 | + | |
350 | + backup_state.cancel = false; | |
351 | + | |
352 | + if (backup_state.error) { | |
353 | + error_free(backup_state.error); | |
354 | + backup_state.error = NULL; | |
355 | + } | |
356 | + | |
357 | + backup_state.speed = (has_speed && speed > 0) ? speed : 0; | |
358 | + | |
359 | + backup_state.start_time = time(NULL); | |
360 | + backup_state.end_time = 0; | |
361 | + | |
362 | + if (backup_state.backup_file) { | |
363 | + g_free(backup_state.backup_file); | |
364 | + } | |
365 | + backup_state.backup_file = g_strdup(backup_file); | |
366 | + | |
367 | + backup_state.vmaw = vmaw; | |
368 | + | |
369 | + uuid_copy(backup_state.uuid, uuid); | |
370 | + uuid_unparse_lower(uuid, backup_state.uuid_str); | |
371 | + | |
372 | + backup_state.di_list = di_list; | |
373 | + | |
374 | + backup_state.total = total; | |
375 | + backup_state.transferred = 0; | |
376 | + backup_state.zero_bytes = 0; | |
377 | + | |
378 | + /* start all jobs (paused state) */ | |
379 | + l = di_list; | |
380 | + while (l) { | |
381 | + PVEBackupDevInfo *di = (PVEBackupDevInfo *)l->data; | |
382 | + l = g_list_next(l); | |
383 | + | |
384 | + backup_start(di->bs, NULL, speed, MIRROR_SYNC_MODE_FULL, NULL, | |
385 | + BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT, | |
386 | + pvebackup_dump_cb, pvebackup_complete_cb, di, | |
387 | + 1, &local_err); | |
388 | + if (local_err != NULL) { | |
389 | + error_setg(&backup_state.error, "backup_job_create failed"); | |
390 | + pvebackup_cancel(NULL); | |
391 | + } | |
392 | + } | |
393 | + | |
394 | + if (!backup_state.error) { | |
395 | + pvebackup_run_next_job(); // run one job | |
396 | + } | |
397 | + | |
398 | + uuid_info = g_malloc0(sizeof(*uuid_info)); | |
399 | + uuid_info->UUID = g_strdup(backup_state.uuid_str); | |
400 | + return uuid_info; | |
401 | + | |
402 | +err: | |
403 | + | |
404 | + l = di_list; | |
405 | + while (l) { | |
406 | + g_free(l->data); | |
407 | + l = g_list_next(l); | |
408 | + } | |
409 | + g_list_free(di_list); | |
410 | + | |
411 | + if (devs) { | |
412 | + g_strfreev(devs); | |
413 | + } | |
414 | + | |
415 | + if (vmaw) { | |
416 | + Error *err = NULL; | |
417 | + vma_writer_close(vmaw, &err); | |
418 | + unlink(backup_file); | |
419 | + } | |
420 | + | |
421 | + return NULL; | |
422 | +} | |
423 | + | |
424 | +BackupStatus *qmp_query_backup(Error **errp) | |
425 | +{ | |
426 | + BackupStatus *info = g_malloc0(sizeof(*info)); | |
427 | + | |
428 | + if (!backup_state.start_time) { | |
429 | + /* not started, return {} */ | |
430 | + return info; | |
431 | + } | |
432 | + | |
433 | + info->has_status = true; | |
434 | + info->has_start_time = true; | |
435 | + info->start_time = backup_state.start_time; | |
436 | + | |
437 | + if (backup_state.backup_file) { | |
438 | + info->has_backup_file = true; | |
439 | + info->backup_file = g_strdup(backup_state.backup_file); | |
440 | + } | |
441 | + | |
442 | + info->has_uuid = true; | |
443 | + info->uuid = g_strdup(backup_state.uuid_str); | |
444 | + | |
445 | + if (backup_state.end_time) { | |
446 | + if (backup_state.error) { | |
447 | + info->status = g_strdup("error"); | |
448 | + info->has_errmsg = true; | |
449 | + info->errmsg = g_strdup(error_get_pretty(backup_state.error)); | |
450 | + } else { | |
451 | + info->status = g_strdup("done"); | |
452 | + } | |
453 | + info->has_end_time = true; | |
454 | + info->end_time = backup_state.end_time; | |
455 | + } else { | |
456 | + info->status = g_strdup("active"); | |
457 | + } | |
458 | + | |
459 | + info->has_total = true; | |
460 | + info->total = backup_state.total; | |
461 | + info->has_zero_bytes = true; | |
462 | + info->zero_bytes = backup_state.zero_bytes; | |
463 | + info->has_transferred = true; | |
464 | + info->transferred = backup_state.transferred; | |
465 | + | |
466 | + return info; | |
467 | +} | |
468 | + | |
469 | void qmp_block_stream(const char *device, | |
470 | bool has_base, const char *base, | |
471 | bool has_backing_file, const char *backing_file, | |
472 | diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx | |
473 | index 52539c3..f872262 100644 | |
474 | --- a/hmp-commands-info.hx | |
475 | +++ b/hmp-commands-info.hx | |
476 | @@ -502,6 +502,19 @@ STEXI | |
477 | Show CPU statistics. | |
478 | ETEXI | |
479 | ||
480 | + { | |
481 | + .name = "backup", | |
482 | + .args_type = "", | |
483 | + .params = "", | |
484 | + .help = "show backup status", | |
485 | + .mhandler.cmd = hmp_info_backup, | |
486 | + }, | |
487 | + | |
488 | +STEXI | |
489 | +@item info backup | |
490 | +show backup status | |
491 | +ETEXI | |
492 | + | |
493 | #if defined(CONFIG_SLIRP) | |
494 | { | |
495 | .name = "usernet", | |
496 | diff --git a/hmp-commands.hx b/hmp-commands.hx | |
497 | index 4f4f60a..63c44f5 100644 | |
498 | --- a/hmp-commands.hx | |
499 | +++ b/hmp-commands.hx | |
500 | @@ -87,6 +87,35 @@ STEXI | |
501 | Copy data from a backing file into a block device. | |
502 | ETEXI | |
503 | ||
504 | + { | |
505 | + .name = "backup", | |
506 | + .args_type = "backupfile:s,speed:o?,devlist:s?", | |
507 | + .params = "backupfile [speed [devlist]]", | |
508 | + .help = "create a VM Backup.", | |
509 | + .mhandler.cmd = hmp_backup, | |
510 | + }, | |
511 | + | |
512 | +STEXI | |
513 | +@item backup | |
514 | +@findex backup | |
515 | +Create a VM backup. | |
516 | +ETEXI | |
517 | + | |
518 | + { | |
519 | + .name = "backup_cancel", | |
520 | + .args_type = "", | |
521 | + .params = "", | |
522 | + .help = "cancel the current VM backup", | |
523 | + .mhandler.cmd = hmp_backup_cancel, | |
524 | + }, | |
525 | + | |
526 | +STEXI | |
527 | +@item backup_cancel | |
528 | +@findex backup_cancel | |
529 | +Cancel the current VM backup. | |
530 | + | |
531 | +ETEXI | |
532 | + | |
533 | { | |
534 | .name = "block_job_set_speed", | |
535 | .args_type = "device:B,speed:o", | |
536 | diff --git a/hmp.c b/hmp.c | |
537 | index fe80757..2d4bf97 100644 | |
538 | --- a/hmp.c | |
539 | +++ b/hmp.c | |
540 | @@ -148,6 +148,44 @@ void hmp_info_mice(Monitor *mon, const QDict *qdict) | |
541 | qapi_free_MouseInfoList(mice_list); | |
542 | } | |
543 | ||
544 | +void hmp_info_backup(Monitor *mon, const QDict *qdict) | |
545 | +{ | |
546 | + BackupStatus *info; | |
547 | + | |
548 | + info = qmp_query_backup(NULL); | |
549 | + if (info->has_status) { | |
550 | + if (info->has_errmsg) { | |
551 | + monitor_printf(mon, "Backup status: %s - %s\n", | |
552 | + info->status, info->errmsg); | |
553 | + } else { | |
554 | + monitor_printf(mon, "Backup status: %s\n", info->status); | |
555 | + } | |
556 | + } | |
557 | + | |
558 | + if (info->has_backup_file) { | |
559 | + monitor_printf(mon, "Start time: %s", ctime(&info->start_time)); | |
560 | + if (info->end_time) { | |
561 | + monitor_printf(mon, "End time: %s", ctime(&info->end_time)); | |
562 | + } | |
563 | + | |
564 | + int per = (info->has_total && info->total && | |
565 | + info->has_transferred && info->transferred) ? | |
566 | + (info->transferred * 100)/info->total : 0; | |
567 | + int zero_per = (info->has_total && info->total && | |
568 | + info->has_zero_bytes && info->zero_bytes) ? | |
569 | + (info->zero_bytes * 100)/info->total : 0; | |
570 | + monitor_printf(mon, "Backup file: %s\n", info->backup_file); | |
571 | + monitor_printf(mon, "Backup uuid: %s\n", info->uuid); | |
572 | + monitor_printf(mon, "Total size: %zd\n", info->total); | |
573 | + monitor_printf(mon, "Transferred bytes: %zd (%d%%)\n", | |
574 | + info->transferred, per); | |
575 | + monitor_printf(mon, "Zero bytes: %zd (%d%%)\n", | |
576 | + info->zero_bytes, zero_per); | |
577 | + } | |
578 | + | |
579 | + qapi_free_BackupStatus(info); | |
580 | +} | |
581 | + | |
582 | void hmp_info_migrate(Monitor *mon, const QDict *qdict) | |
583 | { | |
584 | MigrationInfo *info; | |
585 | @@ -1476,6 +1514,29 @@ void hmp_block_stream(Monitor *mon, const QDict *qdict) | |
586 | hmp_handle_error(mon, &error); | |
587 | } | |
588 | ||
589 | +void hmp_backup_cancel(Monitor *mon, const QDict *qdict) | |
590 | +{ | |
591 | + Error *error = NULL; | |
592 | + | |
593 | + qmp_backup_cancel(&error); | |
594 | + | |
595 | + hmp_handle_error(mon, &error); | |
596 | +} | |
597 | + | |
598 | +void hmp_backup(Monitor *mon, const QDict *qdict) | |
599 | +{ | |
600 | + Error *error = NULL; | |
601 | + | |
602 | + const char *backup_file = qdict_get_str(qdict, "backupfile"); | |
603 | + const char *devlist = qdict_get_try_str(qdict, "devlist"); | |
604 | + int64_t speed = qdict_get_try_int(qdict, "speed", 0); | |
605 | + | |
606 | + qmp_backup(backup_file, true, BACKUP_FORMAT_VMA, false, NULL, !!devlist, | |
607 | + devlist, qdict_haskey(qdict, "speed"), speed, &error); | |
608 | + | |
609 | + hmp_handle_error(mon, &error); | |
610 | +} | |
611 | + | |
612 | void hmp_block_job_set_speed(Monitor *mon, const QDict *qdict) | |
613 | { | |
614 | Error *error = NULL; | |
615 | diff --git a/hmp.h b/hmp.h | |
616 | index 093d65f..c708b3f 100644 | |
617 | --- a/hmp.h | |
618 | +++ b/hmp.h | |
619 | @@ -30,6 +30,7 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict); | |
620 | void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict); | |
621 | void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict); | |
622 | void hmp_info_migrate_cache_size(Monitor *mon, const QDict *qdict); | |
623 | +void hmp_info_backup(Monitor *mon, const QDict *qdict); | |
624 | void hmp_info_cpus(Monitor *mon, const QDict *qdict); | |
625 | void hmp_info_block(Monitor *mon, const QDict *qdict); | |
626 | void hmp_info_blockstats(Monitor *mon, const QDict *qdict); | |
627 | @@ -76,6 +77,8 @@ void hmp_eject(Monitor *mon, const QDict *qdict); | |
628 | void hmp_change(Monitor *mon, const QDict *qdict); | |
629 | void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict); | |
630 | void hmp_block_stream(Monitor *mon, const QDict *qdict); | |
631 | +void hmp_backup(Monitor *mon, const QDict *qdict); | |
632 | +void hmp_backup_cancel(Monitor *mon, const QDict *qdict); | |
633 | void hmp_block_job_set_speed(Monitor *mon, const QDict *qdict); | |
634 | void hmp_block_job_cancel(Monitor *mon, const QDict *qdict); | |
635 | void hmp_block_job_pause(Monitor *mon, const QDict *qdict); | |
636 | diff --git a/qapi-schema.json b/qapi-schema.json | |
637 | index f9ccfe4..4f673d4 100644 | |
638 | --- a/qapi-schema.json | |
639 | +++ b/qapi-schema.json | |
640 | @@ -356,6 +356,95 @@ | |
641 | ## | |
642 | { 'command': 'query-events', 'returns': ['EventInfo'] } | |
643 | ||
644 | +# @BackupStatus: | |
645 | +# | |
646 | +# Detailed backup status. | |
647 | +# | |
648 | +# @status: #optional string describing the current backup status. | |
649 | +# This can be 'active', 'done', 'error'. If this field is not | |
650 | +# returned, no backup process has been initiated | |
651 | +# | |
652 | +# @errmsg: #optional error message (only returned if status is 'error') | |
653 | +# | |
654 | +# @total: #optional total amount of bytes involved in the backup process | |
655 | +# | |
656 | +# @transferred: #optional amount of bytes already backed up. | |
657 | +# | |
658 | +# @zero-bytes: #optional amount of 'zero' bytes detected. | |
659 | +# | |
660 | +# @start-time: #optional time (epoch) when backup job started. | |
661 | +# | |
662 | +# @end-time: #optional time (epoch) when backup job finished. | |
663 | +# | |
664 | +# @backupfile: #optional backup file name | |
665 | +# | |
666 | +# @uuid: #optional uuid for this backup job | |
667 | +# | |
668 | +## | |
669 | +{ 'struct': 'BackupStatus', | |
670 | + 'data': {'*status': 'str', '*errmsg': 'str', '*total': 'int', | |
671 | + '*transferred': 'int', '*zero-bytes': 'int', | |
672 | + '*start-time': 'int', '*end-time': 'int', | |
673 | + '*backup-file': 'str', '*uuid': 'str' } } | |
674 | + | |
675 | +## | |
676 | +# @BackupFormat | |
677 | +# | |
678 | +# An enumeration of supported backup formats. | |
679 | +# | |
680 | +# @vma: Proxmox vma backup format | |
681 | +## | |
682 | +{ 'enum': 'BackupFormat', | |
683 | + 'data': [ 'vma' ] } | |
684 | + | |
685 | +## | |
686 | +# @backup: | |
687 | +# | |
688 | +# Starts a VM backup. | |
689 | +# | |
690 | +# @backup-file: the backup file name | |
691 | +# | |
692 | +# @format: format of the backup file | |
693 | +# | |
694 | +# @config-filename: #optional name of a configuration file to include into | |
695 | +# the backup archive. | |
696 | +# | |
697 | +# @speed: #optional the maximum speed, in bytes per second | |
698 | +# | |
699 | +# @devlist: #optional list of block device names (separated by ',', ';' | |
700 | +# or ':'). By default the backup includes all writable block devices. | |
701 | +# | |
702 | +# Returns: the uuid of the backup job | |
703 | +# | |
704 | +## | |
705 | +{ 'command': 'backup', 'data': { 'backup-file': 'str', | |
706 | + '*format': 'BackupFormat', | |
707 | + '*config-file': 'str', | |
708 | + '*devlist': 'str', '*speed': 'int' }, | |
709 | + 'returns': 'UuidInfo' } | |
710 | + | |
711 | +## | |
712 | +# @query-backup | |
713 | +# | |
714 | +# Returns information about current/last backup task. | |
715 | +# | |
716 | +# Returns: @BackupStatus | |
717 | +# | |
718 | +## | |
719 | +{ 'command': 'query-backup', 'returns': 'BackupStatus' } | |
720 | + | |
721 | +## | |
722 | +# @backup-cancel | |
723 | +# | |
724 | +# Cancel the current executing backup process. | |
725 | +# | |
726 | +# Returns: nothing on success | |
727 | +# | |
728 | +# Notes: This command succeeds even if there is no backup process running. | |
729 | +# | |
730 | +## | |
731 | +{ 'command': 'backup-cancel' } | |
732 | + | |
733 | ## | |
734 | # @MigrationStats | |
735 | # | |
736 | diff --git a/qmp-commands.hx b/qmp-commands.hx | |
737 | index 9388578..3f03c0d 100644 | |
738 | --- a/qmp-commands.hx | |
739 | +++ b/qmp-commands.hx | |
740 | @@ -1279,6 +1279,24 @@ Example: | |
741 | EQMP | |
742 | ||
743 | { | |
744 | + .name = "backup", | |
745 | + .args_type = "backup-file:s,format:s?,config-file:F?,speed:o?,devlist:s?", | |
746 | + .mhandler.cmd_new = qmp_marshal_input_backup, | |
747 | + }, | |
748 | + | |
749 | + { | |
750 | + .name = "backup-cancel", | |
751 | + .args_type = "", | |
752 | + .mhandler.cmd_new = qmp_marshal_input_backup_cancel, | |
753 | + }, | |
754 | + | |
755 | + { | |
756 | + .name = "query-backup", | |
757 | + .args_type = "", | |
758 | + .mhandler.cmd_new = qmp_marshal_input_query_backup, | |
759 | + }, | |
760 | + | |
761 | + { | |
762 | .name = "block-job-set-speed", | |
763 | .args_type = "device:B,speed:o", | |
764 | .mhandler.cmd_new = qmp_marshal_block_job_set_speed, | |
765 | -- | |
766 | 2.1.4 | |
767 |