cirrus: fix off-by-one in cirrus_bitblt_rop_bkwd_transp_*_16
[qemu.git] / qmp.c
1 /*
2 * QEMU Management Protocol
3 *
4 * Copyright IBM, Corp. 2011
5 *
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2. See
10 * the COPYING file in the top-level directory.
11 *
12 * Contributions after 2012-01-13 are licensed under the terms of the
13 * GNU GPL, version 2 or (at your option) any later version.
14 */
15
16 #include "qemu/osdep.h"
17 #include "qemu-version.h"
18 #include "qemu/cutils.h"
19 #include "monitor/monitor.h"
20 #include "sysemu/sysemu.h"
21 #include "qemu/config-file.h"
22 #include "qemu/uuid.h"
23 #include "qmp-commands.h"
24 #include "sysemu/char.h"
25 #include "ui/qemu-spice.h"
26 #include "ui/vnc.h"
27 #include "sysemu/kvm.h"
28 #include "sysemu/arch_init.h"
29 #include "hw/qdev.h"
30 #include "sysemu/blockdev.h"
31 #include "sysemu/block-backend.h"
32 #include "qom/qom-qobject.h"
33 #include "qapi/qmp/qerror.h"
34 #include "qapi/qmp/qobject.h"
35 #include "qapi/qobject-input-visitor.h"
36 #include "hw/boards.h"
37 #include "qom/object_interfaces.h"
38 #include "hw/mem/pc-dimm.h"
39 #include "hw/acpi/acpi_dev_interface.h"
40
41 NameInfo *qmp_query_name(Error **errp)
42 {
43 NameInfo *info = g_malloc0(sizeof(*info));
44
45 if (qemu_name) {
46 info->has_name = true;
47 info->name = g_strdup(qemu_name);
48 }
49
50 return info;
51 }
52
53 VersionInfo *qmp_query_version(Error **errp)
54 {
55 VersionInfo *info = g_new0(VersionInfo, 1);
56
57 info->qemu = g_new0(VersionTriple, 1);
58 info->qemu->major = QEMU_VERSION_MAJOR;
59 info->qemu->minor = QEMU_VERSION_MINOR;
60 info->qemu->micro = QEMU_VERSION_MICRO;
61 info->package = g_strdup(QEMU_PKGVERSION);
62
63 return info;
64 }
65
66 KvmInfo *qmp_query_kvm(Error **errp)
67 {
68 KvmInfo *info = g_malloc0(sizeof(*info));
69
70 info->enabled = kvm_enabled();
71 info->present = kvm_available();
72
73 return info;
74 }
75
76 UuidInfo *qmp_query_uuid(Error **errp)
77 {
78 UuidInfo *info = g_malloc0(sizeof(*info));
79
80 info->UUID = qemu_uuid_unparse_strdup(&qemu_uuid);
81 return info;
82 }
83
84 void qmp_quit(Error **errp)
85 {
86 no_shutdown = 0;
87 qemu_system_shutdown_request();
88 }
89
90 void qmp_stop(Error **errp)
91 {
92 /* if there is a dump in background, we should wait until the dump
93 * finished */
94 if (dump_in_progress()) {
95 error_setg(errp, "There is a dump in process, please wait.");
96 return;
97 }
98
99 if (runstate_check(RUN_STATE_INMIGRATE)) {
100 autostart = 0;
101 } else {
102 vm_stop(RUN_STATE_PAUSED);
103 }
104 }
105
106 void qmp_system_reset(Error **errp)
107 {
108 qemu_system_reset_request();
109 }
110
111 void qmp_system_powerdown(Error **erp)
112 {
113 qemu_system_powerdown_request();
114 }
115
116 void qmp_cpu(int64_t index, Error **errp)
117 {
118 /* Just do nothing */
119 }
120
121 void qmp_cpu_add(int64_t id, Error **errp)
122 {
123 MachineClass *mc;
124
125 mc = MACHINE_GET_CLASS(current_machine);
126 if (mc->hot_add_cpu) {
127 mc->hot_add_cpu(id, errp);
128 } else {
129 error_setg(errp, "Not supported");
130 }
131 }
132
133 #ifndef CONFIG_VNC
134 /* If VNC support is enabled, the "true" query-vnc command is
135 defined in the VNC subsystem */
136 VncInfo *qmp_query_vnc(Error **errp)
137 {
138 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
139 return NULL;
140 };
141
142 VncInfo2List *qmp_query_vnc_servers(Error **errp)
143 {
144 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
145 return NULL;
146 };
147 #endif
148
149 #ifndef CONFIG_SPICE
150 /*
151 * qmp-commands.hx ensures that QMP command query-spice exists only
152 * #ifdef CONFIG_SPICE. Necessary for an accurate query-commands
153 * result. However, the QAPI schema is blissfully unaware of that,
154 * and the QAPI code generator happily generates a dead
155 * qmp_marshal_query_spice() that calls qmp_query_spice(). Provide it
156 * one, or else linking fails. FIXME Educate the QAPI schema on
157 * CONFIG_SPICE.
158 */
159 SpiceInfo *qmp_query_spice(Error **errp)
160 {
161 abort();
162 };
163 #endif
164
165 void qmp_cont(Error **errp)
166 {
167 Error *local_err = NULL;
168 BlockBackend *blk;
169 BlockDriverState *bs;
170 BdrvNextIterator it;
171
172 /* if there is a dump in background, we should wait until the dump
173 * finished */
174 if (dump_in_progress()) {
175 error_setg(errp, "There is a dump in process, please wait.");
176 return;
177 }
178
179 if (runstate_needs_reset()) {
180 error_setg(errp, "Resetting the Virtual Machine is required");
181 return;
182 } else if (runstate_check(RUN_STATE_SUSPENDED)) {
183 return;
184 }
185
186 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
187 blk_iostatus_reset(blk);
188 }
189
190 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
191 bdrv_add_key(bs, NULL, &local_err);
192 if (local_err) {
193 error_propagate(errp, local_err);
194 return;
195 }
196 }
197
198 /* Continuing after completed migration. Images have been inactivated to
199 * allow the destination to take control. Need to get control back now. */
200 if (runstate_check(RUN_STATE_FINISH_MIGRATE) ||
201 runstate_check(RUN_STATE_POSTMIGRATE))
202 {
203 bdrv_invalidate_cache_all(&local_err);
204 if (local_err) {
205 error_propagate(errp, local_err);
206 return;
207 }
208 }
209
210 if (runstate_check(RUN_STATE_INMIGRATE)) {
211 autostart = 1;
212 } else {
213 vm_start();
214 }
215 }
216
217 void qmp_system_wakeup(Error **errp)
218 {
219 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
220 }
221
222 ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
223 {
224 Object *obj;
225 bool ambiguous = false;
226 ObjectPropertyInfoList *props = NULL;
227 ObjectProperty *prop;
228 ObjectPropertyIterator iter;
229
230 obj = object_resolve_path(path, &ambiguous);
231 if (obj == NULL) {
232 if (ambiguous) {
233 error_setg(errp, "Path '%s' is ambiguous", path);
234 } else {
235 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
236 "Device '%s' not found", path);
237 }
238 return NULL;
239 }
240
241 object_property_iter_init(&iter, obj);
242 while ((prop = object_property_iter_next(&iter))) {
243 ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry));
244
245 entry->value = g_malloc0(sizeof(ObjectPropertyInfo));
246 entry->next = props;
247 props = entry;
248
249 entry->value->name = g_strdup(prop->name);
250 entry->value->type = g_strdup(prop->type);
251 }
252
253 return props;
254 }
255
256 void qmp_qom_set(const char *path, const char *property, QObject *value,
257 Error **errp)
258 {
259 Object *obj;
260
261 obj = object_resolve_path(path, NULL);
262 if (!obj) {
263 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
264 "Device '%s' not found", path);
265 return;
266 }
267
268 object_property_set_qobject(obj, value, property, errp);
269 }
270
271 QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
272 {
273 Object *obj;
274
275 obj = object_resolve_path(path, NULL);
276 if (!obj) {
277 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
278 "Device '%s' not found", path);
279 return NULL;
280 }
281
282 return object_property_get_qobject(obj, property, errp);
283 }
284
285 void qmp_set_password(const char *protocol, const char *password,
286 bool has_connected, const char *connected, Error **errp)
287 {
288 int disconnect_if_connected = 0;
289 int fail_if_connected = 0;
290 int rc;
291
292 if (has_connected) {
293 if (strcmp(connected, "fail") == 0) {
294 fail_if_connected = 1;
295 } else if (strcmp(connected, "disconnect") == 0) {
296 disconnect_if_connected = 1;
297 } else if (strcmp(connected, "keep") == 0) {
298 /* nothing */
299 } else {
300 error_setg(errp, QERR_INVALID_PARAMETER, "connected");
301 return;
302 }
303 }
304
305 if (strcmp(protocol, "spice") == 0) {
306 if (!qemu_using_spice(errp)) {
307 return;
308 }
309 rc = qemu_spice_set_passwd(password, fail_if_connected,
310 disconnect_if_connected);
311 if (rc != 0) {
312 error_setg(errp, QERR_SET_PASSWD_FAILED);
313 }
314 return;
315 }
316
317 if (strcmp(protocol, "vnc") == 0) {
318 if (fail_if_connected || disconnect_if_connected) {
319 /* vnc supports "connected=keep" only */
320 error_setg(errp, QERR_INVALID_PARAMETER, "connected");
321 return;
322 }
323 /* Note that setting an empty password will not disable login through
324 * this interface. */
325 rc = vnc_display_password(NULL, password);
326 if (rc < 0) {
327 error_setg(errp, QERR_SET_PASSWD_FAILED);
328 }
329 return;
330 }
331
332 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
333 }
334
335 void qmp_expire_password(const char *protocol, const char *whenstr,
336 Error **errp)
337 {
338 time_t when;
339 int rc;
340
341 if (strcmp(whenstr, "now") == 0) {
342 when = 0;
343 } else if (strcmp(whenstr, "never") == 0) {
344 when = TIME_MAX;
345 } else if (whenstr[0] == '+') {
346 when = time(NULL) + strtoull(whenstr+1, NULL, 10);
347 } else {
348 when = strtoull(whenstr, NULL, 10);
349 }
350
351 if (strcmp(protocol, "spice") == 0) {
352 if (!qemu_using_spice(errp)) {
353 return;
354 }
355 rc = qemu_spice_set_pw_expire(when);
356 if (rc != 0) {
357 error_setg(errp, QERR_SET_PASSWD_FAILED);
358 }
359 return;
360 }
361
362 if (strcmp(protocol, "vnc") == 0) {
363 rc = vnc_display_pw_expire(NULL, when);
364 if (rc != 0) {
365 error_setg(errp, QERR_SET_PASSWD_FAILED);
366 }
367 return;
368 }
369
370 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
371 }
372
373 #ifdef CONFIG_VNC
374 void qmp_change_vnc_password(const char *password, Error **errp)
375 {
376 if (vnc_display_password(NULL, password) < 0) {
377 error_setg(errp, QERR_SET_PASSWD_FAILED);
378 }
379 }
380
381 static void qmp_change_vnc_listen(const char *target, Error **errp)
382 {
383 QemuOptsList *olist = qemu_find_opts("vnc");
384 QemuOpts *opts;
385
386 if (strstr(target, "id=")) {
387 error_setg(errp, "id not supported");
388 return;
389 }
390
391 opts = qemu_opts_find(olist, "default");
392 if (opts) {
393 qemu_opts_del(opts);
394 }
395 opts = vnc_parse(target, errp);
396 if (!opts) {
397 return;
398 }
399
400 vnc_display_open("default", errp);
401 }
402
403 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
404 Error **errp)
405 {
406 if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) {
407 if (!has_arg) {
408 error_setg(errp, QERR_MISSING_PARAMETER, "password");
409 } else {
410 qmp_change_vnc_password(arg, errp);
411 }
412 } else {
413 qmp_change_vnc_listen(target, errp);
414 }
415 }
416 #else
417 void qmp_change_vnc_password(const char *password, Error **errp)
418 {
419 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
420 }
421 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
422 Error **errp)
423 {
424 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
425 }
426 #endif /* !CONFIG_VNC */
427
428 void qmp_change(const char *device, const char *target,
429 bool has_arg, const char *arg, Error **errp)
430 {
431 if (strcmp(device, "vnc") == 0) {
432 qmp_change_vnc(target, has_arg, arg, errp);
433 } else {
434 qmp_blockdev_change_medium(true, device, false, NULL, target,
435 has_arg, arg, false, 0, errp);
436 }
437 }
438
439 static void qom_list_types_tramp(ObjectClass *klass, void *data)
440 {
441 ObjectTypeInfoList *e, **pret = data;
442 ObjectTypeInfo *info;
443
444 info = g_malloc0(sizeof(*info));
445 info->name = g_strdup(object_class_get_name(klass));
446
447 e = g_malloc0(sizeof(*e));
448 e->value = info;
449 e->next = *pret;
450 *pret = e;
451 }
452
453 ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
454 const char *implements,
455 bool has_abstract,
456 bool abstract,
457 Error **errp)
458 {
459 ObjectTypeInfoList *ret = NULL;
460
461 object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
462
463 return ret;
464 }
465
466 /* Return a DevicePropertyInfo for a qdev property.
467 *
468 * If a qdev property with the given name does not exist, use the given default
469 * type. If the qdev property info should not be shown, return NULL.
470 *
471 * The caller must free the return value.
472 */
473 static DevicePropertyInfo *make_device_property_info(ObjectClass *klass,
474 const char *name,
475 const char *default_type,
476 const char *description)
477 {
478 DevicePropertyInfo *info;
479 Property *prop;
480
481 do {
482 for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
483 if (strcmp(name, prop->name) != 0) {
484 continue;
485 }
486
487 /*
488 * TODO Properties without a parser are just for dirty hacks.
489 * qdev_prop_ptr is the only such PropertyInfo. It's marked
490 * for removal. This conditional should be removed along with
491 * it.
492 */
493 if (!prop->info->set) {
494 return NULL; /* no way to set it, don't show */
495 }
496
497 info = g_malloc0(sizeof(*info));
498 info->name = g_strdup(prop->name);
499 info->type = g_strdup(prop->info->name);
500 info->has_description = !!prop->info->description;
501 info->description = g_strdup(prop->info->description);
502 return info;
503 }
504 klass = object_class_get_parent(klass);
505 } while (klass != object_class_by_name(TYPE_DEVICE));
506
507 /* Not a qdev property, use the default type */
508 info = g_malloc0(sizeof(*info));
509 info->name = g_strdup(name);
510 info->type = g_strdup(default_type);
511 info->has_description = !!description;
512 info->description = g_strdup(description);
513
514 return info;
515 }
516
517 DevicePropertyInfoList *qmp_device_list_properties(const char *typename,
518 Error **errp)
519 {
520 ObjectClass *klass;
521 Object *obj;
522 ObjectProperty *prop;
523 ObjectPropertyIterator iter;
524 DevicePropertyInfoList *prop_list = NULL;
525
526 klass = object_class_by_name(typename);
527 if (klass == NULL) {
528 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
529 "Device '%s' not found", typename);
530 return NULL;
531 }
532
533 klass = object_class_dynamic_cast(klass, TYPE_DEVICE);
534 if (klass == NULL) {
535 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_DEVICE);
536 return NULL;
537 }
538
539 if (object_class_is_abstract(klass)) {
540 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
541 "non-abstract device type");
542 return NULL;
543 }
544
545 if (DEVICE_CLASS(klass)->cannot_destroy_with_object_finalize_yet) {
546 error_setg(errp, "Can't list properties of device '%s'", typename);
547 return NULL;
548 }
549
550 obj = object_new(typename);
551
552 object_property_iter_init(&iter, obj);
553 while ((prop = object_property_iter_next(&iter))) {
554 DevicePropertyInfo *info;
555 DevicePropertyInfoList *entry;
556
557 /* Skip Object and DeviceState properties */
558 if (strcmp(prop->name, "type") == 0 ||
559 strcmp(prop->name, "realized") == 0 ||
560 strcmp(prop->name, "hotpluggable") == 0 ||
561 strcmp(prop->name, "hotplugged") == 0 ||
562 strcmp(prop->name, "parent_bus") == 0) {
563 continue;
564 }
565
566 /* Skip legacy properties since they are just string versions of
567 * properties that we already list.
568 */
569 if (strstart(prop->name, "legacy-", NULL)) {
570 continue;
571 }
572
573 info = make_device_property_info(klass, prop->name, prop->type,
574 prop->description);
575 if (!info) {
576 continue;
577 }
578
579 entry = g_malloc0(sizeof(*entry));
580 entry->value = info;
581 entry->next = prop_list;
582 prop_list = entry;
583 }
584
585 object_unref(obj);
586
587 return prop_list;
588 }
589
590 CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
591 {
592 return arch_query_cpu_definitions(errp);
593 }
594
595 CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
596 CpuModelInfo *model,
597 Error **errp)
598 {
599 return arch_query_cpu_model_expansion(type, model, errp);
600 }
601
602 CpuModelCompareInfo *qmp_query_cpu_model_comparison(CpuModelInfo *modela,
603 CpuModelInfo *modelb,
604 Error **errp)
605 {
606 return arch_query_cpu_model_comparison(modela, modelb, errp);
607 }
608
609 CpuModelBaselineInfo *qmp_query_cpu_model_baseline(CpuModelInfo *modela,
610 CpuModelInfo *modelb,
611 Error **errp)
612 {
613 return arch_query_cpu_model_baseline(modela, modelb, errp);
614 }
615
616 void qmp_add_client(const char *protocol, const char *fdname,
617 bool has_skipauth, bool skipauth, bool has_tls, bool tls,
618 Error **errp)
619 {
620 Chardev *s;
621 int fd;
622
623 fd = monitor_get_fd(cur_mon, fdname, errp);
624 if (fd < 0) {
625 return;
626 }
627
628 if (strcmp(protocol, "spice") == 0) {
629 if (!qemu_using_spice(errp)) {
630 close(fd);
631 return;
632 }
633 skipauth = has_skipauth ? skipauth : false;
634 tls = has_tls ? tls : false;
635 if (qemu_spice_display_add_client(fd, skipauth, tls) < 0) {
636 error_setg(errp, "spice failed to add client");
637 close(fd);
638 }
639 return;
640 #ifdef CONFIG_VNC
641 } else if (strcmp(protocol, "vnc") == 0) {
642 skipauth = has_skipauth ? skipauth : false;
643 vnc_display_add_client(NULL, fd, skipauth);
644 return;
645 #endif
646 } else if ((s = qemu_chr_find(protocol)) != NULL) {
647 if (qemu_chr_add_client(s, fd) < 0) {
648 error_setg(errp, "failed to add client");
649 close(fd);
650 return;
651 }
652 return;
653 }
654
655 error_setg(errp, "protocol '%s' is invalid", protocol);
656 close(fd);
657 }
658
659
660 void qmp_object_add(const char *type, const char *id,
661 bool has_props, QObject *props, Error **errp)
662 {
663 QDict *pdict;
664 Visitor *v;
665 Object *obj;
666
667 if (props) {
668 pdict = qobject_to_qdict(props);
669 if (!pdict) {
670 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
671 return;
672 }
673 QINCREF(pdict);
674 } else {
675 pdict = qdict_new();
676 }
677
678 v = qobject_input_visitor_new(QOBJECT(pdict));
679 obj = user_creatable_add_type(type, id, pdict, v, errp);
680 visit_free(v);
681 if (obj) {
682 object_unref(obj);
683 }
684 QDECREF(pdict);
685 }
686
687 void qmp_object_del(const char *id, Error **errp)
688 {
689 user_creatable_del(id, errp);
690 }
691
692 MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
693 {
694 MemoryDeviceInfoList *head = NULL;
695 MemoryDeviceInfoList **prev = &head;
696
697 qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
698
699 return head;
700 }
701
702 ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp)
703 {
704 bool ambig;
705 ACPIOSTInfoList *head = NULL;
706 ACPIOSTInfoList **prev = &head;
707 Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambig);
708
709 if (obj) {
710 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
711 AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj);
712
713 adevc->ospm_status(adev, &prev);
714 } else {
715 error_setg(errp, "command is not supported, missing ACPI device");
716 }
717
718 return head;
719 }