Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
[qemu/ar7.git] / qmp.c
blobfa82b598c6d0c58c4919cc2a2d5451f7c70a67e2
1 /*
2 * QEMU Management Protocol
4 * Copyright IBM, Corp. 2011
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
9 * This work is licensed under the terms of the GNU GPL, version 2. See
10 * the COPYING file in the top-level directory.
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.
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"
41 NameInfo *qmp_query_name(Error **errp)
43 NameInfo *info = g_malloc0(sizeof(*info));
45 if (qemu_name) {
46 info->has_name = true;
47 info->name = g_strdup(qemu_name);
50 return info;
53 VersionInfo *qmp_query_version(Error **errp)
55 VersionInfo *info = g_new0(VersionInfo, 1);
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);
63 return info;
66 KvmInfo *qmp_query_kvm(Error **errp)
68 KvmInfo *info = g_malloc0(sizeof(*info));
70 info->enabled = kvm_enabled();
71 info->present = kvm_available();
73 return info;
76 UuidInfo *qmp_query_uuid(Error **errp)
78 UuidInfo *info = g_malloc0(sizeof(*info));
80 info->UUID = qemu_uuid_unparse_strdup(&qemu_uuid);
81 return info;
84 void qmp_quit(Error **errp)
86 no_shutdown = 0;
87 qemu_system_shutdown_request();
90 void qmp_stop(Error **errp)
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;
99 if (runstate_check(RUN_STATE_INMIGRATE)) {
100 autostart = 0;
101 } else {
102 vm_stop(RUN_STATE_PAUSED);
106 void qmp_system_reset(Error **errp)
108 qemu_system_reset_request();
111 void qmp_system_powerdown(Error **erp)
113 qemu_system_powerdown_request();
116 void qmp_cpu(int64_t index, Error **errp)
118 /* Just do nothing */
121 void qmp_cpu_add(int64_t id, Error **errp)
123 MachineClass *mc;
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");
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)
138 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
139 return NULL;
142 VncInfo2List *qmp_query_vnc_servers(Error **errp)
144 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
145 return NULL;
147 #endif
149 #ifndef CONFIG_SPICE
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.
159 SpiceInfo *qmp_query_spice(Error **errp)
161 abort();
163 #endif
165 void qmp_cont(Error **errp)
167 Error *local_err = NULL;
168 BlockBackend *blk;
169 BlockDriverState *bs;
170 BdrvNextIterator it;
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;
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;
186 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
187 blk_iostatus_reset(blk);
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;
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))
203 bdrv_invalidate_cache_all(&local_err);
204 if (local_err) {
205 error_propagate(errp, local_err);
206 return;
210 if (runstate_check(RUN_STATE_INMIGRATE)) {
211 autostart = 1;
212 } else {
213 vm_start();
217 void qmp_system_wakeup(Error **errp)
219 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
222 ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
224 Object *obj;
225 bool ambiguous = false;
226 ObjectPropertyInfoList *props = NULL;
227 ObjectProperty *prop;
228 ObjectPropertyIterator iter;
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);
238 return NULL;
241 object_property_iter_init(&iter, obj);
242 while ((prop = object_property_iter_next(&iter))) {
243 ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry));
245 entry->value = g_malloc0(sizeof(ObjectPropertyInfo));
246 entry->next = props;
247 props = entry;
249 entry->value->name = g_strdup(prop->name);
250 entry->value->type = g_strdup(prop->type);
253 return props;
256 void qmp_qom_set(const char *path, const char *property, QObject *value,
257 Error **errp)
259 Object *obj;
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;
268 object_property_set_qobject(obj, value, property, errp);
271 QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
273 Object *obj;
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;
282 return object_property_get_qobject(obj, property, errp);
285 void qmp_set_password(const char *protocol, const char *password,
286 bool has_connected, const char *connected, Error **errp)
288 int disconnect_if_connected = 0;
289 int fail_if_connected = 0;
290 int rc;
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;
305 if (strcmp(protocol, "spice") == 0) {
306 if (!qemu_using_spice(errp)) {
307 return;
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);
314 return;
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;
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);
329 return;
332 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
335 void qmp_expire_password(const char *protocol, const char *whenstr,
336 Error **errp)
338 time_t when;
339 int rc;
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);
351 if (strcmp(protocol, "spice") == 0) {
352 if (!qemu_using_spice(errp)) {
353 return;
355 rc = qemu_spice_set_pw_expire(when);
356 if (rc != 0) {
357 error_setg(errp, QERR_SET_PASSWD_FAILED);
359 return;
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);
367 return;
370 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
373 #ifdef CONFIG_VNC
374 void qmp_change_vnc_password(const char *password, Error **errp)
376 if (vnc_display_password(NULL, password) < 0) {
377 error_setg(errp, QERR_SET_PASSWD_FAILED);
381 static void qmp_change_vnc_listen(const char *target, Error **errp)
383 QemuOptsList *olist = qemu_find_opts("vnc");
384 QemuOpts *opts;
386 if (strstr(target, "id=")) {
387 error_setg(errp, "id not supported");
388 return;
391 opts = qemu_opts_find(olist, "default");
392 if (opts) {
393 qemu_opts_del(opts);
395 opts = vnc_parse(target, errp);
396 if (!opts) {
397 return;
400 vnc_display_open("default", errp);
403 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
404 Error **errp)
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);
412 } else {
413 qmp_change_vnc_listen(target, errp);
416 #else
417 void qmp_change_vnc_password(const char *password, Error **errp)
419 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
421 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
422 Error **errp)
424 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
426 #endif /* !CONFIG_VNC */
428 void qmp_change(const char *device, const char *target,
429 bool has_arg, const char *arg, Error **errp)
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);
439 static void qom_list_types_tramp(ObjectClass *klass, void *data)
441 ObjectTypeInfoList *e, **pret = data;
442 ObjectTypeInfo *info;
444 info = g_malloc0(sizeof(*info));
445 info->name = g_strdup(object_class_get_name(klass));
447 e = g_malloc0(sizeof(*e));
448 e->value = info;
449 e->next = *pret;
450 *pret = e;
453 ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
454 const char *implements,
455 bool has_abstract,
456 bool abstract,
457 Error **errp)
459 ObjectTypeInfoList *ret = NULL;
461 object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
463 return ret;
466 /* Return a DevicePropertyInfo for a qdev property.
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.
471 * The caller must free the return value.
473 static DevicePropertyInfo *make_device_property_info(ObjectClass *klass,
474 const char *name,
475 const char *default_type,
476 const char *description)
478 DevicePropertyInfo *info;
479 Property *prop;
481 do {
482 for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
483 if (strcmp(name, prop->name) != 0) {
484 continue;
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.
493 if (!prop->info->set) {
494 return NULL; /* no way to set it, don't show */
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;
504 klass = object_class_get_parent(klass);
505 } while (klass != object_class_by_name(TYPE_DEVICE));
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);
514 return info;
517 DevicePropertyInfoList *qmp_device_list_properties(const char *typename,
518 Error **errp)
520 ObjectClass *klass;
521 Object *obj;
522 ObjectProperty *prop;
523 ObjectPropertyIterator iter;
524 DevicePropertyInfoList *prop_list = NULL;
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;
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;
539 if (object_class_is_abstract(klass)) {
540 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
541 "non-abstract device type");
542 return NULL;
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;
550 obj = object_new(typename);
552 object_property_iter_init(&iter, obj);
553 while ((prop = object_property_iter_next(&iter))) {
554 DevicePropertyInfo *info;
555 DevicePropertyInfoList *entry;
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;
566 /* Skip legacy properties since they are just string versions of
567 * properties that we already list.
569 if (strstart(prop->name, "legacy-", NULL)) {
570 continue;
573 info = make_device_property_info(klass, prop->name, prop->type,
574 prop->description);
575 if (!info) {
576 continue;
579 entry = g_malloc0(sizeof(*entry));
580 entry->value = info;
581 entry->next = prop_list;
582 prop_list = entry;
585 object_unref(obj);
587 return prop_list;
590 CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
592 return arch_query_cpu_definitions(errp);
595 CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
596 CpuModelInfo *model,
597 Error **errp)
599 return arch_query_cpu_model_expansion(type, model, errp);
602 CpuModelCompareInfo *qmp_query_cpu_model_comparison(CpuModelInfo *modela,
603 CpuModelInfo *modelb,
604 Error **errp)
606 return arch_query_cpu_model_comparison(modela, modelb, errp);
609 CpuModelBaselineInfo *qmp_query_cpu_model_baseline(CpuModelInfo *modela,
610 CpuModelInfo *modelb,
611 Error **errp)
613 return arch_query_cpu_model_baseline(modela, modelb, errp);
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)
620 Chardev *s;
621 int fd;
623 fd = monitor_get_fd(cur_mon, fdname, errp);
624 if (fd < 0) {
625 return;
628 if (strcmp(protocol, "spice") == 0) {
629 if (!qemu_using_spice(errp)) {
630 close(fd);
631 return;
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);
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;
652 return;
655 error_setg(errp, "protocol '%s' is invalid", protocol);
656 close(fd);
660 void qmp_object_add(const char *type, const char *id,
661 bool has_props, QObject *props, Error **errp)
663 QDict *pdict;
664 Visitor *v;
665 Object *obj;
667 if (props) {
668 pdict = qobject_to_qdict(props);
669 if (!pdict) {
670 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
671 return;
673 QINCREF(pdict);
674 } else {
675 pdict = qdict_new();
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);
684 QDECREF(pdict);
687 void qmp_object_del(const char *id, Error **errp)
689 user_creatable_del(id, errp);
692 MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
694 MemoryDeviceInfoList *head = NULL;
695 MemoryDeviceInfoList **prev = &head;
697 qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
699 return head;
702 ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp)
704 bool ambig;
705 ACPIOSTInfoList *head = NULL;
706 ACPIOSTInfoList **prev = &head;
707 Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambig);
709 if (obj) {
710 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
711 AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj);
713 adevc->ospm_status(adev, &prev);
714 } else {
715 error_setg(errp, "command is not supported, missing ACPI device");
718 return head;