Merge remote-tracking branch 'qemu/master'
[qemu/ar7.git] / qmp.c
blob52cfd2d81c0f8d58a41d4a8bdbb4983949c76633
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 "chardev/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(SHUTDOWN_CAUSE_HOST_QMP);
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(SHUTDOWN_CAUSE_HOST_QMP);
111 void qmp_system_powerdown(Error **erp)
113 qemu_system_powerdown_request();
116 void qmp_cpu_add(int64_t id, Error **errp)
118 MachineClass *mc;
120 mc = MACHINE_GET_CLASS(current_machine);
121 if (mc->hot_add_cpu) {
122 mc->hot_add_cpu(id, errp);
123 } else {
124 error_setg(errp, "Not supported");
128 #ifndef CONFIG_VNC
129 /* If VNC support is enabled, the "true" query-vnc command is
130 defined in the VNC subsystem */
131 VncInfo *qmp_query_vnc(Error **errp)
133 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
134 return NULL;
137 VncInfo2List *qmp_query_vnc_servers(Error **errp)
139 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
140 return NULL;
142 #endif
144 #ifndef CONFIG_SPICE
146 * qmp-commands.hx ensures that QMP command query-spice exists only
147 * #ifdef CONFIG_SPICE. Necessary for an accurate query-commands
148 * result. However, the QAPI schema is blissfully unaware of that,
149 * and the QAPI code generator happily generates a dead
150 * qmp_marshal_query_spice() that calls qmp_query_spice(). Provide it
151 * one, or else linking fails. FIXME Educate the QAPI schema on
152 * CONFIG_SPICE.
154 SpiceInfo *qmp_query_spice(Error **errp)
156 abort();
158 #endif
160 void qmp_cont(Error **errp)
162 BlockBackend *blk;
163 Error *local_err = NULL;
165 /* if there is a dump in background, we should wait until the dump
166 * finished */
167 if (dump_in_progress()) {
168 error_setg(errp, "There is a dump in process, please wait.");
169 return;
172 if (runstate_needs_reset()) {
173 error_setg(errp, "Resetting the Virtual Machine is required");
174 return;
175 } else if (runstate_check(RUN_STATE_SUSPENDED)) {
176 return;
179 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
180 blk_iostatus_reset(blk);
183 /* Continuing after completed migration. Images have been inactivated to
184 * allow the destination to take control. Need to get control back now.
186 * If there are no inactive block nodes (e.g. because the VM was just
187 * paused rather than completing a migration), bdrv_inactivate_all() simply
188 * doesn't do anything. */
189 bdrv_invalidate_cache_all(&local_err);
190 if (local_err) {
191 error_propagate(errp, local_err);
192 return;
195 if (runstate_check(RUN_STATE_INMIGRATE)) {
196 autostart = 1;
197 } else {
198 vm_start();
202 void qmp_system_wakeup(Error **errp)
204 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
207 ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
209 Object *obj;
210 bool ambiguous = false;
211 ObjectPropertyInfoList *props = NULL;
212 ObjectProperty *prop;
213 ObjectPropertyIterator iter;
215 obj = object_resolve_path(path, &ambiguous);
216 if (obj == NULL) {
217 if (ambiguous) {
218 error_setg(errp, "Path '%s' is ambiguous", path);
219 } else {
220 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
221 "Device '%s' not found", path);
223 return NULL;
226 object_property_iter_init(&iter, obj);
227 while ((prop = object_property_iter_next(&iter))) {
228 ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry));
230 entry->value = g_malloc0(sizeof(ObjectPropertyInfo));
231 entry->next = props;
232 props = entry;
234 entry->value->name = g_strdup(prop->name);
235 entry->value->type = g_strdup(prop->type);
238 return props;
241 void qmp_qom_set(const char *path, const char *property, QObject *value,
242 Error **errp)
244 Object *obj;
246 obj = object_resolve_path(path, NULL);
247 if (!obj) {
248 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
249 "Device '%s' not found", path);
250 return;
253 object_property_set_qobject(obj, value, property, errp);
256 QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
258 Object *obj;
260 obj = object_resolve_path(path, NULL);
261 if (!obj) {
262 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
263 "Device '%s' not found", path);
264 return NULL;
267 return object_property_get_qobject(obj, property, errp);
270 void qmp_set_password(const char *protocol, const char *password,
271 bool has_connected, const char *connected, Error **errp)
273 int disconnect_if_connected = 0;
274 int fail_if_connected = 0;
275 int rc;
277 if (has_connected) {
278 if (strcmp(connected, "fail") == 0) {
279 fail_if_connected = 1;
280 } else if (strcmp(connected, "disconnect") == 0) {
281 disconnect_if_connected = 1;
282 } else if (strcmp(connected, "keep") == 0) {
283 /* nothing */
284 } else {
285 error_setg(errp, QERR_INVALID_PARAMETER, "connected");
286 return;
290 if (strcmp(protocol, "spice") == 0) {
291 if (!qemu_using_spice(errp)) {
292 return;
294 rc = qemu_spice_set_passwd(password, fail_if_connected,
295 disconnect_if_connected);
296 if (rc != 0) {
297 error_setg(errp, QERR_SET_PASSWD_FAILED);
299 return;
302 if (strcmp(protocol, "vnc") == 0) {
303 if (fail_if_connected || disconnect_if_connected) {
304 /* vnc supports "connected=keep" only */
305 error_setg(errp, QERR_INVALID_PARAMETER, "connected");
306 return;
308 /* Note that setting an empty password will not disable login through
309 * this interface. */
310 rc = vnc_display_password(NULL, password);
311 if (rc < 0) {
312 error_setg(errp, QERR_SET_PASSWD_FAILED);
314 return;
317 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
320 void qmp_expire_password(const char *protocol, const char *whenstr,
321 Error **errp)
323 time_t when;
324 int rc;
326 if (strcmp(whenstr, "now") == 0) {
327 when = 0;
328 } else if (strcmp(whenstr, "never") == 0) {
329 when = TIME_MAX;
330 } else if (whenstr[0] == '+') {
331 when = time(NULL) + strtoull(whenstr+1, NULL, 10);
332 } else {
333 when = strtoull(whenstr, NULL, 10);
336 if (strcmp(protocol, "spice") == 0) {
337 if (!qemu_using_spice(errp)) {
338 return;
340 rc = qemu_spice_set_pw_expire(when);
341 if (rc != 0) {
342 error_setg(errp, QERR_SET_PASSWD_FAILED);
344 return;
347 if (strcmp(protocol, "vnc") == 0) {
348 rc = vnc_display_pw_expire(NULL, when);
349 if (rc != 0) {
350 error_setg(errp, QERR_SET_PASSWD_FAILED);
352 return;
355 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
358 #ifdef CONFIG_VNC
359 void qmp_change_vnc_password(const char *password, Error **errp)
361 if (vnc_display_password(NULL, password) < 0) {
362 error_setg(errp, QERR_SET_PASSWD_FAILED);
366 static void qmp_change_vnc_listen(const char *target, Error **errp)
368 QemuOptsList *olist = qemu_find_opts("vnc");
369 QemuOpts *opts;
371 if (strstr(target, "id=")) {
372 error_setg(errp, "id not supported");
373 return;
376 opts = qemu_opts_find(olist, "default");
377 if (opts) {
378 qemu_opts_del(opts);
380 opts = vnc_parse(target, errp);
381 if (!opts) {
382 return;
385 vnc_display_open("default", errp);
388 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
389 Error **errp)
391 if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) {
392 if (!has_arg) {
393 error_setg(errp, QERR_MISSING_PARAMETER, "password");
394 } else {
395 qmp_change_vnc_password(arg, errp);
397 } else {
398 qmp_change_vnc_listen(target, errp);
401 #else
402 void qmp_change_vnc_password(const char *password, Error **errp)
404 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
406 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
407 Error **errp)
409 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
411 #endif /* !CONFIG_VNC */
413 void qmp_change(const char *device, const char *target,
414 bool has_arg, const char *arg, Error **errp)
416 if (strcmp(device, "vnc") == 0) {
417 qmp_change_vnc(target, has_arg, arg, errp);
418 } else {
419 qmp_blockdev_change_medium(true, device, false, NULL, target,
420 has_arg, arg, false, 0, errp);
424 static void qom_list_types_tramp(ObjectClass *klass, void *data)
426 ObjectTypeInfoList *e, **pret = data;
427 ObjectTypeInfo *info;
428 ObjectClass *parent = object_class_get_parent(klass);
430 info = g_malloc0(sizeof(*info));
431 info->name = g_strdup(object_class_get_name(klass));
432 info->has_abstract = info->abstract = object_class_is_abstract(klass);
433 if (parent) {
434 info->has_parent = true;
435 info->parent = g_strdup(object_class_get_name(parent));
438 e = g_malloc0(sizeof(*e));
439 e->value = info;
440 e->next = *pret;
441 *pret = e;
444 ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
445 const char *implements,
446 bool has_abstract,
447 bool abstract,
448 Error **errp)
450 ObjectTypeInfoList *ret = NULL;
452 object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
454 return ret;
457 /* Return a DevicePropertyInfo for a qdev property.
459 * If a qdev property with the given name does not exist, use the given default
460 * type. If the qdev property info should not be shown, return NULL.
462 * The caller must free the return value.
464 static DevicePropertyInfo *make_device_property_info(ObjectClass *klass,
465 const char *name,
466 const char *default_type,
467 const char *description)
469 DevicePropertyInfo *info;
470 Property *prop;
472 do {
473 for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
474 if (strcmp(name, prop->name) != 0) {
475 continue;
479 * TODO Properties without a parser are just for dirty hacks.
480 * qdev_prop_ptr is the only such PropertyInfo. It's marked
481 * for removal. This conditional should be removed along with
482 * it.
484 if (!prop->info->set && !prop->info->create) {
485 return NULL; /* no way to set it, don't show */
488 info = g_malloc0(sizeof(*info));
489 info->name = g_strdup(prop->name);
490 info->type = default_type ? g_strdup(default_type)
491 : g_strdup(prop->info->name);
492 info->has_description = !!prop->info->description;
493 info->description = g_strdup(prop->info->description);
494 return info;
496 klass = object_class_get_parent(klass);
497 } while (klass != object_class_by_name(TYPE_DEVICE));
499 /* Not a qdev property, use the default type */
500 info = g_malloc0(sizeof(*info));
501 info->name = g_strdup(name);
502 info->type = g_strdup(default_type);
503 info->has_description = !!description;
504 info->description = g_strdup(description);
506 return info;
509 DevicePropertyInfoList *qmp_device_list_properties(const char *typename,
510 Error **errp)
512 ObjectClass *klass;
513 Object *obj;
514 ObjectProperty *prop;
515 ObjectPropertyIterator iter;
516 DevicePropertyInfoList *prop_list = NULL;
518 klass = object_class_by_name(typename);
519 if (klass == NULL) {
520 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
521 "Device '%s' not found", typename);
522 return NULL;
525 klass = object_class_dynamic_cast(klass, TYPE_DEVICE);
526 if (klass == NULL) {
527 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_DEVICE);
528 return NULL;
531 if (object_class_is_abstract(klass)) {
532 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
533 "non-abstract device type");
534 return NULL;
537 obj = object_new(typename);
539 object_property_iter_init(&iter, obj);
540 while ((prop = object_property_iter_next(&iter))) {
541 DevicePropertyInfo *info;
542 DevicePropertyInfoList *entry;
544 /* Skip Object and DeviceState properties */
545 if (strcmp(prop->name, "type") == 0 ||
546 strcmp(prop->name, "realized") == 0 ||
547 strcmp(prop->name, "hotpluggable") == 0 ||
548 strcmp(prop->name, "hotplugged") == 0 ||
549 strcmp(prop->name, "parent_bus") == 0) {
550 continue;
553 /* Skip legacy properties since they are just string versions of
554 * properties that we already list.
556 if (strstart(prop->name, "legacy-", NULL)) {
557 continue;
560 info = make_device_property_info(klass, prop->name, prop->type,
561 prop->description);
562 if (!info) {
563 continue;
566 entry = g_malloc0(sizeof(*entry));
567 entry->value = info;
568 entry->next = prop_list;
569 prop_list = entry;
572 object_unref(obj);
574 return prop_list;
577 CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
579 return arch_query_cpu_definitions(errp);
582 CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
583 CpuModelInfo *model,
584 Error **errp)
586 return arch_query_cpu_model_expansion(type, model, errp);
589 CpuModelCompareInfo *qmp_query_cpu_model_comparison(CpuModelInfo *modela,
590 CpuModelInfo *modelb,
591 Error **errp)
593 return arch_query_cpu_model_comparison(modela, modelb, errp);
596 CpuModelBaselineInfo *qmp_query_cpu_model_baseline(CpuModelInfo *modela,
597 CpuModelInfo *modelb,
598 Error **errp)
600 return arch_query_cpu_model_baseline(modela, modelb, errp);
603 void qmp_add_client(const char *protocol, const char *fdname,
604 bool has_skipauth, bool skipauth, bool has_tls, bool tls,
605 Error **errp)
607 Chardev *s;
608 int fd;
610 fd = monitor_get_fd(cur_mon, fdname, errp);
611 if (fd < 0) {
612 return;
615 if (strcmp(protocol, "spice") == 0) {
616 if (!qemu_using_spice(errp)) {
617 close(fd);
618 return;
620 skipauth = has_skipauth ? skipauth : false;
621 tls = has_tls ? tls : false;
622 if (qemu_spice_display_add_client(fd, skipauth, tls) < 0) {
623 error_setg(errp, "spice failed to add client");
624 close(fd);
626 return;
627 #ifdef CONFIG_VNC
628 } else if (strcmp(protocol, "vnc") == 0) {
629 skipauth = has_skipauth ? skipauth : false;
630 vnc_display_add_client(NULL, fd, skipauth);
631 return;
632 #endif
633 } else if ((s = qemu_chr_find(protocol)) != NULL) {
634 if (qemu_chr_add_client(s, fd) < 0) {
635 error_setg(errp, "failed to add client");
636 close(fd);
637 return;
639 return;
642 error_setg(errp, "protocol '%s' is invalid", protocol);
643 close(fd);
647 void qmp_object_add(const char *type, const char *id,
648 bool has_props, QObject *props, Error **errp)
650 QDict *pdict;
651 Visitor *v;
652 Object *obj;
654 if (props) {
655 pdict = qobject_to_qdict(props);
656 if (!pdict) {
657 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
658 return;
660 QINCREF(pdict);
661 } else {
662 pdict = qdict_new();
665 v = qobject_input_visitor_new(QOBJECT(pdict));
666 obj = user_creatable_add_type(type, id, pdict, v, errp);
667 visit_free(v);
668 if (obj) {
669 object_unref(obj);
671 QDECREF(pdict);
674 void qmp_object_del(const char *id, Error **errp)
676 user_creatable_del(id, errp);
679 MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
681 MemoryDeviceInfoList *head = NULL;
682 MemoryDeviceInfoList **prev = &head;
684 qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
686 return head;
689 ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp)
691 bool ambig;
692 ACPIOSTInfoList *head = NULL;
693 ACPIOSTInfoList **prev = &head;
694 Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambig);
696 if (obj) {
697 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
698 AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj);
700 adevc->ospm_status(adev, &prev);
701 } else {
702 error_setg(errp, "command is not supported, missing ACPI device");
705 return head;
708 MemoryInfo *qmp_query_memory_size_summary(Error **errp)
710 MemoryInfo *mem_info = g_malloc0(sizeof(MemoryInfo));
712 mem_info->base_memory = ram_size;
714 mem_info->plugged_memory = get_plugged_memory_size();
715 mem_info->has_plugged_memory =
716 mem_info->plugged_memory != (uint64_t)-1;
718 return mem_info;