vhost-user-test: create a temporary directory per TestServer
[qemu/ar7.git] / qmp.c
blobb92d62cd5f4613d4baa906cc77dbca9f1efa38b7
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 "qemu/option.h"
20 #include "monitor/monitor.h"
21 #include "sysemu/sysemu.h"
22 #include "qemu/config-file.h"
23 #include "qemu/uuid.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/error.h"
34 #include "qapi/qapi-commands-block-core.h"
35 #include "qapi/qapi-commands-misc.h"
36 #include "qapi/qapi-commands-ui.h"
37 #include "qapi/qmp/qdict.h"
38 #include "qapi/qmp/qerror.h"
39 #include "qapi/qobject-input-visitor.h"
40 #include "hw/boards.h"
41 #include "qom/object_interfaces.h"
42 #include "hw/mem/memory-device.h"
43 #include "hw/acpi/acpi_dev_interface.h"
45 NameInfo *qmp_query_name(Error **errp)
47 NameInfo *info = g_malloc0(sizeof(*info));
49 if (qemu_name) {
50 info->has_name = true;
51 info->name = g_strdup(qemu_name);
54 return info;
57 VersionInfo *qmp_query_version(Error **errp)
59 VersionInfo *info = g_new0(VersionInfo, 1);
61 info->qemu = g_new0(VersionTriple, 1);
62 info->qemu->major = QEMU_VERSION_MAJOR;
63 info->qemu->minor = QEMU_VERSION_MINOR;
64 info->qemu->micro = QEMU_VERSION_MICRO;
65 info->package = g_strdup(QEMU_PKGVERSION);
67 return info;
70 KvmInfo *qmp_query_kvm(Error **errp)
72 KvmInfo *info = g_malloc0(sizeof(*info));
74 info->enabled = kvm_enabled();
75 info->present = kvm_available();
77 return info;
80 UuidInfo *qmp_query_uuid(Error **errp)
82 UuidInfo *info = g_malloc0(sizeof(*info));
84 info->UUID = qemu_uuid_unparse_strdup(&qemu_uuid);
85 return info;
88 void qmp_quit(Error **errp)
90 no_shutdown = 0;
91 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_QMP_QUIT);
94 void qmp_stop(Error **errp)
96 /* if there is a dump in background, we should wait until the dump
97 * finished */
98 if (dump_in_progress()) {
99 error_setg(errp, "There is a dump in process, please wait.");
100 return;
103 if (runstate_check(RUN_STATE_INMIGRATE)) {
104 autostart = 0;
105 } else {
106 vm_stop(RUN_STATE_PAUSED);
110 void qmp_system_reset(Error **errp)
112 qemu_system_reset_request(SHUTDOWN_CAUSE_HOST_QMP_SYSTEM_RESET);
115 void qmp_system_powerdown(Error **erp)
117 qemu_system_powerdown_request();
120 void qmp_cpu_add(int64_t id, Error **errp)
122 MachineClass *mc;
124 mc = MACHINE_GET_CLASS(current_machine);
125 if (mc->hot_add_cpu) {
126 mc->hot_add_cpu(id, errp);
127 } else {
128 error_setg(errp, "Not supported");
132 void qmp_x_exit_preconfig(Error **errp)
134 if (!runstate_check(RUN_STATE_PRECONFIG)) {
135 error_setg(errp, "The command is permitted only in '%s' state",
136 RunState_str(RUN_STATE_PRECONFIG));
137 return;
139 qemu_exit_preconfig_request();
142 void qmp_cont(Error **errp)
144 BlockBackend *blk;
145 Error *local_err = NULL;
147 /* if there is a dump in background, we should wait until the dump
148 * finished */
149 if (dump_in_progress()) {
150 error_setg(errp, "There is a dump in process, please wait.");
151 return;
154 if (runstate_needs_reset()) {
155 error_setg(errp, "Resetting the Virtual Machine is required");
156 return;
157 } else if (runstate_check(RUN_STATE_SUSPENDED)) {
158 return;
161 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
162 blk_iostatus_reset(blk);
165 /* Continuing after completed migration. Images have been inactivated to
166 * allow the destination to take control. Need to get control back now.
168 * If there are no inactive block nodes (e.g. because the VM was just
169 * paused rather than completing a migration), bdrv_inactivate_all() simply
170 * doesn't do anything. */
171 bdrv_invalidate_cache_all(&local_err);
172 if (local_err) {
173 error_propagate(errp, local_err);
174 return;
177 if (runstate_check(RUN_STATE_INMIGRATE)) {
178 autostart = 1;
179 } else {
180 vm_start();
184 void qmp_system_wakeup(Error **errp)
186 if (!qemu_wakeup_suspend_enabled()) {
187 error_setg(errp,
188 "wake-up from suspend is not supported by this guest");
189 return;
192 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, errp);
195 ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
197 Object *obj;
198 bool ambiguous = false;
199 ObjectPropertyInfoList *props = NULL;
200 ObjectProperty *prop;
201 ObjectPropertyIterator iter;
203 obj = object_resolve_path(path, &ambiguous);
204 if (obj == NULL) {
205 if (ambiguous) {
206 error_setg(errp, "Path '%s' is ambiguous", path);
207 } else {
208 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
209 "Device '%s' not found", path);
211 return NULL;
214 object_property_iter_init(&iter, obj);
215 while ((prop = object_property_iter_next(&iter))) {
216 ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry));
218 entry->value = g_malloc0(sizeof(ObjectPropertyInfo));
219 entry->next = props;
220 props = entry;
222 entry->value->name = g_strdup(prop->name);
223 entry->value->type = g_strdup(prop->type);
226 return props;
229 void qmp_qom_set(const char *path, const char *property, QObject *value,
230 Error **errp)
232 Object *obj;
234 obj = object_resolve_path(path, NULL);
235 if (!obj) {
236 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
237 "Device '%s' not found", path);
238 return;
241 object_property_set_qobject(obj, value, property, errp);
244 QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
246 Object *obj;
248 obj = object_resolve_path(path, NULL);
249 if (!obj) {
250 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
251 "Device '%s' not found", path);
252 return NULL;
255 return object_property_get_qobject(obj, property, errp);
258 void qmp_set_password(const char *protocol, const char *password,
259 bool has_connected, const char *connected, Error **errp)
261 int disconnect_if_connected = 0;
262 int fail_if_connected = 0;
263 int rc;
265 if (has_connected) {
266 if (strcmp(connected, "fail") == 0) {
267 fail_if_connected = 1;
268 } else if (strcmp(connected, "disconnect") == 0) {
269 disconnect_if_connected = 1;
270 } else if (strcmp(connected, "keep") == 0) {
271 /* nothing */
272 } else {
273 error_setg(errp, QERR_INVALID_PARAMETER, "connected");
274 return;
278 if (strcmp(protocol, "spice") == 0) {
279 if (!qemu_using_spice(errp)) {
280 return;
282 rc = qemu_spice_set_passwd(password, fail_if_connected,
283 disconnect_if_connected);
284 if (rc != 0) {
285 error_setg(errp, QERR_SET_PASSWD_FAILED);
287 return;
290 if (strcmp(protocol, "vnc") == 0) {
291 if (fail_if_connected || disconnect_if_connected) {
292 /* vnc supports "connected=keep" only */
293 error_setg(errp, QERR_INVALID_PARAMETER, "connected");
294 return;
296 /* Note that setting an empty password will not disable login through
297 * this interface. */
298 rc = vnc_display_password(NULL, password);
299 if (rc < 0) {
300 error_setg(errp, QERR_SET_PASSWD_FAILED);
302 return;
305 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
308 void qmp_expire_password(const char *protocol, const char *whenstr,
309 Error **errp)
311 time_t when;
312 int rc;
314 if (strcmp(whenstr, "now") == 0) {
315 when = 0;
316 } else if (strcmp(whenstr, "never") == 0) {
317 when = TIME_MAX;
318 } else if (whenstr[0] == '+') {
319 when = time(NULL) + strtoull(whenstr+1, NULL, 10);
320 } else {
321 when = strtoull(whenstr, NULL, 10);
324 if (strcmp(protocol, "spice") == 0) {
325 if (!qemu_using_spice(errp)) {
326 return;
328 rc = qemu_spice_set_pw_expire(when);
329 if (rc != 0) {
330 error_setg(errp, QERR_SET_PASSWD_FAILED);
332 return;
335 if (strcmp(protocol, "vnc") == 0) {
336 rc = vnc_display_pw_expire(NULL, when);
337 if (rc != 0) {
338 error_setg(errp, QERR_SET_PASSWD_FAILED);
340 return;
343 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
346 #ifdef CONFIG_VNC
347 void qmp_change_vnc_password(const char *password, Error **errp)
349 if (vnc_display_password(NULL, password) < 0) {
350 error_setg(errp, QERR_SET_PASSWD_FAILED);
354 static void qmp_change_vnc_listen(const char *target, Error **errp)
356 QemuOptsList *olist = qemu_find_opts("vnc");
357 QemuOpts *opts;
359 if (strstr(target, "id=")) {
360 error_setg(errp, "id not supported");
361 return;
364 opts = qemu_opts_find(olist, "default");
365 if (opts) {
366 qemu_opts_del(opts);
368 opts = vnc_parse(target, errp);
369 if (!opts) {
370 return;
373 vnc_display_open("default", errp);
376 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
377 Error **errp)
379 if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) {
380 if (!has_arg) {
381 error_setg(errp, QERR_MISSING_PARAMETER, "password");
382 } else {
383 qmp_change_vnc_password(arg, errp);
385 } else {
386 qmp_change_vnc_listen(target, errp);
389 #endif /* !CONFIG_VNC */
391 void qmp_change(const char *device, const char *target,
392 bool has_arg, const char *arg, Error **errp)
394 if (strcmp(device, "vnc") == 0) {
395 #ifdef CONFIG_VNC
396 qmp_change_vnc(target, has_arg, arg, errp);
397 #else
398 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
399 #endif
400 } else {
401 qmp_blockdev_change_medium(true, device, false, NULL, target,
402 has_arg, arg, false, 0, errp);
406 static void qom_list_types_tramp(ObjectClass *klass, void *data)
408 ObjectTypeInfoList *e, **pret = data;
409 ObjectTypeInfo *info;
410 ObjectClass *parent = object_class_get_parent(klass);
412 info = g_malloc0(sizeof(*info));
413 info->name = g_strdup(object_class_get_name(klass));
414 info->has_abstract = info->abstract = object_class_is_abstract(klass);
415 if (parent) {
416 info->has_parent = true;
417 info->parent = g_strdup(object_class_get_name(parent));
420 e = g_malloc0(sizeof(*e));
421 e->value = info;
422 e->next = *pret;
423 *pret = e;
426 ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
427 const char *implements,
428 bool has_abstract,
429 bool abstract,
430 Error **errp)
432 ObjectTypeInfoList *ret = NULL;
434 object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
436 return ret;
439 /* Return a DevicePropertyInfo for a qdev property.
441 * If a qdev property with the given name does not exist, use the given default
442 * type. If the qdev property info should not be shown, return NULL.
444 * The caller must free the return value.
446 static ObjectPropertyInfo *make_device_property_info(ObjectClass *klass,
447 const char *name,
448 const char *default_type,
449 const char *description)
451 ObjectPropertyInfo *info;
452 Property *prop;
454 do {
455 for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
456 if (strcmp(name, prop->name) != 0) {
457 continue;
461 * TODO Properties without a parser are just for dirty hacks.
462 * qdev_prop_ptr is the only such PropertyInfo. It's marked
463 * for removal. This conditional should be removed along with
464 * it.
466 if (!prop->info->set && !prop->info->create) {
467 return NULL; /* no way to set it, don't show */
470 info = g_malloc0(sizeof(*info));
471 info->name = g_strdup(prop->name);
472 info->type = default_type ? g_strdup(default_type)
473 : g_strdup(prop->info->name);
474 info->has_description = !!prop->info->description;
475 info->description = g_strdup(prop->info->description);
476 return info;
478 klass = object_class_get_parent(klass);
479 } while (klass != object_class_by_name(TYPE_DEVICE));
481 /* Not a qdev property, use the default type */
482 info = g_malloc0(sizeof(*info));
483 info->name = g_strdup(name);
484 info->type = g_strdup(default_type);
485 info->has_description = !!description;
486 info->description = g_strdup(description);
488 return info;
491 ObjectPropertyInfoList *qmp_device_list_properties(const char *typename,
492 Error **errp)
494 ObjectClass *klass;
495 Object *obj;
496 ObjectProperty *prop;
497 ObjectPropertyIterator iter;
498 ObjectPropertyInfoList *prop_list = NULL;
500 klass = object_class_by_name(typename);
501 if (klass == NULL) {
502 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
503 "Device '%s' not found", typename);
504 return NULL;
507 klass = object_class_dynamic_cast(klass, TYPE_DEVICE);
508 if (klass == NULL) {
509 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_DEVICE);
510 return NULL;
513 if (object_class_is_abstract(klass)) {
514 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
515 "non-abstract device type");
516 return NULL;
519 obj = object_new(typename);
521 object_property_iter_init(&iter, obj);
522 while ((prop = object_property_iter_next(&iter))) {
523 ObjectPropertyInfo *info;
524 ObjectPropertyInfoList *entry;
526 /* Skip Object and DeviceState properties */
527 if (strcmp(prop->name, "type") == 0 ||
528 strcmp(prop->name, "realized") == 0 ||
529 strcmp(prop->name, "hotpluggable") == 0 ||
530 strcmp(prop->name, "hotplugged") == 0 ||
531 strcmp(prop->name, "parent_bus") == 0) {
532 continue;
535 /* Skip legacy properties since they are just string versions of
536 * properties that we already list.
538 if (strstart(prop->name, "legacy-", NULL)) {
539 continue;
542 info = make_device_property_info(klass, prop->name, prop->type,
543 prop->description);
544 if (!info) {
545 continue;
548 entry = g_malloc0(sizeof(*entry));
549 entry->value = info;
550 entry->next = prop_list;
551 prop_list = entry;
554 object_unref(obj);
556 return prop_list;
559 ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename,
560 Error **errp)
562 ObjectClass *klass;
563 Object *obj = NULL;
564 ObjectProperty *prop;
565 ObjectPropertyIterator iter;
566 ObjectPropertyInfoList *prop_list = NULL;
568 klass = object_class_by_name(typename);
569 if (klass == NULL) {
570 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
571 "Class '%s' not found", typename);
572 return NULL;
575 klass = object_class_dynamic_cast(klass, TYPE_OBJECT);
576 if (klass == NULL) {
577 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_OBJECT);
578 return NULL;
581 if (object_class_is_abstract(klass)) {
582 object_class_property_iter_init(&iter, klass);
583 } else {
584 obj = object_new(typename);
585 object_property_iter_init(&iter, obj);
587 while ((prop = object_property_iter_next(&iter))) {
588 ObjectPropertyInfo *info;
589 ObjectPropertyInfoList *entry;
591 info = g_malloc0(sizeof(*info));
592 info->name = g_strdup(prop->name);
593 info->type = g_strdup(prop->type);
594 info->has_description = !!prop->description;
595 info->description = g_strdup(prop->description);
597 entry = g_malloc0(sizeof(*entry));
598 entry->value = info;
599 entry->next = prop_list;
600 prop_list = entry;
603 object_unref(obj);
605 return prop_list;
608 void qmp_add_client(const char *protocol, const char *fdname,
609 bool has_skipauth, bool skipauth, bool has_tls, bool tls,
610 Error **errp)
612 Chardev *s;
613 int fd;
615 fd = monitor_get_fd(cur_mon, fdname, errp);
616 if (fd < 0) {
617 return;
620 if (strcmp(protocol, "spice") == 0) {
621 if (!qemu_using_spice(errp)) {
622 close(fd);
623 return;
625 skipauth = has_skipauth ? skipauth : false;
626 tls = has_tls ? tls : false;
627 if (qemu_spice_display_add_client(fd, skipauth, tls) < 0) {
628 error_setg(errp, "spice failed to add client");
629 close(fd);
631 return;
632 #ifdef CONFIG_VNC
633 } else if (strcmp(protocol, "vnc") == 0) {
634 skipauth = has_skipauth ? skipauth : false;
635 vnc_display_add_client(NULL, fd, skipauth);
636 return;
637 #endif
638 } else if ((s = qemu_chr_find(protocol)) != NULL) {
639 if (qemu_chr_add_client(s, fd) < 0) {
640 error_setg(errp, "failed to add client");
641 close(fd);
642 return;
644 return;
647 error_setg(errp, "protocol '%s' is invalid", protocol);
648 close(fd);
652 void qmp_object_add(const char *type, const char *id,
653 bool has_props, QObject *props, Error **errp)
655 QDict *pdict;
656 Visitor *v;
657 Object *obj;
659 if (props) {
660 pdict = qobject_to(QDict, props);
661 if (!pdict) {
662 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
663 return;
665 qobject_ref(pdict);
666 } else {
667 pdict = qdict_new();
670 v = qobject_input_visitor_new(QOBJECT(pdict));
671 obj = user_creatable_add_type(type, id, pdict, v, errp);
672 visit_free(v);
673 if (obj) {
674 object_unref(obj);
676 qobject_unref(pdict);
679 void qmp_object_del(const char *id, Error **errp)
681 user_creatable_del(id, errp);
684 MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
686 return qmp_memory_device_list();
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;