block/ssh: Make ssh_grow_file() blocking
[qemu/ar7.git] / qmp.c
blob793f6f332302ee8aad0d45cc9ece5f9c4a2016cd
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 "qmp-commands.h"
25 #include "chardev/char.h"
26 #include "ui/qemu-spice.h"
27 #include "ui/vnc.h"
28 #include "sysemu/kvm.h"
29 #include "sysemu/arch_init.h"
30 #include "hw/qdev.h"
31 #include "sysemu/blockdev.h"
32 #include "sysemu/block-backend.h"
33 #include "qom/qom-qobject.h"
34 #include "qapi/error.h"
35 #include "qapi/qmp/qdict.h"
36 #include "qapi/qmp/qerror.h"
37 #include "qapi/qobject-input-visitor.h"
38 #include "hw/boards.h"
39 #include "qom/object_interfaces.h"
40 #include "hw/mem/pc-dimm.h"
41 #include "hw/acpi/acpi_dev_interface.h"
43 NameInfo *qmp_query_name(Error **errp)
45 NameInfo *info = g_malloc0(sizeof(*info));
47 if (qemu_name) {
48 info->has_name = true;
49 info->name = g_strdup(qemu_name);
52 return info;
55 VersionInfo *qmp_query_version(Error **errp)
57 VersionInfo *info = g_new0(VersionInfo, 1);
59 info->qemu = g_new0(VersionTriple, 1);
60 info->qemu->major = QEMU_VERSION_MAJOR;
61 info->qemu->minor = QEMU_VERSION_MINOR;
62 info->qemu->micro = QEMU_VERSION_MICRO;
63 info->package = g_strdup(QEMU_PKGVERSION);
65 return info;
68 KvmInfo *qmp_query_kvm(Error **errp)
70 KvmInfo *info = g_malloc0(sizeof(*info));
72 info->enabled = kvm_enabled();
73 info->present = kvm_available();
75 return info;
78 UuidInfo *qmp_query_uuid(Error **errp)
80 UuidInfo *info = g_malloc0(sizeof(*info));
82 info->UUID = qemu_uuid_unparse_strdup(&qemu_uuid);
83 return info;
86 void qmp_quit(Error **errp)
88 no_shutdown = 0;
89 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_QMP);
92 void qmp_stop(Error **errp)
94 /* if there is a dump in background, we should wait until the dump
95 * finished */
96 if (dump_in_progress()) {
97 error_setg(errp, "There is a dump in process, please wait.");
98 return;
101 if (runstate_check(RUN_STATE_INMIGRATE)) {
102 autostart = 0;
103 } else {
104 vm_stop(RUN_STATE_PAUSED);
108 void qmp_system_reset(Error **errp)
110 qemu_system_reset_request(SHUTDOWN_CAUSE_HOST_QMP);
113 void qmp_system_powerdown(Error **erp)
115 qemu_system_powerdown_request();
118 void qmp_cpu_add(int64_t id, Error **errp)
120 MachineClass *mc;
122 mc = MACHINE_GET_CLASS(current_machine);
123 if (mc->hot_add_cpu) {
124 mc->hot_add_cpu(id, errp);
125 } else {
126 error_setg(errp, "Not supported");
130 #ifndef CONFIG_VNC
131 /* If VNC support is enabled, the "true" query-vnc command is
132 defined in the VNC subsystem */
133 VncInfo *qmp_query_vnc(Error **errp)
135 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
136 return NULL;
139 VncInfo2List *qmp_query_vnc_servers(Error **errp)
141 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
142 return NULL;
144 #endif
146 #ifndef CONFIG_SPICE
148 * qmp-commands.hx ensures that QMP command query-spice exists only
149 * #ifdef CONFIG_SPICE. Necessary for an accurate query-commands
150 * result. However, the QAPI schema is blissfully unaware of that,
151 * and the QAPI code generator happily generates a dead
152 * qmp_marshal_query_spice() that calls qmp_query_spice(). Provide it
153 * one, or else linking fails. FIXME Educate the QAPI schema on
154 * CONFIG_SPICE.
156 SpiceInfo *qmp_query_spice(Error **errp)
158 abort();
160 #endif
162 void qmp_cont(Error **errp)
164 BlockBackend *blk;
165 Error *local_err = NULL;
167 /* if there is a dump in background, we should wait until the dump
168 * finished */
169 if (dump_in_progress()) {
170 error_setg(errp, "There is a dump in process, please wait.");
171 return;
174 if (runstate_needs_reset()) {
175 error_setg(errp, "Resetting the Virtual Machine is required");
176 return;
177 } else if (runstate_check(RUN_STATE_SUSPENDED)) {
178 return;
181 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
182 blk_iostatus_reset(blk);
185 /* Continuing after completed migration. Images have been inactivated to
186 * allow the destination to take control. Need to get control back now.
188 * If there are no inactive block nodes (e.g. because the VM was just
189 * paused rather than completing a migration), bdrv_inactivate_all() simply
190 * doesn't do anything. */
191 bdrv_invalidate_cache_all(&local_err);
192 if (local_err) {
193 error_propagate(errp, local_err);
194 return;
197 if (runstate_check(RUN_STATE_INMIGRATE)) {
198 autostart = 1;
199 } else {
200 vm_start();
204 void qmp_system_wakeup(Error **errp)
206 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
209 ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
211 Object *obj;
212 bool ambiguous = false;
213 ObjectPropertyInfoList *props = NULL;
214 ObjectProperty *prop;
215 ObjectPropertyIterator iter;
217 obj = object_resolve_path(path, &ambiguous);
218 if (obj == NULL) {
219 if (ambiguous) {
220 error_setg(errp, "Path '%s' is ambiguous", path);
221 } else {
222 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
223 "Device '%s' not found", path);
225 return NULL;
228 object_property_iter_init(&iter, obj);
229 while ((prop = object_property_iter_next(&iter))) {
230 ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry));
232 entry->value = g_malloc0(sizeof(ObjectPropertyInfo));
233 entry->next = props;
234 props = entry;
236 entry->value->name = g_strdup(prop->name);
237 entry->value->type = g_strdup(prop->type);
240 return props;
243 void qmp_qom_set(const char *path, const char *property, QObject *value,
244 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;
255 object_property_set_qobject(obj, value, property, errp);
258 QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
260 Object *obj;
262 obj = object_resolve_path(path, NULL);
263 if (!obj) {
264 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
265 "Device '%s' not found", path);
266 return NULL;
269 return object_property_get_qobject(obj, property, errp);
272 void qmp_set_password(const char *protocol, const char *password,
273 bool has_connected, const char *connected, Error **errp)
275 int disconnect_if_connected = 0;
276 int fail_if_connected = 0;
277 int rc;
279 if (has_connected) {
280 if (strcmp(connected, "fail") == 0) {
281 fail_if_connected = 1;
282 } else if (strcmp(connected, "disconnect") == 0) {
283 disconnect_if_connected = 1;
284 } else if (strcmp(connected, "keep") == 0) {
285 /* nothing */
286 } else {
287 error_setg(errp, QERR_INVALID_PARAMETER, "connected");
288 return;
292 if (strcmp(protocol, "spice") == 0) {
293 if (!qemu_using_spice(errp)) {
294 return;
296 rc = qemu_spice_set_passwd(password, fail_if_connected,
297 disconnect_if_connected);
298 if (rc != 0) {
299 error_setg(errp, QERR_SET_PASSWD_FAILED);
301 return;
304 if (strcmp(protocol, "vnc") == 0) {
305 if (fail_if_connected || disconnect_if_connected) {
306 /* vnc supports "connected=keep" only */
307 error_setg(errp, QERR_INVALID_PARAMETER, "connected");
308 return;
310 /* Note that setting an empty password will not disable login through
311 * this interface. */
312 rc = vnc_display_password(NULL, password);
313 if (rc < 0) {
314 error_setg(errp, QERR_SET_PASSWD_FAILED);
316 return;
319 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
322 void qmp_expire_password(const char *protocol, const char *whenstr,
323 Error **errp)
325 time_t when;
326 int rc;
328 if (strcmp(whenstr, "now") == 0) {
329 when = 0;
330 } else if (strcmp(whenstr, "never") == 0) {
331 when = TIME_MAX;
332 } else if (whenstr[0] == '+') {
333 when = time(NULL) + strtoull(whenstr+1, NULL, 10);
334 } else {
335 when = strtoull(whenstr, NULL, 10);
338 if (strcmp(protocol, "spice") == 0) {
339 if (!qemu_using_spice(errp)) {
340 return;
342 rc = qemu_spice_set_pw_expire(when);
343 if (rc != 0) {
344 error_setg(errp, QERR_SET_PASSWD_FAILED);
346 return;
349 if (strcmp(protocol, "vnc") == 0) {
350 rc = vnc_display_pw_expire(NULL, when);
351 if (rc != 0) {
352 error_setg(errp, QERR_SET_PASSWD_FAILED);
354 return;
357 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
360 #ifdef CONFIG_VNC
361 void qmp_change_vnc_password(const char *password, Error **errp)
363 if (vnc_display_password(NULL, password) < 0) {
364 error_setg(errp, QERR_SET_PASSWD_FAILED);
368 static void qmp_change_vnc_listen(const char *target, Error **errp)
370 QemuOptsList *olist = qemu_find_opts("vnc");
371 QemuOpts *opts;
373 if (strstr(target, "id=")) {
374 error_setg(errp, "id not supported");
375 return;
378 opts = qemu_opts_find(olist, "default");
379 if (opts) {
380 qemu_opts_del(opts);
382 opts = vnc_parse(target, errp);
383 if (!opts) {
384 return;
387 vnc_display_open("default", errp);
390 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
391 Error **errp)
393 if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) {
394 if (!has_arg) {
395 error_setg(errp, QERR_MISSING_PARAMETER, "password");
396 } else {
397 qmp_change_vnc_password(arg, errp);
399 } else {
400 qmp_change_vnc_listen(target, errp);
403 #else
404 void qmp_change_vnc_password(const char *password, Error **errp)
406 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
408 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
409 Error **errp)
411 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
413 #endif /* !CONFIG_VNC */
415 void qmp_change(const char *device, const char *target,
416 bool has_arg, const char *arg, Error **errp)
418 if (strcmp(device, "vnc") == 0) {
419 qmp_change_vnc(target, has_arg, arg, errp);
420 } else {
421 qmp_blockdev_change_medium(true, device, false, NULL, target,
422 has_arg, arg, false, 0, errp);
426 static void qom_list_types_tramp(ObjectClass *klass, void *data)
428 ObjectTypeInfoList *e, **pret = data;
429 ObjectTypeInfo *info;
430 ObjectClass *parent = object_class_get_parent(klass);
432 info = g_malloc0(sizeof(*info));
433 info->name = g_strdup(object_class_get_name(klass));
434 info->has_abstract = info->abstract = object_class_is_abstract(klass);
435 if (parent) {
436 info->has_parent = true;
437 info->parent = g_strdup(object_class_get_name(parent));
440 e = g_malloc0(sizeof(*e));
441 e->value = info;
442 e->next = *pret;
443 *pret = e;
446 ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
447 const char *implements,
448 bool has_abstract,
449 bool abstract,
450 Error **errp)
452 ObjectTypeInfoList *ret = NULL;
454 object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
456 return ret;
459 /* Return a DevicePropertyInfo for a qdev property.
461 * If a qdev property with the given name does not exist, use the given default
462 * type. If the qdev property info should not be shown, return NULL.
464 * The caller must free the return value.
466 static DevicePropertyInfo *make_device_property_info(ObjectClass *klass,
467 const char *name,
468 const char *default_type,
469 const char *description)
471 DevicePropertyInfo *info;
472 Property *prop;
474 do {
475 for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
476 if (strcmp(name, prop->name) != 0) {
477 continue;
481 * TODO Properties without a parser are just for dirty hacks.
482 * qdev_prop_ptr is the only such PropertyInfo. It's marked
483 * for removal. This conditional should be removed along with
484 * it.
486 if (!prop->info->set && !prop->info->create) {
487 return NULL; /* no way to set it, don't show */
490 info = g_malloc0(sizeof(*info));
491 info->name = g_strdup(prop->name);
492 info->type = default_type ? g_strdup(default_type)
493 : g_strdup(prop->info->name);
494 info->has_description = !!prop->info->description;
495 info->description = g_strdup(prop->info->description);
496 return info;
498 klass = object_class_get_parent(klass);
499 } while (klass != object_class_by_name(TYPE_DEVICE));
501 /* Not a qdev property, use the default type */
502 info = g_malloc0(sizeof(*info));
503 info->name = g_strdup(name);
504 info->type = g_strdup(default_type);
505 info->has_description = !!description;
506 info->description = g_strdup(description);
508 return info;
511 DevicePropertyInfoList *qmp_device_list_properties(const char *typename,
512 Error **errp)
514 ObjectClass *klass;
515 Object *obj;
516 ObjectProperty *prop;
517 ObjectPropertyIterator iter;
518 DevicePropertyInfoList *prop_list = NULL;
520 klass = object_class_by_name(typename);
521 if (klass == NULL) {
522 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
523 "Device '%s' not found", typename);
524 return NULL;
527 klass = object_class_dynamic_cast(klass, TYPE_DEVICE);
528 if (klass == NULL) {
529 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_DEVICE);
530 return NULL;
533 if (object_class_is_abstract(klass)) {
534 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
535 "non-abstract device type");
536 return NULL;
539 obj = object_new(typename);
541 object_property_iter_init(&iter, obj);
542 while ((prop = object_property_iter_next(&iter))) {
543 DevicePropertyInfo *info;
544 DevicePropertyInfoList *entry;
546 /* Skip Object and DeviceState properties */
547 if (strcmp(prop->name, "type") == 0 ||
548 strcmp(prop->name, "realized") == 0 ||
549 strcmp(prop->name, "hotpluggable") == 0 ||
550 strcmp(prop->name, "hotplugged") == 0 ||
551 strcmp(prop->name, "parent_bus") == 0) {
552 continue;
555 /* Skip legacy properties since they are just string versions of
556 * properties that we already list.
558 if (strstart(prop->name, "legacy-", NULL)) {
559 continue;
562 info = make_device_property_info(klass, prop->name, prop->type,
563 prop->description);
564 if (!info) {
565 continue;
568 entry = g_malloc0(sizeof(*entry));
569 entry->value = info;
570 entry->next = prop_list;
571 prop_list = entry;
574 object_unref(obj);
576 return prop_list;
579 CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
581 return arch_query_cpu_definitions(errp);
584 CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
585 CpuModelInfo *model,
586 Error **errp)
588 return arch_query_cpu_model_expansion(type, model, errp);
591 CpuModelCompareInfo *qmp_query_cpu_model_comparison(CpuModelInfo *modela,
592 CpuModelInfo *modelb,
593 Error **errp)
595 return arch_query_cpu_model_comparison(modela, modelb, errp);
598 CpuModelBaselineInfo *qmp_query_cpu_model_baseline(CpuModelInfo *modela,
599 CpuModelInfo *modelb,
600 Error **errp)
602 return arch_query_cpu_model_baseline(modela, modelb, errp);
605 void qmp_add_client(const char *protocol, const char *fdname,
606 bool has_skipauth, bool skipauth, bool has_tls, bool tls,
607 Error **errp)
609 Chardev *s;
610 int fd;
612 fd = monitor_get_fd(cur_mon, fdname, errp);
613 if (fd < 0) {
614 return;
617 if (strcmp(protocol, "spice") == 0) {
618 if (!qemu_using_spice(errp)) {
619 close(fd);
620 return;
622 skipauth = has_skipauth ? skipauth : false;
623 tls = has_tls ? tls : false;
624 if (qemu_spice_display_add_client(fd, skipauth, tls) < 0) {
625 error_setg(errp, "spice failed to add client");
626 close(fd);
628 return;
629 #ifdef CONFIG_VNC
630 } else if (strcmp(protocol, "vnc") == 0) {
631 skipauth = has_skipauth ? skipauth : false;
632 vnc_display_add_client(NULL, fd, skipauth);
633 return;
634 #endif
635 } else if ((s = qemu_chr_find(protocol)) != NULL) {
636 if (qemu_chr_add_client(s, fd) < 0) {
637 error_setg(errp, "failed to add client");
638 close(fd);
639 return;
641 return;
644 error_setg(errp, "protocol '%s' is invalid", protocol);
645 close(fd);
649 void qmp_object_add(const char *type, const char *id,
650 bool has_props, QObject *props, Error **errp)
652 QDict *pdict;
653 Visitor *v;
654 Object *obj;
656 if (props) {
657 pdict = qobject_to_qdict(props);
658 if (!pdict) {
659 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
660 return;
662 QINCREF(pdict);
663 } else {
664 pdict = qdict_new();
667 v = qobject_input_visitor_new(QOBJECT(pdict));
668 obj = user_creatable_add_type(type, id, pdict, v, errp);
669 visit_free(v);
670 if (obj) {
671 object_unref(obj);
673 QDECREF(pdict);
676 void qmp_object_del(const char *id, Error **errp)
678 user_creatable_del(id, errp);
681 MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
683 MemoryDeviceInfoList *head = NULL;
684 MemoryDeviceInfoList **prev = &head;
686 qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
688 return head;
691 ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp)
693 bool ambig;
694 ACPIOSTInfoList *head = NULL;
695 ACPIOSTInfoList **prev = &head;
696 Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambig);
698 if (obj) {
699 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
700 AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj);
702 adevc->ospm_status(adev, &prev);
703 } else {
704 error_setg(errp, "command is not supported, missing ACPI device");
707 return head;
710 MemoryInfo *qmp_query_memory_size_summary(Error **errp)
712 MemoryInfo *mem_info = g_malloc0(sizeof(MemoryInfo));
714 mem_info->base_memory = ram_size;
716 mem_info->plugged_memory = get_plugged_memory_size();
717 mem_info->has_plugged_memory =
718 mem_info->plugged_memory != (uint64_t)-1;
720 return mem_info;