qemu

qom-qmp-cmds.c (6810B)

---

 /*
  * QMP commands related to QOM
  *
  * Copyright IBM, Corp. 2011
  *
  * Authors:
  *  Anthony Liguori   <aliguori@us.ibm.com>
  *
  * This work is licensed under the terms of the GNU GPL, version 2.  See
  * the COPYING file in the top-level directory.
  *
  * Contributions after 2012-01-13 are licensed under the terms of the
  * GNU GPL, version 2 or (at your option) any later version.
  */
 
 #include "qemu/osdep.h"
 #include "block/qdict.h"
 #include "hw/qdev-core.h"
 #include "qapi/error.h"
 #include "qapi/qapi-commands-qdev.h"
 #include "qapi/qapi-commands-qom.h"
 #include "qapi/qapi-visit-qom.h"
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qerror.h"
 #include "qapi/qobject-input-visitor.h"
 #include "qapi/qobject-output-visitor.h"
 #include "qemu/cutils.h"
 #include "qom/object_interfaces.h"
 #include "qom/qom-qobject.h"
 
 ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
 {
     Object *obj;
     bool ambiguous = false;
     ObjectPropertyInfoList *props = NULL;
     ObjectProperty *prop;
     ObjectPropertyIterator iter;
 
     obj = object_resolve_path(path, &ambiguous);
     if (obj == NULL) {
         if (ambiguous) {
             error_setg(errp, "Path '%s' is ambiguous", path);
         } else {
             error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
                       "Device '%s' not found", path);
         }
         return NULL;
     }
 
     object_property_iter_init(&iter, obj);
     while ((prop = object_property_iter_next(&iter))) {
         ObjectPropertyInfo *value = g_new0(ObjectPropertyInfo, 1);
 
         QAPI_LIST_PREPEND(props, value);
 
         value->name = g_strdup(prop->name);
         value->type = g_strdup(prop->type);
     }
 
     return props;
 }
 
 void qmp_qom_set(const char *path, const char *property, QObject *value,
                  Error **errp)
 {
     Object *obj;
 
     obj = object_resolve_path(path, NULL);
     if (!obj) {
         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
                   "Device '%s' not found", path);
         return;
     }
 
     object_property_set_qobject(obj, property, value, errp);
 }
 
 QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
 {
     Object *obj;
 
     obj = object_resolve_path(path, NULL);
     if (!obj) {
         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
                   "Device '%s' not found", path);
         return NULL;
     }
 
     return object_property_get_qobject(obj, property, errp);
 }
 
 static void qom_list_types_tramp(ObjectClass *klass, void *data)
 {
     ObjectTypeInfoList **pret = data;
     ObjectTypeInfo *info;
     ObjectClass *parent = object_class_get_parent(klass);
 
     info = g_malloc0(sizeof(*info));
     info->name = g_strdup(object_class_get_name(klass));
     info->has_abstract = info->abstract = object_class_is_abstract(klass);
     if (parent) {
         info->has_parent = true;
         info->parent = g_strdup(object_class_get_name(parent));
     }
 
     QAPI_LIST_PREPEND(*pret, info);
 }
 
 ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
                                        const char *implements,
                                        bool has_abstract,
                                        bool abstract,
                                        Error **errp)
 {
     ObjectTypeInfoList *ret = NULL;
 
     module_load_qom_all();
     object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
 
     return ret;
 }
 
 ObjectPropertyInfoList *qmp_device_list_properties(const char *typename,
                                                 Error **errp)
 {
     ObjectClass *klass;
     Object *obj;
     ObjectProperty *prop;
     ObjectPropertyIterator iter;
     ObjectPropertyInfoList *prop_list = NULL;
 
     klass = module_object_class_by_name(typename);
     if (klass == NULL) {
         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
                   "Device '%s' not found", typename);
         return NULL;
     }
 
     if (!object_class_dynamic_cast(klass, TYPE_DEVICE)
         || object_class_is_abstract(klass)) {
         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
                    "a non-abstract device type");
         return NULL;
     }
 
     obj = object_new(typename);
 
     object_property_iter_init(&iter, obj);
     while ((prop = object_property_iter_next(&iter))) {
         ObjectPropertyInfo *info;
 
         /* Skip Object and DeviceState properties */
         if (strcmp(prop->name, "type") == 0 ||
             strcmp(prop->name, "realized") == 0 ||
             strcmp(prop->name, "hotpluggable") == 0 ||
             strcmp(prop->name, "hotplugged") == 0 ||
             strcmp(prop->name, "parent_bus") == 0) {
             continue;
         }
 
         /* Skip legacy properties since they are just string versions of
          * properties that we already list.
          */
         if (strstart(prop->name, "legacy-", NULL)) {
             continue;
         }
 
         info = g_new0(ObjectPropertyInfo, 1);
         info->name = g_strdup(prop->name);
         info->type = g_strdup(prop->type);
         info->has_description = !!prop->description;
         info->description = g_strdup(prop->description);
         info->default_value = qobject_ref(prop->defval);
         info->has_default_value = !!info->default_value;
 
         QAPI_LIST_PREPEND(prop_list, info);
     }
 
     object_unref(obj);
 
     return prop_list;
 }
 
 ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename,
                                              Error **errp)
 {
     ObjectClass *klass;
     Object *obj = NULL;
     ObjectProperty *prop;
     ObjectPropertyIterator iter;
     ObjectPropertyInfoList *prop_list = NULL;
 
     klass = object_class_by_name(typename);
     if (klass == NULL) {
         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
                   "Class '%s' not found", typename);
         return NULL;
     }
 
     if (!object_class_dynamic_cast(klass, TYPE_OBJECT)) {
         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
                    "a QOM type");
         return NULL;
     }
 
     if (object_class_is_abstract(klass)) {
         object_class_property_iter_init(&iter, klass);
     } else {
         obj = object_new(typename);
         object_property_iter_init(&iter, obj);
     }
     while ((prop = object_property_iter_next(&iter))) {
         ObjectPropertyInfo *info;
 
         info = g_malloc0(sizeof(*info));
         info->name = g_strdup(prop->name);
         info->type = g_strdup(prop->type);
         info->has_description = !!prop->description;
         info->description = g_strdup(prop->description);
 
         QAPI_LIST_PREPEND(prop_list, info);
     }
 
     object_unref(obj);
 
     return prop_list;
 }
 
 void qmp_object_add(ObjectOptions *options, Error **errp)
 {
     user_creatable_add_qapi(options, errp);
 }
 
 void qmp_object_del(const char *id, Error **errp)
 {
     user_creatable_del(id, errp);
 }