1 /* 2 * QMP commands related to QOM 3 * 4 * Copyright IBM, Corp. 2011 5 * 6 * Authors: 7 * Anthony Liguori <aliguori@us.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2. See 10 * the COPYING file in the top-level directory. 11 * 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. 14 */ 15 16 #include "qemu/osdep.h" 17 #include "hw/qdev-core.h" 18 #include "qapi/error.h" 19 #include "qapi/qapi-commands-qdev.h" 20 #include "qapi/qapi-commands-qom.h" 21 #include "qapi/qmp/qdict.h" 22 #include "qapi/qmp/qerror.h" 23 #include "qapi/qobject-input-visitor.h" 24 #include "qemu/cutils.h" 25 #include "qom/object_interfaces.h" 26 #include "qom/qom-qobject.h" 27 28 ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp) 29 { 30 Object *obj; 31 bool ambiguous = false; 32 ObjectPropertyInfoList *props = NULL; 33 ObjectProperty *prop; 34 ObjectPropertyIterator iter; 35 36 obj = object_resolve_path(path, &ambiguous); 37 if (obj == NULL) { 38 if (ambiguous) { 39 error_setg(errp, "Path '%s' is ambiguous", path); 40 } else { 41 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, 42 "Device '%s' not found", path); 43 } 44 return NULL; 45 } 46 47 object_property_iter_init(&iter, obj); 48 while ((prop = object_property_iter_next(&iter))) { 49 ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry)); 50 51 entry->value = g_malloc0(sizeof(ObjectPropertyInfo)); 52 entry->next = props; 53 props = entry; 54 55 entry->value->name = g_strdup(prop->name); 56 entry->value->type = g_strdup(prop->type); 57 } 58 59 return props; 60 } 61 62 void qmp_qom_set(const char *path, const char *property, QObject *value, 63 Error **errp) 64 { 65 Object *obj; 66 67 obj = object_resolve_path(path, NULL); 68 if (!obj) { 69 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, 70 "Device '%s' not found", path); 71 return; 72 } 73 74 object_property_set_qobject(obj, value, property, errp); 75 } 76 77 QObject *qmp_qom_get(const char *path, const char *property, Error **errp) 78 { 79 Object *obj; 80 81 obj = object_resolve_path(path, NULL); 82 if (!obj) { 83 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, 84 "Device '%s' not found", path); 85 return NULL; 86 } 87 88 return object_property_get_qobject(obj, property, errp); 89 } 90 91 static void qom_list_types_tramp(ObjectClass *klass, void *data) 92 { 93 ObjectTypeInfoList *e, **pret = data; 94 ObjectTypeInfo *info; 95 ObjectClass *parent = object_class_get_parent(klass); 96 97 info = g_malloc0(sizeof(*info)); 98 info->name = g_strdup(object_class_get_name(klass)); 99 info->has_abstract = info->abstract = object_class_is_abstract(klass); 100 if (parent) { 101 info->has_parent = true; 102 info->parent = g_strdup(object_class_get_name(parent)); 103 } 104 105 e = g_malloc0(sizeof(*e)); 106 e->value = info; 107 e->next = *pret; 108 *pret = e; 109 } 110 111 ObjectTypeInfoList *qmp_qom_list_types(bool has_implements, 112 const char *implements, 113 bool has_abstract, 114 bool abstract, 115 Error **errp) 116 { 117 ObjectTypeInfoList *ret = NULL; 118 119 object_class_foreach(qom_list_types_tramp, implements, abstract, &ret); 120 121 return ret; 122 } 123 124 ObjectPropertyInfoList *qmp_device_list_properties(const char *typename, 125 Error **errp) 126 { 127 ObjectClass *klass; 128 Object *obj; 129 ObjectProperty *prop; 130 ObjectPropertyIterator iter; 131 ObjectPropertyInfoList *prop_list = NULL; 132 133 klass = object_class_by_name(typename); 134 if (klass == NULL) { 135 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, 136 "Device '%s' not found", typename); 137 return NULL; 138 } 139 140 klass = object_class_dynamic_cast(klass, TYPE_DEVICE); 141 if (klass == NULL) { 142 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_DEVICE); 143 return NULL; 144 } 145 146 if (object_class_is_abstract(klass)) { 147 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", 148 "non-abstract device type"); 149 return NULL; 150 } 151 152 obj = object_new(typename); 153 154 object_property_iter_init(&iter, obj); 155 while ((prop = object_property_iter_next(&iter))) { 156 ObjectPropertyInfo *info; 157 ObjectPropertyInfoList *entry; 158 159 /* Skip Object and DeviceState properties */ 160 if (strcmp(prop->name, "type") == 0 || 161 strcmp(prop->name, "realized") == 0 || 162 strcmp(prop->name, "hotpluggable") == 0 || 163 strcmp(prop->name, "hotplugged") == 0 || 164 strcmp(prop->name, "parent_bus") == 0) { 165 continue; 166 } 167 168 /* Skip legacy properties since they are just string versions of 169 * properties that we already list. 170 */ 171 if (strstart(prop->name, "legacy-", NULL)) { 172 continue; 173 } 174 175 info = g_new0(ObjectPropertyInfo, 1); 176 info->name = g_strdup(prop->name); 177 info->type = g_strdup(prop->type); 178 info->has_description = !!prop->description; 179 info->description = g_strdup(prop->description); 180 info->default_value = qobject_ref(prop->defval); 181 info->has_default_value = !!info->default_value; 182 183 entry = g_malloc0(sizeof(*entry)); 184 entry->value = info; 185 entry->next = prop_list; 186 prop_list = entry; 187 } 188 189 object_unref(obj); 190 191 return prop_list; 192 } 193 194 ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename, 195 Error **errp) 196 { 197 ObjectClass *klass; 198 Object *obj = NULL; 199 ObjectProperty *prop; 200 ObjectPropertyIterator iter; 201 ObjectPropertyInfoList *prop_list = NULL; 202 203 klass = object_class_by_name(typename); 204 if (klass == NULL) { 205 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, 206 "Class '%s' not found", typename); 207 return NULL; 208 } 209 210 klass = object_class_dynamic_cast(klass, TYPE_OBJECT); 211 if (klass == NULL) { 212 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_OBJECT); 213 return NULL; 214 } 215 216 if (object_class_is_abstract(klass)) { 217 object_class_property_iter_init(&iter, klass); 218 } else { 219 obj = object_new(typename); 220 object_property_iter_init(&iter, obj); 221 } 222 while ((prop = object_property_iter_next(&iter))) { 223 ObjectPropertyInfo *info; 224 ObjectPropertyInfoList *entry; 225 226 info = g_malloc0(sizeof(*info)); 227 info->name = g_strdup(prop->name); 228 info->type = g_strdup(prop->type); 229 info->has_description = !!prop->description; 230 info->description = g_strdup(prop->description); 231 232 entry = g_malloc0(sizeof(*entry)); 233 entry->value = info; 234 entry->next = prop_list; 235 prop_list = entry; 236 } 237 238 object_unref(obj); 239 240 return prop_list; 241 } 242 243 void qmp_object_add(const char *type, const char *id, 244 bool has_props, QObject *props, Error **errp) 245 { 246 QDict *pdict; 247 Visitor *v; 248 Object *obj; 249 250 if (props) { 251 pdict = qobject_to(QDict, props); 252 if (!pdict) { 253 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); 254 return; 255 } 256 qobject_ref(pdict); 257 } else { 258 pdict = qdict_new(); 259 } 260 261 v = qobject_input_visitor_new(QOBJECT(pdict)); 262 obj = user_creatable_add_type(type, id, pdict, v, errp); 263 visit_free(v); 264 if (obj) { 265 object_unref(obj); 266 } 267 qobject_unref(pdict); 268 } 269 270 void qmp_object_del(const char *id, Error **errp) 271 { 272 user_creatable_del(id, errp); 273 } 274