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cfbe46fc MA |
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" | |
a27bd6c7 | 17 | #include "hw/qdev-core.h" |
cfbe46fc MA |
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 | /* Return a DevicePropertyInfo for a qdev property. | |
125 | * | |
126 | * If a qdev property with the given name does not exist, use the given default | |
127 | * type. If the qdev property info should not be shown, return NULL. | |
128 | * | |
129 | * The caller must free the return value. | |
130 | */ | |
131 | static ObjectPropertyInfo *make_device_property_info(ObjectClass *klass, | |
132 | const char *name, | |
133 | const char *default_type, | |
134 | const char *description) | |
135 | { | |
136 | ObjectPropertyInfo *info; | |
137 | Property *prop; | |
138 | ||
139 | do { | |
140 | for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) { | |
141 | if (strcmp(name, prop->name) != 0) { | |
142 | continue; | |
143 | } | |
144 | ||
cfbe46fc MA |
145 | info = g_malloc0(sizeof(*info)); |
146 | info->name = g_strdup(prop->name); | |
147 | info->type = default_type ? g_strdup(default_type) | |
148 | : g_strdup(prop->info->name); | |
149 | info->has_description = !!prop->info->description; | |
150 | info->description = g_strdup(prop->info->description); | |
151 | return info; | |
152 | } | |
153 | klass = object_class_get_parent(klass); | |
154 | } while (klass != object_class_by_name(TYPE_DEVICE)); | |
155 | ||
156 | /* Not a qdev property, use the default type */ | |
157 | info = g_malloc0(sizeof(*info)); | |
158 | info->name = g_strdup(name); | |
159 | info->type = g_strdup(default_type); | |
160 | info->has_description = !!description; | |
161 | info->description = g_strdup(description); | |
162 | ||
163 | return info; | |
164 | } | |
165 | ||
166 | ObjectPropertyInfoList *qmp_device_list_properties(const char *typename, | |
167 | Error **errp) | |
168 | { | |
169 | ObjectClass *klass; | |
170 | Object *obj; | |
171 | ObjectProperty *prop; | |
172 | ObjectPropertyIterator iter; | |
173 | ObjectPropertyInfoList *prop_list = NULL; | |
174 | ||
175 | klass = object_class_by_name(typename); | |
176 | if (klass == NULL) { | |
177 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, | |
178 | "Device '%s' not found", typename); | |
179 | return NULL; | |
180 | } | |
181 | ||
182 | klass = object_class_dynamic_cast(klass, TYPE_DEVICE); | |
183 | if (klass == NULL) { | |
184 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_DEVICE); | |
185 | return NULL; | |
186 | } | |
187 | ||
188 | if (object_class_is_abstract(klass)) { | |
189 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", | |
190 | "non-abstract device type"); | |
191 | return NULL; | |
192 | } | |
193 | ||
194 | obj = object_new(typename); | |
195 | ||
196 | object_property_iter_init(&iter, obj); | |
197 | while ((prop = object_property_iter_next(&iter))) { | |
198 | ObjectPropertyInfo *info; | |
199 | ObjectPropertyInfoList *entry; | |
200 | ||
201 | /* Skip Object and DeviceState properties */ | |
202 | if (strcmp(prop->name, "type") == 0 || | |
203 | strcmp(prop->name, "realized") == 0 || | |
204 | strcmp(prop->name, "hotpluggable") == 0 || | |
205 | strcmp(prop->name, "hotplugged") == 0 || | |
206 | strcmp(prop->name, "parent_bus") == 0) { | |
207 | continue; | |
208 | } | |
209 | ||
210 | /* Skip legacy properties since they are just string versions of | |
211 | * properties that we already list. | |
212 | */ | |
213 | if (strstart(prop->name, "legacy-", NULL)) { | |
214 | continue; | |
215 | } | |
216 | ||
217 | info = make_device_property_info(klass, prop->name, prop->type, | |
218 | prop->description); | |
219 | if (!info) { | |
220 | continue; | |
221 | } | |
222 | ||
223 | entry = g_malloc0(sizeof(*entry)); | |
224 | entry->value = info; | |
225 | entry->next = prop_list; | |
226 | prop_list = entry; | |
227 | } | |
228 | ||
229 | object_unref(obj); | |
230 | ||
231 | return prop_list; | |
232 | } | |
233 | ||
234 | ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename, | |
235 | Error **errp) | |
236 | { | |
237 | ObjectClass *klass; | |
238 | Object *obj = NULL; | |
239 | ObjectProperty *prop; | |
240 | ObjectPropertyIterator iter; | |
241 | ObjectPropertyInfoList *prop_list = NULL; | |
242 | ||
243 | klass = object_class_by_name(typename); | |
244 | if (klass == NULL) { | |
245 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, | |
246 | "Class '%s' not found", typename); | |
247 | return NULL; | |
248 | } | |
249 | ||
250 | klass = object_class_dynamic_cast(klass, TYPE_OBJECT); | |
251 | if (klass == NULL) { | |
252 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_OBJECT); | |
253 | return NULL; | |
254 | } | |
255 | ||
256 | if (object_class_is_abstract(klass)) { | |
257 | object_class_property_iter_init(&iter, klass); | |
258 | } else { | |
259 | obj = object_new(typename); | |
260 | object_property_iter_init(&iter, obj); | |
261 | } | |
262 | while ((prop = object_property_iter_next(&iter))) { | |
263 | ObjectPropertyInfo *info; | |
264 | ObjectPropertyInfoList *entry; | |
265 | ||
266 | info = g_malloc0(sizeof(*info)); | |
267 | info->name = g_strdup(prop->name); | |
268 | info->type = g_strdup(prop->type); | |
269 | info->has_description = !!prop->description; | |
270 | info->description = g_strdup(prop->description); | |
271 | ||
272 | entry = g_malloc0(sizeof(*entry)); | |
273 | entry->value = info; | |
274 | entry->next = prop_list; | |
275 | prop_list = entry; | |
276 | } | |
277 | ||
278 | object_unref(obj); | |
279 | ||
280 | return prop_list; | |
281 | } | |
282 | ||
283 | void qmp_object_add(const char *type, const char *id, | |
284 | bool has_props, QObject *props, Error **errp) | |
285 | { | |
286 | QDict *pdict; | |
287 | Visitor *v; | |
288 | Object *obj; | |
289 | ||
290 | if (props) { | |
291 | pdict = qobject_to(QDict, props); | |
292 | if (!pdict) { | |
293 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); | |
294 | return; | |
295 | } | |
296 | qobject_ref(pdict); | |
297 | } else { | |
298 | pdict = qdict_new(); | |
299 | } | |
300 | ||
301 | v = qobject_input_visitor_new(QOBJECT(pdict)); | |
302 | obj = user_creatable_add_type(type, id, pdict, v, errp); | |
303 | visit_free(v); | |
304 | if (obj) { | |
305 | object_unref(obj); | |
306 | } | |
307 | qobject_unref(pdict); | |
308 | } | |
309 | ||
310 | void qmp_object_del(const char *id, Error **errp) | |
311 | { | |
312 | user_creatable_del(id, errp); | |
313 | } |