xref: /openbmc/qemu/qom/qom-qmp-cmds.c (revision 05caa062)
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 "block/qdict.h"
18 #include "hw/qdev-core.h"
19 #include "qapi/error.h"
20 #include "qapi/qapi-commands-qdev.h"
21 #include "qapi/qapi-commands-qom.h"
22 #include "qapi/qapi-visit-qom.h"
23 #include "qapi/qmp/qdict.h"
24 #include "qapi/qmp/qerror.h"
25 #include "qapi/qobject-input-visitor.h"
26 #include "qapi/qobject-output-visitor.h"
27 #include "qemu/cutils.h"
28 #include "qom/object_interfaces.h"
29 #include "qom/qom-qobject.h"
30 
31 ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
32 {
33     Object *obj;
34     bool ambiguous = false;
35     ObjectPropertyInfoList *props = NULL;
36     ObjectProperty *prop;
37     ObjectPropertyIterator iter;
38 
39     obj = object_resolve_path(path, &ambiguous);
40     if (obj == NULL) {
41         if (ambiguous) {
42             error_setg(errp, "Path '%s' is ambiguous", path);
43         } else {
44             error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
45                       "Device '%s' not found", path);
46         }
47         return NULL;
48     }
49 
50     object_property_iter_init(&iter, obj);
51     while ((prop = object_property_iter_next(&iter))) {
52         ObjectPropertyInfo *value = g_new0(ObjectPropertyInfo, 1);
53 
54         QAPI_LIST_PREPEND(props, value);
55 
56         value->name = g_strdup(prop->name);
57         value->type = g_strdup(prop->type);
58     }
59 
60     return props;
61 }
62 
63 void qmp_qom_set(const char *path, const char *property, QObject *value,
64                  Error **errp)
65 {
66     Object *obj;
67 
68     obj = object_resolve_path(path, NULL);
69     if (!obj) {
70         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
71                   "Device '%s' not found", path);
72         return;
73     }
74 
75     object_property_set_qobject(obj, property, value, errp);
76 }
77 
78 QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
79 {
80     Object *obj;
81 
82     obj = object_resolve_path(path, NULL);
83     if (!obj) {
84         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
85                   "Device '%s' not found", path);
86         return NULL;
87     }
88 
89     return object_property_get_qobject(obj, property, errp);
90 }
91 
92 static void qom_list_types_tramp(ObjectClass *klass, void *data)
93 {
94     ObjectTypeInfoList **pret = data;
95     ObjectTypeInfo *info;
96     ObjectClass *parent = object_class_get_parent(klass);
97 
98     info = g_malloc0(sizeof(*info));
99     info->name = g_strdup(object_class_get_name(klass));
100     info->has_abstract = info->abstract = object_class_is_abstract(klass);
101     if (parent) {
102         info->parent = g_strdup(object_class_get_name(parent));
103     }
104 
105     QAPI_LIST_PREPEND(*pret, info);
106 }
107 
108 ObjectTypeInfoList *qmp_qom_list_types(const char *implements,
109                                        bool has_abstract,
110                                        bool abstract,
111                                        Error **errp)
112 {
113     ObjectTypeInfoList *ret = NULL;
114 
115     module_load_qom_all();
116     object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
117 
118     return ret;
119 }
120 
121 ObjectPropertyInfoList *qmp_device_list_properties(const char *typename,
122                                                 Error **errp)
123 {
124     ObjectClass *klass;
125     Object *obj;
126     ObjectProperty *prop;
127     ObjectPropertyIterator iter;
128     ObjectPropertyInfoList *prop_list = NULL;
129 
130     klass = module_object_class_by_name(typename);
131     if (klass == NULL) {
132         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
133                   "Device '%s' not found", typename);
134         return NULL;
135     }
136 
137     if (!object_class_dynamic_cast(klass, TYPE_DEVICE)
138         || object_class_is_abstract(klass)) {
139         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
140                    "a non-abstract device type");
141         return NULL;
142     }
143 
144     obj = object_new(typename);
145 
146     object_property_iter_init(&iter, obj);
147     while ((prop = object_property_iter_next(&iter))) {
148         ObjectPropertyInfo *info;
149 
150         /* Skip Object and DeviceState properties */
151         if (strcmp(prop->name, "type") == 0 ||
152             strcmp(prop->name, "realized") == 0 ||
153             strcmp(prop->name, "hotpluggable") == 0 ||
154             strcmp(prop->name, "hotplugged") == 0 ||
155             strcmp(prop->name, "parent_bus") == 0) {
156             continue;
157         }
158 
159         /* Skip legacy properties since they are just string versions of
160          * properties that we already list.
161          */
162         if (strstart(prop->name, "legacy-", NULL)) {
163             continue;
164         }
165 
166         info = g_new0(ObjectPropertyInfo, 1);
167         info->name = g_strdup(prop->name);
168         info->type = g_strdup(prop->type);
169         info->description = g_strdup(prop->description);
170         info->default_value = qobject_ref(prop->defval);
171 
172         QAPI_LIST_PREPEND(prop_list, info);
173     }
174 
175     object_unref(obj);
176 
177     return prop_list;
178 }
179 
180 ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename,
181                                              Error **errp)
182 {
183     ObjectClass *klass;
184     Object *obj = NULL;
185     ObjectProperty *prop;
186     ObjectPropertyIterator iter;
187     ObjectPropertyInfoList *prop_list = NULL;
188 
189     klass = object_class_by_name(typename);
190     if (klass == NULL) {
191         error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
192                   "Class '%s' not found", typename);
193         return NULL;
194     }
195 
196     if (!object_class_dynamic_cast(klass, TYPE_OBJECT)) {
197         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
198                    "a QOM type");
199         return NULL;
200     }
201 
202     if (object_class_is_abstract(klass)) {
203         object_class_property_iter_init(&iter, klass);
204     } else {
205         obj = object_new(typename);
206         object_property_iter_init(&iter, obj);
207     }
208     while ((prop = object_property_iter_next(&iter))) {
209         ObjectPropertyInfo *info;
210 
211         info = g_malloc0(sizeof(*info));
212         info->name = g_strdup(prop->name);
213         info->type = g_strdup(prop->type);
214         info->description = g_strdup(prop->description);
215         info->default_value = qobject_ref(prop->defval);
216 
217         QAPI_LIST_PREPEND(prop_list, info);
218     }
219 
220     object_unref(obj);
221 
222     return prop_list;
223 }
224 
225 void qmp_object_add(ObjectOptions *options, Error **errp)
226 {
227     user_creatable_add_qapi(options, errp);
228 }
229 
230 void qmp_object_del(const char *id, Error **errp)
231 {
232     user_creatable_del(id, errp);
233 }
234