1 /*
2 * QEMU LoongArch CPU (monitor definitions)
3 *
4 * SPDX-FileCopyrightText: 2021 Loongson Technology Corporation Limited
5 *
6 * SPDX-License-Identifier: GPL-2.0-or-later
7 */
8
9 #include "qemu/osdep.h"
10 #include "qapi/error.h"
11 #include "qapi/qapi-commands-machine-target.h"
12 #include "cpu.h"
13 #include "qapi/qmp/qdict.h"
14 #include "qapi/qobject-input-visitor.h"
15 #include "qom/qom-qobject.h"
16
loongarch_cpu_add_definition(gpointer data,gpointer user_data)17 static void loongarch_cpu_add_definition(gpointer data, gpointer user_data)
18 {
19 ObjectClass *oc = data;
20 CpuDefinitionInfoList **cpu_list = user_data;
21 CpuDefinitionInfo *info = g_new0(CpuDefinitionInfo, 1);
22 const char *typename = object_class_get_name(oc);
23
24 info->name = cpu_model_from_type(typename);
25 info->q_typename = g_strdup(typename);
26
27 QAPI_LIST_PREPEND(*cpu_list, info);
28 }
29
qmp_query_cpu_definitions(Error ** errp)30 CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
31 {
32 CpuDefinitionInfoList *cpu_list = NULL;
33 GSList *list;
34
35 list = object_class_get_list(TYPE_LOONGARCH_CPU, false);
36 g_slist_foreach(list, loongarch_cpu_add_definition, &cpu_list);
37 g_slist_free(list);
38
39 return cpu_list;
40 }
41
42 static const char *cpu_model_advertised_features[] = {
43 "lsx", "lasx", "lbt", "pmu", NULL
44 };
45
qmp_query_cpu_model_expansion(CpuModelExpansionType type,CpuModelInfo * model,Error ** errp)46 CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
47 CpuModelInfo *model,
48 Error **errp)
49 {
50 Visitor *visitor;
51 bool ok;
52 CpuModelExpansionInfo *expansion_info;
53 QDict *qdict_out;
54 ObjectClass *oc;
55 Object *obj;
56 const char *name;
57 int i;
58
59 if (type != CPU_MODEL_EXPANSION_TYPE_STATIC) {
60 error_setg(errp, "The requested expansion type is not supported");
61 return NULL;
62 }
63
64 if (model->props) {
65 visitor = qobject_input_visitor_new(model->props);
66 if (!visit_start_struct(visitor, "model.props", NULL, 0, errp)) {
67 visit_free(visitor);
68 return NULL;
69 }
70
71 ok = visit_check_struct(visitor, errp);
72 visit_end_struct(visitor, NULL);
73 visit_free(visitor);
74 if (!ok) {
75 return NULL;
76 }
77 }
78
79 oc = cpu_class_by_name(TYPE_LOONGARCH_CPU, model->name);
80 if (!oc) {
81 error_setg(errp, "The CPU type '%s' is not a recognized LoongArch CPU type",
82 model->name);
83 return NULL;
84 }
85
86 obj = object_new(object_class_get_name(oc));
87
88 expansion_info = g_new0(CpuModelExpansionInfo, 1);
89 expansion_info->model = g_malloc0(sizeof(*expansion_info->model));
90 expansion_info->model->name = g_strdup(model->name);
91
92 qdict_out = qdict_new();
93
94 i = 0;
95 while ((name = cpu_model_advertised_features[i++]) != NULL) {
96 ObjectProperty *prop = object_property_find(obj, name);
97 if (prop) {
98 QObject *value;
99
100 assert(prop->get);
101 value = object_property_get_qobject(obj, name, &error_abort);
102
103 qdict_put_obj(qdict_out, name, value);
104 }
105 }
106
107 if (!qdict_size(qdict_out)) {
108 qobject_unref(qdict_out);
109 } else {
110 expansion_info->model->props = QOBJECT(qdict_out);
111 }
112
113 object_unref(obj);
114
115 return expansion_info;
116 }
117