1/*
2 * CPU core abstract device
3 *
4 * Copyright (C) 2016 Bharata B Rao <bharata@linux.vnet.ibm.com>
5 *
6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
7 * See the COPYING file in the top-level directory.
8 */
9
10#include "qemu/osdep.h"
11#include "hw/cpu/core.h"
12#include "qapi/visitor.h"
13#include "qemu/module.h"
14#include "qapi/error.h"
15#include "sysemu/cpus.h"
16#include "hw/boards.h"
17
18static void core_prop_get_core_id(Object *obj, Visitor *v, const char *name,
19 void *opaque, Error **errp)
20{
21 CPUCore *core = CPU_CORE(obj);
22 int64_t value = core->core_id;
23
24 visit_type_int(v, name, &value, errp);
25}
26
27static void core_prop_set_core_id(Object *obj, Visitor *v, const char *name,
28 void *opaque, Error **errp)
29{
30 CPUCore *core = CPU_CORE(obj);
31 Error *local_err = NULL;
32 int64_t value;
33
34 visit_type_int(v, name, &value, &local_err);
35 if (local_err) {
36 error_propagate(errp, local_err);
37 return;
38 }
39
40 if (value < 0) {
41 error_setg(errp, "Invalid core id %"PRId64, value);
42 return;
43 }
44
45 core->core_id = value;
46}
47
48static void core_prop_get_nr_threads(Object *obj, Visitor *v, const char *name,
49 void *opaque, Error **errp)
50{
51 CPUCore *core = CPU_CORE(obj);
52 int64_t value = core->nr_threads;
53
54 visit_type_int(v, name, &value, errp);
55}
56
57static void core_prop_set_nr_threads(Object *obj, Visitor *v, const char *name,
58 void *opaque, Error **errp)
59{
60 CPUCore *core = CPU_CORE(obj);
61 Error *local_err = NULL;
62 int64_t value;
63
64 visit_type_int(v, name, &value, &local_err);
65 if (local_err) {
66 error_propagate(errp, local_err);
67 return;
68 }
69
70 core->nr_threads = value;
71}
72
73static void cpu_core_instance_init(Object *obj)
74{
75 MachineState *ms = MACHINE(qdev_get_machine());
76 CPUCore *core = CPU_CORE(obj);
77
78 object_property_add(obj, "core-id", "int", core_prop_get_core_id,
79 core_prop_set_core_id, NULL, NULL, NULL);
80 object_property_add(obj, "nr-threads", "int", core_prop_get_nr_threads,
81 core_prop_set_nr_threads, NULL, NULL, NULL);
82 core->nr_threads = ms->smp.threads;
83}
84
85static void cpu_core_class_init(ObjectClass *oc, void *data)
86{
87 DeviceClass *dc = DEVICE_CLASS(oc);
88
89 set_bit(DEVICE_CATEGORY_CPU, dc->categories);
90}
91
92static const TypeInfo cpu_core_type_info = {
93 .name = TYPE_CPU_CORE,
94 .parent = TYPE_DEVICE,
95 .abstract = true,
96 .class_init = cpu_core_class_init,
97 .instance_size = sizeof(CPUCore),
98 .instance_init = cpu_core_instance_init,
99};
100
101static void cpu_core_register_types(void)
102{
103 type_register_static(&cpu_core_type_info);
104}
105
106type_init(cpu_core_register_types)
107