]> Git Repo - qemu.git/blob - hw/cpu/core.c
osdep: protect qemu/osdep.h with extern "C"
[qemu.git] / hw / cpu / core.c
1 /*
2  * CPU core abstract device
3  *
4  * Copyright (C) 2016 Bharata B Rao <[email protected]>
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
18 static 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
27 static 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     int64_t value;
32
33     if (!visit_type_int(v, name, &value, errp)) {
34         return;
35     }
36
37     if (value < 0) {
38         error_setg(errp, "Invalid core id %"PRId64, value);
39         return;
40     }
41
42     core->core_id = value;
43 }
44
45 static void core_prop_get_nr_threads(Object *obj, Visitor *v, const char *name,
46                                      void *opaque, Error **errp)
47 {
48     CPUCore *core = CPU_CORE(obj);
49     int64_t value = core->nr_threads;
50
51     visit_type_int(v, name, &value, errp);
52 }
53
54 static void core_prop_set_nr_threads(Object *obj, Visitor *v, const char *name,
55                                      void *opaque, Error **errp)
56 {
57     CPUCore *core = CPU_CORE(obj);
58     int64_t value;
59
60     if (!visit_type_int(v, name, &value, errp)) {
61         return;
62     }
63
64     core->nr_threads = value;
65 }
66
67 static void cpu_core_instance_init(Object *obj)
68 {
69     CPUCore *core = CPU_CORE(obj);
70
71     /*
72      * Only '-device something-cpu-core,help' can get us there before
73      * the machine has been created. We don't care to set nr_threads
74      * in this case since it isn't used afterwards.
75      */
76     if (current_machine) {
77         core->nr_threads = current_machine->smp.threads;
78     }
79 }
80
81 static void cpu_core_class_init(ObjectClass *oc, void *data)
82 {
83     DeviceClass *dc = DEVICE_CLASS(oc);
84
85     set_bit(DEVICE_CATEGORY_CPU, dc->categories);
86     object_class_property_add(oc, "core-id", "int", core_prop_get_core_id,
87                               core_prop_set_core_id, NULL, NULL);
88     object_class_property_add(oc, "nr-threads", "int", core_prop_get_nr_threads,
89                               core_prop_set_nr_threads, NULL, NULL);
90 }
91
92 static 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
101 static void cpu_core_register_types(void)
102 {
103     type_register_static(&cpu_core_type_info);
104 }
105
106 type_init(cpu_core_register_types)
This page took 0.027547 seconds and 4 git commands to generate.