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 | |
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 | 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 | |
48 | static 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 | |
57 | static 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 | |
73 | static 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 | |
85 | static 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 | |
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) |
107 | |