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