/* * CPU core abstract device * * Copyright (C) 2016 Bharata B Rao <bharata@linux.vnet.ibm.com> * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. */ #include "qemu/osdep.h" #include "hw/cpu/core.h" #include "qapi/visitor.h" #include "qemu/module.h" #include "qapi/error.h" #include "sysemu/cpus.h" #include "hw/boards.h" static void core_prop_get_core_id(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { CPUCore *core = CPU_CORE(obj); int64_t value = core->core_id; visit_type_int(v, name, &value, errp); } static void core_prop_set_core_id(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { CPUCore *core = CPU_CORE(obj); int64_t value; if (!visit_type_int(v, name, &value, errp)) { return; } if (value < 0) { error_setg(errp, "Invalid core id %"PRId64, value); return; } core->core_id = value; } static void core_prop_get_nr_threads(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { CPUCore *core = CPU_CORE(obj); int64_t value = core->nr_threads; visit_type_int(v, name, &value, errp); } static void core_prop_set_nr_threads(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { CPUCore *core = CPU_CORE(obj); int64_t value; if (!visit_type_int(v, name, &value, errp)) { return; } core->nr_threads = value; } static void cpu_core_instance_init(Object *obj) { CPUCore *core = CPU_CORE(obj); /* * Only '-device something-cpu-core,help' can get us there before * the machine has been created. We don't care to set nr_threads * in this case since it isn't used afterwards. */ if (current_machine) { core->nr_threads = current_machine->smp.threads; } } static void cpu_core_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); set_bit(DEVICE_CATEGORY_CPU, dc->categories); object_class_property_add(oc, "core-id", "int", core_prop_get_core_id, core_prop_set_core_id, NULL, NULL); object_class_property_add(oc, "nr-threads", "int", core_prop_get_nr_threads, core_prop_set_nr_threads, NULL, NULL); } static const TypeInfo cpu_core_type_info = { .name = TYPE_CPU_CORE, .parent = TYPE_DEVICE, .abstract = true, .class_init = cpu_core_class_init, .instance_size = sizeof(CPUCore), .instance_init = cpu_core_instance_init, }; static void cpu_core_register_types(void) { type_register_static(&cpu_core_type_info); } type_init(cpu_core_register_types)