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/*
* 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/boards.h"
#include "hw/cpu/core.h"
#include "qapi/error.h"
#include "qapi/visitor.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)
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