mirror of https://gitlab.com/qemu-project/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/*
|
|
* Test Machine for the IBM PPE42 processor
|
|
*
|
|
* Copyright (c) 2025, IBM Corporation.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu/units.h"
|
|
#include "qemu/error-report.h"
|
|
#include "system/address-spaces.h"
|
|
#include "hw/boards.h"
|
|
#include "hw/ppc/ppc.h"
|
|
#include "system/system.h"
|
|
#include "system/reset.h"
|
|
#include "system/kvm.h"
|
|
#include "qapi/error.h"
|
|
|
|
#define TYPE_PPE42_MACHINE MACHINE_TYPE_NAME("ppe42_machine")
|
|
typedef MachineClass Ppe42MachineClass;
|
|
typedef struct Ppe42MachineState Ppe42MachineState;
|
|
DECLARE_OBJ_CHECKERS(Ppe42MachineState, Ppe42MachineClass,
|
|
PPE42_MACHINE, TYPE_PPE42_MACHINE)
|
|
|
|
struct Ppe42MachineState {
|
|
MachineState parent_obj;
|
|
|
|
PowerPCCPU cpu;
|
|
};
|
|
|
|
static void main_cpu_reset(void *opaque)
|
|
{
|
|
PowerPCCPU *cpu = opaque;
|
|
|
|
cpu_reset(CPU(cpu));
|
|
}
|
|
|
|
static void ppe42_machine_init(MachineState *machine)
|
|
{
|
|
Ppe42MachineState *pms = PPE42_MACHINE(machine);
|
|
PowerPCCPU *cpu = &pms->cpu;
|
|
|
|
if (kvm_enabled()) {
|
|
error_report("machine %s does not support the KVM accelerator",
|
|
MACHINE_GET_CLASS(machine)->name);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if (machine->ram_size > 512 * KiB) {
|
|
error_report("RAM size more than 512 KiB is not supported");
|
|
exit(1);
|
|
}
|
|
|
|
/* init CPU */
|
|
object_initialize_child(OBJECT(pms), "cpu", cpu, machine->cpu_type);
|
|
if (!qdev_realize(DEVICE(cpu), NULL, &error_fatal)) {
|
|
return;
|
|
}
|
|
|
|
qemu_register_reset(main_cpu_reset, cpu);
|
|
|
|
/* This sets the decrementer timebase */
|
|
ppc_booke_timers_init(cpu, 37500000, PPC_TIMER_PPE);
|
|
|
|
/* RAM */
|
|
memory_region_add_subregion(get_system_memory(), 0xfff80000, machine->ram);
|
|
}
|
|
|
|
|
|
static void ppe42_machine_class_init(ObjectClass *oc, const void *data)
|
|
{
|
|
MachineClass *mc = MACHINE_CLASS(oc);
|
|
static const char * const valid_cpu_types[] = {
|
|
POWERPC_CPU_TYPE_NAME("PPE42"),
|
|
POWERPC_CPU_TYPE_NAME("PPE42X"),
|
|
POWERPC_CPU_TYPE_NAME("PPE42XM"),
|
|
NULL,
|
|
};
|
|
|
|
mc->desc = "PPE42 Test Machine";
|
|
mc->init = ppe42_machine_init;
|
|
mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("PPE42XM");
|
|
mc->valid_cpu_types = valid_cpu_types;
|
|
mc->default_ram_id = "ram";
|
|
mc->default_ram_size = 512 * KiB;
|
|
}
|
|
|
|
static const TypeInfo ppe42_machine_info = {
|
|
.name = TYPE_PPE42_MACHINE,
|
|
.parent = TYPE_MACHINE,
|
|
.instance_size = sizeof(Ppe42MachineState),
|
|
.class_init = ppe42_machine_class_init,
|
|
.class_size = sizeof(Ppe42MachineClass),
|
|
};
|
|
|
|
static void ppe42_machine_register_types(void)
|
|
{
|
|
type_register_static(&ppe42_machine_info);
|
|
}
|
|
|
|
type_init(ppe42_machine_register_types);
|