unicorn/qemu/vl.c
2016-04-23 10:06:57 +08:00

173 lines
4.6 KiB
C

/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/* Unicorn Emulator Engine */
/* By Nguyen Anh Quynh, 2015 */
#include "hw/boards.h" // MachineClass
#include "sysemu/sysemu.h"
#include "sysemu/cpus.h"
#include "vl.h"
#include "uc_priv.h"
#define DEFAULT_RAM_SIZE 128
int smp_cpus = 1;
int smp_cores = 1;
int smp_threads = 1;
// cpus.c
void cpu_resume(CPUState *cpu)
{
cpu->stop = false;
cpu->stopped = false;
qemu_cpu_kick(cpu);
}
void qemu_cpu_kick(CPUState *cpu)
{
qemu_cond_broadcast(cpu->halt_cond);
}
void qemu_init_cpu_loop(struct uc_struct* uc)
{
qemu_cond_init(&uc->qemu_cpu_cond);
qemu_mutex_init(&uc->qemu_global_mutex);
}
void cpu_stop_current(struct uc_struct *uc)
{
if (uc->current_cpu) {
uc->current_cpu->stop = false;
uc->current_cpu->stopped = true;
cpu_exit(uc->current_cpu);
}
}
/***********************************************************/
/* machine registration */
MachineClass *find_default_machine(struct uc_struct *uc, int arch)
{
GSList *el, *machines = object_class_get_list(uc, TYPE_MACHINE, false);
MachineClass *mc = NULL;
for (el = machines; el; el = el->next) {
MachineClass *temp = el->data;
if ((temp->is_default) && (temp->arch == arch)) {
mc = temp;
break;
}
}
g_slist_free(machines);
return mc;
}
__attribute__ ((visibility ("default")))
int machine_initialize(struct uc_struct *uc)
{
MachineClass *machine_class;
MachineState *current_machine;
module_call_init(uc, MODULE_INIT_QOM);
register_types_object(uc);
machine_register_types(uc);
container_register_types(uc);
cpu_register_types(uc);
qdev_register_types(uc);
// Initialize arch specific.
uc->init_arch(uc);
module_call_init(uc, MODULE_INIT_MACHINE);
// this will auto initialize all register objects above.
machine_class = find_default_machine(uc, uc->arch);
if (machine_class == NULL) {
//fprintf(stderr, "No machine specified, and there is no default.\n"
// "Use -machine help to list supported machines!\n");
return -2;
}
current_machine = MACHINE(uc, object_new(uc, object_class_get_name(
OBJECT_CLASS(machine_class))));
uc->machine_state = current_machine;
current_machine->uc = uc;
uc->cpu_exec_init_all(uc);
machine_class->max_cpus = 1;
configure_accelerator(current_machine);
qemu_init_cpu_loop(uc);
current_machine->cpu_model = NULL;
return machine_class->init(uc, current_machine);
}
void qemu_system_reset_request(struct uc_struct* uc)
{
cpu_stop_current(uc);
}
void qemu_system_shutdown_request(void)
{
//shutdown_requested = 1;
}
static void machine_class_init(struct uc_struct *uc, ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(uc, oc);
QEMUMachine *qm = data;
mc->family = qm->family;
mc->name = qm->name;
mc->init = qm->init;
mc->reset = qm->reset;
mc->max_cpus = qm->max_cpus;
mc->is_default = qm->is_default;
mc->arch = qm->arch;
}
void qemu_register_machine(struct uc_struct *uc, QEMUMachine *m, const char *type_machine,
void (*init)(struct uc_struct *uc, ObjectClass *oc, void *data))
{
char *name = g_strconcat(m->name, TYPE_MACHINE_SUFFIX, NULL);
TypeInfo ti = {
.name = name,
.parent = type_machine,
.class_init = init,
.class_data = (void *)m,
};
if (init == NULL)
ti.class_init = machine_class_init;
type_register(uc, &ti);
g_free(name);
}