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/*
* QEMU HAX support
*
* Copyright IBM, Corp. 2008
* Red Hat, Inc. 2008
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
* Glauber Costa <gcosta@redhat.com>
*
* Copyright (c) 2011 Intel Corporation
* Written by:
* Jiang Yunhong<yunhong.jiang@intel.com>
* Xin Xiaohui<xiaohui.xin@intel.com>
* Zhang Xiantao<xiantao.zhang@intel.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 "qemu/error-report.h"
#include "qemu/main-loop.h"
#include "sysemu/runstate.h"
#include "sysemu/cpus.h"
#include "qemu/guest-random.h"
#include "hax-accel-ops.h"
static void *hax_cpu_thread_fn(void *arg)
{
CPUState *cpu = arg;
int r;
rcu_register_thread();
qemu_mutex_lock_iothread();
qemu_thread_get_self(cpu->thread);
cpu->thread_id = qemu_get_thread_id();
current_cpu = cpu;
hax_init_vcpu(cpu);
cpu_thread_signal_created(cpu);
qemu_guest_random_seed_thread_part2(cpu->random_seed);
do {
if (cpu_can_run(cpu)) {
r = hax_smp_cpu_exec(cpu);
if (r == EXCP_DEBUG) {
cpu_handle_guest_debug(cpu);
}
}
qemu_wait_io_event(cpu);
} while (!cpu->unplug || cpu_can_run(cpu));
rcu_unregister_thread();
return NULL;
}
static void hax_start_vcpu_thread(CPUState *cpu)
{
char thread_name[VCPU_THREAD_NAME_SIZE];
cpu->thread = g_malloc0(sizeof(QemuThread));
cpu->halt_cond = g_malloc0(sizeof(QemuCond));
qemu_cond_init(cpu->halt_cond);
snprintf(thread_name, VCPU_THREAD_NAME_SIZE, "CPU %d/HAX",
cpu->cpu_index);
qemu_thread_create(cpu->thread, thread_name, hax_cpu_thread_fn,
cpu, QEMU_THREAD_JOINABLE);
#ifdef _WIN32
cpu->hThread = qemu_thread_get_handle(cpu->thread);
#endif
}
static void hax_accel_ops_class_init(ObjectClass *oc, void *data)
{
AccelOpsClass *ops = ACCEL_OPS_CLASS(oc);
ops->create_vcpu_thread = hax_start_vcpu_thread;
ops->kick_vcpu_thread = hax_kick_vcpu_thread;
ops->synchronize_post_reset = hax_cpu_synchronize_post_reset;
ops->synchronize_post_init = hax_cpu_synchronize_post_init;
ops->synchronize_state = hax_cpu_synchronize_state;
ops->synchronize_pre_loadvm = hax_cpu_synchronize_pre_loadvm;
}
static const TypeInfo hax_accel_ops_type = {
.name = ACCEL_OPS_NAME("hax"),
.parent = TYPE_ACCEL_OPS,
.class_init = hax_accel_ops_class_init,
.abstract = true,
};
static void hax_accel_ops_register_types(void)
{
type_register_static(&hax_accel_ops_type);
}
type_init(hax_accel_ops_register_types);
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