8e2b72990e
Change the tcg_enabled() and make sure user build still enable tcg even x86 softmmu disable tcg. Signed-off-by: Yang Zhong <yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/*
|
|
* QEMU System Emulator, accelerator interfaces
|
|
*
|
|
* Copyright (c) 2003-2008 Fabrice Bellard
|
|
* Copyright (c) 2014 Red Hat Inc.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "sysemu/accel.h"
|
|
#include "sysemu/sysemu.h"
|
|
#include "qom/object.h"
|
|
#include "qemu-common.h"
|
|
#include "qom/cpu.h"
|
|
#include "sysemu/cpus.h"
|
|
#include "qemu/main-loop.h"
|
|
|
|
unsigned long tcg_tb_size;
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
/* mask must never be zero, except for A20 change call */
|
|
static void tcg_handle_interrupt(CPUState *cpu, int mask)
|
|
{
|
|
int old_mask;
|
|
g_assert(qemu_mutex_iothread_locked());
|
|
|
|
old_mask = cpu->interrupt_request;
|
|
cpu->interrupt_request |= mask;
|
|
|
|
/*
|
|
* If called from iothread context, wake the target cpu in
|
|
* case its halted.
|
|
*/
|
|
if (!qemu_cpu_is_self(cpu)) {
|
|
qemu_cpu_kick(cpu);
|
|
} else {
|
|
cpu->icount_decr.u16.high = -1;
|
|
if (use_icount &&
|
|
!cpu->can_do_io
|
|
&& (mask & ~old_mask) != 0) {
|
|
cpu_abort(cpu, "Raised interrupt while not in I/O function");
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static int tcg_init(MachineState *ms)
|
|
{
|
|
tcg_exec_init(tcg_tb_size * 1024 * 1024);
|
|
cpu_interrupt_handler = tcg_handle_interrupt;
|
|
return 0;
|
|
}
|
|
|
|
static void tcg_accel_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
AccelClass *ac = ACCEL_CLASS(oc);
|
|
ac->name = "tcg";
|
|
ac->init_machine = tcg_init;
|
|
ac->allowed = &tcg_allowed;
|
|
}
|
|
|
|
#define TYPE_TCG_ACCEL ACCEL_CLASS_NAME("tcg")
|
|
|
|
static const TypeInfo tcg_accel_type = {
|
|
.name = TYPE_TCG_ACCEL,
|
|
.parent = TYPE_ACCEL,
|
|
.class_init = tcg_accel_class_init,
|
|
};
|
|
|
|
static void register_accel_types(void)
|
|
{
|
|
type_register_static(&tcg_accel_type);
|
|
}
|
|
|
|
type_init(register_accel_types);
|