124 lines
3.8 KiB
C
124 lines
3.8 KiB
C
/*
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* QEMU System Emulator, accelerator interfaces
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2014 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/* Modified for Unicorn Engine by Nguyen Anh Quynh, 2015 */
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#include "sysemu/accel.h"
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#include "hw/boards.h"
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#include "qemu-common.h"
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#include "sysemu/sysemu.h"
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#include "qom/object.h"
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#include "hw/boards.h"
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// use default size for TCG translated block
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#define TCG_TB_SIZE 0
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static bool tcg_allowed = true;
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static int tcg_init(MachineState *ms);
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static AccelClass *accel_find(struct uc_struct *uc, const char *opt_name);
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static int accel_init_machine(AccelClass *acc, MachineState *ms);
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static void tcg_accel_class_init(struct uc_struct *uc, ObjectClass *oc, void *data);
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static int tcg_init(MachineState *ms)
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{
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ms->uc->tcg_exec_init(ms->uc, TCG_TB_SIZE * 1024 * 1024); // arch-dependent
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return 0;
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}
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static const TypeInfo accel_type = {
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.name = TYPE_ACCEL,
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.parent = TYPE_OBJECT,
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.class_size = sizeof(AccelClass),
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.instance_size = sizeof(AccelState),
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};
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#define TYPE_TCG_ACCEL ACCEL_CLASS_NAME("tcg")
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static const TypeInfo tcg_accel_type = {
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.name = TYPE_TCG_ACCEL,
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.parent = TYPE_ACCEL,
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.class_init = tcg_accel_class_init,
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};
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int configure_accelerator(MachineState *ms)
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{
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int ret;
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bool accel_initialised = false;
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AccelClass *acc;
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acc = accel_find(ms->uc, "tcg");
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ret = accel_init_machine(acc, ms);
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if (ret < 0) {
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fprintf(stderr, "failed to initialize %s: %s\n",
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acc->name,
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strerror(-ret));
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} else {
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accel_initialised = true;
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}
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return !accel_initialised;
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}
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void register_accel_types(struct uc_struct *uc)
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{
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type_register_static(uc, &accel_type);
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type_register_static(uc, &tcg_accel_type);
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}
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static void tcg_accel_class_init(struct uc_struct *uc, ObjectClass *oc, void *data)
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{
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AccelClass *ac = ACCEL_CLASS(uc, oc);
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ac->name = "tcg";
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ac->init_machine = tcg_init;
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ac->allowed = &tcg_allowed;
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}
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/* Lookup AccelClass from opt_name. Returns NULL if not found */
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static AccelClass *accel_find(struct uc_struct *uc, const char *opt_name)
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{
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char *class_name = g_strdup_printf(ACCEL_CLASS_NAME("%s"), opt_name);
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AccelClass *ac = ACCEL_CLASS(uc, object_class_by_name(uc, class_name));
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g_free(class_name);
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return ac;
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}
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static int accel_init_machine(AccelClass *acc, MachineState *ms)
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{
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ObjectClass *oc = OBJECT_CLASS(acc);
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const char *cname = object_class_get_name(oc);
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AccelState *accel = ACCEL(ms->uc, object_new(ms->uc, cname));
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int ret;
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ms->accelerator = accel;
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*(acc->allowed) = true;
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ret = acc->init_machine(ms);
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if (ret < 0) {
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ms->accelerator = NULL;
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*(acc->allowed) = false;
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object_unref(ms->uc, OBJECT(accel));
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}
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return ret;
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}
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