mirror of https://gitee.com/openkylin/qemu.git
101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
/*
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* QEMU accel class, system emulation components
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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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#include "qemu/osdep.h"
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#include "qemu/accel.h"
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#include "hw/boards.h"
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#include "sysemu/cpus.h"
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#include "accel-softmmu.h"
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int accel_init_machine(AccelState *accel, MachineState *ms)
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{
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AccelClass *acc = ACCEL_GET_CLASS(accel);
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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(OBJECT(accel));
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} else {
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object_set_accelerator_compat_props(acc->compat_props);
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}
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return ret;
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}
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AccelState *current_accel(void)
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{
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return current_machine->accelerator;
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}
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void accel_setup_post(MachineState *ms)
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{
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AccelState *accel = ms->accelerator;
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AccelClass *acc = ACCEL_GET_CLASS(accel);
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if (acc->setup_post) {
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acc->setup_post(ms, accel);
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}
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}
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/* initialize the arch-independent accel operation interfaces */
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void accel_init_ops_interfaces(AccelClass *ac)
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{
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const char *ac_name;
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char *ops_name;
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AccelOpsClass *ops;
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ac_name = object_class_get_name(OBJECT_CLASS(ac));
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g_assert(ac_name != NULL);
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ops_name = g_strdup_printf("%s" ACCEL_OPS_SUFFIX, ac_name);
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ops = ACCEL_OPS_CLASS(object_class_by_name(ops_name));
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g_free(ops_name);
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/*
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* all accelerators need to define ops, providing at least a mandatory
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* non-NULL create_vcpu_thread operation.
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*/
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g_assert(ops != NULL);
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if (ops->ops_init) {
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ops->ops_init(ops);
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}
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cpus_register_accel(ops);
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}
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static const TypeInfo accel_ops_type_info = {
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.name = TYPE_ACCEL_OPS,
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.parent = TYPE_OBJECT,
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.abstract = true,
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.class_size = sizeof(AccelOpsClass),
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};
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static void accel_softmmu_register_types(void)
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{
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type_register_static(&accel_ops_type_info);
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}
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type_init(accel_softmmu_register_types);
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