LXR qemu/accel/accel-common.c

   1/*
   2 * QEMU accel class, components common to system emulation and user mode
   3 *
   4 * Copyright (c) 2003-2008 Fabrice Bellard
   5 * Copyright (c) 2014 Red Hat Inc.
   6 *
   7 * Permission is hereby granted, free of charge, to any person obtaining a copy
   8 * of this software and associated documentation files (the "Software"), to deal
   9 * in the Software without restriction, including without limitation the rights
  10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11 * copies of the Software, and to permit persons to whom the Software is
  12 * furnished to do so, subject to the following conditions:
  13 *
  14 * The above copyright notice and this permission notice shall be included in
  15 * all copies or substantial portions of the Software.
  16 *
  17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23 * THE SOFTWARE.
  24 */
  25
  26#include "qemu/osdep.h"
  27#include "qemu/accel.h"
  28
  29#include "cpu.h"
  30#include "hw/core/accel-cpu.h"
  31
  32#ifndef CONFIG_USER_ONLY
  33#include "accel-softmmu.h"
  34#endif /* !CONFIG_USER_ONLY */
  35
  36static const TypeInfo accel_type = {
  37    .name = TYPE_ACCEL,
  38    .parent = TYPE_OBJECT,
  39    .class_size = sizeof(AccelClass),
  40    .instance_size = sizeof(AccelState),
  41};
  42
  43/* Lookup AccelClass from opt_name. Returns NULL if not found */
  44AccelClass *accel_find(const char *opt_name)
  45{
  46    char *class_name = g_strdup_printf(ACCEL_CLASS_NAME("%s"), opt_name);
  47    AccelClass *ac = ACCEL_CLASS(object_class_by_name(class_name));
  48    g_free(class_name);
  49    return ac;
  50}
  51
  52static void accel_init_cpu_int_aux(ObjectClass *klass, void *opaque)
  53{
  54    CPUClass *cc = CPU_CLASS(klass);
  55    AccelCPUClass *accel_cpu = opaque;
  56
  57    cc->accel_cpu = accel_cpu;
  58    if (accel_cpu->cpu_class_init) {
  59        accel_cpu->cpu_class_init(cc);
  60    }
  61}
  62
  63/* initialize the arch-specific accel CpuClass interfaces */
  64static void accel_init_cpu_interfaces(AccelClass *ac)
  65{
  66    const char *ac_name; /* AccelClass name */
  67    char *acc_name;      /* AccelCPUClass name */
  68    ObjectClass *acc;    /* AccelCPUClass */
  69
  70    ac_name = object_class_get_name(OBJECT_CLASS(ac));
  71    g_assert(ac_name != NULL);
  72
  73    acc_name = g_strdup_printf("%s-%s", ac_name, CPU_RESOLVING_TYPE);
  74    acc = object_class_by_name(acc_name);
  75    g_free(acc_name);
  76
  77    if (acc) {
  78        object_class_foreach(accel_init_cpu_int_aux,
  79                             CPU_RESOLVING_TYPE, false, acc);
  80    }
  81}
  82
  83void accel_init_interfaces(AccelClass *ac)
  84{
  85#ifndef CONFIG_USER_ONLY
  86    accel_init_ops_interfaces(ac);
  87#endif /* !CONFIG_USER_ONLY */
  88
  89    accel_init_cpu_interfaces(ac);
  90}
  91
  92static const TypeInfo accel_cpu_type = {
  93    .name = TYPE_ACCEL_CPU,
  94    .parent = TYPE_OBJECT,
  95    .abstract = true,
  96    .class_size = sizeof(AccelCPUClass),
  97};
  98
  99static void register_accel_types(void)
 100{
 101    type_register_static(&accel_type);
 102    type_register_static(&accel_cpu_type);
 103}
 104
 105type_init(register_accel_types);
 106