qom/cpu.c

   1 /*
   2  * QEMU CPU model
   3  *
   4  * Copyright (c) 2012 SUSE LINUX Products GmbH
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see
  18  * <http://www.gnu.org/licenses/gpl-2.0.html>
  19  */
  20
  21 #include "qom/cpu.h"
  22 #include "qemu-common.h"
  23
  24 void cpu_reset_interrupt(CPUState *cpu, int mask)
  25 {
  26     cpu->interrupt_request &= ~mask;
  27 }
  28
  29 void cpu_reset(CPUState *cpu)
  30 {
  31     CPUClass *klass = CPU_GET_CLASS(cpu);
  32
  33     if (klass->reset != NULL) {
  34         (*klass->reset)(cpu);
  35     }
  36 }
  37
  38 static void cpu_common_reset(CPUState *cpu)
  39 {
  40     cpu->exit_request = 0;
  41     cpu->interrupt_request = 0;
  42     cpu->current_tb = NULL;
  43     cpu->halted = 0;
  44 }
  45
  46 ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model)
  47 {
  48     CPUClass *cc = CPU_CLASS(object_class_by_name(typename));
  49
  50     return cc->class_by_name(cpu_model);
  51 }
  52
  53 static ObjectClass *cpu_common_class_by_name(const char *cpu_model)
  54 {
  55     return NULL;
  56 }
  57
  58 static void cpu_common_realizefn(DeviceState *dev, Error **errp)
  59 {
  60 }
  61
  62 static void cpu_class_init(ObjectClass *klass, void *data)
  63 {
  64     DeviceClass *dc = DEVICE_CLASS(klass);
  65     CPUClass *k = CPU_CLASS(klass);
  66
  67     k->class_by_name = cpu_common_class_by_name;
  68     k->reset = cpu_common_reset;
  69     dc->realize = cpu_common_realizefn;
  70     dc->no_user = 1;
  71 }
  72
  73 static const TypeInfo cpu_type_info = {
  74     .name = TYPE_CPU,
  75     .parent = TYPE_DEVICE,
  76     .instance_size = sizeof(CPUState),
  77     .abstract = true,
  78     .class_size = sizeof(CPUClass),
  79     .class_init = cpu_class_init,
  80 };
  81
  82 static void cpu_register_types(void)
  83 {
  84     type_register_static(&cpu_type_info);
  85 }
  86
  87 type_init(cpu_register_types)