target-mips/cpu.c

   1 /*
   2  * QEMU MIPS CPU
   3  *
   4  * Copyright (c) 2012 SUSE LINUX Products GmbH
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library 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 GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see
  18  * <http://www.gnu.org/licenses/lgpl-2.1.html>
  19  */
  20
  21 #include "cpu.h"
  22 #include "qemu-common.h"
  23
  24
  25 /* CPUClass::reset() */
  26 static void mips_cpu_reset(CPUState *s)
  27 {
  28     MIPSCPU *cpu = MIPS_CPU(s);
  29     MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(cpu);
  30     CPUMIPSState *env = &cpu->env;
  31
  32     if (qemu_loglevel_mask(CPU_LOG_RESET)) {
  33         qemu_log("CPU Reset (CPU %d)\n", s->cpu_index);
  34         log_cpu_state(env, 0);
  35     }
  36
  37     mcc->parent_reset(s);
  38
  39     memset(env, 0, offsetof(CPUMIPSState, breakpoints));
  40     tlb_flush(env, 1);
  41
  42     cpu_state_reset(env);
  43 }
  44
  45 static void mips_cpu_realizefn(DeviceState *dev, Error **errp)
  46 {
  47     MIPSCPU *cpu = MIPS_CPU(dev);
  48     MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(dev);
  49
  50     cpu_reset(CPU(cpu));
  51     qemu_init_vcpu(&cpu->env);
  52
  53     mcc->parent_realize(dev, errp);
  54 }
  55
  56 static void mips_cpu_initfn(Object *obj)
  57 {
  58     MIPSCPU *cpu = MIPS_CPU(obj);
  59     CPUMIPSState *env = &cpu->env;
  60
  61     cpu_exec_init(env);
  62
  63     if (tcg_enabled()) {
  64         mips_tcg_init();
  65     }
  66 }
  67
  68 static void mips_cpu_class_init(ObjectClass *c, void *data)
  69 {
  70     MIPSCPUClass *mcc = MIPS_CPU_CLASS(c);
  71     CPUClass *cc = CPU_CLASS(c);
  72     DeviceClass *dc = DEVICE_CLASS(c);
  73
  74     mcc->parent_realize = dc->realize;
  75     dc->realize = mips_cpu_realizefn;
  76
  77     mcc->parent_reset = cc->reset;
  78     cc->reset = mips_cpu_reset;
  79 }
  80
  81 static const TypeInfo mips_cpu_type_info = {
  82     .name = TYPE_MIPS_CPU,
  83     .parent = TYPE_CPU,
  84     .instance_size = sizeof(MIPSCPU),
  85     .instance_init = mips_cpu_initfn,
  86     .abstract = false,
  87     .class_size = sizeof(MIPSCPUClass),
  88     .class_init = mips_cpu_class_init,
  89 };
  90
  91 static void mips_cpu_register_types(void)
  92 {
  93     type_register_static(&mips_cpu_type_info);
  94 }
  95
  96 type_init(mips_cpu_register_types)