target-alpha/cpu.c

   1 /*
   2  * QEMU Alpha CPU
   3  *
   4  * Copyright (c) 2007 Jocelyn Mayer
   5  * Copyright (c) 2012 SUSE LINUX Products GmbH
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, see
  19  * <http://www.gnu.org/licenses/lgpl-2.1.html>
  20  */
  21
  22 #include "cpu.h"
  23 #include "qemu-common.h"
  24
  25
  26 static void alpha_cpu_initfn(Object *obj)
  27 {
  28     AlphaCPU *cpu = ALPHA_CPU(obj);
  29     CPUAlphaState *env = &cpu->env;
  30
  31     cpu_exec_init(env);
  32     tlb_flush(env, 1);
  33
  34 #if defined(CONFIG_USER_ONLY)
  35     env->ps = PS_USER_MODE;
  36     cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD
  37                                | FPCR_UNFD | FPCR_INED | FPCR_DNOD
  38                                | FPCR_DYN_NORMAL));
  39 #endif
  40     env->lock_addr = -1;
  41     env->fen = 1;
  42 }
  43
  44 static const TypeInfo alpha_cpu_type_info = {
  45     .name = TYPE_ALPHA_CPU,
  46     .parent = TYPE_CPU,
  47     .instance_size = sizeof(AlphaCPU),
  48     .instance_init = alpha_cpu_initfn,
  49     .abstract = false,
  50     .class_size = sizeof(AlphaCPUClass),
  51 };
  52
  53 static void alpha_cpu_register_types(void)
  54 {
  55     type_register_static(&alpha_cpu_type_info);
  56 }
  57
  58 type_init(alpha_cpu_register_types)