target-xtensa/cpu.c

   1 /*
   2  * QEMU Xtensa CPU
   3  *
   4  * Copyright (c) 2012 SUSE LINUX Products GmbH
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions are met:
   9  *     * Redistributions of source code must retain the above copyright
  10  *       notice, this list of conditions and the following disclaimer.
  11  *     * Redistributions in binary form must reproduce the above copyright
  12  *       notice, this list of conditions and the following disclaimer in the
  13  *       documentation and/or other materials provided with the distribution.
  14  *     * Neither the name of the Open Source and Linux Lab nor the
  15  *       names of its contributors may be used to endorse or promote products
  16  *       derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  22  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  25  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include "cpu-qom.h"
  31 #include "qemu-common.h"
  32
  33
  34 /* CPUClass::reset() */
  35 static void xtensa_cpu_reset(CPUState *s)
  36 {
  37     XtensaCPU *cpu = XTENSA_CPU(s);
  38     XtensaCPUClass *xcc = XTENSA_CPU_GET_CLASS(cpu);
  39     CPUXtensaState *env = &cpu->env;
  40
  41     xcc->parent_reset(s);
  42
  43     cpu_state_reset(env);
  44 }
  45
  46 static void xtensa_cpu_class_init(ObjectClass *oc, void *data)
  47 {
  48     CPUClass *cc = CPU_CLASS(oc);
  49     XtensaCPUClass *xcc = XTENSA_CPU_CLASS(cc);
  50
  51     xcc->parent_reset = cc->reset;
  52     cc->reset = xtensa_cpu_reset;
  53 }
  54
  55 static const TypeInfo xtensa_cpu_type_info = {
  56     .name = TYPE_XTENSA_CPU,
  57     .parent = TYPE_CPU,
  58     .instance_size = sizeof(XtensaCPU),
  59     .abstract = false,
  60     .class_size = sizeof(XtensaCPUClass),
  61     .class_init = xtensa_cpu_class_init,
  62 };
  63
  64 static void xtensa_cpu_register_types(void)
  65 {
  66     type_register_static(&xtensa_cpu_type_info);
  67 }
  68
  69 type_init(xtensa_cpu_register_types)