target-s390x/cpu.c

   1 /*
   2  * QEMU S/390 CPU
   3  *
   4  * Copyright (c) 2009 Ulrich Hecht
   5  * Copyright (c) 2011 Alexander Graf
   6  * Copyright (c) 2012 SUSE LINUX Products GmbH
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, see
  20  * <http://www.gnu.org/licenses/lgpl-2.1.html>
  21  */
  22
  23 #include "cpu-qom.h"
  24 #include "qemu-common.h"
  25 #include "qemu-timer.h"
  26
  27
  28 /* CPUClass::reset() */
  29 static void s390_cpu_reset(CPUState *s)
  30 {
  31     S390CPU *cpu = S390_CPU(s);
  32     S390CPUClass *scc = S390_CPU_GET_CLASS(cpu);
  33     CPUS390XState *env = &cpu->env;
  34
  35     if (qemu_loglevel_mask(CPU_LOG_RESET)) {
  36         qemu_log("CPU Reset (CPU %d)\n", env->cpu_index);
  37         log_cpu_state(env, 0);
  38     }
  39
  40     scc->parent_reset(s);
  41
  42     memset(env, 0, offsetof(CPUS390XState, breakpoints));
  43     /* FIXME: reset vector? */
  44     tlb_flush(env, 1);
  45     s390_add_running_cpu(env);
  46 }
  47
  48 static void s390_cpu_class_init(ObjectClass *oc, void *data)
  49 {
  50     S390CPUClass *scc = S390_CPU_CLASS(oc);
  51     CPUClass *cc = CPU_CLASS(scc);
  52
  53     scc->parent_reset = cc->reset;
  54     cc->reset = s390_cpu_reset;
  55 }
  56
  57 static const TypeInfo s390_cpu_type_info = {
  58     .name = TYPE_S390_CPU,
  59     .parent = TYPE_CPU,
  60     .instance_size = sizeof(S390CPU),
  61     .abstract = false,
  62     .class_size = sizeof(S390CPUClass),
  63     .class_init = s390_cpu_class_init,
  64 };
  65
  66 static void s390_cpu_register_types(void)
  67 {
  68     type_register_static(&s390_cpu_type_info);
  69 }
  70
  71 type_init(s390_cpu_register_types)