target-ppc/helper.c

   1 /*
   2  *  PowerPC emulation helpers for QEMU.
   3  *
   4  *  Copyright (c) 2003-2007 Jocelyn Mayer
   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 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 <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "cpu.h"
  21 #include "helper_regs.h"
  22 #include "kvm.h"
  23 #include "kvm_ppc.h"
  24 #include "cpus.h"
  25
  26 /*****************************************************************************/
  27 /* Special registers manipulation */
  28
  29 /* GDBstub can read and write MSR... */
  30 void ppc_store_msr(CPUPPCState *env, target_ulong value)
  31 {
  32     hreg_store_msr(env, value, 0);
  33 }
  34
  35 PowerPCCPU *cpu_ppc_init(const char *cpu_model)
  36 {
  37     PowerPCCPU *cpu;
  38     CPUPPCState *env;
  39     const ppc_def_t *def;
  40
  41     def = cpu_ppc_find_by_name(cpu_model);
  42     if (!def) {
  43         return NULL;
  44     }
  45
  46     cpu = POWERPC_CPU(object_new(TYPE_POWERPC_CPU));
  47     env = &cpu->env;
  48
  49     if (tcg_enabled()) {
  50         ppc_translate_init();
  51     }
  52
  53     env->cpu_model_str = cpu_model;
  54     cpu_ppc_register_internal(env, def);
  55
  56     qemu_init_vcpu(env);
  57
  58     return cpu;
  59 }