target-s390x/exec.h

   1 /*
   2  *  S/390 execution defines
   3  *
   4  *  Copyright (c) 2009 Ulrich Hecht
   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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA  02110-1301 USA
  19  */
  20
  21 #include "dyngen-exec.h"
  22
  23 register struct CPUS390XState *env asm(AREG0);
  24
  25 #include "config.h"
  26 #include "cpu.h"
  27 #include "exec-all.h"
  28
  29 #if !defined(CONFIG_USER_ONLY)
  30 #include "softmmu_exec.h"
  31 #endif /* !defined(CONFIG_USER_ONLY) */
  32
  33 static inline int cpu_has_work(CPUState *env)
  34 {
  35     return env->interrupt_request & CPU_INTERRUPT_HARD; // guess
  36 }
  37
  38 static inline void regs_to_env(void)
  39 {
  40 }
  41
  42 static inline void env_to_regs(void)
  43 {
  44 }
  45
  46 static inline int cpu_halted(CPUState *env)
  47 {
  48     if (!env->halted) {
  49        return 0;
  50     }
  51     if (cpu_has_work(env)) {
  52         env->halted = 0;
  53         return 0;
  54     }
  55     return EXCP_HALTED;
  56 }