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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "dyngen-exec.h"
  21
  22 register struct CPUS390XState *env asm(AREG0);
  23
  24 #include "config.h"
  25 #include "cpu.h"
  26 #include "exec-all.h"
  27
  28 #if !defined(CONFIG_USER_ONLY)
  29 #include "softmmu_exec.h"
  30 #endif /* !defined(CONFIG_USER_ONLY) */
  31
  32 static inline int cpu_has_work(CPUState *env)
  33 {
  34     return env->interrupt_request & CPU_INTERRUPT_HARD; // guess
  35 }
  36
  37 static inline int cpu_halted(CPUState *env)
  38 {
  39     if (!env->halted) {
  40        return 0;
  41     }
  42     if (cpu_has_work(env)) {
  43         env->halted = 0;
  44         return 0;
  45     }
  46     return EXCP_HALTED;
  47 }