func: void qemu_run_all_timers(void)
  
  {
  
      alarm_timer->pending = 0;
  
  
  
      /* rearm timer, if not periodic */
  
      if (alarm_timer->expired) {
  
          alarm_timer->expired = 0;
  
          qemu_rearm_alarm_timer(alarm_timer);
  
      }
  
  
  
      /* vm time timers */
  
      qemu_run_timers(vm_clock);
  
      qemu_run_timers(rt_clock);
  
      qemu_run_timers(host_clock);
  
  }
  