ZwInitiatePowerAction

NTSTATUS __stdcall ZwInitiatePowerAction(
        POWER_ACTION SystemAction,
        _SYSTEM_POWER_STATE LightestSystemState,
        UINT64 Flags,
        UINT8 Asynchronous){
  NTSTATUS result; 

  _disable();
  __readeflags();
  KiServiceInternal();
  return result;
}

Referenced by:

PoShutdownBugCheck