MmShutdownSystem

UINT8 __stdcall MmShutdownSystem(UINT64 Phase){
  void *v1; 
  SECURITY_SUBJECT_CONTEXT *v2; 
  UINT8 *v3; 
  __int64 *v5; 
  __int64 v6; 
  if( !(_DWORD)Phase )
    return MiShutdownSystem();
  if( (_DWORD)Phase == 1 )
  {
    if( (unsigned int)dword_140C4E404 < 2 )
    {
      dword_140C4E404 = 2;
      if( (PopShutdownCleanly & 2) != 0 )
      {
        MmTrimAllSystemPagableMemory(1u, v1, v2, v3);
        if( Count )
        {
          v5 = qword_140C525E0;
          v6 = Count;
          do
          {
            if( (*(_WORD *)(*v5 + 204) & 0x840) == 0 )
              HalPutDmaAdapter(*(PADAPTER_OBJECT *)(*v5 + 56));
            ++v5;
            --v6;
          }
          while( v6 );
        }
      }
    }
  }
  else if( (unsigned int)dword_140C4E404 < 3 )
  {
    dword_140C4E404 = 3;
  }
  return 1;
}

Referenced by:

PoBroadcastSystemState
PopGracefulShutdown