KeInitializeCatRegisters

INT64 __stdcall KeInitializeCatRegisters(){
  INT64 result; 
  if( KiCacheIsoBitmap )
  {
    if( (KeFeatureBits & 0x100000000000i64) != 0 )
    {
      result = (unsigned int)KiCacheIsoBitmap;
      __writemsr(0xC91u, (unsigned int)KiCacheIsoBitmap);
    }
  }
  return result;
}

Referenced by:

KeInitSystem
KiRestoreFeatureBits