MiCheckPhysicalAddressRange

NTSTATUS __stdcall MiCheckPhysicalAddressRange(_LARGE_INTEGER PhysicalAddress, UINT64 NumberOfBytes){
  UINT64 v2; 
  NTSTATUS result; 

  if( PhysicalAddress.QuadPart + NumberOfBytes <= PhysicalAddress.QuadPart )
    return 0;
  v2 = PhysicalAddress.QuadPart + NumberOfBytes - 1;
  if( KiMtrrMaskBase )
  {
    if( (v2 & 0xFFFFFFFFFFFFF000ui64) > KiMtrrMaskBase )
      return 0;
  }
  result = 1;
  if( KeGetCurrentPrcb()->CpuVendor == 1 && v2 >= 0xFD00000000i64 && PhysicalAddress.QuadPart <= 0xFFFFFFFFFFui64 )
    return 0;
  return result;
}

Referenced by: