NTSTATUS KeI386FlatToGdtSelector( IN ULONG SelectorBase, IN USHORT Length, IN USHORT Selector ); Routine Description: This function converts a 32-bit flat address to a GDT selector-offset pair. The segment set up is always 16-bit ring 0 data segment. Arguments: SelectorBase - Supplies 32 bit flat address to be set as the base address of the desired selector. Length - Supplies the Length of the segment. The Length is a 16 bit value and zero means 64KB. Selector - Supplies the selector to be set up. Return Value: STATUS_SUCCESS - If the requested LID is released. STATUS_ABIOS_NOT_PRESENT - If there is no ABIOS support in the system. STATUS_ABIOS_INVALID_SELECTOR - If the selector supplied is invalid.