Available on x86 only.
Support for protected mode operation.
This includes the minimal support for segmented memory and hardware task management that is required to operate in protected mode with a flat memory model.
- A task state segment (TSS) with fixed redirect and I/O permission maps.
- Stack pointer and segment for a given privilege level
- I/O permission map and interrupt redirect map, which are always located together in a task state segment (TSS).
- Saved task state that makes up the most significant part of a task state segment (TSS).