An entry in the GDT. More...

#include <gdt.h>

Data Fields
uint16_t	limit0_15: 16
	maximum offset allowed (byte 1-2)

uint32_t	base0_23: 24
	where the segment begins (byte 1-3)

uint8_t	ac: 1
	accessed

uint8_t	rw: 1
	read / write allowed

uint8_t	dc: 1
	direction / conforming

uint8_t	ex: 1
	executable

uint8_t	dt: 1
	descriptor type

uint8_t	dpl: 2
	Descriptor privilege level. More...

uint8_t	pr: 1
	present

uint8_t	limit16_19: 4
	maximum offset allowed (last nibble)

uint8_t	reserved: 2
	always 0 (long mode & available)

uint8_t	sz: 1
	size

uint8_t	gr: 1
	granularity

uint8_t	base24_31: 8
	where the segment begins (byte 4)

Detailed Description

An entry in the GDT.

This corresponds directly to a memory segment or TSS.

Definition at line 20 of file gdt.h.

Field Documentation

uint8_t gdt_entry_t::dpl

Descriptor privilege level.

Whereas CPL is the current privilege level and RPL the requested privilege level.

Definition at line 28 of file gdt.h.

The documentation for this struct was generated from the following file: