descriptor_idt Struct Reference

idt table descriptor More...

#include <descriptor.h>

Public Attributes
uint16_t	offset_1
	offset bits 0..15 of where interrupt function reside
uint16_t	selector
	a code segment selector in GDT or LDT
uint8_t	ist: 3
	bits 0..2 holds Interrupt Stack Table offset, rest of bits zero.
uint8_t	always0_1: 5
	ignore, always 0
uint8_t	type: 4
	interrupt type type it should be 0xE
uint8_t	always0_2: 1
	ignore, always 0
uint8_t	dpl: 2
	privilage level of interrupt
uint8_t	present: 1
	interrupt present?
uint16_t	offset_2
	offset bits 16..31 of where interrupt function reside
uint32_t	offset_3
	offset bits 32..63 of where interrupt function reside
uint32_t	zero
	reserved, always zero

Detailed Description

idt table descriptor

each table member has this struct format for interrupt function

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

• includes/cpu/descriptor.h