gdt.c File Reference

#include <miniOS/arch/x86_64/gdt.h>
#include <miniOS/arch/x86_64/segment.h>
#include <miniOS/arch/x86_64/tss.h>
#include <string.h>

Include dependency graph for gdt.c:

Functions
void	gdt64_load (void *gdt_desc, uint16_t cs, uint16_t ds)
void	gdt_init ()
void	tss_set_rsp0 (uint64_t rsp0)

Variables
void *	interrupt_stack_top
struct tss_struct	tss
struct segment_descriptor	GDT []

Function Documentation

gdt64_load()

void gdt64_load	(	void *	gdt_desc,
		uint16_t	cs,
		uint16_t	ds )

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gdt_init()

void gdt_init

(

)

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tss_set_rsp0()

void tss_set_rsp0

(

uint64_t

rsp0

)

Variable Documentation

GDT

struct segment_descriptor GDT[]

Initial value:

                         = {
    
    { 0, },
 
    
    BUILD_4KB_SEG_DESC(0, 0x000FFFFF, GDT_CS_TYPE, 1, 0),
 
    
    BUILD_4KB_SEG_DESC(0, 0x000FFFFF, GDT_DS_TYPE, 0, 1),
 
    
    BUILD_4KB_SEG_DESC(0, 0x000FFFFF, USER_DS_TYPE, 0, 1),
 
    
    BUILD_4KB_SEG_DESC(0, 0x000FFFFF, USER_CS_TYPE, 1, 0),
 
    
    { 0, },
 
    
    { 0, }
}

interrupt_stack_top

void* interrupt_stack_top

extern

tss

struct tss_struct tss