kaguya
336af1c2ad
We have reorganized all the file directories that previously looked ugly as hell (cough cough arch/x86_64 cough) Now it looks much cleaner Signed-off-by: kaguya <vpshinomiya@protonmail.com>
36 lines
662 B
C
36 lines
662 B
C
#pragma once
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
|
|
|
|
|
|
#define GDT_KERNEL_BASE 0x0
|
|
#define GDT_KERNEL_CODE64 0x8
|
|
#define GDT_KERNEL_DATA64 0x10
|
|
#define GDT_USER_BASE 0x18
|
|
#define GDT_USER_DATA64 0x18
|
|
#define GDT_USER_CODE64 0x20
|
|
#define GDT_TSS 0x28
|
|
|
|
struct tss {
|
|
uint32_t reserved;
|
|
uint64_t rsp0;
|
|
uint64_t rsp1;
|
|
uint64_t rsp2;
|
|
uint64_t reserved2;
|
|
uint64_t ist1;
|
|
uint64_t ist2;
|
|
uint64_t ist3;
|
|
uint64_t ist4;
|
|
uint64_t ist5;
|
|
uint64_t ist6;
|
|
uint64_t ist7;
|
|
uint64_t reserved3;
|
|
uint16_t reserved4;
|
|
uint16_t iomap_base;
|
|
} __attribute__((packed));
|
|
|
|
extern struct tss kernel_tss;
|
|
|
|
void x86_64_GDT_Initialize(void);
|
|
void gdt_load_tss(size_t addr); |