#ifndef _KERNEL_AMD64_GDT_H #define _KERNEL_AMD64_GDT_H #include #include #include #define KSTACK_SIZE (32 * 1024) struct gdt_entry { uint16_t limitlow; uint16_t baselow; uint8_t basemid; uint8_t access; uint8_t gran; uint8_t basehigh; } PACKED; struct gdt_ptr { uint16_t limit; uint64_t base; } PACKED; struct gdt_extended { struct gdt_entry old[5]; struct gdt_entry tsslow; struct gdt_entry tsshigh; } PACKED; #endif // _KERNEL_AMD64_GDT_H