stos/amd64: Add GDT header

Signed-off-by: Chloe M. <chloe@mensia.org>
2026-06-23 19:00:14 +00:00
parent 3671c32532
commit 27af606ba2
1 changed files with 27 additions and 0 deletions
@@ -0,0 +1,27 @@
 /*
 * Copyright (c) 2026, Chloe M.
 * Provided under the BSD-3 clause.
 *
 * Description: Global descriptor table
 * Author:      Chloe M.
 */
 #ifndef _MACHINE_GDT_H_
 #define _MACHINE_GDT_H_ 1
 /* Number of GDT entries */
 #define GDT_ENTRY_COUNT 7
 /* Kernel code/data */
 #define GDT_KCODE  0x08
 #define GDT_KDATA  0x10
 /* User code/data */
 #define GDT_UCODE  0x18
 #define GDT_UDATA  0x20
 /* Task state segment */
 #define GDT_TSS    0x28
 #define GDT_TSS_INDEX 0x05
 #endif  /* !_MACHINE_GDT_H_ */