diff options
| author | H. Peter Anvin <hpa@zytor.com> | 2007-07-11 15:18:37 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-12 13:55:54 -0400 |
| commit | 8afd2af88921c2cb1c9540cecd0714da7ae4fcd0 (patch) | |
| tree | 162a4de59d8dab371f5568bf37ea7de7af59115f /include/asm-x86_64 | |
| parent | 77e1dd654bc24182a7ad34f415abd488ae7af6eb (diff) | |
x86-64: add symbolic constants for the boot segment selectors
Add symbolic constants for the segment selectors/GDT slots used by
the setup code, for consistency with i386.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-x86_64')
| -rw-r--r-- | include/asm-x86_64/segment.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-x86_64/segment.h b/include/asm-x86_64/segment.h index adf2bf1e187c..04b8ab21328f 100644 --- a/include/asm-x86_64/segment.h +++ b/include/asm-x86_64/segment.h | |||
| @@ -3,6 +3,14 @@ | |||
| 3 | 3 | ||
| 4 | #include <asm/cache.h> | 4 | #include <asm/cache.h> |
| 5 | 5 | ||
| 6 | /* Simple and small GDT entries for booting only */ | ||
| 7 | |||
| 8 | #define GDT_ENTRY_BOOT_CS 2 | ||
| 9 | #define __BOOT_CS (GDT_ENTRY_BOOT_CS * 8) | ||
| 10 | |||
| 11 | #define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1) | ||
| 12 | #define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8) | ||
| 13 | |||
| 6 | #define __KERNEL_CS 0x10 | 14 | #define __KERNEL_CS 0x10 |
| 7 | #define __KERNEL_DS 0x18 | 15 | #define __KERNEL_DS 0x18 |
| 8 | 16 | ||