diff options
Diffstat (limited to 'arch/x86/include/asm/segment.h')
| -rw-r--r-- | arch/x86/include/asm/segment.h | 30 |
1 files changed, 9 insertions, 21 deletions
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h index 6f1c3a8a33ab..db257a58571f 100644 --- a/arch/x86/include/asm/segment.h +++ b/arch/x86/include/asm/segment.h @@ -23,6 +23,15 @@ #define GDT_ENTRY_BOOT_TSS (GDT_ENTRY_BOOT_CS + 2) #define __BOOT_TSS (GDT_ENTRY_BOOT_TSS * 8) +#define SEGMENT_RPL_MASK 0x3 /* + * Bottom two bits of selector give the ring + * privilege level + */ +#define SEGMENT_TI_MASK 0x4 /* Bit 2 is table indicator (LDT/GDT) */ +#define USER_RPL 0x3 /* User mode is privilege level 3 */ +#define SEGMENT_LDT 0x4 /* LDT segment has TI set... */ +#define SEGMENT_GDT 0x0 /* ... GDT has it cleared */ + #ifdef CONFIG_X86_32 /* * The layout of the per-CPU GDT under Linux: @@ -125,16 +134,6 @@ #define PNP_TS1 (GDT_ENTRY_PNPBIOS_TS1 * 8) /* transfer data segment */ #define PNP_TS2 (GDT_ENTRY_PNPBIOS_TS2 * 8) /* another data segment */ -/* Bottom two bits of selector give the ring privilege level */ -#define SEGMENT_RPL_MASK 0x3 -/* Bit 2 is table indicator (LDT/GDT) */ -#define SEGMENT_TI_MASK 0x4 - -/* User mode is privilege level 3 */ -#define USER_RPL 0x3 -/* LDT segment has TI set, GDT has it cleared */ -#define SEGMENT_LDT 0x4 -#define SEGMENT_GDT 0x0 /* * Matching rules for certain types of segments. @@ -192,17 +191,6 @@ #define get_kernel_rpl() 0 #endif -/* User mode is privilege level 3 */ -#define USER_RPL 0x3 -/* LDT segment has TI set, GDT has it cleared */ -#define SEGMENT_LDT 0x4 -#define SEGMENT_GDT 0x0 - -/* Bottom two bits of selector give the ring privilege level */ -#define SEGMENT_RPL_MASK 0x3 -/* Bit 2 is table indicator (LDT/GDT) */ -#define SEGMENT_TI_MASK 0x4 - #define IDT_ENTRIES 256 #define NUM_EXCEPTION_VECTORS 32 /* Bitmask of exception vectors which push an error code on the stack */ |