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- #ifndef _ASM_X86_SEGMENT_H_
- #define _ASM_X86_SEGMENT_H_
- #ifdef CONFIG_X86_32
- # include "segment_32.h"
- #else
- # include "segment_64.h"
- #endif
- #ifndef CONFIG_PARAVIRT
- #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 GDT_SIZE (GDT_ENTRIES * 8)
- #define GDT_ENTRY_TLS_ENTRIES 3
- #define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8)
- #endif
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