1#ifndef __ASM_HOST_LDT_X86_64_H 2#define __ASM_HOST_LDT_X86_64_H 3 4#include "asm/arch/ldt.h" 5 6/* 7 * macros stolen from include/asm-x86_64/desc.h 8 */ 9#define LDT_entry_a(info) \ 10 ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff)) 11 12/* Don't allow setting of the lm bit. It is useless anyways because 13 * 64bit system calls require __USER_CS. */ 14#define LDT_entry_b(info) \ 15 (((info)->base_addr & 0xff000000) | \ 16 (((info)->base_addr & 0x00ff0000) >> 16) | \ 17 ((info)->limit & 0xf0000) | \ 18 (((info)->read_exec_only ^ 1) << 9) | \ 19 ((info)->contents << 10) | \ 20 (((info)->seg_not_present ^ 1) << 15) | \ 21 ((info)->seg_32bit << 22) | \ 22 ((info)->limit_in_pages << 23) | \ 23 ((info)->useable << 20) | \ 24 /* ((info)->lm << 21) | */ \ 25 0x7000) 26 27#define LDT_empty(info) (\ 28 (info)->base_addr == 0 && \ 29 (info)->limit == 0 && \ 30 (info)->contents == 0 && \ 31 (info)->read_exec_only == 1 && \ 32 (info)->seg_32bit == 0 && \ 33 (info)->limit_in_pages == 0 && \ 34 (info)->seg_not_present == 1 && \ 35 (info)->useable == 0 && \ 36 (info)->lm == 0) 37 38#endif 39