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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
09e129a6 AV |
2 | #ifndef _SYSDEP_TLS_H |
3 | #define _SYSDEP_TLS_H | |
4 | ||
298e20ba | 5 | #ifdef __UM_HOST__ |
09e129a6 AV |
6 | |
7 | /* Change name to avoid conflicts with the original one from <asm/ldt.h>, which | |
8 | * may be named user_desc (but in 2.4 and in header matching its API was named | |
9 | * modify_ldt_ldt_s). */ | |
10 | ||
11 | typedef struct um_dup_user_desc { | |
12 | unsigned int entry_number; | |
13 | unsigned int base_addr; | |
14 | unsigned int limit; | |
15 | unsigned int seg_32bit:1; | |
16 | unsigned int contents:2; | |
17 | unsigned int read_exec_only:1; | |
18 | unsigned int limit_in_pages:1; | |
19 | unsigned int seg_not_present:1; | |
20 | unsigned int useable:1; | |
21 | #ifdef __x86_64__ | |
22 | unsigned int lm:1; | |
23 | #endif | |
24 | } user_desc_t; | |
25 | ||
298e20ba | 26 | #else /* __UM_HOST__ */ |
09e129a6 | 27 | |
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28 | typedef struct user_desc user_desc_t; |
29 | ||
298e20ba | 30 | #endif /* __UM_HOST__ */ |
09e129a6 | 31 | |
1bbd5f21 AV |
32 | extern int os_set_thread_area(user_desc_t *info, int pid); |
33 | extern int os_get_thread_area(user_desc_t *info, int pid); | |
34 | ||
858ba944 | 35 | #ifdef __i386__ |
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36 | #define GDT_ENTRY_TLS_MIN_I386 6 |
37 | #define GDT_ENTRY_TLS_MIN_X86_64 12 | |
858ba944 | 38 | #endif |
09e129a6 AV |
39 | |
40 | #endif /* _SYSDEP_TLS_H */ |