diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-10-27 12:38:02 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-27 12:38:02 +0100 |
| commit | 5292ae11babca23c3ff82593630d2d7eebc350a9 (patch) | |
| tree | 30a6c8123b35686098f306ea39398b7621f42054 /arch/x86/include/asm/ldt.h | |
| parent | b0f209898f1a177bd503d49215b8c6628797a81c (diff) | |
| parent | 0173a3265b228da319ceb9c1ec6a5682fd1b2d92 (diff) | |
Merge commit 'v2.6.28-rc2' into x86/uv
Diffstat (limited to 'arch/x86/include/asm/ldt.h')
| -rw-r--r-- | arch/x86/include/asm/ldt.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/x86/include/asm/ldt.h b/arch/x86/include/asm/ldt.h new file mode 100644 index 00000000000..46727eb37bf --- /dev/null +++ b/arch/x86/include/asm/ldt.h @@ -0,0 +1,40 @@ +/* + * ldt.h + * + * Definitions of structures used with the modify_ldt system call. + */ +#ifndef _ASM_X86_LDT_H +#define _ASM_X86_LDT_H + +/* Maximum number of LDT entries supported. */ +#define LDT_ENTRIES 8192 +/* The size of each LDT entry. */ +#define LDT_ENTRY_SIZE 8 + +#ifndef __ASSEMBLY__ +/* + * Note on 64bit base and limit is ignored and you cannot set DS/ES/CS + * not to the default values if you still want to do syscalls. This + * call is more for 32bit mode therefore. + */ +struct user_desc { + unsigned int entry_number; + unsigned int base_addr; + unsigned int limit; + unsigned int seg_32bit:1; + unsigned int contents:2; + unsigned int read_exec_only:1; + unsigned int limit_in_pages:1; + unsigned int seg_not_present:1; + unsigned int useable:1; +#ifdef __x86_64__ + unsigned int lm:1; +#endif +}; + +#define MODIFY_LDT_CONTENTS_DATA 0 +#define MODIFY_LDT_CONTENTS_STACK 1 +#define MODIFY_LDT_CONTENTS_CODE 2 + +#endif /* !__ASSEMBLY__ */ +#endif /* _ASM_X86_LDT_H */ |