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-rw-r--r--include/asm-x86/ldt_32.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/include/asm-x86/ldt_32.h b/include/asm-x86/ldt_32.h
new file mode 100644
index 000000000000..e9d3de1dee6c
--- /dev/null
+++ b/include/asm-x86/ldt_32.h
@@ -0,0 +1,32 @@
1/*
2 * ldt.h
3 *
4 * Definitions of structures used with the modify_ldt system call.
5 */
6#ifndef _LINUX_LDT_H
7#define _LINUX_LDT_H
8
9/* Maximum number of LDT entries supported. */
10#define LDT_ENTRIES 8192
11/* The size of each LDT entry. */
12#define LDT_ENTRY_SIZE 8
13
14#ifndef __ASSEMBLY__
15struct user_desc {
16 unsigned int entry_number;
17 unsigned long base_addr;
18 unsigned int limit;
19 unsigned int seg_32bit:1;
20 unsigned int contents:2;
21 unsigned int read_exec_only:1;
22 unsigned int limit_in_pages:1;
23 unsigned int seg_not_present:1;
24 unsigned int useable:1;
25};
26
27#define MODIFY_LDT_CONTENTS_DATA 0
28#define MODIFY_LDT_CONTENTS_STACK 1
29#define MODIFY_LDT_CONTENTS_CODE 2
30
31#endif /* !__ASSEMBLY__ */
32#endif