arch/all-pc/kernel/segments.h

   1 #ifndef KERNEL_SEGMENTS_H
   2 #define KERNEL_SEGMENTS_H
   3 /*
   4  * Standard values for x86 segment registers.
   5  * This file can be included from both C and assembler sources.
   6  */
   7
   8 #define KERNEL_CS 0x08
   9 #define KERNEL_DS 0x10
  10
  11 #if (__WORDSIZE==64)
  12 # define USER_CS32 0x1b
  13 # define USER_CS   0x2b
  14 #else
  15 # define USER_CS   0x1b
  16 #endif
  17 #define USER_DS   0x23
  18 #define USER_GS   0x30
  19 #define SEG_LDT   0x38
  20 #define TASK_SEG  0x40
  21
  22 #endif /* !KERNEL_SEGMENTS_H */