include/asm-x86/bios_ebda.h

   1 #ifndef _MACH_BIOS_EBDA_H
   2 #define _MACH_BIOS_EBDA_H
   3
   4 /*
   5  * there is a real-mode segmented pointer pointing to the
   6  * 4K EBDA area at 0x40E.
   7  */
   8 static inline unsigned int get_bios_ebda(void)
   9 {
  10         unsigned int address = *(unsigned short *)phys_to_virt(0x40E);
  11         address <<= 4;
  12         return address; /* 0 means none */
  13 }
  14
  15 #endif /* _MACH_BIOS_EBDA_H */