1#ifndef _ASM_X86_BIOS_EBDA_H 2#define _ASM_X86_BIOS_EBDA_H 3 4#include <asm/io.h> 5 6/* 7 * there is a real-mode segmented pointer pointing to the 8 * 4K EBDA area at 0x40E. 9 */ 10static inline unsigned int get_bios_ebda(void) 11{ 12 unsigned int address = *(unsigned short *)phys_to_virt(0x40E); 13 address <<= 4; 14 return address; /* 0 means none */ 15} 16 17void reserve_ebda_region(void); 18 19#ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION 20/* 21 * This is obviously not a great place for this, but we want to be 22 * able to scatter it around anywhere in the kernel. 23 */ 24void check_for_bios_corruption(void); 25void start_periodic_check_for_corruption(void); 26#else 27static inline void check_for_bios_corruption(void) 28{ 29} 30 31static inline void start_periodic_check_for_corruption(void) 32{ 33} 34#endif 35 36#endif /* _ASM_X86_BIOS_EBDA_H */ 37