LXR linux/arch/x86/include/asm/kasan.h

   1#ifndef _ASM_X86_KASAN_H
   2#define _ASM_X86_KASAN_H
   3
   4#include <linux/const.h>
   5#define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL)
   6
   7/*
   8 * Compiler uses shadow offset assuming that addresses start
   9 * from 0. Kernel addresses don't start from 0, so shadow
  10 * for kernel really starts from compiler's shadow offset +
  11 * 'kernel address space start' >> KASAN_SHADOW_SCALE_SHIFT
  12 */
  13#define KASAN_SHADOW_START      (KASAN_SHADOW_OFFSET + \
  14                                        (0xffff800000000000ULL >> 3))
  15/* 47 bits for kernel address -> (47 - 3) bits for shadow */
  16#define KASAN_SHADOW_END        (KASAN_SHADOW_START + (1ULL << (47 - 3)))
  17
  18#ifndef __ASSEMBLY__
  19
  20#ifdef CONFIG_KASAN
  21void __init kasan_early_init(void);
  22void __init kasan_init(void);
  23#else
  24static inline void kasan_early_init(void) { }
  25static inline void kasan_init(void) { }
  26#endif
  27
  28#endif
  29
  30#endif
  31