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