#ifndef _ASM_X86_KASAN_H #define _ASM_X86_KASAN_H #include <linux/const.h> #define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL) /* * Compiler uses shadow offset assuming that addresses start * from 0. Kernel addresses don't start from 0, so shadow * for kernel really starts from compiler's shadow offset + * 'kernel address space start' >> KASAN_SHADOW_SCALE_SHIFT */ #define KASAN_SHADOW_START (KASAN_SHADOW_OFFSET + \ (0xffff800000000000ULL >> 3)) /* 47 bits for kernel address -> (47 - 3) bits for shadow */ #define KASAN_SHADOW_END (KASAN_SHADOW_START + (1ULL << (47 - 3))) #ifndef __ASSEMBLY__ #ifdef CONFIG_KASAN void __init kasan_early_init(void); void __init kasan_init(void); #else static inline void kasan_early_init(void) { } static inline void kasan_init(void) { } #endif #endif #endif