| #ifndef _ASM_X86_KASAN_H |
| #define _ASM_X86_KASAN_H |
| |
| /* |
| * 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__ |
| |
| extern pte_t kasan_zero_pte[]; |
| extern pte_t kasan_zero_pmd[]; |
| extern pte_t kasan_zero_pud[]; |
| |
| #ifdef CONFIG_KASAN |
| void __init kasan_map_early_shadow(pgd_t *pgd); |
| void __init kasan_init(void); |
| #else |
| static inline void kasan_map_early_shadow(pgd_t *pgd) { } |
| static inline void kasan_init(void) { } |
| #endif |
| |
| #endif |
| |
| #endif |
