mirror of
https://github.com/torvalds/linux.git
synced 2024-12-20 01:52:13 +00:00
32 lines
866 B
C
32 lines
866 B
C
|
#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
|