diff options
Diffstat (limited to 'arch/arm64/include/asm/kasan.h')
| -rw-r--r-- | arch/arm64/include/asm/kasan.h | 31 |
1 files changed, 8 insertions, 23 deletions
diff --git a/arch/arm64/include/asm/kasan.h b/arch/arm64/include/asm/kasan.h index 71ad0f93eb71..b167e9d3da91 100644 --- a/arch/arm64/include/asm/kasan.h +++ b/arch/arm64/include/asm/kasan.h @@ -1,40 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_KASAN_H #define __ASM_KASAN_H -#ifndef __ASSEMBLY__ - -#ifdef CONFIG_KASAN +#ifndef __ASSEMBLER__ #include <linux/linkage.h> #include <asm/memory.h> +#include <asm/mte-kasan.h> #include <asm/pgtable-types.h> -/* - * KASAN_SHADOW_START: beginning of the kernel virtual addresses. - * KASAN_SHADOW_END: KASAN_SHADOW_START + 1/8 of kernel virtual addresses. - */ -#define KASAN_SHADOW_START (VA_START) -#define KASAN_SHADOW_END (KASAN_SHADOW_START + KASAN_SHADOW_SIZE) +#define arch_kasan_set_tag(addr, tag) __tag_set(addr, tag) +#define arch_kasan_reset_tag(addr) __tag_reset(addr) +#define arch_kasan_get_tag(addr) __tag_get(addr) -/* - * This value is used to map an address to the corresponding shadow - * address by the following formula: - * shadow_addr = (address >> 3) + KASAN_SHADOW_OFFSET; - * - * (1 << 61) shadow addresses - [KASAN_SHADOW_OFFSET,KASAN_SHADOW_END] - * cover all 64-bits of virtual addresses. So KASAN_SHADOW_OFFSET - * should satisfy the following equation: - * KASAN_SHADOW_OFFSET = KASAN_SHADOW_END - (1ULL << 61) - */ -#define KASAN_SHADOW_OFFSET (KASAN_SHADOW_END - (1ULL << (64 - 3))) +#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) -void kasan_init(void); -void kasan_copy_shadow(pgd_t *pgdir); asmlinkage void kasan_early_init(void); +void kasan_init(void); #else static inline void kasan_init(void) { } -static inline void kasan_copy_shadow(pgd_t *pgdir) { } #endif #endif |