/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_UM_KASAN_H #define __ASM_UM_KASAN_H #include <linux/init.h> #include <linux/const.h> #define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL) /* used in kasan_mem_to_shadow to divide by 8 */ #define KASAN_SHADOW_SCALE_SHIFT 3 #ifdef CONFIG_X86_64 #define KASAN_HOST_USER_SPACE_END_ADDR 0x00007fffffffffffUL /* KASAN_SHADOW_SIZE is the size of total address space divided by 8 */ #define KASAN_SHADOW_SIZE ((KASAN_HOST_USER_SPACE_END_ADDR + 1) >> \ KASAN_SHADOW_SCALE_SHIFT) #else #error "KASAN_SHADOW_SIZE is not defined for this sub-architecture" #endif /* CONFIG_X86_64 */ #define KASAN_SHADOW_START (KASAN_SHADOW_OFFSET) #define KASAN_SHADOW_END (KASAN_SHADOW_START + KASAN_SHADOW_SIZE) #ifdef CONFIG_KASAN void kasan_init(void); extern int kasan_um_is_ready; #ifdef CONFIG_STATIC_LINK #define kasan_arch_is_ready() (kasan_um_is_ready) #endif #else static inline void kasan_init(void) { } #endif /* CONFIG_KASAN */ #endif /* __ASM_UM_KASAN_H */