[deliverable/linux.git] / arch / x86 / include / asm / kasan.h

#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__

#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
Commit	Line	Data
ef7f0d6a AR	1	#ifndef _ASM_X86_KASAN_H
	2	#define _ASM_X86_KASAN_H
	3
	4	/*
	5	* Compiler uses shadow offset assuming that addresses start
	6	* from 0. Kernel addresses don't start from 0, so shadow
	7	* for kernel really starts from compiler's shadow offset +
	8	* 'kernel address space start' >> KASAN_SHADOW_SCALE_SHIFT
	9	*/
	10	#define KASAN_SHADOW_START (KASAN_SHADOW_OFFSET + \
	11	(0xffff800000000000ULL >> 3))
	12	/* 47 bits for kernel address -> (47 - 3) bits for shadow */
	13	#define KASAN_SHADOW_END (KASAN_SHADOW_START + (1ULL << (47 - 3)))
	14
	15	#ifndef __ASSEMBLY__
	16
ef7f0d6a	17	#ifdef CONFIG_KASAN
5d5aa3cf	18	void __init kasan_early_init(void);
ef7f0d6a AR	19	void __init kasan_init(void);
ef7f0d6a AR	20	#else
5d5aa3cf	21	static inline void kasan_early_init(void) { }
ef7f0d6a AR	22	static inline void kasan_init(void) { }
	23	#endif
	24
	25	#endif
	26
	27	#endif