aboutsummaryrefslogtreecommitdiffstats
path: root/arch/xtensa/include/asm/kasan.h
blob: 216b6f32c37596c2b6368a24dfc906fcd9959d73 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_KASAN_H
#define __ASM_KASAN_H

#ifndef __ASSEMBLY__

#ifdef CONFIG_KASAN

#include <linux/kernel.h>
#include <linux/sizes.h>
#include <asm/kmem_layout.h>

#define KASAN_SHADOW_SCALE_SHIFT 3

/* Start of area covered by KASAN */
#define KASAN_START_VADDR __XTENSA_UL_CONST(0x90000000)
/* Start of the shadow map */
#define KASAN_SHADOW_START (XCHAL_PAGE_TABLE_VADDR + XCHAL_PAGE_TABLE_SIZE)
/* Size of the shadow map */
#define KASAN_SHADOW_SIZE (-KASAN_START_VADDR >> KASAN_SHADOW_SCALE_SHIFT)
/* Offset for mem to shadow address transformation */
#define KASAN_SHADOW_OFFSET __XTENSA_UL_CONST(CONFIG_KASAN_SHADOW_OFFSET)

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

Privacy Policy