xref: /OK3568_Linux_fs/kernel/arch/xtensa/include/asm/kasan.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __ASM_KASAN_H
3*4882a593Smuzhiyun #define __ASM_KASAN_H
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun #ifndef __ASSEMBLY__
6*4882a593Smuzhiyun 
7*4882a593Smuzhiyun #ifdef CONFIG_KASAN
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun #include <linux/kernel.h>
10*4882a593Smuzhiyun #include <linux/sizes.h>
11*4882a593Smuzhiyun #include <asm/kmem_layout.h>
12*4882a593Smuzhiyun 
13*4882a593Smuzhiyun #define KASAN_SHADOW_SCALE_SHIFT 3
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun /* Start of area covered by KASAN */
16*4882a593Smuzhiyun #define KASAN_START_VADDR __XTENSA_UL_CONST(0x90000000)
17*4882a593Smuzhiyun /* Start of the shadow map */
18*4882a593Smuzhiyun #define KASAN_SHADOW_START (XCHAL_PAGE_TABLE_VADDR + XCHAL_PAGE_TABLE_SIZE)
19*4882a593Smuzhiyun /* Size of the shadow map */
20*4882a593Smuzhiyun #define KASAN_SHADOW_SIZE (-KASAN_START_VADDR >> KASAN_SHADOW_SCALE_SHIFT)
21*4882a593Smuzhiyun /* Offset for mem to shadow address transformation */
22*4882a593Smuzhiyun #define KASAN_SHADOW_OFFSET __XTENSA_UL_CONST(CONFIG_KASAN_SHADOW_OFFSET)
23*4882a593Smuzhiyun 
24*4882a593Smuzhiyun void __init kasan_early_init(void);
25*4882a593Smuzhiyun void __init kasan_init(void);
26*4882a593Smuzhiyun 
27*4882a593Smuzhiyun #else
28*4882a593Smuzhiyun 
kasan_early_init(void)29*4882a593Smuzhiyun static inline void kasan_early_init(void)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun }
32*4882a593Smuzhiyun 
kasan_init(void)33*4882a593Smuzhiyun static inline void kasan_init(void)
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun 
37*4882a593Smuzhiyun #endif
38*4882a593Smuzhiyun #endif
39*4882a593Smuzhiyun #endif
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