cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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kasan.h (1118B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _ASM_X86_KASAN_H
      3#define _ASM_X86_KASAN_H
      4
      5#include <linux/const.h>
      6#define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL)
      7#define KASAN_SHADOW_SCALE_SHIFT 3
      8
      9/*
     10 * Compiler uses shadow offset assuming that addresses start
     11 * from 0. Kernel addresses don't start from 0, so shadow
     12 * for kernel really starts from compiler's shadow offset +
     13 * 'kernel address space start' >> KASAN_SHADOW_SCALE_SHIFT
     14 */
     15#define KASAN_SHADOW_START      (KASAN_SHADOW_OFFSET + \
     16					((-1UL << __VIRTUAL_MASK_SHIFT) >> \
     17						KASAN_SHADOW_SCALE_SHIFT))
     18/*
     19 * 47 bits for kernel address -> (47 - KASAN_SHADOW_SCALE_SHIFT) bits for shadow
     20 * 56 bits for kernel address -> (56 - KASAN_SHADOW_SCALE_SHIFT) bits for shadow
     21 */
     22#define KASAN_SHADOW_END        (KASAN_SHADOW_START + \
     23					(1ULL << (__VIRTUAL_MASK_SHIFT - \
     24						  KASAN_SHADOW_SCALE_SHIFT)))
     25
     26#ifndef __ASSEMBLY__
     27
     28#ifdef CONFIG_KASAN
     29void __init kasan_early_init(void);
     30void __init kasan_init(void);
     31#else
     32static inline void kasan_early_init(void) { }
     33static inline void kasan_init(void) { }
     34#endif
     35
     36#endif
     37
     38#endif