arch/arm64/include/asm/kfence.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * arm64 KFENCE support.
   4  *
   5  * Copyright (C) 2020, Google LLC.
   6  */
   7
   8 #ifndef __ASM_KFENCE_H
   9 #define __ASM_KFENCE_H
  10
  11 #include <asm/cacheflush.h>
  12
  13 #define KFENCE_SKIP_ARCH_FAULT_HANDLER "el1_sync"
  14
  15 static inline bool arch_kfence_init_pool(void) { return true; }
  16
  17 static inline bool kfence_protect_page(unsigned long addr, bool protect)
  18 {
  19         set_memory_valid(addr, 1, !protect);
  20
  21         return true;
  22 }
  23
  24 #endif /* __ASM_KFENCE_H */