include/linux/set_memory.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright 2017, Michael Ellerman, IBM Corporation.
   4  */
   5 #ifndef _LINUX_SET_MEMORY_H_
   6 #define _LINUX_SET_MEMORY_H_
   7
   8 #ifdef CONFIG_ARCH_HAS_SET_MEMORY
   9 #include <asm/set_memory.h>
  10 #else
  11 static inline int set_memory_ro(unsigned long addr, int numpages) { return 0; }
  12 static inline int set_memory_rw(unsigned long addr, int numpages) { return 0; }
  13 static inline int set_memory_x(unsigned long addr,  int numpages) { return 0; }
  14 static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; }
  15 #endif
  16
  17 #ifndef CONFIG_ARCH_HAS_SET_DIRECT_MAP
  18 static inline int set_direct_map_invalid_noflush(struct page *page)
  19 {
  20         return 0;
  21 }
  22 static inline int set_direct_map_default_noflush(struct page *page)
  23 {
  24         return 0;
  25 }
  26 #endif
  27
  28 #ifndef set_mce_nospec
  29 static inline int set_mce_nospec(unsigned long pfn)
  30 {
  31         return 0;
  32 }
  33 #endif
  34
  35 #ifndef clear_mce_nospec
  36 static inline int clear_mce_nospec(unsigned long pfn)
  37 {
  38         return 0;
  39 }
  40 #endif
  41
  42 #ifndef CONFIG_ARCH_HAS_MEM_ENCRYPT
  43 static inline int set_memory_encrypted(unsigned long addr, int numpages)
  44 {
  45         return 0;
  46 }
  47
  48 static inline int set_memory_decrypted(unsigned long addr, int numpages)
  49 {
  50         return 0;
  51 }
  52 #endif /* CONFIG_ARCH_HAS_MEM_ENCRYPT */
  53
  54 #endif /* _LINUX_SET_MEMORY_H_ */