1 /* 2 * Copyright 2017, Michael Ellerman, IBM Corporation. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License version 6 * 2 as published by the Free Software Foundation; 7 */ 8 #ifndef _LINUX_SET_MEMORY_H_ 9 #define _LINUX_SET_MEMORY_H_ 10 11 #ifdef CONFIG_ARCH_HAS_SET_MEMORY 12 #include <asm/set_memory.h> 13 #else 14 static inline int set_memory_ro(unsigned long addr, int numpages) { return 0; } 15 static inline int set_memory_rw(unsigned long addr, int numpages) { return 0; } 16 static inline int set_memory_x(unsigned long addr, int numpages) { return 0; } 17 static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; } 18 #endif 19 20 #ifndef set_mce_nospec 21 static inline int set_mce_nospec(unsigned long pfn) 22 { 23 return 0; 24 } 25 #endif 26 27 #ifndef clear_mce_nospec 28 static inline int clear_mce_nospec(unsigned long pfn) 29 { 30 return 0; 31 } 32 #endif 33 34 #ifndef CONFIG_ARCH_HAS_MEM_ENCRYPT 35 static inline int set_memory_encrypted(unsigned long addr, int numpages) 36 { 37 return 0; 38 } 39 40 static inline int set_memory_decrypted(unsigned long addr, int numpages) 41 { 42 return 0; 43 } 44 #endif /* CONFIG_ARCH_HAS_MEM_ENCRYPT */ 45 46 #endif /* _LINUX_SET_MEMORY_H_ */ 47