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 11static inline int set_memory_ro(unsigned long addr, int numpages) { return 0; } 12static inline int set_memory_rw(unsigned long addr, int numpages) { return 0; } 13static inline int set_memory_x(unsigned long addr, int numpages) { return 0; } 14static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; } 15#endif 16 17#ifndef CONFIG_ARCH_HAS_SET_DIRECT_MAP 18static inline int set_direct_map_invalid_noflush(struct page *page) 19{ 20 return 0; 21} 22static inline int set_direct_map_default_noflush(struct page *page) 23{ 24 return 0; 25} 26#endif 27 28#ifndef set_mce_nospec 29static inline int set_mce_nospec(unsigned long pfn) 30{ 31 return 0; 32} 33#endif 34 35#ifndef clear_mce_nospec 36static inline int clear_mce_nospec(unsigned long pfn) 37{ 38 return 0; 39} 40#endif 41 42#ifndef CONFIG_ARCH_HAS_MEM_ENCRYPT 43static inline int set_memory_encrypted(unsigned long addr, int numpages) 44{ 45 return 0; 46} 47 48static 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_ */ 55