2019-06-04 16:11:33 +08:00
|
|
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
2017-07-07 06:35:52 +08:00
|
|
|
/*
|
|
|
|
* Copyright 2017, Michael Ellerman, IBM Corporation.
|
|
|
|
*/
|
|
|
|
#ifndef _LINUX_SET_MEMORY_H_
|
|
|
|
#define _LINUX_SET_MEMORY_H_
|
|
|
|
|
|
|
|
#ifdef CONFIG_ARCH_HAS_SET_MEMORY
|
|
|
|
#include <asm/set_memory.h>
|
|
|
|
#else
|
|
|
|
static inline int set_memory_ro(unsigned long addr, int numpages) { return 0; }
|
|
|
|
static inline int set_memory_rw(unsigned long addr, int numpages) { return 0; }
|
|
|
|
static inline int set_memory_x(unsigned long addr, int numpages) { return 0; }
|
|
|
|
static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; }
|
|
|
|
#endif
|
|
|
|
|
2019-04-26 08:11:34 +08:00
|
|
|
#ifndef CONFIG_ARCH_HAS_SET_DIRECT_MAP
|
|
|
|
static inline int set_direct_map_invalid_noflush(struct page *page)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
static inline int set_direct_map_default_noflush(struct page *page)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
2020-12-15 11:10:35 +08:00
|
|
|
|
|
|
|
static inline bool kernel_page_present(struct page *page)
|
|
|
|
{
|
|
|
|
return true;
|
|
|
|
}
|
2019-04-26 08:11:34 +08:00
|
|
|
#endif
|
|
|
|
|
2018-07-14 12:50:32 +08:00
|
|
|
#ifndef set_mce_nospec
|
2020-05-21 00:35:46 +08:00
|
|
|
static inline int set_mce_nospec(unsigned long pfn, bool unmap)
|
2018-07-14 12:50:32 +08:00
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef clear_mce_nospec
|
|
|
|
static inline int clear_mce_nospec(unsigned long pfn)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2018-03-19 18:38:22 +08:00
|
|
|
#ifndef CONFIG_ARCH_HAS_MEM_ENCRYPT
|
|
|
|
static inline int set_memory_encrypted(unsigned long addr, int numpages)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int set_memory_decrypted(unsigned long addr, int numpages)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_ARCH_HAS_MEM_ENCRYPT */
|
|
|
|
|
2017-07-07 06:35:52 +08:00
|
|
|
#endif /* _LINUX_SET_MEMORY_H_ */
|