blob: ae45263892611d95dd24789c7770ea3eddc1a1b3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* AMD Memory Encryption Support
*
* Copyright (C) 2016 Advanced Micro Devices, Inc.
*
* Author: Tom Lendacky <thomas.lendacky@amd.com>
*/
#ifndef __MEM_ENCRYPT_H__
#define __MEM_ENCRYPT_H__
#ifndef __ASSEMBLY__
#ifdef CONFIG_ARCH_HAS_MEM_ENCRYPT
#include <asm/mem_encrypt.h>
#endif /* CONFIG_ARCH_HAS_MEM_ENCRYPT */
#ifdef CONFIG_AMD_MEM_ENCRYPT
/*
* The __sme_set() and __sme_clr() macros are useful for adding or removing
* the encryption mask from a value (e.g. when dealing with pagetable
* entries).
*/
#define __sme_set(x) ((x) | sme_me_mask)
#define __sme_clr(x) ((x) & ~sme_me_mask)
#else
#define __sme_set(x) (x)
#define __sme_clr(x) (x)
#endif
#endif /* __ASSEMBLY__ */
#endif /* __MEM_ENCRYPT_H__ */
|
