[mirror_ubuntu-bionic-kernel.git] / arch / x86 / include / asm / mem_encrypt.h

/*
 * AMD Memory Encryption Support
 *
 * Copyright (C) 2016 Advanced Micro Devices, Inc.
 *
 * Author: Tom Lendacky <thomas.lendacky@amd.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef __X86_MEM_ENCRYPT_H__
#define __X86_MEM_ENCRYPT_H__

#ifndef __ASSEMBLY__

#ifdef CONFIG_AMD_MEM_ENCRYPT

extern unsigned long sme_me_mask;

#else	/* !CONFIG_AMD_MEM_ENCRYPT */

#define sme_me_mask	0UL

#endif	/* CONFIG_AMD_MEM_ENCRYPT */

#endif	/* __ASSEMBLY__ */

#endif	/* __X86_MEM_ENCRYPT_H__ */
Commit	Line	Data
7744ccdb TL	1	/*
	2	* AMD Memory Encryption Support
	3	*
	4	* Copyright (C) 2016 Advanced Micro Devices, Inc.
	5	*
	6	* Author: Tom Lendacky <thomas.lendacky@amd.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*/
	12
	13	#ifndef __X86_MEM_ENCRYPT_H__
	14	#define __X86_MEM_ENCRYPT_H__
	15
	16	#ifndef __ASSEMBLY__
	17
	18	#ifdef CONFIG_AMD_MEM_ENCRYPT
	19
	20	extern unsigned long sme_me_mask;
	21
	22	#else /* !CONFIG_AMD_MEM_ENCRYPT */
	23
	24	#define sme_me_mask 0UL
	25
	26	#endif /* CONFIG_AMD_MEM_ENCRYPT */
	27
	28	#endif /* __ASSEMBLY__ */
	29
	30	#endif /* __X86_MEM_ENCRYPT_H__ */