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36 lines
710 B
C
36 lines
710 B
C
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/*
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* AMD Memory Encryption Support
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*
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* Copyright (C) 2016 Advanced Micro Devices, Inc.
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*
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* Author: Tom Lendacky <thomas.lendacky@amd.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __MEM_ENCRYPT_H__
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#define __MEM_ENCRYPT_H__
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#ifndef __ASSEMBLY__
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#ifdef CONFIG_ARCH_HAS_MEM_ENCRYPT
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#include <asm/mem_encrypt.h>
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#else /* !CONFIG_ARCH_HAS_MEM_ENCRYPT */
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#define sme_me_mask 0UL
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#endif /* CONFIG_ARCH_HAS_MEM_ENCRYPT */
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static inline bool sme_active(void)
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{
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return !!sme_me_mask;
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}
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#endif /* __ASSEMBLY__ */
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#endif /* __MEM_ENCRYPT_H__ */
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