forked from mirrors/linux
e9d1d2bb75
Replace uses of mem_encrypt_active() with calls to cc_platform_has() with the CC_ATTR_MEM_ENCRYPT attribute. Remove the implementation of mem_encrypt_active() across all arches. For s390, since the default implementation of the cc_platform_has() matches the s390 implementation of mem_encrypt_active(), cc_platform_has() does not need to be implemented in s390 (the config option ARCH_HAS_CC_PLATFORM is not set). Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210928191009.32551-9-bp@alien8.de
21 lines
456 B
C
21 lines
456 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* SVM helper functions
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*
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* Copyright 2018 IBM Corporation
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*/
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#ifndef _ASM_POWERPC_MEM_ENCRYPT_H
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#define _ASM_POWERPC_MEM_ENCRYPT_H
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#include <asm/svm.h>
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static inline bool force_dma_unencrypted(struct device *dev)
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{
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return is_secure_guest();
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}
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int set_memory_encrypted(unsigned long addr, int numpages);
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int set_memory_decrypted(unsigned long addr, int numpages);
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#endif /* _ASM_POWERPC_MEM_ENCRYPT_H */
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