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35 lines
652 B
35 lines
652 B
/* 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 Anshuman Khandual, IBM Corporation. |
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*/ |
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#ifndef _ASM_POWERPC_SVM_H |
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#define _ASM_POWERPC_SVM_H |
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#ifdef CONFIG_PPC_SVM |
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static inline bool is_secure_guest(void) |
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{ |
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return mfmsr() & MSR_S; |
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} |
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void __init svm_swiotlb_init(void); |
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void dtl_cache_ctor(void *addr); |
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#define get_dtl_cache_ctor() (is_secure_guest() ? dtl_cache_ctor : NULL) |
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#else /* CONFIG_PPC_SVM */ |
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static inline bool is_secure_guest(void) |
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{ |
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return false; |
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} |
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static inline void svm_swiotlb_init(void) {} |
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#define get_dtl_cache_ctor() NULL |
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#endif /* CONFIG_PPC_SVM */ |
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#endif /* _ASM_POWERPC_SVM_H */
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