svm.h (976e3645923bdd2fe7893aae33fd7a21098bfb28) svm.h (eae9eec476d13fad9af6da1f44a054ee02b7b161)
1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * SVM helper functions
4 *
5 * Copyright 2018 Anshuman Khandual, IBM Corporation.
6 */
7
8#ifndef _ASM_POWERPC_SVM_H
9#define _ASM_POWERPC_SVM_H
10
11#ifdef CONFIG_PPC_SVM
12
13static inline bool is_secure_guest(void)
14{
15 return mfmsr() & MSR_S;
16}
17
1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * SVM helper functions
4 *
5 * Copyright 2018 Anshuman Khandual, IBM Corporation.
6 */
7
8#ifndef _ASM_POWERPC_SVM_H
9#define _ASM_POWERPC_SVM_H
10
11#ifdef CONFIG_PPC_SVM
12
13static inline bool is_secure_guest(void)
14{
15 return mfmsr() & MSR_S;
16}
17
18void __init svm_swiotlb_init(void);
19
18void dtl_cache_ctor(void *addr);
19#define get_dtl_cache_ctor() (is_secure_guest() ? dtl_cache_ctor : NULL)
20
21#else /* CONFIG_PPC_SVM */
22
23static inline bool is_secure_guest(void)
24{
25 return false;
26}
27
20void dtl_cache_ctor(void *addr);
21#define get_dtl_cache_ctor() (is_secure_guest() ? dtl_cache_ctor : NULL)
22
23#else /* CONFIG_PPC_SVM */
24
25static inline bool is_secure_guest(void)
26{
27 return false;
28}
29
30static inline void svm_swiotlb_init(void) {}
31
28#define get_dtl_cache_ctor() NULL
29
30#endif /* CONFIG_PPC_SVM */
31#endif /* _ASM_POWERPC_SVM_H */
32#define get_dtl_cache_ctor() NULL
33
34#endif /* CONFIG_PPC_SVM */
35#endif /* _ASM_POWERPC_SVM_H */