5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
36 lines
652 B
C
36 lines
652 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* SVM helper functions
|
|
*
|
|
* Copyright 2018 Anshuman Khandual, IBM Corporation.
|
|
*/
|
|
|
|
#ifndef _ASM_POWERPC_SVM_H
|
|
#define _ASM_POWERPC_SVM_H
|
|
|
|
#ifdef CONFIG_PPC_SVM
|
|
|
|
static inline bool is_secure_guest(void)
|
|
{
|
|
return mfmsr() & MSR_S;
|
|
}
|
|
|
|
void __init svm_swiotlb_init(void);
|
|
|
|
void dtl_cache_ctor(void *addr);
|
|
#define get_dtl_cache_ctor() (is_secure_guest() ? dtl_cache_ctor : NULL)
|
|
|
|
#else /* CONFIG_PPC_SVM */
|
|
|
|
static inline bool is_secure_guest(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline void svm_swiotlb_init(void) {}
|
|
|
|
#define get_dtl_cache_ctor() NULL
|
|
|
|
#endif /* CONFIG_PPC_SVM */
|
|
#endif /* _ASM_POWERPC_SVM_H */
|