162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0+ */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * SVM helper functions 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright 2018 Anshuman Khandual, IBM Corporation. 662306a36Sopenharmony_ci */ 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#ifndef _ASM_POWERPC_SVM_H 962306a36Sopenharmony_ci#define _ASM_POWERPC_SVM_H 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#ifdef CONFIG_PPC_SVM 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ci#include <asm/reg.h> 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_cistatic inline bool is_secure_guest(void) 1662306a36Sopenharmony_ci{ 1762306a36Sopenharmony_ci return mfmsr() & MSR_S; 1862306a36Sopenharmony_ci} 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_civoid dtl_cache_ctor(void *addr); 2162306a36Sopenharmony_ci#define get_dtl_cache_ctor() (is_secure_guest() ? dtl_cache_ctor : NULL) 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci#else /* CONFIG_PPC_SVM */ 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_cistatic inline bool is_secure_guest(void) 2662306a36Sopenharmony_ci{ 2762306a36Sopenharmony_ci return false; 2862306a36Sopenharmony_ci} 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci#define get_dtl_cache_ctor() NULL 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci#endif /* CONFIG_PPC_SVM */ 3362306a36Sopenharmony_ci#endif /* _ASM_POWERPC_SVM_H */ 34