LXR linux/arch/powerpc/include/asm/svm.h

   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 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
  28#define get_dtl_cache_ctor() NULL
  29
  30#endif /* CONFIG_PPC_SVM */
  31#endif /* _ASM_POWERPC_SVM_H */
  32