cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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hugetlb-3level.h (690B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * arch/arm/include/asm/hugetlb-3level.h
      4 *
      5 * Copyright (C) 2012 ARM Ltd.
      6 *
      7 * Based on arch/x86/include/asm/hugetlb.h.
      8 */
      9
     10#ifndef _ASM_ARM_HUGETLB_3LEVEL_H
     11#define _ASM_ARM_HUGETLB_3LEVEL_H
     12
     13
     14/*
     15 * If our huge pte is non-zero then mark the valid bit.
     16 * This allows pte_present(huge_ptep_get(ptep)) to return true for non-zero
     17 * ptes.
     18 * (The valid bit is automatically cleared by set_pte_at for PROT_NONE ptes).
     19 */
     20#define __HAVE_ARCH_HUGE_PTEP_GET
     21static inline pte_t huge_ptep_get(pte_t *ptep)
     22{
     23	pte_t retval = *ptep;
     24	if (pte_val(retval))
     25		pte_val(retval) |= L_PTE_VALID;
     26	return retval;
     27}
     28
     29#endif /* _ASM_ARM_HUGETLB_3LEVEL_H */