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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mm_hooks.h (753B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Define generic no-op hooks for arch_dup_mmap, arch_exit_mmap
      4 * and arch_unmap to be included in asm-FOO/mmu_context.h for any
      5 * arch FOO which doesn't need to hook these.
      6 */
      7#ifndef _ASM_GENERIC_MM_HOOKS_H
      8#define _ASM_GENERIC_MM_HOOKS_H
      9
     10static inline int arch_dup_mmap(struct mm_struct *oldmm,
     11				struct mm_struct *mm)
     12{
     13	return 0;
     14}
     15
     16static inline void arch_exit_mmap(struct mm_struct *mm)
     17{
     18}
     19
     20static inline void arch_unmap(struct mm_struct *mm,
     21			unsigned long start, unsigned long end)
     22{
     23}
     24
     25static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
     26		bool write, bool execute, bool foreign)
     27{
     28	/* by default, allow everything */
     29	return true;
     30}
     31#endif	/* _ASM_GENERIC_MM_HOOKS_H */