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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syscall_user_dispatch.h (930B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Copyright (C) 2020 Collabora Ltd.
      4 */
      5#ifndef _SYSCALL_USER_DISPATCH_H
      6#define _SYSCALL_USER_DISPATCH_H
      7
      8#include <linux/thread_info.h>
      9
     10#ifdef CONFIG_GENERIC_ENTRY
     11
     12struct syscall_user_dispatch {
     13	char __user	*selector;
     14	unsigned long	offset;
     15	unsigned long	len;
     16	bool		on_dispatch;
     17};
     18
     19int set_syscall_user_dispatch(unsigned long mode, unsigned long offset,
     20			      unsigned long len, char __user *selector);
     21
     22#define clear_syscall_work_syscall_user_dispatch(tsk) \
     23	clear_task_syscall_work(tsk, SYSCALL_USER_DISPATCH)
     24
     25#else
     26struct syscall_user_dispatch {};
     27
     28static inline int set_syscall_user_dispatch(unsigned long mode, unsigned long offset,
     29					    unsigned long len, char __user *selector)
     30{
     31	return -EINVAL;
     32}
     33
     34static inline void clear_syscall_work_syscall_user_dispatch(struct task_struct *tsk)
     35{
     36}
     37
     38#endif /* CONFIG_GENERIC_ENTRY */
     39
     40#endif /* _SYSCALL_USER_DISPATCH_H */