include/linux/nospec.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright(c) 2018 Linus Torvalds. All rights reserved.
   3 // Copyright(c) 2018 Alexei Starovoitov. All rights reserved.
   4 // Copyright(c) 2018 Intel Corporation. All rights reserved.
   5
   6 #ifndef _LINUX_NOSPEC_H
   7 #define _LINUX_NOSPEC_H
   8 #include <asm/barrier.h>
   9
  10 struct task_struct;
  11
  12 /* Speculation control prctl */
  13 int arch_prctl_spec_ctrl_get(struct task_struct *task, unsigned long which);
  14 int arch_prctl_spec_ctrl_set(struct task_struct *task, unsigned long which,
  15                              unsigned long ctrl);
  16 /* Speculation control for seccomp enforced mitigation */
  17 void arch_seccomp_spec_mitigate(struct task_struct *task);
  18
  19 #endif /* _LINUX_NOSPEC_H */