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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2018-06-12 16:38:35 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2018-06-12 16:38:35 -0700
commit5aff29efbec020f0997e5cdbefce0ff383518986 (patch)
tree8b7df95c23b3cd2cfa17873ff0fa999dd5ae35bd /include/linux/nospec.h
parent9bd034225300c7ddf14f4b4c28531efc7a5e1524 (diff)
parent3ef8a2eeb6dcd1fa61ec8ae107976e655f50e412 (diff)
Merge branch 'ib/4.17-xen-kbdfront-runtime-config' into next
Bring in xen-kbdfront changes.
Diffstat (limited to 'include/linux/nospec.h')
-rw-r--r--include/linux/nospec.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/nospec.h b/include/linux/nospec.h
index e791ebc65c9c..0c5ef54fd416 100644
--- a/include/linux/nospec.h
+++ b/include/linux/nospec.h
@@ -7,6 +7,8 @@
#define _LINUX_NOSPEC_H
#include <asm/barrier.h>
+struct task_struct;
+
/**
* array_index_mask_nospec() - generate a ~0 mask when index < size, 0 otherwise
* @index: array element index
@@ -55,4 +57,12 @@ static inline unsigned long array_index_mask_nospec(unsigned long index,
\
(typeof(_i)) (_i & _mask); \
})
+
+/* Speculation control prctl */
+int arch_prctl_spec_ctrl_get(struct task_struct *task, unsigned long which);
+int arch_prctl_spec_ctrl_set(struct task_struct *task, unsigned long which,
+ unsigned long ctrl);
+/* Speculation control for seccomp enforced mitigation */
+void arch_seccomp_spec_mitigate(struct task_struct *task);
+
#endif /* _LINUX_NOSPEC_H */