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-rw-r--r--include/linux/prctl.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/prctl.h b/include/linux/prctl.h
index 3800639775ae..5c80b1939636 100644
--- a/include/linux/prctl.h
+++ b/include/linux/prctl.h
@@ -67,4 +67,10 @@
#define PR_CAPBSET_READ 23
#define PR_CAPBSET_DROP 24
+/* Get/set the process' ability to use the timestamp counter instruction */
+#define PR_GET_TSC 25
+#define PR_SET_TSC 26
+# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */
+# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */
+
#endif /* _LINUX_PRCTL_H */