1 files changed, 12 insertions, 0 deletions

diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h
index af5f8c2df87a..db9f15f5db04 100644
--- a/tools/include/uapi/linux/prctl.h
+++ b/tools/include/uapi/linux/prctl.h
@@ -207,4 +207,16 @@ struct prctl_mm_map {
 # define PR_SVE_VL_LEN_MASK             0xffff
 # define PR_SVE_VL_INHERIT              (1 << 17) /* inherit across exec */
 
+/* Per task speculation control */
+#define PR_GET_SPECULATION_CTRL         52
+#define PR_SET_SPECULATION_CTRL         53
+/* Speculation control variants */
+# define PR_SPEC_STORE_BYPASS           0
+/* Return and control values for PR_SET/GET_SPECULATION_CTRL */
+# define PR_SPEC_NOT_AFFECTED           0
+# define PR_SPEC_PRCTL                  (1UL << 0)
+# define PR_SPEC_ENABLE                 (1UL << 1)
+# define PR_SPEC_DISABLE                (1UL << 2)
+# define PR_SPEC_FORCE_DISABLE          (1UL << 3)
+
 #endif /* _LINUX_PRCTL_H */