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authorSzabolcs Nagy <nsz@port70.net>2018-06-09 21:23:54 +0000
committerRich Felker <dalias@aerifal.cx>2018-06-19 13:27:08 -0400
commitda9f2b2ac8d91e556125d5b0f94830f88f1bc487 (patch)
tree15c859759044c668b2dc7461ff5656d976e8a8d7 /include/sys
parent5b85ed5cec915a2f1c23170e59b0658986c0ade4 (diff)
downloadmusl-da9f2b2ac8d91e556125d5b0f94830f88f1bc487.tar.gz
add speculation control prctls from linux v4.17
PR_{SET,GET}_SPECULATION_CTRL controls speculation related vulnerability mitigations, new in commits b617cfc858161140d69cc0b5cc211996b557a1c7 356e4bfff2c5489e016fdb925adbf12a1e3950ee
Diffstat (limited to 'include/sys')
-rw-r--r--include/sys/prctl.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/sys/prctl.h b/include/sys/prctl.h
index aa0c7a88..af76408c 100644
--- a/include/sys/prctl.h
+++ b/include/sys/prctl.h
@@ -136,6 +136,15 @@ struct prctl_mm_map {
#define PR_SVE_VL_LEN_MASK 0xffff
#define PR_SVE_VL_INHERIT (1 << 17)
+#define PR_GET_SPECULATION_CTRL 52
+#define PR_SET_SPECULATION_CTRL 53
+#define PR_SPEC_STORE_BYPASS 0
+#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)
+
int prctl (int, ...);
#ifdef __cplusplus