From 13c73da72f4c0926c82ce46964afc40c41cc7025 Mon Sep 17 00:00:00 2001 From: Szabolcs Nagy Date: Wed, 23 Jan 2019 20:50:55 +0000 Subject: [PATCH] sys/prctl.h: add PR_SPEC_INDIRECT_BRANCH from linux v4.20 prctls to allow per task control of indirect branch speculation on x86. added in linux commit 9137bb27e60e554dab694eafa4cca241fa3a694f --- include/sys/prctl.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/sys/prctl.h b/include/sys/prctl.h index af76408c..07a3490b 100644 --- a/include/sys/prctl.h +++ b/include/sys/prctl.h @@ -139,6 +139,7 @@ struct prctl_mm_map { #define PR_GET_SPECULATION_CTRL 52 #define PR_SET_SPECULATION_CTRL 53 #define PR_SPEC_STORE_BYPASS 0 +#define PR_SPEC_INDIRECT_BRANCH 1 #define PR_SPEC_NOT_AFFECTED 0 #define PR_SPEC_PRCTL (1UL << 0) #define PR_SPEC_ENABLE (1UL << 1) -- 2.25.1