From 26cb1f36c43ee6e89d2a9f48a5a7500d5248f836 Mon Sep 17 00:00:00 2001 From: Diana Craciun Date: Sat, 28 Jul 2018 09:06:39 +1000 Subject: [PATCH] Documentation: Add nospectre_v1 parameter Currently only supported on powerpc. Signed-off-by: Diana Craciun Signed-off-by: Michael Ellerman --- Documentation/admin-guide/kernel-parameters.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index efc7aa7a0670..4167bbea51e1 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2687,6 +2687,10 @@ nosmt [KNL,S390] Disable symmetric multithreading (SMT). Equivalent to smt=1. + nospectre_v1 [PPC] Disable mitigations for Spectre Variant 1 (bounds + check bypass). With this option data leaks are possible + in the system. + nospectre_v2 [X86] Disable all mitigations for the Spectre variant 2 (indirect branch prediction) vulnerability. System may allow data leaks with this option, which is equivalent