From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 41VHcY3qXyzF3Hs for ; Tue, 17 Jul 2018 21:10:04 +1000 (AEST) From: Diana Craciun To: linuxppc-dev@lists.ozlabs.org Cc: mpe@ellerman.id.au, oss@buserror.net, leoyang.li@nxp.com, bharat.bhushan@nxp.com, Diana Craciun Subject: [PATCH v4 2/6] powerpc/fsl: Document nospectre_v1 kernel parameter. Date: Tue, 17 Jul 2018 14:09:53 +0300 Message-Id: <1531825797-14236-3-git-send-email-diana.craciun@nxp.com> In-Reply-To: <1531825797-14236-1-git-send-email-diana.craciun@nxp.com> References: <1531825797-14236-1-git-send-email-diana.craciun@nxp.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Signed-off-by: Diana Craciun --- History: v2-->v3 - new 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 efc7aa7..b346cc7 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 -- 2.5.5