From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FA79C04EB8 for ; Wed, 12 Dec 2018 14:18:27 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 246572084E for ; Wed, 12 Dec 2018 14:18:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 246572084E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 43FJnY0wrczDqRn for ; Thu, 13 Dec 2018 01:18:25 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nxp.com (client-ip=92.121.34.13; helo=inva020.nxp.com; envelope-from=diana.craciun@nxp.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com X-Greylist: delayed 326 seconds by postgrey-1.36 at bilbo; Thu, 13 Dec 2018 01:08:58 AEDT Received: from inva020.nxp.com (inva020.nxp.com [92.121.34.13]) (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 43FJZf5w9MzDqSJ for ; Thu, 13 Dec 2018 01:08:58 +1100 (AEDT) Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 6B95B1A025A; Wed, 12 Dec 2018 15:03:31 +0100 (CET) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 6029F1A0187; Wed, 12 Dec 2018 15:03:31 +0100 (CET) Received: from fsr-ub1664-009.ea.freescale.net (fsr-ub1664-009.ea.freescale.net [10.171.71.77]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 28FEC205E5; Wed, 12 Dec 2018 15:03:31 +0100 (CET) From: Diana Craciun To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 09/11] powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used Date: Wed, 12 Dec 2018 16:03:08 +0200 Message-Id: <1544623390-18710-10-git-send-email-diana.craciun@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1544623390-18710-1-git-send-email-diana.craciun@nxp.com> References: <1544623390-18710-1-git-send-email-diana.craciun@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Diana Craciun Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" If the user choses not to use the mitigations, replace the code sequence with nops. Signed-off-by: Diana Craciun --- arch/powerpc/kernel/setup-common.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 93ee370..f27eeda 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -974,6 +974,7 @@ void __init setup_arch(char **cmdline_p) ppc_md.setup_arch(); setup_barrier_nospec(); + setup_spectre_v2(); paging_init(); -- 2.5.5