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=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 A9569C282DA for ; Mon, 15 Apr 2019 18:45:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6F9C9218EA for ; Mon, 15 Apr 2019 18:45:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555353925; bh=KR6aSEvNHR8dpkikGZPwihP6nIvxV3cnex0/K0fOEkg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=yuy9aqW+yQWotJ9Zs8h114QlBhY8GvygXgGeFxzfnCFdQT3U3OEkADPFojojvKnA/ tr+hzgOu1h2gpWeAl9hkzcDL5qmiDVFNjCgZF78iuy1U914Z1w7wfgZnHpF8jQE8li i7Hh0g2M7fGyYrBObNB/mkOkZrq+r6w9C10SSz3o= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728357AbfDOSpY (ORCPT ); Mon, 15 Apr 2019 14:45:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:47668 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728335AbfDOSpS (ORCPT ); Mon, 15 Apr 2019 14:45:18 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3E343218EA; Mon, 15 Apr 2019 18:45:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555353917; bh=KR6aSEvNHR8dpkikGZPwihP6nIvxV3cnex0/K0fOEkg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cWJSLYddR9mq03cFrvFl95ceegjxOuLsxHrgPrjEThEH3Y75xfktUxEa2HE3Y6LOU iDk9DsqpfJOLG/rh0PGq5vKVDrzgtAtasa8rJsJY4ryGW9tfZzlOG+3DYIdBYmgDVu xMyYAyG8zP0TUNp0qEwmNJg+d9EpPeY7l8oV6Ei8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Michal Suchanek , Michael Ellerman , Sasha Levin Subject: [PATCH 4.9 18/76] powerpc/64s: Enhance the information in cpu_show_spectre_v1() Date: Mon, 15 Apr 2019 20:43:42 +0200 Message-Id: <20190415183712.389439208@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190415183707.712011689@linuxfoundation.org> References: <20190415183707.712011689@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org commit a377514519b9a20fa1ea9adddbb4129573129cef upstream. We now have barrier_nospec as mitigation so print it in cpu_show_spectre_v1() when enabled. Signed-off-by: Michal Suchanek Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin --- arch/powerpc/kernel/security.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c index d0e974da4918..f189f946d935 100644 --- a/arch/powerpc/kernel/security.c +++ b/arch/powerpc/kernel/security.c @@ -121,6 +121,9 @@ ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr, c if (!security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR)) return sprintf(buf, "Not affected\n"); + if (barrier_nospec_enabled) + return sprintf(buf, "Mitigation: __user pointer sanitization\n"); + return sprintf(buf, "Vulnerable\n"); } -- 2.19.1