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=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 BA7A4C433E0 for ; Thu, 21 May 2020 22:44:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7306520756 for ; Thu, 21 May 2020 22:44:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="FyxMI4ZZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730712AbgEUWoh (ORCPT ); Thu, 21 May 2020 18:44:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48054 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730371AbgEUWoh (ORCPT ); Thu, 21 May 2020 18:44:37 -0400 Received: from mail-pl1-x644.google.com (mail-pl1-x644.google.com [IPv6:2607:f8b0:4864:20::644]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 56D24C08C5C1 for ; Thu, 21 May 2020 15:44:37 -0700 (PDT) Received: by mail-pl1-x644.google.com with SMTP id w19so3573288ply.11 for ; Thu, 21 May 2020 15:44:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=kJu9W8td60dlHtHyi+5unK6gpeAXqJ29SHAWsL9RWAs=; b=FyxMI4ZZl0PURR7iCViveWuP5CK3+qS4CaqRsugrQpFszxBJL5lNbPEfcYs6PLFYKw t4P6z1zwwxuglPfFfbOr206BbUh0XV5gWoMaTusRIwTt8dC2nkbrAqsX8XwXGuSU4oFw wte7+rxUaQ1tKXsuGjW/mJUFSlFiUGJKJ/7O8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=kJu9W8td60dlHtHyi+5unK6gpeAXqJ29SHAWsL9RWAs=; b=MatTXjjzhkm7tkXo4eVDlBQQWLiDy3yO+4m9ofSmfLo6KYdmDsPqLdg4KyWfq3Gh2R 25Fft1OX7ewnsEgFI8Q+imqplpha7HdT8/p2gZfVjY6pqM+M0U6wJS8sOX4KWCawPSyM CrqVSsWGFnBPh68nrJeZeAvd2zQ1WpeQh9KbYjTrQpDLaILNSWoaXBpkRVfDOr3k1+rJ D0+UwlBigL6M0vNSncw5zjH3r+dAIDrbLFAoVvO32s7WhLjo1LHlluXwwkcIwMIYJdVj J13h54cSrBXJau+gKfu5tsdYVRpuD8gde8c0HZ9Z1penABLdBCEwieD4Mv4O4oDIlRIo I/2Q== X-Gm-Message-State: AOAM530rF11v9dCxN4PLJHFsF0SgTfRZSl3y476m2RtEQYo4HuH+2nUR a7H5Gn9Dd6g41XTuyCZt1DuApw== X-Google-Smtp-Source: ABdhPJwbfzhVpxvrN3j/MRFGPobDoa0suCLVnXlB5gXgmrcSLI+uy6mgMoBKtenCAwI+gnf27dKTyQ== X-Received: by 2002:a17:902:b904:: with SMTP id bf4mr7752059plb.89.1590101076912; Thu, 21 May 2020 15:44:36 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id 196sm5311016pfx.105.2020.05.21.15.44.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 May 2020 15:44:36 -0700 (PDT) Date: Thu, 21 May 2020 15:44:35 -0700 From: Kees Cook To: Yu-cheng Yu Cc: x86@kernel.org, "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann , Andy Lutomirski , Balbir Singh , Borislav Petkov , Cyrill Gorcunov , Dave Hansen , Eugene Syromiatnikov , Florian Weimer , "H.J. Lu" , Jann Horn , Jonathan Corbet , Mike Kravetz , Nadav Amit , Oleg Nesterov , Pavel Machek , Peter Zijlstra , Randy Dunlap , "Ravi V. Shankar" , Vedvyas Shanbhogue , Dave Martin , Weijiang Yang Subject: Re: [RFC PATCH 2/5] selftest/x86: Enable CET for selftests/x86 Message-ID: <202005211544.26CD475832@keescook> References: <20200521211720.20236-1-yu-cheng.yu@intel.com> <20200521211720.20236-3-yu-cheng.yu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200521211720.20236-3-yu-cheng.yu@intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 21, 2020 at 02:17:17PM -0700, Yu-cheng Yu wrote: > To build CET-enabled applications, GCC needs to support '-fcf-protection'. > Update x86 selftest makefile to detect and enable CET for x86 selftest > applications. > > Signed-off-by: Yu-cheng Yu Reviewed-by: Kees Cook -- Kees Cook