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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 218F9C4332F for ; Mon, 3 Oct 2022 23:59:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229942AbiJCX7v (ORCPT ); Mon, 3 Oct 2022 19:59:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42400 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229674AbiJCX7u (ORCPT ); Mon, 3 Oct 2022 19:59:50 -0400 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E1CA16428 for ; Mon, 3 Oct 2022 16:59:45 -0700 (PDT) Received: by mail-pj1-x102f.google.com with SMTP id x1-20020a17090ab00100b001fda21bbc90so16762022pjq.3 for ; Mon, 03 Oct 2022 16:59:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date; bh=RIJLKN8u3zDyFaSBgpFe42GEBZf7a4VcF4ED49hMdZc=; b=U+gKP1h4Pv9jFJIM8fjrqS3Zno7OwmnOpMAEvlBoaqn2bYimBV48LjwocIwL22pTj/ XGCusQxLHKaS1oM8qYA/31YZIM1g4yyqMOyA0EeUSQHwPMu/2406h3E8d5UGens+Sg6R JFsWqk+j7+9V4+Cv11zUIopHfUbO1vKfQtibE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date; bh=RIJLKN8u3zDyFaSBgpFe42GEBZf7a4VcF4ED49hMdZc=; b=eig4k4k3KYtu9Sshai57x7wD0Eu2x+FG6l03ptUVa66HoVX9iQ8/i2onl6oheImAz5 9p44CEhKmqZ+UYgPTYH6ujmhtEDRJ0zspXEE3BfQMESKJ3JJOfC+VxUtglCtEvEiF2sD t3R6KqbxHE0DmWz2PfyKclyXLniT8lkFVVZNIcbcUOfCrg90TZpaNAJnuGX5XerHSV6k JM/OCAPoJfHuMSLLi3j6ilUWgkss6pArCuBZqPjfSxria8oackkVpx6bL+TMSmdlPW/q 4oHbCL5Bsnh1JLrUy2+37v5+6gRDSQtcd35i1uzUsEjcHuFWPD+IXdSFHRif6omb6Tfj p+lA== X-Gm-Message-State: ACrzQf2OvWWogRzmTnrp3lU1y9xJUsDyvNt1Eur8Wn5XOrkSENBh/M6B Y11rZUIUuLuIYM7tQp58sMrAsw== X-Google-Smtp-Source: AMsMyM5ug1R6yL4efHcI6RcSe9hN88kwzJ/nJywTthiwC0PYrD9jVlLYOuUXb9T8VVj14hEZ5CWOZA== X-Received: by 2002:a17:90a:7c4a:b0:20a:b201:461a with SMTP id e10-20020a17090a7c4a00b0020ab201461amr5640401pjl.181.1664841585370; Mon, 03 Oct 2022 16:59:45 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id mp8-20020a17090b190800b0020ad26fa65dsm284824pjb.56.2022.10.03.16.59.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Oct 2022 16:59:44 -0700 (PDT) Date: Mon, 3 Oct 2022 16:59:43 -0700 From: Kees Cook To: Rick Edgecombe 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" , Weijiang Yang , "Kirill A . Shutemov" , joao.moreira@intel.com, John Allen , kcc@google.com, eranian@google.com, rppt@kernel.org, jamorris@linux.microsoft.com, dethoma@microsoft.com, Yu-cheng Yu Subject: Re: [OPTIONAL/RFC v2 37/39] x86/cet: Add PTRACE interface for CET Message-ID: <202210031658.EEC88324FD@keescook> References: <20220929222936.14584-1-rick.p.edgecombe@intel.com> <20220929222936.14584-38-rick.p.edgecombe@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220929222936.14584-38-rick.p.edgecombe@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On Thu, Sep 29, 2022 at 03:29:34PM -0700, Rick Edgecombe wrote: > From: Yu-cheng Yu > > Some applications (like GDB and CRIU) would like to tweak CET state via Eee. Does GDB really need this? Can we make this whole thing CONFIG-depend on CRIU? -- Kees Cook