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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FSL_HELO_FAKE,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 B1CF8C3A5A2 for ; Tue, 10 Sep 2019 06:28:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 878AD2089F for ; Tue, 10 Sep 2019 06:28:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568096914; bh=Z8SdUBr/pxgrvYmv0xvoouEGCXHKvc9zLTkOKAKmVq8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=BgEsvRIxz6VNyAEtIN+7b+xVVTGv4B+03QDxohxvkOnCMosgqTt7SSlfqHwpHwkS2 IpYmTa+P6S/qIF6m2DreLgrg3FpxmxrsQtvlrn/R6y9i+vHlIX/2zn7Wu+2CUAiYyL yBL54+Bh2MA2/PpiEionOmGY5U2/rZmKlXohz8lY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391052AbfIJG2d (ORCPT ); Tue, 10 Sep 2019 02:28:33 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:46361 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390972AbfIJG2d (ORCPT ); Tue, 10 Sep 2019 02:28:33 -0400 Received: by mail-wr1-f65.google.com with SMTP id d17so4832667wrq.13 for ; Mon, 09 Sep 2019 23:28:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=gnd3zJ6Jbj8de8UBRHzFgrvEzz4SiH/EdhT/uig12QU=; b=M3SXkENJpc9uwxmLGxNX1o823ojcUjwgXkF69PN1iNG6ZOy5qPpZwtqhbAPqIA3Ep8 fQkJT3c8Gmjd7T3H6+SDVsQG/ZH2+y1oBW2v8W5cMTi3HZwv+8mMUG/P4ojOvuYHC8KU K2nES/2Tj3Pw0O9Sql2DevhrPJclzjrp35WHI0r3w3uRJKhdr9NUWGWYrSzjSFOIN2QY l9oCEXNZcT1l/E3eZvgUtQx5rfAScUQ5XxEmpVXXwW0SYlXHP9RSfuhnT+dDImCmNLOV X64Nthwd26AnA+Q1lmcT/HSUc0fB2KVF4SBKHCIvK9SMXTQ4YYd05yltweWPpZe7s+6J 7FvA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=gnd3zJ6Jbj8de8UBRHzFgrvEzz4SiH/EdhT/uig12QU=; b=sY5vbMXbe3uTyxVdMj8wUBI4+qY+bnPYWd/C7bJ0JIwKfX1RRlw2jBji1OGlGqE2rt R7x8duS+d3LWyhDJlfzBVAIsW0/FZ4cBpS4Cki+XhoVeuEw8ecLWZsyr2hoZxIilOgAc d9eBMXqnp+RI/a2g1M4aAAuPPpgDJsL/9XvVF6DCujPY1HfVvD2KAYhGoGz8VLS+KhQT pri/y8+CBSBfenAzZoevIzE9/hcdfIEyX71nGLzHZw5rK3Ons73NWw+JIifNpcqsDSIy eqjiiaQW1reu1PCcecnodAumpCPnwsPthZioq+C0gvvpy40acSWcXw8ByRAiZjEKYuTs uUHQ== X-Gm-Message-State: APjAAAVz8fnkgB9avxO7nDMSfAQvayCHZtO76urHI3GtvVt4F+nT3PLj bOGDFUuWww1ZLCyFBxAR0XA= X-Google-Smtp-Source: APXvYqxg/VH934LWyW7E2gVt/dlgnyJMldvZXAtUgDiTcT1hzoCwXufdyp121qZy/khP9jtqycazyA== X-Received: by 2002:adf:c504:: with SMTP id q4mr21604701wrf.266.1568096911367; Mon, 09 Sep 2019 23:28:31 -0700 (PDT) Received: from gmail.com (2E8B0CD5.catv.pool.telekom.hu. [46.139.12.213]) by smtp.gmail.com with ESMTPSA id e30sm31326987wra.48.2019.09.09.23.28.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Sep 2019 23:28:30 -0700 (PDT) Date: Tue, 10 Sep 2019 08:28:28 +0200 From: Ingo Molnar To: hpa@zytor.com Cc: Brendan Shanks , linux-kernel@vger.kernel.org, Ricardo Neri , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "Eric W. Biederman" Subject: Re: [PATCH] x86/umip: Add emulation for 64-bit processes Message-ID: <20190910062828.GA40888@gmail.com> References: <20190905232222.14900-1-bshanks@codeweavers.com> <7BFFC7D1-6158-4237-AEF9-D10635F054FC@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7BFFC7D1-6158-4237-AEF9-D10635F054FC@zytor.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * hpa@zytor.com wrote: > I would strongly suggest that we change the term "emulation" to > "spoofing" for these instructions. We need to explain that we do *not* > execute these instructions the was the CPU would have, and unlike the > native instructions do not leak kernel information. Ok, I've edited the patch to add the 'spoofing' wording where appropriate, and I also made minor fixes such as consistently capitalizing instruction names. Can I also add your Reviewed-by tag? So the patch should show up in tip:x86/asm today-ish, and barring any complications is v5.4 material. Thanks, Ingo