Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp3975835ybl; Tue, 21 Jan 2020 10:27:08 -0800 (PST) X-Google-Smtp-Source: APXvYqyXzcVQL7VfLkzA8f7jAQGHBAKXlNJBL0KMC65RYfpDFlKfx7HkCBCYzuEQOk13oY14NgwW X-Received: by 2002:aca:cdca:: with SMTP id d193mr3982040oig.152.1579631228145; Tue, 21 Jan 2020 10:27:08 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1579631228; cv=none; d=google.com; s=arc-20160816; b=W/hGz0dLkRC83L/RX/Jy8TuUmGFgrK4zH72WUvAK9FCF63cpjeD0/SffwgGkO8KKqU 76GJf3IARDVPPB1xh3EaRjYqnlY9ZhX86OJk787q1M2HxrbqyxHW4Ra44t8pmG6ncPBT h0voir98yjat8sX5RJtHQjnALDeYtVc47DTY0203KzF1dGas0LlwHMBn9YMvEF6P+IFO xSCtPOJOInTkmIZBzi+MHVMQEQf80YmG6CjD8zZXlYQPh1PbmcaTAOYnztscpV4Ph+xk lokOM5g/bYf2sZ7dZ3ehjxCIM2X7WZ6qJd0UXc0uEbTvLJFUIDRzQk1FsixzFDzNFBrZ 8TGA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:autocrypt:openpgp:from:references:cc:to:subject; bh=3tMspYEoIcViwV/mxb5L06NggJIG1yPiEABLCgIvMuA=; b=sMa3ORpzU4O4uUTWo98QbParV9+b2Rhhi7Hnpe3ehs08RvvcUb8esxAZV2VQtYfsmr hK2trNTJyExw4Fqh7VLjyiKW8Yq5yQuyfxUT/jGtubl36ujhB09BLmJG7N8Mk9yBe3uI iGfG5Fo9KQ9S557G0IuVFFWO51JltjbaO11nao/T47GQ39GZ+E+McFRh4FT1rWudivzM RIBsklBqdXDAqaFS1Qmw+gytWfiu0qkPk7Qz+zEVLajpvaMulIQSXbIHcVSZoxjvwWwQ 8TiV41RPh6nUgvIVzsu2b0+3g91jMLIp8645tSpHJQmteldY9YnkpeiwCpNoZpGJCv5S fYiw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id z1si22176480otp.70.2020.01.21.10.26.54; Tue, 21 Jan 2020 10:27:08 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729174AbgAUSZz (ORCPT + 99 others); Tue, 21 Jan 2020 13:25:55 -0500 Received: from mga09.intel.com ([134.134.136.24]:13936 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728186AbgAUSZz (ORCPT ); Tue, 21 Jan 2020 13:25:55 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Jan 2020 10:25:54 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,346,1574150400"; d="scan'208";a="228945624" Received: from ray.jf.intel.com (HELO [10.24.8.199]) ([10.24.8.199]) by orsmga006.jf.intel.com with ESMTP; 21 Jan 2020 10:25:54 -0800 Subject: Re: [FYI PATCH 0/7] Mitigation for CVE-2018-12207 To: Jan Kiszka , Ralf Ramsauer , Paolo Bonzini , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: "Gupta, Pawan Kumar" , Josh Poimboeuf References: <1573593697-25061-1-git-send-email-pbonzini@redhat.com> <23353382-53ea-8b20-7e30-763ef6df374c@siemens.com> <60b2a488-74b8-897c-4b25-e228d3fe7d55@oth-regensburg.de> <9f8b95d1-7b5f-d16d-2e5a-52f4b9cd0922@siemens.com> From: Dave Hansen Openpgp: preference=signencrypt Autocrypt: addr=dave.hansen@intel.com; keydata= mQINBE6HMP0BEADIMA3XYkQfF3dwHlj58Yjsc4E5y5G67cfbt8dvaUq2fx1lR0K9h1bOI6fC oAiUXvGAOxPDsB/P6UEOISPpLl5IuYsSwAeZGkdQ5g6m1xq7AlDJQZddhr/1DC/nMVa/2BoY 2UnKuZuSBu7lgOE193+7Uks3416N2hTkyKUSNkduyoZ9F5twiBhxPJwPtn/wnch6n5RsoXsb ygOEDxLEsSk/7eyFycjE+btUtAWZtx+HseyaGfqkZK0Z9bT1lsaHecmB203xShwCPT49Blxz VOab8668QpaEOdLGhtvrVYVK7x4skyT3nGWcgDCl5/Vp3TWA4K+IofwvXzX2ON/Mj7aQwf5W iC+3nWC7q0uxKwwsddJ0Nu+dpA/UORQWa1NiAftEoSpk5+nUUi0WE+5DRm0H+TXKBWMGNCFn c6+EKg5zQaa8KqymHcOrSXNPmzJuXvDQ8uj2J8XuzCZfK4uy1+YdIr0yyEMI7mdh4KX50LO1 pmowEqDh7dLShTOif/7UtQYrzYq9cPnjU2ZW4qd5Qz2joSGTG9eCXLz5PRe5SqHxv6ljk8mb ApNuY7bOXO/A7T2j5RwXIlcmssqIjBcxsRRoIbpCwWWGjkYjzYCjgsNFL6rt4OL11OUF37wL QcTl7fbCGv53KfKPdYD5hcbguLKi/aCccJK18ZwNjFhqr4MliQARAQABtEVEYXZpZCBDaHJp c3RvcGhlciBIYW5zZW4gKEludGVsIFdvcmsgQWRkcmVzcykgPGRhdmUuaGFuc2VuQGludGVs LmNvbT6JAjgEEwECACIFAlQ+9J0CGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEGg1 lTBwyZKwLZUP/0dnbhDc229u2u6WtK1s1cSd9WsflGXGagkR6liJ4um3XCfYWDHvIdkHYC1t MNcVHFBwmQkawxsYvgO8kXT3SaFZe4ISfB4K4CL2qp4JO+nJdlFUbZI7cz/Td9z8nHjMcWYF IQuTsWOLs/LBMTs+ANumibtw6UkiGVD3dfHJAOPNApjVr+M0P/lVmTeP8w0uVcd2syiaU5jB aht9CYATn+ytFGWZnBEEQFnqcibIaOrmoBLu2b3fKJEd8Jp7NHDSIdrvrMjYynmc6sZKUqH2 I1qOevaa8jUg7wlLJAWGfIqnu85kkqrVOkbNbk4TPub7VOqA6qG5GCNEIv6ZY7HLYd/vAkVY E8Plzq/NwLAuOWxvGrOl7OPuwVeR4hBDfcrNb990MFPpjGgACzAZyjdmYoMu8j3/MAEW4P0z F5+EYJAOZ+z212y1pchNNauehORXgjrNKsZwxwKpPY9qb84E3O9KYpwfATsqOoQ6tTgr+1BR CCwP712H+E9U5HJ0iibN/CDZFVPL1bRerHziuwuQuvE0qWg0+0SChFe9oq0KAwEkVs6ZDMB2 P16MieEEQ6StQRlvy2YBv80L1TMl3T90Bo1UUn6ARXEpcbFE0/aORH/jEXcRteb+vuik5UGY 5TsyLYdPur3TXm7XDBdmmyQVJjnJKYK9AQxj95KlXLVO38lcuQINBFRjzmoBEACyAxbvUEhd GDGNg0JhDdezyTdN8C9BFsdxyTLnSH31NRiyp1QtuxvcqGZjb2trDVuCbIzRrgMZLVgo3upr MIOx1CXEgmn23Zhh0EpdVHM8IKx9Z7V0r+rrpRWFE8/wQZngKYVi49PGoZj50ZEifEJ5qn/H Nsp2+Y+bTUjDdgWMATg9DiFMyv8fvoqgNsNyrrZTnSgoLzdxr89FGHZCoSoAK8gfgFHuO54B lI8QOfPDG9WDPJ66HCodjTlBEr/Cwq6GruxS5i2Y33YVqxvFvDa1tUtl+iJ2SWKS9kCai2DR 3BwVONJEYSDQaven/EHMlY1q8Vln3lGPsS11vSUK3QcNJjmrgYxH5KsVsf6PNRj9mp8Z1kIG qjRx08+nnyStWC0gZH6NrYyS9rpqH3j+hA2WcI7De51L4Rv9pFwzp161mvtc6eC/GxaiUGuH BNAVP0PY0fqvIC68p3rLIAW3f97uv4ce2RSQ7LbsPsimOeCo/5vgS6YQsj83E+AipPr09Caj 0hloj+hFoqiticNpmsxdWKoOsV0PftcQvBCCYuhKbZV9s5hjt9qn8CE86A5g5KqDf83Fxqm/ vXKgHNFHE5zgXGZnrmaf6resQzbvJHO0Fb0CcIohzrpPaL3YepcLDoCCgElGMGQjdCcSQ+Ci FCRl0Bvyj1YZUql+ZkptgGjikQARAQABiQIfBBgBAgAJBQJUY85qAhsMAAoJEGg1lTBwyZKw l4IQAIKHs/9po4spZDFyfDjunimEhVHqlUt7ggR1Hsl/tkvTSze8pI1P6dGp2XW6AnH1iayn yRcoyT0ZJ+Zmm4xAH1zqKjWplzqdb/dO28qk0bPso8+1oPO8oDhLm1+tY+cOvufXkBTm+whm +AyNTjaCRt6aSMnA/QHVGSJ8grrTJCoACVNhnXg/R0g90g8iV8Q+IBZyDkG0tBThaDdw1B2l asInUTeb9EiVfL/Zjdg5VWiF9LL7iS+9hTeVdR09vThQ/DhVbCNxVk+DtyBHsjOKifrVsYep WpRGBIAu3bK8eXtyvrw1igWTNs2wazJ71+0z2jMzbclKAyRHKU9JdN6Hkkgr2nPb561yjcB8 sIq1pFXKyO+nKy6SZYxOvHxCcjk2fkw6UmPU6/j/nQlj2lfOAgNVKuDLothIxzi8pndB8Jju KktE5HJqUUMXePkAYIxEQ0mMc8Po7tuXdejgPMwgP7x65xtfEqI0RuzbUioFltsp1jUaRwQZ MTsCeQDdjpgHsj+P2ZDeEKCbma4m6Ez/YWs4+zDm1X8uZDkZcfQlD9NldbKDJEXLIjYWo1PH hYepSffIWPyvBMBTW2W5FRjJ4vLRrJSUoEfJuPQ3vW9Y73foyo/qFoURHO48AinGPZ7PC7TF vUaNOTjKedrqHkaOcqB185ahG2had0xnFsDPlx5y Message-ID: Date: Tue, 21 Jan 2020 10:25:54 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <9f8b95d1-7b5f-d16d-2e5a-52f4b9cd0922@siemens.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 1/21/20 10:08 AM, Jan Kiszka wrote: >>> Would be interesting to see this. Ralf and tried something quickly, but >>> there seems to be a detail missing or wrong. >> >> Yep, we still can't reproduce the issue on an affected CPU, and don't >> know what we miss. > > I just realized that this thread stranded. Ralf told me that he got no > access to that reproducer which would be very valuable for us right now > to validate a static mitigation method in Jailhouse. Any chance to get > the access? I can't share mine. Although, if anyone else can share theirs, I can take a look and make sure that it covers the same cases that mine did. Does anyone else have a reproducer they can share?