From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757026AbaIRAsy (ORCPT ); Wed, 17 Sep 2014 20:48:54 -0400 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:40638 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752914AbaIRAsx (ORCPT ); Wed, 17 Sep 2014 20:48:53 -0400 X-Sasl-enc: X1opG3U5igcZwMxZClErMqSEXm6CILuswe8hO3jytskb 1411001332 Date: Wed, 17 Sep 2014 21:48:41 -0300 From: Henrique de Moraes Holschuh To: linux-kernel@vger.kernel.org Cc: Borislav Petkov , H Peter Anvin Subject: Re: [PATCH 7/8] x86, microcode, intel: guard against misaligned microcode data Message-ID: <20140918004841.GB18652@khazad-dum.debian.net> References: <1410197875-19252-1-git-send-email-hmh@hmh.eng.br> <1410197875-19252-8-git-send-email-hmh@hmh.eng.br> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1410197875-19252-8-git-send-email-hmh@hmh.eng.br> X-GPG-Fingerprint1: 4096R/39CB4807 C467 A717 507B BAFE D3C1 6092 0BD9 E811 39CB 4807 X-GPG-Fingerprint2: 1024D/1CDB0FE3 5422 5C61 F6B7 06FB 7E04 3738 EE25 DE3F 1CDB 0FE3 User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 08 Sep 2014, Henrique de Moraes Holschuh wrote: > Change the early microcode driver to make a temporary copy of a portion > of the microcode header, and move the microcode data backwards > (overwriting the header) to a suitably aligned position, right before > issuing the microcode update WRMSR. This one is missing a big thank you to Bill Davidsen for the "overwrite the header" idea. Once I get some comments about this series, I will respin this one and credit him. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh