From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752689AbbGIPDy (ORCPT ); Thu, 9 Jul 2015 11:03:54 -0400 Received: from out2-smtp.messagingengine.com ([66.111.4.26]:38487 "EHLO out2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751164AbbGIPDq (ORCPT ); Thu, 9 Jul 2015 11:03:46 -0400 X-Sasl-enc: zOs7QAZKksEPOLUaNT+VSf87HsGdQe6pqPMWK90pToOm 1436454224 Date: Thu, 9 Jul 2015 12:03:41 -0300 From: Henrique de Moraes Holschuh To: Borislav Petkov Cc: LKML , Aravind Gopalakrishnan , X86 ML Subject: Re: [PATCH 0/2] x86/microcode/amd: Do not overwrite specific patch levels Message-ID: <20150709150341.GB23766@khazad-dum.debian.net> References: <1435781656-1890-1-git-send-email-bp@alien8.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1435781656-1890-1-git-send-email-bp@alien8.de> 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/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 01 Jul 2015, Borislav Petkov wrote: > Certain patch levels supplied by the BIOS should not be upgraded and > overwritten by the microcode loader because doing so leaves the system > dead in the water. > > The two below provide for filtering out those levels and avoiding the > update, thereby making those patch levels final. Is there any way to notify the user that 'processor microcode updates are not available on this system except through a firmware update' ? -- "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