Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754587AbcCZXcF (ORCPT ); Sat, 26 Mar 2016 19:32:05 -0400 Received: from out2-smtp.messagingengine.com ([66.111.4.26]:60135 "EHLO out2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754322AbcCZXcC (ORCPT ); Sat, 26 Mar 2016 19:32:02 -0400 X-Sasl-enc: ZCWTbSMQ+3dZUkv6t9sdh+ejfIvqTci5+pACDUKEZb5n 1459035120 Date: Sat, 26 Mar 2016 20:31:57 -0300 From: Henrique de Moraes Holschuh To: Borislav Petkov Cc: LKML , X86 ML Subject: Re: [PATCH 0/2] x86/microcode/amd: Do not overwrite specific patch levels Message-ID: <20160326233157.GA11398@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 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 Content-Length: 948 Lines: 22 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. > > Borislav Petkov (2): > x86/microcode/amd: Extract current patch level read to a function > x86/microcode/amd: Do not overwrite final patch levels This patchset looks like it is pretty much a requirement for any distro that ships AMD microcode updates... Maybe the two commits should be sent to -stable, now that they have seen lots of testing in mainline 4.4.x as well as SuSE kernels? -- "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