From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754327AbeBGUFZ (ORCPT ); Wed, 7 Feb 2018 15:05:25 -0500 Received: from mail-wm0-f48.google.com ([74.125.82.48]:55886 "EHLO mail-wm0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753721AbeBGUFY (ORCPT ); Wed, 7 Feb 2018 15:05:24 -0500 X-Google-Smtp-Source: AH8x225zwJ5PdHzUohmB39NNlF3kGcFxlgv8P7oYeb6HwPe4uWJJ/Em8EPKqloZ9ImH/k9MeSOVvsA== Message-ID: <1518033920.1872.23.camel@redhat.com> Subject: Re: [PATCH] x86/microcode/intel: print previous microcode revision during early update From: Stanislav Kozina To: Borislav Petkov Cc: Petr Oros , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, linux-kernel@vger.kernel.org Date: Wed, 07 Feb 2018 21:05:20 +0100 In-Reply-To: <20180207152158.GB8698@pd.tnic> References: <20180126103451.16863-1-poros@redhat.com> <20180126104109.slxxoq4vkqytqjxd@pd.tnic> <1516967135.2801.1.camel@redhat.com> <20180126115800.bvqrzik2f3hmmiah@pd.tnic> <1516974600.2801.10.camel@redhat.com> <20180126144918.7jiaezmdhjsiman5@pd.tnic> <1518012133.13585.13.camel@redhat.com> <20180207152158.GB8698@pd.tnic> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.2 (3.26.2-1.fc27) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Now let's take a step back: you don't really need the previous revision > in the spectre case! Not really. I understand all your points. We submitted the patch to ease debugging of microcode issues where the systems impacted are not yet identified and thus can't be blacklisted. Best Regards, -Stanislav