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[209.132.180.67]) by mx.google.com with ESMTP id 201si248598pfu.37.2018.02.07.12.06.09; Wed, 07 Feb 2018 12:06:24 -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=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754281AbeBGUFZ (ORCPT + 99 others); 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 Received: by mail-wm0-f48.google.com with SMTP id 143so5388753wma.5 for ; Wed, 07 Feb 2018 12:05:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:mime-version:content-transfer-encoding; bh=yTXf/aB1toMl/211gEeMTA+Poy/cGuJII16bQPejPtY=; b=HCTzP2HPD759oKF+JPAHgSfBBkN+FJsbLnQhYd1ENKBKuzqeTLuiVzrqfrhCPP4VXM MANdFVGh0eLs9ld1CccFt5kb7k62WLOnbUyxjecqrGa+6fgF/hbo9VdsjLV32CMbsOrp hUcGvNWO6clLl1qNXPuUekCH9VpDOt5zCRS+KFXkhu/46WEjd+OaCnPWUueLfMOdq8JU MJv2ddi53rLOzih5C5Q7oCve+McflOuIilx8luPHnPG8DNeiGlENgyDJ4XiCcSnqLYCp qyxvAdnRaPi3uq2W6pphMxJwpO3vplZBgzgqCfLbAWTr1qkG3kc5TEN0INthg4g2JCCs LITQ== X-Gm-Message-State: APf1xPCNDh4ANqiQzCHjwWxetghvR/SHTHxdrWa1pw3R2bOTvHvyV9ZA y7V915ENNVb29p6Th0UwjPZcKw== X-Received: by 10.28.28.139 with SMTP id c133mr5525374wmc.144.1518033923061; Wed, 07 Feb 2018 12:05:23 -0800 (PST) Received: from ibm-p8-01-fsp.mgmt.pnr.lab.eng.rdu2.redhat.com ([176.74.136.197]) by smtp.gmail.com with ESMTPSA id p29sm3941917wmf.9.2018.02.07.12.05.21 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 07 Feb 2018 12:05:22 -0800 (PST) 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 Precedence: bulk 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