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[209.132.180.67]) by mx.google.com with ESMTP id k63si364963pfh.372.2018.03.19.18.00.36; Mon, 19 Mar 2018 18:00:51 -0700 (PDT) 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031808AbeCSS3L (ORCPT + 99 others); Mon, 19 Mar 2018 14:29:11 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:52458 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031748AbeCSS2y (ORCPT ); Mon, 19 Mar 2018 14:28:54 -0400 Received: from localhost (LFbn-1-12247-202.w90-92.abo.wanadoo.fr [90.92.61.202]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 9A63610A7; Mon, 19 Mar 2018 18:28:53 +0000 (UTC) From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alexander Sergeyev , Thomas Gleixner , Jia Zhang , Kyle Huey , David Woodhouse Subject: [PATCH 4.9 219/241] x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist Date: Mon, 19 Mar 2018 19:08:04 +0100 Message-Id: <20180319180800.241523303@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180319180751.172155436@linuxfoundation.org> References: <20180319180751.172155436@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alexander Sergeyev commit e3b3121fa8da94cb20f9e0c64ab7981ae47fd085 upstream. In accordance with Intel's microcode revision guidance from March 6 MCU rev 0xc2 is cleared on both Skylake H/S and Skylake Xeon E3 processors that share CPUID 506E3. Signed-off-by: Alexander Sergeyev Signed-off-by: Thomas Gleixner Cc: Jia Zhang Cc: Greg Kroah-Hartman Cc: Kyle Huey Cc: David Woodhouse Link: https://lkml.kernel.org/r/20180313193856.GA8580@localhost.localdomain Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/cpu/intel.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -64,7 +64,7 @@ void check_mpx_erratum(struct cpuinfo_x8 /* * Early microcode releases for the Spectre v2 mitigation were broken. * Information taken from; - * - https://newsroom.intel.com/wp-content/uploads/sites/11/2018/01/microcode-update-guidance.pdf + * - https://newsroom.intel.com/wp-content/uploads/sites/11/2018/03/microcode-update-guidance.pdf * - https://kb.vmware.com/s/article/52345 * - Microcode revisions observed in the wild * - Release note from 20180108 microcode release @@ -82,7 +82,6 @@ static const struct sku_microcode spectr { INTEL_FAM6_KABYLAKE_MOBILE, 0x09, 0x80 }, { INTEL_FAM6_SKYLAKE_X, 0x03, 0x0100013e }, { INTEL_FAM6_SKYLAKE_X, 0x04, 0x0200003c }, - { INTEL_FAM6_SKYLAKE_DESKTOP, 0x03, 0xc2 }, { INTEL_FAM6_BROADWELL_CORE, 0x04, 0x28 }, { INTEL_FAM6_BROADWELL_GT3E, 0x01, 0x1b }, { INTEL_FAM6_BROADWELL_XEON_D, 0x02, 0x14 },