From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E678C43334 for ; Thu, 6 Sep 2018 02:27:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DCE5B2083E for ; Thu, 6 Sep 2018 02:27:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DCE5B2083E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726456AbeIFHA1 (ORCPT ); Thu, 6 Sep 2018 03:00:27 -0400 Received: from mga02.intel.com ([134.134.136.20]:64542 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725937AbeIFHA0 (ORCPT ); Thu, 6 Sep 2018 03:00:26 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Sep 2018 19:27:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,334,1531810800"; d="scan'208";a="68738711" Received: from allen-box.sh.intel.com (HELO [10.239.161.122]) ([10.239.161.122]) by fmsmga008.fm.intel.com with ESMTP; 05 Sep 2018 19:27:00 -0700 Cc: baolu.lu@linux.intel.com, "Raj, Ashok" , "Kumar, Sanjay K" , "Pan, Jacob jun" , "Liu, Yi L" , "Sun, Yi Y" , "peterx@redhat.com" , Jean-Philippe Brucker , "iommu@lists.linux-foundation.org" , "linux-kernel@vger.kernel.org" , Jacob Pan Subject: Re: [PATCH v2 01/12] iommu/vt-d: Enumerate the scalable mode capability To: "Tian, Kevin" , Joerg Roedel , David Woodhouse References: <20180830013524.28743-1-baolu.lu@linux.intel.com> <20180830013524.28743-2-baolu.lu@linux.intel.com> From: Lu Baolu Message-ID: <43811e92-f3d4-82a7-87a7-f5bcbf9a13f4@linux.intel.com> Date: Thu, 6 Sep 2018 10:25:56 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 09/06/2018 09:55 AM, Tian, Kevin wrote: >> From: Lu Baolu [mailto:baolu.lu@linux.intel.com] >> Sent: Thursday, August 30, 2018 9:35 AM >> >> The Intel vt-d spec rev3.0 introduces a new translation >> mode called scalable mode, which enables PASID-granular >> translations for first level, second level, nested and >> pass-through modes. At the same time, the previous >> Extended Context (ECS) mode is deprecated (no production >> ever implements ECS). >> >> This patch adds enumeration for Scalable Mode and removes >> the deprecated ECS enumeration. It provides a boot time >> option to disable scalable mode even hardware claims to >> support it. >> >> Cc: Ashok Raj >> Cc: Jacob Pan >> Cc: Kevin Tian >> Cc: Liu Yi L >> Signed-off-by: Sanjay Kumar >> Signed-off-by: Lu Baolu >> Reviewed-by: Ashok Raj > > Reviewed-by: Kevin Tian > Thank you, Kevin. Best regards, Lu Baolu