Received: by 2002:ac0:a5a6:0:0:0:0:0 with SMTP id m35-v6csp95006imm; Wed, 5 Sep 2018 19:29:35 -0700 (PDT) X-Google-Smtp-Source: ANB0VdY/gddBftCVoFkvma7ndFapySuhnilkJFG3+3zHJkZ+vLreoAoL+yPBbROl9rrPY7Fjaia1 X-Received: by 2002:a62:d44a:: with SMTP id u10-v6mr661715pfl.144.1536200975531; Wed, 05 Sep 2018 19:29:35 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1536200975; cv=none; d=google.com; s=arc-20160816; b=ft9K/GnUfBKoa1LsY9nM7aFpgGYAzFTQYz3jM0aLOVD2365Zp0AnXhShD1pQ74uqtm yR6TS/C9UnuP41Sx7ODlogPUBN86BEdxNgIMDddS5FEVBTMTwcUrs+8EuZjhG7JDWh9F VsSV4n6YcgSMUcrglZb4SPQhDIvtjUdD9/lWmwf3fzdO9/B9rr+0A8HCJt7pzqohzV3X NaSkB+Oesih6fMKiUintPpLqpjut0884aVNWINcYuwP9wbH60V+KdX+qCUIFYcBn42q7 GmOPnkHQEvX2eGBk0D5i7QfBcA3JFFf0uPOWKaIvWSY/ztqzNI6eS81W+wer3up5pquD GdVw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:to:subject:cc; bh=7k1munKmTSCdkEWXN2N0as7vzKtZV4Zb7udpnpX7hyM=; b=1J8zlk/QEHRTv3iN2xmF+BpQDCTodGjYuIzU8TQlqxCG2m/0at1/TzeI64FrzaY0BF pmMkLt5KGE/PnnKkBovwlxD3cUGaC1IVm49YtrMIRbWx/6ABtDGm5B1a/qLcrSUA92Pw I2YKmLQwXfRUVwM1pA+gnnx6++QCFmnSouC41N7TeyEYc9M1wSo6eToO0+zKw1CVCL/S h0wJ8usiPPuOI4QKofmeC+z2XzZ4Frj0qisxAl8F/xfniBbUdEQv6jyzhrDOacuhsae5 KcJQRFZ6nha7E/aK5t/vu8CDFPT2jhIGii3TXG10omk+y+QE4nu2ok7BDda1FcxY3QTN d7gg== ARC-Authentication-Results: i=1; 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=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id n2-v6si3606471plp.276.2018.09.05.19.29.15; Wed, 05 Sep 2018 19:29:35 -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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726443AbeIFHA1 (ORCPT + 99 others); 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