From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751091AbeCZAi1 (ORCPT ); Sun, 25 Mar 2018 20:38:27 -0400 Received: from mga06.intel.com ([134.134.136.31]:6982 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750832AbeCZAi0 (ORCPT ); Sun, 25 Mar 2018 20:38:26 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,362,1517904000"; d="scan'208";a="40544373" Subject: Re: [PATCH 0/3] iommu/vt-d: Global PASID name space To: David Woodhouse , Joerg Roedel References: <1521081501-30119-1-git-send-email-baolu.lu@linux.intel.com> Cc: ashok.raj@intel.com, sanjay.k.kumar@intel.com, jacob.jun.pan@intel.com, kevin.tian@intel.com, yi.l.liu@intel.com, yi.y.sun@intel.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org From: Lu Baolu Message-ID: <5AB840FD.8020600@linux.intel.com> Date: Mon, 26 Mar 2018 08:38:21 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 In-Reply-To: <1521081501-30119-1-git-send-email-baolu.lu@linux.intel.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Joerg, A gentle ping. :-) Any comments on this patch set? Best regards, Lu Baolu On 03/15/2018 10:38 AM, Lu Baolu wrote: > Hi, > > This patch series is trying to change the scope of PASID management > used in Intel IOMMU driver from per IOMMU to driver global. This is > required for some cases where current per-IOMMU PASID name space > doesn't work. For an example, one application (associated with one > PASID) might talk to two physical devices simultaneously where two > devices could reside behind two different IOMMU units. > > Best regards, > Lu Baolu > > Lu Baolu (3): > iommu/vt-d: Global PASID name space > iommu/vt-d: Decouple idr bond pointer from svm > iommu/vt-d: Use global PASID for SVM usage > > drivers/iommu/intel-iommu.c | 64 +++++++++++++++++++++++++++++++++++++++++++++ > drivers/iommu/intel-svm.c | 34 +++++++++++++----------- > include/linux/intel-iommu.h | 7 ++++- > 3 files changed, 89 insertions(+), 16 deletions(-) >