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=-5.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 EC450C2D0CD for ; Tue, 17 Dec 2019 10:28:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CB71320716 for ; Tue, 17 Dec 2019 10:28:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726756AbfLQK2G (ORCPT ); Tue, 17 Dec 2019 05:28:06 -0500 Received: from 8bytes.org ([81.169.241.247]:57732 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725940AbfLQK2F (ORCPT ); Tue, 17 Dec 2019 05:28:05 -0500 Received: by theia.8bytes.org (Postfix, from userid 1000) id DF6FE286; Tue, 17 Dec 2019 11:28:03 +0100 (CET) Date: Tue, 17 Dec 2019 11:28:02 +0100 From: Joerg Roedel To: Lu Baolu Cc: David Woodhouse , ashok.raj@intel.com, jacob.jun.pan@intel.com, kevin.tian@intel.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Jerry Snitselaar , stable@vger.kernel.org Subject: Re: [PATCH 1/1] iommu/vt-d: Fix dmar pte read access not set error Message-ID: <20191217102802.GO8689@8bytes.org> References: <20191211014015.7898-1-baolu.lu@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191211014015.7898-1-baolu.lu@linux.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 11, 2019 at 09:40:15AM +0800, Lu Baolu wrote: > If the default DMA domain of a group doesn't fit a device, it > will still sit in the group but use a private identity domain. > When map/unmap/iova_to_phys come through iommu API, the driver > should still serve them, otherwise, other devices in the same > group will be impacted. Since identity domain has been mapped > with the whole available memory space and RMRRs, we don't need > to worry about the impact on it. > > Link: https://www.spinics.net/lists/iommu/msg40416.html > Cc: Jerry Snitselaar > Reported-by: Jerry Snitselaar > Fixes: 942067f1b6b97 ("iommu/vt-d: Identify default domains replaced with private") > Cc: stable@vger.kernel.org # v5.3+ > Signed-off-by: Lu Baolu > --- > drivers/iommu/intel-iommu.c | 8 -------- > 1 file changed, 8 deletions(-) Applied for v5.5, thanks.