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=-5.2 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 29015C3F2D1 for ; Mon, 2 Mar 2020 16:08:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0A93E222C4 for ; Mon, 2 Mar 2020 16:08:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727304AbgCBQIT (ORCPT ); Mon, 2 Mar 2020 11:08:19 -0500 Received: from 8bytes.org ([81.169.241.247]:49604 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726988AbgCBQIS (ORCPT ); Mon, 2 Mar 2020 11:08:18 -0500 Received: by theia.8bytes.org (Postfix, from userid 1000) id 013665BC; Mon, 2 Mar 2020 17:08:16 +0100 (CET) Date: Mon, 2 Mar 2020 17:08:14 +0100 From: Joerg Roedel To: Yonghyun Hwang Cc: David Woodhouse , Lu Baolu , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Havard Skinnemoen , Deepa Dinamani , Moritz Fischer , stable@vger.kernel.org Subject: Re: [PATCH v3] iommu/vt-d: Fix a bug in intel_iommu_iova_to_phys() for huge page Message-ID: <20200302160813.GB7829@8bytes.org> References: <20200226203006.51567-1-yonghyun@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200226203006.51567-1-yonghyun@google.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, Feb 26, 2020 at 12:30:06PM -0800, Yonghyun Hwang wrote: > intel_iommu_iova_to_phys() has a bug when it translates an IOVA for a huge > page onto its corresponding physical address. This commit fixes the bug by > accomodating the level of page entry for the IOVA and adds IOVA's lower > address to the physical address. > > Cc: > Acked-by: Lu Baolu > Reviewed-by: Moritz Fischer > Signed-off-by: Yonghyun Hwang Applied with Fixes tag: Fixes: 3871794642579 ("VT-d: Changes to support KVM")