linux-kernel - Re: [PATCH v3] iommu/vt-d: Fix a bug in intel_iommu_iova_to

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Message-ID: <20200302160813.GB7829@8bytes.org>
Date:   Mon, 2 Mar 2020 17:08:14 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Yonghyun Hwang <yonghyun@...gle.com>
Cc:     David Woodhouse <dwmw2@...radead.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Havard Skinnemoen <hskinnemoen@...gle.com>,
        Deepa Dinamani <deepadinamani@...gle.com>,
        Moritz Fischer <mdf@...nel.org>, stable@...r.kernel.org
Subject: Re: [PATCH v3] iommu/vt-d: Fix a bug in intel_iommu_iova_to_phys()
 for huge page

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: <stable@...r.kernel.org>
> Acked-by: Lu Baolu <baolu.lu@...ux.intel.com>
> Reviewed-by: Moritz Fischer <mdf@...nel.org>
> Signed-off-by: Yonghyun Hwang <yonghyun@...gle.com>

Applied with Fixes tag:

Fixes: 3871794642579 ("VT-d: Changes to support KVM")