linux-kernel - Re: [PATCH v5 02/12] iommu/vt-d: Manage scalalble mode PASID tables

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 5 Dec 2018 16:47:10 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     "Liu, Yi L" <yi.l.liu@...el.com>
Cc:     Lu Baolu <baolu.lu@...ux.intel.com>,
        David Woodhouse <dwmw2@...radead.org>,
        "Raj, Ashok" <ashok.raj@...el.com>,
        "Kumar, Sanjay K" <sanjay.k.kumar@...el.com>,
        "Pan, Jacob jun" <jacob.jun.pan@...el.com>,
        "Tian, Kevin" <kevin.tian@...el.com>,
        "Sun, Yi Y" <yi.y.sun@...el.com>,
        "peterx@...hat.com" <peterx@...hat.com>,
        Jean-Philippe Brucker <jean-philippe.brucker@....com>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: Re: [PATCH v5 02/12] iommu/vt-d: Manage scalalble mode PASID tables

On Mon, Dec 03, 2018 at 05:23:40PM +0000, Liu, Yi L wrote:
> So for a device without PASID support, we need to at least to have a PASID
> entry so that its DMA request (without pasid) can be translated. Thus a PASID
> table is needed for such devices.

That makes sense, thanks for the explanation.


	Joerg