linux-kernel - RE: [RFC 01/13] iommu: Introduce bind_guest

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Message-ID: <AADFC41AFE54684AB9EE6CBC0274A5D1912F0BC2@SHSMSX101.ccr.corp.intel.com>
Date:   Wed, 5 Sep 2018 00:36:23 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Jean-Philippe Brucker <jean-philippe.brucker@....com>,
        Auger Eric <eric.auger@...hat.com>,
        "eric.auger.pro@...il.com" <eric.auger.pro@...il.com>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "kvmarm@...ts.cs.columbia.edu" <kvmarm@...ts.cs.columbia.edu>,
        "joro@...tes.org" <joro@...tes.org>,
        "alex.williamson@...hat.com" <alex.williamson@...hat.com>,
        "jacob.jun.pan@...ux.intel.com" <jacob.jun.pan@...ux.intel.com>,
        "yi.l.liu@...ux.intel.com" <yi.l.liu@...ux.intel.com>,
        Will Deacon <Will.Deacon@....com>,
        Robin Murphy <Robin.Murphy@....com>
CC:     Marc Zyngier <Marc.Zyngier@....com>,
        "peter.maydell@...aro.org" <peter.maydell@...aro.org>,
        Christoffer Dall <Christoffer.Dall@....com>
Subject: RE: [RFC 01/13] iommu: Introduce bind_guest_stage API

> From: Jean-Philippe Brucker [mailto:jean-philippe.brucker@....com]
> Sent: Tuesday, September 4, 2018 5:53 PM
> 
> On 04/09/2018 09:41, Auger Eric wrote:
> > I think the confusion comes from the different terminology used in VTD
> > and ARM SMMU spec.
> >
> > Your PASID table ~ ARM SMMU Context Descriptor (CD) table
> > Your Root Entry/Context Entry ~ ARM SMMU Stream Table Entry (STE)
> 
> In past discussions we used "PASID table (entry)" and "device context"
> respectively. For clarity we should probably stick to those names unless
> we discuss arch-specific patches
> 

yes, that is a good abstraction. let's try to use them in related discussions
and patch series.

Thanks
Kevin