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

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Message-ID: <58418b7b-44f4-9659-98df-b5f24bed3e15@arm.com>
Date:   Mon, 3 Sep 2018 13:19:31 +0100
From:   Jean-Philippe Brucker <jean-philippe.brucker@....com>
To:     Auger Eric <eric.auger@...hat.com>, eric.auger.pro@...il.com,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, kvmarm@...ts.cs.columbia.edu, joro@...tes.org,
        alex.williamson@...hat.com, jacob.jun.pan@...ux.intel.com,
        yi.l.liu@...ux.intel.com, will.deacon@....com, robin.murphy@....com
Cc:     marc.zyngier@....com, peter.maydell@...aro.org,
        christoffer.dall@....com
Subject: Re: [RFC 01/13] iommu: Introduce bind_guest_stage API

On 31/08/2018 14:52, Auger Eric wrote:
> Do we agree here we can get rid of the struct device * parameter?

That's fine by me, in my opinion the bind operation should only be on
the domain, like map/unmap. For the invalidation however, I think we
need to keep the device as an optional parameter, because the guest may
want to invalidate the ATC (DTLB) of a single device.

Thanks,
Jean