linux-kernel - Re: [PATCH v6 07/18] iommu: Implement reserved

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Message-ID: <20170106124816.GQ17255@8bytes.org>
Date:   Fri, 6 Jan 2017 13:48:16 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Auger Eric <eric.auger@...hat.com>
Cc:     eric.auger.pro@...il.com, christoffer.dall@...aro.org,
        marc.zyngier@....com, robin.murphy@....com,
        alex.williamson@...hat.com, will.deacon@....com,
        tglx@...utronix.de, jason@...edaemon.net,
        linux-arm-kernel@...ts.infradead.org, kvm@...r.kernel.org,
        drjones@...hat.com, linux-kernel@...r.kernel.org,
        pranav.sawargaonkar@...il.com, iommu@...ts.linux-foundation.org,
        punit.agrawal@....com, diana.craciun@....com, gpkulkarni@...il.com,
        shankerd@...eaurora.org, bharat.bhushan@....com,
        geethasowjanya.akula@...il.com
Subject: Re: [PATCH v6 07/18] iommu: Implement reserved_regions iommu-group
 sysfs file

On Fri, Jan 06, 2017 at 12:46:05PM +0100, Auger Eric wrote:
> On 06/01/2017 12:00, Joerg Roedel wrote:

> > I think it also makes sense to report the type of the reserved region.
> 
> What is the best practice in that case? Shall we put the type enum
> values as strings such as:
> - direct
> - nomap
> - msi
> 
> and document that in Documentation/ABI/testing/sysfs-kernel-iommu_groups

Yes, a string would be good. An probably 'reserved' is a better name
than nomap?


	Joerg