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Re: [Xen-devel] [PATCH v5] xen/iommu: smmu: Advertise when the SMMU support coherent table walk

To: Julien Grall <julien.grall@xxxxxxxxxx>
From: Ian Campbell <ian.campbell@xxxxxxxxxx>
Date: Mon, 2 Mar 2015 17:04:28 +0000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, stefano.stabellini@xxxxxxxxxx, tim@xxxxxxx
Delivery-date: Mon, 02 Mar 2015 17:05:38 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Mon, 2015-03-02 at 15:42 +0000, Julien Grall wrote:
>     I've just noticed that the support on the previous driver (i.e in
>     Xen 4.5) may incorrectly expose this feature when all the SMMUs is
>     not supporting coherent table walk.
> 
>     I'm not sure, if I should send a patch for it.

Probably not a lot of point given the dearth of hardware where it would
actually matter?

Ian.


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