Re: [Xen-devel] grant table interface addition?

["Jan Beulich" <jbeulich@xxxxxxxxxx>]

>>> Keir Fraser <keir.fraser@xxxxxxxxxxxxx> 30.10.08 15:15 >>>
>On 30/10/08 14:06, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:
>> As to PAGE_IO, wouldn't it be appropriate to set this flag on pte-s created
>> with GNTMAP_device_map? Or is the name misleading me? I'm perhaps
>> confused by the fact that the use of this flag is not tied to granting iomem
>> pages...
>
>The idea was that this would grant-map pages into an iommu. Really it's not
>actually been used, but GNTMAP_device_map doesn't cause mappings to appear
>in host page tables.

It actually is being used in Solarflare's acceleration backend - what you say
makes me think this could be wrong then.

Jan


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