It's probably an oversight.
 -- Keir
On 13/01/2010 22:00, "Justin T. Gibbs" <gibbs@xxxxxxxxxxx> wrote:
> Xen 4.0 recently added support for grant table mappings in the HVM P2M
> tables.
> The current code explicitly avoids adding an IOMMU mapping in this case.
> Is this an oversight or is there an architectural reason that the IOMMU is
> not updated? This seems to be the last piece needed to allow HVM driver
> domains with PCI pass-thru devices to function without extra memory copies.
>
> Thanks,
> Justin
>
>
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