RE: [Xen-devel] [PATCH] [VTD] Separate VT-d page table from P2M table

["Han, Weidong" <weidong.han@xxxxxxxxx>]

Keir Fraser wrote:
> On 22/4/08 13:17, "Han, Weidong" <weidong.han@xxxxxxxxx> wrote:
> 
>>> Are you saying that the VT-d 2MB page format is different from the
>>> EPT 2MB page format? Or that VTd does not support 2MB pages?
>>> 
>> 
>> Now VTd does not support 2MB pages.
> 
> Then don't allow EPT 2MB mappings for domains which have passthru
> devices? 
> 

No, EPT is 2MB, VT-d page table is 4KB.

Randy (Weidong)


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