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

["Li, Xin B" <xin.b.li@xxxxxxxxx>]

>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?
>

EPT 2M page is already supported while VT-d 2M not, so for we have to
seperate the 2 guys if we want to use 2M page in EPT.
and of course we share the page tables if both sides use 4K pages.
-Xin

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