RE: [Xen-ia64-devel] VTD is coming

["Xu, Anthony" <anthony.xu@xxxxxxxxx>]

>From: Tristan Gingold [mailto:tgingold@xxxxxxx]
>Sent: 2007年5月11日 13:05
>To: Xu, Anthony
>Cc: Isaku Yamahata; xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
>Subject: Re: [Xen-ia64-devel] VTD is coming
>BTW using VTd tables for p2m makes Xen intel-locked (because p2m tables are
>visible from the domains).

If domain only reads p2m table,
I think that is OK,
Definitely domain can't directly modify P2M table,
It needs to call hypercall to modify P2M table.

>Is VT-d the only IOMMU on ia64 ?
I have no idea.

>I don't know the reply but we should ask to vendors (HP, Fujitsu, Hitachi,
>NEC, Unisys...)
>
>Tristan.

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