Re: [Xen-devel] [VTD-NEO][patch 5/6] Intel VT-d/Neocleus 1:1 mregedcode for PCI passthrough

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 18/9/07 21:41, "Kay, Allen M" <allen.m.kay@xxxxxxxxx> wrote:

> I was checking for vtd_enabled in common/page_alloc.c.  What is the
> proper place to define this?   I will defer submission of common changes
> until we reach an agreement on this.

Since this initial patchset is about translation (for HVM guests) rather
than security, you could have a global iommu table for all PV guests that
1:1 maps everything. That can be set up at start-of-day with no common-code
hooks.

 -- Keir



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