Re: [PATCH] Add I/O hypercalls for i386 paravirt

Chris Wright
2007-08-22T22:21:29Z

* James Courtier-Dutton (James@superbug.co.uk) wrote:
> If one could directly expose a device to the guest, this feature could
> be extremely useful for me.
> Is it possible? How would it manage to handle the DMA bus mastering?

Yes it's possible (Xen supports pci pass through). Without an IOMMU
(like Intel VT-d or AMD IOMMU) it's not DMA safe.

thanks,
-chris