[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Questions about direct hardware access, DMA, etc
> All the AMD and Intel passthru support for HVM guests is in the main tree. > The Neocleus stuff is in direct-io.hg. The iommu.hg tree is not directly > relevant to the passthru work for HVM guests. Thanks guys. Just so I'm clear, the current main tree supports passing through DMA-using devices to a DomU via Intel VT-d? Is this controlled by some new configuration file parameters? >From what I've just read VT-d chipsets have been available since a few months ago, do you know if they are in any off-the-shelf machines yet, like something I could buy from Dell or whoever? What have Xen developers been using to develop support for VT-d? (I know this isn't a completely Xen-specific question but I'm not a hardware expert so I'm a bit naive about this kind of thing...) And finally a similar question for AMD's IOMMU...you said there was support for AMD IOMMU/passthru...does that mean support for a chipset implementing the AMD IOMMU spec? Do any such chipsets even exist yet? Or do you mean using the GART as an IOMMU? Thanks, Dave _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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