Re: [Xen-users] AMD's VT for chipsets

[Gregory Gee <gregory.gee@xxxxxxxxxxxx>]

Thorolf Godawa wrote:
> Hi,
>
> > I'm not sure if it's part of the translation or some other sort of
> > misunderstanding, but chipsets (non-processor components) are not
> > necessary for the AMD-V technology (formerly Pacifica) to operate
> I think he means s.th. related to the problem of the virtualisation of 
> the i/o that the AMD-CPUs should do better than the first 
> Intel-implementation of VT.
> AMD calls this "AMD I/O Virtualization Technology (IOMMU) 
> Specification", you find a PDF here: 
> http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/34434.pdf 
>
> The "Intel Virtualization Technology for Directed I/O (VTd)" should be 
> implemented in a later version of Intel-VT (see PDF: 
> ftp://download.intel.com/technology/computing/vptech/Intel(r)_VT_for_Direct_IO.pdf 
> ).
> But actually I don't know the status of this technique too and if 
> there are really advantages for the user right now!
 Wouldn't this allow PCI pass-through for SVM which isn't possible 
today?  I find PCI pas-through really useful but I can't use it for 
Windows guest in SVM.
Greg


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