Re: [Xen-users] amd-v -- passthrough supported?

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Mon, Jan 25, 2010 at 09:16:24AM -0800, 0bo0 wrote:
> In another thread (@xen-devel),
> 
> On Sun, Jan 24, 2010 at 5:44 PM, Weidong Han <weidong.han@xxxxxxxxx> wrote:
> > Pls refer to section 3.6.1 in VT-d spec.
> 
> Getting to that , reading @,
> 
>   http://wiki.xensource.com/xenwiki/VTdHowTo
> 
> I note,
> 
> "Caveat on Conventional PCI Device Pass-Through
> 
>     * The VT-d specification states that all conventional PCI devices
> behind a PCIe-to-PCI bridge have to be assigned to the same domain.
>     * PCIe devices do not have this restriction. "
> 
> but, at that Wiki page, there's *no* mention of AMD -- at all.
> 
> *Are*AMDs chipsets, and AMD-V, 'supported' by Xen ?
> 
> if so, is there a similar doc, listing compatible/support AMD
> platforms? or, at least, some clarification as to whether everything
> that's documented for VT-d (parameters, exceptions, etc) holds true
> for AMD as well?
> 

I'm not sure if AMD even has IOMMU capable hardware out yet? 

I think recently there was a patch to enable AMD IOMMU with Xen,
on "800" series chipsets.

-- Pasi


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