Re: [Xen-users] pci passthrough and svm

[Paul Schulze <avlex@xxxxxxx>]

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Hi Javier,

As far as I know, there are no AMD CPUs with an IOMMU available (did  
quite a bit of research on that after I bought my AMD system). It  
might be possible to do something similar with the current processor  
features and some software, but I doubt anyone would want to try,  
because it would potentially hit performance very hard.
The reason why you might think AMD CPUs have an IOMMU may be because  
they announced the feature first (as far as I know), but never made  
good on that "promise" and Intel beat them to it. After taking over  
ATI, I think they shifted to developing a combined platform first.  
Now they seem to be planning to release CPUs, supporting that  
feature, in early 2009, but I believe these will be high powered  
server CPUs (which makes them more or less useless for my setups).
Cheers,


Paul.

- --
Paul Schulze
Mail: avlex  gmx  net ($1@$2.$3)
Public Key: http://solaris-net.dyndns.org/keys/key_avlex.asc

"Making mistakes is human,
but to really screw things up, you need Computers"



Am 13.09.2008 um 17:24 schrieb Javier Guerra Giraldez:

> On Friday 12 September 2008, Mike Power wrote:
> > I can not pass through PCI with out VT-d or equivalent
> > AMD doesn't have a VT-d equivalent out yet
> i thought AMD's IOMMU predated Intel's VT-d.  am i missing something?
>
> or maybe the respective code isn't as mature?
>
> > You must use VT-d to pass through PCI devices to an hvm
> > Windows must be run under hvm.
> >
> > Hence I can not pass PCI devices through to Windows.
> ah, the joys of closed software and poorly designed hardware...
>
> --
> Javier
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
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