[Xen-users] Re: Unable to pass device to IOMMU

[Michael Maher <mmaher@xxxxxxxxxx>]

Hello,

I was wondering if anybody had any insight they could lend us on this?

Your help would be very much appreciated,


Many Thanks,
Michael




On Thu, 2010-09-16 at 18:44 +0100, Michael Maher wrote:
> Hello,
> 
>  
> 
> I’m hoping someone may be able to push us in the right direction. I’m
> trying to get one of our products to work with the current branch of
> Xen (4.0/4.0.0) but I’m hitting a problem.
> 
>  
> 
> We are currently using Xen 3.3.2 on a Sun Blade 600 chassis (with
> x6270 blades) this works great.
> 
>  
> 
> But when we upgrade to Xen 4.0/4.0.1 we get the following message when
> starting the DomU:
> 
>                 Device Cannot be passed to IOMMU
> 
>  
> 
> I understand from the release note that there were some changes made
> to the IOMMU/pciback pass-through in this release, does anyone have
> any details as to what might be going wrong?
> 
>  
> 
> We’re using SLES11/sp1 and I’ve tried with the Novell build and
> compiled it myself. I also have the latest firmware for the chassis
> and blade from Sun, all of which show the same problem.
> 
>  
> 
> Has anyone seen to same thing?
> 
> Any help would be greatly appreciated,
> 
>  
> 
>  
> 
> Many Thanks,
> 
> Michael
> 
> 
> Michael Maher
> 
> Adax Europe Ltd
> 
> mmaher@xxxxxxxxxx
> 
> 


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