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RE: [Xen-users] Easiest OS to use for xen 4.0?

  • To: "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Beasley, Julien" <Julien.Beasley@xxxxxxx>
  • Date: Thu, 25 Aug 2011 14:35:33 -0500
  • Accept-language: en-US
  • Acceptlanguage: en-US
  • Delivery-date: Thu, 25 Aug 2011 12:38:11 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: Acxi09+81nfQi52vSNqQvpGs8gb2HAAcWeiQAAYDTgA=
  • Thread-topic: [Xen-users] Easiest OS to use for xen 4.0?

The reason I need Xen 4 specifically is that I need to use PCI-passthrough from 
graphics card with multiple GPUs -- from 

        If you want to manually override this in Xen 4.0.0 or newer you can 
specify "pci-passthrough-strict-check no" in /etc/xen/xend-config.sxp, and 
after restarting xend passthru code won't give this error anymore. In some 
(many?) cases PCI passthru can work after this change.

So it seems this is only supported in Xen 4. So let me ask the question again, 
now that I understand my own requirements better :)

What is the easiest OS to use for XEN 4 dom0? 

I've also been experimenting with XCP, which has worked great so far, but the 
problem I'm having is setting the PCI-passthrough from the snippet above. The 
configuration is different in XCP than in Xen, there's no xend-config.sxp to 
modify (at least not that I've found). So I'm okay with *either* a dom0 that 
supports Xen 4 (OpenSuSE was not good for this as the networking didnât work 
out of the box), or a way to configure XCP to do PCI-passthrough as per the 
snippet above.

Any thoughts?

Thank you!


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