[SeaBIOS] Pci express passthough in KVM

Jean-Christophe Ducom jcducom at gmail.com
Fri Jan 29 21:43:46 CET 2010

Anthony and Kevin-
Seems that the culprit was coming from libvirt. It runs fine when all 
operations are done "by hand".
Thank you so much for your feedback
Good weekend

Anthony Liguori wrote:
> On 01/28/2010 05:40 PM, Kevin O'Connor wrote:
>> On Thu, Jan 28, 2010 at 05:18:00PM -0500, Jean-Christophe Ducom wrote:
>>> Dear Kevin-
>>> Sorry to bother you but I have a quick question.
>>> I am trying to attach a pci express Infiniband card to a guest VM via
>>> KVM (Fedora Core12 version kvm/qemu still uses pcbios).
>>> Unfortunately it fails. I suspect (please correct me if I'm wrong)
>>> it's due to the lack of PCIexpress support in the bios as mentioned
>>> in the talk of Isaku Yamahata and Akio Takebe during last Xen
>>> summit.
>>> If so, would seabios fix it?
>>> Thank you for your time
>>> Jean-Christophe Ducom
>> I don't know.  I think you need to ask the KVM folks.
> Yes, please send your query to kvm at vger.kernel.org.
> There are a lot of reasons passthrough can fail.  It's usually not going 
> to be the firmware.
> Regards,
> Anthony Liguori
>> -Kevin
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