On Sun, Jan 11, 2009 at 01:12:42AM +0100, Harald Braumann wrote: > Hi! > > (please CC me, as I'm not subscribed) > > I try to give the guest (Windows XP) direct access to one of the > graphics adaptors. However, the driver in the guest always complains: > "Unable to map required address ranges for graphics card." > > Any idea what the problem could be? Attached is a kvm log with > DEVICE_ASSIGNMENT_DEBUG = 1. > > This is kvm-82 on AMD64 with kernel 2.6.28. >
Hi Harry I think we at least have one issue here: currently we can't support graphics card assignment... Graphics card is more complex than others due to video bios we must support. So it's not mature now (for both KVM and Xen). Please wait for our future releases(though I have no idea when it would be supported, maybe several monthes or longer... :( ). BTW: We had some experiment to assigned graphics card with Intel VT-d engine, finally it basicly works but need some dirty hack. And we didn't put much effort on it later. And for AMD iommu side, I think you can ask Joerg. -- regards Yang, Sheng |Intel Opensource Technology Center -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
