Yuji virtualized more capabilities to guest in Xen Qemu. I think your tg3 driver can work in Xen guest with VT-d passthrough. If anyone interests, he/she can port the code from Xen Qemu to KVM Qemu. Regards, Weidong Alex Williamson wrote: > On Wed, May 6, 2009 at 11:31 AM, Nadolski, Ed <Ed.Nadolski@xxxxxxx> > wrote: >> Hi, >> >> I am running the KVM kernel & userspace downloaded on 4/24 with >> Fedora 10 host Linux on a Dell T7400 Xeon with VT-x and VT-d >> enabled. The T7400 has an onboard Broadcom NIC, but when I use VT-d >> to assign this NIC to a Fedora 10 guest, the NIC's tg3 driver in the >> guest aborts because it cannot find the PM Capability in the >> device's PCI config space. ... >> So has anyone else seen this, and what is the right way to address >> it? It's not good to simply pass thru certain device Capabilities >> if they cannot be properly handled by KVM/QEMU, but OTOH the >> unmodified guest OS drivers should not break because they were >> written to expect certain Capabilities. Is there any plan to add >> support for these missing Capabilities? > > Yes, I've seen this with bnx2 devices. For a Linux guest, it's a > fairly trivial change to the driver to not depend on these > capabilities, but it would be far more compatible with existing driver > code out there to make an attempt to support support them in KVM. > AFAIK, it's not being working on yet. > > Alex -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
