buw20031220@xxxxxxxxxxxxxx wrote:
> Hello,
> I am desperately trying to get pci-passthrough to working.
> I want to pass a tg3 nic to domU.
>
> when booting domU I get a lot of messages:
> pcifront pci-0: pciback not responding!!!
If I understand your issue correctly I believe the following should at
least provide some explanation for the behavior you're experiencing.
All tg3 devices are a bit quirky and need extra handling to work with
Xen. Specifically, they require that certain non-standard parts of
their PCI configuration space be writable.
Try using a recent version of xen-unstable, which should have a patch
that alleviates the problem you're having, but be warned the fix leaves
something to be desired from a security perspective. There is
in-progress work on the pciback driver to address the security concerns
of the current fix. Stay tuned to the xen-devel list if interested.
If the problem persists on the newest xen-unstable please post a
description of the problem to xen-devel for greater visibility.
Cheers
-Chris
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