Re: [libvirt] [PATCH 4/3] conf: restrict expander buses to connect only to a root bus

> One thing that's not quite clear to me about pcie-expander-bus: > according to the code and comment, it has a single slot that > can accomodate either a pcie-root-port or a dmi-to-pci-bridge. >  > It seems like that would limit its usefulness quite a lot... > I would expect at least a pcie-switch-upstream-port to be > usable as well. Marcel, can you confirm either way?   You can't plug a pcie-switch-upstream-port directly into a pcie-expander  bus (see https://bugzilla.redhat.com/show_bug.cgi?id=1361172 which was  the subject of patch 2)   You can however plug in a pcie-root-port, and then connect a  pcie-switch-upstream-port into the pcie-root-port. (and then of course  plug a bunch of pcie-switch-downstream-ports into the upstream-port, and  devices into the downstream ports).

So does this get ACK with the changes/explanations above? Or do you want  me to re-send it?