On Thu, Nov 18, 2010 at 08:46:43AM +0200, Michael S. Tsirkin wrote: > > What is missing for multiple pci buses is > > - a new PC machine description which has multiple pci buses > > My Q35 chipset patch will provide this. > > IMHO, what we really need is a way to specify bridges > through qdev. Not a machine with a hard-coded buses.
Yes, it's long-term goal. > The firmware paths used by Gleb's code might supply > a good syntax to specify topology. > > > - a simple P2P bridge emulator for pc architecture > > - seabios support > > - DSDT for a new machine which has multi pci buses(IRQ routing) > > - pv pci bus numbering > > Interesting. What's the motivation for this? For hot-plugging pci-to-pci bridge. It requires sparse pci bus numbering. In fact, it's not so strong requirement. Possibly I would have to dig into dsdt. -- yamahata
