On Thu, Nov 18, 2010 at 04:09:34PM +0900, Isaku Yamahata wrote: > 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.
Not sure I understand. pci bus numbering should be completely up to the guest. > In fact, it's not so strong requirement. > Possibly I would have to dig into dsdt. Yes, some guest-side technology like acpi might be needed. > -- > yamahata
