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[Qemu-devel] Re: Hitting 29 NIC limit
From: |
Isaku Yamahata |
Subject: |
[Qemu-devel] Re: Hitting 29 NIC limit |
Date: |
Thu, 18 Nov 2010 16:09:34 +0900 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
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