Re: [Qemu-devel] KVM call minutes for Feb 8

[Anthony Liguori]

On 02/10/2011 02:00 PM, Avi Kivity wrote:
> On 02/10/2011 02:51 PM, Anthony Liguori wrote:
> > On 02/10/2011 12:13 PM, Gleb Natapov wrote:
> > > Which spec? Even in this discussion we completely mixed different
> > > things. 440FX is not a chipset.
> >
> > Yes, it is.  It's a single silicon package with a defined pinout.  If 
> > you don't believe me, re-read the spec.
> >
> > It's a MCM with the PIIX3 being internally connected.   The 
> > connection between the i440fx and PIIX3 happens to be PCI but that's 
> > not always the case.  Sometimes it's a proprietary bus.
>
> Aren't they two distinct chips, together comprising the chip-set?
>
> One (the northbridge) converts the system bus to PCI + some extra 
> wires, the other (southbridge) bridges PCI to ISA and contains some 
> embedded ISA devices.  IIRC there are some wires between them that are 
> not PCI.

Yes, you are correct.  So I can understand an argument for:

  -device i440fx,id=pmc -device piix3,chipset=pmc

Or something like that.

Regards,

Anthony Liguori