Re: [Qemu-devel] q35 chipset support

[Andreas Färber]

Am 18.06.2012 16:37, schrieb Michael S. Tsirkin:
> On Mon, Jun 18, 2012 at 09:22:43AM -0500, Anthony Liguori wrote:
>> On 06/18/2012 09:20 AM, Michael S. Tsirkin wrote:
>>> On Fri, Jun 15, 2012 at 12:58:33PM -0500, Anthony Liguori wrote:
>>>> So we need to fix our topological representation of platform devices
>>>> before we start adding more complex chipsets.  Otherwise, we're
>>>> going to end up in a bad situation in the near future.
>>>
>>> OTOH more in-tree examples especially for x86 will keep us
>>> honest: help make sure abstractions make sense,
>>> and prevent people from special casing piix because
>>> this is the prevalent platform for kvm ATM.
>>
>> Yes, more in-tree *correct* examples.  I'm very much in favor of merging q35.
> 
> But is there a way to build a correct chipset right now?
> Or is this blocked waiting for more infrastructure
> to get merged?

The qom-next PULL (with QBus type) is out and Anthony has reviewed my
pci_host mini-series, those two would be good to have as groundwork.
Anything else (e.g., an LPCBus if needed) could be done in the q35
series IIUC.

Having q35 modeled with in-place initialization should probably not be a
hard requirement, relaxing the PCIBus availability issue.

>From what I remember from attempting to refactor the DEC bridge though,
the PCI functions hardcode the domain to 1 currently?

Andreas

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