Re: [Qemu-devel] [PATCH 3/6] versatile_pci: user PCIHostState instead of PCIBus

[Paul Brook]

On Tuesday 12 January 2010, Isaku Yamahata wrote:
> To use pci host framework, use PCIHostState instead of PCIBus in
>  PCIVPBState.

No.

pci_host.[ch] provides very specific functionality, it is not a generic PCI 
host device. Specifically it provides indirect access to PCI config space via 
a memory mapped {address,data} pair. The versatile PCI host exposes PCI config 
space directly, so should not be using this code.

If you want a generic framework for PCI hosts then you need to use something 
else. If nothing else, assuming that a PCI host bridge is always is SysBus 
device is wrong.

Paul