Re: [Qemu-devel] [PATCH RFC] memory: drop _overlap variant

[Avi Kivity]

On Tue, Feb 19, 2013 at 6:08 PM, Michael S. Tsirkin <address@hidden> wrote:
>>
>> The IOAPIC is actually closer to ISA, but again it's sufficient to
>> move it to the PCI address space.  I doubt its priority matters.
>
> Well moving IOAPIC to PCI seems strange, it's not a PCI thing,
> and I think it can be moved outside PCI though guests don't do it.

Look at the 440fx/piix datasheets.  It's connected to the piix which
decodes its address.  So it's definitely part of the pci address
space.


> So I think ideally we really should have it look something like:
>
>         sysbus -> ioapic
>                -> pci -> msi
>