Re: [Qemu-devel] [PATCH 0/4] qdev: isa bus.

[Paul Brook]

> I've tried to also handle isa-via-mmio used by certain architectures and
> hide that in isa-bus.c, so the individual drivers don't have to care
> once everything is converted over to qdev.

ISA-via-mmio is actually something different. This is a feature of the host 
bridge, and implemented in isa_mmio.c.

The devices you're talking about are devices that have both ISA and "SysBus" 
incarnations with very similar programming interfaces, in the same way that 
some devices have both ISA and PCI variants.

Paul