Re: [Qemu-devel] [PATCH 2/2] m48t59: add mem_base value to m48t59_init_isa()

[Paolo Bonzini]

On 19/01/2015 13:57, Artyom Tarasenko wrote:
>> > Is it really ISA if it's MMIO?  In other words, why can't this be a
>> > sysbus device?
> On physical machines it's EBus, which is pretty much like 8-bit ISA.
> So, I think modelling it as ISA is closer to to the reality.
> But out of curiosity, would it be possible to have a sysbus device
> somewhere in a middle of PCI space? Do sysbus devices have higher
> priority if the address spaces overlap? Or do you mean that the PCI
> controller needs to be modified to have a hole for a sysbus device?

What does the memory map look like (simplifying to "where can BARs be"
and "where is the RTC")?

Paolo