Re: [Qemu-devel] [PATCH v3] hw/arm/virt: Add high MMIO PCI region

[Igor Mammedov]

On Wed, 29 Jul 2015 15:02:00 +0300
Pavel Fedin <address@hidden> wrote:

>  Hello!
> 
> > I don't suggest to have something mapped on top of the window,
> > Suggestion was to just use the same value for
> > AddressMaximum and AddressMinimum arguments in aml_qword_memory() call.
> 
>  And this will shrink the region down to zero, right? For what reason? 
> Physical region would still
> be there (here we imagine this is a real HW).
nope, it won't shrink anything. It will prevent OS from potential
relocation of region.

AddressMaximum is a max possible BASE address of range,
I read 'base address' as starting address of range and
it has nothing to do with the size.

See spec, ACPI6.0: 19.6.104 QWordMemory

> 
> Kind regards,
> Pavel Fedin
> Expert Engineer
> Samsung Electronics Research center Russia
> 
>