Re: [Qemu-devel] [RFC] Memory API

[Avi Kivity <avi@redhat.com>]

On 05/19/2011 05:37 PM, Anthony Liguori wrote:
>
> So....  do you do:
>
> isa_register_region(ISABus *bus, MemoryRegion *mr, int priority)
> {
>     chipset_register_region(bus->chipset, mr, priority + 1);
> }
>
> I don't really understand how you can fold everything into one table 
> and not allow devices to override their parents using priorities.

Think of how a window manager folds windows with priorities onto a flat 
framebuffer.

You do a depth-first walk of the tree.  For each child list, you iterate 
it from the lowest to highest priority, allowing later subregions 
override earlier subregions.

-- 
error compiling committee.c: too many arguments to function