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

[Anthony Liguori]

On 05/18/2011 02:40 PM, Jan Kiszka wrote:
> On 2011-05-18 15:12, Avi Kivity wrote:
> > void cpu_register_memory_region(MemoryRegion *mr, target_phys_addr_t addr);
>
> OK, let's allow overlapping, but make it explicit:
>
> void cpu_register_memory_region_overlap(MemoryRegion *mr,
>                                          target_phys_addr_t addr,
>                                          int priority);

The device doesn't actually know how overlapping is handled.  This is 
based on the bus hierarchy.

Regards,

Anthony Liguori

> We need that ordering, so we need an interface. Regions registered via
> cpu_register_memory_region must not overlap with existing one or we will
> throw an hwerror. And they shall get a low default priority.
>
> Jan