Re: [Qemu-devel] [PATCH v2] vfio: Add support for mmapping sub-page MMIO BARs

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On 14/09/2016 00:55, Alex Williamson wrote:
> Paolo, as the reigning memory API expert, do you see any issues with
> this?  Expanding the size of a container MemoryRegion and the contained
> mmap'd subregion and manipulating priorities so that we don't interfere
> with other MemoryRegions.

I guess it's fine if you are okay with maintaining it.
memory_region_set_size exists, might as well use it. :)

What I'm worried about, is what happens if two such regions end up in
the same guest page.  Then the two priorities conflict.

Paolo
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