Re: [Qemu-devel] [PATCH qemu v14 01/18] memory: Fix IOMMU replay base address

[Paolo Bonzini]

On 22/03/2016 04:26, David Gibson wrote:
>> > >...it might be simpler to replace both the iommu and
>> > >offset_within_address_space fields here with a pointer to the
>> > >MemoryRegionSection instead, which should give you all the info you
>> > >need.
>> 
>> 
>> MemoryRegionSection is allocated on stack in listener_add_address_space()
>> and seems to be in general some sort of temporary object.

If you need the information in a MemoryRegionSection, by all means use
it.  For example users of hw/display/framebuffer.c store a
MemoryRegionSection (in that case, they get it from memory_region_find,
but it doesn't have to be that way).

Otherwise I agree with what David has said.

Paolo