Il 11/10/2012 15:45, Avi Kivity ha scritto:
>>> >> +struct MemoryRegionIOMMUOps {
>>> >> + /* Returns a TLB entry that contains a given address. */
>>> >> + IOMMUTLBEntry (*translate)(MemoryRegion *iommu, target_phys_addr_t
>>> >> addr,
>>> >> + bool is_write);
>>> >> +};
>> >
>> > Do map/unmap still make sense in this model? Ben & David, what were
>> > your plans there?
>> >
> Map/unmap is supported via address_space_map(), which calls
> ->translate(). I don't see how a lower-level map/unmap helps, unless
> the hardware supplies such a function.
Yep, it's just the map/unmap callbacks that are not supported anymore,
but nobody uses that feature of DMAContext yet.
Paolo
