On Wed, Sep 14, 2016 at 05:15:03PM +1000, David Gibson wrote:
[...]
> Peter suggested commenting this next to the IOTLBEntry definition, and
> I think that's probably ok for now.
Looks like we have something already (just not that obvious):
/**
* memory_region_notify_iommu: notify a change in an IOMMU translation entry.
*
* @mr: the memory region that was changed
* @entry: the new entry in the IOMMU translation table. The entry
* replaces all old entries for the same virtual I/O address range.
* Deleted entries have .@perm == 0.
*/
void memory_region_notify_iommu(MemoryRegion *mr,
IOMMUTLBEntry entry);
Though it's quite simple, it did explain that perm==0 is for deleted
entries.
Thanks,
-- peterx
