On Tue, Jan 12, 2021 at 6:39 PM Nithin Dabilpuram
[off-list ref] wrote:

Currently external memory test uses 4K page size.
VFIO DMA mapping works only with system page granularity.

Earlier it was working because all the contiguous mappings
were coalesced and mapped in one-go which ended up becoming
a lot bigger page. Now that VFIO DMA mappings both in IOVA as VA
and IOVA as PA mode, are being done at memseg list granularity,
we need to use system page size.

When you say "earlier", do you mean before this series?
The other patches have been marked for backports, so either this test
change must be too, or its content must be squashed in the right patch
of this series.


-- 
David Marchand