Setting it to LE forces a byte swap when host != guest endian but
this makes no sense at all.
Herve made the suggestion upon observing that word writes/reads
were broken into byte writes/reads in such a way as to assume
devices are interpret registers as LE.
However, even if this were a problem, marking the region as LE is
not useful because what's essentially happening here is that LE is
open coded. So by marking it LE in MemoryRegionOps, we're doing a
superflous swap.
Now, the portio code is suspicious to begin with. The dispatch
layer really has no purpose in splitting I/O requests in the first
place...
Cc: Hervé Poussineau <hpoussin@reactos.org>
Cc: Alex Graf <agraf@suse.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
static const MemoryRegionOps portio_ops = {
.read = portio_read,
.write = portio_write,
- .endianness = DEVICE_LITTLE_ENDIAN,
.valid.unaligned = true,
.impl.unaligned = true,
};