RE: [PATCH] vfio: Fix endianness handling for emulated BARs

[David Laight]

From: Alexey Kardashevskiy
...
> >> So IMHO we should either create new, generic iowrite helpers that don't
> >> do any endian swapping at all or do iowrite32(cpu_to_le32(val)) calls.
> >
> > I'm one of those people for whom iowrite32(le32_to_cpu(val)) makes sense
> 
> 
> I do not understand why @val is considered LE here and need to be converted
> to CPU. Really. I truly believe it should be cpu_to_le32().

Think about it carefully...

Apparently iowrite32() is writing a 'cpu' value out 'le'.
So if you have a 'le' value you need to convert it to 'cpu' first.

I really won't ask how 'be' ppc managed to get 'le' on-chip peripherals.

	David

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