[PATCH v15 06/12] swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing

Christoph Hellwig hch at lst.de
Wed Jul 7 00:05:13 AEST 2021


On Tue, Jul 06, 2021 at 03:01:04PM +0100, Robin Murphy wrote:
> FWIW I was pondering the question of whether to do something along those 
> lines or just scrap the default assignment entirely, so since I hadn't got 
> round to saying that I've gone ahead and hacked up the alternative 
> (similarly untested) for comparison :)
>
> TBH I'm still not sure which one I prefer...

Claire did implement something like your suggestion originally, but
I don't really like it as it doesn't scale for adding multiple global
pools, e.g. for the 64-bit addressable one for the various encrypted
secure guest schemes.


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