On Fri, 17 Jul 2015, Julien Grall wrote:

On 17/07/15 14:20, Stefano Stabellini wrote:

quoted

We would have to run some benchmarks, but I think it would still be a
win. We should write an ad-hoc __pfn_to_mfn translation function that
operates on a range of pfns and simply checks whether an entry is
present in that range. It should be just as fast as __pfn_to_mfn. I
would definitely recommend it.

I'd like to see a basic support of 64KB support on Xen pushed in Linux
upstream before looking to possible improvement in the code. Can we
defer this as the follow-up of this series?

Yes, maybe add a TODO comment in the code.