Re: [Xen-devel] [PATCH v2] amd-iommu: remove page merging code

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 27.11.18 at 17:05, <Paul.Durrant@xxxxxxxxxx> wrote:
> Well, I could just leave PV-IOMMU unimplemented for AMD h/w if you think the 
> page merging code is more important since, without the spare ignored bits, I 
> have no way to track pages added by the hypercall vs. those added at start of 
> day. I personally think that the simpler code is worthwhile in itself but I 
> guess you disagree.

Not exactly: With a proper reason (here: you need to free up at least
one of the bits; "for other potential use" simply is too vague for my
taste, and to be honest I had already forgotten about this need of
yours), I can live with this. Plus I'm not the maintainer of this code
anyway.

Jan



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