Re: [RFC 0/2] XEN SWIOTLB for ARM dma operations extension

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Wed, Jan 11, 2017 at 06:09:03PM +0200, Andrii Anisov wrote:
> Dear Konrad,
> 
> Please see my comments below:
> > It would be good to have that as part of this patchset, otherwise
> > this is kind of non-compiling type patch.
> I'm not really sure what do you mean.

As in attaching an rework of the patch to this patchset.

> The patch I refer was done for LK 3.4 if I remember, it is not applicable to
> 4.6 I'm currently working with.
> Moreover xen-swiotlb infrastructure changed significantly so the patch is
> completely reworked. The only
> common code is that mmap is defined in ARM specific xen_swiotlb_dma_ops.
> I just refer to it and left author and signed-of-s as a respect to the work
> done few years ago.
> 
> > But more importantly, I think you need to also to take into account
> > Stefano's comments:
> I've encapsulated all the code changes in an arch/arm/xen/mm.c so I don't
> think your doubts and Stephano's comment
> about x86 build impact is relevant here.
> 
> -- 
> 
> *Andrii Anisov*
> 
> *Lead Systems Engineer*
> 
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