[Xen-devel] Re: [PATCH 0 of 9] swiotlb: use phys_addr_t for pages

[Ingo Molnar <mingo@xxxxxxx>]

* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

> FUJITA Tomonori wrote:
>> Well, I asked Jeremy to use Becky's approach so I don't have though
>> this patchset isn't enough for Becky (possibly for Xen too) since
>> Jeremy didn't put Becky's map_single_page changes. These changes are
>> necessary to support map_map_page with highmem. I think that we can do
>> it simpler than his patch. I'll send patches to that in a different
>> way soon.
>>
>> It's not principal objection, but as I said, the patches to revert
>> Jeremy's highmem patches in this patchset like the following are
>> pointless.
>>   
>
> I don't mind either way.  I was hoping to go with something that I've 
> actually tested, but I don't see any reason why Becky's patches won't 
> work in principle for Xen.  I'm on vacation at the moment, but I can 
> test things out when I get back in a couple of weeks and apply whatever 
> fixes are needed at whatever stage we're at then.

yes, obviously we prefer append-only - i kept your patches and added the 
Becky lineup and Fujita's cleanups on top of that. If they break your Xen 
swiotlb use it should all be easily bisectable.

        Ingo

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