RE: [Xen-devel] transferring ownership of domheap pages

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>From: Dan Magenheimer
>Sent: Friday, February 13, 2009 8:59 AM
>
>I'd like to have routines to transfer ownership
>of a page both from domain D1 to anonymous and
>from anonymous to domain D2, without the necessity
>of doing a free_domheap_pages followed by an
>alloc_domheap_pages (primarily because I don't
>want to scrub the page as I know it will be
>immediately overwritten by the new owner).
>The anon-to-D2 would fail (return NULL) if
>D2 is fully allocated.
>
>Any problems to watch out for?
>
>Thanks,
>Dan
>

It's doable. I guess gnttab_transfer could be referenced
similar to your purpose, but I didn't look into detail. :-)

Thanks,
Kevin
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