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RE: [Xen-devel] transferring ownership of domheap pages
| To: | 'Dan Magenheimer' <dan.magenheimer@xxxxxxxxxx>, "Xen-Devel (E-mail)" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] transferring ownership of domheap pages |
| From: | "Tian, Kevin" <kevin.tian@xxxxxxxxx> |
| Date: | Fri, 13 Feb 2009 09:50:20 +0800 |
| Accept-language: | en-US |
| Acceptlanguage: | en-US |
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| Delivery-date: | Thu, 12 Feb 2009 17:51:17 -0800 |
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| Thread-index: | AcmNdoZ4OLT9T72RSz2K61+h7DGJTwABr7bw |
| Thread-topic: | [Xen-devel] transferring ownership of domheap pages |
>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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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