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[Xen-devel] Allowing several mappings of a frame
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-devel] Allowing several mappings of a frame |
| From: | Mohammad Hedayati <hedayati.mo@xxxxxxxxx> |
| Date: | Fri, 28 Oct 2011 00:46:47 +0330 |
| Delivery-date: | Thu, 27 Oct 2011 14:22:39 -0700 |
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Xen currently allows granting a single frame to several domains, several times (to map or copy). Though the feature itself seems appealing, I wonder if there's a real use case in any ports or PV aware applications (i.e. a page is mapped or copied by more than 2 domains). Is there? Except the condition outlined above, PGC_count_mask part of a page->count_info can be more than 1? Thanks, Mohammad _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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