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[Xen-devel] page table walk in xen_{create, destroy}_contiguous_region
| To: | <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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| Subject: | [Xen-devel] page table walk in xen_{create, destroy}_contiguous_region |
| From: | "Jan Beulich" <jbeulich@xxxxxxxxxx> |
| Date: | Mon, 26 Jun 2006 15:53:16 +0200 |
| Delivery-date: | Mon, 26 Jun 2006 06:53:16 -0700 |
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Is there a particular reason why these functions need to walk the page table rather than doing a much cheaper p2m translation? vstart is assumed to be in the direct mapping area anyway (otherwise the uses of __pa() in the same functions wouldn't be valid). Thanks, Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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