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Re: [Xen-devel] page table walk in xen_{create, destroy}_contiguous_regi
| To: | "Jan Beulich" <jbeulich@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] page table walk in xen_{create, destroy}_contiguous_region |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Mon, 26 Jun 2006 22:05:43 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Mon, 26 Jun 2006 14:12:17 -0700 |
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On 26 Jun 2006, at 14:53, Jan Beulich wrote: 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 samefunctions wouldn't be valid). Thanks, Jan Looks like the walks are not really needed. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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