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Re: [Xen-devel] memory_reservation bug?: memory holes
| To: | "Mick.Jordan@xxxxxxx" <Mick.Jordan@xxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] memory_reservation bug?: memory holes |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Wed, 11 Mar 2009 22:41:37 +0000 |
| Cc: | xen-devel-list <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Wed, 11 Mar 2009 15:42:14 -0700 |
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| Thread-index: | AcmigqXH16w9u5QiQDKR53hMQ9H/swAF+OWy |
| Thread-topic: | [Xen-devel] memory_reservation bug?: memory holes |
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On 11/03/2009 19:50, "Mick Jordan" <Mick.Jordan@xxxxxxx> wrote: > A related question. I assume it is ok to have holes in the physical > memory, i.e. call decrease_reservation with a range << max_pfn. In this > case, what are the rules for the value in the P2M table? Does Xen zero > out the slot or is it the guest's responsibility? save/restore must be > able to determine that a hole exists. The P2M is completely in your control. Xen doesn't care about it. The toolstack cares about it only for save/restore -- there I think any invalid value stuffed in an empty slot would work just fine. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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