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Re: [Xen-devel] bogus gfn - mfn - gfn - mfn checks in guest_physmap_add_

To: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Subject: Re: [Xen-devel] bogus gfn - mfn - gfn - mfn checks in guest_physmap_add_entry
From: Olaf Hering <olaf@xxxxxxxxx>
Date: Wed, 24 Nov 2010 16:00:18 +0100
Cc: Patrick Colp <pjcolp@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On Wed, Nov 24, Tim Deegan wrote:

> The guest_physmap_add_entry code, and the p2m audit code, would be made
> more reliable if, say, alloc_domheap_pages and/or free_domheap_pages
> zapped the m2p entries for MFNs they touched.

Ok, if thats the ultimate place where mfns come and go, I will make my
changes there.

Olaf

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