From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jacob Gorm Hansen <jacobg@diku.dk>
Subject: Re: Tracking changes to writable page tables
Date: Sun, 15 May 2005 00:26:49 -0700
Message-ID: <4286F9B9.7070403@diku.dk>
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To: Jacob Gorm Hansen <jacobg@diku.dk>
Cc: Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>, xen-devel <xen-devel@lists.xensource.com>
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Jacob Gorm Hansen wrote:
> Ian Pratt wrote:

>>
>>
>> Hmm, I can see that the current model makes like difficult for you
>> (though self-migration is a pretty twisted thing to be trying to do
>> anyway :-)
>>
> 
> Hmm while we are discussing twisted things; would it be possible to 
> implement writable page tables in the guest rather than in Xen?
> 

On a related note, is there any way of querying the pinning status of 
pages from Xen? I used to have two global bitmaps in the guest, one for 
l1 and one for l2, but I suppose I could just as well add a 
get-pinned-status(mfn) hypercall to Xen, if there is not one already?

Or I could add this info to struct page in Linux.

thanks,
Jacob