Re: [Xen-devel] Tracking changes to writable page tables

[Jacob Gorm Hansen <jacobg@xxxxxxx>]

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

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