Re: [Xen-devel] Live migration leaves page tables read-only?

[John Byrne <john.l.byrne@xxxxxx>]

John Byrne wrote:
> ...snipped..
> I finally ran down the problem. SAP is protecting the pages PROT_NONE, 
> so the page-present bit in the pte is not set and 
> canonicalize/uncanonicalize code in save/restore ignore the pte. I've 
> attached a patch. It is possible that this change should be made to the 
> l1e tests in xc_ptrace.c; I'm not sure.
> John Byrne
The patch is against xen-unstable changeset 12815:1ad7dff99968.

John Byrne


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