* Jeremy Fitzhardinge ([email protected]) wrote:
> Zachary Amsden wrote:
> >I'd rather keep it, even with bitrot - it was non-trivial to get
> >correct, and found many surprises in the code; most notably, it can
> >detect
> >
> >1) PTE writes to pages not declared as page tables
> >2) Failure to allocate or de-allocate page tables using the
> >paravirt-ops API
> >3) PTE writes using the wrong level operations
> >
> >These are most useful properties; in fact, I would like to extend the
> >code for 64-bit paravirt-ops and 4-level paging, so rather not kill it
> >until then.
> >
> >I never merged the whole bit upstream because it added a field to
> >struct page.
>
> Hm, is that a big problem? It would be OK for a debug config option,
> wouldn't it? Also, it doesn't seem particularly vmi-specific. Could it
> be made part of the pvops infrastructure?
I'm pretty sure lguest64 hit some of the problems Zach is trying to
catch, so should generalize well-enough.
thanks,
-chris
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