* Jan Beulich <[email protected]> wrote:
> >>> On 20.02.18 at 09:10, <[email protected]> wrote:
> > * Jan Beulich <[email protected]> wrote:
> >> Using just the leaf page table entry flags would cause a false warning
> >> in case _PAGE_RW is clear or _PAGE_NX is set in a higher level entry.
> >
> > Under what circumstances did you see false positive warnings?
>
> As explained in the 2-patch series this was originally part of, there
> continues to be that W+X warning when running under Xen, as
> commit 2cc42bac1c ("x86-64/Xen: eliminate W+X mappings") has
> to make the necessary adjustment in L2 rather than L1 (the
> reason is explained there). I.e. _PAGE_RW is clear there in L1,
> but _PAGE_NX is set in L2.
This would make an excellent additional paragraph of the v2 changelog.
Thanks,
Ingo
