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Re: [Xen-devel] [PATCH v3 07/10] xen/arm: Add handling write fault for dirty-page tracing
On Sat, 2013-08-17 at 23:16 +0100, Ian Campbell wrote:
> > And, I am not sure that setting global of page table entry prevents being
> > flushed from TLB flush operation.
> > If it works, we may decrease the vlpt overhead a lot.
>
> yes, this is something to investigate, but not urgently I don't think.
Except I've just had a look and there is no support for the nG bit in
the NS PL2 stage one page tables. Which makes sense since nG is tied to
ASIDs and there is no such concept at NS PL2.
Oh well.
Ian.
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