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xen-devel
Re: [Xen-devel] [RFC][PATCH]Large Page Support for HAP
On 20/11/07 17:40, "Stephen C. Tweedie" <sct@xxxxxxxxxx> wrote:
>>> I don't have any objection to doing opportunistic PSE for the former
>>> case. But telling the two apart is rather hard.
>>
>> Support for PV guests would be explicit. Hugetlbfs would know whether it had
>> superpages or not, and can fail in the latter case.
>
> Yep, I'd be assuming that. It's the FV case where it's harder to see
> how we communicate this information back to the guest.
Without PV'ing up the guest I don't see how it is possible. If we advertise
support for long mode, then that must imply support for PSE.
-- Keir
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