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xen-devel
Re: [Xen-devel] [RFC][PATCH]Large Page Support for HAP
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To: |
Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
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Subject: |
Re: [Xen-devel] [RFC][PATCH]Large Page Support for HAP |
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From: |
"Stephen C. Tweedie" <sct@xxxxxxxxxx> |
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Date: |
Tue, 20 Nov 2007 17:40:35 +0000 |
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Cc: |
Tim Deegan <Tim.Deegan@xxxxxxxxxxxxx>, Stephen Tweedie <sct@xxxxxxxxxx>, Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, "Huang2, Wei" <Wei.Huang2@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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Tue, 20 Nov 2007 09:42:38 -0800 |
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<C368C862.18B77%Keir.Fraser@xxxxxxxxxxxx> |
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<C368C862.18B77%Keir.Fraser@xxxxxxxxxxxx> |
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Hi,
On Tue, 2007-11-20 at 17:22 +0000, Keir Fraser 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.
--Stephen
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