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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: |
Mon, 26 Nov 2007 17:26:14 +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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Mon, 26 Nov 2007 09:27:12 -0800 |
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<C368CD6F.18CCA%Keir.Fraser@xxxxxxxxxxxx> |
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Hi,
On Tue, 2007-11-20 at 17:44 +0000, Keir Fraser wrote:
> > 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.
Thinking about this --- do we have any way to let the admin easily tell
how many PSE pages a guest has successfully created vs. how many have
been faked? If an admin can't rely on bigpages, at least they will want
to be able to find out when they are working and when they are not.
--Stephen
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