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RE: [Xen-ia64-devel] [PATCH] per vcpu vhpt

To: "Tristan Gingold" <Tristan.Gingold@xxxxxxxx>, "Isaku Yamahata" <yamahata@xxxxxxxxxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-ia64-devel] [PATCH] per vcpu vhpt
From: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
Date: Mon, 9 Oct 2006 16:23:17 +0800
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Thread-topic: [Xen-ia64-devel] [PATCH] per vcpu vhpt
>>
>> One more thinking is, seems we plan to expose p2m table to domU, in
this
>> case, if we use VHPT_ADDR to map VHPT, itc can be "emulated" inside
domU,
>> when domU want to insert a mapping, it can look up p2m for machine
physical
>> address, then insert the transferred mapping into VHPT directly.
>Hi Anthony,
>
>I do not fully understand the last paragraph.  Are you proposing an
>optimization  or do you think there is a bug ?
>
>Although I have not checked I suppose the p2m table is RO.

I'm proposing a possible optimization,
But forget it, seems domU can't get hash address in VHPT without the
help of Xen.

Thanks,
Anthony

>
>Tristan.

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