Re: [Xen-devel] Page tables in Xen

[Tim Deegan <Tim.Deegan@xxxxxxxxxx>]

At 20:12 +0800 on 05 Dec (1196885526), tgh wrote:
> hi
>  in the PV mode,VM guestOS pagetable is virtual-to-machine address 
> mapping,is it right?

Yes.

>,and when a VM is migrated, the shadow page table 
> mode will be enabled ,is it right?

Yes.

> then, the PVguestOS pagetalbe will 
> become the virtual-to-psuedophysical address mapping, or not?

Not.

>  then ,at 
> that time ,the shadow pagetalbe is virtual-to-machine one ,is it right?

Yes.
 
>  I am still confused ,especially about the PVguestOS pagetalbe when 
> shadow pagetable enabled for migration? is it a virtual-to-machine 
> address mapping, or a virtual-to-psuedophysical address one ?

*All* shadow pagetables are virtual-to-machine translations.  Anything
else wouldn't be much use.

Cheers,

Tim.

-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Citrix Systems.
[Company #5334508: XenSource UK Ltd, reg'd c/o EC2Y 5EB, UK.]

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