Re: [Xen-devel] Page tables in Xen

[Tim Deegan <Tim.Deegan@xxxxxxxxxx>]

Hi,

At 06:49 +0100 on 29 Nov (1196318951), Daniel Stodden wrote:
> On Thu, 2007-11-29 at 11:00 +0530, pradeep singh rautela wrote:
> > On Nov 29, 2007 1:42 AM, Haifeng He <hehaifeng2nd@xxxxxxxxx> wrote:
> > > Thanks for answering my question. I am talking about PV mode. What about 
> > > shadow
> > > page table? Does it mean, Xen will keep (real) copies of page tables?
> > 
> > Shadown page tables are employed in HVM guests not PV guests.

Shadow pagetables are also used when doing live migration of PV guests,
but they don't do the automatic translation and reference-counting that
they do for HVM guests.

> regarding shadowed PV domains, there's still
> XENFEAT_auto_translated_physmap. but it's rather exotic and therefore
> rarely used.

And therefore, AFAIK, doesn't work.
 
Tim.

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

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel