Re: [Xen-devel] Shadow page tables?

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

Currently, shadow p.t.'s are only enabled when migrating OSes between
machines. This allows us to copy the memory image while the OS is
still running, and track which pages are updated after being copied
(and so need to be recopied).

We intend to flesh out the shadow p.t. code a little mroe to support
full memory virtualisation. It's not there yet, but it won't require
an enormous amount of code to get it going.

 -- Keir

> Hi,
> 
> I'm using Xen 2.0 (base kernel is 2.6.8.1) and found that it doesn't
> enable the shadow page tables in Xen though there is code there.
> 
> If the shadow page tables are enabled, does it mean that the guest
> Linux' memory management module could be fully virtualized?
> 
> Thanks,
> Chengyuan
> 
> 
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