Re: [PATCH 0/18][RFC] Nested Paging support for Nested SVM (aka NPT-Virtualization)

[Avi Kivity]

On 03/04/2010 05:58 PM, Joerg Roedel wrote:
> > You probably need to include a flag in base_role to differentiate
> > between l1 / l2 shadow tables (say if they use the same cr3 value).
> >      
> Not sure if this is necessary. It may be necessary when large pages come
> into play. Otherwise the host npt pages are distinguished by the shadow
> npt pages by the direct-flag.
>    

Hm, I think that direct maps for the same gfn can be shared.

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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