On 14.05.2010, at 15:15, Matteo Signorini wrote:
> Hi to all,
>
> I am working on NPT and have some doubts.
> Please correct me if I am wrong,
>
> In NPT only the first time a page fault happens it is trapped by the host.
> The following page faults are not trapped by the host in order to
> reduce page walk overhead.
>
> My question is...
>
> Which Kvm function handles the "nested page fault"?
The exit code is SVM_EXIT_NPF. Just search for the handler in svm.c:svm_exit_handlers.
[SVM_EXIT_NPF] = pf_interception,
So it gets handled in pf_interception.
Alex
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