Nested Page Faults

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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"?

Thanks in advance,

Matteo
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