Re: [PATCH v3 04/12] Add "handle page fault" PV helper.

[Peter Zijlstra]

On Tue, 2010-01-05 at 16:12 +0200, Gleb Natapov wrote:
> Allow paravirtualized guest to do special handling for some page faults.
> 
> The patch adds one 'if' to do_page_fault() function. The call is patched
> out when running on physical HW. I ran kernbech on the kernel with and
> without that additional 'if' and result were rawly the same:

So why not program a different handler address for the #PF/#GP faults
and avoid the if all together?

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