| Subject | Re: [PATCH v3 04/12] Add "handle page fault" PV helper. | From | Peter Zijlstra <> | Date | Thu, 14 Jan 2010 18:31:07 +0100 |
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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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