Re: [PATCH 02/11] Add "handle page fault" PV helper.

[Avi Kivity]

On 11/08/2009 01:36 PM, Ingo Molnar wrote:
> > Three existing callbacks are: kmemcheck, mmiotrace, notifier. Two
> > of them kmemcheck, mmiotrace are enabled only for debugging, should
> > not be performance concern. And notifier call sites (two of them)
> > are deliberately, as explained by comment, not at the function entry,
> > so can't be unified with others. (And kmemcheck also has two different
> > call site BTW)
> >      
> We want mmiotrace to be generic distro capable so the overhead when the
> hook is not used is of concern.
>
>    

Maybe we should generalize paravirt-ops patching in case if (x) f() is 
deemed too expensive.

--
error compiling committee.c: too many arguments to function

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