Re: [patch 1/5] x84_64, apic: Use probe routines to simplify apicselection

From: Ingo Molnar
Date: Tue May 17 2011 - 08:28:55 EST

* Suresh Siddha <suresh.b.siddha@xxxxxxxxx> wrote:

> On Mon, 2011-05-16 at 01:08 -0700, Ingo Molnar wrote:
> > Ok, looks like a step forward in the right direction.
> >
> > Wouldnt it be more self-contained if the probe function returned an apic driver
> > pointer?
> >
> > We could add an __apicdriver section trick to 'know' about all APIC probing
> > functions - and we'd call them one by one and use the first one that returns a
> > non-NULL result.
> >
> > Then we'd have the generic fallback APIC drivers as well - not marked
> > __apicdriver but used by the probe function directly.
> >
> > Or we could have them as __apicdriver as well, but then the .o link ordering
> > matters to probing order.
> >
> So how does something like the appended look? There are multiple apic
> driver routines and apic name string that is being looked at by the
> generic code. So I exported the struct apic * using the section trick.
> Untested for now. If you are ok, then I will post with a better
> changelog.

Yeah, this looks very nice to me.


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