Re: [Xen-devel] [PATCH ARM v8 2/4] mini-os: arm: interrupt controller

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Fri, 2014-11-14 at 11:48 +0000, Julien Grall wrote:
> 
> On 14/11/2014 11:42, Ian Campbell wrote:
> > On Fri, 2014-11-14 at 11:33 +0000, Julien Grall wrote:
> >>>> Though IIRC, mini-os for ARM is not yet SMP.
> >>>
> >>> It's difficult to see what needs to be done to support code that
> >>> doesn't exist yet. For example, would gic_init be called once, or once
> >>> per processor? Before or after the other processors are started?
> >>
> >> Some part of the code maybe necessary: setting PPIs/SGIs... You can give
> >> a look to Linux/Xen GIC drivers to have an idea on what is necessary.
> >
> > This would be necessary as part of the port of mini-os to support SMP. I
> > don't see why it should be necessary now, going to SMP is surely going
> > to require a bunch of refactoring in other places too (Xen itself
> > certainly did).
> 
> I just answered to his question. I didn't asked for changing this code 
> right now.

I'm afraid you haven't made that at all clear until now.

Ian.



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