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Subject: Re: [PATCH 4/4] powerpc/boot: don't clobber r6 and r7 in epapr boot
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Jeremy Kerr <jk@ozlabs.org>
Date: Wed, 11 Feb 2015 15:50:20 +1100
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On Wed, 2015-02-11 at 12:27 +0800, Jeremy Kerr wrote:
> Hi Ben,
> 
> > You might want to also remove the use of r8 and r9 which are supposed
> > to contain the OPAL entry and base for debugging purposes. We would also
> > have to restore them before booting the kernel.
> 
> I'd prefer that to be a separate change, if that's okay - it'd require
> us to change the kentry prototype, and would percolate to epapr_platform
> init too.

Ok.

Ben.