Re: [PATCH] powerpc: Fix alignment of secondary cpu spin vars

[Olof Johansson]

On Thu, Jan 02, 2014 at 11:56:04PM -0800, Olof Johansson wrote:

> This makes things interesting though. The BE/LE trampoline code
> assumes at least 3 consecutive instructions. What was the reasoning
> behind entering the kernel LE instead of keeping the old boot protocol
> and just switching to LE once kernel is loaded? Is it actually used on
> some platforms or is this just a theoretical thing?

Actually, adding a little hack that zeroes out the memory once we're done
executing it will work just fine too. I know this is sort of icky, but maybe
it'll be good enough for now?

Of course, main worry is that this is just hiding some latent NULL deref in
the kernel now... :-/


-Olof

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