[coreboot] locking...

[Myles Watson]

> yes, that is why I did that struct-based stack in my v3 SMP startup.
> The struct formed the base of the AP stack. We could put a simple
> print buffer in there and require that the BSP print out AP boot
> messages.

So each AP has some part of RAM to copy the buffer to?

I guess that doesn't help with RAM initialization issues, or am I missing
something?  Maybe that's a small price to pay.  Maybe we should allow
"Everyone prints" as an option for RAM init debugging.

Thanks,
Myles