[coreboot] suspend/resume in v3

[Rudolf Marek]

> I'd never considered any of this, which shows my cluster bias :-)
> 
> OK where do we want v3 reserved memory?

I think we can reserve last MB of RAM, where we will copy coreboot and 
stacks/heaps. If anyone is worried about the "waste" of last MB. I think we can 
hotplug the memory back to OS through ACPI, got some experimental ASL code, but 
kernel panicked. Maybe it is there some glitch.

The tables might not be written for second time, when resuming because they are 
there already ;)

The code absolutely _must_ _not_ write to any other memory. No strange AP stacks 
in random 0 - 640kb ;)

There is no need for SMM code.

Here is mine v2 suspend/resume 
http://www.coreboot.org/pipermail/coreboot/2008-January/028787.html


Rudolf