[coreboot] RFC: Changing CBMEM console to run as a persistent ring-buffer

[Gerd Hoffmann]

  Hi,

> Right, sorry, I confused something while writing the explanation
> there. Nevertheless, the SeaBIOS code will require a small adjustment
> (same as the libpayload driver in the patch I linked) to continue
> appending correctly after the log has rolled over, and I'll provide
> that patch. 

Is it possible to figure whenever the cbmem buffer supports rollover or
not, so a updated seabios version can work correctly with both old and
new coreboot?

cheers,
  Gerd