[coreboot] Fwd: SeaBIOS and boot of SATA raid card

[Pattrick Hueper]

ups... forgot to "Reply to all..." forwarding to list


---------- Forwarded message ----------
From: Pattrick Hueper <phueper at hueper.net>
Date: Wed, Dec 17, 2008 at 11:33 AM
Subject: Re: [coreboot] SeaBIOS and boot of SATA raid card
To: Kevin O'Connor <kevin at koconnor.net>


On Wed, Dec 17, 2008 at 6:30 AM, Kevin O'Connor <kevin at koconnor.net> wrote:
> Hi Ruik!
>
> The simple way to do this (reload the ebda_seg from the bda) on every
> access is going to lead to terrible code generation.  It may be
> simpler to implement the Post Memory Manager (PMM) interface - in
> theory, an option rom shouldn't relocate the ebda if it can allocate
> memory via PMM.  Another possibility would be to assign a segment to
> the current ebda location (eg, fs/gs) at every entry to the C code.
>
for YABEL i have done PMM handling while working for IBM, however,
that code was not open sourced.. if it helps, i can try to come up
with the code for YABEL again, maybe it is portable to SEABIOS?

Patty