Re: how to use memory before kernel load address?

[Atsushi Nemoto <anemo@mba.ocn.ne.jp>]

On Tue, 20 Nov 2007 13:04:51 +0000, Thiemo Seufer <ths@networkno.de> wrote:
> >          i have try to pass param as mem=1M@1M mem=16M@16M  to the kernel,
> > it seems only take the 0x8000000 ~ kernel_end as reserved.
> >          is there any other options to set the memory useable? ( my kernel
> > version is 2.6.14)
> >          thanks for any hints
> 
> AFAIR the kernel assumes to occupy the lowest addresses of the usable RAM.

You can use prom_free_prom_memory() to give some low pages back to kernel.

---
Atsushi Nemoto