Re: Reserving physical memory at boot time

From: Richard B. Johnson (root@chaos.analogic.com)
Date: Wed Dec 04 2002 - 08:25:57 EST


On 3 Dec 2002, Alan Cox wrote:

> On Tue, 2002-12-03 at 21:11, Richard B. Johnson wrote:
> > If you need a certain page reserved at boot-time you are out-of-luck.
>
> Wrong - you can specify the precise memory map of a box as well as use
> mem= to set the top of used memory. Its a painful way of marking a page
> and it only works for a page the kernel isnt loaded into.
>

If you are refering to the "reserve=" kernel parameter, I don't
think it works for memory addresses that are inside existing RAM.
I guess if you used the "mem=" parameter to keep the kernel from
using that RAM, the combination might work, but I have never
tried it.

Cheers,
Dick Johnson
Penguin : Linux version 2.4.18 on an i686 machine (797.90 BogoMips).
   Bush : The Fourth Reich of America

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sat Dec 07 2002 - 22:00:19 EST