lkml.org 
[lkml]   [2000]   [Dec]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: That horrible hack from hell called A20
Alan Cox wrote:
>
> > INT 15-2401 disable A20
> > INT 15-2402 query status A20
> > INT 15-2403 query A20 support (kdb or port 92)
> >
> > IBM classifies these functions as optional, but it is enabled on a lot
> > of
> > new BIOS, no know conflicts, thus we can call this function to enable
> > A20,
> > check the result and only after failure we can try the old methods.
>
> I trust Linus over BIOS vendors, every single time.
>

The problem here is Linus doing things right, and the BIOS vendors not...
and the BIOS getting confused. If INT 15:24xx is supported, we might
actually want to use it, under the assumption that if it works, the BIOS
Suspend-to-Foo routines probably won't get too confused.

-hpa

--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:51    [W:1.116 / U:0.684 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site