lkml.org 
[lkml]   [2007]   [Dec]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] x86_64: fix problems due to use of "outb" to port 80 on some AMD64x2 laptops, etc.
Jan Engelhardt wrote:
> On Dec 15 2007 17:46, Alan Cox wrote:
>>> My understanding is that the linux starts in real mode, and uses the
>>> BIOS for such things as reading the very first image.
>> Not always. We may enter from 32bit in some cases, and we may also not
>> have a PC BIOS in the first place.
>
> Computers without a PC BIOS (I'm trying to think of something, e.g.
> the typical SUN sparc64 box) should have other means of accessing a
> clocksource, no?

We were talking about x86 here, though.

Even on x86 we sometimes run from the 32-bit entrypoint.

-hpa


\
 
 \ /
  Last update: 2007-12-18 00:01    [W:0.428 / U:0.312 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site