lkml.org 
[lkml]   [2008]   [May]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/2] Use structs instead of hardcoded offsets in x86 boot decompressor.
On Fri, 23 May 2008 17:59:27 -0400
Kristian Høgsberg <krh@redhat.com> wrote:

> Signed-off-by: Kristian Høgsberg <krh@redhat.com>

Acked-by: Rik van Riel <riel@redhat.com>


> +static struct boot_params *real_mode; /* Pointer to real-mode data */
> +static struct screen_info *rm_screen_info; /* Pointer to real-mode data */

People who wonder why these pointers never get initialized: they
point to the zeropage, which of course lives at address zero.

/* The so-called "zeropage" */
struct boot_params {
struct screen_info screen_info; /* 0x000 */
struct apm_bios_info apm_bios_info; /* 0x040 */
__u8 _pad2[12]; /* 0x054 */
struct ist_info ist_info; /* 0x060 */
...

--
All rights reversed.
--
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/

\
 
 \ /
  Last update: 2008-05-24 03:11    [W:0.059 / U:0.296 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site