[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date: Sat, 5 May 2007 12:44:52 +0200
From: Alexander van Heukelum <heukelum@...lshack.com>
To: Andi Kleen <ak@...e.de>, Andrew Morton <akpm@...ux-foundation.org>,
"H. Peter Anvin" <hpa@...or.com>,
lkml <linux-kernel@...r.kernel.org>
Subject: [PATCH] Make bootsector stub 16-bit-only (i386)
Hi!
The x86 bzImage contains a stub to inform people that it is not possible
any more to run a Linux kernel by catting it to a floppy and then
booting from it. This was meant to be all 16-bit code. The first
instruction, however, ended up as being coded as a 16:32-bit far jump. I
assume the intention was a 16:16-bit far jump.
This patch changes only i386.
Greetings,
Alexander
Signed-off-by: Alexander van Heukelum <heukelum@...lshack.com>
---
diff --git a/arch/i386/boot/bootsect.S b/arch/i386/boot/bootsect.S
index 011b7a4..ae9df0d 100644
--- a/arch/i386/boot/bootsect.S
+++ b/arch/i386/boot/bootsect.S
@@ -44,7 +44,7 @@ #endif
_start:
# Normalize the start address
- jmpl $BOOTSEG, $start2
+ jmpw $BOOTSEG, $start2
start2:
movw %cs, %ax
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists