linux-kernel - Re: [PATCH] THE LINUX/I386 BOOT PROTOCOL

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Message-ID: <44F29BCD.3080408@zytor.com>
Date:	Mon, 28 Aug 2006 00:31:25 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Alon Bar-Lev <alon.barlev@...il.com>
CC:	Andi Kleen <ak@...e.de>, Andrew Morton <akpm@...l.org>,
	linux-kernel@...r.kernel.org, johninsd@....rr.com,
	Matt_Domsch@...l.com
Subject: Re: [PATCH] THE LINUX/I386 BOOT PROTOCOL - Breaking the 256 limit
 (ping)

Alon Bar-Lev wrote:
> 
> Better patch.
> I've noticed that this code sets esi but then reference using si... So 
> fixed to
> use esi (It worked so far since we are in low area... But I think using 
> the same
> register type is cleaner...)
> 

Totally pointless since we're in 16-bit mode (as is the "incl %esi")... 
I guess it's "better" in the sense that if we run out of that we'll 
crash due to a segment overrun... maybe (some BIOSes leave us 
unknowningly in big real mode...)

	-hpa
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