linux-kernel - Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage

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Message-ID: <4633B0BB.6080600@zytor.com>
Date:	Sat, 28 Apr 2007 13:38:19 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	Jeff Garzik <jeff@...zik.org>, Andi Kleen <ak@...e.de>,
	patches@...-64.org, Vivek Goyal <vgoyal@...ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for
 relocatable bzImage

Eric W. Biederman wrote:
> 
> The boot protocol change is in 2.6.21 for arch/i386.
> 
> HPA looked at it a while ago.
> 
> All it does is set a flag that tells a bootloader.
> "Hey. I can run when loaded a non-default address, and this is what
>  you have to align me to."
> 
> All relocation processing happens in the kernel itself.
> 
> So it is all pretty trivial.
> 

Indeed.  We *did* find some problems with Grub with the early versions,
those were addressed.

	-hpa
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