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Date: Sun, 29 Apr 2007 10:20:24 +0530
From: Vivek Goyal <vgoyal@in.ibm.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>, Jeff Garzik <jeff@garzik.org>,
       Andi Kleen <ak@suse.de>, patches@x86-64.org,
       linux-kernel@vger.kernel.org
Subject: Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
Message-ID: <20070429045024.GA27000@in.ibm.com>
Reply-To: vgoyal@in.ibm.com
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On Sat, Apr 28, 2007 at 02:46:18PM -0600, Eric W. Biederman wrote:
> "H. Peter Anvin" <hpa@zytor.com> writes:
> 
> > 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.
> 
> We found some failures that weren't root caused so we went to this
> more conservative version.
> 
> RHEL5 is actually shipping the original version of these patches if I
> recall correctly.
> 

Yes, RHEL5 is shipping original version of patches where an where and ELF
header has been added to describe bzImage.

Thanks
Vivek