linux-kernel - Re: Extending boot protocol & bzImage for paravirt

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Date:	Sat, 26 May 2007 17:14:40 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
CC:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Chris Wright <chrisw@...s-sol.org>,
	Virtualization Mailing List <virtualization@...ts.osdl.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Extending boot protocol & bzImage for paravirt_ops

Jeremy Fitzhardinge wrote:
> 
> I'd really prefer to keep an intact embedded ELF file rather than have a
> semi-ELF file.  That way it would be easier to simply load the image and
> point the normal ELF machinery at some offset into the file rather than
> having to have a special handler for "\x7fBZE" or whatever.
> 

Pardon me for saying it, but it's hardly a hardship to add support for a
single additional constant in existing code.  I'm starting to think this
argument is approaching not just the silly, but downright ridiculous.

Another option is to have the ELF header at a nonzero offset.

	-hpa
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