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

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Date:	Tue, 01 May 2007 17:34:28 +1000
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"H. Peter Anvin" <hpa@...or.com>, Jeff Garzik <jeff@...zik.org>,
	Andi Kleen <ak@...e.de>, patches@...-64.org,
	Vivek Goyal <vgoyal@...ibm.com>, linux-kernel@...r.kernel.org,
	virtualization <virtualization@...ts.linux-foundation.org>
Subject: Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for
	relocatable bzImage

On Mon, 2007-04-30 at 22:37 -0700, Jeremy Fitzhardinge wrote:
> Eric W. Biederman wrote:
> > I'm not going to worry about going farther until the patches in flight
> > settle down a little bit, but this looks promising.
> >   
> 
> Is there any value in adding an "early-putchar" function pointer into
> the structure somehow?  I could easily arrange for the domain builder to
> put a bit of code into the domain so that the early boot code can emit
> something.

Well there aren't that many instructions between startup_32 and
lguest_init at the moment, but I guess if we end up going through
bzImage decompression it makes more sense...

Rusty.


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