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

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Date:	Mon, 30 Apr 2007 15:03:54 +1000
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	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 Sun, 2007-04-29 at 21:38 -0700, H. Peter Anvin wrote:
> Rusty Russell wrote:
> > 
> > Dammit, Eric, you spend a lot of time using words like "insane" where
> > you mean we didn't do everything all at once.
> > 
> > It's *not* clear that using %esi is sane, but nothing in the current
> > code prevents that.
> 
> Why not?

(I assume you mean why isn't it clear?)

Because VMI uses the presence of a ROM to indicate it's not native.  KVM
uses a magic MSR IIRC.

I think it makes sense for lguest to change over, tho.  Patches welcome
8)

Rusty.


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