linux-kernel - Re: [PATCH 9/20] x86_64: 64bit PIC SMP trampoline

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Message-ID: <20061118003352.GA4321@in.ibm.com>
Date:	Fri, 17 Nov 2006 19:33:52 -0500
From:	Vivek Goyal <vgoyal@...ibm.com>
To:	Pavel Machek <pavel@....cz>
Cc:	linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Reloc Kernel List <fastboot@...ts.osdl.org>,
	ebiederm@...ssion.com, akpm@...l.org, ak@...e.de, hpa@...or.com,
	magnus.damm@...il.com, lwang@...hat.com, dzickus@...hat.com,
	rjw@...k.pl
Subject: Re: [PATCH 9/20] x86_64: 64bit PIC SMP trampoline

On Sat, Nov 18, 2006 at 01:27:10AM +0100, Pavel Machek wrote:
> Hi!
> 
> > that long mode is supported.  Asking if long mode is implemented is
> > down right silly but we have traditionally had some of these checks,
> > and they can't hurt anything.  So when the totally ludicrous happens
> > we just might handle it correctly.
> 
> Well, it is silly, and it is 50 lines of dense assembly. can we get
> rid of it or get it shared with bootup version?
> 

Hi Pavel,

Last patch in the series (patch 20)  already does that. That patch just
puts all the assembly at one place which everybody shares. 

I know it is bad to introduce and delete your own code, but I kept that
patch as last patch as all the other patches have got fair bit of testing
in RHEL kernels and I wanted to make sure that if last patch breaks something
problem can be isolated relatively easily.

Thanks
Vivek
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