linux-kernel - Re: [patch 2/2] x86: lds - Use THREAD

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Message-ID: <47B88FAA.9080603@zytor.com>
Date:	Sun, 17 Feb 2008 11:48:58 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Cyrill Gorcunov <gorcunov@...il.com>
CC:	Sam Ravnborg <sam@...nborg.org>, ak@...e.de, mingo@...e.hu,
	tglx@...utronix.de, linux-kernel@...r.kernel.org
Subject: Re: [patch 2/2] x86: lds - Use THREAD_SIZE instead of numeric	constant

Cyrill Gorcunov wrote:
> 
> Yes Sam, I've read Peter and Ingo comments on this patch
> (actually I sent the same patch maybe week ago and Peter
> and Ingo told me that we use %fs,%gs now for stack) but
> as I pointed in comment - this alignment is still using
> by Xen and lguest and even x86. So - it would be really
> usefull for me if someone give me the last point - YES we
> use such an alignment for stack, NO - we don't use it at all.
> I was trying to hadle this myself - but I'm not a specialist
> in this area you know ;)
> 

It bugs me quite a bit that paravirt clients contain this hack 
open-coded, but that's not *your* fault.  There probably should be a 
macro to encapsulate the stack pointer location for a specific thread.

	-hpa
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