linux-kernel - Re: [rft] s2ram wakeup moves to .c, could fix few machines

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Message-ID: <20080208070419.GA4544@ucw.cz>
Date:	Fri, 8 Feb 2008 07:04:19 +0000
From:	Pavel Machek <pavel@....cz>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	kernel list <linux-kernel@...r.kernel.org>,
	Linux-pm mailing list <linux-pm@...ts.osdl.org>
Subject: Re: [rft] s2ram wakeup moves to .c, could fix few machines

Hi!

> >I really need the entry point to be at offset 0, so 
> >that I can get
> >pointers to my data. I could not figure out how to do 
> >it any other
> >way. And if 0 is taken, I thought I'd put header at the 
> >end.
> >
> 
> Why not just put the structure at 0, and put pointers in 
> the structure to everything else you need?

segments:offsets rear its ugly head here. I need %ds to point to my
data, and the way to do it is copy it from %cs; that needs start to be
at 0.

If you can find a solution that does not need this (some
segment/offset arithmetics at beggining of wakeup?) we could use it,
but I was lost between relocations.

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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