linux-kernel - Re: [PATH 1/1] Kexec jump - v2

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Message-ID: <20070805185008.GD1758@elf.ucw.cz>
Date:	Sun, 5 Aug 2007 20:50:08 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Huang, Ying" <ying.huang@...el.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	nigel@...el.suspend2.net, "Rafael J. Wysocki" <rjw@...k.pl>,
	Jeremy Maitin-Shepard <jbms@....edu>,
	Alan Stern <stern@...land.harvard.edu>,
	Andrew Morton <akpm@...ux-foundation.org>, david@...g.hm,
	linux-kernel@...r.kernel.org, linux-pm@...ts.linux-foundation.org,
	Kexec Mailing List <kexec@...ts.infradead.org>
Subject: Re: [PATH 1/1] Kexec jump - v2 - kexec jump

Hi!

> > > This patch implement the functionality of jumping from kexeced kernel
> > > to original kernel.
> > > 
> > > A new reboot command named LINUX_REBOOT_CMD_KJUMP is defined to
> > > trigger the jumping to (executing) the new kernel or jumping back to
> > > the original kernel.
> > 
> > Could we get two reboot commands? Exec loaded kernel seems to be quite
> > different operation than "jump back".
> 
> Exec loaded kernel for jumping back is also different from exec loaded
> kernel normally.
> 
> Maybe the two reboot operations in kexec jump can be seen as "jump to"
> and "jump back"?

Yes, that would be better.

> Document will be added in next version too.
> 
> This parameter is used for kernel-to-kernel communication. But now, it
> must be setup by user, as in usage guide.

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