linux-kernel - Re: [PATCH -mm] kexec jump -v9

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Message-ID: <20080312194751.GF13549@redhat.com>
Date:	Wed, 12 Mar 2008 15:47:51 -0400
From:	Vivek Goyal <vgoyal@...hat.com>
To:	"Huang, Ying" <ying.huang@...el.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Pavel Machek <pavel@....cz>, nigel@...el.suspend2.net,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-pm@...ts.linux-foundation.org,
	Kexec Mailing List <kexec@...ts.infradead.org>
Subject: Re: [PATCH -mm] kexec jump -v9

On Wed, Mar 12, 2008 at 09:45:26AM +0800, Huang, Ying wrote:

[..]
> > I have thought through it again and try to put together some of the
> > new kexec options we can introduce to make the whole thing work. I am 
> > considering a simple case where a user boots the kernel A and then
> > launches kernel B using "kexec --load-preseve-context". Now a user
> > might save the hibernated image or might want to come back to A.
> > 
> > - kexec -l <kernel-image>
> >         Normal kexec functionality. Boot a new kernel, without preserving
> >         existing kernel's context.
> > 
> > - kexec --load-preserve-context <kernel-image>
> >         Boot a new kernel while preserving existing kernel's context.
> > 
> >         Will be used for booting kernel B for the first time.
> > 
> > - kexec --load-resume-image <resumable-core>
> 
> In original kexec-tools, this can be done through:
> kexec -l --args-none <resumable-core>
> 
> Do you need to define an alias for it?

Ok, we can get rid of --load-resume-image and go by the Eric's idea
of detecting image type and taking action accordingly.

Thanks
Vivek
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