linux-kernel - Re: [PATCH 2/3] utrace core

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Message-ID: <20090321163700.GA22292@cs.unibo.it>
Date:	Sat, 21 Mar 2009 17:37:00 +0100
From:	Renzo Davoli <renzo@...unibo.it>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Roland McGrath <roland@...hat.com>, utrace-devel@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] utrace core

On Sat, Mar 21, 2009 at 03:34:57PM +0100, Ingo Molnar wrote:
> 
> * Renzo Davoli <renzo@...unibo.it> wrote:
> 
> > Tracing does not mean only debug. Some tracing facilities can be 
> > used for virtualization. For example User-Mode Linux is based on 
> > ptrace.
> > 
> > I have a prototype of kernel module for virtualization (kmview) 
> > based on utrace. [...]
> 
> Hm, i cannot find the source code. Can it be downloaded from 
> somewhere?
Sure! kmview is not included in our Debian packages yet as it relies on 
(still) non mainstream features (utrace), but the code is available on 
our view-os svn repository.

Check out:
svn co https://view-os.svn.sourceforge.net/svnroot/view-os view-os 

More specifically to browse the code/specifications:
The kmview device protocol is here:
http://wiki.virtualsquare.org/index.php/KMview_module_interface_specifications
The kernel module itself is here:
http://view-os.svn.sourceforge.net/viewvc/view-os/trunk/kmview-kernel-module/
The VMM userland application share most of the code with
umview, the source code for both is here:
http://view-os.svn.sourceforge.net/viewvc/view-os/trunk/xmview-os/xmview/

kmview kernel module (current version) needs the following patches:
utrace
http://www.mail-archive.com/utrace-devel@redhat.com/msg00654.html
http://www.mail-archive.com/utrace-devel@redhat.com/msg00655.html
I am trying to keep everything up to date, but the whole stuff is
evolving in a quite fast way.

Everything has been released under GPLv2.

	renzo
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