linux-kernel - Re: live kernel upgrades (was: live kernel patching design)

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Date:	Mon, 23 Feb 2015 12:08:14 +0100
From:	Vojtech Pavlik <vojtech@...e.com>
To:	Richard Weinberger <richard.weinberger@...il.com>
Cc:	Jiri Kosina <jkosina@...e.cz>,
	Arjan van de Ven <arjanvandeven@...il.com>,
	Dave Airlie <airlied@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Josh Poimboeuf <jpoimboe@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Seth Jennings <sjenning@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Borislav Petkov <bp@...en8.de>, live-patching@...r.kernel.org
Subject: Re: live kernel upgrades (was: live kernel patching design)

On Mon, Feb 23, 2015 at 11:42:17AM +0100, Richard Weinberger wrote:

> > Of course, if you are random Joe User, you can do whatever you want, i.e.
> > also compile your own home-brew patches and apply them randomly and brick
> > your system that way. But that's in no way different to what you as Joe
> > User can do today; there is nothing that will prevent you from shooting
> > yourself in a foot if you are creative.
> 
> Sorry if I ask something that got already discussed, I did not follow
> the whole live-patching discussion.
> 
> How much of the userspace tools will be public available?
> With live-patching mainline the kernel offers the mechanism, but
> random Joe user still needs
> the tools to create good live patches.

All the tools for kGraft and kpatch are available in public git
repositories.

Also, while kGraft has tools to automate the generation of patches,
these are generally not required to create a patch.

-- 
Vojtech Pavlik
Director SUSE Labs
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