linux-kernel - Re: [PATCH 00/16] [RFC PATCH] Signed kexec support

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Message-ID: <20130923171515.GD10812@redhat.com>
Date:	Mon, 23 Sep 2013 13:15:15 -0400
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Andrea Adami <andrea.adami@...il.com>
Cc:	Mimi Zohar <zohar@...ux.vnet.ibm.com>, matthew.garrett@...ula.com,
	Greg KH <greg@...ah.com>, d.kasatkin@...sung.com,
	kexec@...ts.infradead.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-security-module@...r.kernel.org, ebiederm@...ssion.com,
	"H. Peter Anvin" <hpa@...or.com>, akpm@...ux-foundation.org
Subject: Re: [PATCH 00/16] [RFC PATCH] Signed kexec support

On Wed, Sep 18, 2013 at 04:51:21PM +0200, Andrea Adami wrote:
> Hello,
> 
> as one of the developers of kexecboot, a kexec-based
> linux-as-bootloader, I'm following with interest this thread.
> FWIW since the beginning we are compiling kexec-tools statically
> against klibc for size constraints.

Hi Andrea,

Good to know about kexecboot.

FWIW, recently we discussed the kexec/kdump with secureboot issue
at Linux Plumbers and Greg KH suggested that it will be simpler if
we implement a new system call which does the job of loading new
kernel. Effectively that means reimplementing /sbin/kexec in kernel.
This will also mean maintaining two code bases for some time and
slowly deprecating one over a period of time.

I will probably start with something  small and post proof of concept
patches for review and see how does that go. This is just heads up 
on what I am planning to do.

Thanks
Vivek
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