linux-kernel - Re: [PATCH] reboot: disable nonboot CPUs

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Message-ID: <CAGXu5jKqaddf3T+LMS-6VMgH98JbMG-NsjB8uajNw19R7OAfig@mail.gmail.com>
Date:	Thu, 14 Jun 2012 14:41:48 -0700
From:	Kees Cook <keescook@...omium.org>
To:	Per Forlin <per.forlin@...ricsson.com>
Cc:	linux-kernel@...r.kernel.org, gorcunov@...nvz.org,
	serge.hallyn@...onical.com,
	Linus Walleij <linus.walleij@...aro.org>,
	Per Forlin <per.lkml@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] reboot: disable nonboot CPUs

On Thu, Jun 14, 2012 at 2:25 PM, Per Forlin <per.forlin@...ricsson.com> wrote:
> Disable the nonboot CPUs to safely migrate tasks and interrupts
> to the boot CPU. This will prevent the nonboot CPUs to
> interfer or block the boot CPU from being able to reboot
> the system successfully.

Reviewed-by: Kees Cook <keescook@...omium.org>

This seems reasonable to me, though I haven't looked too deeply at the
reboot path.

-Kees

-- 
Kees Cook
Chrome OS Security
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