linux-kernel - Re: [PATCH 0/2] make kASLR vs hibernation boot-time selectable

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Message-ID: <1567399.Tu2Noof0fr@vostro.rjw.lan>
Date:	Thu, 12 Jun 2014 22:13 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Kees Cook <keescook@...omium.org>, linux-kernel@...r.kernel.org,
	Randy Dunlap <rdunlap@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	linux-doc@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH 0/2] make kASLR vs hibernation boot-time selectable

On Thursday, June 12, 2014 12:48:50 PM H. Peter Anvin wrote:
> On 06/12/2014 12:46 PM, Kees Cook wrote:
> > Distros want to be able to offer CONFIG_RANDOMIZE_BASE as well as
> > CONFIG_HIBERNATION in a single kernel. Instead of making kASLR depend on
> > !HIBERNATION at compile time, allow kaslr to be selectable at boot time
> > (via "kaslr" kernel command line), which will disable hibernation in the
> > kernel. In this way the end user can choose which feature they want more
> > with hibernation continuing to stay enabled by default (no surprises).
> 
> Any way we can make them work together instead?

Yeah, and that too.

Rafael

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