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Message-ID: <516CB937.2000305@zytor.com>
Date: Mon, 15 Apr 2013 19:36:39 -0700
From: "H. Peter Anvin" <hpa@...or.com>
To: Yinghai Lu <yinghai@...nel.org>
CC: Kees Cook <keescook@...omium.org>, Eric Northup <digitaleric@...gle.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
the arch/x86 maintainers <x86@...nel.org>,
Jarkko Sakkinen <jarkko.sakkinen@...el.com>,
Matthew Garrett <mjg@...hat.com>,
Matt Fleming <matt.fleming@...el.com>,
Dan Rosenberg <drosenberg@...curity.com>,
Julien Tinnes <jln@...gle.com>, Will Drewry <wad@...omium.org>
Subject: Re: [PATCH 6/6] x86: kaslr: relocate base offset at boot
On 04/15/2013 03:00 PM, Yinghai Lu wrote:
>
> looks you are trying redo the work for bootloader to pick loaded phys addr.
>
Well, that is exactly what they are doing. On top of that they also
need to randomize the 64-bit virtual mapping.
I wonder if we need a bootloader bit to inhibit kaslr in addition to the
command line...
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
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