linux-kernel - Re: [RFC PATCH 00/10] implement KASLR for powerpc/fsl

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Message-ID: <201907260914.E37F9B041@keescook>
Date:   Fri, 26 Jul 2019 09:15:57 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Jason Yan <yanaijie@...wei.com>
Cc:     mpe@...erman.id.au, linuxppc-dev@...ts.ozlabs.org,
        diana.craciun@....com, christophe.leroy@....fr,
        benh@...nel.crashing.org, paulus@...ba.org, npiggin@...il.com,
        kernel-hardening@...ts.openwall.com, linux-kernel@...r.kernel.org,
        wangkefeng.wang@...wei.com, yebin10@...wei.com,
        thunder.leizhen@...wei.com, jingxiangfeng@...wei.com,
        fanchengyang@...wei.com
Subject: Re: [RFC PATCH 00/10] implement KASLR for powerpc/fsl_booke/32

On Fri, Jul 26, 2019 at 03:20:26PM +0800, Jason Yan wrote:
> The boot code only maps one 64M zone at early start. If the kernel crosses
> two 64M zones, we need to map two 64M zones. Keep the kernel in one 64M
> saves a lot of complex codes.

Ah-ha. Gotcha. Thanks for the clarification.

> Yes, if this feature can be accepted, I will start to work with powerpc64
> KASLR and other things like CONFIG_RANDOMIZE_MEMORY.

Awesome. :)

-- 
Kees Cook