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From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Michael Neuling <mikey@neuling.org>,
	Daniel Axtens <dja@axtens.net>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	linuxppc-dev@lists.ozlabs.org, kasan-dev@googlegroups.com,
	aneesh.kumar@linux.ibm.com, bsingharora@gmail.com
Subject: Re: [PATCH v7 4/4] powerpc: Book3S 64-bit "heavyweight" KASAN support
Date: Mon, 17 Feb 2020 07:45:46 +0100	[thread overview]
Message-ID: <a060e08e-c119-0d37-d220-409b3d7539d3@c-s.fr> (raw)
In-Reply-To: <66bd9d8eb682cda2d22bea0fd4035ea8e0a3c1fb.camel@neuling.org>



Le 17/02/2020 à 00:08, Michael Neuling a écrit :
> Daniel.
> 
> Can you start this commit message with a simple description of what you are
> actually doing? This reads like you've been on a long journey to Mordor and
> back, which as a reader of this patch in the long distant future, I don't care
> about. I just want to know what you're implementing.
> 
> Also I'm struggling to review this as I don't know what software or hardware
> mechanisms you are using to perform sanitisation.

KASAN is standard, it's simply using GCC ASAN in kernel mode, ie kernel 
is built with -fsanitize=kernel-address 
(https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html)

You have more details there: 
https://www.kernel.org/doc/html/latest/dev-tools/kasan.html

Christophe

      reply	other threads:[~2020-02-17  6:47 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-13  0:47 [PATCH v7 0/4] KASAN for powerpc64 radix Daniel Axtens
2020-02-13  0:47 ` [PATCH v7 1/4] kasan: define and use MAX_PTRS_PER_* for early shadow tables Daniel Axtens
2020-02-13  0:47 ` [PATCH v7 2/4] kasan: Document support on 32-bit powerpc Daniel Axtens
2020-02-13  0:47 ` [PATCH v7 3/4] powerpc/mm/kasan: rename kasan_init_32.c to init_32.c Daniel Axtens
2020-02-13  0:47 ` [PATCH v7 4/4] powerpc: Book3S 64-bit "heavyweight" KASAN support Daniel Axtens
2020-02-13  6:08   ` Christophe Leroy
2020-02-13 11:36   ` Christophe Leroy
2020-03-06 13:09     ` Daniel Axtens
2020-02-16 23:08   ` Michael Neuling
2020-02-17  6:45     ` Christophe Leroy [this message]

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