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Date: Thu, 17 Sep 2020 09:11:08 +0100
From: Will Deacon <will@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
 linux-arch@vger.kernel.org, Dave P Martin <Dave.Martin@arm.com>,
 Vincenzo Frascino <vincenzo.frascino@arm.com>,
 Szabolcs Nagy <szabolcs.nagy@arm.com>,
 Kevin Brodsky <kevin.brodsky@arm.com>,
 Andrey Konovalov <andreyknvl@google.com>,
 Peter Collingbourne <pcc@google.com>,
 Andrew Morton <akpm@linux-foundation.org>, libc-alpha@sourceware.org
Subject: Re: [PATCH v9 29/29] arm64: mte: Add Memory Tagging Extension
 documentation
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On Fri, Sep 04, 2020 at 11:30:29AM +0100, Catalin Marinas wrote:
> From: Vincenzo Frascino <vincenzo.frascino@arm.com>
> 
> Memory Tagging Extension (part of the ARMv8.5 Extensions) provides
> a mechanism to detect the sources of memory related errors which
> may be vulnerable to exploitation, including bounds violations,
> use-after-free, use-after-return, use-out-of-scope and use before
> initialization errors.
> 
> Add Memory Tagging Extension documentation for the arm64 linux
> kernel support.
> 
> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
> Co-developed-by: Catalin Marinas <catalin.marinas@arm.com>
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> Acked-by: Szabolcs Nagy <szabolcs.nagy@arm.com>

I'm taking this to mean that Szabolcs is happy with the proposed ABI --
please shout if that's not the case!

Wasn't there a man page kicking around too? Would be good to see that
go upstream (to the manpages project, of course).

Will