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Date:   Fri, 19 Oct 2018 12:38:21 +0100
From:   Catalin Marinas <catalin.marinas@arm.com>
To:     Kristina Martsenko <kristina.martsenko@arm.com>
Cc:     linux-arm-kernel@lists.infradead.org,
        Mark Rutland <mark.rutland@arm.com>,
        linux-arch@vger.kernel.org, Andrew Jones <drjones@redhat.com>,
        Jacob Bramley <jacob.bramley@arm.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        Marc Zyngier <marc.zyngier@arm.com>,
        Adam Wallis <awallis@codeaurora.org>,
        "Suzuki K . Poulose" <suzuki.poulose@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Christoffer Dall <christoffer.dall@arm.com>,
        kvmarm@lists.cs.columbia.edu,
        Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>,
        Amit Kachhap <Amit.Kachhap@arm.com>,
        Dave P Martin <Dave.Martin@arm.com>,
        linux-kernel@vger.kernel.org, Kees Cook <keescook@chromium.org>
Subject: Re: [RFC 12/17] arm64: move ptrauth keys to thread_info
Message-ID: <20181019113820.jly74g2kk3cxf3yp@mbp>
References: <20181005084754.20950-1-kristina.martsenko@arm.com>
 <20181005084754.20950-13-kristina.martsenko@arm.com>
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On Fri, Oct 05, 2018 at 09:47:49AM +0100, Kristina Martsenko wrote:
> From: Mark Rutland <mark.rutland@arm.com>
> 
> To use pointer authentication in the kernel, we'll need to switch keys
> in the entry assembly. This patch moves the pointer auth keys into
> thread_info to make this possible.
> 
> There should be no functional change as a result of this patch.
> 
> Signed-off-by: Mark Rutland <mark.rutland@arm.com>
> Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com>

Can we actually fold this into patch 7? It also leaves the door open to
allowing per-thread keys.

-- 
Catalin