linux-kernel - Re: [PATCH v7 9/10] KVM: arm64: docs: document KVM support of pointer authentication

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Message-ID: <23e4a9d4-e9e1-2c1f-32ce-e7fd96080437@arm.com>
Date:   Mon, 25 Mar 2019 20:05:49 +0000
From:   Kristina Martsenko <kristina.martsenko@....com>
To:     Amit Daniel Kachhap <amit.kachhap@....com>,
        linux-arm-kernel@...ts.infradead.org
Cc:     Christoffer Dall <christoffer.dall@....com>,
        Marc Zyngier <marc.zyngier@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Andrew Jones <drjones@...hat.com>,
        Dave Martin <Dave.Martin@....com>,
        Ramana Radhakrishnan <ramana.radhakrishnan@....com>,
        kvmarm@...ts.cs.columbia.edu, linux-kernel@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        James Morse <james.morse@....com>,
        Julien Thierry <julien.thierry@....com>
Subject: Re: [PATCH v7 9/10] KVM: arm64: docs: document KVM support of pointer
 authentication

On 19/03/2019 08:30, Amit Daniel Kachhap wrote:
> This adds sections for KVM API extension for pointer authentication.
> A brief description about usage of pointer authentication for KVM guests
> is added in the arm64 documentations.
> 
> Signed-off-by: Amit Daniel Kachhap <amit.kachhap@....com>
> Cc: Mark Rutland <mark.rutland@....com>
> Cc: Christoffer Dall <christoffer.dall@....com>
> Cc: Marc Zyngier <marc.zyngier@....com>
> Cc: kvmarm@...ts.cs.columbia.edu

I think it makes sense to also update the Kconfig symbol description for
CONFIG_ARM64_PTR_AUTH, since it currently only mentions userspace
support, but now the option also enables KVM guest support.

It's also worth mentioning that CONFIG_ARM64_VHE=y is required for guest
support.

Thanks,
Kristina