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Date:   Mon, 2 Aug 2021 11:40:40 +0100
From:   Mark Brown <broonie@kernel.org>
To:     Andre Przywara <andre.przywara@arm.com>
Cc:     Matt Mackall <mpm@selenic.com>,
        Herbert Xu <herbert@gondor.apana.org.au>,
        Mark Rutland <mark.rutland@arm.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Sudeep Holla <sudeep.holla@arm.com>,
        linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Ard Biesheuvel <ardb@kernel.org>,
        Will Deacon <will@kernel.org>, Ali Saidi <alisaidi@amazon.com>,
        Jon Nettleton <jon@solid-run.com>
Subject: Re: [PATCH v4 0/2] hwrng: Add Arm SMCCC TRNG based driver
Message-ID: <20210802104040.GA4668@sirena.org.uk>
References: <20210731204845.21196-1-andre.przywara@arm.com>
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On Sat, Jul 31, 2021 at 09:48:43PM +0100, Andre Przywara wrote:
> The "Arm True Random Number Generator Firmware Interface"[1] provides
> an SMCCC based interface to a true hardware random number generator.
> So far we are using that in arch_get_random_seed(), but it might be
> useful to expose the entropy through the /dev/hwrng device as well. This
> allows to assess the quality of the implementation, by using "rngtest"
> from the rng-tools package, for example.

Reviewed-by: Mark Brown <broonie@kernel.org>

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