From: Sumit Garg <sumit.garg@linaro.org>
To: linux-crypto@vger.kernel.org, devicetree@vger.kernel.org
Cc: mpm@selenic.com, herbert@gondor.apana.org.au, robh+dt@kernel.org,
mark.rutland@arm.com, arnd@arndb.de, gregkh@linuxfoundation.org,
jens.wiklander@linaro.org, daniel.thompson@linaro.org,
ard.biesheuvel@linaro.org, bhsharma@redhat.com,
tee-dev@lists.linaro.org, Sumit Garg <sumit.garg@linaro.org>
Subject: [PATCH v1 0/2] Add OP-TEE based hwrng driver
Date: Thu, 27 Dec 2018 16:37:09 +0530 [thread overview]
Message-ID: <1545908831-25910-1-git-send-email-sumit.garg@linaro.org> (raw)
On ARM SoC's with TrustZone enabled, peripherals like entropy sources
might not be accessible to normal world (linux in this case) and rather
accessible to secure world (OP-TEE in this case) only. So this driver
aims to provides a generic interface to OP-TEE based random number
generator service.
Example case is Developerbox based on Socionext's Synquacer SoC [1]
which provides 7 thermal sensors accessible from secure world only which
could be used as entropy sources (thermal/measurement noise).
[1] https://www.96boards.org/product/developerbox/
Sumit Garg (2):
dt/bindings: add bindings for optional optee rng-uuid property
hwrng: add OP-TEE based rng driver
.../bindings/arm/firmware/linaro,optee-tz.txt | 4 +
MAINTAINERS | 5 +
drivers/char/hw_random/Kconfig | 15 ++
drivers/char/hw_random/Makefile | 1 +
drivers/char/hw_random/optee-rng.c | 273 +++++++++++++++++++++
5 files changed, 298 insertions(+)
create mode 100644 drivers/char/hw_random/optee-rng.c
--
2.7.4
next reply other threads:[~2018-12-27 11:07 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-27 11:07 Sumit Garg [this message]
2018-12-27 11:07 ` [PATCH v1 1/2] dt/bindings: add bindings for optional optee rng-uuid property Sumit Garg
2018-12-27 13:39 ` Ard Biesheuvel
2018-12-28 9:11 ` Sumit Garg
2019-01-03 17:14 ` Daniel Thompson
2019-01-04 6:39 ` Sumit Garg
2019-01-04 11:01 ` Jens Wiklander
2019-01-04 12:01 ` Sumit Garg
2019-01-04 13:03 ` Jens Wiklander
2019-01-07 5:32 ` Sumit Garg
2019-01-07 5:59 ` Ard Biesheuvel
2019-01-07 6:46 ` Sumit Garg
2019-01-03 16:20 ` Rob Herring
2018-12-27 11:07 ` [PATCH v1 2/2] hwrng: add OP-TEE based rng driver Sumit Garg
2018-12-27 18:28 ` Ard Biesheuvel
2018-12-28 9:58 ` Sumit Garg
2018-12-28 10:38 ` Ard Biesheuvel
2018-12-28 13:03 ` Sumit Garg
2018-12-28 14:46 ` Jens Wiklander
2018-12-30 14:59 ` Vesa Jääskeläinen
2018-12-31 10:35 ` Sumit Garg
2018-12-31 10:24 ` Sumit Garg
2019-01-02 8:04 ` Jens Wiklander
2019-01-02 8:26 ` Bhupesh Sharma
2019-01-02 10:12 ` Sumit Garg
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