From: Ali Saidi <alisaidi@amazon.com>
To: <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-crypto@vger.kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>, Matt Mackall <mpm@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Arnd Bergmann <arnd@arndb.de>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
Ali Saidi <alisaidi@amazon.com>,
Ron Rindjunsky <ronrindj@amazon.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
David Woodhouse <dwmw@amazon.co.uk>
Subject: [PATCH 0/3] Add support for Graviton TRNG
Date: Tue, 4 Jun 2019 20:30:57 +0000 [thread overview]
Message-ID: <20190604203100.15050-1-alisaidi@amazon.com> (raw)
AWS Graviton based systems provide an Arm SMC call in the vendor defined
hypervisor region to read random numbers from a HW TRNG and return them to the
guest.
We've observed slower guest boot and especially reboot times due to lack of
entropy and providing access to a TRNG is meant to address this.
Ali Saidi (3):
arm/arm64: Add smccc hypervisor service identifiers
arm64: export acpi_psci_use_hvc
hwrng: Add support for AWS Graviton TRNG
MAINTAINERS | 6 ++
arch/arm64/kernel/acpi.c | 1 +
drivers/char/hw_random/Kconfig | 13 ++++
drivers/char/hw_random/Makefile | 1 +
drivers/char/hw_random/graviton-rng.c | 123 ++++++++++++++++++++++++++++++++++
include/linux/arm-smccc.h | 2 +
6 files changed, 146 insertions(+)
create mode 100644 drivers/char/hw_random/graviton-rng.c
--
2.15.3.AMZN
next reply other threads:[~2019-06-04 20:31 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-04 20:30 Ali Saidi [this message]
2019-06-04 20:30 ` [PATCH 1/3] arm/arm64: Add smccc hypervisor service identifiers Ali Saidi
2019-06-04 20:30 ` [PATCH 2/3] arm64: export acpi_psci_use_hvc Ali Saidi
2019-06-05 9:40 ` Sudeep Holla
2019-06-05 10:38 ` Mark Rutland
2019-06-05 11:02 ` Sudeep Holla
2019-06-05 16:07 ` Saidi, Ali
2019-06-04 20:31 ` [PATCH 3/3] hwrng: Add support for AWS Graviton TRNG Ali Saidi
2019-06-05 12:20 ` [PATCH 0/3] Add support for " Will Deacon
2019-06-07 12:58 ` Saidi, Ali
2019-06-28 18:05 ` Saidi, Ali
2019-07-01 8:28 ` Will Deacon
2019-07-01 17:02 ` Will Deacon
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