[PATCH v3 0/8] Add a random number generator uclass

Sughosh Ganu
2019-12-13T07:14:19Z

Add a random number generator(rng) uclass to facilitate adding drivers
for rng devices. I plan to add an implementation of the
EFI_RNG_PROTOCOL, which would get the random number from the rng
uclass -- the protocol would be used by the efi stub for getting a
random number for the kaslr feature.

The patch series also adds a driver for the rng device found on the
stm32mp1 and qemu platforms. A dummy rng driver for sandbox has also
been added, along with the unit test for the rng uclass.

Changes since V2:
* Add a driver for the virtio-rng device on qemu platform

Changes since V1:
* Add a SPDX header in rng.h
* Change the UCLASS_DRIVER name from hwrng to rng, consistent with the
rest of the naming convention
* Handle review comment from Patrice Chotard

Sughosh Ganu (8):
dm: rng: Add random number generator(rng) uclass
clk: stm32mp1: Add a clock entry for RNG1 device
stm32mp1: rng: Add a driver for random number generator(rng) device
configs: stm32mp15: Enable random number generator(rng) device
sandbox: rng: Add a random number generator(rng) driver
configs: sandbox: Enable random number generator(rng) device
test: rng: Add basic test for random number generator(rng) uclass
virtio: rng: Add a random number generator(rng) driver

arch/sandbox/dts/test.dts | 4 +
configs/sandbox64_defconfig | 2 +
configs/sandbox_defconfig | 2 +
configs/stm32mp15_basic_defconfig | 2 +
configs/stm32mp15_optee_defconfig | 2 +
configs/stm32mp15_trusted_defconfig | 2 +
drivers/Kconfig | 2 +
drivers/Makefile | 1 +
drivers/clk/clk_stm32mp1.c | 1 +
drivers/rng/Kconfig | 21 +++++
drivers/rng/Makefile | 8 ++
drivers/rng/rng-uclass.c | 23 ++++++
drivers/rng/sandbox_rng.c | 36 ++++++++
drivers/rng/stm32mp1_rng.c | 158 ++++++++++++++++++++++++++++++++++++
drivers/virtio/Kconfig | 6 ++
drivers/virtio/Makefile | 1 +
drivers/virtio/virtio-uclass.c | 1 +
drivers/virtio/virtio_rng.c | 72 ++++++++++++++++
include/dm/uclass-id.h | 1 +
include/rng.h | 30 +++++++
include/virtio.h | 4 +-
test/dm/Makefile | 1 +
test/dm/rng.c | 26 ++++++
23 files changed, 405 insertions(+), 1 deletion(-)
create mode 100644 drivers/rng/Kconfig
create mode 100644 drivers/rng/Makefile
create mode 100644 drivers/rng/rng-uclass.c
create mode 100644 drivers/rng/sandbox_rng.c
create mode 100644 drivers/rng/stm32mp1_rng.c
create mode 100644 drivers/virtio/virtio_rng.c
create mode 100644 include/rng.h
create mode 100644 test/dm/rng.c

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