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The Zkr ISA extension (ratified Nov 2021) introduced the seed CSR. It provides an interface to a physical entropy source. A RNG driver based on the seed CSR is provided. It depends on mseccfg.sseed being set in the SBI firmware. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
102 lines
2.8 KiB
Text
102 lines
2.8 KiB
Text
config DM_RNG
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bool "Driver support for Random Number Generator devices"
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depends on DM
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help
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Enable driver model for random number generator(rng) devices.
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This interface is used to initialise the rng device and to
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read the random seed from the device.
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if DM_RNG
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config RNG_MESON
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bool "Amlogic Meson Random Number Generator support"
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depends on ARCH_MESON
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default y
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help
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Enable support for hardware random number generator
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of Amlogic Meson SoCs.
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config RNG_SANDBOX
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bool "Sandbox random number generator"
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depends on SANDBOX
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default y
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help
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Enable random number generator for sandbox. This is an
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emulation of a rng device.
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config RNG_MSM
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bool "Qualcomm SoCs Random Number Generator support"
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depends on DM_RNG
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help
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This driver provides support for the Random Number
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Generator hardware found on Qualcomm SoCs.
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config RNG_NPCM
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bool "Nuvoton NPCM SoCs Random Number Generator support"
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depends on DM_RNG
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help
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Enable random number generator on NPCM SoCs.
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This unit can provide 750 to 1000 random bits per second
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config RNG_OPTEE
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bool "OP-TEE based Random Number Generator support"
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depends on DM_RNG && OPTEE
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default y if OPTEE_SERVICE_DISCOVERY
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help
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This driver provides support for the OP-TEE based Random Number
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Generator on ARM SoCs where hardware entropy sources are not
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accessible to normal world but reserved and used by the OP-TEE
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to avoid the weakness of a software PRNG.
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config RNG_RISCV_ZKR
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bool "RISC-V Zkr random number generator"
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depends on RISCV_SMODE
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help
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This driver provides a Random Number Generator based on the
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Zkr RISC-V ISA extension which provides an interface to an
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NIST SP 800-90B or BSI AIS-31 compliant physical entropy source.
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config RNG_STM32
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bool "Enable random number generator for STM32"
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depends on ARCH_STM32 || ARCH_STM32MP
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help
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Enable STM32 rng driver.
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config RNG_ROCKCHIP
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bool "Enable random number generator for rockchip crypto rng"
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depends on ARCH_ROCKCHIP && DM_RNG
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help
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Enable random number generator for rockchip. This driver
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supports the rng module of crypto v1, crypto v2, and the
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trng module of the rk3588 series.
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config RNG_IPROC200
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bool "Broadcom iProc RNG200 random number generator"
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depends on DM_RNG
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help
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Enable random number generator for RPI4.
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config RNG_SMCCC_TRNG
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bool "Arm SMCCC TRNG interface"
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depends on DM_RNG && ARM_PSCI_FW
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default y if ARM_SMCCC_FEATURES
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help
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Enable random number generator for platforms that support Arm
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SMCCC TRNG interface.
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config RNG_ARM_RNDR
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bool "Generic ARMv8.5 RNDR register"
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depends on DM_RNG && ARM64
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help
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Use the ARMv8.5 RNDR register to provide random numbers.
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config TPM_RNG
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bool "Enable random number generator on TPM device"
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depends on TPM
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default y
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help
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The TPM device has an inbuilt random number generator
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functionality. Enable random number generator on TPM
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devices.
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endif
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