#
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# Hardware Random Number Generator (RNG) configuration
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#
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menuconfig HW_RANDOM
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tristate "Hardware Random Number Generator Core support"
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default m
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---help---
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Hardware Random Number Generator Core infrastructure.
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To compile this driver as a module, choose M here: the
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module will be called rng-core. This provides a device
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that's usually called /dev/hwrng, and which exposes one
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of possibly several hardware random number generators.
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These hardware random number generators do not feed directly
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into the kernel's random number generator. That is usually
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handled by the "rngd" daemon. Documentation/hw_random.txt
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has more information.
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If unsure, say Y.
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if HW_RANDOM
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config HW_RANDOM_TIMERIOMEM
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tristate "Timer IOMEM HW Random Number Generator support"
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depends on HAS_IOMEM
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---help---
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This driver provides kernel-side support for a generic Random
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Number Generator used by reading a 'dumb' iomem address that
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is to be read no faster than, for example, once a second;
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the default FPGA bitstream on the TS-7800 has such functionality.
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To compile this driver as a module, choose M here: the
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module will be called timeriomem-rng.
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If unsure, say Y.
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config HW_RANDOM_INTEL
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tristate "Intel HW Random Number Generator support"
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depends on (X86 || IA64) && PCI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Intel i8xx-based motherboards.
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To compile this driver as a module, choose M here: the
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module will be called intel-rng.
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If unsure, say Y.
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config HW_RANDOM_AMD
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tristate "AMD HW Random Number Generator support"
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depends on (X86 || PPC_MAPLE) && PCI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on AMD 76x-based motherboards.
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To compile this driver as a module, choose M here: the
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module will be called amd-rng.
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If unsure, say Y.
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config HW_RANDOM_ATMEL
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tristate "Atmel Random Number Generator support"
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depends on ARCH_AT91 && HAVE_CLK && OF
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Atmel AT91 devices.
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To compile this driver as a module, choose M here: the
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module will be called atmel-rng.
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If unsure, say Y.
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config HW_RANDOM_BCM63XX
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tristate "Broadcom BCM63xx Random Number Generator support"
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depends on BCM63XX || BMIPS_GENERIC
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on the Broadcom BCM63xx SoCs.
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To compile this driver as a module, choose M here: the
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module will be called bcm63xx-rng
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If unusure, say Y.
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config HW_RANDOM_BCM2835
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tristate "Broadcom BCM2835 Random Number Generator support"
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depends on ARCH_BCM2835 || ARCH_BCM_NSP || ARCH_BCM_5301X
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on the Broadcom BCM2835 SoCs.
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To compile this driver as a module, choose M here: the
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module will be called bcm2835-rng
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If unsure, say Y.
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config HW_RANDOM_IPROC_RNG200
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tristate "Broadcom iProc RNG200 support"
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depends on ARCH_BCM_IPROC
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the RNG200
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hardware found on the Broadcom iProc SoCs.
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To compile this driver as a module, choose M here: the
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module will be called iproc-rng200
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If unsure, say Y.
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config HW_RANDOM_GEODE
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tristate "AMD Geode HW Random Number Generator support"
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depends on X86_32 && PCI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on the AMD Geode LX.
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To compile this driver as a module, choose M here: the
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module will be called geode-rng.
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If unsure, say Y.
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config HW_RANDOM_N2RNG
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tristate "Niagara2 Random Number Generator support"
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depends on SPARC64
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Niagara2 cpus.
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To compile this driver as a module, choose M here: the
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module will be called n2-rng.
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If unsure, say Y.
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config HW_RANDOM_VIA
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tristate "VIA HW Random Number Generator support"
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depends on X86
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on VIA based motherboards.
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To compile this driver as a module, choose M here: the
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module will be called via-rng.
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If unsure, say Y.
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config HW_RANDOM_IXP4XX
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tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support"
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depends on ARCH_IXP4XX
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Pseudo-Random
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Number Generator hardware found on the Intel IXP45x/46x NPU.
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To compile this driver as a module, choose M here: the
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module will be called ixp4xx-rng.
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If unsure, say Y.
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config HW_RANDOM_OMAP
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tristate "OMAP Random Number Generator support"
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depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on OMAP16xx, OMAP2/3/4/5 and AM33xx/AM43xx
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multimedia processors.
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To compile this driver as a module, choose M here: the
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module will be called omap-rng.
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If unsure, say Y.
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config HW_RANDOM_OMAP3_ROM
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tristate "OMAP3 ROM Random Number Generator support"
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depends on ARCH_OMAP3
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on OMAP34xx processors.
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To compile this driver as a module, choose M here: the
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module will be called omap3-rom-rng.
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If unsure, say Y.
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config HW_RANDOM_OCTEON
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tristate "Octeon Random Number Generator support"
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depends on CAVIUM_OCTEON_SOC
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Octeon processors.
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To compile this driver as a module, choose M here: the
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module will be called octeon-rng.
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If unsure, say Y.
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config HW_RANDOM_PASEMI
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tristate "PA Semi HW Random Number Generator support"
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depends on PPC_PASEMI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on PA Semi PWRficient SoCs.
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To compile this driver as a module, choose M here: the
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module will be called pasemi-rng.
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If unsure, say Y.
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config HW_RANDOM_VIRTIO
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tristate "VirtIO Random Number Generator support"
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depends on VIRTIO
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---help---
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This driver provides kernel-side support for the virtual Random Number
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Generator hardware.
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To compile this driver as a module, choose M here: the
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module will be called virtio-rng. If unsure, say N.
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config HW_RANDOM_TX4939
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tristate "TX4939 Random Number Generator support"
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depends on SOC_TX4939
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on TX4939 SoC.
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To compile this driver as a module, choose M here: the
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module will be called tx4939-rng.
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If unsure, say Y.
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config HW_RANDOM_MXC_RNGA
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tristate "Freescale i.MX RNGA Random Number Generator"
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depends on SOC_IMX31
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Freescale i.MX processors.
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To compile this driver as a module, choose M here: the
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module will be called mxc-rnga.
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If unsure, say Y.
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config HW_RANDOM_NOMADIK
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tristate "ST-Ericsson Nomadik Random Number Generator support"
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depends on ARCH_NOMADIK
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
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To compile this driver as a module, choose M here: the
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module will be called nomadik-rng.
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If unsure, say Y.
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config HW_RANDOM_PSERIES
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tristate "pSeries HW Random Number Generator support"
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depends on PPC64 && IBMVIO
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on POWER7+ machines and above
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To compile this driver as a module, choose M here: the
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module will be called pseries-rng.
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If unsure, say Y.
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config HW_RANDOM_POWERNV
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tristate "PowerNV Random Number Generator support"
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depends on PPC_POWERNV
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default HW_RANDOM
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---help---
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This is the driver for Random Number Generator hardware found
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in POWER7+ and above machines for PowerNV platform.
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To compile this driver as a module, choose M here: the
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module will be called powernv-rng.
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If unsure, say Y.
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config HW_RANDOM_EXYNOS
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tristate "EXYNOS HW random number generator support"
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depends on ARCH_EXYNOS || COMPILE_TEST
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depends on HAS_IOMEM
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on EXYNOS SOCs.
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To compile this driver as a module, choose M here: the
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module will be called exynos-rng.
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If unsure, say Y.
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config HW_RANDOM_TPM
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tristate "TPM HW Random Number Generator support"
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depends on TCG_TPM
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator in the Trusted Platform Module
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To compile this driver as a module, choose M here: the
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module will be called tpm-rng.
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If unsure, say Y.
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config HW_RANDOM_HISI
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tristate "Hisilicon Random Number Generator support"
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depends on HW_RANDOM && ARCH_HISI
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Hisilicon Hip04 and Hip05 SoC.
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To compile this driver as a module, choose M here: the
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module will be called hisi-rng.
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If unsure, say Y.
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config HW_RANDOM_MSM
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tristate "Qualcomm SoCs Random Number Generator support"
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depends on HW_RANDOM && ARCH_QCOM
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Qualcomm SoCs.
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To compile this driver as a module, choose M here. the
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module will be called msm-rng.
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If unsure, say Y.
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config HW_RANDOM_ST
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tristate "ST Microelectronics HW Random Number Generator support"
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depends on HW_RANDOM && ARCH_STI
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on STi series of SoCs.
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To compile this driver as a module, choose M here: the
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module will be called st-rng.
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config HW_RANDOM_XGENE
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tristate "APM X-Gene True Random Number Generator (TRNG) support"
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depends on HW_RANDOM && ARCH_XGENE
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on APM X-Gene SoC.
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To compile this driver as a module, choose M here: the
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module will be called xgene_rng.
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If unsure, say Y.
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config HW_RANDOM_STM32
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tristate "STMicroelectronics STM32 random number generator"
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depends on HW_RANDOM && (ARCH_STM32 || COMPILE_TEST)
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depends on HAS_IOMEM
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help
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This driver provides kernel-side support for the Random Number
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Generator hardware found on STM32 microcontrollers.
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To compile this driver as a module, choose M here: the
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module will be called stm32-rng.
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If unsure, say N.
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config HW_RANDOM_PIC32
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tristate "Microchip PIC32 Random Number Generator support"
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depends on HW_RANDOM && MACH_PIC32
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default y
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on a PIC32.
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To compile this driver as a module, choose M here. the
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module will be called pic32-rng.
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If unsure, say Y.
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config HW_RANDOM_MESON
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tristate "Amlogic Meson Random Number Generator support"
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depends on HW_RANDOM
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depends on ARCH_MESON || COMPILE_TEST
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default y
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Amlogic Meson SoCs.
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To compile this driver as a module, choose M here. the
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module will be called meson-rng.
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If unsure, say Y.
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config HW_RANDOM_CAVIUM
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tristate "Cavium ThunderX Random Number Generator support"
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depends on HW_RANDOM && PCI && (ARM64 || (COMPILE_TEST && 64BIT))
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default HW_RANDOM
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---help---
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This driver provides kernel-side support for the Random Number
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Generator hardware found on Cavium SoCs.
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To compile this driver as a module, choose M here: the
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module will be called cavium_rng.
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If unsure, say Y.
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endif # HW_RANDOM
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config UML_RANDOM
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depends on UML
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tristate "Hardware random number generator"
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help
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This option enables UML's "hardware" random number generator. It
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attaches itself to the host's /dev/random, supplying as much entropy
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as the host has, rather than the small amount the UML gets from its
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own drivers. It registers itself as a standard hardware random number
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generator, major 10, minor 183, and the canonical device name is
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/dev/hwrng.
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The way to make use of this is to install the rng-tools package
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(check your distro, or download from
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http://sourceforge.net/projects/gkernel/). rngd periodically reads
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/dev/hwrng and injects the entropy into /dev/random.
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