CONFIG_HW_RANDOM: Hardware Random Number Generator Core support

General informations

The Linux kernel configuration item CONFIG_HW_RANDOM has multiple definitions:

arch/um/Kconfig.char

The configuration item CONFIG_HW_RANDOM:

• prompt:
• type: tristate
• depends on: (none)
• defined in arch/um/Kconfig.char
• found in Linux Kernels: from 2.6.0 release still available on 2.6.34 release
• module created: rng-core, rng-core, hw_random, core

Help text

drivers/char/Kconfig

The configuration item CONFIG_HW_RANDOM:

• prompt: Intel/AMD/VIA HW Random Number Generator support
• type: tristate
• depends on: ( CONFIG_X86 || CONFIG_IA64 ) && CONFIG_PCI
• defined in drivers/char/Kconfig
• found in Linux Kernels: from 2.6.0 release still available on 2.6.34 release
• module created: rng-core, rng-core, hw_random, core

Help text

This driver provides kernel-side support for the Random Number Generator hardware found on Intel i8xx-based motherboards, AMD 76x-based motherboards, and Via Nehemiah CPUs.

Provides a character driver, used to read() entropy data.

To compile this driver as a module, choose M here: the module will be called hw_random.

If unsure, say N.

drivers/char/hw_random/Kconfig

The configuration item CONFIG_HW_RANDOM:

• prompt: Hardware Random Number Generator Core support
• type: tristate
• depends on: (none)
• defined in drivers/char/hw_random/Kconfig
• found in Linux Kernels: from 2.6.0 release still available on 2.6.34 release
• module created: rng-core, rng-core, hw_random, core

Help text

Hardware Random Number Generator Core infrastructure.

If unsure, say Y.

drivers/char/hw_random/Kconfig

The configuration item CONFIG_HW_RANDOM:

• prompt: Hardware Random Number Generator Core support
• type: tristate
• depends on: (none)
• defined in drivers/char/hw_random/Kconfig
• found in Linux Kernels: from 2.6.0 release still available on 2.6.34 release
• module created: rng-core, rng-core, hw_random, core

Help text

Hardware Random Number Generator Core infrastructure.

To compile this driver as a module, choose M here: the module will be called rng-core. This provides a device that's usually called /dev/hw_random, and which exposes one of possibly several hardware random number generators.

These hardware random number generators do not feed directly into the kernel's random number generator. That is usually handled by the "rngd" daemon. Documentation/hw_random.txt has more information.

If unsure, say Y.

Hardware

PCI

Numeric ID (from LKDDb) and names (from pci.ids) of recognized devices:

• vendor: 1022 ("Advanced Micro Devices [AMD]"), device: 2082 ("Geode LX AES Security Block")
• vendor: 1022 ("Advanced Micro Devices [AMD]"), device: 2082 ("Geode LX AES Security Block")
• vendor: 1022 ("Advanced Micro Devices [AMD]"), device: 7443 ("AMD-768 [Opus] ACPI")
• vendor: 1022 ("Advanced Micro Devices [AMD]"), device: 7443 ("AMD-768 [Opus] ACPI")
• vendor: 1022 ("Advanced Micro Devices [AMD]"), device: 746b ("AMD-8111 ACPI")
• vendor: 1022 ("Advanced Micro Devices [AMD]"), device: 746b ("AMD-8111 ACPI")
• vendor: 8086 ("Intel Corporation"), device: 2410 ("82801AA ISA Bridge (LPC)")
• vendor: 8086 ("Intel Corporation"), device: 2418 ("82801AA PCI Bridge")
• vendor: 8086 ("Intel Corporation"), device: 2418 ("82801AA PCI Bridge")
• vendor: 8086 ("Intel Corporation"), device: 2420 ("82801AB ISA Bridge (LPC)")
• vendor: 8086 ("Intel Corporation"), device: 2428 ("82801AB PCI Bridge")
• vendor: 8086 ("Intel Corporation"), device: 2428 ("82801AB PCI Bridge")
• vendor: 8086 ("Intel Corporation"), device: 2430
• vendor: 8086 ("Intel Corporation"), device: 2430
• vendor: 8086 ("Intel Corporation"), device: 2440 ("82801BA ISA Bridge (LPC)")
• vendor: 8086 ("Intel Corporation"), device: 2448 ("82801 Mobile PCI Bridge")
• vendor: 8086 ("Intel Corporation"), device: 2448 ("82801 Mobile PCI Bridge")
• vendor: 8086 ("Intel Corporation"), device: 244c ("82801BAM ISA Bridge (LPC)")
• vendor: 8086 ("Intel Corporation"), device: 244e ("82801 PCI Bridge")
• vendor: 8086 ("Intel Corporation"), device: 244e ("82801 PCI Bridge")
• vendor: 8086 ("Intel Corporation"), device: 2450 ("82801E ISA Bridge (LPC)")
• vendor: 8086 ("Intel Corporation"), device: 245e ("82801E PCI Bridge")
• vendor: 8086 ("Intel Corporation"), device: 245e ("82801E PCI Bridge")
• vendor: 8086 ("Intel Corporation"), device: 2480 ("82801CA LPC Interface Controller")
• vendor: 8086 ("Intel Corporation"), device: 248c ("82801CAM ISA Bridge (LPC)")
• vendor: 8086 ("Intel Corporation"), device: 24c0 ("82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge")
• vendor: 8086 ("Intel Corporation"), device: 24cc ("82801DBM (ICH4-M) LPC Interface Bridge")
• vendor: 8086 ("Intel Corporation"), device: 24d0 ("82801EB/ER (ICH5/ICH5R) LPC Interface Bridge")
• vendor: 8086 ("Intel Corporation"), device: 25a1 ("6300ESB LPC Interface Controller")
• vendor: 8086 ("Intel Corporation"), device: 2640 ("82801FB/FR (ICH6/ICH6R) LPC Interface Bridge")
• vendor: 8086 ("Intel Corporation"), device: 2641 ("82801FBM (ICH6M) LPC Interface Bridge")
• vendor: 8086 ("Intel Corporation"), device: 2670 ("631xESB/632xESB/3100 Chipset LPC Interface Controller")
• vendor: 8086 ("Intel Corporation"), device: 2671
• vendor: 8086 ("Intel Corporation"), device: 2672
• vendor: 8086 ("Intel Corporation"), device: 2673
• vendor: 8086 ("Intel Corporation"), device: 2674
• vendor: 8086 ("Intel Corporation"), device: 2675
• vendor: 8086 ("Intel Corporation"), device: 2676
• vendor: 8086 ("Intel Corporation"), device: 2677
• vendor: 8086 ("Intel Corporation"), device: 2678
• vendor: 8086 ("Intel Corporation"), device: 2679
• vendor: 8086 ("Intel Corporation"), device: 267a
• vendor: 8086 ("Intel Corporation"), device: 267b
• vendor: 8086 ("Intel Corporation"), device: 267c
• vendor: 8086 ("Intel Corporation"), device: 267d
• vendor: 8086 ("Intel Corporation"), device: 267e
• vendor: 8086 ("Intel Corporation"), device: 267f
• vendor: 8086 ("Intel Corporation"), device: 27b8 ("82801GB/GR (ICH7 Family) LPC Interface Bridge")
• vendor: 8086 ("Intel Corporation"), device: 27b9 ("82801GBM (ICH7-M) LPC Interface Bridge")
• vendor: 8086 ("Intel Corporation"), device: 27bd ("82801GHM (ICH7-M DH) LPC Interface Bridge")

LKDDb

Raw data from LKDDb:

• lkddb module core :: CONFIG_HW_RANDOM :: arch/um/Kconfig.char
• lkddb module hw_random "Intel/AMD/VIA HW Random Number Generator support" :: CONFIG_HW_RANDOM :: drivers/char/Kconfig
• lkddb module rng-core "" :: CONFIG_HW_RANDOM :: arch/um/Kconfig.char
• lkddb module rng-core "Hardware Random Number Generator Core support" :: CONFIG_HW_RANDOM :: drivers/char/hw_random/Kconfig
• lkddb of "random-number-generator" "" "" :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_N2RNG :: drivers/char/hw_random/n2-drv.c
• lkddb pci 1022 2082 .... .... ...... :: CONFIG_HW_RANDOM :: drivers/char/hw_random.c
• lkddb pci 1022 2082 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_GEODE :: drivers/char/hw_random/geode-rng.c
• lkddb pci 1022 7443 .... .... ...... :: CONFIG_HW_RANDOM :: drivers/char/hw_random.c
• lkddb pci 1022 7443 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_AMD :: drivers/char/hw_random/amd-rng.c
• lkddb pci 1022 746b .... .... ...... :: CONFIG_HW_RANDOM :: drivers/char/hw_random.c
• lkddb pci 1022 746b .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_AMD :: drivers/char/hw_random/amd-rng.c
• lkddb pci 8086 2410 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2418 .... .... ...... :: CONFIG_HW_RANDOM :: drivers/char/hw_random.c
• lkddb pci 8086 2418 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2420 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2428 .... .... ...... :: CONFIG_HW_RANDOM :: drivers/char/hw_random.c
• lkddb pci 8086 2428 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2430 .... .... ...... :: CONFIG_HW_RANDOM :: drivers/char/hw_random.c
• lkddb pci 8086 2430 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2440 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2448 .... .... ...... :: CONFIG_HW_RANDOM :: drivers/char/hw_random.c
• lkddb pci 8086 2448 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 244c .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 244e .... .... ...... :: CONFIG_HW_RANDOM :: drivers/char/hw_random.c
• lkddb pci 8086 244e .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2450 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 245e .... .... ...... :: CONFIG_HW_RANDOM :: drivers/char/hw_random.c
• lkddb pci 8086 245e .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2480 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 248c .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 24c0 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 24cc .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 24d0 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 25a1 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2640 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2641 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2670 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2671 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2672 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2673 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2674 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2675 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2676 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2677 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2678 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 2679 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 267a .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 267b .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 267c .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 267d .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 267e .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 267f .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 27b8 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 27b9 .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb pci 8086 27bd .... .... ...... :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_INTEL :: drivers/char/hw_random/intel-rng.c
• lkddb platform "mxc_rnga" :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_MXC_RNGA :: drivers/char/hw_random/mxc-rnga.c
• lkddb platform "octeon_rng" :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_OCTEON :: drivers/char/hw_random/octeon-rng.c
• lkddb platform "omap_rng" :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_OMAP :: drivers/char/hw_random/omap-rng.c
• lkddb platform "timeriomem_rng" :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_TIMERIOMEM :: drivers/char/hw_random/timeriomem-rng.c
• lkddb platform "tx4939-rng" :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_TX4939 :: drivers/char/hw_random/tx4939-rng.c
• lkddb virtio 00000004 ........ :: CONFIG_HW_RANDOM CONFIG_HW_RANDOM_VIRTIO :: drivers/char/hw_random/virtio-rng.c

Sources

• Linux Kernel
• Linux Kernel Driver DataBase (LKDDb)
• The Linux PCI ID Repository (pci.ids)

Notes

Pages under construction, so use with care!

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