CONFIG_HW_RANDOM_TPM: TPM HW Random Number Generator support

General informations

The Linux kernel configuration item CONFIG_HW_RANDOM_TPM has multiple definitions:

TPM HW Random Number Generator support found in drivers/char/tpm/Kconfig

The configuration item CONFIG_HW_RANDOM_TPM:

• prompt: TPM HW Random Number Generator support
• type: bool
• depends on: CONFIG_TCG_TPM && CONFIG_HW_RANDOM && !( CONFIG_TCG_TPM = CONFIG_y && CONFIG_HW_RANDOM = CONFIG_m )
• defined in drivers/char/tpm/Kconfig
• found in Linux kernels: 4.16–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD
• modules built: tpm-rng

Help text

This setting exposes the TPM's Random Number Generator as a hwrng device. This allows the kernel to collect randomness from the TPM at boot, and provides the TPM randomines in /dev/hwrng.

If unsure, say Y.

TPM HW Random Number Generator support found in drivers/char/hw_random/Kconfig

The configuration item CONFIG_HW_RANDOM_TPM:

• prompt: TPM HW Random Number Generator support
• type: tristate
• depends on: CONFIG_TCG_TPM
• defined in drivers/char/hw_random/Kconfig
• found in Linux kernels: 3.7–3.19, 4.0–4.15
• modules built: tpm-rng

Help text

This driver provides kernel-side support for the Random Number Generator in the Trusted Platform Module

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

If unsure, say Y.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module tpm-rng CONFIG_HW_RANDOM_TPM : drivers/char/hw_random/Kconfig : "TPM HW Random Number Generator support" # in 3.7–3.19, 4.0–4.15

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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