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| author |   Harald Freudenberger <freude@linux.vnet.ibm.com> | 2017-02-24 09:10:05 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-04-26 13:41:36 +0200 |
| commit | bbcb478e3fefa5d9acff6a5311073fae0809a9c3 (patch) | |
| tree | cd945e711fdf1d798106bce24c093844a9b49cec /drivers/char/hw_random/Kconfig | |
| parent | s390/crypto: Provide s390 specific arch random functionality. (diff) | |
| download | linux-dev-bbcb478e3fefa5d9acff6a5311073fae0809a9c3.tar.xz linux-dev-bbcb478e3fefa5d9acff6a5311073fae0809a9c3.zip | |
s390/trng: Introduce s390 TRNG device driver.
This patch introduces a new device driver s390-trng for the
s390 platform which exploits the new PRNO TRNG cpacf
subfunction. The true-random-number-generator is accessible
from userspace, by default visible as /dev/trng. The driver
also registers at the kernel build-in hwrng API to feed the
hwrng with fresh entropy data. This generic device driver
for hardware random data is visible from userspace as
/dev/hwrng.
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/char/hw_random/Kconfig')
| -rw-r--r-- | drivers/char/hw_random/Kconfig | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index 0cafe08919c9..b9918fb9587d 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -423,6 +423,20 @@ config HW_RANDOM_CAVIUM If unsure, say Y. +config HW_RANDOM_S390 + tristate "S390 True Random Number Generator support" + depends on S390 + default HW_RANDOM + ---help--- + This driver provides kernel-side support for the True + Random Number Generator available as CPACF extension + on modern s390 hardware platforms. + + To compile this driver as a module, choose M here: the + module will be called s390-trng. + + If unsure, say Y. + endif # HW_RANDOM config UML_RANDOM |