summaryrefslogtreecommitdiffstats
path: root/drivers/char/hw_random/Kconfig
diff options
context:
space:
mode:
authorHarald Freudenberger <freude@linux.vnet.ibm.com>2017-02-24 09:10:05 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2017-04-26 13:41:36 +0200
commitbbcb478e3fefa5d9acff6a5311073fae0809a9c3 (patch)
treecd945e711fdf1d798106bce24c093844a9b49cec /drivers/char/hw_random/Kconfig
parent4c637cd8de43416c1b1eef6113e7aa06abacf18d (diff)
downloadblackbird-obmc-linux-bbcb478e3fefa5d9acff6a5311073fae0809a9c3.tar.gz
blackbird-obmc-linux-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/Kconfig14
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
OpenPOWER on IntegriCloud