Hi, On 1/9/20 12:35 AM, Stephan Müller wrote: > --- > drivers/char/lrng/Kconfig | 25 ++ > drivers/char/lrng/Makefile | 1 + > drivers/char/lrng/lrng_selftest.c | 418 ++++++++++++++++++++++++++++++ > 3 files changed, 444 insertions(+) > create mode 100644 drivers/char/lrng/lrng_selftest.c > > diff --git a/drivers/char/lrng/Kconfig b/drivers/char/lrng/Kconfig > index 394066aa5a86..e9827e7df715 100644 > --- a/drivers/char/lrng/Kconfig > +++ b/drivers/char/lrng/Kconfig > @@ -175,4 +175,29 @@ config LRNG_TESTING > > If unsure, say N. > > +config LRNG_SELFTEST > + bool "Enable power-on and on-demand self-tests" > + help > + The power-on self tests are executed during boot time self-tests > + covering the ChaCha20 DRNG, the LFSR processing and the > + time stamp management of the LRNG. > + > + The on-demand self-tests are triggered by writing any > + value into the SysFS file selftest_status. At the same > + time, when reading this file, the test status is > + returned. A zero indicates that all tests were executed > + successfully. > + > + If unsure, say Y. > + > +if LRNG_SELFTEST > + > +config LRNG_SELFTEST_PANIC > + bool "Panic the kernel upon self-test failure" > + help > + If the option is enabled, the kernel is terminated if an > + LRNG power-on self-test failure is detected. > + > +endif # LRNG_SELFTEST > + > endif # LRNG -- ~Randy
