# Kconfig - random generator driver configuration options # # Copyright (c) 2014-2015 Wind River Systems, Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # menu "Random Generation Configuration" config RANDOM_GENERATOR bool prompt "Custom random generator" default n help This option signifies that the target uses a real random number generator. config TEST_RANDOM_GENERATOR bool prompt "Non-random number generator" depends on !RANDOM_GENERATOR default n help This option signifies that the kernel's random number APIs are permitted to return values that are not truly random. This capability is provided for testing purposes, when a truly random number generator is not available. The non-random number generator should not be used in a production environment. config X86_TSC_RANDOM_GENERATOR bool prompt "x86 timestamp counter based number generator" depends on TEST_RANDOM_GENERATOR && X86 default y help This options enables number generator based on timestamp counter of x86 platform, obtained with rdtsc instruction. config TIMER_RANDOM_GENERATOR bool prompt "System timer clock based number generator" depends on TEST_RANDOM_GENERATOR && !X86_TSC_RANDOM_GENERATOR default y help This options enables number generator based on system timer clock. This number generator is not random and used for testing only. endmenu