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Some monitors do not only rely on tracepoint arguments but also on the currently executing task. This makes it more challenging to mock events in KUnit. Define wrapper functions around current, the functionality is mocked only during KUnit, an additional function call is avoided using a static branch unless any (even unrelated) KUnit test is running. Rely on a global mock_current variable that is set only by the RV KUnit tests and cleared on teardown. Unrelated KUnit tests that happen to trigger RV handlers would see it null and use current. Reviewed-by: Nam Cao <namcao@linutronix.de> Reviewed-by: Wen Yang <wen.yang@linux.dev> Link: https://lore.kernel.org/r/20260723074534.43521-14-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
129 lines
3.5 KiB
Plaintext
129 lines
3.5 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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config RV_MON_EVENTS
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bool
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config RV_MON_MAINTENANCE_EVENTS
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bool
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config DA_MON_EVENTS_IMPLICIT
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select RV_MON_EVENTS
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select RV_MON_MAINTENANCE_EVENTS
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bool
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config DA_MON_EVENTS_ID
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select RV_MON_EVENTS
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select RV_MON_MAINTENANCE_EVENTS
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bool
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config LTL_MON_EVENTS_ID
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select RV_MON_EVENTS
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bool
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config RV_LTL_MONITOR
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bool
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config RV_HA_MONITOR
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bool
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config HA_MON_EVENTS_IMPLICIT
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select DA_MON_EVENTS_IMPLICIT
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select RV_HA_MONITOR
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bool
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config HA_MON_EVENTS_ID
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select DA_MON_EVENTS_ID
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select RV_HA_MONITOR
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bool
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menuconfig RV
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bool "Runtime Verification"
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select TRACING
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help
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Enable the kernel runtime verification infrastructure. RV is a
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lightweight (yet rigorous) method that complements classical
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exhaustive verification techniques (such as model checking and
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theorem proving). RV works by analyzing the trace of the system's
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actual execution, comparing it against a formal specification of
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the system behavior.
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For further information, see:
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Documentation/trace/rv/runtime-verification.rst
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config RV_PER_TASK_MONITORS
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int "Maximum number of per-task monitor"
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depends on RV
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range 1 8
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default 2
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help
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This option configures the maximum number of per-task RV monitors that can run
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simultaneously.
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source "kernel/trace/rv/monitors/wip/Kconfig"
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source "kernel/trace/rv/monitors/wwnr/Kconfig"
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source "kernel/trace/rv/monitors/sched/Kconfig"
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source "kernel/trace/rv/monitors/sco/Kconfig"
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source "kernel/trace/rv/monitors/snroc/Kconfig"
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source "kernel/trace/rv/monitors/scpd/Kconfig"
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source "kernel/trace/rv/monitors/snep/Kconfig"
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source "kernel/trace/rv/monitors/sts/Kconfig"
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source "kernel/trace/rv/monitors/nrp/Kconfig"
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source "kernel/trace/rv/monitors/sssw/Kconfig"
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source "kernel/trace/rv/monitors/opid/Kconfig"
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# Add new sched monitors here
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source "kernel/trace/rv/monitors/rtapp/Kconfig"
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source "kernel/trace/rv/monitors/pagefault/Kconfig"
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source "kernel/trace/rv/monitors/sleep/Kconfig"
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source "kernel/trace/rv/monitors/wakeup/Kconfig"
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# Add new rtapp monitors here
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source "kernel/trace/rv/monitors/stall/Kconfig"
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source "kernel/trace/rv/monitors/deadline/Kconfig"
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source "kernel/trace/rv/monitors/nomiss/Kconfig"
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# Add new deadline monitors here
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# Add new monitors here
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config RV_REACTORS
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bool "Runtime verification reactors"
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default y
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depends on RV
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help
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Enables the online runtime verification reactors. A runtime
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monitor can cause a reaction to the detection of an exception
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on the model's execution. By default, the monitors have
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tracing reactions, printing the monitor output via tracepoints,
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but other reactions can be added (on-demand) via this interface.
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config RV_REACT_PRINTK
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bool "Printk reactor"
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depends on RV_REACTORS
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default y
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help
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Enables the printk reactor. The printk reactor emits a printk()
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message if an exception is found.
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config RV_REACT_PANIC
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bool "Panic reactor"
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depends on RV_REACTORS
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default y
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help
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Enables the panic reactor. The panic reactor emits a printk()
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message if an exception is found and panic()s the system.
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config RV_MONITORS_KUNIT_TEST
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tristate "KUnit tests for RV monitors" if !KUNIT_ALL_TESTS
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depends on KUNIT && RV && RV_REACTORS
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default KUNIT_ALL_TESTS
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help
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Enable KUnit tests for the RV (Runtime Verification) monitors.
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These tests verify that monitors correctly detect violations by
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triggering fake events and validating the expected reactions.
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Enabling this may slightly increase overhead of some monitors if any
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unrelated KUnit test is running.
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If unsure, say N.
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