linux-kernel - [PATCH 0/2] selftests/verification: Add initial RV tests

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Message-ID: <20250926094613.34030-1-gmonaco@redhat.com>
Date: Fri, 26 Sep 2025 11:46:11 +0200
From: Gabriele Monaco <gmonaco@...hat.com>
To: linux-kernel@...r.kernel.org,
	Steven Rostedt <rostedt@...dmis.org>,
	Nam Cao <namcao@...utronix.de>
Cc: Gabriele Monaco <gmonaco@...hat.com>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	John Kacur <jkacur@...hat.com>,
	Waylon Cude <wcude@...hat.com>,
	linux-trace-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org
Subject: [PATCH 0/2] selftests/verification: Add initial RV tests

Add a series of tests to validate the RV tracefs API and basic
functionality.

* available monitors:
    Check that all monitors (from the monitors folder) appear as
    available and have a description. Works with nested monitors.

* enable/disable:
    Enable and disable all monitors and validate both the enabled file
    and the enabled_monitors. Check that enabling container monitors
    enables all nested monitors.

* reactors:
    Set all reactors and validate the setting, also for nested monitors.

* wwnr with printk:
    wwnr is broken on purpose, run it with a load and check that the
    printk reactor works. Also validate disabling reacting_on or
    monitoring_on prevents reactions.

These tests use the ftracetest suite. The first patch of the series
adapts ftracetest to make this possible.

The enable/disable test cannot pass on upstream without the application
of the fix in [1].

[1] - https://lore.kernel.org/lkml/87tt0t4u19.fsf@yellow.woof

To: Steven Rostedt <rostedt@...dmis.org>
To: Nam Cao <namcao@...utronix.de>
Cc: Masami Hiramatsu <mhiramat@...nel.org>
Cc: John Kacur <jkacur@...hat.com>
Cc: Waylon Cude <wcude@...hat.com>
Cc: linux-trace-kernel@...r.kernel.org
Cc: linux-kselftest@...r.kernel.org

Gabriele Monaco (2):
  selftest/ftrace: Generalise ftracetest to use with RV
  selftests/verification: Add initial RV tests

 MAINTAINERS                                   |  1 +
 tools/testing/selftests/ftrace/ftracetest     | 34 ++++++---
 .../ftrace/test.d/00basic/mount_options.tc    |  2 +-
 .../testing/selftests/ftrace/test.d/functions |  6 +-
 .../testing/selftests/verification/.gitignore |  2 +
 tools/testing/selftests/verification/Makefile |  8 ++
 tools/testing/selftests/verification/config   |  1 +
 tools/testing/selftests/verification/settings |  1 +
 .../selftests/verification/test.d/functions   | 39 ++++++++++
 .../test.d/rv_monitor_enable_disable.tc       | 75 +++++++++++++++++++
 .../verification/test.d/rv_monitor_reactor.tc | 68 +++++++++++++++++
 .../test.d/rv_monitors_available.tc           | 18 +++++
 .../verification/test.d/rv_wwnr_printk.tc     | 29 +++++++
 .../verification/verificationtest-ktap        |  8 ++
 14 files changed, 278 insertions(+), 14 deletions(-)
 create mode 100644 tools/testing/selftests/verification/.gitignore
 create mode 100644 tools/testing/selftests/verification/Makefile
 create mode 100644 tools/testing/selftests/verification/config
 create mode 100644 tools/testing/selftests/verification/settings
 create mode 100644 tools/testing/selftests/verification/test.d/functions
 create mode 100644 tools/testing/selftests/verification/test.d/rv_monitor_enable_disable.tc
 create mode 100644 tools/testing/selftests/verification/test.d/rv_monitor_reactor.tc
 create mode 100644 tools/testing/selftests/verification/test.d/rv_monitors_available.tc
 create mode 100644 tools/testing/selftests/verification/test.d/rv_wwnr_printk.tc
 create mode 100644 tools/testing/selftests/verification/verificationtest-ktap


base-commit: cec1e6e5d1ab33403b809f79cd20d6aff124ccfe
-- 
2.51.0