1 files changed, 109 insertions, 0 deletions
diff --git a/tools/testing/selftests/x86/bugs/its_permutations.py b/tools/testing/selftests/x86/bugs/its_permutations.py
new file mode 100755
index 000000000000..3204f4728c62
--- /dev/null
+++ b/tools/testing/selftests/x86/bugs/its_permutations.py
@@ -0,0 +1,109 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2025 Intel Corporation
+#
+# Test for indirect target selection (ITS) cmdline permutations with other bugs
+# like spectre_v2 and retbleed.
+
+import os, sys, subprocess, itertools, re, shutil
+
+test_dir = os.path.dirname(os.path.realpath(__file__))
+sys.path.insert(0, test_dir + '/../../kselftest')
+import ksft
+import common as c
+
+bug = "indirect_target_selection"
+mitigation = c.get_sysfs(bug)
+
+if not mitigation or "Not affected" in mitigation:
+    ksft.test_result_skip("Skipping its_permutations.py: not applicable")
+    ksft.finished()
+
+if shutil.which('vng') is None:
+    ksft.test_result_skip("Skipping its_permutations.py: virtme-ng ('vng') not found in PATH.")
+    ksft.finished()
+
+TEST = f"{test_dir}/its_sysfs.py"
+default_kparam = ['clearcpuid=hypervisor', 'panic=5', 'panic_on_warn=1', 'oops=panic', 'nmi_watchdog=1', 'hung_task_panic=1']
+
+DEBUG = " -v "
+
+# Install dependencies
+# https://github.com/arighi/virtme-ng
+# apt install virtme-ng
+BOOT_CMD = f"vng --run {test_dir}/../../../../../arch/x86/boot/bzImage "
+#BOOT_CMD += DEBUG
+
+bug = "indirect_target_selection"
+
+input_options = {
+    'indirect_target_selection'     : ['off', 'on', 'stuff', 'vmexit'],
+    'retbleed'                      : ['off', 'stuff', 'auto'],
+    'spectre_v2'                    : ['off', 'on', 'eibrs', 'retpoline', 'ibrs', 'eibrs,retpoline'],
+}
+
+def pretty_print(output):
+    OKBLUE = '\033[94m'
+    OKGREEN = '\033[92m'
+    WARNING = '\033[93m'
+    FAIL = '\033[91m'
+    ENDC = '\033[0m'
+    BOLD = '\033[1m'
+
+    # Define patterns and their corresponding colors
+    patterns = {
+        r"^ok \d+": OKGREEN,
+        r"^not ok \d+": FAIL,
+        r"^# Testing .*": OKBLUE,
+        r"^# Found: .*": WARNING,
+        r"^# Totals: .*": BOLD,
+        r"pass:([1-9]\d*)": OKGREEN,
+        r"fail:([1-9]\d*)": FAIL,
+        r"skip:([1-9]\d*)": WARNING,
+    }
+
+    # Apply colors based on patterns
+    for pattern, color in patterns.items():
+        output = re.sub(pattern, lambda match: f"{color}{match.group(0)}{ENDC}", output, flags=re.MULTILINE)
+
+    print(output)
+
+combinations = list(itertools.product(*input_options.values()))
+ksft.print_header()
+ksft.set_plan(len(combinations))
+
+logs = ""
+
+for combination in combinations:
+    append = ""
+    log = ""
+    for p in default_kparam:
+        append += f' --append={p}'
+    command = BOOT_CMD + append
+    test_params = ""
+    for i, key in enumerate(input_options.keys()):
+        param = f'{key}={combination[i]}'
+        test_params += f' {param}'
+        command += f" --append={param}"
+    command += f" -- {TEST}"
+    test_name = f"{bug} {test_params}"
+    pretty_print(f'# Testing {test_name}')
+    t =  subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+    t.wait()
+    output, _ = t.communicate()
+    if t.returncode == 0:
+        ksft.test_result_pass(test_name)
+    else:
+        ksft.test_result_fail(test_name)
+    output = output.decode()
+    log += f" {output}"
+    pretty_print(log)
+    logs += output + "\n"
+
+# Optionally use tappy to parse the output
+# apt install python3-tappy
+with open("logs.txt", "w") as f:
+    f.write(logs)
+
+ksft.finished()