linux-kernel - [PATCH 2/2] selftests: tpm2: test_smoke: Run only when TPM2 is avaialable.

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Message-ID: <1794c9c1d60a34ebae28d3a18b408765e955907b.1724842902.git.msuchanek@suse.de>
Date: Wed, 28 Aug 2024 13:23:20 +0200
From: Michal Suchanek <msuchanek@...e.de>
To: linux-integrity@...r.kernel.org
Cc: Michal Suchanek <msuchanek@...e.de>,
	Peter Huewe <peterhuewe@....de>,
	Jarkko Sakkinen <jarkko@...nel.org>,
	Jason Gunthorpe <jgg@...pe.ca>,
	Shuah Khan <shuah@...nel.org>,
	linux-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org
Subject: [PATCH 2/2] selftests: tpm2: test_smoke: Run only when TPM2 is avaialable.

Since Linux 5.6 tpm_version_major sysfs file is avaialble which gives
the TPM version.

Using this file the test can be skipped on systems with TPM 1.2.

Signed-off-by: Michal Suchanek <msuchanek@...e.de>
---
 tools/testing/selftests/tpm2/test_smoke.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/tpm2/test_smoke.sh b/tools/testing/selftests/tpm2/test_smoke.sh
index 58af963e5b55..e5e3386077d9 100755
--- a/tools/testing/selftests/tpm2/test_smoke.sh
+++ b/tools/testing/selftests/tpm2/test_smoke.sh
@@ -5,5 +5,7 @@
 ksft_skip=4
 
 [ -e /dev/tpm0 ] || exit $ksft_skip
+read tpm_version < /sys/class/tpm/tpm0/tpm_version_major
+[ "$tpm_version" == 2 ] || exit $ksft_skip
 
 python3 -m unittest -v tpm2_tests.SmokeTest
-- 
2.46.0