From: Naresh Kamboju <naresh.kamboju@linaro.org>
To: kvmarm@lists.linux.dev,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
open list <linux-kernel@vger.kernel.org>,
lkft-triage@lists.linaro.org,
Linux Regressions <regressions@lists.linux.dev>
Cc: Fuad Tabba <tabba@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>,
James Morse <james.morse@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Anders Roxell <anders.roxell@linaro.org>,
Arnd Bergmann <arnd@arndb.de>,
Dan Carpenter <dan.carpenter@linaro.org>,
Ben Copeland <benjamin.copeland@linaro.org>,
Mark Brown <broonie@kernel.org>,
Aishwarya TCV <Aishwarya.TCV@arm.com>
Subject: kvm-unit-tests hang on Arm FVP with protected mode
Date: Fri, 5 Sep 2025 17:58:45 +0530 [thread overview]
Message-ID: <CA+G9fYsT3b3Qd-m6tSDOgAXpgLPWz0QD_Z6a+_ff4oTecA85PQ@mail.gmail.com> (raw)
kvm-unit-tests consistently hang on Arm FVP when booted with
kvm-arm.mode=protected across both 4K and 64K page-size kernel builds.
Running the same tests with kvm-arm.mode=vhe completes successfully.
Anders, bisected and identified the first bad commit as:
066daa8d3bc2694c392e14091978043aed7b1f23
KVM: arm64: Initialize HCRX_EL2 traps in pKVM
Regression Analysis:
- Reproducibility? yes
Test regression: kvm-unit-tests hang on Arm FVP with kvm-arm.mode=protected
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Environment:
Platform: Arm FVP base-revc
Kernel: arm64 (tested with 4K and 64K page sizes)
Mode: kvm-arm.mode=protected (hangs) vs kvm-arm.mode=vhe (passes)
Test suite: kvm-unit-tests (./run_tests.sh -a -t -v)
Cmdline args : kvm-arm.mode=protected
Kernel: Mainline master and Linux next master
Test run log:
INFO: running kvm unit tests ...
+ [ True = false ]
+ ./run_tests.sh -a -t -v
+ tee -a /lava-1/0/tests/0_kvm-unit-tests/automated/linux/kvm-unit-tests/output/result_log.txt
TAP version 13
Links:
https://regressions.linaro.org/lkft/linux-mainline-master/v6.17-rc4/lava/kvm-unit-tests/history/?page=1
https://qa-reports.linaro.org/api/testruns/29720932/log_file/
--
Linaro LKFT
https://lkft.linaro.org
next reply other threads:[~2025-09-05 16:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-05 12:28 Naresh Kamboju [this message]
2025-09-05 12:42 ` kvm-unit-tests hang on Arm FVP with protected mode Marc Zyngier
2025-09-05 13:38 ` Mark Brown
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