From: Akihiko Odaki <akihiko.odaki@daynix.com>
To: Peter Maydell <peter.maydell@linaro.org>,
Thomas Huth <thuth@redhat.com>,
Laurent Vivier <lvivier@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, kvm@vger.kernel.org,
Akihiko Odaki <akihiko.odaki@daynix.com>
Subject: [PATCH v2 0/5] target/arm/kvm: Report PMU unavailability
Date: Tue, 16 Jul 2024 17:28:12 +0900 [thread overview]
Message-ID: <20240716-pmu-v2-0-f3e3e4b2d3d5@daynix.com> (raw)
target/arm/kvm.c checked PMU availability but claimed PMU is
available even if it is not. In fact, Asahi Linux supports KVM but lacks
PMU support. Only advertise PMU availability only when it is really
available.
Fixes: dc40d45ebd8e ("target/arm/kvm: Move kvm_arm_get_host_cpu_features and unexport")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
Changes in v2:
- Restricted writes to 'pmu' to host and max.
- Prohibited writes to 'pmu' for hvf.
- Link to v1: https://lore.kernel.org/r/20240629-pmu-v1-0-7269123b88a4@daynix.com
---
Akihiko Odaki (5):
tests/arm-cpu-features: Do not assume PMU availability
target/arm: Allow setting 'pmu' only for host and max
target/arm: Do not allow setting 'pmu' for hvf
target/arm: Always add pmu property
target/arm/kvm: Report PMU unavailability
target/arm/cpu.c | 14 +++++++++++++-
target/arm/kvm.c | 2 +-
tests/qtest/arm-cpu-features.c | 13 ++++++++-----
3 files changed, 22 insertions(+), 7 deletions(-)
---
base-commit: f2cb4026fccfe073f84a4b440e41d3ed0c3134f6
change-id: 20240629-pmu-ad5f67e2c5d0
Best regards,
--
Akihiko Odaki <akihiko.odaki@daynix.com>
next reply other threads:[~2024-07-16 8:29 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-16 8:28 Akihiko Odaki [this message]
2024-07-16 8:28 ` [PATCH v2 1/5] tests/arm-cpu-features: Do not assume PMU availability Akihiko Odaki
2024-07-16 9:16 ` Philippe Mathieu-Daudé
2024-07-16 8:28 ` [PATCH v2 2/5] target/arm: Allow setting 'pmu' only for host and max Akihiko Odaki
2024-07-16 9:36 ` Peter Maydell
2024-07-16 8:28 ` [PATCH v2 3/5] target/arm: Do not allow setting 'pmu' for hvf Akihiko Odaki
2024-07-16 11:28 ` Peter Maydell
2024-07-16 8:28 ` [PATCH v2 4/5] target/arm: Always add pmu property Akihiko Odaki
2024-07-16 9:19 ` Philippe Mathieu-Daudé
2024-07-16 11:32 ` Peter Maydell
2024-07-16 11:36 ` Akihiko Odaki
2024-07-16 12:53 ` Peter Maydell
2024-07-16 8:28 ` [PATCH v2 5/5] target/arm/kvm: Report PMU unavailability Akihiko Odaki
2024-07-16 9:22 ` Philippe Mathieu-Daudé
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