| From: |
| Shaoqin Huang <shahuang-AT-redhat.com> |
| To: |
| Oliver Upton <oliver.upton-AT-linux.dev>, Marc Zyngier <maz-AT-kernel.org>, kvmarm-AT-lists.linux.dev |
| Subject: |
| [PATCH v5 0/3] KVM: selftests: aarch64: Introduce pmu_event_filter_test |
| Date: |
| Thu, 29 Feb 2024 01:56:18 -0500 |
| Message-ID: |
| <20240229065625.114207-1-shahuang@redhat.com> |
| Cc: |
| Eric Auger <eauger-AT-redhat.com>, Shaoqin Huang <shahuang-AT-redhat.com>, James Morse <james.morse-AT-arm.com>, kvm-AT-vger.kernel.org, linux-arm-kernel-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org, linux-kselftest-AT-vger.kernel.org, Paolo Bonzini <pbonzini-AT-redhat.com>, Shuah Khan <shuah-AT-kernel.org>, Suzuki K Poulose <suzuki.poulose-AT-arm.com>, Zenghui Yu <yuzenghui-AT-huawei.com> |
| Archive-link: |
| Article |
The test is inspired by the pmu_event_filter_test which implemented by x86. On
the arm64 platform, there is the same ability to set the pmu_event_filter
through the KVM_ARM_VCPU_PMU_V3_FILTER attribute. So add the test for arm64.
The series first create the helper function which can be used
for the vpmu related tests. Then, it implement the test.
Changelog:
----------
v4->v5:
- Rebased to v6.8-rc6.
- Refactor the helper function, make it fine-grained and easy to be used.
- Namimg improvements.
- Use the kvm_device_attr_set() helper.
- Make the test descriptor array readable and clean.
- Delete the patch which moves the pmu related helper to vpmu.h.
- Remove the kvm_supports_pmu_event_filter() function since nobody will run
this on a old kernel.
v3->v4:
- Rebased to the v6.8-rc2.
v2->v3:
- Check the pmceid in guest code instead of pmu event count since different
hardware may have different event count result, check pmceid makes it stable
on different platform. [Eric]
- Some typo fixed and commit message improved.
v1->v2:
- Improve the commit message. [Eric]
- Fix the bug in [enable|disable]_counter. [Raghavendra & Marc]
- Add the check if kvm has attr KVM_ARM_VCPU_PMU_V3_FILTER.
- Add if host pmu support the test event throught pmceid0.
- Split the test_invalid_filter() to another patch. [Eric]
v1: https://lore.kernel.org/all/20231123063750.2176250-1-shah...
v2: https://lore.kernel.org/all/20231129072712.2667337-1-shah...
v3: https://lore.kernel.org/all/20240116060129.55473-1-shahua...
v4: https://lore.kernel.org/all/20240202025659.5065-1-shahuan...
Shaoqin Huang (3):
KVM: selftests: aarch64: Add helper function for the vpmu vcpu
creation
KVM: selftests: aarch64: Introduce pmu_event_filter_test
KVM: selftests: aarch64: Add invalid filter test in
pmu_event_filter_test
tools/testing/selftests/kvm/Makefile | 1 +
.../kvm/aarch64/pmu_event_filter_test.c | 325 ++++++++++++++++++
.../kvm/aarch64/vpmu_counter_access.c | 33 +-
.../selftests/kvm/include/aarch64/vpmu.h | 29 ++
4 files changed, 362 insertions(+), 26 deletions(-)
create mode 100644 tools/testing/selftests/kvm/aarch64/pmu_event_filter_test.c
create mode 100644 tools/testing/selftests/kvm/include/aarch64/vpmu.h
--
2.40.1
