diff options
| author | Aaron Lewis <aaronlewis@google.com> | 2023-04-07 16:32:50 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-04-14 13:20:53 -0700 |
| commit | fa32233d51b9d26369b8371e986c1030c4201fae (patch) | |
| tree | 5b156a8b45e32d98612b7b44d77b5adc24cddcd4 /tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c | |
| parent | 33ef1411a36b47ae7ecdb919463b0d78576b3832 (diff) | |
KVM: selftests: Add helpers for PMC asserts in PMU event filter test
Add helper macros to consolidate the asserts that a PMC is/isn't counting
(branch) instructions retired. This will make it easier to add additional
asserts related to counting instructions later on.
No functional changes intended.
Signed-off-by: Aaron Lewis <aaronlewis@google.com>
[sean: add "INSTRUCTIONS", massage changelog]
Link: https://lore.kernel.org/r/20230407233254.957013-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c')
| -rw-r--r-- | tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c | 52 |
1 files changed, 27 insertions, 25 deletions
diff --git a/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c b/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c index 13eca9357252..20a1f4fc2f48 100644 --- a/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c +++ b/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c @@ -244,14 +244,27 @@ static struct kvm_pmu_event_filter *remove_event(struct kvm_pmu_event_filter *f, return f; } +#define ASSERT_PMC_COUNTING_INSTRUCTIONS(count) \ +do { \ + if (count != NUM_BRANCHES) \ + pr_info("%s: Branch instructions retired = %lu (expected %u)\n", \ + __func__, count, NUM_BRANCHES); \ + TEST_ASSERT(count, "Allowed PMU event is not counting."); \ +} while (0) + +#define ASSERT_PMC_NOT_COUNTING_INSTRUCTIONS(count) \ +do { \ + if (count) \ + pr_info("%s: Branch instructions retired = %lu (expected 0)\n", \ + __func__, count); \ + TEST_ASSERT(!count, "Disallowed PMU Event is counting"); \ +} while (0) + static void test_without_filter(struct kvm_vcpu *vcpu) { uint64_t count = run_vcpu_to_sync(vcpu); - if (count != NUM_BRANCHES) - pr_info("%s: Branch instructions retired = %lu (expected %u)\n", - __func__, count, NUM_BRANCHES); - TEST_ASSERT(count, "Allowed PMU event is not counting"); + ASSERT_PMC_COUNTING_INSTRUCTIONS(count); } static uint64_t test_with_filter(struct kvm_vcpu *vcpu, @@ -269,12 +282,9 @@ static void test_amd_deny_list(struct kvm_vcpu *vcpu) f = create_pmu_event_filter(&event, 1, KVM_PMU_EVENT_DENY, 0); count = test_with_filter(vcpu, f); - free(f); - if (count != NUM_BRANCHES) - pr_info("%s: Branch instructions retired = %lu (expected %u)\n", - __func__, count, NUM_BRANCHES); - TEST_ASSERT(count, "Allowed PMU event is not counting"); + + ASSERT_PMC_COUNTING_INSTRUCTIONS(count); } static void test_member_deny_list(struct kvm_vcpu *vcpu) @@ -283,10 +293,8 @@ static void test_member_deny_list(struct kvm_vcpu *vcpu) uint64_t count = test_with_filter(vcpu, f); free(f); - if (count) - pr_info("%s: Branch instructions retired = %lu (expected 0)\n", - __func__, count); - TEST_ASSERT(!count, "Disallowed PMU Event is counting"); + + ASSERT_PMC_NOT_COUNTING_INSTRUCTIONS(count); } static void test_member_allow_list(struct kvm_vcpu *vcpu) @@ -295,10 +303,8 @@ static void test_member_allow_list(struct kvm_vcpu *vcpu) uint64_t count = test_with_filter(vcpu, f); free(f); - if (count != NUM_BRANCHES) - pr_info("%s: Branch instructions retired = %lu (expected %u)\n", - __func__, count, NUM_BRANCHES); - TEST_ASSERT(count, "Allowed PMU event is not counting"); + + ASSERT_PMC_COUNTING_INSTRUCTIONS(count); } static void test_not_member_deny_list(struct kvm_vcpu *vcpu) @@ -310,10 +316,8 @@ static void test_not_member_deny_list(struct kvm_vcpu *vcpu) remove_event(f, AMD_ZEN_BR_RETIRED); count = test_with_filter(vcpu, f); free(f); - if (count != NUM_BRANCHES) - pr_info("%s: Branch instructions retired = %lu (expected %u)\n", - __func__, count, NUM_BRANCHES); - TEST_ASSERT(count, "Allowed PMU event is not counting"); + + ASSERT_PMC_COUNTING_INSTRUCTIONS(count); } static void test_not_member_allow_list(struct kvm_vcpu *vcpu) @@ -325,10 +329,8 @@ static void test_not_member_allow_list(struct kvm_vcpu *vcpu) remove_event(f, AMD_ZEN_BR_RETIRED); count = test_with_filter(vcpu, f); free(f); - if (count) - pr_info("%s: Branch instructions retired = %lu (expected 0)\n", - __func__, count); - TEST_ASSERT(!count, "Disallowed PMU Event is counting"); + + ASSERT_PMC_NOT_COUNTING_INSTRUCTIONS(count); } /* |