From: Aaron Lewis <aaronlewis@xxxxxxxxxx>
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@xxxxxxxxxx>
[sean: add "INSTRUCTIONS", massage changelog]
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
.../kvm/x86_64/pmu_event_filter_test.c | 52 ++++++++++---------
1 file 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 a00a9d6ea41e..9b53e02a0565 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);
}
/*
--
2.40.0.577.gac1e443424-goog
