diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c | 26 |
1 files changed, 26 insertions, 0 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 fcb6cf9ae4a9..ca4ff5ad613a 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 @@ -32,6 +32,10 @@ #define MAX_FILTER_EVENTS 300 #define MAX_TEST_EVENTS 10 +#define PMU_EVENT_FILTER_INVALID_ACTION (KVM_PMU_EVENT_DENY + 1) +#define PMU_EVENT_FILTER_INVALID_FLAGS (KVM_PMU_EVENT_FLAGS_VALID_MASK << 1) +#define PMU_EVENT_FILTER_INVALID_NEVENTS (MAX_FILTER_EVENTS + 1) + /* * This is how the event selector and unit mask are stored in an AMD * core performance event-select register. Intel's format is similar, @@ -760,6 +764,8 @@ static int set_pmu_single_event_filter(struct kvm_vcpu *vcpu, uint64_t event, static void test_filter_ioctl(struct kvm_vcpu *vcpu) { + uint8_t nr_fixed_counters = kvm_cpu_property(X86_PROPERTY_PMU_NR_FIXED_COUNTERS); + struct __kvm_pmu_event_filter f; uint64_t e = ~0ul; int r; @@ -780,6 +786,26 @@ static void test_filter_ioctl(struct kvm_vcpu *vcpu) KVM_PMU_EVENT_FLAG_MASKED_EVENTS, KVM_PMU_EVENT_ALLOW); TEST_ASSERT(r == 0, "Valid PMU Event Filter is failing"); + + f = base_event_filter; + f.action = PMU_EVENT_FILTER_INVALID_ACTION; + r = set_pmu_event_filter(vcpu, &f); + TEST_ASSERT(r, "Set invalid action is expected to fail"); + + f = base_event_filter; + f.flags = PMU_EVENT_FILTER_INVALID_FLAGS; + r = set_pmu_event_filter(vcpu, &f); + TEST_ASSERT(r, "Set invalid flags is expected to fail"); + + f = base_event_filter; + f.nevents = PMU_EVENT_FILTER_INVALID_NEVENTS; + r = set_pmu_event_filter(vcpu, &f); + TEST_ASSERT(r, "Exceeding the max number of filter events should fail"); + + f = base_event_filter; + f.fixed_counter_bitmap = ~GENMASK_ULL(nr_fixed_counters, 0); + r = set_pmu_event_filter(vcpu, &f); + TEST_ASSERT(!r, "Masking non-existent fixed counters should be allowed"); } int main(int argc, char *argv[]) |