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| author | Sean Christopherson <seanjc@google.com> | 2023-03-11 01:46:10 +0100 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-04-06 23:58:44 +0200 |
| commit | 69713940d2b4de34a6923fc202e1796dc2f79604 (patch) | |
| tree | f4e3ffe967e9da6369e1646a81d9285740fa75b1 /tools/testing | |
| parent | KVM: selftests: Verify KVM preserves userspace writes to "durable" MSRs (diff) | |
| download | linux-69713940d2b4de34a6923fc202e1796dc2f79604.tar.xz linux-69713940d2b4de34a6923fc202e1796dc2f79604.zip | |
KVM: selftests: Drop now-redundant checks on PERF_CAPABILITIES writes
Now that vcpu_set_msr() verifies the expected "read what was wrote"
semantics of all durable MSRs, including PERF_CAPABILITIES, drop the
now-redundant manual checks in the VMX PMU caps test.
Link: https://lore.kernel.org/r/20230311004618.920745-14-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c index 035470b38400..f7a27b5c949b 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c @@ -51,10 +51,7 @@ static void test_basic_perf_capabilities(union perf_capabilities host_cap) struct kvm_vm *vm = vm_create_with_one_vcpu(&vcpu, NULL); vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, 0); - ASSERT_EQ(vcpu_get_msr(vcpu, MSR_IA32_PERF_CAPABILITIES), 0); - vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, host_cap.capabilities); - ASSERT_EQ(vcpu_get_msr(vcpu, MSR_IA32_PERF_CAPABILITIES), host_cap.capabilities); kvm_vm_free(vm); } @@ -67,9 +64,6 @@ static void test_fungible_perf_capabilities(union perf_capabilities host_cap) /* testcase 1, set capabilities when we have PDCM bit */ vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, PMU_CAP_FW_WRITES); - /* check capabilities can be retrieved with KVM_GET_MSR */ - ASSERT_EQ(vcpu_get_msr(vcpu, MSR_IA32_PERF_CAPABILITIES), PMU_CAP_FW_WRITES); - /* check whatever we write with KVM_SET_MSR is _not_ modified */ vcpu_run(vcpu); ASSERT_EQ(vcpu_get_msr(vcpu, MSR_IA32_PERF_CAPABILITIES), PMU_CAP_FW_WRITES); |