KVM: selftests: Add timing_info bit support in vmx_pmu_caps_test

A new bit PERF_CAPABILITIES[17] called "PEBS_TIMING_INFO" bit is added
to indicated if PEBS supports to record timing information in a new
"Retried Latency" field.

Since KVM requires user can only set host consistent PEBS capabilities,
otherwise the PERF_CAPABILITIES setting would fail, add pebs_timing_info
into the "immutable_caps" to block host inconsistent PEBS configuration
and cause errors.

Opportunistically drop the anythread_deprecated bit.  It isn't and likely
never was a PERF_CAPABILITIES flag, the test's definition snuck in when
the union was copy+pasted from the kernel's definition.

Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Tested-by: Yi Lai <yi1.lai@intel.com>
[sean: call out anythread_deprecated change]
Tested-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Link: https://lore.kernel.org/r/20250919214648.1585683-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

diff --git a/tools/testing/selftests/kvm/x86/vmx_pmu_caps_test.c b/tools/testing/selftests/kvm/x86/vmx_pmu_caps_test.c
index a1f5ff45d518d375701077327071d74005fb079a..f8deea22015689471e7196417838041e113b41b6 100644 (file)
--- a/tools/testing/selftests/kvm/x86/vmx_pmu_caps_test.c
+++ b/tools/testing/selftests/kvm/x86/vmx_pmu_caps_test.c
@@ -29,7 +29,7 @@ static union perf_capabilities {
                u64 pebs_baseline:1;
                u64     perf_metrics:1;
                u64     pebs_output_pt_available:1;
-               u64     anythread_deprecated:1;
+               u64     pebs_timing_info:1;
        };
        u64     capabilities;
 } host_cap;
@@ -44,6 +44,7 @@ static const union perf_capabilities immutable_caps = {
        .pebs_arch_reg = 1,
        .pebs_format = -1,
        .pebs_baseline = 1,
+       .pebs_timing_info = 1,
 };
 
 static const union perf_capabilities format_caps = {