From: Like Xu <likexu@xxxxxxxxxxx>
This test case uses MSR_IA32_PERFCTR0 to count branch instructions
and PERFCTR1 to count instruction events. The same correspondence
should be maintained at report(), specifically this should use
status bit 1 for instructions and bit 0 for branches.
Fixes: 20cf914 ("x86/pmu: Test PMU virtualization on emulated instructions")
Reported-by: Sandipan Das <sandipan.das@xxxxxxx>
Signed-off-by: Like Xu <likexu@xxxxxxxxxxx>
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
x86/pmu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/x86/pmu.c b/x86/pmu.c
index da8c004a..715b45a3 100644
--- a/x86/pmu.c
+++ b/x86/pmu.c
@@ -512,8 +512,8 @@ static void check_emulated_instr(void)
"branch count");
// Additionally check that those counters overflowed properly.
status = rdmsr(MSR_CORE_PERF_GLOBAL_STATUS);
- report(status & 1, "instruction counter overflow");
- report(status & 2, "branch counter overflow");
+ report(status & 1, "branch counter overflow");
+ report(status & 2, "instruction counter overflow");
report_prefix_pop();
}
--
2.38.1.431.g37b22c650d-goog
