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KVM: selftests: Print out the actual Top-Down Slots count on failure

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Print out the expected vs. actual count of the Top-Down Slots event on
failure in the Intel PMU counters test.  GUEST_ASSERT() only expands
constants/macros, i.e. only prints the value of the expected count, which
makes it difficult to debug and triage failures.

Link: https://lore.kernel.org/r/20250117234204.2600624-6-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson 2025-01-17 15:42:03 -08:00
parent 0e6714735c
commit 54108e7334
1 changed files with 3 additions and 1 deletions
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4
tools/testing/selftests/kvm/x86/pmu_counters_test.c
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@ -174,7 +174,9 @@ static void guest_assert_event_count(uint8_t idx, uint32_t pmc, uint32_t pmc_msr
GUEST_ASSERT_NE(count, 0);
break;
case INTEL_ARCH_TOPDOWN_SLOTS_INDEX:
GUEST_ASSERT(count >= NUM_INSNS_RETIRED);
__GUEST_ASSERT(count >= NUM_INSNS_RETIRED,
"Expected top-down slots >= %u, got count = %lu",
NUM_INSNS_RETIRED, count);
break;
default:
break;