diff options
| author | Sean Christopherson <seanjc@google.com> | 2025-01-10 16:50:48 -0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-02-14 07:02:13 -0800 |
| commit | 16fc7cb406a5108182852229abe6804ecbad8d06 (patch) | |
| tree | e5880e508b34e3acbb3416afbe093b0739a31d70 /tools/testing/selftests/kvm/x86 | |
| parent | 9b56532b8a593c3a3cbbd8b17fb87ffb4beee436 (diff) | |
KVM: selftests: Add infrastructure for getting vCPU binary stats
Now that the binary stats cache infrastructure is largely scope agnostic,
add support for vCPU-scoped stats. Like VM stats, open and cache the
stats FD when the vCPU is created so that it's guaranteed to be valid when
vcpu_get_stats() is invoked.
Account for the extra per-vCPU file descriptor in kvm_set_files_rlimit(),
so that tests that create large VMs don't run afoul of resource limits.
To sanity check that the infrastructure actually works, and to get a bit
of bonus coverage, add an assert in x86's xapic_ipi_test to verify that
the number of HLTs executed by the test matches the number of HLT exits
observed by KVM.
Tested-by: Manali Shukla <Manali.Shukla@amd.com>
Link: https://lore.kernel.org/r/20250111005049.1247555-9-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/testing/selftests/kvm/x86')
| -rw-r--r-- | tools/testing/selftests/kvm/x86/xapic_ipi_test.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/x86/xapic_ipi_test.c b/tools/testing/selftests/kvm/x86/xapic_ipi_test.c index a76078a08ff8..574a944763b7 100644 --- a/tools/testing/selftests/kvm/x86/xapic_ipi_test.c +++ b/tools/testing/selftests/kvm/x86/xapic_ipi_test.c @@ -465,6 +465,8 @@ int main(int argc, char *argv[]) cancel_join_vcpu_thread(threads[0], params[0].vcpu); cancel_join_vcpu_thread(threads[1], params[1].vcpu); + TEST_ASSERT_EQ(data->hlt_count, vcpu_get_stat(params[0].vcpu, halt_exits)); + fprintf(stderr, "Test successful after running for %d seconds.\n" "Sending vCPU sent %lu IPIs to halting vCPU\n" |