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[4/5] KVM: selftests: Make hyperv_clock require TSC based system clocksource

Message ID 20240109141121.1619463-5-vkuznets@redhat.com (mailing list archive)
State New, archived
Headers show
Series KVM: selftests: Fix clocksource requirements in tests | expand

Commit Message

Vitaly Kuznetsov Jan. 9, 2024, 2:11 p.m. UTC 
KVM sets up Hyper-V TSC page clocksource for its guests when system
clocksource is 'based on TSC' (see gtod_is_based_on_tsc()), running
hyperv_clock with any other clocksource leads to imminent failure.

Add the missing requirement to make the test skip gracefully.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
---
 tools/testing/selftests/kvm/x86_64/hyperv_clock.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_clock.c b/tools/testing/selftests/kvm/x86_64/hyperv_clock.c
index f5e1e98f04f9..02cc3c560566 100644
--- a/tools/testing/selftests/kvm/x86_64/hyperv_clock.c
+++ b/tools/testing/selftests/kvm/x86_64/hyperv_clock.c
@@ -212,6 +212,7 @@  int main(void)
 	int stage;
 
 	TEST_REQUIRE(kvm_has_cap(KVM_CAP_HYPERV_TIME));
+	TEST_REQUIRE(sys_clocksource_is_based_on_tsc());
 
 	vm = vm_create_with_one_vcpu(&vcpu, guest_main);