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KVM: selftests: Make hyperv_clock require TSC based system clocksource

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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>
Link: https://lore.kernel.org/r/20240109141121.1619463-5-vkuznets@redhat.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Vitaly Kuznetsov 2024-01-09 15:11:20 +01:00 committed by Sean Christopherson
parent 09951bf2cb
commit b6831a108b
1 changed files with 1 additions and 0 deletions
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tools/testing/selftests/kvm/x86_64/hyperv_clock.c
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@ -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);