From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <seanjc@google.com>
Cc: Oliver Upton <oupton@google.com>, linux-kernel@vger.kernel.org
Subject: [PATCH 4/5] KVM: selftests: Make hyperv_clock require TSC based system clocksource
Date: Tue, 9 Jan 2024 15:11:20 +0100 [thread overview]
Message-ID: <20240109141121.1619463-5-vkuznets@redhat.com> (raw)
In-Reply-To: <20240109141121.1619463-1-vkuznets@redhat.com>
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 --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);
--
2.43.0
next prev parent reply other threads:[~2024-01-09 14:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-09 14:11 [PATCH 0/5] KVM: selftests: Fix clocksource requirements in tests Vitaly Kuznetsov
2024-01-09 14:11 ` [PATCH 1/5] KVM: selftests: Generalize check_clocksource() from kvm_clock_test Vitaly Kuznetsov
2024-01-30 23:24 ` Sean Christopherson
2024-01-09 14:11 ` [PATCH 2/5] KVM: selftests: Use generic sys_clocksource_is_tsc() in vmx_nested_tsc_scaling_test Vitaly Kuznetsov
2024-01-09 14:11 ` [PATCH 3/5] KVM: selftests: Run clocksource dependent tests with hyperv_clocksource_tsc_page too Vitaly Kuznetsov
2024-01-09 14:11 ` Vitaly Kuznetsov [this message]
2024-01-09 14:11 ` [PATCH 5/5] KVM: x86: Make gtod_is_based_on_tsc() return 'bool' Vitaly Kuznetsov
2024-01-29 9:03 ` [PATCH 0/5] KVM: selftests: Fix clocksource requirements in tests Vitaly Kuznetsov
2024-01-31 0:59 ` Sean Christopherson
2024-02-01 17:00 ` Sean Christopherson
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