Hyper-V TSC page clocksource is TSC based so it requires host to use TSC for clocksource. While TSC is more or less standard for x86 hardware nowadays, when kvm-unit-tests are run in a VM the clocksource tends to be different (e.g. kvm-clock). Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> --- x86/unittests.cfg | 1 + 1 file changed, 1 insertion(+) diff --git a/x86/unittests.cfg b/x86/unittests.cfg index 504e04e5f2b5..3a7915143479 100644 --- a/x86/unittests.cfg +++ b/x86/unittests.cfg @@ -334,6 +334,7 @@ smp = 2 extra_params = -cpu kvm64,hv_time arch = x86_64 groups = hyperv +check = /sys/devices/system/clocksource/clocksource0/current_clocksource=tsc [intel_iommu] file = intel-iommu.flat -- 2.25.4