On 06/07/2018 18:13, Thomas Gleixner wrote: > @@ -241,6 +269,9 @@ void __init kvmclock_init(void) > return; > } > > + if (!hypervisor_is_type(X86_HYPER_KVM)) > + kvmclock_vsyscall = 0; > + No need for this; by the time you get here, the condition will always be true. And if you don't have kvmclock, hv_clock will be NULL and initialization will be skipped anyway in kvm_setup_vsyscall_timeinfo. Thanks, Paolo