kvm_hypercall2
kvm_hypercall2(KVM_HCALL_FUNC_NOTIFY, BIT(KVM_FEATURE_STEAL_TIME), addr);
kvm_hypercall2(KVM_HCALL_FUNC_NOTIFY, BIT(KVM_FEATURE_STEAL_TIME), 0);
kvm_hypercall2(KVM_HC_KICK_CPU, flags, apicid);
ret = kvm_hypercall2(KVM_HC_CLOCK_PAIRING,
ret = kvm_hypercall2(KVM_HC_CLOCK_PAIRING, clock_pair_gpa,
ret = kvm_hypercall2(KVM_HC_CLOCK_PAIRING,