HYPERVISOR_xenpmu_op
ret = HYPERVISOR_xenpmu_op(XENPMU_lvtpc_set, NULL);
err = HYPERVISOR_xenpmu_op(XENPMU_flush, NULL);
err = HYPERVISOR_xenpmu_op(XENPMU_init, &xp);
(void)HYPERVISOR_xenpmu_op(XENPMU_finish, &xp);
ret = HYPERVISOR_xenpmu_op(XENPMU_mode_set, &xp);
ret = HYPERVISOR_xenpmu_op(XENPMU_mode_get, &xp);
ret = HYPERVISOR_xenpmu_op(XENPMU_feature_set, &xp);
ret = HYPERVISOR_xenpmu_op(XENPMU_feature_get, &xp);