if (r) {
                cpumask_clear_cpu(cpu, cpus_hardware_enabled);
                atomic_inc(&hardware_enable_failed);
-               printk(KERN_INFO "kvm: enabling virtualization on "
-                                "CPU%d failed\n", cpu);
+               pr_info("kvm: enabling virtualization on CPU%d failed\n", cpu);
        }
 }
 
        val &= ~CPU_TASKS_FROZEN;
        switch (val) {
        case CPU_DYING:
-               printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
+               pr_info("kvm: disabling virtualization on CPU%d\n",
                       cpu);
                hardware_disable();
                break;
        case CPU_STARTING:
-               printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
+               pr_info("kvm: enabling virtualization on CPU%d\n",
                       cpu);
                hardware_enable();
                break;
         *
         * And Intel TXT required VMX off for all cpu when system shutdown.
         */
-       printk(KERN_INFO "kvm: exiting hardware virtualization\n");
+       pr_info("kvm: exiting hardware virtualization\n");
        kvm_rebooting = true;
        on_each_cpu(hardware_disable_nolock, NULL, 1);
        return NOTIFY_OK;
 
        r = misc_register(&kvm_dev);
        if (r) {
-               printk(KERN_ERR "kvm: misc device register failed\n");
+               pr_err("kvm: misc device register failed\n");
                goto out_unreg;
        }
 
 
        r = kvm_init_debug();
        if (r) {
-               printk(KERN_ERR "kvm: create debugfs files failed\n");
+               pr_err("kvm: create debugfs files failed\n");
                goto out_undebugfs;
        }