sparc: Don't do hypervisor calls on non-sun4v in DS driver.

Reported-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc/kernel/ds.c

@@ -1256,13 +1256,14 @@ static int __init ds_init(void)
 {
 	unsigned long hv_ret, major, minor;
 
+	if (tlb_type == hypervisor) {
 		hv_ret = sun4v_get_version(HV_GRP_REBOOT_DATA, &major, &minor);
 		if (hv_ret == HV_EOK) {
 			pr_info("SUN4V: Reboot data supported (maj=%lu,min=%lu).\n",
 				major, minor);
 			reboot_data_supported = 1;
 		}
-
+	}
 	kthread_run(ds_thread, NULL, "kldomd");
 
 	return vio_register_driver(&ds_driver);