From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Date: Thu, 2 Apr 2020 14:24:59 +0300 >> [ 2.505276] f029b788: ttyHV0 at I/O 0x0 (irq = 1, base_baud = >> 115200) is a SUN4V HCONS > > Also, this is funny address. Can you elaborate how is this working? There are no "addresses" for this device as it is implemented via hypervisor calls.