Hi Jiatong, Do you have access to the serial? If so, it is possible that the boot is actually successful and it is only the screen initialization the problem.
If kunpeng 920 is a UEFI/ACPI machine, we know that there are issues with screen initialization. Cheers, Stefano On Fri, 9 Jun 2023, Jiatong Shen wrote: > Hello community, > > I need help for debugging XEN on aarch64 architecture. The machine I am > working on is a kunpeng 920 armv8 compatible CPU. I use debian 11 > as operating system and installed xen-system-arm64 without any problem. But > when I boot into xen hypervisor mode, the machine screen is > black out without any output or any helpful debugging message. > > Could you generously provide some hints for debugging the issue? Thank you > very much in advance and looking forward to hearing from you. > > -- > > Best Regards, > > Jiatong Shen > >