Mailing List Archive

Hi Stefano,

Thank you very much for the reply. I do have access to serial but the
machine is near my work space right now, so
I might need some extra time to go to datacenter first. I'll let you know
if it is indeed working.

Thank you very much again.


Best regards,.

Jiatong Shen

On Fri, Jun 9, 2023 at 6:39?AM Stefano Stabellini <sstabellini@kernel.org>
wrote:

> 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
> >
> >



--

Best Regards,

Jiatong Shen

On 08/06/2023 23:39, Stefano Stabellini wrote:
> 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.

More importantly, you may want to check that if Xen was compiled with
ACPI enabled (unlikely if this is the package from Debian). If not, you
will need to build your own Xen.

Cheers,

--
Julien Grall

Thank you for your answer. Can you teach me how to verify if acpi is
enabled?

Best regards,.
Jiatong Shen

On Fri, Jun 9, 2023 at 9:34?AM Julien Grall <julien@xen.org> wrote:

>
>
> On 08/06/2023 23:39, Stefano Stabellini wrote:
> > 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.
>
> More importantly, you may want to check that if Xen was compiled with
> ACPI enabled (unlikely if this is the package from Debian). If not, you
> will need to build your own Xen.
>
> Cheers,
>
> --
> Julien Grall
>


--

Best Regards,

Jiatong Shen

Hello,

On 09/06/2023 03:32, Jiatong Shen wrote:
> Thank you for your answer. Can you teach me how to verify if acpi is
> enabled?

You usually look at the .config. But I am not sure if this is provided
by the Debian package. If not, then your best option would be to build
your own Xen. To select ACPI, you want to use the menuconfig and select
UNSUPPORTED and ACPI.

Cheers,

--
Julien Grall

Hello Julien,

Thank you very much for your help!

Best,

Jiatong Shen

On Fri, Jun 9, 2023 at 4:48?PM Julien Grall <julien@xen.org> wrote:

> Hello,
>
> On 09/06/2023 03:32, Jiatong Shen wrote:
> > Thank you for your answer. Can you teach me how to verify if acpi is
> > enabled?
>
> You usually look at the .config. But I am not sure if this is provided
> by the Debian package. If not, then your best option would be to build
> your own Xen. To select ACPI, you want to use the menuconfig and select
> UNSUPPORTED and ACPI.
>
> Cheers,
>
> --
> Julien Grall
>


--

Best Regards,

Jiatong Shen