Re: [Xen-users] help with openbsd armv7 as domU

[<s_graf@xxxxxxxxx>]

Thank you for your reply.
Yes I am definitely interested.  I think openbsd has support for xen on arm.  
Kernel support is built into other openbsd architectures and I can see the xen 
options in the arm build configs.

https://man.openbsd.org/armv7/xen.4

I have both orangepi one (H3, 32 bit) and orangepi pc2 (H3, 64 bit) systems to 
work with.

Stephen Graf

-----Original Message-----
From: Xen-users <xen-users-bounces@xxxxxxxxxxxxxxxxxxxx> On Behalf Of Julien 
Grall
Sent: January 14, 2019 8:44 AM
To: s_graf@xxxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] help with openbsd armv7 as domU

Hello,

On 29/12/2018 22:56, s_graf@xxxxxxxxx wrote:
> I am trying to run openbsd armv7 as a domU on an orangepi one (Allwinner
> H3).
> I have run openbsd on this hardware for many months.
> I have been able to load xen dom0 on the hardware by building an armbian
> system with the xen options.
> 
> I was hoping to load the bsd ram kernel (bsd.rd) as a domU.
> This kernel runs entirely in memory and so I thought it might be a good
> first step.
> 
> With the cfg below I get an error " Unable to find arch FDT info for
> xen-3.0-unknown",
> which I do not know how to handle. The start-up console log is below.
> 
> When openbsd starts natively on this system u-boot runs bootarm.efi.
> Is there a way to set this up in a domU cfg?

ELF images are not supported by Xen Arm at the moment. However, you still need 
some support in the OS in order to boot as Xen Arm guest. I am not aware of 
such 
support in OpenBSD today (but I might be wrong).

I can provide pointers how to port OpenBSD to Xen Arm Guest if you are 
interested.

Cheers,

-- 
Julien Grall

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