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

[Julien Grall <julien.grall@xxxxxxx>]

Hi Stephen,

On 14/01/2019 19:10, s_graf@xxxxxxxxx wrote:
> 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
This seem to be a copy of the x86 version because HVM does not exist on Arm. I 
looked at the source code and can't find any evidence of Arm support. Actually, 
you should get a build error as src/sys/dev/pv/xenreg.h does not implement 
hypercall for Arm.
It might be worth asking on their mailing list if someone is working on the 
support. Otherwise, the port should not feasible as the requirement for Xen is 
pretty limited. See [1] for some insights how to do it.
Best regards,

[1] https://xenbits.xen.org/people/julieng/bsdcan-2015.pdf

--
Julien Grall

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