Re: [Xenomai-help] Running Xenomai in a virtual machine

[Jan Kiszka <jan.kiszka@domain.hid>]

ROSSIER Daniel wrote:
> Just going through this interesting thread, I though it might be of interest - probably not fully related to the topic, but... - to know
> that we are currently working on some integration efforts of Xenomai on top of the XEN hypervisor in the context of the
> embeddedXEN project. For the time being, it is purely devoted to ARM-based processors.
> 
> In case of interest, please visit: https://sourceforge.net/projects/embeddedxen. Xenomai will appear as a natural subtree of embeddedXEN, like xen or minios,
> but currently it is not present yet. The hypervisor and miniOS boots up in Mainstone/QEMU and soon on a Colibri/PXA270 board. EmbeddedXEN is mainly devoted to integrate multiple kernels into a single binary image for embedded systems with the support of hard realtime (domainU-RT, a new kind of Xen domain).

Interesting, will have a look (again). Last time I checked was two years
ago when MontaVista (IIRC) announced it. Does/will this version Xen not
suffer from the RT problems Xen upstream has, e.g. lacking preemptibility?

And what will be the impact on Xenomai? A new sub-arch per real arch?
Will Xenomai run stand-alone or together with a Linux kernel as on real
silicon? In the former case, what will be the programming model,
specifically regarding RT<->non-RT communication?

Jan

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