[PATCH] arm: introduce a DTS for Xen unprivileged virtual machines

Pawel Moll pawel.moll at arm.com
Thu Sep 20 07:55:33 EDT 2012


On Thu, 2012-09-20 at 12:39 +0100, Stefano Stabellini wrote:
> There are no peripherals apart from the ones that are already described
> here (timer, gic). All the peripherals that the guest sees are virtual
> devices that show up on xenbus (a virtual bus). In order to initialize
> xenbus, the guest only needs the hypervisor node.  So I'll remove the
> ranges and interrupt-map.

So all the peripherals are actually discoverable - awesome!

But the fact is that the only "vexpressness" of this tree is
memory at 80000000 and gic at 2c001000. The rest (not much of it ;-) is a
"generic A15 platform". 

I understand that you had to use some "compatible" value to get
initialization code and I'm flattered ;-) by your choice of
"arm,vexpress", but maybe - as suggested by others - you would be better
off with generating this stuff in runtime, by whatever tool is used to
instantiate the guest?

Paweł






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