Re: [PATCH v2 2/7] dt-bindings: hypervisor: Add MediaTek GenieZone hypervisor

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On Fri, 2023-04-28 at 16:24 -0500, Rob Herring wrote:
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> 
> On Fri, Apr 28, 2023 at 06:36:17PM +0800, Yi-De Wu wrote:
> > From: "Yingshiuan Pan" <yingshiuan.pan@xxxxxxxxxxxx>
> > 
> > Add documentation for GenieZone(gzvm) node. This node informs gzvm
> > driver to start probing if geniezone hypervisor is available and
> > able to do virtual machine operations.
> 
> Why can't the driver just try and do virtual machine operations to
> see
> if the hypervisor is there? IOW, make your software interfaces
> discoverable. DT is for non-discoverable hardware.
> 
> Rob

Can do, our hypervisor is discoverable through invoking probing
hypercall, and we use the device tree to prevent unnecessary module
loading on all systems.




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