Re: [Xen-devel] Correct DTB compatibility for xen /hypervisor node?

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Mon, 28 Jan 2013, Ian Campbell wrote:
> Looks like we have both 4.2 and 4.3 in use. Which should it be?
> 
> $ rgrep xen-4 arch/arm Documentation/
> arch/arm/boot/dts/xenvm-4.2.dts:              compatible = "xen,xen-4.2", 
> "xen,xen";
> Documentation/devicetree/bindings/arm/xen.txt:        compatible = 
> "xen,xen-4.3", "xen,xen";
> 
> FWIW I've always used 4.2 in my own DTB files.
> 
> Strictly speaking the API is the Xen 3.x API, but that doesn't seem
> terribly relevant.

I have always used 4.2 too.
Even though the one in xen.txt is just an example it might be worth
updating with xen-4.2 to avoid confusions.

> I suppose arch_get_xen_caps ought to return something consistent?

Right.

>From my point of view, it would be useful to return a string
that expresses the current hypervisor version (xen-4.3 from the Xen 4.3
release, xen-4.4 from the Xen 4.4 release and so on) rather than xen-3.0.
I would do the same in the compatibility node of the DTS.

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