Re: [PATCH] spapr: Add "memop" hypercall

[Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>]

On Mon, 2012-05-28 at 13:40 +0300, Avi Kivity wrote:
> Depends.  How do you detect it exists?  Are you detecting kvm, or qemu,
> or the hypercall itself?
> 
> I'd hate us to find ourselves in a maze of disconnected documentation
> with no clear guidelines on when a feature is available and when it is not.

At the moment SLOF just "uses it" when using the frame buffer. We could
advertise its presence via the device-tree, there's already stuff there
to expose what hypercalls or set of hypecalls are implemented for PAPR,
we could add qemu specific extensions.

Cheers,
Ben.


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