[PATCH] cxl: Add support for ASB_Notify on POWER9

[Benjamin Herrenschmidt]

On Fri, 2017-11-24 at 17:37 +0100, christophe lombard wrote:
> You are right. We will insert a checking in the cxl driver to allow
> updating the TIDR if a P9 is present. This will be in the patch V2.
> Thanks

Best is to actually:

 1) Add something to the device-tree in skiboot (and work with pHyp &
KVM to do the same if not already in ibm,pa-features)

 2) Key off htat.

Nick, anything in your new feature stuff too ?

Ben.