[Skiboot] [PATCH v3 0/6] Enable basic VAS support

Sukadev Bhattiprolu sukadev at linux.vnet.ibm.com
Thu Dec 1 06:06:27 AEDT 2016

Balbir Singh [bsingharora at gmail.com] wrote:
> On 30/11/16 16:36, Sukadev Bhattiprolu wrote:
> > This OPAL patch set initializes the VAS registers and makes the VAS
> > hardware available to the NX-842 driver in the kernel. It also provides
> > some interfaces that the NX-842 subsystem in OPAL needs to initialize
> > the NX hardware in Power9.
> Hi, Suka
> Is there a device-tree interface for discovery of these devices? It would
> be good to call it out here and document the discovery process for the
> hypervisor kernel and beyond

Well, NX already has some device tree nodes that Haren's patches will update
for VAS. But as of now, don't see a need for VAS-specific device tree nodes.
Kernel can/will attempt to initialize VAS based on the processor version (P9)
for now. If a device tree node becomes necessary, we can maybe add later?



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