Re: [PATCH V6 0/7] ACPI: Support Generic Initiator proximity domains

[Brice Goglin]

Le 16/12/2019 Ã 16:38, Jonathan Cameron a ÃcritÂ:
> Introduces a new type of NUMA node for cases where we want to represent
> the access characteristics of a non CPU initiator of memory requests,
> as these differ from all those for existing nodes containing CPUs and/or
> memory.
>
> These Generic Initiators are presented by the node access0 class in
> sysfs in the same way as a CPU.   It seems likely that there will be
> usecases in which the best 'CPU' is desired and Generic Initiators
> should be ignored.  The final few patches in this series introduced
> access1 which is a new performance class in the sysfs node description
> which presents only CPU to memory relationships.  Test cases for this
> are described below.


Hello Jonathan

If I want to test this with a fake GI, what are the minimal set of
changes I should put in my ACPI tables? Can I just specify a dummy GI in
SRAT? What handle should I use there?

Thanks

Brice