Re: [PATCH v1 19/29] cxl/region: Use endpoint's HPA range to find the port's decoder

[Robert Richter]

On 17.01.25 15:31:51, Ben Cheatham wrote:
> On 1/7/25 8:10 AM, Robert Richter wrote:
> > For the implementation of address translation it might not be possible
> > to determine the root decoder in the early enumeration state since the
> > SPA range is still unknown. Instead, the endpoint's HPA range is known
> > and from there the topology can be traversed up to the root port while
> > the memory range is adjusted from one memory domain to the next up to
> > the root port.
> > 
> > In a first step, use endpoint's HPA range to find the port's decoder.
> > Without address translation there is HPA == SPA. Then, the HPA range
> > of the endpoint can be used instead of the root decoder's range as
> > both are the same.
> 
> I think this can be clearer. Something like:
> 
> "In a first step, use endpoint's HPA range to find the port's decoder.
> Without address translation HPA == SPA, so the endpoint's HPA range can
> be used since it is the same as the root decoder's.

Changed, thanks.

-Robert