Re: CXL Boot to Bash - Section 2a (Drivers): CXL Decoder Programming

[Zhijian Li (Fujitsu)]

On 07/03/2025 23:07, Gregory Price wrote:
> So this is just some semantic confusion - and the reality is the driver
> simply refers to the first device in the fabric as "The Root", and every
> device has "A Port", and so the "Root Port" just means it's the Root's
> "Port" not a "CXL Specification Root Port".
> 
> Whatever the case, from the snippets above, you can see the CFMWS adds 1
> "root decoder" per CFMWS - which makes sense, as a CFMWS can describe
> multi-host-bridge interleave - i.e. whatever the actual root device is
> must be upstream of the host bridges themselves.

Gregory,

Many thanks for your detailed explanation. This aligns with what I understood before.

Thanks
Zhijian