service_provider is a WO attribute. How can we get the service_provider from TSM?

[thomas-fossati]

@jraman567 notes:

[...] service_provider is a WO attribute. So, how can we get the service_provider from TSM?"

https://www.kernel.org/doc/Documentation/ABI/testing/configfs-tsm

@deeglaze adds:

Yikes, well, that can be included as part of the attestation scheme, I guess. The manifest being write-only seems like a bug on the kernel side, though.

[thomas-fossati]

@deeglaze, I have tentatively assigned this to you.

Could you bring it to linux-coco@ for further advice/discussion?

[thomas-fossati]

On CCA service_provider is write-only, no read ops. At the moment, the driver just stores the value that the user writes without using it.

Not sure what other CC platforms do, but if we follow the docs it should be removed from the CDDL.

[deeglaze]

ratsd would be the one to write it, so it’ll still be needed information to understand the service manifest