On Thu, Aug 19, 2021 at 10:52:53AM +0100, Christoph Hellwig wrote:

Which suggest that the name is not good to start with. Maybe protected hardware, system or platform might be a better choice?

Yah, coming up with a proper name here hasn't been easy. prot_guest_has() is not the first variant.

From all three things you suggest above, I guess calling it a "platform"

is the closest. As in, this is a confidential computing platform which provides host and guest facilities etc.

So calling it

confidential_computing_platform_has()

is obviously too long.

ccp_has() clashes with the namespace of drivers/crypto/ccp/ which is used by the technology too.

coco_platform_has() is too unserious.

So I guess

cc_platform_has()

ain't all that bad.

Unless you have a better idea, ofc.