On Wed, 2020-08-19 at 13:18 -0300, Jason Gunthorpe wrote: > Yes - it was dropped because TPM 2 was a *complete ABI break* for > everything. The kernel was reset to a uABI that matches current > uABI standards starting TPM 2. > > The whole userspace needed to be redone anyhow, and certainly nobody > objected at the time. > > At least my expecation was that a sensible userspace for TPM (for > administrator user) would be built, like we see in other subsystems eg > 'ip' for netdev. "Because TPM 2 was a complete ABI break for everything" could be reason for upstreaming a minimal subset of functionality initially, which could be expanded over time. I don't recall a discussion about limting features in the future. Mimi
