Paper might also wish to cite Plan 9's devtls as related work

[nwf]

See the manpages at http://man.cat-v.org/plan_9/2/pushtls (user-facing API) and http://man.cat-v.org/plan_9/3/tls (kernel driver)

[fridex]

Thanks a lot! This looks really interesting, I didn't know about it.

BTW if you are interested: in-kernel TLS implementations could be found in Solaris [1] and I know that Netflix experimented with similar approach to AF_KTLS [2]. We could add all of them to README as well.

[1] https://docs.oracle.com/cd/E23823_01/html/816-5175/kssl-5.html
[2] https://people.freebsd.org/~rrs/asiabsd_2015_tls.pdf