commit 00b3b9a25e768c935ac2ed2fa8f50157390e7204
author Jens Wiklander <jens.wiklander@linaro.org> Mon Aug 31 22:23:20 2020 +0200
committer Jérôme Forissier <jerome@forissier.org> Tue Oct 27 13:22:10 2020 +0100
tree 7e71680a484eaf0480a48c6114e05b1cd0d11360
parent d0e3efa66ecda540f2726184e6156dffaf9d6eda

core: add generic struct ts_session

As a step in making room for Secure Partitions (SPs) running at S-EL0
add a Trusted Service (TS) abstraction. Both TAs and SPs is a TS.

Adds the generic struct ts_session. All future sessions structs
(currently only struct tee_ta_session exists) should add this struct to
allow generic session operations.

With this struct comes new functions replacing previous struct
tee_ta_session oriented functions. The following functions are replaced
as:
tee_ta_get_current_session() -> ts_get_current_session()
tee_ta_push_current_session() -> ts_push_current_session()
tee_ta_pop_current_session() -> ts_pop_current_session()
tee_ta_get_calling_session() -> ts_get_calling_session()

ts_get_current_session() is changed compared to its predecessor to
panic() in case of failure to return a valid pointer.

A new function ts_get_current_session_may_fail() is added to handle an
eventual case where a return NULL session may be handled.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>