tree edf95f1c10087071661ca5eafd940574d67fcd9b
parent 3eaf4a2c488c863085d216aa4e00d1b88cd01148
author Mustafa Yigit Bilgen <mbilgen@nvidia.com> 1543881218 -0800
committer Varun Wadekar <vwadekar@nvidia.com> 1584842405 -0700

spd: tlkd: support new TLK SMCs for RPMB service

This patch adds support to handle following TLK SMCs:
{TLK_SET_BL_VERSION, TLK_LOCK_BL_INTERFACE, TLK_BL_RPMB_SERVICE}

These SMCs need to be supported in ATF in order to forward them to
TLK. Otherwise, these functionalities won't work.

Brief:
TLK_SET_BL_VERSION: This SMC is issued by the bootloader to supply its
version to TLK. TLK can use this to prevent rollback attacks.

TLK_LOCK_BL_INTERFACE: This SMC is issued by bootloader before handing off
execution to the OS. This allows preventing sensitive SMCs being used
by the OS.

TLK_BL_RPMB_SERVICE: bootloader issues this SMC to sign or verify RPMB
frames.

Tested by: Tests TLK can receive the new SMCs issued by bootloader

Change-Id: I57c2d189a5f7a77cea26c3f8921866f2a6f0f944
Signed-off-by: Mustafa Yigit Bilgen <mbilgen@nvidia.com>