diff options
| author | Mustafa Yigit Bilgen <mbilgen@nvidia.com> | 2018-12-03 15:53:38 -0800 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2020-03-21 19:00:05 -0700 |
| commit | bd0c2f8d99533f2fa497444e7b8c52ac0a3d76cd (patch) | |
| tree | edf95f1c10087071661ca5eafd940574d67fcd9b /services | |
| parent | a45c3e9d81c0c8f3ab4a1724bf2f7373464f021e (diff) | |
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>
Diffstat (limited to 'services')
| -rw-r--r-- | services/spd/tlkd/tlkd_main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/services/spd/tlkd/tlkd_main.c b/services/spd/tlkd/tlkd_main.c index 481bb69e3..ecac43522 100644 --- a/services/spd/tlkd/tlkd_main.c +++ b/services/spd/tlkd/tlkd_main.c @@ -272,6 +272,9 @@ static uintptr_t tlkd_smc_handler(uint32_t smc_fid, case TLK_TA_LAUNCH_OP: case TLK_TA_SEND_EVENT: case TLK_RESUME_FID: + case TLK_SET_BL_VERSION: + case TLK_LOCK_BL_INTERFACE: + case TLK_BL_RPMB_SERVICE: if (!ns) SMC_RET1(handle, SMC_UNK); |