tree 3e72e2d4d6742e78a2b451144f44c31c953f2c2d
parent 68ea9545db4d8ec01711dfe0b7cdcfc3977d46f3
author Soby Mathew <soby.mathew@arm.com> 1647965979 +0000
committer Soby Mathew <soby.mathew@arm.com> 1648228346 +0000

feat(rme): add dummy platform token to RMMD

Add a dummy platform token to RMMD and return it on request. The
platform token is requested with an SMC with the following parameters:
    * Fid (0xC40001B3).
    * Platform token PA (the platform token is copied at this address by
      the monitor). The challenge object needs to be passed by
      the caller in this buffer.
    * Platform token len.
    * Challenge object len.

When calling the SMC, the platform token buffer received by EL3 contains
the challenge object. It is not used on the FVP and is only printed to
the log.

Signed-off-by: Mate Toth-Pal <mate.toth-pal@arm.com>
Signed-off-by: Subhasish Ghosh <subhasish.ghosh@arm.com>
Change-Id: I8b2f1d54426c04e76d7a3baa6b0fbc40b0116348