tree 002825b7f53b64700d85701a9c9d3f19a4c20ef8
parent 63f2fdb2f9faba2ae32447290f9ec39025da71be
author Raghu Krishnamurthy <raghupathyk@nvidia.com> 1728865363 -0700
committer Soby Mathew <soby.mathew@arm.com> 1730900308 +0100

docs: el3 token signing

Add documentation for the feature where EL3 can be used to sign realm
attestation token requests using RMM_EL3_TOKEN_SIGN command.
This patch also adds documentation for the RMM_EL3_FEATURES features
command that can be used to discover support for features such as
RMM_EL3_TOKEN_SIGN.

Change-Id: Iab5a157761ed17931210c3702f813198fc9c4b3a
Signed-off-by: Raghu Krishnamurthy <raghupathyk@nvidia.com>