Volodymyr Babchuk writes ("[PATCH v7 1/5] tools/arm: tee: add "tee" option for xl.cfg"):
This enumeration controls TEE type for a domain. Currently there is two possible options: either 'none' or 'optee'.
'none' is the default value and it basically disables TEE support at all.
'optee' enables access to the OP-TEE running on a host machine. This requires special OP-TEE build with virtualization support enabled.
Acked-by: Ian Jackson ian.jackson@eu.citrix.com