[Tee-dev] OP-TEE OS: Param Mapping in TA

Hi all,

Is there any reason, why we expect all the memref param physical address to be in MEM_AREA_NSEC_SHM?

More specifically, why is it hard to map arbitrary non-secure user-space pages into TA?

MEM_AREA_NSEC_SHM restriction imposes unnecessary limit on TA.

If I want to implement some integrity checking mechanism on large sections of memory, this restriction makes it almost impossible.

-Best,

Aravind