Storage protection unit

A method comprising:

• processing, by a memory controller in a non-volatile memory device, accesses by initiators to regions of non-volatile memory in the non-volatile memory device during a learning phase;
• assuming, by the memory controller, that the initiators are permitted to access the regions during the learning phase;
• storing a mapping between the initiators and the regions of the non-volatile memory accessed by the initiators during the learning phase;
• verifying, by a host controller during an access control phase, an initiator identifier in a memory access message;
• providing, by the host controller during the access control phase, the memory access message to the non-volatile memory device;
• accessing, by the memory controller during the access control phase, the initiator identifier in the memory access message;
• and
• granting or denying access to non-volatile memory on the non-volatile memory device during the access control phase, by the memory controller, based on whether the stored mapping indicates that the initiator identified in the memory access message has access rights to a region of the non-volatile memory indicated by the memory access message.

A non-volatile memory system, comprising:

• a non-volatile memory device comprising:
• i) non-volatile memory;
• ii) first means for controlling the non-volatile memory;
• and
• iii) second means for communicating with a host connected to the non-volatile memory device;
• and
• a host comprising:
• i) a plurality of host sub-systems;
• ii) third means for communicating with the non-volatile memory device via the second means;
• iii) host memory;
• and
• iv) fourth means for:
• accessing a Universal Flash Storage (UFS) Protocol Information Unit from the host memory;
• inserting, into the UFS Protocol Information Unit, an identifier of an initiator host sub-system that seeks access to the non-volatile memory;
• and
• providing the UFS Protocol Information Unit to the non-volatile memory device;
• wherein the first means is further for:
• accessing the identifier of the initiator host sub-system from the UFS Protocol Information Unit;
• and
• granting or denying non-volatile memory access to the initiator host sub-system based on whether the initiator host sub-system has access rights to a region of the non-volatile memory to which the initiator host sub-system seeks access.