This is not (specifically) for the OS. This is for non-volatile memory that is directly attached to the memory bus. The OS can then directly map NVRAM into the

This is not (specifically) for the OS. This is for non-volatile memory that is directly attached to the memory bus. The OS can then directly map NVRAM into the address space of a user-space process; the application could use these instructions to efficiently ensure the crash consistency of its persistent data.