This sets a boolean value based on the input u64 and the value of the "nv!nv_graphics_firmware_memory_margin" system configuration, but only for "nvdrv" (the other services default to false).
Official user-processes starting with 3.0.0 now use this at the end of nvdrv service init with value 0x1.
Official user-processes starting with 3.0.0 now use this at the end of nvdrv service init with value 0x1.