if a pte's present bit is clear, how does the kernel know where it lies in harddisk, and transfer it back to physic memory. Yes i know the LBA mode of harddisk which says all memory can be accessed by their ordinal,but nowadays 500G is a common capacity of harddisk,the address line of 80x86 is 32,which addrss up to 4GB,then how does it deal whith 500G or 1TB,and differenciate with the physical address space?
Thanks advance!