You'd need to pin pages in physical memory to guarantee it stays in physical memory. What happens if an 'attacker' (or accidental user) exceeds available physical memory? OOM Kill other applications? Just don't accept temp data, leading to failures in operations requested by the user or system?
Pages in physical memory are not typically zero'ed out upon disuse. Yes, they're temporary... but only guaranteed temporary if you turn the system off and the DRAM cells bleed out their voltage.
Pages in physical memory are not typically zero'ed out upon disuse. Yes, they're temporary... but only guaranteed temporary if you turn the system off and the DRAM cells bleed out their voltage.