RISC-V Design · All levels
Privileged Architecture
Privilege domains, trap routing, CSR control surfaces, and Sv39/Sv48 translation behavior that define correctness, security isolation, and OS/runtime performance in RISC-V systems.
Section goal
Privilege domains, trap routing, CSR control surfaces, and Sv39/Sv48 translation behavior that define correctness, security isolation, and OS/runtime performance in RISC-V systems.
How to study this section
Start with each topic hub to establish mechanism-first framing.
Use reports and debug pages to separate symptoms from root cause.
Practice worked examples and interview drills under fixed metadata.
Close with checklist and silicon impact before signoff claims.
Topics
privilege-levels-modes/ - Privilege Levels, Execution Modes, and Delegation Boundaries
traps-interrupts-exceptions/ - Trap Entry/Exit, Interrupt Priority, and Exception Precision
csr-and-timer-model/ - CSR Programming Model, Privilege Visibility, and Timer Facilities
virtual-memory-sv39-sv48/ - Virtual Memory with Sv39/Sv48, TLB Behavior, and Page-Walk Semantics