I/O and Virtual Caches

I/O Bus

Memory Bus

Processor

Cache

Main

Memory

Disk

Controller

Disk

Disk

Graphics

Controller

Network

Interface

Graphics

Network

interrupts

I/O Bridge

Virtual

Cache

Physical

Addresses

I/O is accomplished

with physical addresses

DMA

• flush pages from cache

• need pa->va reverse

translation

• coherent DMA

Previous slide

Back to first slide

View graphic version