3 ms·
Why is it that the baseband has full access to main memory?
by monochromatic 11y ago
Why is it that the baseband has full access to main memory?
- seba_dos1 11y agoIntegration, miniaturization, power management, cost reduction... it's the easiest way, so when you disregard proper isolation and security, then it actually seems like the way to go.
- Sanddancer 11y agoBecause most chips and peripherals that work at a decently high speed on any computer use DMA. A parallel port on a computer, a thunderbolt connector, Ethernet cards, etc all use DMA for similar desires to speed up communication, and all can have the potential to be attacked. In order for a phone to give decent performance, DMA becomes more and more of a necessity.
- tptacek 11y agoThey don't.