Mapping the Kernel

Kernel

• Digital Unix Kseg

  • kseg (bit 63 = 1, 62 = 0)

• Kernel has direct access to physical memory

• One VA->PA mapping for entire Kernel

• Lock (pin) TLB entry

  • or special HW detection

User

Stack

Kernel

User

Code/

Data

Physical

Memory

0

264-1

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