Virtual memory scratch pages

Details Virtual memory scratch pages Virtual memory scratch pages

1997-02-06

1999-02-16

Swann, Tod R.

Electrical computers and digital processing systems: memory

Address formation

Address mapping

711203, G06F 1210

Patent

active

058731245

ABSTRACT:
A computer system includes physical memory, a virtual memory system, and a protected operating system kernel. The kernel has kernel functions that accept and use virtual memory addresses from user processes. When an invalid virtual memory address is used by a kernel function, the memory address is automatically mapped to a scratch location in physical memory, so that the kernel function accesses the scratch location rather than generating an exception.

REFERENCES:
Rashid, Richard et al., "Machine-Independent Virtual Memory Management for Pages Uniprocessor and Multiprocessor Architectures," Department of Computer Science, Carnegie Mellon University, 1987.
Bala, Kavita et al., "Software Prefetching and Caching for Translation Lookaside Buffers," MIT Laboratory for Computer Science, Cambridge, MA, date unknown.

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