| Virtual memory: page management | ||||||||||||||
| Page fault: valid bit for virtual page is 0 | ||||||||||||||
| Operating system gets control, finds required page and puts it in memory | ||||||||||||||
| Virtual address does not directly tell where page is on disk | ||||||||||||||
| Operating system has data structure to keep track of where pages are located | ||||||||||||||
| May be part of page table or separate | ||||||||||||||
| Example of single table: | ||||||||||||||
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| Fig 7.23 | ||||||||||||||