Virtual Memory 2: page table tricks

Intro / Flashback (06:24)

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x86-32 page table entry vs addresses (ORing the flag bits) (00:49)

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xv6: Constructing Page tables (00:46)

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xv6: Using the page table macros (02:57)

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xv6: Page table utility functions (00:21)

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kalloc/free (00:29)

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walkpgdir and mappages (00:52)

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accockvm, allocuvm, deallocuvm (02:54)

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xv6: Finding page table entries (walkpgdir) (08:45)

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mappages (02:51)

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setting process page tables (break this up) (13:43)

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xv6: Page faults (08:09)

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exercise (09:52)

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Allocation on demand really (01:18)

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xv6: Adding space on demand, vs real OSes (00:47)

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Fast copies (copy-on-write) (06:22)

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exercise (97:52:41)

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