Reading Code

A major patch has landed since the last assignment, replacing the “dumbvm” memory system with a more sophisticated one.

You can review the patch in GitHub, but it is also described in the help pages:

• OS/161 VM System, which has the following subpages:
  • A Guide to coremap.c
  • Understanding Logical Pages (lpages) in OS/161
  • Understanding VM Objects and vm_object_setsize in OS/161
  • Understanding the OS/161 Swap System
  • Understanding Address Spaces in OS/161

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