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7f2e50a7d1
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fix: free non-shared pages that are in swap + utility functions for frame owners.
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2024-12-05 15:25:47 +00:00 |
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71d91994c1
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feat: allow frames to have multiple owner threads.
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2024-12-05 14:44:59 +00:00 |
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598189fddb
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Merge branch 'vm/page-swap-synch' into vm/shared-read-only-executables
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2024-12-05 02:12:12 +00:00 |
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Demetriades, Themis
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f06c91cf0d
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ci: include linear page tests in VM test pipeline
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2024-12-05 00:29:49 +00:00 |
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Themis Demetriades
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19d5b02341
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fix: remove use of USERPROG compiler flag specific code when the flag is disabled
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2024-12-04 23:48:51 +00:00 |
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Themis Demetriades
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0288e13206
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fix: don't discriminate between user and kernel page fault contexts for stack growth, lazy loading, and swapping
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2024-12-04 23:46:31 +00:00 |
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Themis Demetriades
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60faf995ea
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fix: lazy load executable files of user processes even when accessed in a kernel context
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2024-12-04 22:21:31 +00:00 |
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4efc9c8e3e
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feat: add sanity checks to update branch of page_insert
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2024-12-04 22:04:27 +00:00 |
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Themis Demetriades
|
723055f485
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fix: only use lazy loading if VM flag is enabled
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2024-12-04 21:33:21 +00:00 |
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Themis Demetriades
|
1e236a5c47
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Merge branch 'vm/lazy-loading' into vm/page-swap-synch
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2024-12-04 19:11:37 +00:00 |
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Themis Demetriades
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4bf6914cfa
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feat: incorporate lazy-loading data & helpers into supplemental page table
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2024-12-04 16:45:36 +00:00 |
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Themis Demetriades
|
fb73d694bf
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fix: frame allocation now invalidates the victim process page directory, not the caller's
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2024-12-04 16:41:13 +00:00 |
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Themis Demetriades
|
1b73e415d7
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fix: invalidate PTEs of evicted pages before eviction occurs to prevent modificationof pages mid-eviction
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2024-12-04 15:02:49 +00:00 |
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c0ff53beff
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feat: proper cleanup for shared pages
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2024-12-04 12:27:39 +00:00 |
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f2aba977b4
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fix: extract supplemental and shared_files initialisation
|
2024-12-04 11:17:46 +00:00 |
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10bfffc4b0
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fix: clear shared pages to avoid freeing them
|
2024-12-04 11:03:35 +00:00 |
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Themis Demetriades
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47a7dfae04
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refactor: add comments describing each type of page fault dealt by the page fault handler
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2024-12-03 21:47:59 +00:00 |
|
EDiasAlberto
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9a3c8a1c38
|
fix: grow stack upon page fault in kernel context to support syscall stack growth
|
2024-12-03 20:56:10 +00:00 |
|
Themis Demetriades
|
08eafcf7ef
|
feat: implement page swapping
|
2024-12-03 16:53:47 +00:00 |
|
Themis Demetriades
|
df7d847978
|
fix: remove stack fault checks for page faults outside user non-present addresses
|
2024-12-02 21:07:17 +00:00 |
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Demetriades, Themis
|
fbcd3c9f19
|
ci: include dynamic stack growth tests in VM test pipeline
|
2024-12-02 20:57:05 +00:00 |
|
Themis Demetriades
|
6190d1bee6
|
fix: disable dynamic stack growth when VM flag is disabled
|
2024-12-02 20:44:54 +00:00 |
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Themis Demetriades
|
6adf2e743b
|
refactor: dynamic stack growth functions to follow code style
|
2024-12-02 19:50:40 +00:00 |
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Themis Demetriades
|
05a48cf9c6
|
refactor: page fault exception handler follows code style
|
2024-12-01 23:36:55 +00:00 |
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Themis Demetriades
|
bb16abdc0d
|
refactor: supplemental page table helper functions follow code style
|
2024-12-01 23:30:50 +00:00 |
|
Demetriades, Themis
|
8e278b349a
|
Merge branch 'page-swap-helpers' into 'virtual-memory'
Implement helper functions for managing the supplemental page table
See merge request lab2425_autumn/pintos_22!55
|
2024-12-01 21:47:30 +00:00 |
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Demetriades, Themis
|
9d35beb2e4
|
Merge branch 'virtual-memory' into 'page-swap-helpers'
# Conflicts:
# src/vm/frame.c
# src/vm/page.c
|
2024-12-01 21:44:17 +00:00 |
|
Themis Demetriades
|
7ce512305e
|
fix: remove DVM flag when compiling outside of vm directory
|
2024-12-01 00:41:09 +00:00 |
|
Demetriades, Themis
|
775b73a3e9
|
Merge branch 'ethan-stack-growth' into 'virtual-memory'
Implement dynamic stack growth
See merge request lab2425_autumn/pintos_22!54
|
2024-11-30 23:21:33 +00:00 |
|
Demetriades, Themis
|
d8edc6d3fe
|
Merge branch 'virtual-memory' into 'ethan-stack-growth'
# Conflicts:
# src/Makefile.build
|
2024-11-30 23:21:16 +00:00 |
|
Demetriades, Themis
|
5682974f9d
|
Merge branch 'vm/supplemental-page-table' into 'master'
Implement frame table & page eviction algorithm
See merge request lab2425_autumn/pintos_22!53
|
2024-11-30 23:01:04 +00:00 |
|
Themis Demetriades
|
6f85d7642d
|
feat: implement clock (second-chance) page eviction algorithm
|
2024-11-30 22:40:13 +00:00 |
|
|
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6218b5e80d
|
fix: invert result of file_compare for shared_file_less
|
2024-11-30 11:49:19 +00:00 |
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EDiasAlberto
|
94adc11f03
|
Feat: implement page_get_swap and page_set_swap functions
|
2024-11-30 03:21:34 +00:00 |
|
sBubshait
|
dca773addc
|
Update Exception To Debug Shared files, w/ G
|
2024-11-30 03:00:17 +00:00 |
|
EDiasAlberto
|
40c553d68b
|
Merge stack growth functions
|
2024-11-30 01:54:28 +00:00 |
|
sBubshait
|
0b08893aaf
|
Update page_load to create and use the shared read-only pages of executables, w/ G
|
2024-11-30 01:54:10 +00:00 |
|
sBubshait
|
f4910bdefb
|
Initialised shared_files global hash table, w/ G
|
2024-11-30 01:23:33 +00:00 |
|
sBubshait
|
ba72345f96
|
Add data structures for shared executable files along with helper methods for them, w/ G
|
2024-11-30 01:15:50 +00:00 |
|
EDiasAlberto
|
13de832586
|
Refactor stack growth code to remove messy conditions
|
2024-11-29 23:52:05 +00:00 |
|
EDiasAlberto
|
5c661c2e24
|
Feat: pointer validation checks string across multiple pages and handle kernel page faults
|
2024-11-29 23:49:49 +00:00 |
|
EDiasAlberto
|
5f40d83e66
|
Implement MMU-based user memory validation
|
2024-11-29 23:03:31 +00:00 |
|
Themis Demetriades
|
149bb42889
|
feat: implement clock (second-chance) page eviction algorithm
|
2024-11-29 19:30:47 +00:00 |
|
sBubshait
|
8047c65227
|
Update syscall handling of invalid pointers by preloading pages using the helper try_fetch_page
|
2024-11-29 18:55:28 +00:00 |
|
sBubshait
|
d047a3c242
|
Update Userprog Makefile to include vm files
|
2024-11-29 18:49:26 +00:00 |
|
sBubshait
|
c8b93c57ee
|
Fix: Update writability of the last page after loading as a workaround to calculating the offset, w/ G
|
2024-11-29 15:45:44 +00:00 |
|
sBubshait
|
92d0b68243
|
Fix: Avoid closing the file after loading segments to be able to lazily load from file without opening, w/ G
|
2024-11-29 14:32:55 +00:00 |
|
sBubshait
|
801fd7d310
|
Implement page fault for lazy loading executables, w/ G
|
2024-11-28 20:03:50 +00:00 |
|
sBubshait
|
df20e0fdfe
|
Update load_segment to load only the metadata of the pages to the SPT, w/ G
|
2024-11-28 18:35:49 +00:00 |
|
sBubshait
|
97e6e0fb1e
|
Add SPT Helper Functions: Insert, Get, Cleanup w/ G
|
2024-11-28 18:18:52 +00:00 |
|
