sBubshait
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941e1e067a
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Update SPT page entry to change type from EXECUTABLE to PAGE_FILE to capture mmaps in addition to executables
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2024-12-04 17:51:30 +00:00 |
|
sBubshait
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ad6e4b4059
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Implement syscall_mmap to validate and then map all file data into a user address in memory
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2024-12-04 17:42:53 +00:00 |
|
sBubshait
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72fa0c1bbb
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Fix Bug: Initialise the mmap table for the newly created thread rather than the current thread
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2024-12-04 17:41:14 +00:00 |
|
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 |
|
sBubshait
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67f16cb2a6
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Update syscall.c to allow mmap and unmap system calls through helper handler functions for each
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2024-12-04 15:31:53 +00:00 |
|
sBubshait
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6b0f708d8f
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Update mmap to add an insert helper function to allocate and add new mmap entries to the hash table
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2024-12-04 15:26:00 +00:00 |
|
sBubshait
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6e838aa06a
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Fix Bug in thread.c: Only initialise and destroy mmap files table if VM is defined
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2024-12-04 15:24:11 +00:00 |
|
sBubshait
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a2f46f3b72
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Add a mmap destroy function to cleanup all mmap hash table entries upon thread exit
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2024-12-04 15:14:02 +00:00 |
|
sBubshait
|
1ce09a49a1
|
Add helper functions to initialise the memory-mapped files table and counter
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2024-12-04 15:08:43 +00:00 |
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Themis Demetriades
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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 |
|
sBubshait
|
b3042b5aa6
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Update thread structure to add mmap files table and a counter for mappings of the thread
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2024-12-04 14:56:52 +00:00 |
|
sBubshait
|
85aabd86cd
|
Update gitlab ci file to include mmap tests in the automated testing pipeline
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2024-12-04 14:55:28 +00:00 |
|
sBubshait
|
acc768e177
|
Add mmap module in vm defining mmap_entry structure and some helper functions
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2024-12-04 13:01:01 +00:00 |
|
Themis Demetriades
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47a7dfae04
|
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
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fix: grow stack upon page fault in kernel context to support syscall stack growth
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2024-12-03 20:56:10 +00:00 |
|
Themis Demetriades
|
08eafcf7ef
|
feat: implement page swapping
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2024-12-03 16:53:47 +00:00 |
|
Themis Demetriades
|
df7d847978
|
fix: remove stack fault checks for page faults outside user non-present addresses
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2024-12-02 21:07:17 +00:00 |
|
Demetriades, Themis
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fbcd3c9f19
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ci: include dynamic stack growth tests in VM test pipeline
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2024-12-02 20:57:05 +00:00 |
|
Themis Demetriades
|
6190d1bee6
|
fix: disable dynamic stack growth when VM flag is disabled
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2024-12-02 20:44:54 +00:00 |
|
Themis Demetriades
|
6adf2e743b
|
refactor: dynamic stack growth functions to follow code style
|
2024-12-02 19:50:40 +00:00 |
|
Themis Demetriades
|
05a48cf9c6
|
refactor: page fault exception handler follows code style
|
2024-12-01 23:36:55 +00:00 |
|
Themis Demetriades
|
bb16abdc0d
|
refactor: supplemental page table helper functions follow code style
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2024-12-01 23:30:50 +00:00 |
|
Demetriades, Themis
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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
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2024-12-01 21:47:30 +00:00 |
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Demetriades, Themis
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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 |
|
EDiasAlberto
|
94adc11f03
|
Feat: implement page_get_swap and page_set_swap functions
|
2024-11-30 03:21:34 +00:00 |
|
EDiasAlberto
|
40c553d68b
|
Merge stack growth functions
|
2024-11-30 01:54:28 +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 |
|
sBubshait
|
14fc96febf
|
Implement Supplemental Page Table (SPT) per thread along with structure for its entries, w/ G
|
2024-11-28 17:54:15 +00:00 |
|
EDiasAlberto
|
4f84a83611
|
Refactor: abstract new page allocation to one general function and make helper functions static
|
2024-11-27 19:41:22 +00:00 |
|
EDiasAlberto
|
c74a8c55aa
|
Implement stack growth for system calls and add stack pointer tracking to thread
|
2024-11-27 19:21:43 +00:00 |
|
EDiasAlberto
|
c670c29e47
|
update stack growth header to fit virtual memory naming format
|
2024-11-27 18:57:20 +00:00 |
|
Themis Demetriades
|
1e6b90da0d
|
Implement skeleton for swapping frames into disk
|
2024-11-26 18:59:46 +00:00 |
|
Themis Demetriades
|
ea2725f606
|
feat: implement frame table without thread safety
|
2024-11-26 15:17:11 +00:00 |
|
EDiasAlberto
|
af7f2ba873
|
Fix: Magic number in stackgrowth.c
|
2024-11-26 04:54:00 +00:00 |
|