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258 Commits

Author SHA1 Message Date
Zhang Junyang
14e1b1a9fc Rename various concepts related to memory management 2024-06-03 22:16:02 +08:00
Zhang Junyang
03a39c94ca Refactor the representation of page metadata 2024-06-03 22:16:02 +08:00
Zhang Junyang
39aa31a69d Remove the VmIO implementation of VmSpace 2024-06-03 22:16:02 +08:00
Zhang Junyang
141fbeaf0c Optimize the page table implementation using the frame metadata 
This PR also refactored the page table cursor, distinguishing `Cursor` from `CursorMut`, and split
a lot of functions to reduce dynamic condition checking.

There are also other sanitizations performed, including refactoring PTE's `is_huge` API to `is_last`,
hardening tracked mapping checks, and making `VmFrame` any size.
 2024-06-03 22:16:02 +08:00
Zhang Junyang
69d464fc6b Use metadata to track VmFrames 
In this commit, the frame metadata storage schema is implemented. The bootstrap process is refactored
and a boot page table is introduced to perform early stage metadata mapping. The metadata is then used
to track `VmFrame`s instead of the former `Arc` approach.
 2024-06-03 22:16:02 +08:00
Chen Chengjun
c84efe7a90 Introduce CPU clock and CPU timer 2024-06-03 20:03:46 +08:00
Chen Chengjun
f1c1011f2b Set PROCESSOR cpu-local 2024-06-03 20:03:46 +08:00
Ruihan Li
0bafc0f18a Add unit tests for WaitQueue and Waiter 2024-06-03 15:45:56 +08:00
Ruihan Li
a664f1a9fc Revise the public APIs of WaitQueue 2024-06-03 15:45:56 +08:00
anbo
140640c5d6 Modify CR3 solely during context switching 2024-06-03 15:37:11 +08:00
jellllly420
e1480f94ee fix: enable timely delivery of POSIX signals while busy-looping 2024-06-01 20:08:11 +08:00
Fabing Li
34e9d71fe4 Add condition variable implementation 2024-05-31 20:25:31 +08:00
mag1cian
6e9516daa4 Fix 'early_println' with no arguments 2024-05-31 16:09:53 +08:00
Chen Chengjun
558248a070 Enable softirq mechanism 2024-05-31 16:05:58 +08:00
Chen Chengjun
c02eacd50c Use deny(unsafe_code) instead of forbid(unsafe_code) 2024-05-31 16:05:58 +08:00
YanWQ-monad
fa7d0a787f Extract x86-specific trap handler code 2024-05-31 11:41:02 +08:00
Ruihan Li
28b66c1c8c Avoid creating linear mappings with the SHARED flag set 2024-05-30 20:45:59 +08:00
Zhang Junyang
56a4909211 Revert fast_copy and fast_copy_nonoverlapping in the framework 
This reverts commit 657d6719c7e28cbfba459c7b5fef305d95e21e0e.
 2024-05-28 22:35:25 +08:00
YanWQ-monad
2636bb0838 Extract x86-specific TaskContext 2024-05-24 16:57:35 +08:00
Ruihan Li
69abc09f5a Add missing TLB flushes to VmSpace 2024-05-23 10:34:58 +08:00
Ruihan Li
83b88229a3 Unify headers of safety comments 2024-05-22 13:21:16 +08:00
Jianfeng Jiang
07fbbcfd8c Add syscall clone3 2024-05-21 19:22:13 +08:00
YanWQ-monad
a5707b4ddc Extract OS-specific part from UserContextApi 2024-05-21 09:53:37 +08:00
LI Qing
657d6719c7 Add the fast_copy and fast_copy_nonoverlapping in frame 2024-05-21 09:48:43 +08:00
Chen Chengjun
2002db5481 Add wait_until_or_cancelled API to WaitQueue 2024-05-20 16:09:27 +08:00
Chen Chengjun
91152bceed Add a small patch to CpuLocal 2024-05-20 16:09:27 +08:00
Chen Chengjun
b226928349 Remove the timer module from the aster-frame and adjust the related code 2024-05-20 16:09:27 +08:00
Chen Chengjun
d019de29f9 Add abstractions for Clock and Timer 2024-05-20 16:09:27 +08:00
YanWQ-monad
ccc4e6ec6b Move whole kernel ELF to VMA 2024-05-15 21:31:09 +08:00
Ruihan Li
dbc234ada6 Rename cx_ptr to ctx_ptr 2024-05-14 10:00:59 +08:00
Ruihan Li
47fe10f17b Avoid poorly chosen variable names 2024-05-14 10:00:59 +08:00
Ruihan Li
a215cb54d9 Use UnsafeCell to store UserContext 2024-05-14 10:00:59 +08:00
Ruihan Li
83c2aba0b0 Use SpinLock to protect PROCESSOR 2024-05-13 19:39:50 +08:00
LI Qing
81cca42205 Refine WaitQueue with fast path to return early 2024-05-11 11:11:12 +08:00
Zhang Junyang
035e12a4bd Identify the page table free-reuse-then-read problem and feature gate it 2024-05-10 19:07:05 +08:00
Zhang Junyang
679e5dac68 Remove the VA to PA API and tidy up kernel space 2024-05-10 19:07:05 +08:00
Zhang Junyang
cf5cfb3475 Enable global page and add a global TLB flushing function 2024-05-10 19:07:05 +08:00
Zhang Junyang
989970429a Refactor the definition of page properties and permissions 2024-05-10 19:07:05 +08:00
Zhang Junyang
351e08c897 Escalate page table consts to be paging consts 2024-05-10 19:07:05 +08:00
Zhang Junyang
2dbeb92326 Implement fine grained locks for the page table and adjust APIs 2024-05-10 19:07:05 +08:00
Zhang Junyang
ef1ab72ebe Let page table own frames and remove MemorySet 2024-05-10 19:07:05 +08:00
Zhang Junyang
b6f8661abb Add unit tests for the page table 2024-05-10 19:07:05 +08:00
Zhang Junyang
82bdadf754 Add a PTE extension mechanism 2024-05-10 19:07:05 +08:00
Zhang Junyang
513ac97969 Add shortcuts for writing page table protections 2024-05-10 19:07:05 +08:00
Zhang Junyang
24a868a670 Implement an efficient ranged page table 2024-05-10 19:07:05 +08:00
Chen Chengjun
c9cfb98746 Improve the efficiency of fill method in VmWriter 2024-05-10 11:08:51 +08:00
Chuandong Li
a6055bb092 Fix a deadlock issue in ramfs 2024-05-10 11:05:41 +08:00
Zhang Junyang
d1990869ae Make ID allocator a separate crate and use it in the frame 2024-05-09 14:35:12 +08:00
LI Qing
8f3b1f8ddf Reduce some redundant usage of current! and current_thread! 2024-05-09 14:33:21 +08:00
Zhang Junyang
da5873e990 Allow implementations for dynamically borrowed RwMutex guards 2024-05-09 10:41:21 +08:00