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471 Commits

Author SHA1 Message Date
Bananymous dc1aff58ed Kernel: PAGE_FLAG_MASK is now only 0xF 
We don't care currenly about anything but the last few bits
 2023-06-03 20:08:13 +03:00
Bananymous 9f75d9cfe5 Kernel: PageTable now has debug_dump 
This dumps all the mapped pages and their flags
 2023-06-03 20:08:13 +03:00
Bananymous a42af7e973 Kernel: boot.S is back to 2 MiB pages 
bochs doesn't seem to support 1 GiB pages
 2023-06-03 18:53:36 +03:00
Bananymous a4cb5d8360 Kernel: Inode/Device detection is done with overridden bool functions 2023-06-03 13:28:15 +03:00
Bananymous da7f09cf82 Kernel: Heap will return 0 if no free page is available 2023-06-03 02:55:31 +03:00
Bananymous 0166af472b Kernel: DiskCache will try to shrink_to_fit after cache cleanup 2023-06-03 02:55:22 +03:00
Bananymous 884d986bd6 Kernel: DiskCache won't crash when running out of kmalloc memory 2023-06-03 02:36:20 +03:00
Bananymous 59b807189f Kernel: add basic disk cache 
ATADevices now add disk cache to themselves
 2023-06-03 02:23:14 +03:00
Bananymous fb1c7015b1 Kernel: Shell 'memory' now prints heap memory usage 2023-06-03 02:22:18 +03:00
Bananymous 9bd4d68f9c Kernel: Shell ls and stat now properly show symlinks 2023-06-02 18:22:56 +03:00
Bananymous 633cb4f282 Kernel: VFS now has max link depth of 100 2023-06-02 12:50:40 +03:00
Bananymous 4d4d0e26a9 Kernel: Symlinks are now working 
We still have to implement loop or depth detection
 2023-06-02 11:43:46 +03:00
Bananymous 0ffd2a5c1d Kernel: Shell can now list symlinks 2023-06-01 00:25:53 +03:00
Bananymous 232fdcb82c Kernel: add basic support for symlinks 2023-06-01 00:24:45 +03:00
Bananymous 0ccc23d544 Kernel: Shell opens standard files 2023-05-31 23:14:15 +03:00
Bananymous 02f0239016 Kernel: Cleanup exec code 2023-05-31 22:36:05 +03:00
Bananymous ab61b49aca Kernel: Add SYS_EXEC syscall 2023-05-31 20:57:33 +03:00
Bananymous 4da1d6fd27 Kernel: Implement Process::exec() 2023-05-31 20:56:29 +03:00
Bananymous 909e847369 Kernel: Move userspace entry functions to Process instead of Thread 2023-05-31 19:31:10 +03:00
Bananymous eafa09fecf Kernel: boot.S maps GiB as single pdpte 2023-05-31 00:51:15 +03:00
Bananymous 8175348284 Kernel: Fix comment 2023-05-31 00:51:15 +03:00
Bananymous b2832cb47a Kernel: PageTable destructor works now 
we are successfully booting higher half kernel now :)
 2023-05-31 00:44:14 +03:00
Bananymous 9f499991c8 Kernel: PageTable::create_userspace() now works 2023-05-31 00:44:14 +03:00
Bananymous 9a416e8ae8 Kernel: kmalloc free error prints the pointer 2023-05-31 00:34:56 +03:00
Bananymous 911922c6a3 Kernel: RSDP location is now done with virtual addresses 2023-05-31 00:34:21 +03:00
Bananymous 1f2fd59ad5 Kernel: Physical range now calculates RAM with physical addresses 2023-05-31 00:33:44 +03:00
Bananymous 708d401d2c Kernel: Heap gets multiboot pointer with P2V 2023-05-30 23:57:44 +03:00
Bananymous ed0dcacab3 Kernel: Move V2P and P2V to Memory/Types.h 2023-05-30 23:57:03 +03:00
Bananymous e86050f343 Kernel: PageTable::map_range_at maps correctly the last page 2023-05-30 23:56:07 +03:00
Bananymous 57f7da6ce1 Kernel: Booting with higher half kernel gets to Heap initialization 2023-05-30 22:21:12 +03:00
Bananymous 93e6455171 Kernel: start work on higher half kernel 2023-05-30 08:00:17 +03:00
Bananymous 265fe9c62e Kernel: We now identity map full GiB in boot.S 
The paging structure is pre-built so no unnecessary calculations are done
 2023-05-30 00:08:52 +03:00
Bananymous 3b9d60d7cb Kernel: Remove unused includes of CriticalScope 2023-05-29 21:15:55 +03:00
Bananymous 278b873e89 Kernel: Remove unnecessary usages of PageTableScope 
This should be used as few times as possible since it calls 'cli'
 2023-05-29 21:11:29 +03:00
Bananymous e640344d7a Kernel: Rename MMU to PageTable 
This is more descriptive name for what it actually represents
 2023-05-29 21:06:09 +03:00
Bananymous 7151bb86a8 Kernel/LibC: opening standard files is done in libc 2023-05-29 20:21:19 +03:00
Bananymous 3d95cf02f3 Kernel: We can't lock the MMU lock in load() 
It needs to be callable always by scheduler
 2023-05-29 19:39:35 +03:00
Bananymous dd3f34cb2c Kernel: Make RecursiveSpinLock thread safe 
also SpinLock is now implemented with gcc builtins
 2023-05-29 19:38:09 +03:00
Bananymous 0c316ebfb2 Kernel: Add SYS_SLEEP 2023-05-28 22:34:48 +03:00
Bananymous 282bf24f65 Kernel: fork() now copies allocations through FixedWidthAllocator 2023-05-28 21:34:35 +03:00
Bananymous f964f6be8d Kernel: Move page macros to Types.h 2023-05-28 21:03:08 +03:00
Bananymous 0202ccec5f Kernel: ISR will now crash userspace process instead of panicing kernel 2023-05-28 20:53:10 +03:00
Bananymous 636c308993 Kernel: fork() now copies allocation done through GeneralAllocator 2023-05-28 20:37:39 +03:00
Bananymous 6fdbe6f9c2 Kernel: Add bareboness fork() function 2023-05-28 18:08:49 +03:00
Bananymous c19f4c019a Kernel: Add invalidate() to MMU 2023-05-28 18:05:49 +03:00
Bananymous 83eb3dc0cb Kernel: fix MMU::map_page_at() 
We used to only reassign if flags changed
 2023-05-28 17:57:05 +03:00
Bananymous 0129619d9a Kernel: Processes and Threads use VirtualRange memory allocations 2023-05-28 17:48:34 +03:00
Bananymous e0479b291d Kernel: Move PhysicalRange to its own file and add VirtualRange 2023-05-28 17:48:34 +03:00
Bananymous b847d7dfd5 Kernel: MMU::get() is now MMU::kernel 
MMU is can now be locked with RecursiveSpinLock.

Scheduler now has get_current_tid() that works before the Scheduler
is initialized. This allows RecursiveSpinLock usage early on.
 2023-05-28 16:18:18 +03:00
Bananymous fed690a7f2 Kernel: Directory listing is working again 2023-05-26 22:31:21 +03:00