650570e57d
Kernel: Fix comment
2023-05-31 00:51:15 +03:00
1f5a36f074
Kernel: PageTable destructor works now
...
we are successfully booting higher half kernel now :)
2023-05-31 00:44:14 +03:00
aeaf2cd3f1
Kernel: PageTable::create_userspace() now works
2023-05-31 00:44:14 +03:00
959c0fc572
Kernel: kmalloc free error prints the pointer
2023-05-31 00:34:56 +03:00
e3d3788f28
Kernel: RSDP location is now done with virtual addresses
2023-05-31 00:34:21 +03:00
850b7f27a2
Kernel: Physical range now calculates RAM with physical addresses
2023-05-31 00:33:44 +03:00
0939f23b04
Kernel: Heap gets multiboot pointer with P2V
2023-05-30 23:57:44 +03:00
67886b0c5a
Kernel: Move V2P and P2V to Memory/Types.h
2023-05-30 23:57:03 +03:00
56eb6fb4ce
Kernel: PageTable::map_range_at maps correctly the last page
2023-05-30 23:56:07 +03:00
81cf389754
Kernel: Booting with higher half kernel gets to Heap initialization
2023-05-30 22:21:12 +03:00
0907965dc5
Kernel: start work on higher half kernel
2023-05-30 08:00:17 +03:00
210d90ec79
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
8bea18a6f2
Kernel: Remove unused includes of CriticalScope
2023-05-29 21:15:55 +03:00
861966eed6
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
5bb1f2a48c
Kernel: Rename MMU to PageTable
...
This is more descriptive name for what it actually represents
2023-05-29 21:06:09 +03:00
fb17af4844
Kernel/LibC: opening standard files is done in libc
2023-05-29 20:21:19 +03:00
b8ec8918b7
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
ff83f967d8
Kernel: Make RecursiveSpinLock thread safe
...
also SpinLock is now implemented with gcc builtins
2023-05-29 19:38:09 +03:00
998999a755
Kernel: Add SYS_SLEEP
2023-05-28 22:34:48 +03:00
09666adc53
Kernel: fork() now copies allocations through FixedWidthAllocator
2023-05-28 21:34:35 +03:00
ec73db0057
Kernel: Move page macros to Types.h
2023-05-28 21:03:08 +03:00
833642d405
Kernel: ISR will now crash userspace process instead of panicing kernel
2023-05-28 20:53:10 +03:00
f04399c3a0
Kernel: fork() now copies allocation done through GeneralAllocator
2023-05-28 20:37:39 +03:00
f2d767b799
Kernel: Add bareboness fork() function
2023-05-28 18:08:49 +03:00
3e93dae53c
Kernel: Add invalidate() to MMU
2023-05-28 18:05:49 +03:00
187bb046aa
Kernel: fix MMU::map_page_at()
...
We used to only reassign if flags changed
2023-05-28 17:57:05 +03:00
b021d3eebd
Kernel: Processes and Threads use VirtualRange memory allocations
2023-05-28 17:48:34 +03:00
15842db83e
Kernel: Move PhysicalRange to its own file and add VirtualRange
2023-05-28 17:48:34 +03:00
869de7283f
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
eb24d32383
Kernel: Directory listing is working again
2023-05-26 22:31:21 +03:00
565e3db22d
Kernel: kmalloc debug_dump is marked [[maybe_unused]]
2023-05-26 22:31:21 +03:00
faf14b880e
LibC: Rewrite all the headers.
...
We now have more or less posix issue 2018 conforming libc headers.
This was a really time consuming and boring operation but it had to
be done.
Now we get to actually start implementing libc :)
2023-05-26 22:31:21 +03:00
27147790fd
Userspace: Start work on shell
2023-05-26 22:31:21 +03:00
1658e925f2
Kernel: Add bareboness possibility to set termios
2023-05-26 22:31:21 +03:00
80d9f6131b
Kernel/LibC: move file offset back to kernel
...
This makes keeping track of offsets easier and more proper
2023-05-26 22:31:21 +03:00
e0a72defa2
Kernel: Add argc and argv to process entry
2023-05-16 00:27:49 +03:00
e0a7e242f8
Kernel: Add MMUScope
...
This disables interrupts and loads specified mmu for the
scope it lives in
2023-05-16 00:26:39 +03:00
6acb86c14b
Kernel: MMU keeps track of the current
2023-05-16 00:26:39 +03:00
ec316391c5
Kernel: argc is passed as zero to userspace
2023-05-11 18:28:32 +03:00
177b205c48
BuildSystem: userspace has cmake target
2023-05-11 16:19:53 +03:00
729ff267d7
LibC: add function declarations to sys/stat.h
2023-05-11 15:11:33 +03:00
ff2e2937a5
Kernel: Remove offset from OpenFileDescriptor
...
This is now handled on the libc side. There might be reasons to
have it in kernel side, but for simplicity's sake I'm moving it
to libc for now :)
2023-05-09 20:31:22 +03:00
512be884ed
Kernel: Add barebones GeneralAllocator for >4096B
2023-05-08 22:10:49 +03:00
f1667b398a
Kernel: FixedWidthAllocator operates on MMU
...
Instead of Process* we use MMU& in FixedWidthAllocator since it is
everything it actually needs :)
2023-05-08 00:06:56 +03:00
b0ec0f1a1a
Kernel: We add FixedWidthAllocators on demand
...
On SYS_ALLOC we will add a new FixedWidthAllocator if the old ones
are already full or we don't have one with proper size. This allows
arbitary number of allocations as long as you have enough memory
available :)
Next I will be writing a general allocator for allocations larger
than 4096 bytes which should make SYS_ALLOC syscall complete :)
2023-05-07 23:57:01 +03:00
12e42f40c5
Kernel/LibC: add free function for FixedWidthAllocator
...
I have to rework the syscall API and allocators in process. For
now this works well enough :)
2023-05-07 01:21:50 +03:00
890aa9aa15
BuildSystem: linker -O2 doesn't do anything? hopefully
2023-05-06 19:58:08 +03:00
bcfd838131
Kernel: Add basic fixed width allocator for userspace
...
We have to move process stacks to the general heap and maybe map
kernel to higher half.
2023-05-06 19:58:08 +03:00
9c07add00f
Kernel: Invalid physical addresses from heap are specified now by 0
2023-05-06 17:34:22 +03:00
ab8aac7dcf
Kernel: GDT tss selector is now 16 bit value
2023-05-06 17:34:22 +03:00
