62fb233eb1
Kernel: DeviceManager is now a 'FileSystem' so it can expose devices
...
Shell reads keyboard through /dev/input :)
2023-03-29 11:50:46 +03:00
16d9d29971
Kernel: Remove obsolete KeyboardLayout/
...
This was used by the old input system. Currently keyboard layout is
hardcoded to finnish. But it will be reworked as something read from
the filesystem
2023-03-29 03:09:14 +03:00
fa8e921ee8
Kernel: Rework the whole input system
...
We now use Device abstraction that will allow us to provide devices
to userspace through /dev. Currently Shell reads from first and only
device (it being PS/2 Keyboard).
2023-03-29 03:05:16 +03:00
c7286396d8
Kernel: Move ACPI to its own file
2023-03-27 17:30:45 +03:00
666051fd34
Kernel/BAN: move unix time conversion to BAN and add stat to Shell
2023-03-27 00:49:58 +03:00
e55860eb6b
Kernel: Rework processes and VFS so we don't expose inodes
...
Everything is now done through a file descriptor.
2023-03-26 04:30:57 +03:00
1fade1aa9e
Kernel: Process::working_directory() is now thread safe
...
I realized you cannot return a stirng view and it to be thread safe
2023-03-24 01:46:25 +02:00
814f0b215d
Kernel: Create RecursiveSpinLock and add it to Process
...
We now lock every function within Proccess, just to be sure.
Recursive lock allows us to use lock from the same thread even if
we already have the spinlock locked
2023-03-24 01:32:35 +02:00
5fd26b4ea8
Kernel: Lock process functions instead of the ata controller
...
Process has to use locks at least on some functions so multithreaded
disk io is safe. This seemed to fix corrupted reads from disk
2023-03-24 01:17:39 +02:00
e5eab8bae4
Kernel: Ext2FS now does allocations better
...
We only have to allocate at the beginning of the all functions and
can properly exit before any disk reads if we run out of memory.
This makes development little bit 'harder' since the {read,write}_block
user must allocate a buffer of atleast block_size bytes.
I also made disk access to cause kernel panic on error since the error
handling during file write is something I don't want to think now.
The filesystem can easily corrupt so, I feel like when disk io starts
to fail I'll come back to this.
2023-03-23 23:22:31 +02:00
75c4f35e85
Kernel: Add possibiliity to create empty files on Ext2
...
Big rewrite for Ext2 for more easy and optimized code
2023-03-23 22:26:06 +02:00
633414bd20
Kernel: Remove block group descriptor cache from ext2fs
...
This will make improving the fs easier since we need to only update
the values on the disk
2023-03-23 18:52:58 +02:00
7ca6cd61be
Kernel: Move get_unix_time to RTC namespace
2023-03-23 18:14:51 +02:00
3ef72e8a7b
BAN: Modify Span constructors to keep constness correctly
2023-03-23 14:26:03 +02:00
9b56801c3d
Kernel: StorageDevice and Ext2 "support" writing
2023-03-23 13:04:13 +02:00
74949401bd
Kernel: Cleanup GPT parsing code
2023-03-23 11:13:14 +02:00
072954480d
Kernel: Remove obsolete Ext2FS::ext2_root_inode()
...
This was not used by anyone and the cast was wrong anyway
2023-03-21 18:19:48 +02:00
3652d11059
Kernel: Remove for_each_block from Ext2
2023-03-21 18:14:02 +02:00
f9ae1f0023
Kernel: Fix PC Screen font parsing
...
I had misread the format and the parsing code was incorrect. I also
changed fonts to store unicode codepoints as 32 bit integers, so
every character can be represented
2023-03-20 14:52:42 +02:00
896b4c280c
Kernel: Font parsing uses Spans now
2023-03-20 13:35:54 +02:00
e4bcd98904
Kernel: Add basic mounting to VFS.
2023-03-19 05:51:25 +02:00
3570764448
Kernel: Add comparison operator for inodes
2023-03-19 03:34:23 +02:00
8236598f9d
Kernel: Optimize Ext2 disk reads
...
We used to read whole file until we reached the asked offset.
Now we can calculate the appropriate block and read just the asked data.
2023-03-18 03:47:59 +02:00
1a26a318a4
Kernel: Rework filesystem reading
...
We now read from a filesystem to user provided buffer.
Read sizes are determined by read call.
You should now get file descriptors and do reading through Process::current()
2023-03-17 21:18:41 +02:00
1f2ceeb329
Kernel: VFS caches currently open inodes
2023-03-16 15:31:33 +02:00
1b7625581d
Kernel: Add basic concept of Processes
...
We now create Shell as a process that has its own threads
2023-03-16 12:17:04 +02:00
8b8e3cbbf0
Kernel/Userspace: Start initial work on userspace and syscalls
2023-03-13 15:32:46 +02:00
af854ec9e1
Kernel: Thread creation now takes void(*)() as entry and void* as data
...
This simplifies threading for the future and gets rid of (undefined?)
cast of member function pointer to address
2023-03-09 15:33:42 +02:00
8940ff8002
Kernel: You don't have to check whether VFS is initialized or not
...
VFS now returns Error when attempting to traverse inodes if it did
not find root partition
2023-03-09 02:31:24 +02:00
371dfe8ef3
BAN: Formatter now uses perfect forwarding on its arguments
2023-03-08 21:31:26 +02:00
7458f68c38
BAN: Error can now be constructed from c_string or format string
...
If the resulting string would overflow, we just truncate it to fit
the error message buffer (128) bytes
2023-03-08 17:05:37 +02:00
d90aba0963
Kernel: Create CriticalScope and fix kmalloc
...
This disables interrupts for the current scope and restores them
after the scope. This is used in kmalloc, since scheduler might
call into kmalloc/kfree, but deadlock if some thread is currently
trying to allocate. This allows us to use kmalloc in Scheduler.
2023-03-08 13:55:53 +02:00
a068d828fe
Kernel: ATA reads go through the ata controller and not only device
2023-03-08 03:26:25 +02:00
1dabe7a222
Kernel: More rework on Scheduler
2023-03-08 03:26:25 +02:00
e7a577f54a
Kernel: fix includes
2023-03-08 03:26:25 +02:00
23b3028e15
Kernel: Rename RefCounted -> RefPtr and implement RefCounted
2023-03-08 03:26:25 +02:00
f7ebda3bf1
Kernel: Move interrupt related functions to InterruptController
2023-03-08 03:16:51 +02:00
b8ee77eb78
Kernel: Initial work on new scheduler with queues
...
Sleeping is definately broken
2023-03-08 02:41:44 +02:00
a9acf1f6dc
Kernel: PCIDevice is now class with getters and constructor
2023-03-08 02:41:44 +02:00
1dd61e93b6
Kernel: Threads cannot take arguments anymore
2023-03-02 01:56:09 +02:00
7fcbb869e1
Kernel: Initialize GDT in kernel code
...
We dont use the boot GDT only while booting
2023-03-01 21:21:56 +02:00
ba8c4dbc7f
Kernel: panic now disables interrupts as the first thing
2023-03-01 21:21:56 +02:00
9756de02ef
Kernel: MMU now takes flags when allocating pages
2023-03-01 21:21:56 +02:00
7d84f290a1
Kernel: Add lock to Disk reads before I forget
2023-02-26 03:48:11 +02:00
ee5d02aa70
Kernel: Rewrite basically all current disk io stuff
...
This is a big commit that was kinda hard to split to smaller ones.
Essentially we now look at all the mass storage devices from PCI
and initialize (P)ATA devices. This doesn't provide any more functionality
but better abstractions and everything doesn't have to be on its old
default port that might be different for modern computers.
2023-02-26 03:00:29 +02:00
04bb08d27f
Kernel: Add basic PCI enumeration
2023-02-26 02:56:53 +02:00
34f9912a1d
Kernel: Add IO functions inl, outl, and ins{b,w,l} to read into buffer
2023-02-24 12:39:38 +02:00
390a747768
Kernel: Add prefs font for terminal output before file system
2023-02-23 01:22:50 +02:00
a4980acc88
Kernel: Fonts can now be parsed from the filesystem and set to terminal
...
We currently dont have a fallback font if we cannot get to filesystem
initialization, but that will come later. I can't test on real hardware
for this reason.
2023-02-22 22:29:31 +02:00
0e668738dc
Kernel: Make some basic bitmap font parsing code
2023-02-22 22:28:12 +02:00
d9c05b7378
Kernel: rewrite the whole kmalloc (again)
...
Performance of the old kmalloc implementation was terrible.
We now use fixed-width linked list allocations for sizes <= 60 bytes.
This is much faster than variable size allocation.
We don't use bitmap scanning anymore since it was probably the slow
part. Instead we use headers that tell allocations size and aligment.
I removed the kmalloc_eternal, even though it was very fast, there is
not really any need for it, since the only place it was used in was IDT.
These changes allowed my psf (font) parsing to go from ~500 ms to ~20 ms.
(coming soon :D)
2023-02-22 16:32:50 +02:00
5d31e89574
Kernel: Update ErrorOr API and add path find to VFS
...
These two are done on the same commit since Changes to Shell were
annoying to make work with only one change
2023-02-22 01:23:11 +02:00
038379274e
Kernel: Inode can now return full mode value
...
Kernel::Inode::Mode is an union of bitmasked fields for every
possible bit
2023-02-20 21:39:24 +02:00
efaca469ee
Kernel: Ext2Inode now supports indirect blocks through for_each_block()
2023-02-20 10:25:15 +02:00
80006ea137
Kernel: Initial work on filesystem
...
We support now ext2 directory listing. File reading is not yet supported.
2023-02-20 01:46:00 +02:00
247f03c79e
BAN: Make ErrorOr<> have attribute [[nodiscard]]
...
We don't have to specify it everytime we make function return ErrorOr
2023-02-19 20:10:30 +02:00
feaeee11e5
Kernel: fix ARCH() macro and add helper macros for push/pop
2023-02-19 18:52:25 +02:00
1bd8b0fe5c
Kernel: Sleep now actually sleeps and allows idling
2023-02-19 18:52:25 +02:00
8f1b6da2af
Kernel: Use Vector instead of raw poiters in Disk stuff
...
We now don't have to manually free allocated data
2023-02-16 20:48:41 +02:00
460fc3a29f
Kernel: Start working on filesystem
...
We have a basic PATA driver (for reading) and gpt parser.
2023-02-16 20:00:31 +02:00
94cbacc998
Kernel: PIT now has very barebones sleep
2023-02-16 17:53:25 +02:00
6a133782ed
All: Move to c++20
2023-02-09 23:05:26 +02:00
fb7fe73d49
Kernel: Add inw and outw to IO
2023-02-04 23:37:34 +02:00
5b5e620d8a
Kernel: Improve multithreading support
...
We can now use arbitary BAN::function<void(...)> as the Thread.
I also implemented multithreading for i386 since it was not done
on the initial multithreading commit.
2023-02-02 23:24:12 +02:00
777ede328e
Kernel: Add helper functions for reading current rsp and rbp
2023-02-02 23:19:44 +02:00
117d1de038
Kernel: panic does not need to include <kernel/kprint.h>
...
This allows us to not have kprint available literally everywhere
2023-02-02 15:51:15 +02:00
f6b05212e0
Kernel: Add is_locked() to spinlock
...
I think this is atomic read
2023-02-02 15:49:30 +02:00
9b8de5025a
All: rename every function from UpperCamelCase to snake_case
...
This was a mess since I didn't know which to use but now I decided
to go with snake_case :)
2023-02-01 21:05:44 +02:00
6a9d60a8fb
Kernel: Implement somewhat functioning multithread support
...
This still uses only a single cpu, but we can now have 'parallelization'
This seems to work fine in qemu and bochs, but my own computer did not
like this when I last tried.
I have absolutely no idea how multithreading should actually be
implmemented and I just thought and implemented the most simple one I
could think of. This might not be in any way correct :D
2023-02-01 01:53:35 +02:00
7d8aafa0b5
Kernel: Add macros for current archutecture
2023-02-01 01:52:52 +02:00
337569b0ca
Kernel: Implement basic SpinLock
2023-02-01 01:52:52 +02:00
1687028ed5
Kernel: Add constructor and destructor to MMU
2023-01-30 18:54:04 +02:00
6dc22b7251
Kernel: Add actual register values to x86_64 kernel panic
...
Very hackish implementation, but we now get actual registers at the
time of the interrupt happening
2023-01-30 18:52:38 +02:00
aa0757e135
Kernel: Move dump_stacktrace from panic -> debug
2023-01-26 02:57:14 +02:00
e87026f01d
Kernel: I have no idea what this commit does
...
I had committed a change in IDT but reverted it now.
This propably only adds a spurious interrupt detection to common cpp
interrupt handler?
2023-01-26 02:55:37 +02:00
c0bc002ac6
Kernel: Move debug printing to its own file
...
It didn't make sense that dprint was defined in Serial.h.
We also now dump dprint to tty if there is no serial and tty is initialized
2023-01-25 22:51:42 +02:00
ba53582f23
Kernel: Rewrite APIC and PIC more OOP friendly
...
x86_64 port is slowly coming together
2023-01-23 20:13:57 +02:00
b50bb03ed4
Kernel: Panic now halts machine even if we get spurious irqs
2023-01-23 18:25:48 +02:00
1b9f7aa815
Kernel: Rewrite the whole VESA driver
...
We dont support vga text mode currently. I might add it later if needed.
I also removed mouse 'support' from Shell since it didn't do anything
and I didn't implement arbitary bitmap rendering to framebuffer
2023-01-23 13:21:53 +02:00
cdd27ae3db
Kernel: rename MMU::m_page_directory_pointer_table -> m_highest_paging_stuct
...
This might not always be pdpt. In x86_64 it is pml4/pml5
2023-01-22 03:03:58 +02:00
491610db2c
Kernel: move GDT initialization to boot.S
2023-01-22 00:48:12 +02:00
bb051604a1
Kernel: Move dump_stacktrace() to arch folder
...
It uses mov instruction which has different register on x86/x86-64
2023-01-21 22:16:31 +02:00
b9a4530e54
Kernel: Kernel::Panic now dumps stacktrace to com1
2023-01-16 21:50:50 +02:00
7540fa0385
Kernel: Shell now 'properly' parses commandline
2023-01-16 20:09:22 +02:00
e307db47eb
Kernel: Kernel::Panic() will now always print to serial output
2023-01-16 15:44:27 +02:00
46e5b3f3d6
Kernel: Move GDT to its own namespace and cleanup
2023-01-16 15:24:10 +02:00
8881c1e117
Kernel: Shell is no longer singleton
2023-01-16 15:16:39 +02:00
1545850be3
Kernel: Input callbacks use the new BAN::Function
2023-01-16 15:15:02 +02:00
d5e162b1ea
Kernel: fix kmalloc header
2023-01-16 12:10:50 +02:00
f547a788f2
Kernel: Add support for arrow keys in Shell
2023-01-13 15:07:24 +02:00
416a41745f
Kernel: Kernel::Panic now checks that TTY is initialized instead of VESA
2023-01-13 15:04:06 +02:00
7f01eaa936
Kernel: Move CPUID feature strings to cpp file
2023-01-13 00:03:37 +02:00
301ad89783
Kernel: Unallocate RSDT after we are done with it
2023-01-12 13:45:01 +02:00
33a4fcc662
Kernel: Add helper macro for bochs magic break point
2023-01-12 13:24:41 +02:00
8fd51fb47d
Kernel: Replace Paging{.h,.cpp} with better MMU{.h,.cpp}
2023-01-12 13:24:36 +02:00
64c57ea3d0
Kernel: Remove obsole CPUID::IsAvailable
...
This is now a harware requirement that is verified already in boot.S
2023-01-10 21:28:59 +02:00
7d45b3cbd6
Kernel: Rewrote kmalloc to be much simpler and allow alignment
2023-01-10 21:10:36 +02:00
d89b6aa9ce
Kernel: Serial output now gives clickable links
2023-01-10 21:09:59 +02:00
85068e27d6
BAN: BAN/Memory.h now provides the operator new and delete
2023-01-10 17:51:33 +02:00
c6467b8ebc
Kernel: Multiboot data and kernel command lines are now global variables
2023-01-10 17:50:24 +02:00
Bananymous