9f75d9cfe5
Kernel: PageTable now has debug_dump
...
This dumps all the mapped pages and their flags
2023-06-03 20:08:13 +03:00
a4cb5d8360
Kernel: Inode/Device detection is done with overridden bool functions
2023-06-03 13:28:15 +03:00
59b807189f
Kernel: add basic disk cache
...
ATADevices now add disk cache to themselves
2023-06-03 02:23:14 +03:00
fb1c7015b1
Kernel: Shell 'memory' now prints heap memory usage
2023-06-03 02:22:18 +03:00
4d4d0e26a9
Kernel: Symlinks are now working
...
We still have to implement loop or depth detection
2023-06-02 11:43:46 +03:00
232fdcb82c
Kernel: add basic support for symlinks
2023-06-01 00:24:45 +03:00
4da1d6fd27
Kernel: Implement Process::exec()
2023-05-31 20:56:29 +03:00
909e847369
Kernel: Move userspace entry functions to Process instead of Thread
2023-05-31 19:31:10 +03:00
ed0dcacab3
Kernel: Move V2P and P2V to Memory/Types.h
2023-05-30 23:57:03 +03:00
57f7da6ce1
Kernel: Booting with higher half kernel gets to Heap initialization
2023-05-30 22:21:12 +03:00
e640344d7a
Kernel: Rename MMU to PageTable
...
This is more descriptive name for what it actually represents
2023-05-29 21:06:09 +03:00
7151bb86a8
Kernel/LibC: opening standard files is done in libc
2023-05-29 20:21:19 +03:00
dd3f34cb2c
Kernel: Make RecursiveSpinLock thread safe
...
also SpinLock is now implemented with gcc builtins
2023-05-29 19:38:09 +03:00
282bf24f65
Kernel: fork() now copies allocations through FixedWidthAllocator
2023-05-28 21:34:35 +03:00
f964f6be8d
Kernel: Move page macros to Types.h
2023-05-28 21:03:08 +03:00
0202ccec5f
Kernel: ISR will now crash userspace process instead of panicing kernel
2023-05-28 20:53:10 +03:00
636c308993
Kernel: fork() now copies allocation done through GeneralAllocator
2023-05-28 20:37:39 +03:00
6fdbe6f9c2
Kernel: Add bareboness fork() function
2023-05-28 18:08:49 +03:00
c19f4c019a
Kernel: Add invalidate() to MMU
2023-05-28 18:05:49 +03:00
0129619d9a
Kernel: Processes and Threads use VirtualRange memory allocations
2023-05-28 17:48:34 +03:00
e0479b291d
Kernel: Move PhysicalRange to its own file and add VirtualRange
2023-05-28 17:48:34 +03:00
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
f79250c4d4
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
9e0abbc2f0
Kernel: Add bareboness possibility to set termios
2023-05-26 22:31:21 +03:00
4a4a3bf184
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
f33e78882e
Kernel: Add argc and argv to process entry
2023-05-16 00:27:49 +03:00
0ff067bdb7
Kernel: Add MMUScope
...
This disables interrupts and loads specified mmu for the
scope it lives in
2023-05-16 00:26:39 +03:00
31ac3260ed
Kernel: MMU keeps track of the current
2023-05-16 00:26:39 +03:00
53f4b5a9da
LibC: add function declarations to sys/stat.h
2023-05-11 15:11:33 +03:00
1cf7ef3de6
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
812e61ca70
Kernel: Add barebones GeneralAllocator for >4096B
2023-05-08 22:10:49 +03:00
2d0a5a9e15
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
f32d594879
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
2fe9af7165
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
ff5bcd4416
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
b65cd1d09b
Kernel: Invalid physical addresses from heap are specified now by 0
2023-05-06 17:34:22 +03:00
06bc807e34
Kernel: MMU can now provide info about virtual address space
2023-05-06 17:34:22 +03:00
0cb53efa01
Kernel: 64 bit MMU now properly identity maps kernel
2023-05-05 14:19:28 +03:00
f139fc2229
Kernel: namespace and function renames
...
MMU moved to namespace kernel
Kernel::Memory::Heap moved to just Kernel
MMU::map_{page,range} renamed to identity_map_{page,range}
Add MMU::get_page_flags
2023-04-28 14:48:38 +03:00
58ce907327
Kernel: Usespace threads now have an interrupt stack
2023-04-25 14:49:18 +03:00
6ecc8cac0e
Kernel: TSS stack can be set after initialization
2023-04-25 14:48:12 +03:00
bd95f17426
Kernel: Stack pointer out of bounds now panics with a message
2023-04-25 13:40:55 +03:00
b15deb420f
LibC: Write mostly functioning stdio
2023-04-23 14:32:37 +03:00
8a5608df91
Kernel: d{print,warn,error}ln(...) now has a spinlock
2023-04-22 17:58:51 +03:00
3f1c0ec91b
Kernel: Process now frees up its pages on destruction
2023-04-22 16:54:46 +03:00
1406a75a92
Kernel: Cleanup process creation for userspace
2023-04-22 16:51:50 +03:00
ec8b9640e2
Kernel: Usespace programs are now ran through ELF files
...
only 64 bit elf files are supported for now.
2023-04-22 15:35:32 +03:00
be14a6c239
Kernel: Stack pointer is validated when updated
...
This allows us not to fail stack pointer when in syscall since
interrupts use their own stack
2023-04-21 10:40:24 +03:00
3aa0eeb4a3
Kernel: Add barebones per process virtual addresses
...
We now assign every (userspace) process its own MMU which we load
in scheduler. This allows every process to have separate virtual
address space.
This is very hackish implementations but it works for now
2023-04-20 00:45:41 +03:00
b3eeb6412f
Kernel: Add some bareboness functionality to map virtual addresses
2023-04-19 23:51:36 +03:00
d38470c8e2
Kernel: Rename MMU::{un,}allocate... to MMU::{un,}map
...
This is more appropriate name for the behaviour :D
2023-04-19 21:50:30 +03:00
4475e3e184
Kernel: ATAController will fail to initialize in native mode
2023-04-19 17:29:36 +03:00
cf0320e47d
Kernel: PCI devices now report their prog_if
2023-04-19 16:43:05 +03:00
59a682c720
Kernel: init2 is now launched as a process instead of thread
...
Also only process can now add threads to scheduler. Nobody should
have raw access to scheduler and everything should be through
Process::current() or irqs (reschedules)
2023-04-19 00:39:06 +03:00
7bd4593748
Kernel: Process is not reference counted any more
...
This was not necessary and it made things needlessly complicated
2023-04-19 00:34:18 +03:00
5494e2c125
Kernel: Heap allows us to take free pages.
...
The API is kinda weird and will probably be reworked in near future
but this will work for now :)
2023-04-18 10:18:15 +03:00
aba82564f5
Kernel: Panic wont print stacktrace if it has already paniced
...
This prevents stack trace dump to panic and loop
2023-04-18 10:18:15 +03:00
93abee9c7c
Kernel: Map all ACPI tables on initialization
...
This makes their usage much easier and less error prone
They won't mapped be processes when we get to there, so this won't be
a problem
2023-04-18 10:18:15 +03:00
2614437ba0
Kernel: Reorder boot initialization
...
We now create the TTY as soon as possible so we can show console
output without serial port.
2023-04-18 10:18:15 +03:00
1aac3a0425
Kernel: Heap implementation can now give free pages from all of RAM
2023-04-18 10:18:15 +03:00
a180e72b6f
Kernel: Start working on heap
2023-04-18 10:18:15 +03:00
9c0f3dd996
Kernel: Move kmalloc and MMU to Memory directory
2023-04-18 10:18:15 +03:00
8637959289
Kernel: We can create basic userspace processes
...
These are still allocated on the kernel memory
2023-04-12 17:52:36 +03:00
6be53668b9
Kernel: Scheduler can now terminate processes threads
2023-04-12 17:49:04 +03:00
12779cdef8
Kernel: Threads now use only 4 KiB stack :)
2023-04-12 00:22:08 +03:00
809eb2fe3e
Kernel: Mark Scheduler::start() as noreturn as appropriate
2023-04-11 23:33:20 +03:00
8d6db168d6
Kernel: remove message from BAN::Error
...
We don't store the error message anymore in BAN::Error.
Instead we store a error code that can be mapped into a string.
This allows BAN::Error to only take 4 bytes instead of 128.
We should also make some kernel initialization just panic instead
of returning errors since they are required for succesfull boot
anyway.
2023-04-11 23:25:21 +03:00
2fabe1949c
BAN: Move RefPtr to its own file and create New.h
...
New.h contains definitions for placement new operators and
BAN::allocator and BAN::dealloctor
2023-04-10 21:07:25 +03:00
e704968f96
Kernel: Threads can now be terminated mid execution
2023-04-10 21:07:25 +03:00
abbbf7ec15
Kernel: Add tty to process and make termios modifiable
2023-04-05 02:53:28 +03:00
a423cd8bb3
Kernel: Add partial support for shell
...
We don't handle arrow keys, and the tty does not know how to clear
the screeen :D
2023-04-05 01:30:58 +03:00
db076058b9
Kernel: Process can now initialize stdio
...
This allows the use of the fds STD{IN,OUT,ERR}_FILENO
2023-04-05 01:10:25 +03:00
a1100624bf
Kernel: Start work on making tty a file
...
TTY is now a file that you can read from/write to. I still have
to port shell to use this new interface
2023-04-05 00:56:09 +03:00
28e1497f88
Kernel: add virtual write function to inode
2023-04-03 20:29:07 +03:00
3ee20d1a84
Kernel: Fix typo
2023-04-03 19:56:55 +03:00
461a5774f8
Kernel: Device dev and rdev number is done more properly
...
Also hd* partitions are now 1 indexed instead of 0
2023-04-03 11:43:16 +03:00
e322826347
Kernel: Optimize scheduler idling
...
Now after each interrupt we will ask the scheduler to reschedule
if the current thread is the idle thread. This allows semaphore
unblocking to be practically instant when there is only one thread
executing.
Now disk reading is back to ~3 MB/s for single threaded process
2023-04-03 01:51:05 +03:00
3998c5f955
Kernel: ATA now uses irqs instead of polling
...
Reading is now much slower at ~500 kB/s it was around 3 MB/s.
This is probably mostly due semaphore blocking taking atleast
until next reschedule (1 ms itervals). This will be a problem
as long as we are using only single processor.
I could try to use {READ/WRITE}_MULTIPLE commands, but since
most of the disk reads are 2 sectors (inode block size) this
will at most double the speed.
Most efficient speed up would of course be caching disk access
data and inodes overall.
2023-04-03 00:03:38 +03:00
762d22ed28
Kernel: Move ATADevice to its own file from ATAController
...
The API is kinda weird since device reads/writes go from
ATADevice -> ATAController -> ATADevice
but this is for now atleast necessary since ATAController has(?)
to keep all devices from using the disks at the same time
2023-04-02 18:26:19 +03:00
79090c2648
Kernel: cleanup includes
...
I went quickly went through all files since I found some weird
includes :D
2023-04-01 02:14:49 +03:00
7a6b1c8e47
Kernel: Fix traversing back from mount points
2023-04-01 01:54:35 +03:00
990887891e
Kernel: Process gets absolute paths for mount
2023-04-01 00:30:11 +03:00
3a4557d417
Kernel: Cleanup ATA device initialization
2023-03-31 00:58:57 +03:00
26d9a3e253
Kernel: Move DeviceManager to its own file
2023-03-30 22:39:45 +03:00
eef3631a5a
Kernel: Improve locking in Process, VFS and ATAController
...
We used to block on all process access. This meant that shell
reading the keyboard input would block all VFS access making disk
accesses practically impossible. We now block only when it is
necessary :)
2023-03-30 22:02:16 +03:00
88ee35165f
Kernel: Thread is no longer RefCounted
...
This makes developement with Scheduler much easier against compiler
optimizations. I could now remove the pragma GCC optimize stuff.
2023-03-30 19:16:51 +03:00
c8f05b4a7a
Kernel: Add Semaphore to block threads
2023-03-30 18:46:33 +03:00
2995a36942
Kernel: root partition is now passed from the commandline
2023-03-30 18:46:19 +03:00
3e8ab8271d
Kernel: Shell can now mount partitions
2023-03-30 15:06:41 +03:00
5b3a00c64f
Kernel: Inode::Mode is now a struct so we can have functions in it
2023-03-30 14:41:15 +03:00
0ce9fd8597
Kernel: StorageDevices and Controllers are now devices
2023-03-30 14:22:15 +03:00
c9badb5a1c
Kernel: Add IFBLK, IFLNK, IFSOCK to Inode::Mode
2023-03-30 13:15:46 +03:00
a513bc5749
Kernel: All devices have atime, mtime, ctime at their creation
2023-03-30 13:15:46 +03:00
5d5487315f
Kernel: Remove the mount test from VFS
2023-03-30 11:43:24 +03:00
3508df67b1
Kernel: fix stat command and device numbers
2023-03-30 10:43:08 +03:00
06ce1f0667
Kernel: Rewrite mounting code
2023-03-29 21:34:48 +03:00
1fb8c211f0
Kernel: Move Partition out of StorageDevice and rename functions
2023-03-29 13:23:01 +03:00
a24c2d9be2
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
f4b4987d43
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
ac094a48d6
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
2f8c9746e3
Kernel: Move ACPI to its own file
2023-03-27 17:30:45 +03:00
f8a2c60c8d
Kernel/BAN: move unix time conversion to BAN and add stat to Shell
2023-03-27 00:49:58 +03:00
770f7716a0
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
d67de70126
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
6f334756c5
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
310713d203
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
7d2ab53baa
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
2152b8b95f
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
4fd21bc303
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
15037bfc7a
Kernel: Move get_unix_time to RTC namespace
2023-03-23 18:14:51 +02:00
3572e9794a
BAN: Modify Span constructors to keep constness correctly
2023-03-23 14:26:03 +02:00
6ed9651176
Kernel: StorageDevice and Ext2 "support" writing
2023-03-23 13:04:13 +02:00
96579b88cf
Kernel: Cleanup GPT parsing code
2023-03-23 11:13:14 +02:00
b21348379f
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
633055293e
Kernel: Remove for_each_block from Ext2
2023-03-21 18:14:02 +02:00
22e45278a2
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
43f4657566
Kernel: Font parsing uses Spans now
2023-03-20 13:35:54 +02:00
39b560fde3
Kernel: Add basic mounting to VFS.
2023-03-19 05:51:25 +02:00
76d5364a55
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]]
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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
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We now don't have to manually free allocated data
2023-02-16 20:48:41 +02:00
460fc3a29f
Kernel: Start working on filesystem
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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
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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>
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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
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I think this is atomic read
2023-02-02 15:49:30 +02:00
9b8de5025a
All: rename every function from UpperCamelCase to snake_case
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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
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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
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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
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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
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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
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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
5106552bfd
Kernel: Serial output uses now "\r\n" as line endings
2023-01-10 11:24:30 +02:00
979a5960e4
Kernel: We don't use floating point arithemtic anymore in kernel
2023-01-10 11:10:17 +02:00
efd8638a96
Kernel: Improve kernel panic message and rename it 'panic'->'Panic'
2023-01-09 21:57:03 +02:00
531f470132
Kernel: Add helper to map pages with base address and size
...
This allows us to easily map enough pages for buffer with known size
VESA driver can now allocate enough memory for whole framebuffer if it
doesn't fit in a single page (1920x1080 for example)
2023-01-05 03:44:41 +02:00
d6623def32
Kernel: Paging uses now PAE with 2 MiB pages
2023-01-05 02:00:18 +02:00
fcec793873
Kernel: Shell now renders a mouse
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PS/2 mouse doesn't seem to work with PIC.
2022-12-30 20:48:15 +02:00
9d9a6b2fec
Kernel: VESA can now print 8x16 bitmaps
2022-12-30 20:47:25 +02:00
fc05642b74
Kernel: Make Render from buffer public tty function
2022-12-30 19:57:44 +02:00
ef0b2010e0
Kernel: Add basic PS/2 Mouse driver
2022-12-30 19:38:21 +02:00
3c92aa45fb
Kernel: 'cpuinfo' command in shell now shows wheter you are running on 64-bit cpu
2022-12-28 19:46:37 +02:00
5d7a767f8b
Kernel: Enable basic paging
2022-12-28 04:17:34 +02:00
fd4fdffd46
BAN::Formatter now takes putc like function as a parameter
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This allows us to use capturing lambdas as a putc like function
2022-12-27 19:55:07 +02:00
620b836fc3
Kernel: VESA now somewhat handles Cursor in Graphics mode
2022-12-27 18:29:02 +02:00
5ae1fc58e9
Kernel: Clean code in tty and vesa
2022-12-27 17:22:45 +02:00
2535eb1c4c
Kernel: TTY now handles keeping terminal buffer
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VESA Driver cannot scroll anymore, this is handled by tty
2022-12-27 17:06:33 +02:00
d8fd6afd12
Kernel: Make TTY a class
2022-12-23 15:55:45 +02:00
3f7a61a4d2
Kernel: VESA driver has now second buffer for fast scrolling
...
This allows us to not read from video memory, since it was very slow
I also implemented fast path for graphics clearing and scrolling if bpp is 32
2022-12-20 14:02:44 +02:00
5e2680cade
Kernel: You can now disable APIC from the grub commandline
2022-12-20 11:57:09 +02:00
0bdb01ee04
Kernel: Replace PIC with APIC
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If APIC/IOAPIC is not found, we fallback to PIC
Interrupts don't seem to work on real hardware (?)
2022-12-19 11:46:25 +02:00
f244728d33
Kernel: Add unicode support
2022-12-16 03:55:13 +02:00
6fe0d04f07
Kernel: Implement basic VESA Graphics mode driver
...
We now support VESA Graphics mode with some bitmap fonts
2022-12-16 00:47:03 +02:00
9274c9ee2f
Kernel: Abstract TTY to use new VESA
2022-12-15 19:05:07 +02:00
930661619b
Kernel: Add more functionality to Shell
...
commands 'time', 'cpuid', 'random'
2022-12-15 17:29:35 +02:00
a2d38af37a
Kernel: Implement 'cpuid' and enumerations for features
2022-12-15 17:28:54 +02:00
7bddcafadd
Kernel: Remove a lot of empty lines
2022-12-14 21:17:46 +02:00
711ba19a82
Kernel: Add basic Shell to test functionality
2022-12-13 21:34:50 +02:00
833a82c8d1
Kernel: Fix keymay brace/bracket to correct way around
2022-12-13 21:10:25 +02:00
fd6e0ed0f7
Kernel: debug printing now show system time correctly
2022-12-13 20:44:52 +02:00
174daa3e02
Kernel: Keyboard event callback can now be registered later
2022-12-13 16:15:10 +02:00
52c793bb5c
Kernel/BAN: Make Time a struct in BAN and add formatter to it
2022-12-13 12:37:26 +02:00
334abe6b27
Kernel: lol
2022-12-13 12:12:15 +02:00
68e88d9413
Kernel: Add clear() command public TTY API
2022-12-13 10:45:24 +02:00
e62a626b39
Kernel: Improve keyboard input by a lot
...
Seems to work on my 2 computerss
2022-12-13 10:45:06 +02:00
7ebe727a29
Kernel: Add RTC to get current time
2022-12-13 10:41:36 +02:00
835430e7b0
BAN: Move Formatter to new project called BAN
...
I also implemented basic ErrorOr and Queue
2022-12-13 10:39:57 +02:00
1283e74ee6
Kernel: Formatter now supports fill to length
2022-12-13 01:16:49 +02:00
9c72f7255a
Kernel: Add red colors to kernel panics
2022-12-13 00:57:13 +02:00
ddc28a8c0e
Kernel: Rename Printer to Formatter
2022-12-13 00:50:21 +02:00
3d3f12bd30
Kernel: Add new generic Printer class
...
kprint is now just a #define to Printer::print<terminal_putc>.
This allows us to use same print formatting for serial output :)
2022-12-10 00:57:09 +02:00
26f1ebe26f
Kernel: Implement very basic, but functional kmalloc/kfree
2022-12-09 00:26:24 +02:00
ef56f9a239
Kernel: Add floating point printing to kprint
2022-12-09 00:22:47 +02:00
817de9f359
Kernel: Properly handle finnish keyboard layout.
...
You can now type any basic ascii character from keyboard.
Multimedia keys are not yet handled.
2022-12-08 18:05:48 +02:00
4202c999fa
Kernel: IRQs are now working :)
2022-12-07 02:48:44 +02:00
343dda629c
Kernel panic now halts the system
2022-12-03 18:19:07 +02:00
4ebd0e5c36
Fix negative number printing in kprint
2022-11-16 20:27:22 +02:00
20f7c18988
kmalloc does not zero initialize kernel memory
2022-11-16 19:51:45 +02:00
f2b45ba212
Add GDT and IDT
2022-11-16 19:49:09 +02:00
b500a8a7ed
kmalloc
2022-11-16 19:48:36 +02:00
550ecbc951
Kernel panic uses kprint with parameters
2022-11-16 19:47:19 +02:00
123382eace
Fixes :)
2022-11-15 21:42:14 +02:00
7c06c75d6c
Move cursor in terminal when writing to it
2022-11-15 09:26:14 +02:00
d289916bc0
Changed back to lower half kernel, since im dump.
...
I dont see the benefit of higher half (and could not get multiboot info)
2022-11-15 00:38:33 +02:00
9e933a5ec5
Add kernel panic function
2022-11-14 18:53:00 +02:00
Bananymous