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362 Commits

Author SHA1 Message Date
Bananymous e00d18029d Kernel: rewrite some of APIC since it didn't work with xsdts for some reason 2023-01-26 02:57:14 +02:00
Bananymous 35d2e27292 Kernel: Improve MMU 
We don't have to invalidate page in AllocatePage() if we don't make
any changes. We also should not assert on deallocating non-present
pages, just return early :)
 2023-01-26 02:57:14 +02:00
Bananymous 589f338357 Kernel: Cleanup IDT register dump inline assembly 2023-01-26 02:57:14 +02:00
Bananymous 05b48fa71c Kernel: add gcc option to make sure we have (r/e)bp saved on stack 2023-01-26 02:57:14 +02:00
Bananymous aa0757e135 Kernel: Move dump_stacktrace from panic -> debug 2023-01-26 02:57:14 +02:00
Bananymous 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
Bananymous 9c31790359 Kernel: Add option to disable Serial output 
This makes all debug output to appear on the TTY
 2023-01-25 22:51:42 +02:00
Bananymous 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
Bananymous b315fdc27f Kernel: Finally managed to get 64-bit working 
I had weird problems with interrupts but everything should work now
 2023-01-25 19:19:28 +02:00
Bananymous c4670f49d4 Kernel: Refactor some IDT code 2023-01-25 19:19:28 +02:00
Bananymous 48348c9e57 Kernel: Cleanup APIC code. Remove unnecessary defines and add consts 2023-01-25 19:00:41 +02:00
Bananymous ba53582f23 Kernel: Rewrite APIC and PIC more OOP friendly 
x86_64 port is slowly coming together
 2023-01-23 20:13:57 +02:00
Bananymous b50bb03ed4 Kernel: Panic now halts machine even if we get spurious irqs 2023-01-23 18:25:48 +02:00
Bananymous 54043288cb Kernel: Move CPUID out of arch/ 
CPUID instructions behaves the same on x86 and x86_64. I am not
planning on supporting any non x86 based architectures.
 2023-01-23 18:12:52 +02:00
Bananymous 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
Bananymous 10c7ef7baa Kernel: MMU rename weird variable 2023-01-22 20:16:44 +02:00
Bananymous b67bbab083 Kernel: fix dump_stacktrace 2023-01-22 20:05:24 +02:00
Bananymous 62469c529f Kernel: IDT now allocates descriptors with kmalloc_eternal 2023-01-22 03:18:42 +02:00
Bananymous 026fdc251c Kernel: Add kmalloc_eternal back 2023-01-22 03:10:48 +02:00
Bananymous 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
Bananymous 6ec4ba3dc9 Kernel: Move dump_backtrace() out of arch. 
I discovered __builtin_frame_address()
 2023-01-22 03:00:13 +02:00
Bananymous fbfb3d6b70 Kernel: IDT cleanup GateDesctiptor usage 
And move everything to IDT namespace
 2023-01-22 02:06:43 +02:00
Bananymous 558374a47c Kernel: IDT flush only once in initialization 2023-01-22 02:06:43 +02:00
Bananymous 6e24ef8323 Kernel: IDT cleanup Kernel panic messages 2023-01-22 02:06:43 +02:00
Bananymous 3e8fbbaabd Kernel: Fix small typos in IDT 2023-01-22 01:12:47 +02:00
Bananymous 491610db2c Kernel: move GDT initialization to boot.S 2023-01-22 00:48:12 +02:00
Bananymous aac7595a47 Kernel: cleanup boot.S code and enable SSE 2023-01-21 23:44:23 +02:00
Bananymous fdbc04f29d Kernel: kmalloc now uses the actual kernel end location 2023-01-21 22:40:23 +02:00
Bananymous 9088f7b305 Kernel: kmalloc prints addresses on panic 2023-01-21 22:29:44 +02:00
Bananymous b5453fad5c Kernel: dump_stacktrace uses now "\r\n" line endings for bochs 2023-01-21 22:21:38 +02:00
Bananymous 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
Bananymous 9e092c80c0 Kernel: Cleanup boot.S 2023-01-21 22:16:01 +02:00
Bananymous 53a5ad3cf9 BAN: Function now properly forward arguments 2023-01-17 11:16:46 +02:00
Bananymous b9a4530e54 Kernel: Kernel::Panic now dumps stacktrace to com1 2023-01-16 21:50:50 +02:00
Bananymous 7540fa0385 Kernel: Shell now 'properly' parses commandline 2023-01-16 20:09:22 +02:00
Bananymous e307db47eb Kernel: Kernel::Panic() will now always print to serial output 2023-01-16 15:44:27 +02:00
Bananymous 73abc3b2ee fixup! Kernel: Move GDT to its own namespace and cleanup 2023-01-16 15:24:59 +02:00
Bananymous 46e5b3f3d6 Kernel: Move GDT to its own namespace and cleanup 2023-01-16 15:24:10 +02:00
Bananymous b46fa0d116 Kernel: Shell can now dump kmalloc info 2023-01-16 15:17:00 +02:00
Bananymous 8881c1e117 Kernel: Shell is no longer singleton 2023-01-16 15:16:39 +02:00
Bananymous 1545850be3 Kernel: Input callbacks use the new BAN::Function 2023-01-16 15:15:02 +02:00
Bananymous d5e162b1ea Kernel: fix kmalloc header 2023-01-16 12:10:50 +02:00
Bananymous 689338b506 Kernel: kmalloc can now dump current memory usage 2023-01-13 17:42:19 +02:00
Bananymous f547a788f2 Kernel: Add support for arrow keys in Shell 2023-01-13 15:07:24 +02:00
Bananymous bf4b26d1fd Kernel: kmalloc now returns nullptr if you try to allocate over kmalloc size 2023-01-13 15:04:06 +02:00
Bananymous 32453daf66 Kernel: actually dont map page 0 2023-01-13 15:04:06 +02:00
Bananymous 416a41745f Kernel: Kernel::Panic now checks that TTY is initialized instead of VESA 2023-01-13 15:04:06 +02:00
Bananymous 77e82de51e Kernel: Make IDT exceptions use a single Kernel:Panic 
This allows IDT to print exceptions even when we dont have TTY
 2023-01-13 15:04:06 +02:00
Bananymous af8d486893 Kenrel: TTY fix cursor position with ANSI escapes 2023-01-13 15:04:06 +02:00
Bananymous 75ee592fb5 Kernel: remove debug print from MMU 2023-01-13 00:04:50 +02:00
Bananymous 6b73547989 All: edit gcc flags 2023-01-13 00:04:15 +02:00
Bananymous 7f01eaa936 Kernel: Move CPUID feature strings to cpp file 2023-01-13 00:03:37 +02:00
Bananymous d0aa938b35 Kernel: remove unused function from kmalloc 2023-01-13 00:03:10 +02:00
Bananymous 4c7950cd3e Kernel: remove unused function from IDT 2023-01-13 00:02:39 +02:00
Bananymous 61bd9da8e0 BAN: Add [[nodiscard]] to BAN functions returning ErrorOr 2023-01-12 23:57:07 +02:00
Bananymous 4ae4ad528a Kernel: APIC use dprintln instead of kprintln 
VESA drivers will be initialized much later now so kprintln
will not be available when initializing APIC
 2023-01-12 13:52:22 +02:00
Bananymous f412c164b3 Kernel: Rename ACPI debug print macro 2023-01-12 13:48:05 +02:00
Bananymous 5493d1bae1 Kernel: Add debug print to MMU and fix comment 2023-01-12 13:46:02 +02:00
Bananymous 301ad89783 Kernel: Unallocate RSDT after we are done with it 2023-01-12 13:45:01 +02:00
Bananymous 087d14fbb7 Kenrel: Remove unnecessary print from kmalloc_initialize() 2023-01-12 13:24:41 +02:00
Bananymous 3dfe062de1 Kernel: Cleanup TTY code 2023-01-12 13:24:41 +02:00
Bananymous 33a4fcc662 Kernel: Add helper macro for bochs magic break point 2023-01-12 13:24:41 +02:00
Bananymous 8fd51fb47d Kernel: Replace Paging{.h,.cpp} with better MMU{.h,.cpp} 2023-01-12 13:24:36 +02:00
Bananymous 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
Bananymous 7d45b3cbd6 Kernel: Rewrote kmalloc to be much simpler and allow alignment 2023-01-10 21:10:36 +02:00
Bananymous d89b6aa9ce Kernel: Serial output now gives clickable links 2023-01-10 21:09:59 +02:00
Bananymous 6f9552d673 BAN: Add math to its own namespace 2023-01-10 19:11:27 +02:00
Bananymous 181478119e Kernel: Paging is now enabled by boot.S 2023-01-10 17:53:29 +02:00
Bananymous 85068e27d6 BAN: BAN/Memory.h now provides the operator new and delete 2023-01-10 17:51:33 +02:00
Bananymous c6467b8ebc Kernel: Multiboot data and kernel command lines are now global variables 2023-01-10 17:50:24 +02:00
Bananymous 5106552bfd Kernel: Serial output uses now "\r\n" as line endings 2023-01-10 11:24:30 +02:00
Bananymous 979a5960e4 Kernel: We don't use floating point arithemtic anymore in kernel 2023-01-10 11:10:17 +02:00
Bananymous efd8638a96 Kernel: Improve kernel panic message and rename it 'panic'->'Panic' 2023-01-09 21:57:03 +02:00
Bananymous 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
Bananymous 086f0c7cf6 Kernel: Better error reporting from VESA and fix texmode rendering 2023-01-05 03:36:20 +02:00
Bananymous d6623def32 Kernel: Paging uses now PAE with 2 MiB pages 2023-01-05 02:00:18 +02:00
Bananymous a12ddfa12a Kernel: Update PS/2 controller 2023-01-04 19:22:23 +02:00
Bananymous fcec793873 Kernel: Shell now renders a mouse 
PS/2 mouse doesn't seem to work with PIC.
 2022-12-30 20:48:15 +02:00
Bananymous 9d9a6b2fec Kernel: VESA can now print 8x16 bitmaps 2022-12-30 20:47:25 +02:00
Bananymous f51ca4b642 Kernel: Rewrite IDT exception kernel panic message 2022-12-30 20:03:09 +02:00
Bananymous fc05642b74 Kernel: Make Render from buffer public tty function 2022-12-30 19:57:44 +02:00
Bananymous ef0b2010e0 Kernel: Add basic PS/2 Mouse driver 2022-12-30 19:38:21 +02:00
Bananymous 3c92aa45fb Kernel: 'cpuinfo' command in shell now shows wheter you are running on 64-bit cpu 2022-12-28 19:46:37 +02:00
Bananymous 267367333e Kernel: Move paging code to a helper 2022-12-28 19:01:01 +02:00
Bananymous 06a4ef1d87 Kernel: Commandline parsing does not depend on kmalloc anymore 2022-12-28 04:17:46 +02:00
Bananymous 5d7a767f8b Kernel: Enable basic paging 2022-12-28 04:17:34 +02:00
Bananymous 3e8590687f Kernel: Cleanup code and move kmalloc initialization to later 2022-12-28 04:16:21 +02:00
Bananymous 2a65c5fd0f Kernel: Shell now actually prints to its TTY 2022-12-27 20:11:49 +02:00
Bananymous fd4fdffd46 BAN::Formatter now takes putc like function as a parameter 
This allows us to use capturing lambdas as a putc like function
 2022-12-27 19:55:07 +02:00
Bananymous 98fc72b0d0 Kernel: kmalloc now aligns everything by alignof(max_align_t) 
kmalloc properly aligns everything now.

I also changed so that kmalloc addresses are stored as uintptr_t
instead of void* or uint8_t* for easier arithemetic and less casting
 2022-12-27 19:07:20 +02:00
Bananymous 9169020ad2 Kernel: Remove unnecessary checks from GraphicsPutCharAt() 2022-12-27 18:29:51 +02:00
Bananymous 620b836fc3 Kernel: VESA now somewhat handles Cursor in Graphics mode 2022-12-27 18:29:02 +02:00
Bananymous 2d46281c16 Kernel: TTY scroll is now done using memmove 
This will be faster when memory functions will be optimized
 2022-12-27 17:45:47 +02:00
Bananymous 5ae1fc58e9 Kernel: Clean code in tty and vesa 2022-12-27 17:22:45 +02:00
Bananymous 2535eb1c4c Kernel: TTY now handles keeping terminal buffer 
VESA Driver cannot scroll anymore, this is handled by tty
 2022-12-27 17:06:33 +02:00
Bananymous f7eb85babd Kernel: IDT exceptions print better errors now 2022-12-23 15:56:10 +02:00
Bananymous d8fd6afd12 Kernel: Make TTY a class 2022-12-23 15:55:45 +02:00
Bananymous 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
Bananymous 5e2680cade Kernel: You can now disable APIC from the grub commandline 2022-12-20 11:57:09 +02:00
Bananymous 4c559f50a4 BAN: StringView::Split() now precomputes number of elements 
We dont have to resize vector on PushBack()'s if we reserve required size
 2022-12-20 11:37:28 +02:00
Bananymous c82caacbaa Kernel: Cleanup APIC code 
APIC seems to work on my main machine, but not on other one
 2022-12-20 04:45:46 +02:00
Bananymous 64a5a28ff0 Kernel: Add time since boot to Shell 2022-12-19 11:46:38 +02:00
Bananymous c8866aa88b Kernel: Move GDT and IDT assembly to inline assembly 2022-12-19 11:46:38 +02:00
Bananymous 0bdb01ee04 Kernel: Replace PIC with APIC 
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
Bananymous 7efa5bfb75 Kernel: Shell backspace unicode detection cleanup 2022-12-16 11:53:59 +02:00
Bananymous f244728d33 Kernel: Add unicode support 2022-12-16 03:55:13 +02:00
Bananymous 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
Bananymous 9274c9ee2f Kernel: Abstract TTY to use new VESA 2022-12-15 19:05:07 +02:00
Bananymous 930661619b Kernel: Add more functionality to Shell 
commands 'time', 'cpuid', 'random'
 2022-12-15 17:29:35 +02:00
Bananymous a2d38af37a Kernel: Implement 'cpuid' and enumerations for features 2022-12-15 17:28:54 +02:00
Bananymous 7bddcafadd Kernel: Remove a lot of empty lines 2022-12-14 21:17:46 +02:00
Bananymous 711ba19a82 Kernel: Add basic Shell to test functionality 2022-12-13 21:34:50 +02:00
Bananymous f8224e55b1 Kernel: Force strlen compilation so BAN can use it 2022-12-13 21:33:54 +02:00
Bananymous ced05ff5f2 BAN: use only memcmp when comparing string(view) with const char* 2022-12-13 21:32:51 +02:00
Bananymous 833a82c8d1 Kernel: Fix keymay brace/bracket to correct way around 2022-12-13 21:10:25 +02:00
Bananymous fd6e0ed0f7 Kernel: debug printing now show system time correctly 2022-12-13 20:44:52 +02:00
Bananymous 174daa3e02 Kernel: Keyboard event callback can now be registered later 2022-12-13 16:15:10 +02:00
Bananymous 171a33bbcd Kernel/BAN: Add weekday to Time structure and get it with RTC 2022-12-13 14:37:10 +02:00
Bananymous 52c793bb5c Kernel/BAN: Make Time a struct in BAN and add formatter to it 2022-12-13 12:37:26 +02:00
Bananymous 334abe6b27 Kernel: lol 2022-12-13 12:12:15 +02:00
Bananymous 68e88d9413 Kernel: Add clear() command public TTY API 2022-12-13 10:45:24 +02:00
Bananymous e62a626b39 Kernel: Improve keyboard input by a lot 
Seems to work on my 2 computerss
 2022-12-13 10:45:06 +02:00
Bananymous 7ebe727a29 Kernel: Add RTC to get current time 2022-12-13 10:41:36 +02:00
Bananymous 835430e7b0 BAN: Move Formatter to new project called BAN 
I also implemented basic ErrorOr and Queue
 2022-12-13 10:39:57 +02:00
Bananymous 1283e74ee6 Kernel: Formatter now supports fill to length 2022-12-13 01:16:49 +02:00
Bananymous 2938c85c1a Kernel: Makefile formatting 2022-12-13 00:59:53 +02:00
Bananymous f6def7a747 Kernel: initialize every irq handler to nullptr 2022-12-13 00:57:48 +02:00
Bananymous 9c72f7255a Kernel: Add red colors to kernel panics 2022-12-13 00:57:13 +02:00
Bananymous 5f75479861 Kernel: zero initialize VGA_MEMORY and fix colors 2022-12-13 00:56:30 +02:00
Bananymous 79a2bccd21 Kernel: kfree now checks for nullptr 2022-12-13 00:53:19 +02:00
Bananymous 5494d8d2ac Kernel: We can now use destructors in global objects 2022-12-13 00:52:32 +02:00
Bananymous ddc28a8c0e Kernel: Rename Printer to Formatter 2022-12-13 00:50:21 +02:00
Bananymous e1a15a4989 Kernel: Add video mode request for bootloader 2022-12-10 03:55:24 +02:00
Bananymous 03e7812cae Kernel: Add basic ANSI support :) 2022-12-10 03:53:44 +02:00
Bananymous 862b32d735 Kernel: Improve kmalloc error messages 2022-12-10 01:08:01 +02:00
Bananymous 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
Bananymous 26f1ebe26f Kernel: Implement very basic, but functional kmalloc/kfree 2022-12-09 00:26:24 +02:00
Bananymous ef56f9a239 Kernel: Add floating point printing to kprint 2022-12-09 00:22:47 +02:00
Bananymous 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
Bananymous 5ba7af2cf6 TTY: Treat tabs as spaces 2022-12-08 17:50:44 +02:00
Bananymous e998615253 Kernel: Move GDT and IDT files to architecture specific folder 2022-12-08 17:50:04 +02:00
Bananymous b7a600c86d Kernel: Keyboard is now handeled "properly" 2022-12-07 04:35:38 +02:00
Bananymous 998184e288 Kernel: TTY now handles '\b' 2022-12-07 04:35:02 +02:00
Bananymous 4202c999fa Kernel: IRQs are now working :) 2022-12-07 02:48:44 +02:00
Bananymous 343dda629c Kernel panic now halts the system 2022-12-03 18:19:07 +02:00
Bananymous c17f61611e Improve buildsystem by making build directory 
We now create build directory for kernel and libc so that source
directories are kept more clean.
 2022-12-03 18:17:37 +02:00
Bananymous c292ef5471 Improve IDT Kernel panic 2022-11-16 20:28:07 +02:00
Bananymous 4ebd0e5c36 Fix negative number printing in kprint 2022-11-16 20:27:22 +02:00
Bananymous 20f7c18988 kmalloc does not zero initialize kernel memory 2022-11-16 19:51:45 +02:00
Bananymous f2b45ba212 Add GDT and IDT 2022-11-16 19:49:09 +02:00
Bananymous b500a8a7ed kmalloc 2022-11-16 19:48:36 +02:00
Bananymous 550ecbc951 Kernel panic uses kprint with parameters 2022-11-16 19:47:19 +02:00
Bananymous 123382eace Fixes :) 2022-11-15 21:42:14 +02:00
Bananymous 7c06c75d6c Move cursor in terminal when writing to it 2022-11-15 09:26:14 +02:00
Bananymous 3bc4d7d39b Rename .s extensions to .S 2022-11-15 09:25:18 +02:00
Bananymous 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
Bananymous 9e933a5ec5 Add kernel panic function 2022-11-14 18:53:00 +02:00
Bananymous b185ed4fd3 Libc is now written in C++ 2022-11-14 00:31:24 +02:00
Bananymous fd13f74bbf Changed into higher half kernel 
https://wiki.osdev.org/Higher_Half_x86_Bare_Bones
 2022-11-13 02:03:20 +02:00
Bananymous db656fe469 Implement Stack Smashing Protection 2022-11-12 23:46:33 +02:00
Bananymous 61609db228 Kernel is now in C++ :) 2022-11-12 21:30:26 +02:00
Bananymous e6b4866ab0 Initial commit. We have a booting kernel 2022-11-12 21:04:47 +02:00