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162 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