Bananymous
27eb5af6f0
Kernel: Rework interrupt mechanism
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All interruptrable classes now inherit from Interruptable which
has methdo handle_irq which is called on a interrupt.
2023-10-05 18:53:45 +03:00
245f58cc3a
Kernel: mmap regions are now demand paged
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mmap will not actually take any memory unless you use the given
memory.
2023-09-28 21:07:14 +03:00
d7ecf94347
Kernel: Reboot will now always succeed
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If acpi reset fails, we forcefully trigger a triple fault to restart
the system.
2023-09-28 13:53:03 +03:00
976114fde1
Kernel: Print more detailed output on ISR
2023-09-25 20:33:07 +03:00
7a7c5e433e
Kernel/LibC: add flag to enable/disable sse support
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SSE support is very experimental and causes GP. I decided to make
SSE not default until I get to fixing it :)
2023-09-23 02:28:25 +03:00
7ec860a3d4
Kernel: Print stack trace on isr
2023-09-11 01:20:55 +03:00
0b8396b1a6
Kernel: IDT now sends EOI for every interrupt
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EOI is sent before calling the interrupt handler. This should be fine
since all interrupts are processed with interrupts disabled
2023-08-09 09:57:02 +03:00
659adb89a6
Kernel: Start work on abstracting Timers
2023-08-04 10:29:42 +03:00
643e87a076
Kernel: Threads are deleted sooner and cleaner
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We now delete threads when
1. it is marked as Terminated and is the current thread
2. it tries to start execution in Terminated state
This allows us to never have thread executing in Terminated state
2023-08-04 10:29:42 +03:00
a78a7ed156
Kernel: Cleanup returns from any kind on interrupts
2023-08-01 14:23:50 +03:00
b245a55ea0
Kernel: store/load sse/mmx/fpu state on isr/irq/syscall
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I haven't tested this yet but should be fine. This will be optimized
to only save state from threads that are using it
2023-07-31 22:28:57 +03:00
c4f6c859c1
Kernel: Generally improve signals
2023-07-31 22:28:18 +03:00
de927b6b05
Kernel: Remove is_in_syscall from Thread
2023-07-30 14:49:51 +03:00
1d7795e22c
Kernel: Hardware exceptions now sends signals to userspace
2023-07-30 14:34:15 +03:00
9729e5a05b
Kernel: Change signal kernel API
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return rsp and rip are now stored per thread
2023-07-23 18:33:10 +03:00
4086d7c3be
Kernel: rework the whole PageTable structure
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We now have page table structure for kernel memory which is shared
between all processes.
2023-07-05 23:41:35 +03:00
9a7b2587af
Kernel: kmalloc has now somewhat dynamic storage
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Allocations bigger than PAGE_SIZE and those not forced to be identity
mapped are now done on a GeneralAllocator. This allows us to use kmalloc
for big allocations; bigger than the fixed 1 MiB storage.
This is still a hack and the whole kmalloc will have to be rewritten at
some point, but for now this does the job :D
2023-06-18 23:27:00 +03:00
57e59d998f
Kernel: Add enum for ISR name to number
2023-06-18 23:24:27 +03:00
23543b15ca
Kernel: Rework syscall calling
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I removed the intermediate function when calling syscalls. Now syscall
handler calls the current process automatically. Only exception is
sys_fork, since it needs a assembly trampoline for the new thread.
2023-06-12 14:16:48 +03:00
caca6dc701
Kernel: Exceptions will now enable interrupts before calling exit()
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this allows scheduler verification on reschedule() not panic
2023-06-11 03:29:22 +03:00
4cdeb98897
Kernel: We now store the processes exit code
2023-06-10 17:31:56 +03:00
0907965dc5
Kernel: start work on higher half kernel
2023-05-30 08:00:17 +03:00
833642d405
Kernel: ISR will now crash userspace process instead of panicing kernel
2023-05-28 20:53:10 +03:00
92daa831d1
Kernel: ISRs now print pid and tid
2023-05-06 00:10:15 +03:00
fdb4eb6042
Kernel: Move kmalloc and MMU to Memory directory
2023-04-18 10:18:15 +03:00
c936aac777
Kernel: Optimize scheduler idling
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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
8b8e3cbbf0
Kernel/Userspace: Start initial work on userspace and syscalls
2023-03-13 15:32:46 +02:00
c9ea22f5e2
Kernel: IDT now confirms that it allocated succesfully
2023-02-22 21:48:40 +02:00
d9c05b7378
Kernel: rewrite the whole kmalloc (again)
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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
1bd8b0fe5c
Kernel: Sleep now actually sleeps and allows idling
2023-02-19 18:52:25 +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
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
589f338357
Kernel: Cleanup IDT register dump inline assembly
2023-01-26 02:57:14 +02:00
e87026f01d
Kernel: I have no idea what this commit does
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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
b315fdc27f
Kernel: Finally managed to get 64-bit working
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I had weird problems with interrupts but everything should work now
2023-01-25 19:19:28 +02:00
Bananymous
Bananymous