Bananymous
bcf62c5f2e
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
b51d2f5295
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
547eabb403
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
b4e4f7a6cc
Kernel: Print more detailed output on ISR
2023-09-25 20:33:07 +03:00
fe2dca16f0
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
82b049204d
Kernel: Print stack trace on isr
2023-09-11 01:20:55 +03:00
fd2bcc9156
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
198e6d7cf6
Kernel: Start work on abstracting Timers
2023-08-04 10:29:42 +03:00
e57c1fc9fc
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
217dbca7b7
Kernel: Cleanup returns from any kind on interrupts
2023-08-01 14:23:50 +03:00
8b1bccb79b
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
e86e755c51
Kernel: Generally improve signals
2023-07-31 22:28:18 +03:00
6f7d97cf94
Kernel: Remove is_in_syscall from Thread
2023-07-30 14:49:51 +03:00
5e434f5131
Kernel: Hardware exceptions now sends signals to userspace
2023-07-30 14:34:15 +03:00
f7bf6d5e62
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
86df258365
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
5e123031aa
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
d354cccd37
Kernel: Add enum for ISR name to number
2023-06-18 23:24:27 +03:00
bf617036c7
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
91f812e17f
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
db49cbd6e2
Kernel: We now store the processes exit code
2023-06-10 17:31:56 +03:00
93e6455171
Kernel: start work on higher half kernel
2023-05-30 08:00:17 +03:00
0202ccec5f
Kernel: ISR will now crash userspace process instead of panicing kernel
2023-05-28 20:53:10 +03:00
6262e41de1
Kernel: ISRs now print pid and tid
2023-05-06 00:10:15 +03:00
9c0f3dd996
Kernel: Move kmalloc and MMU to Memory directory
2023-04-18 10:18:15 +03:00
e322826347
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