Commit Graph

173 Commits

Author SHA1 Message Date
1ecd24f5d6 Kernel: Add SSE support (enable SSE on boot and save context (user tasks only) on task switch) 2022-10-02 18:53:54 +02:00
03db57bbf9 Sanity checks 2022-10-01 12:32:09 +02:00
66bee86a8b Scheduler: add a load_user_task function that directly loads a file from the initrd 2022-10-01 12:28:32 +02:00
9012ccc49e Remove _userspace and move the idle task to assembly 2022-10-01 12:16:30 +02:00
f25014a8ed refine syscalls 2022-09-29 19:17:43 +02:00
f1a7138568 User mode (with a few syscalls)
IT ACTUALLY WORKS NOW.

Why wasn't it working? Oh, because I was not setting already present page tables's permissions to user mode. Just a little bug. THAT I SPENT DAYS TRYING TO FIND

Anyways, it works now. Such a relief...
2022-09-25 20:35:05 +02:00
57bb1164e9 change 4 pages of stack per stack to a #define 2022-09-25 18:13:20 +02:00
d3527b8824 Use new and delete in Scheduler 2022-09-25 18:12:12 +02:00
19dff40ee2 Scheduler: track total CPU time of tasks 2022-09-25 17:49:51 +02:00
aee4e55fdd add a proper kernel panic 2022-09-25 16:56:00 +02:00
059bf86ddf Scheduler: use kmalloc and kfree 2022-09-24 23:18:33 +02:00
3891d0c52e Rename KernelMemoryManager to MemoryManager
Kind of a more catchy name, isn't it?
2022-09-24 21:45:13 +02:00
c3e5251687 Some more userland and font failing 2022-09-23 16:41:43 +02:00
11dd165a8e Scheduler: add proper support for user tasks (still faults though) 2022-09-22 08:14:04 +02:00
ec01dc2927 Scheduler: Change fixed Task array for (highly inefficient) memory allocation, add userspace task support (which as memory is mapped kernel-only instantly crashes), and support for exiting a task (marking it as exited and reaping it later) 2022-09-21 21:06:00 +02:00
4401b31440 Remove ds from context, no need for it in x86_64, use ss instead 2022-09-21 21:03:24 +02:00
49ddb47ad4 Reorganize structure 2022-09-21 17:56:53 +02:00
1dce3a0cf7 Give 1 tick of CPU time to the idle task 2022-09-20 20:48:49 +02:00
ddbe9b8b8b Few small adjustments to the scheduler 2022-09-20 20:02:08 +02:00
1c12cf016e Add a Scheduler.
Finally.

Just Round Robin with sleeping, but it's still awesome. I think this can finish v0.3, with a few adjustments.
2022-09-20 19:58:04 +02:00
245d5e514d Optimizations in Spinlock.asm 2022-09-19 16:36:34 +02:00
99e681aeb4 Forgot to add volatile
Did I check to see if it compiled before making the previous commit? Yes, of course, why are you asking? ...
2022-09-18 20:16:46 +02:00
d4a982306f Add spinlocks 2022-09-18 20:15:19 +02:00