drew
/
acadia
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 1 Wiki Activity
415 Commits 1 Branch 1 Tag 3.2 MiB
Commit Graph

51 Commits

Author SHA1 Message Date
Drew Galbraith 8fb5b7c03c [Zion] Move existing proc/thread cleanup calls to the cleanup thread. 2023-11-24 15:40:44 -08:00
Drew Galbraith cb590c96b8 [Zion] Add a proc/thread cleanup thread for future use. 2023-11-24 15:04:03 -08:00
Drew Galbraith 941d7c8d59 [Zion] Add a way to unwind the stack and recover from user-space faults. 2023-11-22 18:25:08 -08:00
Drew Galbraith 96063126cb [Zion] Add task switching for SSE registers and enable them in userspace. 2023-11-21 15:52:17 -08:00
Drew Galbraith 308dd6a203 [Zion] Add a framework for better process exit. 2023-11-16 23:03:27 -08:00
Drew Galbraith aa2d80b557 [Zion] Move ProcessManager to map as well. 2023-11-16 22:17:11 -08:00
Drew Galbraith 46d02e5eae [Zion] Remove sleeping messages. 2023-11-15 16:27:09 -08:00
Drew Galbraith 69aced2220 [Zion] Move to StrFormat for debug line. 2023-11-05 09:24:09 -08:00
Drew Galbraith 78624d5291 [Zion] Immediately schedule enqueued threads if we are sleeping. 2023-11-02 22:28:08 -07:00
Drew Galbraith 3110087498 [zion] Don't dump process states on sleep 2023-08-01 10:42:53 -07:00
Drew Galbraith 02e6b49d90 [glacier] Add a vector class 2023-06-26 15:46:03 -07:00
Drew Galbraith 64d355b20d [glacier] Move LinkedList to glacier. 2023-06-26 15:01:55 -07:00
Drew Galbraith a99096b0ff [zion] Move the scheduler to the IntrusiveList for runnable threads 2023-06-21 16:28:42 -07:00
Drew Galbraith e1af79b975 [zion/glacier] Move RefPtr to glacier. 2023-06-21 15:07:40 -07:00
Drew Galbraith 1cebe547c0 [zion] Allow the sleep thread to be preempted. 
We can't yield it when the next thread is unblocked for now because it
may still be holding a lock that the prempted thread is waiting on.
 2023-06-19 21:47:37 -07:00
Drew Galbraith b27672d5de [zion] Update LinkedList iterator semantics. 2023-06-16 15:24:38 -07:00
Drew Galbraith 4e328c2f7a Set RSP0 on context switch 
Previously we only set it on thread init which caused interrupts to
stomp on the stack of the most recently started thread, potentially
overwriting their cr3 and other variables and causing a crash.
 2023-06-16 01:52:59 -07:00
Drew Galbraith 6986f534f8 Add a method for blocking threads on ports. 
Additionally add the first lock class since we are becoming more
concurrent.
 2023-06-12 20:56:25 -07:00
Drew Galbraith 0f0e39d1e9 Further parse AHCI information. 
Send an IDENTIFY command to each drive and set up a hook to handle
interrupts.
 2023-06-12 19:20:51 -07:00
Drew Galbraith 4e1888bd24 Set eflags properly for jump to userspace 2023-06-12 19:20:42 -07:00
Drew Galbraith b5ad454ad1 Move Process & Thread to the object folder. 2023-06-06 20:18:53 -07:00
Drew Galbraith 4e278a4664 Make a KernelObject base class for all Capabilities. 2023-06-06 20:13:07 -07:00
Drew Galbraith d358c1d672 Move process be to RefCounted 2023-06-06 19:12:46 -07:00
Drew Galbraith 2e1357255c Create a RefCounted type and use it for Thread. 
This should prevent me from actually creating 2 shared ptrs of
a single kernel object with their separate ref counts.
 2023-06-06 19:05:03 -07:00
Drew Galbraith d9b17d96d7 Cleanup Thread constructor 2023-06-06 18:40:32 -07:00
Drew Galbraith b0c2a6732b Always create threads in CREATED state. 
Simplify the process class to have threads marked as runnable
separately.
 2023-06-06 16:27:25 -07:00
Drew Galbraith ef8eb5d993 Add a threading syscall API. 2023-06-06 16:24:03 -07:00
Drew Galbraith a092a57483 Begin defining the process/thread api 2023-06-06 15:01:31 -07:00
Drew Galbraith 69b5cd001f Add a skeleton framework for capabilities. 
Use the first capability to spawn a child process.
 2023-05-30 23:55:42 -07:00
Drew Galbraith 9e3df0ccd0 Add pid/tid to all log messages 2023-05-30 23:22:29 -07:00
Drew Galbraith 2eefda6114 add a class to allocate and manage user space stacks 2023-05-30 22:35:57 -07:00
Drew Galbraith 1db93e5b12 Move PML4 initialization into the VirtualMemory class. 2023-05-30 21:39:19 -07:00
Drew Galbraith f22dd66c8d Manage KernelStacks separately rather than just allocing bytes. 
Create a global KernelStackManager that will handle the relevant allocs.
 2023-05-30 21:28:44 -07:00
Drew Galbraith 3c3341a90f Add a process spawn syscall and use it to start a proc. 
Also add a skeleton VirtualMemory manager to be used per process.
 2023-05-30 20:55:03 -07:00
Drew Galbraith b9b45c5e45 Add the ability to copy memory to non resident process. 
Use/Test this by loading the user space elf from the kernel process
before it starts rather than as a part of the first thread.

This simplifies thread start a fair bit.
 2023-05-30 01:27:47 -07:00
Drew Galbraith de49dcc01a Move scheduler to new global class format. 2023-05-29 23:48:32 -07:00
Drew Galbraith 7fe6c24aa5 Add a ProcessManager class to store Process objects. 
Trying out a new method for exposing global objects directly via a
variable.
 2023-05-29 23:35:44 -07:00
Drew Galbraith b58186265e Split Yield and Preempt into separate scheduling functions. 
This switch makes the logic for each much easier to parse.
 2023-05-29 23:09:39 -07:00
Drew Galbraith 3fee5ac9d7 Rework scheduler to store the current thread separately. 
This works better with the sleep thread and lets us check state
transitions more easily.
 2023-05-29 22:54:22 -07:00
Drew Galbraith 80d2bf1aaa Move Processes and Threads to be stored in SharedPtr 
Reference counting lets us pass these around a bit more easily.

SharedPtr was lightly tested using uint64_t in the main zion funcion.

Also add a sleep functionality instead of panicking. Functionally the
same right now since we don't preempt.
 2023-05-29 15:50:38 -07:00
Drew Galbraith 9f3ffbf5b4 Move Process to storing Threads in a linked list. 
This should really be a vector or hashmap of some sort but this is fine
for now.
 2023-05-29 15:08:02 -07:00
Drew Galbraith 5cab9f843e Move process list to a linked list. 
Add basic iteration ability to the linked list.
 2023-05-29 14:59:23 -07:00
Drew Galbraith 71196dc90f Move scheduler threads to a linked list implementation. 
Removes the internal next ptr from the Thread class.

We avoid doing a memory operation when scheduling on yield because we
simply cycle the item to the back of the list.
 2023-05-29 14:32:49 -07:00
Drew Galbraith a06c9dced4 Add thread and process states. 
Add a thread exit call.
 2023-05-29 13:51:03 -07:00
Drew Galbraith 7184f527a0 Jump to user mode. 
This instantly creates a page fault as we always map pages with ring 0
permissions.
 2023-05-29 13:06:08 -07:00
Drew Galbraith aefb4f082b Add a kernel ELF module and load it in a new process. 
Don't yet jump to userspace.
 2023-05-29 00:32:54 -07:00
Drew Galbraith f86bbe6ea9 Wireframe for syscalls in place 2023-05-18 16:03:09 -07:00
Drew Galbraith d3024211a7 Cycle through multiple tasks in multiple processes 2023-05-18 13:56:54 -07:00
Drew Galbraith 0d275c72a1 Have processes enqueue their own threads 2023-05-18 13:28:22 -07:00
Drew Galbraith cb41953354 Scheduler with working threads. 
Currently only one process but it is a start.
 2023-05-18 13:24:02 -07:00