RELEASES.md

@@ -1,89 +0,0 @@
-# Releases
-
-## AcadiaOS 0.1.0 (2023-12-08)
-
-This marks the first release of AcadiaOS! There is very little user functionality currently but a
-lot of foundational work has been done.
-
-### Zion Kernel
-
-Capability-based microkernel.
-
-Boot Process:
-- Initializes GDT and IDT.
-- Sets up a separate stack for page faults and general protection faults.
-- Enables SSE.
-- Minimally initializes the APIC in order to use its timer as well as map the PS/2 Keyboard and PCI
-interrupts.
-- Enables Syscalls using the sysenter instruction.
-- Enables the scheduler.
-- Loads the Yellowstone init program and yields to it.
-
-Features:
-- Physical memory manager can dole out single pages as well as continuous chunks. Freed pages and
-chunks can be reused.
-- Kernel memory allocation done primarily using a slab allocator for sizes up to 128 bytes. (Larger
-allocations are done by simply incrementing a pointer and are never truly freed. However currently 
-none occur.).
-- Round robin scheduler with a single priority level.
-
-Interface:
-- Capability-based interface.
-- Process Management: ProcessInit, ProcessExit.
-- Thread Management: ThreadCreate, ThreadStart, ThreadExit.
-- Memory Management: MemoryObjectCreate, MemoryObjectCreateContiguous, MemoryObjectCreatePhysical,
-MemoryObjectDuplicate, MemoryObjectInspect, AddressSpaceMap, AddressSpaceUnmap.
-- IPC with Channels, Ports, and Endpoints.
-- Channel: ChannelCreate, ChannelSend, ChannelRecv.
-- Ports: PortCreate, PortSend, PortRecv, PortPoll.
-- Endpoints: EndpointCreate, EndpointSend, EndpointRecv, ReplyPortSend, ReplyPortRecv.
-- Capability Management: CapDuplicate, CapRelease.
-- Irq Management: IrqRegister.
-- Synchronization: ProcessWait, ThreadWait, MutexCreate, MutexLock, MutexRelease, SemaphoreCreate,
-SemaphoreWait, SemaphoreSignal.
-- Debug Output: Debug.
-
-### Yellowstone
-
-Initialization process that starts up the other necessary boot processes then maintains a registry
-of the available IPC Servers running on the system.
-
-- Spawns the AHCI Client "Denali".
-- Once it is online, reads the GPT and spawns the VFS service "VictoriaFallS".
-- Once it is online, reads "init.txt" and spawns the processes listed in the file from the /bin dir.
-
-
-### Denali
-
-Barebones AHCI Driver.
-
-- Reads the SATA PCI region the HBAs associated with it.
-- Starts the Denali service to allow clients to read directly from disk. 
-- Currently only one command port is used so reads are done in serial.
-
-### VictoriaFallS
-
-Barebones VFS Server. Currently passes all calls to it directly to the ext2 filesystem at the root
-of the VFS.
-
-- Allows reading of files and directories.
-- Does not cache results or inodes so all calls go directly to the AHCI Server.
-
-
-### Teton
-
-Very basic terminal and shell.
-
-- Supports ls, pwd, cd, and exec commands.
-- All commands must use absolute paths.
-- Starts a child process when using exec and waits for it to complete.
-
-### Yunq
-
-IDL for IPC on AcadiaOS with cpp codegen for messages, clients, and servers.
-
-- Supports serializing capabilities for IPC.
-- Supports repeated integer fields.
-- Supports string files.
-- Allows namespacing cpp definitions.
-

sys/TODO.md

@@ -1,9 +1,12 @@
 # System TODO
 
+## Yellowstone
+
+- Start the next service from a configuration file.
+
 ## Denali
 
 - Add the ability to send multiple Ahci commands at once.
 
 ## VictoriaFalls
 
-- Cache the fs structure rather than reading it each time.

zion/TODO.md

@@ -17,9 +17,19 @@
 
 - Use a buddy allocator with a real free when an object is too large for
   the slab allocator.
+- Free kernel stacks on thread/process exit.
+
+## Process Management
+
+- Clean up process state and capabilities when it exits.
+
+## Processor
+
+- Enable all instruction types before passing to user space.
 
 ## Faults and Interrupts
 
+- Exit process rather than panicking on unhandled Page Fault (and others).
 - Add additional fault handlers to avoid GP faults.
 - Improve process for registering interrupt handlers.