83 lines
2.1 KiB
Rust
83 lines
2.1 KiB
Rust
//! Kernel main process implementation: filesystem initialization and userspace init start
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use abi::error::Error;
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use alloc::borrow::ToOwned;
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use kernel_fs::devfs;
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use libk::runtime;
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use libk_thread::thread::Thread;
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use memfs::MemoryFilesystem;
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use vfs::{impls::FnSymlink, IoContext, NodeRef};
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use crate::{
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fs::{FileBlockAllocator, INITRD_DATA},
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proc::{self, random},
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task::process::{ProcessImpl, ProcessManagerImpl},
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};
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fn setup_root() -> Result<NodeRef, Error> {
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let initrd_data = INITRD_DATA.get();
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let fs = MemoryFilesystem::<FileBlockAllocator>::from_slice(initrd_data.data).unwrap();
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fs.root()
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}
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/// Kernel's "main" process function.
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///
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/// # Note
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///
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/// This function is meant to be used as a kernel-space process after all the platform-specific
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/// initialization has finished.
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pub fn kinit() -> Result<(), Error> {
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infoln!("In main");
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runtime::spawn(ygg_driver_usb::bus::bus_handler())?;
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devfs::root().add_child(
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"tty",
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FnSymlink::new(|| {
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let thread = Thread::current();
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let process = thread.process::<ProcessManagerImpl>();
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if let Some(tty) = process.session_terminal() {
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Ok(tty)
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} else {
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Err(Error::InvalidFile)
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}
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}),
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)?;
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ygg_driver_net_loopback::init();
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ygg_driver_net_core::start_network_tasks()?;
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#[cfg(feature = "fb_console")]
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{
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use crate::device::display::console::update_consoles_task;
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runtime::spawn(async move {
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update_consoles_task().await;
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})?;
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}
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// Add keyboard device
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devfs::add_named_char_device(&ygg_driver_input::KEYBOARD_DEVICE, "kbd".to_owned())?;
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random::init();
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let root = setup_root()?;
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let mut ioctx = IoContext::new(root);
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{
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let group_id = ProcessImpl::create_group();
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let (user_init, user_init_main) =
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proc::load_binary(&mut ioctx, group_id, None, "/init", &["/init", "xxx"], &[])?;
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let mut io = user_init.io.lock();
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io.set_ioctx(ioctx);
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drop(io);
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user_init_main.enqueue();
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}
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Ok(())
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}
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