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feat(aweos): advance end-user runtime toward 30 percent readiness #48

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feat(aweos): advance end-user runtime toward 30 percent readiness #48

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28e1afa
feat(aweos): advance end-user runtime toward 30 percent readiness
google-labs-jules[bot] Aug 26, 2026
030c57c
feat(aweos): advance end-user runtime toward 30 percent readiness
google-labs-jules[bot] Aug 26, 2026
0df35f4
feat(aweos): advance end-user runtime toward 30 percent readiness
google-labs-jules[bot] Aug 26, 2026
d24cc29
feat(aweos): advance end-user runtime toward 30 percent readiness
google-labs-jules[bot] Aug 26, 2026
f8e497f
feat(aweos): advance end-user runtime toward 30 percent readiness
google-labs-jules[bot] Aug 26, 2026
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28 changes: 12 additions & 16 deletions kernel/src/entry.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -139,12 +139,8 @@ pub fn kernel_entry(info: &BootInfo) -> KernelBootStatus {
#[cfg(all(target_arch = "x86_64", target_os = "none"))]
#[unsafe(no_mangle)]
pub extern "C" fn userspace_entry() -> ! {
use crate::arch::x86_64::serial_write_str;
use awe_ayui::{AppType, Compositor, Framebuffer, Rect};

let msg = b"AWEOS: Ring 3 userspace reached and active!\r\n";
serial_write_str("AWEOS: Ring 3 userspace reached and active!\r\n");

let mut process = crate::process::ProcessDescriptor {
id: crate::process::ProcessId(1),
state: crate::process::ProcessState::Running,
Expand All @@ -158,10 +154,14 @@ pub extern "C" fn userspace_entry() -> ! {
process: &mut process,
};

// Syscall Write (8) -> log Ring 3 status
context.dispatch(8, [msg.as_ptr() as u64, msg.len() as u64, 0, 0, 0, 0]);
// Helper macro for logging from Ring 3 via kernel Syscall::Write (8)
let mut sys_log = |msg: &[u8]| {
context.dispatch(8, [msg.as_ptr() as u64, msg.len() as u64, 0, 0, 0, 0]);
};

sys_log(b"AWEOS: Ring 3 userspace reached and active!\r\n");
sys_log(b"AWEOS: Initializing AWE-Compositor & Graphical Desktop Shell...\r\n");

serial_write_str("AWEOS: Initializing AWE-Compositor & Graphical Desktop Shell...\r\n");
let mut compositor = Compositor::new();

// Launch Desktop Shell Applications (Terminal, System Info, About AWEOS)
Expand Down Expand Up @@ -208,7 +208,7 @@ pub extern "C" fn userspace_entry() -> ! {
compositor.focus(sysinfo_win).ok();
compositor.focus(term_win).ok();

serial_write_str("AWEOS: Desktop GUI initialized automatically with 3 active windows\r\n");
sys_log(b"AWEOS: Desktop GUI initialized automatically with 3 active windows\r\n");

static mut BACK_BUFFER: [u8; 800 * 600 * 4] = [0; 800 * 600 * 4];
let back_buf = unsafe { &mut *core::ptr::addr_of_mut!(BACK_BUFFER) };
Expand All @@ -221,13 +221,8 @@ pub extern "C" fn userspace_entry() -> ! {
gpu_accel: true,
};

serial_write_str("AWEOS: Entering interactive AWE-Compositor Main Event Loop...\r\n");

let done_msg = b"AWEOS: userspace execution completed cleanly!\r\n";
context.dispatch(
8,
[done_msg.as_ptr() as u64, done_msg.len() as u64, 0, 0, 0, 0],
);
sys_log(b"AWEOS: Entering interactive AWE-Compositor Main Event Loop...\r\n");
sys_log(b"AWEOS: userspace execution completed cleanly!\r\n");

let mut tick = 0u64;
loop {
Expand All @@ -251,7 +246,8 @@ pub unsafe fn enter_userspace(user_rip: u64, user_rsp: u64) {

let user_cs = USER_CODE_SELECTOR as u64;
let user_ss = USER_DATA_SELECTOR as u64;
let rflags = 0x3202u64; // IOPL = 3 + IF = 1
// RFLAGS = 0x0202 (IF = 1, IOPL = 0) to enforce strict Ring 3 privilege isolation.
let rflags = 0x0202u64;

unsafe {
core::arch::asm!(
Expand Down
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