refactor: unsafe only in adapter + libkos; forbid(unsafe_code) everywhere else; libkos Window (volatile, bounds-checked MMIO/DMA/shared mem), entry!, thread::spawn; MapRegion returns pages; kernel const-built (with_cores/install_platform); newtype addrs

crates/servers/input-server/src/adapters/mod.rs

@@ -1,2 +1 @@
 pub mod mock;
-pub mod qemu_uart;

crates/servers/input-server/src/adapters/qemu_uart.rs

@@ -1,47 +0,0 @@
-use port_input_device::{InputDevice, InputEvent, Key};
-
-const UART_BASE: usize = 0x10000000;
-const UART_LSR: usize = 5;
-
-pub struct UartInputDevice {
-    base: usize,
-}
-
-impl UartInputDevice {
-    pub fn new() -> Self {
-        Self { base: UART_BASE }
-    }
-
-    fn read_byte(&self) -> Option<u8> {
-        let lsr = unsafe { core::ptr::read_volatile((self.base + UART_LSR) as *const u8) };
-        if lsr & 1 != 0 {
-            Some(unsafe { core::ptr::read_volatile(self.base as *const u8) })
-        } else {
-            None
-        }
-    }
-
-    fn byte_to_key(byte: u8) -> Key {
-        match byte {
-            b'w' | b'W' => Key::Up,
-            b's' | b'S' => Key::Down,
-            b'a' | b'A' => Key::Left,
-            b'd' | b'D' => Key::Right,
-            b'\r' | b'\n' => Key::Enter,
-            0x1B => Key::Escape,
-            c => Key::Char(c),
-        }
-    }
-}
-
-impl InputDevice for UartInputDevice {
-    fn poll(&mut self) -> Option<InputEvent> {
-        let byte = self.read_byte()?;
-        Some(InputEvent::KeyDown(Self::byte_to_key(byte)))
-    }
-
-    fn has_event(&self) -> bool {
-        let lsr = unsafe { core::ptr::read_volatile((self.base + UART_LSR) as *const u8) };
-        lsr & 1 != 0
-    }
-}

crates/servers/input-server/src/lib.rs

@@ -1,4 +1,5 @@
 #![no_std]
+#![forbid(unsafe_code)]
 
 pub mod adapters;
 pub mod protocol;
@@ -9,10 +10,7 @@ pub mod server;
 mod tests;
 
 pub fn run() -> ! {
-    #[cfg(feature = "qemu-virt")]
-    let device = adapters::qemu_uart::UartInputDevice::new();
-
-    #[cfg(not(feature = "qemu-virt"))]
+    // The real devices are driven by bins/input-qemu.
     let device = adapters::mock::MockInputDevice::new();
 
     let mut srv = server::InputServer::new(device);

crates/servers/input-server/src/main.rs

@@ -1,9 +1,11 @@
 #![no_std]
+#![forbid(unsafe_code)]
 #![no_main]
 
 extern crate libkos;
 
-#[unsafe(no_mangle)]
-extern "C" fn main() {
+libkos::entry!(main);
+
+fn main() {
     input_server::run();
 }