@gz merged rust-cpuid PR so i can get rid of my fork

kernel-rs/.gitmodules

@@ -4,6 +4,3 @@
 [submodule "x86"]
 	path = x86
 	url = https://github.com/jzck/x86.git
-[submodule "rust-cpuid"]
-	path = rust-cpuid
-	url = https://github.com/jzck/rust-cpuid

kernel-rs/Cargo.toml

@@ -13,10 +13,12 @@ spin = "0.4"
 slab_allocator = "0.3.1"
 multiboot2 = { path = "multiboot2-elf64" }		# added rsdp tag
 x86 = { path = "x86" }							# forked for IA32
-raw-cpuid = { path = "rust-cpuid" }				# forked for IA32
+
+[dependencies.raw-cpuid]
+# need to use github/master because of features not yet on crates.io
+git = "https://github.com/gz/rust-cpuid"
+features = ["nightly"]
 
 [dependencies.lazy_static]
 version = "1.0.0"
 features = ["spin_no_std"]
-
-

kernel-rs/rust-cpuid

@@ -1 +0,0 @@
-Subproject commit 07299b93df57fcee2b6aec61502a5135b99967f8

kernel-rs/src/arch/mod.rs

@@ -1 +1,3 @@
+// we only support a single architecture at the moment
+// more specifically IA-32 (aka i386) but we name it x86 here.
 pub mod x86;

kernel-rs/src/arch/x86/interrupt/exception.rs

@@ -1,9 +1,13 @@
 // https://wiki.osdev.org/Exceptions
 
+use ::arch::x86::pti;
+
 macro_rules! exception {
     ($name:ident, $func:block) => {
         pub extern "x86-interrupt" fn $name(stack_frame: &mut ExceptionStackFrame)
         {
+            // unsafe { pti::map(); }
+
             println!("Exception: {}", stringify!($name));
             println!("{:#?}", stack_frame);
             flush!();
@@ -13,6 +17,8 @@ macro_rules! exception {
                 $func
             }
             inner(stack_frame);
+
+            // unsafe { pti::unmap(); }
         }
     }
 }
@@ -37,13 +43,13 @@ macro_rules! exception_err {
 
 use x86::structures::idt::*;
 
-exception!(divide_by_zero, {});
+exception!(divide_by_zero, {
+    panic!("CPU exception: division by zero");
+});
+
 exception!(debug, {});
 exception!(non_maskable, {});
-exception!(breakpoint, {
-    println!("testing here dont mind me");
-    flush!();
-});
+exception!(breakpoint, {});
 exception!(overflow, {});
 exception!(bound_range, {});
 exception!(invalid_opcode, {});

kernel-rs/src/arch/x86/mod.rs

@@ -4,6 +4,7 @@ extern crate x86;
 pub mod paging;
 pub mod interrupt;
 pub mod device;
+pub mod pti;
 
 pub mod idt;
 

kernel-rs/src/console.rs

@@ -20,7 +20,7 @@ fn dispatch(command: &str) -> Result <(), &'static str> {
         "reboot"                    => self::reboot(),
         "shutdown" | "halt" | "q"   => self::shutdown(),
 
-        // others
+        // x86 specific
         "stack"                     => self::print_stack(),
         "regs"                      => self::regs(),
         "cpu"                       => self::cpu(),
@@ -117,7 +117,6 @@ fn print_line(line: &[u8], address: usize) {
 }
 
 /// Print the kernel stack
-///
 fn print_stack() -> Result <(), &'static str> {
     let esp: usize;
     let ebp: usize;
@@ -130,7 +129,7 @@ fn print_stack() -> Result <(), &'static str> {
 }
 
 // fn mb2_memory() -> Result <(), &'static str> {
-//     let boot_info = context::boot_info();
+//     let boot_info = ::multiboot2::boot_info();
 
 //     let memory_map_tag = boot_info.memory_map_tag()
 //         .expect("Memory map tag required");
@@ -144,7 +143,7 @@ fn print_stack() -> Result <(), &'static str> {
 // }
 
 // fn mb2_sections() -> Result <(), &'static str> {
-//     let boot_info = context::boot_info();
+//     let boot_info = ::multiboot2::boot_info();
 
 //     let elf_sections_tag = boot_info.elf_sections_tag()
 //         .expect("Elf-sections tag required");
@@ -178,15 +177,17 @@ pub fn acpi_info() -> Result <(), &'static str> {
     Ok(())
 }
 
+/// Dump control registers
 pub fn regs() -> Result <(), &'static str> {
     use ::x86::registers::control::*;
-    println!("cr0={:#b}", Cr0::read());
+    println!("cr0 = {:?}", Cr0::read());
     println!("cr3 = {:?}", Cr3::read());
     println!("cr4 = {:?}", Cr4::read());
     flush!();
     Ok(())
 }
 
+/// Dump cpu info, should add power management info
 pub fn cpu() -> Result <(), &'static str> {
     use ::arch::x86::device::cpu;
     cpu::cpu_info().expect("cpu info not available");

kernel-rs/src/keyboard.rs

@@ -91,11 +91,6 @@ pub fn kbd_callback() {
                         0x2A | 0x36 => {SHIFT = !is_release},
                         0x38 => {ALT = !is_release},
                         0x1D => {CTRL = !is_release},
-                        // terminal switching
-                        // 0x0F if !is_release => {
-                        //     context::switch_term();
-                        //     context::current_term().flush();
-                        // },
                         0x0E if !is_release => {
                             vga::VGA.backspace();
                         }

kernel-rs/src/lib.rs

@@ -1,23 +1,25 @@
 //! project hosted on [github](https://github.com/jzck/kernel)
-//! exclusively x86
-//!
+
+// nightly stuff we need
 #![no_std]
 #![feature(lang_items)]
 #![feature(const_fn)]
 #![feature(ptr_internals)]
 #![feature(asm)]
+#![feature(thread_local)]
 
+// home made heap
 #![feature(alloc)]
 #![feature(allocator_api)]
 #![feature(global_allocator)]
 
+// x86 specific
 #![feature(abi_x86_interrupt)]
 
 extern crate rlibc;
-// #[macro_use]
 extern crate alloc;
-#[macro_use] extern crate lazy_static;
 extern crate spin;
+#[macro_use] extern crate lazy_static;
 extern crate multiboot2;
 extern crate slab_allocator;
 extern crate raw_cpuid;