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Initialize the PIC

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This commit is contained in:
Philipp Oppermann
2019-01-25 14:04:55 +01:00
parent d8edfccca4
commit 6504bed810
4 changed files with 29 additions and 7 deletions
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16
Cargo.lock generated
View File

@@ -31,6 +31,7 @@ dependencies = [
"array-init 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
"bootloader 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"pic8259_simple 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"spin 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
"uart_16550 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"volatile 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -49,6 +50,11 @@ dependencies = [
"xmas-elf 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "cpuio"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "fixedvec"
version = "0.2.3"
@@ -107,6 +113,14 @@ name = "os_bootinfo"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "pic8259_simple"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cpuio 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "pulldown-cmark"
version = "0.0.3"
@@ -271,6 +285,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum bit_field 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ed8765909f9009617974ab6b7d332625b320b33c326b1e9321382ef1999b5d56"
"checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
"checksum bootloader 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)" = "2b498d7168288f3667f80aee93b4894e355dfce867803e1ccd5d9ee42a0b0e1a"
"checksum cpuio 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "22b8e308ccfc5acf3b82f79c0eac444cf6114cb2ac67a230ca6c177210068daa"
"checksum fixedvec 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7c6c16d316ccdac21a4dd648e314e76facbbaf316e83ca137d0857a9c07419d0"
"checksum font8x8 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b81d84c3c978af7d05d31a2198af4b9ba956d819d15d8f6d58fc150e33f8dc1f"
"checksum fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
@@ -280,6 +295,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)" = "e962c7641008ac010fa60a7dfdc1712449f29c44ef2d4702394aea943ee75047"
"checksum nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9667ddcc6cc8a43afc9b7917599d7216aa09c463919ea32c59ed6cac8bc945"
"checksum os_bootinfo 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "66481dbeb5e773e7bd85b63cd6042c30786f834338288c5ec4f3742673db360a"
"checksum pic8259_simple 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dc64b2fd10828da8521b6cdabe0679385d7d2a3a6d4c336b819d1fa31ba35c72"
"checksum pulldown-cmark 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8361e81576d2e02643b04950e487ec172b687180da65c731c03cf336784e6c07"
"checksum rand 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "dee497e66d8d76bf08ce20c8d36e16f93749ab0bf89975b4f8ae5cee660c2da2"
"checksum rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6fdeb83b075e8266dcc8762c22776f6877a63111121f5f8c7411e5be7eed4b"

1
Cargo.toml
View File

@@ -11,6 +11,7 @@ spin = "0.4.9"
array-init = "0.0.3"
uart_16550 = "0.1.0"
x86_64 = "0.3.5"
pic8259_simple = "0.1.1"
[dependencies.lazy_static]
version = "1.0"

8
src/interrupts.rs
View File

@@ -6,6 +6,14 @@
use crate::{gdt, println};
use lazy_static::lazy_static;
use x86_64::structures::idt::{ExceptionStackFrame, InterruptDescriptorTable};
use pic8259_simple::ChainedPics;
use spin;
pub const PIC_1_OFFSET: u8 = 32;
pub const PIC_2_OFFSET: u8 = PIC_1_OFFSET + 8;
pub static PICS: spin::Mutex<ChainedPics> =
spin::Mutex::new(unsafe { ChainedPics::new(PIC_1_OFFSET, PIC_2_OFFSET) });
lazy_static! {
static ref IDT: InterruptDescriptorTable = {

11
src/main.rs
View File

@@ -8,22 +8,19 @@ use core::panic::PanicInfo;
#[cfg(not(test))]
#[no_mangle]
pub extern "C" fn _start() -> ! {
use blog_os::interrupts::PICS;
println!("Hello World{}", "!");
blog_os::gdt::init();
blog_os::interrupts::init_idt();
fn stack_overflow() {
stack_overflow(); // for each recursion, the return address is pushed
}
// trigger a stack overflow
stack_overflow();
unsafe { PICS.lock().initialize() };
println!("It did not crash!");
loop {}
}
/// This function is called on panic.
#[cfg(not(test))]
#[panic_handler]