michaelkuc6/blog_os
1
0
Fork 0
mirror of https://github.com/phil-opp/blog_os.git synced 2025-12-16 06:17:49 +00:00
Code Issues Projects Releases Wiki Activity

Use the BootInfo struct passed by the bootloader

Browse Source
This commit is contained in:
Philipp Oppermann
2019-01-28 11:24:16 +01:00
parent 818417d119
commit 741224411b
1 changed files with 5 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/main.rs
View File

@@ -3,11 +3,13 @@
#![cfg_attr(test, allow(unused_imports))]
use blog_os::println;
use bootloader::{bootinfo::BootInfo, entry_point};
use core::panic::PanicInfo;
entry_point!(kernel_main);
#[cfg(not(test))]
#[no_mangle]
pub extern "C" fn _start() -> ! {
fn kernel_main(boot_info: &'static BootInfo) -> ! {
use blog_os::interrupts::PICS;
use blog_os::memory::{self, create_example_mapping, EmptyFrameAllocator};
@@ -18,8 +20,7 @@ pub extern "C" fn _start() -> ! {
unsafe { PICS.lock().initialize() };
x86_64::instructions::interrupts::enable();
const LEVEL_4_TABLE_ADDR: usize = 0o_177777_777_777_777_777_0000;
let mut recursive_page_table = unsafe { memory::init(LEVEL_4_TABLE_ADDR) };
let mut recursive_page_table = unsafe { memory::init(boot_info.p4_table_addr as usize) };
create_example_mapping(&mut recursive_page_table, &mut EmptyFrameAllocator);
unsafe { (0xdeadbeaf900 as *mut u64).write_volatile(0xf021f077f065f04e) };