michaelkuc6/blog_os
1
0
Fork 0
mirror of https://github.com/phil-opp/blog_os.git synced 2025-12-17 06:47:49 +00:00
Code Issues Projects Releases Wiki Activity

Create example mapping for page 0x1000

Browse Source
This commit is contained in:
Philipp Oppermann
2019-01-28 11:19:46 +01:00
parent 5d807ee622
commit f272785861
2 changed files with 31 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/main.rs
View File

@@ -9,7 +9,7 @@ use core::panic::PanicInfo;
#[no_mangle]
pub extern "C" fn _start() -> ! {
use blog_os::interrupts::PICS;
use blog_os::memory::{self, translate_addr};
use blog_os::memory::{self, create_example_mapping, EmptyFrameAllocator};
println!("Hello World{}", "!");
@@ -19,16 +19,10 @@ pub extern "C" fn _start() -> ! {
x86_64::instructions::interrupts::enable();
const LEVEL_4_TABLE_ADDR: usize = 0o_177777_777_777_777_777_0000;
let recursive_page_table = unsafe { memory::init(LEVEL_4_TABLE_ADDR) };
// the identity-mapped vga buffer page
println!("0xb8000 -> {:?}", translate_addr(0xb8000, &recursive_page_table));
// some code page
println!("0x20010a -> {:?}", translate_addr(0x20010a, &recursive_page_table));
// some stack page
println!("0x57ac001ffe48 -> {:?}", translate_addr(0x57ac001ffe48,
&recursive_page_table));
let mut recursive_page_table = unsafe { memory::init(LEVEL_4_TABLE_ADDR) };
create_example_mapping(&mut recursive_page_table, &mut EmptyFrameAllocator);
unsafe { (0x1900 as *mut u64).write_volatile(0xf021f077f065f04e) };
println!("It did not crash!");
blog_os::hlt_loop();