From 959a93e653684b1ed8db4bd21eaca9831e372fb0 Mon Sep 17 00:00:00 2001 From: Tianhao Wang Date: Wed, 29 May 2024 01:18:02 +0200 Subject: multiboot: basic support for multiboot info well, it's not trivial to use bios function because thanks to grub + multiboot, we are already in protected mode when the startup code takes control. Also the MB info is easier to play with than BIOS (or ACPI) Signed-off-by: Tianhao Wang --- src/lib.rs | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'src/lib.rs') diff --git a/src/lib.rs b/src/lib.rs index 759c7c0..3651a81 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -8,13 +8,13 @@ mod ds; mod io; mod machine; mod mm; +use crate::machine::key::Modifiers; use arch::x86_64::interrupt; use arch::x86_64::interrupt::pic_8259; use arch::x86_64::interrupt::pic_8259::PicDeviceInt; use core::panic::PanicInfo; use machine::cgascr::CGAScreen; - -use crate::machine::key::Modifiers; +use machine::multiboot; #[cfg(not(test))] #[panic_handler] @@ -28,14 +28,18 @@ pub extern "C" fn _entry() -> ! { // init code io::set_attr(0x1f); io::clear_screen(); + assert!(multiboot::check_magic(), "bad multiboot magic!"); + let mbi = multiboot::get_mb_info().expect("bad multiboot info flags"); + println!("MB INFO: {:#X?}", mbi); interrupt::init(); pic_8259::allow(PicDeviceInt::KEYBOARD); interrupt::interrupt_enable(); - io::print_welcome(); let mut framemap = mm::pma::FMap::new(); framemap.init(); println!("Bitmap starting from : {:p}", framemap.bm.as_ptr()); println!("Skip first {} bytes", framemap.skip_byte); + println!("system init .. done!"); + // io::print_welcome(); // busy loop query keyboard loop { -- cgit v1.2.3-70-g09d2