From 0921a33fc9f3724cb36a03a24b58b0a5bfc519b1 Mon Sep 17 00:00:00 2001 From: Alex Auvolat Date: Mon, 1 Dec 2014 17:24:38 +0100 Subject: Advance HH, GDT, IDT (details below) - Implement higher-half in loader with paging (using 4Mb pages) - Add GDT installation code - Add IDT installation code (spend a loong time debugging the ISRs!) - Add CDROM generation scripts - Add scripts to launch bochs (debug) and qemu (debug) --- kernel/l0/kmain.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'kernel/l0/kmain.c') diff --git a/kernel/l0/kmain.c b/kernel/l0/kmain.c index 74945e4..854a2b7 100644 --- a/kernel/l0/kmain.c +++ b/kernel/l0/kmain.c @@ -2,6 +2,9 @@ #include #include #include + +#include +#include void kmain(struct multiboot_info_t *mbd, int32_t mb_magic) { dbglog_setup(); @@ -9,6 +12,19 @@ void kmain(struct multiboot_info_t *mbd, int32_t mb_magic) { dbg_printf("Hello, kernel World!\n"); dbg_printf("This is %s, version %s.\n", OS_NAME, OS_VERSION); + ASSERT(mb_magic == MULTIBOOT_BOOTLOADER_MAGIC); + + gdt_init(); dbg_printf("GDT set up.\n"); + + idt_init(); dbg_printf("IDT set up.\n"); + + asm volatile("int $0x3"); + + size_t total_ram = ((mbd->mem_upper + mbd->mem_lower) * 1024); + dbg_printf("Total ram: %d Kb\n", total_ram / 1024); + // paging_init(totalRam); + PANIC("Reached kmain end! Falling off the edge."); } +/* vim: set ts=4 sw=4 tw=0 noet :*/ -- cgit v1.2.3