void kmain(unsigned int magic, BOOTINFO *info)
{
kcls();
if(magic != 0x2BADB002){
kprintf("Invalid Boot Loader Magic (0x%x)\n", magic);
}
kprintf("Hello My OS\n");
display_bootinfo(info);
set_gdtr();
kprintf("Initialized GDT\n");
set_idtr();
kprintf("Initialized IDT\n");
initialize_PIC();
kprintf("Initialized PIC\n");
io_out8(PIC_MASTER_IMR, 0xF8);
initialize_pysical_memory();
kprintf("Main Loop\n");
for(;;){
io_hlt();
}
}
static void segmem_init()
{
gdt_reg_t gdtr;
seg_desc_t *gdt;
sys64_seg_desc_t *tss;
gdt = info->vmm.cpu.sg->gdt;
gdt[0].raw = null_desc;
gdt[vmm_code_seg_idx].raw = code64_desc;
gdt[vmm_data_seg_idx].raw = data32_desc;
tss = (sys64_seg_desc_t*)&gdt[vmm_tss_seg_idx];
tss64_desc(tss, (offset_t)&info->vmm.cpu.sg->tss);
gdtr.desc = gdt;
gdtr.limit = sizeof(info->vmm.cpu.sg->gdt) - 1;
set_gdtr(gdtr);
set_tr(vmm_tss_sel);
segmem_reload(vmm_code_sel, vmm_data_sel);
}
