map.c

void paging_map_all_phys(size_t bytes)
{
	uintptr_t virt = 0xffffea0000000000;
	decomposed_addr_t decAddr;
	memcpy(&decAddr, &virt, sizeof(decomposed_addr_t));
	uint64_t* entry = &current_pml4->entries[decAddr.pml4];
	PML3* pml3 = NULL;
	/* If its present, use that pml3 */
	if(*entry & 1) {
		pml3 = (PML3*)(*entry & 0x0FFFFFFFFFFFF000);
	}
	else { /* Else create one */
		pml3 = (PML3*)&pdptphysical_map;
		memset(pml3, 0, sizeof(PML3));
		*entry = make_pml4e((uint64_t)pml3, 0, 0, 0, 0, 1, 1);
	}
	for(size_t i = 0; i < 512; i++)
	{
		entry = &pml3->entries[i];
		*entry = make_pml3e(i * 0x40000000, 1, 0, 1, 0, 0, 0, 1, 1);
		*entry |= (1 << 7);
		__native_tlb_invalidate_page((void*)(virt + i * 0x40000000));
	}
	asm volatile("mov %cr3, %rax;mov %rax, %cr3");
}