void init_memory(void *boot_tables) {
struct multiboot_info *mb = boot_tables;
kheap_install((struct kheap_metadata*)KHEAP_PHYS_ROOT, PAGE_SIZE);
physical_allocator_init(mb->mem_upper + mb->mem_lower);
page_frame_t unused(pft) = kernel_page_table_install(mb);
}
/* This is the entry point to the bulk of the kernel.
* @mb is a pointer to a <multiboot_info> structure which has important
* information about the layout of memory which is passed along from the
* bootloader.
* First, the kernel sets up the <gdt> or Global Descriptor Table which
* describes the layout of memory.
* Next, it installs the <idt> or interrupt descriptor table, which declares
* which interrupts are available, and whether they can be accessed from user
* mode.
* After the basic CPU state has been initialized, logging and the VGA terminal
* are initialized, and the kernel heap is installed. Next, the physical memory
* allocator and the keyboard drivers are initialized. Note that the kernel
* heap must be initialized before the physical memory allocator since certain
* parts of the allocator live on the heap. Finally the init process page table
* is created, and multi-processing is initialized.
* @return this function should never return.
*/
void kernel_main(struct multiboot_info *mb) {
gdt_install();
idt_install();
terminal_initialize();
initialize_klog();
kheap_install((struct kheap_metadata*)KHEAP_PHYS_ROOT, PAGE_SIZE);
physical_allocator_init(mb->mem_upper + mb->mem_lower);
keyboard_install();
char *hi = "Hello kernel!\n";
void *testing = kmalloc(16);
memcpy(testing, hi, 16);
kputs(testing);
klog(testing);
kfree(testing);
(void)kernel_page_table_install(mb);
proc_init();
struct process *worker_proc = create_proc(worker);
schedule_proc(worker_proc);
while (1) {
klog("kernel\n");
}
}