made the jump to ring 3

2026-06-16 21:53:38 -04:00
parent 171cbd21bc
commit 0cb7311911
4 changed files with 35 additions and 278 deletions
--- a/kernel/kmain.c
+++ b/kernel/kmain.c
@@ -86,6 +86,11 @@ void load_origin_program(multiboot_info* mbi) {
  map_page(0xBFFFF000, stack_paddr, PAGE_PRESENT | PAGE_WRITABLE | PAGE_USER);

  kprintf("program loaded into memory @ [virt] 0x%x\n", elf->e_entry);
+
+  extern void liftoff(uint32_t entry, uint32_t stack_top);
+  kprintf("launching origin process");
+  uint32_t stack_top =  0xBFFFF000 + 4095;
+  liftoff(elf->e_entry, stack_top);
 }

 void kmain(uint32_t magic, multiboot_info* mbi)  {