Interface cleanup

src/kernel/memory/memory.c

@@ -0,0 +1,30 @@
+#include <memory.h>
+#include <multiboot.h>
+#include <debug.h>
+
+void memory_init()
+{
+  uintptr_t start, end;
+  uint32_t type, i = 0;
+  debug_info("Parsing memory map\n");
+  while(!multiboot_get_memory_area(i++, &start, &end, &type))
+  {
+    debug("0x%016x-0x%016x (%d)\n", start, end, type);
+    for(uintptr_t p = start; p < end; p += PAGE_SIZE)
+    {
+      if(p >= V2P(&kernel_start) && p < V2P(&kernel_end))
+        continue;
+
+      uintptr_t page = vmm_get_page(&BootP4, (uintptr_t)P2V(p));
+      if(page == (uintptr_t)-1 || !(page & PAGE_PRESENT))
+      {
+        uint16_t flags = PAGE_GLOBAL | PAGE_HUGE | PAGE_WRITE;
+        touch_page(&BootP4, (uintptr_t)P2V(p), flags);
+        vmm_set_page(&BootP4, (uintptr_t)P2V(p), p, flags | PAGE_PRESENT);
+      }
+
+      if(type == MMAP_FREE)
+        pmm_free(p);
+    }
+  }
+}