diff --git a/include/mm/heap.h b/include/mm/heap.h
new file mode 100644
index 0000000..96f2287
--- /dev/null
+++ b/include/mm/heap.h
@@ -0,0 +1,19 @@
+#ifndef _HEAP_H
+#define _HEAP_H
+
+#include <types.h>
+
+#define HEAP_START 0xC0000000
+#define HEAP_SIZE  (1024 * 4096) /* 1MB heap */
+
+void heap_init(void);
+
+void* malloc(size_t size);
+void* malloc_aligned(size_t size, size_t alignment);
+
+void* calloc(size_t nmemb, size_t size);
+void* realloc(void* ptr, size_t size);
+
+void free(void* ptr);
+
+#endif
diff --git a/include/mm/mm.h b/include/mm/mm.h
new file mode 100644
index 0000000..acbdfee
--- /dev/null
+++ b/include/mm/mm.h
@@ -0,0 +1,8 @@
+#ifndef _MM_H
+#define _MM_H
+
+#include <mm/pmm.h>
+#include <mm/heap.h>
+#include <mm/paging.h>
+
+#endif
diff --git a/include/mm/paging.h b/include/mm/paging.h
new file mode 100644
index 0000000..d6152b7
--- /dev/null
+++ b/include/mm/paging.h
@@ -0,0 +1,9 @@
+#ifndef _PAGING_H
+#define _PAGING_H
+
+#include <types.h>
+
+void paging_init(void);
+void map_page(void* phys, void* virt);
+
+#endif
diff --git a/include/mm/pmm.h b/include/mm/pmm.h
new file mode 100644
index 0000000..e59ea60
--- /dev/null
+++ b/include/mm/pmm.h
@@ -0,0 +1,11 @@
+#ifndef _PMM_H
+#define _PMM_H
+
+#include <stdint.h>
+#include <multiboot.h>
+
+void pmm_init(multiboot_info_t* mb_info);
+void* alloc_page(void);
+void free_page(void* ptr);
+
+#endif