1 files changed, 27 insertions, 0 deletions
diff --git a/kernel/mm/physical_mm/physical_mm.c b/kernel/mm/physical_mm/physical_mm.c
new file mode 100644
index 0000000..ed7a9ac
--- /dev/null
+++ b/kernel/mm/physical_mm/physical_mm.c
@@ -0,0 +1,27 @@
+/* Bitmap Based Allocation:
+ * https://web.archive.org/web/20190316115948/http://www.brokenthorn.com/Resources/OSDev17.html
+ */
+
+#include <stdint.h>
+
+#include <libk/stdio.h>
+
+#include <mm/memory_map.h>
+#include <mm/physical_mm.h>
+
+extern uint32_t kernel_start;
+extern uint32_t kernel_end;
+
+void
+physical_mm_init(void)
+{
+  free_memory_regions_t *free_memory_regions = memory_map_get_free_regions();
+  for (int i = 0; i < free_memory_regions->n_regions; i++)
+    printk("Kernel",
+           "start: 0x%.08x | length: 0x%.08x",
+           free_memory_regions->region_list[i]->addr_low,
+           free_memory_regions->region_list[i]->len_low);
+
+  printk("physical_mm", "Kernel starts at: 0x%x", &kernel_start);
+  printk("physical_mm", "Kernel ends at: 0x%x", &kernel_end);
+}