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diff --git a/qemu/roms/seabios/src/memmap.h b/qemu/roms/seabios/src/memmap.h
new file mode 100644
index 000000000..7bda56e2b
--- /dev/null
+++ b/qemu/roms/seabios/src/memmap.h
@@ -0,0 +1,29 @@
+#ifndef __E820MAP_H
+#define __E820MAP_H
+
+#include "types.h" // u64
+
+#define E820_RAM          1
+#define E820_RESERVED     2
+#define E820_ACPI         3
+#define E820_NVS          4
+#define E820_UNUSABLE     5
+#define E820_HOLE         ((u32)-1) // Useful for removing entries
+
+struct e820entry {
+    u64 start;
+    u64 size;
+    u32 type;
+};
+
+void add_e820(u64 start, u64 size, u32 type);
+void memmap_prepboot(void);
+
+// A typical OS page size
+#define PAGE_SIZE 4096
+
+// e820 map storage
+extern struct e820entry e820_list[];
+extern int e820_count;
+
+#endif // e820map.h