1 files changed, 12 insertions, 5 deletions
diff --git a/hw/i386/e820_memory_layout.c b/hw/i386/e820_memory_layout.c
index 06970ac44a..3e848fb69c 100644
--- a/hw/i386/e820_memory_layout.c
+++ b/hw/i386/e820_memory_layout.c
@@ -11,22 +11,29 @@
 #include "e820_memory_layout.h"
 
 static size_t e820_entries;
-struct e820_entry *e820_table;
+static struct e820_entry *e820_table;
+static gboolean e820_done;
 
-int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
+void e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
 {
+    assert(!e820_done);
+
     /* new "etc/e820" file -- include ram and reserved entries */
     e820_table = g_renew(struct e820_entry, e820_table, e820_entries + 1);
     e820_table[e820_entries].address = cpu_to_le64(address);
     e820_table[e820_entries].length = cpu_to_le64(length);
     e820_table[e820_entries].type = cpu_to_le32(type);
     e820_entries++;
-
-    return e820_entries;
 }
 
-int e820_get_num_entries(void)
+int e820_get_table(struct e820_entry **table)
 {
+    e820_done = true;
+
+    if (table) {
+        *table = e820_table;
+    }
+
     return e820_entries;
 }