1 files changed, 60 insertions, 3 deletions

diff --git a/softmmu/memory.c b/softmmu/memory.c
index 2cb823c642..5e69624f7f 100644
--- a/softmmu/memory.c
+++ b/softmmu/memory.c
@@ -3322,20 +3322,77 @@ static void mtree_info_flatview(bool dispatch_tree, bool owner)
     g_hash_table_unref(views);
 }
 
+struct AddressSpaceInfo {
+    MemoryRegionListHead *ml_head;
+    bool owner;
+    bool disabled;
+};
+
+/* Returns negative value if a < b; zero if a = b; positive value if a > b. */
+static gint address_space_compare_name(gconstpointer a, gconstpointer b)
+{
+    const AddressSpace *as_a = a;
+    const AddressSpace *as_b = b;
+
+    return g_strcmp0(as_a->name, as_b->name);
+}
+
+static void mtree_print_as_name(gpointer data, gpointer user_data)
+{
+    AddressSpace *as = data;
+
+    qemu_printf("address-space: %s\n", as->name);
+}
+
+static void mtree_print_as(gpointer key, gpointer value, gpointer user_data)
+{
+    MemoryRegion *mr = key;
+    GSList *as_same_root_mr_list = value;
+    struct AddressSpaceInfo *asi = user_data;
+
+    g_slist_foreach(as_same_root_mr_list, mtree_print_as_name, NULL);
+    mtree_print_mr(mr, 1, 0, asi->ml_head, asi->owner, asi->disabled);
+    qemu_printf("\n");
+}
+
+static gboolean mtree_info_as_free(gpointer key, gpointer value,
+                                   gpointer user_data)
+{
+    GSList *as_same_root_mr_list = value;
+
+    g_slist_free(as_same_root_mr_list);
+
+    return true;
+}
+
 static void mtree_info_as(bool dispatch_tree, bool owner, bool disabled)
 {
     MemoryRegionListHead ml_head;
     MemoryRegionList *ml, *ml2;
     AddressSpace *as;
+    GHashTable *views = g_hash_table_new(g_direct_hash, g_direct_equal);
+    GSList *as_same_root_mr_list;
+    struct AddressSpaceInfo asi = {
+        .ml_head = &ml_head,
+        .owner = owner,
+        .disabled = disabled,
+    };
 
     QTAILQ_INIT(&ml_head);
 
     QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
-        qemu_printf("address-space: %s\n", as->name);
-        mtree_print_mr(as->root, 1, 0, &ml_head, owner, disabled);
-        qemu_printf("\n");
+        /* Create hashtable, key=AS root MR, value = list of AS */
+        as_same_root_mr_list = g_hash_table_lookup(views, as->root);
+        as_same_root_mr_list = g_slist_insert_sorted(as_same_root_mr_list, as,
+                                                     address_space_compare_name);
+        g_hash_table_insert(views, as->root, as_same_root_mr_list);
     }
 
+    /* print address spaces */
+    g_hash_table_foreach(views, mtree_print_as, &asi);
+    g_hash_table_foreach_remove(views, mtree_info_as_free, 0);
+    g_hash_table_unref(views);
+
     /* print aliased regions */
     QTAILQ_FOREACH(ml, &ml_head, mrqueue) {
         qemu_printf("memory-region: %s\n", memory_region_name(ml->mr));