3 files changed, 24 insertions, 26 deletions

diff --git a/backends/hostmem-file.c b/backends/hostmem-file.c
index e319ec1ad8..134b08d63a 100644
--- a/backends/hostmem-file.c
+++ b/backends/hostmem-file.c
@@ -31,7 +31,6 @@ typedef struct HostMemoryBackendFile HostMemoryBackendFile;
 struct HostMemoryBackendFile {
     HostMemoryBackend parent_obj;
 
-    bool share;
     bool discard_data;
     char *mem_path;
     uint64_t align;
@@ -59,7 +58,7 @@ file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
         path = object_get_canonical_path(OBJECT(backend));
         memory_region_init_ram_from_file(&backend->mr, OBJECT(backend),
                                  path,
-                                 backend->size, fb->align, fb->share,
+                                 backend->size, fb->align, backend->share,
                                  fb->mem_path, errp);
         g_free(path);
     }
@@ -86,25 +85,6 @@ static void set_mem_path(Object *o, const char *str, Error **errp)
     fb->mem_path = g_strdup(str);
 }
 
-static bool file_memory_backend_get_share(Object *o, Error **errp)
-{
-    HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
-
-    return fb->share;
-}
-
-static void file_memory_backend_set_share(Object *o, bool value, Error **errp)
-{
-    HostMemoryBackend *backend = MEMORY_BACKEND(o);
-    HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
-
-    if (host_memory_backend_mr_inited(backend)) {
-        error_setg(errp, "cannot change property value");
-        return;
-    }
-    fb->share = value;
-}
-
 static bool file_memory_backend_get_discard_data(Object *o, Error **errp)
 {
     return MEMORY_BACKEND_FILE(o)->discard_data;
@@ -171,9 +151,6 @@ file_backend_class_init(ObjectClass *oc, void *data)
     bc->alloc = file_backend_memory_alloc;
     oc->unparent = file_backend_unparent;
 
-    object_class_property_add_bool(oc, "share",
-        file_memory_backend_get_share, file_memory_backend_set_share,
-        &error_abort);
     object_class_property_add_bool(oc, "discard-data",
         file_memory_backend_get_discard_data, file_memory_backend_set_discard_data,
         &error_abort);
diff --git a/backends/hostmem-ram.c b/backends/hostmem-ram.c
index 38977be73e..7ddd08d370 100644
--- a/backends/hostmem-ram.c
+++ b/backends/hostmem-ram.c
@@ -28,8 +28,8 @@ ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
     }
 
     path = object_get_canonical_path_component(OBJECT(backend));
-    memory_region_init_ram_nomigrate(&backend->mr, OBJECT(backend), path,
-                           backend->size, errp);
+    memory_region_init_ram_shared_nomigrate(&backend->mr, OBJECT(backend), path,
+                           backend->size, backend->share, errp);
     g_free(path);
 }
 
diff --git a/backends/hostmem.c b/backends/hostmem.c
index 81d14554a7..8aa0412032 100644
--- a/backends/hostmem.c
+++ b/backends/hostmem.c
@@ -368,6 +368,24 @@ static void set_id(Object *o, const char *str, Error **errp)
     backend->id = g_strdup(str);
 }
 
+static bool host_memory_backend_get_share(Object *o, Error **errp)
+{
+    HostMemoryBackend *backend = MEMORY_BACKEND(o);
+
+    return backend->share;
+}
+
+static void host_memory_backend_set_share(Object *o, bool value, Error **errp)
+{
+    HostMemoryBackend *backend = MEMORY_BACKEND(o);
+
+    if (host_memory_backend_mr_inited(backend)) {
+        error_setg(errp, "cannot change property value");
+        return;
+    }
+    backend->share = value;
+}
+
 static void
 host_memory_backend_class_init(ObjectClass *oc, void *data)
 {
@@ -398,6 +416,9 @@ host_memory_backend_class_init(ObjectClass *oc, void *data)
         host_memory_backend_get_policy,
         host_memory_backend_set_policy, &error_abort);
     object_class_property_add_str(oc, "id", get_id, set_id, &error_abort);
+    object_class_property_add_bool(oc, "share",
+        host_memory_backend_get_share, host_memory_backend_set_share,
+        &error_abort);
 }
 
 static void host_memory_backend_finalize(Object *o)