diff --git a/hw/isa/isa-bus.c b/hw/isa/isa-bus.c
index 1c9d7e19ab..e6412d39b4 100644
--- a/hw/isa/isa-bus.c
+++ b/hw/isa/isa-bus.c
@@ -176,6 +176,16 @@ ISADevice *isa_try_create(ISABus *bus, const char *name)
     return ISA_DEVICE(dev);
 }
 
+ISADevice *isa_new(const char *name)
+{
+    return ISA_DEVICE(qdev_new(name));
+}
+
+ISADevice *isa_try_new(const char *name)
+{
+    return ISA_DEVICE(qdev_try_new(name));
+}
+
 ISADevice *isa_create_simple(ISABus *bus, const char *name)
 {
     ISADevice *dev;
@@ -185,6 +195,11 @@ ISADevice *isa_create_simple(ISABus *bus, const char *name)
     return dev;
 }
 
+bool isa_realize_and_unref(ISADevice *dev, ISABus *bus, Error **errp)
+{
+    return qdev_realize_and_unref(&dev->parent_obj, &bus->parent_obj, errp);
+}
+
 ISADevice *isa_vga_init(ISABus *bus)
 {
     switch (vga_interface_type) {
diff --git a/include/hw/isa/isa.h b/include/hw/isa/isa.h
index 02c2350274..3b6215fafe 100644
--- a/include/hw/isa/isa.h
+++ b/include/hw/isa/isa.h
@@ -105,6 +105,9 @@ MemoryRegion *isa_address_space(ISADevice *dev);
 MemoryRegion *isa_address_space_io(ISADevice *dev);
 ISADevice *isa_create(ISABus *bus, const char *name);
 ISADevice *isa_try_create(ISABus *bus, const char *name);
+ISADevice *isa_new(const char *name);
+ISADevice *isa_try_new(const char *name);
+bool isa_realize_and_unref(ISADevice *dev, ISABus *bus, Error **errp);
 ISADevice *isa_create_simple(ISABus *bus, const char *name);
 
 ISADevice *isa_vga_init(ISABus *bus);