diff --git a/usr.sbin/bhyve/acpi_device.h b/usr.sbin/bhyve/acpi_device.h
--- a/usr.sbin/bhyve/acpi_device.h
+++ b/usr.sbin/bhyve/acpi_device.h
@@ -28,13 +28,14 @@
  * Creates an ACPI device.
  *
  * @param[out] new_dev Returns the newly create ACPI device.
+ * @param[in]  parent  Pointer to the parent object which is an ACPI device.
  * @param[in]  vm_ctx  VM context the ACPI device is created in.
  * @param[in]  emul    Device emulation struct. It contains some information
  *                     like the name of the ACPI device and some device specific
  *                     functions.
  */
-int acpi_device_create(struct acpi_device **new_dev, struct vmctx *vm_ctx,
-    const struct acpi_device_emul *emul);
+int acpi_device_create(struct acpi_device **new_dev, void *parent,
+    struct vmctx *vm_ctx, const struct acpi_device_emul *emul);
 void acpi_device_destroy(struct acpi_device *dev);
 
 int acpi_device_add_res_fixed_ioport(struct acpi_device *dev, UINT16 port,
@@ -42,5 +43,7 @@
 int acpi_device_add_res_fixed_memory32(struct acpi_device *dev,
     UINT8 write_protected, UINT32 address, UINT32 length);
 
+void *acpi_device_get_parent(const struct acpi_device *dev);
+
 int acpi_device_build_table(const struct acpi_device *dev);
 void acpi_device_write_dsdt(const struct acpi_device *dev);
diff --git a/usr.sbin/bhyve/acpi_device.c b/usr.sbin/bhyve/acpi_device.c
--- a/usr.sbin/bhyve/acpi_device.c
+++ b/usr.sbin/bhyve/acpi_device.c
@@ -41,12 +41,13 @@
  */
 struct acpi_device {
 	struct vmctx *vm_ctx;
+	void *parent;
 	const struct acpi_device_emul *emul;
 	SLIST_HEAD(acpi_resource_list, acpi_resource_list_entry) crs;
 };
 
 int
-acpi_device_create(struct acpi_device **const new_dev,
+acpi_device_create(struct acpi_device **const new_dev, void *const parent,
     struct vmctx *const vm_ctx, const struct acpi_device_emul *const emul)
 {
 	if (new_dev == NULL || vm_ctx == NULL || emul == NULL) {
@@ -59,6 +60,7 @@
 	}
 
 	dev->vm_ctx = vm_ctx;
+	dev->parent = parent;
 	dev->emul = emul;
 	SLIST_INIT(&dev->crs);
 	if (dev->name == NULL || dev->hid == NULL) {
@@ -141,6 +143,16 @@
 	return (0);
 }
 
+void *
+acpi_device_get_parent(const struct acpi_device *const dev)
+{
+	if (dev == NULL) {
+		return (NULL);
+	}
+
+	return (dev->parent);
+}
+
 int
 acpi_device_build_table(const struct acpi_device *const dev)
 {
diff --git a/usr.sbin/bhyve/qemu_fwcfg.c b/usr.sbin/bhyve/qemu_fwcfg.c
--- a/usr.sbin/bhyve/qemu_fwcfg.c
+++ b/usr.sbin/bhyve/qemu_fwcfg.c
@@ -366,7 +366,7 @@
 	 * tables and register io ports for fwcfg, if it's used.
 	 */
 	if (strcmp(lpc_fwcfg(), "qemu") == 0) {
-		error = acpi_device_create(&sc.acpi_dev, ctx,
+		error = acpi_device_create(&sc.acpi_dev, NULL, ctx,
 		    &qemu_fwcfg_acpi_device_emul);
 		if (error) {
 			warnx("%s: failed to create ACPI device for QEMU FwCfg",