Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / core / edd.c

diff --git a/qemu/roms/ipxe/src/core/edd.c b/qemu/roms/ipxe/src/core/edd.c
new file mode 100644 (file)
index 0000000..d574ea6
--- /dev/null
+++ b/qemu/roms/ipxe/src/core/edd.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <errno.h>
+#include <ipxe/interface.h>
+#include <ipxe/edd.h>
+
+/** @file
+ *
+ * Enhanced Disk Drive specification
+ *
+ */
+
+/**
+ * Describe a disk device using EDD
+ *
+ * @v intf             Interface
+ * @v type             EDD interface type
+ * @v path             EDD device path
+ * @ret rc             Return status code
+ */
+int edd_describe ( struct interface *intf, struct edd_interface_type *type,
+                  union edd_device_path *path ) {
+       struct interface *dest;
+       edd_describe_TYPE ( void * ) *op =
+               intf_get_dest_op ( intf, edd_describe, &dest );
+       void *object = intf_object ( dest );
+       int rc;
+
+       if ( op ) {
+               rc = op ( object, type, path );
+       } else {
+               /* Default is to not support this operation */
+               rc = -ENOTSUP;
+       }
+
+       intf_put ( dest );
+       return rc;
+}