Add a wrapper function of LoadKernel()

include/chromeos/load_util.h

+/*
+ * Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __CHROMEOS_LOAD_UTIL__
+#define __CHROMEOS_LOAD_UTIL__
+
+#include <linux/types.h>
+#include <chromeos/firmware_storage.h>
+
+#include <load_kernel_fw.h>
+
+/*
+ * Helper function for loading GBB
+ *
+ * On success, return a pointer to a malloc'ed area storing GBB, and caller is
+ * responsible to free this area. On error, return NULL.
+ */
+void *load_gbb(firmware_storage_t *file, uint64_t *gbb_size_ptr);
+
+/*
+ * Wrapper of LoadKernel() function. Returns the return value of LoadKernel().
+ *
+ * See vboot_reference/firmware/include/load_kernel_fw.h for documentation.
+ */
+int load_kernel_wrapper(LoadKernelParams *params,
+                void *gbb_data, uint64_t gbb_size, uint64_t boot_flags);
+
+#endif /* __CHROMEOS_LOAD_UTIL__ */