+//\r
+// EFI Load Option. This data structure describes format of UEFI boot option variables.\r
+//\r
+// NOTE: EFI Load Option is a byte packed buffer of variable length fields.\r
+// The first two fields have fixed length. They are declared as members of the\r
+// EFI_LOAD_OPTION structure. All the other fields are variable length fields.\r
+// They are listed in the comment block below for reference purposes.\r
+//\r
+#pragma pack(1)\r
+typedef struct _EFI_LOAD_OPTION {\r
+ ///\r
+ /// The attributes for this load option entry. All unused bits must be zero\r
+ /// and are reserved by the UEFI specification for future growth.\r
+ ///\r
+ UINT32 Attributes;\r
+ ///\r
+ /// Length in bytes of the FilePathList. OptionalData starts at offset\r
+ /// sizeof(UINT32) + sizeof(UINT16) + StrSize(Description) + FilePathListLength\r
+ /// of the EFI_LOAD_OPTION descriptor.\r
+ ///\r
+ UINT16 FilePathListLength;\r
+ ///\r
+ /// The user readable description for the load option.\r
+ /// This field ends with a Null character.\r
+ ///\r
+ // CHAR16 Description[];\r
+ ///\r
+ /// A packed array of UEFI device paths. The first element of the array is a\r
+ /// device path that describes the device and location of the Image for this\r
+ /// load option. The FilePathList[0] is specific to the device type. Other\r
+ /// device paths may optionally exist in the FilePathList, but their usage is\r
+ /// OSV specific. Each element in the array is variable length, and ends at\r
+ /// the device path end structure. Because the size of Description is\r
+ /// arbitrary, this data structure is not guaranteed to be aligned on a\r
+ /// natural boundary. This data structure may have to be copied to an aligned\r
+ /// natural boundary before it is used.\r
+ ///\r
+ // EFI_DEVICE_PATH_PROTOCOL FilePathList[];\r
+ ///\r
+ /// The remaining bytes in the load option descriptor are a binary data buffer\r
+ /// that is passed to the loaded image. If the field is zero bytes long, a\r
+ /// NULL pointer is passed to the loaded image. The number of bytes in\r
+ /// OptionalData can be computed by subtracting the starting offset of\r
+ /// OptionalData from total size in bytes of the EFI_LOAD_OPTION.\r
+ ///\r
+ // UINT8 OptionalData[];\r
+} EFI_LOAD_OPTION;\r
+#pragma pack()\r
+\r