Enable attributes to display and set properly.

src/platform/vboot_reference/vboot_firmware/lib/cgptlib/include/cgptlib_internal.h

 /* Copyright (c) 2010 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 VBOOT_REFERENCE_CGPTLIB_INTERNAL_H_
 #define VBOOT_REFERENCE_CGPTLIB_INTERNAL_H_
 
 #include <stdint.h>
 #include "cgptlib.h"
 #include "gpt.h"
 
 /* If gpt->current_kernel is this value, means either:
  *   1. an initial value before scanning GPT entries,
  *   2. after scanning, no any valid kernel is found.
  */
 #define CGPT_KERNEL_ENTRY_NOT_FOUND (-1)
 
 /* Bit definitions and masks for GPT attributes.
  *
- *     63  -- do not automounting
- *     62  -- hidden
+ *  63-61  -- (reserved)
  *     60  -- read-only
- *      :
+ *  59-57  -- (reserved)
  *     56  -- success
- *  55,52  -- tries
- *  51,48  -- priority
- *      0  -- system partition
+ *  55-52  -- tries
+ *  51-48  -- priority
+ *   47-2  -- UEFI: reserved for future use
+ *      1  -- UEFI: partition is not mapped
+ *      0  -- UEFI: partition is required
  */
 #define CGPT_ATTRIBUTE_SUCCESSFUL_OFFSET 56
 #define CGPT_ATTRIBUTE_MAX_SUCCESSFUL (1ULL)
 #define CGPT_ATTRIBUTE_SUCCESSFUL_MASK (CGPT_ATTRIBUTE_MAX_SUCCESSFUL << \
                                      CGPT_ATTRIBUTE_SUCCESSFUL_OFFSET)
 
 #define CGPT_ATTRIBUTE_TRIES_OFFSET 52
 #define CGPT_ATTRIBUTE_MAX_TRIES (15ULL)
 #define CGPT_ATTRIBUTE_TRIES_MASK (CGPT_ATTRIBUTE_MAX_TRIES << \
                                    CGPT_ATTRIBUTE_TRIES_OFFSET)
@@ skipping 68 matching lines @@
 void SetEntryPriority(GptEntry* e, int priority);
 void SetEntryTries(GptEntry* e, int tries);
 
 /* Return 1 if the entry is unused, 0 if it is used. */
 int IsUnusedEntry(const GptEntry* e);
 
 /* Returns 1 if the entry is a Chrome OS kernel partition, else 0. */
 int IsKernelEntry(const GptEntry* e);
 
 #endif /* VBOOT_REFERENCE_CGPTLIB_INTERNAL_H_ */