partition: check GPT partition table
Now only support GPT partition table. MBR partition table isn't
supported yet.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
diff --git a/include/drivers/partition/gpt.h b/include/drivers/partition/gpt.h
new file mode 100644
index 0000000..bd0a7f0
--- /dev/null
+++ b/include/drivers/partition/gpt.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __GPT_H__
+#define __GPT_H__
+
+#include <partition.h>
+
+#define PARTITION_TYPE_GPT 0xee
+#define GPT_HEADER_OFFSET PARTITION_BLOCK_SIZE
+#define GPT_ENTRY_OFFSET (GPT_HEADER_OFFSET + \
+ PARTITION_BLOCK_SIZE)
+#define GUID_LEN 16
+
+#define GPT_SIGNATURE "EFI PART"
+
+typedef struct gpt_entry {
+ unsigned char type_uuid[GUID_LEN];
+ unsigned char unique_uuid[GUID_LEN];
+ unsigned long long first_lba;
+ unsigned long long last_lba;
+ unsigned long long attr;
+ unsigned short name[EFI_NAMELEN];
+} gpt_entry_t;
+
+typedef struct gpt_header {
+ unsigned char signature[8];
+ unsigned int revision;
+ unsigned int size;
+ unsigned int header_crc;
+ unsigned int reserved;
+ unsigned long long current_lba;
+ unsigned long long backup_lba;
+ unsigned long long first_lba;
+ unsigned long long last_lba;
+ unsigned char disk_uuid[16];
+ /* starting LBA of array of partition entries */
+ unsigned long long part_lba;
+ /* number of partition entries in array */
+ unsigned int list_num;
+ /* size of a single partition entry (usually 128) */
+ unsigned int part_size;
+ unsigned int part_crc;
+} gpt_header_t;
+
+int parse_gpt_entry(gpt_entry_t *gpt_entry, partition_entry_t *entry);
+
+#endif /* __GPT_H__ */