partitions/efi: use lba-aware partition records

[~andy/linux] / block / partitions / efi.h

diff --git a/block/partitions/efi.h b/block/partitions/efi.h
index b69ab729558f96763c950384cba2e619d2e444fc..e645ecb35bf34a147c69608609181d6f0329b010 100644 (file)
--- a/block/partitions/efi.h
+++ b/block/partitions/efi.h
@@ -101,11 +101,25 @@ typedef struct _gpt_entry {
        efi_char16_t partition_name[72 / sizeof (efi_char16_t)];
 } __attribute__ ((packed)) gpt_entry;
 
+typedef struct _gpt_mbr_record {
+       u8      boot_indicator; /* unused by EFI, set to 0x80 for bootable */
+       u8      start_head;     /* unused by EFI, pt start in CHS */
+       u8      start_sector;   /* unused by EFI, pt start in CHS */
+       u8      start_track;
+       u8      os_type;        /* EFI and legacy non-EFI OS types */
+       u8      end_head;       /* unused by EFI, pt end in CHS */
+       u8      end_sector;     /* unused by EFI, pt end in CHS */
+       u8      end_track;      /* unused by EFI, pt end in CHS */
+       __le32  starting_lba;   /* used by EFI - start addr of the on disk pt */
+       __le32  size_in_lba;    /* used by EFI - size of pt in LBA */
+} __packed gpt_mbr_record;
+
+
 typedef struct _legacy_mbr {
        u8 boot_code[440];
        __le32 unique_mbr_signature;
        __le16 unknown;
-       struct partition partition_record[4];
+       gpt_mbr_record partition_record[4];
        __le16 signature;
 } __attribute__ ((packed)) legacy_mbr;