Hi Heinrich,
Heinrich Schuchardt <xypron.g...@gmx.de> writes:
> Up to now for MBR and GPT partitions the info field 'bootable' was set to 1
> if either the partition was an EFI system partition or the bootable flag
> was set.
>
> Turn info field 'bootable' into a bit mask with separate bits for bootable
> and EFI system partition.
>
> This will allow us to identify the EFI system partition in the UEFI
> sub-system.
>
> Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
> ---
> disk/part_dos.c | 10 ++++++++--
> disk/part_efi.c | 12 ++++++++----
> include/part.h | 11 ++++++++++-
> 3 files changed, 26 insertions(+), 7 deletions(-)
>
[...]
> diff --git a/include/part.h b/include/part.h
> index 0b5cf3d5e8..a63d1d0cda 100644
> --- a/include/part.h
> +++ b/include/part.h
> @@ -51,13 +51,22 @@ struct block_drvr {
> #define PART_TYPE_LEN 32
> #define MAX_SEARCH_PARTITIONS 64
>
> +#define PART_BOOTABLE 1
> +#define PART_EFI_SYSTEM_PARTITION 2
As these defines are used as flags, it be better to use the BIT() macro
to make it explicit that these are bit positions rather than sequential
values.
Thanks,
Punit
> +
> typedef struct disk_partition {
> lbaint_t start; /* # of first block in partition */
> lbaint_t size; /* number of blocks in partition */
> ulong blksz; /* block size in bytes */
> uchar name[PART_NAME_LEN]; /* partition name
> */
> uchar type[PART_TYPE_LEN]; /* string type description
> */
> - int bootable; /* Active/Bootable flag is set */
> + /*
> + * The bootable is a bitmask with the following fields:
> + *
> + * PART_BOOTABLE the MBR bootable flag is set
> + * PART_EFI_SYSTEM_PARTITION the partition is an EFI system partition
> + */
> + int bootable;
> #if CONFIG_IS_ENABLED(PARTITION_UUIDS)
> char uuid[UUID_STR_LEN + 1]; /* filesystem UUID as string, if exists
> */
> #endif
> --
> 2.20.1
