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| author | Thomas Petazzoni <thomas.petazzoni@bootlin.com> | 2019-04-23 14:09:42 +0200 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@bootlin.com> | 2019-04-24 09:14:03 +0200 |
| commit | f23a09b177d9a55679fd3a57951313b8a34dc4d9 (patch) | |
| tree | 7f95a9ade16e401e804a06e8b9ee71aa094c4b7e | |
| parent | abc1c32378debaccdfb63c711de56f3a1becb84b (diff) | |
| download | genimage-f23a09b177d9a55679fd3a57951313b8a34dc4d9.tar.gz genimage-f23a09b177d9a55679fd3a57951313b8a34dc4d9.tar.xz | |
image-hd: add support for bootable flags on GPT
Bit 2 of the GPT partition table entry "flags" attribute allows to
mark the partition as bootable, so we add support for setting this
flag, using the same bootable flag used for MBR partition tables.
Setting this flag is useful to properly support the "Generic Distro"
concept from U-Boot [1], which searches for boot scripts in the
bootable partition.
[1] http://git.denx.de/?p=u-boot.git;a=blob;f=doc/README.distro
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
| -rw-r--r-- | image-hd.c | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -78,6 +78,8 @@ struct gpt_partition_entry { #define GPT_SECTORS (1 + GPT_ENTRIES * sizeof(struct gpt_partition_entry) / 512) #define GPT_REVISION_1_0 0x00010000 +#define GPT_PE_FLAG_BOOTABLE (1 << 2) + static void hdimage_setup_chs(unsigned int lba, unsigned char *chs) { const unsigned int hpc = 255; @@ -275,6 +277,7 @@ static int hdimage_insert_gpt(struct image *image, struct list_head *partitions) uuid_parse(part->partition_uuid, table[i].uuid); table[i].first_lba = htole64(part->offset/512); table[i].last_lba = htole64((part->offset + part->size)/512 - 1); + table[i].flags = part->bootable ? GPT_PE_FLAG_BOOTABLE : 0; for (j = 0; j < strlen(part->name) && j < 36; j++) table[i].name[j] = htole16(part->name[j]); i++; |