[U-Boot] [PATCH v3 2/3] gpt: add optional parameter type in gpt command
Patrick Delaunay
patrick.delaunay73 at gmail.com
Tue Oct 27 11:00:27 CET 2015
code under flag CONFIG_PARTITION_TYPE_GUID
add parameter "type" to select partition type guid
example of use with gpt command :
partitions = uuid_disk=${uuid_gpt_disk}; \
name=boot,size=0x6bc00,uuid=${uuid_gpt_boot}; \
name=root,size=0x7538ba00,uuid=${uuid_gpt_root}, \
type=0fc63daf-8483-4772-8e79-3d69d8477de4;
gpt write mmc 0 $partitions
Signed-off-by: Patrick Delaunay <patrick.delaunay73 at gmail.com>
---
Changes in v3:
- documentation update
Changes in v2:
- change guid to type in gpt command parameter
- change guid to type_guid in disk_partition_t
- remove 'S' at the end of some flag CONFIG_PARTITION_TYPE_GUID
common/cmd_gpt.c | 17 +++++++++++++++++
disk/part.c | 9 +++++++++
disk/part_efi.c | 25 +++++++++++++++++++++++++
doc/README.gpt | 13 +++++++++++++
include/part.h | 3 +++
5 files changed, 67 insertions(+)
diff --git a/common/cmd_gpt.c b/common/cmd_gpt.c
index c56fe15..e3c0297 100644
--- a/common/cmd_gpt.c
+++ b/common/cmd_gpt.c
@@ -218,6 +218,23 @@ static int set_gpt_info(block_dev_desc_t *dev_desc,
strcpy((char *)parts[i].uuid, p);
free(val);
}
+#ifdef CONFIG_PARTITION_TYPE_GUID
+ /* guid */
+ val = extract_val(tok, "type");
+ if (val) {
+ /* 'type' is optional */
+ if (extract_env(val, &p))
+ p = val;
+ if (strlen(p) >= sizeof(parts[i].type_guid)) {
+ printf("Wrong type guid format for partition %d\n",
+ i);
+ errno = -4;
+ goto err;
+ }
+ strcpy((char *)parts[i].type_guid, p);
+ free(val);
+ }
+#endif
/* name */
val = extract_val(tok, "name");
if (!val) { /* name is mandatory */
diff --git a/disk/part.c b/disk/part.c
index 43485c9..a47ec8c 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -391,6 +391,9 @@ int get_partition_info(block_dev_desc_t *dev_desc, int part,
/* The common case is no UUID support */
info->uuid[0] = 0;
#endif
+#ifdef CONFIG_PARTITION_TYPE_GUID
+ info->type_guid[0] = 0;
+#endif
switch (dev_desc->part_type) {
#ifdef CONFIG_MAC_PARTITION
@@ -526,6 +529,9 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str,
#ifdef CONFIG_PARTITION_UUIDS
info->uuid[0] = 0;
#endif
+#ifdef CONFIG_PARTITION_TYPE_GUID
+ info->type_guid[0] = 0;
+#endif
return 0;
}
@@ -610,6 +616,9 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str,
#ifdef CONFIG_PARTITION_UUIDS
info->uuid[0] = 0;
#endif
+#ifdef CONFIG_PARTITION_TYPE_GUID
+ info->type_guid[0] = 0;
+#endif
ret = 0;
goto cleanup;
diff --git a/disk/part_efi.c b/disk/part_efi.c
index 15627f2..c124143 100644
--- a/disk/part_efi.c
+++ b/disk/part_efi.c
@@ -283,6 +283,10 @@ int get_partition_info_efi(block_dev_desc_t * dev_desc, int part,
uuid_bin_to_str(gpt_pte[part - 1].unique_partition_guid.b, info->uuid,
UUID_STR_FORMAT_GUID);
#endif
+#ifdef CONFIG_PARTITION_TYPE_GUID
+ uuid_bin_to_str(gpt_pte[part - 1].partition_type_guid.b,
+ info->type_guid, UUID_STR_FORMAT_GUID);
+#endif
debug("%s: start 0x" LBAF ", size 0x" LBAF ", name %s\n", __func__,
info->start, info->size, info->name);
@@ -419,6 +423,10 @@ int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
char *str_uuid;
unsigned char *bin_uuid;
#endif
+#ifdef CONFIG_PARTITION_TYPE_GUID
+ char *str_type_guid;
+ unsigned char *bin_type_guid;
+#endif
for (i = 0; i < parts; i++) {
/* partition starting lba */
@@ -445,9 +453,26 @@ int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
else
gpt_e[i].ending_lba = cpu_to_le64(offset - 1);
+#ifdef CONFIG_PARTITION_TYPE_GUID
+ str_type_guid = partitions[i].type_guid;
+ bin_type_guid = gpt_e[i].partition_type_guid.b;
+ if (strlen(str_type_guid)) {
+ if (uuid_str_to_bin(str_type_guid, bin_type_guid,
+ UUID_STR_FORMAT_GUID)) {
+ printf("Partition no. %d: invalid type guid: %s\n",
+ i, str_type_guid);
+ return -1;
+ }
+ } else {
+ /* default partition type GUID */
+ memcpy(bin_type_guid,
+ &PARTITION_BASIC_DATA_GUID, 16);
+ }
+#else
/* partition type GUID */
memcpy(gpt_e[i].partition_type_guid.b,
&PARTITION_BASIC_DATA_GUID, 16);
+#endif
#ifdef CONFIG_PARTITION_UUIDS
str_uuid = partitions[i].uuid;
diff --git a/doc/README.gpt b/doc/README.gpt
index 6e298d2..bf9b8bd 100644
--- a/doc/README.gpt
+++ b/doc/README.gpt
@@ -171,6 +171,19 @@ To restore GUID partition table one needs to:
2. From u-boot prompt type:
gpt write mmc 0 $partitions
+Partition type GUID:
+====================
+
+For created partition, the used partition type GUID is
+PARTITION_BASIC_DATA_GUID (EBD0A0A2-B9E5-4433-87C0-68B6B72699C7).
+
+If you define 'CONFIG_PARTITION_TYPE_GUID', a optionnal parameter 'type'
+can specify a other partition type guid:
+
+ "partitions=uuid_disk=...;name=u-boot,size=60MiB,uuid=...;
+ name=kernel,size=60MiB,uuid=...,
+ type=0FC63DAF-8483-4772-8E79-3D69D8477DE4;"
+
Useful info:
============
diff --git a/include/part.h b/include/part.h
index 8ea9b30..8b5ac12 100644
--- a/include/part.h
+++ b/include/part.h
@@ -93,6 +93,9 @@ typedef struct disk_partition {
#ifdef CONFIG_PARTITION_UUIDS
char uuid[37]; /* filesystem UUID as string, if exists */
#endif
+#ifdef CONFIG_PARTITION_TYPE_GUID
+ char type_guid[37]; /* type GUID as string, if exists */
+#endif
} disk_partition_t;
/* Misc _get_dev functions */
--
1.9.1
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