diff mbox series

[RESEND,RFC,01/10] GPT: Add function to get gpt header and partition entries

Message ID 20211125071302.3644-2-sughosh.ganu@linaro.org
State New
Headers show
Series FWU: Add support for FWU Multi Bank Update feature | expand

Commit Message

Sughosh Ganu Nov. 25, 2021, 7:12 a.m. UTC 
Add function to get the gpt header and partition entries filled. These
would be used subsequently for multi bank firmware update support on
devices where the images reside on GPT partitions.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
---
 disk/part_efi.c | 10 ++++++++++
 include/part.h  | 14 ++++++++++++++
 2 files changed, 24 insertions(+)
diff mbox series

Patch

diff --git a/disk/part_efi.c b/disk/part_efi.c
index 0ca7effc32..792b9218a9 100644
--- a/disk/part_efi.c
+++ b/disk/part_efi.c
@@ -216,6 +216,16 @@  int get_disk_guid(struct blk_desc * dev_desc, char *guid)
 	return 0;
 }
 
+int get_gpt_hdr_parts(struct blk_desc *desc, gpt_header *gpt_head,
+		      gpt_entry **gpt_pte)
+{
+	/* This function validates and fills in the GPT header and PTE's */
+	if (find_valid_gpt(desc, gpt_head, gpt_pte) != 1)
+		return -EINVAL;
+
+	return 0;
+}
+
 void part_print_efi(struct blk_desc *dev_desc)
 {
 	ALLOC_CACHE_ALIGN_BUFFER_PAD(gpt_header, gpt_head, 1, dev_desc->blksz);
diff --git a/include/part.h b/include/part.h
index b66b07a1f0..8e86485b97 100644
--- a/include/part.h
+++ b/include/part.h
@@ -345,6 +345,20 @@  struct part_driver {
 
 #if CONFIG_IS_ENABLED(EFI_PARTITION)
 /* disk/part_efi.c */
+
+/**
+ * get_gpt_hdr_parts() - Get information on the GPT Header and
+ *                       Partition Table Entries
+ *
+ * @param desc - block device descriptor
+ * @param gpt_h - pointer to GPT header representation
+ * @param gpt_e - pointer to GPT partition table entries
+ *
+ * @return - zero on success, otherwise error
+ */
+int get_gpt_hdr_parts(struct blk_desc *desc, gpt_header *gpt_head,
+		      gpt_entry **gpt_pte);
+
 /**
  * write_gpt_table() - Write the GUID Partition Table to disk
  *