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bloblist: Adjust the bloblist header

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The v0.9 spec provides for a 24-byte header. Update the implementation
to match this.
Rename the fields of the bloblist header to align to the spec.
Adds an alignment field into the bloblist header.
Update the related bloblist APIs and UT testcases.

Signed-off-by: Simon Glass <sjg@chromium.org>
Co-developed-by: Raymond Mao <raymond.mao@linaro.org>
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Simon Glass
2023-12-27 13:07:08 -08:00
parent b6e83826ef
commit b86b2d940c
3 changed files with 95 additions and 72 deletions
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44
include/bloblist.h
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@@ -166,32 +166,33 @@ enum bloblist_tag_t {
* from the last.
*
* @magic: BLOBLIST_MAGIC
* @chksum: checksum for the entire bloblist allocated area. Since any of the
* blobs can be altered after being created, this checksum is only valid
* when the bloblist is finalized before jumping to the next stage of boot.
* This is the value needed to make all checksummed bytes sum to 0
* @version: BLOBLIST_VERSION
* @hdr_size: Size of this header, normally sizeof(struct bloblist_hdr). The
* first bloblist_rec starts at this offset from the start of the header
* @flags: Space for BLOBLISTF... flags (none yet)
* @size: Total size of the bloblist (non-zero if valid) including this header.
* The bloblist extends for this many bytes from the start of this header.
* When adding new records, the bloblist can grow up to this size.
* @alloced: Total size allocated so far for this bloblist. This starts out as
* @align_log2: Power of two of the maximum alignment required by this list
* @used_size: Size allocated so far for this bloblist. This starts out as
* sizeof(bloblist_hdr) since we need at least that much space to store a
* valid bloblist
* @total_size: The number of total bytes that the bloblist can occupy.
* Any blob producer must check if there is sufficient space before adding
* a record to the bloblist.
* @flags: Space for BLOBLISTF... flags (none yet)
* @spare: Spare space (for future use)
* @chksum: checksum for the entire bloblist allocated area. Since any of the
* blobs can be altered after being created, this checksum is only valid
* when the bloblist is finalised before jumping to the next stage of boot.
* This is the value needed to make all checksummed bytes sum to 0
*/
struct bloblist_hdr {
u32 magic;
u32 version;
u32 hdr_size;
u8 chksum;
u8 version;
u8 hdr_size;
u8 align_log2;
u32 used_size;
u32 total_size;
u32 flags;
u32 size;
u32 alloced;
u32 spare;
u32 chksum;
};
/**
@@ -363,10 +364,10 @@ int bloblist_finish(void);
* This returns useful information about the bloblist
*
* @basep: Returns base address of bloblist
* @sizep: Returns the number of bytes used in the bloblist
* @allocedp: Returns the total space allocated to the bloblist
* @tsizep: Returns the total number of bytes of the bloblist
* @usizep: Returns the number of used bytes of the bloblist
*/
void bloblist_get_stats(ulong *basep, ulong *sizep, ulong *allocedp);
void bloblist_get_stats(ulong *basep, ulong *tsizep, ulong *usizep);
/**
* bloblist_get_base() - Get the base address of the bloblist
@@ -382,6 +383,13 @@ ulong bloblist_get_base(void);
*/
ulong bloblist_get_size(void);
/**
* bloblist_get_total_size() - Get the total size of the bloblist
*
* Return: the size in bytes
*/
ulong bloblist_get_total_size(void);
/**
* bloblist_show_stats() - Show information about the bloblist
*