BLOBLIST_ALIGN = 16,
};
+/* Supported tags - add new ones to tag_name in bloblist.c */
enum bloblist_tag_t {
BLOBLISTT_NONE = 0,
BLOBLISTT_SPL_HANDOFF, /* Hand-off info from SPL */
BLOBLISTT_VBOOT_CTX, /* Chromium OS verified boot context */
BLOBLISTT_VBOOT_HANDOFF, /* Chromium OS internal handoff info */
+ /*
+ * Advanced Configuration and Power Interface Global Non-Volatile
+ * Sleeping table. This forms part of the ACPI tables passed to Linux.
+ */
+ BLOBLISTT_ACPI_GNVS,
+ BLOBLISTT_INTEL_VBT, /* Intel Video-BIOS table */
+ BLOBLISTT_TPM2_TCG_LOG, /* TPM v2 log space */
+ BLOBLISTT_TCPA_LOG, /* TPM log space */
+ BLOBLISTT_ACPI_TABLES, /* ACPI tables for x86 */
+ BLOBLISTT_SMBIOS_TABLES, /* SMBIOS tables for x86 */
+
+ BLOBLISTT_COUNT
};
/**
* first bloblist_rec starts at this offset from the start of the header
* @flags: Space for BLOBLISTF_... flags (none yet)
* @magic: BLOBLIST_MAGIC
- * @size: Total size of all records (non-zero if valid) including this header.
+ * @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.
- * @alloced: Total size allocated for this bloblist. When adding new records,
- * the bloblist can grow up to this size. This starts out as
+ * 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
* sizeof(bloblist_hdr) since we need at least that much space to store a
* valid bloblist
- * @spare: Space space
+ * @spare: Spare space (for future use)
* @chksum: CRC32 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.
* Searches the bloblist and returns the blob with the matching tag
*
* @tag: Tag to search for (enum bloblist_tag_t)
- * @size: Expected size of the blob
+ * @size: Expected size of the blob, or 0 for any size
* @return pointer to blob if found, or NULL if not found, or a blob was found
* but it is the wrong size
*/
*
* @tag: Tag to add (enum bloblist_tag_t)
* @size: Size of the blob
+ * @align: Alignment of the blob (in bytes), 0 for default
* @return pointer to the newly added block, or NULL if there is not enough
* space for the blob
*/
-void *bloblist_add(uint tag, int size);
+void *bloblist_add(uint tag, int size, int align);
/**
* bloblist_ensure_size() - Find or add a blob
* @tag: Tag to add (enum bloblist_tag_t)
* @size: Size of the blob
* @blobp: Returns a pointer to blob on success
+ * @align: Alignment of the blob (in bytes), 0 for default
* @return 0 if OK, -ENOSPC if it is missing and could not be added due to lack
* of space, or -ESPIPE it exists but has the wrong size
*/
-int bloblist_ensure_size(uint tag, int size, void **blobp);
+int bloblist_ensure_size(uint tag, int size, int align, void **blobp);
/**
* bloblist_ensure() - Find or add a blob
void *bloblist_ensure(uint tag, int size);
/**
+ * bloblist_ensure_size_ret() - Find or add a blob
+ *
+ * Find an existing blob, or add a new one if not found
+ *
+ * @tag: Tag to add (enum bloblist_tag_t)
+ * @sizep: Size of the blob to create; returns size of actual blob
+ * @blobp: Returns a pointer to blob on success
+ * @return 0 if OK, -ENOSPC if it is missing and could not be added due to lack
+ * of space
+ */
+int bloblist_ensure_size_ret(uint tag, int *sizep, void **blobp);
+
+/**
+ * bloblist_resize() - resize a blob
+ *
+ * Any blobs above this one are relocated up or down. The resized blob remains
+ * in the same place.
+ *
+ * @tag: Tag to add (enum bloblist_tag_t)
+ * @new_size: New size of the blob (>0 to expand, <0 to contract)
+ * @return 0 if OK, -ENOSPC if the bloblist does not have enough space, -ENOENT
+ * if the tag is not found
+ */
+int bloblist_resize(uint tag, int new_size);
+
+/**
* bloblist_new() - Create a new, empty bloblist of a given size
*
* @addr: Address of bloblist
* @return 0 if OK, -ENOENT if the magic number doesn't match (indicating that
* there problem is no bloblist at the given address), -EPROTONOSUPPORT
* if the version does not match, -EIO if the checksum does not match,
- * -EFBIG if the expected size does not match the detected size
+ * -EFBIG if the expected size does not match the detected size, -ENOSPC
+ * if the size is not large enough to hold the headers
*/
int bloblist_check(ulong addr, uint size);
int bloblist_finish(void);
/**
+ * bloblist_get_stats() - Get information about the bloblist
+ *
+ * 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
+ */
+void bloblist_get_stats(ulong *basep, ulong *sizep, ulong *allocedp);
+
+/**
+ * bloblist_show_stats() - Show information about the bloblist
+ *
+ * This shows useful information about the bloblist on the console
+ */
+void bloblist_show_stats(void);
+
+/**
+ * bloblist_show_list() - Show a list of blobs in the bloblist
+ *
+ * This shows a list of blobs, showing their address, size and tag.
+ */
+void bloblist_show_list(void);
+
+/**
+ * bloblist_tag_name() - Get the name for a tag
+ *
+ * @tag: Tag to check
+ * @return name of tag, or "invalid" if an invalid tag is provided
+ */
+const char *bloblist_tag_name(enum bloblist_tag_t tag);
+
+/**
+ * bloblist_reloc() - Relocate the bloblist and optionally resize it
+ *
+ * @to: Pointer to new bloblist location (must not overlap old location)
+ * @to:size: New size for bloblist (must be larger than from_size)
+ * @from: Pointer to bloblist to relocate
+ * @from_size: Size of bloblist to relocate
+ */
+void bloblist_reloc(void *to, uint to_size, void *from, uint from_size);
+
+/**
* bloblist_init() - Init the bloblist system with a single bloblist
*
* This uses CONFIG_BLOBLIST_ADDR and CONFIG_BLOBLIST_SIZE to set up a bloblist
projects / platform / kernel / u-boot.git / blobdiff