diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/vboot/firmware_cache.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/include/vboot/firmware_cache.h b/include/vboot/firmware_cache.h index 78e4bb82e1c..df18c86ded3 100644 --- a/include/vboot/firmware_cache.h +++ b/include/vboot/firmware_cache.h @@ -23,18 +23,23 @@ typedef struct { /* - * These fields are the offsets of firmware data sections, - * from beginning of firmware storage device. + * The offset of the firmware data section from the beginning of + * the firmware storage device. */ off_t offset; /* - * These fields are the sizes of firmware data sections. + * The size of the signed firmware data section, which should be + * exactly the same size as what is described by the vblock. + * + * If this size is larger than what was signed (the vblock value), + * then VbExHashFirmwareBody() will hash the extra data and compute + * a different hash value that does not match. */ size_t size; /* - * These pointers will point to firmware data bodies loaded by + * Pointer to the firmware data section loaded by * VbExHashFirmwareBody(). */ uint8_t *buffer; |