diff options
| -rw-r--r-- | src/fw/biostables.c | 47 |
1 files changed, 36 insertions, 11 deletions
diff --git a/src/fw/biostables.c b/src/fw/biostables.c index cb743963..9fb9ff9d 100644 --- a/src/fw/biostables.c +++ b/src/fw/biostables.c @@ -306,17 +306,42 @@ display_uuid(void) if (memcmp(uuid, empty_uuid, sizeof(empty_uuid)) == 0) return; - printf("Machine UUID" - " %02x%02x%02x%02x" - "-%02x%02x" - "-%02x%02x" - "-%02x%02x" - "-%02x%02x%02x%02x%02x%02x\n" - , uuid[ 0], uuid[ 1], uuid[ 2], uuid[ 3] - , uuid[ 4], uuid[ 5] - , uuid[ 6], uuid[ 7] - , uuid[ 8], uuid[ 9] - , uuid[10], uuid[11], uuid[12], uuid[13], uuid[14], uuid[15]); + /* + * According to SMBIOS v2.6 the first three fields are encoded in + * little-endian format. Versions prior to v2.6 did not specify + * the encoding, but we follow dmidecode and assume big-endian + * encoding. + */ + if (SMBiosAddr->smbios_major_version > 2 || + (SMBiosAddr->smbios_major_version == 2 && + SMBiosAddr->smbios_minor_version >= 6)) { + printf("Machine UUID" + " %02x%02x%02x%02x" + "-%02x%02x" + "-%02x%02x" + "-%02x%02x" + "-%02x%02x%02x%02x%02x%02x\n" + , uuid[ 3], uuid[ 2], uuid[ 1], uuid[ 0] + , uuid[ 5], uuid[ 4] + , uuid[ 7], uuid[ 6] + , uuid[ 8], uuid[ 9] + , uuid[10], uuid[11], uuid[12] + , uuid[13], uuid[14], uuid[15]); + } else { + printf("Machine UUID" + " %02x%02x%02x%02x" + "-%02x%02x" + "-%02x%02x" + "-%02x%02x" + "-%02x%02x%02x%02x%02x%02x\n" + , uuid[ 0], uuid[ 1], uuid[ 2], uuid[ 3] + , uuid[ 4], uuid[ 5] + , uuid[ 6], uuid[ 7] + , uuid[ 8], uuid[ 9] + , uuid[10], uuid[11], uuid[12] + , uuid[13], uuid[14], uuid[15]); + } + return; } } |