diff options
Diffstat (limited to 'src/fw/biostables.c')
| -rw-r--r-- | src/fw/biostables.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/src/fw/biostables.c b/src/fw/biostables.c index 91fe7470..b2c84a12 100644 --- a/src/fw/biostables.c +++ b/src/fw/biostables.c @@ -315,8 +315,36 @@ copy_smbios_21(void *pos) SMBios21Addr = copy_fseg_table("SMBIOS", pos, p->length); } +static struct smbios_30_entry_point *SMBios30Addr; + +static int +valid_smbios_30_signature(struct smbios_30_entry_point *p) +{ + return !memcmp(p->signature, "_SM3_", 5); +} + +void +copy_smbios_30(void *pos) +{ + if (SMBios30Addr) + return; + struct smbios_30_entry_point *p = pos; + if (!valid_smbios_30_signature(p)) + return; + if (checksum(pos, p->length) != 0) + return; + SMBios30Addr = copy_fseg_table("SMBIOS 3.0", pos, p->length); +} + void *smbios_get_tables(u32 *length) { + if (SMBios30Addr) { + u32 addr32 = SMBios30Addr->structure_table_address; + if (addr32 == SMBios30Addr->structure_table_address) { + *length = SMBios30Addr->structure_table_max_size; + return (void *)addr32; + } + } if (SMBios21Addr) { *length = SMBios21Addr->structure_table_length; return (void *)SMBios21Addr->structure_table_address; @@ -327,7 +355,9 @@ void *smbios_get_tables(u32 *length) static int smbios_major_version(void) { - if (SMBios21Addr) + if (SMBios30Addr) + return SMBios30Addr->smbios_major_version; + else if (SMBios21Addr) return SMBios21Addr->smbios_major_version; else return 0; @@ -336,7 +366,9 @@ smbios_major_version(void) static int smbios_minor_version(void) { - if (SMBios21Addr) + if (SMBios30Addr) + return SMBios30Addr->smbios_minor_version; + else if (SMBios21Addr) return SMBios21Addr->smbios_minor_version; else return 0; |