diff options
Diffstat (limited to 'include/smbios.h')
| -rw-r--r-- | include/smbios.h | 41 |
1 files changed, 36 insertions, 5 deletions
diff --git a/include/smbios.h b/include/smbios.h index c9df2706f5..49de32fec2 100644 --- a/include/smbios.h +++ b/include/smbios.h @@ -12,7 +12,7 @@ /* SMBIOS spec version implemented */ #define SMBIOS_MAJOR_VER 3 -#define SMBIOS_MINOR_VER 0 +#define SMBIOS_MINOR_VER 7 enum { SMBIOS_STR_MAX = 64, /* Maximum length allowed for a string */ @@ -54,6 +54,36 @@ struct __packed smbios_entry { u8 bcd_rev; }; +/** + * struct smbios3_entry - SMBIOS 3.0 (64-bit) Entry Point structure + */ +struct __packed smbios3_entry { + /** @anchor: anchor string */ + u8 anchor[5]; + /** @checksum: checksum of the entry point structure */ + u8 checksum; + /** @length: length of the entry point structure */ + u8 length; + /** @major_ver: major version of the SMBIOS specification */ + u8 major_ver; + /** @minor_ver: minor version of the SMBIOS specification */ + u8 minor_ver; + /** @docrev: revision of the SMBIOS specification */ + u8 doc_rev; + /** @entry_point_rev: revision of the entry point structure */ + u8 entry_point_rev; + /** @reserved: reserved */ + u8 reserved; + /** maximum size of SMBIOS table */ + u32 max_struct_size; + /** @struct_table_address: 64-bit physical starting address */ + u64 struct_table_address; +}; + +/* These two structures should use the same amount of 16-byte-aligned space */ +static_assert(ALIGN(16, sizeof(struct smbios_entry)) == + ALIGN(16, sizeof(struct smbios3_entry))); + /* BIOS characteristics */ #define BIOS_CHARACTERISTICS_PCI_SUPPORTED (1 << 7) #define BIOS_CHARACTERISTICS_UPGRADEABLE (1 << 11) @@ -228,12 +258,13 @@ static inline void fill_smbios_header(void *table, int type, * * This writes SMBIOS table at a given address. * - * @addr: start address to write SMBIOS table. If this is not - * 16-byte-aligned then it will be aligned before the table is - * written. + * @addr: start address to write SMBIOS table, 16-byte-alignment + * recommended. Note that while the SMBIOS tables themself have no alignment + * requirement, some systems may requires alignment. For example x86 systems + * which put tables at f0000 require 16-byte alignment + * * Return: end address of SMBIOS table (and start address for next entry) * or NULL in case of an error - * */ ulong write_smbios_table(ulong addr); |