blob: 4ccf2ea348eead3eafb6b9da2f5ce88e65c1acd4 [file] [log] [blame]
Kevin O'Connor01a85202009-10-18 09:49:59 -04001#ifndef __SMBIOS_H
2#define __SMBIOS_H
3
Kevin O'Connorb37a5282013-09-14 22:45:05 -04004#include "types.h" // u32
Kevin O'Connor01a85202009-10-18 09:49:59 -04005
Kevin O'Connor9d3c0632015-04-09 11:57:44 -04006#define SMBIOS_SIGNATURE 0x5f4d535f // "_SM_"
7
Kevin O'Connor01a85202009-10-18 09:49:59 -04008/* SMBIOS entry point -- must be written to a 16-bit aligned address
9 between 0xf0000 and 0xfffff.
10 */
11struct smbios_entry_point {
Kevin O'Connor9d3c0632015-04-09 11:57:44 -040012 u32 signature;
Kevin O'Connor01a85202009-10-18 09:49:59 -040013 u8 checksum;
14 u8 length;
15 u8 smbios_major_version;
16 u8 smbios_minor_version;
17 u16 max_structure_size;
18 u8 entry_point_revision;
19 u8 formatted_area[5];
20 char intermediate_anchor_string[5];
21 u8 intermediate_checksum;
22 u16 structure_table_length;
23 u32 structure_table_address;
24 u16 number_of_structures;
25 u8 smbios_bcd_revision;
26} PACKED;
27
Kevin O'Connor01a85202009-10-18 09:49:59 -040028/* This goes at the beginning of every SMBIOS structure. */
29struct smbios_structure_header {
30 u8 type;
31 u8 length;
32 u16 handle;
33} PACKED;
34
35/* SMBIOS type 0 - BIOS Information */
36struct smbios_type_0 {
37 struct smbios_structure_header header;
38 u8 vendor_str;
39 u8 bios_version_str;
40 u16 bios_starting_address_segment;
41 u8 bios_release_date_str;
42 u8 bios_rom_size;
43 u8 bios_characteristics[8];
44 u8 bios_characteristics_extension_bytes[2];
45 u8 system_bios_major_release;
46 u8 system_bios_minor_release;
47 u8 embedded_controller_major_release;
48 u8 embedded_controller_minor_release;
49} PACKED;
50
51/* SMBIOS type 1 - System Information */
52struct smbios_type_1 {
53 struct smbios_structure_header header;
54 u8 manufacturer_str;
55 u8 product_name_str;
56 u8 version_str;
57 u8 serial_number_str;
58 u8 uuid[16];
59 u8 wake_up_type;
60 u8 sku_number_str;
61 u8 family_str;
62} PACKED;
63
64/* SMBIOS type 3 - System Enclosure (v2.3) */
65struct smbios_type_3 {
66 struct smbios_structure_header header;
67 u8 manufacturer_str;
68 u8 type;
69 u8 version_str;
70 u8 serial_number_str;
71 u8 asset_tag_number_str;
72 u8 boot_up_state;
73 u8 power_supply_state;
74 u8 thermal_state;
75 u8 security_status;
76 u32 oem_defined;
77 u8 height;
78 u8 number_of_power_cords;
79 u8 contained_element_count;
80 // contained elements follow
81} PACKED;
82
83/* SMBIOS type 4 - Processor Information (v2.0) */
84struct smbios_type_4 {
85 struct smbios_structure_header header;
86 u8 socket_designation_str;
87 u8 processor_type;
88 u8 processor_family;
89 u8 processor_manufacturer_str;
90 u32 processor_id[2];
91 u8 processor_version_str;
92 u8 voltage;
93 u16 external_clock;
94 u16 max_speed;
95 u16 current_speed;
96 u8 status;
97 u8 processor_upgrade;
98 u16 l1_cache_handle;
99 u16 l2_cache_handle;
100 u16 l3_cache_handle;
101} PACKED;
102
103/* SMBIOS type 16 - Physical Memory Array
104 * Associated with one type 17 (Memory Device).
105 */
106struct smbios_type_16 {
107 struct smbios_structure_header header;
108 u8 location;
109 u8 use;
110 u8 error_correction;
111 u32 maximum_capacity;
112 u16 memory_error_information_handle;
113 u16 number_of_memory_devices;
114} PACKED;
115
116/* SMBIOS type 17 - Memory Device
117 * Associated with one type 19
118 */
119struct smbios_type_17 {
120 struct smbios_structure_header header;
121 u16 physical_memory_array_handle;
122 u16 memory_error_information_handle;
123 u16 total_width;
124 u16 data_width;
125 u16 size;
126 u8 form_factor;
127 u8 device_set;
128 u8 device_locator_str;
129 u8 bank_locator_str;
130 u8 memory_type;
131 u16 type_detail;
132} PACKED;
133
134/* SMBIOS type 19 - Memory Array Mapped Address */
135struct smbios_type_19 {
136 struct smbios_structure_header header;
137 u32 starting_address;
138 u32 ending_address;
139 u16 memory_array_handle;
140 u8 partition_width;
141} PACKED;
142
143/* SMBIOS type 20 - Memory Device Mapped Address */
144struct smbios_type_20 {
145 struct smbios_structure_header header;
146 u32 starting_address;
147 u32 ending_address;
148 u16 memory_device_handle;
149 u16 memory_array_mapped_address_handle;
150 u8 partition_row_position;
151 u8 interleave_position;
152 u8 interleaved_data_depth;
153} PACKED;
154
155/* SMBIOS type 32 - System Boot Information */
156struct smbios_type_32 {
157 struct smbios_structure_header header;
158 u8 reserved[6];
159 u8 boot_status;
160} PACKED;
161
162/* SMBIOS type 127 -- End-of-table */
163struct smbios_type_127 {
164 struct smbios_structure_header header;
165} PACKED;
166
Kevin O'Connor01a85202009-10-18 09:49:59 -0400167#endif // smbios.h