xref: /openbmc/qemu/include/hw/firmware/smbios.h (revision 99d423e5)
1 #ifndef QEMU_SMBIOS_H
2 #define QEMU_SMBIOS_H
3 
4 /*
5  * SMBIOS Support
6  *
7  * Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
8  *
9  * Authors:
10  *  Alex Williamson <alex.williamson@hp.com>
11  *
12  * This work is licensed under the terms of the GNU GPL, version 2.  See
13  * the COPYING file in the top-level directory.
14  *
15  */
16 
17 
18 #define SMBIOS_MAX_TYPE 127
19 
20 /* memory area description, used by type 19 table */
21 struct smbios_phys_mem_area {
22     uint64_t address;
23     uint64_t length;
24 };
25 
26 /*
27  * SMBIOS spec defined tables
28  */
29 typedef enum SmbiosEntryPointType {
30     SMBIOS_ENTRY_POINT_21,
31     SMBIOS_ENTRY_POINT_30,
32 } SmbiosEntryPointType;
33 
34 /* SMBIOS Entry Point
35  * There are two types of entry points defined in the SMBIOS specification
36  * (see below). BIOS must place the entry point(s) at a 16-byte-aligned
37  * address between 0xf0000 and 0xfffff. Note that either entry point type
38  * can be used in a 64-bit target system, except that SMBIOS 2.1 entry point
39  * only allows the SMBIOS struct table to reside below 4GB address space.
40  */
41 
42 /* SMBIOS 2.1 (32-bit) Entry Point
43  *  - introduced since SMBIOS 2.1
44  *  - supports structure table below 4GB only
45  */
46 struct smbios_21_entry_point {
47     uint8_t anchor_string[4];
48     uint8_t checksum;
49     uint8_t length;
50     uint8_t smbios_major_version;
51     uint8_t smbios_minor_version;
52     uint16_t max_structure_size;
53     uint8_t entry_point_revision;
54     uint8_t formatted_area[5];
55     uint8_t intermediate_anchor_string[5];
56     uint8_t intermediate_checksum;
57     uint16_t structure_table_length;
58     uint32_t structure_table_address;
59     uint16_t number_of_structures;
60     uint8_t smbios_bcd_revision;
61 } QEMU_PACKED;
62 
63 /* SMBIOS 3.0 (64-bit) Entry Point
64  *  - introduced since SMBIOS 3.0
65  *  - supports structure table at 64-bit address space
66  */
67 struct smbios_30_entry_point {
68     uint8_t anchor_string[5];
69     uint8_t checksum;
70     uint8_t length;
71     uint8_t smbios_major_version;
72     uint8_t smbios_minor_version;
73     uint8_t smbios_doc_rev;
74     uint8_t entry_point_revision;
75     uint8_t reserved;
76     uint32_t structure_table_max_size;
77     uint64_t structure_table_address;
78 } QEMU_PACKED;
79 
80 typedef union {
81     struct smbios_21_entry_point ep21;
82     struct smbios_30_entry_point ep30;
83 } QEMU_PACKED SmbiosEntryPoint;
84 
85 /* This goes at the beginning of every SMBIOS structure. */
86 struct smbios_structure_header {
87     uint8_t type;
88     uint8_t length;
89     uint16_t handle;
90 } QEMU_PACKED;
91 
92 /* SMBIOS type 0 - BIOS Information */
93 struct smbios_type_0 {
94     struct smbios_structure_header header;
95     uint8_t vendor_str;
96     uint8_t bios_version_str;
97     uint16_t bios_starting_address_segment;
98     uint8_t bios_release_date_str;
99     uint8_t bios_rom_size;
100     uint64_t bios_characteristics;
101     uint8_t bios_characteristics_extension_bytes[2];
102     uint8_t system_bios_major_release;
103     uint8_t system_bios_minor_release;
104     uint8_t embedded_controller_major_release;
105     uint8_t embedded_controller_minor_release;
106 } QEMU_PACKED;
107 
108 /* UUID encoding. The time_* fields are little-endian, as specified by SMBIOS
109  * version 2.6.
110  */
111 struct smbios_uuid {
112     uint32_t time_low;
113     uint16_t time_mid;
114     uint16_t time_hi_and_version;
115     uint8_t clock_seq_hi_and_reserved;
116     uint8_t clock_seq_low;
117     uint8_t node[6];
118 } QEMU_PACKED;
119 
120 /* SMBIOS type 1 - System Information */
121 struct smbios_type_1 {
122     struct smbios_structure_header header;
123     uint8_t manufacturer_str;
124     uint8_t product_name_str;
125     uint8_t version_str;
126     uint8_t serial_number_str;
127     struct smbios_uuid uuid;
128     uint8_t wake_up_type;
129     uint8_t sku_number_str;
130     uint8_t family_str;
131 } QEMU_PACKED;
132 
133 /* SMBIOS type 2 - Base Board */
134 struct smbios_type_2 {
135     struct smbios_structure_header header;
136     uint8_t manufacturer_str;
137     uint8_t product_str;
138     uint8_t version_str;
139     uint8_t serial_number_str;
140     uint8_t asset_tag_number_str;
141     uint8_t feature_flags;
142     uint8_t location_str;
143     uint16_t chassis_handle;
144     uint8_t board_type;
145     uint8_t contained_element_count;
146     /* contained elements follow */
147 } QEMU_PACKED;
148 
149 /* SMBIOS type 3 - System Enclosure (v2.7) */
150 struct smbios_type_3 {
151     struct smbios_structure_header header;
152     uint8_t manufacturer_str;
153     uint8_t type;
154     uint8_t version_str;
155     uint8_t serial_number_str;
156     uint8_t asset_tag_number_str;
157     uint8_t boot_up_state;
158     uint8_t power_supply_state;
159     uint8_t thermal_state;
160     uint8_t security_status;
161     uint32_t oem_defined;
162     uint8_t height;
163     uint8_t number_of_power_cords;
164     uint8_t contained_element_count;
165     uint8_t contained_element_record_length;
166     uint8_t sku_number_str;
167     /* contained elements follow */
168 } QEMU_PACKED;
169 
170 /* SMBIOS type 4 - Processor Information (v2.6) */
171 struct smbios_type_4 {
172     struct smbios_structure_header header;
173     uint8_t socket_designation_str;
174     uint8_t processor_type;
175     uint8_t processor_family;
176     uint8_t processor_manufacturer_str;
177     uint32_t processor_id[2];
178     uint8_t processor_version_str;
179     uint8_t voltage;
180     uint16_t external_clock;
181     uint16_t max_speed;
182     uint16_t current_speed;
183     uint8_t status;
184     uint8_t processor_upgrade;
185     uint16_t l1_cache_handle;
186     uint16_t l2_cache_handle;
187     uint16_t l3_cache_handle;
188     uint8_t serial_number_str;
189     uint8_t asset_tag_number_str;
190     uint8_t part_number_str;
191     uint8_t core_count;
192     uint8_t core_enabled;
193     uint8_t thread_count;
194     uint16_t processor_characteristics;
195     uint16_t processor_family2;
196 } QEMU_PACKED;
197 
198 /* SMBIOS type 11 - OEM strings */
199 struct smbios_type_11 {
200     struct smbios_structure_header header;
201     uint8_t count;
202 } QEMU_PACKED;
203 
204 /* SMBIOS type 16 - Physical Memory Array (v2.7) */
205 struct smbios_type_16 {
206     struct smbios_structure_header header;
207     uint8_t location;
208     uint8_t use;
209     uint8_t error_correction;
210     uint32_t maximum_capacity;
211     uint16_t memory_error_information_handle;
212     uint16_t number_of_memory_devices;
213     uint64_t extended_maximum_capacity;
214 } QEMU_PACKED;
215 
216 /* SMBIOS type 17 - Memory Device (v2.8) */
217 struct smbios_type_17 {
218     struct smbios_structure_header header;
219     uint16_t physical_memory_array_handle;
220     uint16_t memory_error_information_handle;
221     uint16_t total_width;
222     uint16_t data_width;
223     uint16_t size;
224     uint8_t form_factor;
225     uint8_t device_set;
226     uint8_t device_locator_str;
227     uint8_t bank_locator_str;
228     uint8_t memory_type;
229     uint16_t type_detail;
230     uint16_t speed;
231     uint8_t manufacturer_str;
232     uint8_t serial_number_str;
233     uint8_t asset_tag_number_str;
234     uint8_t part_number_str;
235     uint8_t attributes;
236     uint32_t extended_size;
237     uint16_t configured_clock_speed;
238     uint16_t minimum_voltage;
239     uint16_t maximum_voltage;
240     uint16_t configured_voltage;
241 } QEMU_PACKED;
242 
243 /* SMBIOS type 19 - Memory Array Mapped Address (v2.7) */
244 struct smbios_type_19 {
245     struct smbios_structure_header header;
246     uint32_t starting_address;
247     uint32_t ending_address;
248     uint16_t memory_array_handle;
249     uint8_t partition_width;
250     uint64_t extended_starting_address;
251     uint64_t extended_ending_address;
252 } QEMU_PACKED;
253 
254 /* SMBIOS type 32 - System Boot Information */
255 struct smbios_type_32 {
256     struct smbios_structure_header header;
257     uint8_t reserved[6];
258     uint8_t boot_status;
259 } QEMU_PACKED;
260 
261 /* SMBIOS type 127 -- End-of-table */
262 struct smbios_type_127 {
263     struct smbios_structure_header header;
264 } QEMU_PACKED;
265 
266 void smbios_entry_add(QemuOpts *opts, Error **errp);
267 void smbios_set_cpuid(uint32_t version, uint32_t features);
268 void smbios_set_defaults(const char *manufacturer, const char *product,
269                          const char *version, bool legacy_mode,
270                          bool uuid_encoded, SmbiosEntryPointType ep_type);
271 uint8_t *smbios_get_table_legacy(size_t *length);
272 void smbios_get_tables(const struct smbios_phys_mem_area *mem_array,
273                        const unsigned int mem_array_size,
274                        uint8_t **tables, size_t *tables_len,
275                        uint8_t **anchor, size_t *anchor_len);
276 #endif /* QEMU_SMBIOS_H */
277