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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
721e992a BM |
2 | /* |
3 | * Copyright (C) 2015, Bin Meng <[email protected]> | |
4 | * | |
5 | * Adapted from coreboot src/arch/x86/smbios.c | |
721e992a BM |
6 | */ |
7 | ||
8 | #include <common.h> | |
7b51b576 | 9 | #include <env.h> |
a2505fc8 | 10 | #include <mapmem.h> |
4b6dddc2 AG |
11 | #include <smbios.h> |
12 | #include <tables_csum.h> | |
721e992a | 13 | #include <version.h> |
96476206 AG |
14 | #ifdef CONFIG_CPU |
15 | #include <cpu.h> | |
16 | #include <dm.h> | |
17 | #include <dm/uclass-internal.h> | |
18 | #endif | |
721e992a | 19 | |
721e992a BM |
20 | /** |
21 | * smbios_add_string() - add a string to the string area | |
22 | * | |
23 | * This adds a string to the string area which is appended directly after | |
24 | * the formatted portion of an SMBIOS structure. | |
25 | * | |
26 | * @start: string area start address | |
27 | * @str: string to add | |
28 | * @return: string number in the string area | |
29 | */ | |
30 | static int smbios_add_string(char *start, const char *str) | |
31 | { | |
32 | int i = 1; | |
33 | char *p = start; | |
00a871d3 HS |
34 | if (!*str) |
35 | str = "Unknown"; | |
721e992a BM |
36 | |
37 | for (;;) { | |
38 | if (!*p) { | |
39 | strcpy(p, str); | |
40 | p += strlen(str); | |
41 | *p++ = '\0'; | |
42 | *p++ = '\0'; | |
43 | ||
44 | return i; | |
45 | } | |
46 | ||
47 | if (!strcmp(p, str)) | |
48 | return i; | |
49 | ||
50 | p += strlen(p) + 1; | |
51 | i++; | |
52 | } | |
53 | } | |
54 | ||
55 | /** | |
56 | * smbios_string_table_len() - compute the string area size | |
57 | * | |
58 | * This computes the size of the string area including the string terminator. | |
59 | * | |
60 | * @start: string area start address | |
61 | * @return: string area size | |
62 | */ | |
63 | static int smbios_string_table_len(char *start) | |
64 | { | |
65 | char *p = start; | |
66 | int i, len = 0; | |
67 | ||
68 | while (*p) { | |
69 | i = strlen(p) + 1; | |
70 | p += i; | |
71 | len += i; | |
72 | } | |
73 | ||
74 | return len + 1; | |
75 | } | |
76 | ||
42fd8c19 | 77 | static int smbios_write_type0(ulong *current, int handle) |
721e992a | 78 | { |
a2505fc8 | 79 | struct smbios_type0 *t; |
721e992a BM |
80 | int len = sizeof(struct smbios_type0); |
81 | ||
a2505fc8 | 82 | t = map_sysmem(*current, len); |
721e992a BM |
83 | memset(t, 0, sizeof(struct smbios_type0)); |
84 | fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle); | |
85 | t->vendor = smbios_add_string(t->eos, "U-Boot"); | |
86 | t->bios_ver = smbios_add_string(t->eos, PLAIN_VERSION); | |
87 | t->bios_release_date = smbios_add_string(t->eos, U_BOOT_DMI_DATE); | |
e663b350 | 88 | #ifdef CONFIG_ROM_SIZE |
721e992a | 89 | t->bios_rom_size = (CONFIG_ROM_SIZE / 65536) - 1; |
e663b350 | 90 | #endif |
721e992a BM |
91 | t->bios_characteristics = BIOS_CHARACTERISTICS_PCI_SUPPORTED | |
92 | BIOS_CHARACTERISTICS_SELECTABLE_BOOT | | |
93 | BIOS_CHARACTERISTICS_UPGRADEABLE; | |
94 | #ifdef CONFIG_GENERATE_ACPI_TABLE | |
95 | t->bios_characteristics_ext1 = BIOS_CHARACTERISTICS_EXT1_ACPI; | |
e663b350 AG |
96 | #endif |
97 | #ifdef CONFIG_EFI_LOADER | |
98 | t->bios_characteristics_ext1 |= BIOS_CHARACTERISTICS_EXT1_UEFI; | |
721e992a BM |
99 | #endif |
100 | t->bios_characteristics_ext2 = BIOS_CHARACTERISTICS_EXT2_TARGET; | |
e663b350 | 101 | |
721e992a BM |
102 | t->bios_major_release = 0xff; |
103 | t->bios_minor_release = 0xff; | |
104 | t->ec_major_release = 0xff; | |
105 | t->ec_minor_release = 0xff; | |
106 | ||
107 | len = t->length + smbios_string_table_len(t->eos); | |
108 | *current += len; | |
a2505fc8 | 109 | unmap_sysmem(t); |
721e992a BM |
110 | |
111 | return len; | |
112 | } | |
113 | ||
42fd8c19 | 114 | static int smbios_write_type1(ulong *current, int handle) |
721e992a | 115 | { |
a2505fc8 | 116 | struct smbios_type1 *t; |
721e992a | 117 | int len = sizeof(struct smbios_type1); |
00caae6d | 118 | char *serial_str = env_get("serial#"); |
721e992a | 119 | |
a2505fc8 | 120 | t = map_sysmem(*current, len); |
721e992a BM |
121 | memset(t, 0, sizeof(struct smbios_type1)); |
122 | fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle); | |
4cdce9f5 BM |
123 | t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); |
124 | t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME); | |
6fb580d7 | 125 | if (serial_str) { |
5113ff8a | 126 | strncpy((char *)t->uuid, serial_str, sizeof(t->uuid)); |
6fb580d7 AG |
127 | t->serial_number = smbios_add_string(t->eos, serial_str); |
128 | } | |
721e992a BM |
129 | |
130 | len = t->length + smbios_string_table_len(t->eos); | |
131 | *current += len; | |
a2505fc8 | 132 | unmap_sysmem(t); |
721e992a BM |
133 | |
134 | return len; | |
135 | } | |
136 | ||
42fd8c19 | 137 | static int smbios_write_type2(ulong *current, int handle) |
721e992a | 138 | { |
a2505fc8 | 139 | struct smbios_type2 *t; |
721e992a BM |
140 | int len = sizeof(struct smbios_type2); |
141 | ||
a2505fc8 | 142 | t = map_sysmem(*current, len); |
721e992a BM |
143 | memset(t, 0, sizeof(struct smbios_type2)); |
144 | fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle); | |
4cdce9f5 BM |
145 | t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); |
146 | t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME); | |
721e992a BM |
147 | t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING; |
148 | t->board_type = SMBIOS_BOARD_MOTHERBOARD; | |
149 | ||
150 | len = t->length + smbios_string_table_len(t->eos); | |
151 | *current += len; | |
a2505fc8 | 152 | unmap_sysmem(t); |
721e992a BM |
153 | |
154 | return len; | |
155 | } | |
156 | ||
42fd8c19 | 157 | static int smbios_write_type3(ulong *current, int handle) |
721e992a | 158 | { |
a2505fc8 | 159 | struct smbios_type3 *t; |
721e992a BM |
160 | int len = sizeof(struct smbios_type3); |
161 | ||
a2505fc8 | 162 | t = map_sysmem(*current, len); |
721e992a BM |
163 | memset(t, 0, sizeof(struct smbios_type3)); |
164 | fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle); | |
4cdce9f5 | 165 | t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); |
721e992a BM |
166 | t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP; |
167 | t->bootup_state = SMBIOS_STATE_SAFE; | |
168 | t->power_supply_state = SMBIOS_STATE_SAFE; | |
169 | t->thermal_state = SMBIOS_STATE_SAFE; | |
170 | t->security_status = SMBIOS_SECURITY_NONE; | |
171 | ||
172 | len = t->length + smbios_string_table_len(t->eos); | |
173 | *current += len; | |
a2505fc8 | 174 | unmap_sysmem(t); |
721e992a BM |
175 | |
176 | return len; | |
177 | } | |
178 | ||
96476206 AG |
179 | static void smbios_write_type4_dm(struct smbios_type4 *t) |
180 | { | |
181 | u16 processor_family = SMBIOS_PROCESSOR_FAMILY_UNKNOWN; | |
182 | const char *vendor = "Unknown"; | |
183 | const char *name = "Unknown"; | |
184 | ||
185 | #ifdef CONFIG_CPU | |
186 | char processor_name[49]; | |
187 | char vendor_name[49]; | |
188 | struct udevice *dev = NULL; | |
189 | ||
190 | uclass_find_first_device(UCLASS_CPU, &dev); | |
191 | if (dev) { | |
192 | struct cpu_platdata *plat = dev_get_parent_platdata(dev); | |
193 | ||
194 | if (plat->family) | |
195 | processor_family = plat->family; | |
196 | t->processor_id[0] = plat->id[0]; | |
197 | t->processor_id[1] = plat->id[1]; | |
198 | ||
199 | if (!cpu_get_vendor(dev, vendor_name, sizeof(vendor_name))) | |
200 | vendor = vendor_name; | |
201 | if (!cpu_get_desc(dev, processor_name, sizeof(processor_name))) | |
202 | name = processor_name; | |
203 | } | |
204 | #endif | |
205 | ||
206 | t->processor_family = processor_family; | |
207 | t->processor_manufacturer = smbios_add_string(t->eos, vendor); | |
208 | t->processor_version = smbios_add_string(t->eos, name); | |
209 | } | |
210 | ||
42fd8c19 | 211 | static int smbios_write_type4(ulong *current, int handle) |
721e992a | 212 | { |
a2505fc8 | 213 | struct smbios_type4 *t; |
721e992a | 214 | int len = sizeof(struct smbios_type4); |
721e992a | 215 | |
a2505fc8 | 216 | t = map_sysmem(*current, len); |
721e992a BM |
217 | memset(t, 0, sizeof(struct smbios_type4)); |
218 | fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle); | |
219 | t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL; | |
96476206 | 220 | smbios_write_type4_dm(t); |
721e992a BM |
221 | t->status = SMBIOS_PROCESSOR_STATUS_ENABLED; |
222 | t->processor_upgrade = SMBIOS_PROCESSOR_UPGRADE_NONE; | |
223 | t->l1_cache_handle = 0xffff; | |
224 | t->l2_cache_handle = 0xffff; | |
225 | t->l3_cache_handle = 0xffff; | |
226 | t->processor_family2 = t->processor_family; | |
227 | ||
228 | len = t->length + smbios_string_table_len(t->eos); | |
229 | *current += len; | |
a2505fc8 | 230 | unmap_sysmem(t); |
721e992a BM |
231 | |
232 | return len; | |
233 | } | |
234 | ||
42fd8c19 | 235 | static int smbios_write_type32(ulong *current, int handle) |
721e992a | 236 | { |
a2505fc8 | 237 | struct smbios_type32 *t; |
721e992a BM |
238 | int len = sizeof(struct smbios_type32); |
239 | ||
a2505fc8 | 240 | t = map_sysmem(*current, len); |
721e992a BM |
241 | memset(t, 0, sizeof(struct smbios_type32)); |
242 | fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle); | |
243 | ||
244 | *current += len; | |
a2505fc8 | 245 | unmap_sysmem(t); |
721e992a BM |
246 | |
247 | return len; | |
248 | } | |
249 | ||
42fd8c19 | 250 | static int smbios_write_type127(ulong *current, int handle) |
721e992a | 251 | { |
a2505fc8 | 252 | struct smbios_type127 *t; |
721e992a BM |
253 | int len = sizeof(struct smbios_type127); |
254 | ||
a2505fc8 | 255 | t = map_sysmem(*current, len); |
721e992a BM |
256 | memset(t, 0, sizeof(struct smbios_type127)); |
257 | fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle); | |
258 | ||
259 | *current += len; | |
a2505fc8 | 260 | unmap_sysmem(t); |
721e992a BM |
261 | |
262 | return len; | |
263 | } | |
264 | ||
265 | static smbios_write_type smbios_write_funcs[] = { | |
266 | smbios_write_type0, | |
267 | smbios_write_type1, | |
268 | smbios_write_type2, | |
269 | smbios_write_type3, | |
270 | smbios_write_type4, | |
271 | smbios_write_type32, | |
272 | smbios_write_type127 | |
273 | }; | |
274 | ||
42fd8c19 | 275 | ulong write_smbios_table(ulong addr) |
721e992a BM |
276 | { |
277 | struct smbios_entry *se; | |
a2505fc8 | 278 | ulong table_addr; |
42fd8c19 | 279 | ulong tables; |
721e992a BM |
280 | int len = 0; |
281 | int max_struct_size = 0; | |
282 | int handle = 0; | |
283 | char *istart; | |
284 | int isize; | |
285 | int i; | |
286 | ||
287 | /* 16 byte align the table address */ | |
288 | addr = ALIGN(addr, 16); | |
289 | ||
a2505fc8 | 290 | se = map_sysmem(addr, sizeof(struct smbios_entry)); |
721e992a BM |
291 | memset(se, 0, sizeof(struct smbios_entry)); |
292 | ||
293 | addr += sizeof(struct smbios_entry); | |
294 | addr = ALIGN(addr, 16); | |
295 | tables = addr; | |
296 | ||
297 | /* populate minimum required tables */ | |
298 | for (i = 0; i < ARRAY_SIZE(smbios_write_funcs); i++) { | |
42fd8c19 | 299 | int tmp = smbios_write_funcs[i]((ulong *)&addr, handle++); |
60a4df32 | 300 | |
721e992a BM |
301 | max_struct_size = max(max_struct_size, tmp); |
302 | len += tmp; | |
303 | } | |
304 | ||
305 | memcpy(se->anchor, "_SM_", 4); | |
306 | se->length = sizeof(struct smbios_entry); | |
307 | se->major_ver = SMBIOS_MAJOR_VER; | |
308 | se->minor_ver = SMBIOS_MINOR_VER; | |
309 | se->max_struct_size = max_struct_size; | |
310 | memcpy(se->intermediate_anchor, "_DMI_", 5); | |
311 | se->struct_table_length = len; | |
a2505fc8 SG |
312 | |
313 | /* | |
314 | * We must use a pointer here so things work correctly on sandbox. The | |
315 | * user of this table is not aware of the mapping of addresses to | |
316 | * sandbox's DRAM buffer. | |
317 | */ | |
318 | table_addr = (ulong)map_sysmem(tables, 0); | |
319 | if (sizeof(table_addr) > sizeof(u32) && table_addr > (ulong)UINT_MAX) { | |
320 | /* | |
321 | * We need to put this >32-bit pointer into the table but the | |
322 | * field is only 32 bits wide. | |
323 | */ | |
324 | printf("WARNING: SMBIOS table_address overflow %llx\n", | |
325 | (unsigned long long)table_addr); | |
326 | table_addr = 0; | |
327 | } | |
328 | se->struct_table_address = table_addr; | |
329 | ||
721e992a BM |
330 | se->struct_count = handle; |
331 | ||
332 | /* calculate checksums */ | |
333 | istart = (char *)se + SMBIOS_INTERMEDIATE_OFFSET; | |
334 | isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET; | |
335 | se->intermediate_checksum = table_compute_checksum(istart, isize); | |
336 | se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry)); | |
a2505fc8 | 337 | unmap_sysmem(se); |
721e992a BM |
338 | |
339 | return addr; | |
340 | } |