/* * This file is part of the coreboot project. * * Copyright (C) 2015 Timothy Pearson , * Raptor Engineering * Copyright (C) 2011 Sven Schnelle * Copyright (C) 2018 Patrick Rudolph * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; version 2 of * the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #if IS_ENABLED(CONFIG_CHROMEOS) #include #endif static u8 smbios_checksum(u8 *p, u32 length) { u8 ret = 0; while (length--) ret += *p++; return -ret; } int smbios_add_string(u8 *start, const char *str) { int i = 1; char *p = (char *)start; /* * Return 0 as required for empty strings. * See Section 6.1.3 "Text Strings" of the SMBIOS specification. */ if (*str == '\0') return 0; for (;;) { if (!*p) { strcpy(p, str); p += strlen(str); *p++ = '\0'; *p++ = '\0'; return i; } if (!strcmp(p, str)) return i; p += strlen(p)+1; i++; } } int smbios_string_table_len(u8 *start) { char *p = (char *)start; int i, len = 0; while (*p) { i = strlen(p) + 1; p += i; len += i; } if (!len) return 2; return len + 1; } static int smbios_cpu_vendor(u8 *start) { if (cpu_have_cpuid()) { u32 tmp[4]; const struct cpuid_result res = cpuid(0); tmp[0] = res.ebx; tmp[1] = res.edx; tmp[2] = res.ecx; tmp[3] = 0; return smbios_add_string(start, (const char *)tmp); } else { return smbios_add_string(start, "Unknown"); } } static int smbios_processor_name(u8 *start) { u32 tmp[13]; const char *str = "Unknown Processor Name"; if (cpu_have_cpuid()) { int i; struct cpuid_result res = cpuid(0x80000000); if (res.eax >= 0x80000004) { int j = 0; for (i = 0; i < 3; i++) { res = cpuid(0x80000002 + i); tmp[j++] = res.eax; tmp[j++] = res.ebx; tmp[j++] = res.ecx; tmp[j++] = res.edx; } tmp[12] = 0; str = (const char *)tmp; } } return smbios_add_string(start, str); } /* this function will fill the corresponding manufacturer */ void smbios_fill_dimm_manufacturer_from_id(uint16_t mod_id, struct smbios_type17 *t) { switch (mod_id) { case 0x2c80: t->manufacturer = smbios_add_string(t->eos, "Crucial"); break; case 0x4304: t->manufacturer = smbios_add_string(t->eos, "Ramaxel"); break; case 0x4f01: t->manufacturer = smbios_add_string(t->eos, "Transcend"); break; case 0x9801: t->manufacturer = smbios_add_string(t->eos, "Kingston"); break; case 0x987f: t->manufacturer = smbios_add_string(t->eos, "Hynix"); break; case 0x9e02: t->manufacturer = smbios_add_string(t->eos, "Corsair"); break; case 0xb004: t->manufacturer = smbios_add_string(t->eos, "OCZ"); break; case 0xad80: t->manufacturer = smbios_add_string(t->eos, "Hynix/Hyundai"); break; case 0xb502: t->manufacturer = smbios_add_string(t->eos, "SuperTalent"); break; case 0xcd04: t->manufacturer = smbios_add_string(t->eos, "GSkill"); break; case 0xce80: t->manufacturer = smbios_add_string(t->eos, "Samsung"); break; case 0xfe02: t->manufacturer = smbios_add_string(t->eos, "Elpida"); break; case 0xff2c: t->manufacturer = smbios_add_string(t->eos, "Micron"); break; default: { char string_buffer[256]; snprintf(string_buffer, sizeof(string_buffer), "Unknown (%x)", mod_id); t->manufacturer = smbios_add_string(t->eos, string_buffer); break; } } } static void trim_trailing_whitespace(char *buffer, size_t buffer_size) { size_t len = strnlen(buffer, buffer_size); if (len == 0) return; for (char *p = buffer + len - 1; p >= buffer; --p) { if (*p == ' ') *p = 0; else break; } } /** This function will fill the corresponding part number */ static void smbios_fill_dimm_part_number(const char *part_number, struct smbios_type17 *t) { const size_t trimmed_buffer_size = DIMM_INFO_PART_NUMBER_SIZE; int invalid; size_t i, len; char trimmed_part_number[trimmed_buffer_size]; strncpy(trimmed_part_number, part_number, trimmed_buffer_size); trimmed_part_number[trimmed_buffer_size - 1] = '\0'; /* * SPD mandates that unused characters be represented with a ' '. * We don't want to publish the whitespace in the SMBIOS tables. */ trim_trailing_whitespace(trimmed_part_number, trimmed_buffer_size); len = strlen(trimmed_part_number); invalid = 0; /* assume valid */ for (i = 0; i < len; i++) { if (trimmed_part_number[i] < ' ') { invalid = 1; trimmed_part_number[i] = '*'; } } if (len == 0) { /* Null String in Part Number will have "None" instead. */ t->part_number = smbios_add_string(t->eos, "None"); } else if (invalid) { char string_buffer[trimmed_buffer_size + 10 /* strlen("Invalid ()") */]; snprintf(string_buffer, sizeof(string_buffer), "Invalid (%s)", trimmed_part_number); t->part_number = smbios_add_string(t->eos, string_buffer); } else { t->part_number = smbios_add_string(t->eos, trimmed_part_number); } } /* Encodes the SPD serial number into hex */ static void smbios_fill_dimm_serial_number(const struct dimm_info *dimm, struct smbios_type17 *t) { char serial[9]; snprintf(serial, sizeof(serial), "%02hhx%02hhx%02hhx%02hhx", dimm->serial[0], dimm->serial[1], dimm->serial[2], dimm->serial[3]); t->serial_number = smbios_add_string(t->eos, serial); } static int create_smbios_type17_for_dimm(struct dimm_info *dimm, unsigned long *current, int *handle) { struct smbios_type17 *t = (struct smbios_type17 *)*current; char locator[40]; memset(t, 0, sizeof(struct smbios_type17)); t->memory_type = dimm->ddr_type; t->clock_speed = dimm->ddr_frequency; t->speed = dimm->ddr_frequency; t->type = SMBIOS_MEMORY_DEVICE; if (dimm->dimm_size < 0x7fff) { t->size = dimm->dimm_size; } else { t->size = 0x7fff; t->extended_size = dimm->dimm_size & 0x7fffffff; } t->data_width = 8 * (1 << (dimm->bus_width & 0x7)); t->total_width = t->data_width + 8 * ((dimm->bus_width & 0x18) >> 3); switch (dimm->mod_type) { case SPD_RDIMM: case SPD_MINI_RDIMM: t->form_factor = MEMORY_FORMFACTOR_RIMM; break; case SPD_UDIMM: case SPD_MICRO_DIMM: case SPD_MINI_UDIMM: t->form_factor = MEMORY_FORMFACTOR_DIMM; break; case SPD_SODIMM: t->form_factor = MEMORY_FORMFACTOR_SODIMM; break; default: t->form_factor = MEMORY_FORMFACTOR_UNKNOWN; break; } smbios_fill_dimm_manufacturer_from_id(dimm->mod_id, t); smbios_fill_dimm_serial_number(dimm, t); snprintf(locator, sizeof(locator), "Channel-%d-DIMM-%d", dimm->channel_num, dimm->dimm_num); t->device_locator = smbios_add_string(t->eos, locator); snprintf(locator, sizeof(locator), "BANK %d", dimm->bank_locator); t->bank_locator = smbios_add_string(t->eos, locator); /* put '\0' in the end of data */ dimm->module_part_number[DIMM_INFO_PART_NUMBER_SIZE - 1] = '\0'; smbios_fill_dimm_part_number((char *)dimm->module_part_number, t); /* Synchronous = 1 */ t->type_detail = 0x0080; /* no handle for error information */ t->memory_error_information_handle = 0xFFFE; t->attributes = dimm->rank_per_dimm; t->handle = *handle; *handle += 1; t->length = sizeof(struct smbios_type17) - 2; return t->length + smbios_string_table_len(t->eos); } const char *__weak smbios_mainboard_bios_version(void) { if (strlen(CONFIG_LOCALVERSION)) return CONFIG_LOCALVERSION; else return coreboot_version; } static int smbios_write_type0(unsigned long *current, int handle) { struct smbios_type0 *t = (struct smbios_type0 *)*current; int len = sizeof(struct smbios_type0); memset(t, 0, sizeof(struct smbios_type0)); t->type = SMBIOS_BIOS_INFORMATION; t->handle = handle; t->length = len - 2; t->vendor = smbios_add_string(t->eos, "coreboot"); #if !IS_ENABLED(CONFIG_CHROMEOS) t->bios_release_date = smbios_add_string(t->eos, coreboot_dmi_date); t->bios_version = smbios_add_string(t->eos, smbios_mainboard_bios_version()); #else #define SPACES \ " " t->bios_release_date = smbios_add_string(t->eos, coreboot_dmi_date); #if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES) u32 version_offset = (u32)smbios_string_table_len(t->eos); #endif t->bios_version = smbios_add_string(t->eos, SPACES); #if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES) /* SMBIOS offsets start at 1 rather than 0 */ chromeos_get_chromeos_acpi()->vbt10 = (u32)t->eos + (version_offset - 1); #endif #endif /* CONFIG_CHROMEOS */ uint32_t rom_size = CONFIG_ROM_SIZE; rom_size = MIN(CONFIG_ROM_SIZE, 16 * MiB); t->bios_rom_size = (rom_size / 65535) - 1; if (CONFIG_ROM_SIZE >= 1 * GiB) { t->extended_bios_rom_size = DIV_ROUND_UP(CONFIG_ROM_SIZE, GiB) | (1 << 14); } else { t->extended_bios_rom_size = DIV_ROUND_UP(CONFIG_ROM_SIZE, MiB); } t->system_bios_major_release = coreboot_major_revision; t->system_bios_minor_release = coreboot_minor_revision; t->bios_characteristics = BIOS_CHARACTERISTICS_PCI_SUPPORTED | BIOS_CHARACTERISTICS_SELECTABLE_BOOT | BIOS_CHARACTERISTICS_UPGRADEABLE; if (IS_ENABLED(CONFIG_CARDBUS_PLUGIN_SUPPORT)) t->bios_characteristics |= BIOS_CHARACTERISTICS_PC_CARD; if (IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)) t->bios_characteristics_ext1 = BIOS_EXT1_CHARACTERISTICS_ACPI; t->bios_characteristics_ext2 = BIOS_EXT2_CHARACTERISTICS_TARGET; len = t->length + smbios_string_table_len(t->eos); *current += len; return len; } #if !IS_ENABLED(CONFIG_SMBIOS_PROVIDED_BY_MOBO) const char *__weak smbios_mainboard_serial_number(void) { return CONFIG_MAINBOARD_SERIAL_NUMBER; } const char *__weak smbios_mainboard_version(void) { return CONFIG_MAINBOARD_VERSION; } const char *__weak smbios_mainboard_manufacturer(void) { return CONFIG_MAINBOARD_SMBIOS_MANUFACTURER; } const char *__weak smbios_mainboard_product_name(void) { return CONFIG_MAINBOARD_SMBIOS_PRODUCT_NAME; } void __weak smbios_mainboard_set_uuid(u8 *uuid) { /* leave all zero */ } #endif const char *__weak smbios_mainboard_asset_tag(void) { return ""; } u8 __weak smbios_mainboard_feature_flags(void) { return 0; } const char *__weak smbios_mainboard_location_in_chassis(void) { return ""; } smbios_board_type __weak smbios_mainboard_board_type(void) { return SMBIOS_BOARD_TYPE_UNKNOWN; } const char *__weak smbios_mainboard_sku(void) { return ""; } #ifdef CONFIG_MAINBOARD_FAMILY const char *smbios_mainboard_family(void) { return CONFIG_MAINBOARD_FAMILY; } #endif /* CONFIG_MAINBOARD_FAMILY */ static int smbios_write_type1(unsigned long *current, int handle) { struct smbios_type1 *t = (struct smbios_type1 *)*current; int len = sizeof(struct smbios_type1); memset(t, 0, sizeof(struct smbios_type1)); t->type = SMBIOS_SYSTEM_INFORMATION; t->handle = handle; t->length = len - 2; t->manufacturer = smbios_add_string(t->eos, smbios_mainboard_manufacturer()); t->product_name = smbios_add_string(t->eos, smbios_mainboard_product_name()); t->serial_number = smbios_add_string(t->eos, smbios_mainboard_serial_number()); t->sku = smbios_add_string(t->eos, smbios_mainboard_sku()); t->version = smbios_add_string(t->eos, smbios_mainboard_version()); #ifdef CONFIG_MAINBOARD_FAMILY t->family = smbios_add_string(t->eos, smbios_mainboard_family()); #endif smbios_mainboard_set_uuid(t->uuid); len = t->length + smbios_string_table_len(t->eos); *current += len; return len; } static int smbios_write_type2(unsigned long *current, int handle, const int chassis_handle) { struct smbios_type2 *t = (struct smbios_type2 *)*current; int len = sizeof(struct smbios_type2); memset(t, 0, sizeof(struct smbios_type2)); t->type = SMBIOS_BOARD_INFORMATION; t->handle = handle; t->length = len - 2; t->manufacturer = smbios_add_string(t->eos, smbios_mainboard_manufacturer()); t->product_name = smbios_add_string(t->eos, smbios_mainboard_product_name()); t->serial_number = smbios_add_string(t->eos, smbios_mainboard_serial_number()); t->version = smbios_add_string(t->eos, smbios_mainboard_version()); t->asset_tag = smbios_add_string(t->eos, smbios_mainboard_asset_tag()); t->feature_flags = smbios_mainboard_feature_flags(); t->location_in_chassis = smbios_add_string(t->eos, smbios_mainboard_location_in_chassis()); t->board_type = smbios_mainboard_board_type(); t->chassis_handle = chassis_handle; len = t->length + smbios_string_table_len(t->eos); *current += len; return len; } static int smbios_write_type3(unsigned long *current, int handle) { struct smbios_type3 *t = (struct smbios_type3 *)*current; int len = sizeof(struct smbios_type3); memset(t, 0, sizeof(struct smbios_type3)); t->type = SMBIOS_SYSTEM_ENCLOSURE; t->handle = handle; t->length = len - 2; t->manufacturer = smbios_add_string(t->eos, smbios_mainboard_manufacturer()); t->bootup_state = SMBIOS_STATE_SAFE; t->power_supply_state = SMBIOS_STATE_SAFE; t->thermal_state = SMBIOS_STATE_SAFE; t->_type = CONFIG_SMBIOS_ENCLOSURE_TYPE; t->security_status = SMBIOS_STATE_SAFE; len = t->length + smbios_string_table_len(t->eos); *current += len; return len; } static int smbios_write_type4(unsigned long *current, int handle) { struct cpuid_result res; struct smbios_type4 *t = (struct smbios_type4 *)*current; int len = sizeof(struct smbios_type4); /* Provide sane defaults even for CPU without CPUID */ res.eax = res.edx = 0; res.ebx = 0x10000; if (cpu_have_cpuid()) res = cpuid(1); memset(t, 0, sizeof(struct smbios_type4)); t->type = SMBIOS_PROCESSOR_INFORMATION; t->handle = handle; t->length = len - 2; t->processor_id[0] = res.eax; t->processor_id[1] = res.edx; t->processor_manufacturer = smbios_cpu_vendor(t->eos); t->processor_version = smbios_processor_name(t->eos); t->processor_family = (res.eax > 0) ? 0x0c : 0x6; t->processor_type = 3; /* System Processor */ t->core_count = (res.ebx >> 16) & 0xff; t->l1_cache_handle = 0xffff; t->l2_cache_handle = 0xffff; t->l3_cache_handle = 0xffff; t->processor_upgrade = 1; len = t->length + smbios_string_table_len(t->eos); *current += len; return len; } static int smbios_write_type11(unsigned long *current, int *handle) { struct smbios_type11 *t = (struct smbios_type11 *)*current; int len; struct device *dev; memset(t, 0, sizeof(*t)); t->type = SMBIOS_OEM_STRINGS; t->handle = *handle; t->length = len = sizeof(*t) - 2; for (dev = all_devices; dev; dev = dev->next) { if (dev->ops && dev->ops->get_smbios_strings) dev->ops->get_smbios_strings(dev, t); } if (t->count == 0) { memset(t, 0, sizeof(*t)); return 0; } len += smbios_string_table_len(t->eos); *current += len; (*handle)++; return len; } static int smbios_write_type17(unsigned long *current, int *handle) { int len = sizeof(struct smbios_type17); int totallen = 0; int i; struct memory_info *meminfo; meminfo = cbmem_find(CBMEM_ID_MEMINFO); if (meminfo == NULL) return 0; /* can't find mem info in cbmem */ printk(BIOS_INFO, "Create SMBIOS type 17\n"); for (i = 0; i < meminfo->dimm_cnt && i < ARRAY_SIZE(meminfo->dimm); i++) { struct dimm_info *dimm; dimm = &meminfo->dimm[i]; len = create_smbios_type17_for_dimm(dimm, current, handle); *current += len; totallen += len; } return totallen; } static int smbios_write_type32(unsigned long *current, int handle) { struct smbios_type32 *t = (struct smbios_type32 *)*current; int len = sizeof(struct smbios_type32); memset(t, 0, sizeof(struct smbios_type32)); t->type = SMBIOS_SYSTEM_BOOT_INFORMATION; t->handle = handle; t->length = len - 2; *current += len; return len; } int smbios_write_type38(unsigned long *current, int *handle, const enum smbios_bmc_interface_type interface_type, const u8 ipmi_rev, const u8 i2c_addr, const u8 nv_addr, const u64 base_addr, const u8 base_modifier, const u8 irq) { struct smbios_type38 *t = (struct smbios_type38 *)*current; int len = sizeof(struct smbios_type38); memset(t, 0, sizeof(struct smbios_type38)); t->type = SMBIOS_IPMI_DEVICE_INFORMATION; t->handle = *handle; t->length = len - 2; t->interface_type = interface_type; t->ipmi_rev = ipmi_rev; t->i2c_slave_addr = i2c_addr; t->nv_storage_addr = nv_addr; t->base_address = base_addr; t->base_address_modifier = base_modifier; t->irq = irq; *current += len; *handle += 1; return len; } int smbios_write_type41(unsigned long *current, int *handle, const char *name, u8 instance, u16 segment, u8 bus, u8 device, u8 function) { struct smbios_type41 *t = (struct smbios_type41 *)*current; int len = sizeof(struct smbios_type41); memset(t, 0, sizeof(struct smbios_type41)); t->type = SMBIOS_ONBOARD_DEVICES_EXTENDED_INFORMATION; t->handle = *handle; t->length = len - 2; t->reference_designation = smbios_add_string(t->eos, name); t->device_type = SMBIOS_DEVICE_TYPE_OTHER; t->device_status = 1; t->device_type_instance = instance; t->segment_group_number = segment; t->bus_number = bus; t->device_number = device; t->function_number = function; len = t->length + smbios_string_table_len(t->eos); *current += len; *handle += 1; return len; } static int smbios_write_type127(unsigned long *current, int handle) { struct smbios_type127 *t = (struct smbios_type127 *)*current; int len = sizeof(struct smbios_type127); memset(t, 0, sizeof(struct smbios_type127)); t->type = SMBIOS_END_OF_TABLE; t->handle = handle; t->length = len - 2; *current += len; return len; } static int smbios_walk_device_tree(struct device *tree, int *handle, unsigned long *current) { struct device *dev; int len = 0; for (dev = tree; dev; dev = dev->next) { if (dev->enabled && dev->ops && dev->ops->get_smbios_data) { printk(BIOS_INFO, "%s (%s)\n", dev_path(dev), dev_name(dev)); len += dev->ops->get_smbios_data(dev, handle, current); } } return len; } #define update_max(len, max_len, stmt) \ do { \ int tmp = stmt; \ \ max_len = MAX(max_len, tmp); \ len += tmp; \ } while (0) unsigned long smbios_write_tables(unsigned long current) { struct smbios_entry *se; unsigned long tables; int len = 0; int max_struct_size = 0; int handle = 0; current = ALIGN(current, 16); printk(BIOS_DEBUG, "%s: %08lx\n", __func__, current); se = (struct smbios_entry *)current; current += sizeof(struct smbios_entry); current = ALIGN(current, 16); tables = current; update_max(len, max_struct_size, smbios_write_type0(¤t, handle++)); update_max(len, max_struct_size, smbios_write_type1(¤t, handle++)); update_max(len, max_struct_size, smbios_write_type2(¤t, handle, handle + 1)); /* The chassis handle is the next one */ handle++; update_max(len, max_struct_size, smbios_write_type3(¤t, handle++)); update_max(len, max_struct_size, smbios_write_type4(¤t, handle++)); update_max(len, max_struct_size, smbios_write_type11(¤t, &handle)); if (IS_ENABLED(CONFIG_ELOG)) update_max(len, max_struct_size, elog_smbios_write_type15(¤t,handle++)); update_max(len, max_struct_size, smbios_write_type17(¤t, &handle)); update_max(len, max_struct_size, smbios_write_type32(¤t, handle++)); update_max(len, max_struct_size, smbios_walk_device_tree(all_devices, &handle, ¤t)); update_max(len, max_struct_size, smbios_write_type127(¤t, handle++)); memset(se, 0, sizeof(struct smbios_entry)); memcpy(se->anchor, "_SM_", 4); se->length = sizeof(struct smbios_entry); se->major_version = 2; se->minor_version = 7; se->max_struct_size = max_struct_size; se->struct_count = handle; memcpy(se->intermediate_anchor_string, "_DMI_", 5); se->struct_table_address = (u32)tables; se->struct_table_length = len; se->intermediate_checksum = smbios_checksum((u8 *)se + 0x10, sizeof(struct smbios_entry) - 0x10); se->checksum = smbios_checksum((u8 *)se, sizeof(struct smbios_entry)); return current; }