| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2011 Sven Schnelle <svens@stackframe.org> |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| * MA 02110-1301 USA |
| */ |
| |
| #include <stdlib.h> |
| #include <string.h> |
| #include <smbios.h> |
| #include <console/console.h> |
| #include <build.h> |
| #include <device/device.h> |
| #include <arch/cpu.h> |
| #include <cpu/x86/name.h> |
| #include <cbfs_core.h> |
| #include <arch/byteorder.h> |
| #include <elog.h> |
| #if CONFIG_CHROMEOS |
| #include <vendorcode/google/chromeos/gnvs.h> |
| #endif |
| |
| static u8 smbios_checksum(u8 *p, u32 length) |
| { |
| u8 ret = 0; |
| while (length--) |
| ret += *p++; |
| return -ret; |
| } |
| |
| |
| int smbios_add_string(char *start, const char *str) |
| { |
| int i = 1; |
| char *p = start; |
| |
| 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(char *start) |
| { |
| char *p = start; |
| int i, len = 0; |
| |
| while(*p) { |
| i = strlen(p) + 1; |
| p += i; |
| len += i; |
| } |
| return len + 1; |
| } |
| |
| static int smbios_cpu_vendor(char *start) |
| { |
| char tmp[13] = "Unknown"; |
| u32 *_tmp = (u32 *)tmp; |
| struct cpuid_result res; |
| |
| if (cpu_have_cpuid()) { |
| res = cpuid(0); |
| _tmp[0] = res.ebx; |
| _tmp[1] = res.edx; |
| _tmp[2] = res.ecx; |
| tmp[12] = '\0'; |
| } |
| |
| return smbios_add_string(start, tmp); |
| } |
| |
| static int smbios_processor_name(char *start) |
| { |
| char tmp[49] = "Unknown Processor Name"; |
| u32 *_tmp = (u32 *)tmp; |
| struct cpuid_result res; |
| int i; |
| |
| if (cpu_have_cpuid()) { |
| res = cpuid(0x80000000); |
| if (res.eax >= 0x80000004) { |
| for (i = 0; i < 3; i++) { |
| res = cpuid(0x80000002 + i); |
| _tmp[i * 4 + 0] = res.eax; |
| _tmp[i * 4 + 1] = res.ebx; |
| _tmp[i * 4 + 2] = res.ecx; |
| _tmp[i * 4 + 3] = res.edx; |
| } |
| tmp[48] = 0; |
| } |
| } |
| return smbios_add_string(start, tmp); |
| } |
| |
| static int smbios_write_type0(unsigned long *current, int handle) |
| { |
| struct cbfs_header *hdr; |
| 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 !CONFIG_CHROMEOS |
| t->bios_release_date = smbios_add_string(t->eos, COREBOOT_DMI_DATE); |
| t->bios_version = smbios_add_string(t->eos, COREBOOT_VERSION); |
| #else |
| #define SPACES \ |
| " " |
| t->bios_release_date = smbios_add_string(t->eos, COREBOOT_DMI_DATE); |
| u32 version_offset = (u32)smbios_string_table_len(t->eos); |
| t->bios_version = smbios_add_string(t->eos, SPACES); |
| /* SMBIOS offsets start at 1 rather than 0 */ |
| vboot_data->vbt10 = (u32)t->eos + (version_offset - 1); |
| #endif |
| |
| if ((hdr = get_cbfs_header()) != (struct cbfs_header *)0xffffffff) |
| t->bios_rom_size = (ntohl(hdr->romsize) / 65535) - 1; |
| t->system_bios_major_release = 4; |
| t->bios_characteristics = |
| BIOS_CHARACTERISTICS_PCI_SUPPORTED | |
| #if CONFIG_CARDBUS_PLUGIN_SUPPORT |
| BIOS_CHARACTERISTICS_PC_CARD | |
| #endif |
| BIOS_CHARACTERISTICS_SELECTABLE_BOOT | |
| BIOS_CHARACTERISTICS_UPGRADEABLE; |
| |
| #if CONFIG_GENERATE_ACPI_TABLES |
| t->bios_characteristics_ext1 = BIOS_EXT1_CHARACTERISTICS_ACPI; |
| #endif |
| t->bios_characteristics_ext2 = BIOS_EXT2_CHARACTERISTICS_TARGET; |
| len = t->length + smbios_string_table_len(t->eos); |
| *current += len; |
| return len; |
| } |
| |
| const char *__attribute__((weak)) smbios_mainboard_serial_number(void) |
| { |
| return CONFIG_MAINBOARD_SERIAL_NUMBER; |
| } |
| |
| const char *__attribute__((weak)) smbios_mainboard_version(void) |
| { |
| return CONFIG_MAINBOARD_VERSION; |
| } |
| |
| 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, CONFIG_MAINBOARD_VENDOR); |
| t->product_name = smbios_add_string(t->eos, CONFIG_MAINBOARD_PART_NUMBER); |
| t->serial_number = smbios_add_string(t->eos, smbios_mainboard_serial_number()); |
| t->version = smbios_add_string(t->eos, smbios_mainboard_version()); |
| 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, CONFIG_MAINBOARD_VENDOR); |
| t->bootup_state = SMBIOS_STATE_SAFE; |
| t->power_supply_state = SMBIOS_STATE_SAFE; |
| t->thermal_state = SMBIOS_STATE_SAFE; |
| t->_type = 3; |
| 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->processor_upgrade = 0x06; |
| 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_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; |
| } |
| |
| 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(device_t tree, int *handle, unsigned long *current) |
| { |
| device_t dev; |
| int len = 0; |
| |
| for(dev = tree; dev; dev = dev->next) { |
| printk(BIOS_INFO, "%s (%s)\n", dev_path(dev), |
| (dev->chip_ops && dev->chip_ops->name) ? dev->chip_ops->name : ""); |
| |
| if (dev->ops && dev->ops->get_smbios_data) |
| len += dev->ops->get_smbios_data(dev, handle, current); |
| |
| if (dev->chip_ops && dev->chip_ops->get_smbios_data) |
| len += dev->chip_ops->get_smbios_data(dev, handle, current); |
| } |
| return len; |
| } |
| |
| unsigned long smbios_write_tables(unsigned long current) |
| { |
| struct smbios_entry *se; |
| unsigned long tables; |
| int len, 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; |
| len = smbios_write_type0(¤t, handle++); |
| len += smbios_write_type1(¤t, handle++); |
| len += smbios_write_type3(¤t, handle++); |
| len += smbios_write_type4(¤t, handle++); |
| #if CONFIG_ELOG |
| len += elog_smbios_write_type15(¤t, handle++); |
| #endif |
| len += smbios_write_type32(¤t, handle++); |
| |
| len += smbios_walk_device_tree(all_devices, &handle, ¤t); |
| |
| len += 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 = 24; |
| 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; |
| } |