From 164bcfdd1b0b2cc789203eeb9e3ff842df215a7c Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Sun, 14 Aug 2011 20:56:34 +0200 Subject: Add automatic SMBIOS table generation Change-Id: I0ae16dda8969638a8f70fe1d2e29e992aef3a834 Signed-off-by: Sven Schnelle Reviewed-on: http://review.coreboot.org/152 Tested-by: build bot (Jenkins) --- src/arch/x86/boot/Makefile.inc | 2 + src/arch/x86/boot/smbios.c | 293 +++++++++++++++++++++++++++++++++++++++++ src/arch/x86/boot/tables.c | 24 +++- 3 files changed, 318 insertions(+), 1 deletion(-) create mode 100644 src/arch/x86/boot/smbios.c (limited to 'src/arch') diff --git a/src/arch/x86/boot/Makefile.inc b/src/arch/x86/boot/Makefile.inc index d4a377f74b..3f11c01611 100644 --- a/src/arch/x86/boot/Makefile.inc +++ b/src/arch/x86/boot/Makefile.inc @@ -6,8 +6,10 @@ ramstage-y += tables.c ramstage-$(CONFIG_GENERATE_MP_TABLE) += mpspec.c ramstage-$(CONFIG_GENERATE_PIRQ_TABLE) += pirq_routing.c ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += acpi.c +ramstage-$(CONFIG_GENERATE_SMBIOS_TABLES) += smbios.c ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += acpigen.c ramstage-$(CONFIG_HAVE_ACPI_RESUME) += wakeup.S $(obj)/arch/x86/boot/coreboot_table.ramstage.o : $(OPTION_TABLE_H) +$(obj)/arch/x86/boot/smbios.ramstage.o: $(obj)/build.h diff --git a/src/arch/x86/boot/smbios.c b/src/arch/x86/boot/smbios.c new file mode 100644 index 0000000000..e5156d9de7 --- /dev/null +++ b/src/arch/x86/boot/smbios.c @@ -0,0 +1,293 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Sven Schnelle + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include + +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]; + u32 *_tmp = (u32 *)tmp; + struct cpuid_result 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]; + u32 *_tmp = (u32 *)tmp; + struct cpuid_result res; + int i; + + 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"); + t->bios_release_date = smbios_add_string(t->eos, COREBOOT_DMI_DATE); + t->bios_version = smbios_add_string(t->eos, COREBOOT_VERSION); + + 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; +} + +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); + 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); + + 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 = 0x0c; + 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 : ""); + + 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++); + 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; +} diff --git a/src/arch/x86/boot/tables.c b/src/arch/x86/boot/tables.c index d816e76750..29d2ec09b2 100644 --- a/src/arch/x86/boot/tables.c +++ b/src/arch/x86/boot/tables.c @@ -31,6 +31,7 @@ #include #include #include +#include uint64_t high_tables_base = 0; uint64_t high_tables_size; @@ -120,7 +121,7 @@ struct lb_memory *write_tables(void) #endif /* CONFIG_GENERATE_MP_TABLE */ #if CONFIG_GENERATE_ACPI_TABLES == 1 -#define MAX_ACPI_SIZE (47 * 1024) +#define MAX_ACPI_SIZE (45 * 1024) post_code(0x9c); /* Write ACPI tables to F segment and high tables area */ @@ -178,7 +179,28 @@ struct lb_memory *write_tables(void) } #endif +#define MAX_SMBIOS_SIZE 2048 +#if CONFIG_GENERATE_SMBIOS_TABLES + high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_SMBIOS, MAX_SMBIOS_SIZE); + if (high_table_pointer) { + unsigned long new_high_table_pointer; + new_high_table_pointer = smbios_write_tables(high_table_pointer); + rom_table_end = ALIGN(rom_table_end, 16); + memcpy((void *)rom_table_end, (void *)high_table_pointer, sizeof(struct smbios_entry)); + rom_table_end += sizeof(struct smbios_entry); + + if (new_high_table_pointer > ( high_table_pointer + MAX_SMBIOS_SIZE)) { + printk(BIOS_ERR, "ERROR: Increase SMBIOS size\n"); + } + printk(BIOS_DEBUG, "SMBIOS tables: %ld bytes.\n", + new_high_table_pointer - high_table_pointer); + } else { + unsigned long new_rom_table_end = smbios_write_tables(rom_table_end); + printk(BIOS_DEBUG, "SMBIOS size %ld bytes\n", new_rom_table_end - rom_table_end); + rom_table_end = ALIGN(new_rom_table_end, 16); + } +#endif #define MAX_COREBOOT_TABLE_SIZE (8 * 1024) post_code(0x9d); -- cgit v1.2.3