From 4b6dddc294a58fd9010926719e5c907beebf9b4d Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Fri, 19 Aug 2016 01:23:23 +0200 Subject: x86: Move smbios generation into arch independent directory We will need the SMBIOS generation function on ARM as well going forward, so let's move it into a non arch specific location. Signed-off-by: Alexander Graf Reviewed-by: Bin Meng Reviewed-by: Simon Glass --- arch/x86/Kconfig | 27 ----- arch/x86/include/asm/smbios.h | 236 ------------------------------------ arch/x86/lib/Makefile | 1 - arch/x86/lib/smbios.c | 269 ------------------------------------------ arch/x86/lib/tables.c | 2 +- include/smbios.h | 236 ++++++++++++++++++++++++++++++++++++ lib/Kconfig | 33 ++++++ lib/Makefile | 1 + lib/smbios.c | 269 ++++++++++++++++++++++++++++++++++++++++++ 9 files changed, 540 insertions(+), 534 deletions(-) delete mode 100644 arch/x86/include/asm/smbios.h delete mode 100644 arch/x86/lib/smbios.c create mode 100644 include/smbios.h create mode 100644 lib/smbios.c diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index ac2d598..0884af2 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -461,33 +461,6 @@ config GENERATE_ACPI_TABLE by the operating system. It defines platform-independent interfaces for configuration and power management monitoring. -config GENERATE_SMBIOS_TABLE - bool "Generate an SMBIOS (System Management BIOS) table" - default y - help - The System Management BIOS (SMBIOS) specification addresses how - motherboard and system vendors present management information about - their products in a standard format by extending the BIOS interface - on Intel architecture systems. - - Check http://www.dmtf.org/standards/smbios for details. - -config SMBIOS_MANUFACTURER - string "SMBIOS Manufacturer" - depends on GENERATE_SMBIOS_TABLE - default SYS_VENDOR - help - The board manufacturer to store in SMBIOS structures. - Change this to override the default one (CONFIG_SYS_VENDOR). - -config SMBIOS_PRODUCT_NAME - string "SMBIOS Product Name" - depends on GENERATE_SMBIOS_TABLE - default SYS_BOARD - help - The product name to store in SMBIOS structures. - Change this to override the default one (CONFIG_SYS_BOARD). - endmenu config MAX_PIRQ_LINKS diff --git a/arch/x86/include/asm/smbios.h b/arch/x86/include/asm/smbios.h deleted file mode 100644 index 623a703..0000000 --- a/arch/x86/include/asm/smbios.h +++ /dev/null @@ -1,236 +0,0 @@ -/* - * Copyright (C) 2015, Bin Meng - * - * Adapted from coreboot src/include/smbios.h - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifndef _SMBIOS_H_ -#define _SMBIOS_H_ - -/* SMBIOS spec version implemented */ -#define SMBIOS_MAJOR_VER 3 -#define SMBIOS_MINOR_VER 0 - -/* SMBIOS structure types */ -enum { - SMBIOS_BIOS_INFORMATION = 0, - SMBIOS_SYSTEM_INFORMATION = 1, - SMBIOS_BOARD_INFORMATION = 2, - SMBIOS_SYSTEM_ENCLOSURE = 3, - SMBIOS_PROCESSOR_INFORMATION = 4, - SMBIOS_CACHE_INFORMATION = 7, - SMBIOS_SYSTEM_SLOTS = 9, - SMBIOS_PHYS_MEMORY_ARRAY = 16, - SMBIOS_MEMORY_DEVICE = 17, - SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS = 19, - SMBIOS_SYSTEM_BOOT_INFORMATION = 32, - SMBIOS_END_OF_TABLE = 127 -}; - -#define SMBIOS_INTERMEDIATE_OFFSET 16 -#define SMBIOS_STRUCT_EOS_BYTES 2 - -struct __packed smbios_entry { - u8 anchor[4]; - u8 checksum; - u8 length; - u8 major_ver; - u8 minor_ver; - u16 max_struct_size; - u8 entry_point_rev; - u8 formatted_area[5]; - u8 intermediate_anchor[5]; - u8 intermediate_checksum; - u16 struct_table_length; - u32 struct_table_address; - u16 struct_count; - u8 bcd_rev; -}; - -/* BIOS characteristics */ -#define BIOS_CHARACTERISTICS_PCI_SUPPORTED (1 << 7) -#define BIOS_CHARACTERISTICS_UPGRADEABLE (1 << 11) -#define BIOS_CHARACTERISTICS_SELECTABLE_BOOT (1 << 16) - -#define BIOS_CHARACTERISTICS_EXT1_ACPI (1 << 0) -#define BIOS_CHARACTERISTICS_EXT2_TARGET (1 << 2) - -struct __packed smbios_type0 { - u8 type; - u8 length; - u16 handle; - u8 vendor; - u8 bios_ver; - u16 bios_start_segment; - u8 bios_release_date; - u8 bios_rom_size; - u64 bios_characteristics; - u8 bios_characteristics_ext1; - u8 bios_characteristics_ext2; - u8 bios_major_release; - u8 bios_minor_release; - u8 ec_major_release; - u8 ec_minor_release; - char eos[SMBIOS_STRUCT_EOS_BYTES]; -}; - -struct __packed smbios_type1 { - u8 type; - u8 length; - u16 handle; - u8 manufacturer; - u8 product_name; - u8 version; - u8 serial_number; - u8 uuid[16]; - u8 wakeup_type; - u8 sku_number; - u8 family; - char eos[SMBIOS_STRUCT_EOS_BYTES]; -}; - -#define SMBIOS_BOARD_FEATURE_HOSTING (1 << 0) -#define SMBIOS_BOARD_MOTHERBOARD 10 - -struct __packed smbios_type2 { - u8 type; - u8 length; - u16 handle; - u8 manufacturer; - u8 product_name; - u8 version; - u8 serial_number; - u8 asset_tag_number; - u8 feature_flags; - u8 chassis_location; - u16 chassis_handle; - u8 board_type; - char eos[SMBIOS_STRUCT_EOS_BYTES]; -}; - -#define SMBIOS_ENCLOSURE_DESKTOP 3 -#define SMBIOS_STATE_SAFE 3 -#define SMBIOS_SECURITY_NONE 3 - -struct __packed smbios_type3 { - u8 type; - u8 length; - u16 handle; - u8 manufacturer; - u8 chassis_type; - u8 version; - u8 serial_number; - u8 asset_tag_number; - u8 bootup_state; - u8 power_supply_state; - u8 thermal_state; - u8 security_status; - u32 oem_defined; - u8 height; - u8 number_of_power_cords; - u8 element_count; - u8 element_record_length; - char eos[SMBIOS_STRUCT_EOS_BYTES]; -}; - -#define SMBIOS_PROCESSOR_TYPE_CENTRAL 3 -#define SMBIOS_PROCESSOR_STATUS_ENABLED 1 -#define SMBIOS_PROCESSOR_UPGRADE_NONE 6 - -struct __packed smbios_type4 { - u8 type; - u8 length; - u16 handle; - u8 socket_designation; - u8 processor_type; - u8 processor_family; - u8 processor_manufacturer; - u32 processor_id[2]; - u8 processor_version; - u8 voltage; - u16 external_clock; - u16 max_speed; - u16 current_speed; - u8 status; - u8 processor_upgrade; - u16 l1_cache_handle; - u16 l2_cache_handle; - u16 l3_cache_handle; - u8 serial_number; - u8 asset_tag; - u8 part_number; - u8 core_count; - u8 core_enabled; - u8 thread_count; - u16 processor_characteristics; - u16 processor_family2; - u16 core_count2; - u16 core_enabled2; - u16 thread_count2; - char eos[SMBIOS_STRUCT_EOS_BYTES]; -}; - -struct __packed smbios_type32 { - u8 type; - u8 length; - u16 handle; - u8 reserved[6]; - u8 boot_status; - u8 eos[SMBIOS_STRUCT_EOS_BYTES]; -}; - -struct __packed smbios_type127 { - u8 type; - u8 length; - u16 handle; - u8 eos[SMBIOS_STRUCT_EOS_BYTES]; -}; - -struct __packed smbios_header { - u8 type; - u8 length; - u16 handle; -}; - -/** - * fill_smbios_header() - Fill the header of an SMBIOS table - * - * This fills the header of an SMBIOS table structure. - * - * @table: start address of the structure - * @type: the type of structure - * @length: the length of the formatted area of the structure - * @handle: the structure's handle, a unique 16-bit number - */ -static inline void fill_smbios_header(void *table, int type, - int length, int handle) -{ - struct smbios_header *header = table; - - header->type = type; - header->length = length - SMBIOS_STRUCT_EOS_BYTES; - header->handle = handle; -} - -/** - * Function prototype to write a specific type of SMBIOS structure - * - * @addr: start address to write the structure - * @handle: the structure's handle, a unique 16-bit number - * @return: size of the structure - */ -typedef int (*smbios_write_type)(u32 *addr, int handle); - -/** - * write_smbios_table() - Write SMBIOS table - * - * This writes SMBIOS table at a given address. - * - * @addr: start address to write SMBIOS table - * @return: end address of SMBIOS table - */ -u32 write_smbios_table(u32 addr); - -#endif /* _SMBIOS_H_ */ diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index e17f0bb..40ea6bf 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -29,7 +29,6 @@ obj-y += relocate.o obj-y += physmem.o obj-$(CONFIG_X86_RAMTEST) += ramtest.o obj-y += sfi.o -obj-$(CONFIG_GENERATE_SMBIOS_TABLE) += smbios.o obj-y += string.o ifndef CONFIG_QEMU obj-$(CONFIG_GENERATE_ACPI_TABLE) += acpi_table.o diff --git a/arch/x86/lib/smbios.c b/arch/x86/lib/smbios.c deleted file mode 100644 index 9f30550..0000000 --- a/arch/x86/lib/smbios.c +++ /dev/null @@ -1,269 +0,0 @@ -/* - * Copyright (C) 2015, Bin Meng - * - * Adapted from coreboot src/arch/x86/smbios.c - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include -#include -#include -#include -#include - -DECLARE_GLOBAL_DATA_PTR; - -/** - * smbios_add_string() - add a string to the string area - * - * This adds a string to the string area which is appended directly after - * the formatted portion of an SMBIOS structure. - * - * @start: string area start address - * @str: string to add - * @return: string number in the string area - */ -static 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++; - } -} - -/** - * smbios_string_table_len() - compute the string area size - * - * This computes the size of the string area including the string terminator. - * - * @start: string area start address - * @return: string area size - */ -static 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_write_type0(u32 *current, int handle) -{ - struct smbios_type0 *t = (struct smbios_type0 *)*current; - int len = sizeof(struct smbios_type0); - - memset(t, 0, sizeof(struct smbios_type0)); - fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle); - t->vendor = smbios_add_string(t->eos, "U-Boot"); - t->bios_ver = smbios_add_string(t->eos, PLAIN_VERSION); - t->bios_release_date = smbios_add_string(t->eos, U_BOOT_DMI_DATE); - t->bios_rom_size = (CONFIG_ROM_SIZE / 65536) - 1; - t->bios_characteristics = BIOS_CHARACTERISTICS_PCI_SUPPORTED | - BIOS_CHARACTERISTICS_SELECTABLE_BOOT | - BIOS_CHARACTERISTICS_UPGRADEABLE; -#ifdef CONFIG_GENERATE_ACPI_TABLE - t->bios_characteristics_ext1 = BIOS_CHARACTERISTICS_EXT1_ACPI; -#endif - t->bios_characteristics_ext2 = BIOS_CHARACTERISTICS_EXT2_TARGET; - t->bios_major_release = 0xff; - t->bios_minor_release = 0xff; - t->ec_major_release = 0xff; - t->ec_minor_release = 0xff; - - len = t->length + smbios_string_table_len(t->eos); - *current += len; - - return len; -} - -static int smbios_write_type1(u32 *current, int handle) -{ - struct smbios_type1 *t = (struct smbios_type1 *)*current; - int len = sizeof(struct smbios_type1); - - memset(t, 0, sizeof(struct smbios_type1)); - fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle); - t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); - t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME); - - len = t->length + smbios_string_table_len(t->eos); - *current += len; - - return len; -} - -static int smbios_write_type2(u32 *current, int handle) -{ - struct smbios_type2 *t = (struct smbios_type2 *)*current; - int len = sizeof(struct smbios_type2); - - memset(t, 0, sizeof(struct smbios_type2)); - fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle); - t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); - t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME); - t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING; - t->board_type = SMBIOS_BOARD_MOTHERBOARD; - - len = t->length + smbios_string_table_len(t->eos); - *current += len; - - return len; -} - -static int smbios_write_type3(u32 *current, int handle) -{ - struct smbios_type3 *t = (struct smbios_type3 *)*current; - int len = sizeof(struct smbios_type3); - - memset(t, 0, sizeof(struct smbios_type3)); - fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle); - t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); - t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP; - t->bootup_state = SMBIOS_STATE_SAFE; - t->power_supply_state = SMBIOS_STATE_SAFE; - t->thermal_state = SMBIOS_STATE_SAFE; - t->security_status = SMBIOS_SECURITY_NONE; - - len = t->length + smbios_string_table_len(t->eos); - *current += len; - - return len; -} - -static int smbios_write_type4(u32 *current, int handle) -{ - struct smbios_type4 *t = (struct smbios_type4 *)*current; - int len = sizeof(struct smbios_type4); - const char *vendor; - char *name; - char processor_name[CPU_MAX_NAME_LEN]; - struct cpuid_result res; - - memset(t, 0, sizeof(struct smbios_type4)); - fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle); - t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL; - t->processor_family = gd->arch.x86; - vendor = cpu_vendor_name(gd->arch.x86_vendor); - t->processor_manufacturer = smbios_add_string(t->eos, vendor); - res = cpuid(1); - t->processor_id[0] = res.eax; - t->processor_id[1] = res.edx; - name = cpu_get_name(processor_name); - t->processor_version = smbios_add_string(t->eos, name); - t->status = SMBIOS_PROCESSOR_STATUS_ENABLED; - t->processor_upgrade = SMBIOS_PROCESSOR_UPGRADE_NONE; - t->l1_cache_handle = 0xffff; - t->l2_cache_handle = 0xffff; - t->l3_cache_handle = 0xffff; - t->processor_family2 = t->processor_family; - - len = t->length + smbios_string_table_len(t->eos); - *current += len; - - return len; -} - -static int smbios_write_type32(u32 *current, int handle) -{ - struct smbios_type32 *t = (struct smbios_type32 *)*current; - int len = sizeof(struct smbios_type32); - - memset(t, 0, sizeof(struct smbios_type32)); - fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle); - - *current += len; - - return len; -} - -static int smbios_write_type127(u32 *current, int handle) -{ - struct smbios_type127 *t = (struct smbios_type127 *)*current; - int len = sizeof(struct smbios_type127); - - memset(t, 0, sizeof(struct smbios_type127)); - fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle); - - *current += len; - - return len; -} - -static smbios_write_type smbios_write_funcs[] = { - smbios_write_type0, - smbios_write_type1, - smbios_write_type2, - smbios_write_type3, - smbios_write_type4, - smbios_write_type32, - smbios_write_type127 -}; - -u32 write_smbios_table(u32 addr) -{ - struct smbios_entry *se; - u32 tables; - int len = 0; - int max_struct_size = 0; - int handle = 0; - char *istart; - int isize; - int i; - - /* 16 byte align the table address */ - addr = ALIGN(addr, 16); - - se = (struct smbios_entry *)addr; - memset(se, 0, sizeof(struct smbios_entry)); - - addr += sizeof(struct smbios_entry); - addr = ALIGN(addr, 16); - tables = addr; - - /* populate minimum required tables */ - for (i = 0; i < ARRAY_SIZE(smbios_write_funcs); i++) { - int tmp = smbios_write_funcs[i](&addr, handle++); - max_struct_size = max(max_struct_size, tmp); - len += tmp; - } - - memcpy(se->anchor, "_SM_", 4); - se->length = sizeof(struct smbios_entry); - se->major_ver = SMBIOS_MAJOR_VER; - se->minor_ver = SMBIOS_MINOR_VER; - se->max_struct_size = max_struct_size; - memcpy(se->intermediate_anchor, "_DMI_", 5); - se->struct_table_length = len; - se->struct_table_address = tables; - se->struct_count = handle; - - /* calculate checksums */ - istart = (char *)se + SMBIOS_INTERMEDIATE_OFFSET; - isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET; - se->intermediate_checksum = table_compute_checksum(istart, isize); - se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry)); - - return addr; -} diff --git a/arch/x86/lib/tables.c b/arch/x86/lib/tables.c index 9ee6b5e..e62705a 100644 --- a/arch/x86/lib/tables.c +++ b/arch/x86/lib/tables.c @@ -5,9 +5,9 @@ */ #include +#include #include #include -#include #include #include #include diff --git a/include/smbios.h b/include/smbios.h new file mode 100644 index 0000000..623a703 --- /dev/null +++ b/include/smbios.h @@ -0,0 +1,236 @@ +/* + * Copyright (C) 2015, Bin Meng + * + * Adapted from coreboot src/include/smbios.h + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _SMBIOS_H_ +#define _SMBIOS_H_ + +/* SMBIOS spec version implemented */ +#define SMBIOS_MAJOR_VER 3 +#define SMBIOS_MINOR_VER 0 + +/* SMBIOS structure types */ +enum { + SMBIOS_BIOS_INFORMATION = 0, + SMBIOS_SYSTEM_INFORMATION = 1, + SMBIOS_BOARD_INFORMATION = 2, + SMBIOS_SYSTEM_ENCLOSURE = 3, + SMBIOS_PROCESSOR_INFORMATION = 4, + SMBIOS_CACHE_INFORMATION = 7, + SMBIOS_SYSTEM_SLOTS = 9, + SMBIOS_PHYS_MEMORY_ARRAY = 16, + SMBIOS_MEMORY_DEVICE = 17, + SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS = 19, + SMBIOS_SYSTEM_BOOT_INFORMATION = 32, + SMBIOS_END_OF_TABLE = 127 +}; + +#define SMBIOS_INTERMEDIATE_OFFSET 16 +#define SMBIOS_STRUCT_EOS_BYTES 2 + +struct __packed smbios_entry { + u8 anchor[4]; + u8 checksum; + u8 length; + u8 major_ver; + u8 minor_ver; + u16 max_struct_size; + u8 entry_point_rev; + u8 formatted_area[5]; + u8 intermediate_anchor[5]; + u8 intermediate_checksum; + u16 struct_table_length; + u32 struct_table_address; + u16 struct_count; + u8 bcd_rev; +}; + +/* BIOS characteristics */ +#define BIOS_CHARACTERISTICS_PCI_SUPPORTED (1 << 7) +#define BIOS_CHARACTERISTICS_UPGRADEABLE (1 << 11) +#define BIOS_CHARACTERISTICS_SELECTABLE_BOOT (1 << 16) + +#define BIOS_CHARACTERISTICS_EXT1_ACPI (1 << 0) +#define BIOS_CHARACTERISTICS_EXT2_TARGET (1 << 2) + +struct __packed smbios_type0 { + u8 type; + u8 length; + u16 handle; + u8 vendor; + u8 bios_ver; + u16 bios_start_segment; + u8 bios_release_date; + u8 bios_rom_size; + u64 bios_characteristics; + u8 bios_characteristics_ext1; + u8 bios_characteristics_ext2; + u8 bios_major_release; + u8 bios_minor_release; + u8 ec_major_release; + u8 ec_minor_release; + char eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +struct __packed smbios_type1 { + u8 type; + u8 length; + u16 handle; + u8 manufacturer; + u8 product_name; + u8 version; + u8 serial_number; + u8 uuid[16]; + u8 wakeup_type; + u8 sku_number; + u8 family; + char eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +#define SMBIOS_BOARD_FEATURE_HOSTING (1 << 0) +#define SMBIOS_BOARD_MOTHERBOARD 10 + +struct __packed smbios_type2 { + u8 type; + u8 length; + u16 handle; + u8 manufacturer; + u8 product_name; + u8 version; + u8 serial_number; + u8 asset_tag_number; + u8 feature_flags; + u8 chassis_location; + u16 chassis_handle; + u8 board_type; + char eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +#define SMBIOS_ENCLOSURE_DESKTOP 3 +#define SMBIOS_STATE_SAFE 3 +#define SMBIOS_SECURITY_NONE 3 + +struct __packed smbios_type3 { + u8 type; + u8 length; + u16 handle; + u8 manufacturer; + u8 chassis_type; + u8 version; + u8 serial_number; + u8 asset_tag_number; + u8 bootup_state; + u8 power_supply_state; + u8 thermal_state; + u8 security_status; + u32 oem_defined; + u8 height; + u8 number_of_power_cords; + u8 element_count; + u8 element_record_length; + char eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +#define SMBIOS_PROCESSOR_TYPE_CENTRAL 3 +#define SMBIOS_PROCESSOR_STATUS_ENABLED 1 +#define SMBIOS_PROCESSOR_UPGRADE_NONE 6 + +struct __packed smbios_type4 { + u8 type; + u8 length; + u16 handle; + u8 socket_designation; + u8 processor_type; + u8 processor_family; + u8 processor_manufacturer; + u32 processor_id[2]; + u8 processor_version; + u8 voltage; + u16 external_clock; + u16 max_speed; + u16 current_speed; + u8 status; + u8 processor_upgrade; + u16 l1_cache_handle; + u16 l2_cache_handle; + u16 l3_cache_handle; + u8 serial_number; + u8 asset_tag; + u8 part_number; + u8 core_count; + u8 core_enabled; + u8 thread_count; + u16 processor_characteristics; + u16 processor_family2; + u16 core_count2; + u16 core_enabled2; + u16 thread_count2; + char eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +struct __packed smbios_type32 { + u8 type; + u8 length; + u16 handle; + u8 reserved[6]; + u8 boot_status; + u8 eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +struct __packed smbios_type127 { + u8 type; + u8 length; + u16 handle; + u8 eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +struct __packed smbios_header { + u8 type; + u8 length; + u16 handle; +}; + +/** + * fill_smbios_header() - Fill the header of an SMBIOS table + * + * This fills the header of an SMBIOS table structure. + * + * @table: start address of the structure + * @type: the type of structure + * @length: the length of the formatted area of the structure + * @handle: the structure's handle, a unique 16-bit number + */ +static inline void fill_smbios_header(void *table, int type, + int length, int handle) +{ + struct smbios_header *header = table; + + header->type = type; + header->length = length - SMBIOS_STRUCT_EOS_BYTES; + header->handle = handle; +} + +/** + * Function prototype to write a specific type of SMBIOS structure + * + * @addr: start address to write the structure + * @handle: the structure's handle, a unique 16-bit number + * @return: size of the structure + */ +typedef int (*smbios_write_type)(u32 *addr, int handle); + +/** + * write_smbios_table() - Write SMBIOS table + * + * This writes SMBIOS table at a given address. + * + * @addr: start address to write SMBIOS table + * @return: end address of SMBIOS table + */ +u32 write_smbios_table(u32 addr); + +#endif /* _SMBIOS_H_ */ diff --git a/lib/Kconfig b/lib/Kconfig index 0e0d8ef..4c098c0 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -163,6 +163,39 @@ config FDT_FIXUP_PARTITIONS using partition info defined in the 'mtdparts' environment variable. +menu "System tables" + depends on !EFI && !SYS_COREBOOT + +config GENERATE_SMBIOS_TABLE + bool "Generate an SMBIOS (System Management BIOS) table" + default y + depends on X86 + help + The System Management BIOS (SMBIOS) specification addresses how + motherboard and system vendors present management information about + their products in a standard format by extending the BIOS interface + on Intel architecture systems. + + Check http://www.dmtf.org/standards/smbios for details. + +config SMBIOS_MANUFACTURER + string "SMBIOS Manufacturer" + depends on GENERATE_SMBIOS_TABLE + default SYS_VENDOR + help + The board manufacturer to store in SMBIOS structures. + Change this to override the default one (CONFIG_SYS_VENDOR). + +config SMBIOS_PRODUCT_NAME + string "SMBIOS Product Name" + depends on GENERATE_SMBIOS_TABLE + default SYS_BOARD + help + The product name to store in SMBIOS structures. + Change this to override the default one (CONFIG_SYS_BOARD). + +endmenu + source lib/efi/Kconfig source lib/efi_loader/Kconfig diff --git a/lib/Makefile b/lib/Makefile index 3842e7d..23e9f1e 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_FIT) += fdtdec_common.o obj-$(CONFIG_TEST_FDTDEC) += fdtdec_test.o obj-$(CONFIG_GZIP) += gunzip.o obj-$(CONFIG_GZIP_COMPRESSED) += gzip.o +obj-$(CONFIG_GENERATE_SMBIOS_TABLE) += smbios.o obj-y += initcall.o obj-$(CONFIG_LMB) += lmb.o obj-y += ldiv.o diff --git a/lib/smbios.c b/lib/smbios.c new file mode 100644 index 0000000..9808ee7 --- /dev/null +++ b/lib/smbios.c @@ -0,0 +1,269 @@ +/* + * Copyright (C) 2015, Bin Meng + * + * Adapted from coreboot src/arch/x86/smbios.c + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +/** + * smbios_add_string() - add a string to the string area + * + * This adds a string to the string area which is appended directly after + * the formatted portion of an SMBIOS structure. + * + * @start: string area start address + * @str: string to add + * @return: string number in the string area + */ +static 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++; + } +} + +/** + * smbios_string_table_len() - compute the string area size + * + * This computes the size of the string area including the string terminator. + * + * @start: string area start address + * @return: string area size + */ +static 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_write_type0(u32 *current, int handle) +{ + struct smbios_type0 *t = (struct smbios_type0 *)*current; + int len = sizeof(struct smbios_type0); + + memset(t, 0, sizeof(struct smbios_type0)); + fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle); + t->vendor = smbios_add_string(t->eos, "U-Boot"); + t->bios_ver = smbios_add_string(t->eos, PLAIN_VERSION); + t->bios_release_date = smbios_add_string(t->eos, U_BOOT_DMI_DATE); + t->bios_rom_size = (CONFIG_ROM_SIZE / 65536) - 1; + t->bios_characteristics = BIOS_CHARACTERISTICS_PCI_SUPPORTED | + BIOS_CHARACTERISTICS_SELECTABLE_BOOT | + BIOS_CHARACTERISTICS_UPGRADEABLE; +#ifdef CONFIG_GENERATE_ACPI_TABLE + t->bios_characteristics_ext1 = BIOS_CHARACTERISTICS_EXT1_ACPI; +#endif + t->bios_characteristics_ext2 = BIOS_CHARACTERISTICS_EXT2_TARGET; + t->bios_major_release = 0xff; + t->bios_minor_release = 0xff; + t->ec_major_release = 0xff; + t->ec_minor_release = 0xff; + + len = t->length + smbios_string_table_len(t->eos); + *current += len; + + return len; +} + +static int smbios_write_type1(u32 *current, int handle) +{ + struct smbios_type1 *t = (struct smbios_type1 *)*current; + int len = sizeof(struct smbios_type1); + + memset(t, 0, sizeof(struct smbios_type1)); + fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle); + t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); + t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME); + + len = t->length + smbios_string_table_len(t->eos); + *current += len; + + return len; +} + +static int smbios_write_type2(u32 *current, int handle) +{ + struct smbios_type2 *t = (struct smbios_type2 *)*current; + int len = sizeof(struct smbios_type2); + + memset(t, 0, sizeof(struct smbios_type2)); + fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle); + t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); + t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME); + t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING; + t->board_type = SMBIOS_BOARD_MOTHERBOARD; + + len = t->length + smbios_string_table_len(t->eos); + *current += len; + + return len; +} + +static int smbios_write_type3(u32 *current, int handle) +{ + struct smbios_type3 *t = (struct smbios_type3 *)*current; + int len = sizeof(struct smbios_type3); + + memset(t, 0, sizeof(struct smbios_type3)); + fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle); + t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); + t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP; + t->bootup_state = SMBIOS_STATE_SAFE; + t->power_supply_state = SMBIOS_STATE_SAFE; + t->thermal_state = SMBIOS_STATE_SAFE; + t->security_status = SMBIOS_SECURITY_NONE; + + len = t->length + smbios_string_table_len(t->eos); + *current += len; + + return len; +} + +static int smbios_write_type4(u32 *current, int handle) +{ + struct smbios_type4 *t = (struct smbios_type4 *)*current; + int len = sizeof(struct smbios_type4); + const char *vendor; + char *name; + char processor_name[CPU_MAX_NAME_LEN]; + struct cpuid_result res; + + memset(t, 0, sizeof(struct smbios_type4)); + fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle); + t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL; + t->processor_family = gd->arch.x86; + vendor = cpu_vendor_name(gd->arch.x86_vendor); + t->processor_manufacturer = smbios_add_string(t->eos, vendor); + res = cpuid(1); + t->processor_id[0] = res.eax; + t->processor_id[1] = res.edx; + name = cpu_get_name(processor_name); + t->processor_version = smbios_add_string(t->eos, name); + t->status = SMBIOS_PROCESSOR_STATUS_ENABLED; + t->processor_upgrade = SMBIOS_PROCESSOR_UPGRADE_NONE; + t->l1_cache_handle = 0xffff; + t->l2_cache_handle = 0xffff; + t->l3_cache_handle = 0xffff; + t->processor_family2 = t->processor_family; + + len = t->length + smbios_string_table_len(t->eos); + *current += len; + + return len; +} + +static int smbios_write_type32(u32 *current, int handle) +{ + struct smbios_type32 *t = (struct smbios_type32 *)*current; + int len = sizeof(struct smbios_type32); + + memset(t, 0, sizeof(struct smbios_type32)); + fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle); + + *current += len; + + return len; +} + +static int smbios_write_type127(u32 *current, int handle) +{ + struct smbios_type127 *t = (struct smbios_type127 *)*current; + int len = sizeof(struct smbios_type127); + + memset(t, 0, sizeof(struct smbios_type127)); + fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle); + + *current += len; + + return len; +} + +static smbios_write_type smbios_write_funcs[] = { + smbios_write_type0, + smbios_write_type1, + smbios_write_type2, + smbios_write_type3, + smbios_write_type4, + smbios_write_type32, + smbios_write_type127 +}; + +u32 write_smbios_table(u32 addr) +{ + struct smbios_entry *se; + u32 tables; + int len = 0; + int max_struct_size = 0; + int handle = 0; + char *istart; + int isize; + int i; + + /* 16 byte align the table address */ + addr = ALIGN(addr, 16); + + se = (struct smbios_entry *)addr; + memset(se, 0, sizeof(struct smbios_entry)); + + addr += sizeof(struct smbios_entry); + addr = ALIGN(addr, 16); + tables = addr; + + /* populate minimum required tables */ + for (i = 0; i < ARRAY_SIZE(smbios_write_funcs); i++) { + int tmp = smbios_write_funcs[i](&addr, handle++); + max_struct_size = max(max_struct_size, tmp); + len += tmp; + } + + memcpy(se->anchor, "_SM_", 4); + se->length = sizeof(struct smbios_entry); + se->major_ver = SMBIOS_MAJOR_VER; + se->minor_ver = SMBIOS_MINOR_VER; + se->max_struct_size = max_struct_size; + memcpy(se->intermediate_anchor, "_DMI_", 5); + se->struct_table_length = len; + se->struct_table_address = tables; + se->struct_count = handle; + + /* calculate checksums */ + istart = (char *)se + SMBIOS_INTERMEDIATE_OFFSET; + isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET; + se->intermediate_checksum = table_compute_checksum(istart, isize); + se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry)); + + return addr; +} -- cgit v1.1