diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig | 24 | ||||
| -rw-r--r-- | lib/efi_loader/Makefile | 4 | ||||
| -rw-r--r-- | lib/efi_loader/efi_setup.c | 20 | ||||
| -rw-r--r-- | lib/efi_loader/efi_smbios.c | 72 |
4 files changed, 81 insertions, 39 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index eb2b101618..79cf9ef0fa 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -289,6 +289,14 @@ config ACPI not necessarily include generation of tables (see GENERATE_ACPI_TABLE), but allows for tables to be located. +config SPL_ACPI + bool "Enable support for ACPI libraries in SPL" + depends on SPL && SUPPORT_ACPI + help + Provides library functions for dealing with ACPI tables in SPL. This + does not necessarily include generation of tables + (see GENERATE_ACPI_TABLE), but allows for tables to be located. + config GENERATE_ACPI_TABLE bool "Generate an ACPI (Advanced Configuration and Power Interface) table" depends on ACPI @@ -967,8 +975,8 @@ config BLOBLIST_TABLES config GENERATE_SMBIOS_TABLE bool "Generate an SMBIOS (System Management BIOS) table" + depends on SMBIOS default y - depends on X86 || EFI_LOADER help The System Management BIOS (SMBIOS) specification addresses how motherboard and system vendors present management information about @@ -1037,6 +1045,20 @@ config SPL_OID_REGISTRY unambiguous persistent name (https://en.wikipedia.org/wiki/Object_identifier). Enable fast lookup object identifier registry in the SPL. +config SMBIOS + bool "SMBIOS support" + depends on X86 || EFI_LOADER + default y + select LAST_STAGE_INIT + help + Indicates that this platform can support System Management BIOS + (SMBIOS) tables. These provide various pieces of information about + the board, such as the manufacturer and the model name. + + See GENERATE_SMBIOS_TABLE which controls whether U-Boot actually + creates these tables, rather than them coming from a previous firmware + stage. + config SMBIOS_PARSER bool "SMBIOS parser" help diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile index 1a8c8d7cab..8d31fc61c6 100644 --- a/lib/efi_loader/Makefile +++ b/lib/efi_loader/Makefile @@ -78,8 +78,8 @@ obj-$(CONFIG_EFI_ESRT) += efi_esrt.o obj-$(CONFIG_VIDEO) += efi_gop.o obj-$(CONFIG_BLK) += efi_disk.o obj-$(CONFIG_NETDEVICES) += efi_net.o -obj-$(CONFIG_GENERATE_ACPI_TABLE) += efi_acpi.o -obj-$(CONFIG_GENERATE_SMBIOS_TABLE) += efi_smbios.o +obj-$(CONFIG_ACPI) += efi_acpi.o +obj-$(CONFIG_SMBIOS) += efi_smbios.o obj-$(CONFIG_EFI_RNG_PROTOCOL) += efi_rng.o obj-$(CONFIG_EFI_TCG2_PROTOCOL) += efi_tcg2.o obj-$(CONFIG_EFI_RISCV_BOOT_PROTOCOL) += efi_riscv.o diff --git a/lib/efi_loader/efi_setup.c b/lib/efi_loader/efi_setup.c index 58d4e13402..e6de685e87 100644 --- a/lib/efi_loader/efi_setup.c +++ b/lib/efi_loader/efi_setup.c @@ -321,16 +321,16 @@ efi_status_t efi_init_obj_list(void) if (ret != EFI_SUCCESS) goto out; #endif -#ifdef CONFIG_GENERATE_ACPI_TABLE - ret = efi_acpi_register(); - if (ret != EFI_SUCCESS) - goto out; -#endif -#ifdef CONFIG_GENERATE_SMBIOS_TABLE - ret = efi_smbios_register(); - if (ret != EFI_SUCCESS) - goto out; -#endif + if (IS_ENABLED(CONFIG_ACPI)) { + ret = efi_acpi_register(); + if (ret != EFI_SUCCESS) + goto out; + } + if (IS_ENABLED(CONFIG_SMBIOS)) { + ret = efi_smbios_register(); + if (ret != EFI_SUCCESS) + goto out; + } ret = efi_watchdog_register(); if (ret != EFI_SUCCESS) goto out; diff --git a/lib/efi_loader/efi_smbios.c b/lib/efi_loader/efi_smbios.c index 306c0bc54f..48446f654d 100644 --- a/lib/efi_loader/efi_smbios.c +++ b/lib/efi_loader/efi_smbios.c @@ -10,8 +10,14 @@ #include <common.h> #include <efi_loader.h> #include <log.h> +#include <malloc.h> #include <mapmem.h> #include <smbios.h> +#include <linux/sizes.h> + +enum { + TABLE_SIZE = SZ_4K, +}; /* * Install the SMBIOS table as a configuration table. @@ -20,36 +26,50 @@ */ efi_status_t efi_smbios_register(void) { - /* Map within the low 32 bits, to allow for 32bit SMBIOS tables */ - u64 dmi_addr = U32_MAX; + ulong addr; efi_status_t ret; - void *dmi; - /* Reserve 4kiB page for SMBIOS */ - ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS, - EFI_RUNTIME_SERVICES_DATA, 1, &dmi_addr); + addr = gd->arch.smbios_start; + if (!addr) { + log_err("No SMBIOS tables to install\n"); + return EFI_NOT_FOUND; + } + + /* Mark space used for tables */ + ret = efi_add_memory_map(addr, TABLE_SIZE, EFI_RUNTIME_SERVICES_DATA); + if (ret) + return ret; + + log_debug("EFI using SMBIOS tables at %lx\n", addr); + + /* Install SMBIOS information as configuration table */ + return efi_install_configuration_table(&smbios_guid, + map_sysmem(addr, 0)); +} + +static int install_smbios_table(void) +{ + ulong addr; + void *buf; - if (ret != EFI_SUCCESS) { - /* Could not find space in lowmem, use highmem instead */ - ret = efi_allocate_pages(EFI_ALLOCATE_ANY_PAGES, - EFI_RUNTIME_SERVICES_DATA, 1, - &dmi_addr); + if (!IS_ENABLED(CONFIG_GENERATE_SMBIOS_TABLE) || IS_ENABLED(CONFIG_X86)) + return 0; - if (ret != EFI_SUCCESS) - return ret; + /* Align the table to a 4KB boundary to keep EFI happy */ + buf = memalign(SZ_4K, TABLE_SIZE); + if (!buf) + return log_msg_ret("mem", -ENOMEM); + + addr = map_to_sysmem(buf); + if (!write_smbios_table(addr)) { + log_err("Failed to write SMBIOS table\n"); + return log_msg_ret("smbios", -EINVAL); } - /* - * Generate SMBIOS tables - we know that efi_allocate_pages() returns - * a 4k-aligned address, so it is safe to assume that - * write_smbios_table() will write the table at that address. - */ - assert(!(dmi_addr & 0xf)); - dmi = (void *)(uintptr_t)dmi_addr; - if (write_smbios_table(map_to_sysmem(dmi))) - /* Install SMBIOS information as configuration table */ - return efi_install_configuration_table(&smbios_guid, dmi); - efi_free_pages(dmi_addr, 1); - log_err("Cannot create SMBIOS table\n"); - return EFI_SUCCESS; + /* Make a note of where we put it */ + log_debug("SMBIOS tables written to %lx\n", addr); + gd->arch.smbios_start = addr; + + return 0; } +EVENT_SPY_SIMPLE(EVT_LAST_STAGE_INIT, install_smbios_table); |