[uboot] create uboot from github:
repo: https://github.com/u-boot/u-boot commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91 Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29
This commit is contained in:
sam.xiang
341
u-boot-2021.10/lib/efi_loader/efi_setup.c
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341
u-boot-2021.10/lib/efi_loader/efi_setup.c
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@ -0,0 +1,341 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* EFI setup code
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*
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* Copyright (c) 2016-2018 Alexander Graf et al.
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*/
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#define LOG_CATEGORY LOGC_EFI
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#include <common.h>
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#include <efi_loader.h>
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#include <efi_variable.h>
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#include <log.h>
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#define OBJ_LIST_NOT_INITIALIZED 1
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efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED;
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/*
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* Allow unaligned memory access.
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*
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* This routine is overridden by architectures providing this feature.
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*/
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void __weak allow_unaligned(void)
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{
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}
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/**
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* efi_init_platform_lang() - define supported languages
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*
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* Set the PlatformLangCodes and PlatformLang variables.
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*
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* Return: status code
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*/
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static efi_status_t efi_init_platform_lang(void)
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{
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efi_status_t ret;
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efi_uintn_t data_size = 0;
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char *lang = CONFIG_EFI_PLATFORM_LANG_CODES;
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char *pos;
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/*
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* Variable PlatformLangCodes defines the language codes that the
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* machine can support.
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*/
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ret = efi_set_variable_int(L"PlatformLangCodes",
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&efi_global_variable_guid,
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EFI_VARIABLE_BOOTSERVICE_ACCESS |
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EFI_VARIABLE_RUNTIME_ACCESS |
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EFI_VARIABLE_READ_ONLY,
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sizeof(CONFIG_EFI_PLATFORM_LANG_CODES),
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CONFIG_EFI_PLATFORM_LANG_CODES, false);
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if (ret != EFI_SUCCESS)
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goto out;
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/*
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* Variable PlatformLang defines the language that the machine has been
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* configured for.
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*/
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ret = efi_get_variable_int(L"PlatformLang",
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&efi_global_variable_guid,
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NULL, &data_size, &pos, NULL);
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if (ret == EFI_BUFFER_TOO_SMALL) {
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/* The variable is already set. Do not change it. */
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ret = EFI_SUCCESS;
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goto out;
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}
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/*
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* The list of supported languages is semicolon separated. Use the first
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* language to initialize PlatformLang.
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*/
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pos = strchr(lang, ';');
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if (pos)
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*pos = 0;
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ret = efi_set_variable_int(L"PlatformLang",
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&efi_global_variable_guid,
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EFI_VARIABLE_NON_VOLATILE |
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EFI_VARIABLE_BOOTSERVICE_ACCESS |
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EFI_VARIABLE_RUNTIME_ACCESS,
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1 + strlen(lang), lang, false);
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out:
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if (ret != EFI_SUCCESS)
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printf("EFI: cannot initialize platform language settings\n");
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return ret;
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}
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#ifdef CONFIG_EFI_SECURE_BOOT
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/**
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* efi_init_secure_boot - initialize secure boot state
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*
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* Return: status code
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*/
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static efi_status_t efi_init_secure_boot(void)
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{
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efi_guid_t signature_types[] = {
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EFI_CERT_SHA256_GUID,
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EFI_CERT_X509_GUID,
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};
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efi_status_t ret;
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ret = efi_set_variable_int(L"SignatureSupport",
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&efi_global_variable_guid,
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EFI_VARIABLE_READ_ONLY |
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EFI_VARIABLE_BOOTSERVICE_ACCESS |
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EFI_VARIABLE_RUNTIME_ACCESS,
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sizeof(signature_types),
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&signature_types, false);
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if (ret != EFI_SUCCESS)
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printf("EFI: cannot initialize SignatureSupport variable\n");
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return ret;
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}
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#else
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static efi_status_t efi_init_secure_boot(void)
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{
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return EFI_SUCCESS;
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}
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#endif /* CONFIG_EFI_SECURE_BOOT */
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/**
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* efi_init_capsule - initialize capsule update state
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*
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* Return: status code
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*/
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static efi_status_t efi_init_capsule(void)
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{
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efi_status_t ret = EFI_SUCCESS;
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if (IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_UPDATE)) {
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ret = efi_set_variable_int(L"CapsuleMax",
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&efi_guid_capsule_report,
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EFI_VARIABLE_READ_ONLY |
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EFI_VARIABLE_BOOTSERVICE_ACCESS |
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EFI_VARIABLE_RUNTIME_ACCESS,
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22, L"CapsuleFFFF", false);
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if (ret != EFI_SUCCESS)
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printf("EFI: cannot initialize CapsuleMax variable\n");
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}
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return ret;
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}
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/**
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* efi_init_os_indications() - indicate supported features for OS requests
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*
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* Set the OsIndicationsSupported variable.
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*
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* Return: status code
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*/
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static efi_status_t efi_init_os_indications(void)
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{
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u64 os_indications_supported = 0;
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if (IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT))
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os_indications_supported |=
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EFI_OS_INDICATIONS_CAPSULE_RESULT_VAR_SUPPORTED;
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if (IS_ENABLED(CONFIG_EFI_CAPSULE_ON_DISK))
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os_indications_supported |=
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EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED;
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if (IS_ENABLED(CONFIG_EFI_CAPSULE_FIRMWARE_MANAGEMENT))
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os_indications_supported |=
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EFI_OS_INDICATIONS_FMP_CAPSULE_SUPPORTED;
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return efi_set_variable_int(L"OsIndicationsSupported",
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&efi_global_variable_guid,
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EFI_VARIABLE_BOOTSERVICE_ACCESS |
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EFI_VARIABLE_RUNTIME_ACCESS |
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EFI_VARIABLE_READ_ONLY,
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sizeof(os_indications_supported),
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&os_indications_supported, false);
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}
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/**
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* efi_clear_os_indications() - clear OsIndications
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*
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* Clear EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED
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*/
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static efi_status_t efi_clear_os_indications(void)
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{
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efi_uintn_t size;
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u64 os_indications;
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efi_status_t ret;
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size = sizeof(os_indications);
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ret = efi_get_variable_int(L"OsIndications", &efi_global_variable_guid,
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NULL, &size, &os_indications, NULL);
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if (ret != EFI_SUCCESS)
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os_indications = 0;
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else
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os_indications &=
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~EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED;
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ret = efi_set_variable_int(L"OsIndications", &efi_global_variable_guid,
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EFI_VARIABLE_NON_VOLATILE |
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EFI_VARIABLE_BOOTSERVICE_ACCESS |
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EFI_VARIABLE_RUNTIME_ACCESS,
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sizeof(os_indications), &os_indications,
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false);
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if (ret != EFI_SUCCESS)
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log_err("Setting %ls failed\n", L"OsIndications");
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return ret;
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}
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/**
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* efi_init_obj_list() - Initialize and populate EFI object list
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*
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* Return: status code
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*/
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efi_status_t efi_init_obj_list(void)
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{
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efi_status_t r, ret = EFI_SUCCESS;
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/* Initialize once only */
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if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED)
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return efi_obj_list_initialized;
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/* Allow unaligned memory access */
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allow_unaligned();
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/* Initialize root node */
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ret = efi_root_node_register();
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if (ret != EFI_SUCCESS)
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goto out;
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ret = efi_console_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#ifdef CONFIG_PARTITIONS
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ret = efi_disk_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#endif
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if (IS_ENABLED(CONFIG_EFI_RNG_PROTOCOL)) {
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ret = efi_rng_register();
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if (ret != EFI_SUCCESS)
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goto out;
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}
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/* Initialize variable services */
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ret = efi_init_variables();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Define supported languages */
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ret = efi_init_platform_lang();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Indicate supported features */
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ret = efi_init_os_indications();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Initialize system table */
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ret = efi_initialize_system_table();
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if (ret != EFI_SUCCESS)
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goto out;
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if (IS_ENABLED(CONFIG_EFI_ESRT)) {
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ret = efi_esrt_register();
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if (ret != EFI_SUCCESS)
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goto out;
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}
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if (IS_ENABLED(CONFIG_EFI_TCG2_PROTOCOL)) {
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ret = efi_tcg2_register();
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if (ret != EFI_SUCCESS)
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goto out;
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}
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/* Secure boot */
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ret = efi_init_secure_boot();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Indicate supported runtime services */
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ret = efi_init_runtime_supported();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Initialize EFI driver uclass */
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ret = efi_driver_init();
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if (ret != EFI_SUCCESS)
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goto out;
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if (IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT)) {
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ret = efi_load_capsule_drivers();
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if (ret != EFI_SUCCESS)
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goto out;
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}
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#if defined(CONFIG_LCD) || defined(CONFIG_DM_VIDEO)
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ret = efi_gop_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#endif
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#ifdef CONFIG_NET
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ret = efi_net_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#endif
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#ifdef CONFIG_GENERATE_ACPI_TABLE
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ret = efi_acpi_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#endif
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#ifdef CONFIG_GENERATE_SMBIOS_TABLE
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ret = efi_smbios_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#endif
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ret = efi_watchdog_register();
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if (ret != EFI_SUCCESS)
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goto out;
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ret = efi_init_capsule();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Initialize EFI runtime services */
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ret = efi_reset_system_init();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Execute capsules after reboot */
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if (IS_ENABLED(CONFIG_EFI_CAPSULE_ON_DISK) &&
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!IS_ENABLED(CONFIG_EFI_CAPSULE_ON_DISK_EARLY))
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ret = efi_launch_capsules();
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out:
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r = efi_clear_os_indications();
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if (ret == EFI_SUCCESS)
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ret = r;
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efi_obj_list_initialized = ret;
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return ret;
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}
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