u-boot/lib/efi_loader/Kconfig

config EFI_LOADER
	bool "Support running UEFI applications"
	depends on OF_LIBFDT && ( \
		ARM && (SYS_CPU = arm1136 || \
			SYS_CPU = arm1176 || \
			SYS_CPU = armv7   || \
			SYS_CPU = armv8)  || \
		X86 || RISCV || SANDBOX)
	# We need EFI_STUB_64BIT to be set on x86_64 with EFI_STUB
	depends on !EFI_STUB || !X86_64 || EFI_STUB_64BIT
	# We need EFI_STUB_32BIT to be set on x86_32 with EFI_STUB
	depends on !EFI_STUB || !X86 || X86_64 || EFI_STUB_32BIT
	depends on BLK
	depends on DM_ETH || !NET
	depends on !EFI_APP
	default y if !ARM || SYS_CPU = armv7 || SYS_CPU = armv8
	select CHARSET
	select DM_EVENT
	select EVENT
	select EVENT_DYNAMIC
	select LIB_UUID
	imply PARTITION_UUIDS
	select HAVE_BLOCK_DEVICE
	select REGEX
	imply FAT
	imply FAT_WRITE
	imply USB_KEYBOARD_FN_KEYS
	imply VIDEO_ANSI
	help
	  Select this option if you want to run UEFI applications (like GNU
	  GRUB or iPXE) on top of U-Boot. If this option is enabled, U-Boot
	  will expose the UEFI API to a loaded application, enabling it to
	  reuse U-Boot's device drivers.

if EFI_LOADER

config CMD_BOOTEFI_BOOTMGR
	bool "UEFI Boot Manager"
	default y
	help
	  Select this option if you want to select the UEFI binary to be booted
	  via UEFI variables Boot####, BootOrder, and BootNext. This enables the
	  'bootefi bootmgr' command.

config EFI_SETUP_EARLY
	bool
	default y

choice
	prompt "Store for non-volatile UEFI variables"
	default EFI_VARIABLE_FILE_STORE
	help
	  Select where non-volatile UEFI variables shall be stored.

config EFI_VARIABLE_FILE_STORE
	bool "Store non-volatile UEFI variables as file"
	depends on FAT_WRITE
	help
	  Select this option if you want non-volatile UEFI variables to be
	  stored as file /ubootefi.var on the EFI system partition.

config EFI_MM_COMM_TEE
	bool "UEFI variables storage service via OP-TEE"
	depends on OPTEE
	help
	  If OP-TEE is present and running StandAloneMM, dispatch all UEFI
	  variable related operations to that. The application will verify,
	  authenticate and store the variables on an RPMB.

config EFI_VARIABLE_NO_STORE
	bool "Don't persist non-volatile UEFI variables"
	help
	  If you choose this option, non-volatile variables cannot be persisted.
	  You could still provide non-volatile variables via
	  EFI_VARIABLES_PRESEED.

endchoice

config EFI_VARIABLES_PRESEED
	bool "Initial values for UEFI variables"
	depends on !EFI_MM_COMM_TEE
	help
	  Include a file with the initial values for non-volatile UEFI variables
	  into the U-Boot binary. If this configuration option is set, changes
	  to authentication related variables (PK, KEK, db, dbx) are not
	  allowed.

if EFI_VARIABLES_PRESEED

config EFI_VAR_SEED_FILE
	string "File with initial values of non-volatile UEFI variables"
	default ubootefi.var
	help
	  File with initial values of non-volatile UEFI variables. The file must
	  be in the same format as the storage in the EFI system partition. The
	  easiest way to create it is by setting the non-volatile variables in
	  U-Boot. If a relative file path is used, it is relative to the source
	  directory.

endif

config EFI_VAR_BUF_SIZE
	int "Memory size of the UEFI variable store"
	default 16384
	range 4096 2147483647
	help
	  This defines the size in bytes of the memory area reserved for keeping
	  UEFI variables.

	  When using StandAloneMM (CONFIG_EFI_MM_COMM_TEE=y) this value should
	  match the value of PcdFlashNvStorageVariableSize used to compile the
	  StandAloneMM module.

	  Minimum 4096, default 16384.

config EFI_GET_TIME
	bool "GetTime() runtime service"
	depends on DM_RTC
	default y
	help
	  Provide the GetTime() runtime service at boottime. This service
	  can be used by an EFI application to read the real time clock.

config EFI_SET_TIME
	bool "SetTime() runtime service"
	depends on EFI_GET_TIME
	default y if ARCH_QEMU || SANDBOX
	help
	  Provide the SetTime() runtime service at boottime. This service
	  can be used by an EFI application to adjust the real time clock.

config EFI_HAVE_CAPSULE_SUPPORT
	bool

config EFI_RUNTIME_UPDATE_CAPSULE
	bool "UpdateCapsule() runtime service"
	select EFI_HAVE_CAPSULE_SUPPORT
	help
	  Select this option if you want to use UpdateCapsule and
	  QueryCapsuleCapabilities API's.

config EFI_CAPSULE_ON_DISK
	bool "Enable capsule-on-disk support"
	depends on SYSRESET
	select EFI_HAVE_CAPSULE_SUPPORT
	help
	  Select this option if you want to use capsule-on-disk feature,
	  that is, capsules can be fetched and executed from files
	  under a specific directory on UEFI system partition instead of
	  via UpdateCapsule API.

config EFI_IGNORE_OSINDICATIONS
	bool "Ignore OsIndications for CapsuleUpdate on-disk"
	depends on EFI_CAPSULE_ON_DISK
	help
	  There are boards where U-Boot does not support SetVariable at runtime.
	  Select this option if you want to use the capsule-on-disk feature
	  without setting the EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED
	  flag in variable OsIndications.

config EFI_CAPSULE_ON_DISK_EARLY
	bool "Initiate capsule-on-disk at U-Boot boottime"
	depends on EFI_CAPSULE_ON_DISK
	select EFI_SETUP_EARLY
	help
	  Normally, without this option enabled, capsules will be
	  executed only at the first time of invoking one of efi command.
	  If this option is enabled, capsules will be enforced to be
	  executed as part of U-Boot initialisation so that they will
	  surely take place whatever is set to distro_bootcmd.

config EFI_CAPSULE_FIRMWARE
	bool

config EFI_CAPSULE_FIRMWARE_MANAGEMENT
	bool "Capsule: Firmware Management Protocol"
	depends on EFI_HAVE_CAPSULE_SUPPORT
	default y
	help
	  Select this option if you want to enable capsule-based
	  firmware update using Firmware Management Protocol.

config EFI_CAPSULE_FIRMWARE_FIT
	bool "FMP driver for FIT images"
	depends on FIT
	depends on EFI_CAPSULE_FIRMWARE_MANAGEMENT
	select UPDATE_FIT
	select DFU
	select SET_DFU_ALT_INFO
	select EFI_CAPSULE_FIRMWARE
	help
	  Select this option if you want to enable firmware management protocol
	  driver for FIT image

config EFI_CAPSULE_FIRMWARE_RAW
	bool "FMP driver for raw images"
	depends on EFI_CAPSULE_FIRMWARE_MANAGEMENT
	depends on SANDBOX || (!SANDBOX && !EFI_CAPSULE_FIRMWARE_FIT)
	select DFU_WRITE_ALT
	select DFU
	select SET_DFU_ALT_INFO
	select EFI_CAPSULE_FIRMWARE
	help
	  Select this option if you want to enable firmware management protocol
	  driver for raw image

config EFI_CAPSULE_AUTHENTICATE
	bool "Update Capsule authentication"
	depends on EFI_CAPSULE_FIRMWARE
	depends on EFI_CAPSULE_ON_DISK
	depends on EFI_CAPSULE_FIRMWARE_MANAGEMENT
	select HASH
	select SHA256
	select RSA
	select RSA_VERIFY
	select RSA_VERIFY_WITH_PKEY
	select X509_CERTIFICATE_PARSER
	select PKCS7_MESSAGE_PARSER
	select PKCS7_VERIFY
	select IMAGE_SIGN_INFO
	select EFI_SIGNATURE_SUPPORT
	help
	  Select this option if you want to enable capsule
	  authentication

config EFI_DEVICE_PATH_TO_TEXT
	bool "Device path to text protocol"
	default y
	help
	  The device path to text protocol converts device nodes and paths to
	  human readable strings.

config EFI_DEVICE_PATH_UTIL
	bool "Device path utilities protocol"
	default y
	help
	  The device path utilities protocol creates and manipulates device
	  paths and device nodes. It is required to run the EFI Shell.

config EFI_DT_FIXUP
	bool "Device tree fixup protocol"
	depends on !GENERATE_ACPI_TABLE
	default y
	help
	  The EFI device-tree fix-up protocol provides a function to let the
	  firmware apply fix-ups. This may be used by boot loaders.

config EFI_LOADER_HII
	bool "HII protocols"
	default y
	help
	  The Human Interface Infrastructure is a complicated framework that
	  allows UEFI applications to draw fancy menus and hook strings using
	  a translation framework.

	  U-Boot implements enough of its features to be able to run the UEFI
	  Shell, but not more than that.

config EFI_UNICODE_COLLATION_PROTOCOL2
	bool "Unicode collation protocol"
	default y
	help
	  The Unicode collation protocol is used for lexical comparisons. It is
	  required to run the UEFI shell.

if EFI_UNICODE_COLLATION_PROTOCOL2

config EFI_UNICODE_CAPITALIZATION
	bool "Support Unicode capitalization"
	default y
	help
	  Select this option to enable correct handling of the capitalization of
	  Unicode codepoints in the range 0x0000-0xffff. If this option is not
	  set, only the the correct handling of the letters of the codepage
	  used by the FAT file system is ensured.

endif

config EFI_LOADER_BOUNCE_BUFFER
	bool "EFI Applications use bounce buffers for DMA operations"
	depends on ARM64
	help
	  Some hardware does not support DMA to full 64bit addresses. For this
	  hardware we can create a bounce buffer so that payloads don't have to
	  worry about platform details.

config EFI_PLATFORM_LANG_CODES
	string "Language codes supported by firmware"
	default "en-US"
	help
	  This value is used to initialize the PlatformLangCodes variable. Its
	  value is a semicolon (;) separated list of language codes in native
	  RFC 4646 format, e.g. "en-US;de-DE". The first language code is used
	  to initialize the PlatformLang variable.

config EFI_HAVE_RUNTIME_RESET
	# bool "Reset runtime service is available"
	bool
	default y
	depends on ARCH_BCM283X || FSL_LAYERSCAPE || PSCI_RESET || \
		   SANDBOX || SYSRESET_X86

config EFI_GRUB_ARM32_WORKAROUND
	bool "Workaround for GRUB on 32bit ARM"
	default n if ARCH_BCM283X || ARCH_SUNXI || ARCH_QEMU
	default y
	depends on ARM && !ARM64
	help
	  GRUB prior to version 2.04 requires U-Boot to disable caches. This
	  workaround currently is also needed on systems with caches that
	  cannot be managed via CP15.

config EFI_RNG_PROTOCOL
	bool "EFI_RNG_PROTOCOL support"
	depends on DM_RNG
	default y
	help
	  Provide a EFI_RNG_PROTOCOL implementation using the hardware random
	  number generator of the platform.

config EFI_TCG2_PROTOCOL
	bool "EFI_TCG2_PROTOCOL support"
	default y
	depends on TPM_V2
	# Sandbox TPM currently fails on GetCapabilities needed for TCG2
	depends on !SANDBOX
	select SHA1
	select SHA256
	select SHA384
	select SHA512
	select HASH
	select SMBIOS_PARSER
	help
	  Provide a EFI_TCG2_PROTOCOL implementation using the TPM hardware
	  of the platform.

config EFI_TCG2_PROTOCOL_EVENTLOG_SIZE
	int "EFI_TCG2_PROTOCOL EventLog size"
	depends on EFI_TCG2_PROTOCOL
	default 65536
	help
		Define the size of the EventLog for EFI_TCG2_PROTOCOL. Note that
		this is going to be allocated twice. One for the eventlog it self
		and one for the configuration table that is required from the spec

config EFI_LOAD_FILE2_INITRD
	bool "EFI_FILE_LOAD2_PROTOCOL for Linux initial ramdisk"
	default y
	help
	  Linux v5.7 and later can make use of this option. If the boot option
	  selected by the UEFI boot manager specifies an existing file to be used
	  as initial RAM disk, a Linux specific Load File2 protocol will be
	  installed and Linux 5.7+ will ignore any initrd=<ramdisk> command line
	  argument.

config EFI_SECURE_BOOT
	bool "Enable EFI secure boot support"
	depends on EFI_LOADER && FIT_SIGNATURE
	select HASH
	select SHA256
	select RSA
	select RSA_VERIFY_WITH_PKEY
	select IMAGE_SIGN_INFO
	select ASYMMETRIC_KEY_TYPE
	select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
	select X509_CERTIFICATE_PARSER
	select PKCS7_MESSAGE_PARSER
	select PKCS7_VERIFY
	select EFI_SIGNATURE_SUPPORT
	help
	  Select this option to enable EFI secure boot support.
	  Once SecureBoot mode is enforced, any EFI binary can run only if
	  it is signed with a trusted key. To do that, you need to install,
	  at least, PK, KEK and db.

config EFI_SIGNATURE_SUPPORT
	bool

config EFI_ESRT
	bool "Enable the UEFI ESRT generation"
	depends on EFI_CAPSULE_FIRMWARE_MANAGEMENT
	default y
	help
	  Enabling this option creates the ESRT UEFI system table.

config EFI_RISCV_BOOT_PROTOCOL
	bool "RISCV_EFI_BOOT_PROTOCOL support"
	default y
	depends on RISCV
	help
	  The EFI_RISCV_BOOT_PROTOCOL is used to transfer the boot hart ID
	  to the next boot stage. It should be enabled as it is meant to
	  replace the transfer via the device-tree. The latter is not
	  possible on systems using ACPI.

endif