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https://github.com/brain-hackers/u-boot-brain
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![Heinrich Schuchardt](/assets/img/avatar_default.png)
To let a board implement the runtime version of SetTime() we have to provide the definition of the weak function in an include. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
663 lines
23 KiB
C
663 lines
23 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* EFI application loader
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*
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* Copyright (c) 2016 Alexander Graf
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*/
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#ifndef _EFI_LOADER_H
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#define _EFI_LOADER_H 1
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#include <common.h>
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#include <part_efi.h>
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#include <efi_api.h>
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/* No need for efi loader support in SPL */
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#if CONFIG_IS_ENABLED(EFI_LOADER)
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#include <linux/list.h>
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/* Maximum number of configuration tables */
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#define EFI_MAX_CONFIGURATION_TABLES 16
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/* GUID used by the root node */
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#define U_BOOT_GUID \
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EFI_GUID(0xe61d73b9, 0xa384, 0x4acc, \
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0xae, 0xab, 0x82, 0xe8, 0x28, 0xf3, 0x62, 0x8b)
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/* Root node */
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extern efi_handle_t efi_root;
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int __efi_entry_check(void);
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int __efi_exit_check(void);
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const char *__efi_nesting(void);
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const char *__efi_nesting_inc(void);
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const char *__efi_nesting_dec(void);
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/*
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* Enter the u-boot world from UEFI:
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*/
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#define EFI_ENTRY(format, ...) do { \
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assert(__efi_entry_check()); \
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debug("%sEFI: Entry %s(" format ")\n", __efi_nesting_inc(), \
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__func__, ##__VA_ARGS__); \
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} while(0)
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/*
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* Exit the u-boot world back to UEFI:
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*/
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#define EFI_EXIT(ret) ({ \
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typeof(ret) _r = ret; \
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debug("%sEFI: Exit: %s: %u\n", __efi_nesting_dec(), \
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__func__, (u32)((uintptr_t) _r & ~EFI_ERROR_MASK)); \
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assert(__efi_exit_check()); \
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_r; \
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})
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/*
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* Call non-void UEFI function from u-boot and retrieve return value:
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*/
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#define EFI_CALL(exp) ({ \
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debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
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assert(__efi_exit_check()); \
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typeof(exp) _r = exp; \
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assert(__efi_entry_check()); \
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debug("%sEFI: %lu returned by %s\n", __efi_nesting_dec(), \
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(unsigned long)((uintptr_t)_r & ~EFI_ERROR_MASK), #exp); \
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_r; \
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})
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/*
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* Call void UEFI function from u-boot:
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*/
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#define EFI_CALL_VOID(exp) do { \
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debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
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assert(__efi_exit_check()); \
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exp; \
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assert(__efi_entry_check()); \
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debug("%sEFI: Return From: %s\n", __efi_nesting_dec(), #exp); \
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} while(0)
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/*
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* Write an indented message with EFI prefix
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*/
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#define EFI_PRINT(format, ...) ({ \
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debug("%sEFI: " format, __efi_nesting(), \
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##__VA_ARGS__); \
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})
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#ifdef CONFIG_SYS_CACHELINE_SIZE
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#define EFI_CACHELINE_SIZE CONFIG_SYS_CACHELINE_SIZE
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#else
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/* Just use the greatest cache flush alignment requirement I'm aware of */
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#define EFI_CACHELINE_SIZE 128
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#endif
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/* Key identifying current memory map */
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extern efi_uintn_t efi_memory_map_key;
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extern struct efi_runtime_services efi_runtime_services;
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extern struct efi_system_table systab;
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extern struct efi_simple_text_output_protocol efi_con_out;
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extern struct efi_simple_text_input_protocol efi_con_in;
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extern struct efi_console_control_protocol efi_console_control;
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extern const struct efi_device_path_to_text_protocol efi_device_path_to_text;
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/* implementation of the EFI_DEVICE_PATH_UTILITIES_PROTOCOL */
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extern const struct efi_device_path_utilities_protocol
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efi_device_path_utilities;
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/* deprecated version of the EFI_UNICODE_COLLATION_PROTOCOL */
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extern const struct efi_unicode_collation_protocol
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efi_unicode_collation_protocol;
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/* current version of the EFI_UNICODE_COLLATION_PROTOCOL */
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extern const struct efi_unicode_collation_protocol
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efi_unicode_collation_protocol2;
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extern const struct efi_hii_config_routing_protocol efi_hii_config_routing;
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extern const struct efi_hii_config_access_protocol efi_hii_config_access;
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extern const struct efi_hii_database_protocol efi_hii_database;
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extern const struct efi_hii_string_protocol efi_hii_string;
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uint16_t *efi_dp_str(struct efi_device_path *dp);
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/* GUID of the U-Boot root node */
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extern const efi_guid_t efi_u_boot_guid;
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/* GUID of the EFI_BLOCK_IO_PROTOCOL */
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extern const efi_guid_t efi_block_io_guid;
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extern const efi_guid_t efi_global_variable_guid;
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extern const efi_guid_t efi_guid_console_control;
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extern const efi_guid_t efi_guid_device_path;
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/* GUID of the EFI_DRIVER_BINDING_PROTOCOL */
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extern const efi_guid_t efi_guid_driver_binding_protocol;
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/* event group ExitBootServices() invoked */
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extern const efi_guid_t efi_guid_event_group_exit_boot_services;
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/* event group SetVirtualAddressMap() invoked */
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extern const efi_guid_t efi_guid_event_group_virtual_address_change;
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/* event group memory map changed */
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extern const efi_guid_t efi_guid_event_group_memory_map_change;
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/* event group boot manager about to boot */
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extern const efi_guid_t efi_guid_event_group_ready_to_boot;
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/* event group ResetSystem() invoked (before ExitBootServices) */
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extern const efi_guid_t efi_guid_event_group_reset_system;
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/* GUID of the device tree table */
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extern const efi_guid_t efi_guid_fdt;
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extern const efi_guid_t efi_guid_loaded_image;
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extern const efi_guid_t efi_guid_loaded_image_device_path;
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extern const efi_guid_t efi_guid_device_path_to_text_protocol;
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extern const efi_guid_t efi_simple_file_system_protocol_guid;
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extern const efi_guid_t efi_file_info_guid;
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/* GUID for file system information */
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extern const efi_guid_t efi_file_system_info_guid;
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extern const efi_guid_t efi_guid_device_path_utilities_protocol;
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/* GUID of the deprecated Unicode collation protocol */
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extern const efi_guid_t efi_guid_unicode_collation_protocol;
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/* GUID of the Unicode collation protocol */
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extern const efi_guid_t efi_guid_unicode_collation_protocol2;
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extern const efi_guid_t efi_guid_hii_config_routing_protocol;
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extern const efi_guid_t efi_guid_hii_config_access_protocol;
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extern const efi_guid_t efi_guid_hii_database_protocol;
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extern const efi_guid_t efi_guid_hii_string_protocol;
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extern unsigned int __efi_runtime_start, __efi_runtime_stop;
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extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
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/**
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* struct efi_open_protocol_info_item - open protocol info item
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*
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* When a protocol is opened a open protocol info entry is created.
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* These are maintained in a list.
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*
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* @link: link to the list of open protocol info entries of a protocol
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* @info: information about the opening of a protocol
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*/
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struct efi_open_protocol_info_item {
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struct list_head link;
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struct efi_open_protocol_info_entry info;
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};
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/**
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* struct efi_handler - single protocol interface of a handle
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*
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* When the UEFI payload wants to open a protocol on an object to get its
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* interface (usually a struct with callback functions), this struct maps the
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* protocol GUID to the respective protocol interface
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*
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* @link: link to the list of protocols of a handle
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* @guid: GUID of the protocol
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* @protocol_interface: protocol interface
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* @open_infos link to the list of open protocol info items
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*/
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struct efi_handler {
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struct list_head link;
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const efi_guid_t *guid;
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void *protocol_interface;
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struct list_head open_infos;
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};
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/**
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* enum efi_object_type - type of EFI object
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*
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* In UnloadImage we must be able to identify if the handle relates to a
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* started image.
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*/
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enum efi_object_type {
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EFI_OBJECT_TYPE_UNDEFINED = 0,
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EFI_OBJECT_TYPE_U_BOOT_FIRMWARE,
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EFI_OBJECT_TYPE_LOADED_IMAGE,
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EFI_OBJECT_TYPE_STARTED_IMAGE,
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};
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/**
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* struct efi_object - dereferenced EFI handle
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*
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* @link: pointers to put the handle into a linked list
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* @protocols: linked list with the protocol interfaces installed on this
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* handle
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*
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* UEFI offers a flexible and expandable object model. The objects in the UEFI
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* API are devices, drivers, and loaded images. struct efi_object is our storage
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* structure for these objects.
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*
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* When including this structure into a larger structure always put it first so
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* that when deleting a handle the whole encompassing structure can be freed.
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*
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* A pointer to this structure is referred to as a handle. Typedef efi_handle_t
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* has been created for such pointers.
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*/
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struct efi_object {
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/* Every UEFI object is part of a global object list */
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struct list_head link;
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/* The list of protocols */
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struct list_head protocols;
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enum efi_object_type type;
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};
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/**
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* struct efi_loaded_image_obj - handle of a loaded image
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*
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* @header: EFI object header
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* @exit_status: exit status passed to Exit()
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* @exit_data_size: exit data size passed to Exit()
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* @exit_data: exit data passed to Exit()
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* @exit_jmp: long jump buffer for returning form started image
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* @entry: entry address of the relocated image
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*/
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struct efi_loaded_image_obj {
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struct efi_object header;
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efi_status_t exit_status;
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efi_uintn_t *exit_data_size;
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u16 **exit_data;
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struct jmp_buf_data exit_jmp;
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EFIAPI efi_status_t (*entry)(efi_handle_t image_handle,
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struct efi_system_table *st);
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u16 image_type;
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};
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/**
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* struct efi_event
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*
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* @link: Link to list of all events
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* @type: Type of event, see efi_create_event
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* @notify_tpl: Task priority level of notifications
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* @nofify_function: Function to call when the event is triggered
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* @notify_context: Data to be passed to the notify function
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* @group: Event group
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* @trigger_time: Period of the timer
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* @trigger_next: Next time to trigger the timer
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* @trigger_type: Type of timer, see efi_set_timer
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* @is_queued: The notification function is queued
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* @is_signaled: The event occurred. The event is in the signaled state.
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*/
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struct efi_event {
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struct list_head link;
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uint32_t type;
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efi_uintn_t notify_tpl;
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void (EFIAPI *notify_function)(struct efi_event *event, void *context);
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void *notify_context;
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const efi_guid_t *group;
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u64 trigger_next;
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u64 trigger_time;
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enum efi_timer_delay trigger_type;
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bool is_queued;
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bool is_signaled;
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};
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/* This list contains all UEFI objects we know of */
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extern struct list_head efi_obj_list;
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/* List of all events */
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extern struct list_head efi_events;
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/**
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* struct efi_protocol_notification - handle for notified protocol
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*
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* When a protocol interface is installed for which an event was registered with
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* the RegisterProtocolNotify() service this structure is used to hold the
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* handle on which the protocol interface was installed.
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*
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* @link: link to list of all handles notified for this event
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* @handle: handle on which the notified protocol interface was installed
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*/
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struct efi_protocol_notification {
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struct list_head link;
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efi_handle_t handle;
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};
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/**
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* efi_register_notify_event - event registered by RegisterProtocolNotify()
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*
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* The address of this structure serves as registration value.
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*
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* @link: link to list of all registered events
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* @event: registered event. The same event may registered for multiple
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* GUIDs.
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* @protocol: protocol for which the event is registered
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* @handles: linked list of all handles on which the notified protocol was
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* installed
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*/
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struct efi_register_notify_event {
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struct list_head link;
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struct efi_event *event;
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efi_guid_t protocol;
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struct list_head handles;
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};
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/* List of all events registered by RegisterProtocolNotify() */
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extern struct list_head efi_register_notify_events;
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/* Initialize efi execution environment */
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efi_status_t efi_init_obj_list(void);
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/* Called by bootefi to initialize root node */
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efi_status_t efi_root_node_register(void);
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/* Called by bootefi to initialize runtime */
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efi_status_t efi_initialize_system_table(void);
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/* Called by bootefi to make console interface available */
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efi_status_t efi_console_register(void);
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/* Called by bootefi to make all disk storage accessible as EFI objects */
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efi_status_t efi_disk_register(void);
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/* Create handles and protocols for the partitions of a block device */
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int efi_disk_create_partitions(efi_handle_t parent, struct blk_desc *desc,
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const char *if_typename, int diskid,
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const char *pdevname);
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/* Called by bootefi to make GOP (graphical) interface available */
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efi_status_t efi_gop_register(void);
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/* Called by bootefi to make the network interface available */
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efi_status_t efi_net_register(void);
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/* Called by bootefi to make the watchdog available */
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efi_status_t efi_watchdog_register(void);
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/* Called by bootefi to make SMBIOS tables available */
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/**
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* efi_acpi_register() - write out ACPI tables
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*
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* Called by bootefi to make ACPI tables available
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*
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* @return 0 if OK, -ENOMEM if no memory is available for the tables
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*/
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efi_status_t efi_acpi_register(void);
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/**
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* efi_smbios_register() - write out SMBIOS tables
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*
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* Called by bootefi to make SMBIOS tables available
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*
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* @return 0 if OK, -ENOMEM if no memory is available for the tables
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*/
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efi_status_t efi_smbios_register(void);
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struct efi_simple_file_system_protocol *
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efi_fs_from_path(struct efi_device_path *fp);
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/* Called by networking code to memorize the dhcp ack package */
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void efi_net_set_dhcp_ack(void *pkt, int len);
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/* Called by efi_set_watchdog_timer to reset the timer */
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efi_status_t efi_set_watchdog(unsigned long timeout);
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/* Called from places to check whether a timer expired */
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void efi_timer_check(void);
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/* PE loader implementation */
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efi_status_t efi_load_pe(struct efi_loaded_image_obj *handle, void *efi,
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struct efi_loaded_image *loaded_image_info);
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/* Called once to store the pristine gd pointer */
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void efi_save_gd(void);
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/* Special case handler for error/abort that just tries to dtrt to get
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* back to u-boot world */
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void efi_restore_gd(void);
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/* Call this to relocate the runtime section to an address space */
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void efi_runtime_relocate(ulong offset, struct efi_mem_desc *map);
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/* Call this to set the current device name */
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void efi_set_bootdev(const char *dev, const char *devnr, const char *path);
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/* Add a new object to the object list. */
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void efi_add_handle(efi_handle_t obj);
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/* Create handle */
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efi_status_t efi_create_handle(efi_handle_t *handle);
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/* Delete handle */
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void efi_delete_handle(efi_handle_t obj);
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/* Call this to validate a handle and find the EFI object for it */
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struct efi_object *efi_search_obj(const efi_handle_t handle);
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/* Load image */
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efi_status_t EFIAPI efi_load_image(bool boot_policy,
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efi_handle_t parent_image,
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struct efi_device_path *file_path,
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void *source_buffer,
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efi_uintn_t source_size,
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efi_handle_t *image_handle);
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/* Start image */
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efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle,
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efi_uintn_t *exit_data_size,
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u16 **exit_data);
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/* Unload image */
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efi_status_t EFIAPI efi_unload_image(efi_handle_t image_handle);
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/* Find a protocol on a handle */
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efi_status_t efi_search_protocol(const efi_handle_t handle,
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const efi_guid_t *protocol_guid,
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struct efi_handler **handler);
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/* Install new protocol on a handle */
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efi_status_t efi_add_protocol(const efi_handle_t handle,
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const efi_guid_t *protocol,
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void *protocol_interface);
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/* Delete protocol from a handle */
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efi_status_t efi_remove_protocol(const efi_handle_t handle,
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const efi_guid_t *protocol,
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void *protocol_interface);
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/* Delete all protocols from a handle */
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efi_status_t efi_remove_all_protocols(const efi_handle_t handle);
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/* Install multiple protocol interfaces */
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efi_status_t EFIAPI efi_install_multiple_protocol_interfaces
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(efi_handle_t *handle, ...);
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/* Call this to create an event */
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efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl,
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void (EFIAPI *notify_function) (
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struct efi_event *event,
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void *context),
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void *notify_context, efi_guid_t *group,
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struct efi_event **event);
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/* Call this to set a timer */
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efi_status_t efi_set_timer(struct efi_event *event, enum efi_timer_delay type,
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uint64_t trigger_time);
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/* Call this to signal an event */
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void efi_signal_event(struct efi_event *event, bool check_tpl);
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/* open file system: */
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struct efi_simple_file_system_protocol *efi_simple_file_system(
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struct blk_desc *desc, int part, struct efi_device_path *dp);
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/* open file from device-path: */
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struct efi_file_handle *efi_file_from_path(struct efi_device_path *fp);
|
|
|
|
/**
|
|
* efi_size_in_pages() - convert size in bytes to size in pages
|
|
*
|
|
* This macro returns the number of EFI memory pages required to hold 'size'
|
|
* bytes.
|
|
*
|
|
* @size: size in bytes
|
|
* Return: size in pages
|
|
*/
|
|
#define efi_size_in_pages(size) ((size + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT)
|
|
/* Generic EFI memory allocator, call this to get memory */
|
|
void *efi_alloc(uint64_t len, int memory_type);
|
|
/* More specific EFI memory allocator, called by EFI payloads */
|
|
efi_status_t efi_allocate_pages(int type, int memory_type, efi_uintn_t pages,
|
|
uint64_t *memory);
|
|
/* EFI memory free function. */
|
|
efi_status_t efi_free_pages(uint64_t memory, efi_uintn_t pages);
|
|
/* EFI memory allocator for small allocations */
|
|
efi_status_t efi_allocate_pool(int pool_type, efi_uintn_t size,
|
|
void **buffer);
|
|
/* EFI pool memory free function. */
|
|
efi_status_t efi_free_pool(void *buffer);
|
|
/* Returns the EFI memory map */
|
|
efi_status_t efi_get_memory_map(efi_uintn_t *memory_map_size,
|
|
struct efi_mem_desc *memory_map,
|
|
efi_uintn_t *map_key,
|
|
efi_uintn_t *descriptor_size,
|
|
uint32_t *descriptor_version);
|
|
/* Adds a range into the EFI memory map */
|
|
uint64_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
|
|
bool overlap_only_ram);
|
|
/* Called by board init to initialize the EFI drivers */
|
|
efi_status_t efi_driver_init(void);
|
|
/* Called by board init to initialize the EFI memory map */
|
|
int efi_memory_init(void);
|
|
/* Adds new or overrides configuration table entry to the system table */
|
|
efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table);
|
|
/* Sets up a loaded image */
|
|
efi_status_t efi_setup_loaded_image(struct efi_device_path *device_path,
|
|
struct efi_device_path *file_path,
|
|
struct efi_loaded_image_obj **handle_ptr,
|
|
struct efi_loaded_image **info_ptr);
|
|
/* Print information about all loaded images */
|
|
void efi_print_image_infos(void *pc);
|
|
|
|
#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER
|
|
extern void *efi_bounce_buffer;
|
|
#define EFI_LOADER_BOUNCE_BUFFER_SIZE (64 * 1024 * 1024)
|
|
#endif
|
|
|
|
|
|
struct efi_device_path *efi_dp_next(const struct efi_device_path *dp);
|
|
int efi_dp_match(const struct efi_device_path *a,
|
|
const struct efi_device_path *b);
|
|
struct efi_object *efi_dp_find_obj(struct efi_device_path *dp,
|
|
struct efi_device_path **rem);
|
|
/* get size of the first device path instance excluding end node */
|
|
efi_uintn_t efi_dp_instance_size(const struct efi_device_path *dp);
|
|
/* size of multi-instance device path excluding end node */
|
|
efi_uintn_t efi_dp_size(const struct efi_device_path *dp);
|
|
struct efi_device_path *efi_dp_dup(const struct efi_device_path *dp);
|
|
struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1,
|
|
const struct efi_device_path *dp2);
|
|
struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp,
|
|
const struct efi_device_path *node);
|
|
/* Create a device path node of given type, sub-type, length */
|
|
struct efi_device_path *efi_dp_create_device_node(const u8 type,
|
|
const u8 sub_type,
|
|
const u16 length);
|
|
/* Append device path instance */
|
|
struct efi_device_path *efi_dp_append_instance(
|
|
const struct efi_device_path *dp,
|
|
const struct efi_device_path *dpi);
|
|
/* Get next device path instance */
|
|
struct efi_device_path *efi_dp_get_next_instance(struct efi_device_path **dp,
|
|
efi_uintn_t *size);
|
|
/* Check if a device path contains muliple instances */
|
|
bool efi_dp_is_multi_instance(const struct efi_device_path *dp);
|
|
|
|
struct efi_device_path *efi_dp_from_dev(struct udevice *dev);
|
|
struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part);
|
|
/* Create a device node for a block device partition. */
|
|
struct efi_device_path *efi_dp_part_node(struct blk_desc *desc, int part);
|
|
struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part,
|
|
const char *path);
|
|
struct efi_device_path *efi_dp_from_eth(void);
|
|
struct efi_device_path *efi_dp_from_mem(uint32_t mem_type,
|
|
uint64_t start_address,
|
|
uint64_t end_address);
|
|
/* Determine the last device path node that is not the end node. */
|
|
const struct efi_device_path *efi_dp_last_node(
|
|
const struct efi_device_path *dp);
|
|
efi_status_t efi_dp_split_file_path(struct efi_device_path *full_path,
|
|
struct efi_device_path **device_path,
|
|
struct efi_device_path **file_path);
|
|
efi_status_t efi_dp_from_name(const char *dev, const char *devnr,
|
|
const char *path,
|
|
struct efi_device_path **device,
|
|
struct efi_device_path **file);
|
|
|
|
#define EFI_DP_TYPE(_dp, _type, _subtype) \
|
|
(((_dp)->type == DEVICE_PATH_TYPE_##_type) && \
|
|
((_dp)->sub_type == DEVICE_PATH_SUB_TYPE_##_subtype))
|
|
|
|
/**
|
|
* ascii2unicode() - convert ASCII string to UTF-16 string
|
|
*
|
|
* A zero terminated ASCII string is converted to a zero terminated UTF-16
|
|
* string. The output buffer must be preassigned.
|
|
*
|
|
* @unicode: preassigned output buffer for UTF-16 string
|
|
* @ascii: ASCII string to be converted
|
|
*/
|
|
static inline void ascii2unicode(u16 *unicode, const char *ascii)
|
|
{
|
|
while (*ascii)
|
|
*(unicode++) = *(ascii++);
|
|
*unicode = 0;
|
|
}
|
|
|
|
static inline int guidcmp(const efi_guid_t *g1, const efi_guid_t *g2)
|
|
{
|
|
return memcmp(g1, g2, sizeof(efi_guid_t));
|
|
}
|
|
|
|
/*
|
|
* Use these to indicate that your code / data should go into the EFI runtime
|
|
* section and thus still be available when the OS is running
|
|
*/
|
|
#define __efi_runtime_data __attribute__ ((section (".data.efi_runtime")))
|
|
#define __efi_runtime __attribute__ ((section (".text.efi_runtime")))
|
|
|
|
/* Update CRC32 in table header */
|
|
void __efi_runtime efi_update_table_header_crc32(struct efi_table_hdr *table);
|
|
|
|
/* Call this with mmio_ptr as the _pointer_ to a pointer to an MMIO region
|
|
* to make it available at runtime */
|
|
efi_status_t efi_add_runtime_mmio(void *mmio_ptr, u64 len);
|
|
|
|
/* Boards may provide the functions below to implement RTS functionality */
|
|
|
|
void __efi_runtime EFIAPI efi_reset_system(
|
|
enum efi_reset_type reset_type,
|
|
efi_status_t reset_status,
|
|
unsigned long data_size, void *reset_data);
|
|
|
|
/* Architecture specific initialization of the EFI subsystem */
|
|
efi_status_t efi_reset_system_init(void);
|
|
|
|
efi_status_t __efi_runtime EFIAPI efi_get_time(
|
|
struct efi_time *time,
|
|
struct efi_time_cap *capabilities);
|
|
|
|
efi_status_t __efi_runtime EFIAPI efi_set_time(struct efi_time *time);
|
|
|
|
#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
|
|
/*
|
|
* Entry point for the tests of the EFI API.
|
|
* It is called by 'bootefi selftest'
|
|
*/
|
|
efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle,
|
|
struct efi_system_table *systab);
|
|
#endif
|
|
|
|
efi_status_t EFIAPI efi_get_variable(u16 *variable_name,
|
|
const efi_guid_t *vendor, u32 *attributes,
|
|
efi_uintn_t *data_size, void *data);
|
|
efi_status_t EFIAPI efi_get_next_variable_name(efi_uintn_t *variable_name_size,
|
|
u16 *variable_name,
|
|
const efi_guid_t *vendor);
|
|
efi_status_t EFIAPI efi_set_variable(u16 *variable_name,
|
|
const efi_guid_t *vendor, u32 attributes,
|
|
efi_uintn_t data_size, const void *data);
|
|
|
|
/*
|
|
* See section 3.1.3 in the v2.7 UEFI spec for more details on
|
|
* the layout of EFI_LOAD_OPTION. In short it is:
|
|
*
|
|
* typedef struct _EFI_LOAD_OPTION {
|
|
* UINT32 Attributes;
|
|
* UINT16 FilePathListLength;
|
|
* // CHAR16 Description[]; <-- variable length, NULL terminated
|
|
* // EFI_DEVICE_PATH_PROTOCOL FilePathList[];
|
|
* <-- FilePathListLength bytes
|
|
* // UINT8 OptionalData[];
|
|
* } EFI_LOAD_OPTION;
|
|
*/
|
|
struct efi_load_option {
|
|
u32 attributes;
|
|
u16 file_path_length;
|
|
u16 *label;
|
|
struct efi_device_path *file_path;
|
|
const u8 *optional_data;
|
|
};
|
|
|
|
void efi_deserialize_load_option(struct efi_load_option *lo, u8 *data);
|
|
unsigned long efi_serialize_load_option(struct efi_load_option *lo, u8 **data);
|
|
efi_status_t efi_bootmgr_load(efi_handle_t *handle);
|
|
|
|
#else /* CONFIG_IS_ENABLED(EFI_LOADER) */
|
|
|
|
/* Without CONFIG_EFI_LOADER we don't have a runtime section, stub it out */
|
|
#define __efi_runtime_data
|
|
#define __efi_runtime
|
|
static inline efi_status_t efi_add_runtime_mmio(void *mmio_ptr, u64 len)
|
|
{
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/* No loader configured, stub out EFI_ENTRY */
|
|
static inline void efi_restore_gd(void) { }
|
|
static inline void efi_set_bootdev(const char *dev, const char *devnr,
|
|
const char *path) { }
|
|
static inline void efi_net_set_dhcp_ack(void *pkt, int len) { }
|
|
static inline void efi_print_image_infos(void *pc) { }
|
|
|
|
#endif /* CONFIG_IS_ENABLED(EFI_LOADER) */
|
|
|
|
#endif /* _EFI_LOADER_H */
|