| /* SPDX-License-Identifier: GPL-2.0 */ |
| |
| #ifndef _DRIVERS_FIRMWARE_EFI_EFISTUB_H |
| #define _DRIVERS_FIRMWARE_EFI_EFISTUB_H |
| |
| #include <linux/compiler.h> |
| #include <linux/efi.h> |
| #include <linux/kernel.h> |
| #include <linux/kern_levels.h> |
| #include <linux/types.h> |
| #include <asm/efi.h> |
| |
| /* |
| * __init annotations should not be used in the EFI stub, since the code is |
| * either included in the decompressor (x86, ARM) where they have no effect, |
| * or the whole stub is __init annotated at the section level (arm64), by |
| * renaming the sections, in which case the __init annotation will be |
| * redundant, and will result in section names like .init.init.text, and our |
| * linker script does not expect that. |
| */ |
| #undef __init |
| |
| /* |
| * Allow the platform to override the allocation granularity: this allows |
| * systems that have the capability to run with a larger page size to deal |
| * with the allocations for initrd and fdt more efficiently. |
| */ |
| #ifndef EFI_ALLOC_ALIGN |
| #define EFI_ALLOC_ALIGN EFI_PAGE_SIZE |
| #endif |
| |
| extern bool efi_nochunk; |
| extern bool efi_nokaslr; |
| extern int efi_loglevel; |
| extern bool efi_novamap; |
| |
| extern const efi_system_table_t *efi_system_table; |
| |
| typedef union efi_dxe_services_table efi_dxe_services_table_t; |
| extern const efi_dxe_services_table_t *efi_dxe_table; |
| |
| efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, |
| efi_system_table_t *sys_table_arg); |
| |
| #ifndef ARCH_HAS_EFISTUB_WRAPPERS |
| |
| #define efi_is_native() (true) |
| #define efi_bs_call(func, ...) efi_system_table->boottime->func(__VA_ARGS__) |
| #define efi_rt_call(func, ...) efi_system_table->runtime->func(__VA_ARGS__) |
| #define efi_dxe_call(func, ...) efi_dxe_table->func(__VA_ARGS__) |
| #define efi_table_attr(inst, attr) (inst->attr) |
| #define efi_call_proto(inst, func, ...) inst->func(inst, ##__VA_ARGS__) |
| |
| #endif |
| |
| #define efi_info(fmt, ...) \ |
| efi_printk(KERN_INFO fmt, ##__VA_ARGS__) |
| #define efi_warn(fmt, ...) \ |
| efi_printk(KERN_WARNING "WARNING: " fmt, ##__VA_ARGS__) |
| #define efi_err(fmt, ...) \ |
| efi_printk(KERN_ERR "ERROR: " fmt, ##__VA_ARGS__) |
| #define efi_debug(fmt, ...) \ |
| efi_printk(KERN_DEBUG "DEBUG: " fmt, ##__VA_ARGS__) |
| |
| #define efi_printk_once(fmt, ...) \ |
| ({ \ |
| static bool __print_once; \ |
| bool __ret_print_once = !__print_once; \ |
| \ |
| if (!__print_once) { \ |
| __print_once = true; \ |
| efi_printk(fmt, ##__VA_ARGS__); \ |
| } \ |
| __ret_print_once; \ |
| }) |
| |
| #define efi_info_once(fmt, ...) \ |
| efi_printk_once(KERN_INFO fmt, ##__VA_ARGS__) |
| #define efi_warn_once(fmt, ...) \ |
| efi_printk_once(KERN_WARNING "WARNING: " fmt, ##__VA_ARGS__) |
| #define efi_err_once(fmt, ...) \ |
| efi_printk_once(KERN_ERR "ERROR: " fmt, ##__VA_ARGS__) |
| #define efi_debug_once(fmt, ...) \ |
| efi_printk_once(KERN_DEBUG "DEBUG: " fmt, ##__VA_ARGS__) |
| |
| /* Helper macros for the usual case of using simple C variables: */ |
| #ifndef fdt_setprop_inplace_var |
| #define fdt_setprop_inplace_var(fdt, node_offset, name, var) \ |
| fdt_setprop_inplace((fdt), (node_offset), (name), &(var), sizeof(var)) |
| #endif |
| |
| #ifndef fdt_setprop_var |
| #define fdt_setprop_var(fdt, node_offset, name, var) \ |
| fdt_setprop((fdt), (node_offset), (name), &(var), sizeof(var)) |
| #endif |
| |
| #define get_efi_var(name, vendor, ...) \ |
| efi_rt_call(get_variable, (efi_char16_t *)(name), \ |
| (efi_guid_t *)(vendor), __VA_ARGS__) |
| |
| #define set_efi_var(name, vendor, ...) \ |
| efi_rt_call(set_variable, (efi_char16_t *)(name), \ |
| (efi_guid_t *)(vendor), __VA_ARGS__) |
| |
| #define efi_get_handle_at(array, idx) \ |
| (efi_is_native() ? (array)[idx] \ |
| : (efi_handle_t)(unsigned long)((u32 *)(array))[idx]) |
| |
| #define efi_get_handle_num(size) \ |
| ((size) / (efi_is_native() ? sizeof(efi_handle_t) : sizeof(u32))) |
| |
| #define for_each_efi_handle(handle, array, size, i) \ |
| for (i = 0; \ |
| i < efi_get_handle_num(size) && \ |
| ((handle = efi_get_handle_at((array), i)) || true); \ |
| i++) |
| |
| static inline |
| void efi_set_u64_split(u64 data, u32 *lo, u32 *hi) |
| { |
| *lo = lower_32_bits(data); |
| *hi = upper_32_bits(data); |
| } |
| |
| /* |
| * Allocation types for calls to boottime->allocate_pages. |
| */ |
| #define EFI_ALLOCATE_ANY_PAGES 0 |
| #define EFI_ALLOCATE_MAX_ADDRESS 1 |
| #define EFI_ALLOCATE_ADDRESS 2 |
| #define EFI_MAX_ALLOCATE_TYPE 3 |
| |
| /* |
| * The type of search to perform when calling boottime->locate_handle |
| */ |
| #define EFI_LOCATE_ALL_HANDLES 0 |
| #define EFI_LOCATE_BY_REGISTER_NOTIFY 1 |
| #define EFI_LOCATE_BY_PROTOCOL 2 |
| |
| /* |
| * boottime->stall takes the time period in microseconds |
| */ |
| #define EFI_USEC_PER_SEC 1000000 |
| |
| /* |
| * boottime->set_timer takes the time in 100ns units |
| */ |
| #define EFI_100NSEC_PER_USEC ((u64)10) |
| |
| /* |
| * An efi_boot_memmap is used by efi_get_memory_map() to return the |
| * EFI memory map in a dynamically allocated buffer. |
| * |
| * The buffer allocated for the EFI memory map includes extra room for |
| * a minimum of EFI_MMAP_NR_SLACK_SLOTS additional EFI memory descriptors. |
| * This facilitates the reuse of the EFI memory map buffer when a second |
| * call to ExitBootServices() is needed because of intervening changes to |
| * the EFI memory map. Other related structures, e.g. x86 e820ext, need |
| * to factor in this headroom requirement as well. |
| */ |
| #define EFI_MMAP_NR_SLACK_SLOTS 8 |
| |
| typedef struct efi_generic_dev_path efi_device_path_protocol_t; |
| |
| union efi_device_path_to_text_protocol { |
| struct { |
| efi_char16_t *(__efiapi *convert_device_node_to_text)( |
| const efi_device_path_protocol_t *, |
| bool, bool); |
| efi_char16_t *(__efiapi *convert_device_path_to_text)( |
| const efi_device_path_protocol_t *, |
| bool, bool); |
| }; |
| struct { |
| u32 convert_device_node_to_text; |
| u32 convert_device_path_to_text; |
| } mixed_mode; |
| }; |
| |
| typedef union efi_device_path_to_text_protocol efi_device_path_to_text_protocol_t; |
| |
| typedef void *efi_event_t; |
| /* Note that notifications won't work in mixed mode */ |
| typedef void (__efiapi *efi_event_notify_t)(efi_event_t, void *); |
| |
| #define EFI_EVT_TIMER 0x80000000U |
| #define EFI_EVT_RUNTIME 0x40000000U |
| #define EFI_EVT_NOTIFY_WAIT 0x00000100U |
| #define EFI_EVT_NOTIFY_SIGNAL 0x00000200U |
| |
| /** |
| * efi_set_event_at() - add event to events array |
| * |
| * @events: array of UEFI events |
| * @ids: index where to put the event in the array |
| * @event: event to add to the aray |
| * |
| * boottime->wait_for_event() takes an array of events as input. |
| * Provide a helper to set it up correctly for mixed mode. |
| */ |
| static inline |
| void efi_set_event_at(efi_event_t *events, size_t idx, efi_event_t event) |
| { |
| if (efi_is_native()) |
| events[idx] = event; |
| else |
| ((u32 *)events)[idx] = (u32)(unsigned long)event; |
| } |
| |
| #define EFI_TPL_APPLICATION 4 |
| #define EFI_TPL_CALLBACK 8 |
| #define EFI_TPL_NOTIFY 16 |
| #define EFI_TPL_HIGH_LEVEL 31 |
| |
| typedef enum { |
| EfiTimerCancel, |
| EfiTimerPeriodic, |
| EfiTimerRelative |
| } EFI_TIMER_DELAY; |
| |
| /* |
| * EFI Boot Services table |
| */ |
| union efi_boot_services { |
| struct { |
| efi_table_hdr_t hdr; |
| void *raise_tpl; |
| void *restore_tpl; |
| efi_status_t (__efiapi *allocate_pages)(int, int, unsigned long, |
| efi_physical_addr_t *); |
| efi_status_t (__efiapi *free_pages)(efi_physical_addr_t, |
| unsigned long); |
| efi_status_t (__efiapi *get_memory_map)(unsigned long *, void *, |
| unsigned long *, |
| unsigned long *, u32 *); |
| efi_status_t (__efiapi *allocate_pool)(int, unsigned long, |
| void **); |
| efi_status_t (__efiapi *free_pool)(void *); |
| efi_status_t (__efiapi *create_event)(u32, unsigned long, |
| efi_event_notify_t, void *, |
| efi_event_t *); |
| efi_status_t (__efiapi *set_timer)(efi_event_t, |
| EFI_TIMER_DELAY, u64); |
| efi_status_t (__efiapi *wait_for_event)(unsigned long, |
| efi_event_t *, |
| unsigned long *); |
| void *signal_event; |
| efi_status_t (__efiapi *close_event)(efi_event_t); |
| void *check_event; |
| void *install_protocol_interface; |
| void *reinstall_protocol_interface; |
| void *uninstall_protocol_interface; |
| efi_status_t (__efiapi *handle_protocol)(efi_handle_t, |
| efi_guid_t *, void **); |
| void *__reserved; |
| void *register_protocol_notify; |
| efi_status_t (__efiapi *locate_handle)(int, efi_guid_t *, |
| void *, unsigned long *, |
| efi_handle_t *); |
| efi_status_t (__efiapi *locate_device_path)(efi_guid_t *, |
| efi_device_path_protocol_t **, |
| efi_handle_t *); |
| efi_status_t (__efiapi *install_configuration_table)(efi_guid_t *, |
| void *); |
| efi_status_t (__efiapi *load_image)(bool, efi_handle_t, |
| efi_device_path_protocol_t *, |
| void *, unsigned long, |
| efi_handle_t *); |
| efi_status_t (__efiapi *start_image)(efi_handle_t, unsigned long *, |
| efi_char16_t **); |
| efi_status_t __noreturn (__efiapi *exit)(efi_handle_t, |
| efi_status_t, |
| unsigned long, |
| efi_char16_t *); |
| efi_status_t (__efiapi *unload_image)(efi_handle_t); |
| efi_status_t (__efiapi *exit_boot_services)(efi_handle_t, |
| unsigned long); |
| void *get_next_monotonic_count; |
| efi_status_t (__efiapi *stall)(unsigned long); |
| void *set_watchdog_timer; |
| void *connect_controller; |
| efi_status_t (__efiapi *disconnect_controller)(efi_handle_t, |
| efi_handle_t, |
| efi_handle_t); |
| void *open_protocol; |
| void *close_protocol; |
| void *open_protocol_information; |
| void *protocols_per_handle; |
| void *locate_handle_buffer; |
| efi_status_t (__efiapi *locate_protocol)(efi_guid_t *, void *, |
| void **); |
| efi_status_t (__efiapi *install_multiple_protocol_interfaces)(efi_handle_t *, ...); |
| efi_status_t (__efiapi *uninstall_multiple_protocol_interfaces)(efi_handle_t, ...); |
| void *calculate_crc32; |
| void (__efiapi *copy_mem)(void *, const void *, unsigned long); |
| void (__efiapi *set_mem)(void *, unsigned long, unsigned char); |
| void *create_event_ex; |
| }; |
| struct { |
| efi_table_hdr_t hdr; |
| u32 raise_tpl; |
| u32 restore_tpl; |
| u32 allocate_pages; |
| u32 free_pages; |
| u32 get_memory_map; |
| u32 allocate_pool; |
| u32 free_pool; |
| u32 create_event; |
| u32 set_timer; |
| u32 wait_for_event; |
| u32 signal_event; |
| u32 close_event; |
| u32 check_event; |
| u32 install_protocol_interface; |
| u32 reinstall_protocol_interface; |
| u32 uninstall_protocol_interface; |
| u32 handle_protocol; |
| u32 __reserved; |
| u32 register_protocol_notify; |
| u32 locate_handle; |
| u32 locate_device_path; |
| u32 install_configuration_table; |
| u32 load_image; |
| u32 start_image; |
| u32 exit; |
| u32 unload_image; |
| u32 exit_boot_services; |
| u32 get_next_monotonic_count; |
| u32 stall; |
| u32 set_watchdog_timer; |
| u32 connect_controller; |
| u32 disconnect_controller; |
| u32 open_protocol; |
| u32 close_protocol; |
| u32 open_protocol_information; |
| u32 protocols_per_handle; |
| u32 locate_handle_buffer; |
| u32 locate_protocol; |
| u32 install_multiple_protocol_interfaces; |
| u32 uninstall_multiple_protocol_interfaces; |
| u32 calculate_crc32; |
| u32 copy_mem; |
| u32 set_mem; |
| u32 create_event_ex; |
| } mixed_mode; |
| }; |
| |
| typedef enum { |
| EfiGcdMemoryTypeNonExistent, |
| EfiGcdMemoryTypeReserved, |
| EfiGcdMemoryTypeSystemMemory, |
| EfiGcdMemoryTypeMemoryMappedIo, |
| EfiGcdMemoryTypePersistent, |
| EfiGcdMemoryTypeMoreReliable, |
| EfiGcdMemoryTypeMaximum |
| } efi_gcd_memory_type_t; |
| |
| typedef struct { |
| efi_physical_addr_t base_address; |
| u64 length; |
| u64 capabilities; |
| u64 attributes; |
| efi_gcd_memory_type_t gcd_memory_type; |
| void *image_handle; |
| void *device_handle; |
| } efi_gcd_memory_space_desc_t; |
| |
| /* |
| * EFI DXE Services table |
| */ |
| union efi_dxe_services_table { |
| struct { |
| efi_table_hdr_t hdr; |
| void *add_memory_space; |
| void *allocate_memory_space; |
| void *free_memory_space; |
| void *remove_memory_space; |
| efi_status_t (__efiapi *get_memory_space_descriptor)(efi_physical_addr_t, |
| efi_gcd_memory_space_desc_t *); |
| efi_status_t (__efiapi *set_memory_space_attributes)(efi_physical_addr_t, |
| u64, u64); |
| void *get_memory_space_map; |
| void *add_io_space; |
| void *allocate_io_space; |
| void *free_io_space; |
| void *remove_io_space; |
| void *get_io_space_descriptor; |
| void *get_io_space_map; |
| void *dispatch; |
| void *schedule; |
| void *trust; |
| void *process_firmware_volume; |
| void *set_memory_space_capabilities; |
| }; |
| struct { |
| efi_table_hdr_t hdr; |
| u32 add_memory_space; |
| u32 allocate_memory_space; |
| u32 free_memory_space; |
| u32 remove_memory_space; |
| u32 get_memory_space_descriptor; |
| u32 set_memory_space_attributes; |
| u32 get_memory_space_map; |
| u32 add_io_space; |
| u32 allocate_io_space; |
| u32 free_io_space; |
| u32 remove_io_space; |
| u32 get_io_space_descriptor; |
| u32 get_io_space_map; |
| u32 dispatch; |
| u32 schedule; |
| u32 trust; |
| u32 process_firmware_volume; |
| u32 set_memory_space_capabilities; |
| } mixed_mode; |
| }; |
| |
| typedef union efi_uga_draw_protocol efi_uga_draw_protocol_t; |
| |
| union efi_uga_draw_protocol { |
| struct { |
| efi_status_t (__efiapi *get_mode)(efi_uga_draw_protocol_t *, |
| u32*, u32*, u32*, u32*); |
| void *set_mode; |
| void *blt; |
| }; |
| struct { |
| u32 get_mode; |
| u32 set_mode; |
| u32 blt; |
| } mixed_mode; |
| }; |
| |
| typedef struct { |
| u16 scan_code; |
| efi_char16_t unicode_char; |
| } efi_input_key_t; |
| |
| union efi_simple_text_input_protocol { |
| struct { |
| void *reset; |
| efi_status_t (__efiapi *read_keystroke)(efi_simple_text_input_protocol_t *, |
| efi_input_key_t *); |
| efi_event_t wait_for_key; |
| }; |
| struct { |
| u32 reset; |
| u32 read_keystroke; |
| u32 wait_for_key; |
| } mixed_mode; |
| }; |
| |
| efi_status_t efi_wait_for_key(unsigned long usec, efi_input_key_t *key); |
| |
| union efi_simple_text_output_protocol { |
| struct { |
| void *reset; |
| efi_status_t (__efiapi *output_string)(efi_simple_text_output_protocol_t *, |
| efi_char16_t *); |
| void *test_string; |
| }; |
| struct { |
| u32 reset; |
| u32 output_string; |
| u32 test_string; |
| } mixed_mode; |
| }; |
| |
| #define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0 |
| #define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1 |
| #define PIXEL_BIT_MASK 2 |
| #define PIXEL_BLT_ONLY 3 |
| #define PIXEL_FORMAT_MAX 4 |
| |
| typedef struct { |
| u32 red_mask; |
| u32 green_mask; |
| u32 blue_mask; |
| u32 reserved_mask; |
| } efi_pixel_bitmask_t; |
| |
| typedef struct { |
| u32 version; |
| u32 horizontal_resolution; |
| u32 vertical_resolution; |
| int pixel_format; |
| efi_pixel_bitmask_t pixel_information; |
| u32 pixels_per_scan_line; |
| } efi_graphics_output_mode_info_t; |
| |
| typedef union efi_graphics_output_protocol_mode efi_graphics_output_protocol_mode_t; |
| |
| union efi_graphics_output_protocol_mode { |
| struct { |
| u32 max_mode; |
| u32 mode; |
| efi_graphics_output_mode_info_t *info; |
| unsigned long size_of_info; |
| efi_physical_addr_t frame_buffer_base; |
| unsigned long frame_buffer_size; |
| }; |
| struct { |
| u32 max_mode; |
| u32 mode; |
| u32 info; |
| u32 size_of_info; |
| u64 frame_buffer_base; |
| u32 frame_buffer_size; |
| } mixed_mode; |
| }; |
| |
| typedef union efi_graphics_output_protocol efi_graphics_output_protocol_t; |
| |
| union efi_graphics_output_protocol { |
| struct { |
| efi_status_t (__efiapi *query_mode)(efi_graphics_output_protocol_t *, |
| u32, unsigned long *, |
| efi_graphics_output_mode_info_t **); |
| efi_status_t (__efiapi *set_mode) (efi_graphics_output_protocol_t *, u32); |
| void *blt; |
| efi_graphics_output_protocol_mode_t *mode; |
| }; |
| struct { |
| u32 query_mode; |
| u32 set_mode; |
| u32 blt; |
| u32 mode; |
| } mixed_mode; |
| }; |
| |
| typedef union { |
| struct { |
| u32 revision; |
| efi_handle_t parent_handle; |
| efi_system_table_t *system_table; |
| efi_handle_t device_handle; |
| void *file_path; |
| void *reserved; |
| u32 load_options_size; |
| void *load_options; |
| void *image_base; |
| __aligned_u64 image_size; |
| unsigned int image_code_type; |
| unsigned int image_data_type; |
| efi_status_t (__efiapi *unload)(efi_handle_t image_handle); |
| }; |
| struct { |
| u32 revision; |
| u32 parent_handle; |
| u32 system_table; |
| u32 device_handle; |
| u32 file_path; |
| u32 reserved; |
| u32 load_options_size; |
| u32 load_options; |
| u32 image_base; |
| __aligned_u64 image_size; |
| u32 image_code_type; |
| u32 image_data_type; |
| u32 unload; |
| } mixed_mode; |
| } efi_loaded_image_t; |
| |
| typedef struct { |
| u64 size; |
| u64 file_size; |
| u64 phys_size; |
| efi_time_t create_time; |
| efi_time_t last_access_time; |
| efi_time_t modification_time; |
| __aligned_u64 attribute; |
| efi_char16_t filename[]; |
| } efi_file_info_t; |
| |
| typedef struct efi_file_protocol efi_file_protocol_t; |
| |
| struct efi_file_protocol { |
| u64 revision; |
| efi_status_t (__efiapi *open) (efi_file_protocol_t *, |
| efi_file_protocol_t **, |
| efi_char16_t *, u64, u64); |
| efi_status_t (__efiapi *close) (efi_file_protocol_t *); |
| efi_status_t (__efiapi *delete) (efi_file_protocol_t *); |
| efi_status_t (__efiapi *read) (efi_file_protocol_t *, |
| unsigned long *, void *); |
| efi_status_t (__efiapi *write) (efi_file_protocol_t *, |
| unsigned long, void *); |
| efi_status_t (__efiapi *get_position)(efi_file_protocol_t *, u64 *); |
| efi_status_t (__efiapi *set_position)(efi_file_protocol_t *, u64); |
| efi_status_t (__efiapi *get_info) (efi_file_protocol_t *, |
| efi_guid_t *, unsigned long *, |
| void *); |
| efi_status_t (__efiapi *set_info) (efi_file_protocol_t *, |
| efi_guid_t *, unsigned long, |
| void *); |
| efi_status_t (__efiapi *flush) (efi_file_protocol_t *); |
| }; |
| |
| typedef struct efi_simple_file_system_protocol efi_simple_file_system_protocol_t; |
| |
| struct efi_simple_file_system_protocol { |
| u64 revision; |
| int (__efiapi *open_volume)(efi_simple_file_system_protocol_t *, |
| efi_file_protocol_t **); |
| }; |
| |
| #define EFI_FILE_MODE_READ 0x0000000000000001 |
| #define EFI_FILE_MODE_WRITE 0x0000000000000002 |
| #define EFI_FILE_MODE_CREATE 0x8000000000000000 |
| |
| typedef enum { |
| EfiPciIoWidthUint8, |
| EfiPciIoWidthUint16, |
| EfiPciIoWidthUint32, |
| EfiPciIoWidthUint64, |
| EfiPciIoWidthFifoUint8, |
| EfiPciIoWidthFifoUint16, |
| EfiPciIoWidthFifoUint32, |
| EfiPciIoWidthFifoUint64, |
| EfiPciIoWidthFillUint8, |
| EfiPciIoWidthFillUint16, |
| EfiPciIoWidthFillUint32, |
| EfiPciIoWidthFillUint64, |
| EfiPciIoWidthMaximum |
| } EFI_PCI_IO_PROTOCOL_WIDTH; |
| |
| typedef enum { |
| EfiPciIoAttributeOperationGet, |
| EfiPciIoAttributeOperationSet, |
| EfiPciIoAttributeOperationEnable, |
| EfiPciIoAttributeOperationDisable, |
| EfiPciIoAttributeOperationSupported, |
| EfiPciIoAttributeOperationMaximum |
| } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION; |
| |
| typedef struct { |
| u32 read; |
| u32 write; |
| } efi_pci_io_protocol_access_32_t; |
| |
| typedef union efi_pci_io_protocol efi_pci_io_protocol_t; |
| |
| typedef |
| efi_status_t (__efiapi *efi_pci_io_protocol_cfg_t)(efi_pci_io_protocol_t *, |
| EFI_PCI_IO_PROTOCOL_WIDTH, |
| u32 offset, |
| unsigned long count, |
| void *buffer); |
| |
| typedef struct { |
| void *read; |
| void *write; |
| } efi_pci_io_protocol_access_t; |
| |
| typedef struct { |
| efi_pci_io_protocol_cfg_t read; |
| efi_pci_io_protocol_cfg_t write; |
| } efi_pci_io_protocol_config_access_t; |
| |
| union efi_pci_io_protocol { |
| struct { |
| void *poll_mem; |
| void *poll_io; |
| efi_pci_io_protocol_access_t mem; |
| efi_pci_io_protocol_access_t io; |
| efi_pci_io_protocol_config_access_t pci; |
| void *copy_mem; |
| void *map; |
| void *unmap; |
| void *allocate_buffer; |
| void *free_buffer; |
| void *flush; |
| efi_status_t (__efiapi *get_location)(efi_pci_io_protocol_t *, |
| unsigned long *segment_nr, |
| unsigned long *bus_nr, |
| unsigned long *device_nr, |
| unsigned long *func_nr); |
| void *attributes; |
| void *get_bar_attributes; |
| void *set_bar_attributes; |
| uint64_t romsize; |
| void *romimage; |
| }; |
| struct { |
| u32 poll_mem; |
| u32 poll_io; |
| efi_pci_io_protocol_access_32_t mem; |
| efi_pci_io_protocol_access_32_t io; |
| efi_pci_io_protocol_access_32_t pci; |
| u32 copy_mem; |
| u32 map; |
| u32 unmap; |
| u32 allocate_buffer; |
| u32 free_buffer; |
| u32 flush; |
| u32 get_location; |
| u32 attributes; |
| u32 get_bar_attributes; |
| u32 set_bar_attributes; |
| u64 romsize; |
| u32 romimage; |
| } mixed_mode; |
| }; |
| |
| #define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001 |
| #define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002 |
| #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004 |
| #define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008 |
| #define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010 |
| #define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020 |
| #define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040 |
| #define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080 |
| #define EFI_PCI_IO_ATTRIBUTE_IO 0x0100 |
| #define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200 |
| #define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400 |
| #define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800 |
| #define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 |
| #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000 |
| #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000 |
| #define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000 |
| #define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000 |
| #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000 |
| #define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000 |
| |
| struct efi_dev_path; |
| |
| typedef union apple_properties_protocol apple_properties_protocol_t; |
| |
| union apple_properties_protocol { |
| struct { |
| unsigned long version; |
| efi_status_t (__efiapi *get)(apple_properties_protocol_t *, |
| struct efi_dev_path *, |
| efi_char16_t *, void *, u32 *); |
| efi_status_t (__efiapi *set)(apple_properties_protocol_t *, |
| struct efi_dev_path *, |
| efi_char16_t *, void *, u32); |
| efi_status_t (__efiapi *del)(apple_properties_protocol_t *, |
| struct efi_dev_path *, |
| efi_char16_t *); |
| efi_status_t (__efiapi *get_all)(apple_properties_protocol_t *, |
| void *buffer, u32 *); |
| }; |
| struct { |
| u32 version; |
| u32 get; |
| u32 set; |
| u32 del; |
| u32 get_all; |
| } mixed_mode; |
| }; |
| |
| typedef u32 efi_tcg2_event_log_format; |
| |
| #define INITRD_EVENT_TAG_ID 0x8F3B22ECU |
| #define LOAD_OPTIONS_EVENT_TAG_ID 0x8F3B22EDU |
| #define EV_EVENT_TAG 0x00000006U |
| #define EFI_TCG2_EVENT_HEADER_VERSION 0x1 |
| |
| struct efi_tcg2_event { |
| u32 event_size; |
| struct { |
| u32 header_size; |
| u16 header_version; |
| u32 pcr_index; |
| u32 event_type; |
| } __packed event_header; |
| /* u8[] event follows here */ |
| } __packed; |
| |
| struct efi_tcg2_tagged_event { |
| u32 tagged_event_id; |
| u32 tagged_event_data_size; |
| /* u8 tagged event data follows here */ |
| } __packed; |
| |
| typedef struct efi_tcg2_event efi_tcg2_event_t; |
| typedef struct efi_tcg2_tagged_event efi_tcg2_tagged_event_t; |
| typedef union efi_tcg2_protocol efi_tcg2_protocol_t; |
| |
| union efi_tcg2_protocol { |
| struct { |
| void *get_capability; |
| efi_status_t (__efiapi *get_event_log)(efi_tcg2_protocol_t *, |
| efi_tcg2_event_log_format, |
| efi_physical_addr_t *, |
| efi_physical_addr_t *, |
| efi_bool_t *); |
| efi_status_t (__efiapi *hash_log_extend_event)(efi_tcg2_protocol_t *, |
| u64, |
| efi_physical_addr_t, |
| u64, |
| const efi_tcg2_event_t *); |
| void *submit_command; |
| void *get_active_pcr_banks; |
| void *set_active_pcr_banks; |
| void *get_result_of_set_active_pcr_banks; |
| }; |
| struct { |
| u32 get_capability; |
| u32 get_event_log; |
| u32 hash_log_extend_event; |
| u32 submit_command; |
| u32 get_active_pcr_banks; |
| u32 set_active_pcr_banks; |
| u32 get_result_of_set_active_pcr_banks; |
| } mixed_mode; |
| }; |
| |
| struct riscv_efi_boot_protocol { |
| u64 revision; |
| |
| efi_status_t (__efiapi *get_boot_hartid)(struct riscv_efi_boot_protocol *, |
| unsigned long *boot_hartid); |
| }; |
| |
| typedef union efi_load_file_protocol efi_load_file_protocol_t; |
| typedef union efi_load_file_protocol efi_load_file2_protocol_t; |
| |
| union efi_load_file_protocol { |
| struct { |
| efi_status_t (__efiapi *load_file)(efi_load_file_protocol_t *, |
| efi_device_path_protocol_t *, |
| bool, unsigned long *, void *); |
| }; |
| struct { |
| u32 load_file; |
| } mixed_mode; |
| }; |
| |
| typedef struct { |
| u32 attributes; |
| u16 file_path_list_length; |
| u8 variable_data[]; |
| // efi_char16_t description[]; |
| // efi_device_path_protocol_t file_path_list[]; |
| // u8 optional_data[]; |
| } __packed efi_load_option_t; |
| |
| #define EFI_LOAD_OPTION_ACTIVE 0x0001U |
| #define EFI_LOAD_OPTION_FORCE_RECONNECT 0x0002U |
| #define EFI_LOAD_OPTION_HIDDEN 0x0008U |
| #define EFI_LOAD_OPTION_CATEGORY 0x1f00U |
| #define EFI_LOAD_OPTION_CATEGORY_BOOT 0x0000U |
| #define EFI_LOAD_OPTION_CATEGORY_APP 0x0100U |
| |
| #define EFI_LOAD_OPTION_BOOT_MASK \ |
| (EFI_LOAD_OPTION_ACTIVE|EFI_LOAD_OPTION_HIDDEN|EFI_LOAD_OPTION_CATEGORY) |
| #define EFI_LOAD_OPTION_MASK (EFI_LOAD_OPTION_FORCE_RECONNECT|EFI_LOAD_OPTION_BOOT_MASK) |
| |
| typedef struct { |
| u32 attributes; |
| u16 file_path_list_length; |
| const efi_char16_t *description; |
| const efi_device_path_protocol_t *file_path_list; |
| u32 optional_data_size; |
| const void *optional_data; |
| } efi_load_option_unpacked_t; |
| |
| void efi_pci_disable_bridge_busmaster(void); |
| |
| typedef efi_status_t (*efi_exit_boot_map_processing)( |
| struct efi_boot_memmap *map, |
| void *priv); |
| |
| efi_status_t efi_exit_boot_services(void *handle, void *priv, |
| efi_exit_boot_map_processing priv_func); |
| |
| efi_status_t efi_boot_kernel(void *handle, efi_loaded_image_t *image, |
| unsigned long kernel_addr, char *cmdline_ptr); |
| |
| void *get_fdt(unsigned long *fdt_size); |
| |
| efi_status_t efi_alloc_virtmap(efi_memory_desc_t **virtmap, |
| unsigned long *desc_size, u32 *desc_ver); |
| void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size, |
| unsigned long desc_size, efi_memory_desc_t *runtime_map, |
| int *count); |
| |
| efi_status_t efi_get_random_bytes(unsigned long size, u8 *out); |
| |
| efi_status_t efi_random_alloc(unsigned long size, unsigned long align, |
| unsigned long *addr, unsigned long random_seed); |
| |
| efi_status_t check_platform_features(void); |
| |
| void *get_efi_config_table(efi_guid_t guid); |
| |
| /* NOTE: These functions do not print a trailing newline after the string */ |
| void efi_char16_puts(efi_char16_t *); |
| void efi_puts(const char *str); |
| |
| __printf(1, 2) int efi_printk(char const *fmt, ...); |
| |
| void efi_free(unsigned long size, unsigned long addr); |
| |
| void efi_apply_loadoptions_quirk(const void **load_options, u32 *load_options_size); |
| |
| char *efi_convert_cmdline(efi_loaded_image_t *image, int *cmd_line_len); |
| |
| efi_status_t efi_get_memory_map(struct efi_boot_memmap **map, |
| bool install_cfg_tbl); |
| |
| efi_status_t efi_allocate_pages(unsigned long size, unsigned long *addr, |
| unsigned long max); |
| |
| efi_status_t efi_allocate_pages_aligned(unsigned long size, unsigned long *addr, |
| unsigned long max, unsigned long align); |
| |
| efi_status_t efi_low_alloc_above(unsigned long size, unsigned long align, |
| unsigned long *addr, unsigned long min); |
| |
| efi_status_t efi_relocate_kernel(unsigned long *image_addr, |
| unsigned long image_size, |
| unsigned long alloc_size, |
| unsigned long preferred_addr, |
| unsigned long alignment, |
| unsigned long min_addr); |
| |
| efi_status_t efi_parse_options(char const *cmdline); |
| |
| void efi_parse_option_graphics(char *option); |
| |
| efi_status_t efi_setup_gop(struct screen_info *si, efi_guid_t *proto, |
| unsigned long size); |
| |
| efi_status_t handle_cmdline_files(efi_loaded_image_t *image, |
| const efi_char16_t *optstr, |
| int optstr_size, |
| unsigned long soft_limit, |
| unsigned long hard_limit, |
| unsigned long *load_addr, |
| unsigned long *load_size); |
| |
| |
| static inline efi_status_t efi_load_dtb(efi_loaded_image_t *image, |
| unsigned long *load_addr, |
| unsigned long *load_size) |
| { |
| return handle_cmdline_files(image, L"dtb=", sizeof(L"dtb=") - 2, |
| ULONG_MAX, ULONG_MAX, load_addr, load_size); |
| } |
| |
| efi_status_t efi_load_initrd(efi_loaded_image_t *image, |
| unsigned long soft_limit, |
| unsigned long hard_limit, |
| const struct linux_efi_initrd **out); |
| /* |
| * This function handles the architcture specific differences between arm and |
| * arm64 regarding where the kernel image must be loaded and any memory that |
| * must be reserved. On failure it is required to free all |
| * all allocations it has made. |
| */ |
| efi_status_t handle_kernel_image(unsigned long *image_addr, |
| unsigned long *image_size, |
| unsigned long *reserve_addr, |
| unsigned long *reserve_size, |
| efi_loaded_image_t *image, |
| efi_handle_t image_handle); |
| |
| asmlinkage void __noreturn efi_enter_kernel(unsigned long entrypoint, |
| unsigned long fdt_addr, |
| unsigned long fdt_size); |
| |
| void efi_handle_post_ebs_state(void); |
| |
| enum efi_secureboot_mode efi_get_secureboot(void); |
| |
| #ifdef CONFIG_RESET_ATTACK_MITIGATION |
| void efi_enable_reset_attack_mitigation(void); |
| #else |
| static inline void |
| efi_enable_reset_attack_mitigation(void) { } |
| #endif |
| |
| void efi_retrieve_tpm2_eventlog(void); |
| |
| #endif |
