| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* Relevant definitions from linux/efi.h. */ |
| |
| #ifndef __LINUX_UEFI_H |
| #define __LINUX_UEFI_H |
| |
| #include "libcflat.h" |
| |
| #ifndef __packed |
| # define __packed __attribute__((__packed__)) |
| #endif |
| |
| #define BITS_PER_LONG 64 |
| |
| #define EFI_SUCCESS 0 |
| #define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_UNSUPPORTED ( 3 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_BUFFER_TOO_SMALL ( 5 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_NOT_READY ( 6 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_DEVICE_ERROR ( 7 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_WRITE_PROTECTED ( 8 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_OUT_OF_RESOURCES ( 9 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_TIMEOUT (18 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_ABORTED (21 | (1UL << (BITS_PER_LONG-1))) |
| #define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1))) |
| |
| typedef unsigned long efi_status_t; |
| typedef u8 efi_bool_t; |
| typedef u16 efi_char16_t; /* UNICODE character */ |
| typedef u64 efi_physical_addr_t; |
| typedef void *efi_handle_t; |
| |
| #define __efiapi __attribute__((ms_abi)) |
| |
| /* |
| * The UEFI spec and EDK2 reference implementation both define EFI_GUID as |
| * struct { u32 a; u16; b; u16 c; u8 d[8]; }; and so the implied alignment |
| * is 32 bits not 8 bits like our guid_t. In some cases (i.e., on 32-bit ARM), |
| * this means that firmware services invoked by the kernel may assume that |
| * efi_guid_t* arguments are 32-bit aligned, and use memory accessors that |
| * do not tolerate misalignment. So let's set the minimum alignment to 32 bits. |
| * |
| * Note that the UEFI spec as well as some comments in the EDK2 code base |
| * suggest that EFI_GUID should be 64-bit aligned, but this appears to be |
| * a mistake, given that no code seems to exist that actually enforces that |
| * or relies on it. |
| */ |
| typedef struct { |
| u8 b[16]; |
| } guid_t __attribute__((aligned(__alignof__(u32)))); |
| typedef guid_t efi_guid_t; |
| |
| #define EFI_GUID(a, b, c, d...) (efi_guid_t){ { \ |
| (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \ |
| (b) & 0xff, ((b) >> 8) & 0xff, \ |
| (c) & 0xff, ((c) >> 8) & 0xff, d } } |
| |
| #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) |
| |
| typedef struct { |
| efi_guid_t guid; |
| void *table; |
| } efi_config_table_t; |
| |
| /* |
| * Generic EFI table header |
| */ |
| typedef struct { |
| u64 signature; |
| u32 revision; |
| u32 headersize; |
| u32 crc32; |
| u32 reserved; |
| } efi_table_hdr_t; |
| |
| /* |
| * Memory map descriptor: |
| */ |
| |
| /* Memory types: */ |
| #define EFI_RESERVED_TYPE 0 |
| #define EFI_LOADER_CODE 1 |
| #define EFI_LOADER_DATA 2 |
| #define EFI_BOOT_SERVICES_CODE 3 |
| #define EFI_BOOT_SERVICES_DATA 4 |
| #define EFI_RUNTIME_SERVICES_CODE 5 |
| #define EFI_RUNTIME_SERVICES_DATA 6 |
| #define EFI_CONVENTIONAL_MEMORY 7 |
| #define EFI_UNUSABLE_MEMORY 8 |
| #define EFI_ACPI_RECLAIM_MEMORY 9 |
| #define EFI_ACPI_MEMORY_NVS 10 |
| #define EFI_MEMORY_MAPPED_IO 11 |
| #define EFI_MEMORY_MAPPED_IO_PORT_SPACE 12 |
| #define EFI_PAL_CODE 13 |
| #define EFI_PERSISTENT_MEMORY 14 |
| #define EFI_MAX_MEMORY_TYPE 15 |
| |
| /* Attribute values: */ |
| #define EFI_MEMORY_UC ((u64)0x0000000000000001ULL) /* uncached */ |
| #define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */ |
| #define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */ |
| #define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */ |
| #define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */ |
| #define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */ |
| #define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */ |
| #define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */ |
| #define EFI_MEMORY_NV ((u64)0x0000000000008000ULL) /* non-volatile */ |
| #define EFI_MEMORY_MORE_RELIABLE \ |
| ((u64)0x0000000000010000ULL) /* higher reliability */ |
| #define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */ |
| #define EFI_MEMORY_SP ((u64)0x0000000000040000ULL) /* soft reserved */ |
| #define EFI_MEMORY_CPU_CRYPTO ((u64)0x0000000000080000ULL) /* supports encryption */ |
| #define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */ |
| #define EFI_MEMORY_DESCRIPTOR_VERSION 1 |
| |
| #define EFI_PAGE_SHIFT 12 |
| #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) |
| #define EFI_PAGES_MAX (U64_MAX >> EFI_PAGE_SHIFT) |
| |
| typedef struct { |
| u32 type; |
| u32 pad; |
| u64 phys_addr; |
| u64 virt_addr; |
| u64 num_pages; |
| u64 attribute; |
| } efi_memory_desc_t; |
| |
| typedef struct { |
| efi_guid_t guid; |
| u32 headersize; |
| u32 flags; |
| u32 imagesize; |
| } efi_capsule_header_t; |
| |
| /* |
| * EFI capsule flags |
| */ |
| #define EFI_CAPSULE_PERSIST_ACROSS_RESET 0x00010000 |
| #define EFI_CAPSULE_POPULATE_SYSTEM_TABLE 0x00020000 |
| #define EFI_CAPSULE_INITIATE_RESET 0x00040000 |
| |
| struct capsule_info { |
| efi_capsule_header_t header; |
| efi_capsule_header_t *capsule; |
| int reset_type; |
| long index; |
| size_t count; |
| size_t total_size; |
| struct page **pages; |
| phys_addr_t *phys; |
| size_t page_bytes_remain; |
| }; |
| |
| int __efi_capsule_setup_info(struct capsule_info *cap_info); |
| |
| /* |
| * Types and defines for Time Services |
| */ |
| #define EFI_TIME_ADJUST_DAYLIGHT 0x1 |
| #define EFI_TIME_IN_DAYLIGHT 0x2 |
| #define EFI_UNSPECIFIED_TIMEZONE 0x07ff |
| |
| typedef struct { |
| u16 year; |
| u8 month; |
| u8 day; |
| u8 hour; |
| u8 minute; |
| u8 second; |
| u8 pad1; |
| u32 nanosecond; |
| s16 timezone; |
| u8 daylight; |
| u8 pad2; |
| } efi_time_t; |
| |
| typedef struct { |
| u32 resolution; |
| u32 accuracy; |
| u8 sets_to_zero; |
| } efi_time_cap_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 *); |
| |
| typedef enum { |
| EfiTimerCancel, |
| EfiTimerPeriodic, |
| EfiTimerRelative |
| } EFI_TIMER_DELAY; |
| |
| /* |
| * EFI Device Path information |
| */ |
| #define EFI_DEV_HW 0x01 |
| #define EFI_DEV_PCI 1 |
| #define EFI_DEV_PCCARD 2 |
| #define EFI_DEV_MEM_MAPPED 3 |
| #define EFI_DEV_VENDOR 4 |
| #define EFI_DEV_CONTROLLER 5 |
| #define EFI_DEV_ACPI 0x02 |
| #define EFI_DEV_BASIC_ACPI 1 |
| #define EFI_DEV_EXPANDED_ACPI 2 |
| #define EFI_DEV_MSG 0x03 |
| #define EFI_DEV_MSG_ATAPI 1 |
| #define EFI_DEV_MSG_SCSI 2 |
| #define EFI_DEV_MSG_FC 3 |
| #define EFI_DEV_MSG_1394 4 |
| #define EFI_DEV_MSG_USB 5 |
| #define EFI_DEV_MSG_USB_CLASS 15 |
| #define EFI_DEV_MSG_I20 6 |
| #define EFI_DEV_MSG_MAC 11 |
| #define EFI_DEV_MSG_IPV4 12 |
| #define EFI_DEV_MSG_IPV6 13 |
| #define EFI_DEV_MSG_INFINIBAND 9 |
| #define EFI_DEV_MSG_UART 14 |
| #define EFI_DEV_MSG_VENDOR 10 |
| #define EFI_DEV_MEDIA 0x04 |
| #define EFI_DEV_MEDIA_HARD_DRIVE 1 |
| #define EFI_DEV_MEDIA_CDROM 2 |
| #define EFI_DEV_MEDIA_VENDOR 3 |
| #define EFI_DEV_MEDIA_FILE 4 |
| #define EFI_DEV_MEDIA_PROTOCOL 5 |
| #define EFI_DEV_BIOS_BOOT 0x05 |
| #define EFI_DEV_END_PATH 0x7F |
| #define EFI_DEV_END_PATH2 0xFF |
| #define EFI_DEV_END_INSTANCE 0x01 |
| #define EFI_DEV_END_ENTIRE 0xFF |
| |
| struct efi_generic_dev_path { |
| u8 type; |
| u8 sub_type; |
| u16 length; |
| } __packed; |
| |
| typedef struct efi_generic_dev_path efi_device_path_protocol_t; |
| |
| /* |
| * EFI Boot Services table |
| */ |
| typedef 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 *); |
| void *load_image; |
| void *start_image; |
| efi_status_t(__efiapi *exit)(efi_handle_t, |
| efi_status_t, |
| unsigned long, |
| efi_char16_t *); |
| void *unload_image; |
| 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 **); |
| void *install_multiple_protocol_interfaces; |
| void *uninstall_multiple_protocol_interfaces; |
| void *calculate_crc32; |
| void *copy_mem; |
| void *set_mem; |
| void *create_event_ex; |
| } efi_boot_services_t; |
| |
| /* |
| * Types and defines for EFI ResetSystem |
| */ |
| #define EFI_RESET_COLD 0 |
| #define EFI_RESET_WARM 1 |
| #define EFI_RESET_SHUTDOWN 2 |
| |
| /* |
| * EFI Runtime Services table |
| */ |
| #define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL) |
| #define EFI_RUNTIME_SERVICES_REVISION 0x00010000 |
| |
| typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); |
| typedef efi_status_t efi_set_time_t (efi_time_t *tm); |
| typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending, |
| efi_time_t *tm); |
| typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm); |
| typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, |
| unsigned long *data_size, void *data); |
| typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name, |
| efi_guid_t *vendor); |
| typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, |
| u32 attr, unsigned long data_size, |
| void *data); |
| typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count); |
| typedef void efi_reset_system_t (int reset_type, efi_status_t status, |
| unsigned long data_size, efi_char16_t *data); |
| typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size, |
| unsigned long descriptor_size, |
| u32 descriptor_version, |
| efi_memory_desc_t *virtual_map); |
| typedef efi_status_t efi_query_variable_info_t(u32 attr, |
| u64 *storage_space, |
| u64 *remaining_space, |
| u64 *max_variable_size); |
| typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules, |
| unsigned long count, |
| unsigned long sg_list); |
| typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, |
| unsigned long count, |
| u64 *max_size, |
| int *reset_type); |
| typedef efi_status_t efi_query_variable_store_t(u32 attributes, |
| unsigned long size, |
| bool nonblocking); |
| |
| typedef struct { |
| efi_table_hdr_t hdr; |
| efi_get_time_t __efiapi *get_time; |
| efi_set_time_t __efiapi *set_time; |
| efi_get_wakeup_time_t __efiapi *get_wakeup_time; |
| efi_set_wakeup_time_t __efiapi *set_wakeup_time; |
| efi_set_virtual_address_map_t __efiapi *set_virtual_address_map; |
| void *convert_pointer; |
| efi_get_variable_t __efiapi *get_variable; |
| efi_get_next_variable_t __efiapi *get_next_variable; |
| efi_set_variable_t __efiapi *set_variable; |
| efi_get_next_high_mono_count_t __efiapi *get_next_high_mono_count; |
| efi_reset_system_t __efiapi *reset_system; |
| efi_update_capsule_t __efiapi *update_capsule; |
| efi_query_capsule_caps_t __efiapi *query_capsule_caps; |
| efi_query_variable_info_t __efiapi *query_variable_info; |
| } efi_runtime_services_t; |
| |
| #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL) |
| |
| #define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30)) |
| #define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20)) |
| #define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10)) |
| #define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00)) |
| #define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10)) |
| #define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02)) |
| |
| typedef union efi_simple_text_input_protocol efi_simple_text_input_protocol_t; |
| typedef union efi_simple_text_output_protocol efi_simple_text_output_protocol_t; |
| |
| typedef struct { |
| efi_table_hdr_t hdr; |
| unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */ |
| u32 fw_revision; |
| unsigned long con_in_handle; |
| efi_simple_text_input_protocol_t *con_in; |
| unsigned long con_out_handle; |
| efi_simple_text_output_protocol_t *con_out; |
| unsigned long stderr_handle; |
| unsigned long stderr; |
| efi_runtime_services_t *runtime; |
| efi_boot_services_t *boottime; |
| unsigned long nr_tables; |
| unsigned long tables; |
| } efi_system_table_t; |
| |
| struct efi_boot_memmap { |
| efi_memory_desc_t **map; |
| unsigned long *map_size; |
| unsigned long *desc_size; |
| u32 *desc_ver; |
| unsigned long *key_ptr; |
| unsigned long *buff_size; |
| }; |
| |
| #define efi_bs_call(func, ...) efi_system_table->boottime->func(__VA_ARGS__) |
| #define efi_rs_call(func, ...) efi_system_table->runtime->func(__VA_ARGS__) |
| |
| #endif /* __LINUX_UEFI_H */ |
