Alexander Graf | cb149c6 | 2016-03-04 01:09:58 +0100 | [diff] [blame] | 1 | /* |
| 2 | * EFI application loader |
| 3 | * |
| 4 | * Copyright (c) 2016 Alexander Graf |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0+ |
| 7 | */ |
| 8 | |
Heinrich Schuchardt | cd9e18d | 2017-10-18 18:13:07 +0200 | [diff] [blame] | 9 | #ifndef _EFI_LOADER_H |
| 10 | #define _EFI_LOADER_H 1 |
| 11 | |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 12 | #include <common.h> |
Alexander Graf | cb149c6 | 2016-03-04 01:09:58 +0100 | [diff] [blame] | 13 | #include <part_efi.h> |
| 14 | #include <efi_api.h> |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 15 | |
| 16 | /* No need for efi loader support in SPL */ |
| 17 | #if defined(CONFIG_EFI_LOADER) && !defined(CONFIG_SPL_BUILD) |
| 18 | |
Alexander Graf | cb149c6 | 2016-03-04 01:09:58 +0100 | [diff] [blame] | 19 | #include <linux/list.h> |
| 20 | |
Rob Clark | c160d2f | 2017-07-27 08:04:18 -0400 | [diff] [blame] | 21 | int __efi_entry_check(void); |
| 22 | int __efi_exit_check(void); |
Heinrich Schuchardt | ae0bd3a | 2017-08-18 17:45:16 +0200 | [diff] [blame] | 23 | const char *__efi_nesting(void); |
Rob Clark | af65db8 | 2017-07-27 08:04:19 -0400 | [diff] [blame] | 24 | const char *__efi_nesting_inc(void); |
| 25 | const char *__efi_nesting_dec(void); |
Rob Clark | c160d2f | 2017-07-27 08:04:18 -0400 | [diff] [blame] | 26 | |
Rob Clark | a095aad | 2017-07-27 08:04:17 -0400 | [diff] [blame] | 27 | /* |
| 28 | * Enter the u-boot world from UEFI: |
| 29 | */ |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 30 | #define EFI_ENTRY(format, ...) do { \ |
Rob Clark | c160d2f | 2017-07-27 08:04:18 -0400 | [diff] [blame] | 31 | assert(__efi_entry_check()); \ |
Rob Clark | af65db8 | 2017-07-27 08:04:19 -0400 | [diff] [blame] | 32 | debug("%sEFI: Entry %s(" format ")\n", __efi_nesting_inc(), \ |
| 33 | __func__, ##__VA_ARGS__); \ |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 34 | } while(0) |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 35 | |
Rob Clark | a095aad | 2017-07-27 08:04:17 -0400 | [diff] [blame] | 36 | /* |
| 37 | * Exit the u-boot world back to UEFI: |
| 38 | */ |
Rob Clark | 804b1d7 | 2017-07-24 10:31:52 -0400 | [diff] [blame] | 39 | #define EFI_EXIT(ret) ({ \ |
xypron.glpk@gmx.de | c81883d | 2017-08-17 18:57:36 +0200 | [diff] [blame] | 40 | typeof(ret) _r = ret; \ |
Rob Clark | af65db8 | 2017-07-27 08:04:19 -0400 | [diff] [blame] | 41 | debug("%sEFI: Exit: %s: %u\n", __efi_nesting_dec(), \ |
xypron.glpk@gmx.de | c81883d | 2017-08-17 18:57:36 +0200 | [diff] [blame] | 42 | __func__, (u32)((uintptr_t) _r & ~EFI_ERROR_MASK)); \ |
Rob Clark | c160d2f | 2017-07-27 08:04:18 -0400 | [diff] [blame] | 43 | assert(__efi_exit_check()); \ |
| 44 | _r; \ |
Rob Clark | 804b1d7 | 2017-07-24 10:31:52 -0400 | [diff] [blame] | 45 | }) |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 46 | |
Rob Clark | a095aad | 2017-07-27 08:04:17 -0400 | [diff] [blame] | 47 | /* |
Heinrich Schuchardt | ea630ce | 2017-09-15 10:06:10 +0200 | [diff] [blame] | 48 | * Call non-void UEFI function from u-boot and retrieve return value: |
Rob Clark | a095aad | 2017-07-27 08:04:17 -0400 | [diff] [blame] | 49 | */ |
Heinrich Schuchardt | ea630ce | 2017-09-15 10:06:10 +0200 | [diff] [blame] | 50 | #define EFI_CALL(exp) ({ \ |
| 51 | debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \ |
| 52 | assert(__efi_exit_check()); \ |
| 53 | typeof(exp) _r = exp; \ |
| 54 | assert(__efi_entry_check()); \ |
| 55 | debug("%sEFI: %lu returned by %s\n", __efi_nesting_dec(), \ |
| 56 | (unsigned long)((uintptr_t)_r & ~EFI_ERROR_MASK), #exp); \ |
| 57 | _r; \ |
| 58 | }) |
| 59 | |
| 60 | /* |
| 61 | * Call void UEFI function from u-boot: |
| 62 | */ |
| 63 | #define EFI_CALL_VOID(exp) do { \ |
Rob Clark | af65db8 | 2017-07-27 08:04:19 -0400 | [diff] [blame] | 64 | debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \ |
Rob Clark | c160d2f | 2017-07-27 08:04:18 -0400 | [diff] [blame] | 65 | assert(__efi_exit_check()); \ |
Rob Clark | a095aad | 2017-07-27 08:04:17 -0400 | [diff] [blame] | 66 | exp; \ |
Rob Clark | c160d2f | 2017-07-27 08:04:18 -0400 | [diff] [blame] | 67 | assert(__efi_entry_check()); \ |
Rob Clark | af65db8 | 2017-07-27 08:04:19 -0400 | [diff] [blame] | 68 | debug("%sEFI: Return From: %s\n", __efi_nesting_dec(), #exp); \ |
Rob Clark | a095aad | 2017-07-27 08:04:17 -0400 | [diff] [blame] | 69 | } while(0) |
| 70 | |
Heinrich Schuchardt | ae0bd3a | 2017-08-18 17:45:16 +0200 | [diff] [blame] | 71 | /* |
| 72 | * Write GUID |
| 73 | */ |
| 74 | #define EFI_PRINT_GUID(txt, guid) ({ \ |
| 75 | debug("%sEFI: %s %pUl\n", __efi_nesting(), txt, guid); \ |
| 76 | }) |
| 77 | |
Alexander Graf | 50149ea | 2016-03-04 01:10:01 +0100 | [diff] [blame] | 78 | extern struct efi_runtime_services efi_runtime_services; |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 79 | extern struct efi_system_table systab; |
| 80 | |
Alexander Graf | c1311ad | 2016-03-04 01:10:00 +0100 | [diff] [blame] | 81 | extern const struct efi_simple_text_output_protocol efi_con_out; |
xypron.glpk@gmx.de | 91be9a7 | 2017-07-18 20:17:22 +0200 | [diff] [blame] | 82 | extern struct efi_simple_input_interface efi_con_in; |
Alexander Graf | c1311ad | 2016-03-04 01:10:00 +0100 | [diff] [blame] | 83 | extern const struct efi_console_control_protocol efi_console_control; |
xypron.glpk@gmx.de | cc5b708 | 2017-07-11 22:06:25 +0200 | [diff] [blame] | 84 | extern const struct efi_device_path_to_text_protocol efi_device_path_to_text; |
Alexander Graf | c1311ad | 2016-03-04 01:10:00 +0100 | [diff] [blame] | 85 | |
Rob Clark | adae431 | 2017-09-13 18:05:30 -0400 | [diff] [blame] | 86 | uint16_t *efi_dp_str(struct efi_device_path *dp); |
| 87 | |
Rob Clark | 9975fe9 | 2017-09-13 18:05:38 -0400 | [diff] [blame] | 88 | extern const efi_guid_t efi_global_variable_guid; |
Alexander Graf | c1311ad | 2016-03-04 01:10:00 +0100 | [diff] [blame] | 89 | extern const efi_guid_t efi_guid_console_control; |
Alexander Graf | cb149c6 | 2016-03-04 01:09:58 +0100 | [diff] [blame] | 90 | extern const efi_guid_t efi_guid_device_path; |
| 91 | extern const efi_guid_t efi_guid_loaded_image; |
xypron.glpk@gmx.de | cc5b708 | 2017-07-11 22:06:25 +0200 | [diff] [blame] | 92 | extern const efi_guid_t efi_guid_device_path_to_text_protocol; |
Rob Clark | 2a92080 | 2017-09-13 18:05:34 -0400 | [diff] [blame] | 93 | extern const efi_guid_t efi_simple_file_system_protocol_guid; |
| 94 | extern const efi_guid_t efi_file_info_guid; |
Alexander Graf | cb149c6 | 2016-03-04 01:09:58 +0100 | [diff] [blame] | 95 | |
Alexander Graf | 50149ea | 2016-03-04 01:10:01 +0100 | [diff] [blame] | 96 | extern unsigned int __efi_runtime_start, __efi_runtime_stop; |
| 97 | extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop; |
| 98 | |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 99 | /* |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 100 | * When the UEFI payload wants to open a protocol on an object to get its |
| 101 | * interface (usually a struct with callback functions), this struct maps the |
xypron.glpk@gmx.de | b5349f7 | 2017-07-11 22:06:14 +0200 | [diff] [blame] | 102 | * protocol GUID to the respective protocol interface */ |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 103 | struct efi_handler { |
| 104 | const efi_guid_t *guid; |
xypron.glpk@gmx.de | b5349f7 | 2017-07-11 22:06:14 +0200 | [diff] [blame] | 105 | void *protocol_interface; |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 106 | }; |
| 107 | |
| 108 | /* |
| 109 | * UEFI has a poor man's OO model where one "object" can be polymorphic and have |
| 110 | * multiple different protocols (classes) attached to it. |
| 111 | * |
| 112 | * This struct is the parent struct for all of our actual implementation objects |
| 113 | * that can include it to make themselves an EFI object |
| 114 | */ |
| 115 | struct efi_object { |
| 116 | /* Every UEFI object is part of a global object list */ |
| 117 | struct list_head link; |
Heinrich Schuchardt | 842a8e4 | 2017-08-27 00:51:04 +0200 | [diff] [blame] | 118 | /* We support up to 16 "protocols" an object can be accessed through */ |
| 119 | struct efi_handler protocols[16]; |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 120 | /* The object spawner can either use this for data or as identifier */ |
| 121 | void *handle; |
| 122 | }; |
| 123 | |
Rob Clark | 641833d | 2017-07-24 10:39:00 -0400 | [diff] [blame] | 124 | #define EFI_PROTOCOL_OBJECT(_guid, _protocol) (struct efi_object){ \ |
| 125 | .protocols = {{ \ |
| 126 | .guid = &(_guid), \ |
| 127 | .protocol_interface = (void *)(_protocol), \ |
| 128 | }}, \ |
| 129 | .handle = (void *)(_protocol), \ |
| 130 | } |
| 131 | |
xypron.glpk@gmx.de | c684159 | 2017-07-18 20:17:18 +0200 | [diff] [blame] | 132 | /** |
| 133 | * struct efi_event |
| 134 | * |
| 135 | * @type: Type of event, see efi_create_event |
| 136 | * @notify_tpl: Task priority level of notifications |
| 137 | * @trigger_time: Period of the timer |
| 138 | * @trigger_next: Next time to trigger the timer |
| 139 | * @nofify_function: Function to call when the event is triggered |
| 140 | * @notify_context: Data to be passed to the notify function |
| 141 | * @trigger_type: Type of timer, see efi_set_timer |
Heinrich Schuchardt | e190e89 | 2017-10-04 15:03:24 +0200 | [diff] [blame] | 142 | * @queued: The notification function is queued |
| 143 | * @signaled: The event occurred. The event is in the signaled state. |
xypron.glpk@gmx.de | c684159 | 2017-07-18 20:17:18 +0200 | [diff] [blame] | 144 | */ |
| 145 | struct efi_event { |
xypron.glpk@gmx.de | b521d29 | 2017-07-19 19:22:34 +0200 | [diff] [blame] | 146 | uint32_t type; |
Heinrich Schuchardt | 152cade | 2017-11-06 21:17:47 +0100 | [diff] [blame] | 147 | efi_uintn_t notify_tpl; |
xypron.glpk@gmx.de | c684159 | 2017-07-18 20:17:18 +0200 | [diff] [blame] | 148 | void (EFIAPI *notify_function)(struct efi_event *event, void *context); |
| 149 | void *notify_context; |
| 150 | u64 trigger_next; |
| 151 | u64 trigger_time; |
xypron.glpk@gmx.de | b521d29 | 2017-07-19 19:22:34 +0200 | [diff] [blame] | 152 | enum efi_timer_delay trigger_type; |
Heinrich Schuchardt | e190e89 | 2017-10-04 15:03:24 +0200 | [diff] [blame] | 153 | bool is_queued; |
| 154 | bool is_signaled; |
xypron.glpk@gmx.de | c684159 | 2017-07-18 20:17:18 +0200 | [diff] [blame] | 155 | }; |
| 156 | |
| 157 | |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 158 | /* This list contains all UEFI objects we know of */ |
| 159 | extern struct list_head efi_obj_list; |
| 160 | |
xypron.glpk@gmx.de | 91be9a7 | 2017-07-18 20:17:22 +0200 | [diff] [blame] | 161 | /* Called by bootefi to make console interface available */ |
| 162 | int efi_console_register(void); |
Alexander Graf | 2a22d05 | 2016-03-04 01:10:02 +0100 | [diff] [blame] | 163 | /* Called by bootefi to make all disk storage accessible as EFI objects */ |
| 164 | int efi_disk_register(void); |
Alexander Graf | be8d324 | 2016-03-15 18:38:21 +0100 | [diff] [blame] | 165 | /* Called by bootefi to make GOP (graphical) interface available */ |
| 166 | int efi_gop_register(void); |
Alexander Graf | 0efe1bc | 2016-05-06 21:01:01 +0200 | [diff] [blame] | 167 | /* Called by bootefi to make the network interface available */ |
Rob Clark | 95c5553 | 2017-09-13 18:05:33 -0400 | [diff] [blame] | 168 | int efi_net_register(void); |
Heinrich Schuchardt | b3d6090 | 2017-10-18 18:13:04 +0200 | [diff] [blame] | 169 | /* Called by bootefi to make the watchdog available */ |
| 170 | int efi_watchdog_register(void); |
Alexander Graf | e663b35 | 2016-08-19 01:23:29 +0200 | [diff] [blame] | 171 | /* Called by bootefi to make SMBIOS tables available */ |
| 172 | void efi_smbios_register(void); |
Alexander Graf | 0efe1bc | 2016-05-06 21:01:01 +0200 | [diff] [blame] | 173 | |
Rob Clark | 2a92080 | 2017-09-13 18:05:34 -0400 | [diff] [blame] | 174 | struct efi_simple_file_system_protocol * |
| 175 | efi_fs_from_path(struct efi_device_path *fp); |
| 176 | |
Alexander Graf | 0efe1bc | 2016-05-06 21:01:01 +0200 | [diff] [blame] | 177 | /* Called by networking code to memorize the dhcp ack package */ |
| 178 | void efi_net_set_dhcp_ack(void *pkt, int len); |
Heinrich Schuchardt | b3d6090 | 2017-10-18 18:13:04 +0200 | [diff] [blame] | 179 | /* Called by efi_set_watchdog_timer to reset the timer */ |
| 180 | efi_status_t efi_set_watchdog(unsigned long timeout); |
Alexander Graf | 0efe1bc | 2016-05-06 21:01:01 +0200 | [diff] [blame] | 181 | |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 182 | /* Called from places to check whether a timer expired */ |
| 183 | void efi_timer_check(void); |
| 184 | /* PE loader implementation */ |
Alexander Graf | cb149c6 | 2016-03-04 01:09:58 +0100 | [diff] [blame] | 185 | void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info); |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 186 | /* Called once to store the pristine gd pointer */ |
| 187 | void efi_save_gd(void); |
Rob Clark | c160d2f | 2017-07-27 08:04:18 -0400 | [diff] [blame] | 188 | /* Special case handler for error/abort that just tries to dtrt to get |
| 189 | * back to u-boot world */ |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 190 | void efi_restore_gd(void); |
Alexander Graf | 50149ea | 2016-03-04 01:10:01 +0100 | [diff] [blame] | 191 | /* Call this to relocate the runtime section to an address space */ |
| 192 | void efi_runtime_relocate(ulong offset, struct efi_mem_desc *map); |
Alexander Graf | 0f4060e | 2016-03-04 01:10:14 +0100 | [diff] [blame] | 193 | /* Call this to set the current device name */ |
Alexander Graf | c07ad7c | 2016-04-11 16:16:19 +0200 | [diff] [blame] | 194 | void efi_set_bootdev(const char *dev, const char *devnr, const char *path); |
Heinrich Schuchardt | 2edab5e | 2017-10-26 19:25:49 +0200 | [diff] [blame] | 195 | /* Create handle */ |
| 196 | efi_status_t efi_create_handle(void **handle); |
Heinrich Schuchardt | 1b68153 | 2017-11-06 21:17:50 +0100 | [diff] [blame] | 197 | /* Call this to validate a handle and find the EFI object for it */ |
Heinrich Schuchardt | 085d07c | 2017-10-26 19:25:50 +0200 | [diff] [blame] | 198 | struct efi_object *efi_search_obj(const void *handle); |
xypron.glpk@gmx.de | 49deb45 | 2017-07-18 20:17:20 +0200 | [diff] [blame] | 199 | /* Call this to create an event */ |
Heinrich Schuchardt | 152cade | 2017-11-06 21:17:47 +0100 | [diff] [blame] | 200 | efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl, |
xypron.glpk@gmx.de | 49deb45 | 2017-07-18 20:17:20 +0200 | [diff] [blame] | 201 | void (EFIAPI *notify_function) ( |
| 202 | struct efi_event *event, |
| 203 | void *context), |
| 204 | void *notify_context, struct efi_event **event); |
xypron.glpk@gmx.de | bfc7246 | 2017-07-18 20:17:21 +0200 | [diff] [blame] | 205 | /* Call this to set a timer */ |
xypron.glpk@gmx.de | b521d29 | 2017-07-19 19:22:34 +0200 | [diff] [blame] | 206 | efi_status_t efi_set_timer(struct efi_event *event, enum efi_timer_delay type, |
xypron.glpk@gmx.de | bfc7246 | 2017-07-18 20:17:21 +0200 | [diff] [blame] | 207 | uint64_t trigger_time); |
xypron.glpk@gmx.de | 91be9a7 | 2017-07-18 20:17:22 +0200 | [diff] [blame] | 208 | /* Call this to signal an event */ |
| 209 | void efi_signal_event(struct efi_event *event); |
Alexander Graf | 50149ea | 2016-03-04 01:10:01 +0100 | [diff] [blame] | 210 | |
Rob Clark | 2a92080 | 2017-09-13 18:05:34 -0400 | [diff] [blame] | 211 | /* open file system: */ |
| 212 | struct efi_simple_file_system_protocol *efi_simple_file_system( |
| 213 | struct blk_desc *desc, int part, struct efi_device_path *dp); |
| 214 | |
| 215 | /* open file from device-path: */ |
| 216 | struct efi_file_handle *efi_file_from_path(struct efi_device_path *fp); |
| 217 | |
| 218 | |
Alexander Graf | 5d00995 | 2016-03-04 01:10:04 +0100 | [diff] [blame] | 219 | /* Generic EFI memory allocator, call this to get memory */ |
| 220 | void *efi_alloc(uint64_t len, int memory_type); |
| 221 | /* More specific EFI memory allocator, called by EFI payloads */ |
Heinrich Schuchardt | f5a2a93 | 2017-11-06 21:17:48 +0100 | [diff] [blame] | 222 | efi_status_t efi_allocate_pages(int type, int memory_type, efi_uintn_t pages, |
Alexander Graf | 5d00995 | 2016-03-04 01:10:04 +0100 | [diff] [blame] | 223 | uint64_t *memory); |
Stefan Brüns | b61d857 | 2016-10-01 23:32:27 +0200 | [diff] [blame] | 224 | /* EFI memory free function. */ |
Heinrich Schuchardt | f5a2a93 | 2017-11-06 21:17:48 +0100 | [diff] [blame] | 225 | efi_status_t efi_free_pages(uint64_t memory, efi_uintn_t pages); |
Stefan Brüns | ead1274 | 2016-10-09 22:17:18 +0200 | [diff] [blame] | 226 | /* EFI memory allocator for small allocations */ |
Heinrich Schuchardt | f5a2a93 | 2017-11-06 21:17:48 +0100 | [diff] [blame] | 227 | efi_status_t efi_allocate_pool(int pool_type, efi_uintn_t size, |
Stefan Brüns | ead1274 | 2016-10-09 22:17:18 +0200 | [diff] [blame] | 228 | void **buffer); |
Stefan Brüns | 42417bc | 2016-10-09 22:17:26 +0200 | [diff] [blame] | 229 | /* EFI pool memory free function. */ |
| 230 | efi_status_t efi_free_pool(void *buffer); |
Alexander Graf | 5d00995 | 2016-03-04 01:10:04 +0100 | [diff] [blame] | 231 | /* Returns the EFI memory map */ |
Heinrich Schuchardt | f5a2a93 | 2017-11-06 21:17:48 +0100 | [diff] [blame] | 232 | efi_status_t efi_get_memory_map(efi_uintn_t *memory_map_size, |
Alexander Graf | 5d00995 | 2016-03-04 01:10:04 +0100 | [diff] [blame] | 233 | struct efi_mem_desc *memory_map, |
Heinrich Schuchardt | f5a2a93 | 2017-11-06 21:17:48 +0100 | [diff] [blame] | 234 | efi_uintn_t *map_key, |
| 235 | efi_uintn_t *descriptor_size, |
Alexander Graf | 5d00995 | 2016-03-04 01:10:04 +0100 | [diff] [blame] | 236 | uint32_t *descriptor_version); |
| 237 | /* Adds a range into the EFI memory map */ |
| 238 | uint64_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type, |
| 239 | bool overlap_only_ram); |
| 240 | /* Called by board init to initialize the EFI memory map */ |
| 241 | int efi_memory_init(void); |
Alexander Graf | 488bf12 | 2016-08-19 01:23:24 +0200 | [diff] [blame] | 242 | /* Adds new or overrides configuration table entry to the system table */ |
| 243 | efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table); |
Rob Clark | 95c5553 | 2017-09-13 18:05:33 -0400 | [diff] [blame] | 244 | void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *obj, |
| 245 | struct efi_device_path *device_path, |
| 246 | struct efi_device_path *file_path); |
Rob Clark | 9975fe9 | 2017-09-13 18:05:38 -0400 | [diff] [blame] | 247 | efi_status_t efi_load_image_from_path(struct efi_device_path *file_path, |
| 248 | void **buffer); |
Alexander Graf | 5d00995 | 2016-03-04 01:10:04 +0100 | [diff] [blame] | 249 | |
Alexander Graf | 51735ae | 2016-05-11 18:25:48 +0200 | [diff] [blame] | 250 | #ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER |
| 251 | extern void *efi_bounce_buffer; |
| 252 | #define EFI_LOADER_BOUNCE_BUFFER_SIZE (64 * 1024 * 1024) |
| 253 | #endif |
| 254 | |
Rob Clark | b66c60d | 2017-09-13 18:05:28 -0400 | [diff] [blame] | 255 | |
| 256 | struct efi_device_path *efi_dp_next(const struct efi_device_path *dp); |
Heinrich Schuchardt | ff401d3 | 2017-10-26 19:25:48 +0200 | [diff] [blame] | 257 | int efi_dp_match(const struct efi_device_path *a, |
| 258 | const struct efi_device_path *b); |
Rob Clark | b66c60d | 2017-09-13 18:05:28 -0400 | [diff] [blame] | 259 | struct efi_object *efi_dp_find_obj(struct efi_device_path *dp, |
| 260 | struct efi_device_path **rem); |
| 261 | unsigned efi_dp_size(const struct efi_device_path *dp); |
| 262 | struct efi_device_path *efi_dp_dup(const struct efi_device_path *dp); |
| 263 | struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1, |
| 264 | const struct efi_device_path *dp2); |
| 265 | struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp, |
| 266 | const struct efi_device_path *node); |
| 267 | |
| 268 | |
| 269 | struct efi_device_path *efi_dp_from_dev(struct udevice *dev); |
| 270 | struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part); |
| 271 | struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part, |
| 272 | const char *path); |
| 273 | struct efi_device_path *efi_dp_from_eth(void); |
Rob Clark | bf19273 | 2017-10-10 08:23:06 -0400 | [diff] [blame] | 274 | struct efi_device_path *efi_dp_from_mem(uint32_t mem_type, |
| 275 | uint64_t start_address, |
| 276 | uint64_t end_address); |
Rob Clark | b66c60d | 2017-09-13 18:05:28 -0400 | [diff] [blame] | 277 | void efi_dp_split_file_path(struct efi_device_path *full_path, |
| 278 | struct efi_device_path **device_path, |
| 279 | struct efi_device_path **file_path); |
| 280 | |
| 281 | #define EFI_DP_TYPE(_dp, _type, _subtype) \ |
| 282 | (((_dp)->type == DEVICE_PATH_TYPE_##_type) && \ |
| 283 | ((_dp)->sub_type == DEVICE_PATH_SUB_TYPE_##_subtype)) |
| 284 | |
Alexander Graf | 0f4060e | 2016-03-04 01:10:14 +0100 | [diff] [blame] | 285 | /* Convert strings from normal C strings to uEFI strings */ |
Simon Glass | 487d756 | 2016-05-14 14:03:05 -0600 | [diff] [blame] | 286 | static inline void ascii2unicode(u16 *unicode, const char *ascii) |
Alexander Graf | 0f4060e | 2016-03-04 01:10:14 +0100 | [diff] [blame] | 287 | { |
| 288 | while (*ascii) |
| 289 | *(unicode++) = *(ascii++); |
| 290 | } |
| 291 | |
Rob Clark | 3e094c5 | 2017-07-24 07:59:11 -0400 | [diff] [blame] | 292 | static inline int guidcmp(const efi_guid_t *g1, const efi_guid_t *g2) |
| 293 | { |
| 294 | return memcmp(g1, g2, sizeof(efi_guid_t)); |
| 295 | } |
| 296 | |
Alexander Graf | 50149ea | 2016-03-04 01:10:01 +0100 | [diff] [blame] | 297 | /* |
| 298 | * Use these to indicate that your code / data should go into the EFI runtime |
| 299 | * section and thus still be available when the OS is running |
| 300 | */ |
Alexander Graf | 3c63db9 | 2016-10-14 13:45:30 +0200 | [diff] [blame] | 301 | #define __efi_runtime_data __attribute__ ((section ("efi_runtime_data"))) |
| 302 | #define __efi_runtime __attribute__ ((section ("efi_runtime_text"))) |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 303 | |
Alexander Graf | 80a4800 | 2016-08-16 21:08:45 +0200 | [diff] [blame] | 304 | /* Call this with mmio_ptr as the _pointer_ to a pointer to an MMIO region |
| 305 | * to make it available at runtime */ |
| 306 | void efi_add_runtime_mmio(void *mmio_ptr, u64 len); |
| 307 | |
| 308 | /* Boards may provide the functions below to implement RTS functionality */ |
| 309 | |
Alexander Graf | 3c63db9 | 2016-10-14 13:45:30 +0200 | [diff] [blame] | 310 | void __efi_runtime EFIAPI efi_reset_system( |
Alexander Graf | 80a4800 | 2016-08-16 21:08:45 +0200 | [diff] [blame] | 311 | enum efi_reset_type reset_type, |
| 312 | efi_status_t reset_status, |
| 313 | unsigned long data_size, void *reset_data); |
| 314 | void efi_reset_system_init(void); |
| 315 | |
Alexander Graf | 3c63db9 | 2016-10-14 13:45:30 +0200 | [diff] [blame] | 316 | efi_status_t __efi_runtime EFIAPI efi_get_time( |
Alexander Graf | 80a4800 | 2016-08-16 21:08:45 +0200 | [diff] [blame] | 317 | struct efi_time *time, |
| 318 | struct efi_time_cap *capabilities); |
| 319 | void efi_get_time_init(void); |
| 320 | |
Heinrich Schuchardt | 623b3a5 | 2017-09-15 10:06:11 +0200 | [diff] [blame] | 321 | #ifdef CONFIG_CMD_BOOTEFI_SELFTEST |
| 322 | /* |
| 323 | * Entry point for the tests of the EFI API. |
| 324 | * It is called by 'bootefi selftest' |
| 325 | */ |
| 326 | efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle, |
| 327 | struct efi_system_table *systab); |
| 328 | #endif |
| 329 | |
Rob Clark | ad644e7 | 2017-09-13 18:05:37 -0400 | [diff] [blame] | 330 | efi_status_t EFIAPI efi_get_variable(s16 *variable_name, |
| 331 | efi_guid_t *vendor, u32 *attributes, |
| 332 | unsigned long *data_size, void *data); |
| 333 | efi_status_t EFIAPI efi_get_next_variable( |
| 334 | unsigned long *variable_name_size, |
| 335 | s16 *variable_name, efi_guid_t *vendor); |
| 336 | efi_status_t EFIAPI efi_set_variable(s16 *variable_name, |
| 337 | efi_guid_t *vendor, u32 attributes, |
| 338 | unsigned long data_size, void *data); |
| 339 | |
Rob Clark | 9975fe9 | 2017-09-13 18:05:38 -0400 | [diff] [blame] | 340 | void *efi_bootmgr_load(struct efi_device_path **device_path, |
| 341 | struct efi_device_path **file_path); |
| 342 | |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 343 | #else /* defined(EFI_LOADER) && !defined(CONFIG_SPL_BUILD) */ |
| 344 | |
Alexander Graf | 50149ea | 2016-03-04 01:10:01 +0100 | [diff] [blame] | 345 | /* Without CONFIG_EFI_LOADER we don't have a runtime section, stub it out */ |
Alexander Graf | 3c63db9 | 2016-10-14 13:45:30 +0200 | [diff] [blame] | 346 | #define __efi_runtime_data |
| 347 | #define __efi_runtime |
Alexander Graf | 97d0144 | 2016-11-17 01:02:56 +0100 | [diff] [blame] | 348 | static inline void efi_add_runtime_mmio(void *mmio_ptr, u64 len) { } |
Alexander Graf | 50149ea | 2016-03-04 01:10:01 +0100 | [diff] [blame] | 349 | |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 350 | /* No loader configured, stub out EFI_ENTRY */ |
| 351 | static inline void efi_restore_gd(void) { } |
Alexander Graf | c07ad7c | 2016-04-11 16:16:19 +0200 | [diff] [blame] | 352 | static inline void efi_set_bootdev(const char *dev, const char *devnr, |
| 353 | const char *path) { } |
Alexander Graf | 0efe1bc | 2016-05-06 21:01:01 +0200 | [diff] [blame] | 354 | static inline void efi_net_set_dhcp_ack(void *pkt, int len) { } |
Alexander Graf | bee9116 | 2016-03-04 01:09:59 +0100 | [diff] [blame] | 355 | |
Heinrich Schuchardt | cd9e18d | 2017-10-18 18:13:07 +0200 | [diff] [blame] | 356 | #endif /* CONFIG_EFI_LOADER && !CONFIG_SPL_BUILD */ |
| 357 | |
| 358 | #endif /* _EFI_LOADER_H */ |