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Commit | Line | Data |
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b9939336 AG |
1 | /* |
2 | * EFI application loader | |
3 | * | |
4 | * Copyright (c) 2016 Alexander Graf | |
5 | * | |
6 | * SPDX-License-Identifier: GPL-2.0+ | |
7 | */ | |
8 | ||
d78e40d6 | 9 | #include <charset.h> |
b9939336 AG |
10 | #include <common.h> |
11 | #include <command.h> | |
9d922450 | 12 | #include <dm.h> |
b9939336 | 13 | #include <efi_loader.h> |
d78e40d6 | 14 | #include <efi_selftest.h> |
b9939336 | 15 | #include <errno.h> |
b08c8c48 MY |
16 | #include <linux/libfdt.h> |
17 | #include <linux/libfdt_env.h> | |
ad0c1a3d | 18 | #include <memalign.h> |
0d9d501f | 19 | #include <asm/global_data.h> |
e275458c SG |
20 | #include <asm-generic/sections.h> |
21 | #include <linux/linkage.h> | |
0d9d501f AG |
22 | |
23 | DECLARE_GLOBAL_DATA_PTR; | |
b9939336 | 24 | |
fc225e60 HS |
25 | #define OBJ_LIST_NOT_INITIALIZED 1 |
26 | ||
27 | static efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED; | |
7cbc1241 | 28 | |
95c5553e RC |
29 | static struct efi_device_path *bootefi_image_path; |
30 | static struct efi_device_path *bootefi_device_path; | |
b9939336 | 31 | |
7cbc1241 | 32 | /* Initialize and populate EFI object list */ |
fc225e60 | 33 | efi_status_t efi_init_obj_list(void) |
7cbc1241 | 34 | { |
fc225e60 HS |
35 | efi_status_t ret = EFI_SUCCESS; |
36 | ||
098a6cdd | 37 | /* Initialize once only */ |
fc225e60 HS |
38 | if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED) |
39 | return efi_obj_list_initialized; | |
7cbc1241 | 40 | |
05ef48a2 | 41 | /* Initialize EFI driver uclass */ |
fc225e60 HS |
42 | ret = efi_driver_init(); |
43 | if (ret != EFI_SUCCESS) | |
44 | goto out; | |
05ef48a2 | 45 | |
fc225e60 HS |
46 | ret = efi_console_register(); |
47 | if (ret != EFI_SUCCESS) | |
48 | goto out; | |
7cbc1241 | 49 | #ifdef CONFIG_PARTITIONS |
fc225e60 HS |
50 | ret = efi_disk_register(); |
51 | if (ret != EFI_SUCCESS) | |
52 | goto out; | |
7cbc1241 HS |
53 | #endif |
54 | #if defined(CONFIG_LCD) || defined(CONFIG_DM_VIDEO) | |
fc225e60 HS |
55 | ret = efi_gop_register(); |
56 | if (ret != EFI_SUCCESS) | |
57 | goto out; | |
7cbc1241 | 58 | #endif |
3b3ea2c5 | 59 | #ifdef CONFIG_CMD_NET |
fc225e60 HS |
60 | ret = efi_net_register(); |
61 | if (ret != EFI_SUCCESS) | |
62 | goto out; | |
7cbc1241 HS |
63 | #endif |
64 | #ifdef CONFIG_GENERATE_SMBIOS_TABLE | |
fc225e60 HS |
65 | ret = efi_smbios_register(); |
66 | if (ret != EFI_SUCCESS) | |
67 | goto out; | |
7cbc1241 | 68 | #endif |
fc225e60 HS |
69 | ret = efi_watchdog_register(); |
70 | if (ret != EFI_SUCCESS) | |
71 | goto out; | |
7cbc1241 HS |
72 | |
73 | /* Initialize EFI runtime services */ | |
fc225e60 HS |
74 | ret = efi_reset_system_init(); |
75 | if (ret != EFI_SUCCESS) | |
76 | goto out; | |
77 | ret = efi_get_time_init(); | |
78 | if (ret != EFI_SUCCESS) | |
79 | goto out; | |
80 | ||
81 | out: | |
82 | efi_obj_list_initialized = ret; | |
83 | return ret; | |
7cbc1241 HS |
84 | } |
85 | ||
d78e40d6 HS |
86 | /* |
87 | * Set the load options of an image from an environment variable. | |
88 | * | |
89 | * @loaded_image_info: the image | |
90 | * @env_var: name of the environment variable | |
91 | */ | |
92 | static void set_load_options(struct efi_loaded_image *loaded_image_info, | |
93 | const char *env_var) | |
94 | { | |
95 | size_t size; | |
96 | const char *env = env_get(env_var); | |
97 | ||
98 | loaded_image_info->load_options = NULL; | |
99 | loaded_image_info->load_options_size = 0; | |
100 | if (!env) | |
101 | return; | |
102 | size = strlen(env) + 1; | |
103 | loaded_image_info->load_options = calloc(size, sizeof(u16)); | |
104 | if (!loaded_image_info->load_options) { | |
105 | printf("ERROR: Out of memory\n"); | |
106 | return; | |
107 | } | |
108 | utf8_to_utf16(loaded_image_info->load_options, (u8 *)env, size); | |
109 | loaded_image_info->load_options_size = size * 2; | |
110 | } | |
111 | ||
0d9d501f AG |
112 | static void *copy_fdt(void *fdt) |
113 | { | |
114 | u64 fdt_size = fdt_totalsize(fdt); | |
ad0c1a3d AG |
115 | unsigned long fdt_ram_start = -1L, fdt_pages; |
116 | u64 new_fdt_addr; | |
0d9d501f | 117 | void *new_fdt; |
ad0c1a3d | 118 | int i; |
0d9d501f | 119 | |
ad0c1a3d AG |
120 | for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { |
121 | u64 ram_start = gd->bd->bi_dram[i].start; | |
122 | u64 ram_size = gd->bd->bi_dram[i].size; | |
0d9d501f | 123 | |
ad0c1a3d AG |
124 | if (!ram_size) |
125 | continue; | |
126 | ||
127 | if (ram_start < fdt_ram_start) | |
128 | fdt_ram_start = ram_start; | |
129 | } | |
130 | ||
131 | /* Give us at least 4kb breathing room */ | |
a44bffcc | 132 | fdt_size = ALIGN(fdt_size + 4096, EFI_PAGE_SIZE); |
ad0c1a3d AG |
133 | fdt_pages = fdt_size >> EFI_PAGE_SHIFT; |
134 | ||
135 | /* Safe fdt location is at 128MB */ | |
136 | new_fdt_addr = fdt_ram_start + (128 * 1024 * 1024) + fdt_size; | |
17ff6f02 | 137 | if (efi_allocate_pages(1, EFI_RUNTIME_SERVICES_DATA, fdt_pages, |
ad0c1a3d AG |
138 | &new_fdt_addr) != EFI_SUCCESS) { |
139 | /* If we can't put it there, put it somewhere */ | |
a44bffcc | 140 | new_fdt_addr = (ulong)memalign(EFI_PAGE_SIZE, fdt_size); |
17ff6f02 | 141 | if (efi_allocate_pages(1, EFI_RUNTIME_SERVICES_DATA, fdt_pages, |
85a6e9b3 AG |
142 | &new_fdt_addr) != EFI_SUCCESS) { |
143 | printf("ERROR: Failed to reserve space for FDT\n"); | |
144 | return NULL; | |
145 | } | |
ad0c1a3d | 146 | } |
85a6e9b3 | 147 | |
ad0c1a3d | 148 | new_fdt = (void*)(ulong)new_fdt_addr; |
0d9d501f AG |
149 | memcpy(new_fdt, fdt, fdt_totalsize(fdt)); |
150 | fdt_set_totalsize(new_fdt, fdt_size); | |
151 | ||
152 | return new_fdt; | |
153 | } | |
154 | ||
3eb0841b | 155 | static efi_status_t efi_do_enter( |
2074f700 | 156 | efi_handle_t image_handle, struct efi_system_table *st, |
c6fa5df6 AG |
157 | EFIAPI efi_status_t (*entry)( |
158 | efi_handle_t image_handle, | |
159 | struct efi_system_table *st)) | |
b06d8ac3 HS |
160 | { |
161 | efi_status_t ret = EFI_LOAD_ERROR; | |
162 | ||
163 | if (entry) | |
164 | ret = entry(image_handle, st); | |
165 | st->boottime->exit(image_handle, ret, 0, NULL); | |
166 | return ret; | |
167 | } | |
168 | ||
ec6617c3 | 169 | #ifdef CONFIG_ARM64 |
c6fa5df6 | 170 | static efi_status_t efi_run_in_el2(EFIAPI efi_status_t (*entry)( |
2074f700 HS |
171 | efi_handle_t image_handle, struct efi_system_table *st), |
172 | efi_handle_t image_handle, struct efi_system_table *st) | |
ec6617c3 AW |
173 | { |
174 | /* Enable caches again */ | |
175 | dcache_enable(); | |
176 | ||
b06d8ac3 | 177 | return efi_do_enter(image_handle, st, entry); |
ec6617c3 AW |
178 | } |
179 | #endif | |
180 | ||
bc4f9133 HS |
181 | static efi_status_t efi_install_fdt(void *fdt) |
182 | { | |
183 | bootm_headers_t img = { 0 }; | |
184 | ulong fdt_pages, fdt_size, fdt_start, fdt_end; | |
185 | efi_status_t ret; | |
186 | ||
187 | if (fdt_check_header(fdt)) { | |
188 | printf("ERROR: invalid device tree\n"); | |
189 | return EFI_INVALID_PARAMETER; | |
190 | } | |
191 | ||
192 | /* Prepare fdt for payload */ | |
193 | fdt = copy_fdt(fdt); | |
194 | if (!fdt) | |
195 | return EFI_OUT_OF_RESOURCES; | |
196 | ||
197 | if (image_setup_libfdt(&img, fdt, 0, NULL)) { | |
198 | printf("ERROR: failed to process device tree\n"); | |
199 | return EFI_LOAD_ERROR; | |
200 | } | |
201 | ||
202 | /* Link to it in the efi tables */ | |
203 | ret = efi_install_configuration_table(&efi_guid_fdt, fdt); | |
204 | if (ret != EFI_SUCCESS) | |
205 | return EFI_OUT_OF_RESOURCES; | |
206 | ||
207 | /* And reserve the space in the memory map */ | |
208 | fdt_start = ((ulong)fdt) & ~EFI_PAGE_MASK; | |
209 | fdt_end = ((ulong)fdt) + fdt_totalsize(fdt); | |
210 | fdt_size = (fdt_end - fdt_start) + EFI_PAGE_MASK; | |
211 | fdt_pages = fdt_size >> EFI_PAGE_SHIFT; | |
212 | /* Give a bootloader the chance to modify the device tree */ | |
213 | fdt_pages += 2; | |
214 | ret = efi_add_memory_map(fdt_start, fdt_pages, | |
215 | EFI_BOOT_SERVICES_DATA, true); | |
216 | return ret; | |
217 | } | |
218 | ||
b9939336 AG |
219 | /* |
220 | * Load an EFI payload into a newly allocated piece of memory, register all | |
221 | * EFI objects it would want to access and jump to it. | |
222 | */ | |
bc4f9133 | 223 | static efi_status_t do_bootefi_exec(void *efi, |
3eb0841b HS |
224 | struct efi_device_path *device_path, |
225 | struct efi_device_path *image_path) | |
b9939336 | 226 | { |
95c5553e RC |
227 | struct efi_loaded_image loaded_image_info = {}; |
228 | struct efi_object loaded_image_info_obj = {}; | |
bf19273e | 229 | struct efi_device_path *memdp = NULL; |
45204b10 | 230 | efi_status_t ret; |
95c5553e | 231 | |
c6fa5df6 AG |
232 | EFIAPI efi_status_t (*entry)(efi_handle_t image_handle, |
233 | struct efi_system_table *st); | |
b9939336 | 234 | |
bf19273e RC |
235 | /* |
236 | * Special case for efi payload not loaded from disk, such as | |
237 | * 'bootefi hello' or for example payload loaded directly into | |
238 | * memory via jtag/etc: | |
239 | */ | |
240 | if (!device_path && !image_path) { | |
241 | printf("WARNING: using memory device/image path, this may confuse some payloads!\n"); | |
242 | /* actual addresses filled in after efi_load_pe() */ | |
243 | memdp = efi_dp_from_mem(0, 0, 0); | |
244 | device_path = image_path = memdp; | |
245 | } else { | |
246 | assert(device_path && image_path); | |
247 | } | |
248 | ||
95c5553e RC |
249 | efi_setup_loaded_image(&loaded_image_info, &loaded_image_info_obj, |
250 | device_path, image_path); | |
251 | ||
b9939336 AG |
252 | /* |
253 | * gd lives in a fixed register which may get clobbered while we execute | |
254 | * the payload. So save it here and restore it on every callback entry | |
255 | */ | |
256 | efi_save_gd(); | |
257 | ||
b57f48a8 HS |
258 | /* Transfer environment variable bootargs as load options */ |
259 | set_load_options(&loaded_image_info, "bootargs"); | |
b9939336 AG |
260 | /* Load the EFI payload */ |
261 | entry = efi_load_pe(efi, &loaded_image_info); | |
95c5553e | 262 | if (!entry) { |
45204b10 | 263 | ret = EFI_LOAD_ERROR; |
95c5553e RC |
264 | goto exit; |
265 | } | |
80a4800e | 266 | |
bf19273e RC |
267 | if (memdp) { |
268 | struct efi_device_path_memory *mdp = (void *)memdp; | |
269 | mdp->memory_type = loaded_image_info.image_code_type; | |
270 | mdp->start_address = (uintptr_t)loaded_image_info.image_base; | |
271 | mdp->end_address = mdp->start_address + | |
272 | loaded_image_info.image_size; | |
273 | } | |
274 | ||
ad644e7c RC |
275 | /* we don't support much: */ |
276 | env_set("efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported", | |
277 | "{ro,boot}(blob)0000000000000000"); | |
278 | ||
b9939336 | 279 | /* Call our payload! */ |
edcef3ba | 280 | debug("%s:%d Jumping to 0x%lx\n", __func__, __LINE__, (long)entry); |
a86aeaf2 AG |
281 | |
282 | if (setjmp(&loaded_image_info.exit_jmp)) { | |
95c5553e | 283 | ret = loaded_image_info.exit_status; |
95c5553e | 284 | goto exit; |
a86aeaf2 AG |
285 | } |
286 | ||
69bd459d AG |
287 | #ifdef CONFIG_ARM64 |
288 | /* On AArch64 we need to make sure we call our payload in < EL3 */ | |
289 | if (current_el() == 3) { | |
290 | smp_kick_all_cpus(); | |
291 | dcache_disable(); /* flush cache before switch to EL2 */ | |
ec6617c3 AW |
292 | |
293 | /* Move into EL2 and keep running there */ | |
ea54ad59 HS |
294 | armv8_switch_to_el2((ulong)entry, |
295 | (ulong)&loaded_image_info_obj.handle, | |
7c5e1feb | 296 | (ulong)&systab, 0, (ulong)efi_run_in_el2, |
ec6617c3 AW |
297 | ES_TO_AARCH64); |
298 | ||
299 | /* Should never reach here, efi exits with longjmp */ | |
300 | while (1) { } | |
69bd459d AG |
301 | } |
302 | #endif | |
303 | ||
ea54ad59 | 304 | ret = efi_do_enter(loaded_image_info_obj.handle, &systab, entry); |
95c5553e RC |
305 | |
306 | exit: | |
307 | /* image has returned, loaded-image obj goes *poof*: */ | |
308 | list_del(&loaded_image_info_obj.link); | |
309 | ||
310 | return ret; | |
b9939336 AG |
311 | } |
312 | ||
bc4f9133 | 313 | static int do_bootefi_bootmgr_exec(void) |
9975fe96 RC |
314 | { |
315 | struct efi_device_path *device_path, *file_path; | |
316 | void *addr; | |
317 | efi_status_t r; | |
318 | ||
9975fe96 RC |
319 | /* |
320 | * gd lives in a fixed register which may get clobbered while we execute | |
321 | * the payload. So save it here and restore it on every callback entry | |
322 | */ | |
323 | efi_save_gd(); | |
324 | ||
325 | addr = efi_bootmgr_load(&device_path, &file_path); | |
326 | if (!addr) | |
327 | return 1; | |
328 | ||
329 | printf("## Starting EFI application at %p ...\n", addr); | |
bc4f9133 | 330 | r = do_bootefi_exec(addr, device_path, file_path); |
9975fe96 RC |
331 | printf("## Application terminated, r = %lu\n", |
332 | r & ~EFI_ERROR_MASK); | |
333 | ||
334 | if (r != EFI_SUCCESS) | |
335 | return 1; | |
336 | ||
337 | return 0; | |
338 | } | |
339 | ||
b9939336 AG |
340 | /* Interpreter command to boot an arbitrary EFI image from memory */ |
341 | static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
342 | { | |
bc4f9133 HS |
343 | unsigned long addr; |
344 | char *saddr; | |
3eb0841b | 345 | efi_status_t r; |
bc4f9133 | 346 | void *fdt_addr; |
b9939336 | 347 | |
fc225e60 HS |
348 | /* Initialize EFI drivers */ |
349 | r = efi_init_obj_list(); | |
350 | if (r != EFI_SUCCESS) { | |
351 | printf("Error: Cannot set up EFI drivers, r = %lu\n", | |
352 | r & ~EFI_ERROR_MASK); | |
353 | return CMD_RET_FAILURE; | |
354 | } | |
355 | ||
b9939336 | 356 | if (argc < 2) |
3c1dcef6 | 357 | return CMD_RET_USAGE; |
bc4f9133 HS |
358 | |
359 | if (argc > 2) { | |
360 | fdt_addr = (void *)simple_strtoul(argv[2], NULL, 16); | |
361 | if (!fdt_addr && *argv[2] != '0') | |
362 | return CMD_RET_USAGE; | |
363 | /* Install device tree */ | |
364 | r = efi_install_fdt(fdt_addr); | |
365 | if (r != EFI_SUCCESS) { | |
366 | printf("ERROR: failed to install device tree\n"); | |
367 | return CMD_RET_FAILURE; | |
368 | } | |
369 | } else { | |
370 | /* Remove device tree. EFI_NOT_FOUND can be ignored here */ | |
371 | efi_install_configuration_table(&efi_guid_fdt, NULL); | |
372 | printf("WARNING: booting without device tree\n"); | |
373 | } | |
c7ae3dfd SG |
374 | #ifdef CONFIG_CMD_BOOTEFI_HELLO |
375 | if (!strcmp(argv[1], "hello")) { | |
5e44489b | 376 | ulong size = __efi_helloworld_end - __efi_helloworld_begin; |
b9939336 | 377 | |
51c533fd HS |
378 | saddr = env_get("loadaddr"); |
379 | if (saddr) | |
380 | addr = simple_strtoul(saddr, NULL, 16); | |
381 | else | |
382 | addr = CONFIG_SYS_LOAD_ADDR; | |
5e44489b | 383 | memcpy((char *)addr, __efi_helloworld_begin, size); |
c7ae3dfd | 384 | } else |
623b3a57 HS |
385 | #endif |
386 | #ifdef CONFIG_CMD_BOOTEFI_SELFTEST | |
387 | if (!strcmp(argv[1], "selftest")) { | |
7aca68ca HS |
388 | struct efi_loaded_image loaded_image_info = {}; |
389 | struct efi_object loaded_image_info_obj = {}; | |
390 | ||
f972dc14 HS |
391 | /* Construct a dummy device path. */ |
392 | bootefi_device_path = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE, | |
393 | (uintptr_t)&efi_selftest, | |
394 | (uintptr_t)&efi_selftest); | |
395 | bootefi_image_path = efi_dp_from_file(NULL, 0, "\\selftest"); | |
396 | ||
7aca68ca HS |
397 | efi_setup_loaded_image(&loaded_image_info, |
398 | &loaded_image_info_obj, | |
399 | bootefi_device_path, bootefi_image_path); | |
623b3a57 HS |
400 | /* |
401 | * gd lives in a fixed register which may get clobbered while we | |
402 | * execute the payload. So save it here and restore it on every | |
403 | * callback entry | |
404 | */ | |
405 | efi_save_gd(); | |
406 | /* Initialize and populate EFI object list */ | |
098a6cdd | 407 | efi_init_obj_list(); |
d78e40d6 HS |
408 | /* Transfer environment variable efi_selftest as load options */ |
409 | set_load_options(&loaded_image_info, "efi_selftest"); | |
410 | /* Execute the test */ | |
ea54ad59 | 411 | r = efi_selftest(loaded_image_info_obj.handle, &systab); |
c2b53902 | 412 | efi_restore_gd(); |
d78e40d6 | 413 | free(loaded_image_info.load_options); |
c2b53902 HS |
414 | list_del(&loaded_image_info_obj.link); |
415 | return r != EFI_SUCCESS; | |
623b3a57 | 416 | } else |
c7ae3dfd | 417 | #endif |
9975fe96 | 418 | if (!strcmp(argv[1], "bootmgr")) { |
bc4f9133 | 419 | return do_bootefi_bootmgr_exec(); |
9975fe96 | 420 | } else { |
c7ae3dfd | 421 | saddr = argv[1]; |
b9939336 | 422 | |
c7ae3dfd | 423 | addr = simple_strtoul(saddr, NULL, 16); |
49db1cb8 HS |
424 | /* Check that a numeric value was passed */ |
425 | if (!addr && *saddr != '0') | |
426 | return CMD_RET_USAGE; | |
c7ae3dfd | 427 | |
1c39809b AG |
428 | } |
429 | ||
5ee31baf | 430 | printf("## Starting EFI application at %08lx ...\n", addr); |
bc4f9133 HS |
431 | r = do_bootefi_exec((void *)addr, bootefi_device_path, |
432 | bootefi_image_path); | |
1da1bac4 HS |
433 | printf("## Application terminated, r = %lu\n", |
434 | r & ~EFI_ERROR_MASK); | |
b9939336 | 435 | |
1da1bac4 HS |
436 | if (r != EFI_SUCCESS) |
437 | return 1; | |
438 | else | |
439 | return 0; | |
b9939336 AG |
440 | } |
441 | ||
442 | #ifdef CONFIG_SYS_LONGHELP | |
443 | static char bootefi_help_text[] = | |
1c39809b AG |
444 | "<image address> [fdt address]\n" |
445 | " - boot EFI payload stored at address <image address>.\n" | |
446 | " If specified, the device tree located at <fdt address> gets\n" | |
c7ae3dfd SG |
447 | " exposed as EFI configuration table.\n" |
448 | #ifdef CONFIG_CMD_BOOTEFI_HELLO | |
623b3a57 HS |
449 | "bootefi hello\n" |
450 | " - boot a sample Hello World application stored within U-Boot\n" | |
451 | #endif | |
452 | #ifdef CONFIG_CMD_BOOTEFI_SELFTEST | |
bc4f9133 | 453 | "bootefi selftest [fdt address]\n" |
623b3a57 | 454 | " - boot an EFI selftest application stored within U-Boot\n" |
d78e40d6 HS |
455 | " Use environment variable efi_selftest to select a single test.\n" |
456 | " Use 'setenv efi_selftest list' to enumerate all tests.\n" | |
c7ae3dfd | 457 | #endif |
f623e07f | 458 | "bootefi bootmgr [fdt addr]\n" |
9975fe96 RC |
459 | " - load and boot EFI payload based on BootOrder/BootXXXX variables.\n" |
460 | "\n" | |
461 | " If specified, the device tree located at <fdt address> gets\n" | |
462 | " exposed as EFI configuration table.\n"; | |
b9939336 AG |
463 | #endif |
464 | ||
465 | U_BOOT_CMD( | |
1c39809b | 466 | bootefi, 3, 0, do_bootefi, |
92dfd922 | 467 | "Boots an EFI payload from memory", |
b9939336 AG |
468 | bootefi_help_text |
469 | ); | |
0f4060eb | 470 | |
95c5553e | 471 | static int parse_partnum(const char *devnr) |
0f4060eb | 472 | { |
95c5553e RC |
473 | const char *str = strchr(devnr, ':'); |
474 | if (str) { | |
475 | str++; | |
476 | return simple_strtoul(str, NULL, 16); | |
f9d334bd | 477 | } |
95c5553e RC |
478 | return 0; |
479 | } | |
f9d334bd | 480 | |
95c5553e RC |
481 | void efi_set_bootdev(const char *dev, const char *devnr, const char *path) |
482 | { | |
483 | char filename[32] = { 0 }; /* dp->str is u16[32] long */ | |
484 | char *s; | |
f9d334bd | 485 | |
95c5553e RC |
486 | if (strcmp(dev, "Net")) { |
487 | struct blk_desc *desc; | |
488 | int part; | |
8c3df0bf | 489 | |
95c5553e | 490 | desc = blk_get_dev(dev, simple_strtol(devnr, NULL, 10)); |
8300be61 SR |
491 | if (!desc) |
492 | return; | |
95c5553e | 493 | part = parse_partnum(devnr); |
0f4060eb | 494 | |
95c5553e RC |
495 | bootefi_device_path = efi_dp_from_part(desc, part); |
496 | } else { | |
3b3ea2c5 | 497 | #ifdef CONFIG_CMD_NET |
95c5553e RC |
498 | bootefi_device_path = efi_dp_from_eth(); |
499 | #endif | |
500 | } | |
c07ad7c0 | 501 | |
9975fe96 RC |
502 | if (!path) |
503 | return; | |
504 | ||
49271666 AG |
505 | if (strcmp(dev, "Net")) { |
506 | /* Add leading / to fs paths, because they're absolute */ | |
95c5553e | 507 | snprintf(filename, sizeof(filename), "/%s", path); |
49271666 | 508 | } else { |
95c5553e | 509 | snprintf(filename, sizeof(filename), "%s", path); |
49271666 | 510 | } |
3e433e96 | 511 | /* DOS style file path: */ |
95c5553e | 512 | s = filename; |
3e433e96 RC |
513 | while ((s = strchr(s, '/'))) |
514 | *s++ = '\\'; | |
95c5553e | 515 | bootefi_image_path = efi_dp_from_file(NULL, 0, filename); |
0f4060eb | 516 | } |