blob: 4097277c9ccc440a3eab659f3c580737dba426f8 [file] [log] [blame]
Tom Rinif739fcd2018-05-07 17:02:21 -04001// SPDX-License-Identifier: GPL-2.0+
Alexander Grafb9939332016-03-10 00:27:20 +01002/*
3 * EFI application loader
4 *
5 * Copyright (c) 2016 Alexander Graf
Alexander Grafb9939332016-03-10 00:27:20 +01006 */
7
Heinrich Schuchardtd78e40d2017-10-18 18:13:13 +02008#include <charset.h>
Alexander Grafb9939332016-03-10 00:27:20 +01009#include <common.h>
10#include <command.h>
Simon Glass9d922452017-05-17 17:18:03 -060011#include <dm.h>
Alexander Grafb9939332016-03-10 00:27:20 +010012#include <efi_loader.h>
Heinrich Schuchardtd78e40d2017-10-18 18:13:13 +020013#include <efi_selftest.h>
Alexander Grafb9939332016-03-10 00:27:20 +010014#include <errno.h>
Masahiro Yamadab08c8c42018-03-05 01:20:11 +090015#include <linux/libfdt.h>
16#include <linux/libfdt_env.h>
Alexander Graf354264b2018-06-18 17:22:58 +020017#include <mapmem.h>
Alexander Grafad0c1a32016-04-11 23:51:01 +020018#include <memalign.h>
Alexander Graf0d9d5012016-04-11 16:55:26 +020019#include <asm/global_data.h>
Simon Glasse2754582016-09-25 15:27:32 -060020#include <asm-generic/sections.h>
Heinrich Schuchardtc3b11de2018-04-03 21:59:32 +020021#include <asm-generic/unaligned.h>
Simon Glasse2754582016-09-25 15:27:32 -060022#include <linux/linkage.h>
Alexander Graf0d9d5012016-04-11 16:55:26 +020023
Mark Kettenisdc500c32018-06-15 23:47:12 +020024#ifdef CONFIG_ARMV7_NONSEC
25#include <asm/armv7.h>
26#include <asm/secure.h>
27#endif
28
Alexander Graf0d9d5012016-04-11 16:55:26 +020029DECLARE_GLOBAL_DATA_PTR;
Alexander Grafb9939332016-03-10 00:27:20 +010030
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010031#define OBJ_LIST_NOT_INITIALIZED 1
32
33static efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED;
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020034
Rob Clark95c55532017-09-13 18:05:33 -040035static struct efi_device_path *bootefi_image_path;
36static struct efi_device_path *bootefi_device_path;
Alexander Grafb9939332016-03-10 00:27:20 +010037
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020038/* Initialize and populate EFI object list */
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010039efi_status_t efi_init_obj_list(void)
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020040{
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010041 efi_status_t ret = EFI_SUCCESS;
42
Heinrich Schuchardt098a6cd2018-03-03 15:28:58 +010043 /* Initialize once only */
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010044 if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED)
45 return efi_obj_list_initialized;
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020046
Heinrich Schuchardt05ef48a2018-01-21 19:29:30 +010047 /* Initialize EFI driver uclass */
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010048 ret = efi_driver_init();
49 if (ret != EFI_SUCCESS)
50 goto out;
Heinrich Schuchardt05ef48a2018-01-21 19:29:30 +010051
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010052 ret = efi_console_register();
53 if (ret != EFI_SUCCESS)
54 goto out;
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020055#ifdef CONFIG_PARTITIONS
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010056 ret = efi_disk_register();
57 if (ret != EFI_SUCCESS)
58 goto out;
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020059#endif
60#if defined(CONFIG_LCD) || defined(CONFIG_DM_VIDEO)
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010061 ret = efi_gop_register();
62 if (ret != EFI_SUCCESS)
63 goto out;
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020064#endif
Joe Hershberger092f2f32018-04-13 15:26:39 -050065#ifdef CONFIG_NET
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010066 ret = efi_net_register();
67 if (ret != EFI_SUCCESS)
68 goto out;
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020069#endif
Bin Meng86df34d2018-06-27 20:38:03 -070070#ifdef CONFIG_GENERATE_ACPI_TABLE
71 ret = efi_acpi_register();
72 if (ret != EFI_SUCCESS)
73 goto out;
74#endif
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020075#ifdef CONFIG_GENERATE_SMBIOS_TABLE
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010076 ret = efi_smbios_register();
77 if (ret != EFI_SUCCESS)
78 goto out;
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020079#endif
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010080 ret = efi_watchdog_register();
81 if (ret != EFI_SUCCESS)
82 goto out;
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020083
84 /* Initialize EFI runtime services */
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +010085 ret = efi_reset_system_init();
86 if (ret != EFI_SUCCESS)
87 goto out;
88 ret = efi_get_time_init();
89 if (ret != EFI_SUCCESS)
90 goto out;
91
92out:
93 efi_obj_list_initialized = ret;
94 return ret;
Heinrich Schuchardt7cbc1242017-07-19 19:37:22 +020095}
96
Heinrich Schuchardtd78e40d2017-10-18 18:13:13 +020097/*
Heinrich Schuchardtc3b11de2018-04-03 21:59:32 +020098 * Allow unaligned memory access.
99 *
100 * This routine is overridden by architectures providing this feature.
101 */
102void __weak allow_unaligned(void)
103{
104}
105
106/*
Heinrich Schuchardtd78e40d2017-10-18 18:13:13 +0200107 * Set the load options of an image from an environment variable.
108 *
109 * @loaded_image_info: the image
110 * @env_var: name of the environment variable
111 */
112static void set_load_options(struct efi_loaded_image *loaded_image_info,
113 const char *env_var)
114{
115 size_t size;
116 const char *env = env_get(env_var);
117
118 loaded_image_info->load_options = NULL;
119 loaded_image_info->load_options_size = 0;
120 if (!env)
121 return;
122 size = strlen(env) + 1;
123 loaded_image_info->load_options = calloc(size, sizeof(u16));
124 if (!loaded_image_info->load_options) {
125 printf("ERROR: Out of memory\n");
126 return;
127 }
128 utf8_to_utf16(loaded_image_info->load_options, (u8 *)env, size);
129 loaded_image_info->load_options_size = size * 2;
130}
131
Alexander Graf0d9d5012016-04-11 16:55:26 +0200132static void *copy_fdt(void *fdt)
133{
134 u64 fdt_size = fdt_totalsize(fdt);
Alexander Grafad0c1a32016-04-11 23:51:01 +0200135 unsigned long fdt_ram_start = -1L, fdt_pages;
136 u64 new_fdt_addr;
Alexander Graf0d9d5012016-04-11 16:55:26 +0200137 void *new_fdt;
Alexander Grafad0c1a32016-04-11 23:51:01 +0200138 int i;
Alexander Graf0d9d5012016-04-11 16:55:26 +0200139
Alexander Grafad0c1a32016-04-11 23:51:01 +0200140 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
141 u64 ram_start = gd->bd->bi_dram[i].start;
142 u64 ram_size = gd->bd->bi_dram[i].size;
Alexander Graf0d9d5012016-04-11 16:55:26 +0200143
Alexander Grafad0c1a32016-04-11 23:51:01 +0200144 if (!ram_size)
145 continue;
146
147 if (ram_start < fdt_ram_start)
148 fdt_ram_start = ram_start;
149 }
150
Simon Glassbc9a6382018-06-18 08:08:25 -0600151 /*
152 * Give us at least 4KB of breathing room in case the device tree needs
153 * to be expanded later. Round up to the nearest EFI page boundary.
154 */
155 fdt_size += 4096;
156 fdt_size = ALIGN(fdt_size + EFI_PAGE_SIZE - 1, EFI_PAGE_SIZE);
Alexander Grafad0c1a32016-04-11 23:51:01 +0200157 fdt_pages = fdt_size >> EFI_PAGE_SHIFT;
158
159 /* Safe fdt location is at 128MB */
160 new_fdt_addr = fdt_ram_start + (128 * 1024 * 1024) + fdt_size;
Heinrich Schuchardte09159c2018-05-26 10:32:27 +0200161 if (efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
162 EFI_RUNTIME_SERVICES_DATA, fdt_pages,
Alexander Grafad0c1a32016-04-11 23:51:01 +0200163 &new_fdt_addr) != EFI_SUCCESS) {
164 /* If we can't put it there, put it somewhere */
xypron.glpk@gmx.dea44bffc2017-08-11 21:19:25 +0200165 new_fdt_addr = (ulong)memalign(EFI_PAGE_SIZE, fdt_size);
Heinrich Schuchardte09159c2018-05-26 10:32:27 +0200166 if (efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
167 EFI_RUNTIME_SERVICES_DATA, fdt_pages,
Alexander Graf85a6e9b2017-07-03 13:32:35 +0200168 &new_fdt_addr) != EFI_SUCCESS) {
169 printf("ERROR: Failed to reserve space for FDT\n");
170 return NULL;
171 }
Alexander Grafad0c1a32016-04-11 23:51:01 +0200172 }
Alexander Graf85a6e9b2017-07-03 13:32:35 +0200173
Alexander Grafad0c1a32016-04-11 23:51:01 +0200174 new_fdt = (void*)(ulong)new_fdt_addr;
Alexander Graf0d9d5012016-04-11 16:55:26 +0200175 memcpy(new_fdt, fdt, fdt_totalsize(fdt));
176 fdt_set_totalsize(new_fdt, fdt_size);
177
178 return new_fdt;
179}
180
Heinrich Schuchardt3eb08412017-10-18 18:13:08 +0200181static efi_status_t efi_do_enter(
Heinrich Schuchardt2074f702018-01-11 08:16:09 +0100182 efi_handle_t image_handle, struct efi_system_table *st,
Alexander Grafc6fa5df2018-01-24 00:18:08 +0100183 EFIAPI efi_status_t (*entry)(
184 efi_handle_t image_handle,
185 struct efi_system_table *st))
xypron.glpk@gmx.deb06d8ac2017-07-04 23:15:21 +0200186{
187 efi_status_t ret = EFI_LOAD_ERROR;
188
189 if (entry)
190 ret = entry(image_handle, st);
191 st->boottime->exit(image_handle, ret, 0, NULL);
192 return ret;
193}
194
Alison Wangec6617c2016-11-10 10:49:03 +0800195#ifdef CONFIG_ARM64
Alexander Grafc6fa5df2018-01-24 00:18:08 +0100196static efi_status_t efi_run_in_el2(EFIAPI efi_status_t (*entry)(
Heinrich Schuchardt2074f702018-01-11 08:16:09 +0100197 efi_handle_t image_handle, struct efi_system_table *st),
198 efi_handle_t image_handle, struct efi_system_table *st)
Alison Wangec6617c2016-11-10 10:49:03 +0800199{
200 /* Enable caches again */
201 dcache_enable();
202
xypron.glpk@gmx.deb06d8ac2017-07-04 23:15:21 +0200203 return efi_do_enter(image_handle, st, entry);
Alison Wangec6617c2016-11-10 10:49:03 +0800204}
205#endif
206
Mark Kettenisdc500c32018-06-15 23:47:12 +0200207#ifdef CONFIG_ARMV7_NONSEC
Mark Kettenisf17f2002018-06-15 23:47:13 +0200208static bool is_nonsec;
209
Mark Kettenisdc500c32018-06-15 23:47:12 +0200210static efi_status_t efi_run_in_hyp(EFIAPI efi_status_t (*entry)(
211 efi_handle_t image_handle, struct efi_system_table *st),
212 efi_handle_t image_handle, struct efi_system_table *st)
213{
214 /* Enable caches again */
215 dcache_enable();
216
Mark Kettenisf17f2002018-06-15 23:47:13 +0200217 is_nonsec = true;
218
Mark Kettenisdc500c32018-06-15 23:47:12 +0200219 return efi_do_enter(image_handle, st, entry);
220}
221#endif
222
Simon Glass416e07e2018-06-18 08:08:28 -0600223/*
224 * efi_carve_out_dt_rsv() - Carve out DT reserved memory ranges
225 *
226 * The mem_rsv entries of the FDT are added to the memory map. Any failures are
227 * ignored because this is not critical and we would rather continue to try to
228 * boot.
229 *
230 * @fdt: Pointer to device tree
231 */
232static void efi_carve_out_dt_rsv(void *fdt)
Alexander Graf806d2fa2018-04-06 09:40:51 +0200233{
234 int nr_rsv, i;
235 uint64_t addr, size, pages;
236
237 nr_rsv = fdt_num_mem_rsv(fdt);
238
239 /* Look for an existing entry and add it to the efi mem map. */
240 for (i = 0; i < nr_rsv; i++) {
241 if (fdt_get_mem_rsv(fdt, i, &addr, &size) != 0)
242 continue;
243
244 pages = ALIGN(size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT;
Simon Glass416e07e2018-06-18 08:08:28 -0600245 if (!efi_add_memory_map(addr, pages, EFI_RESERVED_MEMORY_TYPE,
246 false))
247 printf("FDT memrsv map %d: Failed to add to map\n", i);
Alexander Graf806d2fa2018-04-06 09:40:51 +0200248 }
Alexander Graf806d2fa2018-04-06 09:40:51 +0200249}
250
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100251static efi_status_t efi_install_fdt(void *fdt)
252{
253 bootm_headers_t img = { 0 };
254 ulong fdt_pages, fdt_size, fdt_start, fdt_end;
255 efi_status_t ret;
256
257 if (fdt_check_header(fdt)) {
258 printf("ERROR: invalid device tree\n");
259 return EFI_INVALID_PARAMETER;
260 }
261
262 /* Prepare fdt for payload */
263 fdt = copy_fdt(fdt);
264 if (!fdt)
265 return EFI_OUT_OF_RESOURCES;
266
267 if (image_setup_libfdt(&img, fdt, 0, NULL)) {
268 printf("ERROR: failed to process device tree\n");
269 return EFI_LOAD_ERROR;
270 }
271
Simon Glass416e07e2018-06-18 08:08:28 -0600272 efi_carve_out_dt_rsv(fdt);
Alexander Graf806d2fa2018-04-06 09:40:51 +0200273
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100274 /* Link to it in the efi tables */
275 ret = efi_install_configuration_table(&efi_guid_fdt, fdt);
276 if (ret != EFI_SUCCESS)
277 return EFI_OUT_OF_RESOURCES;
278
279 /* And reserve the space in the memory map */
280 fdt_start = ((ulong)fdt) & ~EFI_PAGE_MASK;
281 fdt_end = ((ulong)fdt) + fdt_totalsize(fdt);
282 fdt_size = (fdt_end - fdt_start) + EFI_PAGE_MASK;
283 fdt_pages = fdt_size >> EFI_PAGE_SHIFT;
284 /* Give a bootloader the chance to modify the device tree */
285 fdt_pages += 2;
286 ret = efi_add_memory_map(fdt_start, fdt_pages,
287 EFI_BOOT_SERVICES_DATA, true);
288 return ret;
289}
290
Alexander Grafb9939332016-03-10 00:27:20 +0100291/*
292 * Load an EFI payload into a newly allocated piece of memory, register all
293 * EFI objects it would want to access and jump to it.
294 */
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100295static efi_status_t do_bootefi_exec(void *efi,
Heinrich Schuchardt3eb08412017-10-18 18:13:08 +0200296 struct efi_device_path *device_path,
297 struct efi_device_path *image_path)
Alexander Grafb9939332016-03-10 00:27:20 +0100298{
Rob Clark95c55532017-09-13 18:05:33 -0400299 struct efi_loaded_image loaded_image_info = {};
300 struct efi_object loaded_image_info_obj = {};
Alexander Graf58bc69d2018-06-12 10:21:16 +0200301 struct efi_object mem_obj = {};
Rob Clarkbf192732017-10-10 08:23:06 -0400302 struct efi_device_path *memdp = NULL;
Heinrich Schuchardt45204b12018-03-03 15:29:01 +0100303 efi_status_t ret;
Rob Clark95c55532017-09-13 18:05:33 -0400304
Alexander Grafc6fa5df2018-01-24 00:18:08 +0100305 EFIAPI efi_status_t (*entry)(efi_handle_t image_handle,
306 struct efi_system_table *st);
Alexander Grafb9939332016-03-10 00:27:20 +0100307
Rob Clarkbf192732017-10-10 08:23:06 -0400308 /*
309 * Special case for efi payload not loaded from disk, such as
310 * 'bootefi hello' or for example payload loaded directly into
311 * memory via jtag/etc:
312 */
313 if (!device_path && !image_path) {
314 printf("WARNING: using memory device/image path, this may confuse some payloads!\n");
315 /* actual addresses filled in after efi_load_pe() */
316 memdp = efi_dp_from_mem(0, 0, 0);
317 device_path = image_path = memdp;
Alexander Graf58bc69d2018-06-12 10:21:16 +0200318 efi_add_handle(&mem_obj);
319
320 ret = efi_add_protocol(mem_obj.handle, &efi_guid_device_path,
321 device_path);
322 if (ret != EFI_SUCCESS)
323 goto exit;
Rob Clarkbf192732017-10-10 08:23:06 -0400324 } else {
325 assert(device_path && image_path);
326 }
327
Rob Clark95c55532017-09-13 18:05:33 -0400328 efi_setup_loaded_image(&loaded_image_info, &loaded_image_info_obj,
329 device_path, image_path);
330
Alexander Grafb9939332016-03-10 00:27:20 +0100331 /*
332 * gd lives in a fixed register which may get clobbered while we execute
333 * the payload. So save it here and restore it on every callback entry
334 */
335 efi_save_gd();
336
Heinrich Schuchardtb57f48a2017-10-18 18:13:15 +0200337 /* Transfer environment variable bootargs as load options */
338 set_load_options(&loaded_image_info, "bootargs");
Alexander Grafb9939332016-03-10 00:27:20 +0100339 /* Load the EFI payload */
340 entry = efi_load_pe(efi, &loaded_image_info);
Rob Clark95c55532017-09-13 18:05:33 -0400341 if (!entry) {
Heinrich Schuchardt45204b12018-03-03 15:29:01 +0100342 ret = EFI_LOAD_ERROR;
Rob Clark95c55532017-09-13 18:05:33 -0400343 goto exit;
344 }
Alexander Graf80a48002016-08-16 21:08:45 +0200345
Rob Clarkbf192732017-10-10 08:23:06 -0400346 if (memdp) {
347 struct efi_device_path_memory *mdp = (void *)memdp;
348 mdp->memory_type = loaded_image_info.image_code_type;
349 mdp->start_address = (uintptr_t)loaded_image_info.image_base;
350 mdp->end_address = mdp->start_address +
351 loaded_image_info.image_size;
352 }
353
Rob Clarkad644e72017-09-13 18:05:37 -0400354 /* we don't support much: */
355 env_set("efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported",
356 "{ro,boot}(blob)0000000000000000");
357
Alexander Grafb9939332016-03-10 00:27:20 +0100358 /* Call our payload! */
Alexander Grafedcef3b2016-06-02 11:38:27 +0200359 debug("%s:%d Jumping to 0x%lx\n", __func__, __LINE__, (long)entry);
Alexander Grafa86aeaf2016-05-20 23:28:23 +0200360
361 if (setjmp(&loaded_image_info.exit_jmp)) {
Rob Clark95c55532017-09-13 18:05:33 -0400362 ret = loaded_image_info.exit_status;
Rob Clark95c55532017-09-13 18:05:33 -0400363 goto exit;
Alexander Grafa86aeaf2016-05-20 23:28:23 +0200364 }
365
Alexander Graf69bd4592016-11-17 01:02:58 +0100366#ifdef CONFIG_ARM64
367 /* On AArch64 we need to make sure we call our payload in < EL3 */
368 if (current_el() == 3) {
369 smp_kick_all_cpus();
370 dcache_disable(); /* flush cache before switch to EL2 */
Alison Wangec6617c2016-11-10 10:49:03 +0800371
372 /* Move into EL2 and keep running there */
Heinrich Schuchardtea54ad52017-11-26 14:05:22 +0100373 armv8_switch_to_el2((ulong)entry,
374 (ulong)&loaded_image_info_obj.handle,
Alison Wang7c5e1fe2017-01-17 09:39:17 +0800375 (ulong)&systab, 0, (ulong)efi_run_in_el2,
Alison Wangec6617c2016-11-10 10:49:03 +0800376 ES_TO_AARCH64);
377
378 /* Should never reach here, efi exits with longjmp */
379 while (1) { }
Alexander Graf69bd4592016-11-17 01:02:58 +0100380 }
381#endif
382
Mark Kettenisdc500c32018-06-15 23:47:12 +0200383#ifdef CONFIG_ARMV7_NONSEC
Mark Kettenisf17f2002018-06-15 23:47:13 +0200384 if (armv7_boot_nonsec() && !is_nonsec) {
Mark Kettenisdc500c32018-06-15 23:47:12 +0200385 dcache_disable(); /* flush cache before switch to HYP */
386
387 armv7_init_nonsec();
388 secure_ram_addr(_do_nonsec_entry)(
389 efi_run_in_hyp,
390 (uintptr_t)entry,
391 (uintptr_t)loaded_image_info_obj.handle,
392 (uintptr_t)&systab);
393
394 /* Should never reach here, efi exits with longjmp */
395 while (1) { }
396 }
397#endif
398
Heinrich Schuchardtea54ad52017-11-26 14:05:22 +0100399 ret = efi_do_enter(loaded_image_info_obj.handle, &systab, entry);
Rob Clark95c55532017-09-13 18:05:33 -0400400
401exit:
402 /* image has returned, loaded-image obj goes *poof*: */
403 list_del(&loaded_image_info_obj.link);
Alexander Graf58bc69d2018-06-12 10:21:16 +0200404 if (mem_obj.handle)
405 list_del(&mem_obj.link);
Rob Clark95c55532017-09-13 18:05:33 -0400406
407 return ret;
Alexander Grafb9939332016-03-10 00:27:20 +0100408}
409
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100410static int do_bootefi_bootmgr_exec(void)
Rob Clark9975fe92017-09-13 18:05:38 -0400411{
412 struct efi_device_path *device_path, *file_path;
413 void *addr;
414 efi_status_t r;
415
Rob Clark9975fe92017-09-13 18:05:38 -0400416 /*
417 * gd lives in a fixed register which may get clobbered while we execute
418 * the payload. So save it here and restore it on every callback entry
419 */
420 efi_save_gd();
421
422 addr = efi_bootmgr_load(&device_path, &file_path);
423 if (!addr)
424 return 1;
425
426 printf("## Starting EFI application at %p ...\n", addr);
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100427 r = do_bootefi_exec(addr, device_path, file_path);
Rob Clark9975fe92017-09-13 18:05:38 -0400428 printf("## Application terminated, r = %lu\n",
429 r & ~EFI_ERROR_MASK);
430
431 if (r != EFI_SUCCESS)
432 return 1;
433
434 return 0;
435}
436
Alexander Grafb9939332016-03-10 00:27:20 +0100437/* Interpreter command to boot an arbitrary EFI image from memory */
438static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
439{
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100440 unsigned long addr;
441 char *saddr;
Heinrich Schuchardt3eb08412017-10-18 18:13:08 +0200442 efi_status_t r;
Alexander Graf354264b2018-06-18 17:22:58 +0200443 unsigned long fdt_addr;
444 void *fdt;
Alexander Grafb9939332016-03-10 00:27:20 +0100445
Heinrich Schuchardtc3b11de2018-04-03 21:59:32 +0200446 /* Allow unaligned memory access */
447 allow_unaligned();
448
Heinrich Schuchardtfc225e62018-03-03 15:29:02 +0100449 /* Initialize EFI drivers */
450 r = efi_init_obj_list();
451 if (r != EFI_SUCCESS) {
452 printf("Error: Cannot set up EFI drivers, r = %lu\n",
453 r & ~EFI_ERROR_MASK);
454 return CMD_RET_FAILURE;
455 }
456
Alexander Grafb9939332016-03-10 00:27:20 +0100457 if (argc < 2)
Bin Meng3c1dcef2016-08-13 04:02:06 -0700458 return CMD_RET_USAGE;
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100459
460 if (argc > 2) {
Alexander Graf354264b2018-06-18 17:22:58 +0200461 fdt_addr = simple_strtoul(argv[2], NULL, 16);
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100462 if (!fdt_addr && *argv[2] != '0')
463 return CMD_RET_USAGE;
464 /* Install device tree */
Alexander Graf354264b2018-06-18 17:22:58 +0200465 fdt = map_sysmem(fdt_addr, 0);
466 r = efi_install_fdt(fdt);
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100467 if (r != EFI_SUCCESS) {
468 printf("ERROR: failed to install device tree\n");
469 return CMD_RET_FAILURE;
470 }
471 } else {
472 /* Remove device tree. EFI_NOT_FOUND can be ignored here */
473 efi_install_configuration_table(&efi_guid_fdt, NULL);
474 printf("WARNING: booting without device tree\n");
475 }
Simon Glassc7ae3df2016-11-07 08:47:08 -0700476#ifdef CONFIG_CMD_BOOTEFI_HELLO
477 if (!strcmp(argv[1], "hello")) {
Heinrich Schuchardt5e444892017-09-05 03:19:37 +0200478 ulong size = __efi_helloworld_end - __efi_helloworld_begin;
Alexander Grafb9939332016-03-10 00:27:20 +0100479
Heinrich Schuchardt51c533f2017-08-28 18:54:30 +0200480 saddr = env_get("loadaddr");
481 if (saddr)
482 addr = simple_strtoul(saddr, NULL, 16);
483 else
484 addr = CONFIG_SYS_LOAD_ADDR;
Alexander Graf354264b2018-06-18 17:22:58 +0200485 memcpy(map_sysmem(addr, size), __efi_helloworld_begin, size);
Simon Glassc7ae3df2016-11-07 08:47:08 -0700486 } else
487#endif
Heinrich Schuchardt623b3a52017-09-15 10:06:11 +0200488#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
489 if (!strcmp(argv[1], "selftest")) {
Heinrich Schuchardt7aca68c2017-09-20 22:54:58 +0200490 struct efi_loaded_image loaded_image_info = {};
491 struct efi_object loaded_image_info_obj = {};
492
Heinrich Schuchardtf972dc12017-10-18 18:13:09 +0200493 /* Construct a dummy device path. */
494 bootefi_device_path = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE,
495 (uintptr_t)&efi_selftest,
496 (uintptr_t)&efi_selftest);
497 bootefi_image_path = efi_dp_from_file(NULL, 0, "\\selftest");
498
Heinrich Schuchardt7aca68c2017-09-20 22:54:58 +0200499 efi_setup_loaded_image(&loaded_image_info,
500 &loaded_image_info_obj,
501 bootefi_device_path, bootefi_image_path);
Heinrich Schuchardt623b3a52017-09-15 10:06:11 +0200502 /*
503 * gd lives in a fixed register which may get clobbered while we
504 * execute the payload. So save it here and restore it on every
505 * callback entry
506 */
507 efi_save_gd();
Heinrich Schuchardtd78e40d2017-10-18 18:13:13 +0200508 /* Transfer environment variable efi_selftest as load options */
509 set_load_options(&loaded_image_info, "efi_selftest");
510 /* Execute the test */
Heinrich Schuchardtea54ad52017-11-26 14:05:22 +0100511 r = efi_selftest(loaded_image_info_obj.handle, &systab);
Heinrich Schuchardtc2b53902017-10-18 18:13:14 +0200512 efi_restore_gd();
Heinrich Schuchardtd78e40d2017-10-18 18:13:13 +0200513 free(loaded_image_info.load_options);
Heinrich Schuchardtc2b53902017-10-18 18:13:14 +0200514 list_del(&loaded_image_info_obj.link);
515 return r != EFI_SUCCESS;
Heinrich Schuchardt623b3a52017-09-15 10:06:11 +0200516 } else
517#endif
Rob Clark9975fe92017-09-13 18:05:38 -0400518 if (!strcmp(argv[1], "bootmgr")) {
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100519 return do_bootefi_bootmgr_exec();
Rob Clark9975fe92017-09-13 18:05:38 -0400520 } else {
Simon Glassc7ae3df2016-11-07 08:47:08 -0700521 saddr = argv[1];
Alexander Grafb9939332016-03-10 00:27:20 +0100522
Simon Glassc7ae3df2016-11-07 08:47:08 -0700523 addr = simple_strtoul(saddr, NULL, 16);
Heinrich Schuchardt49db1cb2018-01-24 20:33:54 +0100524 /* Check that a numeric value was passed */
525 if (!addr && *saddr != '0')
526 return CMD_RET_USAGE;
Simon Glassc7ae3df2016-11-07 08:47:08 -0700527
Alexander Graf1c398092016-04-14 16:07:53 +0200528 }
529
Simon Glass5ee31ba2016-11-07 08:47:05 -0700530 printf("## Starting EFI application at %08lx ...\n", addr);
Alexander Graf354264b2018-06-18 17:22:58 +0200531 r = do_bootefi_exec(map_sysmem(addr, 0), bootefi_device_path,
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100532 bootefi_image_path);
xypron.glpk@gmx.de1da1bac2017-07-04 23:15:23 +0200533 printf("## Application terminated, r = %lu\n",
534 r & ~EFI_ERROR_MASK);
Alexander Grafb9939332016-03-10 00:27:20 +0100535
xypron.glpk@gmx.de1da1bac2017-07-04 23:15:23 +0200536 if (r != EFI_SUCCESS)
537 return 1;
538 else
539 return 0;
Alexander Grafb9939332016-03-10 00:27:20 +0100540}
541
542#ifdef CONFIG_SYS_LONGHELP
543static char bootefi_help_text[] =
Alexander Graf1c398092016-04-14 16:07:53 +0200544 "<image address> [fdt address]\n"
545 " - boot EFI payload stored at address <image address>.\n"
546 " If specified, the device tree located at <fdt address> gets\n"
Simon Glassc7ae3df2016-11-07 08:47:08 -0700547 " exposed as EFI configuration table.\n"
548#ifdef CONFIG_CMD_BOOTEFI_HELLO
Heinrich Schuchardt623b3a52017-09-15 10:06:11 +0200549 "bootefi hello\n"
550 " - boot a sample Hello World application stored within U-Boot\n"
551#endif
552#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
Heinrich Schuchardtbc4f9132018-03-03 15:29:03 +0100553 "bootefi selftest [fdt address]\n"
Heinrich Schuchardt623b3a52017-09-15 10:06:11 +0200554 " - boot an EFI selftest application stored within U-Boot\n"
Heinrich Schuchardtd78e40d2017-10-18 18:13:13 +0200555 " Use environment variable efi_selftest to select a single test.\n"
556 " Use 'setenv efi_selftest list' to enumerate all tests.\n"
Simon Glassc7ae3df2016-11-07 08:47:08 -0700557#endif
Heinrich Schuchardtf623e072018-01-30 19:47:43 +0100558 "bootefi bootmgr [fdt addr]\n"
Rob Clark9975fe92017-09-13 18:05:38 -0400559 " - load and boot EFI payload based on BootOrder/BootXXXX variables.\n"
560 "\n"
561 " If specified, the device tree located at <fdt address> gets\n"
562 " exposed as EFI configuration table.\n";
Alexander Grafb9939332016-03-10 00:27:20 +0100563#endif
564
565U_BOOT_CMD(
Alexander Graf1c398092016-04-14 16:07:53 +0200566 bootefi, 3, 0, do_bootefi,
Sergey Kubushyn92dfd922016-06-07 11:14:31 -0700567 "Boots an EFI payload from memory",
Alexander Grafb9939332016-03-10 00:27:20 +0100568 bootefi_help_text
569);
Alexander Graf0f4060e2016-03-04 01:10:14 +0100570
Alexander Grafc07ad7c2016-04-11 16:16:19 +0200571void efi_set_bootdev(const char *dev, const char *devnr, const char *path)
Alexander Graf0f4060e2016-03-04 01:10:14 +0100572{
Rob Clark95c55532017-09-13 18:05:33 -0400573 char filename[32] = { 0 }; /* dp->str is u16[32] long */
574 char *s;
Alexander Graf0f4060e2016-03-04 01:10:14 +0100575
Rob Clark95c55532017-09-13 18:05:33 -0400576 if (strcmp(dev, "Net")) {
577 struct blk_desc *desc;
Heinrich Schuchardt2db1eba2018-04-03 22:40:55 +0200578 disk_partition_t fs_partition;
Rob Clark95c55532017-09-13 18:05:33 -0400579 int part;
580
Heinrich Schuchardt2db1eba2018-04-03 22:40:55 +0200581 part = blk_get_device_part_str(dev, devnr, &desc, &fs_partition,
582 1);
583 if (part < 0)
Stefan Roese8300be62017-11-17 08:47:09 +0100584 return;
Rob Clark95c55532017-09-13 18:05:33 -0400585
586 bootefi_device_path = efi_dp_from_part(desc, part);
587 } else {
Joe Hershberger092f2f32018-04-13 15:26:39 -0500588#ifdef CONFIG_NET
Rob Clark95c55532017-09-13 18:05:33 -0400589 bootefi_device_path = efi_dp_from_eth();
Alexander Graff9d334b2016-08-05 14:49:53 +0200590#endif
Alexander Graff9d334b2016-08-05 14:49:53 +0200591 }
592
Rob Clark9975fe92017-09-13 18:05:38 -0400593 if (!path)
594 return;
595
Alexander Graf49271662016-07-21 01:44:46 +0200596 if (strcmp(dev, "Net")) {
597 /* Add leading / to fs paths, because they're absolute */
Rob Clark95c55532017-09-13 18:05:33 -0400598 snprintf(filename, sizeof(filename), "/%s", path);
Alexander Graf49271662016-07-21 01:44:46 +0200599 } else {
Rob Clark95c55532017-09-13 18:05:33 -0400600 snprintf(filename, sizeof(filename), "%s", path);
Alexander Graf49271662016-07-21 01:44:46 +0200601 }
Rob Clark3e433e92017-07-24 07:59:09 -0400602 /* DOS style file path: */
Rob Clark95c55532017-09-13 18:05:33 -0400603 s = filename;
Rob Clark3e433e92017-07-24 07:59:09 -0400604 while ((s = strchr(s, '/')))
605 *s++ = '\\';
Rob Clark95c55532017-09-13 18:05:33 -0400606 bootefi_image_path = efi_dp_from_file(NULL, 0, filename);
Alexander Graf0f4060e2016-03-04 01:10:14 +0100607}