1b9939336SAlexander Graf /* 2b9939336SAlexander Graf * EFI application loader 3b9939336SAlexander Graf * 4b9939336SAlexander Graf * Copyright (c) 2016 Alexander Graf 5b9939336SAlexander Graf * 6b9939336SAlexander Graf * SPDX-License-Identifier: GPL-2.0+ 7b9939336SAlexander Graf */ 8b9939336SAlexander Graf 9d78e40d6SHeinrich Schuchardt #include <charset.h> 10b9939336SAlexander Graf #include <common.h> 11b9939336SAlexander Graf #include <command.h> 129d922450SSimon Glass #include <dm.h> 13b9939336SAlexander Graf #include <efi_loader.h> 14d78e40d6SHeinrich Schuchardt #include <efi_selftest.h> 15b9939336SAlexander Graf #include <errno.h> 16b08c8c48SMasahiro Yamada #include <linux/libfdt.h> 17b08c8c48SMasahiro Yamada #include <linux/libfdt_env.h> 18ad0c1a3dSAlexander Graf #include <memalign.h> 190d9d501fSAlexander Graf #include <asm/global_data.h> 20e275458cSSimon Glass #include <asm-generic/sections.h> 21e275458cSSimon Glass #include <linux/linkage.h> 220d9d501fSAlexander Graf 230d9d501fSAlexander Graf DECLARE_GLOBAL_DATA_PTR; 24b9939336SAlexander Graf 25fc225e60SHeinrich Schuchardt #define OBJ_LIST_NOT_INITIALIZED 1 26fc225e60SHeinrich Schuchardt 27fc225e60SHeinrich Schuchardt static efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED; 287cbc1241SHeinrich Schuchardt 2995c5553eSRob Clark static struct efi_device_path *bootefi_image_path; 3095c5553eSRob Clark static struct efi_device_path *bootefi_device_path; 31b9939336SAlexander Graf 327cbc1241SHeinrich Schuchardt /* Initialize and populate EFI object list */ 33fc225e60SHeinrich Schuchardt efi_status_t efi_init_obj_list(void) 347cbc1241SHeinrich Schuchardt { 35fc225e60SHeinrich Schuchardt efi_status_t ret = EFI_SUCCESS; 36fc225e60SHeinrich Schuchardt 37098a6cddSHeinrich Schuchardt /* Initialize once only */ 38fc225e60SHeinrich Schuchardt if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED) 39fc225e60SHeinrich Schuchardt return efi_obj_list_initialized; 407cbc1241SHeinrich Schuchardt 4105ef48a2SHeinrich Schuchardt /* Initialize EFI driver uclass */ 42fc225e60SHeinrich Schuchardt ret = efi_driver_init(); 43fc225e60SHeinrich Schuchardt if (ret != EFI_SUCCESS) 44fc225e60SHeinrich Schuchardt goto out; 4505ef48a2SHeinrich Schuchardt 46fc225e60SHeinrich Schuchardt ret = efi_console_register(); 47fc225e60SHeinrich Schuchardt if (ret != EFI_SUCCESS) 48fc225e60SHeinrich Schuchardt goto out; 497cbc1241SHeinrich Schuchardt #ifdef CONFIG_PARTITIONS 50fc225e60SHeinrich Schuchardt ret = efi_disk_register(); 51fc225e60SHeinrich Schuchardt if (ret != EFI_SUCCESS) 52fc225e60SHeinrich Schuchardt goto out; 537cbc1241SHeinrich Schuchardt #endif 547cbc1241SHeinrich Schuchardt #if defined(CONFIG_LCD) || defined(CONFIG_DM_VIDEO) 55fc225e60SHeinrich Schuchardt ret = efi_gop_register(); 56fc225e60SHeinrich Schuchardt if (ret != EFI_SUCCESS) 57fc225e60SHeinrich Schuchardt goto out; 587cbc1241SHeinrich Schuchardt #endif 593b3ea2c5SMichal Simek #ifdef CONFIG_CMD_NET 60fc225e60SHeinrich Schuchardt ret = efi_net_register(); 61fc225e60SHeinrich Schuchardt if (ret != EFI_SUCCESS) 62fc225e60SHeinrich Schuchardt goto out; 637cbc1241SHeinrich Schuchardt #endif 647cbc1241SHeinrich Schuchardt #ifdef CONFIG_GENERATE_SMBIOS_TABLE 65fc225e60SHeinrich Schuchardt ret = efi_smbios_register(); 66fc225e60SHeinrich Schuchardt if (ret != EFI_SUCCESS) 67fc225e60SHeinrich Schuchardt goto out; 687cbc1241SHeinrich Schuchardt #endif 69fc225e60SHeinrich Schuchardt ret = efi_watchdog_register(); 70fc225e60SHeinrich Schuchardt if (ret != EFI_SUCCESS) 71fc225e60SHeinrich Schuchardt goto out; 727cbc1241SHeinrich Schuchardt 737cbc1241SHeinrich Schuchardt /* Initialize EFI runtime services */ 74fc225e60SHeinrich Schuchardt ret = efi_reset_system_init(); 75fc225e60SHeinrich Schuchardt if (ret != EFI_SUCCESS) 76fc225e60SHeinrich Schuchardt goto out; 77fc225e60SHeinrich Schuchardt ret = efi_get_time_init(); 78fc225e60SHeinrich Schuchardt if (ret != EFI_SUCCESS) 79fc225e60SHeinrich Schuchardt goto out; 80fc225e60SHeinrich Schuchardt 81fc225e60SHeinrich Schuchardt out: 82fc225e60SHeinrich Schuchardt efi_obj_list_initialized = ret; 83fc225e60SHeinrich Schuchardt return ret; 847cbc1241SHeinrich Schuchardt } 857cbc1241SHeinrich Schuchardt 86d78e40d6SHeinrich Schuchardt /* 87d78e40d6SHeinrich Schuchardt * Set the load options of an image from an environment variable. 88d78e40d6SHeinrich Schuchardt * 89d78e40d6SHeinrich Schuchardt * @loaded_image_info: the image 90d78e40d6SHeinrich Schuchardt * @env_var: name of the environment variable 91d78e40d6SHeinrich Schuchardt */ 92d78e40d6SHeinrich Schuchardt static void set_load_options(struct efi_loaded_image *loaded_image_info, 93d78e40d6SHeinrich Schuchardt const char *env_var) 94d78e40d6SHeinrich Schuchardt { 95d78e40d6SHeinrich Schuchardt size_t size; 96d78e40d6SHeinrich Schuchardt const char *env = env_get(env_var); 97d78e40d6SHeinrich Schuchardt 98d78e40d6SHeinrich Schuchardt loaded_image_info->load_options = NULL; 99d78e40d6SHeinrich Schuchardt loaded_image_info->load_options_size = 0; 100d78e40d6SHeinrich Schuchardt if (!env) 101d78e40d6SHeinrich Schuchardt return; 102d78e40d6SHeinrich Schuchardt size = strlen(env) + 1; 103d78e40d6SHeinrich Schuchardt loaded_image_info->load_options = calloc(size, sizeof(u16)); 104d78e40d6SHeinrich Schuchardt if (!loaded_image_info->load_options) { 105d78e40d6SHeinrich Schuchardt printf("ERROR: Out of memory\n"); 106d78e40d6SHeinrich Schuchardt return; 107d78e40d6SHeinrich Schuchardt } 108d78e40d6SHeinrich Schuchardt utf8_to_utf16(loaded_image_info->load_options, (u8 *)env, size); 109d78e40d6SHeinrich Schuchardt loaded_image_info->load_options_size = size * 2; 110d78e40d6SHeinrich Schuchardt } 111d78e40d6SHeinrich Schuchardt 1120d9d501fSAlexander Graf static void *copy_fdt(void *fdt) 1130d9d501fSAlexander Graf { 1140d9d501fSAlexander Graf u64 fdt_size = fdt_totalsize(fdt); 115ad0c1a3dSAlexander Graf unsigned long fdt_ram_start = -1L, fdt_pages; 116ad0c1a3dSAlexander Graf u64 new_fdt_addr; 1170d9d501fSAlexander Graf void *new_fdt; 118ad0c1a3dSAlexander Graf int i; 1190d9d501fSAlexander Graf 120ad0c1a3dSAlexander Graf for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { 121ad0c1a3dSAlexander Graf u64 ram_start = gd->bd->bi_dram[i].start; 122ad0c1a3dSAlexander Graf u64 ram_size = gd->bd->bi_dram[i].size; 1230d9d501fSAlexander Graf 124ad0c1a3dSAlexander Graf if (!ram_size) 125ad0c1a3dSAlexander Graf continue; 126ad0c1a3dSAlexander Graf 127ad0c1a3dSAlexander Graf if (ram_start < fdt_ram_start) 128ad0c1a3dSAlexander Graf fdt_ram_start = ram_start; 129ad0c1a3dSAlexander Graf } 130ad0c1a3dSAlexander Graf 131ad0c1a3dSAlexander Graf /* Give us at least 4kb breathing room */ 132a44bffccSxypron.glpk@gmx.de fdt_size = ALIGN(fdt_size + 4096, EFI_PAGE_SIZE); 133ad0c1a3dSAlexander Graf fdt_pages = fdt_size >> EFI_PAGE_SHIFT; 134ad0c1a3dSAlexander Graf 135ad0c1a3dSAlexander Graf /* Safe fdt location is at 128MB */ 136ad0c1a3dSAlexander Graf new_fdt_addr = fdt_ram_start + (128 * 1024 * 1024) + fdt_size; 13717ff6f02SHeinrich Schuchardt if (efi_allocate_pages(1, EFI_RUNTIME_SERVICES_DATA, fdt_pages, 138ad0c1a3dSAlexander Graf &new_fdt_addr) != EFI_SUCCESS) { 139ad0c1a3dSAlexander Graf /* If we can't put it there, put it somewhere */ 140a44bffccSxypron.glpk@gmx.de new_fdt_addr = (ulong)memalign(EFI_PAGE_SIZE, fdt_size); 14117ff6f02SHeinrich Schuchardt if (efi_allocate_pages(1, EFI_RUNTIME_SERVICES_DATA, fdt_pages, 14285a6e9b3SAlexander Graf &new_fdt_addr) != EFI_SUCCESS) { 14385a6e9b3SAlexander Graf printf("ERROR: Failed to reserve space for FDT\n"); 14485a6e9b3SAlexander Graf return NULL; 145ad0c1a3dSAlexander Graf } 14685a6e9b3SAlexander Graf } 14785a6e9b3SAlexander Graf 148ad0c1a3dSAlexander Graf new_fdt = (void*)(ulong)new_fdt_addr; 1490d9d501fSAlexander Graf memcpy(new_fdt, fdt, fdt_totalsize(fdt)); 1500d9d501fSAlexander Graf fdt_set_totalsize(new_fdt, fdt_size); 1510d9d501fSAlexander Graf 1520d9d501fSAlexander Graf return new_fdt; 1530d9d501fSAlexander Graf } 1540d9d501fSAlexander Graf 1553eb0841bSHeinrich Schuchardt static efi_status_t efi_do_enter( 1562074f700SHeinrich Schuchardt efi_handle_t image_handle, struct efi_system_table *st, 157c6fa5df6SAlexander Graf EFIAPI efi_status_t (*entry)( 158c6fa5df6SAlexander Graf efi_handle_t image_handle, 159b06d8ac3Sxypron.glpk@gmx.de struct efi_system_table *st)) 160b06d8ac3Sxypron.glpk@gmx.de { 161b06d8ac3Sxypron.glpk@gmx.de efi_status_t ret = EFI_LOAD_ERROR; 162b06d8ac3Sxypron.glpk@gmx.de 163b06d8ac3Sxypron.glpk@gmx.de if (entry) 164b06d8ac3Sxypron.glpk@gmx.de ret = entry(image_handle, st); 165b06d8ac3Sxypron.glpk@gmx.de st->boottime->exit(image_handle, ret, 0, NULL); 166b06d8ac3Sxypron.glpk@gmx.de return ret; 167b06d8ac3Sxypron.glpk@gmx.de } 168b06d8ac3Sxypron.glpk@gmx.de 169ec6617c3SAlison Wang #ifdef CONFIG_ARM64 170c6fa5df6SAlexander Graf static efi_status_t efi_run_in_el2(EFIAPI efi_status_t (*entry)( 1712074f700SHeinrich Schuchardt efi_handle_t image_handle, struct efi_system_table *st), 1722074f700SHeinrich Schuchardt efi_handle_t image_handle, struct efi_system_table *st) 173ec6617c3SAlison Wang { 174ec6617c3SAlison Wang /* Enable caches again */ 175ec6617c3SAlison Wang dcache_enable(); 176ec6617c3SAlison Wang 177b06d8ac3Sxypron.glpk@gmx.de return efi_do_enter(image_handle, st, entry); 178ec6617c3SAlison Wang } 179ec6617c3SAlison Wang #endif 180ec6617c3SAlison Wang 181bc4f9133SHeinrich Schuchardt static efi_status_t efi_install_fdt(void *fdt) 182bc4f9133SHeinrich Schuchardt { 183bc4f9133SHeinrich Schuchardt bootm_headers_t img = { 0 }; 184bc4f9133SHeinrich Schuchardt ulong fdt_pages, fdt_size, fdt_start, fdt_end; 185bc4f9133SHeinrich Schuchardt efi_status_t ret; 186bc4f9133SHeinrich Schuchardt 187bc4f9133SHeinrich Schuchardt if (fdt_check_header(fdt)) { 188bc4f9133SHeinrich Schuchardt printf("ERROR: invalid device tree\n"); 189bc4f9133SHeinrich Schuchardt return EFI_INVALID_PARAMETER; 190bc4f9133SHeinrich Schuchardt } 191bc4f9133SHeinrich Schuchardt 192bc4f9133SHeinrich Schuchardt /* Prepare fdt for payload */ 193bc4f9133SHeinrich Schuchardt fdt = copy_fdt(fdt); 194bc4f9133SHeinrich Schuchardt if (!fdt) 195bc4f9133SHeinrich Schuchardt return EFI_OUT_OF_RESOURCES; 196bc4f9133SHeinrich Schuchardt 197bc4f9133SHeinrich Schuchardt if (image_setup_libfdt(&img, fdt, 0, NULL)) { 198bc4f9133SHeinrich Schuchardt printf("ERROR: failed to process device tree\n"); 199bc4f9133SHeinrich Schuchardt return EFI_LOAD_ERROR; 200bc4f9133SHeinrich Schuchardt } 201bc4f9133SHeinrich Schuchardt 202bc4f9133SHeinrich Schuchardt /* Link to it in the efi tables */ 203bc4f9133SHeinrich Schuchardt ret = efi_install_configuration_table(&efi_guid_fdt, fdt); 204bc4f9133SHeinrich Schuchardt if (ret != EFI_SUCCESS) 205bc4f9133SHeinrich Schuchardt return EFI_OUT_OF_RESOURCES; 206bc4f9133SHeinrich Schuchardt 207bc4f9133SHeinrich Schuchardt /* And reserve the space in the memory map */ 208bc4f9133SHeinrich Schuchardt fdt_start = ((ulong)fdt) & ~EFI_PAGE_MASK; 209bc4f9133SHeinrich Schuchardt fdt_end = ((ulong)fdt) + fdt_totalsize(fdt); 210bc4f9133SHeinrich Schuchardt fdt_size = (fdt_end - fdt_start) + EFI_PAGE_MASK; 211bc4f9133SHeinrich Schuchardt fdt_pages = fdt_size >> EFI_PAGE_SHIFT; 212bc4f9133SHeinrich Schuchardt /* Give a bootloader the chance to modify the device tree */ 213bc4f9133SHeinrich Schuchardt fdt_pages += 2; 214bc4f9133SHeinrich Schuchardt ret = efi_add_memory_map(fdt_start, fdt_pages, 215bc4f9133SHeinrich Schuchardt EFI_BOOT_SERVICES_DATA, true); 216bc4f9133SHeinrich Schuchardt return ret; 217bc4f9133SHeinrich Schuchardt } 218bc4f9133SHeinrich Schuchardt 219b9939336SAlexander Graf /* 220b9939336SAlexander Graf * Load an EFI payload into a newly allocated piece of memory, register all 221b9939336SAlexander Graf * EFI objects it would want to access and jump to it. 222b9939336SAlexander Graf */ 223bc4f9133SHeinrich Schuchardt static efi_status_t do_bootefi_exec(void *efi, 22495c5553eSRob Clark struct efi_device_path *device_path, 22595c5553eSRob Clark struct efi_device_path *image_path) 226b9939336SAlexander Graf { 22795c5553eSRob Clark struct efi_loaded_image loaded_image_info = {}; 22895c5553eSRob Clark struct efi_object loaded_image_info_obj = {}; 229bf19273eSRob Clark struct efi_device_path *memdp = NULL; 23045204b10SHeinrich Schuchardt efi_status_t ret; 23195c5553eSRob Clark 232c6fa5df6SAlexander Graf EFIAPI efi_status_t (*entry)(efi_handle_t image_handle, 233c6fa5df6SAlexander Graf struct efi_system_table *st); 234b9939336SAlexander Graf 235bf19273eSRob Clark /* 236bf19273eSRob Clark * Special case for efi payload not loaded from disk, such as 237bf19273eSRob Clark * 'bootefi hello' or for example payload loaded directly into 238bf19273eSRob Clark * memory via jtag/etc: 239bf19273eSRob Clark */ 240bf19273eSRob Clark if (!device_path && !image_path) { 241bf19273eSRob Clark printf("WARNING: using memory device/image path, this may confuse some payloads!\n"); 242bf19273eSRob Clark /* actual addresses filled in after efi_load_pe() */ 243bf19273eSRob Clark memdp = efi_dp_from_mem(0, 0, 0); 244bf19273eSRob Clark device_path = image_path = memdp; 245bf19273eSRob Clark } else { 246bf19273eSRob Clark assert(device_path && image_path); 247bf19273eSRob Clark } 248bf19273eSRob Clark 24995c5553eSRob Clark efi_setup_loaded_image(&loaded_image_info, &loaded_image_info_obj, 25095c5553eSRob Clark device_path, image_path); 25195c5553eSRob Clark 252b9939336SAlexander Graf /* 253b9939336SAlexander Graf * gd lives in a fixed register which may get clobbered while we execute 254b9939336SAlexander Graf * the payload. So save it here and restore it on every callback entry 255b9939336SAlexander Graf */ 256b9939336SAlexander Graf efi_save_gd(); 257b9939336SAlexander Graf 258b57f48a8SHeinrich Schuchardt /* Transfer environment variable bootargs as load options */ 259b57f48a8SHeinrich Schuchardt set_load_options(&loaded_image_info, "bootargs"); 260b9939336SAlexander Graf /* Load the EFI payload */ 261b9939336SAlexander Graf entry = efi_load_pe(efi, &loaded_image_info); 26295c5553eSRob Clark if (!entry) { 26345204b10SHeinrich Schuchardt ret = EFI_LOAD_ERROR; 26495c5553eSRob Clark goto exit; 26595c5553eSRob Clark } 26680a4800eSAlexander Graf 267bf19273eSRob Clark if (memdp) { 268bf19273eSRob Clark struct efi_device_path_memory *mdp = (void *)memdp; 269bf19273eSRob Clark mdp->memory_type = loaded_image_info.image_code_type; 270bf19273eSRob Clark mdp->start_address = (uintptr_t)loaded_image_info.image_base; 271bf19273eSRob Clark mdp->end_address = mdp->start_address + 272bf19273eSRob Clark loaded_image_info.image_size; 273bf19273eSRob Clark } 274bf19273eSRob Clark 275ad644e7cSRob Clark /* we don't support much: */ 276ad644e7cSRob Clark env_set("efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported", 277ad644e7cSRob Clark "{ro,boot}(blob)0000000000000000"); 278ad644e7cSRob Clark 279b9939336SAlexander Graf /* Call our payload! */ 280edcef3baSAlexander Graf debug("%s:%d Jumping to 0x%lx\n", __func__, __LINE__, (long)entry); 281a86aeaf2SAlexander Graf 282a86aeaf2SAlexander Graf if (setjmp(&loaded_image_info.exit_jmp)) { 28395c5553eSRob Clark ret = loaded_image_info.exit_status; 28495c5553eSRob Clark goto exit; 285a86aeaf2SAlexander Graf } 286a86aeaf2SAlexander Graf 28769bd459dSAlexander Graf #ifdef CONFIG_ARM64 28869bd459dSAlexander Graf /* On AArch64 we need to make sure we call our payload in < EL3 */ 28969bd459dSAlexander Graf if (current_el() == 3) { 29069bd459dSAlexander Graf smp_kick_all_cpus(); 29169bd459dSAlexander Graf dcache_disable(); /* flush cache before switch to EL2 */ 292ec6617c3SAlison Wang 293ec6617c3SAlison Wang /* Move into EL2 and keep running there */ 294ea54ad59SHeinrich Schuchardt armv8_switch_to_el2((ulong)entry, 295ea54ad59SHeinrich Schuchardt (ulong)&loaded_image_info_obj.handle, 2967c5e1febSAlison Wang (ulong)&systab, 0, (ulong)efi_run_in_el2, 297ec6617c3SAlison Wang ES_TO_AARCH64); 298ec6617c3SAlison Wang 299ec6617c3SAlison Wang /* Should never reach here, efi exits with longjmp */ 300ec6617c3SAlison Wang while (1) { } 30169bd459dSAlexander Graf } 30269bd459dSAlexander Graf #endif 30369bd459dSAlexander Graf 304ea54ad59SHeinrich Schuchardt ret = efi_do_enter(loaded_image_info_obj.handle, &systab, entry); 30595c5553eSRob Clark 30695c5553eSRob Clark exit: 30795c5553eSRob Clark /* image has returned, loaded-image obj goes *poof*: */ 30895c5553eSRob Clark list_del(&loaded_image_info_obj.link); 30995c5553eSRob Clark 31095c5553eSRob Clark return ret; 311b9939336SAlexander Graf } 312b9939336SAlexander Graf 313bc4f9133SHeinrich Schuchardt static int do_bootefi_bootmgr_exec(void) 3149975fe96SRob Clark { 3159975fe96SRob Clark struct efi_device_path *device_path, *file_path; 3169975fe96SRob Clark void *addr; 3179975fe96SRob Clark efi_status_t r; 3189975fe96SRob Clark 3199975fe96SRob Clark /* 3209975fe96SRob Clark * gd lives in a fixed register which may get clobbered while we execute 3219975fe96SRob Clark * the payload. So save it here and restore it on every callback entry 3229975fe96SRob Clark */ 3239975fe96SRob Clark efi_save_gd(); 3249975fe96SRob Clark 3259975fe96SRob Clark addr = efi_bootmgr_load(&device_path, &file_path); 3269975fe96SRob Clark if (!addr) 3279975fe96SRob Clark return 1; 3289975fe96SRob Clark 3299975fe96SRob Clark printf("## Starting EFI application at %p ...\n", addr); 330bc4f9133SHeinrich Schuchardt r = do_bootefi_exec(addr, device_path, file_path); 3319975fe96SRob Clark printf("## Application terminated, r = %lu\n", 3329975fe96SRob Clark r & ~EFI_ERROR_MASK); 3339975fe96SRob Clark 3349975fe96SRob Clark if (r != EFI_SUCCESS) 3359975fe96SRob Clark return 1; 3369975fe96SRob Clark 3379975fe96SRob Clark return 0; 3389975fe96SRob Clark } 3399975fe96SRob Clark 340b9939336SAlexander Graf /* Interpreter command to boot an arbitrary EFI image from memory */ 341b9939336SAlexander Graf static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 342b9939336SAlexander Graf { 343bc4f9133SHeinrich Schuchardt unsigned long addr; 344bc4f9133SHeinrich Schuchardt char *saddr; 3453eb0841bSHeinrich Schuchardt efi_status_t r; 346bc4f9133SHeinrich Schuchardt void *fdt_addr; 347b9939336SAlexander Graf 348fc225e60SHeinrich Schuchardt /* Initialize EFI drivers */ 349fc225e60SHeinrich Schuchardt r = efi_init_obj_list(); 350fc225e60SHeinrich Schuchardt if (r != EFI_SUCCESS) { 351fc225e60SHeinrich Schuchardt printf("Error: Cannot set up EFI drivers, r = %lu\n", 352fc225e60SHeinrich Schuchardt r & ~EFI_ERROR_MASK); 353fc225e60SHeinrich Schuchardt return CMD_RET_FAILURE; 354fc225e60SHeinrich Schuchardt } 355fc225e60SHeinrich Schuchardt 356b9939336SAlexander Graf if (argc < 2) 3573c1dcef6SBin Meng return CMD_RET_USAGE; 358bc4f9133SHeinrich Schuchardt 359bc4f9133SHeinrich Schuchardt if (argc > 2) { 360bc4f9133SHeinrich Schuchardt fdt_addr = (void *)simple_strtoul(argv[2], NULL, 16); 361bc4f9133SHeinrich Schuchardt if (!fdt_addr && *argv[2] != '0') 362bc4f9133SHeinrich Schuchardt return CMD_RET_USAGE; 363bc4f9133SHeinrich Schuchardt /* Install device tree */ 364bc4f9133SHeinrich Schuchardt r = efi_install_fdt(fdt_addr); 365bc4f9133SHeinrich Schuchardt if (r != EFI_SUCCESS) { 366bc4f9133SHeinrich Schuchardt printf("ERROR: failed to install device tree\n"); 367bc4f9133SHeinrich Schuchardt return CMD_RET_FAILURE; 368bc4f9133SHeinrich Schuchardt } 369bc4f9133SHeinrich Schuchardt } else { 370bc4f9133SHeinrich Schuchardt /* Remove device tree. EFI_NOT_FOUND can be ignored here */ 371bc4f9133SHeinrich Schuchardt efi_install_configuration_table(&efi_guid_fdt, NULL); 372bc4f9133SHeinrich Schuchardt printf("WARNING: booting without device tree\n"); 373bc4f9133SHeinrich Schuchardt } 374c7ae3dfdSSimon Glass #ifdef CONFIG_CMD_BOOTEFI_HELLO 375c7ae3dfdSSimon Glass if (!strcmp(argv[1], "hello")) { 3765e44489bSHeinrich Schuchardt ulong size = __efi_helloworld_end - __efi_helloworld_begin; 377c7ae3dfdSSimon Glass 37851c533fdSHeinrich Schuchardt saddr = env_get("loadaddr"); 37951c533fdSHeinrich Schuchardt if (saddr) 38051c533fdSHeinrich Schuchardt addr = simple_strtoul(saddr, NULL, 16); 38151c533fdSHeinrich Schuchardt else 382c7ae3dfdSSimon Glass addr = CONFIG_SYS_LOAD_ADDR; 3835e44489bSHeinrich Schuchardt memcpy((char *)addr, __efi_helloworld_begin, size); 384c7ae3dfdSSimon Glass } else 385c7ae3dfdSSimon Glass #endif 386623b3a57SHeinrich Schuchardt #ifdef CONFIG_CMD_BOOTEFI_SELFTEST 387623b3a57SHeinrich Schuchardt if (!strcmp(argv[1], "selftest")) { 3887aca68caSHeinrich Schuchardt struct efi_loaded_image loaded_image_info = {}; 3897aca68caSHeinrich Schuchardt struct efi_object loaded_image_info_obj = {}; 3907aca68caSHeinrich Schuchardt 391f972dc14SHeinrich Schuchardt /* Construct a dummy device path. */ 392f972dc14SHeinrich Schuchardt bootefi_device_path = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE, 393f972dc14SHeinrich Schuchardt (uintptr_t)&efi_selftest, 394f972dc14SHeinrich Schuchardt (uintptr_t)&efi_selftest); 395f972dc14SHeinrich Schuchardt bootefi_image_path = efi_dp_from_file(NULL, 0, "\\selftest"); 396f972dc14SHeinrich Schuchardt 3977aca68caSHeinrich Schuchardt efi_setup_loaded_image(&loaded_image_info, 3987aca68caSHeinrich Schuchardt &loaded_image_info_obj, 3997aca68caSHeinrich Schuchardt bootefi_device_path, bootefi_image_path); 400623b3a57SHeinrich Schuchardt /* 401623b3a57SHeinrich Schuchardt * gd lives in a fixed register which may get clobbered while we 402623b3a57SHeinrich Schuchardt * execute the payload. So save it here and restore it on every 403623b3a57SHeinrich Schuchardt * callback entry 404623b3a57SHeinrich Schuchardt */ 405623b3a57SHeinrich Schuchardt efi_save_gd(); 406623b3a57SHeinrich Schuchardt /* Initialize and populate EFI object list */ 407623b3a57SHeinrich Schuchardt efi_init_obj_list(); 408d78e40d6SHeinrich Schuchardt /* Transfer environment variable efi_selftest as load options */ 409d78e40d6SHeinrich Schuchardt set_load_options(&loaded_image_info, "efi_selftest"); 410d78e40d6SHeinrich Schuchardt /* Execute the test */ 411ea54ad59SHeinrich Schuchardt r = efi_selftest(loaded_image_info_obj.handle, &systab); 412c2b53902SHeinrich Schuchardt efi_restore_gd(); 413d78e40d6SHeinrich Schuchardt free(loaded_image_info.load_options); 414c2b53902SHeinrich Schuchardt list_del(&loaded_image_info_obj.link); 415c2b53902SHeinrich Schuchardt return r != EFI_SUCCESS; 416623b3a57SHeinrich Schuchardt } else 417623b3a57SHeinrich Schuchardt #endif 4189975fe96SRob Clark if (!strcmp(argv[1], "bootmgr")) { 419bc4f9133SHeinrich Schuchardt return do_bootefi_bootmgr_exec(); 4209975fe96SRob Clark } else { 421b9939336SAlexander Graf saddr = argv[1]; 422b9939336SAlexander Graf 423b9939336SAlexander Graf addr = simple_strtoul(saddr, NULL, 16); 42449db1cb8SHeinrich Schuchardt /* Check that a numeric value was passed */ 42549db1cb8SHeinrich Schuchardt if (!addr && *saddr != '0') 42649db1cb8SHeinrich Schuchardt return CMD_RET_USAGE; 427b9939336SAlexander Graf 428c7ae3dfdSSimon Glass } 4291c39809bSAlexander Graf 4305ee31bafSSimon Glass printf("## Starting EFI application at %08lx ...\n", addr); 431bc4f9133SHeinrich Schuchardt r = do_bootefi_exec((void *)addr, bootefi_device_path, 432bc4f9133SHeinrich Schuchardt bootefi_image_path); 4331da1bac4Sxypron.glpk@gmx.de printf("## Application terminated, r = %lu\n", 4341da1bac4Sxypron.glpk@gmx.de r & ~EFI_ERROR_MASK); 435b9939336SAlexander Graf 4361da1bac4Sxypron.glpk@gmx.de if (r != EFI_SUCCESS) 4371da1bac4Sxypron.glpk@gmx.de return 1; 4381da1bac4Sxypron.glpk@gmx.de else 4391da1bac4Sxypron.glpk@gmx.de return 0; 440b9939336SAlexander Graf } 441b9939336SAlexander Graf 442b9939336SAlexander Graf #ifdef CONFIG_SYS_LONGHELP 443b9939336SAlexander Graf static char bootefi_help_text[] = 4441c39809bSAlexander Graf "<image address> [fdt address]\n" 4451c39809bSAlexander Graf " - boot EFI payload stored at address <image address>.\n" 4461c39809bSAlexander Graf " If specified, the device tree located at <fdt address> gets\n" 447c7ae3dfdSSimon Glass " exposed as EFI configuration table.\n" 448c7ae3dfdSSimon Glass #ifdef CONFIG_CMD_BOOTEFI_HELLO 449623b3a57SHeinrich Schuchardt "bootefi hello\n" 450623b3a57SHeinrich Schuchardt " - boot a sample Hello World application stored within U-Boot\n" 451623b3a57SHeinrich Schuchardt #endif 452623b3a57SHeinrich Schuchardt #ifdef CONFIG_CMD_BOOTEFI_SELFTEST 453bc4f9133SHeinrich Schuchardt "bootefi selftest [fdt address]\n" 454623b3a57SHeinrich Schuchardt " - boot an EFI selftest application stored within U-Boot\n" 455d78e40d6SHeinrich Schuchardt " Use environment variable efi_selftest to select a single test.\n" 456d78e40d6SHeinrich Schuchardt " Use 'setenv efi_selftest list' to enumerate all tests.\n" 457c7ae3dfdSSimon Glass #endif 458f623e07fSHeinrich Schuchardt "bootefi bootmgr [fdt addr]\n" 4599975fe96SRob Clark " - load and boot EFI payload based on BootOrder/BootXXXX variables.\n" 4609975fe96SRob Clark "\n" 4619975fe96SRob Clark " If specified, the device tree located at <fdt address> gets\n" 4629975fe96SRob Clark " exposed as EFI configuration table.\n"; 463b9939336SAlexander Graf #endif 464b9939336SAlexander Graf 465b9939336SAlexander Graf U_BOOT_CMD( 4661c39809bSAlexander Graf bootefi, 3, 0, do_bootefi, 46792dfd922SSergey Kubushyn "Boots an EFI payload from memory", 468b9939336SAlexander Graf bootefi_help_text 469b9939336SAlexander Graf ); 4700f4060ebSAlexander Graf 471c07ad7c0SAlexander Graf void efi_set_bootdev(const char *dev, const char *devnr, const char *path) 4720f4060ebSAlexander Graf { 47395c5553eSRob Clark char filename[32] = { 0 }; /* dp->str is u16[32] long */ 47495c5553eSRob Clark char *s; 4750f4060ebSAlexander Graf 47695c5553eSRob Clark if (strcmp(dev, "Net")) { 47795c5553eSRob Clark struct blk_desc *desc; 478*2db1eba1SHeinrich Schuchardt disk_partition_t fs_partition; 47995c5553eSRob Clark int part; 48095c5553eSRob Clark 481*2db1eba1SHeinrich Schuchardt part = blk_get_device_part_str(dev, devnr, &desc, &fs_partition, 482*2db1eba1SHeinrich Schuchardt 1); 483*2db1eba1SHeinrich Schuchardt if (part < 0) 4848300be61SStefan Roese return; 485f9d334bdSAlexander Graf 48695c5553eSRob Clark bootefi_device_path = efi_dp_from_part(desc, part); 48795c5553eSRob Clark } else { 4883b3ea2c5SMichal Simek #ifdef CONFIG_CMD_NET 48995c5553eSRob Clark bootefi_device_path = efi_dp_from_eth(); 490f9d334bdSAlexander Graf #endif 491f9d334bdSAlexander Graf } 492f9d334bdSAlexander Graf 4939975fe96SRob Clark if (!path) 4949975fe96SRob Clark return; 4959975fe96SRob Clark 49649271666SAlexander Graf if (strcmp(dev, "Net")) { 49749271666SAlexander Graf /* Add leading / to fs paths, because they're absolute */ 49895c5553eSRob Clark snprintf(filename, sizeof(filename), "/%s", path); 49949271666SAlexander Graf } else { 50095c5553eSRob Clark snprintf(filename, sizeof(filename), "%s", path); 50149271666SAlexander Graf } 5023e433e96SRob Clark /* DOS style file path: */ 50395c5553eSRob Clark s = filename; 5043e433e96SRob Clark while ((s = strchr(s, '/'))) 5053e433e96SRob Clark *s++ = '\\'; 50695c5553eSRob Clark bootefi_image_path = efi_dp_from_file(NULL, 0, filename); 5070f4060ebSAlexander Graf } 508