X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=cmd%2Fbootefi.c;h=cd755b6bf44441a9d25ff0356a9d10066f9e4c56;hb=1612ff0dfba57b1002d8c7a54778eb553ace98f4;hp=78ff109835d4f9e8ffc9dfc4809cfece614ba5e5;hpb=6c7010b779ef29a40ed66acc414f65d2f4b75ced;p=platform%2Fkernel%2Fu-boot.git diff --git a/cmd/bootefi.c b/cmd/bootefi.c index 78ff109..cd755b6 100644 --- a/cmd/bootefi.c +++ b/cmd/bootefi.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * EFI application loader * * Copyright (c) 2016 Alexander Graf - * - * SPDX-License-Identifier: GPL-2.0+ */ #include @@ -13,43 +12,89 @@ #include #include #include -#include -#include +#include +#include #include #include #include +#include #include DECLARE_GLOBAL_DATA_PTR; -static uint8_t efi_obj_list_initalized; +#define OBJ_LIST_NOT_INITIALIZED 1 + +static efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED; static struct efi_device_path *bootefi_image_path; static struct efi_device_path *bootefi_device_path; /* Initialize and populate EFI object list */ -static void efi_init_obj_list(void) +efi_status_t efi_init_obj_list(void) { - efi_obj_list_initalized = 1; + efi_status_t ret = EFI_SUCCESS; + + /* Initialize once only */ + if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED) + return efi_obj_list_initialized; + + /* Initialize EFI driver uclass */ + ret = efi_driver_init(); + if (ret != EFI_SUCCESS) + goto out; - efi_console_register(); + ret = efi_console_register(); + if (ret != EFI_SUCCESS) + goto out; #ifdef CONFIG_PARTITIONS - efi_disk_register(); + ret = efi_disk_register(); + if (ret != EFI_SUCCESS) + goto out; #endif #if defined(CONFIG_LCD) || defined(CONFIG_DM_VIDEO) - efi_gop_register(); + ret = efi_gop_register(); + if (ret != EFI_SUCCESS) + goto out; #endif #ifdef CONFIG_NET - efi_net_register(); + ret = efi_net_register(); + if (ret != EFI_SUCCESS) + goto out; +#endif +#ifdef CONFIG_GENERATE_ACPI_TABLE + ret = efi_acpi_register(); + if (ret != EFI_SUCCESS) + goto out; #endif #ifdef CONFIG_GENERATE_SMBIOS_TABLE - efi_smbios_register(); + ret = efi_smbios_register(); + if (ret != EFI_SUCCESS) + goto out; #endif - efi_watchdog_register(); + ret = efi_watchdog_register(); + if (ret != EFI_SUCCESS) + goto out; /* Initialize EFI runtime services */ - efi_reset_system_init(); - efi_get_time_init(); + ret = efi_reset_system_init(); + if (ret != EFI_SUCCESS) + goto out; + ret = efi_get_time_init(); + if (ret != EFI_SUCCESS) + goto out; + +out: + efi_obj_list_initialized = ret; + return ret; +} + +/* + * Allow unaligned memory access. + * + * This routine is overridden by architectures providing this feature. + */ +void __weak allow_unaligned(void) +{ } /* @@ -103,11 +148,13 @@ static void *copy_fdt(void *fdt) /* Safe fdt location is at 128MB */ new_fdt_addr = fdt_ram_start + (128 * 1024 * 1024) + fdt_size; - if (efi_allocate_pages(1, EFI_BOOT_SERVICES_DATA, fdt_pages, + if (efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS, + EFI_RUNTIME_SERVICES_DATA, fdt_pages, &new_fdt_addr) != EFI_SUCCESS) { /* If we can't put it there, put it somewhere */ new_fdt_addr = (ulong)memalign(EFI_PAGE_SIZE, fdt_size); - if (efi_allocate_pages(1, EFI_BOOT_SERVICES_DATA, fdt_pages, + if (efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS, + EFI_RUNTIME_SERVICES_DATA, fdt_pages, &new_fdt_addr) != EFI_SUCCESS) { printf("ERROR: Failed to reserve space for FDT\n"); return NULL; @@ -122,9 +169,10 @@ static void *copy_fdt(void *fdt) } static efi_status_t efi_do_enter( - void *image_handle, struct efi_system_table *st, - asmlinkage ulong (*entry)(void *image_handle, - struct efi_system_table *st)) + efi_handle_t image_handle, struct efi_system_table *st, + EFIAPI efi_status_t (*entry)( + efi_handle_t image_handle, + struct efi_system_table *st)) { efi_status_t ret = EFI_LOAD_ERROR; @@ -135,9 +183,9 @@ static efi_status_t efi_do_enter( } #ifdef CONFIG_ARM64 -static efi_status_t efi_run_in_el2(asmlinkage ulong (*entry)( - void *image_handle, struct efi_system_table *st), - void *image_handle, struct efi_system_table *st) +static efi_status_t efi_run_in_el2(EFIAPI efi_status_t (*entry)( + efi_handle_t image_handle, struct efi_system_table *st), + efi_handle_t image_handle, struct efi_system_table *st) { /* Enable caches again */ dcache_enable(); @@ -146,24 +194,86 @@ static efi_status_t efi_run_in_el2(asmlinkage ulong (*entry)( } #endif +/* Carve out DT reserved memory ranges */ +static efi_status_t efi_carve_out_dt_rsv(void *fdt) +{ + int nr_rsv, i; + uint64_t addr, size, pages; + + nr_rsv = fdt_num_mem_rsv(fdt); + + /* Look for an existing entry and add it to the efi mem map. */ + for (i = 0; i < nr_rsv; i++) { + if (fdt_get_mem_rsv(fdt, i, &addr, &size) != 0) + continue; + + pages = ALIGN(size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT; + efi_add_memory_map(addr, pages, EFI_RESERVED_MEMORY_TYPE, + false); + } + + return EFI_SUCCESS; +} + +static efi_status_t efi_install_fdt(void *fdt) +{ + bootm_headers_t img = { 0 }; + ulong fdt_pages, fdt_size, fdt_start, fdt_end; + efi_status_t ret; + + if (fdt_check_header(fdt)) { + printf("ERROR: invalid device tree\n"); + return EFI_INVALID_PARAMETER; + } + + /* Prepare fdt for payload */ + fdt = copy_fdt(fdt); + if (!fdt) + return EFI_OUT_OF_RESOURCES; + + if (image_setup_libfdt(&img, fdt, 0, NULL)) { + printf("ERROR: failed to process device tree\n"); + return EFI_LOAD_ERROR; + } + + if (efi_carve_out_dt_rsv(fdt) != EFI_SUCCESS) { + printf("ERROR: failed to carve out memory\n"); + return EFI_LOAD_ERROR; + } + + /* Link to it in the efi tables */ + ret = efi_install_configuration_table(&efi_guid_fdt, fdt); + if (ret != EFI_SUCCESS) + return EFI_OUT_OF_RESOURCES; + + /* And reserve the space in the memory map */ + fdt_start = ((ulong)fdt) & ~EFI_PAGE_MASK; + fdt_end = ((ulong)fdt) + fdt_totalsize(fdt); + fdt_size = (fdt_end - fdt_start) + EFI_PAGE_MASK; + fdt_pages = fdt_size >> EFI_PAGE_SHIFT; + /* Give a bootloader the chance to modify the device tree */ + fdt_pages += 2; + ret = efi_add_memory_map(fdt_start, fdt_pages, + EFI_BOOT_SERVICES_DATA, true); + return ret; +} + /* * Load an EFI payload into a newly allocated piece of memory, register all * EFI objects it would want to access and jump to it. */ -static efi_status_t do_bootefi_exec(void *efi, void *fdt, +static efi_status_t do_bootefi_exec(void *efi, struct efi_device_path *device_path, struct efi_device_path *image_path) { struct efi_loaded_image loaded_image_info = {}; struct efi_object loaded_image_info_obj = {}; + struct efi_object mem_obj = {}; struct efi_device_path *memdp = NULL; - ulong ret; + efi_status_t ret; - ulong (*entry)(void *image_handle, struct efi_system_table *st) - asmlinkage; - ulong fdt_pages, fdt_size, fdt_start, fdt_end; - const efi_guid_t fdt_guid = EFI_FDT_GUID; - bootm_headers_t img = { 0 }; + EFIAPI efi_status_t (*entry)(efi_handle_t image_handle, + struct efi_system_table *st); /* * Special case for efi payload not loaded from disk, such as @@ -175,14 +285,16 @@ static efi_status_t do_bootefi_exec(void *efi, void *fdt, /* actual addresses filled in after efi_load_pe() */ memdp = efi_dp_from_mem(0, 0, 0); device_path = image_path = memdp; + efi_add_handle(&mem_obj); + + ret = efi_add_protocol(mem_obj.handle, &efi_guid_device_path, + device_path); + if (ret != EFI_SUCCESS) + goto exit; } else { assert(device_path && image_path); } - /* Initialize and populate EFI object list */ - if (!efi_obj_list_initalized) - efi_init_obj_list(); - efi_setup_loaded_image(&loaded_image_info, &loaded_image_info_obj, device_path, image_path); @@ -192,38 +304,12 @@ static efi_status_t do_bootefi_exec(void *efi, void *fdt, */ efi_save_gd(); - if (fdt && !fdt_check_header(fdt)) { - /* Prepare fdt for payload */ - fdt = copy_fdt(fdt); - - if (image_setup_libfdt(&img, fdt, 0, NULL)) { - printf("ERROR: Failed to process device tree\n"); - return -EINVAL; - } - - /* Link to it in the efi tables */ - efi_install_configuration_table(&fdt_guid, fdt); - - /* And reserve the space in the memory map */ - fdt_start = ((ulong)fdt) & ~EFI_PAGE_MASK; - fdt_end = ((ulong)fdt) + fdt_totalsize(fdt); - fdt_size = (fdt_end - fdt_start) + EFI_PAGE_MASK; - fdt_pages = fdt_size >> EFI_PAGE_SHIFT; - /* Give a bootloader the chance to modify the device tree */ - fdt_pages += 2; - efi_add_memory_map(fdt_start, fdt_pages, - EFI_BOOT_SERVICES_DATA, true); - } else { - printf("WARNING: Invalid device tree, expect boot to fail\n"); - efi_install_configuration_table(&fdt_guid, NULL); - } - /* Transfer environment variable bootargs as load options */ set_load_options(&loaded_image_info, "bootargs"); /* Load the EFI payload */ entry = efi_load_pe(efi, &loaded_image_info); if (!entry) { - ret = -ENOENT; + ret = EFI_LOAD_ERROR; goto exit; } @@ -269,20 +355,18 @@ static efi_status_t do_bootefi_exec(void *efi, void *fdt, exit: /* image has returned, loaded-image obj goes *poof*: */ list_del(&loaded_image_info_obj.link); + if (mem_obj.handle) + list_del(&mem_obj.link); return ret; } -static int do_bootefi_bootmgr_exec(unsigned long fdt_addr) +static int do_bootefi_bootmgr_exec(void) { struct efi_device_path *device_path, *file_path; void *addr; efi_status_t r; - /* Initialize and populate EFI object list */ - if (!efi_obj_list_initalized) - efi_init_obj_list(); - /* * gd lives in a fixed register which may get clobbered while we execute * the payload. So save it here and restore it on every callback entry @@ -294,7 +378,7 @@ static int do_bootefi_bootmgr_exec(unsigned long fdt_addr) return 1; printf("## Starting EFI application at %p ...\n", addr); - r = do_bootefi_exec(addr, (void *)fdt_addr, device_path, file_path); + r = do_bootefi_exec(addr, device_path, file_path); printf("## Application terminated, r = %lu\n", r & ~EFI_ERROR_MASK); @@ -307,12 +391,40 @@ static int do_bootefi_bootmgr_exec(unsigned long fdt_addr) /* Interpreter command to boot an arbitrary EFI image from memory */ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { - char *saddr, *sfdt; - unsigned long addr, fdt_addr = 0; + unsigned long addr; + char *saddr; efi_status_t r; + void *fdt_addr; + + /* Allow unaligned memory access */ + allow_unaligned(); + + /* Initialize EFI drivers */ + r = efi_init_obj_list(); + if (r != EFI_SUCCESS) { + printf("Error: Cannot set up EFI drivers, r = %lu\n", + r & ~EFI_ERROR_MASK); + return CMD_RET_FAILURE; + } if (argc < 2) return CMD_RET_USAGE; + + if (argc > 2) { + fdt_addr = (void *)simple_strtoul(argv[2], NULL, 16); + if (!fdt_addr && *argv[2] != '0') + return CMD_RET_USAGE; + /* Install device tree */ + r = efi_install_fdt(fdt_addr); + if (r != EFI_SUCCESS) { + printf("ERROR: failed to install device tree\n"); + return CMD_RET_FAILURE; + } + } else { + /* Remove device tree. EFI_NOT_FOUND can be ignored here */ + efi_install_configuration_table(&efi_guid_fdt, NULL); + printf("WARNING: booting without device tree\n"); + } #ifdef CONFIG_CMD_BOOTEFI_HELLO if (!strcmp(argv[1], "hello")) { ulong size = __efi_helloworld_end - __efi_helloworld_begin; @@ -345,9 +457,6 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) * callback entry */ efi_save_gd(); - /* Initialize and populate EFI object list */ - if (!efi_obj_list_initalized) - efi_init_obj_list(); /* Transfer environment variable efi_selftest as load options */ set_load_options(&loaded_image_info, "efi_selftest"); /* Execute the test */ @@ -359,26 +468,20 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } else #endif if (!strcmp(argv[1], "bootmgr")) { - unsigned long fdt_addr = 0; - - if (argc > 2) - fdt_addr = simple_strtoul(argv[2], NULL, 16); - - return do_bootefi_bootmgr_exec(fdt_addr); + return do_bootefi_bootmgr_exec(); } else { saddr = argv[1]; addr = simple_strtoul(saddr, NULL, 16); + /* Check that a numeric value was passed */ + if (!addr && *saddr != '0') + return CMD_RET_USAGE; - if (argc > 2) { - sfdt = argv[2]; - fdt_addr = simple_strtoul(sfdt, NULL, 16); - } } printf("## Starting EFI application at %08lx ...\n", addr); - r = do_bootefi_exec((void *)addr, (void *)fdt_addr, - bootefi_device_path, bootefi_image_path); + r = do_bootefi_exec((void *)addr, bootefi_device_path, + bootefi_image_path); printf("## Application terminated, r = %lu\n", r & ~EFI_ERROR_MASK); @@ -399,12 +502,12 @@ static char bootefi_help_text[] = " - boot a sample Hello World application stored within U-Boot\n" #endif #ifdef CONFIG_CMD_BOOTEFI_SELFTEST - "bootefi selftest\n" + "bootefi selftest [fdt address]\n" " - boot an EFI selftest application stored within U-Boot\n" " Use environment variable efi_selftest to select a single test.\n" " Use 'setenv efi_selftest list' to enumerate all tests.\n" #endif - "bootmgr [fdt addr]\n" + "bootefi bootmgr [fdt addr]\n" " - load and boot EFI payload based on BootOrder/BootXXXX variables.\n" "\n" " If specified, the device tree located at gets\n" @@ -417,16 +520,6 @@ U_BOOT_CMD( bootefi_help_text ); -static int parse_partnum(const char *devnr) -{ - const char *str = strchr(devnr, ':'); - if (str) { - str++; - return simple_strtoul(str, NULL, 16); - } - return 0; -} - void efi_set_bootdev(const char *dev, const char *devnr, const char *path) { char filename[32] = { 0 }; /* dp->str is u16[32] long */ @@ -434,12 +527,13 @@ void efi_set_bootdev(const char *dev, const char *devnr, const char *path) if (strcmp(dev, "Net")) { struct blk_desc *desc; + disk_partition_t fs_partition; int part; - desc = blk_get_dev(dev, simple_strtol(devnr, NULL, 10)); - if (!desc) + part = blk_get_device_part_str(dev, devnr, &desc, &fs_partition, + 1); + if (part < 0) return; - part = parse_partnum(devnr); bootefi_device_path = efi_dp_from_part(desc, part); } else {