*/
#include <common.h>
-#include <bootm.h>
#include <charset.h>
#include <command.h>
#include <dm.h>
#include <efi_loader.h>
#include <efi_selftest.h>
+#include <env.h>
#include <errno.h>
+#include <image.h>
+#include <malloc.h>
#include <linux/libfdt.h>
#include <linux/libfdt_env.h>
#include <mapmem.h>
#include <memalign.h>
-#include <asm/global_data.h>
#include <asm-generic/sections.h>
-#include <asm-generic/unaligned.h>
#include <linux/linkage.h>
DECLARE_GLOBAL_DATA_PTR;
static struct efi_device_path *bootefi_image_path;
static struct efi_device_path *bootefi_device_path;
-/*
- * Allow unaligned memory access.
- *
- * This routine is overridden by architectures providing this feature.
- */
-void __weak allow_unaligned(void)
-{
-}
-
-/*
+/**
* Set the load options of an image from an environment variable.
*
- * @handle: the image handle
- * @env_var: name of the environment variable
- * Return: status code
+ * @handle: the image handle
+ * @env_var: name of the environment variable
+ * @load_options: pointer to load options (output)
+ * Return: status code
*/
-static efi_status_t set_load_options(efi_handle_t handle, const char *env_var)
+static efi_status_t set_load_options(efi_handle_t handle, const char *env_var,
+ u16 **load_options)
{
struct efi_loaded_image *loaded_image_info;
size_t size;
u16 *pos;
efi_status_t ret;
+ *load_options = NULL;
ret = EFI_CALL(systab.boottime->open_protocol(
handle,
&efi_guid_loaded_image,
return EFI_OUT_OF_RESOURCES;
}
pos = loaded_image_info->load_options;
+ *load_options = pos;
utf8_utf16_strcpy(&pos, env);
loaded_image_info->load_options_size = size * 2;
efi_root, NULL));
}
+#if !CONFIG_IS_ENABLED(GENERATE_ACPI_TABLE)
+
/**
* copy_fdt() - Copy the device tree to a new location available to EFI
*
new_fdt_addr = (uintptr_t)map_sysmem(fdt_ram_start + 0x7f00000 +
fdt_size, 0);
ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
- EFI_BOOT_SERVICES_DATA, fdt_pages,
+ EFI_ACPI_RECLAIM_MEMORY, fdt_pages,
&new_fdt_addr);
if (ret != EFI_SUCCESS) {
/* If we can't put it there, put it somewhere */
new_fdt_addr = (ulong)memalign(EFI_PAGE_SIZE, fdt_size);
ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
- EFI_BOOT_SERVICES_DATA, fdt_pages,
+ EFI_ACPI_RECLAIM_MEMORY, fdt_pages,
&new_fdt_addr);
if (ret != EFI_SUCCESS) {
printf("ERROR: Failed to reserve space for FDT\n");
return ret;
}
-/*
+static void efi_reserve_memory(u64 addr, u64 size)
+{
+ /* Convert from sandbox address space. */
+ addr = (uintptr_t)map_sysmem(addr, 0);
+ if (efi_add_memory_map(addr, size,
+ EFI_RESERVED_MEMORY_TYPE) != EFI_SUCCESS)
+ printf("Reserved memory mapping failed addr %llx size %llx\n",
+ addr, size);
+}
+
+/**
* efi_carve_out_dt_rsv() - Carve out DT reserved memory ranges
*
* The mem_rsv entries of the FDT are added to the memory map. Any failures are
static void efi_carve_out_dt_rsv(void *fdt)
{
int nr_rsv, i;
- uint64_t addr, size, pages;
+ u64 addr, size;
+ int nodeoffset, subnode;
nr_rsv = fdt_num_mem_rsv(fdt);
for (i = 0; i < nr_rsv; i++) {
if (fdt_get_mem_rsv(fdt, i, &addr, &size) != 0)
continue;
+ efi_reserve_memory(addr, size);
+ }
- /* Convert from sandbox address space. */
- addr = (uintptr_t)map_sysmem(addr, 0);
+ /* process reserved-memory */
+ nodeoffset = fdt_subnode_offset(fdt, 0, "reserved-memory");
+ if (nodeoffset >= 0) {
+ subnode = fdt_first_subnode(fdt, nodeoffset);
+ while (subnode >= 0) {
+ fdt_addr_t fdt_addr;
+ fdt_size_t fdt_size;
+
+ /* check if this subnode has a reg property */
+ fdt_addr = fdtdec_get_addr_size_auto_parent(
+ fdt, nodeoffset, subnode,
+ "reg", 0, &fdt_size, false);
+ /*
+ * The /reserved-memory node may have children with
+ * a size instead of a reg property.
+ */
+ if (addr != FDT_ADDR_T_NONE &&
+ fdtdec_get_is_enabled(fdt, subnode))
+ efi_reserve_memory(fdt_addr, fdt_size);
+ subnode = fdt_next_subnode(fdt, subnode);
+ }
+ }
+}
- pages = efi_size_in_pages(size + (addr & EFI_PAGE_MASK));
- addr &= ~EFI_PAGE_MASK;
- if (!efi_add_memory_map(addr, pages, EFI_RESERVED_MEMORY_TYPE,
- false))
- printf("FDT memrsv map %d: Failed to add to map\n", i);
+/**
+ * get_config_table() - get configuration table
+ *
+ * @guid: GUID of the configuration table
+ * Return: pointer to configuration table or NULL
+ */
+static void *get_config_table(const efi_guid_t *guid)
+{
+ size_t i;
+
+ for (i = 0; i < systab.nr_tables; i++) {
+ if (!guidcmp(guid, &systab.tables[i].guid))
+ return systab.tables[i].table;
}
+ return NULL;
}
+#endif /* !CONFIG_IS_ENABLED(GENERATE_ACPI_TABLE) */
+
/**
- * efi_install_fdt() - install fdt passed by a command argument
- * @fdt_opt: pointer to argument
- * Return: status code
+ * efi_install_fdt() - install device tree
+ *
+ * If fdt is not EFI_FDT_USE_INTERNAL, the device tree located at that memory
+ * address will will be installed as configuration table, otherwise the device
+ * tree located at the address indicated by environment variable fdt_addr or as
+ * fallback fdtcontroladdr will be used.
*
- * If specified, fdt will be installed as configuration table,
- * otherwise no fdt will be passed.
+ * On architectures using ACPI tables device trees shall not be installed as
+ * configuration table.
+ *
+ * @fdt: address of device tree or EFI_FDT_USE_INTERNAL to use the
+ * the hardware device tree as indicated by environment variable
+ * fdt_addr or as fallback the internal device tree as indicated by
+ * the environment variable fdtcontroladdr
+ * Return: status code
*/
-static efi_status_t efi_install_fdt(const char *fdt_opt)
+efi_status_t efi_install_fdt(void *fdt)
{
- unsigned long fdt_addr;
- void *fdt;
+ /*
+ * The EBBR spec requires that we have either an FDT or an ACPI table
+ * but not both.
+ */
+#if CONFIG_IS_ENABLED(GENERATE_ACPI_TABLE)
+ if (fdt) {
+ printf("ERROR: can't have ACPI table and device tree.\n");
+ return EFI_LOAD_ERROR;
+ }
+#else
bootm_headers_t img = { 0 };
efi_status_t ret;
- if (fdt_opt) {
- /* Install device tree */
+ if (fdt == EFI_FDT_USE_INTERNAL) {
+ const char *fdt_opt;
+ uintptr_t fdt_addr;
+
+ /* Look for device tree that is already installed */
+ if (get_config_table(&efi_guid_fdt))
+ return EFI_SUCCESS;
+ /* Check if there is a hardware device tree */
+ fdt_opt = env_get("fdt_addr");
+ /* Use our own device tree as fallback */
+ if (!fdt_opt) {
+ fdt_opt = env_get("fdtcontroladdr");
+ if (!fdt_opt) {
+ printf("ERROR: need device tree\n");
+ return EFI_NOT_FOUND;
+ }
+ }
fdt_addr = simple_strtoul(fdt_opt, NULL, 16);
- if (!fdt_addr && *fdt_opt != '0')
- return EFI_INVALID_PARAMETER;
-
- fdt = map_sysmem(fdt_addr, 0);
- if (fdt_check_header(fdt)) {
- printf("ERROR: invalid device tree\n");
- return EFI_INVALID_PARAMETER;
+ if (!fdt_addr) {
+ printf("ERROR: invalid $fdt_addr or $fdtcontroladdr\n");
+ return EFI_LOAD_ERROR;
}
+ fdt = map_sysmem(fdt_addr, 0);
+ }
- /* Create memory reservation as indicated by the device tree */
- efi_carve_out_dt_rsv(fdt);
+ /* Install device tree */
+ if (fdt_check_header(fdt)) {
+ printf("ERROR: invalid device tree\n");
+ return EFI_LOAD_ERROR;
+ }
- /* Prepare fdt for payload */
- ret = copy_fdt(&fdt);
- if (ret)
- return ret;
+ /* Prepare device tree for payload */
+ ret = copy_fdt(&fdt);
+ if (ret) {
+ printf("ERROR: out of memory\n");
+ 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 (image_setup_libfdt(&img, fdt, 0, NULL)) {
+ printf("ERROR: failed to process device tree\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) {
- printf("ERROR: failed to install device tree\n");
- return ret;
- }
- } else {
- /* Remove device tree. EFI_NOT_FOUND can be ignored here */
- efi_install_configuration_table(&efi_guid_fdt, NULL);
+ /* Create memory reservations as indicated by the device tree */
+ efi_carve_out_dt_rsv(fdt);
+
+ /* Install device tree as UEFI table */
+ ret = efi_install_configuration_table(&efi_guid_fdt, fdt);
+ if (ret != EFI_SUCCESS) {
+ printf("ERROR: failed to install device tree\n");
+ return ret;
}
+#endif /* GENERATE_ACPI_TABLE */
return EFI_SUCCESS;
}
/**
* do_bootefi_exec() - execute EFI binary
*
- * @efi: address of the binary
- * @device_path: path of the device from which the binary was loaded
- * @image_path: device path of the binary
+ * @handle: handle of loaded image
* Return: status code
*
* Load the EFI binary into a newly assigned memory unwinding the relocation
* information, install the loaded image protocol, and call the binary.
*/
-static efi_status_t do_bootefi_exec(void *efi,
- struct efi_device_path *device_path,
- struct efi_device_path *image_path)
+static efi_status_t do_bootefi_exec(efi_handle_t handle)
{
- efi_handle_t mem_handle = NULL;
- struct efi_device_path *memdp = NULL;
efi_status_t ret;
- struct efi_loaded_image_obj *image_obj = NULL;
- struct efi_loaded_image *loaded_image_info = NULL;
-
- /*
- * Special case for efi payload not loaded from disk, such as
- * 'bootefi hello' or for example payload loaded directly into
- * memory via JTAG, etc:
- */
- if (!device_path && !image_path) {
- printf("WARNING: using memory device/image path, this may confuse some payloads!\n");
- /* actual addresses filled in after efi_load_pe() */
- memdp = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE, 0, 0);
- device_path = image_path = memdp;
- /*
- * Grub expects that the device path of the loaded image is
- * installed on a handle.
- */
- ret = efi_create_handle(&mem_handle);
- if (ret != EFI_SUCCESS)
- return ret; /* TODO: leaks device_path */
- ret = efi_add_protocol(mem_handle, &efi_guid_device_path,
- device_path);
- if (ret != EFI_SUCCESS)
- goto err_add_protocol;
- } else {
- assert(device_path && image_path);
- }
-
- ret = efi_setup_loaded_image(device_path, image_path, &image_obj,
- &loaded_image_info);
- if (ret)
- goto err_prepare;
+ efi_uintn_t exit_data_size = 0;
+ u16 *exit_data = NULL;
+ u16 *load_options;
/* Transfer environment variable as load options */
- ret = set_load_options((efi_handle_t)image_obj, "bootargs");
+ ret = set_load_options(handle, "bootargs", &load_options);
if (ret != EFI_SUCCESS)
- goto err_prepare;
-
- /* Load the EFI payload */
- ret = efi_load_pe(image_obj, efi, loaded_image_info);
- if (ret != EFI_SUCCESS)
- goto err_prepare;
-
- if (memdp) {
- struct efi_device_path_memory *mdp = (void *)memdp;
- mdp->memory_type = loaded_image_info->image_code_type;
- mdp->start_address = (uintptr_t)loaded_image_info->image_base;
- mdp->end_address = mdp->start_address +
- loaded_image_info->image_size;
- }
-
- /* we don't support much: */
- env_set("efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported",
- "{ro,boot}(blob)0000000000000000");
+ return ret;
/* Call our payload! */
- debug("%s: Jumping to 0x%p\n", __func__, image_obj->entry);
- ret = EFI_CALL(efi_start_image(&image_obj->header, NULL, NULL));
+ ret = EFI_CALL(efi_start_image(handle, &exit_data_size, &exit_data));
+ printf("## Application terminated, r = %lu\n", ret & ~EFI_ERROR_MASK);
+ if (ret && exit_data) {
+ printf("## %ls\n", exit_data);
+ efi_free_pool(exit_data);
+ }
-err_prepare:
- /* image has returned, loaded-image obj goes *poof*: */
efi_restore_gd();
- free(loaded_image_info->load_options);
- efi_delete_handle(&image_obj->header);
-err_add_protocol:
- if (mem_handle)
- efi_delete_handle(mem_handle);
+ free(load_options);
return ret;
}
/**
- * do_efibootmgr() - execute EFI Boot Manager
+ * do_efibootmgr() - execute EFI boot manager
*
- * @fdt_opt: string of fdt start address
* Return: status code
- *
- * Execute EFI Boot Manager
*/
-static int do_efibootmgr(const char *fdt_opt)
+static int do_efibootmgr(void)
{
- struct efi_device_path *device_path, *file_path;
- void *addr;
+ efi_handle_t handle;
efi_status_t ret;
- /* Allow unaligned memory access */
- allow_unaligned();
+ ret = efi_bootmgr_load(&handle);
+ if (ret != EFI_SUCCESS) {
+ printf("EFI boot manager: Cannot load any image\n");
+ return CMD_RET_FAILURE;
+ }
- switch_to_non_secure_mode();
+ ret = do_bootefi_exec(handle);
- /* Initialize EFI drivers */
- ret = efi_init_obj_list();
- if (ret != EFI_SUCCESS) {
- printf("Error: Cannot initialize UEFI sub-system, r = %lu\n",
- ret & ~EFI_ERROR_MASK);
+ if (ret != EFI_SUCCESS)
return CMD_RET_FAILURE;
+
+ return CMD_RET_SUCCESS;
+}
+
+/**
+ * do_bootefi_image() - execute EFI binary
+ *
+ * Set up memory image for the binary to be loaded, prepare device path, and
+ * then call do_bootefi_exec() to execute it.
+ *
+ * @image_opt: string of image start address
+ * Return: status code
+ */
+static int do_bootefi_image(const char *image_opt)
+{
+ void *image_buf;
+ unsigned long addr, size;
+ const char *size_str;
+ efi_status_t ret;
+
+#ifdef CONFIG_CMD_BOOTEFI_HELLO
+ if (!strcmp(image_opt, "hello")) {
+ char *saddr;
+
+ saddr = env_get("loadaddr");
+ size = __efi_helloworld_end - __efi_helloworld_begin;
+
+ if (saddr)
+ addr = simple_strtoul(saddr, NULL, 16);
+ else
+ addr = CONFIG_SYS_LOAD_ADDR;
+
+ image_buf = map_sysmem(addr, size);
+ memcpy(image_buf, __efi_helloworld_begin, size);
+
+ efi_free_pool(bootefi_device_path);
+ efi_free_pool(bootefi_image_path);
+ bootefi_device_path = NULL;
+ bootefi_image_path = NULL;
+ } else
+#endif
+ {
+ size_str = env_get("filesize");
+ if (size_str)
+ size = simple_strtoul(size_str, NULL, 16);
+ else
+ size = 0;
+
+ addr = simple_strtoul(image_opt, NULL, 16);
+ /* Check that a numeric value was passed */
+ if (!addr && *image_opt != '0')
+ return CMD_RET_USAGE;
+
+ image_buf = map_sysmem(addr, size);
}
+ ret = efi_run_image(image_buf, size);
- ret = efi_install_fdt(fdt_opt);
- if (ret == EFI_INVALID_PARAMETER)
- return CMD_RET_USAGE;
- else if (ret != EFI_SUCCESS)
+ if (ret != EFI_SUCCESS)
return CMD_RET_FAILURE;
- addr = efi_bootmgr_load(&device_path, &file_path);
- if (!addr)
- return 1;
+ return CMD_RET_SUCCESS;
+}
- printf("## Starting EFI application at %p ...\n", addr);
- ret = do_bootefi_exec(addr, device_path, file_path);
- printf("## Application terminated, r = %lu\n",
- ret & ~EFI_ERROR_MASK);
+/**
+ * efi_run_image() - run loaded UEFI image
+ *
+ * @source_buffer: memory address of the UEFI image
+ * @source_size: size of the UEFI image
+ * Return: status code
+ */
+efi_status_t efi_run_image(void *source_buffer, efi_uintn_t source_size)
+{
+ efi_handle_t mem_handle = NULL, handle;
+ struct efi_device_path *file_path = NULL;
+ efi_status_t ret;
+ if (!bootefi_device_path || !bootefi_image_path) {
+ /*
+ * Special case for efi payload not loaded from disk,
+ * such as 'bootefi hello' or for example payload
+ * loaded directly into memory via JTAG, etc:
+ */
+ file_path = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE,
+ (uintptr_t)source_buffer,
+ source_size);
+ /*
+ * Make sure that device for device_path exist
+ * in load_image(). Otherwise, shell and grub will fail.
+ */
+ ret = efi_create_handle(&mem_handle);
+ if (ret != EFI_SUCCESS)
+ goto out;
+
+ ret = efi_add_protocol(mem_handle, &efi_guid_device_path,
+ file_path);
+ if (ret != EFI_SUCCESS)
+ goto out;
+ } else {
+ file_path = efi_dp_append(bootefi_device_path,
+ bootefi_image_path);
+ }
+
+ ret = EFI_CALL(efi_load_image(false, efi_root, file_path, source_buffer,
+ source_size, &handle));
if (ret != EFI_SUCCESS)
- return 1;
+ goto out;
+
+ ret = do_bootefi_exec(handle);
- return 0;
+out:
+ efi_delete_handle(mem_handle);
+ efi_free_pool(file_path);
+ return ret;
}
#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
struct efi_loaded_image **loaded_image_infop)
{
efi_status_t ret;
+ u16 *load_options;
ret = efi_setup_loaded_image(device_path, image_path, image_objp,
loaded_image_infop);
return ret;
/* Transfer environment variable as load options */
- return set_load_options((efi_handle_t)*image_objp, load_options_path);
+ return set_load_options((efi_handle_t)*image_objp, load_options_path,
+ &load_options);
}
/**
}
/**
- * do_efi_selftest() - execute EFI Selftest
+ * do_efi_selftest() - execute EFI selftest
*
- * @fdt_opt: string of fdt start address
* Return: status code
- *
- * Execute EFI Selftest
*/
-static int do_efi_selftest(const char *fdt_opt)
+static int do_efi_selftest(void)
{
struct efi_loaded_image_obj *image_obj;
struct efi_loaded_image *loaded_image_info;
efi_status_t ret;
- /* Allow unaligned memory access */
- allow_unaligned();
-
- switch_to_non_secure_mode();
-
- /* Initialize EFI drivers */
- ret = efi_init_obj_list();
- if (ret != EFI_SUCCESS) {
- printf("Error: Cannot initialize UEFI sub-system, r = %lu\n",
- ret & ~EFI_ERROR_MASK);
- return CMD_RET_FAILURE;
- }
-
- ret = efi_install_fdt(fdt_opt);
- if (ret == EFI_INVALID_PARAMETER)
- return CMD_RET_USAGE;
- else if (ret != EFI_SUCCESS)
- return CMD_RET_FAILURE;
-
ret = bootefi_test_prepare(&image_obj, &loaded_image_info,
"\\selftest", "efi_selftest");
if (ret != EFI_SUCCESS)
}
#endif /* CONFIG_CMD_BOOTEFI_SELFTEST */
-/* 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[])
+/**
+ * do_bootefi() - execute `bootefi` command
+ *
+ * @cmdtp: table entry describing command
+ * @flag: bitmap indicating how the command was invoked
+ * @argc: number of arguments
+ * @argv: command line arguments
+ * Return: status code
+ */
+static int do_bootefi(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
{
- unsigned long addr;
- char *saddr;
- efi_status_t r;
+ efi_status_t ret;
+ void *fdt;
if (argc < 2)
return CMD_RET_USAGE;
- if (!strcmp(argv[1], "bootmgr"))
- return do_efibootmgr(argc > 2 ? argv[2] : NULL);
-#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
- else if (!strcmp(argv[1], "selftest"))
- return do_efi_selftest(argc > 2 ? argv[2] : NULL);
-#endif
-
- /* Allow unaligned memory access */
- allow_unaligned();
-
- switch_to_non_secure_mode();
-
/* 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);
+ ret = efi_init_obj_list();
+ if (ret != EFI_SUCCESS) {
+ printf("Error: Cannot initialize UEFI sub-system, r = %lu\n",
+ ret & ~EFI_ERROR_MASK);
return CMD_RET_FAILURE;
}
- r = efi_install_fdt(argc > 2 ? argv[2] : NULL);
- if (r == EFI_INVALID_PARAMETER)
+ if (argc > 2) {
+ uintptr_t fdt_addr;
+
+ fdt_addr = simple_strtoul(argv[2], NULL, 16);
+ fdt = map_sysmem(fdt_addr, 0);
+ } else {
+ fdt = EFI_FDT_USE_INTERNAL;
+ }
+ ret = efi_install_fdt(fdt);
+ if (ret == EFI_INVALID_PARAMETER)
return CMD_RET_USAGE;
- else if (r != EFI_SUCCESS)
+ else if (ret != EFI_SUCCESS)
return CMD_RET_FAILURE;
-#ifdef CONFIG_CMD_BOOTEFI_HELLO
- if (!strcmp(argv[1], "hello")) {
- ulong size = __efi_helloworld_end - __efi_helloworld_begin;
-
- saddr = env_get("loadaddr");
- if (saddr)
- addr = simple_strtoul(saddr, NULL, 16);
- else
- addr = CONFIG_SYS_LOAD_ADDR;
- memcpy(map_sysmem(addr, size), __efi_helloworld_begin, size);
- } else
+ if (!strcmp(argv[1], "bootmgr"))
+ return do_efibootmgr();
+#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
+ else if (!strcmp(argv[1], "selftest"))
+ return do_efi_selftest();
#endif
- {
- saddr = argv[1];
- addr = simple_strtoul(saddr, NULL, 16);
- /* Check that a numeric value was passed */
- if (!addr && *saddr != '0')
- return CMD_RET_USAGE;
-
- }
-
- printf("## Starting EFI application at %08lx ...\n", addr);
- r = do_bootefi_exec(map_sysmem(addr, 0), bootefi_device_path,
- bootefi_image_path);
- printf("## Application terminated, r = %lu\n",
- r & ~EFI_ERROR_MASK);
-
- if (r != EFI_SUCCESS)
- return 1;
- else
- return 0;
+ return do_bootefi_image(argv[1]);
}
#ifdef CONFIG_SYS_LONGHELP
" Use environment variable efi_selftest to select a single test.\n"
" Use 'setenv efi_selftest list' to enumerate all tests.\n"
#endif
- "bootefi bootmgr [fdt addr]\n"
+ "bootefi bootmgr [fdt address]\n"
" - load and boot EFI payload based on BootOrder/BootXXXX variables.\n"
"\n"
" If specified, the device tree located at <fdt address> gets\n"
bootefi_help_text
);
+/**
+ * efi_set_bootdev() - set boot device
+ *
+ * This function is called when a file is loaded, e.g. via the 'load' command.
+ * We use the path to this file to inform the UEFI binary about the boot device.
+ *
+ * @dev: device, e.g. "MMC"
+ * @devnr: number of the device, e.g. "1:2"
+ * @path: path to file loaded
+ */
void efi_set_bootdev(const char *dev, const char *devnr, const char *path)
{
struct efi_device_path *device, *image;
ret = efi_dp_from_name(dev, devnr, path, &device, &image);
if (ret == EFI_SUCCESS) {
bootefi_device_path = device;
+ if (image) {
+ /* FIXME: image should not contain device */
+ struct efi_device_path *image_tmp = image;
+
+ efi_dp_split_file_path(image, &device, &image);
+ efi_free_pool(image_tmp);
+ }
bootefi_image_path = image;
} else {
bootefi_device_path = NULL;
projects / oweals / u-boot.git / blobdiff