* Copyright (c) 2016 Alexander Graf
*/
-#include <charset.h>
#include <common.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 <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>
-#ifdef CONFIG_ARMV7_NONSEC
-#include <asm/armv7.h>
-#include <asm/secure.h>
-#endif
-
DECLARE_GLOBAL_DATA_PTR;
-#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 */
-efi_status_t efi_init_obj_list(void)
-{
- efi_status_t ret = EFI_SUCCESS;
-
- /* Initialize once only */
- if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED)
- return efi_obj_list_initialized;
-
- /* Initialize system table */
- ret = efi_initialize_system_table();
- if (ret != EFI_SUCCESS)
- goto out;
-
- /* Initialize root node */
- ret = efi_root_node_register();
- if (ret != EFI_SUCCESS)
- goto out;
-
- /* Initialize EFI driver uclass */
- ret = efi_driver_init();
- if (ret != EFI_SUCCESS)
- goto out;
-
- ret = efi_console_register();
- if (ret != EFI_SUCCESS)
- goto out;
-#ifdef CONFIG_PARTITIONS
- ret = efi_disk_register();
- if (ret != EFI_SUCCESS)
- goto out;
-#endif
-#if defined(CONFIG_LCD) || defined(CONFIG_DM_VIDEO)
- ret = efi_gop_register();
- if (ret != EFI_SUCCESS)
- goto out;
-#endif
-#ifdef CONFIG_NET
- 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
- ret = efi_smbios_register();
- if (ret != EFI_SUCCESS)
- goto out;
-#endif
- ret = efi_watchdog_register();
- if (ret != EFI_SUCCESS)
- goto out;
-
- /* Initialize EFI runtime services */
- ret = efi_reset_system_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)
-{
-}
-
-/*
+/**
* Set the load options of an image from an environment variable.
*
- * @loaded_image_info: the image
- * @env_var: name of the environment variable
+ * @handle: the image handle
+ * @env_var: name of the environment variable
+ * Return: status code
*/
-static void set_load_options(struct efi_loaded_image *loaded_image_info,
- const char *env_var)
+static efi_status_t set_load_options(efi_handle_t handle, const char *env_var)
{
+ struct efi_loaded_image *loaded_image_info;
size_t size;
const char *env = env_get(env_var);
u16 *pos;
+ efi_status_t ret;
+
+ ret = EFI_CALL(systab.boottime->open_protocol(
+ handle,
+ &efi_guid_loaded_image,
+ (void **)&loaded_image_info,
+ efi_root, NULL,
+ EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL));
+ if (ret != EFI_SUCCESS)
+ return EFI_INVALID_PARAMETER;
loaded_image_info->load_options = NULL;
loaded_image_info->load_options_size = 0;
if (!env)
- return;
+ goto out;
+
size = utf8_utf16_strlen(env) + 1;
loaded_image_info->load_options = calloc(size, sizeof(u16));
if (!loaded_image_info->load_options) {
printf("ERROR: Out of memory\n");
- return;
+ EFI_CALL(systab.boottime->close_protocol(handle,
+ &efi_guid_loaded_image,
+ efi_root, NULL));
+ return EFI_OUT_OF_RESOURCES;
}
pos = loaded_image_info->load_options;
utf8_utf16_strcpy(&pos, env);
loaded_image_info->load_options_size = size * 2;
+
+out:
+ return EFI_CALL(systab.boottime->close_protocol(handle,
+ &efi_guid_loaded_image,
+ efi_root, NULL));
}
+#if !CONFIG_IS_ENABLED(GENERATE_ACPI_TABLE)
+
/**
* copy_fdt() - Copy the device tree to a new location available to EFI
*
- * The FDT is relocated into a suitable location within the EFI memory map.
- * An additional 12KB is added to the space in case the device tree needs to be
+ * The FDT is copied to a suitable location within the EFI memory map.
+ * Additional 12 KiB are added to the space in case the device tree needs to be
* expanded later with fdt_open_into().
*
- * @fdt_addr: On entry, address of start of FDT. On exit, address of relocated
- * FDT start
- * @fdt_sizep: Returns new size of FDT, including
- * @return new relocated address of FDT
+ * @fdtp: On entry a pointer to the flattened device tree.
+ * On exit a pointer to the copy of the flattened device tree.
+ * FDT start
+ * Return: status code
*/
-static efi_status_t copy_fdt(ulong *fdt_addrp, ulong *fdt_sizep)
+static efi_status_t copy_fdt(void **fdtp)
{
unsigned long fdt_ram_start = -1L, fdt_pages;
efi_status_t ret = 0;
}
/*
- * Give us at least 4KB of breathing room in case the device tree needs
- * to be expanded later. Round up to the nearest EFI page boundary.
+ * Give us at least 12 KiB of breathing room in case the device tree
+ * needs to be expanded later.
*/
- fdt = map_sysmem(*fdt_addrp, 0);
- fdt_size = fdt_totalsize(fdt);
- fdt_size += 4096 * 3;
- fdt_size = ALIGN(fdt_size + EFI_PAGE_SIZE - 1, EFI_PAGE_SIZE);
- fdt_pages = fdt_size >> EFI_PAGE_SHIFT;
-
- /* Safe fdt location is at 127MB */
- new_fdt_addr = fdt_ram_start + (127 * 1024 * 1024) + fdt_size;
+ fdt = *fdtp;
+ fdt_pages = efi_size_in_pages(fdt_totalsize(fdt) + 0x3000);
+ fdt_size = fdt_pages << EFI_PAGE_SHIFT;
+
+ /*
+ * Safe fdt location is at 127 MiB.
+ * On the sandbox convert from the sandbox address space.
+ */
+ new_fdt_addr = (uintptr_t)map_sysmem(fdt_ram_start + 0x7f00000 +
+ fdt_size, 0);
ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
- EFI_RUNTIME_SERVICES_DATA, fdt_pages,
+ EFI_BOOT_SERVICES_DATA, 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_RUNTIME_SERVICES_DATA, fdt_pages,
+ EFI_BOOT_SERVICES_DATA, fdt_pages,
&new_fdt_addr);
if (ret != EFI_SUCCESS) {
printf("ERROR: Failed to reserve space for FDT\n");
goto done;
}
}
-
- new_fdt = map_sysmem(new_fdt_addr, fdt_size);
+ new_fdt = (void *)(uintptr_t)new_fdt_addr;
memcpy(new_fdt, fdt, fdt_totalsize(fdt));
fdt_set_totalsize(new_fdt, fdt_size);
- *fdt_addrp = new_fdt_addr;
- *fdt_sizep = fdt_size;
+ *fdtp = (void *)(uintptr_t)new_fdt_addr;
done:
return ret;
}
-static efi_status_t efi_do_enter(
- 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;
-
- if (entry)
- ret = entry(image_handle, st);
- st->boottime->exit(image_handle, ret, 0, NULL);
- return ret;
-}
-
-#ifdef CONFIG_ARM64
-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();
-
- return efi_do_enter(image_handle, st, entry);
-}
-#endif
-
-#ifdef CONFIG_ARMV7_NONSEC
-static bool is_nonsec;
-
-static efi_status_t efi_run_in_hyp(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();
-
- is_nonsec = true;
-
- return efi_do_enter(image_handle, st, entry);
-}
-#endif
-
-/*
+/**
* 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
if (fdt_get_mem_rsv(fdt, i, &addr, &size) != 0)
continue;
- pages = ALIGN(size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT;
- if (!efi_add_memory_map(addr, pages, EFI_RESERVED_MEMORY_TYPE,
- false))
+ /* Convert from sandbox address space. */
+ addr = (uintptr_t)map_sysmem(addr, 0);
+
+ 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) != EFI_SUCCESS)
printf("FDT memrsv map %d: Failed to add to map\n", i);
}
}
-static efi_status_t efi_install_fdt(ulong fdt_addr)
+/**
+ * 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
+ *
+ * If fdt_opt is available, 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 fdtcontroladdr will be used.
+ *
+ * On architectures (x86) using ACPI tables device trees shall not be installed
+ * as configuration table.
+ *
+ * @fdt_opt: pointer to argument
+ * Return: status code
+ */
+static efi_status_t efi_install_fdt(const char *fdt_opt)
{
+ /*
+ * 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_opt) {
+ printf("ERROR: can't have ACPI table and device tree.\n");
+ return EFI_LOAD_ERROR;
+ }
+#else
+ unsigned long fdt_addr;
+ void *fdt;
bootm_headers_t img = { 0 };
- ulong fdt_pages, fdt_size, fdt_start;
efi_status_t ret;
- void *fdt;
+ if (fdt_opt) {
+ fdt_addr = simple_strtoul(fdt_opt, NULL, 16);
+ if (!fdt_addr)
+ return EFI_INVALID_PARAMETER;
+ } else {
+ /* Look for device tree that is already installed */
+ if (get_config_table(&efi_guid_fdt))
+ return EFI_SUCCESS;
+ /* Use our own device tree as default */
+ 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) {
+ printf("ERROR: invalid $fdtcontroladdr\n");
+ return EFI_LOAD_ERROR;
+ }
+ }
+
+ /* Install device tree */
fdt = map_sysmem(fdt_addr, 0);
if (fdt_check_header(fdt)) {
printf("ERROR: invalid device tree\n");
- return EFI_INVALID_PARAMETER;
+ return EFI_LOAD_ERROR;
}
- /* Prepare fdt for payload */
- ret = copy_fdt(&fdt_addr, &fdt_size);
- if (ret)
- return ret;
+ /* Create memory reservations as indicated by the device tree */
+ efi_carve_out_dt_rsv(fdt);
+
+ /* Prepare device tree for payload */
+ ret = copy_fdt(&fdt);
+ if (ret) {
+ printf("ERROR: out of memory\n");
+ return EFI_OUT_OF_RESOURCES;
+ }
- unmap_sysmem(fdt);
- fdt = map_sysmem(fdt_addr, 0);
- fdt_size = fdt_totalsize(fdt);
if (image_setup_libfdt(&img, fdt, 0, NULL)) {
printf("ERROR: failed to process device tree\n");
return EFI_LOAD_ERROR;
}
- efi_carve_out_dt_rsv(fdt);
-
- /* Link to it in the efi tables */
+ /* Install device tree as UEFI table */
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 = fdt_addr;
- fdt_pages = fdt_size >> EFI_PAGE_SHIFT;
-
- ret = efi_add_memory_map(fdt_start, fdt_pages,
- EFI_BOOT_SERVICES_DATA, true);
+ if (ret != EFI_SUCCESS) {
+ printf("ERROR: failed to install device tree\n");
+ return ret;
+ }
+#endif /* GENERATE_ACPI_TABLE */
- return ret;
+ 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_handle = NULL;
- struct efi_loaded_image *loaded_image_info = NULL;
+ efi_uintn_t exit_data_size = 0;
+ u16 *exit_data = NULL;
+
+ /* Transfer environment variable as load options */
+ ret = set_load_options(handle, "bootargs");
+ if (ret != EFI_SUCCESS)
+ return ret;
+
+ /* Call our payload! */
+ 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);
+ }
- EFIAPI efi_status_t (*entry)(efi_handle_t image_handle,
- struct efi_system_table *st);
+ efi_restore_gd();
/*
- * Special case for efi payload not loaded from disk, such as
- * 'bootefi hello' or for example payload loaded directly into
- * memory via jtag, etc:
+ * FIXME: Who is responsible for
+ * free(loaded_image_info->load_options);
+ * Once efi_exit() is implemented correctly,
+ * handle itself doesn't exist here.
*/
+
+ return ret;
+}
+
+/**
+ * do_efibootmgr() - execute EFI boot manager
+ *
+ * Return: status code
+ */
+static int do_efibootmgr(void)
+{
+ efi_handle_t handle;
+ efi_status_t ret;
+
+ ret = efi_bootmgr_load(&handle);
+ if (ret != EFI_SUCCESS) {
+ printf("EFI boot manager: Cannot load any image\n");
+ return CMD_RET_FAILURE;
+ }
+
+ ret = do_bootefi_exec(handle);
+
+ 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;
+ struct efi_device_path *device_path, *image_path;
+ struct efi_device_path *file_path = NULL;
+ unsigned long addr, size;
+ const char *size_str;
+ efi_handle_t mem_handle = NULL, handle;
+ 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);
+
+ device_path = NULL;
+ 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);
+
+ device_path = bootefi_device_path;
+ image_path = bootefi_image_path;
+ }
+
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(0, 0, 0);
- device_path = image_path = memdp;
/*
- * Grub expects that the device path of the loaded image is
- * installed on a handle.
+ * 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)image_buf, 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 exit;
+ goto out;
+
ret = efi_add_protocol(mem_handle, &efi_guid_device_path,
- device_path);
+ file_path);
if (ret != EFI_SUCCESS)
- goto exit;
+ goto out;
} else {
assert(device_path && image_path);
+ file_path = efi_dp_append(device_path, image_path);
}
- ret = efi_setup_loaded_image(device_path, image_path, &image_handle,
- &loaded_image_info);
+ ret = EFI_CALL(efi_load_image(false, efi_root,
+ file_path, image_buf, size, &handle));
if (ret != EFI_SUCCESS)
- goto exit;
-
- /*
- * 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
- */
- efi_save_gd();
-
- /* Transfer environment variable bootargs as load options */
- set_load_options(loaded_image_info, "bootargs");
- /* Load the EFI payload */
- entry = efi_load_pe(image_handle, efi, loaded_image_info);
- if (!entry) {
- ret = EFI_LOAD_ERROR;
- goto exit;
- }
+ goto out;
- 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;
- }
+ ret = do_bootefi_exec(handle);
- /* we don't support much: */
- env_set("efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported",
- "{ro,boot}(blob)0000000000000000");
+out:
+ if (mem_handle)
+ efi_delete_handle(mem_handle);
+ if (file_path)
+ efi_free_pool(file_path);
- /* Call our payload! */
- debug("%s:%d Jumping to 0x%lx\n", __func__, __LINE__, (long)entry);
+ if (ret != EFI_SUCCESS)
+ return CMD_RET_FAILURE;
- if (setjmp(&image_handle->exit_jmp)) {
- ret = image_handle->exit_status;
- goto exit;
- }
+ return CMD_RET_SUCCESS;
+}
-#ifdef CONFIG_ARM64
- /* On AArch64 we need to make sure we call our payload in < EL3 */
- if (current_el() == 3) {
- smp_kick_all_cpus();
- dcache_disable(); /* flush cache before switch to EL2 */
+#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
+static efi_status_t bootefi_run_prepare(const char *load_options_path,
+ struct efi_device_path *device_path,
+ struct efi_device_path *image_path,
+ struct efi_loaded_image_obj **image_objp,
+ struct efi_loaded_image **loaded_image_infop)
+{
+ efi_status_t ret;
- /* Move into EL2 and keep running there */
- armv8_switch_to_el2((ulong)entry,
- (ulong)image_handle,
- (ulong)&systab, 0, (ulong)efi_run_in_el2,
- ES_TO_AARCH64);
+ ret = efi_setup_loaded_image(device_path, image_path, image_objp,
+ loaded_image_infop);
+ if (ret != EFI_SUCCESS)
+ return ret;
- /* Should never reach here, efi exits with longjmp */
- while (1) { }
- }
-#endif
+ /* Transfer environment variable as load options */
+ return set_load_options((efi_handle_t)*image_objp, load_options_path);
+}
-#ifdef CONFIG_ARMV7_NONSEC
- if (armv7_boot_nonsec() && !is_nonsec) {
- dcache_disable(); /* flush cache before switch to HYP */
+/**
+ * bootefi_test_prepare() - prepare to run an EFI test
+ *
+ * Prepare to run a test as if it were provided by a loaded image.
+ *
+ * @image_objp: pointer to be set to the loaded image handle
+ * @loaded_image_infop: pointer to be set to the loaded image protocol
+ * @path: dummy file path used to construct the device path
+ * set in the loaded image protocol
+ * @load_options_path: name of a U-Boot environment variable. Its value is
+ * set as load options in the loaded image protocol.
+ * Return: status code
+ */
+static efi_status_t bootefi_test_prepare
+ (struct efi_loaded_image_obj **image_objp,
+ struct efi_loaded_image **loaded_image_infop, const char *path,
+ const char *load_options_path)
+{
+ efi_status_t ret;
- armv7_init_nonsec();
- secure_ram_addr(_do_nonsec_entry)(
- efi_run_in_hyp,
- (uintptr_t)entry,
- (uintptr_t)image_handle,
- (uintptr_t)&systab);
+ /* Construct a dummy device path */
+ bootefi_device_path = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE, 0, 0);
+ if (!bootefi_device_path)
+ return EFI_OUT_OF_RESOURCES;
- /* Should never reach here, efi exits with longjmp */
- while (1) { }
+ bootefi_image_path = efi_dp_from_file(NULL, 0, path);
+ if (!bootefi_image_path) {
+ ret = EFI_OUT_OF_RESOURCES;
+ goto failure;
}
-#endif
-
- ret = efi_do_enter(image_handle, &systab, entry);
-exit:
- /* image has returned, loaded-image obj goes *poof*: */
- if (image_handle)
- efi_delete_handle(&image_handle->parent);
- if (mem_handle)
- efi_delete_handle(mem_handle);
+ ret = bootefi_run_prepare(load_options_path, bootefi_device_path,
+ bootefi_image_path, image_objp,
+ loaded_image_infop);
+ if (ret == EFI_SUCCESS)
+ return ret;
+ efi_free_pool(bootefi_image_path);
+ bootefi_image_path = NULL;
+failure:
+ efi_free_pool(bootefi_device_path);
+ bootefi_device_path = NULL;
return ret;
}
-static int do_bootefi_bootmgr_exec(void)
+/**
+ * bootefi_run_finish() - finish up after running an EFI test
+ *
+ * @loaded_image_info: Pointer to a struct which holds the loaded image info
+ * @image_obj: Pointer to a struct which holds the loaded image object
+ */
+static void bootefi_run_finish(struct efi_loaded_image_obj *image_obj,
+ struct efi_loaded_image *loaded_image_info)
{
- struct efi_device_path *device_path, *file_path;
- void *addr;
- efi_status_t r;
-
- /*
- * 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
- */
- efi_save_gd();
+ efi_restore_gd();
+ free(loaded_image_info->load_options);
+ efi_delete_handle(&image_obj->header);
+}
- addr = efi_bootmgr_load(&device_path, &file_path);
- if (!addr)
- return 1;
+/**
+ * do_efi_selftest() - execute EFI selftest
+ *
+ * Return: status code
+ */
+static int do_efi_selftest(void)
+{
+ struct efi_loaded_image_obj *image_obj;
+ struct efi_loaded_image *loaded_image_info;
+ efi_status_t ret;
- printf("## Starting EFI application at %p ...\n", addr);
- r = do_bootefi_exec(addr, device_path, file_path);
- printf("## Application terminated, r = %lu\n",
- r & ~EFI_ERROR_MASK);
+ ret = bootefi_test_prepare(&image_obj, &loaded_image_info,
+ "\\selftest", "efi_selftest");
+ if (ret != EFI_SUCCESS)
+ return CMD_RET_FAILURE;
- if (r != EFI_SUCCESS)
- return 1;
+ /* Execute the test */
+ ret = EFI_CALL(efi_selftest(&image_obj->header, &systab));
+ bootefi_run_finish(image_obj, loaded_image_info);
- return 0;
+ return ret != EFI_SUCCESS;
}
+#endif /* CONFIG_CMD_BOOTEFI_SELFTEST */
-/* Interpreter command to boot an arbitrary EFI image from memory */
+/**
+ * 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(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- unsigned long addr;
- char *saddr;
- efi_status_t r;
- unsigned long fdt_addr;
+ efi_status_t ret;
- /* Allow unaligned memory access */
- allow_unaligned();
+ if (argc < 2)
+ return CMD_RET_USAGE;
/* 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;
}
- if (argc < 2)
+ ret = efi_install_fdt(argc > 2 ? argv[2] : NULL);
+ if (ret == EFI_INVALID_PARAMETER)
return CMD_RET_USAGE;
+ else if (ret != EFI_SUCCESS)
+ return CMD_RET_FAILURE;
- if (argc > 2) {
- fdt_addr = 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;
-
- 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
-#endif
+ if (!strcmp(argv[1], "bootmgr"))
+ return do_efibootmgr();
#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
- if (!strcmp(argv[1], "selftest")) {
- struct efi_loaded_image_obj *image_handle;
- struct efi_loaded_image *loaded_image_info;
-
- /* Construct a dummy device path. */
- bootefi_device_path = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE,
- (uintptr_t)&efi_selftest,
- (uintptr_t)&efi_selftest);
- bootefi_image_path = efi_dp_from_file(NULL, 0, "\\selftest");
-
- r = efi_setup_loaded_image(bootefi_device_path,
- bootefi_image_path, &image_handle,
- &loaded_image_info);
- if (r != EFI_SUCCESS)
- return CMD_RET_FAILURE;
-
- /*
- * 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
- */
- efi_save_gd();
- /* Transfer environment variable efi_selftest as load options */
- set_load_options(loaded_image_info, "efi_selftest");
- /* Execute the test */
- r = efi_selftest(image_handle, &systab);
- efi_restore_gd();
- free(loaded_image_info->load_options);
- efi_delete_handle(&image_handle->parent);
- return r != EFI_SUCCESS;
- } else
+ else if (!strcmp(argv[1], "selftest"))
+ return do_efi_selftest();
#endif
- if (!strcmp(argv[1], "bootmgr")) {
- 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;
-
- }
- 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)
{
- char filename[32] = { 0 }; /* dp->str is u16[32] long */
- char *s;
+ struct efi_device_path *device, *image;
+ efi_status_t ret;
/* efi_set_bootdev is typically called repeatedly, recover memory */
efi_free_pool(bootefi_device_path);
efi_free_pool(bootefi_image_path);
- /* If blk_get_device_part_str fails, avoid duplicate free. */
- bootefi_device_path = NULL;
- bootefi_image_path = NULL;
-
- if (strcmp(dev, "Net")) {
- struct blk_desc *desc;
- disk_partition_t fs_partition;
- int part;
- part = blk_get_device_part_str(dev, devnr, &desc, &fs_partition,
- 1);
- if (part < 0)
- return;
+ 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;
- bootefi_device_path = efi_dp_from_part(desc, part);
- } else {
-#ifdef CONFIG_NET
- bootefi_device_path = efi_dp_from_eth();
-#endif
- }
-
- if (!path)
- return;
-
- if (strcmp(dev, "Net")) {
- /* Add leading / to fs paths, because they're absolute */
- snprintf(filename, sizeof(filename), "/%s", path);
+ efi_dp_split_file_path(image, &device, &image);
+ efi_free_pool(image_tmp);
+ }
+ bootefi_image_path = image;
} else {
- snprintf(filename, sizeof(filename), "%s", path);
+ bootefi_device_path = NULL;
+ bootefi_image_path = NULL;
}
- /* DOS style file path: */
- s = filename;
- while ((s = strchr(s, '/')))
- *s++ = '\\';
- bootefi_image_path = efi_dp_from_file(NULL, 0, filename);
}
projects / oweals / u-boot.git / blobdiff