#include <efi_loader.h>
#include <environment.h>
#include <exports.h>
+#include <hexdump.h>
#include <malloc.h>
#include <search.h>
#include <linux/ctype.h>
return CMD_RET_SUCCESS;
}
+/**
+ * efi_get_driver_handle_info() - get information of UEFI driver
+ *
+ * @handle: Handle of UEFI device
+ * @driver_name: Driver name
+ * @image_path: Pointer to text of device path
+ * Return: 0 on success, -1 on failure
+ *
+ * Currently return no useful information as all UEFI drivers are
+ * built-in..
+ */
+static int efi_get_driver_handle_info(efi_handle_t handle, u16 **driver_name,
+ u16 **image_path)
+{
+ struct efi_handler *handler;
+ struct efi_loaded_image *image;
+ efi_status_t ret;
+
+ /*
+ * driver name
+ * TODO: support EFI_COMPONENT_NAME2_PROTOCOL
+ */
+ *driver_name = NULL;
+
+ /* image name */
+ ret = efi_search_protocol(handle, &efi_guid_loaded_image, &handler);
+ if (ret != EFI_SUCCESS) {
+ *image_path = NULL;
+ return 0;
+ }
+
+ image = handler->protocol_interface;
+ *image_path = efi_dp_str(image->file_path);
+
+ return 0;
+}
+
+/**
+ * do_efi_show_drivers() - show UEFI drivers
+ *
+ * @cmdtp: Command table
+ * @flag: Command flag
+ * @argc: Number of arguments
+ * @argv: Argument array
+ * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
+ *
+ * Implement efidebug "drivers" sub-command.
+ * Show all UEFI drivers and their information.
+ */
+static int do_efi_show_drivers(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
+{
+ efi_handle_t *handles;
+ efi_uintn_t num, i;
+ u16 *driver_name, *image_path_text;
+ efi_status_t ret;
+
+ ret = EFI_CALL(BS->locate_handle_buffer(
+ BY_PROTOCOL, &efi_guid_driver_binding_protocol,
+ NULL, &num, &handles));
+ if (ret != EFI_SUCCESS)
+ return CMD_RET_FAILURE;
+
+ if (!num)
+ return CMD_RET_SUCCESS;
+
+ printf("Driver%.*s Name Image Path\n",
+ EFI_HANDLE_WIDTH - 6, spc);
+ printf("%.*s ==================== ====================\n",
+ EFI_HANDLE_WIDTH, sep);
+ for (i = 0; i < num; i++) {
+ if (!efi_get_driver_handle_info(handles[i], &driver_name,
+ &image_path_text)) {
+ if (image_path_text)
+ printf("%p %-20ls %ls\n", handles[i],
+ driver_name, image_path_text);
+ else
+ printf("%p %-20ls <built-in>\n",
+ handles[i], driver_name);
+ EFI_CALL(BS->free_pool(driver_name));
+ EFI_CALL(BS->free_pool(image_path_text));
+ }
+ }
+
+ EFI_CALL(BS->free_pool(handles));
+
+ return CMD_RET_SUCCESS;
+}
+
+static const struct {
+ const char *text;
+ const efi_guid_t guid;
+} guid_list[] = {
+ {
+ "Device Path",
+ EFI_DEVICE_PATH_PROTOCOL_GUID,
+ },
+ {
+ "Device Path To Text",
+ EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID,
+ },
+ {
+ "Device Path Utilities",
+ EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID,
+ },
+ {
+ "Unicode Collation 2",
+ EFI_UNICODE_COLLATION_PROTOCOL2_GUID,
+ },
+ {
+ "Driver Binding",
+ EFI_DRIVER_BINDING_PROTOCOL_GUID,
+ },
+ {
+ "Simple Text Input",
+ EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID,
+ },
+ {
+ "Simple Text Input Ex",
+ EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID,
+ },
+ {
+ "Simple Text Output",
+ EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID,
+ },
+ {
+ "Block IO",
+ EFI_BLOCK_IO_PROTOCOL_GUID,
+ },
+ {
+ "Simple File System",
+ EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID,
+ },
+ {
+ "Loaded Image",
+ EFI_LOADED_IMAGE_PROTOCOL_GUID,
+ },
+ {
+ "Graphics Output",
+ EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID,
+ },
+ {
+ "HII String",
+ EFI_HII_STRING_PROTOCOL_GUID,
+ },
+ {
+ "HII Database",
+ EFI_HII_DATABASE_PROTOCOL_GUID,
+ },
+ {
+ "HII Config Routing",
+ EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID,
+ },
+ {
+ "Simple Network",
+ EFI_SIMPLE_NETWORK_PROTOCOL_GUID,
+ },
+ {
+ "PXE Base Code",
+ EFI_PXE_BASE_CODE_PROTOCOL_GUID,
+ },
+};
+
+/**
+ * get_guid_text - get string of protocol guid
+ * @guid: Protocol guid
+ * Return: String
+ *
+ * Return string for display to represent the protocol.
+ */
+static const char *get_guid_text(const efi_guid_t *guid)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(guid_list); i++)
+ if (!guidcmp(&guid_list[i].guid, guid))
+ break;
+
+ if (i != ARRAY_SIZE(guid_list))
+ return guid_list[i].text;
+ else
+ return NULL;
+}
+
+/**
+ * do_efi_show_handles() - show UEFI handles
+ *
+ * @cmdtp: Command table
+ * @flag: Command flag
+ * @argc: Number of arguments
+ * @argv: Argument array
+ * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
+ *
+ * Implement efidebug "dh" sub-command.
+ * Show all UEFI handles and their information, currently all protocols
+ * added to handle.
+ */
+static int do_efi_show_handles(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
+{
+ efi_handle_t *handles;
+ efi_guid_t **guid;
+ efi_uintn_t num, count, i, j;
+ const char *guid_text;
+ efi_status_t ret;
+
+ ret = EFI_CALL(BS->locate_handle_buffer(ALL_HANDLES, NULL, NULL,
+ &num, &handles));
+ if (ret != EFI_SUCCESS)
+ return CMD_RET_FAILURE;
+
+ if (!num)
+ return CMD_RET_SUCCESS;
+
+ printf("Handle%.*s Protocols\n", EFI_HANDLE_WIDTH - 6, spc);
+ printf("%.*s ====================\n", EFI_HANDLE_WIDTH, sep);
+ for (i = 0; i < num; i++) {
+ printf("%p", handles[i]);
+ ret = EFI_CALL(BS->protocols_per_handle(handles[i], &guid,
+ &count));
+ if (ret || !count) {
+ putc('\n');
+ continue;
+ }
+
+ for (j = 0; j < count; j++) {
+ if (j)
+ printf(", ");
+ else
+ putc(' ');
+
+ guid_text = get_guid_text(guid[j]);
+ if (guid_text)
+ puts(guid_text);
+ else
+ printf("%pUl", guid[j]);
+ }
+ putc('\n');
+ }
+
+ EFI_CALL(BS->free_pool(handles));
+
+ return CMD_RET_SUCCESS;
+}
+
+/**
+ * do_efi_show_images() - show UEFI images
+ *
+ * @cmdtp: Command table
+ * @flag: Command flag
+ * @argc: Number of arguments
+ * @argv: Argument array
+ * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
+ *
+ * Implement efidebug "images" sub-command.
+ * Show all UEFI loaded images and their information.
+ */
+static int do_efi_show_images(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
+{
+ efi_print_image_infos(NULL);
+
+ return CMD_RET_SUCCESS;
+}
+
+static const char * const efi_mem_type_string[] = {
+ [EFI_RESERVED_MEMORY_TYPE] = "RESERVED",
+ [EFI_LOADER_CODE] = "LOADER CODE",
+ [EFI_LOADER_DATA] = "LOADER DATA",
+ [EFI_BOOT_SERVICES_CODE] = "BOOT CODE",
+ [EFI_BOOT_SERVICES_DATA] = "BOOT DATA",
+ [EFI_RUNTIME_SERVICES_CODE] = "RUNTIME CODE",
+ [EFI_RUNTIME_SERVICES_DATA] = "RUNTIME DATA",
+ [EFI_CONVENTIONAL_MEMORY] = "CONVENTIONAL",
+ [EFI_UNUSABLE_MEMORY] = "UNUSABLE MEM",
+ [EFI_ACPI_RECLAIM_MEMORY] = "ACPI RECLAIM MEM",
+ [EFI_ACPI_MEMORY_NVS] = "ACPI NVS",
+ [EFI_MMAP_IO] = "IO",
+ [EFI_MMAP_IO_PORT] = "IO PORT",
+ [EFI_PAL_CODE] = "PAL",
+};
+
+static const struct efi_mem_attrs {
+ const u64 bit;
+ const char *text;
+} efi_mem_attrs[] = {
+ {EFI_MEMORY_UC, "UC"},
+ {EFI_MEMORY_UC, "UC"},
+ {EFI_MEMORY_WC, "WC"},
+ {EFI_MEMORY_WT, "WT"},
+ {EFI_MEMORY_WB, "WB"},
+ {EFI_MEMORY_UCE, "UCE"},
+ {EFI_MEMORY_WP, "WP"},
+ {EFI_MEMORY_RP, "RP"},
+ {EFI_MEMORY_XP, "WP"},
+ {EFI_MEMORY_NV, "NV"},
+ {EFI_MEMORY_MORE_RELIABLE, "REL"},
+ {EFI_MEMORY_RO, "RO"},
+ {EFI_MEMORY_RUNTIME, "RT"},
+};
+
+/**
+ * print_memory_attributes() - print memory map attributes
+ * @attributes: Attribute value
+ *
+ * Print memory map attributes
+ */
+static void print_memory_attributes(u64 attributes)
+{
+ int sep, i;
+
+ for (sep = 0, i = 0; i < ARRAY_SIZE(efi_mem_attrs); i++)
+ if (attributes & efi_mem_attrs[i].bit) {
+ if (sep) {
+ putc('|');
+ } else {
+ putc(' ');
+ sep = 1;
+ }
+ puts(efi_mem_attrs[i].text);
+ }
+}
+
+#define EFI_PHYS_ADDR_WIDTH (int)(sizeof(efi_physical_addr_t) * 2)
+
+/**
+ * do_efi_show_memmap() - show UEFI memory map
+ *
+ * @cmdtp: Command table
+ * @flag: Command flag
+ * @argc: Number of arguments
+ * @argv: Argument array
+ * Return: CMD_RET_SUCCESS on success, CMD_RET_RET_FAILURE on failure
+ *
+ * Implement efidebug "memmap" sub-command.
+ * Show UEFI memory map.
+ */
+static int do_efi_show_memmap(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
+{
+ struct efi_mem_desc *memmap = NULL, *map;
+ efi_uintn_t map_size = 0;
+ const char *type;
+ int i;
+ efi_status_t ret;
+
+ ret = EFI_CALL(BS->get_memory_map(&map_size, memmap, NULL, NULL, NULL));
+ if (ret == EFI_BUFFER_TOO_SMALL) {
+ map_size += sizeof(struct efi_mem_desc); /* for my own */
+ ret = EFI_CALL(BS->allocate_pool(EFI_LOADER_DATA,
+ map_size, (void *)&memmap));
+ if (ret != EFI_SUCCESS)
+ return CMD_RET_FAILURE;
+ ret = EFI_CALL(BS->get_memory_map(&map_size, memmap,
+ NULL, NULL, NULL));
+ }
+ if (ret != EFI_SUCCESS) {
+ EFI_CALL(BS->free_pool(memmap));
+ return CMD_RET_FAILURE;
+ }
+
+ printf("Type Start%.*s End%.*s Attributes\n",
+ EFI_PHYS_ADDR_WIDTH - 5, spc, EFI_PHYS_ADDR_WIDTH - 3, spc);
+ printf("================ %.*s %.*s ==========\n",
+ EFI_PHYS_ADDR_WIDTH, sep, EFI_PHYS_ADDR_WIDTH, sep);
+ for (i = 0, map = memmap; i < map_size / sizeof(*map); map++, i++) {
+ if (map->type < EFI_MAX_MEMORY_TYPE)
+ type = efi_mem_type_string[map->type];
+ else
+ type = "(unknown)";
+
+ printf("%-16s %.*llx-%.*llx", type,
+ EFI_PHYS_ADDR_WIDTH,
+ map->physical_start,
+ EFI_PHYS_ADDR_WIDTH,
+ map->physical_start + map->num_pages * EFI_PAGE_SIZE);
+
+ print_memory_attributes(map->attribute);
+ putc('\n');
+ }
+
+ EFI_CALL(BS->free_pool(memmap));
+
+ return CMD_RET_SUCCESS;
+}
+
/**
* do_efi_boot_add() - set UEFI load option
*
id = (int)simple_strtoul(argv[1], &endp, 16);
if (*endp != '\0' || id > 0xffff)
- return CMD_RET_FAILURE;
+ return CMD_RET_USAGE;
sprintf(var_name, "Boot%04X", id);
p = var_name16;
+ sizeof(struct efi_device_path); /* for END */
/* optional data */
- lo.optional_data = (u8 *)(argc == 6 ? "" : argv[6]);
+ if (argc < 6)
+ lo.optional_data = NULL;
+ else
+ lo.optional_data = (const u8 *)argv[6];
size = efi_serialize_load_option(&lo, (u8 **)&data);
if (!size) {
/**
* show_efi_boot_opt_data() - dump UEFI load option
*
- * @id: Load option number
- * @data: Value of UEFI load option variable
+ * @id: load option number
+ * @data: value of UEFI load option variable
+ * @size: size of the boot option
*
* Decode the value of UEFI load option variable and print information.
*/
-static void show_efi_boot_opt_data(int id, void *data)
+static void show_efi_boot_opt_data(int id, void *data, size_t size)
{
struct efi_load_option lo;
char *label, *p;
utf16_utf8_strncpy(&p, lo.label, label_len16);
printf("Boot%04X:\n", id);
- printf("\tattributes: %c%c%c (0x%08x)\n",
+ printf(" attributes: %c%c%c (0x%08x)\n",
/* ACTIVE */
lo.attributes & LOAD_OPTION_ACTIVE ? 'A' : '-',
/* FORCE RECONNECT */
/* HIDDEN */
lo.attributes & LOAD_OPTION_HIDDEN ? 'H' : '-',
lo.attributes);
- printf("\tlabel: %s\n", label);
+ printf(" label: %s\n", label);
dp_str = efi_dp_str(lo.file_path);
- printf("\tfile_path: %ls\n", dp_str);
+ printf(" file_path: %ls\n", dp_str);
efi_free_pool(dp_str);
- printf("\tdata: %s\n", lo.optional_data);
-
+ printf(" data:\n");
+ print_hex_dump(" ", DUMP_PREFIX_OFFSET, 16, 1,
+ lo.optional_data, size + (u8 *)data -
+ (u8 *)lo.optional_data, true);
free(label);
}
data));
}
if (ret == EFI_SUCCESS)
- show_efi_boot_opt_data(id, data);
+ show_efi_boot_opt_data(id, data, size);
else if (ret == EFI_NOT_FOUND)
printf("Boot%04X: not found\n", id);
free(data);
}
+static int u16_tohex(u16 c)
+{
+ if (c >= '0' && c <= '9')
+ return c - '0';
+ if (c >= 'A' && c <= 'F')
+ return c - 'A' + 10;
+
+ /* not hexadecimal */
+ return -1;
+}
+
/**
* show_efi_boot_dump() - dump all UEFI load options
*
static int do_efi_boot_dump(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
- char regex[256];
- char * const regexlist[] = {regex};
- char *variables = NULL, *boot, *value;
- int len;
- int id;
+ u16 *var_name16, *p;
+ efi_uintn_t buf_size, size;
+ efi_guid_t guid;
+ int id, i, digit;
+ efi_status_t ret;
if (argc > 1)
return CMD_RET_USAGE;
- snprintf(regex, 256, "efi_.*-.*-.*-.*-.*_Boot[0-9A-F]+");
-
- /* TODO: use GetNextVariableName? */
- len = hexport_r(&env_htab, '\n', H_MATCH_REGEX | H_MATCH_KEY,
- &variables, 0, 1, regexlist);
-
- if (!len)
- return CMD_RET_SUCCESS;
-
- if (len < 0)
+ buf_size = 128;
+ var_name16 = malloc(buf_size);
+ if (!var_name16)
return CMD_RET_FAILURE;
- boot = variables;
- while (*boot) {
- value = strstr(boot, "Boot") + 4;
- id = (int)simple_strtoul(value, NULL, 16);
- show_efi_boot_opt(id);
- boot = strchr(boot, '\n');
- if (!*boot)
+ var_name16[0] = 0;
+ for (;;) {
+ size = buf_size;
+ ret = EFI_CALL(efi_get_next_variable_name(&size, var_name16,
+ &guid));
+ if (ret == EFI_NOT_FOUND)
break;
- boot++;
+ if (ret == EFI_BUFFER_TOO_SMALL) {
+ buf_size = size;
+ p = realloc(var_name16, buf_size);
+ if (!p) {
+ free(var_name16);
+ return CMD_RET_FAILURE;
+ }
+ var_name16 = p;
+ ret = EFI_CALL(efi_get_next_variable_name(&size,
+ var_name16,
+ &guid));
+ }
+ if (ret != EFI_SUCCESS) {
+ free(var_name16);
+ return CMD_RET_FAILURE;
+ }
+
+ if (memcmp(var_name16, L"Boot", 8))
+ continue;
+
+ for (id = 0, i = 0; i < 4; i++) {
+ digit = u16_tohex(var_name16[4 + i]);
+ if (digit < 0)
+ break;
+ id = (id << 4) + digit;
+ }
+ if (i == 4 && !var_name16[8])
+ show_efi_boot_opt(id);
}
- free(variables);
+
+ free(var_name16);
return CMD_RET_SUCCESS;
}
U_BOOT_CMD_MKENT(boot, CONFIG_SYS_MAXARGS, 1, do_efi_boot_opt, "", ""),
U_BOOT_CMD_MKENT(devices, CONFIG_SYS_MAXARGS, 1, do_efi_show_devices,
"", ""),
+ U_BOOT_CMD_MKENT(drivers, CONFIG_SYS_MAXARGS, 1, do_efi_show_drivers,
+ "", ""),
+ U_BOOT_CMD_MKENT(dh, CONFIG_SYS_MAXARGS, 1, do_efi_show_handles,
+ "", ""),
+ U_BOOT_CMD_MKENT(images, CONFIG_SYS_MAXARGS, 1, do_efi_show_images,
+ "", ""),
+ U_BOOT_CMD_MKENT(memmap, CONFIG_SYS_MAXARGS, 1, do_efi_show_memmap,
+ "", ""),
};
/**
" - set/show UEFI boot order\n"
"\n"
"efidebug devices\n"
- " - show uefi devices\n";
+ " - show uefi devices\n"
+ "efidebug drivers\n"
+ " - show uefi drivers\n"
+ "efidebug dh\n"
+ " - show uefi handles\n"
+ "efidebug images\n"
+ " - show loaded images\n"
+ "efidebug memmap\n"
+ " - show uefi memory map\n";
#endif
U_BOOT_CMD(