#include <search.h>
#include <linux/ctype.h>
+#define BS systab.boottime
#define RT systab.runtime
+/**
+ * efi_get_device_handle_info() - get information of UEFI device
+ *
+ * @handle: Handle of UEFI device
+ * @dev_path_text: Pointer to text of device path
+ * Return: 0 on success, -1 on failure
+ *
+ * Currently return a formatted text of device path.
+ */
+static int efi_get_device_handle_info(efi_handle_t handle, u16 **dev_path_text)
+{
+ struct efi_device_path *dp;
+ efi_status_t ret;
+
+ ret = EFI_CALL(BS->open_protocol(handle, &efi_guid_device_path,
+ (void **)&dp, NULL /* FIXME */, NULL,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL));
+ if (ret == EFI_SUCCESS) {
+ *dev_path_text = efi_dp_str(dp);
+ return 0;
+ } else {
+ return -1;
+ }
+}
+
+#define EFI_HANDLE_WIDTH ((int)sizeof(efi_handle_t) * 2)
+
+static const char spc[] = " ";
+static const char sep[] = "================";
+
+/**
+ * do_efi_show_devices() - show UEFI devices
+ *
+ * @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 "devices" sub-command.
+ * Show all UEFI devices and their information.
+ */
+static int do_efi_show_devices(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
+{
+ efi_handle_t *handles;
+ efi_uintn_t num, i;
+ u16 *dev_path_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("Device%.*s Device Path\n", EFI_HANDLE_WIDTH - 6, spc);
+ printf("%.*s ====================\n", EFI_HANDLE_WIDTH, sep);
+ for (i = 0; i < num; i++) {
+ if (!efi_get_device_handle_info(handles[i], &dev_path_text)) {
+ printf("%p %ls\n", handles[i], dev_path_text);
+ efi_free_pool(dev_path_text);
+ }
+ }
+
+ EFI_CALL(BS->free_pool(handles));
+
+ 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",
+ DEVICE_PATH_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",
+ BLOCK_IO_GUID,
+ },
+ {
+ "Simple File System",
+ EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID,
+ },
+ {
+ "Loaded Image",
+ LOADED_IMAGE_PROTOCOL_GUID,
+ },
+ {
+ "GOP",
+ EFI_GOP_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;
static cmd_tbl_t cmd_efidebug_sub[] = {
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 UEFI BootNext variable\n"
"efidebug boot order [<bootid#1> [<bootid#2> [<bootid#3> [...]]]]\n"
" - set/show UEFI boot order\n"
- "\n";
+ "\n"
+ "efidebug 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(
projects / oweals / u-boot.git / blobdiff