[people/ms/u-boot.git] / lib / efi_loader / efi_device_path_to_text.c

/*
 *  EFI device path interface
 *
 *  Copyright (c) 2017 Heinrich Schuchardt
 *
 *  SPDX-License-Identifier:     GPL-2.0+
 */

#include <common.h>
#include <efi_loader.h>

#define MAC_OUTPUT_LEN 22
#define UNKNOWN_OUTPUT_LEN 23

#define MAX_NODE_LEN 512
#define MAX_PATH_LEN 1024

const efi_guid_t efi_guid_device_path_to_text_protocol =
		EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;

static u16 *efi_str_to_u16(char *str)
{
	efi_uintn_t len;
	u16 *out;
	efi_status_t ret;

	len = strlen(str) + 1;
	ret = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, len * sizeof(u16),
				(void **)&out);
	if (ret != EFI_SUCCESS)
		return NULL;
	ascii2unicode(out, str);
	out[len - 1] = 0;
	return out;
}

static char *dp_unknown(char *s, struct efi_device_path *dp)
{
	s += sprintf(s, "UNKNOWN(%04x,%04x)", dp->type, dp->sub_type);
	return s;
}

static char *dp_hardware(char *s, struct efi_device_path *dp)
{
	switch (dp->sub_type) {
	case DEVICE_PATH_SUB_TYPE_MEMORY: {
		struct efi_device_path_memory *mdp =
			(struct efi_device_path_memory *)dp;
		s += sprintf(s, "MemoryMapped(0x%x,0x%llx,0x%llx)",
			     mdp->memory_type,
			     mdp->start_address,
			     mdp->end_address);
		break;
	}
	case DEVICE_PATH_SUB_TYPE_VENDOR: {
		struct efi_device_path_vendor *vdp =
			(struct efi_device_path_vendor *)dp;
		s += sprintf(s, "VenHw(%pUl)", &vdp->guid);
		break;
	}
	default:
		s = dp_unknown(s, dp);
		break;
	}
	return s;
}

static char *dp_acpi(char *s, struct efi_device_path *dp)
{
	switch (dp->sub_type) {
	case DEVICE_PATH_SUB_TYPE_ACPI_DEVICE: {
		struct efi_device_path_acpi_path *adp =
			(struct efi_device_path_acpi_path *)dp;
		s += sprintf(s, "Acpi(PNP%04x", EISA_PNP_NUM(adp->hid));
		if (adp->uid)
			s += sprintf(s, ",%d", adp->uid);
		s += sprintf(s, ")");
		break;
	}
	default:
		s = dp_unknown(s, dp);
		break;
	}
	return s;
}

static char *dp_msging(char *s, struct efi_device_path *dp)
{
	switch (dp->sub_type) {
	case DEVICE_PATH_SUB_TYPE_MSG_ATAPI: {
		struct efi_device_path_atapi *ide =
			(struct efi_device_path_atapi *)dp;
		s += sprintf(s, "Ata(%d,%d,%d)", ide->primary_secondary,
			     ide->slave_master, ide->logical_unit_number);
		break;
	}
	case DEVICE_PATH_SUB_TYPE_MSG_SCSI: {
		struct efi_device_path_scsi *ide =
			(struct efi_device_path_scsi *)dp;
		s += sprintf(s, "Scsi(%u,%u)", ide->target_id,
			     ide->logical_unit_number);
		break;
	}
	case DEVICE_PATH_SUB_TYPE_MSG_USB: {
		struct efi_device_path_usb *udp =
			(struct efi_device_path_usb *)dp;
		s += sprintf(s, "USB(0x%x,0x%x)", udp->parent_port_number,
			     udp->usb_interface);
		break;
	}
	case DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR: {
		struct efi_device_path_mac_addr *mdp =
			(struct efi_device_path_mac_addr *)dp;

		if (mdp->if_type != 0 && mdp->if_type != 1)
			break;

		s += sprintf(s, "MAC(%02x%02x%02x%02x%02x%02x,0x%1x)",
			mdp->mac.addr[0], mdp->mac.addr[1],
			mdp->mac.addr[2], mdp->mac.addr[3],
			mdp->mac.addr[4], mdp->mac.addr[5],
			mdp->if_type);

		break;
	}
	case DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS: {
		struct efi_device_path_usb_class *ucdp =
			(struct efi_device_path_usb_class *)dp;

		s += sprintf(s, "USBClass(%x,%x,%x,%x,%x)",
			ucdp->vendor_id, ucdp->product_id,
			ucdp->device_class, ucdp->device_subclass,
			ucdp->device_protocol);

		break;
	}
	case DEVICE_PATH_SUB_TYPE_MSG_SD:
	case DEVICE_PATH_SUB_TYPE_MSG_MMC: {
		const char *typename =
			(dp->sub_type == DEVICE_PATH_SUB_TYPE_MSG_SD) ?
					"SD" : "eMMC";
		struct efi_device_path_sd_mmc_path *sddp =
			(struct efi_device_path_sd_mmc_path *)dp;
		s += sprintf(s, "%s(%u)", typename, sddp->slot_number);
		break;
	}
	default:
		s = dp_unknown(s, dp);
		break;
	}
	return s;
}

/*
 * Convert a media device path node to text.
 *
 * @s		output buffer
 * @dp		device path node
 * @return	next unused buffer address
 */
static char *dp_media(char *s, struct efi_device_path *dp)
{
	switch (dp->sub_type) {
	case DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH: {
		struct efi_device_path_hard_drive_path *hddp =
			(struct efi_device_path_hard_drive_path *)dp;
		void *sig = hddp->partition_signature;
		u64 start;
		u64 end;

		/* Copy from packed structure to aligned memory */
		memcpy(&start, &hddp->partition_start, sizeof(start));
		memcpy(&end, &hddp->partition_end, sizeof(end));

		switch (hddp->signature_type) {
		case SIG_TYPE_MBR: {
			u32 signature;

			memcpy(&signature, sig, sizeof(signature));
			s += sprintf(
				s, "HD(%d,MBR,0x%08x,0x%llx,0x%llx)",
				hddp->partition_number, signature, start, end);
			break;
			}
		case SIG_TYPE_GUID:
			s += sprintf(
				s, "HD(%d,GPT,%pUl,0x%llx,0x%llx)",
				hddp->partition_number, sig, start, end);
			break;
		default:
			s += sprintf(
				s, "HD(%d,0x%02x,0,0x%llx,0x%llx)",
				hddp->partition_number, hddp->partmap_type,
				start, end);
			break;
		}

		break;
	}
	case DEVICE_PATH_SUB_TYPE_CDROM_PATH: {
		struct efi_device_path_cdrom_path *cddp =
			(struct efi_device_path_cdrom_path *)dp;
		s += sprintf(s, "CDROM(0x%x)", cddp->boot_entry);
		break;
	}
	case DEVICE_PATH_SUB_TYPE_FILE_PATH: {
		struct efi_device_path_file_path *fp =
			(struct efi_device_path_file_path *)dp;
		int slen = (dp->length - sizeof(*dp)) / 2;
		if (slen > MAX_NODE_LEN - 2)
			slen = MAX_NODE_LEN - 2;
		s += sprintf(s, "%-.*ls", slen, fp->str);
		break;
	}
	default:
		s = dp_unknown(s, dp);
		break;
	}
	return s;
}

/*
 * Converts a single node to a char string.
 *
 * @buffer		output buffer
 * @dp			device path or node
 * @return		end of string
 */
static char *efi_convert_single_device_node_to_text(
		char *buffer,
		struct efi_device_path *dp)
{
	char *str = buffer;

	switch (dp->type) {
	case DEVICE_PATH_TYPE_HARDWARE_DEVICE:
		str = dp_hardware(str, dp);
		break;
	case DEVICE_PATH_TYPE_ACPI_DEVICE:
		str = dp_acpi(str, dp);
		break;
	case DEVICE_PATH_TYPE_MESSAGING_DEVICE:
		str = dp_msging(str, dp);
		break;
	case DEVICE_PATH_TYPE_MEDIA_DEVICE:
		str = dp_media(str, dp);
		break;
	case DEVICE_PATH_TYPE_END:
		break;
	default:
		str = dp_unknown(str, dp);
	}

	*str = '\0';
	return str;
}

/*
 * This function implements the ConvertDeviceNodeToText service of the
 * EFI_DEVICE_PATH_TO_TEXT_PROTOCOL.
 * See the Unified Extensible Firmware Interface (UEFI) specification
 * for details.
 *
 * device_node		device node to be converted
 * display_only		true if the shorter text represenation shall be used
 * allow_shortcuts	true if shortcut forms may be used
 * @return		text represenation of the device path
 *			NULL if out of memory of device_path is NULL
 */
static uint16_t EFIAPI *efi_convert_device_node_to_text(
		struct efi_device_path *device_node,
		bool display_only,
		bool allow_shortcuts)
{
	char str[MAX_NODE_LEN];
	uint16_t *text = NULL;

	EFI_ENTRY("%p, %d, %d", device_node, display_only, allow_shortcuts);

	if (!device_node)
		goto out;
	efi_convert_single_device_node_to_text(str, device_node);

	text = efi_str_to_u16(str);

out:
	EFI_EXIT(EFI_SUCCESS);
	return text;
}

/*
 * This function implements the ConvertDevicePathToText service of the
 * EFI_DEVICE_PATH_TO_TEXT_PROTOCOL.
 * See the Unified Extensible Firmware Interface (UEFI) specification
 * for details.
 *
 * device_path		device path to be converted
 * display_only		true if the shorter text represenation shall be used
 * allow_shortcuts	true if shortcut forms may be used
 * @return		text represenation of the device path
 *			NULL if out of memory of device_path is NULL
 */
static uint16_t EFIAPI *efi_convert_device_path_to_text(
		struct efi_device_path *device_path,
		bool display_only,
		bool allow_shortcuts)
{
	uint16_t *text = NULL;
	char buffer[MAX_PATH_LEN];
	char *str = buffer;

	EFI_ENTRY("%p, %d, %d", device_path, display_only, allow_shortcuts);

	if (!device_path)
		goto out;
	while (device_path &&
	       str + MAX_NODE_LEN < buffer + MAX_PATH_LEN) {
		*str++ = '/';
		str = efi_convert_single_device_node_to_text(str, device_path);
		device_path = efi_dp_next(device_path);
	}

	text = efi_str_to_u16(buffer);

out:
	EFI_EXIT(EFI_SUCCESS);
	return text;
}

/* helper for debug prints.. efi_free_pool() the result. */
uint16_t *efi_dp_str(struct efi_device_path *dp)
{
	return EFI_CALL(efi_convert_device_path_to_text(dp, true, true));
}

const struct efi_device_path_to_text_protocol efi_device_path_to_text = {
	.convert_device_node_to_text = efi_convert_device_node_to_text,
	.convert_device_path_to_text = efi_convert_device_path_to_text,
};
Commit	Line	Data
cc5b7081	1	/*
	2	* EFI device path interface
	3	*
	4	* Copyright (c) 2017 Heinrich Schuchardt
	5	*
	6	* SPDX-License-Identifier: GPL-2.0+
	7	*/
	8
	9	#include <common.h>
	10	#include <efi_loader.h>
	11
09c5ab90	12	#define MAC_OUTPUT_LEN 22
09c5ab90	13	#define UNKNOWN_OUTPUT_LEN 23
cc5b7081	14
61aba193 HS	15	#define MAX_NODE_LEN 512
	16	#define MAX_PATH_LEN 1024
	17
cc5b7081	18	const efi_guid_t efi_guid_device_path_to_text_protocol =
	19	EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;
	20
61aba193 HS	21	static u16 efi_str_to_u16(char str)
	22	{
	23	efi_uintn_t len;
	24	u16 *out;
	25	efi_status_t ret;
	26
	27	len = strlen(str) + 1;
	28	ret = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, len * sizeof(u16),
	29	(void **)&out);
	30	if (ret != EFI_SUCCESS)
	31	return NULL;
	32	ascii2unicode(out, str);
	33	out[len - 1] = 0;
	34	return out;
	35	}
	36
adae4313 RC	37	static char dp_unknown(char s, struct efi_device_path *dp)
adae4313 RC	38	{
61aba193	39	s += sprintf(s, "UNKNOWN(%04x,%04x)", dp->type, dp->sub_type);
adae4313 RC	40	return s;
	41	}
	42
	43	static char dp_hardware(char s, struct efi_device_path *dp)
	44	{
	45	switch (dp->sub_type) {
bf19273e RC	46	case DEVICE_PATH_SUB_TYPE_MEMORY: {
	47	struct efi_device_path_memory *mdp =
	48	(struct efi_device_path_memory *)dp;
61aba193	49	s += sprintf(s, "MemoryMapped(0x%x,0x%llx,0x%llx)",
bf19273e RC	50	mdp->memory_type,
	51	mdp->start_address,
	52	mdp->end_address);
	53	break;
	54	}
adae4313 RC	55	case DEVICE_PATH_SUB_TYPE_VENDOR: {
	56	struct efi_device_path_vendor *vdp =
	57	(struct efi_device_path_vendor *)dp;
61aba193	58	s += sprintf(s, "VenHw(%pUl)", &vdp->guid);
adae4313 RC	59	break;
	60	}
	61	default:
	62	s = dp_unknown(s, dp);
	63	break;
	64	}
	65	return s;
	66	}
	67
	68	static char dp_acpi(char s, struct efi_device_path *dp)
	69	{
	70	switch (dp->sub_type) {
	71	case DEVICE_PATH_SUB_TYPE_ACPI_DEVICE: {
	72	struct efi_device_path_acpi_path *adp =
	73	(struct efi_device_path_acpi_path *)dp;
61aba193	74	s += sprintf(s, "Acpi(PNP%04x", EISA_PNP_NUM(adp->hid));
adae4313 RC	75	if (adp->uid)
	76	s += sprintf(s, ",%d", adp->uid);
	77	s += sprintf(s, ")");
	78	break;
	79	}
	80	default:
	81	s = dp_unknown(s, dp);
	82	break;
	83	}
	84	return s;
	85	}
	86
	87	static char dp_msging(char s, struct efi_device_path *dp)
	88	{
	89	switch (dp->sub_type) {
af3106a1 HS	90	case DEVICE_PATH_SUB_TYPE_MSG_ATAPI: {
	91	struct efi_device_path_atapi *ide =
	92	(struct efi_device_path_atapi *)dp;
	93	s += sprintf(s, "Ata(%d,%d,%d)", ide->primary_secondary,
	94	ide->slave_master, ide->logical_unit_number);
	95	break;
	96	}
	97	case DEVICE_PATH_SUB_TYPE_MSG_SCSI: {
	98	struct efi_device_path_scsi *ide =
	99	(struct efi_device_path_scsi *)dp;
	100	s += sprintf(s, "Scsi(%u,%u)", ide->target_id,
	101	ide->logical_unit_number);
	102	break;
	103	}
adae4313 RC	104	case DEVICE_PATH_SUB_TYPE_MSG_USB: {
	105	struct efi_device_path_usb *udp =
	106	(struct efi_device_path_usb *)dp;
6ea8b580	107	s += sprintf(s, "USB(0x%x,0x%x)", udp->parent_port_number,
adae4313 RC	108	udp->usb_interface);
	109	break;
	110	}
	111	case DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR: {
	112	struct efi_device_path_mac_addr *mdp =
	113	(struct efi_device_path_mac_addr *)dp;
	114
	115	if (mdp->if_type != 0 && mdp->if_type != 1)
	116	break;
	117
61aba193	118	s += sprintf(s, "MAC(%02x%02x%02x%02x%02x%02x,0x%1x)",
adae4313 RC	119	mdp->mac.addr[0], mdp->mac.addr[1],
	120	mdp->mac.addr[2], mdp->mac.addr[3],
	121	mdp->mac.addr[4], mdp->mac.addr[5],
	122	mdp->if_type);
	123
	124	break;
	125	}
	126	case DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS: {
	127	struct efi_device_path_usb_class *ucdp =
	128	(struct efi_device_path_usb_class *)dp;
	129
61aba193	130	s += sprintf(s, "USBClass(%x,%x,%x,%x,%x)",
adae4313 RC	131	ucdp->vendor_id, ucdp->product_id,
	132	ucdp->device_class, ucdp->device_subclass,
	133	ucdp->device_protocol);
	134
	135	break;
	136	}
	137	case DEVICE_PATH_SUB_TYPE_MSG_SD:
	138	case DEVICE_PATH_SUB_TYPE_MSG_MMC: {
	139	const char *typename =
	140	(dp->sub_type == DEVICE_PATH_SUB_TYPE_MSG_SD) ?
6ea8b580	141	"SD" : "eMMC";
adae4313 RC	142	struct efi_device_path_sd_mmc_path *sddp =
adae4313 RC	143	(struct efi_device_path_sd_mmc_path *)dp;
6ea8b580	144	s += sprintf(s, "%s(%u)", typename, sddp->slot_number);
adae4313 RC	145	break;
	146	}
	147	default:
	148	s = dp_unknown(s, dp);
	149	break;
	150	}
	151	return s;
	152	}
	153
6ea8b580 HS	154	/*
	155	* Convert a media device path node to text.
	156	*
	157	* @s output buffer
	158	* @dp device path node
	159	* @return next unused buffer address
	160	*/
adae4313 RC	161	static char dp_media(char s, struct efi_device_path *dp)
	162	{
	163	switch (dp->sub_type) {
	164	case DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH: {
	165	struct efi_device_path_hard_drive_path *hddp =
	166	(struct efi_device_path_hard_drive_path *)dp;
	167	void *sig = hddp->partition_signature;
6ea8b580 HS	168	u64 start;
	169	u64 end;
	170
	171	/* Copy from packed structure to aligned memory */
	172	memcpy(&start, &hddp->partition_start, sizeof(start));
	173	memcpy(&end, &hddp->partition_end, sizeof(end));
adae4313 RC	174
adae4313 RC	175	switch (hddp->signature_type) {
6ea8b580 HS	176	case SIG_TYPE_MBR: {
	177	u32 signature;
	178
	179	memcpy(&signature, sig, sizeof(signature));
	180	s += sprintf(
	181	s, "HD(%d,MBR,0x%08x,0x%llx,0x%llx)",
	182	hddp->partition_number, signature, start, end);
adae4313	183	break;
6ea8b580	184	}
adae4313	185	case SIG_TYPE_GUID:
6ea8b580 HS	186	s += sprintf(
	187	s, "HD(%d,GPT,%pUl,0x%llx,0x%llx)",
	188	hddp->partition_number, sig, start, end);
1a0b4d22	189	break;
adae4313	190	default:
6ea8b580 HS	191	s += sprintf(
	192	s, "HD(%d,0x%02x,0,0x%llx,0x%llx)",
	193	hddp->partition_number, hddp->partmap_type,
	194	start, end);
1a0b4d22	195	break;
adae4313 RC	196	}
	197
	198	break;
	199	}
	200	case DEVICE_PATH_SUB_TYPE_CDROM_PATH: {
	201	struct efi_device_path_cdrom_path *cddp =
	202	(struct efi_device_path_cdrom_path *)dp;
61aba193	203	s += sprintf(s, "CDROM(0x%x)", cddp->boot_entry);
adae4313 RC	204	break;
	205	}
	206	case DEVICE_PATH_SUB_TYPE_FILE_PATH: {
	207	struct efi_device_path_file_path *fp =
	208	(struct efi_device_path_file_path *)dp;
	209	int slen = (dp->length - sizeof(*dp)) / 2;
61aba193 HS	210	if (slen > MAX_NODE_LEN - 2)
	211	slen = MAX_NODE_LEN - 2;
	212	s += sprintf(s, "%-.*ls", slen, fp->str);
adae4313 RC	213	break;
	214	}
	215	default:
	216	s = dp_unknown(s, dp);
	217	break;
	218	}
	219	return s;
	220	}
	221
61aba193 HS	222	/*
	223	* Converts a single node to a char string.
	224	*
	225	* @buffer output buffer
	226	* @dp device path or node
	227	* @return end of string
	228	*/
	229	static char *efi_convert_single_device_node_to_text(
	230	char *buffer,
	231	struct efi_device_path *dp)
cc5b7081	232	{
61aba193	233	char *str = buffer;
cc5b7081	234
61aba193 HS	235	switch (dp->type) {
	236	case DEVICE_PATH_TYPE_HARDWARE_DEVICE:
	237	str = dp_hardware(str, dp);
	238	break;
	239	case DEVICE_PATH_TYPE_ACPI_DEVICE:
	240	str = dp_acpi(str, dp);
	241	break;
	242	case DEVICE_PATH_TYPE_MESSAGING_DEVICE:
	243	str = dp_msging(str, dp);
	244	break;
	245	case DEVICE_PATH_TYPE_MEDIA_DEVICE:
	246	str = dp_media(str, dp);
	247	break;
3c950b31 HS	248	case DEVICE_PATH_TYPE_END:
3c950b31 HS	249	break;
61aba193 HS	250	default:
61aba193 HS	251	str = dp_unknown(str, dp);
cc5b7081	252	}
cc5b7081	253
61aba193 HS	254	*str = '\0';
61aba193 HS	255	return str;
cc5b7081	256	}
cc5b7081	257
c4574208 HS	258	/*
	259	* This function implements the ConvertDeviceNodeToText service of the
	260	* EFI_DEVICE_PATH_TO_TEXT_PROTOCOL.
	261	* See the Unified Extensible Firmware Interface (UEFI) specification
	262	* for details.
	263	*
	264	* device_node device node to be converted
	265	* display_only true if the shorter text represenation shall be used
	266	* allow_shortcuts true if shortcut forms may be used
	267	* @return text represenation of the device path
	268	* NULL if out of memory of device_path is NULL
	269	*/
61aba193	270	static uint16_t EFIAPI *efi_convert_device_node_to_text(
9309a1b7	271	struct efi_device_path *device_node,
09c5ab90	272	bool display_only,
	273	bool allow_shortcuts)
	274	{
61aba193 HS	275	char str[MAX_NODE_LEN];
61aba193 HS	276	uint16_t *text = NULL;
09c5ab90	277
	278	EFI_ENTRY("%p, %d, %d", device_node, display_only, allow_shortcuts);
	279
61aba193 HS	280	if (!device_node)
	281	goto out;
	282	efi_convert_single_device_node_to_text(str, device_node);
	283
	284	text = efi_str_to_u16(str);
09c5ab90	285
61aba193	286	out:
09c5ab90	287	EFI_EXIT(EFI_SUCCESS);
61aba193	288	return text;
09c5ab90	289	}
09c5ab90	290
c4574208 HS	291	/*
	292	* This function implements the ConvertDevicePathToText service of the
	293	* EFI_DEVICE_PATH_TO_TEXT_PROTOCOL.
	294	* See the Unified Extensible Firmware Interface (UEFI) specification
	295	* for details.
	296	*
	297	* device_path device path to be converted
	298	* display_only true if the shorter text represenation shall be used
	299	* allow_shortcuts true if shortcut forms may be used
	300	* @return text represenation of the device path
	301	* NULL if out of memory of device_path is NULL
	302	*/
09c5ab90	303	static uint16_t EFIAPI *efi_convert_device_path_to_text(
9309a1b7	304	struct efi_device_path *device_path,
09c5ab90	305	bool display_only,
	306	bool allow_shortcuts)
	307	{
61aba193 HS	308	uint16_t *text = NULL;
	309	char buffer[MAX_PATH_LEN];
	310	char *str = buffer;
09c5ab90	311
	312	EFI_ENTRY("%p, %d, %d", device_path, display_only, allow_shortcuts);
	313
61aba193 HS	314	if (!device_path)
	315	goto out;
	316	while (device_path &&
	317	str + MAX_NODE_LEN < buffer + MAX_PATH_LEN) {
	318	*str++ = '/';
	319	str = efi_convert_single_device_node_to_text(str, device_path);
	320	device_path = efi_dp_next(device_path);
	321	}
	322
	323	text = efi_str_to_u16(buffer);
09c5ab90	324
61aba193	325	out:
09c5ab90	326	EFI_EXIT(EFI_SUCCESS);
61aba193	327	return text;
09c5ab90	328	}
09c5ab90	329
908cf9a3 HS	330	/* helper for debug prints.. efi_free_pool() the result. */
	331	uint16_t efi_dp_str(struct efi_device_path dp)
	332	{
	333	return EFI_CALL(efi_convert_device_path_to_text(dp, true, true));
	334	}
	335
cc5b7081	336	const struct efi_device_path_to_text_protocol efi_device_path_to_text = {
61aba193	337	.convert_device_node_to_text = efi_convert_device_node_to_text,
cc5b7081	338	.convert_device_path_to_text = efi_convert_device_path_to_text,
cc5b7081	339	};