17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
54f0dea16Scg  * Common Development and Distribution License (the "License").
64f0dea16Scg  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
21342440ecSPrasad Singamsetty 
227c478bd9Sstevel@tonic-gate /*
2380c797c0SSharath M Srinivasan  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
24bd93c05dSAlexander Eremin  * Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
25e088753cSToomas Soome  * Copyright 2014 Toomas Soome <tsoome@me.com>
267e934d3aSAndy Fiddaman  * Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
27fd797736SJohn Levon  * Copyright 2019 Joyent, Inc.
287c478bd9Sstevel@tonic-gate  */
297c478bd9Sstevel@tonic-gate 
307c478bd9Sstevel@tonic-gate #include <stdio.h>
317c478bd9Sstevel@tonic-gate #include <stdlib.h>
327c478bd9Sstevel@tonic-gate #include <errno.h>
337c478bd9Sstevel@tonic-gate #include <strings.h>
347c478bd9Sstevel@tonic-gate #include <unistd.h>
357e934d3aSAndy Fiddaman #include <smbios.h>
367c478bd9Sstevel@tonic-gate #include <uuid/uuid.h>
377c478bd9Sstevel@tonic-gate #include <libintl.h>
387c478bd9Sstevel@tonic-gate #include <sys/types.h>
397c478bd9Sstevel@tonic-gate #include <sys/dkio.h>
407c478bd9Sstevel@tonic-gate #include <sys/vtoc.h>
417c478bd9Sstevel@tonic-gate #include <sys/mhd.h>
427c478bd9Sstevel@tonic-gate #include <sys/param.h>
437c478bd9Sstevel@tonic-gate #include <sys/dktp/fdisk.h>
447c478bd9Sstevel@tonic-gate #include <sys/efi_partition.h>
457c478bd9Sstevel@tonic-gate #include <sys/byteorder.h>
467c478bd9Sstevel@tonic-gate #include <sys/ddi.h>
477c478bd9Sstevel@tonic-gate 
48d06952d0SToomas Soome /*
49d06952d0SToomas Soome  * The original conversion array used simple array index, but since
50d06952d0SToomas Soome  * we do need to take account of VTOC tag numbers from other systems,
51d06952d0SToomas Soome  * we need to provide tag values too, or the array will grow too large.
52d06952d0SToomas Soome  *
53d06952d0SToomas Soome  * Still we will fabricate the missing p_tag values.
54d06952d0SToomas Soome  */
557c478bd9Sstevel@tonic-gate static struct uuid_to_ptag {
567c478bd9Sstevel@tonic-gate 	struct uuid	uuid;
57d06952d0SToomas Soome 	ushort_t	p_tag;
587c478bd9Sstevel@tonic-gate } conversion_array[] = {
59d06952d0SToomas Soome 	{ EFI_UNUSED, V_UNASSIGNED },
60d06952d0SToomas Soome 	{ EFI_BOOT, V_BOOT },
61d06952d0SToomas Soome 	{ EFI_ROOT, V_ROOT },
62d06952d0SToomas Soome 	{ EFI_SWAP, V_SWAP },
63d06952d0SToomas Soome 	{ EFI_USR, V_USR },
64d06952d0SToomas Soome 	{ EFI_BACKUP, V_BACKUP },
65d06952d0SToomas Soome 	{ EFI_VAR, V_VAR },
66d06952d0SToomas Soome 	{ EFI_HOME, V_HOME },
67d06952d0SToomas Soome 	{ EFI_ALTSCTR, V_ALTSCTR },
68d06952d0SToomas Soome 	{ EFI_RESERVED, V_RESERVED },
69d06952d0SToomas Soome 	{ EFI_SYSTEM, V_SYSTEM },		/* V_SYSTEM is 0xc */
70d06952d0SToomas Soome 	{ EFI_LEGACY_MBR, 0x10 },
71d06952d0SToomas Soome 	{ EFI_SYMC_PUB, 0x11 },
72d06952d0SToomas Soome 	{ EFI_SYMC_CDS, 0x12 },
73d06952d0SToomas Soome 	{ EFI_MSFT_RESV, 0x13 },
74d06952d0SToomas Soome 	{ EFI_DELL_BASIC, 0x14 },
75d06952d0SToomas Soome 	{ EFI_DELL_RAID, 0x15 },
76d06952d0SToomas Soome 	{ EFI_DELL_SWAP, 0x16 },
77d06952d0SToomas Soome 	{ EFI_DELL_LVM, 0x17 },
78d06952d0SToomas Soome 	{ EFI_DELL_RESV, 0x19 },
79d06952d0SToomas Soome 	{ EFI_AAPL_HFS, 0x1a },
80d06952d0SToomas Soome 	{ EFI_AAPL_UFS, 0x1b },
81d06952d0SToomas Soome 	{ EFI_AAPL_ZFS, 0x1c },
82d06952d0SToomas Soome 	{ EFI_AAPL_APFS, 0x1d },
83d06952d0SToomas Soome 	{ EFI_BIOS_BOOT, V_BIOS_BOOT },		/* V_BIOS_BOOT is 0x18 */
84d06952d0SToomas Soome 	{ EFI_FREEBSD_BOOT,  V_FREEBSD_BOOT },
85d06952d0SToomas Soome 	{ EFI_FREEBSD_SWAP, V_FREEBSD_SWAP },
86d06952d0SToomas Soome 	{ EFI_FREEBSD_UFS, V_FREEBSD_UFS },
87d06952d0SToomas Soome 	{ EFI_FREEBSD_VINUM, V_FREEBSD_VINUM },
88d06952d0SToomas Soome 	{ EFI_FREEBSD_ZFS, V_FREEBSD_ZFS },
89d06952d0SToomas Soome 	{ EFI_FREEBSD_NANDFS, V_FREEBSD_NANDFS }
907c478bd9Sstevel@tonic-gate };
917c478bd9Sstevel@tonic-gate 
927c478bd9Sstevel@tonic-gate /*
937c478bd9Sstevel@tonic-gate  * Default vtoc information for non-SVr4 partitions
947c478bd9Sstevel@tonic-gate  */
957c478bd9Sstevel@tonic-gate struct dk_map2  default_vtoc_map[NDKMAP] = {
967c478bd9Sstevel@tonic-gate 	{	V_ROOT,		0	},		/* a - 0 */
977c478bd9Sstevel@tonic-gate 	{	V_SWAP,		V_UNMNT	},		/* b - 1 */
987c478bd9Sstevel@tonic-gate 	{	V_BACKUP,	V_UNMNT	},		/* c - 2 */
997c478bd9Sstevel@tonic-gate 	{	V_UNASSIGNED,	0	},		/* d - 3 */
1007c478bd9Sstevel@tonic-gate 	{	V_UNASSIGNED,	0	},		/* e - 4 */
1017c478bd9Sstevel@tonic-gate 	{	V_UNASSIGNED,	0	},		/* f - 5 */
1027c478bd9Sstevel@tonic-gate 	{	V_USR,		0	},		/* g - 6 */
1037c478bd9Sstevel@tonic-gate 	{	V_UNASSIGNED,	0	},		/* h - 7 */
1047c478bd9Sstevel@tonic-gate 
1057c478bd9Sstevel@tonic-gate #if defined(_SUNOS_VTOC_16)
1067c478bd9Sstevel@tonic-gate 
1077c478bd9Sstevel@tonic-gate #if defined(i386) || defined(__amd64)
1087c478bd9Sstevel@tonic-gate 	{	V_BOOT,		V_UNMNT	},		/* i - 8 */
1097c478bd9Sstevel@tonic-gate 	{	V_ALTSCTR,	0	},		/* j - 9 */
1107c478bd9Sstevel@tonic-gate 
1117c478bd9Sstevel@tonic-gate #else
1127c478bd9Sstevel@tonic-gate #error No VTOC format defined.
1137c478bd9Sstevel@tonic-gate #endif			/* defined(i386) */
1147c478bd9Sstevel@tonic-gate 
1157c478bd9Sstevel@tonic-gate 	{	V_UNASSIGNED,	0	},		/* k - 10 */
1167c478bd9Sstevel@tonic-gate 	{	V_UNASSIGNED,	0	},		/* l - 11 */
1177c478bd9Sstevel@tonic-gate 	{	V_UNASSIGNED,	0	},		/* m - 12 */
1187c478bd9Sstevel@tonic-gate 	{	V_UNASSIGNED,	0	},		/* n - 13 */
1197c478bd9Sstevel@tonic-gate 	{	V_UNASSIGNED,	0	},		/* o - 14 */
1207c478bd9Sstevel@tonic-gate 	{	V_UNASSIGNED,	0	},		/* p - 15 */
1217c478bd9Sstevel@tonic-gate #endif			/* defined(_SUNOS_VTOC_16) */
1227c478bd9Sstevel@tonic-gate };
1237c478bd9Sstevel@tonic-gate 
1247c478bd9Sstevel@tonic-gate #ifdef DEBUG
1257c478bd9Sstevel@tonic-gate int efi_debug = 1;
1267c478bd9Sstevel@tonic-gate #else
1277c478bd9Sstevel@tonic-gate int efi_debug = 0;
1287c478bd9Sstevel@tonic-gate #endif
1297c478bd9Sstevel@tonic-gate 
1307e934d3aSAndy Fiddaman #define	EFI_FIXES_DB "/usr/share/hwdata/efi.fixes"
1317e934d3aSAndy Fiddaman 
1327c478bd9Sstevel@tonic-gate extern unsigned int	efi_crc32(const unsigned char *, unsigned int);
1337c478bd9Sstevel@tonic-gate static int		efi_read(int, struct dk_gpt *);
1347c478bd9Sstevel@tonic-gate 
1357c478bd9Sstevel@tonic-gate static int
read_disk_info(int fd,diskaddr_t * capacity,uint_t * lbsize)1367c478bd9Sstevel@tonic-gate read_disk_info(int fd, diskaddr_t *capacity, uint_t *lbsize)
1377c478bd9Sstevel@tonic-gate {
1387c478bd9Sstevel@tonic-gate 	struct dk_minfo		disk_info;
1397c478bd9Sstevel@tonic-gate 
1407c478bd9Sstevel@tonic-gate 	if ((ioctl(fd, DKIOCGMEDIAINFO, (caddr_t)&disk_info)) == -1)
1417c478bd9Sstevel@tonic-gate 		return (errno);
1427c478bd9Sstevel@tonic-gate 	*capacity = disk_info.dki_capacity;
1437c478bd9Sstevel@tonic-gate 	*lbsize = disk_info.dki_lbsize;
1447c478bd9Sstevel@tonic-gate 	return (0);
1457c478bd9Sstevel@tonic-gate }
1467c478bd9Sstevel@tonic-gate 
1477c478bd9Sstevel@tonic-gate /*
1487c478bd9Sstevel@tonic-gate  * the number of blocks the EFI label takes up (round up to nearest
1497c478bd9Sstevel@tonic-gate  * block)
1507c478bd9Sstevel@tonic-gate  */
1517c478bd9Sstevel@tonic-gate #define	NBLOCKS(p, l)	(1 + ((((p) * (int)sizeof (efi_gpe_t))  + \
1527c478bd9Sstevel@tonic-gate 				((l) - 1)) / (l)))
1537c478bd9Sstevel@tonic-gate /* number of partitions -- limited by what we can malloc */
1547c478bd9Sstevel@tonic-gate #define	MAX_PARTS	((4294967295UL - sizeof (struct dk_gpt)) / \
1557c478bd9Sstevel@tonic-gate 			    sizeof (struct dk_part))
1567c478bd9Sstevel@tonic-gate 
157*62ce8e2eSToomas Soome /*
158*62ce8e2eSToomas Soome  * The EFI reserved partition size is 8 MiB. This calculates the number of
159*62ce8e2eSToomas Soome  * sectors required to store 8 MiB, taking into account the device's sector
160*62ce8e2eSToomas Soome  * size.
161*62ce8e2eSToomas Soome  */
162*62ce8e2eSToomas Soome uint_t
efi_reserved_sectors(dk_gpt_t * efi)163*62ce8e2eSToomas Soome efi_reserved_sectors(dk_gpt_t *efi)
164*62ce8e2eSToomas Soome {
165*62ce8e2eSToomas Soome 	/* roundup to sector size */
166*62ce8e2eSToomas Soome 	return ((EFI_MIN_RESV_SIZE * DEV_BSIZE + efi->efi_lbasize - 1) /
167*62ce8e2eSToomas Soome 	    efi->efi_lbasize);
168*62ce8e2eSToomas Soome }
169*62ce8e2eSToomas Soome 
1707c478bd9Sstevel@tonic-gate int
efi_alloc_and_init(int fd,uint32_t nparts,struct dk_gpt ** vtoc)1717c478bd9Sstevel@tonic-gate efi_alloc_and_init(int fd, uint32_t nparts, struct dk_gpt **vtoc)
1727c478bd9Sstevel@tonic-gate {
1737c478bd9Sstevel@tonic-gate 	diskaddr_t	capacity;
1747c478bd9Sstevel@tonic-gate 	uint_t		lbsize;
1757c478bd9Sstevel@tonic-gate 	uint_t		nblocks;
1767c478bd9Sstevel@tonic-gate 	size_t		length;
1777c478bd9Sstevel@tonic-gate 	struct dk_gpt	*vptr;
1787c478bd9Sstevel@tonic-gate 	struct uuid	uuid;
1797c478bd9Sstevel@tonic-gate 
1807c478bd9Sstevel@tonic-gate 	if (read_disk_info(fd, &capacity, &lbsize) != 0) {
1817c478bd9Sstevel@tonic-gate 		if (efi_debug)
1827c478bd9Sstevel@tonic-gate 			(void) fprintf(stderr,
1837c478bd9Sstevel@tonic-gate 			    "couldn't read disk information\n");
1847c478bd9Sstevel@tonic-gate 		return (-1);
1857c478bd9Sstevel@tonic-gate 	}
1867c478bd9Sstevel@tonic-gate 
1877c478bd9Sstevel@tonic-gate 	nblocks = NBLOCKS(nparts, lbsize);
1887c478bd9Sstevel@tonic-gate 	if ((nblocks * lbsize) < EFI_MIN_ARRAY_SIZE + lbsize) {
1897c478bd9Sstevel@tonic-gate 		/* 16K plus one block for the GPT */
1907c478bd9Sstevel@tonic-gate 		nblocks = EFI_MIN_ARRAY_SIZE / lbsize + 1;
1917c478bd9Sstevel@tonic-gate 	}
1927c478bd9Sstevel@tonic-gate 
1937c478bd9Sstevel@tonic-gate 	if (nparts > MAX_PARTS) {
1947c478bd9Sstevel@tonic-gate 		if (efi_debug) {
1957c478bd9Sstevel@tonic-gate 			(void) fprintf(stderr,
1967c478bd9Sstevel@tonic-gate 			"the maximum number of partitions supported is %lu\n",
1977c478bd9Sstevel@tonic-gate 			    MAX_PARTS);
1987c478bd9Sstevel@tonic-gate 		}
1997c478bd9Sstevel@tonic-gate 		return (-1);
2007c478bd9Sstevel@tonic-gate 	}
2017c478bd9Sstevel@tonic-gate 
2027c478bd9Sstevel@tonic-gate 	length = sizeof (struct dk_gpt) +
2037c478bd9Sstevel@tonic-gate 	    sizeof (struct dk_part) * (nparts - 1);
2047c478bd9Sstevel@tonic-gate 
2051b58875aSJohn Levon 	if ((*vtoc = calloc(1, length)) == NULL)
2067c478bd9Sstevel@tonic-gate 		return (-1);
2077c478bd9Sstevel@tonic-gate 
2087c478bd9Sstevel@tonic-gate 	vptr = *vtoc;
2097c478bd9Sstevel@tonic-gate 
2107c478bd9Sstevel@tonic-gate 	vptr->efi_version = EFI_VERSION_CURRENT;
2117c478bd9Sstevel@tonic-gate 	vptr->efi_lbasize = lbsize;
2127c478bd9Sstevel@tonic-gate 	vptr->efi_nparts = nparts;
2137c478bd9Sstevel@tonic-gate 	/*
2147c478bd9Sstevel@tonic-gate 	 * add one block here for the PMBR; on disks with a 512 byte
2157c478bd9Sstevel@tonic-gate 	 * block size and 128 or fewer partitions, efi_first_u_lba
2167c478bd9Sstevel@tonic-gate 	 * should work out to "34"
2177c478bd9Sstevel@tonic-gate 	 */
2187c478bd9Sstevel@tonic-gate 	vptr->efi_first_u_lba = nblocks + 1;
2197c478bd9Sstevel@tonic-gate 	vptr->efi_last_lba = capacity - 1;
220af007057Syl 	vptr->efi_altern_lba = capacity -1;
2217c478bd9Sstevel@tonic-gate 	vptr->efi_last_u_lba = vptr->efi_last_lba - nblocks;
22265908c77Syu, larry liu - Sun Microsystems - Beijing China 
2237c478bd9Sstevel@tonic-gate 	(void) uuid_generate((uchar_t *)&uuid);
2247c478bd9Sstevel@tonic-gate 	UUID_LE_CONVERT(vptr->efi_disk_uguid, uuid);
2257c478bd9Sstevel@tonic-gate 	return (0);
2267c478bd9Sstevel@tonic-gate }
2277c478bd9Sstevel@tonic-gate 
2287c478bd9Sstevel@tonic-gate /*
2297c478bd9Sstevel@tonic-gate  * Read EFI - return partition number upon success.
2307c478bd9Sstevel@tonic-gate  */
2317c478bd9Sstevel@tonic-gate int
efi_alloc_and_read(int fd,struct dk_gpt ** vtoc)2327c478bd9Sstevel@tonic-gate efi_alloc_and_read(int fd, struct dk_gpt **vtoc)
2337c478bd9Sstevel@tonic-gate {
2347c478bd9Sstevel@tonic-gate 	int			rval;
2357c478bd9Sstevel@tonic-gate 	uint32_t		nparts;
2367c478bd9Sstevel@tonic-gate 	int			length;
237fe12dc75SToomas Soome 	struct mboot		*mbr;
238fe12dc75SToomas Soome 	struct ipart		*ipart;
239fe12dc75SToomas Soome 	diskaddr_t		capacity;
240fe12dc75SToomas Soome 	uint_t			lbsize;
241fe12dc75SToomas Soome 	int			i;
242fe12dc75SToomas Soome 
243fe12dc75SToomas Soome 	if (read_disk_info(fd, &capacity, &lbsize) != 0)
244fe12dc75SToomas Soome 		return (VT_ERROR);
245fe12dc75SToomas Soome 
2461b58875aSJohn Levon 	if ((mbr = calloc(1, lbsize)) == NULL)
247fe12dc75SToomas Soome 		return (VT_ERROR);
248fe12dc75SToomas Soome 
249fe12dc75SToomas Soome 	if ((ioctl(fd, DKIOCGMBOOT, (caddr_t)mbr)) == -1) {
250fe12dc75SToomas Soome 		free(mbr);
251fe12dc75SToomas Soome 		return (VT_ERROR);
252fe12dc75SToomas Soome 	}
253fe12dc75SToomas Soome 
254fe12dc75SToomas Soome 	if (mbr->signature != MBB_MAGIC) {
255fe12dc75SToomas Soome 		free(mbr);
256fe12dc75SToomas Soome 		return (VT_EINVAL);
257fe12dc75SToomas Soome 	}
258fe12dc75SToomas Soome 	ipart = (struct ipart *)(uintptr_t)mbr->parts;
259fe12dc75SToomas Soome 
260fe12dc75SToomas Soome 	/* Check if we have partition with ID EFI_PMBR */
261fe12dc75SToomas Soome 	for (i = 0; i < FD_NUMPART; i++) {
262fe12dc75SToomas Soome 		if (ipart[i].systid == EFI_PMBR)
263fe12dc75SToomas Soome 			break;
264fe12dc75SToomas Soome 	}
265fe12dc75SToomas Soome 	free(mbr);
266fe12dc75SToomas Soome 	if (i == FD_NUMPART)
267fe12dc75SToomas Soome 		return (VT_EINVAL);
2687c478bd9Sstevel@tonic-gate 
2697c478bd9Sstevel@tonic-gate 	/* figure out the number of entries that would fit into 16K */
2707c478bd9Sstevel@tonic-gate 	nparts = EFI_MIN_ARRAY_SIZE / sizeof (efi_gpe_t);
2717c478bd9Sstevel@tonic-gate 	length = (int) sizeof (struct dk_gpt) +
272af007057Syl 	    (int) sizeof (struct dk_part) * (nparts - 1);
2731b58875aSJohn Levon 	if ((*vtoc = calloc(1, length)) == NULL)
2747c478bd9Sstevel@tonic-gate 		return (VT_ERROR);
2757c478bd9Sstevel@tonic-gate 
2767c478bd9Sstevel@tonic-gate 	(*vtoc)->efi_nparts = nparts;
2777c478bd9Sstevel@tonic-gate 	rval = efi_read(fd, *vtoc);
2787c478bd9Sstevel@tonic-gate 
2797c478bd9Sstevel@tonic-gate 	if ((rval == VT_EINVAL) && (*vtoc)->efi_nparts > nparts) {
2807c478bd9Sstevel@tonic-gate 		void *tmp;
2817c478bd9Sstevel@tonic-gate 		length = (int) sizeof (struct dk_gpt) +
282af007057Syl 		    (int) sizeof (struct dk_part) *
283af007057Syl 		    ((*vtoc)->efi_nparts - 1);
2847c478bd9Sstevel@tonic-gate 		nparts = (*vtoc)->efi_nparts;
2857c478bd9Sstevel@tonic-gate 		if ((tmp = realloc(*vtoc, length)) == NULL) {
2867c478bd9Sstevel@tonic-gate 			free (*vtoc);
2877c478bd9Sstevel@tonic-gate 			*vtoc = NULL;
2887c478bd9Sstevel@tonic-gate 			return (VT_ERROR);
2897c478bd9Sstevel@tonic-gate 		} else {
2907c478bd9Sstevel@tonic-gate 			*vtoc = tmp;
2917c478bd9Sstevel@tonic-gate 			rval = efi_read(fd, *vtoc);
2927c478bd9Sstevel@tonic-gate 		}
2937c478bd9Sstevel@tonic-gate 	}
2947c478bd9Sstevel@tonic-gate 
2957c478bd9Sstevel@tonic-gate 	if (rval < 0) {
2967c478bd9Sstevel@tonic-gate 		if (efi_debug) {
2977c478bd9Sstevel@tonic-gate 			(void) fprintf(stderr,
2987c478bd9Sstevel@tonic-gate 			    "read of EFI table failed, rval=%d\n", rval);
2997c478bd9Sstevel@tonic-gate 		}
3007c478bd9Sstevel@tonic-gate 		free (*vtoc);
3017c478bd9Sstevel@tonic-gate 		*vtoc = NULL;
3027c478bd9Sstevel@tonic-gate 	}
3037c478bd9Sstevel@tonic-gate 
3047c478bd9Sstevel@tonic-gate 	return (rval);
3057c478bd9Sstevel@tonic-gate }
3067c478bd9Sstevel@tonic-gate 
3077c478bd9Sstevel@tonic-gate static int
efi_ioctl(int fd,int cmd,dk_efi_t * dk_ioc)3087c478bd9Sstevel@tonic-gate efi_ioctl(int fd, int cmd, dk_efi_t *dk_ioc)
3097c478bd9Sstevel@tonic-gate {
3107c478bd9Sstevel@tonic-gate 	void *data = dk_ioc->dki_data;
3117c478bd9Sstevel@tonic-gate 	int error;
3127c478bd9Sstevel@tonic-gate 
3137c478bd9Sstevel@tonic-gate 	dk_ioc->dki_data_64 = (uint64_t)(uintptr_t)data;
3147c478bd9Sstevel@tonic-gate 	error = ioctl(fd, cmd, (void *)dk_ioc);
3157c478bd9Sstevel@tonic-gate 	dk_ioc->dki_data = data;
3167c478bd9Sstevel@tonic-gate 
3177c478bd9Sstevel@tonic-gate 	return (error);
3187c478bd9Sstevel@tonic-gate }
3197c478bd9Sstevel@tonic-gate 
3207c478bd9Sstevel@tonic-gate static int
check_label(int fd,dk_efi_t * dk_ioc)3217c478bd9Sstevel@tonic-gate check_label(int fd, dk_efi_t *dk_ioc)
3227c478bd9Sstevel@tonic-gate {
3237c478bd9Sstevel@tonic-gate 	efi_gpt_t		*efi;
3247c478bd9Sstevel@tonic-gate 	uint_t			crc;
3257c478bd9Sstevel@tonic-gate 
3267c478bd9Sstevel@tonic-gate 	if (efi_ioctl(fd, DKIOCGETEFI, dk_ioc) == -1) {
3277c478bd9Sstevel@tonic-gate 		switch (errno) {
3287c478bd9Sstevel@tonic-gate 		case EIO:
3297c478bd9Sstevel@tonic-gate 			return (VT_EIO);
3307c478bd9Sstevel@tonic-gate 		default:
3317c478bd9Sstevel@tonic-gate 			return (VT_ERROR);
3327c478bd9Sstevel@tonic-gate 		}
3337c478bd9Sstevel@tonic-gate 	}
3347c478bd9Sstevel@tonic-gate 	efi = dk_ioc->dki_data;
3357c478bd9Sstevel@tonic-gate 	if (efi->efi_gpt_Signature != LE_64(EFI_SIGNATURE)) {
3367c478bd9Sstevel@tonic-gate 		if (efi_debug)
3377c478bd9Sstevel@tonic-gate 			(void) fprintf(stderr,
3387c478bd9Sstevel@tonic-gate 			    "Bad EFI signature: 0x%llx != 0x%llx\n",
3397c478bd9Sstevel@tonic-gate 			    (long long)efi->efi_gpt_Signature,
3407c478bd9Sstevel@tonic-gate 			    (long long)LE_64(EFI_SIGNATURE));
3417c478bd9Sstevel@tonic-gate 		return (VT_EINVAL);
3427c478bd9Sstevel@tonic-gate 	}
3437c478bd9Sstevel@tonic-gate 
3447c478bd9Sstevel@tonic-gate 	/*
3457c478bd9Sstevel@tonic-gate 	 * check CRC of the header; the size of the header should
3467c478bd9Sstevel@tonic-gate 	 * never be larger than one block
3477c478bd9Sstevel@tonic-gate 	 */
3487c478bd9Sstevel@tonic-gate 	crc = efi->efi_gpt_HeaderCRC32;
3497c478bd9Sstevel@tonic-gate 	efi->efi_gpt_HeaderCRC32 = 0;
3507c478bd9Sstevel@tonic-gate 
3517c478bd9Sstevel@tonic-gate 	if (((len_t)LE_32(efi->efi_gpt_HeaderSize) > dk_ioc->dki_length) ||
3527c478bd9Sstevel@tonic-gate 	    crc != LE_32(efi_crc32((unsigned char *)efi,
3537c478bd9Sstevel@tonic-gate 	    LE_32(efi->efi_gpt_HeaderSize)))) {
3547c478bd9Sstevel@tonic-gate 		if (efi_debug)
3557c478bd9Sstevel@tonic-gate 			(void) fprintf(stderr,
356af007057Syl 			    "Bad EFI CRC: 0x%x != 0x%x\n",
357fd797736SJohn Levon 			    crc, LE_32(efi_crc32((unsigned char *)efi,
358fd797736SJohn Levon 			    LE_32(efi->efi_gpt_HeaderSize))));
3597c478bd9Sstevel@tonic-gate 		return (VT_EINVAL);
3607c478bd9Sstevel@tonic-gate 	}
3617c478bd9Sstevel@tonic-gate 
3627c478bd9Sstevel@tonic-gate 	return (0);
3637c478bd9Sstevel@tonic-gate }
3647c478bd9Sstevel@tonic-gate 
3657c478bd9Sstevel@tonic-gate static int
efi_read(int fd,struct dk_gpt * vtoc)3667c478bd9Sstevel@tonic-gate efi_read(int fd, struct dk_gpt *vtoc)
3677c478bd9Sstevel@tonic-gate {
3687c478bd9Sstevel@tonic-gate 	int			i, j;
3697c478bd9Sstevel@tonic-gate 	int			label_len;
3707c478bd9Sstevel@tonic-gate 	int			rval = 0;
371d84f0041SAlexandre Chartre 	int			vdc_flag = 0;
3727c478bd9Sstevel@tonic-gate 	struct dk_minfo		disk_info;
3737c478bd9Sstevel@tonic-gate 	dk_efi_t		dk_ioc;
3747c478bd9Sstevel@tonic-gate 	efi_gpt_t		*efi;
3757c478bd9Sstevel@tonic-gate 	efi_gpe_t		*efi_parts;
3767c478bd9Sstevel@tonic-gate 	struct dk_cinfo		dki_info;
3777c478bd9Sstevel@tonic-gate 	uint32_t		user_length;
37886bbaf93Scg 	boolean_t		legacy_label = B_FALSE;
3797c478bd9Sstevel@tonic-gate 
3807c478bd9Sstevel@tonic-gate 	/*
3817c478bd9Sstevel@tonic-gate 	 * get the partition number for this file descriptor.
3827c478bd9Sstevel@tonic-gate 	 */
3837c478bd9Sstevel@tonic-gate 	if (ioctl(fd, DKIOCINFO, (caddr_t)&dki_info) == -1) {
384af007057Syl 		if (efi_debug) {
385af007057Syl 			(void) fprintf(stderr, "DKIOCINFO errno 0x%x\n", errno);
386af007057Syl 		}
3877c478bd9Sstevel@tonic-gate 		switch (errno) {
3887c478bd9Sstevel@tonic-gate 		case EIO:
3897c478bd9Sstevel@tonic-gate 			return (VT_EIO);
3907c478bd9Sstevel@tonic-gate 		case EINVAL:
3917c478bd9Sstevel@tonic-gate 			return (VT_EINVAL);
3927c478bd9Sstevel@tonic-gate 		default:
3937c478bd9Sstevel@tonic-gate 			return (VT_ERROR);
3947c478bd9Sstevel@tonic-gate 		}
3957c478bd9Sstevel@tonic-gate 	}
3965f10ef69SYuri Pankov 
3975f10ef69SYuri Pankov 	if ((strncmp(dki_info.dki_cname, "vdc", 4) == 0) &&
398d84f0041SAlexandre Chartre 	    (strncmp(dki_info.dki_dname, "vdc", 4) == 0)) {
399d84f0041SAlexandre Chartre 		/*
400d84f0041SAlexandre Chartre 		 * The controller and drive name "vdc" (virtual disk client)
401d84f0041SAlexandre Chartre 		 * indicates a LDoms virtual disk.
402d84f0041SAlexandre Chartre 		 */
403d84f0041SAlexandre Chartre 		vdc_flag++;
4047c478bd9Sstevel@tonic-gate 	}
405d84f0041SAlexandre Chartre 
4067c478bd9Sstevel@tonic-gate 	/* get the LBA size */
4077c478bd9Sstevel@tonic-gate 	if (ioctl(fd, DKIOCGMEDIAINFO, (caddr_t)&disk_info) == -1) {
4087c478bd9Sstevel@tonic-gate 		if (efi_debug) {
4097c478bd9Sstevel@tonic-gate 			(void) fprintf(stderr,
4107c478bd9Sstevel@tonic-gate 			    "assuming LBA 512 bytes %d\n",
4117c478bd9Sstevel@tonic-gate 			    errno);
4127c478bd9Sstevel@tonic-gate 		}
4137c478bd9Sstevel@tonic-gate 		disk_info.dki_lbsize = DEV_BSIZE;
4147c478bd9Sstevel@tonic-gate 	}
4157c478bd9Sstevel@tonic-gate 	if (disk_info.dki_lbsize == 0) {
4167c478bd9Sstevel@tonic-gate 		if (efi_debug) {
4177c478bd9Sstevel@tonic-gate 			(void) fprintf(stderr,
4187c478bd9Sstevel@tonic-gate 			    "efi_read: assuming LBA 512 bytes\n");
4197c478bd9Sstevel@tonic-gate 		}
4207c478bd9Sstevel@tonic-gate 		disk_info.dki_lbsize = DEV_BSIZE;
4217c478bd9Sstevel@tonic-gate 	}
4227c478bd9Sstevel@tonic-gate 	/*
4237c478bd9Sstevel@tonic-gate 	 * Read the EFI GPT to figure out how many partitions we need
4247c478bd9Sstevel@tonic-gate 	 * to deal with.
4257c478bd9Sstevel@tonic-gate 	 */
4267c478bd9Sstevel@tonic-gate 	dk_ioc.dki_lba = 1;
4277c478bd9Sstevel@tonic-gate 	if (NBLOCKS(vtoc->efi_nparts, disk_info.dki_lbsize) < 34) {
4287c478bd9Sstevel@tonic-gate 		label_len = EFI_MIN_ARRAY_SIZE + disk_info.dki_lbsize;
4297c478bd9Sstevel@tonic-gate 	} else {
4307c478bd9Sstevel@tonic-gate 		label_len = vtoc->efi_nparts * (int) sizeof (efi_gpe_t) +
431af007057Syl 		    disk_info.dki_lbsize;
4327c478bd9Sstevel@tonic-gate 		if (label_len % disk_info.dki_lbsize) {
4337c478bd9Sstevel@tonic-gate 			/* pad to physical sector size */
4347c478bd9Sstevel@tonic-gate 			label_len += disk_info.dki_lbsize;
4357c478bd9Sstevel@tonic-gate 			label_len &= ~(disk_info.dki_lbsize - 1);
4367c478bd9Sstevel@tonic-gate 		}
4377c478bd9Sstevel@tonic-gate 	}
4387c478bd9Sstevel@tonic-gate 
4391b58875aSJohn Levon 	if ((dk_ioc.dki_data = calloc(1, label_len)) == NULL)
4407c478bd9Sstevel@tonic-gate 		return (VT_ERROR);
4417c478bd9Sstevel@tonic-gate 
442c7e1889fSyl 	dk_ioc.dki_length = disk_info.dki_lbsize;
4437c478bd9Sstevel@tonic-gate 	user_length = vtoc->efi_nparts;
4447c478bd9Sstevel@tonic-gate 	efi = dk_ioc.dki_data;
4455f10ef69SYuri Pankov 	if ((rval = check_label(fd, &dk_ioc)) == VT_EINVAL) {
44686bbaf93Scg 		/*
44786bbaf93Scg 		 * No valid label here; try the alternate. Note that here
44886bbaf93Scg 		 * we just read GPT header and save it into dk_ioc.data,
44986bbaf93Scg 		 * Later, we will read GUID partition entry array if we
45086bbaf93Scg 		 * can get valid GPT header.
45186bbaf93Scg 		 */
45286bbaf93Scg 
45386bbaf93Scg 		/*
45486bbaf93Scg 		 * This is a workaround for legacy systems. In the past, the
45586bbaf93Scg 		 * last sector of SCSI disk was invisible on x86 platform. At
45686bbaf93Scg 		 * that time, backup label was saved on the next to the last
45786bbaf93Scg 		 * sector. It is possible for users to move a disk from previous
45886bbaf93Scg 		 * solaris system to present system. Here, we attempt to search
45986bbaf93Scg 		 * legacy backup EFI label first.
46086bbaf93Scg 		 */
46186bbaf93Scg 		dk_ioc.dki_lba = disk_info.dki_capacity - 2;
4627c478bd9Sstevel@tonic-gate 		dk_ioc.dki_length = disk_info.dki_lbsize;
4634f0dea16Scg 		rval = check_label(fd, &dk_ioc);
46486bbaf93Scg 		if (rval == VT_EINVAL) {
4654f0dea16Scg 			/*
46686bbaf93Scg 			 * we didn't find legacy backup EFI label, try to
46786bbaf93Scg 			 * search backup EFI label in the last block.
4684f0dea16Scg 			 */
46986bbaf93Scg 			dk_ioc.dki_lba = disk_info.dki_capacity - 1;
4704f0dea16Scg 			dk_ioc.dki_length = disk_info.dki_lbsize;
4714f0dea16Scg 			rval = check_label(fd, &dk_ioc);
47286bbaf93Scg 			if (rval == 0) {
47386bbaf93Scg 				legacy_label = B_TRUE;
47486bbaf93Scg 				if (efi_debug)
47586bbaf93Scg 					(void) fprintf(stderr,
47686bbaf93Scg 					    "efi_read: primary label corrupt; "
47786bbaf93Scg 					    "using EFI backup label located on"
47886bbaf93Scg 					    " the last block\n");
4794f0dea16Scg 			}
48086bbaf93Scg 		} else {
48186bbaf93Scg 			if ((efi_debug) && (rval == 0))
48286bbaf93Scg 				(void) fprintf(stderr, "efi_read: primary label"
48386bbaf93Scg 				    " corrupt; using legacy EFI backup label "
48486bbaf93Scg 				    " located on the next to last block\n");
4854f0dea16Scg 		}
4864f0dea16Scg 
4874f0dea16Scg 		if (rval == 0) {
4887c478bd9Sstevel@tonic-gate 			dk_ioc.dki_lba = LE_64(efi->efi_gpt_PartitionEntryLBA);
4897c478bd9Sstevel@tonic-gate 			vtoc->efi_flags |= EFI_GPT_PRIMARY_CORRUPT;
4907c478bd9Sstevel@tonic-gate 			vtoc->efi_nparts =
4917c478bd9Sstevel@tonic-gate 			    LE_32(efi->efi_gpt_NumberOfPartitionEntries);
4927c478bd9Sstevel@tonic-gate 			/*
49386bbaf93Scg 			 * Partition tables are between backup GPT header
49486bbaf93Scg 			 * table and ParitionEntryLBA (the starting LBA of
49586bbaf93Scg 			 * the GUID partition entries array). Now that we
49686bbaf93Scg 			 * already got valid GPT header and saved it in
49786bbaf93Scg 			 * dk_ioc.dki_data, we try to get GUID partition
49886bbaf93Scg 			 * entry array here.
4997c478bd9Sstevel@tonic-gate 			 */
50065908c77Syu, larry liu - Sun Microsystems - Beijing China 			/* LINTED */
50165908c77Syu, larry liu - Sun Microsystems - Beijing China 			dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data
50265908c77Syu, larry liu - Sun Microsystems - Beijing China 			    + disk_info.dki_lbsize);
50386bbaf93Scg 			if (legacy_label)
50486bbaf93Scg 				dk_ioc.dki_length = disk_info.dki_capacity - 1 -
505af007057Syl 				    dk_ioc.dki_lba;
50686bbaf93Scg 			else
50786bbaf93Scg 				dk_ioc.dki_length = disk_info.dki_capacity - 2 -
508af007057Syl 				    dk_ioc.dki_lba;
5097c478bd9Sstevel@tonic-gate 			dk_ioc.dki_length *= disk_info.dki_lbsize;
51086bbaf93Scg 			if (dk_ioc.dki_length >
51186bbaf93Scg 			    ((len_t)label_len - sizeof (*dk_ioc.dki_data))) {
5127c478bd9Sstevel@tonic-gate 				rval = VT_EINVAL;
5137c478bd9Sstevel@tonic-gate 			} else {
51486bbaf93Scg 				/*
51586bbaf93Scg 				 * read GUID partition entry array
51686bbaf93Scg 				 */
5177c478bd9Sstevel@tonic-gate 				rval = efi_ioctl(fd, DKIOCGETEFI, &dk_ioc);
5187c478bd9Sstevel@tonic-gate 			}
5197c478bd9Sstevel@tonic-gate 		}
520d84f0041SAlexandre Chartre 
521d84f0041SAlexandre Chartre 	} else if (rval == 0) {
522d84f0041SAlexandre Chartre 
523c7e1889fSyl 		dk_ioc.dki_lba = LE_64(efi->efi_gpt_PartitionEntryLBA);
52465908c77Syu, larry liu - Sun Microsystems - Beijing China 		/* LINTED */
52565908c77Syu, larry liu - Sun Microsystems - Beijing China 		dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data
52665908c77Syu, larry liu - Sun Microsystems - Beijing China 		    + disk_info.dki_lbsize);
527c7e1889fSyl 		dk_ioc.dki_length = label_len - disk_info.dki_lbsize;
528c7e1889fSyl 		rval = efi_ioctl(fd, DKIOCGETEFI, &dk_ioc);
529d84f0041SAlexandre Chartre 
530d84f0041SAlexandre Chartre 	} else if (vdc_flag && rval == VT_ERROR && errno == EINVAL) {
531d84f0041SAlexandre Chartre 		/*
532d84f0041SAlexandre Chartre 		 * When the device is a LDoms virtual disk, the DKIOCGETEFI
533d84f0041SAlexandre Chartre 		 * ioctl can fail with EINVAL if the virtual disk backend
534d84f0041SAlexandre Chartre 		 * is a ZFS volume serviced by a domain running an old version
535d84f0041SAlexandre Chartre 		 * of Solaris. This is because the DKIOCGETEFI ioctl was
536d84f0041SAlexandre Chartre 		 * initially incorrectly implemented for a ZFS volume and it
537d84f0041SAlexandre Chartre 		 * expected the GPT and GPE to be retrieved with a single ioctl.
538d84f0041SAlexandre Chartre 		 * So we try to read the GPT and the GPE using that old style
539d84f0041SAlexandre Chartre 		 * ioctl.
540d84f0041SAlexandre Chartre 		 */
541d84f0041SAlexandre Chartre 		dk_ioc.dki_lba = 1;
542d84f0041SAlexandre Chartre 		dk_ioc.dki_length = label_len;
543d84f0041SAlexandre Chartre 		rval = check_label(fd, &dk_ioc);
5447c478bd9Sstevel@tonic-gate 	}
545d84f0041SAlexandre Chartre 
5467c478bd9Sstevel@tonic-gate 	if (rval < 0) {
5477c478bd9Sstevel@tonic-gate 		free(efi);
5487c478bd9Sstevel@tonic-gate 		return (rval);
5497c478bd9Sstevel@tonic-gate 	}
5507c478bd9Sstevel@tonic-gate 
5517c478bd9Sstevel@tonic-gate 	/* LINTED -- always longlong aligned */
552c7e1889fSyl 	efi_parts = (efi_gpe_t *)(((char *)efi) + disk_info.dki_lbsize);
5537c478bd9Sstevel@tonic-gate 
5547c478bd9Sstevel@tonic-gate 	/*
5557c478bd9Sstevel@tonic-gate 	 * Assemble this into a "dk_gpt" struct for easier
5567c478bd9Sstevel@tonic-gate 	 * digestibility by applications.
5577c478bd9Sstevel@tonic-gate 	 */
5587c478bd9Sstevel@tonic-gate 	vtoc->efi_version = LE_32(efi->efi_gpt_Revision);
5597c478bd9Sstevel@tonic-gate 	vtoc->efi_nparts = LE_32(efi->efi_gpt_NumberOfPartitionEntries);
5607c478bd9Sstevel@tonic-gate 	vtoc->efi_part_size = LE_32(efi->efi_gpt_SizeOfPartitionEntry);
5617c478bd9Sstevel@tonic-gate 	vtoc->efi_lbasize = disk_info.dki_lbsize;
5627c478bd9Sstevel@tonic-gate 	vtoc->efi_last_lba = disk_info.dki_capacity - 1;
5637c478bd9Sstevel@tonic-gate 	vtoc->efi_first_u_lba = LE_64(efi->efi_gpt_FirstUsableLBA);
5647c478bd9Sstevel@tonic-gate 	vtoc->efi_last_u_lba = LE_64(efi->efi_gpt_LastUsableLBA);
565af007057Syl 	vtoc->efi_altern_lba = LE_64(efi->efi_gpt_AlternateLBA);
5667c478bd9Sstevel@tonic-gate 	UUID_LE_CONVERT(vtoc->efi_disk_uguid, efi->efi_gpt_DiskGUID);
5677c478bd9Sstevel@tonic-gate 
5687c478bd9Sstevel@tonic-gate 	/*
5697c478bd9Sstevel@tonic-gate 	 * If the array the user passed in is too small, set the length
5707c478bd9Sstevel@tonic-gate 	 * to what it needs to be and return
5717c478bd9Sstevel@tonic-gate 	 */
5727c478bd9Sstevel@tonic-gate 	if (user_length < vtoc->efi_nparts) {
5737c478bd9Sstevel@tonic-gate 		return (VT_EINVAL);
5747c478bd9Sstevel@tonic-gate 	}
5757c478bd9Sstevel@tonic-gate 
5767c478bd9Sstevel@tonic-gate 	for (i = 0; i < vtoc->efi_nparts; i++) {
5777c478bd9Sstevel@tonic-gate 
578af007057Syl 		UUID_LE_CONVERT(vtoc->efi_parts[i].p_guid,
579af007057Syl 		    efi_parts[i].efi_gpe_PartitionTypeGUID);
580af007057Syl 
581af007057Syl 		for (j = 0;
582af007057Syl 		    j < sizeof (conversion_array)
583af007057Syl 		    / sizeof (struct uuid_to_ptag); j++) {
584af007057Syl 
585af007057Syl 			if (bcmp(&vtoc->efi_parts[i].p_guid,
586af007057Syl 			    &conversion_array[j].uuid,
587af007057Syl 			    sizeof (struct uuid)) == 0) {
588d06952d0SToomas Soome 				vtoc->efi_parts[i].p_tag =
589d06952d0SToomas Soome 				    conversion_array[j].p_tag;
590af007057Syl 				break;
591af007057Syl 			}
592af007057Syl 		}
593af007057Syl 		if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED)
594af007057Syl 			continue;
595af007057Syl 		vtoc->efi_parts[i].p_flag =
596af007057Syl 		    LE_16(efi_parts[i].efi_gpe_Attributes.PartitionAttrs);
597af007057Syl 		vtoc->efi_parts[i].p_start =
598af007057Syl 		    LE_64(efi_parts[i].efi_gpe_StartingLBA);
599af007057Syl 		vtoc->efi_parts[i].p_size =
600af007057Syl 		    LE_64(efi_parts[i].efi_gpe_EndingLBA) -
6017c478bd9Sstevel@tonic-gate 		    vtoc->efi_parts[i].p_start + 1;
602af007057Syl 		for (j = 0; j < EFI_PART_NAME_LEN; j++) {
603af007057Syl 			vtoc->efi_parts[i].p_name[j] =
604af007057Syl 			    (uchar_t)LE_16(
605af007057Syl 			    efi_parts[i].efi_gpe_PartitionName[j]);
606af007057Syl 		}
6077c478bd9Sstevel@tonic-gate 
608af007057Syl 		UUID_LE_CONVERT(vtoc->efi_parts[i].p_uguid,
609af007057Syl 		    efi_parts[i].efi_gpe_UniquePartitionGUID);
6107c478bd9Sstevel@tonic-gate 	}
6117c478bd9Sstevel@tonic-gate 	free(efi);
6127c478bd9Sstevel@tonic-gate 
6137c478bd9Sstevel@tonic-gate 	return (dki_info.dki_partition);
6147c478bd9Sstevel@tonic-gate }
6157c478bd9Sstevel@tonic-gate 
6167e934d3aSAndy Fiddaman static void
hardware_workarounds(int * slot,int * active)6177e934d3aSAndy Fiddaman hardware_workarounds(int *slot, int *active)
6187e934d3aSAndy Fiddaman {
6197e934d3aSAndy Fiddaman 	smbios_struct_t s_sys, s_mb;
6207e934d3aSAndy Fiddaman 	smbios_info_t sys, mb;
6217e934d3aSAndy Fiddaman 	smbios_hdl_t *shp;
6227e934d3aSAndy Fiddaman 	char buf[0x400];
6237e934d3aSAndy Fiddaman 	FILE *fp;
6247e934d3aSAndy Fiddaman 	int err;
6257e934d3aSAndy Fiddaman 
6267e934d3aSAndy Fiddaman 	if ((fp = fopen(EFI_FIXES_DB, "rF")) == NULL)
6277e934d3aSAndy Fiddaman 		return;
6287e934d3aSAndy Fiddaman 
6297e934d3aSAndy Fiddaman 	if ((shp = smbios_open(NULL, SMB_VERSION, 0, &err)) == NULL) {
6307e934d3aSAndy Fiddaman 		if (efi_debug)
6317e934d3aSAndy Fiddaman 			(void) fprintf(stderr,
6327e934d3aSAndy Fiddaman 			    "libefi failed to load SMBIOS: %s\n",
6337e934d3aSAndy Fiddaman 			    smbios_errmsg(err));
6347e934d3aSAndy Fiddaman 		(void) fclose(fp);
6357e934d3aSAndy Fiddaman 		return;
6367e934d3aSAndy Fiddaman 	}
6377e934d3aSAndy Fiddaman 
6387e934d3aSAndy Fiddaman 	if (smbios_lookup_type(shp, SMB_TYPE_SYSTEM, &s_sys) == SMB_ERR ||
6397e934d3aSAndy Fiddaman 	    smbios_info_common(shp, s_sys.smbstr_id, &sys) == SMB_ERR)
6407e934d3aSAndy Fiddaman 		(void) memset(&sys, '\0', sizeof (sys));
6417e934d3aSAndy Fiddaman 	if (smbios_lookup_type(shp, SMB_TYPE_BASEBOARD, &s_mb) == SMB_ERR ||
6427e934d3aSAndy Fiddaman 	    smbios_info_common(shp, s_mb.smbstr_id, &mb) == SMB_ERR)
6437e934d3aSAndy Fiddaman 		(void) memset(&mb, '\0', sizeof (mb));
6447e934d3aSAndy Fiddaman 
6457e934d3aSAndy Fiddaman 	while (fgets(buf, sizeof (buf), fp) != NULL) {
6467e934d3aSAndy Fiddaman 		char *tok, *val, *end;
6477e934d3aSAndy Fiddaman 
6487e934d3aSAndy Fiddaman 		tok = buf + strspn(buf, " \t");
6497e934d3aSAndy Fiddaman 		if (*tok == '#')
6507e934d3aSAndy Fiddaman 			continue;
6517e934d3aSAndy Fiddaman 		while (*tok != '\0') {
6527e934d3aSAndy Fiddaman 			tok += strspn(tok, " \t");
6537e934d3aSAndy Fiddaman 			if ((val = strchr(tok, '=')) == NULL)
6547e934d3aSAndy Fiddaman 				break;
6557e934d3aSAndy Fiddaman 			*val++ = '\0';
6567e934d3aSAndy Fiddaman 			if (*val == '"')
6577e934d3aSAndy Fiddaman 				end = strchr(++val, '"');
6587e934d3aSAndy Fiddaman 			else
6597e934d3aSAndy Fiddaman 				end = strpbrk(val, " \t\n");
6607e934d3aSAndy Fiddaman 			if (end == NULL)
6617e934d3aSAndy Fiddaman 				break;
6627e934d3aSAndy Fiddaman 			*end++ = '\0';
6637e934d3aSAndy Fiddaman 
6647e934d3aSAndy Fiddaman 			if (strcmp(tok, "sys.manufacturer") == 0 &&
6657e934d3aSAndy Fiddaman 			    (sys.smbi_manufacturer == NULL ||
6667e934d3aSAndy Fiddaman 			    strcasecmp(val, sys.smbi_manufacturer)))
6677e934d3aSAndy Fiddaman 				break;
6687e934d3aSAndy Fiddaman 			if (strcmp(tok, "sys.product") == 0 &&
6697e934d3aSAndy Fiddaman 			    (sys.smbi_product == NULL ||
6707e934d3aSAndy Fiddaman 			    strcasecmp(val, sys.smbi_product)))
6717e934d3aSAndy Fiddaman 				break;
6727e934d3aSAndy Fiddaman 			if (strcmp(tok, "sys.version") == 0 &&
6737e934d3aSAndy Fiddaman 			    (sys.smbi_version == NULL ||
6747e934d3aSAndy Fiddaman 			    strcasecmp(val, sys.smbi_version)))
6757e934d3aSAndy Fiddaman 				break;
6767e934d3aSAndy Fiddaman 			if (strcmp(tok, "mb.manufacturer") == 0 &&
6777e934d3aSAndy Fiddaman 			    (mb.smbi_manufacturer == NULL ||
6787e934d3aSAndy Fiddaman 			    strcasecmp(val, mb.smbi_manufacturer)))
6797e934d3aSAndy Fiddaman 				break;
6807e934d3aSAndy Fiddaman 			if (strcmp(tok, "mb.product") == 0 &&
6817e934d3aSAndy Fiddaman 			    (mb.smbi_product == NULL ||
6827e934d3aSAndy Fiddaman 			    strcasecmp(val, mb.smbi_product)))
6837e934d3aSAndy Fiddaman 				break;
6847e934d3aSAndy Fiddaman 			if (strcmp(tok, "mb.version") == 0 &&
6857e934d3aSAndy Fiddaman 			    (mb.smbi_version == NULL ||
6867e934d3aSAndy Fiddaman 			    strcasecmp(val, mb.smbi_version)))
6877e934d3aSAndy Fiddaman 				break;
6887e934d3aSAndy Fiddaman 
6897e934d3aSAndy Fiddaman 			if (strcmp(tok, "pmbr_slot") == 0) {
6907e934d3aSAndy Fiddaman 				*slot = atoi(val);
6917e934d3aSAndy Fiddaman 				if (*slot < 0 || *slot > 3)
6927e934d3aSAndy Fiddaman 					*slot = 0;
6937e934d3aSAndy Fiddaman 				if (efi_debug)
6947e934d3aSAndy Fiddaman 					(void) fprintf(stderr,
6957e934d3aSAndy Fiddaman 					    "Using slot %d\n", *slot);
6967e934d3aSAndy Fiddaman 			}
6977e934d3aSAndy Fiddaman 
6987e934d3aSAndy Fiddaman 			if (strcmp(tok, "pmbr_active") == 0) {
6997e934d3aSAndy Fiddaman 				*active = atoi(val);
7007e934d3aSAndy Fiddaman 				if (*active < 0 || *active > 1)
7017e934d3aSAndy Fiddaman 					*active = 0;
7027e934d3aSAndy Fiddaman 				if (efi_debug)
7037e934d3aSAndy Fiddaman 					(void) fprintf(stderr,
7047e934d3aSAndy Fiddaman 					    "Using active %d\n", *active);
7057e934d3aSAndy Fiddaman 			}
7067e934d3aSAndy Fiddaman 
7077e934d3aSAndy Fiddaman 			tok = end;
7087e934d3aSAndy Fiddaman 		}
7097e934d3aSAndy Fiddaman 	}
7107e934d3aSAndy Fiddaman 	(void) fclose(fp);
7117e934d3aSAndy Fiddaman 	smbios_close(shp);
7127e934d3aSAndy Fiddaman }
7137e934d3aSAndy Fiddaman 
7147c478bd9Sstevel@tonic-gate /* writes a "protective" MBR */
7157c478bd9Sstevel@tonic-gate static int
write_pmbr(int fd,struct dk_gpt * vtoc)7167c478bd9Sstevel@tonic-gate write_pmbr(int fd, struct dk_gpt *vtoc)
7177c478bd9Sstevel@tonic-gate {
7187c478bd9Sstevel@tonic-gate 	dk_efi_t	dk_ioc;
7197c478bd9Sstevel@tonic-gate 	struct mboot	mb;
7207c478bd9Sstevel@tonic-gate 	uchar_t		*cp;
7217c478bd9Sstevel@tonic-gate 	diskaddr_t	size_in_lba;
72265908c77Syu, larry liu - Sun Microsystems - Beijing China 	uchar_t		*buf;
7237e934d3aSAndy Fiddaman 	int		len, slot, active;
7247e934d3aSAndy Fiddaman 
7257e934d3aSAndy Fiddaman 	slot = active = 0;
7267e934d3aSAndy Fiddaman 
7277e934d3aSAndy Fiddaman 	hardware_workarounds(&slot, &active);
72865908c77Syu, larry liu - Sun Microsystems - Beijing China 
72965908c77Syu, larry liu - Sun Microsystems - Beijing China 	len = (vtoc->efi_lbasize == 0) ? sizeof (mb) : vtoc->efi_lbasize;
730fd797736SJohn Levon 	buf = calloc(1, len);
7317c478bd9Sstevel@tonic-gate 
732987e90dcSxl 	/*
733987e90dcSxl 	 * Preserve any boot code and disk signature if the first block is
734987e90dcSxl 	 * already an MBR.
735987e90dcSxl 	 */
736987e90dcSxl 	dk_ioc.dki_lba = 0;
73765908c77Syu, larry liu - Sun Microsystems - Beijing China 	dk_ioc.dki_length = len;
738987e90dcSxl 	/* LINTED -- always longlong aligned */
73965908c77Syu, larry liu - Sun Microsystems - Beijing China 	dk_ioc.dki_data = (efi_gpt_t *)buf;
74065908c77Syu, larry liu - Sun Microsystems - Beijing China 	if (efi_ioctl(fd, DKIOCGETEFI, &dk_ioc) == -1) {
741286eb3edSRichard Yao 		(void) memcpy(&mb, buf, sizeof (mb));
742987e90dcSxl 		bzero(&mb, sizeof (mb));
743987e90dcSxl 		mb.signature = LE_16(MBB_MAGIC);
74465908c77Syu, larry liu - Sun Microsystems - Beijing China 	} else {
745286eb3edSRichard Yao 		(void) memcpy(&mb, buf, sizeof (mb));
74665908c77Syu, larry liu - Sun Microsystems - Beijing China 		if (mb.signature != LE_16(MBB_MAGIC)) {
74765908c77Syu, larry liu - Sun Microsystems - Beijing China 			bzero(&mb, sizeof (mb));
74865908c77Syu, larry liu - Sun Microsystems - Beijing China 			mb.signature = LE_16(MBB_MAGIC);
74965908c77Syu, larry liu - Sun Microsystems - Beijing China 		}
750987e90dcSxl 	}
75165908c77Syu, larry liu - Sun Microsystems - Beijing China 
7527c478bd9Sstevel@tonic-gate 	bzero(&mb.parts, sizeof (mb.parts));
7537e934d3aSAndy Fiddaman 	cp = (uchar_t *)&mb.parts[slot * sizeof (struct ipart)];
7547c478bd9Sstevel@tonic-gate 	/* bootable or not */
7557e934d3aSAndy Fiddaman 	*cp++ = active ? ACTIVE : NOTACTIVE;
756fd797736SJohn Levon 	/* beginning CHS; same as starting LBA (but one-based) */
757fd797736SJohn Levon 	*cp++ = 0x0;
758fd797736SJohn Levon 	*cp++ = 0x2;
759fd797736SJohn Levon 	*cp++ = 0x0;
7607c478bd9Sstevel@tonic-gate 	/* OS type */
7617c478bd9Sstevel@tonic-gate 	*cp++ = EFI_PMBR;
7627c478bd9Sstevel@tonic-gate 	/* ending CHS; 0xffffff if not representable */
7637c478bd9Sstevel@tonic-gate 	*cp++ = 0xff;
7647c478bd9Sstevel@tonic-gate 	*cp++ = 0xff;
7657c478bd9Sstevel@tonic-gate 	*cp++ = 0xff;
7667c478bd9Sstevel@tonic-gate 	/* starting LBA: 1 (little endian format) by EFI definition */
7677c478bd9Sstevel@tonic-gate 	*cp++ = 0x01;
7687c478bd9Sstevel@tonic-gate 	*cp++ = 0x00;
7697c478bd9Sstevel@tonic-gate 	*cp++ = 0x00;
7707c478bd9Sstevel@tonic-gate 	*cp++ = 0x00;
7717c478bd9Sstevel@tonic-gate 	/* ending LBA: last block on the disk (little endian format) */
7727c478bd9Sstevel@tonic-gate 	size_in_lba = vtoc->efi_last_lba;
7737c478bd9Sstevel@tonic-gate 	if (size_in_lba < 0xffffffff) {
7747c478bd9Sstevel@tonic-gate 		*cp++ = (size_in_lba & 0x000000ff);
7757c478bd9Sstevel@tonic-gate 		*cp++ = (size_in_lba & 0x0000ff00) >> 8;
7767c478bd9Sstevel@tonic-gate 		*cp++ = (size_in_lba & 0x00ff0000) >> 16;
7777c478bd9Sstevel@tonic-gate 		*cp++ = (size_in_lba & 0xff000000) >> 24;
7787c478bd9Sstevel@tonic-gate 	} else {
7797c478bd9Sstevel@tonic-gate 		*cp++ = 0xff;
7807c478bd9Sstevel@tonic-gate 		*cp++ = 0xff;
7817c478bd9Sstevel@tonic-gate 		*cp++ = 0xff;
7827c478bd9Sstevel@tonic-gate 		*cp++ = 0xff;
7837c478bd9Sstevel@tonic-gate 	}
78465908c77Syu, larry liu - Sun Microsystems - Beijing China 
785286eb3edSRichard Yao 	(void) memcpy(buf, &mb, sizeof (mb));
7867c478bd9Sstevel@tonic-gate 	/* LINTED -- always longlong aligned */
78765908c77Syu, larry liu - Sun Microsystems - Beijing China 	dk_ioc.dki_data = (efi_gpt_t *)buf;
7887c478bd9Sstevel@tonic-gate 	dk_ioc.dki_lba = 0;
78965908c77Syu, larry liu - Sun Microsystems - Beijing China 	dk_ioc.dki_length = len;
7907c478bd9Sstevel@tonic-gate 	if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) {
79165908c77Syu, larry liu - Sun Microsystems - Beijing China 		free(buf);
7927c478bd9Sstevel@tonic-gate 		switch (errno) {
7937c478bd9Sstevel@tonic-gate 		case EIO:
7947c478bd9Sstevel@tonic-gate 			return (VT_EIO);
7957c478bd9Sstevel@tonic-gate 		case EINVAL:
7967c478bd9Sstevel@tonic-gate 			return (VT_EINVAL);
7977c478bd9Sstevel@tonic-gate 		default:
7987c478bd9Sstevel@tonic-gate 			return (VT_ERROR);
7997c478bd9Sstevel@tonic-gate 		}
8007c478bd9Sstevel@tonic-gate 	}
80165908c77Syu, larry liu - Sun Microsystems - Beijing China 	free(buf);
8027c478bd9Sstevel@tonic-gate 	return (0);
8037c478bd9Sstevel@tonic-gate }
8047c478bd9Sstevel@tonic-gate 
8057c478bd9Sstevel@tonic-gate /* make sure the user specified something reasonable */
8067c478bd9Sstevel@tonic-gate static int
check_input(struct dk_gpt * vtoc)8077c478bd9Sstevel@tonic-gate check_input(struct dk_gpt *vtoc)
8087c478bd9Sstevel@tonic-gate {
8097c478bd9Sstevel@tonic-gate 	int			resv_part = -1;
8107c478bd9Sstevel@tonic-gate 	int			i, j;
8117c478bd9Sstevel@tonic-gate 	diskaddr_t		istart, jstart, isize, jsize, endsect;
8127c478bd9Sstevel@tonic-gate 
8137c478bd9Sstevel@tonic-gate 	/*
8147c478bd9Sstevel@tonic-gate 	 * Sanity-check the input (make sure no partitions overlap)
8157c478bd9Sstevel@tonic-gate 	 */
8167c478bd9Sstevel@tonic-gate 	for (i = 0; i < vtoc->efi_nparts; i++) {
8177c478bd9Sstevel@tonic-gate 		/* It can't be unassigned and have an actual size */
8187c478bd9Sstevel@tonic-gate 		if ((vtoc->efi_parts[i].p_tag == V_UNASSIGNED) &&
8197c478bd9Sstevel@tonic-gate 		    (vtoc->efi_parts[i].p_size != 0)) {
8207c478bd9Sstevel@tonic-gate 			if (efi_debug) {
8217c478bd9Sstevel@tonic-gate 				(void) fprintf(stderr,
8227c478bd9Sstevel@tonic-gate "partition %d is \"unassigned\" but has a size of %llu",
8237c478bd9Sstevel@tonic-gate 				    i,
8247c478bd9Sstevel@tonic-gate 				    vtoc->efi_parts[i].p_size);
8257c478bd9Sstevel@tonic-gate 			}
8267c478bd9Sstevel@tonic-gate 			return (VT_EINVAL);
8277c478bd9Sstevel@tonic-gate 		}
8287c478bd9Sstevel@tonic-gate 		if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) {
829f2be5148Sszhou 			if (uuid_is_null((uchar_t *)&vtoc->efi_parts[i].p_guid))
830f2be5148Sszhou 				continue;
831f2be5148Sszhou 			/* we have encountered an unknown uuid */
832f2be5148Sszhou 			vtoc->efi_parts[i].p_tag = 0xff;
8337c478bd9Sstevel@tonic-gate 		}
8347c478bd9Sstevel@tonic-gate 		if (vtoc->efi_parts[i].p_tag == V_RESERVED) {
8357c478bd9Sstevel@tonic-gate 			if (resv_part != -1) {
8367c478bd9Sstevel@tonic-gate 				if (efi_debug) {
837af007057Syl 					(void) fprintf(stderr,
8387c478bd9Sstevel@tonic-gate "found duplicate reserved partition at %d\n",
839af007057Syl 					    i);
8407c478bd9Sstevel@tonic-gate 				}
8417c478bd9Sstevel@tonic-gate 				return (VT_EINVAL);
8427c478bd9Sstevel@tonic-gate 			}
8437c478bd9Sstevel@tonic-gate 			resv_part = i;
8447c478bd9Sstevel@tonic-gate 		}
8457c478bd9Sstevel@tonic-gate 		if ((vtoc->efi_parts[i].p_start < vtoc->efi_first_u_lba) ||
8467c478bd9Sstevel@tonic-gate 		    (vtoc->efi_parts[i].p_start > vtoc->efi_last_u_lba)) {
8477c478bd9Sstevel@tonic-gate 			if (efi_debug) {
8487c478bd9Sstevel@tonic-gate 				(void) fprintf(stderr,
8497c478bd9Sstevel@tonic-gate 				    "Partition %d starts at %llu.  ",
8507c478bd9Sstevel@tonic-gate 				    i,
8517c478bd9Sstevel@tonic-gate 				    vtoc->efi_parts[i].p_start);
8527c478bd9Sstevel@tonic-gate 				(void) fprintf(stderr,
8537c478bd9Sstevel@tonic-gate 				    "It must be between %llu and %llu.\n",
8547c478bd9Sstevel@tonic-gate 				    vtoc->efi_first_u_lba,
8557c478bd9Sstevel@tonic-gate 				    vtoc->efi_last_u_lba);
8567c478bd9Sstevel@tonic-gate 			}
8577c478bd9Sstevel@tonic-gate 			return (VT_EINVAL);
8587c478bd9Sstevel@tonic-gate 		}
8597c478bd9Sstevel@tonic-gate 		if ((vtoc->efi_parts[i].p_start +
8607c478bd9Sstevel@tonic-gate 		    vtoc->efi_parts[i].p_size <
8617c478bd9Sstevel@tonic-gate 		    vtoc->efi_first_u_lba) ||
8627c478bd9Sstevel@tonic-gate 		    (vtoc->efi_parts[i].p_start +
8637c478bd9Sstevel@tonic-gate 		    vtoc->efi_parts[i].p_size >
8647c478bd9Sstevel@tonic-gate 		    vtoc->efi_last_u_lba + 1)) {
8657c478bd9Sstevel@tonic-gate 			if (efi_debug) {
8667c478bd9Sstevel@tonic-gate 				(void) fprintf(stderr,
8677c478bd9Sstevel@tonic-gate 				    "Partition %d ends at %llu.  ",
8687c478bd9Sstevel@tonic-gate 				    i,
8697c478bd9Sstevel@tonic-gate 				    vtoc->efi_parts[i].p_start +
8707c478bd9Sstevel@tonic-gate 				    vtoc->efi_parts[i].p_size);
8717c478bd9Sstevel@tonic-gate 				(void) fprintf(stderr,
8727c478bd9Sstevel@tonic-gate 				    "It must be between %llu and %llu.\n",
8737c478bd9Sstevel@tonic-gate 				    vtoc->efi_first_u_lba,
8747c478bd9Sstevel@tonic-gate 				    vtoc->efi_last_u_lba);
8757c478bd9Sstevel@tonic-gate 			}
8767c478bd9Sstevel@tonic-gate 			return (VT_EINVAL);
8777c478bd9Sstevel@tonic-gate 		}
8787c478bd9Sstevel@tonic-gate 
8797c478bd9Sstevel@tonic-gate 		for (j = 0; j < vtoc->efi_nparts; j++) {
8807c478bd9Sstevel@tonic-gate 			isize = vtoc->efi_parts[i].p_size;
8817c478bd9Sstevel@tonic-gate 			jsize = vtoc->efi_parts[j].p_size;
8827c478bd9Sstevel@tonic-gate 			istart = vtoc->efi_parts[i].p_start;
8837c478bd9Sstevel@tonic-gate 			jstart = vtoc->efi_parts[j].p_start;
8847c478bd9Sstevel@tonic-gate 			if ((i != j) && (isize != 0) && (jsize != 0)) {
8857c478bd9Sstevel@tonic-gate 				endsect = jstart + jsize -1;
8867c478bd9Sstevel@tonic-gate 				if ((jstart <= istart) &&
8877c478bd9Sstevel@tonic-gate 				    (istart <= endsect)) {
8887c478bd9Sstevel@tonic-gate 					if (efi_debug) {
8897c478bd9Sstevel@tonic-gate 						(void) fprintf(stderr,
8907c478bd9Sstevel@tonic-gate "Partition %d overlaps partition %d.",
8917c478bd9Sstevel@tonic-gate 						    i, j);
892af007057Syl 					}
893af007057Syl 					return (VT_EINVAL);
8947c478bd9Sstevel@tonic-gate 				}
8957c478bd9Sstevel@tonic-gate 			}
8967c478bd9Sstevel@tonic-gate 		}
8977c478bd9Sstevel@tonic-gate 	}
8987c478bd9Sstevel@tonic-gate 	/* just a warning for now */
8997c478bd9Sstevel@tonic-gate 	if ((resv_part == -1) && efi_debug) {
9007c478bd9Sstevel@tonic-gate 		(void) fprintf(stderr,
901af007057Syl 		    "no reserved partition found\n");
9027c478bd9Sstevel@tonic-gate 	}
9037c478bd9Sstevel@tonic-gate 	return (0);
9047c478bd9Sstevel@tonic-gate }
9057c478bd9Sstevel@tonic-gate 
906af007057Syl /*
907af007057Syl  * add all the unallocated space to the current label
908af007057Syl  */
909af007057Syl int
efi_use_whole_disk(int fd)910af007057Syl efi_use_whole_disk(int fd)
911af007057Syl {
912af007057Syl 	struct dk_gpt		*efi_label;
913af007057Syl 	int			rval;
914af007057Syl 	int			i;
915af007057Syl 	uint_t			phy_last_slice = 0;
916af007057Syl 	diskaddr_t		pl_start = 0;
917af007057Syl 	diskaddr_t		pl_size;
918af007057Syl 
919af007057Syl 	rval = efi_alloc_and_read(fd, &efi_label);
920af007057Syl 	if (rval < 0) {
921af007057Syl 		return (rval);
922af007057Syl 	}
923af007057Syl 
924af007057Syl 	/* find the last physically non-zero partition */
925af007057Syl 	for (i = 0; i < efi_label->efi_nparts - 2; i ++) {
926af007057Syl 		if (pl_start < efi_label->efi_parts[i].p_start) {
927af007057Syl 			pl_start = efi_label->efi_parts[i].p_start;
928af007057Syl 			phy_last_slice = i;
929af007057Syl 		}
930af007057Syl 	}
931af007057Syl 	pl_size = efi_label->efi_parts[phy_last_slice].p_size;
932af007057Syl 
933af007057Syl 	/*
934af007057Syl 	 * If alter_lba is 1, we are using the backup label.
935af007057Syl 	 * Since we can locate the backup label by disk capacity,
936af007057Syl 	 * there must be no unallocated space.
937af007057Syl 	 */
938af007057Syl 	if ((efi_label->efi_altern_lba == 1) || (efi_label->efi_altern_lba
939af007057Syl 	    >= efi_label->efi_last_lba)) {
940af007057Syl 		if (efi_debug) {
941af007057Syl 			(void) fprintf(stderr,
942af007057Syl 			    "efi_use_whole_disk: requested space not found\n");
943af007057Syl 		}
944af007057Syl 		efi_free(efi_label);
945af007057Syl 		return (VT_ENOSPC);
946af007057Syl 	}
947af007057Syl 
948af007057Syl 	/*
949af007057Syl 	 * If there is space between the last physically non-zero partition
950af007057Syl 	 * and the reserved partition, just add the unallocated space to this
951af007057Syl 	 * area. Otherwise, the unallocated space is added to the last
952af007057Syl 	 * physically non-zero partition.
953af007057Syl 	 */
954af007057Syl 	if (pl_start + pl_size - 1 == efi_label->efi_last_u_lba -
955*62ce8e2eSToomas Soome 	    efi_reserved_sectors(efi_label)) {
956af007057Syl 		efi_label->efi_parts[phy_last_slice].p_size +=
957af007057Syl 		    efi_label->efi_last_lba - efi_label->efi_altern_lba;
958af007057Syl 	}
959af007057Syl 
960af007057Syl 	/*
961af007057Syl 	 * Move the reserved partition. There is currently no data in
962af007057Syl 	 * here except fabricated devids (which get generated via
963af007057Syl 	 * efi_write()). So there is no need to copy data.
964af007057Syl 	 */
965af007057Syl 	efi_label->efi_parts[efi_label->efi_nparts - 1].p_start +=
966af007057Syl 	    efi_label->efi_last_lba - efi_label->efi_altern_lba;
967af007057Syl 	efi_label->efi_last_u_lba += efi_label->efi_last_lba
968af007057Syl 	    - efi_label->efi_altern_lba