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      1 /*	$NetBSD: md.h,v 1.11 2024/04/09 15:17:25 nia Exp $	*/
      2 
      3 /*
      4  * Copyright 1997 Piermont Information Systems Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Philip A. Nelson for Piermont Information Systems Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. The name of Piermont Information Systems Inc. may not be used to endorse
     18  *    or promote products derived from this software without specific prior
     19  *    written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
     22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
     25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     31  * THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 /* md.h -- Machine specific definitions for the i386 */
     36 
     37 
     38 #include <machine/cpu.h>
     39 #include <sys/types.h>
     40 #include <sys/stat.h>
     41 #include <sys/bootblock.h>
     42 #include <fcntl.h>
     43 #include <unistd.h>
     44 
     45 /* i386 uses the mbr code. */
     46 #include "mbr.h"
     47 
     48 /* constants and defines */
     49 #define DEFROOTSIZE	128	/* Default root size */
     50 #define DEFUSRSIZE	0	/* Default /usr size, if /home */
     51 #define XNEEDMB		300	/* Extra megs for full X installation */
     52 #define DEBNEEDMB	1400	/* Extra megs for debug sets */
     53 
     54 #define	DEFSWAPSIZE	(-1)
     55 
     56 /* use UFS2 by default for ffs */
     57 #define	DEFAULT_UFS2
     58 
     59 /* have support for booting from UFS2 */
     60 #define	HAVE_UFS2_BOOT
     61 
     62 /* have support for booting from GPT disks */
     63 #define	HAVE_GPT_BOOT
     64 
     65 /* allow using tmpfs for /tmp instead of mfs */
     66 #define HAVE_TMPFS
     67 
     68 /* have file system specific primary boot loader */
     69 #define	HAVE_BOOTXX_xFS
     70 #define	BOOTXXDIR	"/usr/mdec"
     71 #define	BOOTXX_FFSV1	"bootxx_ffsv1"
     72 #define	BOOTXX_FFSV2	"bootxx_ffsv2"
     73 #define	BOOTXX_LFSV2	"bootxx_lfsv2"
     74 
     75 
     76 /*
     77  *  Default filesets to fetch and install during installation
     78  *  or upgrade. The standard sets are:
     79  *      base base32 etc comp games gpufw man manhtml misc rescue tests text
     80  *      xbase xcomp xetc xfont xserver
     81  *
     82  * x86_64 has the  MD set kern first, because generic kernels are  too
     83  * big to fit on install floppies.
     84  *
     85  * Third entry is the last extension name in the split sets for loading
     86  * from floppy.
     87  */
     88 #define SET_KERNEL_1_NAME	"kern-GENERIC"
     89 #define	SET_KERNEL_2_NAME	"kern-GENERIC_KASLR"
     90 
     91 #define SET_KERNEL_GENERIC	SET_KERNEL_1
     92 
     93 /*
     94  * Machine-specific command to write a new label to a disk.
     95  * For example, i386  uses "/sbin/disklabel -w -r", just like i386
     96  * miniroot scripts, though this may leave a bogus incore label.
     97  * Sun ports should probably use  DISKLABEL_CMD "/sbin/disklabel -w"
     98  * to get incore  to ondisk inode translation for the Sun proms.
     99  * If not defined, we assume the port does not support disklabels and
    100  * hand-edited disklabel will NOT be written by MI code.
    101  *
    102  * On amd64, do what the 1.2 install scripts did.
    103  */
    104 #define DISKLABEL_CMD "disklabel -w -r"
    105 
    106 #define _PATH_MBR	DEFAULT_BOOTDIR "/" DEFAULT_BOOTCODE
    107 #define _PATH_BOOTSEL	DEFAULT_BOOTDIR "/" DEFAULT_BOOTSELCODE
    108 
    109 extern struct mbr_bootsel *mbs;
    110 
    111 
    112 /*
    113  *  prototypes for MD code.
    114  */
    115 
    116 /*
    117  * When we do an UEFI install, we have completely different default
    118  * partitions and need to adjust the description at runtime.
    119  */
    120 void x86_md_part_defaults(struct pm_devs*, struct part_usage_info**,
    121             size_t *num_usage_infos);
    122 
    123 #define MD_PART_DEFAULTS(A,B,C)	x86_md_part_defaults(A,&(B),&(C))
    124 
    125 /* no need to install bootblock if installing for UEFI */
    126 bool x86_md_need_bootblock(struct install_partition_desc *install);
    127 #define	MD_NEED_BOOTBLOCK(A)	x86_md_need_bootblock(A)
    128 
    129 /* post-process boot.cfg for KASLR if that kernel has been selected */
    130 void amd64_md_boot_cfg_finalize(const char*);
    131 #define	MD_BOOT_CFG_FINALIZE(P)	amd64_md_boot_cfg_finalize(P)
    132 
    133 #define	HAVE_EFI_BOOT		1	/* we support EFI boot partitions */
    134 
    135