1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1994-1996, 2002-2003 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <sys/param.h> 30*0Sstevel@tonic-gate #include <sys/vnode.h> 31*0Sstevel@tonic-gate #include <sys/fs/ufs_fsdir.h> 32*0Sstevel@tonic-gate #include <sys/fs/ufs_fs.h> 33*0Sstevel@tonic-gate #include <sys/fs/ufs_inode.h> 34*0Sstevel@tonic-gate #include <sys/sysmacros.h> 35*0Sstevel@tonic-gate #include <sys/promif.h> 36*0Sstevel@tonic-gate #include <sys/filep.h> 37*0Sstevel@tonic-gate #include <sys/salib.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate static char prom_dev_type = 0; 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate /* 42*0Sstevel@tonic-gate * unix root slice offset for PROMS that do 43*0Sstevel@tonic-gate * not know about fdisk partitions or Solaris 44*0Sstevel@tonic-gate * slices. 45*0Sstevel@tonic-gate * the default is 0 for machines with proms that 46*0Sstevel@tonic-gate * do know how to interpret solaris slices. 47*0Sstevel@tonic-gate */ 48*0Sstevel@tonic-gate unsigned long unix_startblk = 0; 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate /* 51*0Sstevel@tonic-gate * The various flavors of PROM make this grotesque. 52*0Sstevel@tonic-gate */ 53*0Sstevel@tonic-gate int 54*0Sstevel@tonic-gate diskread(fileid_t *filep) 55*0Sstevel@tonic-gate { 56*0Sstevel@tonic-gate int err; 57*0Sstevel@tonic-gate devid_t *devp; 58*0Sstevel@tonic-gate uint_t blocknum; 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate /* add in offset of root slice */ 61*0Sstevel@tonic-gate blocknum = filep->fi_blocknum + unix_startblk; 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate devp = filep->fi_devp; 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate err = prom_seek(devp->di_dcookie, 66*0Sstevel@tonic-gate (unsigned long long)blocknum * (unsigned long long)DEV_BSIZE); 67*0Sstevel@tonic-gate if (err == -1) { 68*0Sstevel@tonic-gate printf("Seek error at block %x\n", blocknum); 69*0Sstevel@tonic-gate return (-1); 70*0Sstevel@tonic-gate } 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate if ((err = prom_read(devp->di_dcookie, filep->fi_memp, filep->fi_count, 73*0Sstevel@tonic-gate blocknum, prom_dev_type)) != filep->fi_count) { 74*0Sstevel@tonic-gate printf("Short read. 0x%x chars read\n", err); 75*0Sstevel@tonic-gate return (-1); 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate return (0); 79*0Sstevel@tonic-gate } 80