1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/modctl.h> 30 #include <sys/sunddi.h> 31 #include <sys/sunndi.h> 32 33 /* 34 * The hvm_bootstrap misc module is installed in the i86hvm platform 35 * directly so it will only be loaded in HVM emulated environment. 36 */ 37 38 39 /* 40 * hvmboot_rootconf() exists to force attach all xdf disk driver nodes 41 * before the pv cmdk disk driver comes along and tries to access any of 42 * these nodes (which usually happens when mounting the root disk device 43 * in an hvm environment). See the block comments at the top of pv_cmdk.c 44 * for more information about why this is necessary. 45 */ 46 int 47 hvmboot_rootconf() 48 { 49 dev_info_t *xpvd_dip; 50 major_t xdf_major; 51 52 xdf_major = ddi_name_to_major("xdf"); 53 if (xdf_major == (major_t)-1) 54 cmn_err(CE_PANIC, "unable to load xdf disk driver"); 55 56 if (resolve_pathname("/xpvd", &xpvd_dip, NULL, NULL) != 0) 57 cmn_err(CE_PANIC, "unable to configure /xpvd nexus"); 58 59 (void) ndi_devi_config_driver(xpvd_dip, 0, xdf_major); 60 61 ndi_rele_devi(xpvd_dip); 62 return (0); 63 } 64 65 static struct modlmisc modlmisc = { 66 &mod_miscops, "hvm_bootstrap misc module" 67 }; 68 69 static struct modlinkage modlinkage = { 70 MODREV_1, (void *)&modlmisc, NULL 71 }; 72 73 int 74 _info(struct modinfo *modinfop) 75 { 76 return (mod_info(&modlinkage, modinfop)); 77 } 78 79 int 80 _init() 81 { 82 return (mod_install(&modlinkage)); 83 } 84 85 int 86 _fini() 87 { 88 return (EBUSY); 89 } 90