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 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <sys/modctl.h> 28 #include <sys/sunddi.h> 29 #include <sys/sunndi.h> 30 31 /* 32 * The hvm_bootstrap misc module is installed in the i86hvm platform 33 * directly so it will only be loaded in HVM emulated environment. 34 */ 35 36 37 /* 38 * hvmboot_rootconf() exists to force attach all xdf disk driver nodes 39 * before the pv cmdk disk driver comes along and tries to access any of 40 * these nodes (which usually happens when mounting the root disk device 41 * in an hvm environment). See the block comments at the top of pv_cmdk.c 42 * for more information about why this is necessary. 43 * 44 * hvmboot_rootconf() also force attaches xnf network driver nodes so 45 * that boot interface can be plumbed when booted via the network. 46 */ 47 int 48 hvmboot_rootconf() 49 { 50 dev_info_t *xpvd_dip; 51 major_t dev_major; 52 53 dev_major = ddi_name_to_major("xdf"); 54 if (dev_major == (major_t)-1) 55 cmn_err(CE_PANIC, "unable to load xdf disk driver"); 56 57 if (resolve_pathname("/xpvd", &xpvd_dip, NULL, NULL) != 0) 58 cmn_err(CE_PANIC, "unable to configure /xpvd nexus"); 59 60 (void) ndi_devi_config_driver(xpvd_dip, 0, dev_major); 61 62 dev_major = ddi_name_to_major("xnf"); 63 if (dev_major == (major_t)-1) 64 cmn_err(CE_PANIC, "unable to load xnf network driver"); 65 (void) ndi_devi_config_driver(xpvd_dip, 0, dev_major); 66 67 ndi_rele_devi(xpvd_dip); 68 return (0); 69 } 70 71 static struct modlmisc modlmisc = { 72 &mod_miscops, "hvm_bootstrap misc module" 73 }; 74 75 static struct modlinkage modlinkage = { 76 MODREV_1, (void *)&modlmisc, NULL 77 }; 78 79 int 80 _info(struct modinfo *modinfop) 81 { 82 return (mod_info(&modlinkage, modinfop)); 83 } 84 85 int 86 _init() 87 { 88 return (mod_install(&modlinkage)); 89 } 90 91 int 92 _fini() 93 { 94 return (EBUSY); 95 } 96