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  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 
  26 /*
  27  * Fake rtls module. Prevents the real rtls driver from loading in
  28  * a xen HVM domain so that xnf may operate instead.
  29  */
  30 
  31 #include <sys/sunddi.h>
  32 #include <sys/errno.h>
  33 #include <sys/modctl.h>
  34 
  35 struct dev_ops pv_rtls_ops = {
  36         DEVO_REV,
  37         0,
  38         NULL,
  39         nulldev,
  40         nulldev,
  41         NULL,
  42         NULL,
  43         nodev,
  44         NULL,
  45         NULL,
  46         NULL,
  47         ddi_quiesce_not_needed,         /* quiesce */
  48 };
  49 
  50 /*
  51  * Module linkage information for the kernel.
  52  */
  53 static struct modldrv modldrv = {
  54         &mod_driverops,
  55         "xVM rtls stub",
  56         &pv_rtls_ops
  57 };
  58 
  59 static struct modlinkage modlinkage = {
  60         MODREV_1, (void *)&modldrv, NULL
  61 };
  62 
  63 int
  64 _init(void)
  65 {
  66         return (mod_install(&modlinkage));
  67 }
  68 
  69 int
  70 _info(struct modinfo *modinfop)
  71 {
  72         return (mod_info(&modlinkage, modinfop));
  73 }
  74 
  75 int
  76 _fini(void)
  77 {
  78         return (EBUSY);
  79 }