miniroot.c revision 1.2 
11.2Sad/*	$NetBSD: miniroot.c,v 1.2 2008/11/16 15:46:10 ad Exp $	*/
21.1Sad
31.1Sad/*-
41.1Sad * Copyright (c) 2008 The NetBSD Foundation, Inc.
51.1Sad * All rights reserved.
61.1Sad *
71.1Sad * Redistribution and use in source and binary forms, with or without
81.1Sad * modification, are permitted provided that the following conditions
91.1Sad * are met:
101.1Sad * 1. Redistributions of source code must retain the above copyright
111.1Sad *    notice, this list of conditions and the following disclaimer.
121.1Sad * 2. Redistributions in binary form must reproduce the above copyright
131.1Sad *    notice, this list of conditions and the following disclaimer in the
141.1Sad *    documentation and/or other materials provided with the distribution.
151.1Sad *
161.1Sad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
171.1Sad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
181.1Sad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
191.1Sad * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
201.1Sad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
211.1Sad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
221.1Sad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
231.1Sad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
241.1Sad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
251.1Sad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
261.1Sad * POSSIBILITY OF SUCH DAMAGE.
271.1Sad */
281.1Sad
291.1Sad#include <sys/cdefs.h>
301.2Sad__KERNEL_RCSID(0, "$NetBSD: miniroot.c,v 1.2 2008/11/16 15:46:10 ad Exp $");
311.1Sad
321.1Sad#include <sys/param.h>
331.1Sad#include <sys/kernel.h>
341.1Sad#include <sys/module.h>
351.1Sad
361.1Sad#include <dev/md.h>
371.1Sad
381.1SadMODULE(MODULE_CLASS_MISC, miniroot, NULL);
391.1Sad
401.1Sadstatic int
411.1Sadminiroot_modcmd(modcmd_t cmd, void *arg)
421.1Sad{
431.1Sad	void *addr;
441.1Sad	int error;
451.1Sad	size_t size;
461.1Sad
471.1Sad	switch (cmd) {
481.1Sad	case MODULE_CMD_INIT:
491.1Sad		error = module_find_section("miniroot", &addr, &size);
501.1Sad		if (error == 0 && size != 0)
511.1Sad			 md_root_setconf(addr, size);
521.1Sad		break;
531.1Sad
541.2Sad	case MODULE_CMD_FINI:
551.2Sad		return EOPNOTSUPP;
561.2Sad
571.1Sad	default:
581.1Sad		return ENOTTY;
591.1Sad	}
601.1Sad
611.1Sad	return 0;
621.1Sad}
63