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rump_dev.c revision 1.27.24.1 
      1 /*	$NetBSD: rump_dev.c,v 1.27.24.1 2020/02/29 20:21:09 ad Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2009 Antti Kantee.  All Rights Reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     16  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     18  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: rump_dev.c,v 1.27.24.1 2020/02/29 20:21:09 ad Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/device.h>
     33 
     34 #include <rump-sys/kern.h>
     35 #include <rump-sys/dev.h>
     36 
     37 int nocomponent(void);
     38 int nocomponent() {return 0;}
     39 __weak_alias(buf_syncwait,nocomponent);
     40 
     41 const char *rootspec = "rump0a"; /* usually comes from config */
     42 
     43 RUMP_COMPONENT(RUMP__FACTION_DEV)
     44 {
     45 	extern int cold;
     46 
     47 	pmf_init();
     48 
     49 	KERNEL_LOCK(1, curlwp);
     50 
     51 	rump_mainbus_init();
     52 
     53 	rump_component_init(RUMP_COMPONENT_DEV);
     54 
     55 	rump_pdev_finalize();
     56 
     57 	cold = 0;
     58 
     59 	/*
     60 	 * XXX: does the "if" make any sense?  What if someone wants
     61 	 * to dynamically load a driver later on?
     62 	 */
     63 	if (rump_component_count(RUMP_COMPONENT_DEV) > 0
     64 	    || rump_component_count(RUMP_COMPONENT_DEV_AFTERMAINBUS) > 0) {
     65 		rump_mainbus_attach();
     66 		if (config_rootfound("mainbus", NULL) == NULL)
     67 			panic("no mainbus");
     68 
     69 		rump_component_init(RUMP_COMPONENT_DEV_AFTERMAINBUS);
     70 	}
     71 	config_finalize();
     72 
     73 	KERNEL_UNLOCK_LAST(curlwp);
     74 
     75 	/* if there is a vfs, perform activity deferred until mountroot */
     76 	if (rump_component_count(RUMP__FACTION_VFS)) {
     77 		config_create_mountrootthreads();
     78 		yield();
     79 	}
     80 }
     81 
     82 void
     83 cpu_rootconf(void)
     84 {
     85 
     86 	panic("%s: unimplemented", __func__);
     87 }
     88 
     89 void
     90 cpu_bootconf(void)
     91 {
     92 }
     93 
     94 void
     95 device_register(device_t dev, void *v)
     96 {
     97 
     98 	/* nada */
     99 }
    100 
    101 void
    102 device_register_post_config(device_t dev, void *v)
    103 {
    104 
    105 	/* nada */
    106 }
    107