1 /* $NetBSD: rump_dev.c,v 1.29 2023/04/23 07:03:30 riastradh 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 1.29 2023/04/23 07:03:30 riastradh 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 rumpdev_do_sys_sync_stub(struct lwp *);
38 int
rumpdev_do_sys_sync_stub(struct lwp * l)39 rumpdev_do_sys_sync_stub(struct lwp *l)
40 {
41 return 0;
42 }
43 __weak_alias(do_sys_sync,rumpdev_do_sys_sync_stub);
44
45 int rumpdev_vfs_syncwait_stub(void);
46 int
rumpdev_vfs_syncwait_stub(void)47 rumpdev_vfs_syncwait_stub(void)
48 {
49 return 0;
50 }
51 __weak_alias(vfs_syncwait,rumpdev_vfs_syncwait_stub);
52
53 const char *rootspec = "rump0a"; /* usually comes from config */
54
RUMP_COMPONENT(RUMP__FACTION_DEV)55 RUMP_COMPONENT(RUMP__FACTION_DEV)
56 {
57 extern int cold;
58
59 pmf_init();
60
61 KERNEL_LOCK(1, curlwp);
62
63 rump_mainbus_init();
64
65 rump_component_init(RUMP_COMPONENT_DEV);
66
67 rump_pdev_finalize();
68
69 cold = 0;
70
71 /*
72 * XXX: does the "if" make any sense? What if someone wants
73 * to dynamically load a driver later on?
74 */
75 if (rump_component_count(RUMP_COMPONENT_DEV) > 0
76 || rump_component_count(RUMP_COMPONENT_DEV_AFTERMAINBUS) > 0) {
77 rump_mainbus_attach();
78 if (config_rootfound("mainbus", NULL) == NULL)
79 panic("no mainbus");
80
81 rump_component_init(RUMP_COMPONENT_DEV_AFTERMAINBUS);
82 }
83 config_finalize();
84
85 KERNEL_UNLOCK_LAST(curlwp);
86
87 /* if there is a vfs, perform activity deferred until mountroot */
88 if (rump_component_count(RUMP__FACTION_VFS)) {
89 config_create_mountrootthreads();
90 yield();
91 }
92 }
93
94 void
cpu_rootconf(void)95 cpu_rootconf(void)
96 {
97
98 panic("%s: unimplemented", __func__);
99 }
100
101 void
cpu_bootconf(void)102 cpu_bootconf(void)
103 {
104 }
105
106 void
device_register(device_t dev,void * v)107 device_register(device_t dev, void *v)
108 {
109
110 /* nada */
111 }
112
113 void
device_register_post_config(device_t dev,void * v)114 device_register_post_config(device_t dev, void *v)
115 {
116
117 /* nada */
118 }
119