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 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 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 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 95 cpu_rootconf(void) 96 { 97 98 panic("%s: unimplemented", __func__); 99 } 100 101 void 102 cpu_bootconf(void) 103 { 104 } 105 106 void 107 device_register(device_t dev, void *v) 108 { 109 110 /* nada */ 111 } 112 113 void 114 device_register_post_config(device_t dev, void *v) 115 { 116 117 /* nada */ 118 } 119