| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * Hypervisor Software File: prom_init.c |
| 5 | * |
| 6 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 7 | * |
| 8 | * - Do no alter or remove copyright notices |
| 9 | * |
| 10 | * - Redistribution and use of this software in source and binary forms, with |
| 11 | * or without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistribution of source code must retain the above copyright notice, |
| 15 | * this list of conditions and the following disclaimer. |
| 16 | * |
| 17 | * - Redistribution in binary form must reproduce the above copyright notice, |
| 18 | * this list of conditions and the following disclaimer in the |
| 19 | * documentation and/or other materials provided with the distribution. |
| 20 | * |
| 21 | * Neither the name of Sun Microsystems, Inc. or the names of contributors |
| 22 | * may be used to endorse or promote products derived from this software |
| 23 | * without specific prior written permission. |
| 24 | * |
| 25 | * This software is provided "AS IS," without a warranty of any kind. |
| 26 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, |
| 27 | * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A |
| 28 | * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN |
| 29 | * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR |
| 30 | * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR |
| 31 | * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN |
| 32 | * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR |
| 33 | * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE |
| 34 | * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, |
| 35 | * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF |
| 36 | * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
| 37 | * |
| 38 | * You acknowledge that this software is not designed, licensed or |
| 39 | * intended for use in the design, construction, operation or maintenance of |
| 40 | * any nuclear facility. |
| 41 | * |
| 42 | * ========== Copyright Header End ============================================ |
| 43 | */ |
| 44 | /* |
| 45 | * Copyright (c) 2000-2003 Sun Microsystems, Inc. |
| 46 | * All rights reserved. |
| 47 | * Use is subject to license terms. |
| 48 | */ |
| 49 | |
| 50 | #pragma ident "@(#)prom_init.c 1.1 00/08/07 SMI" |
| 51 | |
| 52 | #include <sys/promif.h> |
| 53 | #include <sys/promimpl.h> |
| 54 | |
| 55 | static void prom_fatal_error(const char *errormsg); |
| 56 | |
| 57 | /* |
| 58 | * This is the string we use to print out "panic" level messages. |
| 59 | */ |
| 60 | #define PROMIF_CLNTNAMELEN 16 |
| 61 | char promif_clntname[PROMIF_CLNTNAMELEN]; |
| 62 | |
| 63 | /* |
| 64 | * Every standalone that wants to use this library must call |
| 65 | * prom_init() before any of the other routines can be called. |
| 66 | */ |
| 67 | void |
| 68 | prom_init(char *pgmname, void *p1275cif) |
| 69 | { |
| 70 | |
| 71 | /* |
| 72 | * Validate and register address of the client interface handler |
| 73 | */ |
| 74 | if (p1275_cif_init(p1275cif) == NULL) |
| 75 | prom_fatal_error("promif: No interface!"); |
| 76 | |
| 77 | /* |
| 78 | * Initialize the "clientname" string with the string we've |
| 79 | * been handed by the standalone |
| 80 | */ |
| 81 | (void) prom_strncpy(promif_clntname, "standalone-program", |
| 82 | PROMIF_CLNTNAMELEN - 1); |
| 83 | promif_clntname[PROMIF_CLNTNAMELEN - 1] = '\0'; |
| 84 | } |
| 85 | |
| 86 | /* |
| 87 | * Cant get to the prom interface. Try to cause a trap by |
| 88 | * dividing by zero, leaving the message in %i0 |
| 89 | */ |
| 90 | static void |
| 91 | prom_fatal_error(const char *errormsg) |
| 92 | { |
| 93 | volatile int zero = 0; |
| 94 | volatile int i = 1; |
| 95 | |
| 96 | i = i / zero; |
| 97 | /*NOTREACHED*/ |
| 98 | } |