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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 | } |