xref: /titanic_44/usr/src/uts/intel/ia32/promif/prom_enter.c (revision 4496171313bed39e96f21bc2f9faf2868e267ae3)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/promif.h>
30 #include <sys/promimpl.h>
31 #include <sys/archsystm.h>
32 #include <sys/reboot.h>
33 #include <sys/kdi.h>
34 
35 /*
36  * The Intel cpu does not have an underlying monitor.
37  * So, we emulate the best we can.....
38  */
39 
40 void
41 prom_enter_mon(void)
42 {
43 #if defined(I386BOOT)
44 	return;
45 #endif
46 
47 #if defined(_KMDB)
48 	prom_exit_to_mon();
49 #endif
50 
51 	if (boothowto & RB_DEBUG)
52 		kdi_dvec_enter();
53 	else {
54 		prom_printf("Press any key to continue.");
55 		(void) prom_getchar();
56 	}
57 }
58