ibcs2_sysi86.c revision 16230 
1/*-
2 * Copyright (c) 1994 S�ren Schmidt
3 * Copyright (c) 1995 Steven Wallace
4 * 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 *    in this position and unchanged.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 *    derived from this software withough specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 *	ibcs2_sysi86.c,v 1.1 1994/10/14 08:53:11 sos Exp
30 */
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/proc.h>
36#include <sys/sysctl.h>
37
38#include <i386/ibcs2/ibcs2_types.h>
39#include <i386/ibcs2/ibcs2_signal.h>
40#include <i386/ibcs2/ibcs2_util.h>
41#include <i386/ibcs2/ibcs2_proto.h>
42
43#define IBCS2_FP_NO     0       /* no fp support */
44#define IBCS2_FP_SW     1       /* software emulator */
45#define IBCS2_FP_287    2       /* 80287 FPU */
46#define IBCS2_FP_387    3       /* 80387 FPU */
47
48#define SI86_FPHW	40
49#define STIME		54
50#define SETNAME		56
51#define SI86_MEM	65
52
53extern int hw_float;
54
55int
56ibcs2_sysi86(struct proc *p, struct ibcs2_sysi86_args *args, int *retval)
57{
58	switch (SCARG(args, cmd)) {
59	case SI86_FPHW: {	/* Floating Point information */
60		int val, error;
61
62		if (hw_float) val = IBCS2_FP_387;	/* FPU hardware */
63		else val = IBCS2_FP_SW;			/* FPU emulator */
64
65		if (error = copyout(&val, SCARG(args, arg), sizeof(val)))
66			return error;
67		return 0;
68		}
69
70        case STIME:       /* set the system time given pointer to long */
71	  /* gettimeofday; time.tv_sec = *args->arg; settimeofday */
72	        return EINVAL;
73
74	case SETNAME:  {  /* set hostname given string w/ len <= 7 chars */
75	        int name[2];
76	        int error;
77
78		if ((error = suser(p->p_ucred, &p->p_acflag)))
79		  return (error);
80		name[0] = CTL_KERN;
81		name[1] = KERN_HOSTNAME;
82		return (userland_sysctl(p, name, 2, 0, 0, 0,
83			SCARG(args, arg), 7, 0));
84	}
85
86	case SI86_MEM:	/* size of physical memory */
87		*retval = ctob(physmem);
88		return 0;
89
90	default:
91#ifdef DIAGNOSTIC
92		printf("IBCS2: 'sysi86' function %d(0x%x) "
93			"not implemented yet\n", SCARG(args, cmd), args->cmd);
94#endif
95		return EINVAL;
96	}
97}
98