1 /*-
2 * Copyright (c) 1994 Søren 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
53 extern int hw_float;
54
55 int
56 ibcs2_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 }
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