1 /* $NetBSD: kern_cpu_60.c,v 1.4 2019/01/27 02:08:39 pgoyette Exp $ */
2
3 /*-
4 * Copyright (c) 2018 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: kern_cpu_60.c,v 1.4 2019/01/27 02:08:39 pgoyette Exp $");
34
35 #ifdef _KERNEL_OPT
36 #include "opt_cpu_ucode.h"
37 #include "opt_compat_netbsd.h"
38 #endif
39
40 #ifdef _KERNEL_OPT
41 #include "opt_cpu_ucode.h"
42 #include "opt_compat_netbsd.h"
43 #endif
44
45 #include <sys/param.h>
46 #include <sys/types.h>
47 #include <sys/systm.h>
48 #include <sys/errno.h>
49 #include <sys/kauth.h>
50 #include <sys/lwp.h>
51 #include <sys/cpu.h>
52
53 #include <compat/sys/cpuio.h>
54
55 static int
compat6_cpuctl_ioctl(struct lwp * l,u_long cmd,void * data)56 compat6_cpuctl_ioctl(struct lwp *l, u_long cmd, void *data)
57 {
58
59 switch (cmd) {
60 #if defined(CPU_UCODE) && defined(COMPAT_60)
61 case OIOC_CPU_UCODE_GET_VERSION:
62 return compat6_cpu_ucode_get_version(data);
63
64 case OIOC_CPU_UCODE_APPLY:
65 {
66 int error;
67
68 error = kauth_authorize_machdep(l->l_cred,
69 KAUTH_MACHDEP_CPU_UCODE_APPLY, NULL, NULL, NULL, NULL);
70 if (error)
71 return error;
72 return compat6_cpu_ucode_apply(data);
73 }
74 #endif
75 default:
76 return ENOTTY;
77 }
78 }
79
80 void
kern_cpu_60_init(void)81 kern_cpu_60_init(void)
82 {
83
84 compat_cpuctl_ioctl = compat6_cpuctl_ioctl;
85 }
86
87 void
kern_cpu_60_fini(void)88 kern_cpu_60_fini(void)
89 {
90
91 compat_cpuctl_ioctl = (void *)enosys;
92 }
93