1 /* $NetBSD: kern_cpu_60.c,v 1.3 2018/03/18 04:10:39 christos 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 1.3 2018/03/18 04:10:39 christos Exp $"); 34 35 #ifdef _KERNEL_OPT 36 #include "opt_cpu_ucode.h" 37 #include "opt_compat_netbsd.h" 38 #endif 39 40 #include <sys/param.h> 41 #include <sys/types.h> 42 #include <sys/systm.h> 43 #include <sys/errno.h> 44 #include <sys/kauth.h> 45 #include <sys/cpu.h> 46 #include <sys/cpuio.h> 47 48 #include <compat/sys/cpuio.h> 49 50 static int 51 compat6_cpuctl_ioctl(struct lwp *l, u_long cmd, void *data) 52 { 53 #if defined(CPU_UCODE) && defined(COMPAT_60) 54 int error; 55 #endif 56 switch (cmd) { 57 #if defined(CPU_UCODE) && defined(COMPAT_60) 58 case OIOC_CPU_UCODE_GET_VERSION: 59 return compat6_cpu_ucode_get_version(data); 60 61 case OIOC_CPU_UCODE_APPLY: 62 error = kauth_authorize_machdep(l->l_cred, 63 KAUTH_MACHDEP_CPU_UCODE_APPLY, NULL, NULL, NULL, NULL); 64 if (error) 65 return error; 66 return compat6_cpu_ucode_apply(data); 67 #endif 68 default: 69 return ENOTTY; 70 } 71 } 72 73 void 74 kern_cpu_60_init(void) 75 { 76 compat_cpuctl_ioctl = compat6_cpuctl_ioctl; 77 } 78 79 void 80 kern_cpu_60_fini(void) 81 { 82 compat_cpuctl_ioctl = (void *)enosys; 83 } 84