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 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 81 kern_cpu_60_init(void) 82 { 83 84 compat_cpuctl_ioctl = compat6_cpuctl_ioctl; 85 } 86 87 void 88 kern_cpu_60_fini(void) 89 { 90 91 compat_cpuctl_ioctl = (void *)enosys; 92 } 93