1 /* 2 * Copyright (c) 2017 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * ucode.h 30 * 31 * Interface definitions for the microcode updater interface sysctl 32 */ 33 34 /* Intel defined microcode format */ 35 struct intel_ucupdate { 36 /* Header information */ 37 uint32_t header_version; 38 uint32_t update_revision; 39 uint32_t date; 40 uint32_t processor_signature; 41 uint32_t checksum; 42 uint32_t loader_revision; 43 uint32_t processor_flags; 44 uint32_t data_size; 45 uint32_t total_size; 46 47 /* Reserved for future expansion */ 48 uint32_t reserved0; 49 uint32_t reserved1; 50 uint32_t reserved2; 51 52 /* First word of the update data */ 53 uint32_t data; 54 }; 55 56 extern int ucode_interface(uint64_t addr); 57 extern void ucode_update_wake_and_apply_cpu_was(void); 58