1 /* $NetBSD: cpu_ucode.h,v 1.5 2022/09/15 14:34:22 msaitoh Exp $ */ 2 /* 3 * Copyright (c) 2012 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Christoph Egger. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef _X86_CPU_UCODE_H_ 32 #define _X86_CPU_UCODE_H_ 33 34 #define CPU_UCODE_LOADER_AMD 0 35 struct cpu_ucode_version_amd { 36 uint64_t version; 37 }; 38 39 #define CPU_UCODE_LOADER_INTEL1 1 40 struct cpu_ucode_version_intel1 { 41 uint32_t ucodeversion; 42 int platformid; 43 }; 44 45 #ifdef _KERNEL 46 #include <sys/cpu.h> 47 #include <sys/cpuio.h> 48 #include <dev/firmload.h> 49 50 int cpu_ucode_amd_get_version(struct cpu_ucode_version *, void *, size_t); 51 int cpu_ucode_amd_firmware_open(firmware_handle_t *, const char *); 52 int cpu_ucode_amd_apply(struct cpu_ucode_softc *, int); 53 54 int cpu_ucode_intel_get_version(struct cpu_ucode_version *, void *, size_t); 55 int cpu_ucode_intel_firmware_open(firmware_handle_t *, const char *); 56 int cpu_ucode_intel_apply(struct cpu_ucode_softc *, int); 57 #endif /* _KERNEL */ 58 59 struct intel1_ucode_header { 60 uint32_t uh_header_ver; 61 uint32_t uh_rev; 62 uint32_t uh_date; 63 uint32_t uh_signature; 64 uint32_t uh_checksum; 65 uint32_t uh_loader_rev; 66 uint32_t uh_proc_flags; 67 uint32_t uh_data_size; 68 uint32_t uh_total_size; 69 uint32_t uh_reserved[3]; 70 }; 71 72 struct intel1_ucode_ext_table { 73 uint32_t uet_count; 74 uint32_t uet_checksum; 75 uint32_t uet_reserved[3]; 76 }; 77 78 struct intel1_ucode_proc_signature { 79 uint32_t ups_signature; 80 uint32_t ups_proc_flags; 81 uint32_t ups_checksum; 82 }; 83 84 #endif 85