ucode.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2018 The FreeBSD Foundation
    5  *
    6  * This software was developed by Mark Johnston under sponsorship from
    7  * the FreeBSD Foundation.
    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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  * $FreeBSD: releng/12.0/sys/x86/include/ucode.h 338687 2018-09-14 17:04:36Z markj $
   31  */
   32 
   33 #ifndef _MACHINE_UCODE_H_
   34 #define _MACHINE_UCODE_H_
   35 
   36 struct ucode_intel_header {
   37         uint32_t        header_version;
   38         int32_t         update_revision;
   39         uint32_t        dat;
   40         uint32_t        processor_signature;
   41         uint32_t        checksum;
   42         uint32_t        loader_revision;
   43         uint32_t        processor_flags;
   44 #define UCODE_INTEL_DEFAULT_DATA_SIZE           2000
   45         uint32_t        data_size;
   46         uint32_t        total_size;
   47         uint32_t        reserved[3];
   48 };
   49 
   50 struct ucode_intel_extsig_table {
   51         uint32_t        signature_count;
   52         uint32_t        signature_table_checksum;
   53         uint32_t        reserved[3];
   54         struct ucode_intel_extsig {
   55                 uint32_t        processor_signature;
   56                 uint32_t        processor_flags;
   57                 uint32_t        checksum;
   58         } entries[0];
   59 };
   60 
   61 int     ucode_intel_load(void *data, bool unsafe,
   62             uint64_t *nrevp, uint64_t *orevp);
   63 size_t  ucode_load_bsp(uintptr_t free);
   64 void    ucode_load_ap(int cpu);
   65 void    ucode_reload(void);
   66 void *  ucode_update(void *data);
   67 
   68 #endif /* _MACHINE_UCODE_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/x86/include/ucode.h

FreeBSD/Linux Kernel Cross Reference
sys/x86/include/ucode.h