darling-xnu/osfmk/i386/ucode.h
2023-05-16 21:41:14 -07:00

58 lines
1.9 KiB
C

/*
* Copyright (c) 2017 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* ucode.h
*
* Interface definitions for the microcode updater interface sysctl
*/
/* Intel defined microcode format */
struct intel_ucupdate {
/* Header information */
uint32_t header_version;
uint32_t update_revision;
uint32_t date;
uint32_t processor_signature;
uint32_t checksum;
uint32_t loader_revision;
uint32_t processor_flags;
uint32_t data_size;
uint32_t total_size;
/* Reserved for future expansion */
uint32_t reserved0;
uint32_t reserved1;
uint32_t reserved2;
/* First word of the update data */
uint32_t data;
};
extern int ucode_interface(uint64_t addr);
extern void ucode_update_wake_and_apply_cpu_was(void);