The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/cpuctl.h

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    1 /*-
    2  * Copyright (c) 2006-2008 Stanislav Sedov <stas@FreeBSD.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 
   29 #ifndef _CPUCTL_H_
   30 #define _CPUCTL_H_
   31 
   32 typedef struct {
   33         int             msr;    /* MSR to read */
   34         uint64_t        data;
   35 } cpuctl_msr_args_t;
   36 
   37 typedef struct {
   38         int             level;  /* CPUID level */
   39         uint32_t        data[4];
   40 } cpuctl_cpuid_args_t;
   41 
   42 typedef struct {
   43         void    *data;
   44         size_t  size;
   45 } cpuctl_update_args_t;
   46 
   47 #define CPUCTL_RDMSR    _IOWR('c', 1, cpuctl_msr_args_t)
   48 #define CPUCTL_WRMSR    _IOWR('c', 2, cpuctl_msr_args_t)
   49 #define CPUCTL_CPUID    _IOWR('c', 3, cpuctl_cpuid_args_t)
   50 #define CPUCTL_UPDATE   _IOWR('c', 4, cpuctl_update_args_t)
   51 #define CPUCTL_MSRSBIT  _IOWR('c', 5, cpuctl_msr_args_t)
   52 #define CPUCTL_MSRCBIT  _IOWR('c', 6, cpuctl_msr_args_t)
   53 
   54 #endif /* _CPUCTL_H_ */

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