sys/platform/pc64/vmm/vmm.h

   1 /*
   2  * Copyright (c) 2003-2013 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Mihai Carabas <mihai.carabas@gmail.com>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #ifndef _VMM_VMM_H_
  36 #define _VMM_VMM_H_
  37
  38 #define MAX_NAME_LEN 256
  39
  40 #include <sys/param.h>
  41 #include <sys/vmm.h>
  42
  43 #define ERROR_IF(func)                                  \
  44         do {                                            \
  45         if ((err = (func))) {                           \
  46                 kprintf("VMM: %s error at line: %d\n",  \
  47                    __func__, __LINE__);                 \
  48                 goto error;                             \
  49         }                                               \
  50         } while(0)                                      \
  51
  52 #define ERROR2_IF(func)                                 \
  53         do {                                            \
  54         if ((err = (func))) {                           \
  55                 kprintf("VMM: %s error at line: %d\n",  \
  56                    __func__, __LINE__);                 \
  57                 goto error2;                            \
  58         }                                               \
  59         } while(0)                                      \
  60
  61 #ifdef VMM_DEBUG
  62 #define dkprintf(fmt, args...)          kprintf(fmt, ##args)
  63 #else
  64 #define dkprintf(fmt, args...)
  65 #endif
  66
  67 #define INSTRUCTION_MAX_LENGTH          15
  68
  69 struct vmm_ctl {
  70         char name[MAX_NAME_LEN];
  71         int (*init)(void);
  72         int (*enable)(void);
  73         int (*disable)(void);
  74         int (*vminit)(struct vmm_guest_options *);
  75         int (*vmdestroy)(void);
  76         int (*vmrun)(void);
  77         int (*vm_set_tls_area)(void);
  78         void (*vm_lwp_return)(struct lwp *lp, struct trapframe *frame);
  79         void (*vm_set_guest_cr3)(register_t);
  80         int (*vm_get_gpa)(struct proc *, register_t *, register_t);
  81
  82
  83 };
  84
  85 struct vmm_proc {
  86         uint64_t        guest_cr3;
  87         uint64_t        vmm_cr3;
  88 };
  89
  90 struct vmm_ctl* get_ctl_intel(void);
  91 struct vmm_ctl* get_ctl_amd(void);
  92
  93 #ifdef _KERNEL
  94
  95 extern int vmm_enabled;
  96 extern int vmm_debug;
  97
  98 #endif
  99
 100 #endif