usr/src/uts/intel/ia32/sys/pte.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #ifndef _IA32_SYS_PTE_H
  27 #define _IA32_SYS_PTE_H
  28
  29 #pragma ident   "%Z%%M% %I%     %E% SMI"
  30
  31 #ifndef _ASM
  32 #include <sys/types.h>
  33 #endif /* _ASM */
  34
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 #ifndef _ASM
  40
  41 #ifdef  PTE36                   /* PTE36 ---------------------------- */
  42
  43 typedef uint64_t        pteval_t;
  44 typedef pteval_t        *pteptr_t;
  45
  46 #define PRPTEx          "llx"
  47
  48 typedef struct pte32 {
  49         uint32_t Present:1;
  50         uint32_t AccessPermissions:2;
  51         uint32_t WriteThru:1;
  52         uint32_t NonCacheable:1;
  53         uint32_t Referenced:1;
  54         uint32_t Modified:1;
  55         uint32_t MustBeZero:1;
  56         uint32_t GlobalEnable:1;
  57         uint32_t OSReserved:3;
  58         uint32_t PhysicalPageNumber:20;
  59 } pte32_t;
  60
  61
  62 typedef struct pte {
  63         uint32_t Present:1;
  64         uint32_t AccessPermissions:2;
  65         uint32_t WriteThru:1;
  66         uint32_t NonCacheable:1;
  67         uint32_t Referenced:1;
  68         uint32_t Modified:1;
  69         uint32_t MustBeZero:1;
  70         uint32_t GlobalEnable:1;
  71         uint32_t OSReserved:3;
  72         uint32_t PhysicalPageNumberL:20;
  73         uint32_t PhysicalPageNumberH;
  74                                         /*
  75                                          * An easy way to ensure that
  76                                          * reserved bits are zero.
  77                                          */
  78 } pte_t;
  79
  80 struct  pte64 {
  81         uint32_t        pte64_0_31;
  82         uint32_t        pte64_32_64;
  83 };
  84
  85 #define NPTESHIFT       9
  86 #define NPTEPERPT       512     /* entries in page table */
  87 #define PTSIZE          (NPTEPERPT * MMU_PAGESIZE)      /* bytes mapped */
  88
  89
  90 #else           /* PTE36 */
  91                                 /* PTE32 ---------------------------- */
  92
  93
  94 typedef uint32_t        pteval_t;
  95 typedef pteval_t        *pteptr_t;
  96
  97 #define PRPTEx          "x"
  98
  99 typedef struct pte {
 100         uint_t Present:1;
 101         uint_t AccessPermissions:2;
 102         uint_t WriteThru:1;
 103         uint_t NonCacheable:1;
 104         uint_t Referenced:1;
 105         uint_t Modified:1;
 106         uint_t MustBeZero:1;
 107         uint_t GlobalEnable:1;
 108         uint_t OSReserved:3;
 109         uint_t PhysicalPageNumber:20;
 110 } pte_t;
 111
 112 #define pte32_t         pte_t
 113
 114 #define NPTESHIFT       10
 115 #define NPTEPERPT       1024    /* entries in page table */
 116 #define PTSIZE          (NPTEPERPT * MMU_PAGESIZE)      /* bytes mapped */
 117
 118 #endif  /* PTE36 */
 119
 120 #define PTE_VALID       0x01
 121 #define PTE_LARGEPAGE   0x80
 122 #define PTE_SRWX        0x02
 123
 124 #endif /* !_ASM */
 125
 126
 127 #ifdef  __cplusplus
 128 }
 129 #endif
 130
 131 #endif /* !_IA32_SYS_PTE_H */