blob: 773cdcaaffd40297094d46a6aedf093dc474ac07 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/** @file
* IPRT - Parameter Definitions.
*/
/*
* Copyright (C) 2006-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
#ifndef IPRT_INCLUDED_param_h
#define IPRT_INCLUDED_param_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
/** @todo Much of the PAGE_* stuff here is obsolete and highly risky to have around.
* As for component configs (MM_*), either we gather all in here or we move those bits away! */
/** @defgroup grp_rt_param System Parameter Definitions
* @ingroup grp_rt_cdefs
* @{
*/
/* Undefine PAGE_SIZE and PAGE_SHIFT to avoid unnecessary noice when clashing
* with system headers. Include system headers before / after iprt depending
* on which you wish to take precedence. */
#undef PAGE_SIZE
#undef PAGE_SHIFT
/* Undefine PAGE_OFFSET_MASK to avoid the conflict with the-linux-kernel.h */
#undef PAGE_OFFSET_MASK
/**
* i386 Page size.
*/
#if defined(RT_ARCH_SPARC64)
# define PAGE_SIZE 8192
#else
# define PAGE_SIZE 4096
#endif
/**
* i386 Page shift.
* This is used to convert between size (in bytes) and page count.
*/
#if defined(RT_ARCH_SPARC64)
# define PAGE_SHIFT 13
#else
# define PAGE_SHIFT 12
#endif
/**
* i386 Page offset mask.
*
* Do NOT one-complement this for whatever purpose. You may get a 32-bit const when you want a 64-bit one.
* Use PAGE_BASE_MASK, PAGE_BASE_GC_MASK, PAGE_BASE_HC_MASK, PAGE_ADDRESS() or X86_PTE_PAE_PG_MASK.
*/
#if defined(RT_ARCH_SPARC64)
# define PAGE_OFFSET_MASK 0x1fff
#else
# define PAGE_OFFSET_MASK 0xfff
#endif
/**
* Page address mask for the guest context POINTERS.
* @remark Physical addresses are always masked using X86_PTE_PAE_PG_MASK!
*/
#define PAGE_BASE_GC_MASK (~(RTGCUINTPTR)PAGE_OFFSET_MASK)
/**
* Page address mask for the host context POINTERS.
* @remark Physical addresses are always masked using X86_PTE_PAE_PG_MASK!
*/
#define PAGE_BASE_HC_MASK (~(RTHCUINTPTR)PAGE_OFFSET_MASK)
/**
* Page address mask for the both context POINTERS.
*
* Be careful when using this since it may be a size too big!
* @remark Physical addresses are always masked using X86_PTE_PAE_PG_MASK!
*/
#define PAGE_BASE_MASK (~(RTUINTPTR)PAGE_OFFSET_MASK)
/**
* Get the page aligned address of a POINTER in the CURRENT context.
*
* @returns Page aligned address (it's an uintptr_t).
* @param pv The virtual address to align.
*
* @remarks Physical addresses are always masked using X86_PTE_PAE_PG_MASK!
* @remarks This only works with POINTERS in the current context.
* Do NOT use on guest address or physical address!
*/
#define PAGE_ADDRESS(pv) ((uintptr_t)(pv) & ~(uintptr_t)PAGE_OFFSET_MASK)
/**
* Get the page aligned address of a physical address
*
* @returns Page aligned address (it's an RTHCPHYS or RTGCPHYS).
* @param Phys The physical address to align.
*/
#define PHYS_PAGE_ADDRESS(Phys) ((Phys) & X86_PTE_PAE_PG_MASK)
/**
* Host max path (the reasonable value).
* @remarks defined both by iprt/param.h and iprt/path.h.
*/
#if !defined(IPRT_INCLUDED_path_h) || defined(DOXYGEN_RUNNING)
# define RTPATH_MAX (4096 + 4) /* (PATH_MAX + 1) on linux w/ some alignment */
#endif
/** @} */
/** @} */
#endif /* !IPRT_INCLUDED_param_h */
|
