VirtualBox

source: vbox/trunk/src/VBox/VMM/VMMR0/HWVMXR0.h@ 5240

Last change on this file since 5240 was 4071, checked in by vboxsync, 17 years ago

Biggest check-in ever. New source code headers for all (C) innotek files.

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File size: 3.9 KB
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1/* $Id: HWVMXR0.h 4071 2007-08-07 17:07:59Z vboxsync $ */
2/** @file
3 * HWACCM SVM - Internal header file.
4 */
5
6/*
7 * Copyright (C) 2006-2007 innotek GmbH
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License as published by the Free Software Foundation,
13 * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14 * distribution. VirtualBox OSE is distributed in the hope that it will
15 * be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18#ifndef ___HWVMXR0_h
19#define ___HWVMXR0_h
20
21#include <VBox/cdefs.h>
22#include <VBox/types.h>
23#include <VBox/em.h>
24#include <VBox/stam.h>
25#include <VBox/dis.h>
26#include <VBox/hwaccm.h>
27#include <VBox/pgm.h>
28#include <VBox/hwacc_vmx.h>
29
30__BEGIN_DECLS
31
32/** @defgroup grp_vmx Internal
33 * @ingroup grp_vmx
34 * @internal
35 * @{
36 */
37
38#ifdef IN_RING0
39
40/**
41 * Enable VMX
42 *
43 * @returns VBox status code.
44 * @param pVM The VM to operate on.
45 */
46HWACCMR0DECL(int) VMXR0Enable(PVM pVM);
47
48/**
49 * Disable VMX
50 *
51 * @returns VBox status code.
52 * @param pVM The VM to operate on.
53 */
54HWACCMR0DECL(int) VMXR0Disable(PVM pVM);
55
56/**
57 * Sets up and activates VMX
58 *
59 * @returns VBox status code.
60 * @param pVM The VM to operate on.
61 */
62HWACCMR0DECL(int) VMXR0Setup(PVM pVM);
63
64
65/**
66 * Save the host state
67 *
68 * @returns VBox status code.
69 * @param pVM The VM to operate on.
70 */
71HWACCMR0DECL(int) VMXR0SaveHostState(PVM pVM);
72
73/**
74 * Loads the guest state
75 *
76 * @returns VBox status code.
77 * @param pVM The VM to operate on.
78 * @param pCtx Guest context
79 */
80HWACCMR0DECL(int) VMXR0LoadGuestState(PVM pVM, CPUMCTX *pCtx);
81
82
83/**
84 * Runs guest code in a VMX VM.
85 *
86 * @note NEVER EVER turn on interrupts here. Due to our illegal entry into the kernel, it might mess things up. (XP kernel traps have been frequently observed)
87 *
88 * @returns VBox status code.
89 * @param pVM The VM to operate on.
90 * @param pCtx Guest context
91 */
92HWACCMR0DECL(int) VMXR0RunGuestCode(PVM pVM, CPUMCTX *pCtx);
93
94
95#define VMX_WRITE_SELREG(REG, reg) \
96 rc = VMXWriteVMCS(VMX_VMCS_GUEST_FIELD_##REG, pCtx->reg); \
97 rc |= VMXWriteVMCS(VMX_VMCS_GUEST_##REG##_LIMIT, pCtx->reg##Hid.u32Limit); \
98 rc |= VMXWriteVMCS(VMX_VMCS_GUEST_##REG##_BASE, pCtx->reg##Hid.u32Base); \
99 if (pCtx->eflags.u32 & X86_EFL_VM) \
100 val = pCtx->reg##Hid.Attr.u; \
101 else \
102 if (pCtx->reg && pCtx->reg##Hid.Attr.n.u1Present == 1) \
103 val = pCtx->reg##Hid.Attr.u | X86_SEL_TYPE_ACCESSED; \
104 else \
105 val = 0x10000; /* Invalid guest state error otherwise. (BIT(16) = Unusable) */ \
106 \
107 rc |= VMXWriteVMCS(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, val);
108
109#define VMX_READ_SELREG(REG, reg) \
110 VMXReadVMCS(VMX_VMCS_GUEST_FIELD_##REG, &val); \
111 pCtx->reg = val; \
112 VMXReadVMCS(VMX_VMCS_GUEST_##REG##_LIMIT, &val); \
113 pCtx->reg##Hid.u32Limit = val; \
114 VMXReadVMCS(VMX_VMCS_GUEST_##REG##_BASE, &val); \
115 pCtx->reg##Hid.u32Base = val; \
116 VMXReadVMCS(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, &val); \
117 pCtx->reg##Hid.Attr.u = val;
118
119
120#endif /* IN_RING0 */
121
122/** @} */
123
124__END_DECLS
125
126#endif
127
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