[35361] | 1 | /** @file
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[43387] | 2 | * HM - VMX Structures and Definitions. (VMM)
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[35361] | 3 | */
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| 4 |
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| 5 | /*
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[98103] | 6 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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[35361] | 7 | *
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[96407] | 8 | * This file is part of VirtualBox base platform packages, as
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| 9 | * available from https://www.virtualbox.org.
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[35361] | 10 | *
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[96407] | 11 | * This program is free software; you can redistribute it and/or
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| 12 | * modify it under the terms of the GNU General Public License
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| 13 | * as published by the Free Software Foundation, in version 3 of the
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| 14 | * License.
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| 15 | *
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| 16 | * This program is distributed in the hope that it will be useful, but
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| 17 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 19 | * General Public License for more details.
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| 20 | *
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| 21 | * You should have received a copy of the GNU General Public License
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| 22 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 23 | *
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[35361] | 24 | * The contents of this file may alternatively be used under the terms
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| 25 | * of the Common Development and Distribution License Version 1.0
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[96407] | 26 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 27 | * in the VirtualBox distribution, in which case the provisions of the
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[35361] | 28 | * CDDL are applicable instead of those of the GPL.
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| 29 | *
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| 30 | * You may elect to license modified versions of this file under the
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| 31 | * terms and conditions of either the GPL or the CDDL or both.
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[96407] | 32 | *
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| 33 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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[35361] | 34 | */
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| 35 |
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[76558] | 36 | #ifndef VBOX_INCLUDED_vmm_hmvmxinline_h
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| 37 | #define VBOX_INCLUDED_vmm_hmvmxinline_h
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[76507] | 38 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 39 | # pragma once
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| 40 | #endif
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[35361] | 41 |
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[76397] | 42 | #include <VBox/vmm/hm_vmx.h>
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[35361] | 43 | #include <VBox/err.h>
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| 44 |
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[47436] | 45 | /* In Visual C++ versions prior to 2012, the vmx intrinsics are only available
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| 46 | when targeting AMD64. */
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[87402] | 47 | #if RT_INLINE_ASM_USES_INTRIN >= RT_MSC_VER_VS2010 && defined(RT_ARCH_AMD64)
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[84119] | 48 | # include <iprt/sanitized/intrin.h>
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[47436] | 49 | /* We always want them as intrinsics, no functions. */
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| 50 | # pragma intrinsic(__vmx_on)
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| 51 | # pragma intrinsic(__vmx_off)
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| 52 | # pragma intrinsic(__vmx_vmclear)
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| 53 | # pragma intrinsic(__vmx_vmptrld)
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| 54 | # pragma intrinsic(__vmx_vmread)
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| 55 | # pragma intrinsic(__vmx_vmwrite)
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| 56 | # define VMX_USE_MSC_INTRINSICS 1
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| 57 | #else
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| 58 | # define VMX_USE_MSC_INTRINSICS 0
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| 59 | #endif
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| 60 |
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[97052] | 61 | /**
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| 62 | * Whether we think the assembler supports VMX instructions.
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| 63 | *
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| 64 | * Guess that GCC 5 should have sufficient recent enough binutils.
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| 65 | */
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| 66 | #if RT_INLINE_ASM_GNU_STYLE && RT_GNUC_PREREQ(5,0)
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| 67 | # define VMX_USE_GNU_STYLE_INLINE_VMX_INSTRUCTIONS 1
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| 68 | #else
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| 69 | # define VMX_USE_GNU_STYLE_INLINE_VMX_INSTRUCTIONS 0
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| 70 | #endif
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| 71 |
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| 72 | /** Whether we can use the subsection trick to put error handling code
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| 73 | * elsewhere. */
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| 74 | #if VMX_USE_GNU_STYLE_INLINE_VMX_INSTRUCTIONS && defined(__ELF__)
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| 75 | # define VMX_USE_GNU_STYLE_INLINE_SECTION_TRICK 1
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| 76 | #else
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| 77 | # define VMX_USE_GNU_STYLE_INLINE_SECTION_TRICK 0
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| 78 | #endif
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| 79 |
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[80138] | 80 | /* Skip checking VMREAD/VMWRITE failures on non-strict builds. */
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| 81 | #ifndef VBOX_STRICT
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| 82 | # define VBOX_WITH_VMREAD_VMWRITE_NOCHECK
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| 83 | #endif
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[47436] | 84 |
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[80138] | 85 |
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[73771] | 86 | /** @defgroup grp_hm_vmx_inline VMX Inline Helpers
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[76397] | 87 | * @ingroup grp_hm_vmx
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[73771] | 88 | * @{
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| 89 | */
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| 90 | /**
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[73937] | 91 | * Gets the effective width of a VMCS field given it's encoding adjusted for
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| 92 | * HIGH/FULL access for 64-bit fields.
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[73771] | 93 | *
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[73937] | 94 | * @returns The effective VMCS field width.
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[73771] | 95 | * @param uFieldEnc The VMCS field encoding.
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| 96 | *
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| 97 | * @remarks Warning! This function does not verify the encoding is for a valid and
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| 98 | * supported VMCS field.
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| 99 | */
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[80145] | 100 | DECLINLINE(uint8_t) VMXGetVmcsFieldWidthEff(uint32_t uFieldEnc)
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[73771] | 101 | {
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| 102 | /* Only the "HIGH" parts of all 64-bit fields have bit 0 set. */
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| 103 | if (uFieldEnc & RT_BIT(0))
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| 104 | return VMXVMCSFIELDWIDTH_32BIT;
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| 105 |
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| 106 | /* Bits 13:14 contains the width of the VMCS field, see VMXVMCSFIELDWIDTH_XXX. */
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| 107 | return (uFieldEnc >> 13) & 0x3;
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| 108 | }
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[73774] | 109 |
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[80147] | 110 |
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[73774] | 111 | /**
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| 112 | * Returns whether the given VMCS field is a read-only VMCS field or not.
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| 113 | *
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| 114 | * @returns @c true if it's a read-only field, @c false otherwise.
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| 115 | * @param uFieldEnc The VMCS field encoding.
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| 116 | *
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[79202] | 117 | * @remarks Warning! This function does not verify that the encoding is for a valid
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| 118 | * and/or supported VMCS field.
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[73774] | 119 | */
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[80145] | 120 | DECLINLINE(bool) VMXIsVmcsFieldReadOnly(uint32_t uFieldEnc)
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[73774] | 121 | {
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| 122 | /* See Intel spec. B.4.2 "Natural-Width Read-Only Data Fields". */
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[79202] | 123 | return (RT_BF_GET(uFieldEnc, VMX_BF_VMCSFIELD_TYPE) == VMXVMCSFIELDTYPE_VMEXIT_INFO);
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[73774] | 124 | }
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[74073] | 125 |
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[80147] | 126 |
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[74073] | 127 | /**
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| 128 | * Returns whether the given VM-entry interruption-information type is valid or not.
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| 129 | *
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| 130 | * @returns @c true if it's a valid type, @c false otherwise.
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[74103] | 131 | * @param fSupportsMTF Whether the Monitor-Trap Flag CPU feature is supported.
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[74073] | 132 | * @param uType The VM-entry interruption-information type.
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| 133 | */
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[80145] | 134 | DECLINLINE(bool) VMXIsEntryIntInfoTypeValid(bool fSupportsMTF, uint8_t uType)
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[74073] | 135 | {
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| 136 | /* See Intel spec. 26.2.1.3 "VM-Entry Control Fields". */
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| 137 | switch (uType)
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| 138 | {
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| 139 | case VMX_ENTRY_INT_INFO_TYPE_EXT_INT:
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| 140 | case VMX_ENTRY_INT_INFO_TYPE_NMI:
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| 141 | case VMX_ENTRY_INT_INFO_TYPE_HW_XCPT:
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| 142 | case VMX_ENTRY_INT_INFO_TYPE_SW_INT:
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| 143 | case VMX_ENTRY_INT_INFO_TYPE_PRIV_SW_XCPT:
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| 144 | case VMX_ENTRY_INT_INFO_TYPE_SW_XCPT: return true;
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[74103] | 145 | case VMX_ENTRY_INT_INFO_TYPE_OTHER_EVENT: return fSupportsMTF;
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[74073] | 146 | default:
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| 147 | return false;
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| 148 | }
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| 149 | }
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| 150 |
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[80147] | 151 |
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[74073] | 152 | /**
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| 153 | * Returns whether the given VM-entry interruption-information vector and type
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| 154 | * combination is valid or not.
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| 155 | *
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| 156 | * @returns @c true if it's a valid vector/type combination, @c false otherwise.
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| 157 | * @param uVector The VM-entry interruption-information vector.
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| 158 | * @param uType The VM-entry interruption-information type.
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| 159 | *
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| 160 | * @remarks Warning! This function does not validate the type field individually.
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| 161 | * Use it after verifying type is valid using HMVmxIsEntryIntInfoTypeValid.
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| 162 | */
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[80145] | 163 | DECLINLINE(bool) VMXIsEntryIntInfoVectorValid(uint8_t uVector, uint8_t uType)
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[74073] | 164 | {
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| 165 | /* See Intel spec. 26.2.1.3 "VM-Entry Control Fields". */
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| 166 | if ( uType == VMX_ENTRY_INT_INFO_TYPE_NMI
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| 167 | && uVector != X86_XCPT_NMI)
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| 168 | return false;
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| 169 | if ( uType == VMX_ENTRY_INT_INFO_TYPE_HW_XCPT
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| 170 | && uVector > X86_XCPT_LAST)
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| 171 | return false;
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| 172 | if ( uType == VMX_ENTRY_INT_INFO_TYPE_OTHER_EVENT
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[74287] | 173 | && uVector != VMX_ENTRY_INT_INFO_VECTOR_MTF)
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[74073] | 174 | return false;
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| 175 | return true;
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| 176 | }
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[74306] | 177 |
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[80147] | 178 |
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[74306] | 179 | /**
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| 180 | * Returns whether or not the VM-exit is trap-like or fault-like.
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| 181 | *
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[75671] | 182 | * @returns @c true if it's a trap-like VM-exit, @c false otherwise.
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[74306] | 183 | * @param uExitReason The VM-exit reason.
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| 184 | *
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| 185 | * @remarks Warning! This does not validate the VM-exit reason.
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| 186 | */
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[80145] | 187 | DECLINLINE(bool) VMXIsVmexitTrapLike(uint32_t uExitReason)
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[74306] | 188 | {
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| 189 | /*
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| 190 | * Trap-like VM-exits - The instruction causing the VM-exit completes before the
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| 191 | * VM-exit occurs.
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| 192 | *
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| 193 | * Fault-like VM-exits - The instruction causing the VM-exit is not completed before
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| 194 | * the VM-exit occurs.
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| 195 | *
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[74359] | 196 | * See Intel spec. 25.5.2 "Monitor Trap Flag".
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[74306] | 197 | * See Intel spec. 29.1.4 "EOI Virtualization".
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| 198 | * See Intel spec. 29.4.3.3 "APIC-Write VM Exits".
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| 199 | * See Intel spec. 29.1.2 "TPR Virtualization".
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| 200 | */
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[74468] | 201 | /** @todo NSTVMX: r=ramshankar: What about VM-exits due to debug traps (single-step,
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| 202 | * I/O breakpoints, data breakpoints), debug exceptions (data breakpoint)
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| 203 | * delayed by MovSS blocking, machine-check exceptions. */
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[74306] | 204 | switch (uExitReason)
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| 205 | {
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[74359] | 206 | case VMX_EXIT_MTF:
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[74306] | 207 | case VMX_EXIT_VIRTUALIZED_EOI:
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| 208 | case VMX_EXIT_APIC_WRITE:
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| 209 | case VMX_EXIT_TPR_BELOW_THRESHOLD:
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| 210 | return true;
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| 211 | }
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| 212 | return false;
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| 213 | }
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[75671] | 214 |
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[80147] | 215 |
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[75671] | 216 | /**
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| 217 | * Returns whether the VM-entry is vectoring or not given the VM-entry interruption
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| 218 | * information field.
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| 219 | *
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| 220 | * @returns @c true if the VM-entry is vectoring, @c false otherwise.
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[75940] | 221 | * @param uEntryIntInfo The VM-entry interruption information field.
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| 222 | * @param pEntryIntInfoType The VM-entry interruption information type field.
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| 223 | * Optional, can be NULL. Only updated when this
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| 224 | * function returns @c true.
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[75671] | 225 | */
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[80145] | 226 | DECLINLINE(bool) VMXIsVmentryVectoring(uint32_t uEntryIntInfo, uint8_t *pEntryIntInfoType)
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[75671] | 227 | {
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[75940] | 228 | /*
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| 229 | * The definition of what is a vectoring VM-entry is taken
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| 230 | * from Intel spec. 26.6 "Special Features of VM Entry".
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| 231 | */
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[75671] | 232 | if (!VMX_ENTRY_INT_INFO_IS_VALID(uEntryIntInfo))
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| 233 | return false;
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[75942] | 234 |
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[75943] | 235 | /* Scope and keep variable defines on top to satisy archaic c89 nonsense. */
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[75671] | 236 | {
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[75942] | 237 | uint8_t const uType = VMX_ENTRY_INT_INFO_TYPE(uEntryIntInfo);
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| 238 | switch (uType)
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[75940] | 239 | {
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[75942] | 240 | case VMX_ENTRY_INT_INFO_TYPE_EXT_INT:
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| 241 | case VMX_ENTRY_INT_INFO_TYPE_NMI:
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| 242 | case VMX_ENTRY_INT_INFO_TYPE_HW_XCPT:
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| 243 | case VMX_ENTRY_INT_INFO_TYPE_SW_INT:
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| 244 | case VMX_ENTRY_INT_INFO_TYPE_PRIV_SW_XCPT:
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| 245 | case VMX_ENTRY_INT_INFO_TYPE_SW_XCPT:
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| 246 | {
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| 247 | if (pEntryIntInfoType)
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| 248 | *pEntryIntInfoType = uType;
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| 249 | return true;
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| 250 | }
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[75940] | 251 | }
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[75671] | 252 | }
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| 253 | return false;
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| 254 | }
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[80364] | 255 |
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| 256 |
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| 257 | /**
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| 258 | * Gets the description for a VMX abort reason.
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| 259 | *
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| 260 | * @returns The descriptive string.
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| 261 | * @param enmAbort The VMX abort reason.
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| 262 | */
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| 263 | DECLINLINE(const char *) VMXGetAbortDesc(VMXABORT enmAbort)
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| 264 | {
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| 265 | switch (enmAbort)
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| 266 | {
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| 267 | case VMXABORT_NONE: return "VMXABORT_NONE";
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| 268 | case VMXABORT_SAVE_GUEST_MSRS: return "VMXABORT_SAVE_GUEST_MSRS";
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| 269 | case VMXBOART_HOST_PDPTE: return "VMXBOART_HOST_PDPTE";
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| 270 | case VMXABORT_CURRENT_VMCS_CORRUPT: return "VMXABORT_CURRENT_VMCS_CORRUPT";
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| 271 | case VMXABORT_LOAD_HOST_MSR: return "VMXABORT_LOAD_HOST_MSR";
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| 272 | case VMXABORT_MACHINE_CHECK_XCPT: return "VMXABORT_MACHINE_CHECK_XCPT";
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| 273 | case VMXABORT_HOST_NOT_IN_LONG_MODE: return "VMXABORT_HOST_NOT_IN_LONG_MODE";
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| 274 | default:
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| 275 | break;
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| 276 | }
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| 277 | return "Unknown/invalid";
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| 278 | }
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| 279 |
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| 280 |
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| 281 | /**
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| 282 | * Gets the description for a virtual VMCS state.
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| 283 | *
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| 284 | * @returns The descriptive string.
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| 285 | * @param fVmcsState The virtual-VMCS state.
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| 286 | */
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| 287 | DECLINLINE(const char *) VMXGetVmcsStateDesc(uint8_t fVmcsState)
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| 288 | {
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| 289 | switch (fVmcsState)
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| 290 | {
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[102020] | 291 | case VMX_V_VMCS_LAUNCH_STATE_CLEAR: return "Clear";
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[103289] | 292 | case VMX_V_VMCS_LAUNCH_STATE_CLEAR_LEGACY: return "Clear (Legacy)";
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[102020] | 293 | case VMX_V_VMCS_LAUNCH_STATE_LAUNCHED: return "Launched";
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| 294 | default: return "Unknown";
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[80364] | 295 | }
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| 296 | }
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| 297 |
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| 298 |
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| 299 | /**
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| 300 | * Gets the description for a VM-entry interruption information event type.
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| 301 | *
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| 302 | * @returns The descriptive string.
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| 303 | * @param uType The event type.
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| 304 | */
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| 305 | DECLINLINE(const char *) VMXGetEntryIntInfoTypeDesc(uint8_t uType)
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| 306 | {
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| 307 | switch (uType)
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| 308 | {
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| 309 | case VMX_ENTRY_INT_INFO_TYPE_EXT_INT: return "External Interrupt";
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| 310 | case VMX_ENTRY_INT_INFO_TYPE_NMI: return "NMI";
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| 311 | case VMX_ENTRY_INT_INFO_TYPE_HW_XCPT: return "Hardware Exception";
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| 312 | case VMX_ENTRY_INT_INFO_TYPE_SW_INT: return "Software Interrupt";
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| 313 | case VMX_ENTRY_INT_INFO_TYPE_PRIV_SW_XCPT: return "Priv. Software Exception";
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| 314 | case VMX_ENTRY_INT_INFO_TYPE_SW_XCPT: return "Software Exception";
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| 315 | case VMX_ENTRY_INT_INFO_TYPE_OTHER_EVENT: return "Other Event";
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| 316 | default:
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| 317 | break;
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| 318 | }
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| 319 | return "Unknown/invalid";
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| 320 | }
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| 321 |
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| 322 |
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| 323 | /**
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| 324 | * Gets the description for a VM-exit interruption information event type.
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| 325 | *
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| 326 | * @returns The descriptive string.
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| 327 | * @param uType The event type.
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| 328 | */
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| 329 | DECLINLINE(const char *) VMXGetExitIntInfoTypeDesc(uint8_t uType)
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| 330 | {
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| 331 | switch (uType)
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| 332 | {
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| 333 | case VMX_EXIT_INT_INFO_TYPE_EXT_INT: return "External Interrupt";
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| 334 | case VMX_EXIT_INT_INFO_TYPE_NMI: return "NMI";
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| 335 | case VMX_EXIT_INT_INFO_TYPE_HW_XCPT: return "Hardware Exception";
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| 336 | case VMX_EXIT_INT_INFO_TYPE_SW_INT: return "Software Interrupt";
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| 337 | case VMX_EXIT_INT_INFO_TYPE_PRIV_SW_XCPT: return "Priv. Software Exception";
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| 338 | case VMX_EXIT_INT_INFO_TYPE_SW_XCPT: return "Software Exception";
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| 339 | default:
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| 340 | break;
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| 341 | }
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| 342 | return "Unknown/invalid";
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| 343 | }
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| 344 |
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| 345 |
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| 346 | /**
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| 347 | * Gets the description for an IDT-vectoring information event type.
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| 348 | *
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| 349 | * @returns The descriptive string.
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| 350 | * @param uType The event type.
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| 351 | */
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| 352 | DECLINLINE(const char *) VMXGetIdtVectoringInfoTypeDesc(uint8_t uType)
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| 353 | {
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| 354 | switch (uType)
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| 355 | {
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| 356 | case VMX_IDT_VECTORING_INFO_TYPE_EXT_INT: return "External Interrupt";
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| 357 | case VMX_IDT_VECTORING_INFO_TYPE_NMI: return "NMI";
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| 358 | case VMX_IDT_VECTORING_INFO_TYPE_HW_XCPT: return "Hardware Exception";
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| 359 | case VMX_IDT_VECTORING_INFO_TYPE_SW_INT: return "Software Interrupt";
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| 360 | case VMX_IDT_VECTORING_INFO_TYPE_PRIV_SW_XCPT: return "Priv. Software Exception";
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| 361 | case VMX_IDT_VECTORING_INFO_TYPE_SW_XCPT: return "Software Exception";
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| 362 | default:
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| 363 | break;
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| 364 | }
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| 365 | return "Unknown/invalid";
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| 366 | }
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| 367 |
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| 368 |
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[73771] | 369 | /** @} */
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| 370 |
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| 371 |
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[58110] | 372 | /** @defgroup grp_hm_vmx_asm VMX Assembly Helpers
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[35361] | 373 | * @{
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| 374 | */
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[80078] | 375 | #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)
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[35361] | 376 |
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| 377 | /**
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[47123] | 378 | * Dispatches an NMI to the host.
|
---|
| 379 | */
|
---|
| 380 | DECLASM(int) VMXDispatchHostNmi(void);
|
---|
| 381 |
|
---|
| 382 |
|
---|
| 383 | /**
|
---|
[57270] | 384 | * Executes VMXON.
|
---|
[35361] | 385 | *
|
---|
[57270] | 386 | * @returns VBox status code.
|
---|
| 387 | * @param HCPhysVmxOn Physical address of VMXON structure.
|
---|
[35361] | 388 | */
|
---|
[80112] | 389 | #if RT_INLINE_ASM_EXTERNAL && !VMX_USE_MSC_INTRINSICS
|
---|
| 390 | DECLASM(int) VMXEnable(RTHCPHYS HCPhysVmxOn);
|
---|
| 391 | #else
|
---|
| 392 | DECLINLINE(int) VMXEnable(RTHCPHYS HCPhysVmxOn)
|
---|
| 393 | {
|
---|
| 394 | # if VMX_USE_MSC_INTRINSICS
|
---|
| 395 | unsigned char rcMsc = __vmx_on(&HCPhysVmxOn);
|
---|
| 396 | if (RT_LIKELY(rcMsc == 0))
|
---|
| 397 | return VINF_SUCCESS;
|
---|
| 398 | return rcMsc == 2 ? VERR_VMX_INVALID_VMXON_PTR : VERR_VMX_VMXON_FAILED;
|
---|
| 399 |
|
---|
| 400 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
| 401 | # ifdef RT_ARCH_AMD64
|
---|
| 402 | int rc;
|
---|
| 403 | __asm__ __volatile__ (
|
---|
| 404 | "pushq %2 \n\t"
|
---|
| 405 | ".byte 0xf3, 0x0f, 0xc7, 0x34, 0x24 # VMXON [esp] \n\t"
|
---|
| 406 | "ja 2f \n\t"
|
---|
| 407 | "je 1f \n\t"
|
---|
| 408 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMXON_PTR)", %0 \n\t"
|
---|
| 409 | "jmp 2f \n\t"
|
---|
| 410 | "1: \n\t"
|
---|
| 411 | "movl $" RT_XSTR(VERR_VMX_VMXON_FAILED)", %0 \n\t"
|
---|
| 412 | "2: \n\t"
|
---|
| 413 | "add $8, %%rsp \n\t"
|
---|
| 414 | :"=rm"(rc)
|
---|
| 415 | :"0"(VINF_SUCCESS),
|
---|
| 416 | "ir"(HCPhysVmxOn) /* don't allow direct memory reference here, */
|
---|
| 417 | /* this would not work with -fomit-frame-pointer */
|
---|
| 418 | :"memory"
|
---|
| 419 | );
|
---|
| 420 | return rc;
|
---|
| 421 | # else
|
---|
| 422 | int rc;
|
---|
| 423 | __asm__ __volatile__ (
|
---|
| 424 | "push %3 \n\t"
|
---|
| 425 | "push %2 \n\t"
|
---|
| 426 | ".byte 0xf3, 0x0f, 0xc7, 0x34, 0x24 # VMXON [esp] \n\t"
|
---|
| 427 | "ja 2f \n\t"
|
---|
| 428 | "je 1f \n\t"
|
---|
| 429 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMXON_PTR)", %0 \n\t"
|
---|
| 430 | "jmp 2f \n\t"
|
---|
| 431 | "1: \n\t"
|
---|
| 432 | "movl $" RT_XSTR(VERR_VMX_VMXON_FAILED)", %0 \n\t"
|
---|
| 433 | "2: \n\t"
|
---|
| 434 | "add $8, %%esp \n\t"
|
---|
| 435 | :"=rm"(rc)
|
---|
| 436 | :"0"(VINF_SUCCESS),
|
---|
| 437 | "ir"((uint32_t)HCPhysVmxOn), /* don't allow direct memory reference here, */
|
---|
| 438 | "ir"((uint32_t)(HCPhysVmxOn >> 32)) /* this would not work with -fomit-frame-pointer */
|
---|
| 439 | :"memory"
|
---|
| 440 | );
|
---|
| 441 | return rc;
|
---|
| 442 | # endif
|
---|
| 443 |
|
---|
| 444 | # elif defined(RT_ARCH_X86)
|
---|
| 445 | int rc = VINF_SUCCESS;
|
---|
| 446 | __asm
|
---|
| 447 | {
|
---|
| 448 | push dword ptr [HCPhysVmxOn + 4]
|
---|
| 449 | push dword ptr [HCPhysVmxOn]
|
---|
| 450 | _emit 0xf3
|
---|
| 451 | _emit 0x0f
|
---|
| 452 | _emit 0xc7
|
---|
| 453 | _emit 0x34
|
---|
| 454 | _emit 0x24 /* VMXON [esp] */
|
---|
| 455 | jnc vmxon_good
|
---|
| 456 | mov dword ptr [rc], VERR_VMX_INVALID_VMXON_PTR
|
---|
| 457 | jmp the_end
|
---|
| 458 |
|
---|
| 459 | vmxon_good:
|
---|
| 460 | jnz the_end
|
---|
| 461 | mov dword ptr [rc], VERR_VMX_VMXON_FAILED
|
---|
| 462 | the_end:
|
---|
| 463 | add esp, 8
|
---|
| 464 | }
|
---|
| 465 | return rc;
|
---|
| 466 |
|
---|
| 467 | # else
|
---|
| 468 | # error "Shouldn't be here..."
|
---|
| 469 | # endif
|
---|
| 470 | }
|
---|
| 471 | #endif
|
---|
| 472 |
|
---|
| 473 |
|
---|
[35361] | 474 | /**
|
---|
[57270] | 475 | * Executes VMXOFF.
|
---|
[35361] | 476 | */
|
---|
[80112] | 477 | #if RT_INLINE_ASM_EXTERNAL && !VMX_USE_MSC_INTRINSICS
|
---|
| 478 | DECLASM(void) VMXDisable(void);
|
---|
| 479 | #else
|
---|
| 480 | DECLINLINE(void) VMXDisable(void)
|
---|
| 481 | {
|
---|
| 482 | # if VMX_USE_MSC_INTRINSICS
|
---|
| 483 | __vmx_off();
|
---|
| 484 |
|
---|
| 485 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
| 486 | __asm__ __volatile__ (
|
---|
| 487 | ".byte 0x0f, 0x01, 0xc4 # VMXOFF \n\t"
|
---|
| 488 | );
|
---|
| 489 |
|
---|
| 490 | # elif defined(RT_ARCH_X86)
|
---|
| 491 | __asm
|
---|
| 492 | {
|
---|
| 493 | _emit 0x0f
|
---|
| 494 | _emit 0x01
|
---|
| 495 | _emit 0xc4 /* VMXOFF */
|
---|
| 496 | }
|
---|
| 497 |
|
---|
| 498 | # else
|
---|
| 499 | # error "Shouldn't be here..."
|
---|
| 500 | # endif
|
---|
| 501 | }
|
---|
| 502 | #endif
|
---|
| 503 |
|
---|
| 504 |
|
---|
[35361] | 505 | /**
|
---|
[57270] | 506 | * Executes VMCLEAR.
|
---|
[35361] | 507 | *
|
---|
[57270] | 508 | * @returns VBox status code.
|
---|
| 509 | * @param HCPhysVmcs Physical address of VM control structure.
|
---|
[35361] | 510 | */
|
---|
[80112] | 511 | #if RT_INLINE_ASM_EXTERNAL && !VMX_USE_MSC_INTRINSICS
|
---|
| 512 | DECLASM(int) VMXClearVmcs(RTHCPHYS HCPhysVmcs);
|
---|
| 513 | #else
|
---|
| 514 | DECLINLINE(int) VMXClearVmcs(RTHCPHYS HCPhysVmcs)
|
---|
| 515 | {
|
---|
| 516 | # if VMX_USE_MSC_INTRINSICS
|
---|
| 517 | unsigned char rcMsc = __vmx_vmclear(&HCPhysVmcs);
|
---|
| 518 | if (RT_LIKELY(rcMsc == 0))
|
---|
| 519 | return VINF_SUCCESS;
|
---|
| 520 | return VERR_VMX_INVALID_VMCS_PTR;
|
---|
| 521 |
|
---|
| 522 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
| 523 | # ifdef RT_ARCH_AMD64
|
---|
| 524 | int rc;
|
---|
| 525 | __asm__ __volatile__ (
|
---|
| 526 | "pushq %2 \n\t"
|
---|
| 527 | ".byte 0x66, 0x0f, 0xc7, 0x34, 0x24 # VMCLEAR [esp] \n\t"
|
---|
| 528 | "jnc 1f \n\t"
|
---|
| 529 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_PTR)", %0 \n\t"
|
---|
| 530 | "1: \n\t"
|
---|
| 531 | "add $8, %%rsp \n\t"
|
---|
| 532 | :"=rm"(rc)
|
---|
| 533 | :"0"(VINF_SUCCESS),
|
---|
| 534 | "ir"(HCPhysVmcs) /* don't allow direct memory reference here, */
|
---|
| 535 | /* this would not work with -fomit-frame-pointer */
|
---|
| 536 | :"memory"
|
---|
| 537 | );
|
---|
| 538 | return rc;
|
---|
| 539 | # else
|
---|
| 540 | int rc;
|
---|
| 541 | __asm__ __volatile__ (
|
---|
| 542 | "push %3 \n\t"
|
---|
| 543 | "push %2 \n\t"
|
---|
| 544 | ".byte 0x66, 0x0f, 0xc7, 0x34, 0x24 # VMCLEAR [esp] \n\t"
|
---|
| 545 | "jnc 1f \n\t"
|
---|
| 546 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_PTR)", %0 \n\t"
|
---|
| 547 | "1: \n\t"
|
---|
| 548 | "add $8, %%esp \n\t"
|
---|
| 549 | :"=rm"(rc)
|
---|
| 550 | :"0"(VINF_SUCCESS),
|
---|
| 551 | "ir"((uint32_t)HCPhysVmcs), /* don't allow direct memory reference here, */
|
---|
| 552 | "ir"((uint32_t)(HCPhysVmcs >> 32)) /* this would not work with -fomit-frame-pointer */
|
---|
| 553 | :"memory"
|
---|
| 554 | );
|
---|
| 555 | return rc;
|
---|
| 556 | # endif
|
---|
| 557 |
|
---|
| 558 | # elif defined(RT_ARCH_X86)
|
---|
| 559 | int rc = VINF_SUCCESS;
|
---|
| 560 | __asm
|
---|
| 561 | {
|
---|
| 562 | push dword ptr [HCPhysVmcs + 4]
|
---|
| 563 | push dword ptr [HCPhysVmcs]
|
---|
| 564 | _emit 0x66
|
---|
| 565 | _emit 0x0f
|
---|
| 566 | _emit 0xc7
|
---|
| 567 | _emit 0x34
|
---|
| 568 | _emit 0x24 /* VMCLEAR [esp] */
|
---|
| 569 | jnc success
|
---|
| 570 | mov dword ptr [rc], VERR_VMX_INVALID_VMCS_PTR
|
---|
| 571 | success:
|
---|
| 572 | add esp, 8
|
---|
| 573 | }
|
---|
| 574 | return rc;
|
---|
| 575 |
|
---|
| 576 | # else
|
---|
| 577 | # error "Shouldn't be here..."
|
---|
| 578 | # endif
|
---|
| 579 | }
|
---|
| 580 | #endif
|
---|
| 581 |
|
---|
| 582 |
|
---|
[35361] | 583 | /**
|
---|
[57270] | 584 | * Executes VMPTRLD.
|
---|
[35361] | 585 | *
|
---|
[57270] | 586 | * @returns VBox status code.
|
---|
| 587 | * @param HCPhysVmcs Physical address of VMCS structure.
|
---|
[35361] | 588 | */
|
---|
[80112] | 589 | #if RT_INLINE_ASM_EXTERNAL && !VMX_USE_MSC_INTRINSICS
|
---|
| 590 | DECLASM(int) VMXLoadVmcs(RTHCPHYS HCPhysVmcs);
|
---|
| 591 | #else
|
---|
| 592 | DECLINLINE(int) VMXLoadVmcs(RTHCPHYS HCPhysVmcs)
|
---|
| 593 | {
|
---|
| 594 | # if VMX_USE_MSC_INTRINSICS
|
---|
| 595 | unsigned char rcMsc = __vmx_vmptrld(&HCPhysVmcs);
|
---|
| 596 | if (RT_LIKELY(rcMsc == 0))
|
---|
| 597 | return VINF_SUCCESS;
|
---|
| 598 | return VERR_VMX_INVALID_VMCS_PTR;
|
---|
| 599 |
|
---|
| 600 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
| 601 | # ifdef RT_ARCH_AMD64
|
---|
| 602 | int rc;
|
---|
| 603 | __asm__ __volatile__ (
|
---|
| 604 | "pushq %2 \n\t"
|
---|
| 605 | ".byte 0x0f, 0xc7, 0x34, 0x24 # VMPTRLD [esp] \n\t"
|
---|
| 606 | "jnc 1f \n\t"
|
---|
| 607 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_PTR)", %0 \n\t"
|
---|
| 608 | "1: \n\t"
|
---|
| 609 | "add $8, %%rsp \n\t"
|
---|
| 610 | :"=rm"(rc)
|
---|
| 611 | :"0"(VINF_SUCCESS),
|
---|
| 612 | "ir"(HCPhysVmcs) /* don't allow direct memory reference here, */
|
---|
| 613 | /* this will not work with -fomit-frame-pointer */
|
---|
| 614 | :"memory"
|
---|
| 615 | );
|
---|
| 616 | return rc;
|
---|
| 617 | # else
|
---|
| 618 | int rc;
|
---|
| 619 | __asm__ __volatile__ (
|
---|
| 620 | "push %3 \n\t"
|
---|
| 621 | "push %2 \n\t"
|
---|
| 622 | ".byte 0x0f, 0xc7, 0x34, 0x24 # VMPTRLD [esp] \n\t"
|
---|
| 623 | "jnc 1f \n\t"
|
---|
| 624 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_PTR)", %0 \n\t"
|
---|
| 625 | "1: \n\t"
|
---|
| 626 | "add $8, %%esp \n\t"
|
---|
| 627 | :"=rm"(rc)
|
---|
| 628 | :"0"(VINF_SUCCESS),
|
---|
| 629 | "ir"((uint32_t)HCPhysVmcs), /* don't allow direct memory reference here, */
|
---|
| 630 | "ir"((uint32_t)(HCPhysVmcs >> 32)) /* this will not work with -fomit-frame-pointer */
|
---|
| 631 | :"memory"
|
---|
| 632 | );
|
---|
| 633 | return rc;
|
---|
| 634 | # endif
|
---|
| 635 |
|
---|
| 636 | # elif defined(RT_ARCH_X86)
|
---|
| 637 | int rc = VINF_SUCCESS;
|
---|
| 638 | __asm
|
---|
| 639 | {
|
---|
| 640 | push dword ptr [HCPhysVmcs + 4]
|
---|
| 641 | push dword ptr [HCPhysVmcs]
|
---|
| 642 | _emit 0x0f
|
---|
| 643 | _emit 0xc7
|
---|
| 644 | _emit 0x34
|
---|
| 645 | _emit 0x24 /* VMPTRLD [esp] */
|
---|
| 646 | jnc success
|
---|
| 647 | mov dword ptr [rc], VERR_VMX_INVALID_VMCS_PTR
|
---|
| 648 | success:
|
---|
| 649 | add esp, 8
|
---|
| 650 | }
|
---|
| 651 | return rc;
|
---|
| 652 |
|
---|
| 653 | # else
|
---|
| 654 | # error "Shouldn't be here..."
|
---|
| 655 | # endif
|
---|
| 656 | }
|
---|
| 657 | #endif
|
---|
| 658 |
|
---|
[47436] | 659 |
|
---|
[35361] | 660 | /**
|
---|
[57270] | 661 | * Executes VMPTRST.
|
---|
[35361] | 662 | *
|
---|
[57270] | 663 | * @returns VBox status code.
|
---|
| 664 | * @param pHCPhysVmcs Where to store the physical address of the current
|
---|
| 665 | * VMCS.
|
---|
[35361] | 666 | */
|
---|
[78220] | 667 | DECLASM(int) VMXGetCurrentVmcs(RTHCPHYS *pHCPhysVmcs);
|
---|
[35361] | 668 |
|
---|
[72854] | 669 |
|
---|
[35361] | 670 | /**
|
---|
[80078] | 671 | * Executes VMWRITE for a 32-bit field.
|
---|
[35361] | 672 | *
|
---|
[57270] | 673 | * @returns VBox status code.
|
---|
| 674 | * @retval VINF_SUCCESS.
|
---|
| 675 | * @retval VERR_VMX_INVALID_VMCS_PTR.
|
---|
| 676 | * @retval VERR_VMX_INVALID_VMCS_FIELD.
|
---|
[47445] | 677 | *
|
---|
[73772] | 678 | * @param uFieldEnc VMCS field encoding.
|
---|
[73773] | 679 | * @param u32Val The 32-bit value to set.
|
---|
[47445] | 680 | *
|
---|
[57270] | 681 | * @remarks The values of the two status codes can be OR'ed together, the result
|
---|
[47445] | 682 | * will be VERR_VMX_INVALID_VMCS_PTR.
|
---|
[35361] | 683 | */
|
---|
[80112] | 684 | #if RT_INLINE_ASM_EXTERNAL && !VMX_USE_MSC_INTRINSICS
|
---|
| 685 | DECLASM(int) VMXWriteVmcs32(uint32_t uFieldEnc, uint32_t u32Val);
|
---|
| 686 | #else
|
---|
| 687 | DECLINLINE(int) VMXWriteVmcs32(uint32_t uFieldEnc, uint32_t u32Val)
|
---|
| 688 | {
|
---|
| 689 | # if VMX_USE_MSC_INTRINSICS
|
---|
[80121] | 690 | # ifdef VBOX_WITH_VMREAD_VMWRITE_NOCHECK
|
---|
| 691 | __vmx_vmwrite(uFieldEnc, u32Val);
|
---|
| 692 | return VINF_SUCCESS;
|
---|
| 693 | # else
|
---|
| 694 | unsigned char rcMsc = __vmx_vmwrite(uFieldEnc, u32Val);
|
---|
[80112] | 695 | if (RT_LIKELY(rcMsc == 0))
|
---|
| 696 | return VINF_SUCCESS;
|
---|
| 697 | return rcMsc == 2 ? VERR_VMX_INVALID_VMCS_PTR : VERR_VMX_INVALID_VMCS_FIELD;
|
---|
[80121] | 698 | # endif
|
---|
[80112] | 699 |
|
---|
| 700 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
[80121] | 701 | # ifdef VBOX_WITH_VMREAD_VMWRITE_NOCHECK
|
---|
[80112] | 702 | __asm__ __volatile__ (
|
---|
| 703 | ".byte 0x0f, 0x79, 0xc2 # VMWRITE eax, edx \n\t"
|
---|
[80121] | 704 | :
|
---|
| 705 | :"a"(uFieldEnc),
|
---|
| 706 | "d"(u32Val)
|
---|
| 707 | );
|
---|
| 708 | return VINF_SUCCESS;
|
---|
| 709 | # else
|
---|
| 710 | int rc;
|
---|
| 711 | __asm__ __volatile__ (
|
---|
| 712 | ".byte 0x0f, 0x79, 0xc2 # VMWRITE eax, edx \n\t"
|
---|
[80112] | 713 | "ja 2f \n\t"
|
---|
| 714 | "je 1f \n\t"
|
---|
| 715 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_PTR)", %0 \n\t"
|
---|
| 716 | "jmp 2f \n\t"
|
---|
| 717 | "1: \n\t"
|
---|
| 718 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_FIELD)", %0 \n\t"
|
---|
| 719 | "2: \n\t"
|
---|
| 720 | :"=rm"(rc)
|
---|
| 721 | :"0"(VINF_SUCCESS),
|
---|
| 722 | "a"(uFieldEnc),
|
---|
| 723 | "d"(u32Val)
|
---|
| 724 | );
|
---|
| 725 | return rc;
|
---|
[80121] | 726 | # endif
|
---|
[80112] | 727 |
|
---|
| 728 | # elif defined(RT_ARCH_X86)
|
---|
| 729 | int rc = VINF_SUCCESS;
|
---|
| 730 | __asm
|
---|
| 731 | {
|
---|
| 732 | push dword ptr [u32Val]
|
---|
| 733 | mov eax, [uFieldEnc]
|
---|
| 734 | _emit 0x0f
|
---|
| 735 | _emit 0x79
|
---|
| 736 | _emit 0x04
|
---|
| 737 | _emit 0x24 /* VMWRITE eax, [esp] */
|
---|
| 738 | jnc valid_vmcs
|
---|
| 739 | mov dword ptr [rc], VERR_VMX_INVALID_VMCS_PTR
|
---|
| 740 | jmp the_end
|
---|
| 741 | valid_vmcs:
|
---|
| 742 | jnz the_end
|
---|
| 743 | mov dword ptr [rc], VERR_VMX_INVALID_VMCS_FIELD
|
---|
| 744 | the_end:
|
---|
| 745 | add esp, 4
|
---|
| 746 | }
|
---|
| 747 | return rc;
|
---|
| 748 |
|
---|
| 749 | # else
|
---|
| 750 | # error "Shouldn't be here..."
|
---|
| 751 | # endif
|
---|
| 752 | }
|
---|
| 753 | #endif
|
---|
| 754 |
|
---|
| 755 |
|
---|
[35361] | 756 | /**
|
---|
[80078] | 757 | * Executes VMWRITE for a 64-bit field.
|
---|
[35361] | 758 | *
|
---|
[57270] | 759 | * @returns VBox status code.
|
---|
| 760 | * @retval VINF_SUCCESS.
|
---|
| 761 | * @retval VERR_VMX_INVALID_VMCS_PTR.
|
---|
| 762 | * @retval VERR_VMX_INVALID_VMCS_FIELD.
|
---|
[47445] | 763 | *
|
---|
[73773] | 764 | * @param uFieldEnc The VMCS field encoding.
|
---|
| 765 | * @param u64Val The 16, 32 or 64-bit value to set.
|
---|
[47445] | 766 | *
|
---|
[57270] | 767 | * @remarks The values of the two status codes can be OR'ed together, the result
|
---|
[47445] | 768 | * will be VERR_VMX_INVALID_VMCS_PTR.
|
---|
[35361] | 769 | */
|
---|
[80112] | 770 | #if defined(RT_ARCH_X86) || (RT_INLINE_ASM_EXTERNAL && !VMX_USE_MSC_INTRINSICS)
|
---|
| 771 | DECLASM(int) VMXWriteVmcs64(uint32_t uFieldEnc, uint64_t u64Val);
|
---|
| 772 | #else
|
---|
| 773 | DECLINLINE(int) VMXWriteVmcs64(uint32_t uFieldEnc, uint64_t u64Val)
|
---|
| 774 | {
|
---|
| 775 | # if VMX_USE_MSC_INTRINSICS
|
---|
[80121] | 776 | # ifdef VBOX_WITH_VMREAD_VMWRITE_NOCHECK
|
---|
| 777 | __vmx_vmwrite(uFieldEnc, u64Val);
|
---|
| 778 | return VINF_SUCCESS;
|
---|
| 779 | # else
|
---|
[80112] | 780 | unsigned char rcMsc = __vmx_vmwrite(uFieldEnc, u64Val);
|
---|
| 781 | if (RT_LIKELY(rcMsc == 0))
|
---|
| 782 | return VINF_SUCCESS;
|
---|
| 783 | return rcMsc == 2 ? VERR_VMX_INVALID_VMCS_PTR : VERR_VMX_INVALID_VMCS_FIELD;
|
---|
[80121] | 784 | # endif
|
---|
[80112] | 785 |
|
---|
| 786 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
[80121] | 787 | # ifdef VBOX_WITH_VMREAD_VMWRITE_NOCHECK
|
---|
| 788 | __asm__ __volatile__ (
|
---|
| 789 | ".byte 0x0f, 0x79, 0xc2 # VMWRITE eax, edx \n\t"
|
---|
| 790 | :
|
---|
| 791 | :"a"(uFieldEnc),
|
---|
| 792 | "d"(u64Val)
|
---|
| 793 | );
|
---|
| 794 | return VINF_SUCCESS;
|
---|
| 795 | # else
|
---|
[80112] | 796 | int rc;
|
---|
| 797 | __asm__ __volatile__ (
|
---|
| 798 | ".byte 0x0f, 0x79, 0xc2 # VMWRITE eax, edx \n\t"
|
---|
| 799 | "ja 2f \n\t"
|
---|
| 800 | "je 1f \n\t"
|
---|
| 801 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_PTR)", %0 \n\t"
|
---|
| 802 | "jmp 2f \n\t"
|
---|
| 803 | "1: \n\t"
|
---|
| 804 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_FIELD)", %0 \n\t"
|
---|
| 805 | "2: \n\t"
|
---|
| 806 | :"=rm"(rc)
|
---|
| 807 | :"0"(VINF_SUCCESS),
|
---|
| 808 | "a"(uFieldEnc),
|
---|
| 809 | "d"(u64Val)
|
---|
| 810 | );
|
---|
| 811 | return rc;
|
---|
[80121] | 812 | # endif
|
---|
[80112] | 813 |
|
---|
| 814 | # else
|
---|
| 815 | # error "Shouldn't be here..."
|
---|
| 816 | # endif
|
---|
| 817 | }
|
---|
| 818 | #endif
|
---|
| 819 |
|
---|
| 820 |
|
---|
[80084] | 821 | /**
|
---|
| 822 | * Executes VMWRITE for a 16-bit VMCS field.
|
---|
| 823 | *
|
---|
| 824 | * @returns VBox status code.
|
---|
| 825 | * @retval VINF_SUCCESS.
|
---|
| 826 | * @retval VERR_VMX_INVALID_VMCS_PTR.
|
---|
| 827 | * @retval VERR_VMX_INVALID_VMCS_FIELD.
|
---|
| 828 | *
|
---|
| 829 | * @param uVmcsField The VMCS field.
|
---|
| 830 | * @param u16Val The 16-bit value to set.
|
---|
| 831 | *
|
---|
| 832 | * @remarks The values of the two status codes can be OR'ed together, the result
|
---|
| 833 | * will be VERR_VMX_INVALID_VMCS_PTR.
|
---|
| 834 | */
|
---|
| 835 | DECLINLINE(int) VMXWriteVmcs16(uint32_t uVmcsField, uint16_t u16Val)
|
---|
| 836 | {
|
---|
[80093] | 837 | AssertMsg(RT_BF_GET(uVmcsField, VMX_BF_VMCSFIELD_WIDTH) == VMX_VMCSFIELD_WIDTH_16BIT, ("%#RX32\n", uVmcsField));
|
---|
[80085] | 838 | return VMXWriteVmcs32(uVmcsField, u16Val);
|
---|
[80084] | 839 | }
|
---|
| 840 |
|
---|
| 841 |
|
---|
[80097] | 842 | /**
|
---|
| 843 | * Executes VMWRITE for a natural-width VMCS field.
|
---|
| 844 | */
|
---|
[80078] | 845 | #ifdef RT_ARCH_AMD64
|
---|
[80097] | 846 | # define VMXWriteVmcsNw VMXWriteVmcs64
|
---|
[80078] | 847 | #else
|
---|
[80097] | 848 | # define VMXWriteVmcsNw VMXWriteVmcs32
|
---|
[53615] | 849 | #endif
|
---|
[35361] | 850 |
|
---|
| 851 |
|
---|
| 852 | /**
|
---|
[57270] | 853 | * Invalidate a page using INVEPT.
|
---|
| 854 | *
|
---|
| 855 | * @returns VBox status code.
|
---|
| 856 | * @param enmFlush Type of flush.
|
---|
| 857 | * @param pDescriptor Pointer to the descriptor.
|
---|
[35361] | 858 | */
|
---|
[72855] | 859 | DECLASM(int) VMXR0InvEPT(VMXTLBFLUSHEPT enmFlush, uint64_t *pDescriptor);
|
---|
[35361] | 860 |
|
---|
[72854] | 861 |
|
---|
[35361] | 862 | /**
|
---|
[57270] | 863 | * Invalidate a page using INVVPID.
|
---|
| 864 | *
|
---|
| 865 | * @returns VBox status code.
|
---|
| 866 | * @param enmFlush Type of flush.
|
---|
| 867 | * @param pDescriptor Pointer to the descriptor.
|
---|
[35361] | 868 | */
|
---|
[72855] | 869 | DECLASM(int) VMXR0InvVPID(VMXTLBFLUSHVPID enmFlush, uint64_t *pDescriptor);
|
---|
[35361] | 870 |
|
---|
[72854] | 871 |
|
---|
[35361] | 872 | /**
|
---|
[73773] | 873 | * Executes VMREAD for a 32-bit field.
|
---|
[35361] | 874 | *
|
---|
[57270] | 875 | * @returns VBox status code.
|
---|
| 876 | * @retval VINF_SUCCESS.
|
---|
| 877 | * @retval VERR_VMX_INVALID_VMCS_PTR.
|
---|
| 878 | * @retval VERR_VMX_INVALID_VMCS_FIELD.
|
---|
[47445] | 879 | *
|
---|
[73773] | 880 | * @param uFieldEnc The VMCS field encoding.
|
---|
| 881 | * @param pData Where to store VMCS field value.
|
---|
[47445] | 882 | *
|
---|
[57270] | 883 | * @remarks The values of the two status codes can be OR'ed together, the result
|
---|
[47445] | 884 | * will be VERR_VMX_INVALID_VMCS_PTR.
|
---|
[35361] | 885 | */
|
---|
[80112] | 886 | #if RT_INLINE_ASM_EXTERNAL && !VMX_USE_MSC_INTRINSICS
|
---|
| 887 | DECLASM(int) VMXReadVmcs32(uint32_t uFieldEnc, uint32_t *pData);
|
---|
| 888 | #else
|
---|
| 889 | DECLINLINE(int) VMXReadVmcs32(uint32_t uFieldEnc, uint32_t *pData)
|
---|
| 890 | {
|
---|
| 891 | # if VMX_USE_MSC_INTRINSICS
|
---|
[80121] | 892 | # ifdef VBOX_WITH_VMREAD_VMWRITE_NOCHECK
|
---|
| 893 | uint64_t u64Tmp = 0;
|
---|
| 894 | __vmx_vmread(uFieldEnc, &u64Tmp);
|
---|
| 895 | *pData = (uint32_t)u64Tmp;
|
---|
| 896 | return VINF_SUCCESS;
|
---|
| 897 | # else
|
---|
[80112] | 898 | unsigned char rcMsc;
|
---|
| 899 | uint64_t u64Tmp;
|
---|
| 900 | rcMsc = __vmx_vmread(uFieldEnc, &u64Tmp);
|
---|
| 901 | *pData = (uint32_t)u64Tmp;
|
---|
| 902 | if (RT_LIKELY(rcMsc == 0))
|
---|
| 903 | return VINF_SUCCESS;
|
---|
| 904 | return rcMsc == 2 ? VERR_VMX_INVALID_VMCS_PTR : VERR_VMX_INVALID_VMCS_FIELD;
|
---|
[80121] | 905 | # endif
|
---|
[80112] | 906 |
|
---|
[97052] | 907 | # elif VMX_USE_GNU_STYLE_INLINE_VMX_INSTRUCTIONS
|
---|
| 908 | RTCCUINTREG uTmp = 0;
|
---|
| 909 | # ifdef VBOX_WITH_VMREAD_VMWRITE_NOCHECK
|
---|
| 910 | __asm__ __volatile__("vmread %[uField],%[uDst]"
|
---|
| 911 | : [uDst] "=mr" (uTmp)
|
---|
| 912 | : [uField] "r" ((RTCCUINTREG)uFieldEnc));
|
---|
| 913 | *pData = (uint32_t)uTmp;
|
---|
| 914 | return VINF_SUCCESS;
|
---|
| 915 | # else
|
---|
| 916 | #if 0
|
---|
| 917 | int rc;
|
---|
| 918 | __asm__ __volatile__("vmread %[uField],%[uDst]\n\t"
|
---|
| 919 | "movl %[rcSuccess],%[rc]\n\t"
|
---|
| 920 | # if VMX_USE_GNU_STYLE_INLINE_SECTION_TRICK
|
---|
| 921 | "jna 1f\n\t"
|
---|
| 922 | ".section .text.vmread_failures, \"ax?\"\n\t"
|
---|
| 923 | "1:\n\t"
|
---|
| 924 | "movl %[rcInvalidVmcsPtr],%[rc]\n\t"
|
---|
| 925 | "jnz 2f\n\t"
|
---|
| 926 | "movl %[rcInvalidVmcsField],%[rc]\n\t"
|
---|
| 927 | "2:\n\t"
|
---|
| 928 | "jmp 3f\n\t"
|
---|
| 929 | ".previous\n\t"
|
---|
| 930 | "3:\n\t"
|
---|
| 931 | # else
|
---|
| 932 | "ja 1f\n\t"
|
---|
| 933 | "movl %[rcInvalidVmcsPtr],%[rc]\n\t"
|
---|
| 934 | "jnz 1f\n\t"
|
---|
| 935 | "movl %[rcInvalidVmcsField],%[rc]\n\t"
|
---|
| 936 | "1:\n\t"
|
---|
| 937 | # endif
|
---|
| 938 | : [uDst] "=mr" (uTmp)
|
---|
| 939 | , [rc] "=r" (rc)
|
---|
| 940 | : [uField] "r" ((RTCCUINTREG)uFieldEnc)
|
---|
| 941 | , [rcSuccess] "i" (VINF_SUCCESS)
|
---|
| 942 | , [rcInvalidVmcsPtr] "i" (VERR_VMX_INVALID_VMCS_PTR)
|
---|
| 943 | , [rcInvalidVmcsField] "i" (VERR_VMX_INVALID_VMCS_FIELD));
|
---|
| 944 | *pData = uTmp;
|
---|
| 945 | return rc;
|
---|
| 946 | #else
|
---|
| 947 | int fSuccess, fFieldError;
|
---|
| 948 | __asm__ __volatile__("vmread %[uField],%[uDst]"
|
---|
| 949 | : [uDst] "=mr" (uTmp)
|
---|
| 950 | , "=@cca" (fSuccess)
|
---|
| 951 | , "=@ccnc" (fFieldError)
|
---|
| 952 | : [uField] "r" ((RTCCUINTREG)uFieldEnc));
|
---|
| 953 | *pData = uTmp;
|
---|
| 954 | return RT_LIKELY(fSuccess) ? VINF_SUCCESS : fFieldError ? VERR_VMX_INVALID_VMCS_FIELD : VERR_VMX_INVALID_VMCS_PTR;
|
---|
| 955 | #endif
|
---|
| 956 | # endif
|
---|
| 957 |
|
---|
[80112] | 958 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
[80121] | 959 | # ifdef VBOX_WITH_VMREAD_VMWRITE_NOCHECK
|
---|
| 960 | __asm__ __volatile__ (
|
---|
| 961 | ".byte 0x0f, 0x78, 0xc2 # VMREAD eax, edx \n\t"
|
---|
| 962 | :"=d"(*pData)
|
---|
| 963 | :"a"(uFieldEnc),
|
---|
| 964 | "d"(0)
|
---|
| 965 | );
|
---|
| 966 | return VINF_SUCCESS;
|
---|
| 967 | # else
|
---|
[80112] | 968 | int rc;
|
---|
| 969 | __asm__ __volatile__ (
|
---|
| 970 | "movl $" RT_XSTR(VINF_SUCCESS)", %0 \n\t"
|
---|
| 971 | ".byte 0x0f, 0x78, 0xc2 # VMREAD eax, edx \n\t"
|
---|
| 972 | "ja 2f \n\t"
|
---|
| 973 | "je 1f \n\t"
|
---|
| 974 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_PTR)", %0 \n\t"
|
---|
| 975 | "jmp 2f \n\t"
|
---|
| 976 | "1: \n\t"
|
---|
| 977 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_FIELD)", %0 \n\t"
|
---|
| 978 | "2: \n\t"
|
---|
| 979 | :"=&r"(rc),
|
---|
| 980 | "=d"(*pData)
|
---|
| 981 | :"a"(uFieldEnc),
|
---|
| 982 | "d"(0)
|
---|
| 983 | );
|
---|
| 984 | return rc;
|
---|
[80121] | 985 | # endif
|
---|
[80112] | 986 |
|
---|
| 987 | # elif defined(RT_ARCH_X86)
|
---|
| 988 | int rc = VINF_SUCCESS;
|
---|
| 989 | __asm
|
---|
| 990 | {
|
---|
| 991 | sub esp, 4
|
---|
| 992 | mov dword ptr [esp], 0
|
---|
| 993 | mov eax, [uFieldEnc]
|
---|
| 994 | _emit 0x0f
|
---|
| 995 | _emit 0x78
|
---|
| 996 | _emit 0x04
|
---|
| 997 | _emit 0x24 /* VMREAD eax, [esp] */
|
---|
| 998 | mov edx, pData
|
---|
| 999 | pop dword ptr [edx]
|
---|
| 1000 | jnc valid_vmcs
|
---|
| 1001 | mov dword ptr [rc], VERR_VMX_INVALID_VMCS_PTR
|
---|
| 1002 | jmp the_end
|
---|
| 1003 | valid_vmcs:
|
---|
| 1004 | jnz the_end
|
---|
| 1005 | mov dword ptr [rc], VERR_VMX_INVALID_VMCS_FIELD
|
---|
| 1006 | the_end:
|
---|
| 1007 | }
|
---|
| 1008 | return rc;
|
---|
| 1009 |
|
---|
| 1010 | # else
|
---|
| 1011 | # error "Shouldn't be here..."
|
---|
| 1012 | # endif
|
---|
| 1013 | }
|
---|
| 1014 | #endif
|
---|
| 1015 |
|
---|
[47436] | 1016 |
|
---|
[35361] | 1017 | /**
|
---|
[73773] | 1018 | * Executes VMREAD for a 64-bit field.
|
---|
[35361] | 1019 | *
|
---|
[57270] | 1020 | * @returns VBox status code.
|
---|
| 1021 | * @retval VINF_SUCCESS.
|
---|
| 1022 | * @retval VERR_VMX_INVALID_VMCS_PTR.
|
---|
| 1023 | * @retval VERR_VMX_INVALID_VMCS_FIELD.
|
---|
[47445] | 1024 | *
|
---|
[73773] | 1025 | * @param uFieldEnc The VMCS field encoding.
|
---|
| 1026 | * @param pData Where to store VMCS field value.
|
---|
[47445] | 1027 | *
|
---|
[57270] | 1028 | * @remarks The values of the two status codes can be OR'ed together, the result
|
---|
[47445] | 1029 | * will be VERR_VMX_INVALID_VMCS_PTR.
|
---|
[35361] | 1030 | */
|
---|
[80112] | 1031 | #if defined(RT_ARCH_X86) || (RT_INLINE_ASM_EXTERNAL && !VMX_USE_MSC_INTRINSICS)
|
---|
| 1032 | DECLASM(int) VMXReadVmcs64(uint32_t uFieldEnc, uint64_t *pData);
|
---|
| 1033 | #else
|
---|
| 1034 | DECLINLINE(int) VMXReadVmcs64(uint32_t uFieldEnc, uint64_t *pData)
|
---|
| 1035 | {
|
---|
| 1036 | # if VMX_USE_MSC_INTRINSICS
|
---|
[80124] | 1037 | # ifdef VBOX_WITH_VMREAD_VMWRITE_NOCHECK
|
---|
[80121] | 1038 | __vmx_vmread(uFieldEnc, pData);
|
---|
| 1039 | return VINF_SUCCESS;
|
---|
| 1040 | # else
|
---|
[80112] | 1041 | unsigned char rcMsc;
|
---|
| 1042 | rcMsc = __vmx_vmread(uFieldEnc, pData);
|
---|
| 1043 | if (RT_LIKELY(rcMsc == 0))
|
---|
| 1044 | return VINF_SUCCESS;
|
---|
| 1045 | return rcMsc == 2 ? VERR_VMX_INVALID_VMCS_PTR : VERR_VMX_INVALID_VMCS_FIELD;
|
---|
[80121] | 1046 | # endif
|
---|
[80112] | 1047 |
|
---|
[97052] | 1048 | # elif VMX_USE_GNU_STYLE_INLINE_VMX_INSTRUCTIONS
|
---|
| 1049 | uint64_t uTmp = 0;
|
---|
| 1050 | # ifdef VBOX_WITH_VMREAD_VMWRITE_NOCHECK
|
---|
| 1051 | __asm__ __volatile__("vmreadq %[uField],%[uDst]"
|
---|
| 1052 | : [uDst] "=m" (uTmp)
|
---|
| 1053 | : [uField] "r" ((uint64_t)uFieldEnc));
|
---|
| 1054 | *pData = uTmp;
|
---|
| 1055 | return VINF_SUCCESS;
|
---|
| 1056 | # elif 0
|
---|
| 1057 | int rc;
|
---|
| 1058 | __asm__ __volatile__("vmreadq %[uField],%[uDst]\n\t"
|
---|
| 1059 | "movl %[rcSuccess],%[rc]\n\t"
|
---|
| 1060 | # if VMX_USE_GNU_STYLE_INLINE_SECTION_TRICK
|
---|
| 1061 | "jna 1f\n\t"
|
---|
| 1062 | ".section .text.vmread_failures, \"ax?\"\n\t"
|
---|
| 1063 | "1:\n\t"
|
---|
| 1064 | "movl %[rcInvalidVmcsPtr],%[rc]\n\t"
|
---|
| 1065 | "jnz 2f\n\t"
|
---|
| 1066 | "movl %[rcInvalidVmcsField],%[rc]\n\t"
|
---|
| 1067 | "2:\n\t"
|
---|
| 1068 | "jmp 3f\n\t"
|
---|
| 1069 | ".previous\n\t"
|
---|
| 1070 | "3:\n\t"
|
---|
| 1071 | # else
|
---|
| 1072 | "ja 1f\n\t"
|
---|
| 1073 | "movl %[rcInvalidVmcsPtr],%[rc]\n\t"
|
---|
| 1074 | "jnz 1f\n\t"
|
---|
| 1075 | "movl %[rcInvalidVmcsField],%[rc]\n\t"
|
---|
| 1076 | "1:\n\t"
|
---|
| 1077 | # endif
|
---|
| 1078 | : [uDst] "=mr" (uTmp)
|
---|
| 1079 | , [rc] "=r" (rc)
|
---|
| 1080 | : [uField] "r" ((uint64_t)uFieldEnc)
|
---|
| 1081 | , [rcSuccess] "i" (VINF_SUCCESS)
|
---|
| 1082 | , [rcInvalidVmcsPtr] "i" (VERR_VMX_INVALID_VMCS_PTR)
|
---|
| 1083 | , [rcInvalidVmcsField] "i" (VERR_VMX_INVALID_VMCS_FIELD)
|
---|
| 1084 | );
|
---|
| 1085 | *pData = uTmp;
|
---|
| 1086 | return rc;
|
---|
| 1087 | # else
|
---|
| 1088 | int fSuccess, fFieldError;
|
---|
| 1089 | __asm__ __volatile__("vmread %[uField],%[uDst]"
|
---|
| 1090 | : [uDst] "=mr" (uTmp)
|
---|
| 1091 | , "=@cca" (fSuccess)
|
---|
| 1092 | , "=@ccnc" (fFieldError)
|
---|
| 1093 | : [uField] "r" ((RTCCUINTREG)uFieldEnc));
|
---|
| 1094 | *pData = uTmp;
|
---|
| 1095 | return RT_LIKELY(fSuccess) ? VINF_SUCCESS : fFieldError ? VERR_VMX_INVALID_VMCS_FIELD : VERR_VMX_INVALID_VMCS_PTR;
|
---|
| 1096 | # endif
|
---|
| 1097 |
|
---|
[80112] | 1098 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
[80124] | 1099 | # ifdef VBOX_WITH_VMREAD_VMWRITE_NOCHECK
|
---|
[80121] | 1100 | __asm__ __volatile__ (
|
---|
| 1101 | ".byte 0x0f, 0x78, 0xc2 # VMREAD eax, edx \n\t"
|
---|
| 1102 | :"=d"(*pData)
|
---|
| 1103 | :"a"(uFieldEnc),
|
---|
| 1104 | "d"(0)
|
---|
| 1105 | );
|
---|
| 1106 | return VINF_SUCCESS;
|
---|
| 1107 | # else
|
---|
[80112] | 1108 | int rc;
|
---|
| 1109 | __asm__ __volatile__ (
|
---|
| 1110 | "movl $" RT_XSTR(VINF_SUCCESS)", %0 \n\t"
|
---|
| 1111 | ".byte 0x0f, 0x78, 0xc2 # VMREAD eax, edx \n\t"
|
---|
| 1112 | "ja 2f \n\t"
|
---|
| 1113 | "je 1f \n\t"
|
---|
| 1114 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_PTR)", %0 \n\t"
|
---|
| 1115 | "jmp 2f \n\t"
|
---|
| 1116 | "1: \n\t"
|
---|
| 1117 | "movl $" RT_XSTR(VERR_VMX_INVALID_VMCS_FIELD)", %0 \n\t"
|
---|
| 1118 | "2: \n\t"
|
---|
| 1119 | :"=&r"(rc),
|
---|
| 1120 | "=d"(*pData)
|
---|
| 1121 | :"a"(uFieldEnc),
|
---|
| 1122 | "d"(0)
|
---|
| 1123 | );
|
---|
| 1124 | return rc;
|
---|
[80121] | 1125 | # endif
|
---|
[97052] | 1126 |
|
---|
[80112] | 1127 | # else
|
---|
| 1128 | # error "Shouldn't be here..."
|
---|
| 1129 | # endif
|
---|
| 1130 | }
|
---|
| 1131 | #endif
|
---|
| 1132 |
|
---|
| 1133 |
|
---|
[80084] | 1134 | /**
|
---|
[80110] | 1135 | * Executes VMREAD for a 16-bit field.
|
---|
[80084] | 1136 | *
|
---|
| 1137 | * @returns VBox status code.
|
---|
| 1138 | * @retval VINF_SUCCESS.
|
---|
| 1139 | * @retval VERR_VMX_INVALID_VMCS_PTR.
|
---|
| 1140 | * @retval VERR_VMX_INVALID_VMCS_FIELD.
|
---|
| 1141 | *
|
---|
| 1142 | * @param uVmcsField The VMCS field.
|
---|
| 1143 | * @param pData Where to store VMCS field value.
|
---|
| 1144 | *
|
---|
| 1145 | * @remarks The values of the two status codes can be OR'ed together, the result
|
---|
| 1146 | * will be VERR_VMX_INVALID_VMCS_PTR.
|
---|
| 1147 | */
|
---|
| 1148 | DECLINLINE(int) VMXReadVmcs16(uint32_t uVmcsField, uint16_t *pData)
|
---|
| 1149 | {
|
---|
[80085] | 1150 | uint32_t u32Tmp;
|
---|
[80092] | 1151 | int rc;
|
---|
[80093] | 1152 | AssertMsg(RT_BF_GET(uVmcsField, VMX_BF_VMCSFIELD_WIDTH) == VMX_VMCSFIELD_WIDTH_16BIT, ("%#RX32\n", uVmcsField));
|
---|
[80092] | 1153 | rc = VMXReadVmcs32(uVmcsField, &u32Tmp);
|
---|
[80085] | 1154 | *pData = (uint16_t)u32Tmp;
|
---|
[80084] | 1155 | return rc;
|
---|
| 1156 | }
|
---|
| 1157 |
|
---|
| 1158 |
|
---|
[80097] | 1159 | /**
|
---|
| 1160 | * Executes VMREAD for a natural-width VMCS field.
|
---|
| 1161 | */
|
---|
[80078] | 1162 | #ifdef RT_ARCH_AMD64
|
---|
[80097] | 1163 | # define VMXReadVmcsNw VMXReadVmcs64
|
---|
[80078] | 1164 | #else
|
---|
[80097] | 1165 | # define VMXReadVmcsNw VMXReadVmcs32
|
---|
[80078] | 1166 | #endif
|
---|
[72854] | 1167 |
|
---|
[80078] | 1168 | #endif /* RT_ARCH_AMD64 || RT_ARCH_X86 */
|
---|
[35361] | 1169 |
|
---|
| 1170 | /** @} */
|
---|
| 1171 |
|
---|
[76585] | 1172 | #endif /* !VBOX_INCLUDED_vmm_hmvmxinline_h */
|
---|
[35361] | 1173 |
|
---|