117 lines
3.5 KiB
C
117 lines
3.5 KiB
C
/** @file
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* DBGF - Debugger Facility, selector interface partly shared with SELM.
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*/
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/*
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* Copyright (C) 2006-2023 Oracle and/or its affiliates.
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*
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* This file is part of VirtualBox base platform packages, as
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* available from https://www.virtualbox.org.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, in version 3 of the
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* License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <https://www.gnu.org/licenses>.
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*
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* The contents of this file may alternatively be used under the terms
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* of the Common Development and Distribution License Version 1.0
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* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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* in the VirtualBox distribution, in which case the provisions of the
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* CDDL are applicable instead of those of the GPL.
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*
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* You may elect to license modified versions of this file under the
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* terms and conditions of either the GPL or the CDDL or both.
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*
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* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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*/
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#ifndef VBOX_INCLUDED_vmm_dbgfsel_h
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#define VBOX_INCLUDED_vmm_dbgfsel_h
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#ifndef RT_WITHOUT_PRAGMA_ONCE
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# pragma once
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#endif
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#include <VBox/types.h>
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#include <iprt/x86.h>
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/** @addtogroup grp_dbgf
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* @{ */
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/**
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* Selector information structure.
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*/
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typedef struct DBGFSELINFO
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{
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/** The base address.
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* For gate descriptors, this is the target address. */
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RTGCPTR GCPtrBase;
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/** The limit (-1).
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* For gate descriptors, this is set to zero. */
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RTGCUINTPTR cbLimit;
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/** The raw descriptor. */
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union
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{
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X86DESC Raw;
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X86DESC64 Raw64;
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} u;
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/** The selector. */
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RTSEL Sel;
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/** The target selector for a gate.
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* This is 0 if non-gate descriptor. */
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RTSEL SelGate;
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/** Flags. */
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uint32_t fFlags;
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} DBGFSELINFO;
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/** Pointer to a SELM selector information struct. */
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typedef DBGFSELINFO *PDBGFSELINFO;
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/** Pointer to a const SELM selector information struct. */
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typedef const DBGFSELINFO *PCDBGFSELINFO;
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/** @name DBGFSELINFO::fFlags
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* @{ */
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/** The CPU is in real mode. */
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#define DBGFSELINFO_FLAGS_REAL_MODE RT_BIT_32(0)
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/** The CPU is in protected mode. */
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#define DBGFSELINFO_FLAGS_PROT_MODE RT_BIT_32(1)
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/** The CPU is in long mode. */
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#define DBGFSELINFO_FLAGS_LONG_MODE RT_BIT_32(2)
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/** The selector is a hyper selector.
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* @todo remove me! */
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#define DBGFSELINFO_FLAGS_HYPER RT_BIT_32(3)
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/** The selector is a gate selector. */
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#define DBGFSELINFO_FLAGS_GATE RT_BIT_32(4)
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/** The selector is invalid. */
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#define DBGFSELINFO_FLAGS_INVALID RT_BIT_32(5)
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/** The selector not present. */
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#define DBGFSELINFO_FLAGS_NOT_PRESENT RT_BIT_32(6)
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/** @} */
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/**
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* Tests whether the selector info describes an expand-down selector or now.
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*
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* @returns true / false.
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* @param pSelInfo The selector info.
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*/
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DECLINLINE(bool) DBGFSelInfoIsExpandDown(PCDBGFSELINFO pSelInfo)
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{
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return (pSelInfo)->u.Raw.Gen.u1DescType
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&& ((pSelInfo)->u.Raw.Gen.u4Type & (X86_SEL_TYPE_DOWN | X86_SEL_TYPE_CODE)) == X86_SEL_TYPE_DOWN;
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}
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VMMR3DECL(int) DBGFR3SelInfoValidateCS(PCDBGFSELINFO pSelInfo, RTSEL SelCPL);
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/** @} */
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#endif /* !VBOX_INCLUDED_vmm_dbgfsel_h */
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