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/** @file
* DBGF - Debugger Facility, selector interface partly shared with SELM.
*/
/*
* Copyright (C) 2006-2020 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 VBOX_INCLUDED_vmm_dbgfsel_h
#define VBOX_INCLUDED_vmm_dbgfsel_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <VBox/types.h>
#include <iprt/x86.h>
/** @addtogroup grp_dbgf
* @{ */
/**
* Selector information structure.
*/
typedef struct DBGFSELINFO
{
/** The base address.
* For gate descriptors, this is the target address. */
RTGCPTR GCPtrBase;
/** The limit (-1).
* For gate descriptors, this is set to zero. */
RTGCUINTPTR cbLimit;
/** The raw descriptor. */
union
{
X86DESC Raw;
X86DESC64 Raw64;
} u;
/** The selector. */
RTSEL Sel;
/** The target selector for a gate.
* This is 0 if non-gate descriptor. */
RTSEL SelGate;
/** Flags. */
uint32_t fFlags;
} DBGFSELINFO;
/** Pointer to a SELM selector information struct. */
typedef DBGFSELINFO *PDBGFSELINFO;
/** Pointer to a const SELM selector information struct. */
typedef const DBGFSELINFO *PCDBGFSELINFO;
/** @name DBGFSELINFO::fFlags
* @{ */
/** The CPU is in real mode. */
#define DBGFSELINFO_FLAGS_REAL_MODE RT_BIT_32(0)
/** The CPU is in protected mode. */
#define DBGFSELINFO_FLAGS_PROT_MODE RT_BIT_32(1)
/** The CPU is in long mode. */
#define DBGFSELINFO_FLAGS_LONG_MODE RT_BIT_32(2)
/** The selector is a hyper selector.
* @todo remove me! */
#define DBGFSELINFO_FLAGS_HYPER RT_BIT_32(3)
/** The selector is a gate selector. */
#define DBGFSELINFO_FLAGS_GATE RT_BIT_32(4)
/** The selector is invalid. */
#define DBGFSELINFO_FLAGS_INVALID RT_BIT_32(5)
/** The selector not present. */
#define DBGFSELINFO_FLAGS_NOT_PRESENT RT_BIT_32(6)
/** @} */
/**
* Tests whether the selector info describes an expand-down selector or now.
*
* @returns true / false.
* @param pSelInfo The selector info.
*/
DECLINLINE(bool) DBGFSelInfoIsExpandDown(PCDBGFSELINFO pSelInfo)
{
return (pSelInfo)->u.Raw.Gen.u1DescType
&& ((pSelInfo)->u.Raw.Gen.u4Type & (X86_SEL_TYPE_DOWN | X86_SEL_TYPE_CODE)) == X86_SEL_TYPE_DOWN;
}
VMMR3DECL(int) DBGFR3SelInfoValidateCS(PCDBGFSELINFO pSelInfo, RTSEL SelCPL);
/** @} */
#endif /* !VBOX_INCLUDED_vmm_dbgfsel_h */
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