VMM/VMMR3/DBGFDisas.cpp

	DBGFDisas.cpp revision 50f998bb47f333d10515d4c12ad01a4e92a0747b
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/* $Id$ */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/** @file
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * DBGF - Debugger Facility, Disassembler.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/*
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Copyright (C) 2006-2007 Oracle Corporation
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * available from http://www.virtualbox.org. This file is free software;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * you can redistribute it and/or modify it under the terms of the GNU
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * General Public License (GPL) as published by the Free Software
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/*******************************************************************************
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync*   Header Files                                                               *
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync*******************************************************************************/
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync#define LOG_GROUP LOG_GROUP_DBGF
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync#include <VBox/vmm/dbgf.h>
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync#include <VBox/vmm/selm.h>
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync#include <VBox/vmm/mm.h>
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync#include <VBox/vmm/pgm.h>
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync#include <VBox/vmm/cpum.h>
930b5f872e89407f445d4000d4e4aaecaa6a0998vboxsync#include "DBGFInternal.h"
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#include <VBox/dis.h>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#include <VBox/err.h>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#include <VBox/param.h>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#include <VBox/vmm/vm.h>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#include "internal/pgm.h"
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#include <VBox/log.h>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#include <iprt/assert.h>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#include <iprt/string.h>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#include <iprt/alloca.h>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#include <iprt/ctype.h>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/*******************************************************************************
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync*   Structures and Typedefs                                                    *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync*******************************************************************************/
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Structure used when disassembling and instructions in DBGF.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * This is used so the reader function can get the stuff it needs.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsynctypedef struct
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** The core structure. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    DISCPUSTATE     Cpu;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** The VM handle. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    PVM             pVM;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** The VMCPU handle. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    PVMCPU          pVCpu;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** The address space for resolving symbol. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    RTDBGAS         hAs;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** Pointer to the first byte in the segment. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    RTGCUINTPTR     GCPtrSegBase;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** Pointer to the byte after the end of the segment. (might have wrapped!) */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    RTGCUINTPTR     GCPtrSegEnd;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** The size of the segment minus 1. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    RTGCUINTPTR     cbSegLimit;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** The guest paging mode. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    PGMMODE         enmMode;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** Pointer to the current page - R3 Ptr. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    void const     *pvPageR3;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** Pointer to the current page - GC Ptr. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    RTGCPTR         pvPageGC;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** Pointer to the next instruction (relative to GCPtrSegBase). */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    RTGCUINTPTR     GCPtrNext;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** The lock information that PGMPhysReleasePageMappingLock needs. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    PGMPAGEMAPLOCK  PageMapLock;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** Whether the PageMapLock is valid or not. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    bool            fLocked;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /** 64 bits mode or not. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    bool            f64Bits;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync} DBGFDISASSTATE, *PDBGFDISASSTATE;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/*******************************************************************************
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync*   Internal Functions                                                         *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync*******************************************************************************/
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic DECLCALLBACK(int) dbgfR3DisasInstrRead(RTUINTPTR pSrc, uint8_t *pDest, uint32_t size, void *pvUserdata);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Calls the disassembler with the proper reader functions and such for disa
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @returns VBox status code.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pVM         VM handle
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pVCpu       VMCPU handle
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pSelInfo    The selector info.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   enmMode     The guest paging mode.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   fFlags      DBGF_DISAS_FLAGS_XXX.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   GCPtr       The GC pointer (selector offset).
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pState      The disas CPU state.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic int dbgfR3DisasInstrFirst(PVM pVM, PVMCPU pVCpu, PDBGFSELINFO pSelInfo, PGMMODE enmMode,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                 RTGCPTR GCPtr, uint32_t fFlags, PDBGFDISASSTATE pState)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->GCPtrSegBase    = pSelInfo->GCPtrBase;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->GCPtrSegEnd     = pSelInfo->cbLimit + 1 + (RTGCUINTPTR)pSelInfo->GCPtrBase;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->cbSegLimit      = pSelInfo->cbLimit;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->enmMode         = enmMode;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->pvPageGC        = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->pvPageR3        = NULL;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->hAs             = pSelInfo->fFlags & DBGFSELINFO_FLAGS_HYPER /** @todo Deal more explicitly with RC in DBGFR3Disas*. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            ? DBGF_AS_RC_AND_GC_GLOBAL
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            : DBGF_AS_GLOBAL;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->pVM             = pVM;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->pVCpu           = pVCpu;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->fLocked         = false;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    pState->f64Bits         = enmMode >= PGMMODE_AMD64 && pSelInfo->u.Raw.Gen.u1Long;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    DISCPUMODE enmCpuMode;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    switch (fFlags & DBGF_DISAS_FLAGS_MODE_MASK)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        default:
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            AssertFailed();
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        case DBGF_DISAS_FLAGS_DEFAULT_MODE:
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            enmCpuMode   = pState->f64Bits
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                         ? CPUMODE_64BIT
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                         : pSelInfo->u.Raw.Gen.u1DefBig
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                         ? CPUMODE_32BIT
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                         : CPUMODE_16BIT;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            break;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        case DBGF_DISAS_FLAGS_16BIT_MODE:
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        case DBGF_DISAS_FLAGS_16BIT_REAL_MODE:
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            enmCpuMode = CPUMODE_16BIT;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            break;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        case DBGF_DISAS_FLAGS_32BIT_MODE:
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            enmCpuMode = CPUMODE_32BIT;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            break;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        case DBGF_DISAS_FLAGS_64BIT_MODE:
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            enmCpuMode = CPUMODE_64BIT;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            break;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    uint32_t cbInstr;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    int rc = DISCoreOneEx(GCPtr,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                          enmCpuMode,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                          dbgfR3DisasInstrRead,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                          &pState->Cpu,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                          &pState->Cpu,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                          &cbInstr);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (RT_SUCCESS(rc))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        pState->GCPtrNext = GCPtr + cbInstr;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        return VINF_SUCCESS;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /* cleanup */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (pState->fLocked)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        PGMPhysReleasePageMappingLock(pVM, &pState->PageMapLock);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        pState->fLocked = false;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    return rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync}
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#if 0
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Calls the disassembler for disassembling the next instruction.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @returns VBox status code.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pState      The disas CPU state.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic int dbgfR3DisasInstrNext(PDBGFDISASSTATE pState)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    uint32_t cbInstr;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    int rc = DISInstr(&pState->Cpu, (void *)pState->GCPtrNext, 0, &cbInstr, NULL);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (RT_SUCCESS(rc))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        pState->GCPtrNext = GCPtr + cbInstr;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        return VINF_SUCCESS;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    return rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync}
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync#endif
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Done with the disassembler state, free associated resources.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pState      The disas CPU state ++.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic void dbgfR3DisasInstrDone(PDBGFDISASSTATE pState)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (pState->fLocked)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        PGMPhysReleasePageMappingLock(pState->pVM, &pState->PageMapLock);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        pState->fLocked = false;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync}
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Instruction reader.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @returns VBox status code. (Why this is a int32_t and not just an int is also beyond me.)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   PtrSrc      Address to read from.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *                      In our case this is relative to the selector pointed to by the 2nd user argument of uDisCpu.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pu8Dst      Where to store the bytes.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   cbRead      Number of bytes to read.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   uDisCpu     Pointer to the disassembler cpu state. (Why this is a VBOXHUINTPTR is beyond me...)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *                      In this context it's always pointer to the Core of a DBGFDISASSTATE.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic DECLCALLBACK(int) dbgfR3DisasInstrRead(RTUINTPTR PtrSrc, uint8_t *pu8Dst, uint32_t cbRead, void *pvDisCpu)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    PDBGFDISASSTATE pState = (PDBGFDISASSTATE)pvDisCpu;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    Assert(cbRead > 0);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    for (;;)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        RTGCUINTPTR GCPtr = PtrSrc + pState->GCPtrSegBase;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        /* Need to update the page translation? */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (    !pState->pvPageR3
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            ||  (GCPtr >> PAGE_SHIFT) != (pState->pvPageGC >> PAGE_SHIFT))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            int rc = VINF_SUCCESS;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            /* translate the address */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            pState->pvPageGC = GCPtr & PAGE_BASE_GC_MASK;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            if (MMHyperIsInsideArea(pState->pVM, pState->pvPageGC))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                pState->pvPageR3 = MMHyperRCToR3(pState->pVM, (RTRCPTR)pState->pvPageGC);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                if (!pState->pvPageR3)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                    rc = VERR_INVALID_POINTER;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                if (pState->fLocked)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                    PGMPhysReleasePageMappingLock(pState->pVM, &pState->PageMapLock);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                if (pState->enmMode <= PGMMODE_PROTECTED)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                    rc = PGMPhysGCPhys2CCPtrReadOnly(pState->pVM, pState->pvPageGC, &pState->pvPageR3, &pState->PageMapLock);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                    rc = PGMPhysGCPtr2CCPtrReadOnly(pState->pVCpu, pState->pvPageGC, &pState->pvPageR3, &pState->PageMapLock);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                pState->fLocked = RT_SUCCESS_NP(rc);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            if (RT_FAILURE(rc))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                pState->pvPageR3 = NULL;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                return rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        /* check the segment limit */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (!pState->f64Bits && PtrSrc > pState->cbSegLimit)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            return VERR_OUT_OF_SELECTOR_BOUNDS;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        /* calc how much we can read */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        uint32_t cb = PAGE_SIZE - (GCPtr & PAGE_OFFSET_MASK);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (!pState->f64Bits)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            RTGCUINTPTR cbSeg = pState->GCPtrSegEnd - GCPtr;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            if (cb > cbSeg && cbSeg)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                cb = cbSeg;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (cb > cbRead)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            cb = cbRead;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        /* read and advance */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        memcpy(pu8Dst, (char *)pState->pvPageR3 + (GCPtr & PAGE_OFFSET_MASK), cb);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        cbRead -= cb;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (!cbRead)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            return VINF_SUCCESS;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        pu8Dst += cb;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        PtrSrc += cb;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync}
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @copydoc FNDISGETSYMBOL
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic DECLCALLBACK(int) dbgfR3DisasGetSymbol(PCDISCPUSTATE pCpu, uint32_t u32Sel, RTUINTPTR uAddress, char *pszBuf, size_t cchBuf, RTINTPTR *poff, void *pvUser)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    PDBGFDISASSTATE pState   = (PDBGFDISASSTATE)pCpu;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    PCDBGFSELINFO   pSelInfo = (PCDBGFSELINFO)pvUser;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    DBGFADDRESS     Addr;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    RTDBGSYMBOL     Sym;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    RTGCINTPTR      off;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    int             rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (   DIS_FMT_SEL_IS_REG(u32Sel)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        ?  DIS_FMT_SEL_GET_REG(u32Sel) == DIS_SELREG_CS
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        :  pSelInfo->Sel == DIS_FMT_SEL_GET_VALUE(u32Sel))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        rc = DBGFR3AddrFromSelInfoOff(pState->pVM, &Addr, pSelInfo, uAddress);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (RT_SUCCESS(rc))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            rc = DBGFR3AsSymbolByAddr(pState->pVM, pState->hAs, &Addr, &off, &Sym, NULL /*phMod*/);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        rc = VERR_SYMBOL_NOT_FOUND; /** @todo implement this */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (RT_SUCCESS(rc))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        size_t cchName = strlen(Sym.szName);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (cchName >= cchBuf)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            cchName = cchBuf - 1;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        memcpy(pszBuf, Sym.szName, cchName);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        pszBuf[cchName] = '\0';
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        *poff = off;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    return rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync}
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Disassembles the one instruction according to the specified flags and
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * address, internal worker executing on the EMT of the specified virtual CPU.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @returns VBox status code.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param       pVM             The VM handle.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param       pVCpu           The virtual CPU handle.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param       Sel             The code selector. This used to determine the 32/16 bit ness and
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *                              calculation of the actual instruction address.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param       pGCPtr          Pointer to the variable holding the code address
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *                              relative to the base of Sel.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param       fFlags          Flags controlling where to start and how to format.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *                              A combination of the DBGF_DISAS_FLAGS_* \#defines.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param       pszOutput       Output buffer.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param       cbOutput        Size of the output buffer.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param       pcbInstr        Where to return the size of the instruction.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncstatic DECLCALLBACK(int)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncdbgfR3DisasInstrExOnVCpu(PVM pVM, PVMCPU pVCpu, RTSEL Sel, PRTGCPTR pGCPtr, uint32_t fFlags,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                         char *pszOutput, uint32_t cbOutput, uint32_t *pcbInstr)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    VMCPU_ASSERT_EMT(pVCpu);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    RTGCPTR GCPtr = *pGCPtr;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /*
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     * Get the Sel and GCPtr if fFlags requests that.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    PCCPUMCTXCORE  pCtxCore   = NULL;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    PCPUMSELREGHID pHiddenSel = NULL;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    int rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (fFlags & (DBGF_DISAS_FLAGS_CURRENT_GUEST | DBGF_DISAS_FLAGS_CURRENT_HYPER))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (fFlags & DBGF_DISAS_FLAGS_CURRENT_GUEST)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            pCtxCore = CPUMGetGuestCtxCore(pVCpu);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            pCtxCore = CPUMGetHyperCtxCore(pVCpu);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        Sel        = pCtxCore->cs;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        pHiddenSel = (CPUMSELREGHID *)&pCtxCore->csHid;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        GCPtr      = pCtxCore->rip;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /*
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     * Read the selector info - assume no stale selectors and nasty stuff like that.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     * Since the selector flags in the CPUMCTX structures aren't up to date unless
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     * we recently visited REM, we'll not search for the selector there.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    DBGFSELINFO     SelInfo;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    const PGMMODE   enmMode          = PGMGetGuestMode(pVCpu);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    bool            fRealModeAddress = false;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (    pHiddenSel
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        &&  (   (fFlags & DBGF_DISAS_FLAGS_HID_SEL_REGS_VALID)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync             || CPUMAreHiddenSelRegsValid(pVCpu)))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.Sel                     = Sel;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.SelGate                 = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.GCPtrBase               = pHiddenSel->u64Base;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.cbLimit                 = pHiddenSel->u32Limit;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.fFlags                  = PGMMODE_IS_LONG_MODE(enmMode)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                        ? DBGFSELINFO_FLAGS_LONG_MODE
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                        : enmMode != PGMMODE_REAL && (!pCtxCore || !pCtxCore->eflags.Bits.u1VM)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                        ? DBGFSELINFO_FLAGS_PROT_MODE
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                        : DBGFSELINFO_FLAGS_REAL_MODE;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.au32[0]           = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.au32[1]           = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u16LimitLow   = 0xffff;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u4LimitHigh   = 0xf;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u1Present     = pHiddenSel->Attr.n.u1Present;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u1Granularity = pHiddenSel->Attr.n.u1Granularity;;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u1DefBig      = pHiddenSel->Attr.n.u1DefBig;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u1Long        = pHiddenSel->Attr.n.u1Long;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u1DescType    = pHiddenSel->Attr.n.u1DescType;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u4Type        = pHiddenSel->Attr.n.u4Type;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        fRealModeAddress                = !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    else if (Sel == DBGF_SEL_FLAT)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.Sel                     = Sel;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.SelGate                 = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.GCPtrBase               = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.cbLimit                 = ~0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.fFlags                  = PGMMODE_IS_LONG_MODE(enmMode)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                        ? DBGFSELINFO_FLAGS_LONG_MODE
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                        : enmMode != PGMMODE_REAL
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                        ? DBGFSELINFO_FLAGS_PROT_MODE
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                        : DBGFSELINFO_FLAGS_REAL_MODE;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.au32[0]           = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.au32[1]           = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u16LimitLow   = 0xffff;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u4LimitHigh   = 0xf;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (   (fFlags & DBGF_DISAS_FLAGS_HID_SEL_REGS_VALID)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            || CPUMAreHiddenSelRegsValid(pVCpu))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        {   /* Assume the current CS defines the execution mode. */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            pCtxCore   = CPUMGetGuestCtxCore(pVCpu);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            pHiddenSel = (CPUMSELREGHID *)&pCtxCore->csHid;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u1Present     = pHiddenSel->Attr.n.u1Present;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u1Granularity = pHiddenSel->Attr.n.u1Granularity;;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u1DefBig      = pHiddenSel->Attr.n.u1DefBig;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u1Long        = pHiddenSel->Attr.n.u1Long;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u1DescType    = pHiddenSel->Attr.n.u1DescType;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u4Type        = pHiddenSel->Attr.n.u4Type;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u1Present     = 1;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u1Granularity = 1;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u1DefBig      = 1;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u1DescType    = 1;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            SelInfo.u.Raw.Gen.u4Type        = X86_SEL_TYPE_EO;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    else if (   !(fFlags & DBGF_DISAS_FLAGS_CURRENT_HYPER)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync             && (   (pCtxCore && pCtxCore->eflags.Bits.u1VM)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                 || enmMode == PGMMODE_REAL
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                 || (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_16BIT_REAL_MODE
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                )
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            )
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {   /* V86 mode or real mode - real mode addressing */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.Sel                     = Sel;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.SelGate                 = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.GCPtrBase               = Sel * 16;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.cbLimit                 = ~0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.fFlags                  = DBGFSELINFO_FLAGS_REAL_MODE;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.au32[0]           = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.au32[1]           = 0;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u16LimitLow   = 0xffff;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u4LimitHigh   = 0xf;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u1Present     = 1;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u1Granularity = 1;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u1DefBig      = 0; /* 16 bits */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u1DescType    = 1;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        SelInfo.u.Raw.Gen.u4Type        = X86_SEL_TYPE_EO;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        fRealModeAddress                = true;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        rc = SELMR3GetSelectorInfo(pVM, pVCpu, Sel, &SelInfo);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (RT_FAILURE(rc))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            RTStrPrintf(pszOutput, cbOutput, "Sel=%04x -> %Rrc\n", Sel, rc);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            return rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /*
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     * Disassemble it.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    DBGFDISASSTATE State;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    rc = dbgfR3DisasInstrFirst(pVM, pVCpu, &SelInfo, enmMode, GCPtr, fFlags, &State);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (RT_FAILURE(rc))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        RTStrPrintf(pszOutput, cbOutput, "Disas -> %Rrc\n", rc);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        return rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /*
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     * Format it.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    char szBuf[512];
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    DISFormatYasmEx(&State.Cpu, szBuf, sizeof(szBuf),
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                    DIS_FMT_FLAGS_RELATIVE_BRANCH,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                    fFlags & DBGF_DISAS_FLAGS_NO_SYMBOLS ? NULL : dbgfR3DisasGetSymbol,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                    &SelInfo);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /*
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     * Print it to the user specified buffer.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (fFlags & DBGF_DISAS_FLAGS_NO_BYTES)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (fFlags & DBGF_DISAS_FLAGS_NO_ADDRESS)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            RTStrPrintf(pszOutput, cbOutput, "%s", szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        else if (fRealModeAddress)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            RTStrPrintf(pszOutput, cbOutput, "%04x:%04x  %s", Sel, (unsigned)GCPtr, szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        else if (Sel == DBGF_SEL_FLAT)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            if (enmMode >= PGMMODE_AMD64)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                RTStrPrintf(pszOutput, cbOutput, "%RGv  %s", GCPtr, szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                RTStrPrintf(pszOutput, cbOutput, "%08RX32  %s", (uint32_t)GCPtr, szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            if (enmMode >= PGMMODE_AMD64)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                RTStrPrintf(pszOutput, cbOutput, "%04x:%RGv  %s", Sel, GCPtr, szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                RTStrPrintf(pszOutput, cbOutput, "%04x:%08RX32  %s", Sel, (uint32_t)GCPtr, szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        uint32_t cbBits = State.Cpu.opsize;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        uint8_t *pau8Bits = (uint8_t *)alloca(cbBits);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        rc = dbgfR3DisasInstrRead(GCPtr, pau8Bits, cbBits, &State);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        AssertRC(rc);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        if (fFlags & DBGF_DISAS_FLAGS_NO_ADDRESS)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            RTStrPrintf(pszOutput, cbOutput, "%.*Rhxs%*s %s",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                        cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                        szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        else if (fRealModeAddress)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            RTStrPrintf(pszOutput, cbOutput, "%04x:%04x %.*Rhxs%*s %s",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                        Sel, (unsigned)GCPtr,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                        cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                        szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        else if (Sel == DBGF_SEL_FLAT)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            if (enmMode >= PGMMODE_AMD64)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                RTStrPrintf(pszOutput, cbOutput, "%RGv %.*Rhxs%*s %s",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            GCPtr,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                RTStrPrintf(pszOutput, cbOutput, "%08RX32 %.*Rhxs%*s %s",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            (uint32_t)GCPtr,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        {
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            if (enmMode >= PGMMODE_AMD64)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                RTStrPrintf(pszOutput, cbOutput, "%04x:%RGv %.*Rhxs%*s %s",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            Sel, GCPtr,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync            else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                RTStrPrintf(pszOutput, cbOutput, "%04x:%08RX32 %.*Rhxs%*s %s",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            Sel, (uint32_t)GCPtr,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                            szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    }
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (pcbInstr)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        *pcbInstr = State.Cpu.opsize;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    dbgfR3DisasInstrDone(&State);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    return VINF_SUCCESS;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync}
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Disassembles the one instruction according to the specified flags and address.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @returns VBox status code.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pVM             VM handle.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   idCpu           The ID of virtual CPU.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   Sel             The code selector. This used to determine the 32/16 bit ness and
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *                          calculation of the actual instruction address.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   GCPtr           The code address relative to the base of Sel.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   fFlags          Flags controlling where to start and how to format.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *                          A combination of the DBGF_DISAS_FLAGS_* \#defines.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pszOutput       Output buffer.  This will always be properly
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *                          terminated if @a cbOutput is greater than zero.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   cbOutput        Size of the output buffer.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pcbInstr        Where to return the size of the instruction.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @remarks May have to switch to the EMT of the virtual CPU in order to do
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *          address conversion.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncVMMR3DECL(int) DBGFR3DisasInstrEx(PVM pVM, VMCPUID idCpu, RTSEL Sel, RTGCPTR GCPtr, uint32_t fFlags,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                  char *pszOutput, uint32_t cbOutput, uint32_t *pcbInstr)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    AssertReturn(cbOutput > 0, VERR_INVALID_PARAMETER);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    *pszOutput = '\0';
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    AssertReturn(!(fFlags & ~DBGF_DISAS_FLAGS_VALID_MASK), VERR_INVALID_PARAMETER);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    AssertReturn((fFlags & DBGF_DISAS_FLAGS_MODE_MASK) <= DBGF_DISAS_FLAGS_64BIT_MODE, VERR_INVALID_PARAMETER);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    /*
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     * Optimize the common case where we're called on the EMT of idCpu since
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     * we're using this all the time when logging.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync     */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    int     rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    PVMCPU  pVCpu = VMMGetCpu(pVM);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (    pVCpu
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        &&  pVCpu->idCpu == idCpu)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        rc = dbgfR3DisasInstrExOnVCpu(pVM, pVCpu, Sel, &GCPtr, fFlags, pszOutput, cbOutput, pcbInstr);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        rc = VMR3ReqPriorityCallWait(pVM, idCpu, (PFNRT)dbgfR3DisasInstrExOnVCpu, 8,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                     pVM, VMMGetCpuById(pVM, idCpu), Sel, &GCPtr, fFlags, pszOutput, cbOutput, pcbInstr);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    return rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync}
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Disassembles the current guest context instruction.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * All registers and data will be displayed. Addresses will be attempted resolved to symbols.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @returns VBox status code.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pVCpu           VMCPU handle.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pszOutput       Output buffer.  This will always be properly
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *                          terminated if @a cbOutput is greater than zero.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   cbOutput        Size of the output buffer.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncVMMR3DECL(int) DBGFR3DisasInstrCurrent(PVMCPU pVCpu, char *pszOutput, uint32_t cbOutput)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    AssertReturn(cbOutput > 0, VERR_INVALID_PARAMETER);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    *pszOutput = '\0';
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    AssertReturn(pVCpu, VERR_INVALID_CONTEXT);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    return DBGFR3DisasInstrEx(pVCpu->pVMR3, pVCpu->idCpu, 0, 0,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                              DBGF_DISAS_FLAGS_CURRENT_GUEST | DBGF_DISAS_FLAGS_DEFAULT_MODE,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                              pszOutput, cbOutput, NULL);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync}
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Disassembles the current guest context instruction and writes it to the log.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * All registers and data will be displayed. Addresses will be attempted resolved to symbols.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @returns VBox status code.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pVCpu           VMCPU handle.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pszPrefix       Short prefix string to the disassembly string. (optional)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncVMMR3DECL(int) DBGFR3DisasInstrCurrentLogInternal(PVMCPU pVCpu, const char *pszPrefix)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    char szBuf[256];
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    szBuf[0] = '\0';
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    int rc = DBGFR3DisasInstrCurrent(pVCpu, &szBuf[0], sizeof(szBuf));
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (RT_FAILURE(rc))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        RTStrPrintf(szBuf, sizeof(szBuf), "DBGFR3DisasInstrCurrentLog failed with rc=%Rrc\n", rc);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (pszPrefix && *pszPrefix)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        RTLogPrintf("%s-CPU%d: %s\n", pszPrefix, pVCpu->idCpu, szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    else
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        RTLogPrintf("%s\n", szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    return rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync}
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync/**
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Disassembles the specified guest context instruction and writes it to the log.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * Addresses will be attempted resolved to symbols.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @returns VBox status code.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pVM             VM handle.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   pVCpu           The virtual CPU handle, defaults to CPU 0 if NULL.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   Sel             The code selector. This used to determine the 32/16 bit-ness and
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync *                          calculation of the actual instruction address.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync * @param   GCPtr           The code address relative to the base of Sel.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync */
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsyncVMMR3DECL(int) DBGFR3DisasInstrLogInternal(PVMCPU pVCpu, RTSEL Sel, RTGCPTR GCPtr)
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync{
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    char szBuf[256];
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    int rc = DBGFR3DisasInstrEx(pVCpu->pVMR3, pVCpu->idCpu, Sel, GCPtr, DBGF_DISAS_FLAGS_DEFAULT_MODE,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync                                &szBuf[0], sizeof(szBuf), NULL);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    if (RT_FAILURE(rc))
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync        RTStrPrintf(szBuf, sizeof(szBuf), "DBGFR3DisasInstrLog(, %RTsel, %RGv) failed with rc=%Rrc\n", Sel, GCPtr, rc);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    RTLogPrintf("%s\n", szBuf);
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync    return rc;
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync}
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync