VMM/VMMR3/DBGFDisas.cpp

	DBGFDisas.cpp revision 99cd1ce586a12bf6b8c6084cbcdebe8fe3553cc2
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/* $Id$ */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/** @file
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * DBGF - Debugger Facility, Disassembler.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/*
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Copyright (C) 2006-2007 Oracle Corporation
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * available from http://www.virtualbox.org. This file is free software;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * you can redistribute it and/or modify it under the terms of the GNU
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * General Public License (GPL) as published by the Free Software
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/*******************************************************************************
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync*   Header Files                                                               *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync*******************************************************************************/
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#define LOG_GROUP LOG_GROUP_DBGF
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <VBox/vmm/dbgf.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <VBox/vmm/selm.h>
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync#include <VBox/vmm/mm.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <VBox/vmm/pgm.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <VBox/vmm/cpum.h>
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync#include "DBGFInternal.h"
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <VBox/dis.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <VBox/err.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <VBox/param.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <VBox/vmm/vm.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include "internal/pgm.h"
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <VBox/log.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <iprt/assert.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <iprt/string.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <iprt/alloca.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#include <iprt/ctype.h>
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/*******************************************************************************
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync*   Structures and Typedefs                                                    *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync*******************************************************************************/
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Structure used when disassembling and instructions in DBGF.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * This is used so the reader function can get the stuff it needs.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsynctypedef struct
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync{
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /** The core structure. */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    DISCPUSTATE     Cpu;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /** The VM handle. */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    PVM             pVM;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /** The VMCPU handle. */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    PVMCPU          pVCpu;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /** The address space for resolving symbol. */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    RTDBGAS         hAs;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /** Pointer to the first byte in the segment. */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    RTGCUINTPTR     GCPtrSegBase;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /** Pointer to the byte after the end of the segment. (might have wrapped!) */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    RTGCUINTPTR     GCPtrSegEnd;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /** The size of the segment minus 1. */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    RTGCUINTPTR     cbSegLimit;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /** The guest paging mode. */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    PGMMODE         enmMode;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /** Pointer to the current page - R3 Ptr. */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    void const     *pvPageR3;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    /** Pointer to the current page - GC Ptr. */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    RTGCPTR         pvPageGC;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    /** Pointer to the next instruction (relative to GCPtrSegBase). */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    RTGCUINTPTR     GCPtrNext;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    /** The lock information that PGMPhysReleasePageMappingLock needs. */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    PGMPAGEMAPLOCK  PageMapLock;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    /** Whether the PageMapLock is valid or not. */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    bool            fLocked;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    /** 64 bits mode or not. */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    bool            f64Bits;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync} DBGFDISASSTATE, *PDBGFDISASSTATE;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
920730ce664b646eea6da4219b93030b1ee32405vboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/*******************************************************************************
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync*   Internal Functions                                                         *
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync*******************************************************************************/
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsyncstatic FNDISREADBYTES dbgfR3DisasInstrRead;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Calls the disassembler with the proper reader functions and such for disa
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @returns VBox status code.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pVM         VM handle
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pVCpu       VMCPU handle
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pSelInfo    The selector info.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   enmMode     The guest paging mode.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   fFlags      DBGF_DISAS_FLAGS_XXX.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   GCPtr       The GC pointer (selector offset).
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pState      The disas CPU state.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsyncstatic int dbgfR3DisasInstrFirst(PVM pVM, PVMCPU pVCpu, PDBGFSELINFO pSelInfo, PGMMODE enmMode,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                                 RTGCPTR GCPtr, uint32_t fFlags, PDBGFDISASSTATE pState)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync{
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->GCPtrSegBase    = pSelInfo->GCPtrBase;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->GCPtrSegEnd     = pSelInfo->cbLimit + 1 + (RTGCUINTPTR)pSelInfo->GCPtrBase;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->cbSegLimit      = pSelInfo->cbLimit;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->enmMode         = enmMode;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->pvPageGC        = 0;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->pvPageR3        = NULL;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->hAs             = pSelInfo->fFlags & DBGFSELINFO_FLAGS_HYPER /** @todo Deal more explicitly with RC in DBGFR3Disas*. */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                            ? DBGF_AS_RC_AND_GC_GLOBAL
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                            : DBGF_AS_GLOBAL;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->pVM             = pVM;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->pVCpu           = pVCpu;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->fLocked         = false;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    pState->f64Bits         = enmMode >= PGMMODE_AMD64 && pSelInfo->u.Raw.Gen.u1Long;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    DISCPUMODE enmCpuMode;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    switch (fFlags & DBGF_DISAS_FLAGS_MODE_MASK)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        default:
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            AssertFailed();
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        case DBGF_DISAS_FLAGS_DEFAULT_MODE:
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            enmCpuMode   = pState->f64Bits
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                         ? CPUMODE_64BIT
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                         : pSelInfo->u.Raw.Gen.u1DefBig
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                         ? CPUMODE_32BIT
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                         : CPUMODE_16BIT;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            break;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        case DBGF_DISAS_FLAGS_16BIT_MODE:
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        case DBGF_DISAS_FLAGS_16BIT_REAL_MODE:
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            enmCpuMode = CPUMODE_16BIT;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            break;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        case DBGF_DISAS_FLAGS_32BIT_MODE:
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            enmCpuMode = CPUMODE_32BIT;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            break;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        case DBGF_DISAS_FLAGS_64BIT_MODE:
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            enmCpuMode = CPUMODE_64BIT;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            break;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    uint32_t cbInstr;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    int rc = DISCoreOneEx(GCPtr,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                          enmCpuMode,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                          dbgfR3DisasInstrRead,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                          &pState->Cpu,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                          &pState->Cpu,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                          &cbInstr);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (RT_SUCCESS(rc))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        pState->GCPtrNext = GCPtr + cbInstr;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        return VINF_SUCCESS;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /* cleanup */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (pState->fLocked)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        PGMPhysReleasePageMappingLock(pVM, &pState->PageMapLock);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        pState->fLocked = false;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    return rc;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync}
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#if 0
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Calls the disassembler for disassembling the next instruction.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @returns VBox status code.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pState      The disas CPU state.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsyncstatic int dbgfR3DisasInstrNext(PDBGFDISASSTATE pState)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync{
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    uint32_t cbInstr;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    int rc = DISInstr(&pState->Cpu, (void *)pState->GCPtrNext, 0, &cbInstr, NULL);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (RT_SUCCESS(rc))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        pState->GCPtrNext = GCPtr + cbInstr;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        return VINF_SUCCESS;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    return rc;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync}
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync#endif
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Done with the disassembler state, free associated resources.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pState      The disas CPU state ++.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsyncstatic void dbgfR3DisasInstrDone(PDBGFDISASSTATE pState)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync{
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (pState->fLocked)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        PGMPhysReleasePageMappingLock(pState->pVM, &pState->PageMapLock);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        pState->fLocked = false;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync}
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @callback_method_impl{FNDISREADBYTES}
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @remarks @a uSrcAddr is relative to the base address indicated by
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *          DBGFDISASSTATE::GCPtrSegBase.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsyncstatic DECLCALLBACK(int) dbgfR3DisasInstrRead(PDISCPUSTATE pDisState, uint8_t *pbDst, RTUINTPTR uSrcAddr, uint32_t cbToRead)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync{
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    PDBGFDISASSTATE pState = (PDBGFDISASSTATE)pDisState;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    Assert(cbToRead > 0);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    for (;;)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        RTGCUINTPTR GCPtr = uSrcAddr + pState->GCPtrSegBase;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        /* Need to update the page translation? */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        if (    !pState->pvPageR3
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            ||  (GCPtr >> PAGE_SHIFT) != (pState->pvPageGC >> PAGE_SHIFT))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            int rc = VINF_SUCCESS;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            /* translate the address */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            pState->pvPageGC = GCPtr & PAGE_BASE_GC_MASK;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            if (MMHyperIsInsideArea(pState->pVM, pState->pvPageGC))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                pState->pvPageR3 = MMHyperRCToR3(pState->pVM, (RTRCPTR)pState->pvPageGC);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                if (!pState->pvPageR3)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                    rc = VERR_INVALID_POINTER;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            else
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                if (pState->fLocked)
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync                    PGMPhysReleasePageMappingLock(pState->pVM, &pState->PageMapLock);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                if (pState->enmMode <= PGMMODE_PROTECTED)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                    rc = PGMPhysGCPhys2CCPtrReadOnly(pState->pVM, pState->pvPageGC, &pState->pvPageR3, &pState->PageMapLock);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                else
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync                    rc = PGMPhysGCPtr2CCPtrReadOnly(pState->pVCpu, pState->pvPageGC, &pState->pvPageR3, &pState->PageMapLock);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                pState->fLocked = RT_SUCCESS_NP(rc);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            if (RT_FAILURE(rc))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                pState->pvPageR3 = NULL;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                return rc;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync            }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        /* check the segment limit */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        if (!pState->f64Bits && uSrcAddr > pState->cbSegLimit)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            return VERR_OUT_OF_SELECTOR_BOUNDS;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        /* calc how much we can read */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        uint32_t cb = PAGE_SIZE - (GCPtr & PAGE_OFFSET_MASK);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        if (!pState->f64Bits)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            RTGCUINTPTR cbSeg = pState->GCPtrSegEnd - GCPtr;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            if (cb > cbSeg && cbSeg)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                cb = cbSeg;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        if (cb > cbToRead)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            cb = cbToRead;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        /* read and advance */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        memcpy(pbDst, (char *)pState->pvPageR3 + (GCPtr & PAGE_OFFSET_MASK), cb);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        cbToRead -= cb;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        if (!cbToRead)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            return VINF_SUCCESS;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        pbDst    += cb;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        uSrcAddr += cb;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync}
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync * @copydoc FNDISGETSYMBOL
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsyncstatic DECLCALLBACK(int) dbgfR3DisasGetSymbol(PCDISCPUSTATE pCpu, uint32_t u32Sel, RTUINTPTR uAddress, char *pszBuf, size_t cchBuf, RTINTPTR *poff, void *pvUser)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync{
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    PDBGFDISASSTATE pState   = (PDBGFDISASSTATE)pCpu;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    PCDBGFSELINFO   pSelInfo = (PCDBGFSELINFO)pvUser;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    DBGFADDRESS     Addr;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    RTDBGSYMBOL     Sym;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    RTGCINTPTR      off;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    int             rc;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (   DIS_FMT_SEL_IS_REG(u32Sel)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        ?  DIS_FMT_SEL_GET_REG(u32Sel) == DIS_SELREG_CS
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        :  pSelInfo->Sel == DIS_FMT_SEL_GET_VALUE(u32Sel))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        rc = DBGFR3AddrFromSelInfoOff(pState->pVM, &Addr, pSelInfo, uAddress);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        if (RT_SUCCESS(rc))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            rc = DBGFR3AsSymbolByAddr(pState->pVM, pState->hAs, &Addr, &off, &Sym, NULL /*phMod*/);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    else
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        rc = VERR_SYMBOL_NOT_FOUND; /** @todo implement this */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (RT_SUCCESS(rc))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        size_t cchName = strlen(Sym.szName);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        if (cchName >= cchBuf)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            cchName = cchBuf - 1;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        memcpy(pszBuf, Sym.szName, cchName);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        pszBuf[cchName] = '\0';
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        *poff = off;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync    return rc;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync}
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Disassembles the one instruction according to the specified flags and
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * address, internal worker executing on the EMT of the specified virtual CPU.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @returns VBox status code.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param       pVM             The VM handle.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param       pVCpu           The virtual CPU handle.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param       Sel             The code selector. This used to determine the 32/16 bit ness and
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *                              calculation of the actual instruction address.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param       pGCPtr          Pointer to the variable holding the code address
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *                              relative to the base of Sel.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param       fFlags          Flags controlling where to start and how to format.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *                              A combination of the DBGF_DISAS_FLAGS_* \#defines.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param       pszOutput       Output buffer.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param       cbOutput        Size of the output buffer.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param       pcbInstr        Where to return the size of the instruction.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
732da7aa8afe6d7a7afd51b07888b2ef48d22a31vboxsyncstatic DECLCALLBACK(int)
732da7aa8afe6d7a7afd51b07888b2ef48d22a31vboxsyncdbgfR3DisasInstrExOnVCpu(PVM pVM, PVMCPU pVCpu, RTSEL Sel, PRTGCPTR pGCPtr, uint32_t fFlags,
732da7aa8afe6d7a7afd51b07888b2ef48d22a31vboxsync                         char *pszOutput, uint32_t cbOutput, uint32_t *pcbInstr)
732da7aa8afe6d7a7afd51b07888b2ef48d22a31vboxsync{
732da7aa8afe6d7a7afd51b07888b2ef48d22a31vboxsync    VMCPU_ASSERT_EMT(pVCpu);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    RTGCPTR GCPtr = *pGCPtr;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /*
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     * Get the Sel and GCPtr if fFlags requests that.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    PCCPUMCTXCORE  pCtxCore   = NULL;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    PCPUMSELREGHID pHiddenSel = NULL;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync    int rc;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync    if (fFlags & (DBGF_DISAS_FLAGS_CURRENT_GUEST | DBGF_DISAS_FLAGS_CURRENT_HYPER))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        if (fFlags & DBGF_DISAS_FLAGS_CURRENT_GUEST)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            pCtxCore = CPUMGetGuestCtxCore(pVCpu);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        else
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            pCtxCore = CPUMGetHyperCtxCore(pVCpu);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        Sel        = pCtxCore->cs;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        pHiddenSel = (CPUMSELREGHID *)&pCtxCore->csHid;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        GCPtr      = pCtxCore->rip;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /*
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     * Read the selector info - assume no stale selectors and nasty stuff like that.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     * Since the selector flags in the CPUMCTX structures aren't up to date unless
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     * we recently visited REM, we'll not search for the selector there.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    DBGFSELINFO     SelInfo;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    const PGMMODE   enmMode          = PGMGetGuestMode(pVCpu);
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync    bool            fRealModeAddress = false;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (    pHiddenSel
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        &&  (   (fFlags & DBGF_DISAS_FLAGS_HID_SEL_REGS_VALID)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync             || CPUMAreHiddenSelRegsValid(pVCpu)))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        SelInfo.Sel                     = Sel;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync        SelInfo.SelGate                 = 0;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync        SelInfo.GCPtrBase               = pHiddenSel->u64Base;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        SelInfo.cbLimit                 = pHiddenSel->u32Limit;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        SelInfo.fFlags                  = PGMMODE_IS_LONG_MODE(enmMode)
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync                                        ? DBGFSELINFO_FLAGS_LONG_MODE
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync                                        : enmMode != PGMMODE_REAL && (!pCtxCore || !pCtxCore->eflags.Bits.u1VM)
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync                                        ? DBGFSELINFO_FLAGS_PROT_MODE
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync                                        : DBGFSELINFO_FLAGS_REAL_MODE;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync        SelInfo.u.Raw.au32[0]           = 0;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync        SelInfo.u.Raw.au32[1]           = 0;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync        SelInfo.u.Raw.Gen.u16LimitLow   = 0xffff;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync        SelInfo.u.Raw.Gen.u4LimitHigh   = 0xf;
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync        SelInfo.u.Raw.Gen.u1Present     = pHiddenSel->Attr.n.u1Present;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        SelInfo.u.Raw.Gen.u1Granularity = pHiddenSel->Attr.n.u1Granularity;;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        SelInfo.u.Raw.Gen.u1DefBig      = pHiddenSel->Attr.n.u1DefBig;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u1Long        = pHiddenSel->Attr.n.u1Long;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u1DescType    = pHiddenSel->Attr.n.u1DescType;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u4Type        = pHiddenSel->Attr.n.u4Type;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        fRealModeAddress                = !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    }
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    else if (Sel == DBGF_SEL_FLAT)
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    {
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.Sel                     = Sel;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.SelGate                 = 0;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.GCPtrBase               = 0;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.cbLimit                 = ~0;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.fFlags                  = PGMMODE_IS_LONG_MODE(enmMode)
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                                        ? DBGFSELINFO_FLAGS_LONG_MODE
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                                        : enmMode != PGMMODE_REAL
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                                        ? DBGFSELINFO_FLAGS_PROT_MODE
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                                        : DBGFSELINFO_FLAGS_REAL_MODE;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.au32[0]           = 0;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.au32[1]           = 0;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u16LimitLow   = 0xffff;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u4LimitHigh   = 0xf;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        if (   (fFlags & DBGF_DISAS_FLAGS_HID_SEL_REGS_VALID)
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            || CPUMAreHiddenSelRegsValid(pVCpu))
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        {   /* Assume the current CS defines the execution mode. */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            pCtxCore   = CPUMGetGuestCtxCore(pVCpu);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            pHiddenSel = (CPUMSELREGHID *)&pCtxCore->csHid;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u1Present     = pHiddenSel->Attr.n.u1Present;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u1Granularity = pHiddenSel->Attr.n.u1Granularity;;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u1DefBig      = pHiddenSel->Attr.n.u1DefBig;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u1Long        = pHiddenSel->Attr.n.u1Long;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u1DescType    = pHiddenSel->Attr.n.u1DescType;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u4Type        = pHiddenSel->Attr.n.u4Type;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        }
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        else
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        {
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u1Present     = 1;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u1Granularity = 1;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u1DefBig      = 1;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u1DescType    = 1;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            SelInfo.u.Raw.Gen.u4Type        = X86_SEL_TYPE_EO;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        }
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    }
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    else if (   !(fFlags & DBGF_DISAS_FLAGS_CURRENT_HYPER)
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync             && (   (pCtxCore && pCtxCore->eflags.Bits.u1VM)
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                 || enmMode == PGMMODE_REAL
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                 || (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_16BIT_REAL_MODE
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                )
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            )
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    {   /* V86 mode or real mode - real mode addressing */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.Sel                     = Sel;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.SelGate                 = 0;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.GCPtrBase               = Sel * 16;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.cbLimit                 = ~0;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.fFlags                  = DBGFSELINFO_FLAGS_REAL_MODE;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.au32[0]           = 0;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.au32[1]           = 0;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u16LimitLow   = 0xffff;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u4LimitHigh   = 0xf;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u1Present     = 1;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u1Granularity = 1;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u1DefBig      = 0; /* 16 bits */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u1DescType    = 1;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        SelInfo.u.Raw.Gen.u4Type        = X86_SEL_TYPE_EO;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        fRealModeAddress                = true;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    }
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    else
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    {
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        rc = SELMR3GetSelectorInfo(pVM, pVCpu, Sel, &SelInfo);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        if (RT_FAILURE(rc))
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        {
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            RTStrPrintf(pszOutput, cbOutput, "Sel=%04x -> %Rrc\n", Sel, rc);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            return rc;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        }
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    }
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    /*
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync     * Disassemble it.
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync     */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    DBGFDISASSTATE State;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    rc = dbgfR3DisasInstrFirst(pVM, pVCpu, &SelInfo, enmMode, GCPtr, fFlags, &State);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    if (RT_FAILURE(rc))
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    {
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        RTStrPrintf(pszOutput, cbOutput, "Disas -> %Rrc\n", rc);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        return rc;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    }
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    /*
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync     * Format it.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    char szBuf[512];
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    DISFormatYasmEx(&State.Cpu, szBuf, sizeof(szBuf),
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                    DIS_FMT_FLAGS_RELATIVE_BRANCH,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                    fFlags & DBGF_DISAS_FLAGS_NO_SYMBOLS ? NULL : dbgfR3DisasGetSymbol,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                    &SelInfo);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    /*
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     * Print it to the user specified buffer.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (fFlags & DBGF_DISAS_FLAGS_NO_BYTES)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        if (fFlags & DBGF_DISAS_FLAGS_NO_ADDRESS)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            RTStrPrintf(pszOutput, cbOutput, "%s", szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        else if (fRealModeAddress)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            RTStrPrintf(pszOutput, cbOutput, "%04x:%04x  %s", Sel, (unsigned)GCPtr, szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        else if (Sel == DBGF_SEL_FLAT)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            if (enmMode >= PGMMODE_AMD64)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                RTStrPrintf(pszOutput, cbOutput, "%RGv  %s", GCPtr, szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            else
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                RTStrPrintf(pszOutput, cbOutput, "%08RX32  %s", (uint32_t)GCPtr, szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        else
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            if (enmMode >= PGMMODE_AMD64)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                RTStrPrintf(pszOutput, cbOutput, "%04x:%RGv  %s", Sel, GCPtr, szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            else
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                RTStrPrintf(pszOutput, cbOutput, "%04x:%08RX32  %s", Sel, (uint32_t)GCPtr, szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    else
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        uint32_t cbBits = State.Cpu.opsize;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        uint8_t *pau8Bits = (uint8_t *)alloca(cbBits);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        rc = dbgfR3DisasInstrRead(&State.Cpu, pau8Bits, GCPtr, cbBits);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        AssertRC(rc);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        if (fFlags & DBGF_DISAS_FLAGS_NO_ADDRESS)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            RTStrPrintf(pszOutput, cbOutput, "%.*Rhxs%*s %s",
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                        cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                        szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        else if (fRealModeAddress)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            RTStrPrintf(pszOutput, cbOutput, "%04x:%04x %.*Rhxs%*s %s",
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                        Sel, (unsigned)GCPtr,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                        cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                        szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        else if (Sel == DBGF_SEL_FLAT)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        {
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            if (enmMode >= PGMMODE_AMD64)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                RTStrPrintf(pszOutput, cbOutput, "%RGv %.*Rhxs%*s %s",
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync                            GCPtr,
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                            cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                            szBuf);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            else
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                RTStrPrintf(pszOutput, cbOutput, "%08RX32 %.*Rhxs%*s %s",
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync                            (uint32_t)GCPtr,
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync                            cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                            szBuf);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        }
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync        else
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        {
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync            if (enmMode >= PGMMODE_AMD64)
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                RTStrPrintf(pszOutput, cbOutput, "%04x:%RGv %.*Rhxs%*s %s",
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                            Sel, GCPtr,
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                            cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                            szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync            else
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                RTStrPrintf(pszOutput, cbOutput, "%04x:%08RX32 %.*Rhxs%*s %s",
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                            Sel, (uint32_t)GCPtr,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                            cbBits, pau8Bits, cbBits < 8 ? (8 - cbBits) * 3 : 0, "",
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                            szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    }
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (pcbInstr)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        *pcbInstr = State.Cpu.opsize;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    dbgfR3DisasInstrDone(&State);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    return VINF_SUCCESS;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync}
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Disassembles the one instruction according to the specified flags and address.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @returns VBox status code.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pVM             VM handle.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   idCpu           The ID of virtual CPU.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   Sel             The code selector. This used to determine the 32/16 bit ness and
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *                          calculation of the actual instruction address.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   GCPtr           The code address relative to the base of Sel.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   fFlags          Flags controlling where to start and how to format.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *                          A combination of the DBGF_DISAS_FLAGS_* \#defines.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pszOutput       Output buffer.  This will always be properly
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync *                          terminated if @a cbOutput is greater than zero.
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync * @param   cbOutput        Size of the output buffer.
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync * @param   pcbInstr        Where to return the size of the instruction.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @remarks May have to switch to the EMT of the virtual CPU in order to do
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync *          address conversion.
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsyncVMMR3DECL(int) DBGFR3DisasInstrEx(PVM pVM, VMCPUID idCpu, RTSEL Sel, RTGCPTR GCPtr, uint32_t fFlags,
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                                  char *pszOutput, uint32_t cbOutput, uint32_t *pcbInstr)
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync{
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    AssertReturn(cbOutput > 0, VERR_INVALID_PARAMETER);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    *pszOutput = '\0';
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    AssertReturn(!(fFlags & ~DBGF_DISAS_FLAGS_VALID_MASK), VERR_INVALID_PARAMETER);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    AssertReturn((fFlags & DBGF_DISAS_FLAGS_MODE_MASK) <= DBGF_DISAS_FLAGS_64BIT_MODE, VERR_INVALID_PARAMETER);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    /*
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     * Optimize the common case where we're called on the EMT of idCpu since
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync     * we're using this all the time when logging.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync     */
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    int     rc;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    PVMCPU  pVCpu = VMMGetCpu(pVM);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (    pVCpu
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        &&  pVCpu->idCpu == idCpu)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        rc = dbgfR3DisasInstrExOnVCpu(pVM, pVCpu, Sel, &GCPtr, fFlags, pszOutput, cbOutput, pcbInstr);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    else
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync        rc = VMR3ReqPriorityCallWait(pVM, idCpu, (PFNRT)dbgfR3DisasInstrExOnVCpu, 8,
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync                                     pVM, VMMGetCpuById(pVM, idCpu), Sel, &GCPtr, fFlags, pszOutput, cbOutput, pcbInstr);
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync    return rc;
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync}
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync
f486cea04d3045b35f843ddd19eb2de45a9929fevboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Disassembles the current guest context instruction.
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync * All registers and data will be displayed. Addresses will be attempted resolved to symbols.
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync *
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync * @returns VBox status code.
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync * @param   pVCpu           VMCPU handle.
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync * @param   pszOutput       Output buffer.  This will always be properly
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *                          terminated if @a cbOutput is greater than zero.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   cbOutput        Size of the output buffer.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsyncVMMR3DECL(int) DBGFR3DisasInstrCurrent(PVMCPU pVCpu, char *pszOutput, uint32_t cbOutput)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync{
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    AssertReturn(cbOutput > 0, VERR_INVALID_PARAMETER);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    *pszOutput = '\0';
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    AssertReturn(pVCpu, VERR_INVALID_CONTEXT);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    return DBGFR3DisasInstrEx(pVCpu->pVMR3, pVCpu->idCpu, 0, 0,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                              DBGF_DISAS_FLAGS_CURRENT_GUEST | DBGF_DISAS_FLAGS_DEFAULT_MODE,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                              pszOutput, cbOutput, NULL);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync}
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Disassembles the current guest context instruction and writes it to the log.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * All registers and data will be displayed. Addresses will be attempted resolved to symbols.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @returns VBox status code.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pVCpu           VMCPU handle.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pszPrefix       Short prefix string to the disassembly string. (optional)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsyncVMMR3DECL(int) DBGFR3DisasInstrCurrentLogInternal(PVMCPU pVCpu, const char *pszPrefix)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync{
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    char szBuf[256];
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    szBuf[0] = '\0';
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    int rc = DBGFR3DisasInstrCurrent(pVCpu, &szBuf[0], sizeof(szBuf));
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (RT_FAILURE(rc))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        RTStrPrintf(szBuf, sizeof(szBuf), "DBGFR3DisasInstrCurrentLog failed with rc=%Rrc\n", rc);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (pszPrefix && *pszPrefix)
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        RTLogPrintf("%s-CPU%d: %s\n", pszPrefix, pVCpu->idCpu, szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    else
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        RTLogPrintf("%s\n", szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    return rc;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync}
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync/**
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Disassembles the specified guest context instruction and writes it to the log.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * Addresses will be attempted resolved to symbols.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @returns VBox status code.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pVM             VM handle.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   pVCpu           The virtual CPU handle, defaults to CPU 0 if NULL.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync * @param   Sel             The code selector. This used to determine the 32/16 bit-ness and
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync *                          calculation of the actual instruction address.
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync * @param   GCPtr           The code address relative to the base of Sel.
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync */
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsyncVMMR3DECL(int) DBGFR3DisasInstrLogInternal(PVMCPU pVCpu, RTSEL Sel, RTGCPTR GCPtr)
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync{
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync    char szBuf[256];
a98ffaaf4c29cf148cb52f094fe3c42fd4cdcc57vboxsync    int rc = DBGFR3DisasInstrEx(pVCpu->pVMR3, pVCpu->idCpu, Sel, GCPtr, DBGF_DISAS_FLAGS_DEFAULT_MODE,
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync                                &szBuf[0], sizeof(szBuf), NULL);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    if (RT_FAILURE(rc))
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync        RTStrPrintf(szBuf, sizeof(szBuf), "DBGFR3DisasInstrLog(, %RTsel, %RGv) failed with rc=%Rrc\n", Sel, GCPtr, rc);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    RTLogPrintf("%s\n", szBuf);
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync    return rc;
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync}
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync
e2a4ff87ea2e2e95350793b5fccb143c1819fadcvboxsync