IOMAllMMIO.cpp revision be2589a6f7086676e45b18d204bb1064889dc586
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * IOM - Input / Output Monitor - Guest Context.
c97989161fbe75bc14cea477a5443bbf474dd3advboxsync * Copyright (C) 2006-2007 innotek GmbH
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * available from http://www.virtualbox.org. This file is free software;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * you can redistribute it and/or modify it under the terms of the GNU
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * General Public License as published by the Free Software Foundation,
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * distribution. VirtualBox OSE is distributed in the hope that it will
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * be useful, but WITHOUT ANY WARRANTY of any kind.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * If you received this file as part of a commercial VirtualBox
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * distribution, then only the terms of your commercial VirtualBox
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * license agreement apply instead of the previous paragraph.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/*******************************************************************************
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync* Header Files *
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync*******************************************************************************/
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/*******************************************************************************
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync* Internal Functions *
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync*******************************************************************************/
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic bool iomGCGetRegImmData(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam, PCPUMCTXCORE pRegFrame, uint32_t *pu32Data, unsigned *pcbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic bool iomGCSaveDataToReg(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam, PCPUMCTXCORE pRegFrame, uint32_t u32Data);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/*******************************************************************************
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync* Global Variables *
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync*******************************************************************************/
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Array for accessing 32-bit general registers in VMMREGFRAME structure
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * by register's index from disasm.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic unsigned g_aReg32Index[] =
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Macro for accessing 32-bit general purpose registers in CPUMCTXCORE structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#define ACCESS_REG32(p, idx) (*((uint32_t *)((char *)(p) + g_aReg32Index[idx])))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Array for accessing 16-bit general registers in CPUMCTXCORE structure
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * by register's index from disasm.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic unsigned g_aReg16Index[] =
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Macro for accessing 16-bit general purpose registers in CPUMCTXCORE structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#define ACCESS_REG16(p, idx) (*((uint16_t *)((char *)(p) + g_aReg16Index[idx])))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Array for accessing 8-bit general registers in CPUMCTXCORE structure
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * by register's index from disasm.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic unsigned g_aReg8Index[] =
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync RT_OFFSETOF(CPUMCTXCORE, eax) + 1, /* USE_REG_AH */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync RT_OFFSETOF(CPUMCTXCORE, ecx) + 1, /* USE_REG_CH */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync RT_OFFSETOF(CPUMCTXCORE, edx) + 1, /* USE_REG_DH */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Macro for accessing 8-bit general purpose registers in CPUMCTXCORE structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#define ACCESS_REG8(p, idx) (*((uint8_t *)((char *)(p) + g_aReg8Index[idx])))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Array for accessing segment registers in CPUMCTXCORE structure
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * by register's index from disasm.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic unsigned g_aRegSegIndex[] =
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Macro for accessing segment registers in CPUMCTXCORE structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#define ACCESS_REGSEG(p, idx) (*((uint16_t *)((char *)(p) + g_aRegSegIndex[idx])))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Array for fast recode of the operand size (1/2/4/8 bytes) to bit shift value.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic const unsigned g_aSize2Shift[] =
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync ~0, /* 0 - invalid */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync 0, /* *1 == 2^0 */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync ~0, /* 3 - invalid */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync ~0, /* 5 - invalid */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync ~0, /* 6 - invalid */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync ~0, /* 7 - invalid */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Macro for fast recode of the operand size (1/2/4/8 bytes) to bit shift value.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Wrapper which does the write and updates range statistics when such are enabled.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @warning VBOX_SUCCESS(rc=VINF_IOM_HC_MMIO_WRITE) is TRUE!
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncinline int iomGCMMIODoWrite(PVM pVM, CTXALLSUFF(PIOMMMIORANGE) pRange, RTGCPHYS GCPhysFault, const void *pvData, unsigned cbSize)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync PIOMMMIOSTATS pStats = iomMMIOGetStats(&pVM->iom.s, GCPhysFault);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc = pRange->pfnWriteCallback(pRange->pDevIns, pRange->pvUser, GCPhysFault, (void *)pvData, cbSize); /* @todo fix const!! */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return pRange->pfnWriteCallback(pRange->pDevIns, pRange->pvUser, GCPhysFault, (void *)pvData, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Wrapper which does the read and updates range statistics when such are enabled.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncinline int iomGCMMIODoRead(PVM pVM, CTXALLSUFF(PIOMMMIORANGE) pRange, RTGCPHYS GCPhysFault, void *pvData, unsigned cbSize)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync PIOMMMIOSTATS pStats = iomMMIOGetStats(&pVM->iom.s, GCPhysFault);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc = pRange->pfnReadCallback(pRange->pDevIns, pRange->pvUser, GCPhysFault, pvData, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return pRange->pfnReadCallback(pRange->pDevIns, pRange->pvUser, GCPhysFault, pvData, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Returns the contents of register or immediate data of instruction's parameter.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns true on success.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Pointer to current disassembler context.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pParam Pointer to parameter of instruction to proccess.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Pointer to CPUMCTXCORE guest structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pu32Data Where to store retrieved data.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pcbSize Where to store the size of data (1, 2, 4).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic bool iomGCGetRegImmData(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam, PCPUMCTXCORE pRegFrame, uint32_t *pu32Data, unsigned *pcbSize)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (pParam->flags & (USE_BASE | USE_INDEX | USE_SCALE | USE_DISPLACEMENT8 | USE_DISPLACEMENT16 | USE_DISPLACEMENT32))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return false;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync *pu32Data = ACCESS_REG32(pRegFrame, pParam->base.reg_gen32);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync *pu32Data = ACCESS_REG16(pRegFrame, pParam->base.reg_gen16);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync *pu32Data = ACCESS_REG8(pRegFrame, pParam->base.reg_gen8);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (pParam->flags & (USE_IMMEDIATE32|USE_IMMEDIATE32_SX8))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (pParam->flags & (USE_IMMEDIATE16|USE_IMMEDIATE16_SX8))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync *pu32Data = ACCESS_REGSEG(pRegFrame, pParam->base.reg_seg);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync } /* Else - error. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return false;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Saves data to 8/16/32 general purpose or segment register defined by
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * instruction's parameter.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns true on success.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Pointer to current disassembler context.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pParam Pointer to parameter of instruction to proccess.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Pointer to CPUMCTXCORE guest structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param u32Data 8/16/32 bit data to store.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic bool iomGCSaveDataToReg(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam, PCPUMCTXCORE pRegFrame, unsigned u32Data)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (pParam->flags & (USE_BASE | USE_INDEX | USE_SCALE | USE_DISPLACEMENT8 | USE_DISPLACEMENT16 | USE_DISPLACEMENT32 | USE_IMMEDIATE8 | USE_IMMEDIATE16 | USE_IMMEDIATE32 | USE_IMMEDIATE32_SX8 | USE_IMMEDIATE16_SX8))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return false;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync ACCESS_REG32(pRegFrame, pParam->base.reg_gen32) = u32Data;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync ACCESS_REG16(pRegFrame, pParam->base.reg_gen16) = (uint16_t)u32Data;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync ACCESS_REG8(pRegFrame, pParam->base.reg_gen8) = (uint8_t)u32Data;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync ACCESS_REGSEG(pRegFrame, pParam->base.reg_seg) = (uint16_t)u32Data;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return true;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Else - error. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return false;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Internal - statistics only.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncinline void iomGCMMIOStatLength(PVM pVM, unsigned cb)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* No way. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * MOV reg, mem (read)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * MOVZX reg, mem (read)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * MOVSX reg, mem (read)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Pointer to CPUMCTXCORE guest registers structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRange Pointer MMIO range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhysFault The GC physical address corresponding to pvFault.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic int iomGCInterpretMOVxXRead(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu, CTXALLSUFF(PIOMMMIORANGE) pRange, RTGCPHYS GCPhysFault)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * If no read handler then go to ring-3 and handle it there.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get the data size from parameter 2,
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * and call the handler function to get the data.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = DISGetParamSize(pCpu, &pCpu->param2);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsg(cbSize > 0 && cbSize <= sizeof(uint32_t), ("cbSize=%d\n", cbSize));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc = iomGCMMIODoRead(pVM, pRange, GCPhysFault, &u32Data, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Do sign extension for MOVSX.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /** @todo checkup MOVSX implementation! */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* DWORD <- BYTE */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* DWORD <- WORD */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Store the result to register (parameter 1).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync bool fRc = iomGCSaveDataToReg(pCpu, &pCpu->param1, pRegFrame, u32Data);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsg(fRc, ("Failed to store register value!\n")); NOREF(fRc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * MOV mem, reg|imm (write)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Pointer to CPUMCTXCORE guest registers structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRange Pointer MMIO range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhysFault The GC physical address corresponding to pvFault.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic int iomGCInterpretMOVxXWrite(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu, CTXALLSUFF(PIOMMMIORANGE) pRange, RTGCPHYS GCPhysFault)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * If no write handler then go to ring-3 and handle it there.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get data to write from second parameter,
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * and call the callback to write it.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = 0;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync bool fRc = iomGCGetRegImmData(pCpu, &pCpu->param2, pRegFrame, &u32Data, &cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsg(fRc, ("Failed to get reg/imm port number!\n")); NOREF(fRc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc = iomGCMMIODoWrite(pVM, pRange, GCPhysFault, &u32Data, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/** @todo All the string MMIO stuff can do terrible things since physical contiguous mappings are
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * assumed all over the place! This must be addressed in a general way, like for example let EM do
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * all the interpretation and checking of selectors and addresses.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * -> I don't see the problem here. MMIO ranges are by definition linear ranges. The virtual source or destination is read/written properly.
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsyncDECLINLINE(int) iomRamRead(PVM pVM, void *pDest, RTGCPTR GCSrc, uint32_t cb)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /** @todo optimize the loop; no need to convert the address all the time */
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsyncDECLINLINE(int) iomRamWrite(PVM pVM, RTGCPTR GCDest, void *pSrc, uint32_t cb)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return MMGCRamWriteNoTrapHandler(GCDest, pSrc, cb);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /** @todo optimize the loop; no need to convert the address all the time */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * [REP] MOVSB
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * [REP] MOVSW
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * [REP] MOVSD
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Restricted implementation.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param uErrorCode CPU Error code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Trap register frame.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhysFault The GC physical address corresponding to pvFault.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRange Pointer MMIO range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic int iomGCInterpretMOVS(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPHYS GCPhysFault, PDISCPUSTATE pCpu, CTXALLSUFF(PIOMMMIORANGE) pRange)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * We do not support segment prefixes or REPNE.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get bytes/words/dwords count to copy.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Get the current privilege level. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get data size.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = DISGetParamSize(pCpu, &pCpu->param1);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int offIncrement = pRegFrame->eflags.Bits.u1DF ? -(signed)cbSize : (signed)cbSize;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (pVM->iom.s.cMovsMaxBytes < (cTransfers << SIZE2SHIFT(cbSize)))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pVM->iom.s.cMovsMaxBytes = cTransfers << SIZE2SHIFT(cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Write operation: [Mem] -> [MMIO]
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * ds:esi (Virt Src) -> es:edi (Phys Dst)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_START(&pVM->iom.s.StatGCInstMovsToMMIO, a2);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Check callback. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_STOP(&pVM->iom.s.StatGCInstMovsToMMIO, a2);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Convert source address ds:esi. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = SELMToFlatEx(pVM, pRegFrame->eflags, pRegFrame->ds, (RTGCPTR)pRegFrame->esi, &pRegFrame->dsHid,
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Access verification first; we currently can't recover properly from traps inside this instruction */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = PGMVerifyAccess(pVM, pu8Virt, cTransfers * cbSize, (cpl == 3) ? X86_PTE_US : 0);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log(("MOVS will generate a trap -> recompiler, rc=%d\n", rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_STOP(&pVM->iom.s.StatGCInstMovsToMMIO, a2);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* copy loop. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomRamRead(pVM, &u32Data, (RTGCPTR)pu8Virt, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoWrite(pVM, pRange, Phys, &u32Data, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Update ecx. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_STOP(&pVM->iom.s.StatGCInstMovsToMMIO, a2);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Read operation: [MMIO] -> [mem] or [MMIO] -> [MMIO]
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * ds:[eSI] (Phys Src) -> es:[eDI] (Virt Dst)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Check callback. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Convert destination address. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = SELMToFlatEx(pVM, pRegFrame->eflags, pRegFrame->es, (RTGCPTR)pRegFrame->edi, &pRegFrame->esHid,
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Check if destination address is MMIO. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = PGMGstGetPage(pVM, (RTGCPTR)pu8Virt, NULL, &PhysDst);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Extra: [MMIO] -> [MMIO]
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_START(&pVM->iom.s.StatGCInstMovsMMIO, d);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_START(&pVM->iom.s.StatGCInstMovsFromMMIO, c);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync PhysDst |= (RTGCUINTPTR)pu8Virt & PAGE_OFFSET_MASK;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync CTXALLSUFF(PIOMMMIORANGE) pMMIODst = iomMMIOGetRange(&pVM->iom.s, PhysDst);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_STOP(&pVM->iom.s.StatGCInstMovsMMIO, d);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_STOP(&pVM->iom.s.StatGCInstMovsFromMMIO, c);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* copy loop. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoRead(pVM, pRange, Phys, &u32Data, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoWrite(pVM, pMMIODst, PhysDst, &u32Data, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_STOP(&pVM->iom.s.StatGCInstMovsMMIO, d);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_STOP(&pVM->iom.s.StatGCInstMovsFromMMIO, c);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Normal: [MMIO] -> [Mem]
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_START(&pVM->iom.s.StatGCInstMovsFromMMIO, c);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Access verification first; we currently can't recover properly from traps inside this instruction */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = PGMVerifyAccess(pVM, pu8Virt, cTransfers * cbSize, X86_PTE_RW | ((cpl == 3) ? X86_PTE_US : 0));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log(("MOVS will generate a trap -> recompiler, rc=%d\n", rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_STOP(&pVM->iom.s.StatGCInstMovsFromMMIO, c);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* copy loop. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoRead(pVM, pRange, Phys, &u32Data, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomRamWrite(pVM, (RTGCPTR)pu8Virt, &u32Data, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log(("iomRamWrite %08X size=%d failed with %d\n", pu8Virt, cbSize, rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_STOP(&pVM->iom.s.StatGCInstMovsFromMMIO, c);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Update ecx on exit. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* work statistics. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * [REP] STOSB
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * [REP] STOSW
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * [REP] STOSD
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Restricted implementation.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Trap register frame.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhysFault The GC physical address corresponding to pvFault.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRange Pointer MMIO range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic int iomGCInterpretSTOS(PVM pVM, PCPUMCTXCORE pRegFrame, RTGCPHYS GCPhysFault, PDISCPUSTATE pCpu, CTXALLSUFF(PIOMMMIORANGE) pRange)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * We do not support segment prefixes or REPNE..
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get bytes/words/dwords count to copy.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get data size.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = DISGetParamSize(pCpu, &pCpu->param1);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int offIncrement = pRegFrame->eflags.Bits.u1DF ? -(signed)cbSize : (signed)cbSize;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (pVM->iom.s.cStosMaxBytes < (cTransfers << SIZE2SHIFT(cbSize)))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pVM->iom.s.cStosMaxBytes = cTransfers << SIZE2SHIFT(cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Use the fill callback.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /** @todo pfnFillCallback must return number of bytes successfully written!!! */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* addr++ variant. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = pRange->pfnFillCallback(pRange->pDevIns, pRange->pvUser, Phys, u32Data, cbSize, cTransfers);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Update registers. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pRegFrame->edi += cTransfers << SIZE2SHIFT(cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* addr-- variant. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = pRange->pfnFillCallback(pRange->pDevIns, pRange->pvUser, (Phys - (cTransfers - 1)) << SIZE2SHIFT(cbSize), u32Data, cbSize, cTransfers);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Update registers. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pRegFrame->edi -= cTransfers << SIZE2SHIFT(cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Use the write callback.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Check write callback. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* fill loop. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoWrite(pVM, pRange, Phys, &u32Data, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Update ecx on exit. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Work statistics and return.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * [REP] LODSB
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * [REP] LODSW
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * [REP] LODSD
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Restricted implementation.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Trap register frame.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhysFault The GC physical address corresponding to pvFault.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRange Pointer MMIO range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic int iomGCInterpretLODS(PVM pVM, PCPUMCTXCORE pRegFrame, RTGCPHYS GCPhysFault, PDISCPUSTATE pCpu, CTXALLSUFF(PIOMMMIORANGE) pRange)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_START(&pVM->iom.s.StatGCInstLods, a1);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * We do not support segment prefixes or REP*.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (pCpu->prefix & (PREFIX_SEG | PREFIX_REP | PREFIX_REPNE))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Check that we can handle it. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get data size.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = DISGetParamSize(pCpu, &pCpu->param2);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int offIncrement = pRegFrame->eflags.Bits.u1DF ? -(signed)cbSize : (signed)cbSize;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Perform read.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc = iomGCMMIODoRead(pVM, pRange, GCPhysFault, &pRegFrame->eax, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Work statistics and return.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * CMP [MMIO], reg|imm
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * CMP reg|imm, [MMIO]
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Restricted implementation.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Trap register frame.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhysFault The GC physical address corresponding to pvFault.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRange Pointer MMIO range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic int iomGCInterpretCMP(PVM pVM, PCPUMCTXCORE pRegFrame, RTGCPHYS GCPhysFault, PDISCPUSTATE pCpu, CTXALLSUFF(PIOMMMIORANGE) pRange)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Check read callback. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get the operands.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = 0;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (iomGCGetRegImmData(pCpu, &pCpu->param1, pRegFrame, &uData1, &cbSize))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* cmp reg, [MMIO]. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoRead(pVM, pRange, GCPhysFault, &uData2, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync else if (iomGCGetRegImmData(pCpu, &pCpu->param2, pRegFrame, &uData2, &cbSize))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* cmp [MMIO], reg|imm. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoRead(pVM, pRange, GCPhysFault, &uData1, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Emulate CMP and update guest flags. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync uint32_t eflags = EMEmulateCmp(uData1, uData2, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pRegFrame->eflags.u32 = (pRegFrame->eflags.u32 & ~(X86_EFL_CF | X86_EFL_PF | X86_EFL_AF | X86_EFL_ZF | X86_EFL_SF | X86_EFL_OF))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync | (eflags & (X86_EFL_CF | X86_EFL_PF | X86_EFL_AF | X86_EFL_ZF | X86_EFL_SF | X86_EFL_OF));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * AND [MMIO], reg|imm
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * AND reg, [MMIO]
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Restricted implementation.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Trap register frame.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhysFault The GC physical address corresponding to pvFault.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRange Pointer MMIO range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic int iomGCInterpretAND(PVM pVM, PCPUMCTXCORE pRegFrame, RTGCPHYS GCPhysFault, PDISCPUSTATE pCpu, CTXALLSUFF(PIOMMMIORANGE) pRange)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Check read callback. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = 0;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (iomGCGetRegImmData(pCpu, &pCpu->param1, pRegFrame, &uData1, &cbSize))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* and reg, [MMIO]. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoRead(pVM, pRange, GCPhysFault, &uData2, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync else if (iomGCGetRegImmData(pCpu, &pCpu->param2, pRegFrame, &uData2, &cbSize))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* and [MMIO], reg|imm. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (pRange->pfnReadCallback && pRange->pfnWriteCallback)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoRead(pVM, pRange, GCPhysFault, &uData1, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Emulate AND and update guest flags. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync uint32_t eflags = EMEmulateAnd(&uData1, uData2, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Store result to MMIO. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoWrite(pVM, pRange, GCPhysFault, &uData1, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Store result to register. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync bool fRc = iomGCSaveDataToReg(pCpu, &pCpu->param1, pRegFrame, uData1);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsg(fRc, ("Failed to store register value!\n")); NOREF(fRc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Update guest's eflags and finish. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pRegFrame->eflags.u32 = (pRegFrame->eflags.u32 & ~(X86_EFL_CF | X86_EFL_PF | X86_EFL_AF | X86_EFL_ZF | X86_EFL_SF | X86_EFL_OF))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync | (eflags & (X86_EFL_CF | X86_EFL_PF | X86_EFL_AF | X86_EFL_ZF | X86_EFL_SF | X86_EFL_OF));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * TEST [MMIO], reg|imm
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * TEST reg, [MMIO]
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Restricted implementation.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Trap register frame.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhysFault The GC physical address corresponding to pvFault.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRange Pointer MMIO range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic int iomGCInterpretTEST(PVM pVM, PCPUMCTXCORE pRegFrame, RTGCPHYS GCPhysFault, PDISCPUSTATE pCpu, CTXALLSUFF(PIOMMMIORANGE) pRange)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_START(&pVM->iom.s.StatGCInstTest, a1);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Check read callback. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = 0;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (iomGCGetRegImmData(pCpu, &pCpu->param1, pRegFrame, &uData1, &cbSize))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* and test, [MMIO]. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoRead(pVM, pRange, GCPhysFault, &uData2, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync else if (iomGCGetRegImmData(pCpu, &pCpu->param2, pRegFrame, &uData2, &cbSize))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* test [MMIO], reg|imm. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoRead(pVM, pRange, GCPhysFault, &uData1, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Emulate TEST (=AND without write back) and update guest EFLAGS. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync uint32_t eflags = EMEmulateAnd(&uData1, uData2, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pRegFrame->eflags.u32 = (pRegFrame->eflags.u32 & ~(X86_EFL_CF | X86_EFL_PF | X86_EFL_AF | X86_EFL_ZF | X86_EFL_SF | X86_EFL_OF))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync | (eflags & (X86_EFL_CF | X86_EFL_PF | X86_EFL_AF | X86_EFL_ZF | X86_EFL_SF | X86_EFL_OF));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * XCHG [MMIO], reg
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * XCHG reg, [MMIO]
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Restricted implementation.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Trap register frame.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhysFault The GC physical address corresponding to pvFault.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRange Pointer MMIO range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncstatic int iomGCInterpretXCHG(PVM pVM, PCPUMCTXCORE pRegFrame, RTGCPHYS GCPhysFault, PDISCPUSTATE pCpu, CTXALLSUFF(PIOMMMIORANGE) pRange)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_START(&pVM->iom.s.StatGCInstTest, a1);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Check read callback. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = 0;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (!pRange->pfnReadCallback || !pRange->pfnWriteCallback)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (iomGCGetRegImmData(pCpu, &pCpu->param1, pRegFrame, &uData1, &cbSize))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* xchg reg, [MMIO]. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoRead(pVM, pRange, GCPhysFault, &uData2, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Store result to MMIO. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoWrite(pVM, pRange, GCPhysFault, &uData1, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Store result to register. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync bool fRc = iomGCSaveDataToReg(pCpu, &pCpu->param1, pRegFrame, uData2);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsg(fRc, ("Failed to store register value!\n")); NOREF(fRc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Assert(rc == VINF_IOM_HC_MMIO_WRITE || rc == VINF_PATM_HC_MMIO_PATCH_WRITE);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Assert(rc == VINF_IOM_HC_MMIO_READ || rc == VINF_PATM_HC_MMIO_PATCH_READ);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (iomGCGetRegImmData(pCpu, &pCpu->param2, pRegFrame, &uData2, &cbSize))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* xchg [MMIO], reg. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoRead(pVM, pRange, GCPhysFault, &uData1, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Store result to MMIO. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCMMIODoWrite(pVM, pRange, GCPhysFault, &uData2, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Store result to register. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync bool fRc = iomGCSaveDataToReg(pCpu, &pCpu->param2, pRegFrame, uData1);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsg(fRc, ("Failed to store register value!\n")); NOREF(fRc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Assert(rc == VINF_IOM_HC_MMIO_WRITE || rc == VINF_PATM_HC_MMIO_PATCH_WRITE);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Assert(rc == VINF_IOM_HC_MMIO_READ || rc == VINF_PATM_HC_MMIO_PATCH_READ);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Read callback for disassembly function; supports reading bytes that cross a page boundary
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pSrc GC source pointer
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pDest HC destination pointer
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param size Number of bytes to read
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param dwUserdata Callback specific user data (pCpu)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncDECLCALLBACK(int32_t) iomReadBytes(RTHCUINTPTR pSrc, uint8_t *pDest, uint32_t size, RTHCUINTPTR dwUserdata)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncinline bool iomDisCoreOne(PVM pVM, DISCPUSTATE *pCpu, RTGCUINTPTR InstrGC, uint32_t *pOpsize)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return VBOX_SUCCESS(DISCoreOneEx(InstrGC, pCpu->mode, iomReadBytes, pVM, pCpu, pOpsize));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncinline bool iomDisCoreOne(PVM pVM, DISCPUSTATE *pCpu, RTGCUINTPTR InstrGC, uint32_t *pOpsize)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * \#PF Handler callback for MMIO ranges.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Note: we are on ring0 in Hypervisor and interrupts are disabled.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code (appropriate for GC return).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM VM Handle.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param uErrorCode CPU Error code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Trap register frame.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pvFault The fault address (cr2).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhysFault The GC physical address corresponding to pvFault.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pvUser Pointer to the MMIO ring-3 range entry.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncIOMDECL(int) IOMMMIOHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, void *pvFault, RTGCPHYS GCPhysFault, void *pvUser)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_START(&pVM->iom.s.StatGCMMIOHandler, a);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync NOREF(pvUser); /** @todo implement pvUser usage! */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log3(("IOMMMIOHandler: GCPhys=%RGp uErr=%#x pvFault=%p eip=%RGv\n",
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync GCPhysFault, uErrorCode, pvFault, pRegFrame->eip));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Find the corresponding MMIO range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync CTXALLSUFF(PIOMMMIORANGE) pRange = iomMMIOGetRange(&pVM->iom.s, GCPhysFault);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync PIOMMMIOSTATS pStats = iomMMIOGetStats(&pVM->iom.s, GCPhysFault);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync PIOMMMIORANGER3 pRangeR3 = iomMMIOGetRangeHC(&pVM->iom.s, GCPhysFault);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_START(&pVM->iom.s.StatGCMMIOHandler, a);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return (uErrorCode & X86_TRAP_PF_RW) ? VINF_IOM_HC_MMIO_WRITE : VINF_IOM_HC_MMIO_READ;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Now, why are we here...
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsgFailed(("Internal error! GCPhysFault=%x\n", GCPhysFault));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Convert CS:EIP to linear address and initialize the disassembler.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync cpu.mode = SELMIsSelector32Bit(pVM, pRegFrame->eflags, pRegFrame->cs, &pRegFrame->csHid) ? CPUMODE_32BIT : CPUMODE_16BIT;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc = SELMValidateAndConvertCSAddr(pVM, pRegFrame->eflags, pRegFrame->ss, pRegFrame->cs, &pRegFrame->csHid, (RTGCPTR)(cpu.mode == CPUMODE_32BIT ? pRegFrame->eip : pRegFrame->eip & 0xffff), &pvCode);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsgFailed(("Internal error! cs:eip=%04x:%08x rc=%Vrc\n", pRegFrame->cs, pRegFrame->eip, rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Disassemble the instruction and interprete it.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (iomDisCoreOne(pVM, &cpu, (RTGCUINTPTR)pvCode, &cbOp))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCInterpretMOVxXWrite(pVM, pRegFrame, &cpu, pRange, GCPhysFault);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCInterpretMOVxXRead(pVM, pRegFrame, &cpu, pRange, GCPhysFault);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCInterpretMOVS(pVM, uErrorCode, pRegFrame, GCPhysFault, &cpu, pRange);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCInterpretSTOS(pVM, pRegFrame, GCPhysFault, &cpu, pRange);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCInterpretLODS(pVM, pRegFrame, GCPhysFault, &cpu, pRange);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCInterpretCMP(pVM, pRegFrame, GCPhysFault, &cpu, pRange);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCInterpretAND(pVM, pRegFrame, GCPhysFault, &cpu, pRange);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCInterpretTEST(pVM, pRegFrame, GCPhysFault, &cpu, pRange);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomGCInterpretXCHG(pVM, pRegFrame, GCPhysFault, &cpu, pRange);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * The instruction isn't supported. Hand it on to ring-3.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = (uErrorCode & X86_TRAP_PF_RW) ? VINF_IOM_HC_MMIO_WRITE : VINF_IOM_HC_MMIO_READ;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * On success advance EIP.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync PIOMMMIOSTATS pStats = iomMMIOGetStats(&pVM->iom.s, GCPhysFault);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_STOP(&pVM->iom.s.StatGCMMIOHandler, a);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Reads a MMIO register.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM VM handle.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhys The physical address to read.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pu32Value Where to store the value read.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param cbValue The size of the register to read in bytes. 1, 2 or 4 bytes.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncIOMDECL(int) IOMMMIORead(PVM pVM, RTGCPHYS GCPhys, uint32_t *pu32Value, size_t cbValue)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/** @todo add return to ring-3 statistics when this function is used in GC! */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Lookup the current context range node and statistics.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync CTXALLSUFF(PIOMMMIORANGE) pRange = iomMMIOGetRange(&pVM->iom.s, GCPhys);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync PIOMMMIOSTATS pStats = iomMMIOGetStats(&pVM->iom.s, GCPhys);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (!pStats && (!pRange || pRange->cbSize <= PAGE_SIZE))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pStats = iomR3MMIOStatsCreate(pVM, GCPhys, pRange ? pRange->pszDesc : NULL);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#endif /* VBOX_WITH_STATISTICS */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#else /* !IN_RING3 */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#endif /* !IN_RING3 */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Perform the read and deal with the result.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_ADV_START(&pStats->CTXALLSUFF(ProfRead), a);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc = pRange->pfnReadCallback(pRange->pDevIns, pRange->pvUser, GCPhys, pu32Value, cbValue);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_ADV_STOP(&pStats->CTXALLSUFF(ProfRead), a);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log4(("IOMMMIORead: GCPhys=%RGp *pu32=%08RX32 cb=%d rc=%Vrc\n", GCPhys, *pu32Value, cbValue, rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync case 4: *(uint32_t *)pu32Value = 0x00000000; break;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync default: AssertReleaseMsgFailed(("cbValue=%d GCPhys=%VGp\n", cbValue, GCPhys)); break;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log4(("IOMMMIORead: GCPhys=%RGp *pu32=%08RX32 cb=%d rc=%Vrc\n", GCPhys, *pu32Value, cbValue, rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync case 4: *(uint32_t *)pu32Value = 0xffffffff; break;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync default: AssertReleaseMsgFailed(("cbValue=%d GCPhys=%VGp\n", cbValue, GCPhys)); break;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log4(("IOMMMIORead: GCPhys=%RGp *pu32=%08RX32 cb=%d rc=%Vrc\n", GCPhys, *pu32Value, cbValue, rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Lookup the ring-3 range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync PIOMMMIORANGER3 pRangeR3 = iomMMIOGetRangeHC(&pVM->iom.s, GCPhys);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log4(("IOMMMIORead: GCPhys=%RGp *pu32=%08RX32 cb=%d rc=VINF_SUCCESS\n", GCPhys, *pu32Value, cbValue));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsgFailed(("Handlers and page tables are out of sync or something! GCPhys=%VGp cbValue=%d\n", GCPhys, cbValue));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Writes to a MMIO register.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM VM handle.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param GCPhys The physical address to write to.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param u32Value The value to write.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param cbValue The size of the register to read in bytes. 1, 2 or 4 bytes.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncIOMDECL(int) IOMMMIOWrite(PVM pVM, RTGCPHYS GCPhys, uint32_t u32Value, size_t cbValue)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/** @todo add return to ring-3 statistics when this function is used in GC! */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Lookup the current context range node.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync CTXALLSUFF(PIOMMMIORANGE) pRange = iomMMIOGetRange(&pVM->iom.s, GCPhys);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync PIOMMMIOSTATS pStats = iomMMIOGetStats(&pVM->iom.s, GCPhys);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync if (!pStats && (!pRange || pRange->cbSize <= PAGE_SIZE))
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pStats = iomR3MMIOStatsCreate(pVM, GCPhys, pRange ? pRange->pszDesc : NULL);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#endif /* VBOX_WITH_STATISTICS */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Perform the write if we found a range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#else /* !IN_RING3 */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#endif /* !IN_RING3 */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_ADV_START(&pStats->CTXALLSUFF(ProfWrite), a);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc = pRange->pfnWriteCallback(pRange->pDevIns, pRange->pvUser, GCPhys, &u32Value, cbValue);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync STAM_PROFILE_ADV_STOP(&pStats->CTXALLSUFF(ProfWrite), a);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log4(("IOMMMIOWrite: GCPhys=%RGp u32=%08RX32 cb=%d rc=%Vrc\n", GCPhys, u32Value, cbValue, rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Lookup the ring-3 range.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync PIOMMMIORANGER3 pRangeR3 = iomMMIOGetRangeHC(&pVM->iom.s, GCPhys);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log4(("IOMMMIOWrite: GCPhys=%RGp u32=%08RX32 cb=%d rc=%Vrc\n", GCPhys, u32Value, cbValue));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsgFailed(("Handlers and page tables are out of sync or something! GCPhys=%VGp cbValue=%d\n", GCPhys, cbValue));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * ES:EDI,DX[,ECX]
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @remark Assumes caller checked the access privileges (IOMInterpretCheckPortIOAccess)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @returns Strict VBox status code. Informational status codes other than the one documented
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_SUCCESS Success.
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * status code must be passed on to EM.
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_IOM_HC_IOPORT_READ Defer the read to ring-3. (R0/GC only)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_EM_RAW_GUEST_TRAP The exception was left pending. (TRPMRaiseXcptErr)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_TRPM_XCPT_DISPATCHED The exception was raised and dispatched for raw-mode execution. (TRPMRaiseXcptErr)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_EM_RESCHEDULE_REM The exception was dispatched and cannot be executed in raw-mode. (TRPMRaiseXcptErr)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Pointer to CPUMCTXCORE guest registers structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param uPort IO Port
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param uPrefix IO instruction prefix
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param cbTransfer Size of transfer unit
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncIOMDECL(int) IOMInterpretINSEx(PVM pVM, PCPUMCTXCORE pRegFrame, uint32_t uPort, uint32_t uPrefix, uint32_t cbTransfer)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * We do not support REPNE or decrementing destination
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * pointer. Segment prefixes are deliberately ignored, as per the instruction specification.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get bytes/words/dwords count to transfer.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Convert destination address es:edi. */
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync int rc = SELMToFlatEx(pVM, pRegFrame->eflags, pRegFrame->es, (RTGCPTR)pRegFrame->edi, &pRegFrame->esHid,
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log(("INS destination address conversion failed -> fallback, rc=%d\n", rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Access verification first; we can't recover from traps inside this instruction, as the port read cannot be repeated. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = PGMVerifyAccess(pVM, (RTGCUINTPTR)GCPtrDst, cTransfers * cbTransfer,
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log(("INS will generate a trap -> fallback, rc=%d\n", rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log(("IOM: rep ins%d port %#x count %d\n", cbTransfer * 8, uPort, cTransfers));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* If the device supports string transfers, ask it to do as
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * much as it wants. The rest is done with single-word transfers. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = IOMIOPortReadString(pVM, uPort, &GCPtrDst, &cTransfers, cbTransfer);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pRegFrame->edi += (cTransfersOrg - cTransfers) * cbTransfer;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = IOMIOPortRead(pVM, uPort, &u32Value, cbTransfer);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc2 = iomRamWrite(pVM, GCPtrDst, &u32Value, cbTransfer);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync GCPtrDst = (RTGCPTR)((RTGCUINTPTR)GCPtrDst + cbTransfer);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Update ecx on exit. */
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync AssertMsg(rc == VINF_SUCCESS || rc == VINF_IOM_HC_IOPORT_READ || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST) || VBOX_FAILURE(rc), ("%Vrc\n", rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * ES:EDI,DX[,ECX]
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @returns Strict VBox status code. Informational status codes other than the one documented
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_SUCCESS Success.
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * status code must be passed on to EM.
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_IOM_HC_IOPORT_READ Defer the read to ring-3. (R0/GC only)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_EM_RAW_GUEST_TRAP The exception was left pending. (TRPMRaiseXcptErr)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_TRPM_XCPT_DISPATCHED The exception was raised and dispatched for raw-mode execution. (TRPMRaiseXcptErr)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_EM_RESCHEDULE_REM The exception was dispatched and cannot be executed in raw-mode. (TRPMRaiseXcptErr)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Pointer to CPUMCTXCORE guest registers structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncIOMDECL(int) IOMInterpretINS(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get port number directly from the register (no need to bother the
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * disassembler). And get the I/O register size from the opcode / prefix.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = 0;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc = IOMInterpretCheckPortIOAccess(pVM, pRegFrame, uPort, cbSize);
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync AssertMsg(rc == VINF_EM_RAW_GUEST_TRAP || rc == VINF_TRPM_XCPT_DISPATCHED || rc == VINF_TRPM_XCPT_DISPATCHED || VBOX_FAILURE(rc), ("%Vrc\n", rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync return IOMInterpretINSEx(pVM, pRegFrame, uPort, pCpu->prefix, cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * DS:ESI,DX[,ECX]
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @remark Assumes caller checked the access privileges (IOMInterpretCheckPortIOAccess)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @returns Strict VBox status code. Informational status codes other than the one documented
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_SUCCESS Success.
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * status code must be passed on to EM.
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_IOM_HC_IOPORT_WRITE Defer the write to ring-3. (R0/GC only)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_EM_RAW_GUEST_TRAP The exception was left pending. (TRPMRaiseXcptErr)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_TRPM_XCPT_DISPATCHED The exception was raised and dispatched for raw-mode execution. (TRPMRaiseXcptErr)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_EM_RESCHEDULE_REM The exception was dispatched and cannot be executed in raw-mode. (TRPMRaiseXcptErr)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Pointer to CPUMCTXCORE guest registers structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param uPort IO Port
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param uPrefix IO instruction prefix
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param cbTransfer Size of transfer unit
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncIOMDECL(int) IOMInterpretOUTSEx(PVM pVM, PCPUMCTXCORE pRegFrame, uint32_t uPort, uint32_t uPrefix, uint32_t cbTransfer)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * We do not support segment prefixes, REPNE or
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * decrementing source pointer.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get bytes/words/dwords count to transfer.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Convert source address ds:esi. */
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync int rc = SELMToFlatEx(pVM, pRegFrame->eflags, pRegFrame->ds, (RTGCPTR)pRegFrame->esi, &pRegFrame->dsHid,
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync Log(("OUTS source address conversion failed -> fallback, rc=%Vrc\n", rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Access verification first; we currently can't recover properly from traps inside this instruction */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = PGMVerifyAccess(pVM, (RTGCUINTPTR)GCPtrSrc, cTransfers * cbTransfer,
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync Log(("OUTS will generate a trap -> fallback, rc=%Vrc\n", rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync Log(("IOM: rep outs%d port %#x count %d\n", cbTransfer * 8, uPort, cTransfers));
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * If the device supports string transfers, ask it to do as
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * much as it wants. The rest is done with single-word transfers.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = IOMIOPortWriteString(pVM, uPort, &GCPtrSrc, &cTransfers, cbTransfer);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync pRegFrame->esi += (cTransfersOrg - cTransfers) * cbTransfer;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = iomRamRead(pVM, &u32Value, GCPtrSrc, cbTransfer);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync rc = IOMIOPortWrite(pVM, uPort, u32Value, cbTransfer);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync GCPtrSrc = (RTGCPTR)((RTUINTPTR)GCPtrSrc + cbTransfer);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync /* Update ecx on exit. */
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync AssertMsg(rc == VINF_SUCCESS || rc == VINF_IOM_HC_IOPORT_WRITE || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST) || VBOX_FAILURE(rc), ("%Vrc\n", rc));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * DS:ESI,DX[,ECX]
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @returns Strict VBox status code. Informational status codes other than the one documented
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_SUCCESS Success.
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
be2589a6f7086676e45b18d204bb1064889dc586vboxsync * status code must be passed on to EM.
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_IOM_HC_IOPORT_WRITE Defer the write to ring-3. (R0/GC only)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_EM_RAW_GUEST_TRAP The exception was left pending. (TRPMRaiseXcptErr)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_TRPM_XCPT_DISPATCHED The exception was raised and dispatched for raw-mode execution. (TRPMRaiseXcptErr)
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync * @retval VINF_EM_RESCHEDULE_REM The exception was dispatched and cannot be executed in raw-mode. (TRPMRaiseXcptErr)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pVM The virtual machine (GC pointer ofcourse).
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pRegFrame Pointer to CPUMCTXCORE guest registers structure.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param pCpu Disassembler CPU state.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncIOMDECL(int) IOMInterpretOUTS(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Get port number from the first parameter.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * And get the I/O register size from the opcode / prefix.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync unsigned cbSize = 0;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync bool fRc = iomGCGetRegImmData(pCpu, &pCpu->param1, pRegFrame, &uPort, &cbSize);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync AssertMsg(fRc, ("Failed to get reg/imm port number!\n")); NOREF(fRc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync int rc = IOMInterpretCheckPortIOAccess(pVM, pRegFrame, uPort, cbSize);
d8df004f4caf4f71e78f0be1cc2e2a918358ae9fvboxsync AssertMsg(rc == VINF_EM_RAW_GUEST_TRAP || rc == VINF_TRPM_XCPT_DISPATCHED || rc == VINF_TRPM_XCPT_DISPATCHED || VBOX_FAILURE(rc), ("%Vrc\n", rc));