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|
/* $Id: IOMAll.cpp $ */
/** @file
* IOM - Input / Output Monitor - Any Context.
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP LOG_GROUP_IOM_IOPORT
#include <VBox/vmm/iom.h>
#include <VBox/vmm/mm.h>
#include <VBox/param.h>
#include "IOMInternal.h"
#include <VBox/vmm/vmcc.h>
#include <VBox/vmm/vmm.h>
#include <VBox/vmm/selm.h>
#include <VBox/vmm/trpm.h>
#include <VBox/vmm/pdmdev.h>
#include <VBox/vmm/pgm.h>
#include <VBox/vmm/cpum.h>
#include <VBox/err.h>
#include <VBox/log.h>
#include <iprt/assert.h>
#include <iprt/string.h>
#include "IOMInline.h"
/**
* Reads an I/O port register.
*
* @returns Strict VBox status code. Informational status codes other than the one documented
* here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
* @retval VINF_SUCCESS Success.
* @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
* status code must be passed on to EM.
* @retval VINF_IOM_R3_IOPORT_READ Defer the read to ring-3. (R0/RC only)
*
* @param pVM The cross context VM structure.
* @param pVCpu The cross context virtual CPU structure of the calling EMT.
* @param Port The port to read.
* @param pu32Value Where to store the value read.
* @param cbValue The size of the register to read in bytes. 1, 2 or 4 bytes.
*/
VMMDECL(VBOXSTRICTRC) IOMIOPortRead(PVMCC pVM, PVMCPU pVCpu, RTIOPORT Port, uint32_t *pu32Value, size_t cbValue)
{
STAM_COUNTER_INC(&pVM->iom.s.StatIoPortIn);
Assert(pVCpu->iom.s.PendingIOPortWrite.cbValue == 0);
/** @todo should initialize *pu32Value here because it can happen that some
* handle is buggy and doesn't handle all cases. */
/* For lookups we need to share lock IOM. */
int rc2 = IOM_LOCK_SHARED(pVM);
if (RT_SUCCESS(rc2))
{ /* likely */ }
#ifndef IN_RING3
else if (rc2 == VERR_SEM_BUSY)
return VINF_IOM_R3_IOPORT_READ;
#endif
else
AssertMsgFailedReturn(("rc2=%Rrc\n", rc2), rc2);
/*
* Get the entry for the current context.
*/
uint16_t offPort;
CTX_SUFF(PIOMIOPORTENTRY) pRegEntry = iomIoPortGetEntry(pVM, Port, &offPort, &pVCpu->iom.s.idxIoPortLastRead);
if (pRegEntry)
{
#ifdef VBOX_WITH_STATISTICS
PIOMIOPORTSTATSENTRY pStats = iomIoPortGetStats(pVM, pRegEntry, offPort);
#endif
/*
* Found an entry, get the data so we can leave the IOM lock.
*/
uint16_t const fFlags = pRegEntry->fFlags;
PFNIOMIOPORTNEWIN pfnInCallback = pRegEntry->pfnInCallback;
PPDMDEVINS pDevIns = pRegEntry->pDevIns;
#ifndef IN_RING3
if ( pfnInCallback
&& pDevIns
&& pRegEntry->cPorts > 0)
{ /* likely */ }
else
{
STAM_COUNTER_INC(&pStats->InRZToR3);
IOM_UNLOCK_SHARED(pVM);
return VINF_IOM_R3_IOPORT_READ;
}
#endif
void *pvUser = pRegEntry->pvUser;
IOM_UNLOCK_SHARED(pVM);
AssertPtr(pDevIns);
AssertPtr(pfnInCallback);
/*
* Call the device.
*/
VBOXSTRICTRC rcStrict = PDMCritSectEnter(pVM, pDevIns->CTX_SUFF(pCritSectRo), VINF_IOM_R3_IOPORT_READ);
if (rcStrict == VINF_SUCCESS)
{
STAM_PROFILE_START(&pStats->CTX_SUFF_Z(ProfIn), a);
rcStrict = pfnInCallback(pDevIns, pvUser, fFlags & IOM_IOPORT_F_ABS ? Port : offPort, pu32Value, (unsigned)cbValue);
STAM_PROFILE_STOP(&pStats->CTX_SUFF_Z(ProfIn), a);
PDMCritSectLeave(pVM, pDevIns->CTX_SUFF(pCritSectRo));
#ifndef IN_RING3
if (rcStrict == VINF_IOM_R3_IOPORT_READ)
STAM_COUNTER_INC(&pStats->InRZToR3);
else
#endif
{
STAM_COUNTER_INC(&pStats->CTX_SUFF_Z(In));
STAM_COUNTER_INC(&iomIoPortGetStats(pVM, pRegEntry, 0)->Total);
if (rcStrict == VERR_IOM_IOPORT_UNUSED)
{
/* make return value */
rcStrict = VINF_SUCCESS;
switch (cbValue)
{
case 1: *(uint8_t *)pu32Value = 0xff; break;
case 2: *(uint16_t *)pu32Value = 0xffff; break;
case 4: *(uint32_t *)pu32Value = UINT32_C(0xffffffff); break;
default:
AssertMsgFailedReturn(("Invalid I/O port size %d. Port=%d\n", cbValue, Port), VERR_IOM_INVALID_IOPORT_SIZE);
}
}
}
Log3(("IOMIOPortRead: Port=%RTiop *pu32=%08RX32 cb=%d rc=%Rrc\n", Port, *pu32Value, cbValue, VBOXSTRICTRC_VAL(rcStrict)));
STAM_COUNTER_INC(&iomIoPortGetStats(pVM, pRegEntry, 0)->Total);
}
else
STAM_COUNTER_INC(&pStats->InRZToR3);
return rcStrict;
}
/*
* Ok, no handler for this port.
*/
IOM_UNLOCK_SHARED(pVM);
switch (cbValue)
{
case 1: *(uint8_t *)pu32Value = 0xff; break;
case 2: *(uint16_t *)pu32Value = 0xffff; break;
case 4: *(uint32_t *)pu32Value = UINT32_C(0xffffffff); break;
default:
AssertMsgFailedReturn(("Invalid I/O port size %d. Port=%d\n", cbValue, Port), VERR_IOM_INVALID_IOPORT_SIZE);
}
Log3(("IOMIOPortRead: Port=%RTiop *pu32=%08RX32 cb=%d rc=VINF_SUCCESS\n", Port, *pu32Value, cbValue));
return VINF_SUCCESS;
}
/**
* Reads the string buffer of an I/O port register.
*
* @returns Strict VBox status code. Informational status codes other than the one documented
* here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
* @retval VINF_SUCCESS Success or no string I/O callback in
* this context.
* @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
* status code must be passed on to EM.
* @retval VINF_IOM_R3_IOPORT_READ Defer the read to ring-3. (R0/RC only)
*
* @param pVM The cross context VM structure.
* @param pVCpu The cross context virtual CPU structure of the calling EMT.
* @param uPort The port to read.
* @param pvDst Pointer to the destination buffer.
* @param pcTransfers Pointer to the number of transfer units to read, on return remaining transfer units.
* @param cb Size of the transfer unit (1, 2 or 4 bytes).
*/
VMM_INT_DECL(VBOXSTRICTRC) IOMIOPortReadString(PVMCC pVM, PVMCPU pVCpu, RTIOPORT uPort,
void *pvDst, uint32_t *pcTransfers, unsigned cb)
{
STAM_COUNTER_INC(&pVM->iom.s.StatIoPortInS);
Assert(pVCpu->iom.s.PendingIOPortWrite.cbValue == 0);
/* For lookups we need to share lock IOM. */
int rc2 = IOM_LOCK_SHARED(pVM);
if (RT_SUCCESS(rc2))
{ /* likely */ }
#ifndef IN_RING3
else if (rc2 == VERR_SEM_BUSY)
return VINF_IOM_R3_IOPORT_READ;
#endif
else
AssertMsgFailedReturn(("rc2=%Rrc\n", rc2), rc2);
const uint32_t cRequestedTransfers = *pcTransfers;
Assert(cRequestedTransfers > 0);
/*
* Get the entry for the current context.
*/
uint16_t offPort;
CTX_SUFF(PIOMIOPORTENTRY) pRegEntry = iomIoPortGetEntry(pVM, uPort, &offPort, &pVCpu->iom.s.idxIoPortLastReadStr);
if (pRegEntry)
{
#ifdef VBOX_WITH_STATISTICS
PIOMIOPORTSTATSENTRY pStats = iomIoPortGetStats(pVM, pRegEntry, offPort);
#endif
/*
* Found an entry, get the data so we can leave the IOM lock.
*/
uint16_t const fFlags = pRegEntry->fFlags;
PFNIOMIOPORTNEWINSTRING pfnInStrCallback = pRegEntry->pfnInStrCallback;
PFNIOMIOPORTNEWIN pfnInCallback = pRegEntry->pfnInCallback;
PPDMDEVINS pDevIns = pRegEntry->pDevIns;
#ifndef IN_RING3
if ( pfnInCallback
&& pDevIns
&& pRegEntry->cPorts > 0)
{ /* likely */ }
else
{
STAM_COUNTER_INC(&pStats->InRZToR3);
IOM_UNLOCK_SHARED(pVM);
return VINF_IOM_R3_IOPORT_READ;
}
#endif
void *pvUser = pRegEntry->pvUser;
IOM_UNLOCK_SHARED(pVM);
AssertPtr(pDevIns);
AssertPtr(pfnInCallback);
/*
* Call the device.
*/
VBOXSTRICTRC rcStrict = PDMCritSectEnter(pVM, pDevIns->CTX_SUFF(pCritSectRo), VINF_IOM_R3_IOPORT_READ);
if (rcStrict == VINF_SUCCESS)
{
/*
* First using the string I/O callback.
*/
if (pfnInStrCallback)
{
STAM_PROFILE_START(&pStats->CTX_SUFF_Z(ProfIn), a);
rcStrict = pfnInStrCallback(pDevIns, pvUser, fFlags & IOM_IOPORT_F_ABS ? uPort : offPort,
(uint8_t *)pvDst, pcTransfers, cb);
STAM_PROFILE_STOP(&pStats->CTX_SUFF_Z(ProfIn), a);
}
/*
* Then doing the single I/O fallback.
*/
if ( *pcTransfers > 0
&& rcStrict == VINF_SUCCESS)
{
pvDst = (uint8_t *)pvDst + (cRequestedTransfers - *pcTransfers) * cb;
do
{
uint32_t u32Value = 0;
STAM_PROFILE_START(&pStats->CTX_SUFF_Z(ProfIn), a);
rcStrict = pfnInCallback(pDevIns, pvUser, fFlags & IOM_IOPORT_F_ABS ? uPort : offPort, &u32Value, cb);
STAM_PROFILE_STOP(&pStats->CTX_SUFF_Z(ProfIn), a);
if (rcStrict == VERR_IOM_IOPORT_UNUSED)
{
u32Value = UINT32_MAX;
rcStrict = VINF_SUCCESS;
}
if (IOM_SUCCESS(rcStrict))
{
switch (cb)
{
case 4: *(uint32_t *)pvDst = u32Value; pvDst = (uint8_t *)pvDst + 4; break;
case 2: *(uint16_t *)pvDst = (uint16_t)u32Value; pvDst = (uint8_t *)pvDst + 2; break;
case 1: *(uint8_t *)pvDst = (uint8_t )u32Value; pvDst = (uint8_t *)pvDst + 1; break;
default: AssertFailed();
}
*pcTransfers -= 1;
}
} while ( *pcTransfers > 0
&& rcStrict == VINF_SUCCESS);
}
PDMCritSectLeave(pVM, pDevIns->CTX_SUFF(pCritSectRo));
#ifdef VBOX_WITH_STATISTICS
# ifndef IN_RING3
if (rcStrict == VINF_IOM_R3_IOPORT_READ)
STAM_COUNTER_INC(&pStats->InRZToR3);
else
# endif
{
STAM_COUNTER_INC(&pStats->CTX_SUFF_Z(In));
STAM_COUNTER_INC(&iomIoPortGetStats(pVM, pRegEntry, 0)->Total);
}
#endif
Log3(("IOMIOPortReadStr: uPort=%RTiop pvDst=%p pcTransfer=%p:{%#x->%#x} cb=%d rc=%Rrc\n",
uPort, pvDst, pcTransfers, cRequestedTransfers, *pcTransfers, cb, VBOXSTRICTRC_VAL(rcStrict)));
}
#ifndef IN_RING3
else
STAM_COUNTER_INC(&pStats->InRZToR3);
#endif
return rcStrict;
}
/*
* Ok, no handler for this port.
*/
IOM_UNLOCK_SHARED(pVM);
*pcTransfers = 0;
memset(pvDst, 0xff, cRequestedTransfers * cb);
Log3(("IOMIOPortReadStr: uPort=%RTiop (unused) pvDst=%p pcTransfer=%p:{%#x->%#x} cb=%d rc=VINF_SUCCESS\n",
uPort, pvDst, pcTransfers, cRequestedTransfers, *pcTransfers, cb));
return VINF_SUCCESS;
}
#ifndef IN_RING3
/**
* Defers a pending I/O port write to ring-3.
*
* @returns VINF_IOM_R3_IOPORT_COMMIT_WRITE
* @param pVCpu The cross context virtual CPU structure of the calling EMT.
* @param Port The port to write to.
* @param u32Value The value to write.
* @param cbValue The size of the value (1, 2, 4).
*/
static VBOXSTRICTRC iomIOPortRing3WritePending(PVMCPU pVCpu, RTIOPORT Port, uint32_t u32Value, size_t cbValue)
{
Log5(("iomIOPortRing3WritePending: %#x LB %u -> %RTiop\n", u32Value, cbValue, Port));
AssertReturn(pVCpu->iom.s.PendingIOPortWrite.cbValue == 0, VERR_IOM_IOPORT_IPE_1);
pVCpu->iom.s.PendingIOPortWrite.IOPort = Port;
pVCpu->iom.s.PendingIOPortWrite.u32Value = u32Value;
pVCpu->iom.s.PendingIOPortWrite.cbValue = (uint32_t)cbValue;
VMCPU_FF_SET(pVCpu, VMCPU_FF_IOM);
return VINF_IOM_R3_IOPORT_COMMIT_WRITE;
}
#endif
/**
* Writes to an I/O port register.
*
* @returns Strict VBox status code. Informational status codes other than the one documented
* here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
* @retval VINF_SUCCESS Success.
* @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
* status code must be passed on to EM.
* @retval VINF_IOM_R3_IOPORT_WRITE Defer the write to ring-3. (R0/RC only)
*
* @param pVM The cross context VM structure.
* @param pVCpu The cross context virtual CPU structure of the calling EMT.
* @param Port The port to write to.
* @param u32Value The value to write.
* @param cbValue The size of the register to read in bytes. 1, 2 or 4 bytes.
*/
VMMDECL(VBOXSTRICTRC) IOMIOPortWrite(PVMCC pVM, PVMCPU pVCpu, RTIOPORT Port, uint32_t u32Value, size_t cbValue)
{
STAM_COUNTER_INC(&pVM->iom.s.StatIoPortOut);
#ifndef IN_RING3
Assert(pVCpu->iom.s.PendingIOPortWrite.cbValue == 0);
#endif
/* For lookups we need to share lock IOM. */
int rc2 = IOM_LOCK_SHARED(pVM);
if (RT_SUCCESS(rc2))
{ /* likely */ }
#ifndef IN_RING3
else if (rc2 == VERR_SEM_BUSY)
return iomIOPortRing3WritePending(pVCpu, Port, u32Value, cbValue);
#endif
else
AssertMsgFailedReturn(("rc2=%Rrc\n", rc2), rc2);
/*
* Get the entry for the current context.
*/
uint16_t offPort;
CTX_SUFF(PIOMIOPORTENTRY) pRegEntry = iomIoPortGetEntry(pVM, Port, &offPort, &pVCpu->iom.s.idxIoPortLastWrite);
if (pRegEntry)
{
#ifdef VBOX_WITH_STATISTICS
PIOMIOPORTSTATSENTRY pStats = iomIoPortGetStats(pVM, pRegEntry, offPort);
#endif
/*
* Found an entry, get the data so we can leave the IOM lock.
*/
uint16_t const fFlags = pRegEntry->fFlags;
PFNIOMIOPORTNEWOUT pfnOutCallback = pRegEntry->pfnOutCallback;
PPDMDEVINS pDevIns = pRegEntry->pDevIns;
#ifndef IN_RING3
if ( pfnOutCallback
&& pDevIns
&& pRegEntry->cPorts > 0)
{ /* likely */ }
else
{
IOM_UNLOCK_SHARED(pVM);
STAM_COUNTER_INC(&pStats->OutRZToR3);
return iomIOPortRing3WritePending(pVCpu, Port, u32Value, cbValue);
}
#endif
void *pvUser = pRegEntry->pvUser;
IOM_UNLOCK_SHARED(pVM);
AssertPtr(pDevIns);
AssertPtr(pfnOutCallback);
/*
* Call the device.
*/
VBOXSTRICTRC rcStrict = PDMCritSectEnter(pVM, pDevIns->CTX_SUFF(pCritSectRo), VINF_IOM_R3_IOPORT_WRITE);
if (rcStrict == VINF_SUCCESS)
{
STAM_PROFILE_START(&pStats->CTX_SUFF_Z(ProfOut), a);
rcStrict = pfnOutCallback(pDevIns, pvUser, fFlags & IOM_IOPORT_F_ABS ? Port : offPort, u32Value, (unsigned)cbValue);
STAM_PROFILE_STOP(&pStats->CTX_SUFF_Z(ProfOut), a);
PDMCritSectLeave(pVM, pDevIns->CTX_SUFF(pCritSectRo));
#ifdef VBOX_WITH_STATISTICS
# ifndef IN_RING3
if (rcStrict != VINF_IOM_R3_IOPORT_WRITE)
# endif
{
STAM_COUNTER_INC(&pStats->CTX_SUFF_Z(Out));
STAM_COUNTER_INC(&iomIoPortGetStats(pVM, pRegEntry, 0)->Total);
}
#endif
Log3(("IOMIOPortWrite: Port=%RTiop u32=%08RX32 cb=%d rc=%Rrc\n", Port, u32Value, cbValue, VBOXSTRICTRC_VAL(rcStrict)));
}
#ifndef IN_RING3
if (rcStrict == VINF_IOM_R3_IOPORT_WRITE)
{
STAM_COUNTER_INC(&pStats->OutRZToR3);
return iomIOPortRing3WritePending(pVCpu, Port, u32Value, cbValue);
}
#endif
return rcStrict;
}
/*
* Ok, no handler for that port.
*/
IOM_UNLOCK_SHARED(pVM);
Log3(("IOMIOPortWrite: Port=%RTiop u32=%08RX32 cb=%d nop\n", Port, u32Value, cbValue));
return VINF_SUCCESS;
}
/**
* Writes the string buffer of an I/O port register.
*
* @returns Strict VBox status code. Informational status codes other than the one documented
* here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
* @retval VINF_SUCCESS Success or no string I/O callback in
* this context.
* @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
* status code must be passed on to EM.
* @retval VINF_IOM_R3_IOPORT_WRITE Defer the write to ring-3. (R0/RC only)
*
* @param pVM The cross context VM structure.
* @param pVCpu The cross context virtual CPU structure of the calling EMT.
* @param uPort The port to write to.
* @param pvSrc The guest page to read from.
* @param pcTransfers Pointer to the number of transfer units to write, on
* return remaining transfer units.
* @param cb Size of the transfer unit (1, 2 or 4 bytes).
*/
VMM_INT_DECL(VBOXSTRICTRC) IOMIOPortWriteString(PVMCC pVM, PVMCPU pVCpu, RTIOPORT uPort, void const *pvSrc,
uint32_t *pcTransfers, unsigned cb)
{
STAM_COUNTER_INC(&pVM->iom.s.StatIoPortOutS);
Assert(pVCpu->iom.s.PendingIOPortWrite.cbValue == 0);
Assert(cb == 1 || cb == 2 || cb == 4);
/* Take the IOM lock before performing any device I/O. */
int rc2 = IOM_LOCK_SHARED(pVM);
if (RT_SUCCESS(rc2))
{ /* likely */ }
#ifndef IN_RING3
else if (rc2 == VERR_SEM_BUSY)
return VINF_IOM_R3_IOPORT_WRITE;
#endif
else
AssertMsgFailedReturn(("rc2=%Rrc\n", rc2), rc2);
const uint32_t cRequestedTransfers = *pcTransfers;
Assert(cRequestedTransfers > 0);
/*
* Get the entry for the current context.
*/
uint16_t offPort;
CTX_SUFF(PIOMIOPORTENTRY) pRegEntry = iomIoPortGetEntry(pVM, uPort, &offPort, &pVCpu->iom.s.idxIoPortLastWriteStr);
if (pRegEntry)
{
#ifdef VBOX_WITH_STATISTICS
PIOMIOPORTSTATSENTRY pStats = iomIoPortGetStats(pVM, pRegEntry, offPort);
#endif
/*
* Found an entry, get the data so we can leave the IOM lock.
*/
uint16_t const fFlags = pRegEntry->fFlags;
PFNIOMIOPORTNEWOUTSTRING pfnOutStrCallback = pRegEntry->pfnOutStrCallback;
PFNIOMIOPORTNEWOUT pfnOutCallback = pRegEntry->pfnOutCallback;
PPDMDEVINS pDevIns = pRegEntry->pDevIns;
#ifndef IN_RING3
if ( pfnOutCallback
&& pDevIns
&& pRegEntry->cPorts > 0)
{ /* likely */ }
else
{
IOM_UNLOCK_SHARED(pVM);
STAM_COUNTER_INC(&pStats->OutRZToR3);
return VINF_IOM_R3_IOPORT_WRITE;
}
#endif
void *pvUser = pRegEntry->pvUser;
IOM_UNLOCK_SHARED(pVM);
AssertPtr(pDevIns);
AssertPtr(pfnOutCallback);
/*
* Call the device.
*/
VBOXSTRICTRC rcStrict = PDMCritSectEnter(pVM, pDevIns->CTX_SUFF(pCritSectRo), VINF_IOM_R3_IOPORT_WRITE);
if (rcStrict == VINF_SUCCESS)
{
/*
* First using string I/O if possible.
*/
if (pfnOutStrCallback)
{
STAM_PROFILE_START(&pStats->CTX_SUFF_Z(ProfOut), a);
rcStrict = pfnOutStrCallback(pDevIns, pvUser, fFlags & IOM_IOPORT_F_ABS ? uPort : offPort,
(uint8_t const *)pvSrc, pcTransfers, cb);
STAM_PROFILE_STOP(&pStats->CTX_SUFF_Z(ProfOut), a);
}
/*
* Then doing the single I/O fallback.
*/
if ( *pcTransfers > 0
&& rcStrict == VINF_SUCCESS)
{
pvSrc = (uint8_t *)pvSrc + (cRequestedTransfers - *pcTransfers) * cb;
do
{
uint32_t u32Value;
switch (cb)
{
case 4: u32Value = *(uint32_t *)pvSrc; pvSrc = (uint8_t const *)pvSrc + 4; break;
case 2: u32Value = *(uint16_t *)pvSrc; pvSrc = (uint8_t const *)pvSrc + 2; break;
case 1: u32Value = *(uint8_t *)pvSrc; pvSrc = (uint8_t const *)pvSrc + 1; break;
default: AssertFailed(); u32Value = UINT32_MAX;
}
STAM_PROFILE_START(&pStats->CTX_SUFF_Z(ProfOut), a);
rcStrict = pfnOutCallback(pDevIns, pvUser, fFlags & IOM_IOPORT_F_ABS ? uPort : offPort, u32Value, cb);
STAM_PROFILE_STOP(&pStats->CTX_SUFF_Z(ProfOut), a);
if (IOM_SUCCESS(rcStrict))
*pcTransfers -= 1;
} while ( *pcTransfers > 0
&& rcStrict == VINF_SUCCESS);
}
PDMCritSectLeave(pVM, pDevIns->CTX_SUFF(pCritSectRo));
#ifdef VBOX_WITH_STATISTICS
# ifndef IN_RING3
if (rcStrict == VINF_IOM_R3_IOPORT_WRITE)
STAM_COUNTER_INC(&pStats->OutRZToR3);
else
# endif
{
STAM_COUNTER_INC(&pStats->CTX_SUFF_Z(Out));
STAM_COUNTER_INC(&iomIoPortGetStats(pVM, pRegEntry, 0)->Total);
}
#endif
Log3(("IOMIOPortWriteStr: uPort=%RTiop pvSrc=%p pcTransfer=%p:{%#x->%#x} cb=%d rcStrict=%Rrc\n",
uPort, pvSrc, pcTransfers, cRequestedTransfers, *pcTransfers, cb, VBOXSTRICTRC_VAL(rcStrict)));
}
#ifndef IN_RING3
else
STAM_COUNTER_INC(&pStats->OutRZToR3);
#endif
return rcStrict;
}
/*
* Ok, no handler for this port.
*/
IOM_UNLOCK_SHARED(pVM);
*pcTransfers = 0;
Log3(("IOMIOPortWriteStr: uPort=%RTiop (unused) pvSrc=%p pcTransfer=%p:{%#x->%#x} cb=%d rc=VINF_SUCCESS\n",
uPort, pvSrc, pcTransfers, cRequestedTransfers, *pcTransfers, cb));
return VINF_SUCCESS;
}
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