ATAController.cpp revision e7925b345f17e5bd9f0c1cf3540b7d8573ec274f
/* $Id$ */
/** @file
*
* @todo Actually share this code?
*/
/*
* Copyright (C) 2006-2009 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#define LOG_GROUP LOG_GROUP_DEV_IDE
#ifdef IN_RING3
# include <iprt/semaphore.h>
#endif /* IN_RING3 */
#include <iprt/critsect.h>
#include "ATAController.h"
#include "PIIX3ATABmDma.h"
#include "ide.h"
/**
* The SSM saved state version.
*/
#define ATA_CTL_SAVED_STATE_VERSION 3
#ifndef VBOX_DEVICE_STRUCT_TESTCASE
{
/* Freeze status register contents while processing RESET. */
{
s->uATARegStatus = stat;
}
}
{
/* Freeze status register contents while processing RESET. */
{
s->uATARegStatus |= stat;
}
}
{
/* Freeze status register contents while processing RESET. */
{
s->uATARegStatus &= ~stat;
}
}
#ifdef IN_RING3
typedef void (*PBeginTransferFunc)(AHCIATADevState *);
typedef bool (*PSourceSinkFunc)(AHCIATADevState *);
static void ataReadWriteSectorsBT(AHCIATADevState *);
static void ataPacketBT(AHCIATADevState *);
static void atapiCmdBT(AHCIATADevState *);
static void atapiPassthroughCmdBT(AHCIATADevState *);
static bool ataIdentifySS(AHCIATADevState *);
static bool ataFlushSS(AHCIATADevState *);
static bool ataReadSectorsSS(AHCIATADevState *);
static bool ataWriteSectorsSS(AHCIATADevState *);
static bool ataExecuteDeviceDiagnosticSS(AHCIATADevState *);
static bool ataPacketSS(AHCIATADevState *);
static bool atapiGetConfigurationSS(AHCIATADevState *);
static bool atapiGetEventStatusNotificationSS(AHCIATADevState *);
static bool atapiIdentifySS(AHCIATADevState *);
static bool atapiInquirySS(AHCIATADevState *);
static bool atapiMechanismStatusSS(AHCIATADevState *);
static bool atapiModeSenseErrorRecoverySS(AHCIATADevState *);
static bool atapiModeSenseCDStatusSS(AHCIATADevState *);
static bool atapiReadSS(AHCIATADevState *);
static bool atapiReadCapacitySS(AHCIATADevState *);
static bool atapiReadDiscInformationSS(AHCIATADevState *);
static bool atapiReadTOCNormalSS(AHCIATADevState *);
static bool atapiReadTOCMultiSS(AHCIATADevState *);
static bool atapiReadTOCRawSS(AHCIATADevState *);
static bool atapiReadTrackInformationSS(AHCIATADevState *);
static bool atapiRequestSenseSS(AHCIATADevState *);
static bool atapiPassthroughSS(AHCIATADevState *);
/**
* Begin of transfer function indexes for g_apfnBeginTransFuncs.
*/
typedef enum ATAFNBT
{
ATAFN_BT_NULL = 0,
} ATAFNBT;
/**
* Array of end transfer functions, the index is ATAFNET.
* Make sure ATAFNET and this array match!
*/
{
NULL,
};
/**
*/
typedef enum ATAFNSS
{
ATAFN_SS_NULL = 0,
} ATAFNSS;
/**
* Make sure ATAFNSS and this array match!
*/
{
NULL,
};
{
int rc;
pCtl->AsyncIOReqHead = 0;
pCtl->AsyncIOReqTail = 0;
}
{
int rc;
pCtl->AsyncIOReqHead++;
if (RT_FAILURE(rc))
{
}
}
{
int rc;
const AHCIATARequest *pReq;
else
return pReq;
}
/**
* Remove the request with the given type, as it's finished. The request
* is not removed blindly, as this could mean a RESET request that is not
* yet processed (but has cleared the request queue) is lost.
*
* @param pCtl Controller for which to remove the request.
* @param ReqType Type of the request to remove.
*/
{
int rc;
if (pCtl->AsyncIOReqHead != pCtl->AsyncIOReqTail && pCtl->aAsyncIORequests[pCtl->AsyncIOReqTail].ReqType == ReqType)
{
pCtl->AsyncIOReqTail++;
}
}
/**
* Dump the request queue for a particular controller. First dump the queue
* contents, then the already processed entries, as long as they haven't been
* overwritten.
*
* @param pCtl Controller for which to dump the queue.
*/
{
int rc;
LogRel(("ATA: Ctl: request queue dump (topmost is current):\n"));
do
{
LogRel(("ATA: Ctl: processed requests (topmost is oldest):\n"));
{
case AHCIATA_AIO_NEW:
LogRel(("new transfer request, iIf=%d iBeginTransfer=%d iSourceSink=%d cbTotalTransfer=%d uTxDir=%d\n", pCtl->aAsyncIORequests[curr].u.t.iIf, pCtl->aAsyncIORequests[curr].u.t.iBeginTransfer, pCtl->aAsyncIORequests[curr].u.t.iSourceSink, pCtl->aAsyncIORequests[curr].u.t.cbTotalTransfer, pCtl->aAsyncIORequests[curr].u.t.uTxDir));
break;
case AHCIATA_AIO_DMA:
LogRel(("dma transfer finished\n"));
break;
case AHCIATA_AIO_PIO:
LogRel(("pio transfer finished\n"));
break;
LogRel(("reset asserted request\n"));
break;
LogRel(("reset cleared request\n"));
break;
case AHCIATA_AIO_ABORT:
LogRel(("abort request, iIf=%d fResetDrive=%d\n", pCtl->aAsyncIORequests[curr].u.a.iIf, pCtl->aAsyncIORequests[curr].u.a.fResetDrive));
break;
default:
}
}
/**
* Checks whether the request queue for a particular controller is empty
* or whether a particular controller is idle.
*
* @param pCtl Controller for which to check the queue.
* @param fStrict If set then the controller is checked to be idle.
*/
{
int rc;
bool fIdle;
if (!fIdle)
if (fStrict)
return fIdle;
}
/**
* Send a transfer request to the async I/O thread.
*
* @param s Pointer to the ATA device state data.
* @param cbTotalTransfer Data transfer size.
* @param uTxDir Data transfer direction.
* @param iBeginTransfer Index of BeginTransfer callback.
* @param iSourceSink Index of SourceSink callback.
*/
static void ataStartTransfer(AHCIATADevState *s, uint32_t cbTotalTransfer, uint8_t uTxDir, ATAFNBT iBeginTransfer, ATAFNSS iSourceSink, bool fChainedTransfer)
{
/* Do not issue new requests while the RESET line is asserted. */
{
return;
}
/* If the controller is already doing something else right now, ignore
* the command that is being submitted. Some broken guests issue commands
* twice (e.g. the Linux kernel that comes with Acronis True Image 8). */
{
Log(("%s: Ctl: ignored command %#04x, controller state %d\n", __FUNCTION__, s->uATARegCommand, pCtl->uAsyncIOState));
return;
}
if (fChainedTransfer)
else
/*
* Kick the worker thread into action.
*/
}
/**
* Send an abort command request to the async I/O thread.
*
* @param s Pointer to the ATA device state data.
* @param fResetDrive Whether to reset the drive or just abort a command.
*/
{
/* Do not issue new requests while the RESET line is asserted. */
{
return;
}
}
static void ataSetIRQ(AHCIATADevState *s)
{
if (!(s->uATARegDevCtl & ATA_DEVCTL_DISABLE_IRQ))
{
/* The BMDMA unit unconditionally sets BM_STATUS_INT if the interrupt
* line is asserted. It monitors the line for a rising edge. */
if (!s->fIrqPending)
/* Only actually set the IRQ line if updating the currently selected drive. */
}
s->fIrqPending = true;
}
#endif /* IN_RING3 */
static void ataUnsetIRQ(AHCIATADevState *s)
{
if (!(s->uATARegDevCtl & ATA_DEVCTL_DISABLE_IRQ))
{
/* Only actually unset the IRQ line if updating the currently selected drive. */
}
s->fIrqPending = false;
}
#ifdef IN_RING3
{
s->iIOBufferPIODataStart = start;
ataSetStatus(s, ATA_STAT_DRQ);
}
static void ataPIOTransferStop(AHCIATADevState *s)
{
if (s->fATAPITransfer)
{
ataSetIRQ(s);
s->fATAPITransfer = false;
}
s->cbTotalTransfer = 0;
s->cbElementaryTransfer = 0;
s->iIOBufferPIODataStart = 0;
s->iIOBufferPIODataEnd = 0;
s->iBeginTransfer = ATAFN_BT_NULL;
s->iSourceSink = ATAFN_SS_NULL;
}
static void ataPIOTransferLimitATAPI(AHCIATADevState *s)
{
/* Use maximum transfer size if the guest requested 0. Avoids a hang. */
if (cbLimit == 0)
cbLimit = 0xfffe;
if (cbLimit == 0xffff)
cbLimit--;
if (cbTransfer > cbLimit)
{
/* Byte count limit for clipping must be even in this case */
if (cbLimit & 1)
cbLimit--;
}
s->uATARegLCyl = cbTransfer;
}
{
/* 0 means either 256 (LBA28) or 65536 (LBA48) sectors. */
if (s->fLBA48)
{
if (!s->uATARegNSector && !s->uATARegNSectorHOB)
return 65536;
else
}
else
{
if (!s->uATARegNSector)
return 256;
else
return s->uATARegNSector;
}
}
{
{
if (*pbSrc)
else
}
}
{
{
if (*pbSrc)
else
pbDst[i] = ' ';
}
}
{
}
{
}
{
}
{
}
{
}
{
}
{
iATAPILBA += 150;
}
{
}
{
s->uATARegError = 0; /* Not needed by ATA spec, but cannot hurt. */
}
{
s->uATARegError = uErrorCode;
s->cbTotalTransfer = 0;
s->cbElementaryTransfer = 0;
s->iIOBufferCur = 0;
s->iIOBufferEnd = 0;
s->uTxDir = PDMBLOCKTXDIR_NONE;
s->iBeginTransfer = ATAFN_BT_NULL;
s->iSourceSink = ATAFN_SS_NULL;
}
static bool ataIdentifySS(AHCIATADevState *s)
{
uint16_t *p;
char aSerial[20];
int rc;
{
/* Generate a predictable serial for drives which don't have a UUID. */
}
else
memset(p, 0, 512);
p[0] = RT_H2LE_U16(0x0040);
/* Block size; obsolete, but required for the BIOS. */
#if ATA_MAX_MULT_SECTORS > 1
#endif
* s->PCHSGeometry.cHeads
* s->PCHSGeometry.cSectors);
* s->PCHSGeometry.cHeads
if (s->cMultSectors)
{
}
else
{
/* Report maximum number of sectors possible with LBA28 */
}
p[63] = RT_H2LE_U16(ATA_TRANSFER_ID(ATA_MODE_MDMA, ATA_MDMA_MODE_MAX, s->uATATransferMode)); /* MDMA modes supported / mode enabled */
p[64] = RT_H2LE_U16(ATA_PIO_MODE_MAX > 2 ? (1 << (ATA_PIO_MODE_MAX - 2)) - 1 : 0); /* PIO modes beyond PIO2 supported */
p[82] = RT_H2LE_U16(1 << 3 | 1 << 5 | 1 << 6); /* supports power management, write cache and look-ahead */
else
p[83] = RT_H2LE_U16(1 << 14 | 1 << 10 | 1 << 12 | 1 << 13); /* supports LBA48, FLUSH CACHE and FLUSH CACHE EXT */
p[85] = RT_H2LE_U16(1 << 3 | 1 << 5 | 1 << 6); /* enabled power management, write cache and look-ahead */
else
p[86] = RT_H2LE_U16(1 << 10 | 1 << 12 | 1 << 13); /* enabled LBA48, FLUSH CACHE and FLUSH CACHE EXT */
p[88] = RT_H2LE_U16(ATA_TRANSFER_ID(ATA_MODE_UDMA, ATA_UDMA_MODE_MAX, s->uATATransferMode)); /* UDMA modes supported / mode enabled */
{
}
s->iSourceSink = ATAFN_SS_NULL;
ataCmdOK(s, ATA_STAT_SEEK);
return false;
}
static bool ataFlushSS(AHCIATADevState *s)
{
int rc;
Assert(!s->cbElementaryTransfer);
STAM_PROFILE_START(&s->StatFlushes, f);
STAM_PROFILE_STOP(&s->StatFlushes, f);
ataCmdOK(s, 0);
return false;
}
static bool atapiIdentifySS(AHCIATADevState *s)
{
uint16_t *p;
char aSerial[20];
int rc;
{
/* Generate a predictable serial for drives which don't have a UUID. */
}
else
memset(p, 0, 512);
/* Removable CDROM, 50us response, 12 byte packets */
p[63] = RT_H2LE_U16(ATA_TRANSFER_ID(ATA_MODE_MDMA, ATA_MDMA_MODE_MAX, s->uATATransferMode)); /* MDMA modes supported / mode enabled */
p[64] = RT_H2LE_U16(ATA_PIO_MODE_MAX > 2 ? (1 << (ATA_PIO_MODE_MAX - 2)) - 1 : 0); /* PIO modes beyond PIO2 supported */
p[86] = RT_H2LE_U16(0);
p[88] = RT_H2LE_U16(ATA_TRANSFER_ID(ATA_MODE_UDMA, ATA_UDMA_MODE_MAX, s->uATATransferMode)); /* UDMA modes supported / mode enabled */
s->iSourceSink = ATAFN_SS_NULL;
ataCmdOK(s, ATA_STAT_SEEK);
return false;
}
static void ataSetSignature(AHCIATADevState *s)
{
/* put signature */
s->uATARegNSector = 1;
s->uATARegSector = 1;
if (s->fATAPI)
{
s->uATARegLCyl = 0x14;
s->uATARegHCyl = 0xeb;
}
else if (s->pDrvBlock)
{
s->uATARegLCyl = 0;
s->uATARegHCyl = 0;
}
else
{
s->uATARegLCyl = 0xff;
s->uATARegHCyl = 0xff;
}
}
{
if (s->uATARegSelect & 0x40)
{
/* any LBA variant */
if (s->fLBA48)
{
/* LBA48 */
s->uATARegSector;
}
else
{
/* LBA */
}
}
else
{
/* CHS */
iLBA = ((s->uATARegHCyl << 8) | s->uATARegLCyl) * s->PCHSGeometry.cHeads * s->PCHSGeometry.cSectors +
(s->uATARegSector - 1);
}
return iLBA;
}
{
if (s->uATARegSelect & 0x40)
{
/* any LBA variant */
if (s->fLBA48)
{
/* LBA48 */
s->uATARegSector = iLBA;
}
else
{
/* LBA */
s->uATARegSector = (iLBA);
}
}
else
{
/* CHS */
s->uATARegLCyl = cyl;
}
}
{
int rc;
STAM_PROFILE_ADV_START(&s->StatReads, r);
STAM_PROFILE_ADV_STOP(&s->StatReads, r);
return rc;
}
static int ataWriteSectors(AHCIATADevState *s, uint64_t u64Sector, const void *pvBuf, uint32_t cSectors)
{
int rc;
STAM_PROFILE_ADV_START(&s->StatWrites, w);
STAM_PROFILE_ADV_STOP(&s->StatWrites, w);
return rc;
}
static void ataReadWriteSectorsBT(AHCIATADevState *s)
{
if (cSectors > s->cSectorsPerIRQ)
else
if (s->uTxDir == PDMBLOCKTXDIR_TO_DEVICE)
ataCmdOK(s, 0);
}
{
int rc;
LogRel(("ATA: Host disk full\n"));
N_("Host system reported disk full. VM execution is suspended. You can resume after freeing some space"));
}
{
int rc;
LogRel(("ATA: File too big\n"));
N_("Host system reported that the file size limit of the host file system has been exceeded. VM execution is suspended. You need to move your virtual hard disk to a filesystem which allows bigger files"));
}
{
int rc;
LogRel(("ATA: iSCSI target unavailable\n"));
N_("The iSCSI target has stopped responding. VM execution is suspended. You can resume when it is available again"));
}
static bool ataReadSectorsSS(AHCIATADevState *s)
{
int rc;
iLBA = ataGetSector(s);
if (RT_SUCCESS(rc))
{
if (s->cbElementaryTransfer == s->cbTotalTransfer)
s->iSourceSink = ATAFN_SS_NULL;
ataCmdOK(s, ATA_STAT_SEEK);
}
else
{
if (rc == VERR_DISK_FULL)
{
return true;
}
if (rc == VERR_FILE_TOO_BIG)
{
return true;
}
{
/* iSCSI connection abort (first error) or failure to reestablish
* connection (second error). Pause VM. On resume we'll retry. */
return true;
}
if (s->cErrors++ < MAX_LOG_REL_ERRORS)
LogRel(("AHCI ATA: LUN#%d: disk read error (rc=%Rrc iSector=%#RX64 cSectors=%#RX32)\n",
ataCmdError(s, ID_ERR);
}
/** @todo implement redo for iSCSI */
return false;
}
static bool ataWriteSectorsSS(AHCIATADevState *s)
{
int rc;
iLBA = ataGetSector(s);
if (RT_SUCCESS(rc))
{
if (!s->cbTotalTransfer)
s->iSourceSink = ATAFN_SS_NULL;
ataCmdOK(s, ATA_STAT_SEEK);
}
else
{
if (rc == VERR_DISK_FULL)
{
return true;
}
if (rc == VERR_FILE_TOO_BIG)
{
return true;
}
{
/* iSCSI connection abort (first error) or failure to reestablish
* connection (second error). Pause VM. On resume we'll retry. */
return true;
}
if (s->cErrors++ < MAX_LOG_REL_ERRORS)
LogRel(("AHCI ATA: LUN#%d: disk write error (rc=%Rrc iSector=%#RX64 cSectors=%#RX32)\n",
ataCmdError(s, ID_ERR);
}
/** @todo implement redo for iSCSI */
return false;
}
static void atapiCmdOK(AHCIATADevState *s)
{
s->uATARegError = 0;
| (!s->cbTotalTransfer ? ATAPI_INT_REASON_CD : 0);
}
{
Log(("%s: sense=%#x (%s) asc=%#x ascq=%#x (%s)\n", __FUNCTION__, pabATAPISense[2] & 0x0f, SCSISenseText(pabATAPISense[2] & 0x0f),
s->cbTotalTransfer = 0;
s->cbElementaryTransfer = 0;
s->iIOBufferCur = 0;
s->iIOBufferEnd = 0;
s->uTxDir = PDMBLOCKTXDIR_NONE;
s->iBeginTransfer = ATAFN_BT_NULL;
s->iSourceSink = ATAFN_SS_NULL;
}
/** @todo deprecated function - doesn't provide enough info. Replace by direct
* calls to atapiCmdError() with full data. */
{
}
static void atapiCmdBT(AHCIATADevState *s)
{
s->fATAPITransfer = true;
s->cbElementaryTransfer = s->cbTotalTransfer;
if (s->uTxDir == PDMBLOCKTXDIR_TO_DEVICE)
atapiCmdOK(s);
}
static void atapiPassthroughCmdBT(AHCIATADevState *s)
{
/* @todo implement an algorithm for correctly determining the read and
* write sector size without sending additional commands to the drive.
* This should be doable by saving processing the configuration requests
* and replies. */
#if 0
if (s->uTxDir == PDMBLOCKTXDIR_TO_DEVICE)
{
{
int rc;
cbTransfer = sizeof(aModeSenseResult);
rc = s->pDrvBlock->pfnSendCmd(s->pDrvBlock, aModeSenseCmd, PDMBLOCKTXDIR_FROM_DEVICE, aModeSenseResult, &cbTransfer, &uDummySense, 500);
if (RT_FAILURE(rc))
{
return;
}
/* Select sector size based on the current data block type. */
{
case 0:
s->cbATAPISector = 2352;
break;
case 1:
s->cbATAPISector = 2368;
break;
case 2:
case 3:
s->cbATAPISector = 2448;
break;
case 8:
case 10:
s->cbATAPISector = 2048;
break;
case 9:
s->cbATAPISector = 2336;
break;
case 11:
s->cbATAPISector = 2056;
break;
case 12:
s->cbATAPISector = 2324;
break;
case 13:
s->cbATAPISector = 2332;
break;
default:
s->cbATAPISector = 0;
}
s->cbTotalTransfer *= s->cbATAPISector;
if (s->cbTotalTransfer == 0)
s->uTxDir = PDMBLOCKTXDIR_NONE;
}
}
#endif
atapiCmdBT(s);
}
static bool atapiReadSS(AHCIATADevState *s)
{
int rc = VINF_SUCCESS;
STAM_PROFILE_ADV_START(&s->StatReads, r);
switch (s->cbATAPISector)
{
case 2048:
rc = s->pDrvBlock->pfnRead(s->pDrvBlock, (uint64_t)s->iATAPILBA * s->cbATAPISector, s->CTXALLSUFF(pbIOBuffer), s->cbATAPISector * cSectors);
break;
case 2352:
{
{
/* sync bytes */
*pbBuf++ = 0x00;
pbBuf += 11;
/* MSF */
ataLBA2MSF(pbBuf, i);
pbBuf += 3;
/* data */
if (RT_FAILURE(rc))
break;
pbBuf += 2048;
/* ECC */
pbBuf += 288;
}
}
break;
default:
break;
}
STAM_PROFILE_ADV_STOP(&s->StatReads, r);
if (RT_SUCCESS(rc))
{
/* The initial buffer end value has been set up based on the total
* transfer size. But the I/O buffer size limits what can actually be
* done in one transfer, so set the actual value of the buffer end. */
if (cbTransfer >= s->cbTotalTransfer)
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
}
else
{
if (s->cErrors++ < MAX_LOG_REL_ERRORS)
LogRel(("AHCI ATA: LUN#%d: CD-ROM read error, %d sectors at LBA %d\n", s->iLUN, cSectors, s->iATAPILBA));
}
return false;
}
static bool atapiPassthroughSS(AHCIATADevState *s)
{
int rc = VINF_SUCCESS;
if (s->uTxDir == PDMBLOCKTXDIR_TO_DEVICE)
/* Simple heuristics: if there is at least one sector of data
* to transfer, it's worth updating the LEDs. */
if (cbTransfer >= 2048)
{
if (s->uTxDir != PDMBLOCKTXDIR_TO_DEVICE)
{
}
else
{
pProf = &s->StatWrites;
}
}
{
/* Linux accepts commands with up to 100KB of data, but expects
* us to handle commands with up to 128KB of data. The usual
* imbalance of powers. */
switch (s->aATAPICmd[0])
{
case SCSI_READ_10:
case SCSI_WRITE_10:
case SCSI_WRITE_AND_VERIFY_10:
break;
case SCSI_READ_12:
case SCSI_WRITE_12:
break;
case SCSI_READ_CD:
break;
case SCSI_READ_CD_MSF:
break;
default:
if (s->cErrors++ < MAX_LOG_REL_ERRORS)
{
}
return false;
}
cReqSectors = 0;
{
else
cReqSectors = i;
switch (s->aATAPICmd[0])
{
case SCSI_READ_10:
case SCSI_WRITE_10:
case SCSI_WRITE_AND_VERIFY_10:
break;
case SCSI_READ_12:
case SCSI_WRITE_12:
break;
case SCSI_READ_CD:
break;
case SCSI_READ_CD_MSF:
break;
}
rc = s->pDrvBlock->pfnSendCmd(s->pDrvBlock, aATAPICmd, (PDMBLOCKTXDIR)s->uTxDir, pbBuf, &cbCurrTX, abATAPISense, sizeof(abATAPISense), 30000 /**< @todo timeout */);
if (rc != VINF_SUCCESS)
break;
iATAPILBA += cReqSectors;
}
}
else
rc = s->pDrvBlock->pfnSendCmd(s->pDrvBlock, s->aATAPICmd, (PDMBLOCKTXDIR)s->uTxDir, s->CTXALLSUFF(pbIOBuffer), &cbTransfer, abATAPISense, sizeof(abATAPISense), 30000 /**< @todo timeout */);
if (cbTransfer >= 2048)
{
if (s->uTxDir != PDMBLOCKTXDIR_TO_DEVICE)
{
}
else
{
}
}
if (RT_SUCCESS(rc))
{
if (s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE)
{
/* Reply with the same amount of data as the real drive. */
s->cbTotalTransfer = cbTransfer;
/* The initial buffer end value has been set up based on the total
* transfer size. But the I/O buffer size limits what can actually be
* done in one transfer, so set the actual value of the buffer end. */
if (s->aATAPICmd[0] == SCSI_INQUIRY)
{
/* Make sure that the real drive cannot be identified.
* Motivation: changing the VM configuration should be as
* invisible as possible to the guest. */
Log3(("ATAPI PT inquiry data before (%d): %.*Rhxs\n", cbTransfer, cbTransfer, s->CTXALLSUFF(pbIOBuffer)));
}
if (cbTransfer)
}
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
}
else
{
if (s->cErrors++ < MAX_LOG_REL_ERRORS)
{
do
{
/* don't log superflous errors */
if ( rc == VERR_DEV_IO_ERROR
&& ( u8Cmd == SCSI_TEST_UNIT_READY
|| u8Cmd == SCSI_READ_CAPACITY
|| u8Cmd == SCSI_READ_TOC_PMA_ATIP))
break;
LogRel(("AHCI ATA: LUN#%d: CD-ROM passthrough command (%#04x) error %d %Rrc\n", s->iLUN, u8Cmd, abATAPISense[0] & 0x0f, rc));
} while (0);
}
}
return false;
}
static bool atapiReadSectors(AHCIATADevState *s, uint32_t iATAPILBA, uint32_t cSectors, uint32_t cbSector)
{
s->cbATAPISector = cbSector;
ataStartTransfer(s, cSectors * cbSector, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_READ, true);
return false;
}
static bool atapiReadCapacitySS(AHCIATADevState *s)
{
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiReadDiscInformationSS(AHCIATADevState *s)
{
pbBuf[7] = (0 << 7) | (0 << 6) | (1 << 5) | (0 << 2) | (0 << 0); /* disc id not valid, disc bar code not valid, unrestricted use, not dirty, not RW medium */
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiReadTrackInformationSS(AHCIATADevState *s)
{
{
return false;
}
pbBuf[6] = (0 << 7) | (0 << 6) | (0 << 5) | (0 << 6) | (1 << 0); /* not reserved track, not blank, not packet writing, not fixed packet, data mode 1 */
pbBuf[7] = (0 << 1) | (0 << 0); /* last recorded address not valid, next recordable address not valid */
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiGetConfigurationSS(AHCIATADevState *s)
{
/* Accept valid request types only, and only starting feature 0. */
{
return false;
}
/** @todo implement switching between CD-ROM and DVD-ROM profile (the only
* way to differentiate them right now is based on the image size). Also
* implement signalling "no current profile" if no medium is loaded. */
/* The MMC-3 spec says that DVD-ROM read capability should be reported
* before CD-ROM read capability. */
/* Other profiles we might want to add in the future: 0x40 (BD-ROM) and 0x50 (HDDVD-ROM) */
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiGetEventStatusNotificationSS(AHCIATADevState *s)
{
{
/* no asynchronous operation supported */
return false;
}
do
{
switch (OldStatus)
{
/* mount */
break;
/* umount */
break;
default:
break;
}
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiInquirySS(AHCIATADevState *s)
{
#if 1/*ndef VBOX*/ /** @todo implement MESN + AENC. (async notification on removal and stuff.) */
#else
#endif
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiModeSenseErrorRecoverySS(AHCIATADevState *s)
{
pbBuf[3] = 0;
pbBuf[4] = 0;
pbBuf[5] = 0;
pbBuf[6] = 0;
pbBuf[7] = 0;
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiModeSenseCDStatusSS(AHCIATADevState *s)
{
pbBuf[3] = 0;
pbBuf[4] = 0;
pbBuf[5] = 0;
pbBuf[6] = 0;
pbBuf[7] = 0;
/* The following claims we support audio play. This is obviously false,
* but the Linux generic CDROM support makes many features depend on this
* capability. If it's not set, this causes many things to be disabled. */
pbBuf[14] = (1 << 0) | (1 << 3) | (1 << 5); /* lock supported, eject supported, tray type loading mechanism */
pbBuf[15] = 0; /* no subchannel reads supported, no separate audio volume control, no changer etc. */
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiRequestSenseSS(AHCIATADevState *s)
{
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiMechanismStatusSS(AHCIATADevState *s)
{
ataH2BE_U16(pbBuf, 0);
/* no current LBA */
pbBuf[2] = 0;
pbBuf[3] = 0;
pbBuf[4] = 0;
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiReadTOCNormalSS(AHCIATADevState *s)
{
bool fMSF;
{
return false;
}
q = pbBuf + 2;
*q++ = 1; /* first session */
*q++ = 1; /* last session */
if (iStartTrack <= 1)
{
*q++ = 0; /* reserved */
*q++ = 0x14; /* ADR, control */
*q++ = 1; /* track number */
*q++ = 0; /* reserved */
if (fMSF)
{
*q++ = 0; /* reserved */
ataLBA2MSF(q, 0);
q += 3;
}
else
{
/* sector 0 */
ataH2BE_U32(q, 0);
q += 4;
}
}
/* lead out track */
*q++ = 0; /* reserved */
*q++ = 0x14; /* ADR, control */
*q++ = 0xaa; /* track number */
*q++ = 0; /* reserved */
if (fMSF)
{
*q++ = 0; /* reserved */
ataLBA2MSF(q, s->cTotalSectors);
q += 3;
}
else
{
ataH2BE_U32(q, s->cTotalSectors);
q += 4;
}
if (cbSize < s->cbTotalTransfer)
s->cbTotalTransfer = cbSize;
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiReadTOCMultiSS(AHCIATADevState *s)
{
bool fMSF;
/* multi session: only a single session defined */
/** @todo double-check this stuff against what a real drive says for a CD-ROM (not a CD-R) with only a single data session. Maybe solve the problem with "cdrdao read-toc" not being able to figure out whether numbers are in BCD or hex. */
if (fMSF)
{
}
else
{
/* sector 0 */
}
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static bool atapiReadTOCRawSS(AHCIATADevState *s)
{
bool fMSF;
q = pbBuf + 2;
*q++ = 1; /* first session */
*q++ = 1; /* last session */
*q++ = 1; /* session number */
*q++ = 0x14; /* data track */
*q++ = 0; /* track number */
*q++ = 0xa0; /* first track in program area */
*q++ = 0; /* min */
*q++ = 0; /* sec */
*q++ = 0; /* frame */
*q++ = 0;
*q++ = 1; /* first track */
*q++ = 0x00; /* disk type CD-DA or CD data */
*q++ = 0;
*q++ = 1; /* session number */
*q++ = 0x14; /* data track */
*q++ = 0; /* track number */
*q++ = 0xa1; /* last track in program area */
*q++ = 0; /* min */
*q++ = 0; /* sec */
*q++ = 0; /* frame */
*q++ = 0;
*q++ = 1; /* last track */
*q++ = 0;
*q++ = 0;
*q++ = 1; /* session number */
*q++ = 0x14; /* data track */
*q++ = 0; /* track number */
*q++ = 0xa2; /* lead-out */
*q++ = 0; /* min */
*q++ = 0; /* sec */
*q++ = 0; /* frame */
if (fMSF)
{
*q++ = 0; /* reserved */
ataLBA2MSF(q, s->cTotalSectors);
q += 3;
}
else
{
ataH2BE_U32(q, s->cTotalSectors);
q += 4;
}
*q++ = 1; /* session number */
*q++ = 0x14; /* ADR, control */
*q++ = 0; /* track number */
*q++ = 1; /* point */
*q++ = 0; /* min */
*q++ = 0; /* sec */
*q++ = 0; /* frame */
if (fMSF)
{
*q++ = 0; /* reserved */
ataLBA2MSF(q, 0);
q += 3;
}
else
{
/* sector 0 */
ataH2BE_U32(q, 0);
q += 4;
}
if (cbSize < s->cbTotalTransfer)
s->cbTotalTransfer = cbSize;
s->iSourceSink = ATAFN_SS_NULL;
atapiCmdOK(s);
return false;
}
static void atapiParseCmdVirtualATAPI(AHCIATADevState *s)
{
switch (pbPacket[0])
{
case SCSI_TEST_UNIT_READY:
if (s->cNotifiedMediaChange > 0)
{
if (s->cNotifiedMediaChange-- > 2)
else
atapiCmdErrorSimple(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */
}
atapiCmdOK(s);
else
break;
ataStartTransfer(s, RT_MIN(cbMax, 8), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_GET_EVENT_STATUS_NOTIFICATION, true);
break;
case SCSI_MODE_SENSE_10:
{
switch (uPageControl)
{
case SCSI_PAGECONTROL_CURRENT:
switch (uPageCode)
{
ataStartTransfer(s, RT_MIN(cbMax, 16), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_MODE_SENSE_ERROR_RECOVERY, true);
break;
case SCSI_MODEPAGE_CD_STATUS:
ataStartTransfer(s, RT_MIN(cbMax, 40), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_MODE_SENSE_CD_STATUS, true);
break;
default:
goto error_cmd;
}
break;
goto error_cmd;
case SCSI_PAGECONTROL_DEFAULT:
goto error_cmd;
default:
case SCSI_PAGECONTROL_SAVED:
break;
}
}
break;
case SCSI_REQUEST_SENSE:
ataStartTransfer(s, RT_MIN(cbMax, 18), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_REQUEST_SENSE, true);
break;
{
else
atapiCmdOK(s);
}
else
break;
case SCSI_READ_10:
case SCSI_READ_12:
{
if (s->cNotifiedMediaChange > 0)
{
s->cNotifiedMediaChange-- ;
atapiCmdErrorSimple(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */
break;
}
{
break;
}
if (pbPacket[0] == SCSI_READ_10)
else
if (cSectors == 0)
{
atapiCmdOK(s);
break;
}
{
/* Rate limited logging, one log line per second. For
* guests that insist on reading from places outside the
* valid area this often generates too many release log
* entries otherwise. */
static uint64_t uLastLogTS = 0;
{
LogRel(("AHCI ATA: LUN#%d: CD-ROM block number %Ld invalid (READ)\n", s->iLUN, (uint64_t)iATAPILBA + cSectors));
uLastLogTS = RTTimeMilliTS();
}
break;
}
}
break;
case SCSI_READ_CD:
{
if (s->cNotifiedMediaChange > 0)
{
s->cNotifiedMediaChange-- ;
atapiCmdErrorSimple(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */
break;
}
{
break;
}
if (cSectors == 0)
{
atapiCmdOK(s);
break;
}
{
/* Rate limited logging, one log line per second. For
* guests that insist on reading from places outside the
* valid area this often generates too many release log
* entries otherwise. */
static uint64_t uLastLogTS = 0;
{
LogRel(("AHCI ATA: LUN#%d: CD-ROM block number %Ld invalid (READ CD)\n", s->iLUN, (uint64_t)iATAPILBA + cSectors));
uLastLogTS = RTTimeMilliTS();
}
break;
}
{
case 0x00:
/* nothing */
atapiCmdOK(s);
break;
case 0x10:
/* normal read */
break;
case 0xf8:
/* read all data */
break;
default:
break;
}
}
break;
case SCSI_SEEK_10:
{
if (s->cNotifiedMediaChange > 0)
{
s->cNotifiedMediaChange-- ;
atapiCmdErrorSimple(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */
break;
}
{
break;
}
if (iATAPILBA > s->cTotalSectors)
{
/* Rate limited logging, one log line per second. For
* guests that insist on seeking to places outside the
* valid area this often generates too many release log
* entries otherwise. */
static uint64_t uLastLogTS = 0;
{
LogRel(("AHCI ATA: LUN#%d: CD-ROM block number %Ld invalid (SEEK)\n", s->iLUN, (uint64_t)iATAPILBA));
uLastLogTS = RTTimeMilliTS();
}
break;
}
atapiCmdOK(s);
}
break;
case SCSI_START_STOP_UNIT:
{
int rc = VINF_SUCCESS;
{
case 0: /* 00 - Stop motor */
case 1: /* 01 - Start motor */
break;
case 2: /* 10 - Eject media */
/* This must be done from EMT. */
{
{
}
}
break;
case 3: /* 11 - Load media */
/** @todo rc = s->pDrvMount->pfnLoadMedia(s->pDrvMount) */
break;
}
if (RT_SUCCESS(rc))
atapiCmdOK(s);
else
}
break;
case SCSI_MECHANISM_STATUS:
{
ataStartTransfer(s, RT_MIN(cbMax, 8), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_MECHANISM_STATUS, true);
}
break;
case SCSI_READ_TOC_PMA_ATIP:
{
if (s->cNotifiedMediaChange > 0)
{
s->cNotifiedMediaChange-- ;
atapiCmdErrorSimple(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */
break;
}
{
break;
}
/* SCSI MMC-3 spec says format is at offset 2 (lower 4 bits),
* but Linux kernel uses offset 9 (topmost 2 bits). Hope that
* the other field is clear... */
switch (format)
{
case 0:
ataStartTransfer(s, cbMax, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_READ_TOC_NORMAL, true);
break;
case 1:
ataStartTransfer(s, RT_MIN(cbMax, 12), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_READ_TOC_MULTI, true);
break;
case 2:
ataStartTransfer(s, cbMax, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_READ_TOC_RAW, true);
break;
default:
break;
}
}
break;
case SCSI_READ_CAPACITY:
if (s->cNotifiedMediaChange > 0)
{
s->cNotifiedMediaChange-- ;
atapiCmdErrorSimple(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */
break;
}
{
break;
}
ataStartTransfer(s, 8, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_READ_CAPACITY, true);
break;
if (s->cNotifiedMediaChange > 0)
{
s->cNotifiedMediaChange-- ;
atapiCmdErrorSimple(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */
break;
}
{
break;
}
ataStartTransfer(s, RT_MIN(cbMax, 34), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_READ_DISC_INFORMATION, true);
break;
if (s->cNotifiedMediaChange > 0)
{
s->cNotifiedMediaChange-- ;
atapiCmdErrorSimple(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */
break;
}
{
break;
}
ataStartTransfer(s, RT_MIN(cbMax, 36), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_READ_TRACK_INFORMATION, true);
break;
case SCSI_GET_CONFIGURATION:
/* No media change stuff here, it can confuse Linux guests. */
ataStartTransfer(s, RT_MIN(cbMax, 32), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_GET_CONFIGURATION, true);
break;
case SCSI_INQUIRY:
ataStartTransfer(s, RT_MIN(cbMax, 36), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_INQUIRY, true);
break;
default:
break;
}
}
/*
*/
static void atapiParseCmdPassthrough(AHCIATADevState *s)
{
uint32_t cbTransfer = 0;
switch (pbPacket[0])
{
case SCSI_BLANK:
goto sendcmd;
case SCSI_CLOSE_TRACK_SESSION:
goto sendcmd;
case SCSI_ERASE_10:
goto sendcmd;
case SCSI_FORMAT_UNIT:
goto sendcmd;
case SCSI_GET_CONFIGURATION:
goto sendcmd;
{
ataStartTransfer(s, RT_MIN(cbTransfer, 8), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_GET_EVENT_STATUS_NOTIFICATION, true);
break;
}
goto sendcmd;
case SCSI_GET_PERFORMANCE:
goto sendcmd;
case SCSI_INQUIRY:
goto sendcmd;
case SCSI_LOAD_UNLOAD_MEDIUM:
goto sendcmd;
case SCSI_MECHANISM_STATUS:
goto sendcmd;
case SCSI_MODE_SELECT_10:
goto sendcmd;
case SCSI_MODE_SENSE_10:
goto sendcmd;
case SCSI_PAUSE_RESUME:
goto sendcmd;
case SCSI_PLAY_AUDIO_10:
goto sendcmd;
case SCSI_PLAY_AUDIO_12:
goto sendcmd;
case SCSI_PLAY_AUDIO_MSF:
goto sendcmd;
/** @todo do not forget to unlock when a VM is shut down */
goto sendcmd;
case SCSI_READ_10:
goto sendcmd;
case SCSI_READ_12:
goto sendcmd;
case SCSI_READ_BUFFER:
goto sendcmd;
goto sendcmd;
case SCSI_READ_CAPACITY:
cbTransfer = 8;
goto sendcmd;
case SCSI_READ_CD:
goto sendcmd;
case SCSI_READ_CD_MSF:
if (cSectors > 32)
cSectors = 32; /* Limit transfer size to 64~74K. Safety first. In any case this can only harm software doing CDDA extraction. */
goto sendcmd;
goto sendcmd;
case SCSI_READ_DVD_STRUCTURE:
goto sendcmd;
goto sendcmd;
case SCSI_READ_SUBCHANNEL:
goto sendcmd;
case SCSI_READ_TOC_PMA_ATIP:
goto sendcmd;
goto sendcmd;
case SCSI_REPAIR_TRACK:
goto sendcmd;
case SCSI_REPORT_KEY:
goto sendcmd;
case SCSI_REQUEST_SENSE:
{
ataStartTransfer(s, RT_MIN(cbTransfer, 18), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_REQUEST_SENSE, true);
break;
}
goto sendcmd;
case SCSI_RESERVE_TRACK:
goto sendcmd;
case SCSI_SCAN:
goto sendcmd;
case SCSI_SEEK_10:
goto sendcmd;
case SCSI_SEND_CUE_SHEET:
goto sendcmd;
case SCSI_SEND_DVD_STRUCTURE:
goto sendcmd;
case SCSI_SEND_EVENT:
goto sendcmd;
case SCSI_SEND_KEY:
goto sendcmd;
goto sendcmd;
case SCSI_SET_CD_SPEED:
goto sendcmd;
case SCSI_SET_READ_AHEAD:
goto sendcmd;
case SCSI_SET_STREAMING:
goto sendcmd;
case SCSI_START_STOP_UNIT:
goto sendcmd;
case SCSI_STOP_PLAY_SCAN:
goto sendcmd;
case SCSI_SYNCHRONIZE_CACHE:
goto sendcmd;
case SCSI_TEST_UNIT_READY:
goto sendcmd;
case SCSI_VERIFY_10:
goto sendcmd;
case SCSI_WRITE_10:
#if 0
/* The sector size is determined by the async I/O thread. */
s->cbATAPISector = 0;
/* Preliminary, will be corrected once the sector size is known. */
#else
#endif
goto sendcmd;
case SCSI_WRITE_12:
#if 0
/* The sector size is determined by the async I/O thread. */
s->cbATAPISector = 0;
/* Preliminary, will be corrected once the sector size is known. */
#else
#endif
goto sendcmd;
case SCSI_WRITE_AND_VERIFY_10:
/* The sector size is determined by the async I/O thread. */
s->cbATAPISector = 0;
/* Preliminary, will be corrected once the sector size is known. */
goto sendcmd;
case SCSI_WRITE_BUFFER:
{
case 0x04: /* download microcode */
case 0x05: /* download microcode and save */
case 0x06: /* download microcode with offsets */
case 0x07: /* download microcode with offsets and save */
case 0x0e: /* download microcode with offsets and defer activation */
case 0x0f: /* activate deferred microcode */
LogRel(("AHCI ATA: LUN#%d: CD-ROM passthrough command attempted to update firmware, blocked\n", s->iLUN));
break;
default:
goto sendcmd;
}
break;
case SCSI_REPORT_LUNS: /* Not part of MMC-3, but used by Windows. */
goto sendcmd;
case SCSI_REZERO_UNIT:
/* Obsolete command used by cdrecord. What else would one expect?
* This command is not sent to the drive, it is handled internally,
* as the Linux kernel doesn't like it (message "scsi: unknown
* opcode 0x01" in syslog) and replies with a sense code of 0,
* which sends cdrecord to an endless loop. */
break;
default:
break;
if (cbTransfer == 0)
ataStartTransfer(s, cbTransfer, uTxDir, ATAFN_BT_ATAPI_PASSTHROUGH_CMD, ATAFN_SS_ATAPI_PASSTHROUGH, true);
}
}
static void atapiParseCmd(AHCIATADevState *s)
{
#ifdef DEBUG
Log(("%s: LUN#%d DMA=%d CMD=%#04x \"%s\"\n", __FUNCTION__, s->iLUN, s->fDMA, pbPacket[0], SCSICmdText(pbPacket[0])));
#else /* !DEBUG */
#endif /* !DEBUG */
Log2(("%s: limit=%#x packet: %.*Rhxs\n", __FUNCTION__, s->uATARegLCyl | (s->uATARegHCyl << 8), ATAPI_PACKET_SIZE, pbPacket));
if (s->fATAPIPassthrough)
else
}
static bool ataPacketSS(AHCIATADevState *s)
{
s->uTxDir = PDMBLOCKTXDIR_NONE;
s->cbTotalTransfer = 0;
s->cbElementaryTransfer = 0;
atapiParseCmd(s);
return false;
}
#if 0
/**
* SCSI_GET_EVENT_STATUS_NOTIFICATION should return "medium removed" event
* from now on, regardless if there was a medium inserted or not.
*/
static void ataMediumRemoved(AHCIATADevState *s)
{
}
/**
* SCSI_GET_EVENT_STATUS_NOTIFICATION should return "medium inserted". If
* there was already a medium inserted, don't forget to send the "medium
* removed" event first.
*/
static void ataMediumInserted(AHCIATADevState *s)
{
do
{
switch (OldStatus)
{
/* no change, we will send "medium removed" + "medium inserted" */
break;
default:
break;
}
}
/**
* Called when a media is mounted.
*
* @param pInterface Pointer to the interface structure containing the called function pointer.
*/
{
/* Ignore the call if we're called while being attached. */
return;
LogRel(("ATA: LUN#%d: CD/DVD, total number of sectors %Ld, passthrough unchanged\n", pIf->iLUN, pIf->cTotalSectors));
else
/* Report media changed in TEST UNIT and other (probably incorrect) places. */
}
/**
* Called when a media is unmounted
* @param pInterface Pointer to the interface structure containing the called function pointer.
*/
{
pIf->cTotalSectors = 0;
/*
* Whatever I do, XP will not use the GET MEDIA STATUS nor the EVENT stuff.
* However, it will respond to TEST UNIT with a 0x6 0x28 (media changed) sense code.
* So, we'll give it 4 TEST UNIT command to catch up, two which the media is not
* present and 2 in which it is changed.
*/
}
#endif
static void ataPacketBT(AHCIATADevState *s)
{
s->cbElementaryTransfer = s->cbTotalTransfer;
}
static void ataResetDevice(AHCIATADevState *s)
{
s->cNotifiedMediaChange = 0;
ataUnsetIRQ(s);
s->uATARegSelect = 0x20;
ataSetSignature(s);
s->cbTotalTransfer = 0;
s->cbElementaryTransfer = 0;
s->iIOBufferPIODataStart = 0;
s->iIOBufferPIODataEnd = 0;
s->iBeginTransfer = ATAFN_BT_NULL;
s->iSourceSink = ATAFN_SS_NULL;
s->fATAPITransfer = false;
s->uATARegFeature = 0;
}
static bool ataExecuteDeviceDiagnosticSS(AHCIATADevState *s)
{
ataSetSignature(s);
if (s->fATAPI)
ataSetStatusValue(s, 0); /* NOTE: READY is _not_ set */
else
s->uATARegError = 0x01;
return false;
}
{
#ifdef DEBUG
#else /* !DEBUG */
#endif /* !DEBUG */
s->fLBA48 = false;
s->fDMA = false;
if (cmd == ATA_IDLE_IMMEDIATE)
{
/* Detect Linux timeout recovery, first tries IDLE IMMEDIATE (which
* would overwrite the failing command unfortunately), then RESET. */
if (s->u64CmdTS)
LogRel(("AHCI ATA: LUN#%d: IDLE IMMEDIATE, CmdIf=%#04x (%d usec ago)\n",
}
s->uATARegCommand = cmd;
switch (cmd)
{
case ATA_IDENTIFY_DEVICE:
else
{
if (s->fATAPI)
ataSetSignature(s);
ataCmdError(s, ABRT_ERR);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
}
break;
case ATA_RECALIBRATE:
ataCmdOK(s, ATA_STAT_SEEK);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
case ATA_SET_MULTIPLE_MODE:
if ( s->uATARegNSector != 0
&& ( s->uATARegNSector > ATA_MAX_MULT_SECTORS
{
ataCmdError(s, ABRT_ERR);
}
else
{
s->cMultSectors = s->uATARegNSector;
ataCmdOK(s, 0);
}
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
s->fLBA48 = true;
case ATA_READ_VERIFY_SECTORS:
/* do sector number check ? */
ataCmdOK(s, 0);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
case ATA_READ_SECTORS_EXT:
s->fLBA48 = true;
case ATA_READ_SECTORS:
if (!s->pDrvBlock)
goto abort_cmd;
s->cSectorsPerIRQ = 1;
ataStartTransfer(s, ataGetNSectors(s) * 512, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_READ_WRITE_SECTORS, ATAFN_SS_READ_SECTORS, false);
break;
case ATA_WRITE_SECTORS_EXT:
s->fLBA48 = true;
case ATA_WRITE_SECTORS:
s->cSectorsPerIRQ = 1;
ataStartTransfer(s, ataGetNSectors(s) * 512, PDMBLOCKTXDIR_TO_DEVICE, ATAFN_BT_READ_WRITE_SECTORS, ATAFN_SS_WRITE_SECTORS, false);
break;
case ATA_READ_MULTIPLE_EXT:
s->fLBA48 = true;
case ATA_READ_MULTIPLE:
if (!s->cMultSectors)
goto abort_cmd;
s->cSectorsPerIRQ = s->cMultSectors;
ataStartTransfer(s, ataGetNSectors(s) * 512, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_READ_WRITE_SECTORS, ATAFN_SS_READ_SECTORS, false);
break;
case ATA_WRITE_MULTIPLE_EXT:
s->fLBA48 = true;
case ATA_WRITE_MULTIPLE:
if (!s->cMultSectors)
goto abort_cmd;
s->cSectorsPerIRQ = s->cMultSectors;
ataStartTransfer(s, ataGetNSectors(s) * 512, PDMBLOCKTXDIR_TO_DEVICE, ATAFN_BT_READ_WRITE_SECTORS, ATAFN_SS_WRITE_SECTORS, false);
break;
case ATA_READ_DMA_EXT:
s->fLBA48 = true;
case ATA_READ_DMA:
if (!s->pDrvBlock)
goto abort_cmd;
s->fDMA = true;
ataStartTransfer(s, ataGetNSectors(s) * 512, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_READ_WRITE_SECTORS, ATAFN_SS_READ_SECTORS, false);
break;
case ATA_WRITE_DMA_EXT:
s->fLBA48 = true;
case ATA_WRITE_DMA:
if (!s->pDrvBlock)
goto abort_cmd;
s->fDMA = true;
ataStartTransfer(s, ataGetNSectors(s) * 512, PDMBLOCKTXDIR_TO_DEVICE, ATAFN_BT_READ_WRITE_SECTORS, ATAFN_SS_WRITE_SECTORS, false);
break;
s->fLBA48 = true;
ataCmdOK(s, 0);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
ataCmdOK(s, 0);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
case ATA_CHECK_POWER_MODE:
ataCmdOK(s, 0);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
case ATA_SET_FEATURES:
if (!s->pDrvBlock)
goto abort_cmd;
switch (s->uATARegFeature)
{
case 0x02: /* write cache enable */
ataCmdOK(s, ATA_STAT_SEEK);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
case 0xaa: /* read look-ahead enable */
ataCmdOK(s, ATA_STAT_SEEK);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
case 0x55: /* read look-ahead disable */
ataCmdOK(s, ATA_STAT_SEEK);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
case 0xcc: /* reverting to power-on defaults enable */
ataCmdOK(s, ATA_STAT_SEEK);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
case 0x66: /* reverting to power-on defaults disable */
ataCmdOK(s, ATA_STAT_SEEK);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
case 0x82: /* write cache disable */
* command MUST flush the write buffers to disc. */
break;
case 0x03: { /* set transfer mode */
switch (s->uATARegNSector & 0xf8)
{
case 0x00: /* PIO default */
case 0x08: /* PIO mode */
break;
case ATA_MODE_MDMA: /* MDMA mode */
s->uATATransferMode = (s->uATARegNSector & 0xf8) | RT_MIN(s->uATARegNSector & 0x07, ATA_MDMA_MODE_MAX);
break;
case ATA_MODE_UDMA: /* UDMA mode */
s->uATATransferMode = (s->uATARegNSector & 0xf8) | RT_MIN(s->uATARegNSector & 0x07, ATA_UDMA_MODE_MAX);
break;
default:
goto abort_cmd;
}
ataCmdOK(s, ATA_STAT_SEEK);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
}
default:
goto abort_cmd;
}
/*
* OS/2 workarond:
* The OS/2 IDE driver from MCP2 appears to rely on the feature register being
* reset here. According to the specification, this is a driver bug as the register
* contents are undefined after the call. This means we can just as well reset it.
*/
s->uATARegFeature = 0;
break;
case ATA_FLUSH_CACHE_EXT:
case ATA_FLUSH_CACHE:
goto abort_cmd;
break;
case ATA_STANDBY_IMMEDIATE:
ataCmdOK(s, 0);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
case ATA_IDLE_IMMEDIATE:
ataAbortCurrentCommand(s, false);
break;
/* ATAPI commands */
if (s->fATAPI)
else
{
ataCmdError(s, ABRT_ERR);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
}
break;
ataStartTransfer(s, 0, PDMBLOCKTXDIR_NONE, ATAFN_BT_NULL, ATAFN_SS_EXECUTE_DEVICE_DIAGNOSTIC, false);
break;
case ATA_DEVICE_RESET:
if (!s->fATAPI)
goto abort_cmd;
ataAbortCurrentCommand(s, true);
break;
case ATA_PACKET:
if (!s->fATAPI)
goto abort_cmd;
/* overlapping commands not supported */
if (s->uATARegFeature & 0x02)
goto abort_cmd;
ataStartTransfer(s, ATAPI_PACKET_SIZE, PDMBLOCKTXDIR_TO_DEVICE, ATAFN_BT_PACKET, ATAFN_SS_PACKET, false);
break;
default:
ataCmdError(s, ABRT_ERR);
ataSetIRQ(s); /* Shortcut, do not use AIO thread. */
break;
}
}
/**
* Waits for a particular async I/O thread to complete whatever it
* is doing at the moment.
*
* @returns true on success.
* @returns false when the thread is still processing.
* @param pThis Pointer to the controller data.
* @param cMillies How long to wait (total).
*/
{
bool fRc;
/* Hope for the simple way out... */
return true;
/*
* Have to wait. Do the setup while owning the mutex to avoid races.
*/
u64Start = RTTimeMilliTS();
for (;;)
{
if (fRc)
break;
break;
|| rc == VERR_TIMEOUT,
}
return fRc;
}
#endif /* IN_RING3 */
{
addr &= 7;
switch (addr)
{
case 0:
break;
case 1: /* feature register */
/* NOTE: data is written to the two drives */
break;
case 2: /* sector count */
break;
case 3: /* sector number */
break;
case 4: /* cylinder low */
break;
case 5: /* cylinder high */
break;
{
/* select another drive */
/* The IRQ line is multiplexed between the two drives, so
* update the state when switching to another drive. Only need
* to update interrupt line if it is enabled and there is a
* state change. */
{
{
Log2(("%s: LUN#%d asserting IRQ (drive select change)\n", __FUNCTION__, pCtl->aIfs[pCtl->iSelectedIf].iLUN));
/* The BMDMA unit unconditionally sets BM_STATUS_INT if
* the interrupt line is asserted. It monitors the line
* for a rising edge. */
else
}
else
{
Log2(("%s: LUN#%d deasserting IRQ (drive select change)\n", __FUNCTION__, pCtl->aIfs[pCtl->iSelectedIf].iLUN));
PDMDevHlpPCISetIrqNoWait(pDevIns, 0, 0);
else
}
}
}
break;
default:
case 7: /* command */
/* ignore commands to non existant slave */
break;
#ifndef IN_RING3
/* Don't do anything complicated in GC */
return VINF_IOM_HC_IOPORT_WRITE;
#else /* IN_RING3 */
#endif /* !IN_RING3 */
}
return VINF_SUCCESS;
}
{
bool fHOB;
switch (addr & 7)
{
case 0: /* data register */
val = 0xff;
break;
case 1: /* error register */
/* The ATA specification is very terse when it comes to specifying
* The error register (read-only) shares the register number with
* the feature register (write-only), so it seems that it's not
* necessary to support the usual HOB readback here. */
if (!s->pDrvBlock)
val = 0;
else
val = s->uATARegError;
break;
case 2: /* sector count */
if (!s->pDrvBlock)
val = 0;
else if (fHOB)
val = s->uATARegNSectorHOB;
else
val = s->uATARegNSector;
break;
case 3: /* sector number */
if (!s->pDrvBlock)
val = 0;
else if (fHOB)
val = s->uATARegSectorHOB;
else
val = s->uATARegSector;
break;
case 4: /* cylinder low */
if (!s->pDrvBlock)
val = 0;
else if (fHOB)
val = s->uATARegLCylHOB;
else
val = s->uATARegLCyl;
break;
case 5: /* cylinder high */
if (!s->pDrvBlock)
val = 0;
else if (fHOB)
val = s->uATARegHCylHOB;
else
val = s->uATARegHCyl;
break;
/* This register must always work as long as there is at least
* one drive attached to the controller. It is common between
* both drives anyway (completely identical content). */
val = 0;
else
val = s->uATARegSelect;
break;
default:
case 7: /* primary status */
{
/* Counter for number of busy status seen in GC in a row. */
static unsigned cBusy = 0;
if (!s->pDrvBlock)
val = 0;
else
val = s->uATARegStatus;
/* Give the async I/O thread an opportunity to make progress,
* don't let it starve by guests polling frequently. EMT has a
* lower priority than the async I/O thread, but sometimes the
* host OS doesn't care. With some guests we are only allowed to
* be busy for about 5 milliseconds in some situations. Note that
* this is no guarantee for any other VBox thread getting
* scheduled, so this just lowers the CPU load a bit when drives
* are busy. It cannot help with timing problems. */
if (val & ATA_STAT_BUSY)
{
#ifdef IN_RING3
cBusy = 0;
{
}
val = s->uATARegStatus;
#else /* !IN_RING3 */
/* Cannot yield CPU in guest context. And switching to host
* context for each and every busy status is too costly,
* especially on SMP systems where we don't gain much by
* yielding the CPU to someone else. */
if (++cBusy >= 20)
{
cBusy = 0;
return VINF_IOM_HC_IOPORT_READ;
}
#endif /* !IN_RING3 */
}
else
cBusy = 0;
ataUnsetIRQ(s);
break;
}
}
return VINF_SUCCESS;
}
{
val = 0;
else
val = s->uATARegStatus;
return val;
}
{
#ifndef IN_RING3
return VINF_IOM_HC_IOPORT_WRITE; /* The RESET stuff is too complicated for GC. */
#endif /* !IN_RING3 */
/* RESET is common for both drives attached to a controller. */
(val & ATA_DEVCTL_RESET))
{
#ifdef IN_RING3
/* Software RESET low to high */
LogRel(("ATA: Ctl: RESET, DevSel=%d AIOIf=%d CmdIf0=%#04x (%d usec ago) CmdIf1=%#04x (%d usec ago)\n",
/* Everything must be done after the reset flag is set, otherwise
* there are unavoidable races with the currently executing request
* (which might just finish in the mean time). */
pCtl->fChainedTransfer = false;
{
/* The following cannot be done using ataSetStatusValue() since the
* reset flag is already set, which suppresses all status changes. */
}
if (val & ATA_DEVCTL_HOB)
{
val &= ~ATA_DEVCTL_HOB;
}
#else /* !IN_RING3 */
AssertMsgFailed(("RESET handling is too complicated for GC\n"));
#endif /* IN_RING3 */
}
!(val & ATA_DEVCTL_RESET))
{
#ifdef IN_RING3
/* Software RESET high to low */
if (val & ATA_DEVCTL_HOB)
{
val &= ~ATA_DEVCTL_HOB;
}
#else /* !IN_RING3 */
AssertMsgFailed(("RESET handling is too complicated for GC\n"));
#endif /* IN_RING3 */
}
/* Change of interrupt disable flag. Update interrupt line if interrupt
* is pending on the current interface. */
{
if (!(val & ATA_DEVCTL_DISABLE_IRQ))
{
Log2(("%s: LUN#%d asserting IRQ (interrupt disable change)\n", __FUNCTION__, pCtl->aIfs[pCtl->iSelectedIf].iLUN));
/* The BMDMA unit unconditionally sets BM_STATUS_INT if the
* interrupt line is asserted. It monitors the line for a rising
* edge. */
else
}
else
{
Log2(("%s: LUN#%d deasserting IRQ (interrupt disable change)\n", __FUNCTION__, pCtl->aIfs[pCtl->iSelectedIf].iLUN));
else
}
}
if (val & ATA_DEVCTL_HOB)
return VINF_SUCCESS;
}
#ifdef IN_RING3
{
AHCIATADevState *s;
{
LogRel(("AHCI ATA: LUN#%d: %s data in the middle of a PIO transfer - VERY SLOW\n", s->iLUN, s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE ? "loading" : "storing"));
/* Any guest OS that triggers this case has a pathetic ATA driver.
* In a real system it would block the CPU via IORDY, here we do it
* very similarly by not continuing with the current instruction
if (s->iSourceSink != ATAFN_SS_NULL)
{
bool fRedo;
if (RT_UNLIKELY(fRedo))
return;
ataSetStatusValue(s, status);
s->iIOBufferCur = 0;
s->iIOBufferEnd = s->cbElementaryTransfer;
}
}
if (s->cbTotalTransfer)
{
if (s->fATAPITransfer)
s->cbElementaryTransfer = s->cbTotalTransfer;
Log2(("%s: %s tx_size=%d elem_tx_size=%d index=%d end=%d\n",
s->cbTotalTransfer, s->cbElementaryTransfer,
s->iIOBufferCur, s->iIOBufferEnd));
s->cbTotalTransfer -= s->cbElementaryTransfer;
s->iIOBufferCur += s->cbElementaryTransfer;
s->cbElementaryTransfer = s->cbTotalTransfer;
}
else
}
{
/* Do not interfere with RESET processing if the PIO transfer finishes
* while the RESET line is asserted. */
{
return;
}
if ( s->uTxDir == PDMBLOCKTXDIR_TO_DEVICE
|| ( s->iSourceSink != ATAFN_SS_NULL
&& s->iIOBufferCur >= s->iIOBufferEnd))
{
/* Need to continue the transfer in the async I/O thread. This is
* the case for write operations or generally for not yet finished
* transfers (some data might need to be read). */
}
else
{
/* Either everything finished (though some data might still be pending)
* or some data is pending before the next read is due. */
/* Continue a previously started transfer. */
if (s->cbTotalTransfer)
{
/* There is more to transfer, happens usually for large ATAPI
* reads - the protocol limits the chunk size to 65534 bytes. */
ataSetIRQ(s);
}
else
{
/* Finish PIO transfer. */
}
}
}
#endif /* IN_RING3 */
static int ataDataWrite(PAHCIATACONTROLLER pCtl, uint32_t addr, uint32_t cbSize, const uint8_t *pbBuf)
{
uint8_t *p;
if (s->iIOBufferPIODataStart < s->iIOBufferPIODataEnd)
{
#ifndef IN_RING3
/* All but the last transfer unit is simple enough for GC, but
* sending a request to the async IO thread is too complicated. */
{
s->iIOBufferPIODataStart += cbSize;
}
else
return VINF_IOM_HC_IOPORT_WRITE;
#else /* IN_RING3 */
s->iIOBufferPIODataStart += cbSize;
if (s->iIOBufferPIODataStart >= s->iIOBufferPIODataEnd)
ataPIOTransferFinish(pCtl, s);
#endif /* !IN_RING3 */
}
else
return VINF_SUCCESS;
}
{
uint8_t *p;
if (s->iIOBufferPIODataStart < s->iIOBufferPIODataEnd)
{
#ifndef IN_RING3
/* All but the last transfer unit is simple enough for GC, but
* sending a request to the async IO thread is too complicated. */
{
s->iIOBufferPIODataStart += cbSize;
}
else
return VINF_IOM_HC_IOPORT_READ;
#else /* IN_RING3 */
s->iIOBufferPIODataStart += cbSize;
if (s->iIOBufferPIODataStart >= s->iIOBufferPIODataEnd)
ataPIOTransferFinish(pCtl, s);
#endif /* !IN_RING3 */
}
else
{
}
return VINF_SUCCESS;
}
#ifdef IN_RING3
static void ataDMATransferStop(AHCIATADevState *s)
{
s->cbTotalTransfer = 0;
s->cbElementaryTransfer = 0;
s->iBeginTransfer = ATAFN_BT_NULL;
s->iSourceSink = ATAFN_SS_NULL;
}
/**
* has to be redone or a RESET comes in between). Unlike the PIO counterpart
* this function cannot handle empty transfers.
*
* @param pCtl Controller for which to perform the transfer.
*/
{
bool fRedo;
bool fLastDesc = false;
Assert(s->cbTotalTransfer);
iIOBufferCur = s->iIOBufferCur;
iIOBufferEnd = s->iIOBufferEnd;
/* The DMA loop is designed to hold the lock only when absolutely
* necessary. This avoids long freezes should the guest access the
* ATA registers etc. for some reason. */
Log2(("%s: %s tx_size=%d elem_tx_size=%d index=%d end=%d\n",
{
if (RT_UNLIKELY(fRedo))
{
}
else
{
cbBuffer &= 0xfffe;
if (cbBuffer == 0)
cbBuffer = 0x10000;
if (cbBuffer > cbTotalTransfer)
}
{
{
if (uTxDir == PDMBLOCKTXDIR_FROM_DEVICE)
else
iIOBufferCur += dmalen;
}
if ( iIOBufferCur == iIOBufferEnd
{
{
}
/* The RESET handler could have cleared the DMA transfer
* state (since we didn't hold the lock until just now
* the guest can continue in parallel). If so, the state
* is already set up so the loop is exited immediately. */
if (s->iSourceSink != ATAFN_SS_NULL)
{
s->iIOBufferCur = iIOBufferCur;
s->iIOBufferEnd = iIOBufferEnd;
if (RT_UNLIKELY(fRedo))
{
}
else
{
iIOBufferCur = 0;
}
}
else
{
/* This forces the loop to exit immediately. */
}
if (RT_UNLIKELY(fRedo))
break;
}
}
if (RT_UNLIKELY(fRedo))
break;
/* end of transfer */
if (!cbTotalTransfer || fLastDesc)
break;
{
}
{
/* This forces the loop to exit immediately. */
}
}
{
}
if (RT_UNLIKELY(fRedo))
return;
if (fLastDesc)
s->iIOBufferCur = iIOBufferCur;
s->iIOBufferEnd = iIOBufferEnd;
}
/**
* Suspend I/O operations on a controller. Also suspends EMT, because it's
* waiting for I/O to make progress. The next attempt to perform an I/O
* operation will be made when EMT is resumed up again (as the resume
* callback below restarts I/O).
*
* @param pCtl Controller for which to suspend I/O.
*/
{
int rc;
}
/**
* Signal ataWaitForAsyncIOIsIdle that we're idle (if we actually are).
*
* @param pCtl The controller.
*/
{
/*
* Take the mutex here and recheck the idle indicator as there might be
* interesting races, like in the ataReset code.
*/
if ( pCtl->fSignalIdle
}
/** Asynch I/O thread for an interface. Once upon a time this was readable
* code with several loops and a different semaphore for each purpose. But
* then came the "how can one save the state in the middle of a PIO transfer"
* question. The solution was to use an ASM, which is what's there now. */
{
const AHCIATARequest *pReq;
int rc = VINF_SUCCESS;
AHCIATADevState *s;
pCtl->fChainedTransfer = false;
{
/* Keep this thread from doing anything as long as EMT is suspended. */
{
if (pCtl->fSignalIdle)
break;
}
/* Wait for work. */
{
if (pCtl->fSignalIdle)
break;
}
continue;
{
/* The new state is not the state that was expected by the normal
* really strange going on. */
{
}
AssertReleaseMsg(ReqType == AHCIATA_AIO_RESET_ASSERTED || ReqType == AHCIATA_AIO_RESET_CLEARED || ReqType == AHCIATA_AIO_ABORT || pCtl->uAsyncIOState == ReqType, ("I/O state inconsistent: state=%d request=%d\n", pCtl->uAsyncIOState, ReqType));
}
/* Do our work. */
{
}
{
u64TS = RTTimeNanoTS();
#if defined(DEBUG) || defined(VBOX_WITH_STATISTICS)
#endif /* DEBUG || VBOX_WITH_STATISTICS */
}
switch (ReqType)
{
case AHCIATA_AIO_NEW:
s->iIOBufferEnd = 0;
if (s->fATAPI)
{
if (pCtl->fChainedTransfer)
{
/* Only count the actual transfers, not the PIO
* transfer of the ATAPI command bytes. */
if (s->fDMA)
else
}
}
else
{
if (s->fDMA)
else
}
pCtl->fChainedTransfer = false;
if (s->iBeginTransfer != ATAFN_BT_NULL)
{
g_apfnBeginTransFuncs[s->iBeginTransfer](s);
s->iBeginTransfer = ATAFN_BT_NULL;
if (s->uTxDir != PDMBLOCKTXDIR_FROM_DEVICE)
s->iIOBufferEnd = s->cbElementaryTransfer;
}
else
{
s->cbElementaryTransfer = s->cbTotalTransfer;
s->iIOBufferEnd = s->cbTotalTransfer;
}
s->iIOBufferCur = 0;
if (s->uTxDir != PDMBLOCKTXDIR_TO_DEVICE)
{
if (s->iSourceSink != ATAFN_SS_NULL)
{
bool fRedo;
if (RT_UNLIKELY(fRedo))
{
/* Operation failed at the initial transfer, restart
* everything from scratch by resending the current
* request. Occurs very rarely, not worth optimizing. */
break;
}
}
else
ataCmdOK(s, 0);
s->iIOBufferEnd = s->cbElementaryTransfer;
}
/* Do not go into the transfer phase if RESET is asserted.
* The CritSect is released while waiting for the host OS
* to finish the I/O, thus RESET is possible here. Most
* important: do not change uAsyncIOState. */
break;
if (s->fDMA)
{
if (s->cbTotalTransfer)
{
ataSetStatus(s, ATA_STAT_DRQ);
/* If BMDMA is already started, do the transfer now. */
{
Log2(("%s: Ctl: message to async I/O thread, continuing DMA transfer immediately\n", __FUNCTION__));
}
}
else
{
Assert(s->uTxDir == PDMBLOCKTXDIR_NONE); /* Any transfer which has an initial transfer size of 0 must be marked as such. */
/* Finish DMA transfer. */
ataSetIRQ(s);
}
}
else
{
if (s->cbTotalTransfer)
{
ataSetIRQ(s);
{
/* Write operations and not yet finished transfers
* must be completed in the async I/O thread. */
}
else
{
/* Finished read operation can be handled inline
* in the end of PIO transfer handling code. Linux
* depends on this, as it waits only briefly for
* devices to become ready after incoming data
* transfer. Cannot find anything in the ATA spec
* that backs this assumption, but as all kernels
* are affected (though most of the time it does
* not cause any harm) this must work. */
}
}
else
{
Assert(s->uTxDir == PDMBLOCKTXDIR_NONE); /* Any transfer which has an initial transfer size of 0 must be marked as such. */
/* Finish PIO transfer. */
if (!s->fATAPITransfer)
ataSetIRQ(s);
}
}
break;
case AHCIATA_AIO_DMA:
{
s = &pCtl->aIfs[pCtl->iAIOIf]; /* Do not remove or there's an instant crash after loading the saved state */
ATAFNSS iOriginalSourceSink = (ATAFNSS)s->iSourceSink; /* Used by the hack below, but gets reset by then. */
if (s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE)
else
{
/* The specs say that the descriptor table must not cross a
* 4K boundary. */
}
{
LogRel(("ATA: Ctl: redo DMA operation\n"));
break;
}
/* The infamous delay IRQ hack. */
&& s->cbTotalTransfer == 0
&& pCtl->DelayIRQMillies)
{
/* Delay IRQ for writing. Required to get the Win2K
* installation work reliably (otherwise it crashes,
* usually during component install). So far no better
* solution has been found. */
}
if (s->fATAPITransfer)
{
s->fATAPITransfer = false;
}
ataSetIRQ(s);
break;
}
case AHCIATA_AIO_PIO:
s = &pCtl->aIfs[pCtl->iAIOIf]; /* Do not remove or there's an instant crash after loading the saved state */
if (s->iSourceSink != ATAFN_SS_NULL)
{
bool fRedo;
if (RT_UNLIKELY(fRedo))
{
LogRel(("ATA: Ctl#%d: redo PIO operation\n"));
break;
}
s->iIOBufferCur = 0;
s->iIOBufferEnd = s->cbElementaryTransfer;
}
else
{
/* Continue a previously started transfer. */
}
/* It is possible that the drives on this controller get RESET
* the case, don't restart the transfer and don't finish it the
* usual way. RESET handling took care of all that already.
* Most important: do not change uAsyncIOState. */
break;
if (s->cbTotalTransfer)
{
ataSetIRQ(s);
{
/* Write operations and not yet finished transfers
* must be completed in the async I/O thread. */
}
else
{
/* Finished read operation can be handled inline
* in the end of PIO transfer handling code. Linux
* depends on this, as it waits only briefly for
* devices to become ready after incoming data
* transfer. Cannot find anything in the ATA spec
* that backs this assumption, but as all kernels
* are affected (though most of the time it does
* not cause any harm) this must work. */
}
}
else
{
/* Finish PIO transfer. */
if ( !pCtl->fChainedTransfer
&& !s->fATAPITransfer
&& s->uTxDir != PDMBLOCKTXDIR_FROM_DEVICE)
{
ataSetIRQ(s);
}
}
break;
/* Do not change the DMA registers, they are not affected by the
* ATA controller reset logic. It should be sufficient to issue a
* new command, which is now possible as the state is cleared. */
break;
LogRel(("ATA: Ctl: finished processing RESET\n"));
{
else
}
break;
case AHCIATA_AIO_ABORT:
/* Abort the current command only if it operates on the same interface. */
{
/* Do not change the DMA registers, they are not affected by the
* ATA controller reset logic. It should be sufficient to issue a
* new command, which is now possible as the state is cleared. */
if (pReq->u.a.fResetDrive)
{
ataResetDevice(s);
}
else
{
ataSetIRQ(s);
}
}
break;
default:
}
{
#if defined(DEBUG) || defined(VBOX_WITH_STATISTICS)
#endif /* DEBUG || VBOX_WITH_STATISTICS */
Log(("%s: Ctl: LUN#%d finished I/O transaction in %d microseconds\n", __FUNCTION__, pCtl->aIfs[pCtl->iAIOIf].iLUN, (uint32_t)(uWait)));
/* Mark command as finished. */
/*
* Release logging of command execution times depends on the
* spin up time etc.) so the threshold is different.
*/
{
{
/*
* Command took longer than 8 seconds. This is close
* enough or over the guest's command timeout, so place
* an entry in the release log to allow tracking such
* timing errors (which are often caused by the host).
*/
LogRel(("AHCI ATA: execution time for ATA command %#04x was %d seconds\n", pCtl->aIfs[pCtl->iAIOIf].uATARegCommand, uWait / (1000 * 1000)));
}
}
else
{
{
/*
* Command took longer than 20 seconds. This is close
* enough or over the guest's command timeout, so place
* an entry in the release log to allow tracking such
* timing errors (which are often caused by the host).
*/
LogRel(("AHCI ATA: execution time for ATAPI command %#04x was %d seconds\n", pCtl->aIfs[pCtl->iAIOIf].aATAPICmd[0], uWait / (1000 * 1000)));
}
}
#if defined(DEBUG) || defined(VBOX_WITH_STATISTICS)
#endif /* DEBUG || VBOX_WITH_STATISTICS */
}
}
/* Signal the ultimate idleness. */
/* Do not destroy request mutex yet, still needed for proper shutdown. */
return rc;
}
#endif /* IN_RING3 */
{
return val;
}
{
if (!(val & BM_CMD_START))
{
}
else
{
#ifdef IN_RING3
/* Check whether the guest OS wants to change DMA direction in
* mid-flight. Not allowed, according to the AHCI specs. */
/* Do not continue DMA transfers while the RESET line is asserted. */
{
return;
}
/* Do not start DMA transfers if there's a PIO transfer going on. */
return;
{
}
#else /* !IN_RING3 */
AssertMsgFailed(("DMA START handling is too complicated for GC\n"));
#endif /* IN_RING3 */
}
}
{
return val;
}
{
}
{
return val;
}
{
}
{
}
{
}
/**
* Port I/O Handler for bus master DMA IN operations.
* @see FNIOMIOPORTIN for details.
*/
int ataControllerBMDMAIOPortRead(PAHCIATACONTROLLER pCtl, RTIOPORT Port, uint32_t *pu32, unsigned cb)
{
int rc;
if (rc != VINF_SUCCESS)
return rc;
{
default:
return VERR_IOM_IOPORT_UNUSED;
}
return rc;
}
/**
* Port I/O Handler for bus master DMA OUT operations.
* @see FNIOMIOPORTOUT for details.
*/
int ataControllerBMDMAIOPortWrite(PAHCIATACONTROLLER pCtl, RTIOPORT Port, uint32_t u32, unsigned cb)
{
int rc;
if (rc != VINF_SUCCESS)
return rc;
{
case VAL(0, 1):
#ifndef IN_RING3
if (u32 & BM_CMD_START)
{
break;
}
#endif /* !IN_RING3 */
break;
default: AssertMsgFailed(("%s: Unsupported write to port %x size=%d val=%x\n", __FUNCTION__, Port, cb, u32)); break;
}
return rc;
}
#ifdef IN_RING3
#if 0
/**
* Callback function for mapping an PCI I/O region.
*
* @return VBox status code.
* @param pPciDev Pointer to PCI device. Use pPciDev->pDevIns to get the device instance.
* @param iRegion The region number.
* @param GCPhysAddress Physical address of the region. If iType is PCI_ADDRESS_SPACE_IO, this is an
* I/O port, else it's a physical address.
* This address is *NOT* relative to pci_mem_base like earlier!
* @param enmType One of the PCI_ADDRESS_SPACE_* values.
*/
static DECLCALLBACK(int) ataBMDMAIORangeMap(PPCIDEVICE pPciDev, /*unsigned*/ int iRegion, RTGCPHYS GCPhysAddress, uint32_t cb, PCIADDRESSSPACE enmType)
{
int rc = VINF_SUCCESS;
AssertMsg(RT_ALIGN(GCPhysAddress, 8) == GCPhysAddress, ("Expected 8 byte alignment. GCPhysAddress=%#x\n", GCPhysAddress));
/* Register the port range. */
{
if (pThis->fGCEnabled)
{
}
if (pThis->fR0Enabled)
{
}
}
return rc;
}
#endif
/**
* Reset the controller to an intial state.
*
* @returns VBox status.
* @param pDevIns The device instance data.
*/
{
pCtl->iSelectedIf = 0;
/* Report that both drives present on the bus are in DMA mode. This
* pretends that there is a BIOS that has set it up. Normal reset
* default is 0x00. */
AssertReleaseMsgFailed(("Async I/O thread busy after reset\n"));
}
#if 0
/* -=-=-=-=-=- AHCIATADevState::IBase -=-=-=-=-=- */
/**
* Queries an interface to the driver.
*
* @returns Pointer to interface.
* @returns NULL if the interface was not supported by the device.
* @param pInterface Pointer to AHCIATADevState::IBase.
* @param enmInterface The requested interface identification.
*/
{
switch (enmInterface)
{
case PDMINTERFACE_BASE:
case PDMINTERFACE_BLOCK_PORT:
return &pIf->IMountNotify;
default:
return NULL;
}
}
#endif
#endif /* IN_RING3 */
/* -=-=-=-=-=- Wrappers -=-=-=-=-=- */
/**
* Port I/O Handler for primary port range OUT operations.
* @see FNIOMIOPORTOUT for details.
*/
{
int rc = VINF_SUCCESS;
if (rc != VINF_SUCCESS)
return rc;
if (cb == 1)
{
}
else
return rc;
}
/**
* Port I/O Handler for primary port range IN operations.
* @see FNIOMIOPORTIN for details.
*/
{
int rc = VINF_SUCCESS;
if (rc != VINF_SUCCESS)
return rc;
if (cb == 1)
{
}
{
if (cb == 2)
*pu32 &= 0xffff;
}
else
{
}
return rc;
}
#ifndef IN_RING0 /** @todo do this in ring-0 as well. */
/**
* Port I/O Handler for primary port range IN string operations.
* @see FNIOMIOPORTINSTRING for details.
*/
int ataControllerIOPortReadStr1(PAHCIATACONTROLLER pCtl, RTIOPORT Port, RTGCPTR *pGCPtrDst, PRTGCUINTREG pcTransfer, unsigned cb)
{
if (rc != VINF_SUCCESS)
return rc;
{
#ifndef IN_RING3
/* The last transfer unit cannot be handled in GC, as it involves thread communication. */
#endif /* !IN_RING3 */
/* Do not handle the dummy transfer stuff here, leave it to the single-word transfers.
* They are not performance-critical and generally shouldn't occur at all. */
if (cTransAvailable > cTransfer)
rc = PGMPhysSimpleDirtyWriteGCPtr(PDMDevHlpGetVMCPU(pDevIns), GCDst, s->CTX_SUFF(pbIOBuffer) + s->iIOBufferPIODataStart, cbTransfer);
if (cbTransfer)
Log3(("%s: addr=%#x val=%.*Rhxs\n", __FUNCTION__, Port, cbTransfer, s->CTX_SUFF(pbIOBuffer) + s->iIOBufferPIODataStart));
s->iIOBufferPIODataStart += cbTransfer;
#ifdef IN_RING3
if (s->iIOBufferPIODataStart >= s->iIOBufferPIODataEnd)
ataPIOTransferFinish(pCtl, s);
#endif /* IN_RING3 */
}
return rc;
}
/**
* Port I/O Handler for primary port range OUT string operations.
* @see FNIOMIOPORTOUTSTRING for details.
*/
int ataControllerIOPortWriteStr1(PAHCIATACONTROLLER pCtl, RTIOPORT Port, RTGCPTR *pGCPtrSrc, PRTGCUINTREG pcTransfer, unsigned cb)
{
if (rc != VINF_SUCCESS)
return rc;
{
#ifndef IN_RING3
/* The last transfer unit cannot be handled in GC, as it involves thread communication. */
#endif /* !IN_RING3 */
/* Do not handle the dummy transfer stuff here, leave it to the single-word transfers.
* They are not performance-critical and generally shouldn't occur at all. */
if (cTransAvailable > cTransfer)
rc = PGMPhysSimpleReadGCPtr(PDMDevHlpGetVMCPU(pDevIns), s->CTX_SUFF(pbIOBuffer) + s->iIOBufferPIODataStart, GCSrc, cbTransfer);
if (cbTransfer)
Log3(("%s: addr=%#x val=%.*Rhxs\n", __FUNCTION__, Port, cbTransfer, s->CTX_SUFF(pbIOBuffer) + s->iIOBufferPIODataStart));
s->iIOBufferPIODataStart += cbTransfer;
#ifdef IN_RING3
if (s->iIOBufferPIODataStart >= s->iIOBufferPIODataEnd)
ataPIOTransferFinish(pCtl, s);
#endif /* IN_RING3 */
}
return rc;
}
#endif /* !IN_RING0 */
/**
* Port I/O Handler for secondary port range OUT operations.
* @see FNIOMIOPORTOUT for details.
*/
{
int rc;
if (cb != 1)
return VINF_SUCCESS;
if (rc != VINF_SUCCESS)
return rc;
return rc;
}
/**
* Port I/O Handler for secondary port range IN operations.
* @see FNIOMIOPORTIN for details.
*/
{
int rc;
if (cb != 1)
return VERR_IOM_IOPORT_UNUSED;
if (rc != VINF_SUCCESS)
return rc;
return VINF_SUCCESS;
}
#ifdef IN_RING3
/**
* Waits for all async I/O threads to complete whatever they
* are doing at the moment.
*
* @returns true on success.
* @returns false when one or more threads is still processing.
* @param pThis Pointer to the instance data.
* @param cMillies How long to wait (total).
*/
{
bool fAllIdle = false;
/*
* Wait for any pending async operation to finish
*/
u64Start = RTTimeMilliTS();
for (;;)
{
/* Check all async I/O threads. */
fAllIdle = true;
if (!fAllIdle)
break;
if ( fAllIdle
break;
/* Sleep for a bit. */
RTThreadSleep(100);
}
if (!fAllIdle)
LogRel(("ATA: Ctl is still executing, DevSel=%d AIOIf=%d CmdIf0=%#04x CmdIf1=%#04x\n",
return fAllIdle;
}
{
if (s->pbIOBufferR3)
}
/**
* @copydoc FNPDMDEVRELOCATE
*/
{
}
/**
* Destroy a controller instance.
*
* Most VM resources are freed by the VM. This callback is provided so that any non-VM
* resources can be freed correctly.
*
* @param pCtl The controller instance.
*/
{
int rc;
/*
* Terminate the async helper thread and wait for it to finish up.
*/
{
if (RT_SUCCESS(rc))
else
LogRel(("PIIX3 ATA Dtor: Ctl/irq=%u is still executing, DevSel=%d AIOIf=%d CmdIf0=%#04x CmdIf1=%#04x rc=%Rrc\n",
}
/*
* Now the request mutexes are no longer needed. Free resources.
*/
{
}
{
}
{
}
/* try one final time */
{
if (RT_SUCCESS(rc))
{
}
}
return VINF_SUCCESS;
}
#if 0
/**
* Detach notification.
*
* The DVD drive has been unplugged.
*
* @param pDevIns The device instance.
* @param iLUN The logical unit which is being detached.
*/
{
unsigned iController;
unsigned iInterface;
/*
* Locate the controller and stuff.
*/
AssertReleaseMsg(iController < RT_ELEMENTS(pThis->aCts), ("iController=%d iLUN=%d\n", iController, iLUN));
/*
* Zero some important members.
*/
/*
* Just in case there was a medium inserted. Only required when attached to a physical drive
* in passthrough mode as in virtual ATAPI mode we've got an unmount notification.
*/
if (pIf->fATAPIPassthrough)
}
#endif
/**
* Configure a LUN.
*
* @returns VBox status code.
* @param pDevIns The device instance.
* @param pIf The ATA unit state.
*/
{
int rc;
/*
* Query Block, Bios and Mount interfaces.
*/
{
return VERR_PDM_MISSING_INTERFACE;
}
/** @todo implement the BIOS invisible code path. */
pIf->pDrvBlockBios = (PDMIBLOCKBIOS *)pIf->pDrvBase->pfnQueryInterface(pIf->pDrvBase, PDMINTERFACE_BLOCK_BIOS);
if (!pIf->pDrvBlockBios)
{
return VERR_PDM_MISSING_INTERFACE;
}
/*
* Validate type.
*/
if ( enmType != PDMBLOCKTYPE_CDROM
&& enmType != PDMBLOCKTYPE_DVD
&& enmType != PDMBLOCKTYPE_HARD_DISK)
{
AssertMsgFailed(("Configuration error: LUN#%d isn't a disk or cd/dvd-rom. enmType=%d\n", pIf->iLUN, enmType));
return VERR_PDM_UNSUPPORTED_BLOCK_TYPE;
}
if ( ( enmType == PDMBLOCKTYPE_DVD
|| enmType == PDMBLOCKTYPE_CDROM)
{
AssertMsgFailed(("Internal error: cdrom without a mountable interface, WTF???!\n"));
return VERR_INTERNAL_ERROR;
}
/*
* Allocate I/O buffer.
*/
if (pIf->cbIOBuffer)
{
/* Buffer is (probably) already allocated. Validate the fields,
* because memory corruption can also overwrite pIf->cbIOBuffer. */
else
}
else
{
else
rc = MMR3HyperAllocOnceNoRel(pVM, pIf->cbIOBuffer, 0, MM_TAG_PDM_DEVICE_USER, (void **)&pIf->pbIOBufferR3);
if (RT_FAILURE(rc))
return VERR_NO_MEMORY;
}
/*
*/
{
LogRel(("ATA: LUN#%d: CD/DVD, total number of sectors %Ld, passthrough %s\n", pIf->iLUN, pIf->cTotalSectors, (pIf->fATAPIPassthrough ? "enabled" : "disabled")));
}
else
{
&pIf->PCHSGeometry);
if (rc == VERR_PDM_MEDIA_NOT_MOUNTED)
{
}
else if (rc == VERR_PDM_GEOMETRY_NOT_SET)
{
rc = VINF_SUCCESS;
}
)
{
/* Set the disk geometry information. */
&pIf->PCHSGeometry);
}
LogRel(("AHCI ATA: LUN#%d: disk, PCHS=%u/%u/%u, total number of sectors %Ld\n", pIf->iLUN, pIf->PCHSGeometry.cCylinders, pIf->PCHSGeometry.cHeads, pIf->PCHSGeometry.cSectors, pIf->cTotalSectors));
}
return VINF_SUCCESS;
}
#if 0
/**
* Attach command.
*
* This is called when we change block driver for the DVD drive.
*
* @returns VBox status code.
* @param pDevIns The device instance.
* @param iLUN The logical unit which is being detached.
*/
{
int rc;
unsigned iController;
unsigned iInterface;
/*
* Locate the controller and stuff.
*/
AssertReleaseMsg(iController < RT_ELEMENTS(pThis->aCts), ("iController=%d iLUN=%d\n", iController, iLUN));
/* the usual paranoia */
/*
* Try attach the block device and get the interfaces,
* required as well as optional.
*/
if (RT_SUCCESS(rc))
{
/*
* In case there is a new medium inserted. In virtual ATAPI mode we get an mount
* notification.
*/
if (pIf->fATAPIPassthrough)
}
else
if (RT_FAILURE(rc))
{
}
return rc;
}
#endif
/**
* Suspend notification.
*
* @returns VBox status.
* @param pDevIns The device instance data.
*/
{
AssertMsgFailed(("Async I/O didn't stop in 20 seconds!\n"));
return;
}
/**
* Resume notification.
*
* @returns VBox status.
* @param pDevIns The device instance data.
*/
{
int rc;
{
}
return;
}
/**
* Power Off notification.
*
* @returns VBox status.
* @param pCtl The controller instance.
*/
{
AssertMsgFailed(("Async I/O didn't stop in 20 seconds!\n"));
return;
}
/**
* Prepare state save and load operation.
*
* @returns VBox status code.
* @param pDevIns Device instance of the device which registered the data unit.
* @param pSSM SSM operation handle.
*/
{
/* sanity - the suspend notification will wait on the async stuff. */
if (!ataAsyncIOIsIdle(pCtl, false))
return VERR_SSM_IDE_ASYNC_TIMEOUT;
return VINF_SUCCESS;
}
/**
* Prepare state save operation.
*
* @returns VBox status code.
* @param pCtl The controller instance.
* @param pSSM SSM operation handle.
*/
{
return ataSaveLoadPrep(pCtl);
}
/**
* Prepare state load operation.
*
* @returns VBox status code.
* @param pCtl The controller instance.
* @param pSSM SSM operation handle.
*/
{
return ataSaveLoadPrep(pCtl);
}
/**
* Saves a state of the ATA device.
*
* @returns VBox status code.
* @param pCtl Controller instance.
* @param pSSM The handle to save the state to.
*/
{
{
else
}
}
/**
* Loads a saved ATA device state.
*
* @returns VBox status code.
* @param pDevIns The device instance.
* @param pSSM The handle to the saved state.
*/
{
int rc;
/* Test for correct version. */
{
}
/* integrity check */
if (!ataAsyncIOIsIdle(pCtl, false))
{
AssertMsgFailed(("Async I/O for controller is active\n"));
}
{
{
}
else
{
}
/** @todo triple-check this hack after passthrough is working */
else
{
else
{
LogRel(("ATA: No buffer for %d\n", j));
/* skip the buffer if we're loading for the debugger / animator. */
while (cbLeft-- > 0)
}
}
else
}
if (RT_FAILURE(rc))
return rc;
if (u32 != ~0U)
{
return rc;
}
return VINF_SUCCESS;
}
DECLCALLBACK(int) ataControllerInit(PPDMDEVINS pDevIns, PAHCIATACONTROLLER pCtl, PPDMIBASE pDrvBaseMaster, PPDMIBASE pDrvBaseSlave,
{
int rc;
{
}
/* Initialize per-controller critical section */
if (RT_FAILURE(rc))
/*
* Attach the units.
*/
uint32_t cbTotalBuffer = 0;
/*
* Start the worker thread.
*/
Assert(pCtl->AsyncIOThread != NIL_RTTHREAD && pCtl->AsyncIOSem != NIL_RTSEMEVENT && pCtl->SuspendIOSem != NIL_RTSEMEVENT && pCtl->AsyncIORequestMutex != NIL_RTSEMMUTEX);
Log(("%s: controller AIO thread id %#x; sem %p susp_sem %p mutex %p\n", __FUNCTION__, pCtl->AsyncIOThread, pCtl->AsyncIOSem, pCtl->SuspendIOSem, pCtl->AsyncIORequestMutex));
{
/*
* Try attach the block device and get the interfaces,
* required as well as optional.
*/
#if 0
if (RT_SUCCESS(rc))
#endif
else
{
pIf->cbIOBuffer = 0;
}
}
/*
* Initialize the device state.
*/
return VINF_SUCCESS;
}
#endif /* IN_RING3 */
#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */