/** @file * * VBox storage devices: * ATA/ATAPI controller device (disk and cdrom). */ /* * Copyright (C) 2006 InnoTek Systemberatung GmbH * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file 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 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. * * If you received this file as part of a commercial VirtualBox * distribution, then only the terms of your commercial VirtualBox * license agreement apply instead of the previous paragraph. */ /******************************************************************************* * Header Files * *******************************************************************************/ #define LOG_GROUP LOG_GROUP_DEV_IDE #include #include #include #include #include #include #ifdef IN_RING3 # include # include # include # include # include #endif /* IN_RING3 */ #include #include #include #include #include #include #include "Builtins.h" #include "PIIX3ATABmDma.h" #include "ide.h" /** * Maximum number of sectors to transfer in a READ/WRITE MULTIPLE request. * Set to 1 to disable multi-sector read support. According to the ATA * specification this must be a power of 2 and it must fit in an 8 bit * value. Thus the only valid values are 1, 2, 4, 8, 16, 32, 64 and 128. */ #define ATA_MAX_MULT_SECTORS 128 /** * Fastest PIO mode supported by the drive. */ #define ATA_PIO_MODE_MAX 4 /** * Fastest MDMA mode supported by the drive. */ #define ATA_MDMA_MODE_MAX 2 /** * Fastest UDMA mode supported by the drive. */ #define ATA_UDMA_MODE_MAX 6 /** * The SSM saved state version. */ #define ATA_SAVED_STATE_VERSION 15 /** The maximum number of release log entries per device. */ #define MAX_LOG_REL_ERRORS 1024 typedef struct ATADevState { /** Flag indicating whether the current command uses LBA48 mode. */ bool fLBA48; /** Flag indicating whether this drive implements the ATAPI command set. */ bool fATAPI; /** Set if this interface has asserted the IRQ. */ bool fIrqPending; /** Currently configured number of sectors in a multi-sector transfer. */ uint8_t cMultSectors; /** LCHS disk geometry. */ uint32_t cCHSCylinders, cCHSHeads, cCHSSectors; /** Total number of sectors on this disk. */ uint64_t cTotalSectors; /** Number of sectors to transfer per IRQ. */ uint32_t cSectorsPerIRQ; /** ATA/ATAPI register 1: feature (write-only). */ uint8_t uATARegFeature; /** ATA/ATAPI register 1: feature, high order byte. */ uint8_t uATARegFeatureHOB; /** ATA/ATAPI register 1: error (read-only). */ uint8_t uATARegError; /** ATA/ATAPI register 2: sector count (read/write). */ uint8_t uATARegNSector; /** ATA/ATAPI register 2: sector count, high order byte. */ uint8_t uATARegNSectorHOB; /** ATA/ATAPI register 3: sector (read/write). */ uint8_t uATARegSector; /** ATA/ATAPI register 3: sector, high order byte. */ uint8_t uATARegSectorHOB; /** ATA/ATAPI register 4: cylinder low (read/write). */ uint8_t uATARegLCyl; /** ATA/ATAPI register 4: cylinder low, high order byte. */ uint8_t uATARegLCylHOB; /** ATA/ATAPI register 5: cylinder high (read/write). */ uint8_t uATARegHCyl; /** ATA/ATAPI register 5: cylinder high, high order byte. */ uint8_t uATARegHCylHOB; /** ATA/ATAPI register 6: select drive/head (read/write). */ uint8_t uATARegSelect; /** ATA/ATAPI register 7: status (read-only). */ uint8_t uATARegStatus; /** ATA/ATAPI register 7: command (write-only). */ uint8_t uATARegCommand; /** ATA/ATAPI drive control register (write-only). */ uint8_t uATARegDevCtl; /** Currently active transfer mode (MDMA/UDMA) and speed. */ uint8_t uATATransferMode; /** Current transfer direction. */ uint8_t uTxDir; /** Index of callback for begin transfer. */ uint8_t iBeginTransfer; /** Index of callback for source/sink of data. */ uint8_t iSourceSink; /** Flag indicating whether the current command transfers data in DMA mode. */ bool fDMA; /** Set to indicate that ATAPI transfer semantics must be used. */ bool fATAPITransfer; /** Total ATA/ATAPI transfer size, shared PIO/DMA. */ uint32_t cbTotalTransfer; /** Elementary ATA/ATAPI transfer size, shared PIO/DMA. */ uint32_t cbElementaryTransfer; /** Current read/write buffer position, shared PIO/DMA. */ uint32_t iIOBufferCur; /** First element beyond end of valid buffer content, shared PIO/DMA. */ uint32_t iIOBufferEnd; /** ATA/ATAPI current PIO read/write transfer position. Not shared with DMA for safety reasons. */ uint32_t iIOBufferPIODataStart; /** ATA/ATAPI current PIO read/write transfer end. Not shared with DMA for safety reasons. */ uint32_t iIOBufferPIODataEnd; /** ATAPI current LBA position. */ uint32_t iATAPILBA; /** ATAPI current sector size. */ uint32_t cbATAPISector; /** ATAPI current command. */ uint8_t aATAPICmd[ATAPI_PACKET_SIZE]; /** ATAPI sense key. */ uint8_t uATAPISenseKey; /** ATAPI additional sense code. */ uint8_t uATAPIASC; /** HACK: Countdown till we report a newly unmounted drive as mounted. */ uint8_t cNotifiedMediaChange; /** The status LED state for this drive. */ PDMLED Led; /** Size of I/O buffer. */ uint32_t cbIOBuffer; /** Pointer to the I/O buffer. */ HCPTRTYPE(uint8_t *) pbIOBufferHC; /** Pointer to the I/O buffer. */ GCPTRTYPE(uint8_t *) pbIOBufferGC; #if HC_ARCH_BITS == 64 && GC_ARCH_BITS != 64 RTGCPTR Aligmnent0; /**< Align the statistics at an 8-byte boundrary. */ #endif /* * No data that is part of the saved state after this point!!!!! */ /** Statistics: number of read operations and the time spent reading. */ STAMPROFILEADV StatReads; /** Statistics: number of bytes read. */ STAMCOUNTER StatBytesRead; /** Statistics: number of write operations and the time spent writing. */ STAMPROFILEADV StatWrites; /** Statistics: number of bytes written. */ STAMCOUNTER StatBytesWritten; /** Statistics: number of flush operations and the time spend flushing. */ STAMPROFILE StatFlushes; /** Enable passing through commands directly to the ATAPI drive. */ bool fATAPIPassthrough; /** Number of errors we've reported to the release log. * This is to prevent flooding caused by something going horribly wrong. * this value against MAX_LOG_REL_ERRORS in places likely to cause floods * like the ones we currently seeing on the linux smoke tests (2006-11-10). */ uint32_t cErrors; /** Pointer to the attached driver's base interface. */ HCPTRTYPE(PPDMIBASE) pDrvBase; /** Pointer to the attached driver's block interface. */ HCPTRTYPE(PPDMIBLOCK) pDrvBlock; /** Pointer to the attached driver's block bios interface. */ HCPTRTYPE(PPDMIBLOCKBIOS) pDrvBlockBios; /** Pointer to the attached driver's mount interface. * This is NULL if the driver isn't a removable unit. */ HCPTRTYPE(PPDMIMOUNT) pDrvMount; /** The base interface. */ PDMIBASE IBase; /** The block port interface. */ PDMIBLOCKPORT IPort; /** The mount notify interface. */ PDMIMOUNTNOTIFY IMountNotify; /** The LUN #. */ RTUINT iLUN; #if HC_ARCH_BITS == 64 RTUINT Alignment2; /**< Align pDevInsHC correctly. */ #endif /** Pointer to device instance. */ HCPTRTYPE(PPDMDEVINS) pDevInsHC; /** Pointer to controller instance. */ HCPTRTYPE(struct ATACONTROLLER *) pControllerHC; /** Pointer to device instance. */ GCPTRTYPE(PPDMDEVINS) pDevInsGC; /** Pointer to controller instance. */ GCPTRTYPE(struct ATACONTROLLER *) pControllerGC; } ATADevState; typedef struct ATATransferRequest { uint8_t iIf; uint8_t iBeginTransfer; uint8_t iSourceSink; uint32_t cbTotalTransfer; uint8_t uTxDir; } ATATransferRequest; typedef struct ATAAbortRequest { uint8_t iIf; bool fResetDrive; } ATAAbortRequest; typedef enum { /** Begin a new transfer. */ ATA_AIO_NEW = 0, /** Continue a DMA transfer. */ ATA_AIO_DMA, /** Continue a PIO transfer. */ ATA_AIO_PIO, /** Reset the drives on current controller, stop all transfer activity. */ ATA_AIO_RESET_ASSERTED, /** Reset the drives on current controller, resume operation. */ ATA_AIO_RESET_CLEARED, /** Abort the current transfer of a particular drive. */ ATA_AIO_ABORT } ATAAIO; typedef struct ATARequest { ATAAIO ReqType; union { ATATransferRequest t; ATAAbortRequest a; } u; } ATARequest; typedef struct ATACONTROLLER { /** The base of the first I/O Port range. */ RTIOPORT IOPortBase1; /** The base of the second I/O Port range. (0 if none) */ RTIOPORT IOPortBase2; /** The assigned IRQ. */ RTUINT irq; /** Access critical section */ PDMCRITSECT lock; /** Selected drive. */ uint8_t iSelectedIf; /** The interface on which to handle async I/O. */ uint8_t iAIOIf; /** The state of the async I/O thread. */ uint8_t uAsyncIOState; /** Flag indicating whether the next transfer is part of the current command. */ bool fChainedTransfer; /** Set when the reset processing is currently active on this controller. */ bool fReset; /** Flag whether the current transfer needs to be redone. */ bool fRedo; /** Flag whether the redo suspend has been finished. */ bool fRedoIdle; /** Flag whether the DMA operation to be redone is the final transfer. */ bool fRedoDMALastDesc; /** The BusMaster DMA state. */ BMDMAState BmDma; /** Pointer to first DMA descriptor. */ RTGCPHYS pFirstDMADesc; /** Pointer to last DMA descriptor. */ RTGCPHYS pLastDMADesc; /** Pointer to current DMA buffer (for redo operations). */ RTGCPHYS pRedoDMABuffer; /** Size of current DMA buffer (for redo operations). */ uint32_t cbRedoDMABuffer; /** The ATA/ATAPI interfaces of this controller. */ ATADevState aIfs[2]; /** Pointer to device instance. */ HCPTRTYPE(PPDMDEVINS) pDevInsHC; /** Pointer to device instance. */ GCPTRTYPE(PPDMDEVINS) pDevInsGC; /** Set when the destroying the device instance and the thread must exit. */ uint32_t volatile fShutdown; /** The async I/O thread handle. NIL_RTTHREAD if no thread. */ RTTHREAD AsyncIOThread; /** The event semaphore the thread is waiting on for requests. */ RTSEMEVENT AsyncIOSem; /** The request queue for the AIO thread. One element is always unused. */ ATARequest aAsyncIORequests[4]; /** The position at which to insert a new request for the AIO thread. */ uint8_t AsyncIOReqHead; /** The position at which to get a new request for the AIO thread. */ uint8_t AsyncIOReqTail; uint8_t Alignment3[2]; /** Explicit padding of the 2 byte gap. */ /** Magic delay before triggering interrupts in DMA mode. */ uint32_t DelayIRQMillies; /** The mutex protecting the request queue. */ RTSEMMUTEX AsyncIORequestMutex; /** The event semaphore the thread is waiting on during suspended I/O. */ RTSEMEVENT SuspendIOSem; #if HC_ARCH_BITS == 32 uint32_t Alignment0; #endif /* Statistics */ STAMCOUNTER StatAsyncOps; uint64_t StatAsyncMinWait; uint64_t StatAsyncMaxWait; STAMCOUNTER StatAsyncTimeUS; STAMPROFILEADV StatAsyncTime; STAMPROFILE StatLockWait; } ATACONTROLLER, *PATACONTROLLER; typedef struct PCIATAState { PCIDEVICE dev; /** The controllers. */ ATACONTROLLER aCts[2]; /** Pointer to device instance. */ PPDMDEVINSR3 pDevIns; /** Status Port - Base interface. */ PDMIBASE IBase; /** Status Port - Leds interface. */ PDMILEDPORTS ILeds; /** Partner of ILeds. */ R3PTRTYPE(PPDMILEDCONNECTORS) pLedsConnector; /** Flag whether GC is enabled. */ bool fGCEnabled; /** Flag whether R0 is enabled. */ bool fR0Enabled; bool Alignment0[HC_ARCH_BITS == 64 ? 6 : 2]; /**< Align the struct size. */ } PCIATAState; #define ATADEVSTATE_2_CONTROLLER(pIf) ( (pIf)->CTXSUFF(pController) ) #define ATADEVSTATE_2_DEVINS(pIf) ( (pIf)->CTXSUFF(pDevIns) ) #define CONTROLLER_2_DEVINS(pController) ( (pController)->CTXSUFF(pDevIns) ) #define PDMIBASE_2_PCIATASTATE(pInterface) ( (PCIATAState *)((uintptr_t)(pInterface) - RT_OFFSETOF(PCIATAState, IBase)) ) #define PDMILEDPORTS_2_PCIATASTATE(pInterface) ( (PCIATAState *)((uintptr_t)(pInterface) - RT_OFFSETOF(PCIATAState, ILeds)) ) #define PDMIBASE_2_ATASTATE(pInterface) ( (ATADevState *)((uintptr_t)(pInterface) - RT_OFFSETOF(ATADevState, IBase)) ) #define PDMIBLOCKPORT_2_ATASTATE(pInterface) ( (ATADevState *)((uintptr_t)(pInterface) - RT_OFFSETOF(ATADevState, IPort)) ) #define PDMIMOUNT_2_ATASTATE(pInterface) ( (ATADevState *)((uintptr_t)(pInterface) - RT_OFFSETOF(ATADevState, IMount)) ) #define PDMIMOUNTNOTIFY_2_ATASTATE(pInterface) ( (ATADevState *)((uintptr_t)(pInterface) - RT_OFFSETOF(ATADevState, IMountNotify)) ) #define PCIDEV_2_PCIATASTATE(pPciDev) ( (PCIATAState *)(pPciDev) ) #define ATACONTROLLER_IDX(pController) ( (pController) - PDMINS2DATA(CONTROLLER_2_DEVINS(pController), PCIATAState *)->aCts ) #ifndef VBOX_DEVICE_STRUCT_TESTCASE /******************************************************************************* * Internal Functions * ******************************************************************************/ __BEGIN_DECLS PDMBOTHCBDECL(int) ataIOPortWrite1(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb); PDMBOTHCBDECL(int) ataIOPortRead1(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *u32, unsigned cb); PDMBOTHCBDECL(int) ataIOPortWriteStr1(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, RTGCPTR *pGCPtrSrc, unsigned *pcTransfer, unsigned cb); PDMBOTHCBDECL(int) ataIOPortReadStr1(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, RTGCPTR *pGCPtrDst, unsigned *pcTransfer, unsigned cb); PDMBOTHCBDECL(int) ataIOPortWrite2(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb); PDMBOTHCBDECL(int) ataIOPortRead2(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *u32, unsigned cb); PDMBOTHCBDECL(int) ataBMDMAIOPortWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb); PDMBOTHCBDECL(int) ataBMDMAIOPortRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *pu32, unsigned cb); __END_DECLS DECLINLINE(void) ataSetStatusValue(ATADevState *s, uint8_t stat) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); /* Freeze status register contents while processing RESET. */ if (!pCtl->fReset) { s->uATARegStatus = stat; Log2(("%s: LUN#%d status %#04x\n", __FUNCTION__, s->iLUN, s->uATARegStatus)); } } DECLINLINE(void) ataSetStatus(ATADevState *s, uint8_t stat) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); /* Freeze status register contents while processing RESET. */ if (!pCtl->fReset) { s->uATARegStatus |= stat; Log2(("%s: LUN#%d status %#04x\n", __FUNCTION__, s->iLUN, s->uATARegStatus)); } } DECLINLINE(void) ataUnsetStatus(ATADevState *s, uint8_t stat) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); /* Freeze status register contents while processing RESET. */ if (!pCtl->fReset) { s->uATARegStatus &= ~stat; Log2(("%s: LUN#%d status %#04x\n", __FUNCTION__, s->iLUN, s->uATARegStatus)); } } #ifdef IN_RING3 typedef void (*PBeginTransferFunc)(ATADevState *); typedef bool (*PSourceSinkFunc)(ATADevState *); static void ataReadWriteSectorsBT(ATADevState *); static void ataPacketBT(ATADevState *); static void atapiCmdBT(ATADevState *); static void atapiPassthroughCmdBT(ATADevState *); static bool ataIdentifySS(ATADevState *); static bool ataFlushSS(ATADevState *); static bool ataReadSectorsSS(ATADevState *); static bool ataWriteSectorsSS(ATADevState *); static bool ataExecuteDeviceDiagnosticSS(ATADevState *); static bool ataPacketSS(ATADevState *); static bool atapiGetConfigurationSS(ATADevState *); static bool atapiIdentifySS(ATADevState *); static bool atapiInquirySS(ATADevState *); static bool atapiMechanismStatusSS(ATADevState *); static bool atapiModeSenseErrorRecoverySS(ATADevState *); static bool atapiModeSenseCDStatusSS(ATADevState *); static bool atapiReadSS(ATADevState *); static bool atapiReadCapacitySS(ATADevState *); static bool atapiReadDiscInformationSS(ATADevState *); static bool atapiReadTOCNormalSS(ATADevState *); static bool atapiReadTOCMultiSS(ATADevState *); static bool atapiReadTOCRawSS(ATADevState *); static bool atapiReadTrackInformationSS(ATADevState *); static bool atapiRequestSenseSS(ATADevState *); static bool atapiPassthroughSS(ATADevState *); /** * Begin of transfer function indexes for g_apfnBeginTransFuncs. */ typedef enum ATAFNBT { ATAFN_BT_NULL = 0, ATAFN_BT_READ_WRITE_SECTORS, ATAFN_BT_PACKET, ATAFN_BT_ATAPI_CMD, ATAFN_BT_ATAPI_PASSTHROUGH_CMD, ATAFN_BT_MAX } ATAFNBT; /** * Array of end transfer functions, the index is ATAFNET. * Make sure ATAFNET and this array match! */ static const PBeginTransferFunc g_apfnBeginTransFuncs[ATAFN_BT_MAX] = { NULL, ataReadWriteSectorsBT, ataPacketBT, atapiCmdBT, atapiPassthroughCmdBT, }; /** * Source/sink function indexes for g_apfnSourceSinkFuncs. */ typedef enum ATAFNSS { ATAFN_SS_NULL = 0, ATAFN_SS_IDENTIFY, ATAFN_SS_FLUSH, ATAFN_SS_READ_SECTORS, ATAFN_SS_WRITE_SECTORS, ATAFN_SS_EXECUTE_DEVICE_DIAGNOSTIC, ATAFN_SS_PACKET, ATAFN_SS_ATAPI_GET_CONFIGURATION, ATAFN_SS_ATAPI_IDENTIFY, ATAFN_SS_ATAPI_INQUIRY, ATAFN_SS_ATAPI_MECHANISM_STATUS, ATAFN_SS_ATAPI_MODE_SENSE_ERROR_RECOVERY, ATAFN_SS_ATAPI_MODE_SENSE_CD_STATUS, ATAFN_SS_ATAPI_READ, ATAFN_SS_ATAPI_READ_CAPACITY, ATAFN_SS_ATAPI_READ_DISC_INFORMATION, ATAFN_SS_ATAPI_READ_TOC_NORMAL, ATAFN_SS_ATAPI_READ_TOC_MULTI, ATAFN_SS_ATAPI_READ_TOC_RAW, ATAFN_SS_ATAPI_READ_TRACK_INFORMATION, ATAFN_SS_ATAPI_REQUEST_SENSE, ATAFN_SS_ATAPI_PASSTHROUGH, ATAFN_SS_MAX } ATAFNSS; /** * Array of source/sink functions, the index is ATAFNSS. * Make sure ATAFNSS and this array match! */ static const PSourceSinkFunc g_apfnSourceSinkFuncs[ATAFN_SS_MAX] = { NULL, ataIdentifySS, ataFlushSS, ataReadSectorsSS, ataWriteSectorsSS, ataExecuteDeviceDiagnosticSS, ataPacketSS, atapiGetConfigurationSS, atapiIdentifySS, atapiInquirySS, atapiMechanismStatusSS, atapiModeSenseErrorRecoverySS, atapiModeSenseCDStatusSS, atapiReadSS, atapiReadCapacitySS, atapiReadDiscInformationSS, atapiReadTOCNormalSS, atapiReadTOCMultiSS, atapiReadTOCRawSS, atapiReadTrackInformationSS, atapiRequestSenseSS, atapiPassthroughSS }; static const ATARequest ataDMARequest = { ATA_AIO_DMA, }; static const ATARequest ataPIORequest = { ATA_AIO_PIO, }; static const ATARequest ataResetARequest = { ATA_AIO_RESET_ASSERTED, }; static const ATARequest ataResetCRequest = { ATA_AIO_RESET_CLEARED, }; static void ataAsyncIOClearRequests(PATACONTROLLER pCtl) { int rc; rc = RTSemMutexRequest(pCtl->AsyncIORequestMutex, RT_INDEFINITE_WAIT); AssertRC(rc); pCtl->AsyncIOReqHead = 0; pCtl->AsyncIOReqTail = 0; rc = RTSemMutexRelease(pCtl->AsyncIORequestMutex); AssertRC(rc); } static void ataAsyncIOPutRequest(PATACONTROLLER pCtl, const ATARequest *pReq) { int rc; rc = RTSemMutexRequest(pCtl->AsyncIORequestMutex, RT_INDEFINITE_WAIT); AssertRC(rc); Assert((pCtl->AsyncIOReqHead + 1) % RT_ELEMENTS(pCtl->aAsyncIORequests) != pCtl->AsyncIOReqTail); memcpy(&pCtl->aAsyncIORequests[pCtl->AsyncIOReqHead], pReq, sizeof(*pReq)); pCtl->AsyncIOReqHead++; pCtl->AsyncIOReqHead %= RT_ELEMENTS(pCtl->aAsyncIORequests); rc = RTSemMutexRelease(pCtl->AsyncIORequestMutex); AssertRC(rc); rc = RTSemEventSignal(pCtl->AsyncIOSem); AssertRC(rc); #ifdef __LINUX__ /* For some reason the lower-priority EMT can starve the async I/O * thread. We're holding the CritSect currently, so the async I/O * thread cannot immediately start processing, but it avoids the * starvation. */ RTThreadYield(); #endif /* __LINUX__ */ } static const ATARequest *ataAsyncIOGetCurrentRequest(PATACONTROLLER pCtl) { int rc; const ATARequest *pReq; rc = RTSemMutexRequest(pCtl->AsyncIORequestMutex, RT_INDEFINITE_WAIT); AssertRC(rc); if (pCtl->AsyncIOReqHead != pCtl->AsyncIOReqTail) pReq = &pCtl->aAsyncIORequests[pCtl->AsyncIOReqTail]; else pReq = NULL; rc = RTSemMutexRelease(pCtl->AsyncIORequestMutex); AssertRC(rc); 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. */ static void ataAsyncIORemoveCurrentRequest(PATACONTROLLER pCtl, ATAAIO ReqType) { int rc; rc = RTSemMutexRequest(pCtl->AsyncIORequestMutex, RT_INDEFINITE_WAIT); AssertRC(rc); if (pCtl->AsyncIOReqHead != pCtl->AsyncIOReqTail && pCtl->aAsyncIORequests[pCtl->AsyncIOReqTail].ReqType == ReqType) { pCtl->AsyncIOReqTail++; pCtl->AsyncIOReqTail %= RT_ELEMENTS(pCtl->aAsyncIORequests); } rc = RTSemMutexRelease(pCtl->AsyncIORequestMutex); AssertRC(rc); } /** * 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. */ static void ataAsyncIODumpRequests(PATACONTROLLER pCtl) { int rc; uint8_t curr; rc = RTSemMutexRequest(pCtl->AsyncIORequestMutex, RT_INDEFINITE_WAIT); AssertRC(rc); LogRel(("PIIX3 ATA: Ctl#%d: request queue dump (topmost is current):\n", ATACONTROLLER_IDX(pCtl))); curr = pCtl->AsyncIOReqTail; do { if (curr == pCtl->AsyncIOReqHead) LogRel(("PIIX3 ATA: Ctl#%d: processed requests (topmost is oldest):\n", ATACONTROLLER_IDX(pCtl))); switch (pCtl->aAsyncIORequests[curr].ReqType) { case ATA_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 ATA_AIO_DMA: LogRel(("dma transfer finished\n")); break; case ATA_AIO_PIO: LogRel(("pio transfer finished\n")); break; case ATA_AIO_RESET_ASSERTED: LogRel(("reset asserted request\n")); break; case ATA_AIO_RESET_CLEARED: LogRel(("reset cleared request\n")); break; case ATA_AIO_ABORT: LogRel(("abort request, iIf=%d fResetDrive=%d\n", pCtl->aAsyncIORequests[curr].u.a.iIf, pCtl->aAsyncIORequests[curr].u.a.fResetDrive)); break; default: LogRel(("unknown request %d\n", pCtl->aAsyncIORequests[curr].ReqType)); } curr = (curr + 1) % RT_ELEMENTS(pCtl->aAsyncIORequests); } while (curr != pCtl->AsyncIOReqTail); rc = RTSemMutexRelease(pCtl->AsyncIORequestMutex); AssertRC(rc); } /** * 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. */ static bool ataAsyncIOIsIdle(PATACONTROLLER pCtl, bool fStrict) { int rc; bool fIdle; rc = RTSemMutexRequest(pCtl->AsyncIORequestMutex, RT_INDEFINITE_WAIT); AssertRC(rc); fIdle = pCtl->fRedoIdle; if (!fIdle) fIdle = (pCtl->AsyncIOReqHead == pCtl->AsyncIOReqTail); if (fStrict) fIdle &= (pCtl->uAsyncIOState == ATA_AIO_NEW); rc = RTSemMutexRelease(pCtl->AsyncIORequestMutex); AssertRC(rc); 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. * @param fChainedTransfer Whether this is a transfer that is part of the previous command/transfer. */ static void ataStartTransfer(ATADevState *s, uint32_t cbTotalTransfer, uint8_t uTxDir, ATAFNBT iBeginTransfer, ATAFNSS iSourceSink, bool fChainedTransfer) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); ATARequest Req; Assert(PDMCritSectIsOwner(&pCtl->lock)); /* Do not issue new requests while the RESET line is asserted. */ if (pCtl->fReset) { Log2(("%s: Ctl#%d: suppressed new request as RESET is active\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); 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). */ if (!fChainedTransfer && !ataAsyncIOIsIdle(pCtl, true)) { Log(("%s: Ctl#%d: ignored command %#04x, controller state %d\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl), s->uATARegCommand, pCtl->uAsyncIOState)); LogRel(("PIIX3 IDE: guest issued command %#04x while controller busy\n", s->uATARegCommand)); return; } Req.ReqType = ATA_AIO_NEW; if (fChainedTransfer) Req.u.t.iIf = pCtl->iAIOIf; else Req.u.t.iIf = pCtl->iSelectedIf; Req.u.t.cbTotalTransfer = cbTotalTransfer; Req.u.t.uTxDir = uTxDir; Req.u.t.iBeginTransfer = iBeginTransfer; Req.u.t.iSourceSink = iSourceSink; ataSetStatusValue(s, ATA_STAT_BUSY); pCtl->fChainedTransfer = fChainedTransfer; /* * Kick the worker thread into action. */ Log2(("%s: Ctl#%d: message to async I/O thread, new request\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); ataAsyncIOPutRequest(pCtl, &Req); } /** * 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. */ static void ataAbortCurrentCommand(ATADevState *s, bool fResetDrive) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); ATARequest Req; Assert(PDMCritSectIsOwner(&pCtl->lock)); /* Do not issue new requests while the RESET line is asserted. */ if (pCtl->fReset) { Log2(("%s: Ctl#%d: suppressed aborting command as RESET is active\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); return; } Req.ReqType = ATA_AIO_ABORT; Req.u.a.iIf = pCtl->iSelectedIf; Req.u.a.fResetDrive = fResetDrive; ataSetStatus(s, ATA_STAT_BUSY); Log2(("%s: Ctl#%d: message to async I/O thread, abort command on LUN#%d\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl), s->iLUN)); ataAsyncIOPutRequest(pCtl, &Req); } static void ataSetIRQ(ATADevState *s) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); PPDMDEVINS pDevIns = ATADEVSTATE_2_DEVINS(s); if (!(s->uATARegDevCtl & ATA_DEVCTL_DISABLE_IRQ)) { Log2(("%s: LUN#%d asserting IRQ\n", __FUNCTION__, s->iLUN)); /* 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) pCtl->BmDma.u8Status |= BM_STATUS_INT; s->fIrqPending = true; /* Only actually set the IRQ line if updating the currently selected drive. */ if (s == &pCtl->aIfs[pCtl->iSelectedIf]) { /** @todo experiment with adaptive IRQ delivery: for reads it is * better to wait for IRQ delivery, as it reduces latency. */ if (pCtl->irq == 16) PDMDevHlpPCISetIrqNoWait(pDevIns, 0, 1); else PDMDevHlpISASetIrqNoWait(pDevIns, pCtl->irq, 1); } } } #endif /* IN_RING3 */ static void ataUnsetIRQ(ATADevState *s) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); PPDMDEVINS pDevIns = ATADEVSTATE_2_DEVINS(s); if (s->fIrqPending) { Log2(("%s: LUN#%d deasserting IRQ\n", __FUNCTION__, s->iLUN)); s->fIrqPending = false; /* Only actually unset the IRQ line if updating the currently selected drive. */ if (s == &pCtl->aIfs[pCtl->iSelectedIf]) { if (pCtl->irq == 16) PDMDevHlpPCISetIrqNoWait(pDevIns, 0, 0); else PDMDevHlpISASetIrqNoWait(pDevIns, pCtl->irq, 0); } } } #ifdef IN_RING3 static void ataPIOTransferStart(ATADevState *s, uint32_t start, uint32_t size) { Log2(("%s: LUN#%d start %d size %d\n", __FUNCTION__, s->iLUN, start, size)); s->iIOBufferPIODataStart = start; s->iIOBufferPIODataEnd = start + size; ataSetStatus(s, ATA_STAT_DRQ); } static void ataPIOTransferStop(ATADevState *s) { Log2(("%s: LUN#%d\n", __FUNCTION__, s->iLUN)); if (s->fATAPITransfer) { s->uATARegNSector = (s->uATARegNSector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; Log2(("%s: interrupt reason %#04x\n", __FUNCTION__, s->uATARegNSector)); 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(ATADevState *s) { uint32_t cbLimit, cbTransfer; cbLimit = s->uATARegLCyl | (s->uATARegHCyl << 8); Log2(("%s: byte count limit=%d\n", __FUNCTION__, cbLimit)); if (cbLimit == 0xffff) cbLimit--; cbTransfer = s->cbTotalTransfer; if (cbTransfer > cbLimit) { /* byte count limit must be even if this case */ if (cbLimit & 1) cbLimit--; cbTransfer = cbLimit; } s->uATARegLCyl = cbTransfer; s->uATARegHCyl = cbTransfer >> 8; s->cbElementaryTransfer = cbTransfer; } static uint32_t ataGetNSectors(ATADevState *s) { /* 0 means either 256 (LBA28) or 65536 (LBA48) sectors. */ if (s->fLBA48) { if (!s->uATARegNSector && !s->uATARegNSectorHOB) return 65536; else return s->uATARegNSectorHOB << 8 | s->uATARegNSector; } else { if (!s->uATARegNSector) return 256; else return s->uATARegNSector; } } static void ataPadString(uint8_t *pbDst, const char *pbSrc, uint32_t cbSize) { for (uint32_t i = 0; i < cbSize; i++) { if (*pbSrc) pbDst[i ^ 1] = *pbSrc++; else pbDst[i ^ 1] = ' '; } } static void ataSCSIPadStr(uint8_t *pbDst, const char *pbSrc, uint32_t cbSize) { for (uint32_t i = 0; i < cbSize; i++) { if (*pbSrc) pbDst[i] = *pbSrc++; else pbDst[i] = ' '; } } DECLINLINE(void) ataH2BE_U16(uint8_t *pbBuf, uint16_t val) { pbBuf[0] = val >> 8; pbBuf[1] = val; } DECLINLINE(void) ataH2BE_U24(uint8_t *pbBuf, uint32_t val) { pbBuf[0] = val >> 16; pbBuf[1] = val >> 8; pbBuf[2] = val; } DECLINLINE(void) ataH2BE_U32(uint8_t *pbBuf, uint32_t val) { pbBuf[0] = val >> 24; pbBuf[1] = val >> 16; pbBuf[2] = val >> 8; pbBuf[3] = val; } DECLINLINE(uint16_t) ataBE2H_U16(const uint8_t *pbBuf) { return (pbBuf[0] << 8) | pbBuf[1]; } DECLINLINE(uint32_t) ataBE2H_U24(const uint8_t *pbBuf) { return (pbBuf[0] << 16) | (pbBuf[1] << 8) | pbBuf[2]; } DECLINLINE(uint32_t) ataBE2H_U32(const uint8_t *pbBuf) { return (pbBuf[0] << 24) | (pbBuf[1] << 16) | (pbBuf[2] << 8) | pbBuf[3]; } DECLINLINE(void) ataLBA2MSF(uint8_t *pbBuf, uint32_t iATAPILBA) { iATAPILBA += 150; pbBuf[0] = (iATAPILBA / 75) / 60; pbBuf[1] = (iATAPILBA / 75) % 60; pbBuf[2] = iATAPILBA % 75; } DECLINLINE(uint32_t) ataMSF2LBA(const uint8_t *pbBuf) { return (pbBuf[0] * 60 + pbBuf[1]) * 75 + pbBuf[2]; } static void ataCmdOK(ATADevState *s, uint8_t status) { s->uATARegError = 0; /* Not needed by ATA spec, but cannot hurt. */ ataSetStatusValue(s, ATA_STAT_READY | status); } static void ataCmdError(ATADevState *s, uint8_t uErrorCode) { Log(("%s: code=%#x\n", __FUNCTION__, uErrorCode)); s->uATARegError = uErrorCode; ataSetStatusValue(s, ATA_STAT_READY | ATA_STAT_ERR); 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(ATADevState *s) { uint16_t *p; char aSerial[20]; int rc; RTUUID Uuid; Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer == 512); rc = s->pDrvBlock ? s->pDrvBlock->pfnGetUuid(s->pDrvBlock, &Uuid) : RTUuidClear(&Uuid); if (VBOX_FAILURE(rc) || RTUuidIsNull(&Uuid)) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); /* Generate a predictable serial for drives which don't have a UUID. */ RTStrPrintf(aSerial, sizeof(aSerial), "VB%x-%04x%04x", s->iLUN + ATADEVSTATE_2_DEVINS(s)->iInstance * 32, pCtl->IOPortBase1, pCtl->IOPortBase2); } else RTStrPrintf(aSerial, sizeof(aSerial), "VB%08x-%08x", Uuid.au32[0], Uuid.au32[3]); p = (uint16_t *)s->CTXSUFF(pbIOBuffer); memset(p, 0, 512); p[0] = RT_H2LE_U16(0x0040); p[1] = RT_H2LE_U16(s->cCHSCylinders); p[3] = RT_H2LE_U16(s->cCHSHeads); /* Block size; obsolete, but required for the BIOS. */ p[5] = RT_H2LE_U16(512); p[6] = RT_H2LE_U16(s->cCHSSectors); ataPadString((uint8_t *)(p + 10), aSerial, 20); /* serial number */ p[20] = RT_H2LE_U16(3); /* XXX: retired, cache type */ p[21] = RT_H2LE_U16(512); /* XXX: retired, cache size in sectors */ p[22] = RT_H2LE_U16(0); /* ECC bytes per sector */ ataPadString((uint8_t *)(p + 23), "1.0", 8); /* firmware version */ ataPadString((uint8_t *)(p + 27), "VBOX HARDDISK", 40); /* model */ #if ATA_MAX_MULT_SECTORS > 1 p[47] = RT_H2LE_U16(0x8000 | ATA_MAX_MULT_SECTORS); #endif p[48] = RT_H2LE_U16(1); /* dword I/O, used by the BIOS */ p[49] = RT_H2LE_U16(1 << 11 | 1 << 9 | 1 << 8); /* DMA and LBA supported */ p[50] = RT_H2LE_U16(1 << 14); /* No drive specific standby timer minimum */ p[51] = RT_H2LE_U16(240); /* PIO transfer cycle */ p[52] = RT_H2LE_U16(240); /* DMA transfer cycle */ p[53] = RT_H2LE_U16(1 | 1 << 1 | 1 << 2); /* words 54-58,64-70,88 valid */ p[54] = RT_H2LE_U16(s->cCHSCylinders); p[55] = RT_H2LE_U16(s->cCHSHeads); p[56] = RT_H2LE_U16(s->cCHSSectors); p[57] = RT_H2LE_U16(s->cCHSCylinders * s->cCHSHeads * s->cCHSSectors); p[58] = RT_H2LE_U16(s->cCHSCylinders * s->cCHSHeads * s->cCHSSectors >> 16); if (s->cMultSectors) p[59] = RT_H2LE_U16(0x100 | s->cMultSectors); if (s->cTotalSectors <= (1 << 28) - 1) { p[60] = RT_H2LE_U16(s->cTotalSectors); p[61] = RT_H2LE_U16(s->cTotalSectors >> 16); } else { /* Report maximum number of sectors possible with LBA28 */ p[60] = RT_H2LE_U16(((1 << 28) - 1) & 0xffff); p[61] = RT_H2LE_U16(((1 << 28) - 1) >> 16); } 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[65] = RT_H2LE_U16(120); /* minimum DMA multiword tx cycle time */ p[66] = RT_H2LE_U16(120); /* recommended DMA multiword tx cycle time */ p[67] = RT_H2LE_U16(120); /* minimum PIO cycle time without flow control */ p[68] = RT_H2LE_U16(120); /* minimum PIO cycle time with IORDY flow control */ p[80] = RT_H2LE_U16(0x7e); /* support everything up to ATA/ATAPI-6 */ p[81] = RT_H2LE_U16(0x22); /* conforms to ATA/ATAPI-6 */ p[82] = RT_H2LE_U16(1 << 3 | 1 << 5 | 1 << 6); /* supports power management, write cache and look-ahead */ if (s->cTotalSectors <= (1 << 28) - 1) p[83] = RT_H2LE_U16(1 << 14 | 1 << 12); /* supports FLUSH CACHE */ else p[83] = RT_H2LE_U16(1 << 14 | 1 << 10 | 1 << 12 | 1 << 13); /* supports LBA48, FLUSH CACHE and FLUSH CACHE EXT */ p[84] = RT_H2LE_U16(1 << 14); p[85] = RT_H2LE_U16(1 << 3 | 1 << 5 | 1 << 6); /* enabled power management, write cache and look-ahead */ if (s->cTotalSectors <= (1 << 28) - 1) p[86] = RT_H2LE_U16(1 << 12); /* enabled FLUSH CACHE */ else p[86] = RT_H2LE_U16(1 << 10 | 1 << 12 | 1 << 13); /* enabled LBA48, FLUSH CACHE and FLUSH CACHE EXT */ p[87] = RT_H2LE_U16(1 << 14); p[88] = RT_H2LE_U16(ATA_TRANSFER_ID(ATA_MODE_UDMA, ATA_UDMA_MODE_MAX, s->uATATransferMode)); /* UDMA modes supported / mode enabled */ p[93] = RT_H2LE_U16((1 | 1 << 1) << ((s->iLUN & 1) == 0 ? 0 : 8) | 1 << 13 | 1 << 14); if (s->cTotalSectors > (1 << 28) - 1) { p[100] = RT_H2LE_U16(s->cTotalSectors); p[101] = RT_H2LE_U16(s->cTotalSectors >> 16); p[102] = RT_H2LE_U16(s->cTotalSectors >> 32); p[103] = RT_H2LE_U16(s->cTotalSectors >> 48); } s->iSourceSink = ATAFN_SS_NULL; ataCmdOK(s, ATA_STAT_SEEK); return false; } static bool ataFlushSS(ATADevState *s) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); int rc; Assert(s->uTxDir == PDMBLOCKTXDIR_NONE); Assert(!s->cbElementaryTransfer); PDMCritSectLeave(&pCtl->lock); STAM_PROFILE_START(&s->StatFlushes, f); rc = s->pDrvBlock->pfnFlush(s->pDrvBlock); AssertRC(rc); STAM_PROFILE_STOP(&s->StatFlushes, f); STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); ataCmdOK(s, 0); return false; } static bool atapiIdentifySS(ATADevState *s) { uint16_t *p; char aSerial[20]; RTUUID Uuid; int rc; Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer == 512); rc = s->pDrvBlock ? s->pDrvBlock->pfnGetUuid(s->pDrvBlock, &Uuid) : RTUuidClear(&Uuid); if (VBOX_FAILURE(rc) || RTUuidIsNull(&Uuid)) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); /* Generate a predictable serial for drives which don't have a UUID. */ RTStrPrintf(aSerial, sizeof(aSerial), "VB%x-%04x%04x", s->iLUN + ATADEVSTATE_2_DEVINS(s)->iInstance * 32, pCtl->IOPortBase1, pCtl->IOPortBase2); } else RTStrPrintf(aSerial, sizeof(aSerial), "VB%08x-%08x", Uuid.au32[0], Uuid.au32[3]); p = (uint16_t *)s->CTXSUFF(pbIOBuffer); memset(p, 0, 512); /* Removable CDROM, 50us response, 12 byte packets */ p[0] = RT_H2LE_U16(2 << 14 | 5 << 8 | 1 << 7 | 2 << 5 | 0 << 0); ataPadString((uint8_t *)(p + 10), aSerial, 20); /* serial number */ p[20] = RT_H2LE_U16(3); /* XXX: retired, cache type */ p[21] = RT_H2LE_U16(512); /* XXX: retired, cache size in sectors */ ataPadString((uint8_t *)(p + 23), "1.0", 8); /* firmware version */ ataPadString((uint8_t *)(p + 27), "VBOX CD-ROM", 40); /* model */ p[49] = RT_H2LE_U16(1 << 11 | 1 << 9 | 1 << 8); /* DMA and LBA supported */ p[50] = RT_H2LE_U16(1 << 14); /* No drive specific standby timer minimum */ p[51] = RT_H2LE_U16(240); /* PIO transfer cycle */ p[52] = RT_H2LE_U16(240); /* DMA transfer cycle */ p[53] = RT_H2LE_U16(1 << 1 | 1 << 2); /* words 64-70,88 are valid */ 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[65] = RT_H2LE_U16(120); /* minimum DMA multiword tx cycle time */ p[66] = RT_H2LE_U16(120); /* recommended DMA multiword tx cycle time */ p[67] = RT_H2LE_U16(120); /* minimum PIO cycle time without flow control */ p[68] = RT_H2LE_U16(120); /* minimum PIO cycle time with IORDY flow control */ p[73] = RT_H2LE_U16(0x003e); /* ATAPI CDROM major */ p[74] = RT_H2LE_U16(9); /* ATAPI CDROM minor */ p[75] = RT_H2LE_U16(1); /* queue depth 1 */ p[80] = RT_H2LE_U16(0x7e); /* support everything up to ATA/ATAPI-6 */ p[81] = RT_H2LE_U16(0x22); /* conforms to ATA/ATAPI-6 */ p[82] = RT_H2LE_U16(1 << 4 | 1 << 9); /* supports packet command set and DEVICE RESET */ p[83] = RT_H2LE_U16(1 << 14); p[84] = RT_H2LE_U16(1 << 14); p[85] = RT_H2LE_U16(1 << 4 | 1 << 9); /* enabled packet command set and DEVICE RESET */ p[86] = RT_H2LE_U16(0); p[87] = RT_H2LE_U16(1 << 14); p[88] = RT_H2LE_U16(ATA_TRANSFER_ID(ATA_MODE_UDMA, ATA_UDMA_MODE_MAX, s->uATATransferMode)); /* UDMA modes supported / mode enabled */ p[93] = RT_H2LE_U16((1 | 1 << 1) << ((s->iLUN & 1) == 0 ? 0 : 8) | 1 << 13 | 1 << 14); s->iSourceSink = ATAFN_SS_NULL; ataCmdOK(s, ATA_STAT_SEEK); return false; } static void ataSetSignature(ATADevState *s) { s->uATARegSelect &= 0xf0; /* clear head */ /* 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; } } static uint64_t ataGetSector(ATADevState *s) { uint64_t iLBA; if (s->uATARegSelect & 0x40) { /* any LBA variant */ if (s->fLBA48) { /* LBA48 */ iLBA = ((uint64_t)s->uATARegHCylHOB << 40) | ((uint64_t)s->uATARegLCylHOB << 32) | ((uint64_t)s->uATARegSectorHOB << 24) | ((uint64_t)s->uATARegHCyl << 16) | ((uint64_t)s->uATARegLCyl << 8) | s->uATARegSector; } else { /* LBA */ iLBA = ((s->uATARegSelect & 0x0f) << 24) | (s->uATARegHCyl << 16) | (s->uATARegLCyl << 8) | s->uATARegSector; } } else { /* CHS */ iLBA = ((s->uATARegHCyl << 8) | s->uATARegLCyl) * s->cCHSHeads * s->cCHSSectors + (s->uATARegSelect & 0x0f) * s->cCHSSectors + (s->uATARegSector - 1); } return iLBA; } static void ataSetSector(ATADevState *s, uint64_t iLBA) { uint32_t cyl, r; if (s->uATARegSelect & 0x40) { /* any LBA variant */ if (s->fLBA48) { /* LBA48 */ s->uATARegHCylHOB = iLBA >> 40; s->uATARegLCylHOB = iLBA >> 32; s->uATARegSectorHOB = iLBA >> 24; s->uATARegHCyl = iLBA >> 16; s->uATARegLCyl = iLBA >> 8; s->uATARegSector = iLBA; } else { /* LBA */ s->uATARegSelect = (s->uATARegSelect & 0xf0) | (iLBA >> 24); s->uATARegHCyl = (iLBA >> 16); s->uATARegLCyl = (iLBA >> 8); s->uATARegSector = (iLBA); } } else { /* CHS */ cyl = iLBA / (s->cCHSHeads * s->cCHSSectors); r = iLBA % (s->cCHSHeads * s->cCHSSectors); s->uATARegHCyl = cyl >> 8; s->uATARegLCyl = cyl; s->uATARegSelect = (s->uATARegSelect & 0xf0) | ((r / s->cCHSSectors) & 0x0f); s->uATARegSector = (r % s->cCHSSectors) + 1; } } static int ataReadSectors(ATADevState *s, uint64_t u64Sector, void *pvBuf, uint32_t cSectors) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); int rc; PDMCritSectLeave(&pCtl->lock); STAM_PROFILE_ADV_START(&s->StatReads, r); s->Led.Asserted.s.fReading = s->Led.Actual.s.fReading = 1; rc = s->pDrvBlock->pfnRead(s->pDrvBlock, u64Sector * 512, pvBuf, cSectors * 512); s->Led.Actual.s.fReading = 0; STAM_PROFILE_ADV_STOP(&s->StatReads, r); STAM_COUNTER_ADD(&s->StatBytesRead, cSectors * 512); STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); return rc; } static int ataWriteSectors(ATADevState *s, uint64_t u64Sector, const void *pvBuf, uint32_t cSectors) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); int rc; PDMCritSectLeave(&pCtl->lock); STAM_PROFILE_ADV_START(&s->StatWrites, w); s->Led.Asserted.s.fWriting = s->Led.Actual.s.fWriting = 1; rc = s->pDrvBlock->pfnWrite(s->pDrvBlock, u64Sector * 512, pvBuf, cSectors * 512); s->Led.Actual.s.fWriting = 0; STAM_PROFILE_ADV_STOP(&s->StatWrites, w); STAM_COUNTER_ADD(&s->StatBytesWritten, cSectors * 512); STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); return rc; } static void ataReadWriteSectorsBT(ATADevState *s) { uint32_t cSectors; cSectors = s->cbTotalTransfer / 512; if (cSectors > s->cSectorsPerIRQ) s->cbElementaryTransfer = s->cSectorsPerIRQ * 512; else s->cbElementaryTransfer = cSectors * 512; if (s->uTxDir == PDMBLOCKTXDIR_TO_DEVICE) ataCmdOK(s, 0); } static void ataWarningDiskFull(PPDMDEVINS pDevIns) { int rc; LogRel(("PIIX3 ATA: Host disk full\n")); rc = VMSetRuntimeError(PDMDevHlpGetVM(pDevIns), false, "DevATA_DISKFULL", N_("Host system reported disk full. VM execution is suspended. You can resume after freeing some space")); AssertRC(rc); } static void ataWarningISCSI(PPDMDEVINS pDevIns) { int rc; LogRel(("PIIX3 ATA: iSCSI target unavailable\n")); rc = VMSetRuntimeError(PDMDevHlpGetVM(pDevIns), false, "DevATA_ISCSIDOWN", N_("The iSCSI target has stopped responding. VM execution is suspended. You can resume when it is available again")); AssertRC(rc); } static bool ataReadSectorsSS(ATADevState *s) { int rc; uint32_t cSectors; uint64_t iLBA; cSectors = s->cbElementaryTransfer / 512; Assert(cSectors); iLBA = ataGetSector(s); Log(("%s: %d sectors at LBA %d\n", __FUNCTION__, cSectors, iLBA)); rc = ataReadSectors(s, iLBA, s->CTXSUFF(pbIOBuffer), cSectors); if (VBOX_SUCCESS(rc)) { ataSetSector(s, iLBA + cSectors); if (s->cbElementaryTransfer == s->cbTotalTransfer) s->iSourceSink = ATAFN_SS_NULL; ataCmdOK(s, ATA_STAT_SEEK); } else { if (rc == VERR_DISK_FULL) { ataWarningDiskFull(ATADEVSTATE_2_DEVINS(s)); return true; } if (rc == VERR_BROKEN_PIPE || rc == VERR_NET_CONNECTION_REFUSED) { /* iSCSI connection abort (first error) or failure to reestablish * connection (second error). Pause VM. On resume we'll retry. */ ataWarningISCSI(ATADEVSTATE_2_DEVINS(s)); return true; } if (s->cErrors++ < MAX_LOG_REL_ERRORS) LogRel(("PIIX3 ATA: LUN#%d: disk read error (rc=%Vrc iSector=%#RX64 cSectors=%#RX32)\n", s->iLUN, rc, iLBA, cSectors)); ataCmdError(s, ID_ERR); } /** @todo implement redo for iSCSI */ return false; } static bool ataWriteSectorsSS(ATADevState *s) { int rc; uint32_t cSectors; uint64_t iLBA; cSectors = s->cbElementaryTransfer / 512; Assert(cSectors); iLBA = ataGetSector(s); Log(("%s: %d sectors at LBA %d\n", __FUNCTION__, cSectors, iLBA)); rc = ataWriteSectors(s, iLBA, s->CTXSUFF(pbIOBuffer), cSectors); if (VBOX_SUCCESS(rc)) { ataSetSector(s, iLBA + cSectors); if (!s->cbTotalTransfer) s->iSourceSink = ATAFN_SS_NULL; ataCmdOK(s, ATA_STAT_SEEK); } else { if (rc == VERR_DISK_FULL) { ataWarningDiskFull(ATADEVSTATE_2_DEVINS(s)); return true; } if (rc == VERR_BROKEN_PIPE || rc == VERR_NET_CONNECTION_REFUSED) { /* iSCSI connection abort (first error) or failure to reestablish * connection (second error). Pause VM. On resume we'll retry. */ ataWarningISCSI(ATADEVSTATE_2_DEVINS(s)); return true; } if (s->cErrors++ < MAX_LOG_REL_ERRORS) LogRel(("PIIX3 ATA: LUN#%d: disk write error (rc=%Vrc iSector=%#RX64 cSectors=%#RX32)\n", s->iLUN, rc, iLBA, cSectors)); ataCmdError(s, ID_ERR); } /** @todo implement redo for iSCSI */ return false; } static void atapiCmdOK(ATADevState *s) { s->uATARegError = 0; ataSetStatusValue(s, ATA_STAT_READY); s->uATARegNSector = (s->uATARegNSector & ~7) | ((s->uTxDir != PDMBLOCKTXDIR_TO_DEVICE) ? ATAPI_INT_REASON_IO : 0) | (!s->cbTotalTransfer ? ATAPI_INT_REASON_CD : 0); Log2(("%s: interrupt reason %#04x\n", __FUNCTION__, s->uATARegNSector)); s->uATAPISenseKey = SCSI_SENSE_NONE; s->uATAPIASC = SCSI_ASC_NONE; } static void atapiCmdError(ATADevState *s, uint8_t uATAPISenseKey, uint8_t uATAPIASC) { Log(("%s: sense=%#x asc=%#x\n", __FUNCTION__, uATAPISenseKey, uATAPIASC)); s->uATARegError = uATAPISenseKey << 4; ataSetStatusValue(s, ATA_STAT_READY | ATA_STAT_ERR); s->uATARegNSector = (s->uATARegNSector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; Log2(("%s: interrupt reason %#04x\n", __FUNCTION__, s->uATARegNSector)); s->uATAPISenseKey = uATAPISenseKey; s->uATAPIASC = uATAPIASC; 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 void atapiCmdBT(ATADevState *s) { s->fATAPITransfer = true; s->cbElementaryTransfer = s->cbTotalTransfer; if (s->uTxDir == PDMBLOCKTXDIR_TO_DEVICE) atapiCmdOK(s); } static void atapiPassthroughCmdBT(ATADevState *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) { uint8_t cmd = s->aATAPICmd[0]; if (cmd == SCSI_WRITE_10 || cmd == SCSI_WRITE_12 || cmd == SCSI_WRITE_AND_VERIFY_10) { uint8_t aModeSenseCmd[10]; uint8_t aModeSenseResult[16]; uint8_t uDummySense; uint32_t cbTransfer; int rc; cbTransfer = sizeof(aModeSenseResult); aModeSenseCmd[0] = SCSI_MODE_SENSE_10; aModeSenseCmd[1] = 0x08; /* disable block descriptor = 1 */ aModeSenseCmd[2] = (SCSI_PAGECONTROL_CURRENT << 6) | SCSI_MODEPAGE_WRITE_PARAMETER; aModeSenseCmd[3] = 0; /* subpage code */ aModeSenseCmd[4] = 0; /* reserved */ aModeSenseCmd[5] = 0; /* reserved */ aModeSenseCmd[6] = 0; /* reserved */ aModeSenseCmd[7] = cbTransfer >> 8; aModeSenseCmd[8] = cbTransfer & 0xff; aModeSenseCmd[9] = 0; /* control */ rc = s->pDrvBlock->pfnSendCmd(s->pDrvBlock, aModeSenseCmd, PDMBLOCKTXDIR_FROM_DEVICE, aModeSenseResult, &cbTransfer, &uDummySense, 500); if (VBOX_FAILURE(rc)) { atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_NONE); return; } /* Select sector size based on the current data block type. */ switch (aModeSenseResult[12] & 0x0f) { 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; } Log2(("%s: sector size %d\n", __FUNCTION__, s->cbATAPISector)); s->cbTotalTransfer *= s->cbATAPISector; if (s->cbTotalTransfer == 0) s->uTxDir = PDMBLOCKTXDIR_NONE; } } #endif atapiCmdBT(s); } static bool atapiReadSS(ATADevState *s) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); int rc = VINF_SUCCESS; uint32_t cbTransfer, cSectors; s->iSourceSink = ATAFN_SS_NULL; Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); cbTransfer = RT_MIN(s->cbTotalTransfer, s->cbIOBuffer); cSectors = cbTransfer / s->cbATAPISector; Assert(cSectors * s->cbATAPISector == cbTransfer); Log(("%s: %d sectors at LBA %d\n", __FUNCTION__, cSectors, s->iATAPILBA)); PDMCritSectLeave(&pCtl->lock); STAM_PROFILE_ADV_START(&s->StatReads, r); s->Led.Asserted.s.fReading = s->Led.Actual.s.fReading = 1; switch (s->cbATAPISector) { case 2048: rc = s->pDrvBlock->pfnRead(s->pDrvBlock, (uint64_t)s->iATAPILBA * s->cbATAPISector, s->CTXSUFF(pbIOBuffer), s->cbATAPISector * cSectors); break; case 2352: { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); for (uint32_t i = s->iATAPILBA; i < s->iATAPILBA + cSectors; i++) { /* sync bytes */ *pbBuf++ = 0x00; memset(pbBuf, 0xff, 11); pbBuf += 11; /* MSF */ ataLBA2MSF(pbBuf, i); pbBuf += 3; *pbBuf++ = 0x01; /* mode 1 data */ /* data */ rc = s->pDrvBlock->pfnRead(s->pDrvBlock, (uint64_t)i * 2048, pbBuf, 2048); if (VBOX_FAILURE(rc)) break; pbBuf += 2048; /* ECC */ memset(pbBuf, 0, 288); pbBuf += 288; } } break; default: break; } STAM_PROFILE_ADV_STOP(&s->StatReads, r); STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); if (VBOX_SUCCESS(rc)) { s->Led.Actual.s.fReading = 0; STAM_COUNTER_ADD(&s->StatBytesRead, s->cbATAPISector * cSectors); atapiCmdOK(s); s->iATAPILBA += cSectors; } else { if (s->cErrors++ < MAX_LOG_REL_ERRORS) LogRel(("PIIX3 ATA: LUN#%d: CD-ROM read error, %d sectors at LBA %d\n", s->iLUN, cSectors, s->iATAPILBA)); atapiCmdError(s, SCSI_SENSE_MEDIUM_ERROR, SCSI_ASC_READ_ERROR); } return false; } static bool atapiPassthroughSS(ATADevState *s) { PATACONTROLLER pCtl = ATADEVSTATE_2_CONTROLLER(s); int rc = VINF_SUCCESS; uint8_t uATAPISenseKey; size_t cbTransfer; PSTAMPROFILEADV pProf = NULL; cbTransfer = s->cbElementaryTransfer; if (s->uTxDir == PDMBLOCKTXDIR_TO_DEVICE) Log3(("ATAPI PT data write (%d): %.*Vhxs\n", cbTransfer, cbTransfer, s->CTXSUFF(pbIOBuffer))); /* 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) { s->Led.Asserted.s.fReading = s->Led.Actual.s.fReading = 1; pProf = &s->StatReads; } else { s->Led.Asserted.s.fWriting = s->Led.Actual.s.fWriting = 1; pProf = &s->StatWrites; } } PDMCritSectLeave(&pCtl->lock); if (pProf) { STAM_PROFILE_ADV_START(pProf, b); } if (cbTransfer > 100 * _1K) { /* 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. */ uint8_t aATAPICmd[ATAPI_PACKET_SIZE]; uint32_t iATAPILBA, cSectors, cReqSectors; size_t cbCurrTX; uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); switch (s->aATAPICmd[0]) { case SCSI_READ_10: case SCSI_WRITE_10: case SCSI_WRITE_AND_VERIFY_10: iATAPILBA = ataBE2H_U32(s->aATAPICmd + 2); cSectors = ataBE2H_U16(s->aATAPICmd + 7); break; case SCSI_READ_12: case SCSI_WRITE_12: iATAPILBA = ataBE2H_U32(s->aATAPICmd + 2); cSectors = ataBE2H_U32(s->aATAPICmd + 6); break; case SCSI_READ_CD: iATAPILBA = ataBE2H_U32(s->aATAPICmd + 2); cSectors = ataBE2H_U24(s->aATAPICmd + 6) / s->cbATAPISector; break; case SCSI_READ_CD_MSF: iATAPILBA = ataMSF2LBA(s->aATAPICmd + 3); cSectors = ataMSF2LBA(s->aATAPICmd + 6) - iATAPILBA; break; default: AssertMsgFailed(("Don't know how to split command %#04x\n", s->aATAPICmd[0])); if (s->cErrors++ < MAX_LOG_REL_ERRORS) LogRel(("PIIX3 ATA: LUN#%d: CD-ROM passthrough split error\n", s->iLUN)); atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_OPCODE); { STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); } return false; } memcpy(aATAPICmd, s->aATAPICmd, ATAPI_PACKET_SIZE); cReqSectors = 0; for (uint32_t i = cSectors; i > 0; i -= cReqSectors) { if (i * s->cbATAPISector > 100 * _1K) cReqSectors = (100 * _1K) / s->cbATAPISector; else cReqSectors = i; cbCurrTX = s->cbATAPISector * cReqSectors; switch (s->aATAPICmd[0]) { case SCSI_READ_10: case SCSI_WRITE_10: case SCSI_WRITE_AND_VERIFY_10: ataH2BE_U32(aATAPICmd + 2, iATAPILBA); ataH2BE_U16(aATAPICmd + 7, cReqSectors); break; case SCSI_READ_12: case SCSI_WRITE_12: ataH2BE_U32(aATAPICmd + 2, iATAPILBA); ataH2BE_U32(aATAPICmd + 6, cReqSectors); break; case SCSI_READ_CD: ataH2BE_U32(s->aATAPICmd + 2, iATAPILBA); ataH2BE_U24(s->aATAPICmd + 6, cbCurrTX); break; case SCSI_READ_CD_MSF: ataLBA2MSF(aATAPICmd + 3, iATAPILBA); ataLBA2MSF(aATAPICmd + 6, iATAPILBA + cReqSectors); break; } rc = s->pDrvBlock->pfnSendCmd(s->pDrvBlock, aATAPICmd, (PDMBLOCKTXDIR)s->uTxDir, pbBuf, &cbCurrTX, &uATAPISenseKey, 30000 /**< @todo timeout */); if (rc != VINF_SUCCESS) break; iATAPILBA += cReqSectors; pbBuf += s->cbATAPISector * cReqSectors; } } else rc = s->pDrvBlock->pfnSendCmd(s->pDrvBlock, s->aATAPICmd, (PDMBLOCKTXDIR)s->uTxDir, s->CTXSUFF(pbIOBuffer), &cbTransfer, &uATAPISenseKey, 30000 /**< @todo timeout */); if (pProf) { STAM_PROFILE_ADV_STOP(pProf, b); } STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); /* Update the LEDs and the read/write statistics. */ if (cbTransfer >= 2048) { if (s->uTxDir != PDMBLOCKTXDIR_TO_DEVICE) { s->Led.Actual.s.fReading = 0; STAM_COUNTER_ADD(&s->StatBytesRead, cbTransfer); } else { s->Led.Actual.s.fWriting = 0; STAM_COUNTER_ADD(&s->StatBytesWritten, cbTransfer); } } if (VBOX_SUCCESS(rc)) { if (s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE) { Assert(cbTransfer <= s->cbTotalTransfer); /* Reply with the same amount of data as the real drive. */ s->cbTotalTransfer = cbTransfer; 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): %.*Vhxs\n", cbTransfer, cbTransfer, s->CTXSUFF(pbIOBuffer))); ataSCSIPadStr(s->CTXSUFF(pbIOBuffer) + 8, "VBOX", 8); ataSCSIPadStr(s->CTXSUFF(pbIOBuffer) + 16, "CD-ROM", 16); ataSCSIPadStr(s->CTXSUFF(pbIOBuffer) + 32, "1.0", 4); } if (cbTransfer) Log3(("ATAPI PT data read (%d): %.*Vhxs\n", cbTransfer, cbTransfer, s->CTXSUFF(pbIOBuffer))); } s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); } else { if (s->cErrors++ < MAX_LOG_REL_ERRORS) LogRel(("PIIX3 ATA: LUN#%d: CD-ROM passthrough command (%#04x) error %d\n", s->iLUN, s->aATAPICmd[0], uATAPISenseKey)); atapiCmdError(s, uATAPISenseKey, 0); /* This is a drive-reported error. atapiCmdError() sets both the error * error code in the ATA error register and in s->uATAPISenseKey. The * former is correct, the latter is not. Otherwise the drive would not * get the next REQUEST SENSE command which is necessary to clear the * error status of the drive. Easy fix: clear s->uATAPISenseKey. */ s->uATAPISenseKey = SCSI_SENSE_NONE; s->uATAPIASC = SCSI_ASC_NONE; } return false; } static bool atapiReadSectors(ATADevState *s, uint32_t iATAPILBA, uint32_t cSectors, uint32_t cbSector) { Assert(cSectors > 0); s->iATAPILBA = iATAPILBA; s->cbATAPISector = cbSector; ataStartTransfer(s, cSectors * cbSector, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_READ, true); return false; } static bool atapiReadCapacitySS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer <= 8); ataH2BE_U32(pbBuf, s->cTotalSectors - 1); ataH2BE_U32(pbBuf + 4, 2048); s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static bool atapiReadDiscInformationSS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer <= 34); memset(pbBuf, '\0', 34); ataH2BE_U16(pbBuf, 32); pbBuf[2] = (0 << 4) | (3 << 2) | (2 << 0); /* not erasable, complete session, complete disc */ pbBuf[3] = 1; /* number of first track */ pbBuf[4] = 1; /* number of sessions (LSB) */ pbBuf[5] = 1; /* first track number in last session (LSB) */ pbBuf[6] = 1; /* last track number in last session (LSB) */ 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 */ pbBuf[8] = 0; /* disc type = CD-ROM */ pbBuf[9] = 0; /* number of sessions (MSB) */ pbBuf[10] = 0; /* number of sessions (MSB) */ pbBuf[11] = 0; /* number of sessions (MSB) */ ataH2BE_U32(pbBuf + 16, 0x00ffffff); /* last session lead-in start time is not available */ ataH2BE_U32(pbBuf + 20, 0x00ffffff); /* last possible start time for lead-out is not available */ s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static bool atapiReadTrackInformationSS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer <= 36); /* Accept address/number type of 1 only, and only track 1 exists. */ if ((s->aATAPICmd[1] & 0x03) != 1 || ataBE2H_U32(&s->aATAPICmd[2]) != 1) { atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET); return false; } memset(pbBuf, '\0', 36); ataH2BE_U16(pbBuf, 34); pbBuf[2] = 1; /* track number (LSB) */ pbBuf[3] = 1; /* session number (LSB) */ pbBuf[5] = (0 << 5) | (0 << 4) | (4 << 0); /* not damaged, primary copy, data track */ 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 */ ataH2BE_U32(pbBuf + 8, 0); /* track start address is 0 */ ataH2BE_U32(pbBuf + 24, s->cTotalSectors); /* track size */ pbBuf[32] = 0; /* track number (MSB) */ pbBuf[33] = 0; /* session number (MSB) */ s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static bool atapiGetConfigurationSS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer <= 32); /* Accept valid request types only, and only starting feature 0. */ if ((s->aATAPICmd[1] & 0x03) == 3 || ataBE2H_U16(&s->aATAPICmd[2]) != 0) { atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET); return false; } memset(pbBuf, '\0', 32); ataH2BE_U32(pbBuf, 16); /** @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. */ ataH2BE_U16(pbBuf + 6, 0x08); /* current profile: read-only CD */ ataH2BE_U16(pbBuf + 8, 0); /* feature 0: list of profiles supported */ pbBuf[10] = (0 << 2) | (1 << 1) | (1 || 0); /* version 0, persistent, current */ pbBuf[11] = 8; /* additional bytes for profiles */ /* The MMC-3 spec says that DVD-ROM read capability should be reported * before CD-ROM read capability. */ ataH2BE_U16(pbBuf + 12, 0x10); /* profile: read-only DVD */ pbBuf[14] = (0 << 0); /* NOT current profile */ ataH2BE_U16(pbBuf + 16, 0x08); /* profile: read only CD */ pbBuf[18] = (1 << 0); /* current profile */ /* 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 atapiInquirySS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer <= 36); pbBuf[0] = 0x05; /* CD-ROM */ pbBuf[1] = 0x80; /* removable */ #if 1/*ndef VBOX*/ /** @todo implement MESN + AENC. (async notification on removal and stuff.) */ pbBuf[2] = 0x00; /* ISO */ pbBuf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */ #else pbBuf[2] = 0x00; /* ISO */ pbBuf[3] = 0x91; /* format 1, MESN=1, AENC=9 ??? */ #endif pbBuf[4] = 31; /* additional length */ pbBuf[5] = 0; /* reserved */ pbBuf[6] = 0; /* reserved */ pbBuf[7] = 0; /* reserved */ ataSCSIPadStr(pbBuf + 8, "VBOX", 8); ataSCSIPadStr(pbBuf + 16, "CD-ROM", 16); ataSCSIPadStr(pbBuf + 32, "1.0", 4); s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static bool atapiModeSenseErrorRecoverySS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer <= 16); ataH2BE_U16(&pbBuf[0], 16 + 6); pbBuf[2] = 0x70; pbBuf[3] = 0; pbBuf[4] = 0; pbBuf[5] = 0; pbBuf[6] = 0; pbBuf[7] = 0; pbBuf[8] = 0x01; pbBuf[9] = 0x06; pbBuf[10] = 0x00; pbBuf[11] = 0x05; pbBuf[12] = 0x00; pbBuf[13] = 0x00; pbBuf[14] = 0x00; pbBuf[15] = 0x00; s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static bool atapiModeSenseCDStatusSS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer <= 40); ataH2BE_U16(&pbBuf[0], 38); pbBuf[2] = 0x70; pbBuf[3] = 0; pbBuf[4] = 0; pbBuf[5] = 0; pbBuf[6] = 0; pbBuf[7] = 0; pbBuf[8] = 0x2a; pbBuf[9] = 30; /* page length */ pbBuf[10] = 0x08; /* DVD-ROM read support */ pbBuf[11] = 0x00; /* no write support */ /* 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[12] = 0x71; /* multisession support, mode 2 form 1/2 support, audio play */ pbBuf[13] = 0x00; /* no subchannel reads supported */ pbBuf[14] = (1 << 0) | (1 << 3) | (1 << 5); /* lock supported, eject supported, tray type loading mechanism */ if (s->pDrvMount->pfnIsLocked(s->pDrvMount)) pbBuf[14] |= 1 << 1; /* report lock state */ pbBuf[15] = 0; /* no subchannel reads supported, no separate audio volume control, no changer etc. */ ataH2BE_U16(&pbBuf[16], 5632); /* (obsolete) claim 32x speed support */ ataH2BE_U16(&pbBuf[18], 2); /* number of audio volume levels */ ataH2BE_U16(&pbBuf[20], s->cbIOBuffer / _1K); /* buffer size supported in Kbyte */ ataH2BE_U16(&pbBuf[22], 5632); /* (obsolete) current read speed 32x */ pbBuf[24] = 0; /* reserved */ pbBuf[25] = 0; /* reserved for digital audio (see idx 15) */ ataH2BE_U16(&pbBuf[26], 0); /* (obsolete) maximum write speed */ ataH2BE_U16(&pbBuf[28], 0); /* (obsolete) current write speed */ ataH2BE_U16(&pbBuf[30], 0); /* copy management revision supported 0=no CSS */ pbBuf[32] = 0; /* reserved */ pbBuf[33] = 0; /* reserved */ pbBuf[34] = 0; /* reserved */ pbBuf[35] = 1; /* rotation control CAV */ ataH2BE_U16(&pbBuf[36], 0); /* current write speed */ ataH2BE_U16(&pbBuf[38], 0); /* number of write speed performance descriptors */ s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static bool atapiRequestSenseSS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer <= 18); memset(pbBuf, 0, 18); pbBuf[0] = 0x70 | (1 << 7); pbBuf[2] = s->uATAPISenseKey; pbBuf[7] = 10; pbBuf[12] = s->uATAPIASC; s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static bool atapiMechanismStatusSS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer <= 8); ataH2BE_U16(pbBuf, 0); /* no current LBA */ pbBuf[2] = 0; pbBuf[3] = 0; pbBuf[4] = 0; pbBuf[5] = 1; ataH2BE_U16(pbBuf + 6, 0); s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static bool atapiReadTOCNormalSS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer), *q, iStartTrack; bool fMSF; uint32_t cbSize; Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); fMSF = (s->aATAPICmd[1] >> 1) & 1; iStartTrack = s->aATAPICmd[6]; if (iStartTrack > 1 && iStartTrack != 0xaa) { atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET); 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; } cbSize = q - pbBuf; ataH2BE_U16(pbBuf, cbSize - 2); if (cbSize < s->cbTotalTransfer) s->cbTotalTransfer = cbSize; s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static bool atapiReadTOCMultiSS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer); bool fMSF; Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); Assert(s->cbElementaryTransfer <= 12); fMSF = (s->aATAPICmd[1] >> 1) & 1; /* 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. */ memset(pbBuf, 0, 12); pbBuf[1] = 0x0a; pbBuf[2] = 0x01; pbBuf[3] = 0x01; pbBuf[5] = 0x14; /* ADR, control */ pbBuf[6] = 1; /* first track in last complete session */ if (fMSF) { pbBuf[8] = 0; /* reserved */ ataLBA2MSF(&pbBuf[9], 0); } else { /* sector 0 */ ataH2BE_U32(pbBuf + 8, 0); } s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static bool atapiReadTOCRawSS(ATADevState *s) { uint8_t *pbBuf = s->CTXSUFF(pbIOBuffer), *q, iStartTrack; bool fMSF; uint32_t cbSize; Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); fMSF = (s->aATAPICmd[1] >> 1) & 1; iStartTrack = s->aATAPICmd[6]; 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; } cbSize = q - pbBuf; ataH2BE_U16(pbBuf, cbSize - 2); if (cbSize < s->cbTotalTransfer) s->cbTotalTransfer = cbSize; s->iSourceSink = ATAFN_SS_NULL; atapiCmdOK(s); return false; } static void atapiParseCmdVirtualATAPI(ATADevState *s) { const uint8_t *pbPacket; uint8_t *pbBuf; uint32_t cbMax; pbPacket = s->aATAPICmd; pbBuf = s->CTXSUFF(pbIOBuffer); switch (pbPacket[0]) { case SCSI_TEST_UNIT_READY: if (s->cNotifiedMediaChange > 0) { if (s->cNotifiedMediaChange-- > 2) atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT); else atapiCmdError(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */ } else if (s->pDrvMount->pfnIsMounted(s->pDrvMount)) atapiCmdOK(s); else atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT); break; case SCSI_MODE_SENSE_10: { uint8_t uPageControl, uPageCode; cbMax = ataBE2H_U16(pbPacket + 7); uPageControl = pbPacket[2] >> 6; uPageCode = pbPacket[2] & 0x3f; switch (uPageControl) { case SCSI_PAGECONTROL_CURRENT: switch (uPageCode) { case SCSI_MODEPAGE_ERROR_RECOVERY: 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; case SCSI_PAGECONTROL_CHANGEABLE: goto error_cmd; case SCSI_PAGECONTROL_DEFAULT: goto error_cmd; default: case SCSI_PAGECONTROL_SAVED: atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_SAVING_PARAMETERS_NOT_SUPPORTED); break; } } break; case SCSI_REQUEST_SENSE: cbMax = pbPacket[4]; ataStartTransfer(s, RT_MIN(cbMax, 18), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_REQUEST_SENSE, true); break; case SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL: if (s->pDrvMount->pfnIsMounted(s->pDrvMount)) { if (pbPacket[4] & 1) s->pDrvMount->pfnLock(s->pDrvMount); else s->pDrvMount->pfnUnlock(s->pDrvMount); atapiCmdOK(s); } else atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT); break; case SCSI_READ_10: case SCSI_READ_12: { uint32_t cSectors, iATAPILBA; if (s->cNotifiedMediaChange > 0) { s->cNotifiedMediaChange-- ; atapiCmdError(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */ break; } else if (!s->pDrvMount->pfnIsMounted(s->pDrvMount)) { atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT); break; } if (pbPacket[0] == SCSI_READ_10) cSectors = ataBE2H_U16(pbPacket + 7); else cSectors = ataBE2H_U32(pbPacket + 6); iATAPILBA = ataBE2H_U32(pbPacket + 2); if (cSectors == 0) { atapiCmdOK(s); break; } if ((uint64_t)iATAPILBA + cSectors > s->cTotalSectors) { /* 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; if (RTTimeMilliTS() >= uLastLogTS + 1000) { LogRel(("PIIX3 ATA: LUN#%d: CD-ROM block number %Ld invalid (READ)\n", s->iLUN, (uint64_t)iATAPILBA + cSectors)); uLastLogTS = RTTimeMilliTS(); } atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_LOGICAL_BLOCK_OOR); break; } atapiReadSectors(s, iATAPILBA, cSectors, 2048); } break; case SCSI_READ_CD: { uint32_t cSectors, iATAPILBA; if (s->cNotifiedMediaChange > 0) { s->cNotifiedMediaChange-- ; atapiCmdError(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */ break; } else if (!s->pDrvMount->pfnIsMounted(s->pDrvMount)) { atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT); break; } cSectors = (pbPacket[6] << 16) | (pbPacket[7] << 8) | pbPacket[8]; iATAPILBA = ataBE2H_U32(pbPacket + 2); if (cSectors == 0) { atapiCmdOK(s); break; } if ((uint64_t)iATAPILBA + cSectors > s->cTotalSectors) { /* 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; if (RTTimeMilliTS() >= uLastLogTS + 1000) { LogRel(("PIIX3 ATA: LUN#%d: CD-ROM block number %Ld invalid (READ CD)\n", s->iLUN, (uint64_t)iATAPILBA + cSectors)); uLastLogTS = RTTimeMilliTS(); } atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_LOGICAL_BLOCK_OOR); break; } switch (pbPacket[9] & 0xf8) { case 0x00: /* nothing */ atapiCmdOK(s); break; case 0x10: /* normal read */ atapiReadSectors(s, iATAPILBA, cSectors, 2048); break; case 0xf8: /* read all data */ atapiReadSectors(s, iATAPILBA, cSectors, 2352); break; default: LogRel(("PIIX3 ATA: LUN#%d: CD-ROM sector format not supported\n", s->iLUN)); atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET); break; } } break; case SCSI_SEEK_10: { uint32_t iATAPILBA; if (s->cNotifiedMediaChange > 0) { s->cNotifiedMediaChange-- ; atapiCmdError(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */ break; } else if (!s->pDrvMount->pfnIsMounted(s->pDrvMount)) { atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT); break; } iATAPILBA = ataBE2H_U32(pbPacket + 2); 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; if (RTTimeMilliTS() >= uLastLogTS + 1000) { LogRel(("PIIX3 ATA: LUN#%d: CD-ROM block number %Ld invalid (SEEK)\n", s->iLUN, (uint64_t)iATAPILBA)); uLastLogTS = RTTimeMilliTS(); } atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_LOGICAL_BLOCK_OOR); break; } atapiCmdOK(s); ataSetStatus(s, ATA_STAT_SEEK); /* Linux expects this. */ } break; case SCSI_START_STOP_UNIT: { int rc = VINF_SUCCESS; switch (pbPacket[4] & 3) { case 0: /* 00 - Stop motor */ case 1: /* 01 - Start motor */ break; case 2: /* 10 - Eject media */ /* This must be done from EMT. */ { PPDMDEVINS pDevIns = ATADEVSTATE_2_DEVINS(s); PVMREQ pReq; rc = VMR3ReqCall(PDMDevHlpGetVM(pDevIns), &pReq, RT_INDEFINITE_WAIT, (PFNRT)s->pDrvMount->pfnUnmount, 1, s->pDrvMount); AssertReleaseRC(rc); VMR3ReqFree(pReq); } break; case 3: /* 11 - Load media */ /** @todo rc = s->pDrvMount->pfnLoadMedia(s->pDrvMount) */ break; } if (VBOX_SUCCESS(rc)) atapiCmdOK(s); else atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIA_LOAD_OR_EJECT_FAILED); } break; case SCSI_MECHANISM_STATUS: { cbMax = ataBE2H_U16(pbPacket + 8); 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: { uint8_t format; if (s->cNotifiedMediaChange > 0) { s->cNotifiedMediaChange-- ; atapiCmdError(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */ break; } else if (!s->pDrvMount->pfnIsMounted(s->pDrvMount)) { atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT); break; } cbMax = ataBE2H_U16(pbPacket + 7); /* 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... */ format = (pbPacket[2] & 0xf) | (pbPacket[9] >> 6); 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: error_cmd: atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET); break; } } break; case SCSI_READ_CAPACITY: if (s->cNotifiedMediaChange > 0) { s->cNotifiedMediaChange-- ; atapiCmdError(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */ break; } else if (!s->pDrvMount->pfnIsMounted(s->pDrvMount)) { atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT); break; } ataStartTransfer(s, 8, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_READ_CAPACITY, true); break; case SCSI_READ_DISC_INFORMATION: if (s->cNotifiedMediaChange > 0) { s->cNotifiedMediaChange-- ; atapiCmdError(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */ break; } else if (!s->pDrvMount->pfnIsMounted(s->pDrvMount)) { atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT); break; } cbMax = ataBE2H_U16(pbPacket + 7); ataStartTransfer(s, RT_MIN(cbMax, 34), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_READ_DISC_INFORMATION, true); break; case SCSI_READ_TRACK_INFORMATION: if (s->cNotifiedMediaChange > 0) { s->cNotifiedMediaChange-- ; atapiCmdError(s, SCSI_SENSE_UNIT_ATTENTION, SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED); /* media changed */ break; } else if (!s->pDrvMount->pfnIsMounted(s->pDrvMount)) { atapiCmdError(s, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT); break; } cbMax = ataBE2H_U16(pbPacket + 7); 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. */ cbMax = ataBE2H_U16(pbPacket + 7); ataStartTransfer(s, RT_MIN(cbMax, 32), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_GET_CONFIGURATION, true); break; case SCSI_INQUIRY: cbMax = pbPacket[4]; ataStartTransfer(s, RT_MIN(cbMax, 36), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_INQUIRY, true); break; default: atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_OPCODE); break; } } /* * Parse ATAPI commands, passing them directly to the CD/DVD drive. */ static void atapiParseCmdPassthrough(ATADevState *s) { const uint8_t *pbPacket; uint8_t *pbBuf; uint32_t cSectors, iATAPILBA; uint32_t cbTransfer = 0; PDMBLOCKTXDIR uTxDir = PDMBLOCKTXDIR_NONE; pbPacket = s->aATAPICmd; pbBuf = s->CTXSUFF(pbIOBuffer); switch (pbPacket[0]) { case SCSI_BLANK: goto sendcmd; case SCSI_CLOSE_TRACK_SESSION: goto sendcmd; case SCSI_ERASE_10: iATAPILBA = ataBE2H_U32(pbPacket + 2); cbTransfer = ataBE2H_U16(pbPacket + 7); Log2(("ATAPI PT: lba %d\n", iATAPILBA)); uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_FORMAT_UNIT: cbTransfer = s->uATARegLCyl | (s->uATARegHCyl << 8); /* use ATAPI transfer length */ uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_GET_CONFIGURATION: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_GET_EVENT_STATUS_NOTIFICATION: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_GET_PERFORMANCE: cbTransfer = s->uATARegLCyl | (s->uATARegHCyl << 8); /* use ATAPI transfer length */ uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_INQUIRY: cbTransfer = pbPacket[4]; uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_LOAD_UNLOAD_MEDIUM: goto sendcmd; case SCSI_MECHANISM_STATUS: cbTransfer = ataBE2H_U16(pbPacket + 8); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_MODE_SELECT_10: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_MODE_SENSE_10: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; 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; case SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL: /** @todo do not forget to unlock when a VM is shut down */ goto sendcmd; case SCSI_READ_10: iATAPILBA = ataBE2H_U32(pbPacket + 2); cSectors = ataBE2H_U16(pbPacket + 7); Log2(("ATAPI PT: lba %d sectors %d\n", iATAPILBA, cSectors)); s->cbATAPISector = 2048; /**< @todo this size is not always correct */ cbTransfer = cSectors * s->cbATAPISector; uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_12: iATAPILBA = ataBE2H_U32(pbPacket + 2); cSectors = ataBE2H_U32(pbPacket + 6); Log2(("ATAPI PT: lba %d sectors %d\n", iATAPILBA, cSectors)); s->cbATAPISector = 2048; /**< @todo this size is not always correct */ cbTransfer = cSectors * s->cbATAPISector; uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_BUFFER: cbTransfer = ataBE2H_U24(pbPacket + 6); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_BUFFER_CAPACITY: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_CAPACITY: cbTransfer = 8; uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_CD: s->cbATAPISector = 2048; /**< @todo this size is not always correct */ cbTransfer = ataBE2H_U24(pbPacket + 6) / s->cbATAPISector * s->cbATAPISector; uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_CD_MSF: cSectors = ataMSF2LBA(pbPacket + 6) - ataMSF2LBA(pbPacket + 3); if (cSectors > 32) cSectors = 32; /* Limit transfer size to 64~74K. Safety first. In any case this can only harm software doing CDDA extraction. */ s->cbATAPISector = 2048; /**< @todo this size is not always correct */ cbTransfer = cSectors * s->cbATAPISector; uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_DISC_INFORMATION: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_DVD_STRUCTURE: cbTransfer = ataBE2H_U16(pbPacket + 8); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_FORMAT_CAPACITIES: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_SUBCHANNEL: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_TOC_PMA_ATIP: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_READ_TRACK_INFORMATION: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_REPAIR_TRACK: goto sendcmd; case SCSI_REPORT_KEY: cbTransfer = ataBE2H_U16(pbPacket + 8); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_REQUEST_SENSE: cbTransfer = pbPacket[4]; if (s->uATAPISenseKey != SCSI_SENSE_NONE) { ataStartTransfer(s, RT_MIN(cbTransfer, 18), PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_ATAPI_CMD, ATAFN_SS_ATAPI_REQUEST_SENSE, true); break; } uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; goto sendcmd; case SCSI_RESERVE_TRACK: goto sendcmd; case SCSI_SCAN: goto sendcmd; case SCSI_SEEK_10: goto sendcmd; case SCSI_SEND_CUE_SHEET: cbTransfer = ataBE2H_U24(pbPacket + 6); uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_SEND_DVD_STRUCTURE: cbTransfer = ataBE2H_U16(pbPacket + 8); uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_SEND_EVENT: cbTransfer = ataBE2H_U16(pbPacket + 8); uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_SEND_KEY: cbTransfer = ataBE2H_U16(pbPacket + 8); uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_SEND_OPC_INFORMATION: cbTransfer = ataBE2H_U16(pbPacket + 7); uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_SET_CD_SPEED: goto sendcmd; case SCSI_SET_READ_AHEAD: goto sendcmd; case SCSI_SET_STREAMING: cbTransfer = ataBE2H_U16(pbPacket + 9); uTxDir = PDMBLOCKTXDIR_TO_DEVICE; 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: iATAPILBA = ataBE2H_U32(pbPacket + 2); cSectors = ataBE2H_U16(pbPacket + 7); Log2(("ATAPI PT: lba %d sectors %d\n", iATAPILBA, cSectors)); #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. */ cbTransfer = cSectors; #else s->cbATAPISector = 2048; /**< @todo this size is not always correct */ cbTransfer = cSectors * s->cbATAPISector; #endif uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_WRITE_12: iATAPILBA = ataBE2H_U32(pbPacket + 2); cSectors = ataBE2H_U32(pbPacket + 6); Log2(("ATAPI PT: lba %d sectors %d\n", iATAPILBA, cSectors)); #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. */ cbTransfer = cSectors; #else s->cbATAPISector = 2048; /**< @todo this size is not always correct */ cbTransfer = cSectors * s->cbATAPISector; #endif uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_WRITE_AND_VERIFY_10: iATAPILBA = ataBE2H_U32(pbPacket + 2); cSectors = ataBE2H_U16(pbPacket + 7); Log2(("ATAPI PT: lba %d sectors %d\n", iATAPILBA, cSectors)); /* The sector size is determined by the async I/O thread. */ s->cbATAPISector = 0; /* Preliminary, will be corrected once the sector size is known. */ cbTransfer = cSectors; uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; case SCSI_WRITE_BUFFER: switch (pbPacket[1] & 0x1f) { 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(("PIIX3 ATA: LUN#%d: CD-ROM passthrough command attempted to update firmware, blocked\n", s->iLUN)); atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET); break; default: cbTransfer = ataBE2H_U16(pbPacket + 6); uTxDir = PDMBLOCKTXDIR_TO_DEVICE; goto sendcmd; } break; case SCSI_REPORT_LUNS: /* Not part of MMC-3, but used by Windows. */ cbTransfer = ataBE2H_U32(pbPacket + 6); uTxDir = PDMBLOCKTXDIR_FROM_DEVICE; 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. */ atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_OPCODE); break; default: LogRel(("PIIX3 ATA: LUN#%d: passthrough unimplemented for command %#x\n", s->iLUN, pbPacket[0])); atapiCmdError(s, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_OPCODE); break; sendcmd: /* Send a command to the drive, passing data in/out as required. */ Log2(("ATAPI PT: max size %d\n", cbTransfer)); Assert(cbTransfer <= s->cbIOBuffer); if (cbTransfer == 0) uTxDir = PDMBLOCKTXDIR_NONE; ataStartTransfer(s, cbTransfer, uTxDir, ATAFN_BT_ATAPI_PASSTHROUGH_CMD, ATAFN_SS_ATAPI_PASSTHROUGH, true); } } static void atapiParseCmd(ATADevState *s) { const uint8_t *pbPacket; pbPacket = s->aATAPICmd; #ifdef DEBUG Log(("%s: LUN#%d DMA=%d CMD=%#04x \"%s\"\n", __FUNCTION__, s->iLUN, s->fDMA, pbPacket[0], g_apszSCSICmdNames[pbPacket[0]])); #else /* !DEBUG */ Log(("%s: LUN#%d DMA=%d CMD=%#04x\n", __FUNCTION__, s->iLUN, s->fDMA, pbPacket[0])); #endif /* !DEBUG */ Log2(("%s: limit=%#x packet: %.*Vhxs\n", __FUNCTION__, s->uATARegLCyl | (s->uATARegHCyl << 8), ATAPI_PACKET_SIZE, pbPacket)); if (s->fATAPIPassthrough) atapiParseCmdPassthrough(s); else atapiParseCmdVirtualATAPI(s); } static bool ataPacketSS(ATADevState *s) { s->fDMA = !!(s->uATARegFeature & 1); memcpy(s->aATAPICmd, s->CTXSUFF(pbIOBuffer), ATAPI_PACKET_SIZE); s->uTxDir = PDMBLOCKTXDIR_NONE; s->cbTotalTransfer = 0; s->cbElementaryTransfer = 0; atapiParseCmd(s); return false; } /** * Called when a media is mounted. * * @param pInterface Pointer to the interface structure containing the called function pointer. */ static DECLCALLBACK(void) ataMountNotify(PPDMIMOUNTNOTIFY pInterface) { ATADevState *pIf = PDMIMOUNTNOTIFY_2_ATASTATE(pInterface); Log(("%s: changing LUN#%d\n", __FUNCTION__, pIf->iLUN)); /* Ignore the call if we're called while being attached. */ if (!pIf->pDrvBlock) return; if (pIf->fATAPI) pIf->cTotalSectors = pIf->pDrvBlock->pfnGetSize(pIf->pDrvBlock) / 2048; else pIf->cTotalSectors = pIf->pDrvBlock->pfnGetSize(pIf->pDrvBlock) / 512; /* Report media changed in TEST UNIT and other (probably incorrect) places. */ if (pIf->cNotifiedMediaChange < 2) pIf->cNotifiedMediaChange = 2; } /** * Called when a media is unmounted * @param pInterface Pointer to the interface structure containing the called function pointer. */ static DECLCALLBACK(void) ataUnmountNotify(PPDMIMOUNTNOTIFY pInterface) { ATADevState *pIf = PDMIMOUNTNOTIFY_2_ATASTATE(pInterface); Log(("%s:\n", __FUNCTION__)); 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. */ pIf->cNotifiedMediaChange = 4; } static void ataPacketBT(ATADevState *s) { s->cbElementaryTransfer = s->cbTotalTransfer; s->uATARegNSector = (s->uATARegNSector & ~7) | ATAPI_INT_REASON_CD; Log2(("%s: interrupt reason %#04x\n", __FUNCTION__, s->uATARegNSector)); ataSetStatusValue(s, ATA_STAT_READY); } static void ataResetDevice(ATADevState *s) { s->cMultSectors = ATA_MAX_MULT_SECTORS; s->cNotifiedMediaChange = 0; s->fIrqPending = true; /* Ensure that the interrupt is unset. */ ataUnsetIRQ(s); s->uATARegSelect = 0x20; ataSetStatusValue(s, ATA_STAT_READY); 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->uATATransferMode = ATA_MODE_UDMA | 2; /* PIIX3 supports only up to UDMA2 */ s->uATARegFeature = 0; } static bool ataExecuteDeviceDiagnosticSS(ATADevState *s) { ataSetSignature(s); ataSetStatusValue(s, 0); /* NOTE: READY is _not_ set */ s->uATARegError = 0x01; return false; } static void ataParseCmd(ATADevState *s, uint8_t cmd) { #ifdef DEBUG Log(("%s: LUN#%d CMD=%#04x \"%s\"\n", __FUNCTION__, s->iLUN, cmd, g_apszATACmdNames[cmd])); #else /* !DEBUG */ Log(("%s: LUN#%d CMD=%#04x\n", __FUNCTION__, s->iLUN, cmd)); #endif /* !DEBUG */ s->fLBA48 = false; s->fDMA = false; s->uATARegCommand = cmd; switch (cmd) { case ATA_IDENTIFY_DEVICE: if (s->pDrvBlock && !s->fATAPI) ataStartTransfer(s, 512, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_NULL, ATAFN_SS_IDENTIFY, false); else { if (s->fATAPI) ataSetSignature(s); ataCmdError(s, ABRT_ERR); ataSetIRQ(s); /* Shortcut, do not use AIO thread. */ } break; case ATA_INITIALIZE_DEVICE_PARAMETERS: 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 > ATA_MAX_MULT_SECTORS || s->uATARegNSector == 0 || (s->uATARegNSector & (s->uATARegNSector - 1)) != 0) { ataCmdError(s, ABRT_ERR); } else { Log2(("%s: set multi sector count to %d\n", __FUNCTION__, s->uATARegNSector)); s->cMultSectors = s->uATARegNSector; ataCmdOK(s, 0); } ataSetIRQ(s); /* Shortcut, do not use AIO thread. */ break; case ATA_READ_VERIFY_SECTORS_EXT: s->fLBA48 = true; case ATA_READ_VERIFY_SECTORS: case ATA_READ_VERIFY_SECTORS_WITHOUT_RETRIES: /* 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: case ATA_READ_SECTORS_WITHOUT_RETRIES: 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: case ATA_WRITE_SECTORS_WITHOUT_RETRIES: 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: case ATA_READ_DMA_WITHOUT_RETRIES: if (!s->pDrvBlock) goto abort_cmd; s->cSectorsPerIRQ = ATA_MAX_MULT_SECTORS; 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: case ATA_WRITE_DMA_WITHOUT_RETRIES: if (!s->pDrvBlock) goto abort_cmd; s->cSectorsPerIRQ = ATA_MAX_MULT_SECTORS; s->fDMA = true; ataStartTransfer(s, ataGetNSectors(s) * 512, PDMBLOCKTXDIR_TO_DEVICE, ATAFN_BT_READ_WRITE_SECTORS, ATAFN_SS_WRITE_SECTORS, false); break; case ATA_READ_NATIVE_MAX_ADDRESS_EXT: s->fLBA48 = true; ataSetSector(s, s->cTotalSectors - 1); ataCmdOK(s, 0); ataSetIRQ(s); /* Shortcut, do not use AIO thread. */ break; case ATA_READ_NATIVE_MAX_ADDRESS: ataSetSector(s, RT_MIN(s->cTotalSectors, 1 << 28) - 1); ataCmdOK(s, 0); ataSetIRQ(s); /* Shortcut, do not use AIO thread. */ break; case ATA_CHECK_POWER_MODE: s->uATARegNSector = 0xff; /* drive active or idle */ ataCmdOK(s, 0); ataSetIRQ(s); /* Shortcut, do not use AIO thread. */ break; case ATA_SET_FEATURES: Log2(("%s: feature=%#x\n", __FUNCTION__, s->uATARegFeature)); if (!s->pDrvBlock) goto abort_cmd; switch (s->uATARegFeature) { case 0x02: /* write cache enable */ Log2(("%s: write cache enable\n", __FUNCTION__)); ataCmdOK(s, ATA_STAT_SEEK); ataSetIRQ(s); /* Shortcut, do not use AIO thread. */ break; case 0xaa: /* read look-ahead enable */ Log2(("%s: read look-ahead enable\n", __FUNCTION__)); ataCmdOK(s, ATA_STAT_SEEK); ataSetIRQ(s); /* Shortcut, do not use AIO thread. */ break; case 0x55: /* read look-ahead disable */ Log2(("%s: read look-ahead disable\n", __FUNCTION__)); ataCmdOK(s, ATA_STAT_SEEK); ataSetIRQ(s); /* Shortcut, do not use AIO thread. */ break; case 0x82: /* write cache disable */ Log2(("%s: write cache disable\n", __FUNCTION__)); /* As per the ATA/ATAPI-6 specs, a write cache disable * command MUST flush the write buffers to disc. */ ataStartTransfer(s, 0, PDMBLOCKTXDIR_NONE, ATAFN_BT_NULL, ATAFN_SS_FLUSH, false); break; case 0x03: { /* set transfer mode */ Log2(("%s: transfer mode %#04x\n", __FUNCTION__, s->uATARegNSector)); 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: if (!s->pDrvBlock || s->fATAPI) goto abort_cmd; ataStartTransfer(s, 0, PDMBLOCKTXDIR_NONE, ATAFN_BT_NULL, ATAFN_SS_FLUSH, false); 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 */ case ATA_IDENTIFY_PACKET_DEVICE: if (s->fATAPI) ataStartTransfer(s, 512, PDMBLOCKTXDIR_FROM_DEVICE, ATAFN_BT_NULL, ATAFN_SS_ATAPI_IDENTIFY, false); else { ataCmdError(s, ABRT_ERR); ataSetIRQ(s); /* Shortcut, do not use AIO thread. */ } break; case ATA_EXECUTE_DEVICE_DIAGNOSTIC: 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: abort_cmd: 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 pData Pointer to the controller data. * @param cMillies How long to wait (total). */ static bool ataWaitForAsyncIOIsIdle(PATACONTROLLER pCtl, unsigned cMillies) { uint64_t u64Start; /* * Wait for any pending async operation to finish */ u64Start = RTTimeMilliTS(); for (;;) { if (ataAsyncIOIsIdle(pCtl, false)) return true; if (RTTimeMilliTS() - u64Start >= cMillies) break; /* Sleep for a bit. */ RTThreadSleep(100); } return false; } #endif /* IN_RING3 */ static int ataIOPortWriteU8(PATACONTROLLER pCtl, uint32_t addr, uint32_t val) { Log2(("%s: write addr=%#x val=%#04x\n", __FUNCTION__, addr, val)); addr &= 7; switch (addr) { case 0: break; case 1: /* feature register */ /* NOTE: data is written to the two drives */ pCtl->aIfs[0].uATARegDevCtl &= ~ATA_DEVCTL_HOB; pCtl->aIfs[1].uATARegDevCtl &= ~ATA_DEVCTL_HOB; pCtl->aIfs[0].uATARegFeatureHOB = pCtl->aIfs[0].uATARegFeature; pCtl->aIfs[1].uATARegFeatureHOB = pCtl->aIfs[1].uATARegFeature; pCtl->aIfs[0].uATARegFeature = val; pCtl->aIfs[1].uATARegFeature = val; break; case 2: /* sector count */ pCtl->aIfs[0].uATARegDevCtl &= ~ATA_DEVCTL_HOB; pCtl->aIfs[1].uATARegDevCtl &= ~ATA_DEVCTL_HOB; pCtl->aIfs[0].uATARegNSectorHOB = pCtl->aIfs[0].uATARegNSector; pCtl->aIfs[1].uATARegNSectorHOB = pCtl->aIfs[1].uATARegNSector; pCtl->aIfs[0].uATARegNSector = val; pCtl->aIfs[1].uATARegNSector = val; break; case 3: /* sector number */ pCtl->aIfs[0].uATARegDevCtl &= ~ATA_DEVCTL_HOB; pCtl->aIfs[1].uATARegDevCtl &= ~ATA_DEVCTL_HOB; pCtl->aIfs[0].uATARegSectorHOB = pCtl->aIfs[0].uATARegSector; pCtl->aIfs[1].uATARegSectorHOB = pCtl->aIfs[1].uATARegSector; pCtl->aIfs[0].uATARegSector = val; pCtl->aIfs[1].uATARegSector = val; break; case 4: /* cylinder low */ pCtl->aIfs[0].uATARegDevCtl &= ~ATA_DEVCTL_HOB; pCtl->aIfs[1].uATARegDevCtl &= ~ATA_DEVCTL_HOB; pCtl->aIfs[0].uATARegLCylHOB = pCtl->aIfs[0].uATARegLCyl; pCtl->aIfs[1].uATARegLCylHOB = pCtl->aIfs[1].uATARegLCyl; pCtl->aIfs[0].uATARegLCyl = val; pCtl->aIfs[1].uATARegLCyl = val; break; case 5: /* cylinder high */ pCtl->aIfs[0].uATARegDevCtl &= ~ATA_DEVCTL_HOB; pCtl->aIfs[1].uATARegDevCtl &= ~ATA_DEVCTL_HOB; pCtl->aIfs[0].uATARegHCylHOB = pCtl->aIfs[0].uATARegHCyl; pCtl->aIfs[1].uATARegHCylHOB = pCtl->aIfs[1].uATARegHCyl; pCtl->aIfs[0].uATARegHCyl = val; pCtl->aIfs[1].uATARegHCyl = val; break; case 6: /* drive/head */ pCtl->aIfs[0].uATARegSelect = (val & ~0x10) | 0xa0; pCtl->aIfs[1].uATARegSelect = (val | 0x10) | 0xa0; if ((((val >> 4)) & 1) != pCtl->iSelectedIf) { PPDMDEVINS pDevIns = CONTROLLER_2_DEVINS(pCtl); /* select another drive */ pCtl->iSelectedIf = (val >> 4) & 1; /* The IRQ line is multiplexed between the two drives, so * update the state when switching to another drive. */ if (pCtl->aIfs[pCtl->iSelectedIf].fIrqPending) { if (pCtl->irq == 16) PDMDevHlpPCISetIrqNoWait(pDevIns, 0, 1); else PDMDevHlpISASetIrqNoWait(pDevIns, pCtl->irq, 1); } else { if (pCtl->irq == 16) PDMDevHlpPCISetIrqNoWait(pDevIns, 0, 0); else PDMDevHlpISASetIrqNoWait(pDevIns, pCtl->irq, 0); } } break; default: case 7: /* command */ /* ignore commands to non existant slave */ if (pCtl->iSelectedIf && !pCtl->aIfs[pCtl->iSelectedIf].pDrvBlock) break; #ifndef IN_RING3 /* Don't do anything complicated in GC */ return VINF_IOM_HC_IOPORT_WRITE; #else /* IN_RING3 */ ataParseCmd(&pCtl->aIfs[pCtl->iSelectedIf], val); #endif /* !IN_RING3 */ } return VINF_SUCCESS; } static void ataIOPortReadU8(PATACONTROLLER pCtl, uint32_t addr, uint32_t *pu32) { ATADevState *s = &pCtl->aIfs[pCtl->iSelectedIf]; uint32_t val; bool fHOB; fHOB = !!(s->uATARegDevCtl & (1 << 7)); 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 precise effects of reading back the error/feature register. * 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; case 6: /* drive/head */ /* 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). */ if (!pCtl->aIfs[0].pDrvBlock && !pCtl->aIfs[1].pDrvBlock) val = 0; else val = s->uATARegSelect; break; default: case 7: /* primary status */ { if (!s->pDrvBlock) val = 0; else val = s->uATARegStatus; ataUnsetIRQ(s); #ifdef IN_RING3 /* 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. */ if (val & ATA_STAT_BUSY) { PDMCritSectLeave(&pCtl->lock); RTThreadYield(); { STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); } val = s->uATARegStatus; } #endif break; } } Log2(("%s: addr=%#x val=%#04x\n", __FUNCTION__, addr, val)); *pu32 = val; } static uint32_t ataStatusRead(PATACONTROLLER pCtl, uint32_t addr) { ATADevState *s = &pCtl->aIfs[pCtl->iSelectedIf]; uint32_t val; if ((!pCtl->aIfs[0].pDrvBlock && !pCtl->aIfs[1].pDrvBlock) || (pCtl->iSelectedIf == 1 && !s->pDrvBlock)) val = 0; else val = s->uATARegStatus; Log2(("%s: addr=%#x val=%#04x\n", __FUNCTION__, addr, val)); return val; } static int ataControlWrite(PATACONTROLLER pCtl, uint32_t addr, uint32_t val) { #ifndef IN_RING3 if ((val ^ pCtl->aIfs[0].uATARegDevCtl) & ATA_DEVCTL_RESET) return VINF_IOM_HC_IOPORT_WRITE; /* The RESET stuff is too complicated for GC. */ #endif /* !IN_RING3 */ Log2(("%s: addr=%#x val=%#04x\n", __FUNCTION__, addr, val)); /* RESET is common for both drives attached to a controller. */ if (!(pCtl->aIfs[0].uATARegDevCtl & ATA_DEVCTL_RESET) && (val & ATA_DEVCTL_RESET)) { #ifdef IN_RING3 /* Software RESET low to high */ LogRel(("PIIX3 ATA: Ctl#%d: RESET, DevSel=%d AIOIf=%d CmdIf0=%#04x CmdIf1=%#04x\n", ATACONTROLLER_IDX(pCtl), pCtl->iSelectedIf, pCtl->iAIOIf, pCtl->aIfs[0].uATARegCommand, pCtl->aIfs[1].uATARegCommand)); pCtl->fReset = true; /* 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; for (uint32_t i = 0; i < RT_ELEMENTS(pCtl->aIfs); i++) { ataResetDevice(&pCtl->aIfs[i]); /* The following cannot be done using ataSetStatusValue() since the * reset flag is already set, which suppresses all status changes. */ pCtl->aIfs[i].uATARegStatus = ATA_STAT_BUSY | ATA_STAT_SEEK; Log2(("%s: LUN#%d status %#04x\n", __FUNCTION__, pCtl->aIfs[i].iLUN, pCtl->aIfs[i].uATARegStatus)); pCtl->aIfs[i].uATARegError = 0x01; } ataAsyncIOClearRequests(pCtl); Log2(("%s: Ctl#%d: message to async I/O thread, resetA\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); if (val & ATA_DEVCTL_HOB) { val &= ~ATA_DEVCTL_HOB; Log2(("%s: ignored setting HOB\n", __FUNCTION__)); } ataAsyncIOPutRequest(pCtl, &ataResetARequest); #else /* !IN_RING3 */ AssertMsgFailed(("RESET handling is too complicated for GC\n")); #endif /* IN_RING3 */ } else if ((pCtl->aIfs[0].uATARegDevCtl & ATA_DEVCTL_RESET) && !(val & ATA_DEVCTL_RESET)) { #ifdef IN_RING3 /* Software RESET high to low */ Log(("%s: deasserting RESET\n", __FUNCTION__)); Log2(("%s: Ctl#%d: message to async I/O thread, resetC\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); if (val & ATA_DEVCTL_HOB) { val &= ~ATA_DEVCTL_HOB; Log2(("%s: ignored setting HOB\n", __FUNCTION__)); } ataAsyncIOPutRequest(pCtl, &ataResetCRequest); #else /* !IN_RING3 */ AssertMsgFailed(("RESET handling is too complicated for GC\n")); #endif /* IN_RING3 */ } if (val & ATA_DEVCTL_HOB) Log2(("%s: set HOB\n", __FUNCTION__)); pCtl->aIfs[0].uATARegDevCtl = val; pCtl->aIfs[1].uATARegDevCtl = val; return VINF_SUCCESS; } #ifdef IN_RING3 DECLINLINE(void) ataPIOTransferFinish(PATACONTROLLER pCtl, ATADevState *s) { /* Do not interfere with RESET processing if the PIO transfer finishes * while the RESET line is asserted. */ if (pCtl->fReset) { Log2(("%s: Ctl#%d: suppressed continuing PIO transfer as RESET is active\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); return; } ataUnsetStatus(s, ATA_STAT_READY | ATA_STAT_DRQ); ataSetStatus(s, ATA_STAT_BUSY); Log2(("%s: Ctl#%d: message to async I/O thread, continuing PIO transfer\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); ataAsyncIOPutRequest(pCtl, &ataPIORequest); } #endif /* IN_RING3 */ static int ataDataWrite(PATACONTROLLER pCtl, uint32_t addr, uint32_t cbSize, const uint8_t *pbBuf) { ATADevState *s = &pCtl->aIfs[pCtl->iSelectedIf]; uint8_t *p; if (s->iIOBufferPIODataStart < s->iIOBufferPIODataEnd) { Assert(s->uTxDir == PDMBLOCKTXDIR_TO_DEVICE); p = s->CTXSUFF(pbIOBuffer) + s->iIOBufferPIODataStart; #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. */ if (s->iIOBufferPIODataStart + cbSize < s->iIOBufferPIODataEnd) { memcpy(p, pbBuf, cbSize); s->iIOBufferPIODataStart += cbSize; } else return VINF_IOM_HC_IOPORT_WRITE; #else /* IN_RING3 */ memcpy(p, pbBuf, cbSize); s->iIOBufferPIODataStart += cbSize; if (s->iIOBufferPIODataStart >= s->iIOBufferPIODataEnd) ataPIOTransferFinish(pCtl, s); #endif /* !IN_RING3 */ } else Log2(("%s: DUMMY data\n", __FUNCTION__)); Log3(("%s: addr=%#x val=%.*Vhxs\n", __FUNCTION__, addr, cbSize, pbBuf)); return VINF_SUCCESS; } static int ataDataRead(PATACONTROLLER pCtl, uint32_t addr, uint32_t cbSize, uint8_t *pbBuf) { ATADevState *s = &pCtl->aIfs[pCtl->iSelectedIf]; uint8_t *p; if (s->iIOBufferPIODataStart < s->iIOBufferPIODataEnd) { Assert(s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE); p = s->CTXSUFF(pbIOBuffer) + s->iIOBufferPIODataStart; #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. */ if (s->iIOBufferPIODataStart + cbSize < s->iIOBufferPIODataEnd) { memcpy(pbBuf, p, cbSize); s->iIOBufferPIODataStart += cbSize; } else return VINF_IOM_HC_IOPORT_READ; #else /* IN_RING3 */ memcpy(pbBuf, p, cbSize); s->iIOBufferPIODataStart += cbSize; if (s->iIOBufferPIODataStart >= s->iIOBufferPIODataEnd) ataPIOTransferFinish(pCtl, s); #endif /* !IN_RING3 */ } else { Log2(("%s: DUMMY data\n", __FUNCTION__)); memset(pbBuf, '\xff', cbSize); } Log3(("%s: addr=%#x val=%.*Vhxs\n", __FUNCTION__, addr, cbSize, pbBuf)); return VINF_SUCCESS; } #ifdef IN_RING3 /* Attempt to guess the LCHS disk geometry from the MS-DOS master boot * record (partition table). */ static int ataGuessDiskLCHS(ATADevState *s, uint32_t *pcCylinders, uint32_t *pcHeads, uint32_t *pcSectors) { uint8_t aMBR[512], *p; int rc; uint32_t iEndHead, iEndSector, cCHSCylinders, cCHSHeads, cCHSSectors; if (s->fATAPI || !s->pDrvBlock) return VERR_INVALID_PARAMETER; rc = s->pDrvBlock->pfnRead(s->pDrvBlock, 0, aMBR, 1 * 512); if (VBOX_FAILURE(rc)) return rc; /* Test MBR magic number. */ if (aMBR[510] != 0x55 || aMBR[511] != 0xaa) return VERR_INVALID_PARAMETER; for (uint32_t i = 0; i < 4; i++) { /* Figure out the start of a partition table entry. */ p = &aMBR[0x1be + i * 16]; iEndHead = p[5]; iEndSector = p[6] & 63; if ((p[12] | p[13] | p[14] | p[15]) && iEndSector & iEndHead) { /* Assumption: partition terminates on a cylinder boundary. */ cCHSHeads = iEndHead + 1; cCHSSectors = iEndSector; cCHSCylinders = s->cTotalSectors / (cCHSHeads * cCHSSectors); if (cCHSCylinders >= 1) { cCHSCylinders = RT_MIN(cCHSCylinders, 16383); *pcHeads = cCHSHeads; *pcSectors = cCHSSectors; *pcCylinders = cCHSCylinders; Log(("%s: LCHS=%d %d %d\n", __FUNCTION__, cCHSCylinders, cCHSHeads, cCHSSectors)); return VINF_SUCCESS; } } } return VERR_INVALID_PARAMETER; } static void ataDMATransferStop(ATADevState *s) { s->cbTotalTransfer = 0; s->cbElementaryTransfer = 0; s->iBeginTransfer = ATAFN_BT_NULL; s->iSourceSink = ATAFN_SS_NULL; } /** * Perform the entire DMA transfer in one go (unless a source/sink operation * 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. */ static void ataDMATransfer(PATACONTROLLER pCtl) { PPDMDEVINS pDevIns = CONTROLLER_2_DEVINS(pCtl); ATADevState *s = &pCtl->aIfs[pCtl->iAIOIf]; bool fRedo; RTGCPHYS pDesc; uint32_t cbTotalTransfer, cbElementaryTransfer; uint32_t iIOBufferCur, iIOBufferEnd; uint32_t dmalen; PDMBLOCKTXDIR uTxDir; bool fLastDesc = false; Assert(sizeof(BMDMADesc) == 8); fRedo = pCtl->fRedo; if (RT_LIKELY(!fRedo)) Assert(s->cbTotalTransfer); uTxDir = (PDMBLOCKTXDIR)s->uTxDir; cbTotalTransfer = s->cbTotalTransfer; cbElementaryTransfer = s->cbElementaryTransfer; 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. */ PDMCritSectLeave(&pCtl->lock); Log2(("%s: %s tx_size=%d elem_tx_size=%d index=%d end=%d\n", __FUNCTION__, uTxDir == PDMBLOCKTXDIR_FROM_DEVICE ? "T2I" : "I2T", cbTotalTransfer, cbElementaryTransfer, iIOBufferCur, iIOBufferEnd)); for (pDesc = pCtl->pFirstDMADesc; pDesc <= pCtl->pLastDMADesc; pDesc += sizeof(BMDMADesc)) { BMDMADesc DMADesc; RTGCPHYS pBuffer; uint32_t cbBuffer; if (RT_UNLIKELY(fRedo)) { pBuffer = pCtl->pRedoDMABuffer; cbBuffer = pCtl->cbRedoDMABuffer; fLastDesc = pCtl->fRedoDMALastDesc; } else { PDMDevHlpPhysRead(pDevIns, pDesc, &DMADesc, sizeof(BMDMADesc)); pBuffer = RT_LE2H_U32(DMADesc.pBuffer); cbBuffer = RT_LE2H_U32(DMADesc.cbBuffer); fLastDesc = !!(cbBuffer & 0x80000000); cbBuffer &= 0xfffe; if (cbBuffer == 0) cbBuffer = 0x10000; if (cbBuffer > cbTotalTransfer) cbBuffer = cbTotalTransfer; } while (RT_UNLIKELY(fRedo) || (cbBuffer && cbTotalTransfer)) { if (RT_LIKELY(!fRedo)) { dmalen = RT_MIN(cbBuffer, iIOBufferEnd - iIOBufferCur); Log2(("%s: DMA desc %#010x: addr=%#010x size=%#010x\n", __FUNCTION__, (int)pDesc, pBuffer, cbBuffer)); if (uTxDir == PDMBLOCKTXDIR_FROM_DEVICE) PDMDevHlpPhysWrite(pDevIns, pBuffer, s->CTXSUFF(pbIOBuffer) + iIOBufferCur, dmalen); else PDMDevHlpPhysRead(pDevIns, pBuffer, s->CTXSUFF(pbIOBuffer) + iIOBufferCur, dmalen); iIOBufferCur += dmalen; cbTotalTransfer -= dmalen; cbBuffer -= dmalen; pBuffer += dmalen; } if ( iIOBufferCur == iIOBufferEnd && (uTxDir == PDMBLOCKTXDIR_TO_DEVICE || cbTotalTransfer)) { if (uTxDir == PDMBLOCKTXDIR_FROM_DEVICE && cbElementaryTransfer > cbTotalTransfer) cbElementaryTransfer = cbTotalTransfer; { STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); } /* 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; s->cbElementaryTransfer = cbElementaryTransfer; s->cbTotalTransfer = cbTotalTransfer; Log2(("%s: calling source/sink function\n", __FUNCTION__)); fRedo = g_apfnSourceSinkFuncs[s->iSourceSink](s); if (RT_UNLIKELY(fRedo)) { pCtl->pFirstDMADesc = pDesc; pCtl->pRedoDMABuffer = pBuffer; pCtl->cbRedoDMABuffer = cbBuffer; pCtl->fRedoDMALastDesc = fLastDesc; } else { cbTotalTransfer = s->cbTotalTransfer; cbElementaryTransfer = s->cbElementaryTransfer; if (uTxDir == PDMBLOCKTXDIR_TO_DEVICE && cbElementaryTransfer > cbTotalTransfer) cbElementaryTransfer = cbTotalTransfer; iIOBufferCur = 0; iIOBufferEnd = cbElementaryTransfer; } pCtl->fRedo = fRedo; } else { /* This forces the loop to exit immediately. */ pDesc = pCtl->pLastDMADesc + 1; } PDMCritSectLeave(&pCtl->lock); if (RT_UNLIKELY(fRedo)) break; } } if (RT_UNLIKELY(fRedo)) break; /* end of transfer */ if (!cbTotalTransfer || fLastDesc) break; { STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); } if (!(pCtl->BmDma.u8Cmd & BM_CMD_START) || pCtl->fReset) { LogRel(("PIIX3 ATA: Ctl#%d: ABORT DMA%s\n", ATACONTROLLER_IDX(pCtl), pCtl->fReset ? " due to RESET" : "")); if (!pCtl->fReset) ataDMATransferStop(s); /* This forces the loop to exit immediately. */ pDesc = pCtl->pLastDMADesc + 1; } PDMCritSectLeave(&pCtl->lock); } { STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); } if (RT_UNLIKELY(fRedo)) return; if (fLastDesc) pCtl->BmDma.u8Status &= ~BM_STATUS_DMAING; s->cbTotalTransfer = cbTotalTransfer; s->cbElementaryTransfer = cbElementaryTransfer; s->iIOBufferCur = iIOBufferCur; s->iIOBufferEnd = iIOBufferEnd; } static void ataPIOTransfer(PATACONTROLLER pCtl) { ATADevState *s; s = &pCtl->aIfs[pCtl->iAIOIf]; Log3(("%s: if=%p\n", __FUNCTION__, s)); if (s->cbTotalTransfer && s->iIOBufferCur > s->iIOBufferEnd) { LogRel(("PIIX3 ATA: LUN#%d: %s data in the middle of a PIO transfer - VERY SLOW\n", s->iLUN, s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE ? "storing" : "loading")); /* 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 * until the transfer to/from the storage medium is completed. */ if (s->iSourceSink != ATAFN_SS_NULL) { bool fRedo; uint8_t status = s->uATARegStatus; ataSetStatusValue(s, ATA_STAT_BUSY); Log2(("%s: calling source/sink function\n", __FUNCTION__)); fRedo = g_apfnSourceSinkFuncs[s->iSourceSink](s); pCtl->fRedo = fRedo; if (RT_UNLIKELY(fRedo)) return; ataSetStatusValue(s, status); s->iIOBufferCur = 0; s->iIOBufferEnd = s->cbElementaryTransfer; } } if (s->cbTotalTransfer) { if (s->fATAPITransfer) ataPIOTransferLimitATAPI(s); if (s->uTxDir == PDMBLOCKTXDIR_TO_DEVICE && s->cbElementaryTransfer > s->cbTotalTransfer) s->cbElementaryTransfer = s->cbTotalTransfer; Log2(("%s: %s tx_size=%d elem_tx_size=%d index=%d end=%d\n", __FUNCTION__, s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE ? "T2I" : "I2T", s->cbTotalTransfer, s->cbElementaryTransfer, s->iIOBufferCur, s->iIOBufferEnd)); ataPIOTransferStart(s, s->iIOBufferCur, s->cbElementaryTransfer); s->cbTotalTransfer -= s->cbElementaryTransfer; s->iIOBufferCur += s->cbElementaryTransfer; if (s->uTxDir == PDMBLOCKTXDIR_FROM_DEVICE && s->cbElementaryTransfer > s->cbTotalTransfer) s->cbElementaryTransfer = s->cbTotalTransfer; } else ataPIOTransferStop(s); } /** * 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. */ static void ataSuspendRedo(PATACONTROLLER pCtl) { PPDMDEVINS pDevIns = CONTROLLER_2_DEVINS(pCtl); PVMREQ pReq; int rc; pCtl->fRedoIdle = true; rc = VMR3ReqCall(PDMDevHlpGetVM(pDevIns), &pReq, RT_INDEFINITE_WAIT, (PFNRT)pDevIns->pDevHlp->pfnVMSuspend, 1, pDevIns); AssertReleaseRC(rc); VMR3ReqFree(pReq); } /** 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. */ static DECLCALLBACK(int) ataAsyncIOLoop(RTTHREAD ThreadSelf, void *pvUser) { const ATARequest *pReq; uint64_t u64TS = 0; /* shut up gcc */ uint64_t uWait; int rc = VINF_SUCCESS; PATACONTROLLER pCtl = (PATACONTROLLER)pvUser; ATADevState *s; pReq = NULL; pCtl->fChainedTransfer = false; while (!pCtl->fShutdown) { /* Keep this thread from doing anything as long as EMT is suspended. */ while (pCtl->fRedoIdle) { rc = RTSemEventWait(pCtl->SuspendIOSem, RT_INDEFINITE_WAIT); if (VBOX_FAILURE(rc) || pCtl->fShutdown) break; pCtl->fRedoIdle = false; } /* Wait for work. */ if (pReq == NULL) { rc = RTSemEventWait(pCtl->AsyncIOSem, RT_INDEFINITE_WAIT); if (VBOX_FAILURE(rc) || pCtl->fShutdown) break; pReq = ataAsyncIOGetCurrentRequest(pCtl); } if (pReq == NULL) continue; ATAAIO ReqType = pReq->ReqType; Log2(("%s: Ctl#%d: state=%d, req=%d\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl), pCtl->uAsyncIOState, ReqType)); if (pCtl->uAsyncIOState != ReqType) { /* The new state is not the state that was expected by the normal * state changes. This is either a RESET/ABORT or there's something * really strange going on. */ if ( (pCtl->uAsyncIOState == ATA_AIO_PIO || pCtl->uAsyncIOState == ATA_AIO_DMA) && (ReqType == ATA_AIO_PIO || ReqType == ATA_AIO_DMA)) { /* Incorrect sequence of PIO/DMA states. Dump request queue. */ ataAsyncIODumpRequests(pCtl); } AssertReleaseMsg(ReqType == ATA_AIO_RESET_ASSERTED || ReqType == ATA_AIO_RESET_CLEARED || ReqType == ATA_AIO_ABORT || pCtl->uAsyncIOState == ReqType, ("I/O state inconsistent: state=%d request=%d\n", pCtl->uAsyncIOState, ReqType)); } /* Do our work. */ { STAM_PROFILE_START(&pCtl->StatLockWait, a); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); STAM_PROFILE_STOP(&pCtl->StatLockWait, a); } if (pCtl->uAsyncIOState == ATA_AIO_NEW && !pCtl->fChainedTransfer) { u64TS = RTTimeNanoTS(); #if defined(DEBUG) || defined(VBOX_WITH_STATISTICS) STAM_PROFILE_ADV_START(&pCtl->StatAsyncTime, a); #endif /* DEBUG || VBOX_WITH_STATISTICS */ } switch (ReqType) { case ATA_AIO_NEW: pCtl->iAIOIf = pReq->u.t.iIf; s = &pCtl->aIfs[pCtl->iAIOIf]; s->cbTotalTransfer = pReq->u.t.cbTotalTransfer; s->uTxDir = pReq->u.t.uTxDir; s->iBeginTransfer = pReq->u.t.iBeginTransfer; s->iSourceSink = pReq->u.t.iSourceSink; s->iIOBufferEnd = 0; pCtl->fChainedTransfer = false; if (s->iBeginTransfer != ATAFN_BT_NULL) { Log2(("%s: Ctl#%d: calling begin transfer function\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); 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; Log2(("%s: Ctl#%d: calling source/sink function\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); fRedo = g_apfnSourceSinkFuncs[s->iSourceSink](s); pCtl->fRedo = 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. */ LogRel(("%s: Ctl#%d: redo entire operation\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); ataAsyncIOPutRequest(pCtl, pReq); ataSuspendRedo(pCtl); 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. */ if (pCtl->fReset) break; if (s->fDMA) { if (s->cbTotalTransfer) { ataSetStatus(s, ATA_STAT_DRQ); pCtl->uAsyncIOState = ATA_AIO_DMA; /* If BMDMA is already started, do the transfer now. */ if (pCtl->BmDma.u8Cmd & BM_CMD_START) { Log2(("%s: Ctl#%d: message to async I/O thread, continuing DMA transfer immediately\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); ataAsyncIOPutRequest(pCtl, &ataDMARequest); } } else { Assert(s->uTxDir == PDMBLOCKTXDIR_NONE); /* Any transfer which has an initial transfer size of 0 must be marked as such. */ /* Finish DMA transfer. */ ataDMATransferStop(s); ataSetIRQ(s); pCtl->uAsyncIOState = ATA_AIO_NEW; } } else { if (s->cbTotalTransfer) { ataPIOTransfer(pCtl); Assert(!pCtl->fRedo); if (s->fATAPITransfer || s->uTxDir != PDMBLOCKTXDIR_TO_DEVICE) ataSetIRQ(s); pCtl->uAsyncIOState = ATA_AIO_PIO; } else { Assert(s->uTxDir == PDMBLOCKTXDIR_NONE); /* Any transfer which has an initial transfer size of 0 must be marked as such. */ /* Finish PIO transfer. */ ataPIOTransfer(pCtl); Assert(!pCtl->fRedo); if (!s->fATAPITransfer) ataSetIRQ(s); pCtl->uAsyncIOState = ATA_AIO_NEW; } } break; case ATA_AIO_DMA: { BMDMAState *bm = &pCtl->BmDma; 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) AssertRelease(bm->u8Cmd & BM_CMD_WRITE); else AssertRelease(!(bm->u8Cmd & BM_CMD_WRITE)); if (RT_LIKELY(!pCtl->fRedo)) { /* The specs say that the descriptor table must not cross a * 4K boundary. */ pCtl->pFirstDMADesc = bm->pvAddr; pCtl->pLastDMADesc = RT_ALIGN_32(bm->pvAddr + 1, _4K) - sizeof(BMDMADesc); } ataDMATransfer(pCtl); if (RT_UNLIKELY(pCtl->fRedo)) { LogRel(("PIIX3 ATA: Ctl#%d: redo DMA operation\n", ATACONTROLLER_IDX(pCtl))); ataAsyncIOPutRequest(pCtl, &ataDMARequest); ataSuspendRedo(pCtl); break; } /* The infamous delay IRQ hack. */ if ( iOriginalSourceSink == ATAFN_SS_WRITE_SECTORS && 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. */ Log(("%s: delay IRQ hack\n", __FUNCTION__)); PDMCritSectLeave(&pCtl->lock); RTThreadSleep(pCtl->DelayIRQMillies); PDMCritSectEnter(&pCtl->lock, VINF_SUCCESS); } ataUnsetStatus(s, ATA_STAT_DRQ); Assert(!pCtl->fChainedTransfer); Assert(s->iSourceSink == ATAFN_SS_NULL); if (s->fATAPITransfer) { s->uATARegNSector = (s->uATARegNSector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; Log2(("%s: Ctl#%d: interrupt reason %#04x\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl), s->uATARegNSector)); s->fATAPITransfer = false; } ataSetIRQ(s); pCtl->uAsyncIOState = ATA_AIO_NEW; break; } case ATA_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; Log2(("%s: Ctl#%d: calling source/sink function\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); fRedo = g_apfnSourceSinkFuncs[s->iSourceSink](s); pCtl->fRedo = fRedo; if (RT_UNLIKELY(fRedo)) { LogRel(("PIIX3 ATA: Ctl#%d: redo PIO operation\n", ATACONTROLLER_IDX(pCtl))); ataAsyncIOPutRequest(pCtl, &ataPIORequest); ataSuspendRedo(pCtl); break; } s->iIOBufferCur = 0; s->iIOBufferEnd = s->cbElementaryTransfer; } else { /* Continue a previously started transfer. */ ataUnsetStatus(s, ATA_STAT_BUSY); ataSetStatus(s, ATA_STAT_READY); } /* It is possible that the drives on this controller get RESET * during the above call to the source/sink function. If that's * 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. */ if (pCtl->fReset) break; if (s->cbTotalTransfer) { ataPIOTransfer(pCtl); ataSetIRQ(s); pCtl->uAsyncIOState = ATA_AIO_PIO; } else { /* Finish PIO transfer. */ ataPIOTransfer(pCtl); pCtl->uAsyncIOState = ATA_AIO_NEW; if (!pCtl->fChainedTransfer) { if (!s->fATAPITransfer && s->uTxDir != PDMBLOCKTXDIR_FROM_DEVICE) ataSetIRQ(s); } } break; case ATA_AIO_RESET_ASSERTED: pCtl->uAsyncIOState = ATA_AIO_RESET_CLEARED; ataPIOTransferStop(&pCtl->aIfs[0]); ataPIOTransferStop(&pCtl->aIfs[1]); /* 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; case ATA_AIO_RESET_CLEARED: pCtl->uAsyncIOState = ATA_AIO_NEW; pCtl->fReset = false; for (uint32_t i = 0; i < RT_ELEMENTS(pCtl->aIfs); i++) { if (pCtl->aIfs[i].fATAPI) ataSetStatusValue(&pCtl->aIfs[i], 0); /* NOTE: READY is _not_ set */ else ataSetStatusValue(&pCtl->aIfs[i], ATA_STAT_READY | ATA_STAT_SEEK); ataSetSignature(&pCtl->aIfs[i]); } break; case ATA_AIO_ABORT: /* Abort the current command only if it operates on the same interface. */ if (pCtl->iAIOIf == pReq->u.a.iIf) { s = &pCtl->aIfs[pCtl->iAIOIf]; pCtl->uAsyncIOState = ATA_AIO_NEW; /* 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); ataExecuteDeviceDiagnosticSS(s); } else { ataPIOTransferStop(s); ataUnsetStatus(s, ATA_STAT_BUSY | ATA_STAT_DRQ | ATA_STAT_SEEK | ATA_STAT_ERR); ataSetStatus(s, ATA_STAT_READY); ataSetIRQ(s); } } break; default: AssertMsgFailed(("Undefined async I/O state %d\n", pCtl->uAsyncIOState)); } ataAsyncIORemoveCurrentRequest(pCtl, ReqType); pReq = ataAsyncIOGetCurrentRequest(pCtl); if (pCtl->uAsyncIOState == ATA_AIO_NEW && !pCtl->fChainedTransfer) { #if defined(DEBUG) || defined(VBOX_WITH_STATISTICS) STAM_PROFILE_ADV_STOP(&pCtl->StatAsyncTime, a); #endif /* DEBUG || VBOX_WITH_STATISTICS */ u64TS = RTTimeNanoTS() - u64TS; uWait = u64TS / 1000; Log(("%s: Ctl#%d: LUN#%d finished I/O transaction in %d microseconds\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl), pCtl->aIfs[pCtl->iAIOIf].iLUN, (uint32_t)(uWait))); /* * Release logging of command execution times depends on the * command type. ATAPI commands often take longer (due to CD/DVD * spin up time etc.) so the threshold is different. */ if (pCtl->aIfs[pCtl->iAIOIf].uATARegCommand != ATA_PACKET) { if (uWait > 10 * 1000 * 1000) { /* * Command took longer than 10 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(("PIIX3 ATA: execution time for ATA command %#04x was %d seconds\n", pCtl->aIfs[pCtl->iAIOIf].uATARegCommand, uWait / (1000 * 1000))); } } else { if (uWait > 20 * 1000 * 1000) { /* * 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(("PIIX3 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) if (uWait < pCtl->StatAsyncMinWait || !pCtl->StatAsyncMinWait) pCtl->StatAsyncMinWait = uWait; if (uWait > pCtl->StatAsyncMaxWait) pCtl->StatAsyncMaxWait = uWait; STAM_COUNTER_ADD(&pCtl->StatAsyncTimeUS, uWait); STAM_COUNTER_INC(&pCtl->StatAsyncOps); #endif /* DEBUG || VBOX_WITH_STATISTICS */ } PDMCritSectLeave(&pCtl->lock); } /* Cleanup the state. */ if (pCtl->AsyncIOSem) { RTSemEventDestroy(pCtl->AsyncIOSem); pCtl->AsyncIOSem = NIL_RTSEMEVENT; } if (pCtl->SuspendIOSem) { RTSemEventDestroy(pCtl->SuspendIOSem); pCtl->SuspendIOSem = NIL_RTSEMEVENT; } /* Do not destroy request mutex yet, still needed for proper shutdown. */ pCtl->fShutdown = false; /* This must be last, as it also signals thread exit to EMT. */ pCtl->AsyncIOThread = NIL_RTTHREAD; Log2(("%s: Ctl#%d: return %Vrc\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl), rc)); return rc; } #endif /* IN_RING3 */ static uint32_t ataBMDMACmdReadB(PATACONTROLLER pCtl, uint32_t addr) { uint32_t val = pCtl->BmDma.u8Cmd; Log2(("%s: addr=%#06x val=%#04x\n", __FUNCTION__, addr, val)); return val; } static void ataBMDMACmdWriteB(PATACONTROLLER pCtl, uint32_t addr, uint32_t val) { Log2(("%s: addr=%#06x val=%#04x\n", __FUNCTION__, addr, val)); if (!(val & BM_CMD_START)) { pCtl->BmDma.u8Status &= ~BM_STATUS_DMAING; pCtl->BmDma.u8Cmd = val & (BM_CMD_START | BM_CMD_WRITE); } else { #ifdef IN_RING3 /* Check whether the guest OS wants to change DMA direction in * mid-flight. Not allowed, according to the PIIX3 specs. */ Assert(!(pCtl->BmDma.u8Status & BM_STATUS_DMAING) || !((val ^ pCtl->BmDma.u8Cmd) & 0x04)); pCtl->BmDma.u8Status |= BM_STATUS_DMAING; pCtl->BmDma.u8Cmd = val & (BM_CMD_START | BM_CMD_WRITE); /* Do not continue DMA transfers while the RESET line is asserted. */ if (pCtl->fReset) { Log2(("%s: Ctl#%d: suppressed continuing DMA transfer as RESET is active\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); return; } /* Do not start DMA transfers if there's a PIO transfer going on. */ if (!pCtl->aIfs[pCtl->iSelectedIf].fDMA) return; if (pCtl->aIfs[pCtl->iAIOIf].uATARegStatus & ATA_STAT_DRQ) { Log2(("%s: Ctl#%d: message to async I/O thread, continuing DMA transfer\n", __FUNCTION__, ATACONTROLLER_IDX(pCtl))); ataAsyncIOPutRequest(pCtl, &ataDMARequest); } #else /* !IN_RING3 */ AssertMsgFailed(("DMA START handling is too complicated for GC\n")); #endif /* IN_RING3 */ } } static uint32_t ataBMDMAStatusReadB(PATACONTROLLER pCtl, uint32_t addr) { uint32_t val = pCtl->BmDma.u8Status; Log2(("%s: addr=%#06x val=%#04x\n", __FUNCTION__, addr, val)); return val; } static void ataBMDMAStatusWriteB(PATACONTROLLER pCtl, uint32_t addr, uint32_t val) { Log2(("%s: addr=%#06x val=%#04x\n", __FUNCTION__, addr, val)); pCtl->BmDma.u8Status = (val & (BM_STATUS_D0DMA | BM_STATUS_D1DMA)) | (pCtl->BmDma.u8Status & BM_STATUS_DMAING) | (pCtl->BmDma.u8Status & ~val & (BM_STATUS_ERROR | BM_STATUS_INT)); } static uint32_t ataBMDMAAddrReadL(PATACONTROLLER pCtl, uint32_t addr) { uint32_t val = (uint32_t)pCtl->BmDma.pvAddr; Log2(("%s: addr=%#06x val=%#010x\n", __FUNCTION__, addr, val)); return val; } static void ataBMDMAAddrWriteL(PATACONTROLLER pCtl, uint32_t addr, uint32_t val) { Log2(("%s: addr=%#06x val=%#010x\n", __FUNCTION__, addr, val)); pCtl->BmDma.pvAddr = val & ~3; } static void ataBMDMAAddrWriteLowWord(PATACONTROLLER pCtl, uint32_t addr, uint32_t val) { Log2(("%s: addr=%#06x val=%#010x\n", __FUNCTION__, addr, val)); pCtl->BmDma.pvAddr = (pCtl->BmDma.pvAddr & 0xFFFF0000) | RT_LOWORD(val & ~3); } static void ataBMDMAAddrWriteHighWord(PATACONTROLLER pCtl, uint32_t addr, uint32_t val) { Log2(("%s: addr=%#06x val=%#010x\n", __FUNCTION__, addr, val)); pCtl->BmDma.pvAddr = (RT_LOWORD(val) << 16) | RT_LOWORD(pCtl->BmDma.pvAddr); } #define VAL(port, size) ( ((port) & 7) | ((size) << 3) ) /** * Port I/O Handler for bus master DMA IN operations. * @see FNIOMIOPORTIN for details. */ PDMBOTHCBDECL(int) ataBMDMAIOPortRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *pu32, unsigned cb) { uint32_t i = (uint32_t)(uintptr_t)pvUser; PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); PATACONTROLLER pCtl = &pData->aCts[i]; int rc; rc = PDMCritSectEnter(&pCtl->lock, VINF_IOM_HC_IOPORT_READ); if (rc != VINF_SUCCESS) return rc; switch (VAL(Port, cb)) { case VAL(0, 1): *pu32 = ataBMDMACmdReadB(pCtl, Port); break; case VAL(0, 2): *pu32 = ataBMDMACmdReadB(pCtl, Port); break; case VAL(2, 1): *pu32 = ataBMDMAStatusReadB(pCtl, Port); break; case VAL(2, 2): *pu32 = ataBMDMAStatusReadB(pCtl, Port); break; case VAL(4, 4): *pu32 = ataBMDMAAddrReadL(pCtl, Port); break; default: AssertMsgFailed(("%s: Unsupported read from port %x size=%d\n", __FUNCTION__, Port, cb)); PDMCritSectLeave(&pCtl->lock); return VERR_IOM_IOPORT_UNUSED; } PDMCritSectLeave(&pCtl->lock); return rc; } /** * Port I/O Handler for bus master DMA OUT operations. * @see FNIOMIOPORTOUT for details. */ PDMBOTHCBDECL(int) ataBMDMAIOPortWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb) { uint32_t i = (uint32_t)(uintptr_t)pvUser; PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); PATACONTROLLER pCtl = &pData->aCts[i]; int rc; rc = PDMCritSectEnter(&pCtl->lock, VINF_IOM_HC_IOPORT_WRITE); if (rc != VINF_SUCCESS) return rc; switch (VAL(Port, cb)) { case VAL(0, 1): #ifndef IN_RING3 if (u32 & BM_CMD_START) { rc = VINF_IOM_HC_IOPORT_WRITE; break; } #endif /* !IN_RING3 */ ataBMDMACmdWriteB(pCtl, Port, u32); break; case VAL(2, 1): ataBMDMAStatusWriteB(pCtl, Port, u32); break; case VAL(4, 4): ataBMDMAAddrWriteL(pCtl, Port, u32); break; case VAL(4, 2): ataBMDMAAddrWriteLowWord(pCtl, Port, u32); break; case VAL(6, 2): ataBMDMAAddrWriteHighWord(pCtl, Port, u32); break; default: AssertMsgFailed(("%s: Unsupported write to port %x size=%d val=%x\n", __FUNCTION__, Port, cb, u32)); break; } PDMCritSectLeave(&pCtl->lock); return rc; } #undef VAL #ifdef IN_RING3 /** * 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) { PCIATAState *pData = PCIDEV_2_PCIATASTATE(pPciDev); int rc = VINF_SUCCESS; Assert(enmType == PCI_ADDRESS_SPACE_IO); Assert(iRegion == 4); AssertMsg(RT_ALIGN(GCPhysAddress, 8) == GCPhysAddress, ("Expected 8 byte alignment. GCPhysAddress=%#x\n", GCPhysAddress)); /* Register the port range. */ for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { int rc2 = PDMDevHlpIOPortRegister(pPciDev->pDevIns, (RTIOPORT)GCPhysAddress + i * 8, 8, (RTHCPTR)i, ataBMDMAIOPortWrite, ataBMDMAIOPortRead, NULL, NULL, "ATA Bus Master DMA"); AssertRC(rc2); if (rc2 < rc) rc = rc2; if (pData->fGCEnabled) { rc2 = PDMDevHlpIOPortRegisterGC(pPciDev->pDevIns, (RTIOPORT)GCPhysAddress + i * 8, 8, (RTGCPTR)i, "ataBMDMAIOPortWrite", "ataBMDMAIOPortRead", NULL, NULL, "ATA Bus Master DMA"); AssertRC(rc2); if (rc2 < rc) rc = rc2; } if (pData->fR0Enabled) { rc2 = PDMDevHlpIOPortRegisterR0(pPciDev->pDevIns, (RTIOPORT)GCPhysAddress + i * 8, 8, (RTHCPTR)i, "ataBMDMAIOPortWrite", "ataBMDMAIOPortRead", NULL, NULL, "ATA Bus Master DMA"); AssertRC(rc2); if (rc2 < rc) rc = rc2; } } return rc; } /** * Reset notification. * * @returns VBox status. * @param pDevIns The device instance data. */ static DECLCALLBACK(void) ataReset(PPDMDEVINS pDevIns) { PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { pData->aCts[i].iSelectedIf = 0; pData->aCts[i].iAIOIf = 0; pData->aCts[i].BmDma.u8Cmd = 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. */ pData->aCts[i].BmDma.u8Status = (pData->aCts[i].aIfs[0].pDrvBase != NULL ? BM_STATUS_D0DMA : 0) | (pData->aCts[i].aIfs[1].pDrvBase != NULL ? BM_STATUS_D1DMA : 0); pData->aCts[i].BmDma.pvAddr = 0; pData->aCts[i].fReset = true; pData->aCts[i].fRedo = false; pData->aCts[i].fRedoIdle = false; ataAsyncIOClearRequests(&pData->aCts[i]); Log2(("%s: Ctl#%d: message to async I/O thread, reset controller\n", __FUNCTION__, i)); ataAsyncIOPutRequest(&pData->aCts[i], &ataResetARequest); ataAsyncIOPutRequest(&pData->aCts[i], &ataResetCRequest); if (!ataWaitForAsyncIOIsIdle(&pData->aCts[i], 30000)) AssertReleaseMsgFailed(("Async I/O thread busy after reset\n")); for (uint32_t j = 0; j < RT_ELEMENTS(pData->aCts[i].aIfs); j++) ataResetDevice(&pData->aCts[i].aIfs[j]); } } /* -=-=-=-=-=- PCIATAState::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 ATADevState::IBase. * @param enmInterface The requested interface identification. */ static DECLCALLBACK(void *) ataStatus_QueryInterface(PPDMIBASE pInterface, PDMINTERFACE enmInterface) { PCIATAState *pData = PDMIBASE_2_PCIATASTATE(pInterface); switch (enmInterface) { case PDMINTERFACE_BASE: return &pData->IBase; case PDMINTERFACE_LED_PORTS: return &pData->ILeds; default: return NULL; } } /* -=-=-=-=-=- PCIATAState::ILeds -=-=-=-=-=- */ /** * Gets the pointer to the status LED of a unit. * * @returns VBox status code. * @param pInterface Pointer to the interface structure containing the called function pointer. * @param iLUN The unit which status LED we desire. * @param ppLed Where to store the LED pointer. */ static DECLCALLBACK(int) ataStatus_QueryStatusLed(PPDMILEDPORTS pInterface, unsigned iLUN, PPDMLED *ppLed) { PCIATAState *pData = PDMILEDPORTS_2_PCIATASTATE(pInterface); if (iLUN >= 0 && iLUN <= 4) { switch (iLUN) { case 0: *ppLed = &pData->aCts[0].aIfs[0].Led; break; case 1: *ppLed = &pData->aCts[0].aIfs[1].Led; break; case 2: *ppLed = &pData->aCts[1].aIfs[0].Led; break; case 3: *ppLed = &pData->aCts[1].aIfs[1].Led; break; } Assert((*ppLed)->u32Magic == PDMLED_MAGIC); return VINF_SUCCESS; } return VERR_PDM_LUN_NOT_FOUND; } /* -=-=-=-=-=- ATADevState::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 ATADevState::IBase. * @param enmInterface The requested interface identification. */ static DECLCALLBACK(void *) ataQueryInterface(PPDMIBASE pInterface, PDMINTERFACE enmInterface) { ATADevState *pIf = PDMIBASE_2_ATASTATE(pInterface); switch (enmInterface) { case PDMINTERFACE_BASE: return &pIf->IBase; case PDMINTERFACE_BLOCK_PORT: return &pIf->IPort; case PDMINTERFACE_MOUNT_NOTIFY: return &pIf->IMountNotify; default: return NULL; } } #endif /* IN_RING3 */ /* -=-=-=-=-=- Wrappers -=-=-=-=-=- */ /** * Port I/O Handler for primary port range OUT operations. * @see FNIOMIOPORTOUT for details. */ PDMBOTHCBDECL(int) ataIOPortWrite1(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb) { uint32_t i = (uint32_t)(uintptr_t)pvUser; PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); PATACONTROLLER pCtl = &pData->aCts[i]; int rc = VINF_SUCCESS; Assert(i < 2); rc = PDMCritSectEnter(&pCtl->lock, VINF_IOM_HC_IOPORT_WRITE); if (rc != VINF_SUCCESS) return rc; if (cb == 1) rc = ataIOPortWriteU8(pCtl, Port, u32); else if (Port == pCtl->IOPortBase1) { Assert(cb == 2 || cb == 4); rc = ataDataWrite(pCtl, Port, cb, (const uint8_t *)&u32); } else AssertMsgFailed(("ataIOPortWrite1: unsupported write to port %x val=%x size=%d\n", Port, u32, cb)); PDMCritSectLeave(&pCtl->lock); return rc; } /** * Port I/O Handler for primary port range IN operations. * @see FNIOMIOPORTIN for details. */ PDMBOTHCBDECL(int) ataIOPortRead1(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *pu32, unsigned cb) { uint32_t i = (uint32_t)(uintptr_t)pvUser; PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); PATACONTROLLER pCtl = &pData->aCts[i]; int rc = VINF_SUCCESS; Assert(i < 2); rc = PDMCritSectEnter(&pCtl->lock, VINF_IOM_HC_IOPORT_READ); if (rc != VINF_SUCCESS) return rc; if (cb == 1) { ataIOPortReadU8(pCtl, Port, pu32); rc = VINF_SUCCESS; } else if (Port == pCtl->IOPortBase1) { Assert(cb == 2 || cb == 4); rc = ataDataRead(pCtl, Port, cb, (uint8_t *)pu32); if (cb == 2) *pu32 &= 0xffff; } else { AssertMsgFailed(("ataIOPortRead1: unsupported read from port %x size=%d\n", Port, cb)); rc = VERR_IOM_IOPORT_UNUSED; } PDMCritSectLeave(&pCtl->lock); return rc; } #ifndef IN_RING0 /** * Port I/O Handler for primary port range IN string operations. * @see FNIOMIOPORTINSTRING for details. */ PDMBOTHCBDECL(int) ataIOPortReadStr1(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, RTGCPTR *pGCPtrDst, unsigned *pcTransfer, unsigned cb) { uint32_t i = (uint32_t)(uintptr_t)pvUser; PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); PATACONTROLLER pCtl = &pData->aCts[i]; int rc = VINF_SUCCESS; Assert(i < 2); rc = PDMCritSectEnter(&pCtl->lock, VINF_IOM_HC_IOPORT_READ); if (rc != VINF_SUCCESS) return rc; if (Port == pCtl->IOPortBase1) { uint32_t cTransAvailable, cTransfer = *pcTransfer, cbTransfer; RTGCPTR GCDst = *pGCPtrDst; ATADevState *s = &pCtl->aIfs[pCtl->iSelectedIf]; Assert(cb == 2 || cb == 4); cTransAvailable = (s->iIOBufferPIODataEnd - s->iIOBufferPIODataStart) / cb; #ifndef IN_RING3 /* The last transfer unit cannot be handled in GC, as it involves thread communication. */ cTransAvailable--; #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) cTransAvailable = cTransfer; cbTransfer = cTransAvailable * cb; #ifdef IN_GC for (uint32_t i = 0; i < cbTransfer; i += cb) MMGCRamWriteNoTrapHandler((char *)GCDst + i, s->CTXSUFF(pbIOBuffer) + s->iIOBufferPIODataStart + i, cb); #else /* !IN_GC */ rc = PGMPhysWriteGCPtrDirty(PDMDevHlpGetVM(pDevIns), GCDst, s->CTXSUFF(pbIOBuffer) + s->iIOBufferPIODataStart, cbTransfer); Assert(rc == VINF_SUCCESS); #endif /* IN_GC */ if (cbTransfer) Log3(("%s: addr=%#x val=%.*Vhxs\n", __FUNCTION__, Port, cbTransfer, s->CTXSUFF(pbIOBuffer) + s->iIOBufferPIODataStart)); s->iIOBufferPIODataStart += cbTransfer; *pGCPtrDst = (RTGCPTR)((RTGCUINTPTR)GCDst + cbTransfer); *pcTransfer = cTransfer - cTransAvailable; #ifdef IN_RING3 if (s->iIOBufferPIODataStart >= s->iIOBufferPIODataEnd) ataPIOTransferFinish(pCtl, s); #endif /* IN_RING3 */ } PDMCritSectLeave(&pCtl->lock); return rc; } /** * Port I/O Handler for primary port range OUT string operations. * @see FNIOMIOPORTOUTSTRING for details. */ PDMBOTHCBDECL(int) ataIOPortWriteStr1(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, RTGCPTR *pGCPtrSrc, unsigned *pcTransfer, unsigned cb) { uint32_t i = (uint32_t)(uintptr_t)pvUser; PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); PATACONTROLLER pCtl = &pData->aCts[i]; int rc; Assert(i < 2); rc = PDMCritSectEnter(&pCtl->lock, VINF_IOM_HC_IOPORT_WRITE); if (rc != VINF_SUCCESS) return rc; if (Port == pCtl->IOPortBase1) { uint32_t cTransAvailable, cTransfer = *pcTransfer, cbTransfer; RTGCPTR GCSrc = *pGCPtrSrc; ATADevState *s = &pCtl->aIfs[pCtl->iSelectedIf]; Assert(cb == 2 || cb == 4); cTransAvailable = (s->iIOBufferPIODataEnd - s->iIOBufferPIODataStart) / cb; #ifndef IN_RING3 /* The last transfer unit cannot be handled in GC, as it involves thread communication. */ cTransAvailable--; #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) cTransAvailable = cTransfer; cbTransfer = cTransAvailable * cb; #ifdef IN_GC for (uint32_t i = 0; i < cbTransfer; i += cb) MMGCRamReadNoTrapHandler(s->CTXSUFF(pbIOBuffer) + s->iIOBufferPIODataStart + i, (char *)GCSrc + i, cb); #else /* !IN_GC */ rc = PGMPhysReadGCPtr(PDMDevHlpGetVM(pDevIns), s->CTXSUFF(pbIOBuffer) + s->iIOBufferPIODataStart, GCSrc, cbTransfer); Assert(rc == VINF_SUCCESS); #endif /* IN_GC */ if (cbTransfer) Log3(("%s: addr=%#x val=%.*Vhxs\n", __FUNCTION__, Port, cbTransfer, s->CTXSUFF(pbIOBuffer) + s->iIOBufferPIODataStart)); s->iIOBufferPIODataStart += cbTransfer; *pGCPtrSrc = (RTGCPTR)((RTGCUINTPTR)GCSrc + cbTransfer); *pcTransfer = cTransfer - cTransAvailable; #ifdef IN_RING3 if (s->iIOBufferPIODataStart >= s->iIOBufferPIODataEnd) ataPIOTransferFinish(pCtl, s); #endif /* IN_RING3 */ } PDMCritSectLeave(&pCtl->lock); return rc; } #endif /* !IN_RING0 */ /** * Port I/O Handler for secondary port range OUT operations. * @see FNIOMIOPORTOUT for details. */ PDMBOTHCBDECL(int) ataIOPortWrite2(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb) { uint32_t i = (uint32_t)(uintptr_t)pvUser; PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); PATACONTROLLER pCtl = &pData->aCts[i]; int rc; Assert(i < 2); if (cb != 1) return VINF_SUCCESS; rc = PDMCritSectEnter(&pCtl->lock, VINF_IOM_HC_IOPORT_WRITE); if (rc != VINF_SUCCESS) return rc; rc = ataControlWrite(pCtl, Port, u32); PDMCritSectLeave(&pCtl->lock); return rc; } /** * Port I/O Handler for secondary port range IN operations. * @see FNIOMIOPORTIN for details. */ PDMBOTHCBDECL(int) ataIOPortRead2(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *pu32, unsigned cb) { uint32_t i = (uint32_t)(uintptr_t)pvUser; PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); PATACONTROLLER pCtl = &pData->aCts[i]; int rc; Assert(i < 2); if (cb != 1) return VERR_IOM_IOPORT_UNUSED; rc = PDMCritSectEnter(&pCtl->lock, VINF_IOM_HC_IOPORT_READ); if (rc != VINF_SUCCESS) return rc; *pu32 = ataStatusRead(pCtl, Port); PDMCritSectLeave(&pCtl->lock); 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 pData Pointer to the instance data. * @param cMillies How long to wait (total). */ static bool ataWaitForAllAsyncIOIsIdle(PPDMDEVINS pDevIns, unsigned cMillies) { PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); bool fVMLocked; uint64_t u64Start; bool fAllIdle = false; /* The only way to deal cleanly with the VM lock is to check whether * it is owned now (it always is owned by EMT, which is the current * thread). Since this function is called several times during VM * shutdown, and the VM lock is only held for the first call (which * can be either from ataPowerOff or ataSuspend), there is no other * reasonable solution. */ fVMLocked = VMMR3LockIsOwner(PDMDevHlpGetVM(pDevIns)); if (fVMLocked) pDevIns->pDevHlp->pfnUnlockVM(pDevIns); /* * Wait for any pending async operation to finish */ u64Start = RTTimeMilliTS(); for (;;) { /* Check all async I/O threads. */ fAllIdle = true; for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { fAllIdle &= ataAsyncIOIsIdle(&pData->aCts[i], false); if (!fAllIdle) break; } if ( fAllIdle || RTTimeMilliTS() - u64Start >= cMillies) break; /* Sleep for a bit. */ RTThreadSleep(100); } if (fVMLocked) pDevIns->pDevHlp->pfnLockVM(pDevIns); return fAllIdle; } DECLINLINE(void) ataRelocBuffer(PPDMDEVINS pDevIns, ATADevState *s) { if (s->pbIOBufferHC) s->pbIOBufferGC = MMHyperHC2GC(PDMDevHlpGetVM(pDevIns), s->pbIOBufferHC); } /** * @copydoc FNPDMDEVRELOCATE */ static DECLCALLBACK(void) ataRelocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta) { PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { pData->aCts[i].pDevInsGC += offDelta; pData->aCts[i].aIfs[0].pDevInsGC += offDelta; pData->aCts[i].aIfs[0].pControllerGC += offDelta; ataRelocBuffer(pDevIns, &pData->aCts[i].aIfs[0]); pData->aCts[i].aIfs[1].pDevInsGC += offDelta; pData->aCts[i].aIfs[1].pControllerGC += offDelta; ataRelocBuffer(pDevIns, &pData->aCts[i].aIfs[1]); } } /** * Destroy a driver instance. * * Most VM resources are freed by the VM. This callback is provided so that any non-VM * resources can be freed correctly. * * @param pDrvIns The driver instance data. */ static DECLCALLBACK(int) ataDestruct(PPDMDEVINS pDevIns) { PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); int rc; Log(("%s:\n", __FUNCTION__)); /* * Terminate all async helper threads */ for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { if (pData->aCts[i].AsyncIOThread != NIL_RTTHREAD) { ASMAtomicXchgU32(&pData->aCts[i].fShutdown, true); rc = RTSemEventSignal(pData->aCts[i].AsyncIOSem); AssertRC(rc); } } /* * Wait for them to complete whatever they are doing and then * for them to terminate. */ if (ataWaitForAllAsyncIOIsIdle(pDevIns, 20000)) { uint64_t u64Start = RTTimeMilliTS(); bool fAllDone; for (;;) { /* check */ fAllDone = true; for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts) && fAllDone; i++) fAllDone &= (pData->aCts[i].AsyncIOThread == NIL_RTTHREAD); if ( fAllDone || RTTimeMilliTS() - u64Start >= 500) break; /* Sleep for a bit. */ RTThreadSleep(100); } AssertMsg(fAllDone, ("Some of the async I/O threads are still running!\n")); } else AssertMsgFailed(("Async I/O is still busy!\n")); /* * Now the request mutexes are no longer needed. Free resources. */ for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { if (pData->aCts[i].AsyncIORequestMutex) { RTSemMutexDestroy(pData->aCts[i].AsyncIORequestMutex); pData->aCts[i].AsyncIORequestMutex = NIL_RTSEMEVENT; } } return VINF_SUCCESS; } /** * Detach notification. * * The DVD drive has been unplugged. * * @param pDevIns The device instance. * @param iLUN The logical unit which is being detached. */ static DECLCALLBACK(void) ataDetach(PPDMDEVINS pDevIns, unsigned iLUN) { PCIATAState *pThis = PDMINS2DATA(pDevIns, PCIATAState *); PATACONTROLLER pCtl; ATADevState *pIf; unsigned iController; unsigned iInterface; /* * Locate the controller and stuff. */ iController = iLUN / RT_ELEMENTS(pThis->aCts[0].aIfs); AssertReleaseMsg(iController < RT_ELEMENTS(pThis->aCts), ("iController=%d iLUN=%d\n", iController, iLUN)); pCtl = &pThis->aCts[iController]; iInterface = iLUN % RT_ELEMENTS(pThis->aCts[0].aIfs); pIf = &pCtl->aIfs[iInterface]; /* * Zero some important members. */ pIf->pDrvBase = NULL; pIf->pDrvBlock = NULL; pIf->pDrvBlockBios = NULL; pIf->pDrvMount = NULL; } /** * Configure a LUN. * * @returns VBox status code. * @param pDevIns The device instance. * @param pIf The ATA unit state. */ static int ataConfigLun(PPDMDEVINS pDevIns, ATADevState *pIf) { int rc; PDMBLOCKTYPE enmType; /* * Query Block, Bios and Mount interfaces. */ pIf->pDrvBlock = (PDMIBLOCK *)pIf->pDrvBase->pfnQueryInterface(pIf->pDrvBase, PDMINTERFACE_BLOCK); if (!pIf->pDrvBlock) { AssertMsgFailed(("Configuration error: LUN#%d hasn't a block interface!\n", pIf->iLUN)); 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) { AssertMsgFailed(("Configuration error: LUN#%d hasn't a block BIOS interface!\n", pIf->iLUN)); return VERR_PDM_MISSING_INTERFACE; } pIf->pDrvMount = (PDMIMOUNT *)pIf->pDrvBase->pfnQueryInterface(pIf->pDrvBase, PDMINTERFACE_MOUNT); /* * Validate type. */ enmType = pIf->pDrvBlock->pfnGetType(pIf->pDrvBlock); 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) && !pIf->pDrvMount) { AssertMsgFailed(("Internal error: cdrom without a mountable interface, WTF???!\n")); return VERR_INTERNAL_ERROR; } pIf->fATAPI = enmType == PDMBLOCKTYPE_DVD || enmType == PDMBLOCKTYPE_CDROM; pIf->fATAPIPassthrough = pIf->fATAPI ? (pIf->pDrvBlock->pfnSendCmd != NULL) : false; /* * Allocate I/O buffer. */ PVM pVM = PDMDevHlpGetVM(pDevIns); if (pIf->cbIOBuffer) { /* Buffer is (probably) already allocated. Validate the fields, * because memory corruption can also overwrite pIf->cbIOBuffer. */ if (pIf->fATAPI) AssertRelease(pIf->cbIOBuffer == _128K); else AssertRelease(pIf->cbIOBuffer == ATA_MAX_MULT_SECTORS * 512); Assert(pIf->pbIOBufferHC); Assert(pIf->pbIOBufferGC == MMHyperHC2GC(pVM, pIf->pbIOBufferHC)); } else { if (pIf->fATAPI) pIf->cbIOBuffer = _128K; else pIf->cbIOBuffer = ATA_MAX_MULT_SECTORS * 512; Assert(!pIf->pbIOBufferHC); rc = MMHyperAlloc(pVM, pIf->cbIOBuffer, 1, MM_TAG_PDM_DEVICE_USER, (void **)&pIf->pbIOBufferHC); if (VBOX_FAILURE(rc)) return VERR_NO_MEMORY; pIf->pbIOBufferGC = MMHyperHC2GC(pVM, pIf->pbIOBufferHC); } /* * Init geometry. */ if (pIf->fATAPI) { pIf->cTotalSectors = pIf->pDrvBlock->pfnGetSize(pIf->pDrvBlock) / 2048; rc = pIf->pDrvBlockBios->pfnGetGeometry(pIf->pDrvBlockBios, &pIf->cCHSCylinders, &pIf->cCHSHeads, &pIf->cCHSSectors); pIf->cCHSCylinders = 0; /* dummy */ pIf->cCHSHeads = 0; /* dummy */ pIf->cCHSSectors = 0; /* dummy */ if (rc != VERR_PDM_MEDIA_NOT_MOUNTED) { pIf->pDrvBlockBios->pfnSetTranslation(pIf->pDrvBlockBios, PDMBIOSTRANSLATION_NONE); pIf->pDrvBlockBios->pfnSetGeometry(pIf->pDrvBlockBios, pIf->cCHSCylinders, pIf->cCHSHeads, pIf->cCHSSectors); } LogRel(("PIIX3 ATA: LUN#%d: CD/DVD, total number of sectors %Ld, passthrough %s\n", pIf->iLUN, pIf->cTotalSectors, (pIf->fATAPIPassthrough ? "enabled" : "disabled"))); } else { pIf->cTotalSectors = pIf->pDrvBlock->pfnGetSize(pIf->pDrvBlock) / 512; rc = pIf->pDrvBlockBios->pfnGetGeometry(pIf->pDrvBlockBios, &pIf->cCHSCylinders, &pIf->cCHSHeads, &pIf->cCHSSectors); if (rc == VERR_PDM_MEDIA_NOT_MOUNTED) { pIf->cCHSCylinders = 0; pIf->cCHSHeads = 16; /*??*/ pIf->cCHSSectors = 63; /*??*/ } else if (VBOX_FAILURE(rc)) { PDMBIOSTRANSLATION enmTranslation; rc = pIf->pDrvBlockBios->pfnGetTranslation(pIf->pDrvBlockBios, &enmTranslation); AssertRC(rc); if ( enmTranslation == PDMBIOSTRANSLATION_AUTO && ( pIf->cCHSCylinders == 0 || pIf->cCHSHeads == 0 || pIf->cCHSSectors == 0 ) ) { /* Image contains no geometry information, detect geometry. */ rc = ataGuessDiskLCHS(pIf, &pIf->cCHSCylinders, &pIf->cCHSHeads, &pIf->cCHSSectors); if (VBOX_SUCCESS(rc)) { /* Set the disk geometry information. */ rc = pIf->pDrvBlockBios->pfnSetGeometry(pIf->pDrvBlockBios, pIf->cCHSCylinders, pIf->cCHSHeads, pIf->cCHSSectors); } else { /* Flag geometry as invalid, will be replaced below by the * default geometry. */ pIf->cCHSCylinders = 0; } } /* If there is no geometry, use standard physical disk geometry. * This uses LCHS to LBA translation in the BIOS (which selects * the logical sector count 63 and the logical head count to be * the smallest of 16,32,64,128,255 which makes the logical * cylinder count smaller than 1024 - if that's not possible, it * uses 255 heads, so up to about 8 GByte maximum with the * standard int13 interface, which supports 1024 cylinders). */ if (!pIf->cCHSCylinders) { uint64_t cCHSCylinders = pIf->cTotalSectors / (16 * 63); pIf->cCHSCylinders = (uint32_t)RT_MIN(RT_MAX(cCHSCylinders, 1), 16383); pIf->cCHSHeads = 16; pIf->cCHSSectors = 63; /* Set the disk geometry information. */ rc = pIf->pDrvBlockBios->pfnSetGeometry(pIf->pDrvBlockBios, pIf->cCHSCylinders, pIf->cCHSHeads, pIf->cCHSSectors); } } LogRel(("PIIX3 ATA: LUN#%d: disk, CHS=%d/%d/%d, total number of sectors %Ld\n", pIf->iLUN, pIf->cCHSCylinders, pIf->cCHSHeads, pIf->cCHSSectors, pIf->cTotalSectors)); } return VINF_SUCCESS; } /** * 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. */ static DECLCALLBACK(int) ataAttach(PPDMDEVINS pDevIns, unsigned iLUN) { PCIATAState *pThis = PDMINS2DATA(pDevIns, PCIATAState *); PATACONTROLLER pCtl; ATADevState *pIf; int rc; unsigned iController; unsigned iInterface; /* * Locate the controller and stuff. */ iController = iLUN / RT_ELEMENTS(pThis->aCts[0].aIfs); AssertReleaseMsg(iController < RT_ELEMENTS(pThis->aCts), ("iController=%d iLUN=%d\n", iController, iLUN)); pCtl = &pThis->aCts[iController]; iInterface = iLUN % RT_ELEMENTS(pThis->aCts[0].aIfs); pIf = &pCtl->aIfs[iInterface]; /* the usual paranoia */ AssertRelease(!pIf->pDrvBase); AssertRelease(!pIf->pDrvBlock); Assert(ATADEVSTATE_2_CONTROLLER(pIf) == pCtl); Assert(pIf->iLUN == iLUN); /* * Try attach the block device and get the interfaces, * required as well as optional. */ rc = PDMDevHlpDriverAttach(pDevIns, pIf->iLUN, &pIf->IBase, &pIf->pDrvBase, NULL); if (VBOX_SUCCESS(rc)) rc = ataConfigLun(pDevIns, pIf); else AssertMsgFailed(("Failed to attach LUN#%d. rc=%Vrc\n", pIf->iLUN, rc)); if (VBOX_FAILURE(rc)) { pIf->pDrvBase = NULL; pIf->pDrvBlock = NULL; } return rc; } /** * Suspend notification. * * @returns VBox status. * @param pDrvIns The driver instance data. */ static DECLCALLBACK(void) ataSuspend(PPDMDEVINS pDevIns) { Log(("%s:\n", __FUNCTION__)); if (!ataWaitForAllAsyncIOIsIdle(pDevIns, 20000)) AssertMsgFailed(("Async I/O didn't stop in 20 seconds!\n")); return; } /** * Resume notification. * * @returns VBox status. * @param pDrvIns The driver instance data. */ static DECLCALLBACK(void) ataResume(PPDMDEVINS pDevIns) { PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); int rc; Log(("%s:\n", __FUNCTION__)); for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { if (pData->aCts[i].fRedo && pData->aCts[i].fRedoIdle) { rc = RTSemEventSignal(pData->aCts[i].SuspendIOSem); AssertRC(rc); } } return; } /** * Power Off notification. * * @returns VBox status. * @param pDrvIns The driver instance data. */ static DECLCALLBACK(void) ataPowerOff(PPDMDEVINS pDevIns) { Log(("%s:\n", __FUNCTION__)); if (!ataWaitForAllAsyncIOIsIdle(pDevIns, 20000)) 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. */ static DECLCALLBACK(int) ataSaveLoadPrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSM) { PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); /* sanity - the suspend notification will wait on the async stuff. */ for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { Assert(ataAsyncIOIsIdle(&pData->aCts[i], false)); if (!ataAsyncIOIsIdle(&pData->aCts[i], false)) return VERR_SSM_IDE_ASYNC_TIMEOUT; } return VINF_SUCCESS; } /** * Saves a state of the ATA device. * * @returns VBox status code. * @param pDevIns The device instance. * @param pSSMHandle The handle to save the state to. */ static DECLCALLBACK(int) ataSaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle) { PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { SSMR3PutU8(pSSMHandle, pData->aCts[i].iSelectedIf); SSMR3PutU8(pSSMHandle, pData->aCts[i].iAIOIf); SSMR3PutU8(pSSMHandle, pData->aCts[i].uAsyncIOState); SSMR3PutBool(pSSMHandle, pData->aCts[i].fChainedTransfer); SSMR3PutBool(pSSMHandle, pData->aCts[i].fReset); SSMR3PutBool(pSSMHandle, pData->aCts[i].fRedo); SSMR3PutBool(pSSMHandle, pData->aCts[i].fRedoIdle); SSMR3PutBool(pSSMHandle, pData->aCts[i].fRedoDMALastDesc); SSMR3PutMem(pSSMHandle, &pData->aCts[i].BmDma, sizeof(pData->aCts[i].BmDma)); SSMR3PutGCPhys(pSSMHandle, pData->aCts[i].pFirstDMADesc); SSMR3PutGCPhys(pSSMHandle, pData->aCts[i].pLastDMADesc); SSMR3PutGCPhys(pSSMHandle, pData->aCts[i].pRedoDMABuffer); SSMR3PutU32(pSSMHandle, pData->aCts[i].cbRedoDMABuffer); for (uint32_t j = 0; j < RT_ELEMENTS(pData->aCts[i].aIfs); j++) { SSMR3PutBool(pSSMHandle, pData->aCts[i].aIfs[j].fLBA48); SSMR3PutBool(pSSMHandle, pData->aCts[i].aIfs[j].fATAPI); SSMR3PutBool(pSSMHandle, pData->aCts[i].aIfs[j].fIrqPending); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].cMultSectors); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].cCHSCylinders); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].cCHSHeads); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].cCHSSectors); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].cSectorsPerIRQ); SSMR3PutU64(pSSMHandle, pData->aCts[i].aIfs[j].cTotalSectors); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegFeature); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegFeatureHOB); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegError); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegNSector); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegNSectorHOB); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegSector); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegSectorHOB); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegLCyl); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegLCylHOB); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegHCyl); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegHCylHOB); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegSelect); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegStatus); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegCommand); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATARegDevCtl); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATATransferMode); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uTxDir); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].iBeginTransfer); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].iSourceSink); SSMR3PutBool(pSSMHandle, pData->aCts[i].aIfs[j].fDMA); SSMR3PutBool(pSSMHandle, pData->aCts[i].aIfs[j].fATAPITransfer); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].cbTotalTransfer); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].cbElementaryTransfer); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].iIOBufferCur); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].iIOBufferEnd); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].iIOBufferPIODataStart); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].iIOBufferPIODataEnd); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].iATAPILBA); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].cbATAPISector); SSMR3PutMem(pSSMHandle, &pData->aCts[i].aIfs[j].aATAPICmd, sizeof(pData->aCts[i].aIfs[j].aATAPICmd)); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATAPISenseKey); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].uATAPIASC); SSMR3PutU8(pSSMHandle, pData->aCts[i].aIfs[j].cNotifiedMediaChange); SSMR3PutMem(pSSMHandle, &pData->aCts[i].aIfs[j].Led, sizeof(pData->aCts[i].aIfs[j].Led)); SSMR3PutU32(pSSMHandle, pData->aCts[i].aIfs[j].cbIOBuffer); if (pData->aCts[i].aIfs[j].cbIOBuffer) SSMR3PutMem(pSSMHandle, pData->aCts[i].aIfs[j].CTXSUFF(pbIOBuffer), pData->aCts[i].aIfs[j].cbIOBuffer); else Assert(pData->aCts[i].aIfs[j].CTXSUFF(pbIOBuffer) == NULL); } } return SSMR3PutU32(pSSMHandle, ~0); /* sanity/terminator */ } /** * Loads a saved ATA device state. * * @returns VBox status code. * @param pDevIns The device instance. * @param pSSMHandle The handle to the saved state. * @param u32Version The data unit version number. */ static DECLCALLBACK(int) ataLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle, uint32_t u32Version) { PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); int rc; uint32_t u32; if (u32Version != ATA_SAVED_STATE_VERSION) { AssertMsgFailed(("u32Version=%d\n", u32Version)); return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION; } /* * Restore valid parts of the PCIATAState structure */ for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { /* integrity check */ if (!ataAsyncIOIsIdle(&pData->aCts[i], false)) { AssertMsgFailed(("Async I/O for controller %d is active\n", i)); rc = VERR_SSM_DATA_UNIT_FORMAT_CHANGED; return rc; } SSMR3GetU8(pSSMHandle, &pData->aCts[i].iSelectedIf); SSMR3GetU8(pSSMHandle, &pData->aCts[i].iAIOIf); SSMR3GetU8(pSSMHandle, &pData->aCts[i].uAsyncIOState); SSMR3GetBool(pSSMHandle, &pData->aCts[i].fChainedTransfer); SSMR3GetBool(pSSMHandle, (bool *)&pData->aCts[i].fReset); SSMR3GetBool(pSSMHandle, (bool *)&pData->aCts[i].fRedo); SSMR3GetBool(pSSMHandle, (bool *)&pData->aCts[i].fRedoIdle); SSMR3GetBool(pSSMHandle, (bool *)&pData->aCts[i].fRedoDMALastDesc); SSMR3GetMem(pSSMHandle, &pData->aCts[i].BmDma, sizeof(pData->aCts[i].BmDma)); SSMR3GetGCPhys(pSSMHandle, &pData->aCts[i].pFirstDMADesc); SSMR3GetGCPhys(pSSMHandle, &pData->aCts[i].pLastDMADesc); SSMR3GetGCPhys(pSSMHandle, &pData->aCts[i].pRedoDMABuffer); SSMR3GetU32(pSSMHandle, &pData->aCts[i].cbRedoDMABuffer); for (uint32_t j = 0; j < RT_ELEMENTS(pData->aCts[i].aIfs); j++) { SSMR3GetBool(pSSMHandle, &pData->aCts[i].aIfs[j].fLBA48); SSMR3GetBool(pSSMHandle, &pData->aCts[i].aIfs[j].fATAPI); SSMR3GetBool(pSSMHandle, &pData->aCts[i].aIfs[j].fIrqPending); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].cMultSectors); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].cCHSCylinders); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].cCHSHeads); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].cCHSSectors); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].cSectorsPerIRQ); SSMR3GetU64(pSSMHandle, &pData->aCts[i].aIfs[j].cTotalSectors); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegFeature); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegFeatureHOB); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegError); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegNSector); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegNSectorHOB); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegSector); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegSectorHOB); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegLCyl); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegLCylHOB); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegHCyl); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegHCylHOB); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegSelect); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegStatus); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegCommand); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATARegDevCtl); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATATransferMode); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uTxDir); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].iBeginTransfer); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].iSourceSink); SSMR3GetBool(pSSMHandle, &pData->aCts[i].aIfs[j].fDMA); SSMR3GetBool(pSSMHandle, &pData->aCts[i].aIfs[j].fATAPITransfer); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].cbTotalTransfer); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].cbElementaryTransfer); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].iIOBufferCur); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].iIOBufferEnd); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].iIOBufferPIODataStart); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].iIOBufferPIODataEnd); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].iATAPILBA); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].cbATAPISector); SSMR3GetMem(pSSMHandle, &pData->aCts[i].aIfs[j].aATAPICmd, sizeof(pData->aCts[i].aIfs[j].aATAPICmd)); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATAPISenseKey); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].uATAPIASC); SSMR3GetU8(pSSMHandle, &pData->aCts[i].aIfs[j].cNotifiedMediaChange); SSMR3GetMem(pSSMHandle, &pData->aCts[i].aIfs[j].Led, sizeof(pData->aCts[i].aIfs[j].Led)); SSMR3GetU32(pSSMHandle, &pData->aCts[i].aIfs[j].cbIOBuffer); if (pData->aCts[i].aIfs[j].cbIOBuffer) SSMR3GetMem(pSSMHandle, pData->aCts[i].aIfs[j].CTXSUFF(pbIOBuffer), pData->aCts[i].aIfs[j].cbIOBuffer); else Assert(pData->aCts[i].aIfs[j].CTXSUFF(pbIOBuffer) == NULL); } } rc = SSMR3GetU32(pSSMHandle, &u32); if (VBOX_FAILURE(rc)) return rc; if (u32 != ~0U) { AssertMsgFailed(("u32=%#x expected ~0\n", u32)); rc = VERR_SSM_DATA_UNIT_FORMAT_CHANGED; return rc; } return VINF_SUCCESS; } /** * Construct a device instance for a VM. * * @returns VBox status. * @param pDevIns The device instance data. * If the registration structure is needed, pDevIns->pDevReg points to it. * @param iInstance Instance number. Use this to figure out which registers and such to use. * The device number is also found in pDevIns->iInstance, but since it's * likely to be freqently used PDM passes it as parameter. * @param pCfgHandle Configuration node handle for the device. Use this to obtain the configuration * of the device instance. It's also found in pDevIns->pCfgHandle, but like * iInstance it's expected to be used a bit in this function. */ static DECLCALLBACK(int) ataConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfgHandle) { PCIATAState *pData = PDMINS2DATA(pDevIns, PCIATAState *); PPDMIBASE pBase; int rc; bool fGCEnabled; bool fR0Enabled; uint32_t DelayIRQMillies; Assert(iInstance == 0); /* * Validate and read configuration. */ if (!CFGMR3AreValuesValid(pCfgHandle, "GCEnabled\0IRQDelay\0R0Enabled")) return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES, N_("PIIX3 configuration error: unknown option specified.")); rc = CFGMR3QueryBool(pCfgHandle, "GCEnabled", &fGCEnabled); if (rc == VERR_CFGM_VALUE_NOT_FOUND) fGCEnabled = true; else if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 configuration error: failed to read GCEnabled as boolean.")); Log(("%s: fGCEnabled=%d\n", __FUNCTION__, fGCEnabled)); rc = CFGMR3QueryBool(pCfgHandle, "R0Enabled", &fR0Enabled); if (rc == VERR_CFGM_VALUE_NOT_FOUND) fR0Enabled = true; else if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 configuration error: failed to read R0Enabled as boolean.")); Log(("%s: fR0Enabled=%d\n", __FUNCTION__, fR0Enabled)); rc = CFGMR3QueryU32(pCfgHandle, "IRQDelay", &DelayIRQMillies); if (rc == VERR_CFGM_VALUE_NOT_FOUND) DelayIRQMillies = 0; else if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 configuration error: failed to read IRQDelay as integer.")); Log(("%s: DelayIRQMillies=%d\n", __FUNCTION__, DelayIRQMillies)); Assert(DelayIRQMillies < 50); /* * Initialize data (most of it anyway). */ /* Status LUN. */ pData->IBase.pfnQueryInterface = ataStatus_QueryInterface; pData->ILeds.pfnQueryStatusLed = ataStatus_QueryStatusLed; /* pci */ pData->dev.config[0x00] = 0x86; /* Vendor: Intel */ pData->dev.config[0x01] = 0x80; pData->dev.config[0x02] = 0x10; /* Device: PIIX3 IDE */ pData->dev.config[0x03] = 0x70; pData->dev.config[0x04] = PCI_COMMAND_IOACCESS | PCI_COMMAND_MEMACCESS | PCI_COMMAND_BUSMASTER; pData->dev.config[0x09] = 0x8a; /* programming interface = PCI_IDE bus master is supported */ pData->dev.config[0x0a] = 0x01; /* class_sub = PCI_IDE */ pData->dev.config[0x0b] = 0x01; /* class_base = PCI_mass_storage */ pData->dev.config[0x0e] = 0x00; /* header_type */ pData->pDevIns = pDevIns; pData->fGCEnabled = fGCEnabled; pData->fR0Enabled = fR0Enabled; for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { pData->aCts[i].pDevInsHC = pDevIns; pData->aCts[i].pDevInsGC = PDMDEVINS_2_GCPTR(pDevIns); pData->aCts[i].DelayIRQMillies = (uint32_t)DelayIRQMillies; for (uint32_t j = 0; j < RT_ELEMENTS(pData->aCts[i].aIfs); j++) { pData->aCts[i].aIfs[j].iLUN = i * RT_ELEMENTS(pData->aCts) + j; pData->aCts[i].aIfs[j].pDevInsHC = pDevIns; pData->aCts[i].aIfs[j].pDevInsGC = PDMDEVINS_2_GCPTR(pDevIns); pData->aCts[i].aIfs[j].pControllerHC = &pData->aCts[i]; pData->aCts[i].aIfs[j].pControllerGC = MMHyperHC2GC(PDMDevHlpGetVM(pDevIns), &pData->aCts[i]); pData->aCts[i].aIfs[j].IBase.pfnQueryInterface = ataQueryInterface; pData->aCts[i].aIfs[j].IMountNotify.pfnMountNotify = ataMountNotify; pData->aCts[i].aIfs[j].IMountNotify.pfnUnmountNotify = ataUnmountNotify; pData->aCts[i].aIfs[j].Led.u32Magic = PDMLED_MAGIC; } } Assert(RT_ELEMENTS(pData->aCts) == 2); pData->aCts[0].irq = 14; pData->aCts[0].IOPortBase1 = 0x1f0; pData->aCts[0].IOPortBase2 = 0x3f6; pData->aCts[1].irq = 15; pData->aCts[1].IOPortBase1 = 0x170; pData->aCts[1].IOPortBase2 = 0x376; /* * Register the PCI device. * N.B. There's a hack in the PIIX3 PCI bridge device to assign this * device the slot next to itself. */ rc = PDMDevHlpPCIRegister(pDevIns, &pData->dev); if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 cannot register PCI device.")); AssertMsg(pData->dev.devfn == 9 || iInstance != 0, ("pData->dev.devfn=%d\n", pData->dev.devfn)); rc = PDMDevHlpPCIIORegionRegister(pDevIns, 4, 0x10, PCI_ADDRESS_SPACE_IO, ataBMDMAIORangeMap); if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 cannot register PCI I/O region for BMDMA.")); /* * Register the I/O ports. * The ports are all hardcoded and enforced by the PIIX3 host bridge controller. */ for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { rc = PDMDevHlpIOPortRegister(pDevIns, pData->aCts[i].IOPortBase1, 8, (RTHCPTR)i, ataIOPortWrite1, ataIOPortRead1, ataIOPortWriteStr1, ataIOPortReadStr1, "ATA I/O Base 1"); if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 cannot register I/O handlers.")); if (fGCEnabled) { rc = PDMDevHlpIOPortRegisterGC(pDevIns, pData->aCts[i].IOPortBase1, 8, (RTGCPTR)i, "ataIOPortWrite1", "ataIOPortRead1", "ataIOPortWriteStr1", "ataIOPortReadStr1", "ATA I/O Base 1"); if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 cannot register I/O handlers (GC).")); } if (fR0Enabled) { #if 1 rc = PDMDevHlpIOPortRegisterR0(pDevIns, pData->aCts[i].IOPortBase1, 8, (RTHCPTR)i, "ataIOPortWrite1", "ataIOPortRead1", NULL, NULL, "ATA I/O Base 1"); #else rc = PDMDevHlpIOPortRegisterR0(pDevIns, pData->aCts[i].IOPortBase1, 8, (RTHCPTR)i, "ataIOPortWrite1", "ataIOPortRead1", "ataIOPortWriteStr1", "ataIOPortReadStr1", "ATA I/O Base 1"); #endif if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, "PIIX3 cannot register I/O handlers (R0)."); } rc = PDMDevHlpIOPortRegister(pDevIns, pData->aCts[i].IOPortBase2, 1, (RTHCPTR)i, ataIOPortWrite2, ataIOPortRead2, NULL, NULL, "ATA I/O Base 2"); if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 cannot register base2 I/O handlers.")); if (fGCEnabled) { rc = PDMDevHlpIOPortRegisterGC(pDevIns, pData->aCts[i].IOPortBase2, 1, (RTGCPTR)i, "ataIOPortWrite2", "ataIOPortRead2", NULL, NULL, "ATA I/O Base 2"); if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 cannot register base2 I/O handlers (GC).")); } if (fR0Enabled) { rc = PDMDevHlpIOPortRegisterR0(pDevIns, pData->aCts[i].IOPortBase2, 1, (RTHCPTR)i, "ataIOPortWrite2", "ataIOPortRead2", NULL, NULL, "ATA I/O Base 2"); if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 cannot register base2 I/O handlers (R0).")); } #ifdef VBOX_WITH_STATISTICS /** @todo release too. */ for (uint32_t j = 0; j < RT_ELEMENTS(pData->aCts[i].aIfs); j++) { ATADevState *pIf = &pData->aCts[i].aIfs[j]; PDMDevHlpSTAMRegisterF(pDevIns, &pIf->StatReads, STAMTYPE_PROFILE_ADV, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling of the read operations.", "/Devices/ATA%d/Unit%d/Reads", i, j); PDMDevHlpSTAMRegisterF(pDevIns, &pIf->StatBytesRead, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Amount of data read.", "/Devices/ATA%d/Unit%d/ReadBytes", i, j); PDMDevHlpSTAMRegisterF(pDevIns, &pIf->StatWrites, STAMTYPE_PROFILE_ADV, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling of the write operations.","/Devices/ATA%d/Unit%d/Writes", i, j); PDMDevHlpSTAMRegisterF(pDevIns, &pIf->StatBytesWritten, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Amount of data written.", "/Devices/ATA%d/Unit%d/WrittenBytes", i, j); PDMDevHlpSTAMRegisterF(pDevIns, &pIf->StatFlushes, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling of the flush operations.","/Devices/ATA%d/Unit%d/Flushes", i, j); } PDMDevHlpSTAMRegisterF(pDevIns, &pData->aCts[i].StatAsyncOps, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "The number of async operations.", "/Devices/ATA%d/Async/Operations", i); /** @todo STAMUNIT_MICROSECS */ PDMDevHlpSTAMRegisterF(pDevIns, &pData->aCts[i].StatAsyncMinWait, STAMTYPE_U64_RESET, STAMVISIBILITY_ALWAYS, STAMUNIT_NONE, "Minimum wait in microseconds.", "/Devices/ATA%d/Async/MinWait", i); PDMDevHlpSTAMRegisterF(pDevIns, &pData->aCts[i].StatAsyncMaxWait, STAMTYPE_U64_RESET, STAMVISIBILITY_ALWAYS, STAMUNIT_NONE, "Maximum wait in microseconds.", "/Devices/ATA%d/Async/MaxWait", i); PDMDevHlpSTAMRegisterF(pDevIns, &pData->aCts[i].StatAsyncTimeUS, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_NONE, "Total time spent in microseconds.","/Devices/ATA%d/Async/TotalTimeUS", i); PDMDevHlpSTAMRegisterF(pDevIns, &pData->aCts[i].StatAsyncTime, STAMTYPE_PROFILE_ADV, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling of async operations.", "/Devices/ATA%d/Async/Time", i); PDMDevHlpSTAMRegisterF(pDevIns, &pData->aCts[i].StatLockWait, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, "Profiling of locks.", "/Devices/ATA%d/Async/LockWait", i); #endif /* VBOX_WITH_STATISTICS */ /* Initialize per-controller critical section */ char szName[24]; RTStrPrintf(szName, sizeof(szName), "ATA%d", i); rc = PDMDevHlpCritSectInit(pDevIns, &pData->aCts[i].lock, szName); if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 cannot initialize critical section.")); } /* * Attach status driver (optional). */ rc = PDMDevHlpDriverAttach(pDevIns, PDM_STATUS_LUN, &pData->IBase, &pBase, "Status Port"); if (VBOX_SUCCESS(rc)) pData->pLedsConnector = (PDMILEDCONNECTORS *)pBase->pfnQueryInterface(pBase, PDMINTERFACE_LED_CONNECTORS); else if (rc != VERR_PDM_NO_ATTACHED_DRIVER) { AssertMsgFailed(("Failed to attach to status driver. rc=%Vrc\n", rc)); return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 cannot attach to status driver.")); } /* * Attach the units. */ uint32_t cbTotalBuffer = 0; for (uint32_t i = 0; i < RT_ELEMENTS(pData->aCts); i++) { PATACONTROLLER pCtl = &pData->aCts[i]; /* * Start the worker thread. */ pCtl->uAsyncIOState = ATA_AIO_NEW; rc = RTSemEventCreate(&pCtl->AsyncIOSem); AssertRC(rc); rc = RTSemEventCreate(&pCtl->SuspendIOSem); AssertRC(rc); rc = RTSemMutexCreate(&pCtl->AsyncIORequestMutex); AssertRC(rc); ataAsyncIOClearRequests(pCtl); rc = RTThreadCreate(&pCtl->AsyncIOThread, ataAsyncIOLoop, (void *)pCtl, 128*1024, RTTHREADTYPE_IO, 0, "ATA"); AssertRC(rc); Assert(pCtl->AsyncIOThread != NIL_RTTHREAD && pCtl->AsyncIOSem != NIL_RTSEMEVENT && pCtl->SuspendIOSem != NIL_RTSEMEVENT && pCtl->AsyncIORequestMutex != NIL_RTSEMMUTEX); Log(("%s: controller %d AIO thread id %#x; sem %p susp_sem %p mutex %p\n", __FUNCTION__, i, pCtl->AsyncIOThread, pCtl->AsyncIOSem, pCtl->SuspendIOSem, pCtl->AsyncIORequestMutex)); for (uint32_t j = 0; j < RT_ELEMENTS(pCtl->aIfs); j++) { static const char *s_apszDescs[RT_ELEMENTS(pData->aCts)][RT_ELEMENTS(pCtl->aIfs)] = { { "Primary Master", "Primary Slave" }, { "Secondary Master", "Secondary Slave" } }; /* * Try attach the block device and get the interfaces, * required as well as optional. */ ATADevState *pIf = &pCtl->aIfs[j]; rc = PDMDevHlpDriverAttach(pDevIns, pIf->iLUN, &pIf->IBase, &pIf->pDrvBase, s_apszDescs[i][j]); if (VBOX_SUCCESS(rc)) rc = ataConfigLun(pDevIns, pIf); else if (rc == VERR_PDM_NO_ATTACHED_DRIVER) { pIf->pDrvBase = NULL; pIf->pDrvBlock = NULL; pIf->cbIOBuffer = 0; pIf->pbIOBufferHC = NULL; pIf->pbIOBufferGC = NIL_RTGCPHYS; LogRel(("PIIX3 ATA: LUN#%d: no unit\n", pIf->iLUN)); } else { AssertMsgFailed(("Failed to attach LUN#%d. rc=%Vrc\n", pIf->iLUN, rc)); switch (rc) { case VERR_ACCESS_DENIED: /* Error already catched by DrvHostBase */ return rc; default: return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS, N_( "PIIX3 cannot attach drive to the %s"), s_apszDescs[i][j]); } } cbTotalBuffer += pIf->cbIOBuffer; } } rc = PDMDevHlpSSMRegister(pDevIns, pDevIns->pDevReg->szDeviceName, iInstance, ATA_SAVED_STATE_VERSION, sizeof(*pData) + cbTotalBuffer, ataSaveLoadPrep, ataSaveExec, NULL, ataSaveLoadPrep, ataLoadExec, NULL); if (VBOX_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("PIIX3 cannot register save state handlers.")); /* * Initialize the device state. */ ataReset(pDevIns); return VINF_SUCCESS; } /** * The device registration structure. */ const PDMDEVREG g_DevicePIIX3IDE = { /* u32Version */ PDM_DEVREG_VERSION, /* szDeviceName */ "piix3ide", /* szGCMod */ "VBoxDDGC.gc", /* szR0Mod */ "VBoxDDR0.r0", /* pszDescription */ "Intel PIIX3 ATA controller.\n" " LUN #0 is primary master.\n" " LUN #1 is primary slave.\n" " LUN #2 is secondary master.\n" " LUN #3 is secondary slave.\n" " LUN #999 is the LED/Status connector.", /* fFlags */ PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT | PDM_DEVREG_FLAGS_GUEST_BITS_DEFAULT | PDM_DEVREG_FLAGS_GC | PDM_DEVREG_FLAGS_R0, /* fClass */ PDM_DEVREG_CLASS_STORAGE, /* cMaxInstances */ 1, /* cbInstance */ sizeof(PCIATAState), /* pfnConstruct */ ataConstruct, /* pfnDestruct */ ataDestruct, /* pfnRelocate */ ataRelocate, /* pfnIOCtl */ NULL, /* pfnPowerOn */ NULL, /* pfnReset */ ataReset, /* pfnSuspend */ ataSuspend, /* pfnResume */ ataResume, /* pfnAttach */ ataAttach, /* pfnDetach */ ataDetach, /* pfnQueryInterface. */ NULL, /* pfnInitComplete */ NULL, /* pfnPowerOff */ ataPowerOff }; #endif /* IN_RING3 */ #endif /* !VBOX_DEVICE_STRUCT_TESTCASE */