diff options
Diffstat (limited to 'src/VBox/Devices/Storage/DevBusLogic.cpp')
| -rw-r--r-- | src/VBox/Devices/Storage/DevBusLogic.cpp | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/VBox/Devices/Storage/DevBusLogic.cpp b/src/VBox/Devices/Storage/DevBusLogic.cpp index a5cf9f9a..21f59250 100644 --- a/src/VBox/Devices/Storage/DevBusLogic.cpp +++ b/src/VBox/Devices/Storage/DevBusLogic.cpp @@ -979,10 +979,12 @@ typedef struct ESCMD unsigned char uReserved2 : 3; /** Length of the SCSI CDB. */ uint8_t cbCDB; - /** The SCSI CDB. (A CDB can be 12 bytes long.) */ - uint8_t abCDB[12]; + /** The SCSI CDB. (A CDB from our BIOS can be up to 16 bytes long + * which works with our emulation even though the original BusLogic HBA + * supports only 12 byte CDBs). */ + uint8_t abCDB[16]; } ESCMD, *PESCMD; -AssertCompileSize(ESCMD, 24); +AssertCompileSize(ESCMD, 28); /** * Task state for a CCB request. @@ -3161,7 +3163,8 @@ static int buslogicR3DeviceSCSIRequestSetup(PPDMDEVINS pDevIns, PBUSLOGIC pThis, blPhysReadMeta(pDevIns, pThis, GCPhysAddrCCB, &CCBGuest, sizeof(CCB32)); uTargetIdCCB = pThis->fMbxIs24Bit ? CCBGuest.o.uTargetId : CCBGuest.n.uTargetId; - if (RT_LIKELY(uTargetIdCCB < RT_ELEMENTS(pThisCC->aDeviceStates))) + if ( RT_LIKELY(uTargetIdCCB < RT_ELEMENTS(pThisCC->aDeviceStates)) + && CCBGuest.c.cbCDB <= RT_ELEMENTS(CCBGuest.c.abCDB)) { PBUSLOGICDEVICE pTgtDev = &pThisCC->aDeviceStates[uTargetIdCCB]; @@ -3378,7 +3381,7 @@ static void buslogicR3ProcessBiosReq(PPDMDEVINS pDevIns, PBUSLOGIC pThis, PBUSLO PESCMD pCmd = (PESCMD)pThis->aCommandBuffer; if (RT_LIKELY( pCmd->uTargetId < RT_ELEMENTS(pThisCC->aDeviceStates) - && pCmd->cbCDB <= 16)) + && pCmd->cbCDB <= RT_ELEMENTS(pCmd->abCDB))) { PBUSLOGICDEVICE pTgtDev = &pThisCC->aDeviceStates[pCmd->uTargetId]; |