Ros-diffs July 2008

ros-diffs@reactos.org

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761 discussions

[ros-arm-bringup] 34668: - Don't re-map the MDL if it's already been built from non-paged pool. - Hackforce the partition type for disk ramdisks to be FAT32 for now.

by ros-arm-bringup＠svn.reactos.org

Author: ros-arm-bringup Date: Tue Jul 22 04:32:02 2008 New Revision: 34668 URL: http://svn.reactos.org/svn/reactos?rev=34668&view=rev Log: - Don't re-map the MDL if it's already been built from non-paged pool. - Hackforce the partition type for disk ramdisks to be FAT32 for now. Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/class/ramd… ============================================================================== --- trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] (original) +++ trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] Tue Jul 22 04:32:02 2008 @@ -1109,7 +1109,7 @@ // Get the MDL and check if it's mapped // Mdl = Irp->MdlAddress; - if (Mdl->MdlFlags & MDL_MAPPED_TO_SYSTEM_VA) + if (Mdl->MdlFlags & (MDL_MAPPED_TO_SYSTEM_VA | MDL_SOURCE_IS_NONPAGED_POOL)) { // // Use the mapped address @@ -1280,7 +1280,7 @@ DeviceExtension->Cylinders; PartitionInfo->HiddenSectors = DeviceExtension->HiddenSectors; PartitionInfo->PartitionNumber = 0; - PartitionInfo->PartitionType = *((PCHAR)BaseAddress + 450); + PartitionInfo->PartitionType = PARTITION_FAT32; //*((PCHAR)BaseAddress + 450); PartitionInfo->BootIndicator = (DeviceExtension->DiskType == RAMDISK_BOOT_DISK) ? TRUE: FALSE; PartitionInfo->RecognizedPartition = IsRecognizedPartition(PartitionInfo->

16 years, 5 months

[ros-arm-bringup] 34667: - We need to call MmMarkPageMapped for virtual mappings, except for those created thgouh MmCreateVirtualMappingForKernel (even though the other versions of the call can still do kernel mappings). - Refactored the virtual mapping function to support this. MmUnmapIoSpace now works properly.

by ros-arm-bringup＠svn.reactos.org

Author: ros-arm-bringup Date: Tue Jul 22 04:31:13 2008 New Revision: 34667 URL: http://svn.reactos.org/svn/reactos?rev=34667&view=rev Log: - We need to call MmMarkPageMapped for virtual mappings, except for those created thgouh MmCreateVirtualMappingForKernel (even though the other versions of the call can still do kernel mappings). - Refactored the virtual mapping function to support this. MmUnmapIoSpace now works properly. Modified: trunk/reactos/ntoskrnl/mm/arm/stubs.c Modified: trunk/reactos/ntoskrnl/mm/arm/stubs.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/arm/stubs.c?re… ============================================================================== --- trunk/reactos/ntoskrnl/mm/arm/stubs.c [iso-8859-1] (original) +++ trunk/reactos/ntoskrnl/mm/arm/stubs.c [iso-8859-1] Tue Jul 22 04:31:13 2008 @@ -480,10 +480,11 @@ NTSTATUS NTAPI -MmCreateVirtualMappingForKernel(IN PVOID Address, - IN ULONG Protection, - IN PPFN_NUMBER Pages, - IN ULONG PageCount) +MmCreateVirtualMappingInternal(IN PVOID Address, + IN ULONG Protection, + IN PPFN_NUMBER Pages, + IN ULONG PageCount, + IN BOOLEAN MarkAsMapped) { PMMPTE PointerPte, LastPte, PointerPde, LastPde; MMPTE TempPte, TempPde; @@ -560,6 +561,11 @@ while (PointerPte <= LastPte) { // + // Mark it as mapped + // + if (MarkAsMapped) MmMarkPageMapped(*Pages); + + // // Set the PFN // TempPte.u.Hard.L2.Small.BaseAddress = *Pages++; @@ -594,6 +600,24 @@ // UNIMPLEMENTED; return 0; +} + + +NTSTATUS +NTAPI +MmCreateVirtualMappingForKernel(IN PVOID Address, + IN ULONG Protection, + IN PPFN_NUMBER Pages, + IN ULONG PageCount) +{ + // + // Call the internal version + // + return MmCreateVirtualMappingInternal(Address, + Protection, + Pages, + PageCount, + FALSE); } NTSTATUS @@ -610,12 +634,13 @@ if (!(Process) || (Process == PsGetCurrentProcess())) { // - // Call the kernel version - // - return MmCreateVirtualMappingForKernel(Address, - Protection, - Pages, - PageCount); + // Call the internal version + // + return MmCreateVirtualMappingInternal(Address, + Protection, + Pages, + PageCount, + TRUE); } //

16 years, 5 months

[ros-arm-bringup] 34666: - Initialize BytesPerSector, SectorsPerTrack and NumberOfHeads to zero. - Calculate number of cylinders too now. - Save number of hidden sectors as well. - Implement support for IOCTL_DISK_GET_PARTITION_INFO (RamdiskGetPartitionInfo). - Implement support for IOCTL_DISK_GET_DRIVE_GEOMETRY (shared with IOCTL_CDROM_GET_GEOMETRY, IOCTL_STORAGE_GET_MEDIA_TYPES and IOCTL_DISK_GET_MEDIA_TYPES) - DiskLength should be a LARGE_INTEGER. - DiskOffset should be signed.

by ros-arm-bringup＠svn.reactos.org

Author: ros-arm-bringup Date: Tue Jul 22 03:52:18 2008 New Revision: 34666 URL: http://svn.reactos.org/svn/reactos?rev=34666&view=rev Log: - Initialize BytesPerSector, SectorsPerTrack and NumberOfHeads to zero. - Calculate number of cylinders too now. - Save number of hidden sectors as well. - Implement support for IOCTL_DISK_GET_PARTITION_INFO (RamdiskGetPartitionInfo). - Implement support for IOCTL_DISK_GET_DRIVE_GEOMETRY (shared with IOCTL_CDROM_GET_GEOMETRY, IOCTL_STORAGE_GET_MEDIA_TYPES and IOCTL_DISK_GET_MEDIA_TYPES) - DiskLength should be a LARGE_INTEGER. - DiskOffset should be signed. Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c trunk/reactos/include/reactos/drivers/ntddrdsk.h Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/class/ramd… ============================================================================== --- trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] (original) +++ trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] Tue Jul 22 03:52:18 2008 @@ -82,19 +82,32 @@ typedef struct _RAMDISK_DRIVE_EXTENSION { + // + // Inherited base class + // RAMDISK_EXTENSION; + + // + // Data we get from the creator + // GUID DiskGuid; UNICODE_STRING GuidString; UNICODE_STRING SymbolicLinkName; ULONG DiskType; RAMDISK_CREATE_OPTIONS DiskOptions; - LONGLONG DiskLength; + LARGE_INTEGER DiskLength; LONG DiskOffset; WCHAR DriveLetter; + ULONG BasePage; + + // + // Data we get from the disk + // ULONG BytesPerSector; ULONG SectorsPerTrack; ULONG NumberOfHeads; - ULONG BasePage; + ULONG Cylinders; + ULONG HiddenSectors; } RAMDISK_DRIVE_EXTENSION, *PRAMDISK_DRIVE_EXTENSION; ULONG MaximumViewLength; @@ -415,7 +428,8 @@ BIOS_PARAMETER_BLOCK BiosBlock; ULONG BytesPerSector, SectorsPerTrack, Heads, BytesRead; PVOID BaseAddress; - LARGE_INTEGER CurrentOffset; + LARGE_INTEGER CurrentOffset, CylinderSize, DiskLength; + ULONG CylinderCount, SizeByCylinders; // // Check if we're a boot RAM disk @@ -623,6 +637,7 @@ // *NewDriveExtension = DriveExtension; DriveExtension->Type = RamdiskDrive; + DiskLength = Input->DiskLength; ExInitializeFastMutex(&DriveExtension->DiskListLock); IoInitializeRemoveLock(&DriveExtension->RemoveLock, TAG('R', 'a', 'm', 'd'), @@ -637,10 +652,13 @@ DriveExtension->AttachedDevice = RamdiskBusFdo; DriveExtension->DiskType = Input->DiskType; DriveExtension->DiskOptions = Input->Options; - DriveExtension->DiskLength = Input->DiskLength; + DriveExtension->DiskLength = DiskLength; DriveExtension->DiskOffset = Input->DiskOffset; DriveExtension->BasePage = Input->BasePage; - + DriveExtension->BytesPerSector = 0; + DriveExtension->SectorsPerTrack = 0; + DriveExtension->NumberOfHeads = 0; + // // Make sure we don't free it later // @@ -699,18 +717,7 @@ goto FailCreate; } } - - // - // Sanity check for debugging - // - DPRINT1("[RAMDISK] Loaded...\n" - "Bytes per Sector: %d\n" - "Sectors per Track: %d\n" - "Number of Heads: %d\n", - DriveExtension->BytesPerSector, - DriveExtension->SectorsPerTrack, - DriveExtension->NumberOfHeads); - + // // Check if the drive settings haven't been set yet // @@ -740,7 +747,37 @@ DriveExtension->NumberOfHeads = 16; } } - + + // + // Calculate the cylinder size + // + CylinderSize.QuadPart = DriveExtension->BytesPerSector * + DriveExtension->SectorsPerTrack * + DriveExtension->NumberOfHeads; + CylinderCount = DiskLength.QuadPart / CylinderSize.QuadPart; + SizeByCylinders = CylinderSize.QuadPart * CylinderCount; + DriveExtension->Cylinders = CylinderCount; + if ((DiskLength.HighPart > 0) || (SizeByCylinders < DiskLength.LowPart)) + { + // + // Align cylinder size up + // + DriveExtension->Cylinders++; + } + + // + // Sanity check for debugging + // + DPRINT1("[RAMDISK] Loaded...\n" + "Bytes per Sector: %d\n" + "Sectors per Track: %d\n" + "Number of Heads: %d\n" + "Number of Cylinders: %d\n", + DriveExtension->BytesPerSector, + DriveExtension->SectorsPerTrack, + DriveExtension->NumberOfHeads, + DriveExtension->Cylinders); + // // Acquire the disk lock // @@ -1191,6 +1228,84 @@ NTSTATUS NTAPI +RamdiskGetPartitionInfo(IN PIRP Irp, + IN PRAMDISK_DRIVE_EXTENSION DeviceExtension) +{ + NTSTATUS Status; + PPARTITION_INFORMATION PartitionInfo; + PVOID BaseAddress; + LARGE_INTEGER Zero = {{0}}; + ULONG Length; + PIO_STACK_LOCATION IoStackLocation; + + // + // Validate the length + // + IoStackLocation = IoGetCurrentIrpStackLocation(Irp); + if (IoStackLocation->Parameters.DeviceIoControl. + OutputBufferLength < sizeof(PARTITION_INFORMATION)) + { + // + // Invalid length + // + Status = STATUS_BUFFER_TOO_SMALL; + Irp->IoStatus.Status = Status; + Irp->IoStatus.Information = 0; + return Status; + } + + // + // Map the partition table + // + BaseAddress = RamdiskMapPages(DeviceExtension, Zero, PAGE_SIZE, &Length); + if (!BaseAddress) + { + // + // No memory + // + Status = STATUS_INSUFFICIENT_RESOURCES; + Irp->IoStatus.Status = Status; + Irp->IoStatus.Information = 0; + return Status; + } + + // + // Fill out the information + // + PartitionInfo = Irp->AssociatedIrp.SystemBuffer; + PartitionInfo->StartingOffset.QuadPart = DeviceExtension->BytesPerSector; + PartitionInfo->PartitionLength.QuadPart = DeviceExtension->BytesPerSector * + DeviceExtension->SectorsPerTrack * + DeviceExtension->NumberOfHeads * + DeviceExtension->Cylinders; + PartitionInfo->HiddenSectors = DeviceExtension->HiddenSectors; + PartitionInfo->PartitionNumber = 0; + PartitionInfo->PartitionType = *((PCHAR)BaseAddress + 450); + PartitionInfo->BootIndicator = (DeviceExtension->DiskType == + RAMDISK_BOOT_DISK) ? TRUE: FALSE; + PartitionInfo->RecognizedPartition = IsRecognizedPartition(PartitionInfo-> + PartitionType); + PartitionInfo->RewritePartition = FALSE; + + DPRINT1("Partition length: %I64d\n", PartitionInfo->PartitionLength); + DPRINT1("Type: %lx. Recognized: %d\n", + PartitionInfo->PartitionType, PartitionInfo->RecognizedPartition); + + // + // Unmap the partition table + // + RamdiskUnmapPages(DeviceExtension, BaseAddress, Zero, Length); + + // + // Done + // + Irp->IoStatus.Status = STATUS_SUCCESS; + Irp->IoStatus.Information = sizeof(PARTITION_INFORMATION); + return STATUS_SUCCESS; +} + +NTSTATUS +NTAPI RamdiskOpenClose(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp) { @@ -1301,8 +1416,10 @@ NTSTATUS Status; PIO_STACK_LOCATION IoStackLocation = IoGetCurrentIrpStackLocation(Irp); PRAMDISK_BUS_EXTENSION DeviceExtension = DeviceObject->DeviceExtension; + PRAMDISK_DRIVE_EXTENSION DriveExtension = (PVOID)DeviceExtension; ULONG Information; PCDROM_TOC Toc; + PDISK_GEOMETRY DiskGeometry; // // Grab the remove lock @@ -1377,8 +1494,35 @@ case IOCTL_DISK_GET_DRIVE_GEOMETRY: case IOCTL_CDROM_GET_DRIVE_GEOMETRY: - UNIMPLEMENTED; - while (TRUE); + // + // Validate the length + // + if (IoStackLocation->Parameters.DeviceIoControl. + OutputBufferLength < sizeof(DISK_GEOMETRY)) + { + // + // Invalid length + // + Status = STATUS_BUFFER_TOO_SMALL; + break; + } + + // + // Fill it out + // + DiskGeometry = Irp->AssociatedIrp.SystemBuffer; + DiskGeometry->Cylinders.QuadPart = DriveExtension->Cylinders; + DiskGeometry->BytesPerSector = DriveExtension->BytesPerSector; + DiskGeometry->SectorsPerTrack = DriveExtension->SectorsPerTrack; + DiskGeometry->TracksPerCylinder = DriveExtension->NumberOfHeads; + DiskGeometry->MediaType = DriveExtension->DiskOptions.Fixed ? + FixedMedia : RemovableMedia; + + // + // We're done + // + Status = STATUS_SUCCESS; + Information = sizeof(DISK_GEOMETRY); break; // @@ -1427,7 +1571,6 @@ // // Validate the length // - DPRINT1("Output: %lx\n", IoStackLocation->Parameters.DeviceIoControl.OutputBufferLength); if (IoStackLocation->Parameters.DeviceIoControl. OutputBufferLength < sizeof(CDROM_TOC)) { @@ -1447,7 +1590,6 @@ // // Fill it out // - DPRINT1("TOC: %d\n", RAMDISK_TOC_SIZE); Toc->Length[0] = 0; Toc->Length[1] = RAMDISK_TOC_SIZE - sizeof(Toc->Length); Toc->FirstTrack = 1; @@ -1471,76 +1613,109 @@ case IOCTL_DISK_GET_PARTITION_INFO: + // + // Validate the length + // + if (IoStackLocation->Parameters.DeviceIoControl. + OutputBufferLength < sizeof(PARTITION_INFORMATION)) + { + // + // Invalid length + // + Status = STATUS_BUFFER_TOO_SMALL; + break; + } + + // + // Check if we need to do this sync or async + // + if (DriveExtension->DiskType > RAMDISK_MEMORY_MAPPED_DISK) + { + // + // Call the helper function + // + Status = RamdiskGetPartitionInfo(Irp, DriveExtension); + } + else + { + // + // Do it asynchronously later + // + goto CallWorker; + } + + // + // We're done + // + Information = Irp->IoStatus.Information; + break; + + case IOCTL_DISK_GET_DRIVE_LAYOUT: + UNIMPLEMENTED; while (TRUE); break; - case IOCTL_DISK_GET_DRIVE_LAYOUT: + case IOCTL_DISK_GET_LENGTH_INFO: UNIMPLEMENTED; while (TRUE); break; - case IOCTL_DISK_GET_LENGTH_INFO: + case IOCTL_DISK_IS_WRITABLE: UNIMPLEMENTED; while (TRUE); break; - case IOCTL_DISK_IS_WRITABLE: + case IOCTL_SCSI_MINIPORT: UNIMPLEMENTED; while (TRUE); break; - case IOCTL_SCSI_MINIPORT: + case IOCTL_STORAGE_QUERY_PROPERTY: UNIMPLEMENTED; while (TRUE); break; - case IOCTL_STORAGE_QUERY_PROPERTY: + case IOCTL_MOUNTDEV_QUERY_UNIQUE_ID: UNIMPLEMENTED; while (TRUE); break; - case IOCTL_MOUNTDEV_QUERY_UNIQUE_ID: + case IOCTL_MOUNTDEV_QUERY_STABLE_GUID: UNIMPLEMENTED; while (TRUE); break; - case IOCTL_MOUNTDEV_QUERY_STABLE_GUID: + case IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS: UNIMPLEMENTED; while (TRUE); break; - case IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS: + case IOCTL_VOLUME_SET_GPT_ATTRIBUTES: UNIMPLEMENTED; while (TRUE); break; - case IOCTL_VOLUME_SET_GPT_ATTRIBUTES: + case IOCTL_VOLUME_GET_GPT_ATTRIBUTES: UNIMPLEMENTED; while (TRUE); break; - case IOCTL_VOLUME_GET_GPT_ATTRIBUTES: + case IOCTL_VOLUME_OFFLINE: UNIMPLEMENTED; while (TRUE); break; - case IOCTL_VOLUME_OFFLINE: - - UNIMPLEMENTED; - while (TRUE); - break; - default: // @@ -1559,6 +1734,7 @@ // // Queue the request to our worker thread // +CallWorker: Status = SendIrpToThread(DeviceObject, Irp); CompleteRequest: Modified: trunk/reactos/include/reactos/drivers/ntddrdsk.h URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/drivers/nt… ============================================================================== --- trunk/reactos/include/reactos/drivers/ntddrdsk.h [iso-8859-1] (original) +++ trunk/reactos/include/reactos/drivers/ntddrdsk.h [iso-8859-1] Tue Jul 22 03:52:18 2008 @@ -66,8 +66,8 @@ GUID DiskGuid; ULONG DiskType; RAMDISK_CREATE_OPTIONS Options; - ULONGLONG DiskLength; - ULONG DiskOffset; + LARGE_INTEGER DiskLength; + LONG DiskOffset; union { struct

16 years, 5 months

[ros-arm-bringup] 34665: - We have to unpack the BIOS block before actually reading it. - Now we correctly read 512 bytes per sector instead of 0. - We are almost there!

by ros-arm-bringup＠svn.reactos.org

Author: ros-arm-bringup Date: Tue Jul 22 02:12:05 2008 New Revision: 34665 URL: http://svn.reactos.org/svn/reactos?rev=34665&view=rev Log: - We have to unpack the BIOS block before actually reading it. - Now we correctly read 512 bytes per sector instead of 0. - We are almost there! Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/class/ramd… ============================================================================== --- trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] (original) +++ trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] Tue Jul 22 02:12:05 2008 @@ -412,6 +412,7 @@ WCHAR LocalBuffer[16]; UNICODE_STRING SymbolicLinkName, DriveString, GuidString, DeviceName; PPACKED_BOOT_SECTOR BootSector; + BIOS_PARAMETER_BLOCK BiosBlock; ULONG BytesPerSector, SectorsPerTrack, Heads, BytesRead; PVOID BaseAddress; LARGE_INTEGER CurrentOffset; @@ -668,9 +669,10 @@ // Get the data // BootSector = (PPACKED_BOOT_SECTOR)BaseAddress; - BytesPerSector = BootSector->PackedBpb.BytesPerSector[0]; - SectorsPerTrack = BootSector->PackedBpb.SectorsPerTrack[0]; - Heads = BootSector->PackedBpb.Heads[0]; + FatUnpackBios(&BiosBlock, &BootSector->PackedBpb); + BytesPerSector = BiosBlock.BytesPerSector; + SectorsPerTrack = BiosBlock.SectorsPerTrack; + Heads = BiosBlock.Heads; // // Save it

16 years, 5 months

[ros-arm-bringup] 34664: - Implement MmRawDeleteVirtualMapping. - RamdiskUnmapPages works now.

by ros-arm-bringup＠svn.reactos.org

Author: ros-arm-bringup Date: Tue Jul 22 02:11:33 2008 New Revision: 34664 URL: http://svn.reactos.org/svn/reactos?rev=34664&view=rev Log: - Implement MmRawDeleteVirtualMapping. - RamdiskUnmapPages works now. Modified: trunk/reactos/ntoskrnl/mm/arm/stubs.c Modified: trunk/reactos/ntoskrnl/mm/arm/stubs.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/arm/stubs.c?re… ============================================================================== --- trunk/reactos/ntoskrnl/mm/arm/stubs.c [iso-8859-1] (original) +++ trunk/reactos/ntoskrnl/mm/arm/stubs.c [iso-8859-1] Tue Jul 22 02:11:33 2008 @@ -226,10 +226,30 @@ NTAPI MmRawDeleteVirtualMapping(IN PVOID Address) { - // - // TODO - // - UNIMPLEMENTED; + PMMPTE PointerPte, PointerPde; + + // + // Get the PDE + // + PointerPde = MiGetPdeAddress(Address); + if (PointerPde->u.Hard.L1.Fault.Type == FaultPte) return; + + // + // Get the PTE + // + PointerPte = MiGetPteAddress(Address); + ASSERT(PointerPte->u.Hard.L2.Small.Type == SmallPte); + + // + // Destroy the PTE + // + PointerPte->u.Hard.AsUlong = 0; + ASSERT(PointerPte->u.Hard.L2.Fault.Type == FaultPte); + + // + // Flush the TLB + // + KiFlushSingleTb(TRUE, Address); } VOID

16 years, 5 months

[ros-arm-bringup] 34663: - Jesus, Fix yet another math bug in RamdiskMapPages (we were lucky not to hit it, that's all). - Implement RamdiskUnmapPages. - Need to implement MmRawDeleteVirtualMapping to make this last step work.

by ros-arm-bringup＠svn.reactos.org

Author: ros-arm-bringup Date: Tue Jul 22 01:54:25 2008 New Revision: 34663 URL: http://svn.reactos.org/svn/reactos?rev=34663&view=rev Log: - Jesus, Fix yet another math bug in RamdiskMapPages (we were lucky not to hit it, that's all). - Implement RamdiskUnmapPages. - Need to implement MmRawDeleteVirtualMapping to make this last step work. Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/class/ramd… ============================================================================== --- trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] (original) +++ trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] Tue Jul 22 01:54:25 2008 @@ -315,7 +315,7 @@ // // Calculate pages spanned for the mapping // - ActualLength = ADDRESS_AND_SIZE_TO_SPAN_PAGES(Offset.QuadPart, Length); + ActualLength = ADDRESS_AND_SIZE_TO_SPAN_PAGES(ActualOffset.QuadPart, Length); DPRINT1("Length in pages: %d\n", ActualLength); // @@ -344,16 +344,57 @@ return MappedBase; } -PVOID +VOID NTAPI RamdiskUnmapPages(IN PRAMDISK_DRIVE_EXTENSION DeviceExtension, IN PVOID BaseAddress, IN LARGE_INTEGER Offset, IN ULONG Length) { - UNIMPLEMENTED; - while (TRUE); - return NULL; + LARGE_INTEGER ActualOffset; + SIZE_T ActualLength; + ULONG PageOffset; + + // + // We only support boot disks for now + // + ASSERT(DeviceExtension->DiskType == RAMDISK_BOOT_DISK); + + // + // Calculate the actual offset in the drive + // + ActualOffset.QuadPart = DeviceExtension->DiskOffset + Offset.QuadPart; + DPRINT1("Disk offset is: %d and Offset is: %I64d. Total: %I64d\n", + DeviceExtension->DiskOffset, Offset, ActualOffset); + + // + // Calculate pages spanned for the mapping + // + ActualLength = ADDRESS_AND_SIZE_TO_SPAN_PAGES(ActualOffset.QuadPart, Length); + DPRINT1("Length in pages: %d\n", ActualLength); + + // + // And convert this back to bytes + // + ActualLength <<= PAGE_SHIFT; + DPRINT1("Length in bytes: %d\n", ActualLength); + + // + // Get the offset within the page + // + PageOffset = BYTE_OFFSET(ActualOffset.QuadPart); + DPRINT1("Page offset: %lx\n", PageOffset); + + // + // Calculate actual base address where we mapped this + // + BaseAddress = (PVOID)((ULONG_PTR)BaseAddress - PageOffset); + DPRINT1("Unmapping at: %p\n", BaseAddress); + + // + // Unmap the I/O space we got from the loader + // + MmUnmapIoSpace(BaseAddress, ActualLength); } NTSTATUS

16 years, 5 months

[ros-arm-bringup] 34662: - Epic Fail? Fix another math bug...it actually works now! - Fix another wrong debug print.

by ros-arm-bringup＠svn.reactos.org

Author: ros-arm-bringup Date: Tue Jul 22 01:46:09 2008 New Revision: 34662 URL: http://svn.reactos.org/svn/reactos?rev=34662&view=rev Log: - Epic Fail? Fix another math bug...it actually works now! - Fix another wrong debug print. Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/class/ramd… ============================================================================== --- trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] (original) +++ trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] Tue Jul 22 01:46:09 2008 @@ -296,8 +296,8 @@ // // Convert to pages // - ActualPages.QuadPart = BYTES_TO_PAGES(ActualOffset.QuadPart); - DPRINT1("Offset in pages is: %d\n", ActualOffset); + ActualPages.QuadPart = ActualOffset.QuadPart >> PAGE_SHIFT; + DPRINT1("Offset in pages is: %I64x\n", ActualPages); // // Now add the base page

16 years, 5 months

[ros-arm-bringup] 34661: - Double fail: Fix a math bug, calculate the actual offset in the mapping and return it, and don't forget to return the total length read too.

by ros-arm-bringup＠svn.reactos.org

Author: ros-arm-bringup Date: Tue Jul 22 01:40:00 2008 New Revision: 34661 URL: http://svn.reactos.org/svn/reactos?rev=34661&view=rev Log: - Double fail: Fix a math bug, calculate the actual offset in the mapping and return it, and don't forget to return the total length read too. Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/class/ramd… ============================================================================== --- trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] (original) +++ trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] Tue Jul 22 01:40:00 2008 @@ -276,6 +276,7 @@ { PHYSICAL_ADDRESS PhysicalAddress; PVOID MappedBase; + ULONG PageOffset; SIZE_T ActualLength; LARGE_INTEGER ActualOffset; LARGE_INTEGER ActualPages; @@ -295,13 +296,13 @@ // // Convert to pages // - ActualOffset.QuadPart = BYTES_TO_PAGES(ActualOffset.QuadPart); + ActualPages.QuadPart = BYTES_TO_PAGES(ActualOffset.QuadPart); DPRINT1("Offset in pages is: %d\n", ActualOffset); // // Now add the base page // - ActualPages.QuadPart = DeviceExtension->BasePage + ActualOffset.QuadPart; + ActualPages.QuadPart = DeviceExtension->BasePage + ActualPages.QuadPart; DPRINT1("Ramdisk mapped at page: %d, actual page is: %I64d\n", DeviceExtension->BasePage, ActualPages); @@ -324,9 +325,21 @@ DPRINT1("Length in bytes: %d\n", ActualLength); // + // Get the offset within the page + // + PageOffset = BYTE_OFFSET(ActualOffset.QuadPart); + DPRINT1("Page offset: %lx\n", PageOffset); + + // // Map the I/O Space from the loader // MappedBase = MmMapIoSpace(PhysicalAddress, ActualLength, MmCached); + + // + // Return actual offset within the page as well as the length + // + if (MappedBase) MappedBase = (PVOID)((ULONG_PTR)MappedBase + PageOffset); + *OutputLength = Length; DPRINT1("Mapped at: %p\n", MappedBase); return MappedBase; }

16 years, 5 months

[ros-arm-bringup] 34660: - Fail: was using the wrong structure (the boot sector is a BOOT_SECTOR which contains the BIOS Parameter Block, not a BPB directly). - Fix wrong debug print too.

by ros-arm-bringup＠svn.reactos.org

Author: ros-arm-bringup Date: Tue Jul 22 01:31:31 2008 New Revision: 34660 URL: http://svn.reactos.org/svn/reactos?rev=34660&view=rev Log: - Fail: was using the wrong structure (the boot sector is a BOOT_SECTOR which contains the BIOS Parameter Block, not a BPB directly). - Fix wrong debug print too. Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/class/ramd… ============================================================================== --- trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] (original) +++ trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] Tue Jul 22 01:31:31 2008 @@ -289,7 +289,7 @@ // Calculate the actual offset in the drive // ActualOffset.QuadPart = DeviceExtension->DiskOffset + Offset.QuadPart; - DPRINT1("Disk offset is: %I64d and Offset is: %I64d. Total: %I64d\n", + DPRINT1("Disk offset is: %d and Offset is: %I64d. Total: %I64d\n", DeviceExtension->DiskOffset, Offset, ActualOffset); // @@ -328,10 +328,7 @@ // MappedBase = MmMapIoSpace(PhysicalAddress, ActualLength, MmCached); DPRINT1("Mapped at: %p\n", MappedBase); - - UNIMPLEMENTED; - while (TRUE); - return NULL; + return MappedBase; } PVOID @@ -360,7 +357,7 @@ PVOID Buffer; WCHAR LocalBuffer[16]; UNICODE_STRING SymbolicLinkName, DriveString, GuidString, DeviceName; - PPACKED_BIOS_PARAMETER_BLOCK Parameters; + PPACKED_BOOT_SECTOR BootSector; ULONG BytesPerSector, SectorsPerTrack, Heads, BytesRead; PVOID BaseAddress; LARGE_INTEGER CurrentOffset; @@ -616,10 +613,10 @@ // // Get the data // - Parameters = (PPACKED_BIOS_PARAMETER_BLOCK)BaseAddress; - BytesPerSector = Parameters->BytesPerSector[0]; - SectorsPerTrack = Parameters->SectorsPerTrack[0]; - Heads = Parameters->Heads[0]; + BootSector = (PPACKED_BOOT_SECTOR)BaseAddress; + BytesPerSector = BootSector->PackedBpb.BytesPerSector[0]; + SectorsPerTrack = BootSector->PackedBpb.SectorsPerTrack[0]; + Heads = BootSector->PackedBpb.Heads[0]; // // Save it @@ -648,6 +645,17 @@ } // + // Sanity check for debugging + // + DPRINT1("[RAMDISK] Loaded...\n" + "Bytes per Sector: %d\n" + "Sectors per Track: %d\n" + "Number of Heads: %d\n", + DriveExtension->BytesPerSector, + DriveExtension->SectorsPerTrack, + DriveExtension->NumberOfHeads); + + // // Check if the drive settings haven't been set yet // if ((DriveExtension->BytesPerSector == 0) || @@ -676,7 +684,7 @@ DriveExtension->NumberOfHeads = 16; } } - + // // Acquire the disk lock //

16 years, 5 months

[ros-arm-bringup] 34659: - Save base page where loader mapped the ramdisk. - Try to implement RamdiskMapPages for boot disks as it seems we're calling them now... - The math works and the I/O mapping too, but I'm not sure we're reading correct data, so still left this unimplemented for now.

by ros-arm-bringup＠svn.reactos.org

Author: ros-arm-bringup Date: Tue Jul 22 01:21:11 2008 New Revision: 34659 URL: http://svn.reactos.org/svn/reactos?rev=34659&view=rev Log: - Save base page where loader mapped the ramdisk. - Try to implement RamdiskMapPages for boot disks as it seems we're calling them now... - The math works and the I/O mapping too, but I'm not sure we're reading correct data, so still left this unimplemented for now. Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c Modified: trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/storage/class/ramd… ============================================================================== --- trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] (original) +++ trunk/reactos/drivers/storage/class/ramdisk/ramdisk.c [iso-8859-1] Tue Jul 22 01:21:11 2008 @@ -94,6 +94,7 @@ ULONG BytesPerSector; ULONG SectorsPerTrack; ULONG NumberOfHeads; + ULONG BasePage; } RAMDISK_DRIVE_EXTENSION, *PRAMDISK_DRIVE_EXTENSION; ULONG MaximumViewLength; @@ -273,7 +274,61 @@ IN ULONG Length, OUT PULONG OutputLength) { - DPRINT1("Mapping %lx bytes at %I64x\n", Length, Offset.QuadPart); + PHYSICAL_ADDRESS PhysicalAddress; + PVOID MappedBase; + SIZE_T ActualLength; + LARGE_INTEGER ActualOffset; + LARGE_INTEGER ActualPages; + + // + // We only support boot disks for now + // + ASSERT(DeviceExtension->DiskType == RAMDISK_BOOT_DISK); + + // + // Calculate the actual offset in the drive + // + ActualOffset.QuadPart = DeviceExtension->DiskOffset + Offset.QuadPart; + DPRINT1("Disk offset is: %I64d and Offset is: %I64d. Total: %I64d\n", + DeviceExtension->DiskOffset, Offset, ActualOffset); + + // + // Convert to pages + // + ActualOffset.QuadPart = BYTES_TO_PAGES(ActualOffset.QuadPart); + DPRINT1("Offset in pages is: %d\n", ActualOffset); + + // + // Now add the base page + // + ActualPages.QuadPart = DeviceExtension->BasePage + ActualOffset.QuadPart; + DPRINT1("Ramdisk mapped at page: %d, actual page is: %I64d\n", + DeviceExtension->BasePage, ActualPages); + + // + // Calculate final amount of bytes + // + PhysicalAddress.QuadPart = ActualPages.QuadPart << PAGE_SHIFT; + DPRINT1("Physical Address is: %I64x\n", PhysicalAddress); + + // + // Calculate pages spanned for the mapping + // + ActualLength = ADDRESS_AND_SIZE_TO_SPAN_PAGES(Offset.QuadPart, Length); + DPRINT1("Length in pages: %d\n", ActualLength); + + // + // And convert this back to bytes + // + ActualLength <<= PAGE_SHIFT; + DPRINT1("Length in bytes: %d\n", ActualLength); + + // + // Map the I/O Space from the loader + // + MappedBase = MmMapIoSpace(PhysicalAddress, ActualLength, MmCached); + DPRINT1("Mapped at: %p\n", MappedBase); + UNIMPLEMENTED; while (TRUE); return NULL; @@ -532,6 +587,7 @@ DriveExtension->DiskOptions = Input->Options; DriveExtension->DiskLength = Input->DiskLength; DriveExtension->DiskOffset = Input->DiskOffset; + DriveExtension->BasePage = Input->BasePage; // // Make sure we don't free it later

16 years, 5 months

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Ros-diffs July 2008