DefaultViewCount DefaultViewLength DEFINE_GUID DO_XIP DriverEntry DriverRegistryPath ExportBootDiskAsCd IsWinPEBoot MarkRamdisksAsRemovable MaximumPerDiskViewLength MaximumViewCount MaximumViewLength MinimumViewCount MinimumViewLength NDEBUG QueryParameters RAMDISK_DEVICE_STATE RAMDISK_DEVICE_TYPE RAMDISK_SESSION_SIZE RAMDISK_TOC_SIZE RamdiskAddDevice RamdiskBus RamdiskBusFdo RamdiskCreateDiskDevice RamdiskCreateRamdisk RamdiskDeleteDiskDevice RamdiskDeviceControl RamdiskDrive RamdiskFlushBuffers RamdiskGetPartitionInfo RamdiskMapPages RamdiskOpenClose RamdiskPnp RamdiskPower RamdiskQueryDeviceRelations RamdiskReadWrite RamdiskReadWriteReal RamdiskRemoveBusDevice RamdiskScsi RamdiskSetPartitionInfo RamdiskStateBusRemoved RamdiskStateEnumerated RamdiskStatePaused RamdiskStateRemoved RamdiskStateStarted RamdiskStateStopped RamdiskStateUninitialized RamdiskSystemControl RamdiskUnload RamdiskUnmapPages RamdiskWorkerThread ReportDetectedDevice SendIrpToThread TOC_DATA_TRACK

VOID NTAPI RamdiskUnmapPages ( IN PRAMDISK_DRIVE_EXTENSION  DeviceExtension, IN PVOID  BaseAddress, IN LARGE_INTEGER  Offset, IN ULONG  Length  ) Definition at line 354 of file ramdisk.c. Referenced by RamdiskCreateDiskDevice(), RamdiskGetPartitionInfo(), RamdiskReadWriteReal(), and RamdiskSetPartitionInfo(). { 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; // // Calculate pages spanned for the mapping // ActualLength = ADDRESS_AND_SIZE_TO_SPAN_PAGES(ActualOffset.QuadPart, Length); // // And convert this back to bytes // ActualLength <<= PAGE_SHIFT; // // Get the offset within the page // PageOffset = BYTE_OFFSET(ActualOffset.QuadPart); // // Calculate actual base address where we mapped this // BaseAddress = (PVOID)((ULONG_PTR)BaseAddress - PageOffset); // // Unmap the I/O space we got from the loader // MmUnmapIoSpace(BaseAddress, ActualLength); }