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windows-nt/Source/XPSP1/NT/base/ntos/verifier/vihal.h
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/*++
Copyright (c) 1999 Microsoft Corporation
Module Name:
vihal.h
Abstract:
This module contains the private declarations to verify hal usage & apis.
Author:
Jordan Tigani (jtigani) 12-Nov-1999
Revision History:
6-23-00: (jtigani) Moved from halverifier.c
--*/
/////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////// Hal verifier defines
/////////////////////////////////////////////////////////////////////
//
// Bugcheck codes -- the major code is HAL_VERIFIER_DETECTED_VIOLATION --
// the sub-code is the HV_*
//
#define HAL_VERIFIER_DETECTED_VIOLATION 0xE6
#define HV_MISCELLANEOUS_ERROR 0x00
#define HV_PERFORMANCE_COUNTER_DECREASED 0x01
#define HV_PERFORMANCE_COUNTER_SKIPPED 0x02
#define HV_FREED_TOO_MANY_COMMON_BUFFERS 0x03
#define HV_FREED_TOO_MANY_ADAPTER_CHANNELS 0x04
#define HV_FREED_TOO_MANY_MAP_REGISTERS 0x05
#define HV_FREED_TOO_MANY_SCATTER_GATHER_LISTS 0x06
#define HV_LEFTOVER_COMMON_BUFFERS 0x07
#define HV_LEFTOVER_ADAPTER_CHANNELS 0x08
#define HV_LEFTOVER_MAP_REGISTERS 0x09
#define HV_LEFTOVER_SCATTER_GATHER_LISTS 0x0A
#define HV_TOO_MANY_ADAPTER_CHANNELS 0x0B
#define HV_TOO_MANY_MAP_REGISTERS 0x0C
#define HV_DID_NOT_FLUSH_ADAPTER_BUFFERS 0x0D
#define HV_DMA_BUFFER_NOT_LOCKED 0x0E
#define HV_BOUNDARY_OVERRUN 0x0F
#define HV_CANNOT_FREE_MAP_REGISTERS 0x10
#define HV_DID_NOT_PUT_ADAPTER 0x11
#define HV_MDL_FLAGS_NOT_SET 0x12
#define HV_BAD_IRQL 0x13
#define HV_BAD_IRQL_JUST_WARN 0x14
#define HV_OUT_OF_MAP_REGISTERS 0x15
#define HV_FLUSH_EMPTY_BUFFERS 0x16
#define HV_MISMATCHED_MAP_FLUSH 0x17
#define HV_ADAPTER_ALREADY_RELEASED 0x18
#define HV_NULL_DMA_ADAPTER 0x19
#define HV_MAP_FLUSH_NO_TRANSFER 0x1A
#define HV_ADDRESS_NOT_IN_MDL 0x1b
#define HV_DATA_LOSS 0x1c
#define HV_DOUBLE_MAP_REGISTER 0x1d
#define HV_OBSOLETE_API 0x1e
#define HV_BAD_MDL 0x1f
#define HV_FLUSH_NOT_MAPPED 0x20
#define HV_MAP_ZERO_LENGTH_BUFFER 0x21
///
// Codes to decide what to do when we hit a driver problem.
///
#define HVC_IGNORE 0x00 // Do nothing.
#define HVC_WARN 0x02 // Print message # continue
#define HVC_ASSERT 0x04 // Print message # break
#define HVC_BUGCHECK 0x08 // Print message # bugcheck
#define HVC_ONCE 0x10 // combined with another code,
#define HAL_VERIFIER_POOL_TAG 'VlaH' // HalV backwards //
//
// This is how we can recognize our double buffers
//
#define MAP_REGISTER_FILL_CHAR 0x0E
#define PADDING_FILL_CHAR 0x0F
//
// Since we hook the "MapRegisterBase" with a MapRegisterFile, we sign
// the first four bytes so we can tell the difference between the HAL's
// map register base and our map register file.
//
#define MRF_SIGNATURE 0xACEFD00D
//
// This is what we use if the hal has returned a NULL map register base so
// that drivers don't assume that they don't have flush adapter buffers.
//
#define MRF_NULL_PLACEHOLDER (PVOID)(LONG_PTR)(LONG)0xDEADF00D
//
// This should devide evenly into 2^32
//
#define MAX_COUNTERS 0x20
//
// Flags to indicate where the buffer tagging shall happen
//
#define TAG_BUFFER_START 0x01
#define TAG_BUFFER_END 0x02
//
// How many map registers we can double-buffer at once
// using physical contiguous memory.
// This must be an integral multiple of the number of bits in a ULONG
//
#define MAX_CONTIGUOUS_MAP_REGISTERS 0x20
//
// Flags that describe a map register
//
#define MAP_REGISTER_WRITE 0x01 // the transfer is a write to device
#define MAP_REGISTER_READ 0x02 // the transfer is a read from device
#define MAP_REGISTER_RW_MASK (MAP_REGISTER_WRITE | MAP_REGISTER_READ)
/////////////////////////////////////////////////////////////////////
//////////////////////// Safe multi-processor 64 bit reads and writes
/////////////////////////////////////////////////////////////////////
#if defined (_X86_)
//
// Only save the time stamp counter on x86 machines
//
#define ViRdtsc ViRdtscX86
//
// Structure to do a locked 64 bit write /compare without
// a spinlock.
//
typedef struct _TIMER64 {
ULONG TimeLow;
ULONG TimeHigh1;
ULONG TimeHigh2;
ULONG Reserved; // for packing sake //
} TIMER64, *PTIMER64;
//
// Since we can't do a 64 bit atomic operation
// without a spinlock, we have to monkey around a bit
// This method comes from the acpi timer code.
//
#define SAFE_READ_TIMER64(WriteLargeInteger, ReadTimer64) \
\
while (TRUE) { \
(WriteLargeInteger).HighPart = (ReadTimer64).TimeHigh2; \
(WriteLargeInteger).LowPart = (ReadTimer64).TimeLow; \
\
if ((ULONG)(WriteLargeInteger).HighPart == (ReadTimer64).TimeHigh1) \
break; \
\
_asm { rep nop }; \
}
#define SAFE_WRITE_TIMER64(WriteTimer64, ReadLargeInteger) \
WriteTimer64.TimeHigh1 = (ReadLargeInteger).HighPart; \
WriteTimer64.TimeLow = (ReadLargeInteger).LowPart; \
WriteTimer64.TimeHigh2 = (ReadLargeInteger).HighPart;
// defined (_X86_) //
#else
// ! defined (_X86_) //
#if defined(_IA64_)
#define ViRdtsc ViRdtscIA64
#else // !_IA64_
//
// Only save the time stamp counter on x86 and ia64 machines
//
#define ViRdtsc ViRdtscNull
#endif // !_IA64_
//
// Alpha or IA64 can do atomic 64 bit read/writes.
//
typedef LARGE_INTEGER TIMER64;
#define SAFE_READ_TIMER64(WriteLargeInteger, ReadTimer64) \
InterlockedExchangePointer( \
&((PVOID) (WriteLargeInteger).QuadPart ), \
(PVOID) (ReadTimer64).QuadPart \
);
#define SAFE_WRITE_TIMER64(WriteTimer64, ReadLargeInteger) \
InterlockedExchangePointer( \
&((PVOID) (WriteTimer64).QuadPart ), \
(PVOID) (ReadLargeInteger).QuadPart \
);
// ! defined (_X86_) //
#endif
/////////////////////////////////////////////////////////////////////
///////////////////////////////////////// Hal verifier global externs
/////////////////////////////////////////////////////////////////////
extern ULONG VfVerifyDma;
extern LOGICAL VfVerifyPerformanceCounter;
extern LOGICAL ViDoubleBufferDma;
extern LOGICAL ViProtectBuffers;
extern LOGICAL ViInjectDmaFailures;
extern LOGICAL ViSuperDebug;
extern LOGICAL ViSufficientlyBootedForPcControl;
extern LOGICAL ViSufficientlyBootedForDmaFailure;
extern ULONG ViMaxMapRegistersPerAdapter;
extern ULONG ViAllocationsFailedDeliberately;
extern LARGE_INTEGER ViRequiredTimeSinceBoot;
extern CHAR ViDmaVerifierTag[];
extern BOOLEAN ViPenalties[];
extern struct _HAL_VERIFIER_LOCKED_LIST ViAdapterList;
extern struct _VF_TIMER_INFORMATION * ViTimerInformation;
extern struct _DMA_OPERATIONS ViDmaOperations;
extern struct _DMA_OPERATIONS ViLegacyDmaOperations;
/////////////////////////////////////////////////////////////////////
////////////////////////////////// Hal verifier structure definitions
/////////////////////////////////////////////////////////////////////
typedef struct _TIMER_TICK {
ULONG Processor;
ULONG Reserved;
LARGE_INTEGER TimeStampCounter;
LARGE_INTEGER PerformanceCounter;
LARGE_INTEGER TimerTick;
} TIMER_TICK, *PTIMER_TICK;
typedef struct _VF_TIMER_INFORMATION {
KDPC RefreshDpc;
KTIMER RefreshTimer;
TIMER64 LastPerformanceCounter;
TIMER64 UpperBound;
TIMER64 LastTickCount;
TIMER64 LastKdStartTime;
LARGE_INTEGER PerformanceFrequency;
ULONG CountsPerTick;
ULONG CurrentCounter;
TIMER_TICK SavedTicks[MAX_COUNTERS];
} VF_TIMER_INFORMATION, *PVF_TIMER_INFORMATION;
typedef struct _HAL_VERIFIER_LOCKED_LIST {
LIST_ENTRY ListEntry;
KSPIN_LOCK SpinLock;
} HAL_VERIFIER_LOCKED_LIST, *PHAL_VERIFIER_LOCKED_LIST;
typedef struct _HAL_VERIFIER_BUFFER {
USHORT PrePadBytes;
USHORT PostPadBytes;
ULONG RealLength;
ULONG AdvertisedLength;
PVOID RealStartAddress;
PVOID AdvertisedStartAddress;
PHYSICAL_ADDRESS RealLogicalStartAddress;
PVOID AllocatorAddress;
LIST_ENTRY ListEntry;
} HAL_VERIFIER_BUFFER, *PHAL_VERIFIER_BUFFER;
typedef struct _MAP_REGISTER {
PVOID MappedToSa;
ULONG BytesMapped;
ULONG Flags;
PVOID MapRegisterStart;
} MAP_REGISTER, *PMAP_REGISTER;
typedef struct _MAP_REGISTER_FILE {
ULONG Signature;
LIST_ENTRY ListEntry;
BOOLEAN ContiguousMap;
BOOLEAN ScatterGather;
ULONG NumberOfMapRegisters;
ULONG NumberOfRegistersMapped;
PVOID MapRegisterBaseFromHal;
PMDL MapRegisterMdl;
PVOID MapRegisterBuffer;
KSPIN_LOCK AllocationLock;
MAP_REGISTER MapRegisters[1];
// Rest of the map registers go here
//
} MAP_REGISTER_FILE, *PMAP_REGISTER_FILE;
typedef struct _VF_WAIT_CONTEXT_BLOCK {
PVOID RealContext;
PVOID RealCallback;
PMDL RealMdl;
PVOID RealStartVa;
ULONG RealLength;
ULONG NumberOfMapRegisters;
struct _ADAPTER_INFORMATION * AdapterInformation;
PSCATTER_GATHER_LIST ScatterGatherList;
LIST_ENTRY ListEntry;
PMAP_REGISTER_FILE MapRegisterFile;
} VF_WAIT_CONTEXT_BLOCK, *PVF_WAIT_CONTEXT_BLOCK;
//
// Store a list of the real dma operations used by an adapter ...
// when the driver allocates the adapter, we're going to replace all of its
// dma operations with ours
//
typedef struct _ADAPTER_INFORMATION {
LIST_ENTRY ListEntry;
PDMA_ADAPTER DmaAdapter;
PDEVICE_OBJECT DeviceObject;
BOOLEAN DeferredRemove;
BOOLEAN UseContiguousBuffers;
BOOLEAN UseDmaChannel;
BOOLEAN Inactive;
PVOID CallingAddress;
PDMA_OPERATIONS RealDmaOperations;
HAL_VERIFIER_LOCKED_LIST ScatterGatherLists;
HAL_VERIFIER_LOCKED_LIST CommonBuffers;
HAL_VERIFIER_LOCKED_LIST MapRegisterFiles;
ULONG MaximumMapRegisters;
ULONG AllocatedMapRegisters;
LONG ActiveMapRegisters;
ULONG AllocatedScatterGatherLists;
LONG ActiveScatterGatherLists;
ULONG AllocatedCommonBuffers;
ULONG FreedCommonBuffers;
ULONG AllocatedAdapterChannels; // Must be 1 or less ! //
ULONG FreedAdapterChannels;
ULONG MappedTransferWithoutFlushing;
DEVICE_DESCRIPTION DeviceDescription;
ULONG AdapterChannelMapRegisters;
VF_WAIT_CONTEXT_BLOCK AdapterChannelContextBlock;
PVOID *ContiguousBuffers; // array of contiguous 3-page buffers to be used for double-buffering
ULONG SuccessfulContiguousAllocations; // how many times we allocated contiguous space
ULONG FailedContiguousAllocations; // how many times we failed to allocate contiguous space
KSPIN_LOCK AllocationLock; // lock for our allocator routines
ULONG AllocationStorage[MAX_CONTIGUOUS_MAP_REGISTERS / (sizeof(ULONG) * 8)]; // bitmask for allocator routines
RTL_BITMAP AllocationMap;
ULONG ContiguousMapRegisters; // allocated among ContiguousBufers
ULONG NonContiguousMapRegisters; // allocated from non-Paged Pool
} ADAPTER_INFORMATION, *PADAPTER_INFORMATION;
/////////////////////////////////////////////////////////////////////
////////////////////////////////// Hal verifier function declarations
/////////////////////////////////////////////////////////////////////
//==========================
// Declare our dma apis here
// if NO_LEGACY_DRIVERS *is*
// enabled
// =========================
#if defined(NO_LEGACY_DRIVERS)
VOID
VfPutDmaAdapter(
struct _DMA_ADAPTER * DmaAdapter
);
PVOID
VfAllocateCommonBuffer(
IN struct _DMA_ADAPTER * DmaAdapter,
IN ULONG Length,
OUT PPHYSICAL_ADDRESS LogicalAddress,
IN BOOLEAN CacheEnabled
);
VOID
VfFreeCommonBuffer(
IN struct _DMA_ADAPTER * DmaAdapter,
IN ULONG Length,
IN PHYSICAL_ADDRESS LogicalAddress,
IN PVOID VirtualAddress,
IN BOOLEAN CacheEnabled
);
NTSTATUS
VfAllocateAdapterChannel(
IN struct _DMA_ADAPTER * DmaAdapter,
IN PDEVICE_OBJECT DeviceObject,
IN ULONG NumberOfMapRegisters,
IN PDRIVER_CONTROL ExecutionRoutine,
IN PVOID Context
);
PHYSICAL_ADDRESS
VfMapTransfer(
IN struct _DMA_ADAPTER * DmaAdapter,
IN PMDL Mdl,
IN PVOID MapRegisterBase,
IN PVOID CurrentVa,
IN OUT PULONG Length,
IN BOOLEAN WriteToDevice
);
BOOLEAN
VfFlushAdapterBuffers(
IN struct _DMA_ADAPTER * DmaAdapter,
IN PMDL Mdl,
IN PVOID MapRegisterBase,
IN PVOID CurrentVa,
IN ULONG Length,
IN BOOLEAN WriteToDevice
);
VOID
VfFreeAdapterChannel(
IN struct _DMA_ADAPTER * DmaAdapter
);
VOID
VfFreeMapRegisters(
IN struct _DMA_ADAPTER * DmaAdapter,
PVOID MapRegisterBase,
ULONG NumberOfMapRegisters
);
ULONG
VfGetDmaAlignment(
IN struct _DMA_ADAPTER * DmaAdapter
);
ULONG
VfReadDmaCounter(
IN struct _DMA_ADAPTER * DmaAdapter
);
NTSTATUS
VfGetScatterGatherList (
IN struct _DMA_ADAPTER * DmaAdapter,
IN PDEVICE_OBJECT DeviceObject,
IN PMDL Mdl,
IN PVOID CurrentVa,
IN ULONG Length,
IN PVOID ExecutionRoutine,
IN PVOID Context,
IN BOOLEAN WriteToDevice
);
VOID
VfPutScatterGatherList(
IN struct _DMA_ADAPTER * DmaAdapter,
IN struct _SCATTER_GATHER_LIST * ScatterGather,
IN BOOLEAN WriteToDevice
);
#endif
// =====================
// New verified dma apis
// =====================
NTSTATUS
VfCalculateScatterGatherListSize(
IN PDMA_ADAPTER DmaAdapter,
IN OPTIONAL PMDL Mdl,
IN PVOID CurrentVa,
IN ULONG Length,
OUT PULONG ScatterGatherListSize,
OUT OPTIONAL PULONG pNumberOfMapRegisters
);
NTSTATUS
VfBuildScatterGatherList(
IN PDMA_ADAPTER DmaAdapter,
IN PDEVICE_OBJECT DeviceObject,
IN PMDL Mdl,
IN PVOID CurrentVa,
IN ULONG Length,
IN PDRIVER_LIST_CONTROL ExecutionRoutine,
IN PVOID Context,
IN BOOLEAN WriteToDevice,
IN PVOID ScatterGatherBuffer,
IN ULONG ScatterGatherLength
);
NTSTATUS
VfBuildMdlFromScatterGatherList(
IN PDMA_ADAPTER DmaAdapter,
IN PSCATTER_GATHER_LIST ScatterGather,
IN PMDL OriginalMdl,
OUT PMDL *TargetMdl
);
IO_ALLOCATION_ACTION
VfAdapterCallback(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp,
IN PVOID MapRegisterBase,
IN PVOID Context
);
VOID
VfScatterGatherCallback(
IN struct _DEVICE_OBJECT *DeviceObject,
IN struct _IRP *Irp,
IN struct _SCATTER_GATHER_LIST * ScatterGather,
IN PVOID Context
);
// ==============================
// Hal verifier internal routines
// ==============================
PADAPTER_INFORMATION
ViHookDmaAdapter(
IN PDMA_ADAPTER DmaAdapter,
IN PDEVICE_DESCRIPTION DeviceDescription,
IN ULONG NumberOfMapRegisters
);
VOID
ViReleaseDmaAdapter(
IN PADAPTER_INFORMATION AdapterInformation
);
PADAPTER_INFORMATION
ViGetAdapterInformation(
IN PDMA_ADAPTER DmaAdapter
);
PVOID
ViGetRealDmaOperation(
IN PDMA_ADAPTER DmaAdapter,
IN ULONG AdapterInformationOffset
);
LARGE_INTEGER
ViRdtsc(
VOID
);
VOID
VfInitializeTimerInformation(
VOID
);
VOID
ViRefreshCallback(
IN PKDPC Dpc,
IN PVOID DeferredContext,
IN PVOID SystemArgument1,
IN PVOID SystemArgument2
);
LOGICAL
VfInjectDmaFailure (
VOID
);
// =================================================
// Hal verfier special routines to track allocations
// =================================================
PVOID
ViSpecialAllocateCommonBuffer(
IN PALLOCATE_COMMON_BUFFER AllocateCommonBuffer,
IN PADAPTER_INFORMATION AdapterInformation,
IN PVOID CallingAddress,
IN ULONG Length,
IN OUT PPHYSICAL_ADDRESS LogicalAddress,
IN LOGICAL CacheEnabled
);
LOGICAL
ViSpecialFreeCommonBuffer(
IN PFREE_COMMON_BUFFER FreeCommonBuffer,
IN PADAPTER_INFORMATION AdapterInformation,
IN PVOID CommonBuffer,
LOGICAL CacheEnabled
);
// ===================================================
// Hal verfier special routines to do double buffering
// ===================================================
PMAP_REGISTER_FILE
ViAllocateMapRegisterFile(
IN PADAPTER_INFORMATION AdapterInformation,
IN ULONG NumberOfMapRegisters
);
LOGICAL
ViFreeMapRegisterFile(
IN PADAPTER_INFORMATION AdapterInformation,
IN PMAP_REGISTER_FILE MapRegisterFile
);
ULONG
ViMapDoubleBuffer(
IN PMAP_REGISTER_FILE MapRegisterFile,
IN OUT PMDL Mdl,
IN OUT PVOID CurrentVa,
IN ULONG Length,
IN BOOLEAN WriteToDevice
);
LOGICAL
ViFlushDoubleBuffer(
IN PMAP_REGISTER_FILE MapRegisterFile,
IN PMDL Mdl,
IN PVOID CurrentVa,
IN ULONG Length,
IN BOOLEAN WriteToDevice
);
LOGICAL
ViAllocateMapRegistersFromFile(
IN PMAP_REGISTER_FILE MapRegisterFile,
IN PVOID CurrentSa,
IN ULONG Length,
IN BOOLEAN WriteToDevice,
OUT PULONG MapRegisterNumber
);
LOGICAL
ViFreeMapRegistersToFile(
IN PMAP_REGISTER_FILE MapRegisterFile,
IN PVOID CurrentSa,
IN ULONG Length
);
PMAP_REGISTER
ViFindMappedRegisterInFile(
IN PMAP_REGISTER_FILE MapRegisterFile,
IN PVOID CurrentSa,
OUT PULONG MapRegisterNumber OPTIONAL
);
LOGICAL
ViSwap(IN OUT PVOID * MapRegisterBase,
IN OUT PMDL * Mdl,
IN OUT PVOID * CurrentVa
);
VOID
ViCheckAdapterBuffers(
IN PADAPTER_INFORMATION AdapterInformation
);
VOID
ViTagBuffer(
IN PVOID AdvertisedBuffer,
IN ULONG AdvertisedLength,
IN USHORT WhereToTag
);
VOID
ViCheckTag(
IN PVOID AdvertisedBuffer,
IN ULONG AdvertisedLength,
IN BOOLEAN RemoveTag,
IN USHORT WhereToCheck
);
VOID
ViInitializePadding(
IN PVOID RealBufferStart,
IN ULONG RealBufferLength,
IN PVOID AdvertisedBufferStart, OPTIONAL
IN ULONG AdvertisedBufferLength OPTIONAL
);
VOID
ViCheckPadding(
IN PVOID RealBufferStart,
IN ULONG RealBufferLength,
IN PVOID AdvertisedBufferStart, OPTIONAL
IN ULONG AdvertisedBufferLength OPTIONAL
);
PULONG_PTR
ViHasBufferBeenTouched(
IN PVOID Address,
IN ULONG_PTR Length,
IN UCHAR ExpectedFillChar
);
VOID
VfAssert(
IN LOGICAL Condition,
IN ULONG Code,
IN OUT PULONG Enable
);
VOID
ViMapTransferHelper(
IN PMDL Mdl,
IN PVOID CurrentVa,
IN ULONG TransferLength,
IN PULONG PageFrame,
IN OUT PULONG Length
);
VOID
ViCommonBufferCalculatePadding(
IN ULONG Length,
OUT PULONG PrePadding,
OUT PULONG PostPadding
);
VOID
ViAllocateContiguousMemory (
IN OUT PADAPTER_INFORMATION AdapterInformation
);
PVOID
ViAllocateFromContiguousMemory (
IN OUT PADAPTER_INFORMATION AdapterInformation,
IN ULONG HintIndex
);
LOGICAL
ViFreeToContiguousMemory (
IN OUT PADAPTER_INFORMATION AdapterInformation,
IN PVOID Address,
IN ULONG HintIndex
);
LOGICAL
VfIsPCIBus (
IN PDEVICE_OBJECT PhysicalDeviceObject
);
PDEVICE_OBJECT
VfGetPDO (
IN PDEVICE_OBJECT DeviceObject
);
/////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////// Hal verifier macros
/////////////////////////////////////////////////////////////////////
//
// This is a kind of long macro but it lets us decide what to
// do on certain kinds of errors. For instance, if we know
// we are going to hit something once, we might set it to
// HVC_WARN. Or if we know we will hit it 1000 times, but don't
// want to take the code out completely (especially if we're doing
// it on the fly), we can set it to HVC_IGNORE
//
#define VF_ASSERT(condition, code, message) \
{ \
static ULONG enable = (ULONG) -1; \
if (enable == (ULONG) -1) \
enable = ViPenalties[code]; \
if (!(condition) && enable) \
{ \
DbgPrint("* * * * * * * * HAL Verifier Detected Violation * * * * * * * *\n");\
DbgPrint("* *\n"); \
DbgPrint("* * VF: "); \
DbgPrint message; \
DbgPrint("\n"); \
DbgPrint("* *\n"); \
DbgPrint("* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n");\
\
VfAssert(condition, code, &enable); \
} \
}
//
// Old favorite:
//
// Control macro (used like a for loop) which iterates over all entries in
// a standard doubly linked list. Head is the list head and the entries
// are of type Type. A member called ListEntry is assumed to be the
// LIST_ENTRY structure linking the entries together. Current contains a
// pointer to each entry in turn.
//
#define FOR_ALL_IN_LIST(Type, Head, Current) \
for((Current) = CONTAINING_RECORD((Head)->Flink, Type, ListEntry); \
(Head) != &(Current)->ListEntry; \
(Current) = CONTAINING_RECORD((Current)->ListEntry.Flink, \
Type, \
ListEntry) \
)
#ifndef MIN
#define MIN(a,b) ( ( (ULONG) (a)<(ULONG) (b))?(a):(b) )
#endif
#define NOP
#define VF_INITIALIZE_LOCKED_LIST(LockedList) \
KeInitializeSpinLock(&(LockedList)->SpinLock); \
InitializeListHead(&(LockedList)->ListEntry);
#define VF_LOCK_LIST(ListToLock, OldIrql) \
KeAcquireSpinLock(&(ListToLock)->SpinLock, &OldIrql)
#define VF_UNLOCK_LIST(ListToUnlock, OldIrql) \
KeReleaseSpinLock(&(ListToUnlock)->SpinLock, OldIrql)
#define VF_IS_LOCKED_LIST_EMPTY(LockedList) \
IsListEmpty( &(LockedList)->ListEntry )
#define VF_ADD_TO_LOCKED_LIST(LockedList, AddMe) \
ExInterlockedInsertHeadList( \
&(LockedList)->ListEntry, \
&(AddMe)->ListEntry, \
&(LockedList)->SpinLock )
#define VF_REMOVE_FROM_LOCKED_LIST(LockedList, RemoveMe) \
{ \
KIRQL OldIrql; \
VF_LOCK_LIST((LockedList), OldIrql); \
RemoveEntryList(&(RemoveMe)->ListEntry); \
VF_UNLOCK_LIST((LockedList), OldIrql); \
}
#define VF_REMOVE_FROM_LOCKED_LIST_DONT_LOCK(LockedList, RemoveMe) \
RemoveEntryList(&(RemoveMe)->ListEntry);
//
// This is a bit of a hack so that reference counting for adapters will work.
// If the device uses a dma channel, the HAL wants to keep it around.
// There is a bit of funky logic that goes on to determine whether
// a device uses an adapter channel so I've included it here, free of
// charge.
//
#define VF_DOES_DEVICE_USE_DMA_CHANNEL(deviceDescription) \
( \
( (deviceDescription)->InterfaceType == Isa && \
(deviceDescription)->DmaChannel < 8 ) || \
! (deviceDescription)->Master )
#define VF_DOES_DEVICE_REQUIRE_CONTIGUOUS_BUFFERS(deviceDescription) \
( !(deviceDescription)->Master || ! (deviceDescription)->ScatterGather )
#define DMA_OFFSET(DmaOperationsField) \
FIELD_OFFSET(DMA_OPERATIONS, DmaOperationsField)
#define DMA_INDEX(DmaOperations, Offset) \
(PVOID) \
*( (PVOID *) \
( ( (PUCHAR) (DmaOperations) ) + \
(Offset) ) )
#define SIGN_MAP_REGISTER_FILE(MapRegisterFile) \
(MapRegisterFile)->Signature = MRF_SIGNATURE;
#define VALIDATE_MAP_REGISTER_FILE_SIGNATURE(MapRegisterFile ) \
((MapRegisterFile) && (MapRegisterFile)->Signature == MRF_SIGNATURE )
//
// System dependent way to get the caller's address
//
#if defined(_X86_)
#define GET_CALLING_ADDRESS(CallingAddress) \
{ \
PVOID callersCaller; \
RtlGetCallersAddress(&CallingAddress, &callersCaller); \
}
#else // ! defined(_X86_) //
#define GET_CALLING_ADDRESS(CallingAddress) \
CallingAddress = (PVOID)_ReturnAddress();
#endif // ! defined(_X86_)
//
// From a map register file, map register number and the corresponding system address,
// return the corresponding mapped address in system space.
//
#define MAP_REGISTER_SYSTEM_ADDRESS(MapRegisterFile, DriverCurrentSa, MapRegisterNumber) \
(PUCHAR) (MapRegisterFile)->MapRegisterBuffer + \
( (MapRegisterNumber) << PAGE_SHIFT ) + \
BYTE_OFFSET(DriverCurrentSa)
//
// From a map register file, map register number and the corresponding system address,
// return the corresponding mapped address as an index into the map register file's
// MDL (i.e virtual address).
//
#define MAP_REGISTER_VIRTUAL_ADDRESS(MapRegisterFile, DriverCurrentSa, MapRegisterNumber) \
(PUCHAR) MmGetMdlVirtualAddress((MapRegisterFile)->MapRegisterMdl) + \
( (MapRegisterNumber) << PAGE_SHIFT ) + \
BYTE_OFFSET(DriverCurrentSa)
/////////////////////////////////////////////////////////////////////
//////////////////////////// Hal verifier inline function definitions
/////////////////////////////////////////////////////////////////////
//
// Since so many people don't raise the irql when they put the dma adapter,
// just warn them.
//
__inline
VOID
VF_ASSERT_SPECIAL_IRQL(IN KIRQL Irql)
{
KIRQL currentIrql = KeGetCurrentIrql();
VF_ASSERT(
currentIrql == Irql,
HV_BAD_IRQL_JUST_WARN,
("**** Bad IRQL -- needed %x, got %x ****",
(ULONG) Irql, (ULONG) currentIrql)
);
} // VF_ASSERT_IRQL //
__inline
VOID
VF_ASSERT_IRQL(IN KIRQL Irql)
{
KIRQL currentIrql = KeGetCurrentIrql();
VF_ASSERT(
currentIrql == Irql,
HV_BAD_IRQL,
("**** Bad IRQL -- needed %x, got %x ****",
(ULONG) Irql, (ULONG) currentIrql)
);
} // VF_ASSERT_IRQL //
__inline
VOID
VF_ASSERT_MAX_IRQL(IN KIRQL MaxIrql)
{
KIRQL currentIrql = KeGetCurrentIrql();
VF_ASSERT(
currentIrql <= MaxIrql,
HV_BAD_IRQL,
("**** Bad IRQL -- needed %x or less, got %x ****",
(ULONG) MaxIrql, (ULONG) currentIrql)
);
}
// =========================================
// Inlined functions to help with accounting
// =========================================
__inline
VOID
ADD_MAP_REGISTERS(
IN PADAPTER_INFORMATION AdapterInformation,
IN ULONG NumberOfMapRegisters,
IN BOOLEAN ScatterGather
)
{
ULONG activeMapRegisters =
InterlockedExchangeAdd(
&AdapterInformation->ActiveMapRegisters,
NumberOfMapRegisters
) + NumberOfMapRegisters;
InterlockedExchangeAdd((PLONG)(&AdapterInformation->AllocatedMapRegisters),
NumberOfMapRegisters);
VF_ASSERT(
NumberOfMapRegisters <= AdapterInformation->MaximumMapRegisters,
HV_TOO_MANY_MAP_REGISTERS,
( "Allocating too many map registers at a time: %x (max %x)",
NumberOfMapRegisters,
AdapterInformation->MaximumMapRegisters )
);
if (! ScatterGather ) {
VF_ASSERT(
activeMapRegisters <= AdapterInformation->MaximumMapRegisters,
HV_OUT_OF_MAP_REGISTERS,
( "Allocated too many map registers : %x (max %x)",
activeMapRegisters,
AdapterInformation->MaximumMapRegisters )
);
}
} // ADD_MAP_REGISTERS //
__inline
VOID
SUBTRACT_MAP_REGISTERS(
IN PADAPTER_INFORMATION AdapterInformation,
IN ULONG NumberOfMapRegisters
)
{
LONG activeMapRegisters =
InterlockedExchangeAdd(
&AdapterInformation->ActiveMapRegisters,
-((LONG) NumberOfMapRegisters)
) - NumberOfMapRegisters;
VF_ASSERT(
activeMapRegisters >= 0,
HV_FREED_TOO_MANY_MAP_REGISTERS,
( "Freed too many map registers: %x",
activeMapRegisters )
);
InterlockedExchange((PLONG)(&AdapterInformation->MappedTransferWithoutFlushing),
0);
} // SUBTRACT_MAP_REGISTERS //
__inline
VOID
INCREMENT_COMMON_BUFFERS(
IN PADAPTER_INFORMATION AdapterInformation
)
{
InterlockedIncrement((PLONG)(&AdapterInformation->AllocatedCommonBuffers) );
} // INCREMENT_COMMON_BUFFERS //
__inline
VOID
DECREMENT_COMMON_BUFFERS(
IN PADAPTER_INFORMATION AdapterInformation
)
{
ULONG commonBuffersFreed =
(ULONG) InterlockedIncrement(
(PLONG)(&AdapterInformation->FreedCommonBuffers) );
VF_ASSERT(
commonBuffersFreed <= AdapterInformation->AllocatedCommonBuffers,
HV_FREED_TOO_MANY_COMMON_BUFFERS,
("Freed too many common buffers")
);
} // DECREMENT_COMMON_BUFFERS //
__inline
VOID
INCREASE_MAPPED_TRANSFER_BYTE_COUNT(
IN PADAPTER_INFORMATION AdapterInformation,
IN ULONG Length
)
{
ULONG mappedTransferCount;
ULONG maxMappedTransfer;
maxMappedTransfer = AdapterInformation->ActiveMapRegisters << PAGE_SHIFT;
mappedTransferCount =
InterlockedExchangeAdd(
(PLONG)(&AdapterInformation->MappedTransferWithoutFlushing),
(LONG) Length
) + Length;
VF_ASSERT(
mappedTransferCount <= maxMappedTransfer,
HV_DID_NOT_FLUSH_ADAPTER_BUFFERS,
("Driver did not flush adapter buffers -- bytes mapped: %x (%x max)",
mappedTransferCount,
maxMappedTransfer
));
} // INCREASE_MAPPED_TRANSFER_BYTE_COUNT //
__inline
VOID
DECREASE_MAPPED_TRANSFER_BYTE_COUNT(
IN PADAPTER_INFORMATION AdapterInformation,
IN ULONG Length
)
{
UNREFERENCED_PARAMETER (Length);
InterlockedExchange(
(PLONG)(&AdapterInformation->MappedTransferWithoutFlushing),
0);
} // DECREASE_MAPPED_TRANSFER_BYTE_COUNT //
__inline
VOID
INCREMENT_ADAPTER_CHANNELS(
IN PADAPTER_INFORMATION AdapterInformation
)
{
ULONG allocatedAdapterChannels = (ULONG)
InterlockedIncrement(
(PLONG)(&AdapterInformation->AllocatedAdapterChannels) );
VF_ASSERT(
allocatedAdapterChannels ==
AdapterInformation->FreedAdapterChannels + 1,
HV_TOO_MANY_ADAPTER_CHANNELS,
( "Driver has allocated too many simultaneous adapter channels"
));
} // INCREMENT_ADAPTER_CHANNELS //
__inline
VOID
DECREMENT_ADAPTER_CHANNELS(
IN PADAPTER_INFORMATION AdapterInformation
)
{
ULONG adapterChannelsFreed = (ULONG)
InterlockedIncrement( (PLONG)(&AdapterInformation->FreedAdapterChannels) );
VF_ASSERT(
adapterChannelsFreed == AdapterInformation->AllocatedAdapterChannels,
HV_FREED_TOO_MANY_ADAPTER_CHANNELS,
( "Driver has freed too many simultaneous adapter channels"
));
} // DECREMENT_ADAPTER_CHANNELS //
_inline
VOID
INCREMENT_SCATTER_GATHER_LISTS(
IN PADAPTER_INFORMATION AdapterInformation
)
{
InterlockedIncrement( (PLONG)(&AdapterInformation->AllocatedScatterGatherLists) );
InterlockedIncrement( &AdapterInformation->ActiveScatterGatherLists);
} // INCREMENT_SCATTER_GATHER_LISTS //
__inline
VOID
DECREMENT_SCATTER_GATHER_LISTS (
IN PADAPTER_INFORMATION AdapterInformation
)
{
LONG activeScatterGatherLists = InterlockedDecrement(
&AdapterInformation->ActiveScatterGatherLists );
VF_ASSERT(
activeScatterGatherLists >= 0,
HV_FREED_TOO_MANY_SCATTER_GATHER_LISTS,
( "Driver has freed too many scatter gather lists %x allocated, %x freed",
AdapterInformation->AllocatedScatterGatherLists,
AdapterInformation->AllocatedScatterGatherLists -
activeScatterGatherLists)
);
} // DECREMENT_SCATTER_GATHER_LISTS //
__inline
VOID
VERIFY_BUFFER_LOCKED(
IN PMDL Mdl
)
{
VF_ASSERT(
MmAreMdlPagesLocked(Mdl),
HV_DMA_BUFFER_NOT_LOCKED,
( "DMA Pages Not Locked! MDL %p for DMA not locked", Mdl)
);
} // VERIFY_BUFFER_LOCKED //
__inline
PHAL_VERIFIER_BUFFER
VF_FIND_BUFFER (
IN PHAL_VERIFIER_LOCKED_LIST LockedList,
IN PVOID AdvertisedStartAddress
)
{
PHAL_VERIFIER_BUFFER verifierBuffer;
KIRQL OldIrql;
VF_LOCK_LIST(LockedList, OldIrql);
FOR_ALL_IN_LIST(HAL_VERIFIER_BUFFER,
&LockedList->ListEntry,
verifierBuffer ) {
if ((PUCHAR) verifierBuffer->RealStartAddress +
verifierBuffer->PrePadBytes == AdvertisedStartAddress) {
VF_UNLOCK_LIST(LockedList, OldIrql);
return verifierBuffer;
}
}
VF_UNLOCK_LIST(LockedList, OldIrql);
return NULL;
} // VF_FIND_BUFFER //
__inline
PADAPTER_INFORMATION
VF_FIND_DEVICE_INFORMATION(
IN PDEVICE_OBJECT DeviceObject
)
{
PADAPTER_INFORMATION adapterInformation;
KIRQL OldIrql;
VF_LOCK_LIST(&ViAdapterList, OldIrql);
FOR_ALL_IN_LIST(ADAPTER_INFORMATION, &ViAdapterList.ListEntry, adapterInformation) {
if (adapterInformation->DeviceObject == DeviceObject) {
VF_UNLOCK_LIST(&ViAdapterList, OldIrql);
return adapterInformation;
}
}
VF_UNLOCK_LIST(&ViAdapterList, OldIrql);
return NULL;
} // VF_FIND_DEVICE_INFORMATION //
__inline
PADAPTER_INFORMATION
VF_FIND_INACTIVE_ADAPTER(
IN PDEVICE_OBJECT DeviceObject
)
{
PADAPTER_INFORMATION adapterInformation;
KIRQL OldIrql;
VF_LOCK_LIST(&ViAdapterList, OldIrql);
FOR_ALL_IN_LIST(ADAPTER_INFORMATION, &ViAdapterList.ListEntry, adapterInformation) {
if (adapterInformation->DeviceObject == DeviceObject &&
(adapterInformation->Inactive == TRUE ||
adapterInformation->DeferredRemove == TRUE)) {
VF_UNLOCK_LIST(&ViAdapterList, OldIrql);
return adapterInformation;
}
}
VF_UNLOCK_LIST(&ViAdapterList, OldIrql);
return NULL;
} // VF_FIND_INACTIVE_ADAPTER //
__inline
VOID
VF_MARK_FOR_DEFERRED_REMOVE(
IN PDEVICE_OBJECT DeviceObject
)
{
PADAPTER_INFORMATION adapterInformation;
KIRQL OldIrql;
VF_LOCK_LIST(&ViAdapterList, OldIrql);
FOR_ALL_IN_LIST(ADAPTER_INFORMATION, &ViAdapterList.ListEntry, adapterInformation) {
if (adapterInformation->DeviceObject == DeviceObject) {
adapterInformation->DeferredRemove = TRUE;
}
}
VF_UNLOCK_LIST(&ViAdapterList, OldIrql);
return ;
} // VF_MARK_FOR_DEFERRED_REMOVE //
__inline
VOID
VF_ASSERT_MAP_REGISTERS_CAN_BE_FREED(
IN PADAPTER_INFORMATION AdapterInformation,
IN PMAP_REGISTER_FILE MapRegisterFile
)
{
UNREFERENCED_PARAMETER (AdapterInformation);
VF_ASSERT(
MapRegisterFile->NumberOfRegistersMapped,
HV_CANNOT_FREE_MAP_REGISTERS,
( "Cannot free map registers -- %x registers still mapped",
MapRegisterFile->NumberOfMapRegisters)
);
} // VF_ASSERT_MAP_REGISTERS_CAN_BE_FREED
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