reactos/include/ndk/extypes.h

/*++ NDK Version: 0098

Copyright (c) Alex Ionescu.  All rights reserved.

Header Name:

    extypes.h

Abstract:

    Type definitions for the Executive.

Author:

    Alex Ionescu (alexi@tinykrnl.org) - Updated - 27-Feb-2006

--*/

#ifndef _EXTYPES_H
#define _EXTYPES_H

//
// Dependencies
//
#include <umtypes.h>
#include <cfg.h>
#if !defined(NTOS_MODE_USER)
#include <ntimage.h>
#endif
#include <cmtypes.h>
#include <ketypes.h>
#include <potypes.h>
#include <lpctypes.h>
#ifdef NTOS_MODE_USER
#include <obtypes.h>
#endif

//
// GCC compatibility
//
#if defined(__GNUC__)
#define __ALIGNED(n)    __attribute__((aligned (n)))
#elif defined(_MSC_VER)
#define __ALIGNED(n)    __declspec(align(n))
#else
#error __ALIGNED not defined for your compiler!
#endif

//
// Rtl Atom
//
typedef USHORT RTL_ATOM, *PRTL_ATOM;

#ifndef NTOS_MODE_USER

//
// Kernel Exported Object Types
//
extern POBJECT_TYPE NTSYSAPI ExDesktopObjectType;
extern POBJECT_TYPE NTSYSAPI ExWindowStationObjectType;
extern POBJECT_TYPE NTSYSAPI ExIoCompletionType;
extern POBJECT_TYPE NTSYSAPI ExMutantObjectType;
extern POBJECT_TYPE NTSYSAPI ExTimerType;

//
// Exported NT Build Number
//
extern ULONG NtBuildNumber;

//
// Invalid Handle Value Constant
//
#define INVALID_HANDLE_VALUE                (HANDLE)-1

#endif

//
// Increments
//
#define MUTANT_INCREMENT                    1

//
// Callback Object Access Mask
//
#define CALLBACK_ALL_ACCESS                 (STANDARD_RIGHTS_REQUIRED|SYNCHRONIZE|0x0001)
#define CALLBACK_EXECUTE                    (STANDARD_RIGHTS_EXECUTE|SYNCHRONIZE|0x0001)
#define CALLBACK_WRITE                      (STANDARD_RIGHTS_WRITE|SYNCHRONIZE|0x0001)
#define CALLBACK_READ                       (STANDARD_RIGHTS_READ|SYNCHRONIZE|0x0001)

//
// Event Object Access Masks
//
#ifdef NTOS_MODE_USER
#define EVENT_QUERY_STATE                   0x0001

//
// Semaphore Object Access Masks
//
#define SEMAPHORE_QUERY_STATE               0x0001
#else

//
// Mutant Object Access Masks
//
#define MUTANT_QUERY_STATE                  0x0001
#define MUTANT_ALL_ACCESS                   (STANDARD_RIGHTS_REQUIRED | \
                                             SYNCHRONIZE | \
                                             MUTANT_QUERY_STATE)

#define TIMER_QUERY_STATE                   0x0001
#define TIMER_MODIFY_STATE                  0x0002
#define TIMER_ALL_ACCESS                    (STANDARD_RIGHTS_REQUIRED | \
                                             SYNCHRONIZE | \
                                             TIMER_QUERY_STATE | \
                                             TIMER_MODIFY_STATE)
#endif

//
// Event Pair Access Masks
//
#define EVENT_PAIR_ALL_ACCESS               0x1F0000L

//
// Profile Object Access Masks
//
#define PROFILE_CONTROL                     0x0001
#define PROFILE_ALL_ACCESS                  (STANDARD_RIGHTS_REQUIRED | PROFILE_CONTROL)

//
// Maximum Parameters for NtRaiseHardError
//
#define MAXIMUM_HARDERROR_PARAMETERS        4

//
// Pushlock bits
//
#define EX_PUSH_LOCK_LOCK_V                 ((ULONG_PTR)0x0)
#define EX_PUSH_LOCK_LOCK                   ((ULONG_PTR)0x1)
#define EX_PUSH_LOCK_WAITING                ((ULONG_PTR)0x2)
#define EX_PUSH_LOCK_WAKING                 ((ULONG_PTR)0x4)
#define EX_PUSH_LOCK_MULTIPLE_SHARED        ((ULONG_PTR)0x8)
#define EX_PUSH_LOCK_SHARE_INC              ((ULONG_PTR)0x10)
#define EX_PUSH_LOCK_PTR_BITS               ((ULONG_PTR)0xf)

//
// Pushlock Wait Block Flags
//
#define EX_PUSH_LOCK_FLAGS_EXCLUSIVE        1
#define EX_PUSH_LOCK_FLAGS_WAIT_V           1
#define EX_PUSH_LOCK_FLAGS_WAIT             2

//
// Resource (ERESOURCE) Flags
//
#define ResourceHasDisabledPriorityBoost    0x08

//
// Shutdown types for NtShutdownSystem
//
typedef enum _SHUTDOWN_ACTION
{
    ShutdownNoReboot,
    ShutdownReboot,
    ShutdownPowerOff
} SHUTDOWN_ACTION;

//
// Responses for NtRaiseHardError
//
typedef enum _HARDERROR_RESPONSE_OPTION
{
    OptionAbortRetryIgnore,
    OptionOk,
    OptionOkCancel,
    OptionRetryCancel,
    OptionYesNo,
    OptionYesNoCancel,
    OptionShutdownSystem
} HARDERROR_RESPONSE_OPTION, *PHARDERROR_RESPONSE_OPTION;

typedef enum _HARDERROR_RESPONSE
{
    ResponseReturnToCaller,
    ResponseNotHandled,
    ResponseAbort,
    ResponseCancel,
    ResponseIgnore,
    ResponseNo,
    ResponseOk,
    ResponseRetry,
    ResponseYes,
    ResponseTryAgain,
    ResponseContinue
} HARDERROR_RESPONSE, *PHARDERROR_RESPONSE;

//
//  System Information Classes for NtQuerySystemInformation
//
typedef enum _SYSTEM_INFORMATION_CLASS
{
    SystemBasicInformation,
    SystemProcessorInformation,
    SystemPerformanceInformation,
    SystemTimeOfDayInformation,
    SystemPathInformation, /// Obsolete: Use KUSER_SHARED_DATA
    SystemProcessInformation,
    SystemCallCountInformation,
    SystemDeviceInformation,
    SystemProcessorPerformanceInformation,
    SystemFlagsInformation,
    SystemCallTimeInformation,
    SystemModuleInformation,
    SystemLocksInformation,
    SystemStackTraceInformation,
    SystemPagedPoolInformation,
    SystemNonPagedPoolInformation,
    SystemHandleInformation,
    SystemObjectInformation,
    SystemPageFileInformation,
    SystemVdmInstemulInformation,
    SystemVdmBopInformation,
    SystemFileCacheInformation,
    SystemPoolTagInformation,
    SystemInterruptInformation,
    SystemDpcBehaviorInformation,
    SystemFullMemoryInformation,
    SystemLoadGdiDriverInformation,
    SystemUnloadGdiDriverInformation,
    SystemTimeAdjustmentInformation,
    SystemSummaryMemoryInformation,
    SystemMirrorMemoryInformation,
    SystemPerformanceTraceInformation,
    SystemObsolete0,
    SystemExceptionInformation,
    SystemCrashDumpStateInformation,
    SystemKernelDebuggerInformation,
    SystemContextSwitchInformation,
    SystemRegistryQuotaInformation,
    SystemExtendServiceTableInformation,
    SystemPrioritySeperation,
    SystemPlugPlayBusInformation,
    SystemDockInformation,
    SystemPowerInformationNative,
    SystemProcessorSpeedInformation,
    SystemCurrentTimeZoneInformation,
    SystemLookasideInformation,
    SystemTimeSlipNotification,
    SystemSessionCreate,
    SystemSessionDetach,
    SystemSessionInformation,
    SystemRangeStartInformation,
    SystemVerifierInformation,
    SystemAddVerifier,
    SystemSessionProcessesInformation,
    SystemLoadGdiDriverInSystemSpaceInformation,
    SystemNumaProcessorMap,
    SystemPrefetcherInformation,
    SystemExtendedProcessInformation,
    SystemRecommendedSharedDataAlignment,
    SystemComPlusPackage,
    SystemNumaAvailableMemory,
    SystemProcessorPowerInformation,
    SystemEmulationBasicInformation,
    SystemEmulationProcessorInformation,
    SystemExtendedHanfleInformation,
    SystemLostDelayedWriteInformation,
    SystemBigPoolInformation,
    SystemSessionPoolTagInformation,
    SystemSessionMappedViewInformation,
    SystemHotpatchInformation,
    SystemObjectSecurityMode,
    SystemWatchDogTimerHandler,
    SystemWatchDogTimerInformation,
    SystemLogicalProcessorInformation,
    SystemWow64SharedInformationObsolete,
    SystemRegisterFirmwareTableInformationHandler,
    SystemFirmwareTableInformation,
    SystemModuleInformationEx,
    SystemVerifierTriageInformation,
    SystemSuperfetchInformation,
    SystemMemoryListInformation,
    SystemFileCacheInformationEx,
    SystemThreadPriorityClientIdInformation,
    SystemProcessorIdleCycleTimeInformation,
    SystemVerifierCancellationInformation,
    SystemProcessorPowerInformationEx,
    SystemRefTraceInformation,
    SystemSpecialPoolInformation,
    SystemProcessIdInformation,
    SystemErrorPortInformation,
    SystemBootEnvironmentInformation,
    SystemHypervisorInformation,
    SystemVerifierInformationEx,
    SystemTimeZoneInformation,
    SystemImageFileExecutionOptionsInformation,
    SystemCoverageInformation,
    SystemPrefetchPathInformation,
    SystemVerifierFaultsInformation,
    MaxSystemInfoClass,
} SYSTEM_INFORMATION_CLASS;

//
//  System Information Classes for NtQueryMutant
//
typedef enum _MUTANT_INFORMATION_CLASS
{
    MutantBasicInformation,
    MutantOwnerInformation
} MUTANT_INFORMATION_CLASS;

//
//  System Information Classes for NtQueryAtom
//
typedef enum _ATOM_INFORMATION_CLASS
{
    AtomBasicInformation,
    AtomTableInformation,
} ATOM_INFORMATION_CLASS;

//
//  System Information Classes for NtQueryTimer
//
typedef enum _TIMER_INFORMATION_CLASS
{
    TimerBasicInformation
} TIMER_INFORMATION_CLASS;

//
//  System Information Classes for NtQuerySemaphore
//
typedef enum _SEMAPHORE_INFORMATION_CLASS
{
    SemaphoreBasicInformation
} SEMAPHORE_INFORMATION_CLASS;

//
//  System Information Classes for NtQueryEvent
//
typedef enum _EVENT_INFORMATION_CLASS
{
    EventBasicInformation
} EVENT_INFORMATION_CLASS;

#ifdef NTOS_MODE_USER

//
// Firmware Table Actions for SystemFirmwareTableInformation
//
typedef enum _SYSTEM_FIRMWARE_TABLE_ACTION
{
    SystemFirmwareTable_Enumerate = 0,
    SystemFirmwareTable_Get = 1,
} SYSTEM_FIRMWARE_TABLE_ACTION, *PSYSTEM_FIRMWARE_TABLE_ACTION;

//
// Firmware Handler Callback
//
struct _SYSTEM_FIRMWARE_TABLE_INFORMATION;
typedef
NTSTATUS
(__cdecl *PFNFTH)(
    IN struct _SYSTEM_FIRMWARE_TABLE_INFORMATION *FirmwareTableInformation
);

#else

//
// Handle Enumeration Callback
//
struct _HANDLE_TABLE_ENTRY;
typedef BOOLEAN
(NTAPI *PEX_ENUM_HANDLE_CALLBACK)(
    IN struct _HANDLE_TABLE_ENTRY *HandleTableEntry,
    IN HANDLE Handle,
    IN PVOID Context
);

//
// Executive Work Queue Structures
//
typedef struct _EX_QUEUE_WORKER_INFO
{
    ULONG QueueDisabled:1;
    ULONG MakeThreadsAsNecessary:1;
    ULONG WaitMode:1;
    ULONG WorkerCount:29;
} EX_QUEUE_WORKER_INFO, *PEX_QUEUE_WORKER_INFO;

typedef struct _EX_WORK_QUEUE
{
    KQUEUE WorkerQueue;
    LONG DynamicThreadCount;
    ULONG WorkItemsProcessed;
    ULONG WorkItemsProcessedLastPass;
    ULONG QueueDepthLastPass;
    EX_QUEUE_WORKER_INFO Info;
} EX_WORK_QUEUE, *PEX_WORK_QUEUE;

//
// Executive Fast Reference Structure
//
typedef struct _EX_FAST_REF
{
    union
    {
        PVOID Object;
        ULONG_PTR RefCnt:3;
        ULONG_PTR Value;
    };
} EX_FAST_REF, *PEX_FAST_REF;

//
// Executive Cache-Aware Rundown Reference Descriptor
//
typedef struct _EX_RUNDOWN_REF_CACHE_AWARE
{
    PEX_RUNDOWN_REF RunRefs;
    PVOID PoolToFree;
    ULONG RunRefSize;
    ULONG Number;
} EX_RUNDOWN_REF_CACHE_AWARE;

//
// Executive Rundown Wait Block
//
typedef struct _EX_RUNDOWN_WAIT_BLOCK
{
    ULONG_PTR Count;
    KEVENT WakeEvent;
} EX_RUNDOWN_WAIT_BLOCK, *PEX_RUNDOWN_WAIT_BLOCK;

//
// Executive Pushlock
//
#undef EX_PUSH_LOCK
#undef PEX_PUSH_LOCK
typedef struct _EX_PUSH_LOCK
{
    union
    {
        struct
        {
            ULONG_PTR Locked:1;
            ULONG_PTR Waiting:1;
            ULONG_PTR Waking:1;
            ULONG_PTR MultipleShared:1;
            ULONG_PTR Shared:sizeof (ULONG_PTR) * 8 - 4;
        };
        ULONG_PTR Value;
        PVOID Ptr;
    };
} EX_PUSH_LOCK, *PEX_PUSH_LOCK;

//
// Executive Pushlock Wait Block
//
typedef __ALIGNED(16) struct _EX_PUSH_LOCK_WAIT_BLOCK
{
    union
    {
        KGATE WakeGate;
        KEVENT WakeEvent;
    };
    struct _EX_PUSH_LOCK_WAIT_BLOCK *Next;
    struct _EX_PUSH_LOCK_WAIT_BLOCK *Last;
    struct _EX_PUSH_LOCK_WAIT_BLOCK *Previous;
    LONG ShareCount;
    LONG Flags;
#if DBG
    BOOLEAN Signaled;
    EX_PUSH_LOCK NewValue;
    EX_PUSH_LOCK OldValue;
    PEX_PUSH_LOCK PushLock;
#endif
} EX_PUSH_LOCK_WAIT_BLOCK, *PEX_PUSH_LOCK_WAIT_BLOCK;

//
// Callback Object
//
typedef struct _CALLBACK_OBJECT
{
    ULONG Signature;
    KSPIN_LOCK Lock;
    LIST_ENTRY RegisteredCallbacks;
    BOOLEAN AllowMultipleCallbacks;
    UCHAR reserved[3];
} CALLBACK_OBJECT;

//
// Callback Handle
//
typedef struct _CALLBACK_REGISTRATION
{
    LIST_ENTRY Link;
    PCALLBACK_OBJECT CallbackObject;
    PCALLBACK_FUNCTION CallbackFunction;
    PVOID CallbackContext;
    ULONG Busy;
    BOOLEAN UnregisterWaiting;
} CALLBACK_REGISTRATION, *PCALLBACK_REGISTRATION;

//
// Internal Callback Object
//
typedef struct _EX_CALLBACK_ROUTINE_BLOCK
{
    EX_RUNDOWN_REF RundownProtect;
    PEX_CALLBACK_FUNCTION Function;
    PVOID Context;
} EX_CALLBACK_ROUTINE_BLOCK, *PEX_CALLBACK_ROUTINE_BLOCK;

//
// Internal Callback Handle
//
typedef struct _EX_CALLBACK
{
    EX_FAST_REF RoutineBlock;
} EX_CALLBACK, *PEX_CALLBACK;

//
// Profile Object
//
typedef struct _EPROFILE
{
    PEPROCESS Process;
    PVOID RangeBase;
    SIZE_T RangeSize;
    PVOID Buffer;
    ULONG BufferSize;
    ULONG BucketSize;
    PKPROFILE ProfileObject;
    PVOID LockedBufferAddress;
    PMDL Mdl;
    ULONG_PTR Segment;
    KPROFILE_SOURCE ProfileSource;
    KAFFINITY Affinity;
} EPROFILE, *PEPROFILE;

//
// Handle Table Structures
//
typedef struct _HANDLE_TRACE_DB_ENTRY
{
    CLIENT_ID ClientId;
    HANDLE Handle;
    ULONG Type;
    PVOID StackTrace[16];
} HANDLE_TRACE_DB_ENTRY, *PHANDLE_TRACE_DB_ENTRY;

typedef struct _HANDLE_TRACE_DEBUG_INFO
{
    LONG RefCount;
    ULONG TableSize;
    ULONG BitMaskFlags;
    FAST_MUTEX CloseCompatcionLock;
    ULONG CurrentStackIndex;
    HANDLE_TRACE_DB_ENTRY TraceDb[1];
} HANDLE_TRACE_DEBUG_INFO, *PHANDLE_TRACE_DEBUG_INFO;

typedef struct _HANDLE_TABLE_ENTRY_INFO
{
    ULONG AuditMask;
} HANDLE_TABLE_ENTRY_INFO, *PHANDLE_TABLE_ENTRY_INFO;

typedef struct _HANDLE_TABLE_ENTRY
{
    union
    {
        PVOID Object;
        ULONG_PTR ObAttributes;
        PHANDLE_TABLE_ENTRY_INFO InfoTable;
        ULONG_PTR Value;
    };
    union
    {
        ULONG GrantedAccess;
        struct
        {
            USHORT GrantedAccessIndex;
            USHORT CreatorBackTraceIndex;
        };
        LONG NextFreeTableEntry;
    };
} HANDLE_TABLE_ENTRY, *PHANDLE_TABLE_ENTRY;

typedef struct _HANDLE_TABLE
{
#if (NTDDI_VERSION >= NTDDI_WINXP)
    ULONG TableCode;
#else
    PHANDLE_TABLE_ENTRY **Table;
#endif
    PEPROCESS QuotaProcess;
    PVOID UniqueProcessId;
#if (NTDDI_VERSION >= NTDDI_WINXP)
    EX_PUSH_LOCK HandleTableLock[4];
    LIST_ENTRY HandleTableList;
    EX_PUSH_LOCK HandleContentionEvent;
#else
    ERESOURCE HandleLock;
    LIST_ENTRY HandleTableList;
    KEVENT HandleContentionEvent;
#endif
    PHANDLE_TRACE_DEBUG_INFO DebugInfo;
    LONG ExtraInfoPages;
#if (NTDDI_VERSION >= NTDDI_LONGHORN)
    union
    {
        ULONG Flags;
        UCHAR StrictFIFO:1;
    };
    LONG FirstFreeHandle;
    PHANDLE_TABLE_ENTRY LastFreeHandleEntry;
    LONG HandleCount;
    ULONG NextHandleNeedingPool;
#else
    ULONG FirstFree;
    ULONG LastFree;
    ULONG NextHandleNeedingPool;
    LONG HandleCount;
    union
    {
        ULONG Flags;
        UCHAR StrictFIFO:1;
    };
#endif
} HANDLE_TABLE, *PHANDLE_TABLE;

#endif

//
// Hard Error LPC Message
//
typedef struct _HARDERROR_MSG
{
    PORT_MESSAGE h;
    NTSTATUS Status;
    LARGE_INTEGER ErrorTime;
    ULONG ValidResponseOptions;
    ULONG Response;
    ULONG NumberOfParameters;
    ULONG UnicodeStringParameterMask;
    ULONG Parameters[MAXIMUM_HARDERROR_PARAMETERS];
} HARDERROR_MSG, *PHARDERROR_MSG;

//
// Information Structures for NtQueryMutant
//
typedef struct _MUTANT_BASIC_INFORMATION
{
    LONG CurrentCount;
    BOOLEAN OwnedByCaller;
    BOOLEAN AbandonedState;
} MUTANT_BASIC_INFORMATION, *PMUTANT_BASIC_INFORMATION;

typedef struct _MUTANT_OWNER_INFORMATION
{
    CLIENT_ID ClientId;
} MUTANT_OWNER_INFORMATION, *PMUTANT_OWNER_INFORMATION;

//
// Information Structures for NtQueryAtom
//
typedef struct _ATOM_BASIC_INFORMATION
{
    USHORT UsageCount;
    USHORT Flags;
    USHORT NameLength;
    WCHAR Name[1];
} ATOM_BASIC_INFORMATION, *PATOM_BASIC_INFORMATION;

typedef struct _ATOM_TABLE_INFORMATION
{
    ULONG NumberOfAtoms;
    USHORT Atoms[1];
} ATOM_TABLE_INFORMATION, *PATOM_TABLE_INFORMATION;

//
// Information Structures for NtQueryTimer
//
typedef struct _TIMER_BASIC_INFORMATION
{
    LARGE_INTEGER TimeRemaining;
    BOOLEAN SignalState;
} TIMER_BASIC_INFORMATION, *PTIMER_BASIC_INFORMATION;

//
// Information Structures for NtQuerySemaphore
//
typedef struct _SEMAPHORE_BASIC_INFORMATION
{
    LONG CurrentCount;
    LONG MaximumCount;
} SEMAPHORE_BASIC_INFORMATION, *PSEMAPHORE_BASIC_INFORMATION;

//
// Information Structures for NtQueryEvent
//
typedef struct _EVENT_BASIC_INFORMATION
{
    EVENT_TYPE EventType;
    LONG EventState;
} EVENT_BASIC_INFORMATION, *PEVENT_BASIC_INFORMATION;

//
// Information Structures for NtQuerySystemInformation
//
typedef struct _SYSTEM_BASIC_INFORMATION
{
    ULONG Reserved;
    ULONG TimerResolution;
    ULONG PageSize;
    ULONG NumberOfPhysicalPages;
    ULONG LowestPhysicalPageNumber;
    ULONG HighestPhysicalPageNumber;
    ULONG AllocationGranularity;
    ULONG_PTR MinimumUserModeAddress;
    ULONG_PTR MaximumUserModeAddress;
    ULONG_PTR ActiveProcessorsAffinityMask;
    CCHAR NumberOfProcessors;
} SYSTEM_BASIC_INFORMATION, *PSYSTEM_BASIC_INFORMATION;

// Class 1
typedef struct _SYSTEM_PROCESSOR_INFORMATION
{
    USHORT ProcessorArchitecture;
    USHORT ProcessorLevel;
    USHORT ProcessorRevision;
    USHORT Reserved;
    ULONG ProcessorFeatureBits;
} SYSTEM_PROCESSOR_INFORMATION, *PSYSTEM_PROCESSOR_INFORMATION;

// Class 2
typedef struct _SYSTEM_PERFORMANCE_INFORMATION
{
    LARGE_INTEGER IdleProcessTime;
    LARGE_INTEGER IoReadTransferCount;
    LARGE_INTEGER IoWriteTransferCount;
    LARGE_INTEGER IoOtherTransferCount;
    ULONG IoReadOperationCount;
    ULONG IoWriteOperationCount;
    ULONG IoOtherOperationCount;
    ULONG AvailablePages;
    ULONG CommittedPages;
    ULONG CommitLimit;
    ULONG PeakCommitment;
    ULONG PageFaultCount;
    ULONG CopyOnWriteCount;
    ULONG TransitionCount;
    ULONG CacheTransitionCount;
    ULONG DemandZeroCount;
    ULONG PageReadCount;
    ULONG PageReadIoCount;
    ULONG CacheReadCount;
    ULONG CacheIoCount;
    ULONG DirtyPagesWriteCount;
    ULONG DirtyWriteIoCount;
    ULONG MappedPagesWriteCount;
    ULONG MappedWriteIoCount;
    ULONG PagedPoolPages;
    ULONG NonPagedPoolPages;
    ULONG PagedPoolAllocs;
    ULONG PagedPoolFrees;
    ULONG NonPagedPoolAllocs;
    ULONG NonPagedPoolFrees;
    ULONG FreeSystemPtes;
    ULONG ResidentSystemCodePage;
    ULONG TotalSystemDriverPages;
    ULONG TotalSystemCodePages;
    ULONG NonPagedPoolLookasideHits;
    ULONG PagedPoolLookasideHits;
    ULONG Spare3Count;
    ULONG ResidentSystemCachePage;
    ULONG ResidentPagedPoolPage;
    ULONG ResidentSystemDriverPage;
    ULONG CcFastReadNoWait;
    ULONG CcFastReadWait;
    ULONG CcFastReadResourceMiss;
    ULONG CcFastReadNotPossible;
    ULONG CcFastMdlReadNoWait;
    ULONG CcFastMdlReadWait;
    ULONG CcFastMdlReadResourceMiss;
    ULONG CcFastMdlReadNotPossible;
    ULONG CcMapDataNoWait;
    ULONG CcMapDataWait;
    ULONG CcMapDataNoWaitMiss;
    ULONG CcMapDataWaitMiss;
    ULONG CcPinMappedDataCount;
    ULONG CcPinReadNoWait;
    ULONG CcPinReadWait;
    ULONG CcPinReadNoWaitMiss;
    ULONG CcPinReadWaitMiss;
    ULONG CcCopyReadNoWait;
    ULONG CcCopyReadWait;
    ULONG CcCopyReadNoWaitMiss;
    ULONG CcCopyReadWaitMiss;
    ULONG CcMdlReadNoWait;
    ULONG CcMdlReadWait;
    ULONG CcMdlReadNoWaitMiss;
    ULONG CcMdlReadWaitMiss;
    ULONG CcReadAheadIos;
    ULONG CcLazyWriteIos;
    ULONG CcLazyWritePages;
    ULONG CcDataFlushes;
    ULONG CcDataPages;
    ULONG ContextSwitches;
    ULONG FirstLevelTbFills;
    ULONG SecondLevelTbFills;
    ULONG SystemCalls;
} SYSTEM_PERFORMANCE_INFORMATION, *PSYSTEM_PERFORMANCE_INFORMATION;

// Class 3
typedef struct _SYSTEM_TIMEOFDAY_INFORMATION
{
    LARGE_INTEGER BootTime;
    LARGE_INTEGER CurrentTime;
    LARGE_INTEGER TimeZoneBias;
    ULONG TimeZoneId;
    ULONG Reserved;
#if (NTDDI_VERSION >= NTDDI_WIN2K)
    ULONGLONG BootTimeBias;
    ULONGLONG SleepTimeBias;
#endif
} SYSTEM_TIMEOFDAY_INFORMATION, *PSYSTEM_TIMEOFDAY_INFORMATION;

// Class 4
// This class is obsolete, please use KUSER_SHARED_DATA instead

// Class 5
typedef struct _SYSTEM_THREAD_INFORMATION
{
    LARGE_INTEGER KernelTime;
    LARGE_INTEGER UserTime;
    LARGE_INTEGER CreateTime;
    ULONG WaitTime;
    PVOID StartAddress;
    CLIENT_ID ClientId;
    KPRIORITY Priority;
    LONG BasePriority;
    ULONG ContextSwitches;
    ULONG ThreadState;
    ULONG WaitReason;
} SYSTEM_THREAD_INFORMATION, *PSYSTEM_THREAD_INFORMATION;

typedef struct _SYSTEM_PROCESS_INFORMATION
{
    ULONG NextEntryOffset;
    ULONG NumberOfThreads;
    LARGE_INTEGER SpareLi1;
    LARGE_INTEGER SpareLi2;
    LARGE_INTEGER SpareLi3;
    LARGE_INTEGER CreateTime;
    LARGE_INTEGER UserTime;
    LARGE_INTEGER KernelTime;
    UNICODE_STRING ImageName;
    KPRIORITY BasePriority;
    HANDLE UniqueProcessId;
    HANDLE InheritedFromUniqueProcessId;
    ULONG HandleCount;
    ULONG SessionId;
    ULONG_PTR PageDirectoryBase;

    //
    // This part corresponds to VM_COUNTERS_EX.
    // NOTE: *NOT* THE SAME AS VM_COUNTERS!
    //
    SIZE_T PeakVirtualSize;
    ULONG VirtualSize;
    SIZE_T PageFaultCount;
    SIZE_T PeakWorkingSetSize;
    SIZE_T WorkingSetSize;
    SIZE_T QuotaPeakPagedPoolUsage;
    SIZE_T QuotaPagedPoolUsage;
    SIZE_T QuotaPeakNonPagedPoolUsage;
    SIZE_T QuotaNonPagedPoolUsage;
    SIZE_T PagefileUsage;
    SIZE_T PeakPagefileUsage;
    SIZE_T PrivatePageCount;

    //
    // This part corresponds to IO_COUNTERS
    //
    LARGE_INTEGER ReadOperationCount;
    LARGE_INTEGER WriteOperationCount;
    LARGE_INTEGER OtherOperationCount;
    LARGE_INTEGER ReadTransferCount;
    LARGE_INTEGER WriteTransferCount;
    LARGE_INTEGER OtherTransferCount;

    //SYSTEM_THREAD_INFORMATION TH[1];
} SYSTEM_PROCESS_INFORMATION, *PSYSTEM_PROCESS_INFORMATION;

// Class 6
typedef struct _SYSTEM_CALL_COUNT_INFORMATION
{
    ULONG Length;
    ULONG NumberOfTables;
} SYSTEM_CALL_COUNT_INFORMATION, *PSYSTEM_CALL_COUNT_INFORMATION;

// Class 7
typedef struct _SYSTEM_DEVICE_INFORMATION
{
    ULONG NumberOfDisks;
    ULONG NumberOfFloppies;
    ULONG NumberOfCdRoms;
    ULONG NumberOfTapes;
    ULONG NumberOfSerialPorts;
    ULONG NumberOfParallelPorts;
} SYSTEM_DEVICE_INFORMATION, *PSYSTEM_DEVICE_INFORMATION;

// Class 8
typedef struct _SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION
{
    LARGE_INTEGER IdleTime;
    LARGE_INTEGER KernelTime;
    LARGE_INTEGER UserTime;
    LARGE_INTEGER DpcTime;
    LARGE_INTEGER InterruptTime;
    ULONG InterruptCount;
} SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION, *PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION;

// Class 9
typedef struct _SYSTEM_FLAGS_INFORMATION
{
    ULONG Flags;
} SYSTEM_FLAGS_INFORMATION, *PSYSTEM_FLAGS_INFORMATION;

// Class 10
typedef struct _SYSTEM_CALL_TIME_INFORMATION
{
    ULONG Length;
    ULONG TotalCalls;
    LARGE_INTEGER TimeOfCalls[1];
} SYSTEM_CALL_TIME_INFORMATION, *PSYSTEM_CALL_TIME_INFORMATION;

// Class 11 - See RTL_PROCESS_MODULES

// Class 12 - See RTL_PROCESS_LOCKS

// Class 13 - See RTL_PROCESS_BACKTRACES

// Class 14 - 15
typedef struct _SYSTEM_POOL_ENTRY
{
    BOOLEAN Allocated;
    BOOLEAN Spare0;
    USHORT AllocatorBackTraceIndex;
    ULONG Size;
    union
    {
        UCHAR Tag[4];
        ULONG TagUlong;
        PVOID ProcessChargedQuota;
    };
} SYSTEM_POOL_ENTRY, *PSYSTEM_POOL_ENTRY;

typedef struct _SYSTEM_POOL_INFORMATION
{
    ULONG TotalSize;
    PVOID FirstEntry;
    USHORT EntryOverhead;
    BOOLEAN PoolTagPresent;
    BOOLEAN Spare0;
    ULONG NumberOfEntries;
    SYSTEM_POOL_ENTRY Entries[1];
} SYSTEM_POOL_INFORMATION, *PSYSTEM_POOL_INFORMATION;

// Class 16
typedef struct _SYSTEM_HANDLE_TABLE_ENTRY_INFO
{
    USHORT UniqueProcessId;
    USHORT CreatorBackTraceIndex;
    UCHAR ObjectTypeIndex;
    UCHAR HandleAttributes;
    USHORT HandleValue;
    PVOID Object;
    ULONG GrantedAccess;
} SYSTEM_HANDLE_TABLE_ENTRY_INFO, *PSYSTEM_HANDLE_TABLE_ENTRY_INFO;

typedef struct _SYSTEM_HANDLE_INFORMATION
{
    ULONG NumberOfHandles;
    SYSTEM_HANDLE_TABLE_ENTRY_INFO Handles[1];
} SYSTEM_HANDLE_INFORMATION, *PSYSTEM_HANDLE_INFORMATION;

// Class 17
typedef struct _SYSTEM_OBJECTTYPE_INFORMATION
{
    ULONG NextEntryOffset;
    ULONG NumberOfObjects;
    ULONG NumberOfHandles;
    ULONG TypeIndex;
    ULONG InvalidAttributes;
    GENERIC_MAPPING GenericMapping;
    ULONG ValidAccessMask;
    ULONG PoolType;
    BOOLEAN SecurityRequired;
    BOOLEAN WaitableObject;
    UNICODE_STRING TypeName;
} SYSTEM_OBJECTTYPE_INFORMATION, *PSYSTEM_OBJECTTYPE_INFORMATION;

typedef struct _SYSTEM_OBJECT_INFORMATION
{
    ULONG NextEntryOffset;
    PVOID Object;
    HANDLE CreatorUniqueProcess;
    USHORT CreatorBackTraceIndex;
    USHORT Flags;
    LONG PointerCount;
    LONG HandleCount;
    ULONG PagedPoolCharge;
    ULONG NonPagedPoolCharge;
    HANDLE ExclusiveProcessId;
    PVOID SecurityDescriptor;
    OBJECT_NAME_INFORMATION NameInfo;
} SYSTEM_OBJECT_INFORMATION, *PSYSTEM_OBJECT_INFORMATION;

// Class 18
typedef struct _SYSTEM_PAGEFILE_INFORMATION
{
    ULONG NextEntryOffset;
    ULONG TotalSize;
    ULONG TotalInUse;
    ULONG PeakUsage;
    UNICODE_STRING PageFileName;
} SYSTEM_PAGEFILE_INFORMATION, *PSYSTEM_PAGEFILE_INFORMATION;

// Class 19
typedef struct _SYSTEM_VDM_INSTEMUL_INFO
{
    ULONG SegmentNotPresent;
    ULONG VdmOpcode0F;
    ULONG OpcodeESPrefix;
    ULONG OpcodeCSPrefix;
    ULONG OpcodeSSPrefix;
    ULONG OpcodeDSPrefix;
    ULONG OpcodeFSPrefix;
    ULONG OpcodeGSPrefix;
    ULONG OpcodeOPER32Prefix;
    ULONG OpcodeADDR32Prefix;
    ULONG OpcodeINSB;
    ULONG OpcodeINSW;
    ULONG OpcodeOUTSB;
    ULONG OpcodeOUTSW;
    ULONG OpcodePUSHF;
    ULONG OpcodePOPF;
    ULONG OpcodeINTnn;
    ULONG OpcodeINTO;
    ULONG OpcodeIRET;
    ULONG OpcodeINBimm;
    ULONG OpcodeINWimm;
    ULONG OpcodeOUTBimm;
    ULONG OpcodeOUTWimm ;
    ULONG OpcodeINB;
    ULONG OpcodeINW;
    ULONG OpcodeOUTB;
    ULONG OpcodeOUTW;
    ULONG OpcodeLOCKPrefix;
    ULONG OpcodeREPNEPrefix;
    ULONG OpcodeREPPrefix;
    ULONG OpcodeHLT;
    ULONG OpcodeCLI;
    ULONG OpcodeSTI;
    ULONG BopCount;
} SYSTEM_VDM_INSTEMUL_INFO, *PSYSTEM_VDM_INSTEMUL_INFO;

// Class 20 - ULONG VDMBOPINFO

// Class 21
typedef struct _SYSTEM_FILECACHE_INFORMATION
{
    ULONG CurrentSize;
    ULONG PeakSize;
    ULONG PageFaultCount;
    ULONG MinimumWorkingSet;
    ULONG MaximumWorkingSet;
    ULONG CurrentSizeIncludingTransitionInPages;
    ULONG PeakSizeIncludingTransitionInPages;
    ULONG TransitionRePurposeCount;
    ULONG Flags;
} SYSTEM_FILECACHE_INFORMATION, *PSYSTEM_FILECACHE_INFORMATION;

// Class 22
typedef struct _SYSTEM_POOLTAG
{
    union
    {
        UCHAR Tag[4];
        ULONG TagUlong;
    };
    ULONG PagedAllocs;
    ULONG PagedFrees;
    ULONG PagedUsed;
    ULONG NonPagedAllocs;
    ULONG NonPagedFrees;
    ULONG NonPagedUsed;
} SYSTEM_POOLTAG, *PSYSTEM_POOLTAG;
typedef struct _SYSTEM_POOLTAG_INFORMATION
{
    ULONG Count;
    SYSTEM_POOLTAG TagInfo[1];
} SYSTEM_POOLTAG_INFORMATION, *PSYSTEM_POOLTAG_INFORMATION;

// Class 23
typedef struct _SYSTEM_INTERRUPT_INFORMATION
{
    ULONG ContextSwitches;
    ULONG DpcCount;
    ULONG DpcRate;
    ULONG TimeIncrement;
    ULONG DpcBypassCount;
    ULONG ApcBypassCount;
} SYSTEM_INTERRUPT_INFORMATION, *PSYSTEM_INTERRUPT_INFORMATION;

// Class 24
typedef struct _SYSTEM_DPC_BEHAVIOR_INFORMATION
{
    ULONG Spare;
    ULONG DpcQueueDepth;
    ULONG MinimumDpcRate;
    ULONG AdjustDpcThreshold;
    ULONG IdealDpcRate;
} SYSTEM_DPC_BEHAVIOR_INFORMATION, *PSYSTEM_DPC_BEHAVIOR_INFORMATION;

// Class 25
typedef struct _SYSTEM_MEMORY_INFO
{
    PUCHAR StringOffset;
    USHORT ValidCount;
    USHORT TransitionCount;
    USHORT ModifiedCount;
    USHORT PageTableCount;
} SYSTEM_MEMORY_INFO, *PSYSTEM_MEMORY_INFO;

typedef struct _SYSTEM_MEMORY_INFORMATION
{
    ULONG InfoSize;
    ULONG StringStart;
    SYSTEM_MEMORY_INFO Memory[1];
} SYSTEM_MEMORY_INFORMATION, *PSYSTEM_MEMORY_INFORMATION;

// Class 26
typedef struct _SYSTEM_GDI_DRIVER_INFORMATION
{
    UNICODE_STRING DriverName;
    PVOID ImageAddress;
    PVOID SectionPointer;
    PVOID EntryPoint;
    PIMAGE_EXPORT_DIRECTORY ExportSectionPointer;
    ULONG ImageLength;
} SYSTEM_GDI_DRIVER_INFORMATION, *PSYSTEM_GDI_DRIVER_INFORMATION;

// Class 27
// Not an actually class, simply a PVOID to the ImageAddress

// Class 28
typedef struct _SYSTEM_QUERY_TIME_ADJUST_INFORMATION
{
    ULONG TimeAdjustment;
    ULONG TimeIncrement;
    BOOLEAN Enable;
} SYSTEM_QUERY_TIME_ADJUST_INFORMATION, *PSYSTEM_QUERY_TIME_ADJUST_INFORMATION;

typedef struct _SYSTEM_SET_TIME_ADJUST_INFORMATION
{
    ULONG TimeAdjustment;
    BOOLEAN Enable;
} SYSTEM_SET_TIME_ADJUST_INFORMATION, *PSYSTEM_SET_TIME_ADJUST_INFORMATION;

// Class 29 - Same as 25

// FIXME: Class 30

// Class 31
typedef struct _SYSTEM_REF_TRACE_INFORMATION
{
   UCHAR TraceEnable;
   UCHAR TracePermanent;
   UNICODE_STRING TraceProcessName;
   UNICODE_STRING TracePoolTags;
} SYSTEM_REF_TRACE_INFORMATION, *PSYSTEM_REF_TRACE_INFORMATION;

// Class 32 - OBSOLETE

// Class 33
typedef struct _SYSTEM_EXCEPTION_INFORMATION
{
    ULONG AlignmentFixupCount;
    ULONG ExceptionDispatchCount;
    ULONG FloatingEmulationCount;
    ULONG ByteWordEmulationCount;
} SYSTEM_EXCEPTION_INFORMATION, *PSYSTEM_EXCEPTION_INFORMATION;

// Class 34
typedef struct _SYSTEM_CRASH_STATE_INFORMATION
{
    ULONG ValidCrashDump;
} SYSTEM_CRASH_STATE_INFORMATION, *PSYSTEM_CRASH_STATE_INFORMATION;

// Class 35
typedef struct _SYSTEM_KERNEL_DEBUGGER_INFORMATION
{
    BOOLEAN KernelDebuggerEnabled;
    BOOLEAN KernelDebuggerNotPresent;
} SYSTEM_KERNEL_DEBUGGER_INFORMATION, *PSYSTEM_KERNEL_DEBUGGER_INFORMATION;

// Class 36
typedef struct _SYSTEM_CONTEXT_SWITCH_INFORMATION
{
    ULONG ContextSwitches;
    ULONG FindAny;
    ULONG FindLast;
    ULONG FindIdeal;
    ULONG IdleAny;
    ULONG IdleCurrent;
    ULONG IdleLast;
    ULONG IdleIdeal;
    ULONG PreemptAny;
    ULONG PreemptCurrent;
    ULONG PreemptLast;
    ULONG SwitchToIdle;
} SYSTEM_CONTEXT_SWITCH_INFORMATION, *PSYSTEM_CONTEXT_SWITCH_INFORMATION;

// Class 37
typedef struct _SYSTEM_REGISTRY_QUOTA_INFORMATION
{
    ULONG RegistryQuotaAllowed;
    ULONG RegistryQuotaUsed;
    ULONG PagedPoolSize;
} SYSTEM_REGISTRY_QUOTA_INFORMATION, *PSYSTEM_REGISTRY_QUOTA_INFORMATION;

// Class 38
// Not a structure, simply send the UNICODE_STRING

// Class 39
// Not a structure, simply send a ULONG containing the new separation

// Class 40
typedef struct _SYSTEM_PLUGPLAY_BUS_INFORMATION
{
    ULONG BusCount;
    PLUGPLAY_BUS_INSTANCE BusInstance[1];
} SYSTEM_PLUGPLAY_BUS_INFORMATION, *PSYSTEM_PLUGPLAY_BUS_INFORMATION;

// Class 41
typedef struct _SYSTEM_DOCK_INFORMATION
{
    SYSTEM_DOCK_STATE DockState;
    INTERFACE_TYPE DeviceBusType;
    ULONG DeviceBusNumber;
    ULONG SlotNumber;
} SYSTEM_DOCK_INFORMATION, *PSYSTEM_DOCK_INFORMATION;

// Class 42
typedef struct _SYSTEM_POWER_INFORMATION_NATIVE
{
    BOOLEAN SystemSuspendSupported;
    BOOLEAN SystemHibernateSupported;
    BOOLEAN ResumeTimerSupportsSuspend;
    BOOLEAN ResumeTimerSupportsHibernate;
    BOOLEAN LidSupported;
    BOOLEAN TurboSettingSupported;
    BOOLEAN TurboMode;
    BOOLEAN SystemAcOrDc;
    BOOLEAN PowerDownDisabled;
    LARGE_INTEGER SpindownDrives;
} SYSTEM_POWER_INFORMATION_NATIVE, *PSYSTEM_POWER_INFORMATION_NATIVE;

// Class 43
typedef struct _SYSTEM_LEGACY_DRIVER_INFORMATION
{
    PNP_VETO_TYPE VetoType;
    UNICODE_STRING VetoDriver;
    // CHAR Buffer[0];
} SYSTEM_LEGACY_DRIVER_INFORMATION, *PSYSTEM_LEGACY_DRIVER_INFORMATION;

// Class 44
//typedef struct _TIME_ZONE_INFORMATION RTL_TIME_ZONE_INFORMATION;

// Class 45
typedef struct _SYSTEM_LOOKASIDE_INFORMATION
{
    USHORT CurrentDepth;
    USHORT MaximumDepth;
    ULONG TotalAllocates;
    ULONG AllocateMisses;
    ULONG TotalFrees;
    ULONG FreeMisses;
    ULONG Type;
    ULONG Tag;
    ULONG Size;
} SYSTEM_LOOKASIDE_INFORMATION, *PSYSTEM_LOOKASIDE_INFORMATION;

// Class 46
// Not a structure. Only a HANDLE for the SlipEvent;

// Class 47
// Not a structure. Only a ULONG for the SessionId;

// Class 48
// Not a structure. Only a ULONG for the SessionId;

// FIXME: Class 49

// Class 50
// Not a structure. Only a ULONG_PTR for the SystemRangeStart

// Class 51
typedef struct _SYSTEM_VERIFIER_INFORMATION
{
   ULONG NextEntryOffset;
   ULONG Level;
   UNICODE_STRING DriverName;
   ULONG RaiseIrqls;
   ULONG AcquireSpinLocks;
   ULONG SynchronizeExecutions;
   ULONG AllocationsAttempted;
   ULONG AllocationsSucceeded;
   ULONG AllocationsSucceededSpecialPool;
   ULONG AllocationsWithNoTag;
   ULONG TrimRequests;
   ULONG Trims;
   ULONG AllocationsFailed;
   ULONG AllocationsFailedDeliberately;
   ULONG Loads;
   ULONG Unloads;
   ULONG UnTrackedPool;
   ULONG CurrentPagedPoolAllocations;
   ULONG CurrentNonPagedPoolAllocations;
   ULONG PeakPagedPoolAllocations;
   ULONG PeakNonPagedPoolAllocations;
   ULONG PagedPoolUsageInBytes;
   ULONG NonPagedPoolUsageInBytes;
   ULONG PeakPagedPoolUsageInBytes;
   ULONG PeakNonPagedPoolUsageInBytes;
} SYSTEM_VERIFIER_INFORMATION, *PSYSTEM_VERIFIER_INFORMATION;

// FIXME: Class 52

// Class 53
typedef struct _SYSTEM_SESSION_PROCESS_INFORMATION
{
    ULONG SessionId;
    ULONG SizeOfBuf;
    PVOID Buffer; // Same format as in SystemProcessInformation
} SYSTEM_SESSION_PROCESS_INFORMATION, *PSYSTEM_SESSION_PROCESS_INFORMATION;

// FIXME: Class 54-97

//
// Hotpatch flags
//
#define RTL_HOTPATCH_SUPPORTED_FLAG         0x01
#define RTL_HOTPATCH_SWAP_OBJECT_NAMES      0x08 << 24
#define RTL_HOTPATCH_SYNC_RENAME_FILES      0x10 << 24
#define RTL_HOTPATCH_PATCH_USER_MODE        0x20 << 24
#define RTL_HOTPATCH_REMAP_SYSTEM_DLL       0x40 << 24
#define RTL_HOTPATCH_PATCH_KERNEL_MODE      0x80 << 24


// Class 69
typedef struct _SYSTEM_HOTPATCH_CODE_INFORMATION
{
    ULONG Flags;
    ULONG InfoSize;
    union
    {
        struct
        {
            ULONG Foo;
        } CodeInfo;
        struct
        {
            USHORT NameOffset;
            USHORT NameLength;
        } KernelInfo;
        struct
        {
            USHORT NameOffset;
            USHORT NameLength;
            USHORT TargetNameOffset;
            USHORT TargetNameLength;
            UCHAR PatchingFinished;
        } UserModeInfo;
        struct
        {
            USHORT NameOffset;
            USHORT NameLength;
            USHORT TargetNameOffset;
            USHORT TargetNameLength;
            UCHAR PatchingFinished;
            NTSTATUS ReturnCode;
            HANDLE TargetProcess;
        } InjectionInfo;
        struct
        {
            HANDLE FileHandle1;
            PIO_STATUS_BLOCK IoStatusBlock1;
            PVOID RenameInformation1;
            PVOID RenameInformationLength1;
            HANDLE FileHandle2;
            PIO_STATUS_BLOCK IoStatusBlock2;
            PVOID RenameInformation2;
            PVOID RenameInformationLength2;
        } RenameInfo;
        struct
        {
            HANDLE ParentDirectory;
            HANDLE ObjectHandle1;
            HANDLE ObjectHandle2;
        } AtomicSwap;
    };
} SYSTEM_HOTPATCH_CODE_INFORMATION, *PSYSTEM_HOTPATCH_CODE_INFORMATION;

//
// Class 75
//
#ifdef NTOS_MODE_USER
typedef struct _SYSTEM_FIRMWARE_TABLE_HANDLER
{
    ULONG ProviderSignature;
    BOOLEAN Register;
    PFNFTH FirmwareTableHandler;
    PVOID DriverObject;
} SYSTEM_FIRMWARE_TABLE_HANDLER, *PSYSTEM_FIRMWARE_TABLE_HANDLER;

//
// Class 76
//
typedef struct _SYSTEM_FIRMWARE_TABLE_INFORMATION
{
    ULONG ProviderSignature;
    SYSTEM_FIRMWARE_TABLE_ACTION Action;
    ULONG TableID;
    ULONG TableBufferLength;
    UCHAR TableBuffer[1];
} SYSTEM_FIRMWARE_TABLE_INFORMATION, *PSYSTEM_FIRMWARE_TABLE_INFORMATION;

//
// Class 81
//
typedef struct _SYSTEM_MEMORY_LIST_INFORMATION
{
   SIZE_T ZeroPageCount;
   SIZE_T FreePageCount;
   SIZE_T ModifiedPageCount;
   SIZE_T ModifiedNoWritePageCount;
   SIZE_T BadPageCount;
   SIZE_T PageCountByPriority[8];
   SIZE_T RepurposedPagesByPriority[8];
} SYSTEM_MEMORY_LIST_INFORMATION, *PSYSTEM_MEMORY_LIST_INFORMATION;

#endif
#endif