extypes.h

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/*++ 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 NTSYSAPI 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)

//
// NtRaiseHardError-related parameters
//
#define MAXIMUM_HARDERROR_PARAMETERS        4
#define HARDERROR_OVERRIDE_ERRORMODE        0x10000000

//
// 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,
    OptionOkNoWait,
    OptionCancelTryContinue
} 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, 
    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_PTR 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_PTR 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;
    ULONG PadPadAlignment;
} SYSTEM_THREAD_INFORMATION, *PSYSTEM_THREAD_INFORMATION;
#ifndef _WIN64
C_ASSERT(sizeof(SYSTEM_THREAD_INFORMATION) == 0x40); // Must be 8-byte aligned
#endif

typedef struct _SYSTEM_PROCESS_INFORMATION
{
    ULONG NextEntryOffset;
    ULONG NumberOfThreads;
    LARGE_INTEGER WorkingSetPrivateSize; //VISTA
    ULONG HardFaultCount; //WIN7
    ULONG NumberOfThreadsHighWatermark; //WIN7
    ULONGLONG CycleTime; //WIN7
    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;
    SIZE_T VirtualSize;
    ULONG 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;
#ifndef _WIN64
C_ASSERT(sizeof(SYSTEM_PROCESS_INFORMATION) == 0xB8); // Must be 8-byte aligned
#endif

//
// 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
{
    SIZE_T 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
{
    SIZE_T CurrentSize;
    SIZE_T PeakSize;
    ULONG PageFaultCount;
    SIZE_T MinimumWorkingSet;
    SIZE_T MaximumWorkingSet;
    SIZE_T CurrentSizeIncludingTransitionInPages;
    SIZE_T 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;
    SIZE_T PagedUsed;
    ULONG NonPagedAllocs;
    ULONG NonPagedFrees;
    SIZE_T 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;
    SIZE_T 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;
} 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;
   SIZE_T PagedPoolUsageInBytes;
   SIZE_T NonPagedPoolUsageInBytes;
   SIZE_T PeakPagedPoolUsageInBytes;
   SIZE_T 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];
   SIZE_T ModifiedPageCountPageFile;
} SYSTEM_MEMORY_LIST_INFORMATION, *PSYSTEM_MEMORY_LIST_INFORMATION;

#endif
#endif