/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
vdm.h
Abstract:
This include file defines the usermode visible portions of the vdm support
Author:
Revision History:
--*/
/* XLATOFF */
#ifndef _VDM_H_
#define _VDM_H_
typedef enum _VdmServiceClass {
VdmStartExecution, // is also defined in ntos\ke\i386\biosa.asm
VdmQueueInterrupt,
VdmDelayInterrupt,
VdmInitialize,
VdmFeatures,
VdmSetInt21Handler,
VdmQueryDir,
VdmPrinterDirectIoOpen,
VdmPrinterDirectIoClose,
} VDMSERVICECLASS, *PVDMSERVICECLASS;
#if defined (_NTDEF_)
NTSTATUS
NtVdmControl(
IN VDMSERVICECLASS Service,
IN OUT PVOID ServiceData
);
typedef struct _VdmQueryDirInfo {
HANDLE FileHandle;
PVOID FileInformation;
ULONG Length;
PUNICODE_STRING FileName;
ULONG FileIndex;
} VDMQUERYDIRINFO, *PVDMQUERYDIRINFO;
#endif
/*
* The Vdm Virtual Ica
* note: this structure definition is duplicated in
* mvdm\softpc\base\inc\ica.c. KEEP IN SYNC
*
*/
typedef struct _VdmVirtualIca{
LONG ica_count[8]; /* Count of Irq pending not in irr */
LONG ica_int_line; /* Current pending interrupt */
LONG ica_cpu_int; /* The state of the INT line to the CPU */
USHORT ica_base; /* Interrupt base address for cpu */
USHORT ica_hipri; /* Line no. of highest priority line */
USHORT ica_mode; /* Various single-bit modes */
UCHAR ica_master; /* 1 = Master; 0 = Slave */
UCHAR ica_irr; /* Interrupt Request Register */
UCHAR ica_isr; /* In Service Register */
UCHAR ica_imr; /* Interrupt Mask Register */
UCHAR ica_ssr; /* Slave Select Register */
} VDMVIRTUALICA, *PVDMVIRTUALICA;
//
// copied from softpc\base\system\ica.c
//
#define ICA_AEOI 0x0020
#define ICA_SMM 0x0200
#define ICA_SFNM 0x0100
#if defined(i386)
#define VDM_PM_IRETBOPSEG 0x147
#define VDM_PM_IRETBOPOFF 0x6
#define VDM_PM_IRETBOPSIZE 8
#else
#define VDM_PM_IRETBOPSEG 0xd3
#define VDM_PM_IRETBOPOFF 0x0
#define VDM_PM_IRETBOPSIZE 4
#endif
#define VDM_RM_IRETBOPSIZE 4
// VDM state which was earlier in vdmtib->flags has been moved to
// dos arena at following fixed address.
#ifdef _VDMNTOS_
#define FIXED_NTVDMSTATE_LINEAR VdmFixedStateLinear
#define FIXED_NTVDMSTATE_SIZE 4
#else // _VDMNTOS_
/* XLATON */
#if defined(_PC98_)
#define FIXED_NTVDMSTATE_SEGMENT 0x60
#else // !_PC98_
#define FIXED_NTVDMSTATE_SEGMENT 0x70
#endif // _PC98_
#define FIXED_NTVDMSTATE_OFFSET 0x14
#define FIXED_NTVDMSTATE_LINEAR ((FIXED_NTVDMSTATE_SEGMENT << 4) + FIXED_NTVDMSTATE_OFFSET)
#define FIXED_NTVDMSTATE_SIZE 4
/* XLATOFF */
#endif // _VDMNTOS_
#if defined (i386)
// defined on x86 only since on mips we must reference thru sas
#define pNtVDMState ((PULONG)FIXED_NTVDMSTATE_LINEAR)
#endif
/* XLATON */
//
// Vdm State Flags
//
#define VDM_INT_HARDWARE 0x00000001
#define VDM_INT_TIMER 0x00000002
// A bitMask which includes all interrupts
#define VDM_INTERRUPT_PENDING (VDM_INT_HARDWARE | VDM_INT_TIMER)
#define VDM_BREAK_EXCEPTIONS 0x00000008
#define VDM_BREAK_DEBUGGER 0x00000010
#define VDM_PROFILE 0x00000020
#define VDM_ANALYZE_PROFILE 0x00000040
#define VDM_32BIT_APP 0x00000100
#define VDM_VIRTUAL_INTERRUPTS 0x00000200
#define VDM_ON_MIPS 0x00000400
#define VDM_EXEC 0x00000800
#define VDM_RM 0x00001000
#define VDM_WOWBLOCKED 0x00100000
#define VDM_IDLEACTIVITY 0x00200000
#define VDM_TIMECHANGE 0x00400000
#define VDM_WOWHUNGAPP 0x00800000
#define VDM_PE_MASK 0x80000000
/* XLATOFF */
//
// If the size of the structure is changed, ke\i386\instemul.asm must
// be modified too. If not, it will fail to build
//
#pragma pack(1)
typedef struct _Vdm_InterruptHandler {
USHORT CsSelector;
USHORT Flags;
ULONG Eip;
} VDM_INTERRUPTHANDLER, *PVDM_INTERRUPTHANDLER;
#pragma pack()
typedef struct _Vdm_FaultHandler {
USHORT CsSelector;
USHORT SsSelector;
ULONG Eip;
ULONG Esp;
ULONG Flags;
} VDM_FAULTHANDLER, *PVDM_FAULTHANDLER;
#pragma pack(1)
/* XLATON */
typedef struct _VdmPmStackInfo { /* VDMTIB */
USHORT LockCount;
USHORT Flags;
USHORT SsSelector;
USHORT SaveSsSelector;
ULONG SaveEsp;
ULONG SaveEip;
ULONG DosxIntIret;
ULONG DosxIntIretD;
ULONG DosxFaultIret;
ULONG DosxFaultIretD;
} VDM_PMSTACKINFO, *PVDM_PMSTACKINFO;
/* XLATOFF */
#pragma pack()
#if defined(i386)
typedef struct _VdmIcaUserData {
PVOID pIcaLock; // rtl critical section
PVDMVIRTUALICA pIcaMaster;
PVDMVIRTUALICA pIcaSlave;
PULONG pDelayIrq;
PULONG pUndelayIrq;
PULONG pDelayIret;
PULONG pIretHooked;
PULONG pAddrIretBopTable;
PHANDLE phWowIdleEvent;
}VDMICAUSERDATA, *PVDMICAUSERDATA;
typedef struct _VdmDelayIntsServiceData {
ULONG Delay; /* Delay Time in usecs */
ULONG DelayIrqLine; /* IRQ Number of ints delayed */
HANDLE hThread; /* Thread Handle of CurrentMonitorTeb */
}VDMDELAYINTSDATA, *PVDMDELAYINTSDATA;
typedef struct _VDMSET_INT21_HANDLER_DATA {
ULONG Selector;
ULONG Offset;
BOOLEAN Gate32;
}VDMSET_INT21_HANDLER_DATA, *PVDMSET_INT21_HANDLER_DATA;
#if defined (_NTDEF_)
NTSTATUS
NtVdmControl(
IN VDMSERVICECLASS Service,
IN OUT PVOID ServiceData
);
//
// Interrupt handler flags
//
#define VDM_INT_INT_GATE 0x00000001
#define VDM_INT_TRAP_GATE 0x00000000
#define VDM_INT_32 0x00000002
#define VDM_INT_16 0x00000000
typedef enum _VdmEventClass {
VdmIO,
VdmStringIO,
VdmMemAccess,
VdmIntAck,
VdmBop,
VdmError,
VdmIrq13,
VdmMaxEvent
} VDMEVENTCLASS, *PVDMEVENTCLASS;
// VdmPrinterInfo
#define VDM_NUMBER_OF_LPT 3
#define PRT_MODE_NO_SIMULATION 1
#define PRT_MODE_SIMULATE_STATUS_PORT 2
#define PRT_MODE_DIRECT_IO 3
#define PRT_MODE_VDD_CONNECTED 4
#define PRT_DATA_BUFFER_SIZE 16
typedef struct _Vdm_Printer_Info {
PUCHAR prt_State;
PUCHAR prt_Control;
PUCHAR prt_Status;
PUCHAR prt_HostState;
USHORT prt_PortAddr[VDM_NUMBER_OF_LPT];
HANDLE prt_Handle[VDM_NUMBER_OF_LPT];
UCHAR prt_Mode[VDM_NUMBER_OF_LPT];
USHORT prt_BytesInBuffer[VDM_NUMBER_OF_LPT];
UCHAR prt_Buffer[VDM_NUMBER_OF_LPT][PRT_DATA_BUFFER_SIZE];
ULONG prt_Scratch;
} VDM_PRINTER_INFO, *PVDM_PRINTER_INFO;
typedef struct _VdmIoInfo {
USHORT PortNumber;
USHORT Size;
BOOLEAN Read;
} VDMIOINFO, *PVDMIOINFO;
typedef struct _VdmFaultInfo{
ULONG FaultAddr;
ULONG RWMode;
} VDMFAULTINFO, *PVDMFAULTINFO;
typedef struct _VdmStringIoInfo {
USHORT PortNumber;
USHORT Size;
BOOLEAN Rep;
BOOLEAN Read;
ULONG Count;
ULONG Address;
} VDMSTRINGIOINFO, *PVDMSTRINGIOINFO;
typedef ULONG VDMBOPINFO;
typedef NTSTATUS VDMERRORINFO;
typedef ULONG VDMINTACKINFO;
#define VDMINTACK_RAEOIMASK 0x0000ffff
#define VDMINTACK_SLAVE 0x00010000
#define VDMINTACK_AEOI 0x00020000
typedef struct _VdmEventInfo {
ULONG Size;
VDMEVENTCLASS Event;
ULONG InstructionSize;
union {
VDMIOINFO IoInfo;
VDMSTRINGIOINFO StringIoInfo;
VDMBOPINFO BopNumber;
VDMFAULTINFO FaultInfo;
VDMERRORINFO ErrorStatus;
VDMINTACKINFO IntAckInfo;
};
} VDMEVENTINFO, *PVDMEVENTINFO;
// Sudeepb 12-Mar-1993
// Scratch areas are used from VDMTib to get user space while
// in kernel. This allows us to make Nt APIs (faster) from kernel
// rather than Zw apis (slower). These are currently being used
// for DOS read/write.
typedef struct _Vdm_Tib {
ULONG Size;
VDM_INTERRUPTHANDLER VdmInterruptHandlers[256];
VDM_FAULTHANDLER VdmFaultHandlers[32];
CONTEXT MonitorContext;
CONTEXT VdmContext;
VDMEVENTINFO EventInfo;
VDM_PRINTER_INFO PrinterInfo;
ULONG TempArea1[2]; // Scratch area
ULONG TempArea2[2]; // Scratch aArea
VDM_PMSTACKINFO PmStackInfo;
} VDM_TIB, *PVDM_TIB;
#define EFLAGS_TF_MASK 0x00000100
#define EFLAGS_NT_MASK 0x00004000
//
// Feature flags returned by NtVdmControl(VdmFeatures...)
//
// System/processor supports fast emulation for IF instructions
#define V86_VIRTUAL_INT_EXTENSIONS 0x00000001 // in v86 mode
#define PM_VIRTUAL_INT_EXTENSIONS 0x00000002 // in protected mode (non-flat)
#endif // if defined _NTDEF_
#endif
#endif
