Leaked source code of windows server 2003
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113 lines
2.3 KiB

/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
dpmi.h
Abstract:
This file contains code to implement support for the DPMI bops
Author:
Dave Hastings (daveh) 27-Jun-1991
Revision History:
--*/
/* ASM
ifdef WOW_x86
include vint.inc
endif
include bop.inc
*/
#define LDT_SIZE 0x1FFF
// DPMI Bop Sub Functions
#define InitDosxRM 0
#define InitDosx 1
#define InitLDT 2
#define GetFastBopAddress 3
#define InitIDT 4
#define InitExceptionHandlers 5
#define InitApp 6
#define TerminateApp 7
#define DpmiInUse 8
#define DpmiNoLongerInUse 9
#define DPMISwitchToProtectedMode 10 /* prefix necessary */
#define DPMISwitchToRealMode 11
#define SetAltRegs 12
#define IntHandlerIret 13
#define IntHandlerIretd 14
#define FaultHandlerIret 15
#define FaultHandlerIretd 16
#define DpmiUnhandledException 17
#define RMCallBackCall 18
#define ReflectIntrToPM 19
#define ReflectIntrToV86 20
#define InitPmStackInfo 21
#define VcdPmSvcCall32 22
#define SetDescriptorTableEntries 23
#define ResetLDTUserBase 24
#define XlatInt21Call 25
#define Int31Entry 26
#define Int31Call 27
#define HungAppIretAndExit 28
#define MAX_DPMI_BOP_FUNC HungAppIretAndExit + 1
/* ASM
DPMIBOP macro SubFun
BOP BOP_DPMI
db SubFun
endm
*/
//
// Definitions for real mode call backs
//
/* XLATOFF */
typedef struct _RMCB_INFO {
BOOL bInUse;
USHORT StackSel;
USHORT StrucSeg;
ULONG StrucOffset;
USHORT ProcSeg;
ULONG ProcOffset;
} RMCB_INFO;
// 16 is the minimum defined in the dpmi spec
#define MAX_RMCBS 16
typedef struct _MEM_DPMI {
PVOID Address;
ULONG Length;
struct _MEM_DPMI * Prev;
struct _MEM_DPMI * Next;
WORD Owner;
WORD Sel;
WORD SelCount;
} MEM_DPMI, *PMEM_DPMI;
VOID
SetShadowDescriptorEntries(
USHORT SelStart,
USHORT SelCount
);
/* XLATON */