TRPMInternal.h revision 6eb31fb6807f232a26608ef513afc9529dec40a4
/* $Id$ */
/** @file
* TRPM - Internal header file.
*/
/*
* Copyright (C) 2006-2012 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#ifndef ___TRPMInternal_h
#define ___TRPMInternal_h
/** Enable to allow trap forwarding in GC. */
#ifdef VBOX_WITH_RAW_MODE
# define TRPM_FORWARD_TRAPS_IN_GC
#endif
/** First interrupt handler. Used for validating input. */
#define TRPM_HANDLER_INT_BASE 0x20
/** @defgroup grp_trpm_int Internals
* @ingroup grp_trpm
* @internal
* @{
*/
/** @name TRPMGCTrapIn* flags.
* The lower bits are offsets into the CPUMCTXCORE structure.
* @{ */
/** The mask for the operation. */
#define TRPM_TRAP_IN_OP_MASK 0xffff
/** Traps on MOV GS, eax. */
#define TRPM_TRAP_IN_MOV_GS 1
/** Traps on MOV FS, eax. */
#define TRPM_TRAP_IN_MOV_FS 2
/** Traps on MOV ES, eax. */
#define TRPM_TRAP_IN_MOV_ES 3
/** Traps on MOV DS, eax. */
#define TRPM_TRAP_IN_MOV_DS 4
/** Traps on IRET. */
#define TRPM_TRAP_IN_IRET 5
/** Set if this is a V86 resume. */
/** @} */
#if 0 /* not used */
/**
* Converts a TRPM pointer into a VM pointer.
* @returns Pointer to the VM structure the TRPM is part of.
* @param pTRPM Pointer to TRPM instance data.
*/
#endif
/**
* Converts a TRPM pointer into a TRPMCPU pointer.
* @returns Pointer to the VM structure the TRPMCPU is part of.
* @param pTRPM Pointer to TRPMCPU instance data.
* @remarks Raw-mode only, not SMP safe.
*/
/**
* TRPM Data (part of VM)
*
* IMPORTANT! Keep the nasm version of this struct up-to-date.
*/
#pragma pack(4)
typedef struct TRPM
{
/** Offset to the VM structure.
* See TRPM_2_VM(). */
/** Offset to the TRPMCPU structure.
* See TRPM2TRPMCPU(). */
/** IDT monitoring and sync flag (HWACC). */
bool fDisableMonitoring; /** @todo r=bird: bool and 7 byte achPadding1. */
/** Whether monitoring of the guest IDT is enabled or not.
*
* This configuration option is provided for speeding up guest like Solaris
* that put the IDT on the same page as a whole lot of other data that is
* frequently updated. The updates will cause #PFs and have to be interpreted
* by PGMInterpretInstruction which is slow compared to raw execution.
*
* If the guest is well behaved and doesn't change the IDT after loading it,
* there is no problem with dropping the IDT monitoring.
*
* @cfgm /TRPM/SafeToDropGuestIDTMonitoring boolean defaults to false.
*/
/** Padding to get the IDTs at a 16 byte alignment. */
/** IDTs. Aligned at 16 byte offset for speed. */
/** Bitmap for IDTEs that contain PATM handlers. (needed for relocation) */
/** Temporary Hypervisor trap handlers.
* NULL means default action. */
/** RC Pointer to the IDT shadow area (aIdt) in HMA. */
RCPTRTYPE(void *) pvMonShwIdtRC;
/** Current (last) Guest's IDTR. */
/** padding. */
/** Checked trap & interrupt handler array */
/** RC: The number of times writes to the Guest IDT were detected. */
/** HC: Profiling of the TRPMR3SyncIDT() method. */
/** GC: Statistics for the trap handlers. */
#ifdef VBOX_WITH_STATISTICS
/** Statistics for interrupt handlers (allocated on the hypervisor heap) - R3
* pointer. */
/** Statistics for interrupt handlers - R0 pointer. */
/** Statistics for interrupt handlers - RC pointer. */
/** Host interrupt statistics (allocated on the hypervisor heap) - RC ptr. */
/** Host interrupt statistics (allocated on the hypervisor heap) - R3 ptr. */
/** Host interrupt statistics (allocated on the hypervisor heap) - R0 ptr. */
#endif
} TRPM;
/** Pointer to TRPM Data. */
/**
* Converts a TRPMCPU pointer into a VM pointer.
* @returns Pointer to the VM structure the TRPMCPU is part of.
* @param pTRPM Pointer to TRPMCPU instance data.
*/
/**
* Converts a TRPMCPU pointer into a VMCPU pointer.
* @returns Pointer to the VMCPU structure the TRPMCPU is part of.
* @param pTRPM Pointer to TRPMCPU instance data.
*/
/**
* Per CPU data for TRPM.
*/
typedef struct TRPMCPU
{
/** Offset into the VM structure.
* See TRPMCPU_2_VM(). */
/** Offset into the VMCPU structure.
* See TRPMCPU_2_VMCPU(). */
/** Active Interrupt or trap vector number.
* If not UINT32_MAX this indicates that we're currently processing a
* interrupt, trap, fault, abort, whatever which have arrived at that
* vector number.
*/
/** Active trap type. */
/** CR2 at the time of the active exception. */
/** Saved trap vector number. */
/** Saved trap type. */
/** Saved errorcode. */
/** Saved cr2. */
/** Previous trap vector # - for debugging. */
} TRPMCPU;
/** Pointer to TRPMCPU Data. */
#pragma pack()
VMMRCDECL(int) trpmRCGuestIDTWriteHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPTR pvRange, uintptr_t offRange);
VMMRCDECL(int) trpmRCShadowIDTWriteHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPTR pvRange, uintptr_t offRange);
/**
*
* @returns VBox status code.
* @param pVM Pointer to the VM.
*/
#ifdef IN_RING3
/**
* Clear passthrough interrupt gate handler (reset to default handler)
*
* @returns VBox status code.
* @param pVM Pointer to the VM.
*/
#endif
#ifdef IN_RING0
/**
* Calls the interrupt gate as if we received an interrupt while in Ring-0.
*
* @param uIP The interrupt gate IP.
* @param SelCS The interrupt gate CS.
* @param RSP The interrupt gate RSP. ~0 if no stack switch should take place. (only AMD64)
*/
/**
* Issues a software interrupt to the specified interrupt vector.
*
* @param uActiveVector The vector number.
*/
#endif /* IN_RING0 */
/** @} */
#endif