| 1 | /* $Id: DBGFAddr.cpp 2981 2007-06-01 16:01:28Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * VMM DBGF - Debugger Facility, Mixed Address Methods.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2007 innotek GmbH
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License as published by the Free Software Foundation,
|
|---|
| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
|
|---|
| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
|
|---|
| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * If you received this file as part of a commercial VirtualBox
|
|---|
| 18 | * distribution, then only the terms of your commercial VirtualBox
|
|---|
| 19 | * license agreement apply instead of the previous paragraph.
|
|---|
| 20 | */
|
|---|
| 21 |
|
|---|
| 22 |
|
|---|
| 23 | /*******************************************************************************
|
|---|
| 24 | * Header Files *
|
|---|
| 25 | *******************************************************************************/
|
|---|
| 26 | #define LOG_GROUP LOG_GROUP_DBGF
|
|---|
| 27 | #include <VBox/dbgf.h>
|
|---|
| 28 | #include <VBox/selm.h>
|
|---|
| 29 | #include "DBGFInternal.h"
|
|---|
| 30 | #include <VBox/vm.h>
|
|---|
| 31 | #include <VBox/mm.h>
|
|---|
| 32 | #include <VBox/err.h>
|
|---|
| 33 | #include <VBox/log.h>
|
|---|
| 34 |
|
|---|
| 35 |
|
|---|
| 36 |
|
|---|
| 37 | /**
|
|---|
| 38 | * Checks if an address is in the HMA or not.
|
|---|
| 39 | * @returns true if it's inside the HMA.
|
|---|
| 40 | * @returns flase if it's not inside the HMA.
|
|---|
| 41 | * @param pVM The VM handle.
|
|---|
| 42 | * @param FlatPtr The address in question.
|
|---|
| 43 | */
|
|---|
| 44 | DECLINLINE(bool) dbgfR3IsHMA(PVM pVM, RTGCUINTPTR FlatPtr)
|
|---|
| 45 | {
|
|---|
| 46 | return MMHyperIsInsideArea(pVM, FlatPtr);
|
|---|
| 47 | }
|
|---|
| 48 |
|
|---|
| 49 |
|
|---|
| 50 | /**
|
|---|
| 51 | * Creates a mixed address from a Sel:off pair.
|
|---|
| 52 | *
|
|---|
| 53 | * @returns VBox status code.
|
|---|
| 54 | * @param pVM The VM handle.
|
|---|
| 55 | * @param pAddress Where to store the mixed address.
|
|---|
| 56 | * @param Sel The selector part.
|
|---|
| 57 | * @param off The offset part.
|
|---|
| 58 | */
|
|---|
| 59 | DBGFR3DECL(int) DBGFR3AddrFromSelOff(PVM pVM, PDBGFADDRESS pAddress, RTSEL Sel, RTUINTPTR off)
|
|---|
| 60 | {
|
|---|
| 61 | pAddress->Sel = Sel;
|
|---|
| 62 | pAddress->off = off;
|
|---|
| 63 | if (Sel != DBGF_SEL_FLAT)
|
|---|
| 64 | {
|
|---|
| 65 | SELMSELINFO SelInfo;
|
|---|
| 66 | int rc = SELMR3GetSelectorInfo(pVM, Sel, &SelInfo);
|
|---|
| 67 | if (VBOX_FAILURE(rc))
|
|---|
| 68 | return rc;
|
|---|
| 69 | if (off > SelInfo.cbLimit)
|
|---|
| 70 | return VERR_OUT_OF_SELECTOR_BOUNDS;
|
|---|
| 71 | pAddress->FlatPtr = SelInfo.GCPtrBase + off;
|
|---|
| 72 | /** @todo fix this flat selector test! */
|
|---|
| 73 | if ( !SelInfo.GCPtrBase
|
|---|
| 74 | && SelInfo.Raw.Gen.u1Granularity
|
|---|
| 75 | && SelInfo.Raw.Gen.u1DefBig)
|
|---|
| 76 | pAddress->fFlags = DBGFADDRESS_FLAGS_FLAT;
|
|---|
| 77 | else if (SelInfo.cbLimit <= 0xffff)
|
|---|
| 78 | pAddress->fFlags = DBGFADDRESS_FLAGS_FAR16;
|
|---|
| 79 | else if (SelInfo.cbLimit <= 0xffffffff)
|
|---|
| 80 | pAddress->fFlags = DBGFADDRESS_FLAGS_FAR32;
|
|---|
| 81 | else
|
|---|
| 82 | pAddress->fFlags = DBGFADDRESS_FLAGS_FAR64;
|
|---|
| 83 | }
|
|---|
| 84 | else
|
|---|
| 85 | {
|
|---|
| 86 | pAddress->FlatPtr = off;
|
|---|
| 87 | pAddress->fFlags = DBGFADDRESS_FLAGS_FLAT;
|
|---|
| 88 | }
|
|---|
| 89 | pAddress->fFlags |= DBGFADDRESS_FLAGS_VALID;
|
|---|
| 90 | if (dbgfR3IsHMA(pVM, pAddress->FlatPtr))
|
|---|
| 91 | pAddress->fFlags |= DBGFADDRESS_FLAGS_HMA;
|
|---|
| 92 |
|
|---|
| 93 | return VINF_SUCCESS;
|
|---|
| 94 | }
|
|---|
| 95 |
|
|---|
| 96 |
|
|---|
| 97 | /**
|
|---|
| 98 | * Creates a mixed address from a flat address.
|
|---|
| 99 | *
|
|---|
| 100 | * @param pVM The VM handle.
|
|---|
| 101 | * @param pAddress Where to store the mixed address.
|
|---|
| 102 | * @param FlatPtr The flat pointer.
|
|---|
| 103 | */
|
|---|
| 104 | DBGFR3DECL(void) DBGFR3AddrFromFlat(PVM pVM, PDBGFADDRESS pAddress, RTGCUINTPTR FlatPtr)
|
|---|
| 105 | {
|
|---|
| 106 | pAddress->Sel = DBGF_SEL_FLAT;
|
|---|
| 107 | pAddress->off = FlatPtr;
|
|---|
| 108 | pAddress->FlatPtr = FlatPtr;
|
|---|
| 109 | pAddress->fFlags = DBGFADDRESS_FLAGS_FLAT | DBGFADDRESS_FLAGS_VALID;
|
|---|
| 110 | if (dbgfR3IsHMA(pVM, pAddress->FlatPtr))
|
|---|
| 111 | pAddress->fFlags |= DBGFADDRESS_FLAGS_HMA;
|
|---|
| 112 | }
|
|---|
| 113 |
|
|---|
| 114 |
|
|---|
| 115 | /**
|
|---|
| 116 | * Checks if the specified address is valid (checks the structure pointer too).
|
|---|
| 117 | *
|
|---|
| 118 | * @returns true if valid.
|
|---|
| 119 | * @returns false if invalid.
|
|---|
| 120 | * @param pVM The VM handle.
|
|---|
| 121 | * @param pAddress The address to validate.
|
|---|
| 122 | */
|
|---|
| 123 | DBGFR3DECL(bool) DBGFR3AddrIsValid(PVM pVM, PCDBGFADDRESS pAddress)
|
|---|
| 124 | {
|
|---|
| 125 | if (!VALID_PTR(pAddress))
|
|---|
| 126 | return false;
|
|---|
| 127 | if (!DBGFADDRESS_IS_VALID(pAddress))
|
|---|
| 128 | return false;
|
|---|
| 129 | /* more? */
|
|---|
| 130 | return true;
|
|---|
| 131 | }
|
|---|
