| 1 | /* $Id: DBGFMem.cpp 6000 2007-12-07 15:12:49Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VMM DBGF - Debugger Facility, Memory Methods.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2007 innotek GmbH
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 |
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| 19 | /*******************************************************************************
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| 20 | * Header Files *
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| 21 | *******************************************************************************/
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| 22 | #define LOG_GROUP LOG_GROUP_DBGF
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| 23 | #include <VBox/dbgf.h>
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| 24 | #include <VBox/pgm.h>
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| 25 | #include "DBGFInternal.h"
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| 26 | #include <VBox/vm.h>
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| 27 | #include <VBox/err.h>
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| 28 | #include <VBox/log.h>
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| 29 |
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| 30 |
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| 31 |
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| 32 | /**
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| 33 | * Scan guest memory for an exact byte string.
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| 34 | *
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| 35 | * @returns VBox status code.
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| 36 | * @param pVM The VM handle.
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| 37 | * @param pAddress Where to store the mixed address.
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| 38 | * @param cbRange The number of bytes to scan.
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| 39 | * @param pabNeedle What to search for - exact search.
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| 40 | * @param cbNeedle Size of the search byte string.
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| 41 | * @param pHitAddress Where to put the address of the first hit.
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| 42 | */
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| 43 | static DECLCALLBACK(int) dbgfR3MemScan(PVM pVM, PCDBGFADDRESS pAddress, RTGCUINTPTR cbRange, const uint8_t *pabNeedle, size_t cbNeedle,
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| 44 | PDBGFADDRESS pHitAddress)
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| 45 | {
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| 46 | /*
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| 47 | * Validate the input we use, PGM does the rest.
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| 48 | */
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| 49 | if (!DBGFR3AddrIsValid(pVM, pAddress))
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| 50 | return VERR_INVALID_POINTER;
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| 51 | if (!VALID_PTR(pHitAddress))
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| 52 | return VERR_INVALID_POINTER;
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| 53 | if (DBGFADDRESS_IS_HMA(pAddress))
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| 54 | return VERR_INVALID_POINTER;
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| 55 |
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| 56 | /*
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| 57 | * Select DBGF worker by addressing mode.
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| 58 | */
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| 59 | int rc;
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| 60 | PGMMODE enmMode = PGMGetGuestMode(pVM);
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| 61 | if ( enmMode == PGMMODE_REAL
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| 62 | || enmMode == PGMMODE_PROTECTED
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| 63 | || DBGFADDRESS_IS_PHYS(pAddress)
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| 64 | )
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| 65 | {
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| 66 | RTGCPHYS PhysHit;
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| 67 | rc = PGMR3DbgScanPhysical(pVM, pAddress->FlatPtr, cbRange, pabNeedle, cbNeedle, &PhysHit);
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| 68 | if (RT_SUCCESS(rc))
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| 69 | DBGFR3AddrFromPhys(pVM, pHitAddress, PhysHit);
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| 70 | }
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| 71 | else
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| 72 | {
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| 73 | RTGCUINTPTR GCPtrHit;
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| 74 | rc = PGMR3DbgScanVirtual(pVM, pAddress->FlatPtr, cbRange, pabNeedle, cbNeedle, &GCPtrHit);
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| 75 | if (RT_SUCCESS(rc))
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| 76 | DBGFR3AddrFromFlat(pVM, pHitAddress, GCPtrHit);
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| 77 | }
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| 78 |
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| 79 | return rc;
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| 80 | }
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| 81 |
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| 82 |
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| 83 | /**
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| 84 | * Scan guest memory for an exact byte string.
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| 85 | *
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| 86 | * @returns VBox status codes:
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| 87 | * @retval VINF_SUCCESS and *pGCPtrHit on success.
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| 88 | * @retval VERR_DBGF_MEM_NOT_FOUND if not found.
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| 89 | * @retval VERR_INVALID_POINTER if any of the pointer arguments are invalid.
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| 90 | * @retval VERR_INVALID_ARGUMENT if any other arguments are invalid.
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| 91 | *
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| 92 | * @param pVM The VM handle.
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| 93 | * @param pAddress Where to store the mixed address.
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| 94 | * @param cbRange The number of bytes to scan.
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| 95 | * @param pabNeedle What to search for - exact search.
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| 96 | * @param cbNeedle Size of the search byte string.
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| 97 | * @param pHitAddress Where to put the address of the first hit.
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| 98 | *
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| 99 | * @thread Any thread.
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| 100 | */
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| 101 | DBGFR3DECL(int) DBGFR3MemScan(PVM pVM, PCDBGFADDRESS pAddress, RTGCUINTPTR cbRange, const uint8_t *pabNeedle, size_t cbNeedle, PDBGFADDRESS pHitAddress)
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| 102 | {
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| 103 | PVMREQ pReq;
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| 104 | int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)dbgfR3MemScan, 6,
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| 105 | pVM, pAddress, cbRange, pabNeedle, cbNeedle, pHitAddress);
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| 106 | if (VBOX_SUCCESS(rc))
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| 107 | rc = pReq->iStatus;
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| 108 | VMR3ReqFree(pReq);
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| 109 |
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| 110 | return rc;
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| 111 | }
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| 112 |
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| 113 |
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