| 1 | /* $Id: DBGFAll.cpp 44528 2013-02-04 14:27:54Z vboxsync $ */
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| 2 | /** @file
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| 3 | * DBGF - Debugger Facility, All Context Code.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2013 Oracle Corporation
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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/vmm/dbgf.h>
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| 24 | #include "DBGFInternal.h"
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| 25 | #include <VBox/vmm/vm.h>
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| 26 | #include <iprt/assert.h>
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| 27 |
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| 28 |
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| 29 | /**
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| 30 | * Gets the hardware breakpoint configuration as DR7.
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| 31 | *
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| 32 | * @returns DR7 from the DBGF point of view.
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| 33 | * @param pVM Pointer to the VM.
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| 34 | */
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| 35 | VMM_INT_DECL(RTGCUINTREG) DBGFBpGetDR7(PVM pVM)
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| 36 | {
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| 37 | RTGCUINTREG uDr7 = X86_DR7_GD | X86_DR7_GE | X86_DR7_LE | X86_DR7_MB1_MASK;
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| 38 | PDBGFBP pBp = &pVM->dbgf.s.aHwBreakpoints[0];
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| 39 | unsigned cLeft = RT_ELEMENTS(pVM->dbgf.s.aHwBreakpoints);
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| 40 | while (cLeft-- > 0)
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| 41 | {
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| 42 | if ( pBp->enmType == DBGFBPTYPE_REG
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| 43 | && pBp->fEnabled)
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| 44 | {
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| 45 | static const uint8_t s_au8Sizes[8] =
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| 46 | {
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| 47 | X86_DR7_LEN_BYTE, X86_DR7_LEN_BYTE, X86_DR7_LEN_WORD, X86_DR7_LEN_BYTE,
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| 48 | X86_DR7_LEN_DWORD,X86_DR7_LEN_BYTE, X86_DR7_LEN_BYTE, X86_DR7_LEN_QWORD
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| 49 | };
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| 50 | uDr7 |= X86_DR7_G(pBp->u.Reg.iReg)
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| 51 | | X86_DR7_RW(pBp->u.Reg.iReg, pBp->u.Reg.fType)
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| 52 | | X86_DR7_LEN(pBp->u.Reg.iReg, s_au8Sizes[pBp->u.Reg.cb]);
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| 53 | }
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| 54 | pBp++;
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| 55 | }
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| 56 | return uDr7;
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| 57 | }
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| 58 |
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| 59 |
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| 60 | /**
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| 61 | * Gets the address of the hardware breakpoint number 0.
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| 62 | *
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| 63 | * @returns DR0 from the DBGF point of view.
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| 64 | * @param pVM Pointer to the VM.
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| 65 | */
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| 66 | VMM_INT_DECL(RTGCUINTREG) DBGFBpGetDR0(PVM pVM)
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| 67 | {
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| 68 | PCDBGFBP pBp = &pVM->dbgf.s.aHwBreakpoints[0];
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| 69 | Assert(pBp->u.Reg.iReg == 0);
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| 70 | return pBp->GCPtr;
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| 71 | }
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| 72 |
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| 73 |
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| 74 | /**
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| 75 | * Gets the address of the hardware breakpoint number 1.
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| 76 | *
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| 77 | * @returns DR1 from the DBGF point of view.
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| 78 | * @param pVM Pointer to the VM.
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| 79 | */
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| 80 | VMM_INT_DECL(RTGCUINTREG) DBGFBpGetDR1(PVM pVM)
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| 81 | {
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| 82 | PCDBGFBP pBp = &pVM->dbgf.s.aHwBreakpoints[1];
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| 83 | Assert(pBp->u.Reg.iReg == 1);
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| 84 | return pBp->GCPtr;
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| 85 | }
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| 86 |
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| 87 |
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| 88 | /**
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| 89 | * Gets the address of the hardware breakpoint number 2.
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| 90 | *
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| 91 | * @returns DR2 from the DBGF point of view.
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| 92 | * @param pVM Pointer to the VM.
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| 93 | */
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| 94 | VMM_INT_DECL(RTGCUINTREG) DBGFBpGetDR2(PVM pVM)
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| 95 | {
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| 96 | PCDBGFBP pBp = &pVM->dbgf.s.aHwBreakpoints[2];
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| 97 | Assert(pBp->u.Reg.iReg == 2);
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| 98 | return pBp->GCPtr;
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| 99 | }
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| 100 |
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| 101 |
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| 102 | /**
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| 103 | * Gets the address of the hardware breakpoint number 3.
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| 104 | *
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| 105 | * @returns DR3 from the DBGF point of view.
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| 106 | * @param pVM Pointer to the VM.
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| 107 | */
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| 108 | VMM_INT_DECL(RTGCUINTREG) DBGFBpGetDR3(PVM pVM)
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| 109 | {
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| 110 | PCDBGFBP pBp = &pVM->dbgf.s.aHwBreakpoints[3];
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| 111 | Assert(pBp->u.Reg.iReg == 3);
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| 112 | return pBp->GCPtr;
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| 113 | }
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| 114 |
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| 115 |
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| 116 | /**
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| 117 | * Returns the single stepping state for a virtual CPU.
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| 118 | *
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| 119 | * @returns stepping (true) or not (false).
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| 120 | *
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| 121 | * @param pVCpu Pointer to the VMCPU.
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| 122 | */
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| 123 | VMM_INT_DECL(bool) DBGFIsStepping(PVMCPU pVCpu)
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| 124 | {
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| 125 | return pVCpu->dbgf.s.fSingleSteppingRaw;
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| 126 | }
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| 127 |
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