| 1 | /* $Id: VBoxDebugAgentLib.c 108802 2025-03-31 15:58:24Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBox implementation of DebugAgentLib that reports EFI state transitions
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| 4 | * to DevEFI for debugging purposes.
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| 5 | */
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| 6 |
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| 7 | /*
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| 8 | * Copyright (C) 2013-2024 Oracle and/or its affiliates.
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| 9 | *
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| 10 | * This file is part of VirtualBox base platform packages, as
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| 11 | * available from https://www.virtualbox.org.
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| 12 | *
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| 13 | * This program is free software; you can redistribute it and/or
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| 14 | * modify it under the terms of the GNU General Public License
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| 15 | * as published by the Free Software Foundation, in version 3 of the
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| 16 | * License.
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| 17 | *
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| 18 | * This program is distributed in the hope that it will be useful, but
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| 19 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 21 | * General Public License for more details.
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| 22 | *
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| 23 | * You should have received a copy of the GNU General Public License
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| 24 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 25 | *
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| 26 | * The contents of this file may alternatively be used under the terms
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| 27 | * of the Common Development and Distribution License Version 1.0
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| 28 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 29 | * in the VirtualBox distribution, in which case the provisions of the
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| 30 | * CDDL are applicable instead of those of the GPL.
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| 31 | *
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| 32 | * You may elect to license modified versions of this file under the
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| 33 | * terms and conditions of either the GPL or the CDDL or both.
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| 34 | *
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| 35 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 36 | */
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| 37 |
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| 38 |
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| 39 | /*********************************************************************************************************************************
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| 40 | * Header Files *
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| 41 | *********************************************************************************************************************************/
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| 42 | #include <Base.h>
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| 43 | #include <Library/DebugAgentLib.h>
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| 44 | #include <Library/DebugLib.h>
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| 45 | #include "VBoxPkg.h"
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| 46 | #include "../../../../DevEFI.h"
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| 47 |
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| 48 |
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| 49 | VOID
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| 50 | EFIAPI
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| 51 | InitializeDebugAgent(
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| 52 | IN UINT32 InitFlag,
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| 53 | IN VOID *Context OPTIONAL,
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| 54 | IN DEBUG_AGENT_CONTINUE Function OPTIONAL
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| 55 | )
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| 56 | {
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| 57 | /*
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| 58 | * Do the reporting.
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| 59 | */
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| 60 | EFIDBGPOINT enmDbgPoint;
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| 61 | switch (InitFlag)
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| 62 | {
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| 63 | case DEBUG_AGENT_INIT_PREMEM_SEC: enmDbgPoint = EFIDBGPOINT_SEC_PREMEM; break;
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| 64 | case DEBUG_AGENT_INIT_POSTMEM_SEC: enmDbgPoint = EFIDBGPOINT_SEC_POSTMEM; break;
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| 65 | case DEBUG_AGENT_INIT_DXE_CORE: enmDbgPoint = EFIDBGPOINT_DXE_CORE; break;
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| 66 | case DEBUG_AGENT_INIT_SMM: enmDbgPoint = EFIDBGPOINT_SMM; break;
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| 67 | case DEBUG_AGENT_INIT_ENTER_SMI: enmDbgPoint = EFIDBGPOINT_SMI_ENTER; break;
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| 68 | case DEBUG_AGENT_INIT_EXIT_SMI: enmDbgPoint = EFIDBGPOINT_SMI_EXIT; break;
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| 69 | case DEBUG_AGENT_INIT_S3: enmDbgPoint = EFIDBGPOINT_GRAPHICS; break;
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| 70 | case DEBUG_AGENT_INIT_DXE_AP: enmDbgPoint = EFIDBGPOINT_DXE_AP; break;
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| 71 | case DEBUG_AGENT_INIT_PEI: enmDbgPoint = EFIDBGPOINT_PEI; break;
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| 72 | case DEBUG_AGENT_INIT_DXE_LOAD: enmDbgPoint = EFIDBGPOINT_DXE_LOAD; break;
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| 73 | case DEBUG_AGENT_INIT_DXE_UNLOAD: enmDbgPoint = EFIDBGPOINT_DXE_UNLOAD; break;
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| 74 | case DEBUG_AGENT_INIT_REINITIALIZE: enmDbgPoint = EFIDBGPOINT_REINITIALIZE; break;
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| 75 | case DEBUG_AGENT_INIT_DXE_CORE_LATE: enmDbgPoint = EFIDBGPOINT_DXE_CORE_LATE; break;
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| 76 | case DEBUG_AGENT_INIT_THUNK_PEI_IA32TOX64:
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| 77 | default:
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| 78 | ASSERT(false);
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| 79 | enmDbgPoint = EFIDBGPOINT_INVALID;
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| 80 | break;
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| 81 | }
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| 82 | if (enmDbgPoint != EFIDBGPOINT_INVALID)
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| 83 | ASMOutU32(EFI_PORT_DEBUG_POINT, enmDbgPoint);
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| 84 |
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| 85 |
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| 86 | /*
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| 87 | * Call resume function if supplied.
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| 88 | */
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| 89 | if (Function)
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| 90 | Function(Context);
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| 91 | }
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| 92 |
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| 93 |
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| 94 | BOOLEAN
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| 95 | EFIAPI
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| 96 | SaveAndSetDebugTimerInterrupt(
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| 97 | IN BOOLEAN EnableStatus
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| 98 | )
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| 99 | {
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| 100 | NOREF(EnableStatus);
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| 101 | return FALSE;
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| 102 | }
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| 103 |
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