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/* $Id: VBoxPeCoffExtraActionLib.c $ */
/** @file
* VBox implementation of DebugAgentLib that reports EFI state transitions
* to DevEFI for debugging purposes.
*/
/*
* Copyright (C) 2013 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* 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.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include <Base.h>
#include <Library/PeCoffExtraActionLib.h>
#include <Library/DebugLib.h>
#include "VBoxPkg.h"
#include "../../../../DevEFI.h"
static void vboxImageEvtU64(uint32_t uCmd, uint64_t uValue)
{
RTUINT64U u; /* 64-bit shift builtins. */
u.u = uValue;
ASMOutU32(EFI_PORT_IMAGE_EVENT, EFI_IMAGE_EVT_MAKE(uCmd, u.au16[3]));
ASMOutU32(EFI_PORT_IMAGE_EVENT, EFI_IMAGE_EVT_MAKE(uCmd, u.au16[2]));
ASMOutU32(EFI_PORT_IMAGE_EVENT, EFI_IMAGE_EVT_MAKE(uCmd, u.au16[1]));
ASMOutU32(EFI_PORT_IMAGE_EVENT, EFI_IMAGE_EVT_MAKE(uCmd, u.au16[0]));
}
static void vboxImageEvtString(uint32_t uCmd, const char *pszName)
{
unsigned char uch;
while ((uch = *pszName++) != '\0')
ASMOutU32(EFI_PORT_IMAGE_EVENT, EFI_IMAGE_EVT_MAKE(uCmd, uch));
}
static void vboxImageEvtEmitOne(PE_COFF_LOADER_IMAGE_CONTEXT const *pImageCtx, uint32_t uEvt)
{
ASMOutU32(EFI_PORT_IMAGE_EVENT, uEvt);
if (pImageCtx->DestinationAddress)
vboxImageEvtU64(EFI_IMAGE_EVT_CMD_ADDR0, pImageCtx->DestinationAddress);
else
vboxImageEvtU64(EFI_IMAGE_EVT_CMD_ADDR0, pImageCtx->ImageAddress);
vboxImageEvtU64(EFI_IMAGE_EVT_CMD_SIZE0, pImageCtx->ImageSize);
if (pImageCtx->PdbPointer)
vboxImageEvtString(EFI_IMAGE_EVT_CMD_NAME, pImageCtx->PdbPointer);
ASMOutU32(EFI_PORT_IMAGE_EVENT, EFI_IMAGE_EVT_CMD_COMPLETE);
}
/* Note! Despite this saying relocate, it's always called immediately after
loading an image. So, treating it as a pure load event until we find
evidence of other usage. */
VOID
EFIAPI
PeCoffLoaderRelocateImageExtraAction(
IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
)
{
ASSERT(ImageContext != NULL);
#if ARCH_BITS == 32
vboxImageEvtEmitOne(ImageContext, EFI_IMAGE_EVT_CMD_START_LOAD32);
#else
vboxImageEvtEmitOne(ImageContext, EFI_IMAGE_EVT_CMD_START_LOAD64);
#endif
}
VOID
EFIAPI
PeCoffLoaderUnloadImageExtraAction(
IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
)
{
ASSERT(ImageContext != NULL);
#if ARCH_BITS == 32
vboxImageEvtEmitOne(ImageContext, EFI_IMAGE_EVT_CMD_START_UNLOAD32);
#else
vboxImageEvtEmitOne(ImageContext, EFI_IMAGE_EVT_CMD_START_UNLOAD64);
#endif
}
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