1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/kernelhwsrv/kernel/eka/memmodel/epoc/direct/x86/xkernel.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,61 @@
     1.4 +// Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of the License "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// e32\memmodel\epoc\direct\x86\xkernel.cpp
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#include <x86_mem.h>
    1.22 +
    1.23 +/********************************************
    1.24 + * Thread
    1.25 + ********************************************/
    1.26 +
    1.27 +TInt DX86PlatThread::SetupContext(SThreadCreateInfo& anInfo)
    1.28 +	{
    1.29 +	return KErrNone;
    1.30 +	}
    1.31 +
    1.32 +DX86PlatProcess::DX86PlatProcess()
    1.33 +	{}
    1.34 +
    1.35 +DX86PlatProcess::~DX86PlatProcess()
    1.36 +	{
    1.37 +	__KTRACE_OPT(KMMU,Kern::Printf("DX86PlatProcess destruct"));
    1.38 +	DMemModelProcess::Destruct();
    1.39 +	}
    1.40 +
    1.41 +TBool Exc::IsMagic(TLinAddr /*anAddress*/)
    1.42 +//
    1.43 +// Return TRUE if anAddress is a 'magic' exception handling instruction
    1.44 +//
    1.45 +	{
    1.46 +	return EFalse;
    1.47 +	}
    1.48 +
    1.49 +void DThread::IpcExcHandler(TExcTrap* aTrap, DThread* aThread, TAny* aContext)
    1.50 +	{
    1.51 +	aThread->iIpcClient = 0;
    1.52 +	TIpcExcTrap& xt=*(TIpcExcTrap*)aTrap;
    1.53 +	TX86ExcInfo& info=*(TX86ExcInfo*)aContext;
    1.54 +	if (info.iExcId==EX86VectorPageFault)
    1.55 +		{
    1.56 +		TLinAddr va=(TLinAddr)info.iFaultAddress;
    1.57 +		if (va>=xt.iRemoteBase && (va-xt.iRemoteBase)<xt.iSize)
    1.58 +			xt.Exception(KErrBadDescriptor);	// problem accessing remote address - 'leave' so an error code will be returned
    1.59 +		if (xt.iLocalBase && va>=xt.iLocalBase && (va-xt.iLocalBase)<xt.iSize)
    1.60 +			NKern::UnlockSystem();		// problem accessing local address - return and panic current thread as usual
    1.61 +		}
    1.62 +	// otherwise return and fault kernel
    1.63 +	}
    1.64 +