VBoxAcpi.cpp revision ecb074924ed761fe89e91113482db5b7374441b0
/** @file
* VBoxAcpi - Virtual Box ACPI maniputation functionality.
*/
/*
* Copyright (C) 2009 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* 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.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
#if !defined(IN_RING3)
#endif
#ifdef VBOX_WITH_DYNAMIC_DSDT
/* vbox.dsl - input to generate proper DSDT on the fly */
#else
/* Statically compiled AML */
#endif
#ifdef VBOX_WITH_DYNAMIC_DSDT
void* *ppPtr,
{
//LogRel(("file is %s\n", g_abVboxDslSource));
*puDsdtLen = 0;
return 0;
}
void* pPtr)
{
return 0;
}
#else
{
int rc;
if (RT_FAILURE(rc))
return rc;
/**
* Now search AML for:
* AML_PROCESSOR_OP (UINT16) 0x5b83
* and replace whole block with
* AML_NOOP_OP (UINT16) 0xa3
* for VCPU not configured
*/
{
/*
* AML_PROCESSOR_OP
*
* DefProcessor := ProcessorOp PkgLength NameString ProcID
PblkAddr PblkLen ObjectList
* ProcessorOp := ExtOpPrefix 0x83
* ProcID := ByteData
* PblkAddr := DwordData
* PblkLen := ByteData
*/
{
/* false alarm, not named starting CP */
continue;
/* Maybe use ProcID instead? */
cAcpiCpus++;
continue;
/* Will fill unwanted CPU block with NOOPs */
/*
* See 18.2.4 Package Length Encoding in ACPI spec
* for full format
*/
("So far, we only understand simple package length"));
/* including AML_PROCESSOR_OP itself */
pAml[i+j] = 0xa3;
/* Can increase i by cBytes + 1, but not really worth it */
}
}
/* now recompute checksum, whole file byte sum must be 0 */
pAml[9] = 0;
return 0;
}
#endif
/* Two only public functions */
{
#ifdef VBOX_WITH_DYNAMIC_DSDT
#else
return 0;
#endif
}
{
#ifdef VBOX_WITH_DYNAMIC_DSDT
#else
/* Do nothing */
return 0;
#endif
}