/******************************************************************************
*
* Module Name: aetables - ACPI table setup/install for acpiexec utility
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2023, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* documentation and/or other materials provided with distribution. In
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* provision in the documentation and/or other materials provided with the
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* ensure that the distribution and export/re-export of the software is in
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* any of its subsidiaries will export/re-export any technical data, process,
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************
*
* Alternatively, you may choose to be licensed under the terms of the
* following license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Alternatively, you may choose to be licensed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
*****************************************************************************/
#include "aecommon.h"
#include "aetables.h"
#define _COMPONENT ACPI_TOOLS
ACPI_MODULE_NAME ("aetables")
/* Local prototypes */
static void
AeInitializeTableHeader (
ACPI_TABLE_HEADER *Header,
char *Signature,
UINT32 Length);
void
AeTableOverride (
ACPI_TABLE_HEADER *ExistingTable,
ACPI_TABLE_HEADER **NewTable);
/* User table (DSDT) */
static ACPI_TABLE_HEADER *DsdtToInstallOverride;
/* Non-AML tables that are constructed locally and installed */
static ACPI_TABLE_RSDP LocalRSDP;
static ACPI_TABLE_FACS LocalFACS;
static ACPI_TABLE_HEADER LocalTEST;
static ACPI_TABLE_HEADER LocalBADTABLE;
/*
* We need a local FADT so that the hardware subcomponent will function,
* even though the underlying OSD HW access functions don't do anything.
*/
static ACPI_TABLE_FADT LocalFADT;
/*
* Use XSDT so that both 32- and 64-bit versions of this utility will
* function automatically.
*/
static ACPI_TABLE_XSDT *LocalXSDT;
#define BASE_XSDT_TABLES 9
#define BASE_XSDT_SIZE ((BASE_XSDT_TABLES) * sizeof (UINT64))
#define ACPI_MAX_INIT_TABLES (32)
/******************************************************************************
*
* FUNCTION: AeTableOverride
*
* DESCRIPTION: Local implementation of AcpiOsTableOverride.
* Exercise the override mechanism
*
*****************************************************************************/
void
AeTableOverride (
ACPI_TABLE_HEADER *ExistingTable,
ACPI_TABLE_HEADER **NewTable)
{
if (!AcpiGbl_LoadTestTables)
{
*NewTable = NULL;
return;
}
/* This code exercises the table override mechanism in the core */
if (ACPI_COMPARE_NAMESEG (ExistingTable->Signature, ACPI_SIG_DSDT))
{
*NewTable = DsdtToInstallOverride;
}
/* This code tests override of dynamically loaded tables */
else if (ACPI_COMPARE_NAMESEG (ExistingTable->Signature, "OEM9"))
{
*NewTable = ACPI_CAST_PTR (ACPI_TABLE_HEADER, Ssdt3Code);
}
}
/******************************************************************************
*
* FUNCTION: AeInitializeTableHeader
*
* PARAMETERS: Header - A valid standard ACPI table header
* Signature - Signature to insert
* Length - Length of the table
*
* RETURN: None. Header is modified.
*
* DESCRIPTION: Initialize the table header for a local ACPI table.
*
*****************************************************************************/
static void
AeInitializeTableHeader (
ACPI_TABLE_HEADER *Header,
char *Signature,
UINT32 Length)
{
ACPI_COPY_NAMESEG (Header->Signature, Signature);
Header->Length = Length;
Header->OemRevision = 0x1001;
memcpy (Header->OemId, "Intel ", ACPI_OEM_ID_SIZE);
memcpy (Header->OemTableId, "AcpiExec", ACPI_OEM_TABLE_ID_SIZE);
ACPI_COPY_NAMESEG (Header->AslCompilerId, "INTL");
Header->AslCompilerRevision = ACPI_CA_VERSION;
/* Set the checksum, must set to zero first */
Header->Checksum = 0;
Header->Checksum = (UINT8) -AcpiUtChecksum (
(void *) Header, Header->Length);
}
/******************************************************************************
*
* FUNCTION: AeBuildLocalTables
*
* PARAMETERS: TableCount - Number of tables on the command line
* ListHead - List of actual tables from files
*
* RETURN: Status
*
* DESCRIPTION: Build a complete ACPI table chain, with a local RSDP, XSDT,
* FADT, and several other test tables.
*
*****************************************************************************/
ACPI_STATUS
AeBuildLocalTables (
ACPI_NEW_TABLE_DESC *ListHead)
{
UINT32 TableCount = 1;
ACPI_PHYSICAL_ADDRESS DsdtAddress = 0;
UINT32 XsdtSize;
ACPI_NEW_TABLE_DESC *NextTable;
UINT32 NextIndex;
ACPI_TABLE_FADT *ExternalFadt = NULL;
/*
* Update the table count. For the DSDT, it is not put into the XSDT.
* For the FADT, this table is already accounted for since we usually
* install a local FADT.
*/
NextTable = ListHead;
while (NextTable)
{
if (!ACPI_COMPARE_NAMESEG (NextTable->Table->Signature, ACPI_SIG_DSDT) &&
!ACPI_COMPARE_NAMESEG (NextTable->Table->Signature, ACPI_SIG_FADT))
{
TableCount++;
}
NextTable = NextTable->Next;
}
XsdtSize = (((TableCount + 1) * sizeof (UINT64)) +
sizeof (ACPI_TABLE_HEADER));
if (AcpiGbl_LoadTestTables)
{
XsdtSize += BASE_XSDT_SIZE;
}
/* Build an XSDT */
LocalXSDT = AcpiOsAllocate (XsdtSize);
if (!LocalXSDT)
{
return (AE_NO_MEMORY);
}
memset (LocalXSDT, 0, XsdtSize);
LocalXSDT->TableOffsetEntry[0] = ACPI_PTR_TO_PHYSADDR (&LocalFADT);
NextIndex = 1;
/*
* Install the user tables. The DSDT must be installed in the FADT.
* All other tables are installed directly into the XSDT.
*/
NextTable = ListHead;
while (NextTable)
{
/*
* Incoming DSDT or FADT are special cases. All other tables are
* just immediately installed into the XSDT.
*/
if (ACPI_COMPARE_NAMESEG (NextTable->Table->Signature, ACPI_SIG_DSDT))
{
if (DsdtAddress)
{
printf ("Already found a DSDT, only one allowed\n");
return (AE_ALREADY_EXISTS);
}
/* The incoming user table is a DSDT */
DsdtAddress = ACPI_PTR_TO_PHYSADDR (NextTable->Table);
DsdtToInstallOverride = NextTable->Table;
}
else if (ACPI_COMPARE_NAMESEG (NextTable->Table->Signature, ACPI_SIG_FADT))
{
ExternalFadt = ACPI_CAST_PTR (ACPI_TABLE_FADT, NextTable->Table);
LocalXSDT->TableOffsetEntry[0] = ACPI_PTR_TO_PHYSADDR (NextTable->Table);
}
else
{
/* Install the table in the XSDT */
LocalXSDT->TableOffsetEntry[NextIndex] =
ACPI_PTR_TO_PHYSADDR (NextTable->Table);
NextIndex++;
}
NextTable = NextTable->Next;
}
/* Install the optional extra local tables */
if (AcpiGbl_LoadTestTables)
{
LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&LocalTEST);
LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&LocalBADTABLE);
/* Install two SSDTs to test multiple table support */
LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&Ssdt1Code);
LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&Ssdt2Code);
/* Install the OEM1 table to test LoadTable */
LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&Oem1Code);
/* Install the OEMx table to test LoadTable */
LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&OemxCode);
/* Install the ECDT table to test _REG */
LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&EcdtCode);
/* Install two UEFIs to test multiple table support */
LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&Uefi1Code);
LocalXSDT->TableOffsetEntry[NextIndex++] = ACPI_PTR_TO_PHYSADDR (&Uefi2Code);
}
/* Build an RSDP. Contains a valid XSDT only, no RSDT */
memset (&LocalRSDP, 0, sizeof (ACPI_TABLE_RSDP));
ACPI_MAKE_RSDP_SIG (LocalRSDP.Signature);
memcpy (LocalRSDP.OemId, "Intel", 6);
LocalRSDP.Revision = 2;
LocalRSDP.XsdtPhysicalAddress = ACPI_PTR_TO_PHYSADDR (LocalXSDT);
LocalRSDP.Length = sizeof (ACPI_TABLE_RSDP);
/* Set checksums for both XSDT and RSDP */
AeInitializeTableHeader ((void *) LocalXSDT, ACPI_SIG_XSDT, XsdtSize);
LocalRSDP.Checksum = 0;
LocalRSDP.Checksum = (UINT8) -AcpiUtChecksum (
(void *) &LocalRSDP, ACPI_RSDP_CHECKSUM_LENGTH);
if (!DsdtAddress)
{
/* Use the local DSDT because incoming table(s) are all SSDT(s) */
DsdtAddress = ACPI_PTR_TO_PHYSADDR (LocalDsdtCode);
DsdtToInstallOverride = ACPI_CAST_PTR (ACPI_TABLE_HEADER, LocalDsdtCode);
}
/*
* Build an FADT. There are three options for the FADT:
* 1) Incoming external FADT specified on the command line
* 2) A "hardware reduced" local FADT
* 3) A fully featured local FADT
*/
memset (&LocalFADT, 0, sizeof (ACPI_TABLE_FADT));
if (ExternalFadt)
{
/*
* Use the external FADT, but we must update the DSDT/FACS
* addresses as well as the checksum
*/
ExternalFadt->Dsdt = (UINT32) DsdtAddress;
if (!AcpiGbl_ReducedHardware)
{
ExternalFadt->Facs = ACPI_PTR_TO_PHYSADDR (&LocalFACS);
}
/*
* If there room in the FADT for the XDsdt and XFacs 64-bit
* pointers, use them.
*/
if (ExternalFadt->Header.Length > ACPI_PTR_DIFF (
&ExternalFadt->XDsdt, ExternalFadt))
{
ExternalFadt->Dsdt = 0;
ExternalFadt->Facs = 0;
ExternalFadt->XDsdt = DsdtAddress;
if (!AcpiGbl_ReducedHardware)
{
ExternalFadt->XFacs = ACPI_PTR_TO_PHYSADDR (&LocalFACS);
}
}
/* Complete the external FADT with the checksum */
ExternalFadt->Header.Checksum = 0;
ExternalFadt->Header.Checksum = (UINT8) -AcpiUtChecksum (
(void *) ExternalFadt, ExternalFadt->Header.Length);
}
else if (AcpiGbl_UseHwReducedFadt)
{
memcpy (&LocalFADT, HwReducedFadtCode, ACPI_FADT_V5_SIZE);
LocalFADT.Dsdt = 0;
LocalFADT.XDsdt = DsdtAddress;
}
else
{
/*
* Build a local FADT so we can test the hardware/event init
*/
LocalFADT.Header.Revision = 5;
/* Setup FADT header and DSDT/FACS addresses */
LocalFADT.Dsdt = 0;
LocalFADT.Facs = 0;
LocalFADT.XDsdt = DsdtAddress;
LocalFADT.XFacs = ACPI_PTR_TO_PHYSADDR (&LocalFACS);
/* Miscellaneous FADT fields */
LocalFADT.Gpe0BlockLength = 0x20;
LocalFADT.Gpe0Block = 0x00003210;
LocalFADT.Gpe1BlockLength = 0x20;
LocalFADT.Gpe1Block = 0x0000BA98;
LocalFADT.Gpe1Base = 0x80;
LocalFADT.Pm1EventLength = 4;
LocalFADT.Pm1aEventBlock = 0x00001aaa;
LocalFADT.Pm1bEventBlock = 0x00001bbb;
LocalFADT.Pm1ControlLength = 2;
LocalFADT.Pm1aControlBlock = 0xB0;
LocalFADT.PmTimerLength = 4;
LocalFADT.PmTimerBlock = 0xA0;
LocalFADT.Pm2ControlBlock = 0xC0;
LocalFADT.Pm2ControlLength = 1;
/* Setup one example X-64 GAS field */
LocalFADT.XPm1bEventBlock.SpaceId = ACPI_ADR_SPACE_SYSTEM_IO;
LocalFADT.XPm1bEventBlock.Address = LocalFADT.Pm1bEventBlock;
LocalFADT.XPm1bEventBlock.BitWidth = (UINT8)
ACPI_MUL_8 (LocalFADT.Pm1EventLength);
}
AeInitializeTableHeader ((void *) &LocalFADT,
ACPI_SIG_FADT, sizeof (ACPI_TABLE_FADT));
/* Build a FACS */
memset (&LocalFACS, 0, sizeof (ACPI_TABLE_FACS));
ACPI_COPY_NAMESEG (LocalFACS.Signature, ACPI_SIG_FACS);
LocalFACS.Length = sizeof (ACPI_TABLE_FACS);
LocalFACS.GlobalLock = 0x11AA0011;
/* Build the optional local tables */
if (AcpiGbl_LoadTestTables)
{
/*
* Build a fake table [TEST] so that we make sure that the
* ACPICA core ignores it
*/
memset (&LocalTEST, 0, sizeof (ACPI_TABLE_HEADER));
ACPI_COPY_NAMESEG (LocalTEST.Signature, "TEST");
LocalTEST.Revision = 1;
LocalTEST.Length = sizeof (ACPI_TABLE_HEADER);
LocalTEST.Checksum = 0;
LocalTEST.Checksum = (UINT8) -AcpiUtChecksum (
(void *) &LocalTEST, LocalTEST.Length);
/*
* Build a fake table with a bad signature [BAD!] so that we make
* sure that the ACPICA core ignores it
*/
memset (&LocalBADTABLE, 0, sizeof (ACPI_TABLE_HEADER));
ACPI_COPY_NAMESEG (LocalBADTABLE.Signature, "BAD!");
LocalBADTABLE.Revision = 1;
LocalBADTABLE.Length = sizeof (ACPI_TABLE_HEADER);
LocalBADTABLE.Checksum = 0;
LocalBADTABLE.Checksum = (UINT8) -AcpiUtChecksum (
(void *) &LocalBADTABLE, LocalBADTABLE.Length);
}
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AeInstallTables
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Install the various ACPI tables
*
*****************************************************************************/
ACPI_STATUS
AeInstallTables (
void)
{
ACPI_STATUS Status;
ACPI_TABLE_HEADER Header;
ACPI_TABLE_HEADER *Table;
UINT32 i;
Status = AcpiInitializeTables (NULL, ACPI_MAX_INIT_TABLES, TRUE);
ACPI_CHECK_OK (AcpiInitializeTables, Status);
/*
* The following code is prepared to test the deferred table
* verification mechanism. When AcpiGbl_EnableTableValidation is set
* to FALSE by default, AcpiReallocateRootTable() sets it back to TRUE
* and triggers the deferred table verification mechanism accordingly.
*/
(void) AcpiReallocateRootTable ();
if (AcpiGbl_LoadTestTables)
{
/* Test multiple table/UEFI support. First, get the headers */
Status = AcpiGetTableHeader (ACPI_SIG_UEFI, 1, &Header);
ACPI_CHECK_OK (AcpiGetTableHeader, Status);
Status = AcpiGetTableHeader (ACPI_SIG_UEFI, 2, &Header);
ACPI_CHECK_OK (AcpiGetTableHeader, Status);
Status = AcpiGetTableHeader (ACPI_SIG_UEFI, 3, &Header);
ACPI_CHECK_STATUS (AcpiGetTableHeader, Status, AE_NOT_FOUND);
/* Now get the actual tables */
Status = AcpiGetTable (ACPI_SIG_UEFI, 1, &Table);
ACPI_CHECK_OK (AcpiGetTable, Status);
Status = AcpiGetTable (ACPI_SIG_UEFI, 2, &Table);
ACPI_CHECK_OK (AcpiGetTable, Status);
Status = AcpiGetTable (ACPI_SIG_UEFI, 3, &Table);
ACPI_CHECK_STATUS (AcpiGetTable, Status, AE_NOT_FOUND);
}
/* Check that we can get all of the ACPI tables */
for (i = 0; ; i++)
{
Status = AcpiGetTableByIndex (i, &Table);
if ((Status == AE_BAD_PARAMETER) || !Table)
{
break;
}
ACPI_CHECK_OK (AcpiGetTableByIndex, Status);
}
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AeLoadTables
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Load the definition block ACPI tables
*
*****************************************************************************/
ACPI_STATUS
AeLoadTables (
void)
{
ACPI_STATUS Status;
Status = AcpiLoadTables ();
ACPI_CHECK_OK (AcpiLoadTables, Status);
/*
* Test run-time control method installation. Do it twice to test code
* for an existing name.
*/
Status = AcpiInstallMethod (MethodCode);
ACPI_CHECK_OK (AcpiInstallMethod, Status);
Status = AcpiInstallMethod (MethodCode);
ACPI_CHECK_OK (AcpiInstallMethod, Status);
return (AE_OK);
}
/******************************************************************************
*
* FUNCTION: AcpiOsGetRootPointer
*
* PARAMETERS: Flags - not used
* Address - Where the root pointer is returned
*
* RETURN: Status
*
* DESCRIPTION: Return a local RSDP, used to dynamically load tables via the
* standard ACPI mechanism.
*
*****************************************************************************/
ACPI_PHYSICAL_ADDRESS
AcpiOsGetRootPointer (
void)
{
return (ACPI_PTR_TO_PHYSADDR (&LocalRSDP));
}