ACPI_STATUS
AcpiTbInitializeFacs (
    void)
{

    /* If Hardware Reduced flag is set, there is no FACS */

    if (AcpiGbl_ReducedHardware)
    {
        AcpiGbl_FACS = NULL;
        return (AE_OK);
    }

    (void) AcpiGetTableByIndex (ACPI_TABLE_INDEX_FACS,
                ACPI_CAST_INDIRECT_PTR (ACPI_TABLE_HEADER, &AcpiGbl_Facs32));
    (void) AcpiGetTableByIndex (ACPI_TABLE_INDEX_X_FACS,
                ACPI_CAST_INDIRECT_PTR (ACPI_TABLE_HEADER, &AcpiGbl_Facs64));

    if (AcpiGbl_Facs64 && (!AcpiGbl_Facs32 || !AcpiGbl_Use32BitFacsAddresses))
    {
        AcpiGbl_FACS = AcpiGbl_Facs64;
    }
    else if (AcpiGbl_Facs32)
    {
        AcpiGbl_FACS = AcpiGbl_Facs32;
    }

    /* If there is no FACS, just continue. There was already an error msg */

    return (AE_OK);
}

ACPI_STATUS
AcpiTbInitializeFacs (
    void)
{
    ACPI_TABLE_FACS         *Facs;


    /* If Hardware Reduced flag is set, there is no FACS */

    if (AcpiGbl_ReducedHardware)
    {
        AcpiGbl_FACS = NULL;
        return (AE_OK);
    }
    else if (AcpiGbl_FADT.XFacs &&
         (!AcpiGbl_FADT.Facs || !AcpiGbl_Use32BitFacsAddresses))
    {
        (void) AcpiGetTableByIndex (AcpiGbl_XFacsIndex,
            ACPI_CAST_INDIRECT_PTR (ACPI_TABLE_HEADER, &Facs));
        AcpiGbl_FACS = Facs;
    }
    else if (AcpiGbl_FADT.Facs)
    {
        (void) AcpiGetTableByIndex (AcpiGbl_FacsIndex,
            ACPI_CAST_INDIRECT_PTR (ACPI_TABLE_HEADER, &Facs));
        AcpiGbl_FACS = Facs;
    }

    /* If there is no FACS, just continue. There was already an error msg */

    return (AE_OK);
}

ACPI_STATUS
AcpiTbInitializeFacs (
    void)
{
    ACPI_STATUS             Status;


    Status = AcpiGetTableByIndex (ACPI_TABLE_INDEX_FACS,
                ACPI_CAST_INDIRECT_PTR (ACPI_TABLE_HEADER, &AcpiGbl_FACS));
    return (Status);
}

ACPI_STATUS
AcpiTbLoadTable (
    UINT32                  TableIndex,
    ACPI_NAMESPACE_NODE     *ParentNode)
{
    ACPI_TABLE_HEADER       *Table;
    ACPI_STATUS             Status;
    ACPI_OWNER_ID           OwnerId;


    ACPI_FUNCTION_TRACE (TbLoadTable);


    /*
     * Note: Now table is "INSTALLED", it must be validated before
     * using.
     */
    Status = AcpiGetTableByIndex (TableIndex, &Table);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    Status = AcpiNsLoadTable (TableIndex, ParentNode);

    /*
     * This case handles the legacy option that groups all module-level
     * code blocks together and defers execution until all of the tables
     * are loaded. Execute all of these blocks at this time.
     * Execute any module-level code that was detected during the table
     * load phase.
     *
     * Note: this option is deprecated and will be eliminated in the
     * future. Use of this option can cause problems with AML code that
     * depends upon in-order immediate execution of module-level code.
     */
    AcpiNsExecModuleCodeList ();

    /*
     * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is
     * responsible for discovering any new wake GPEs by running _PRW methods
     * that may have been loaded by this table.
     */
    Status = AcpiTbGetOwnerId (TableIndex, &OwnerId);
    if (ACPI_SUCCESS (Status))
    {
        AcpiEvUpdateGpes (OwnerId);
    }

    /* Invoke table handler */

    AcpiTbNotifyTable (ACPI_TABLE_EVENT_LOAD, Table);
    return_ACPI_STATUS (Status);
}

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);

    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);
}

ACPI_STATUS
AcpiTbLoadTable (
    UINT32                  TableIndex,
    ACPI_NAMESPACE_NODE     *ParentNode)
{
    ACPI_TABLE_HEADER       *Table;
    ACPI_STATUS             Status;
    ACPI_OWNER_ID           OwnerId;


    ACPI_FUNCTION_TRACE (TbLoadTable);


    /*
     * Note: Now table is "INSTALLED", it must be validated before
     * using.
     */
    Status = AcpiGetTableByIndex (TableIndex, &Table);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    Status = AcpiNsLoadTable (TableIndex, ParentNode);

    /* Execute any module-level code that was found in the table */

    if (!AcpiGbl_ParseTableAsTermList && AcpiGbl_GroupModuleLevelCode)
    {
        AcpiNsExecModuleCodeList ();
    }

    /*
     * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is
     * responsible for discovering any new wake GPEs by running _PRW methods
     * that may have been loaded by this table.
     */
    Status = AcpiTbGetOwnerId (TableIndex, &OwnerId);
    if (ACPI_SUCCESS (Status))
    {
        AcpiEvUpdateGpes (OwnerId);
    }

    /* Invoke table handler if present */

    if (AcpiGbl_TableHandler)
    {
        (void) AcpiGbl_TableHandler (ACPI_TABLE_EVENT_LOAD, Table,
            AcpiGbl_TableHandlerContext);
    }

    return_ACPI_STATUS (Status);
}

static PyObject *bits_acpi_get_table_by_index(PyObject *self, PyObject *args)
{
    U32 index;
    ACPI_TABLE_HEADER *table_header;

    if (!PyArg_ParseTuple(args, "I", &index))
        return NULL;

    if (acpica_init() != GRUB_ERR_NONE)
        return PyErr_Format(PyExc_RuntimeError, "ACPICA module failed to initialize.");

    if (ACPI_FAILURE(AcpiGetTableByIndex(index, &table_header)))
        return Py_BuildValue("");

    return Py_BuildValue("s#", table_header, table_header->Length);
}

ACPI_STATUS
AcpiTbInitializeFacs (
    void)
{
    ACPI_STATUS             Status;


    /* If Hardware Reduced flag is set, there is no FACS */

    if (AcpiGbl_ReducedHardware)
    {
        AcpiGbl_FACS = NULL;
        return (AE_OK);
    }

    Status = AcpiGetTableByIndex (ACPI_TABLE_INDEX_FACS,
                ACPI_CAST_INDIRECT_PTR (ACPI_TABLE_HEADER, &AcpiGbl_FACS));
    return (Status);
}

ACPI_STATUS
AcpiTbUnloadTable (
    UINT32                  TableIndex)
{
    ACPI_STATUS             Status = AE_OK;
    ACPI_TABLE_HEADER       *Table;


    ACPI_FUNCTION_TRACE (TbUnloadTable);


    /* Ensure the table is still loaded */

    if (!AcpiTbIsTableLoaded (TableIndex))
    {
        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    /* Invoke table handler */

    Status = AcpiGetTableByIndex (TableIndex, &Table);
    if (ACPI_SUCCESS (Status))
    {
        AcpiTbNotifyTable (ACPI_TABLE_EVENT_UNLOAD, Table);
    }

    /* Delete the portion of the namespace owned by this table */

    Status = AcpiTbDeleteNamespaceByOwner (TableIndex);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    (void) AcpiTbReleaseOwnerId (TableIndex);
    AcpiTbSetTableLoadedFlag (TableIndex, FALSE);
    return_ACPI_STATUS (Status);
}

ACPI_STATUS
AcpiDsEvalTableRegionOperands (
    ACPI_WALK_STATE         *WalkState,
    ACPI_PARSE_OBJECT       *Op)
{
    ACPI_STATUS             Status;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     **Operand;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_PARSE_OBJECT       *NextOp;
    ACPI_TABLE_HEADER       *Table;
    UINT32                  TableIndex;


    ACPI_FUNCTION_TRACE_PTR (DsEvalTableRegionOperands, Op);


    /*
     * This is where we evaluate the Signature string, OemId string,
     * and OemTableId string of the Data Table Region declaration
     */
    Node =  Op->Common.Node;

    /* NextOp points to Signature string op */

    NextOp = Op->Common.Value.Arg;

    /*
     * Evaluate/create the Signature string, OemId string,
     * and OemTableId string operands
     */
    Status = AcpiDsCreateOperands (WalkState, NextOp);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    Operand = &WalkState->Operands[0];

    /*
     * Resolve the Signature string, OemId string,
     * and OemTableId string operands
     */
    Status = AcpiExResolveOperands (Op->Common.AmlOpcode,
                ACPI_WALK_OPERANDS, WalkState);
    if (ACPI_FAILURE (Status))
    {
        goto Cleanup;
    }

    /* Find the ACPI table */

    Status = AcpiTbFindTable (
                Operand[0]->String.Pointer,
                Operand[1]->String.Pointer,
                Operand[2]->String.Pointer, &TableIndex);
    if (ACPI_FAILURE (Status))
    {
        if (Status == AE_NOT_FOUND)
        {
            ACPI_ERROR ((AE_INFO,
                "ACPI Table [%4.4s] OEM:(%s, %s) not found in RSDT/XSDT",
                Operand[0]->String.Pointer,
                Operand[1]->String.Pointer,
                Operand[2]->String.Pointer));
        }
        goto Cleanup;
    }

    Status = AcpiGetTableByIndex (TableIndex, &Table);
    if (ACPI_FAILURE (Status))
    {
        goto Cleanup;
    }

    ObjDesc = AcpiNsGetAttachedObject (Node);
    if (!ObjDesc)
    {
        Status = AE_NOT_EXIST;
        goto Cleanup;
    }

    ObjDesc->Region.Address = ACPI_PTR_TO_PHYSADDR (Table);
    ObjDesc->Region.Length = Table->Length;

    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
        ObjDesc, ACPI_FORMAT_UINT64 (ObjDesc->Region.Address),
        ObjDesc->Region.Length));

    /* Now the address and length are valid for this opregion */

    ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID;

Cleanup:
    AcpiUtRemoveReference (Operand[0]);
    AcpiUtRemoveReference (Operand[1]);
    AcpiUtRemoveReference (Operand[2]);

    return_ACPI_STATUS (Status);
}

ACPI_STATUS
AcpiExUnloadTable (
    ACPI_OPERAND_OBJECT     *DdbHandle)
{
    ACPI_STATUS             Status = AE_OK;
    ACPI_OPERAND_OBJECT     *TableDesc = DdbHandle;
    UINT32                  TableIndex;
    ACPI_TABLE_HEADER       *Table;


    ACPI_FUNCTION_TRACE (ExUnloadTable);


    /*
     * Validate the handle
     * Although the handle is partially validated in AcpiExReconfiguration()
     * when it calls AcpiExResolveOperands(), the handle is more completely
     * validated here.
     *
     * Handle must be a valid operand object of type reference. Also, the
     * DdbHandle must still be marked valid (table has not been previously
     * unloaded)
     */
    if ((!DdbHandle) ||
        (ACPI_GET_DESCRIPTOR_TYPE (DdbHandle) != ACPI_DESC_TYPE_OPERAND) ||
        (DdbHandle->Common.Type != ACPI_TYPE_LOCAL_REFERENCE) ||
        (!(DdbHandle->Common.Flags & AOPOBJ_DATA_VALID)))
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    /* Get the table index from the DdbHandle */

    TableIndex = TableDesc->Reference.Value;

    /* Ensure the table is still loaded */

    if (!AcpiTbIsTableLoaded (TableIndex))
    {
        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    /* Invoke table handler if present */

    if (AcpiGbl_TableHandler)
    {
        Status = AcpiGetTableByIndex (TableIndex, &Table);
        if (ACPI_SUCCESS (Status))
        {
            (void) AcpiGbl_TableHandler (ACPI_TABLE_EVENT_UNLOAD, Table,
                        AcpiGbl_TableHandlerContext);
        }
    }

    /* Delete the portion of the namespace owned by this table */

    Status = AcpiTbDeleteNamespaceByOwner (TableIndex);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    (void) AcpiTbReleaseOwnerId (TableIndex);
    AcpiTbSetTableLoadedFlag (TableIndex, FALSE);

    /*
     * Invalidate the handle. We do this because the handle may be stored
     * in a named object and may not be actually deleted until much later.
     */
    DdbHandle->Common.Flags &= ~AOPOBJ_DATA_VALID;
    return_ACPI_STATUS (AE_OK);
}

//.........这里部分代码省略.........

        DdbHandle = AcpiUtCreateIntegerObject ((UINT64) 0);
        if (!DdbHandle)
        {
            return_ACPI_STATUS (AE_NO_MEMORY);
        }

        *ReturnDesc = DdbHandle;
        return_ACPI_STATUS (AE_OK);
    }

    /* Default nodes */

    StartNode = WalkState->ScopeInfo->Scope.Node;
    ParentNode = AcpiGbl_RootNode;

    /* RootPath (optional parameter) */

    if (Operand[3]->String.Length > 0)
    {
        /*
         * Find the node referenced by the RootPathString.  This is the
         * location within the namespace where the table will be loaded.
         */
        Status = AcpiNsGetNode (StartNode, Operand[3]->String.Pointer,
                    ACPI_NS_SEARCH_PARENT, &ParentNode);
        if (ACPI_FAILURE (Status))
        {
            return_ACPI_STATUS (Status);
        }
    }

    /* ParameterPath (optional parameter) */

    if (Operand[4]->String.Length > 0)
    {
        if ((Operand[4]->String.Pointer[0] != '\\') &&
            (Operand[4]->String.Pointer[0] != '^'))
        {
            /*
             * Path is not absolute, so it will be relative to the node
             * referenced by the RootPathString (or the NS root if omitted)
             */
            StartNode = ParentNode;
        }

        /* Find the node referenced by the ParameterPathString */

        Status = AcpiNsGetNode (StartNode, Operand[4]->String.Pointer,
                    ACPI_NS_SEARCH_PARENT, &ParameterNode);
        if (ACPI_FAILURE (Status))
        {
            return_ACPI_STATUS (Status);
        }
    }

    /* Load the table into the namespace */

    Status = AcpiExAddTable (TableIndex, ParentNode, &DdbHandle);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Parameter Data (optional) */

    if (ParameterNode)
    {
        /* Store the parameter data into the optional parameter object */

        Status = AcpiExStore (Operand[5],
                    ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, ParameterNode),
                    WalkState);
        if (ACPI_FAILURE (Status))
        {
            (void) AcpiExUnloadTable (DdbHandle);

            AcpiUtRemoveReference (DdbHandle);
            return_ACPI_STATUS (Status);
        }
    }

    Status = AcpiGetTableByIndex (TableIndex, &Table);
    if (ACPI_SUCCESS (Status))
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Dynamic OEM Table Load:"));
        AcpiTbPrintTableHeader (0, Table);
    }

    /* Invoke table handler if present */

    if (AcpiGbl_TableHandler)
    {
        (void) AcpiGbl_TableHandler (ACPI_TABLE_EVENT_LOAD, Table,
                    AcpiGbl_TableHandlerContext);
    }

    *ReturnDesc = DdbHandle;
    return_ACPI_STATUS  (Status);
}

ACPI_STATUS
AcpiDsEvalTableRegionOperands (
    ACPI_WALK_STATE         *WalkState,
    ACPI_PARSE_OBJECT       *Op)
{
    ACPI_STATUS             Status;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     **Operand;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_PARSE_OBJECT       *NextOp;
    UINT32                  TableIndex;
    ACPI_TABLE_HEADER       *Table;


    ACPI_FUNCTION_TRACE_PTR (DsEvalTableRegionOperands, Op);


    /*
     * This is where we evaluate the SignatureString and OemIDString
     * and OemTableIDString of the DataTableRegion declaration
     */
    Node =  Op->Common.Node;

    /* NextOp points to SignatureString op */

    NextOp = Op->Common.Value.Arg;

    /*
     * Evaluate/create the SignatureString and OemIDString
     * and OemTableIDString operands
     */
    Status = AcpiDsCreateOperands (WalkState, NextOp);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /*
     * Resolve the SignatureString and OemIDString
     * and OemTableIDString operands
     */
    Status = AcpiExResolveOperands (Op->Common.AmlOpcode,
                ACPI_WALK_OPERANDS, WalkState);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    Operand = &WalkState->Operands[0];

    /* Find the ACPI table */

    Status = AcpiTbFindTable (Operand[0]->String.Pointer,
                Operand[1]->String.Pointer, Operand[2]->String.Pointer,
                &TableIndex);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    AcpiUtRemoveReference (Operand[0]);
    AcpiUtRemoveReference (Operand[1]);
    AcpiUtRemoveReference (Operand[2]);

    Status = AcpiGetTableByIndex (TableIndex, &Table);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    ObjDesc = AcpiNsGetAttachedObject (Node);
    if (!ObjDesc)
    {
        return_ACPI_STATUS (AE_NOT_EXIST);
    }

    ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) ACPI_TO_INTEGER (Table);
    ObjDesc->Region.Length = Table->Length;

    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
        ObjDesc,
        ACPI_FORMAT_NATIVE_UINT (ObjDesc->Region.Address),
        ObjDesc->Region.Length));

    /* Now the address and length are valid for this opregion */

    ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID;

    return_ACPI_STATUS (Status);
}

ACPI_STATUS
AcpiDsInitializeObjects (
    UINT32                  TableIndex,
    ACPI_NAMESPACE_NODE     *StartNode)
{
    ACPI_STATUS             Status;
    ACPI_INIT_WALK_INFO     Info;
    ACPI_TABLE_HEADER       *Table;
    ACPI_OWNER_ID           OwnerId;


    ACPI_FUNCTION_TRACE (DsInitializeObjects);


    Status = AcpiTbGetOwnerId (TableIndex, &OwnerId);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
        "**** Starting initialization of namespace objects ****\n"));
    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "Parsing all Control Methods:"));

    /* Set all init info to zero */

    ACPI_MEMSET (&Info, 0, sizeof (ACPI_INIT_WALK_INFO));

    Info.OwnerId = OwnerId;
    Info.TableIndex = TableIndex;

    /* Walk entire namespace from the supplied root */

    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /*
     * We don't use AcpiWalkNamespace since we do not want to acquire
     * the namespace reader lock.
     */
    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, StartNode, ACPI_UINT32_MAX,
                ACPI_NS_WALK_UNLOCK, AcpiDsInitOneObject, NULL, &Info, NULL);
    if (ACPI_FAILURE (Status))
    {
        ACPI_EXCEPTION ((AE_INFO, Status, "During WalkNamespace"));
    }
    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);

    Status = AcpiGetTableByIndex (TableIndex, &Table);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
        "\nTable [%4.4s](id %4.4X) - %u Objects with %u Devices %u Methods %u Regions\n",
        Table->Signature, OwnerId, Info.ObjectCount,
        Info.DeviceCount, Info.MethodCount, Info.OpRegionCount));

    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
        "%u Methods, %u Regions\n", Info.MethodCount, Info.OpRegionCount));

    return_ACPI_STATUS (AE_OK);
}

ACPI_STATUS
AcpiNsExecuteTable (
    UINT32                  TableIndex,
    ACPI_NAMESPACE_NODE     *StartNode)
{
    ACPI_STATUS             Status;
    ACPI_TABLE_HEADER       *Table;
    ACPI_OWNER_ID           OwnerId;
    ACPI_EVALUATE_INFO      *Info = NULL;
    UINT32                  AmlLength;
    UINT8                   *AmlStart;
    ACPI_OPERAND_OBJECT     *MethodObj = NULL;


    ACPI_FUNCTION_TRACE (NsExecuteTable);


    Status = AcpiGetTableByIndex (TableIndex, &Table);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Table must consist of at least a complete header */

    if (Table->Length < sizeof (ACPI_TABLE_HEADER))
    {
        return_ACPI_STATUS (AE_BAD_HEADER);
    }

    AmlStart = (UINT8 *) Table + sizeof (ACPI_TABLE_HEADER);
    AmlLength = Table->Length - sizeof (ACPI_TABLE_HEADER);

    Status = AcpiTbGetOwnerId (TableIndex, &OwnerId);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Create, initialize, and link a new temporary method object */

    MethodObj = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD);
    if (!MethodObj)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    /* Allocate the evaluation information block */

    Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
    if (!Info)
    {
        Status = AE_NO_MEMORY;
        goto Cleanup;
    }

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_PARSE,
        "%s: Create table pseudo-method for [%4.4s] @%p, method %p\n",
        ACPI_GET_FUNCTION_NAME, Table->Signature, Table, MethodObj));

    MethodObj->Method.AmlStart = AmlStart;
    MethodObj->Method.AmlLength = AmlLength;
    MethodObj->Method.OwnerId = OwnerId;
    MethodObj->Method.InfoFlags |= ACPI_METHOD_MODULE_LEVEL;

    Info->PassNumber = ACPI_IMODE_EXECUTE;
    Info->Node = StartNode;
    Info->ObjDesc = MethodObj;
    Info->NodeFlags = Info->Node->Flags;
    Info->FullPathname = AcpiNsGetNormalizedPathname (Info->Node, TRUE);
    if (!Info->FullPathname)
    {
        Status = AE_NO_MEMORY;
        goto Cleanup;
    }

    Status = AcpiPsExecuteTable (Info);

Cleanup:
    if (Info)
    {
        ACPI_FREE (Info->FullPathname);
        Info->FullPathname = NULL;
    }
    ACPI_FREE (Info);
    AcpiUtRemoveReference (MethodObj);
    return_ACPI_STATUS (Status);
}

ACPI_STATUS
AcpiNsOneCompleteParse (
    UINT32                  PassNumber,
    UINT32                  TableIndex,
    ACPI_NAMESPACE_NODE     *StartNode)
{
    ACPI_PARSE_OBJECT       *ParseRoot;
    ACPI_STATUS             Status;
    UINT32                  AmlLength;
    UINT8                   *AmlStart;
    ACPI_WALK_STATE         *WalkState;
    ACPI_TABLE_HEADER       *Table;
    ACPI_OWNER_ID           OwnerId;


    ACPI_FUNCTION_TRACE (NsOneCompleteParse);


    Status = AcpiGetTableByIndex (TableIndex, &Table);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Table must consist of at least a complete header */

    if (Table->Length < sizeof (ACPI_TABLE_HEADER))
    {
        return_ACPI_STATUS (AE_BAD_HEADER);
    }

    AmlStart = (UINT8 *) Table + sizeof (ACPI_TABLE_HEADER);
    AmlLength = Table->Length - sizeof (ACPI_TABLE_HEADER);

    Status = AcpiTbGetOwnerId (TableIndex, &OwnerId);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Create and init a Root Node */

    ParseRoot = AcpiPsCreateScopeOp (AmlStart);
    if (!ParseRoot)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    /* Create and initialize a new walk state */

    WalkState = AcpiDsCreateWalkState (OwnerId, NULL, NULL, NULL);
    if (!WalkState)
    {
        AcpiPsFreeOp (ParseRoot);
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    Status = AcpiDsInitAmlWalk (WalkState, ParseRoot, NULL,
        AmlStart, AmlLength, NULL, (UINT8) PassNumber);
    if (ACPI_FAILURE (Status))
    {
        AcpiDsDeleteWalkState (WalkState);
        goto Cleanup;
    }

    /* Found OSDT table, enable the namespace override feature */

    if (ACPI_COMPARE_NAME(Table->Signature, ACPI_SIG_OSDT) &&
        PassNumber == ACPI_IMODE_LOAD_PASS1)
    {
        WalkState->NamespaceOverride = TRUE;
    }

    /* StartNode is the default location to load the table  */

    if (StartNode && StartNode != AcpiGbl_RootNode)
    {
        Status = AcpiDsScopeStackPush (
            StartNode, ACPI_TYPE_METHOD, WalkState);
        if (ACPI_FAILURE (Status))
        {
            AcpiDsDeleteWalkState (WalkState);
            goto Cleanup;
        }
    }

    /* Parse the AML */

    ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
        "*PARSE* pass %u parse\n", PassNumber));
    AcpiExEnterInterpreter ();
    Status = AcpiPsParseAml (WalkState);
    AcpiExExitInterpreter ();

Cleanup:
    AcpiPsDeleteParseTree (ParseRoot);
    return_ACPI_STATUS (Status);
}