/****************************************************************************** * * Module Name: dmdeferred - Disassembly of deferred AML opcodes * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2021, 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 #include #include #include #include #include #define _COMPONENT ACPI_CA_DISASSEMBLER ACPI_MODULE_NAME ("dmdeferred") /* Local prototypes */ static ACPI_STATUS AcpiDmDeferredParse ( ACPI_PARSE_OBJECT *Op, UINT8 *Aml, UINT32 AmlLength); /****************************************************************************** * * FUNCTION: AcpiDmParseDeferredOps * * PARAMETERS: Root - Root of the parse tree * * RETURN: Status * * DESCRIPTION: Parse the deferred opcodes (Methods, regions, etc.) * *****************************************************************************/ ACPI_STATUS AcpiDmParseDeferredOps ( ACPI_PARSE_OBJECT *Root) { const ACPI_OPCODE_INFO *OpInfo; ACPI_PARSE_OBJECT *Op = Root; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (DmParseDeferredOps); /* Traverse the entire parse tree */ while (Op) { OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); if (!(OpInfo->Flags & AML_DEFER)) { Op = AcpiPsGetDepthNext (Root, Op); continue; } /* Now we know we have a deferred opcode */ switch (Op->Common.AmlOpcode) { case AML_METHOD_OP: case AML_BUFFER_OP: case AML_PACKAGE_OP: case AML_VARIABLE_PACKAGE_OP: Status = AcpiDmDeferredParse ( Op, Op->Named.Data, Op->Named.Length); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } break; /* We don't need to do anything for these deferred opcodes */ case AML_REGION_OP: case AML_DATA_REGION_OP: case AML_CREATE_QWORD_FIELD_OP: case AML_CREATE_DWORD_FIELD_OP: case AML_CREATE_WORD_FIELD_OP: case AML_CREATE_BYTE_FIELD_OP: case AML_CREATE_BIT_FIELD_OP: case AML_CREATE_FIELD_OP: case AML_BANK_FIELD_OP: break; default: ACPI_ERROR ((AE_INFO, "Unhandled deferred AML opcode [0x%.4X]", Op->Common.AmlOpcode)); break; } Op = AcpiPsGetDepthNext (Root, Op); } return_ACPI_STATUS (AE_OK); } /****************************************************************************** * * FUNCTION: AcpiDmDeferredParse * * PARAMETERS: Op - Root Op of the deferred opcode * Aml - Pointer to the raw AML * AmlLength - Length of the AML * * RETURN: Status * * DESCRIPTION: Parse one deferred opcode * (Methods, operation regions, etc.) * *****************************************************************************/ static ACPI_STATUS AcpiDmDeferredParse ( ACPI_PARSE_OBJECT *Op, UINT8 *Aml, UINT32 AmlLength) { ACPI_WALK_STATE *WalkState; ACPI_STATUS Status; ACPI_PARSE_OBJECT *SearchOp; ACPI_PARSE_OBJECT *StartOp; ACPI_PARSE_OBJECT *NewRootOp; ACPI_PARSE_OBJECT *ExtraOp; ACPI_FUNCTION_TRACE (DmDeferredParse); if (!Aml || !AmlLength) { return_ACPI_STATUS (AE_OK); } ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Parsing deferred opcode %s [%4.4s]\n", Op->Common.AmlOpName, (char *) &Op->Named.Name)); /* Need a new walk state to parse the AML */ WalkState = AcpiDsCreateWalkState (0, Op, NULL, NULL); if (!WalkState) { return_ACPI_STATUS (AE_NO_MEMORY); } Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, Aml, AmlLength, NULL, ACPI_IMODE_LOAD_PASS1); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Parse the AML for this deferred opcode */ WalkState->ParseFlags &= ~ACPI_PARSE_DELETE_TREE; WalkState->ParseFlags |= ACPI_PARSE_DISASSEMBLE; Status = AcpiPsParseAml (WalkState); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS(Status); } StartOp = (Op->Common.Value.Arg)->Common.Next; SearchOp = StartOp; while (SearchOp) { SearchOp = AcpiPsGetDepthNext (StartOp, SearchOp); } /* * For Buffer and Package opcodes, link the newly parsed subtree * into the main parse tree */ switch (Op->Common.AmlOpcode) { case AML_BUFFER_OP: case AML_PACKAGE_OP: case AML_VARIABLE_PACKAGE_OP: switch (Op->Common.AmlOpcode) { case AML_PACKAGE_OP: ExtraOp = Op->Common.Value.Arg; NewRootOp = ExtraOp->Common.Next; ACPI_FREE (ExtraOp); break; case AML_VARIABLE_PACKAGE_OP: case AML_BUFFER_OP: default: NewRootOp = Op->Common.Value.Arg; break; } Op->Common.Value.Arg = NewRootOp->Common.Value.Arg; /* Must point all parents to the main tree */ StartOp = Op; SearchOp = StartOp; while (SearchOp) { if (SearchOp->Common.Parent == NewRootOp) { SearchOp->Common.Parent = Op; } SearchOp = AcpiPsGetDepthNext (StartOp, SearchOp); } ACPI_FREE (NewRootOp); break; default: break; } return_ACPI_STATUS (AE_OK); }