/******************************************************************************* * * Module Name: dmopcode - AML disassembler, specific AML opcodes * ******************************************************************************/ /* * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * 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. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * 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 MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES. */ #include #include #include #include #include #include #include #include #ifdef ACPI_DISASSEMBLER #define _COMPONENT ACPI_CA_DEBUGGER ACPI_MODULE_NAME ("dmopcode") /* Local prototypes */ static void AcpiDmMatchKeyword ( ACPI_PARSE_OBJECT *Op); /******************************************************************************* * * FUNCTION: AcpiDmDisplayTargetPathname * * PARAMETERS: Op - Parse object * * RETURN: None * * DESCRIPTION: For AML opcodes that have a target operand, display the full * pathname for the target, in a comment field. Handles Return() * statements also. * ******************************************************************************/ void AcpiDmDisplayTargetPathname ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *NextOp; ACPI_PARSE_OBJECT *PrevOp = NULL; char *Pathname; const ACPI_OPCODE_INFO *OpInfo; if (Op->Common.AmlOpcode == AML_RETURN_OP) { PrevOp = Op->Asl.Value.Arg; } else { OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); if (!(OpInfo->Flags & AML_HAS_TARGET)) { return; } /* Target is the last Op in the arg list */ NextOp = Op->Asl.Value.Arg; while (NextOp) { PrevOp = NextOp; NextOp = PrevOp->Asl.Next; } } if (!PrevOp) { return; } /* We must have a namepath AML opcode */ if (PrevOp->Asl.AmlOpcode != AML_INT_NAMEPATH_OP) { return; } /* A null string is the "no target specified" case */ if (!PrevOp->Asl.Value.String) { return; } /* No node means "unresolved external reference" */ if (!PrevOp->Asl.Node) { AcpiOsPrintf (" /* External reference */"); return; } /* Ignore if path is already from the root */ if (*PrevOp->Asl.Value.String == '\\') { return; } /* Now: we can get the full pathname */ Pathname = AcpiNsGetExternalPathname (PrevOp->Asl.Node); if (!Pathname) { return; } AcpiOsPrintf (" /* %s */", Pathname); ACPI_FREE (Pathname); } /******************************************************************************* * * FUNCTION: AcpiDmNotifyDescription * * PARAMETERS: Op - Name() parse object * * RETURN: None * * DESCRIPTION: Emit a description comment for the value associated with a * Notify() operator. * ******************************************************************************/ void AcpiDmNotifyDescription ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *NextOp; ACPI_NAMESPACE_NODE *Node; UINT8 NotifyValue; UINT8 Type = ACPI_TYPE_ANY; /* The notify value is the second argument */ NextOp = Op->Asl.Value.Arg; NextOp = NextOp->Asl.Next; switch (NextOp->Common.AmlOpcode) { case AML_ZERO_OP: case AML_ONE_OP: NotifyValue = (UINT8) NextOp->Common.AmlOpcode; break; case AML_BYTE_OP: NotifyValue = (UINT8) NextOp->Asl.Value.Integer; break; default: return; } /* * Attempt to get the namespace node so we can determine the object type. * Some notify values are dependent on the object type (Device, Thermal, * or Processor). */ Node = Op->Asl.Node; if (Node) { Type = Node->Type; } AcpiOsPrintf (" // %s", AcpiUtGetNotifyName (NotifyValue, Type)); } /******************************************************************************* * * FUNCTION: AcpiDmPredefinedDescription * * PARAMETERS: Op - Name() parse object * * RETURN: None * * DESCRIPTION: Emit a description comment for a predefined ACPI name. * Used for iASL compiler only. * ******************************************************************************/ void AcpiDmPredefinedDescription ( ACPI_PARSE_OBJECT *Op) { #ifdef ACPI_ASL_COMPILER const AH_PREDEFINED_NAME *Info; char *NameString; int LastCharIsDigit; int LastCharsAreHex; if (!Op) { return; } /* Ensure that the comment field is emitted only once */ if (Op->Common.DisasmFlags & ACPI_PARSEOP_PREDEF_CHECKED) { return; } Op->Common.DisasmFlags |= ACPI_PARSEOP_PREDEF_CHECKED; /* Predefined name must start with an underscore */ NameString = ACPI_CAST_PTR (char, &Op->Named.Name); if (NameString[0] != '_') { return; } /* * Check for the special ACPI names: * _ACd, _ALd, _EJd, _Exx, _Lxx, _Qxx, _Wxx, _T_a * (where d=decimal_digit, x=hex_digit, a=anything) * * Convert these to the generic name for table lookup. * Note: NameString is guaranteed to be upper case here. */ LastCharIsDigit = (isdigit ((int) NameString[3])); /* d */ LastCharsAreHex = (isxdigit ((int) NameString[2]) && /* xx */ isxdigit ((int) NameString[3])); switch (NameString[1]) { case 'A': if ((NameString[2] == 'C') && (LastCharIsDigit)) { NameString = "_ACx"; } else if ((NameString[2] == 'L') && (LastCharIsDigit)) { NameString = "_ALx"; } break; case 'E': if ((NameString[2] == 'J') && (LastCharIsDigit)) { NameString = "_EJx"; } else if (LastCharsAreHex) { NameString = "_Exx"; } break; case 'L': if (LastCharsAreHex) { NameString = "_Lxx"; } break; case 'Q': if (LastCharsAreHex) { NameString = "_Qxx"; } break; case 'T': if (NameString[2] == '_') { NameString = "_T_x"; } break; case 'W': if (LastCharsAreHex) { NameString = "_Wxx"; } break; default: break; } /* Match the name in the info table */ Info = AcpiAhMatchPredefinedName (NameString); if (Info) { AcpiOsPrintf (" // %4.4s: %s", NameString, ACPI_CAST_PTR (char, Info->Description)); } #endif return; } /******************************************************************************* * * FUNCTION: AcpiDmFieldPredefinedDescription * * PARAMETERS: Op - Parse object * * RETURN: None * * DESCRIPTION: Emit a description comment for a resource descriptor tag * (which is a predefined ACPI name.) Used for iASL compiler only. * ******************************************************************************/ void AcpiDmFieldPredefinedDescription ( ACPI_PARSE_OBJECT *Op) { #ifdef ACPI_ASL_COMPILER ACPI_PARSE_OBJECT *IndexOp; char *Tag; const ACPI_OPCODE_INFO *OpInfo; const AH_PREDEFINED_NAME *Info; if (!Op) { return; } /* Ensure that the comment field is emitted only once */ if (Op->Common.DisasmFlags & ACPI_PARSEOP_PREDEF_CHECKED) { return; } Op->Common.DisasmFlags |= ACPI_PARSEOP_PREDEF_CHECKED; /* * Op must be one of the Create* operators: CreateField, CreateBitField, * CreateByteField, CreateWordField, CreateDwordField, CreateQwordField */ OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); if (!(OpInfo->Flags & AML_CREATE)) { return; } /* Second argument is the Index argument */ IndexOp = Op->Common.Value.Arg; IndexOp = IndexOp->Common.Next; /* Index argument must be a namepath */ if (IndexOp->Common.AmlOpcode != AML_INT_NAMEPATH_OP) { return; } /* Major cheat: We previously put the Tag ptr in the Node field */ Tag = ACPI_CAST_PTR (char, IndexOp->Common.Node); if (!Tag) { return; } /* Match the name in the info table */ Info = AcpiAhMatchPredefinedName (Tag); if (Info) { AcpiOsPrintf (" // %4.4s: %s", Tag, ACPI_CAST_PTR (char, Info->Description)); } #endif return; } /******************************************************************************* * * FUNCTION: AcpiDmMethodFlags * * PARAMETERS: Op - Method Object to be examined * * RETURN: None * * DESCRIPTION: Decode control method flags * ******************************************************************************/ void AcpiDmMethodFlags ( ACPI_PARSE_OBJECT *Op) { UINT32 Flags; UINT32 Args; /* The next Op contains the flags */ Op = AcpiPsGetDepthNext (NULL, Op); Flags = (UINT8) Op->Common.Value.Integer; Args = Flags & 0x07; /* Mark the Op as completed */ Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; /* 1) Method argument count */ AcpiOsPrintf (", %u, ", Args); /* 2) Serialize rule */ if (!(Flags & 0x08)) { AcpiOsPrintf ("Not"); } AcpiOsPrintf ("Serialized"); /* 3) SyncLevel */ if (Flags & 0xF0) { AcpiOsPrintf (", %u", Flags >> 4); } } /******************************************************************************* * * FUNCTION: AcpiDmFieldFlags * * PARAMETERS: Op - Field Object to be examined * * RETURN: None * * DESCRIPTION: Decode Field definition flags * ******************************************************************************/ void AcpiDmFieldFlags ( ACPI_PARSE_OBJECT *Op) { UINT32 Flags; Op = Op->Common.Next; Flags = (UINT8) Op->Common.Value.Integer; /* Mark the Op as completed */ Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; AcpiOsPrintf ("%s, ", AcpiGbl_AccessTypes [Flags & 0x07]); AcpiOsPrintf ("%s, ", AcpiGbl_LockRule [(Flags & 0x10) >> 4]); AcpiOsPrintf ("%s)", AcpiGbl_UpdateRules [(Flags & 0x60) >> 5]); } /******************************************************************************* * * FUNCTION: AcpiDmAddressSpace * * PARAMETERS: SpaceId - ID to be translated * * RETURN: None * * DESCRIPTION: Decode a SpaceId to an AddressSpaceKeyword * ******************************************************************************/ void AcpiDmAddressSpace ( UINT8 SpaceId) { if (SpaceId >= ACPI_NUM_PREDEFINED_REGIONS) { if (SpaceId == 0x7F) { AcpiOsPrintf ("FFixedHW, "); } else { AcpiOsPrintf ("0x%.2X, ", SpaceId); } } else { AcpiOsPrintf ("%s, ", AcpiGbl_RegionTypes [SpaceId]); } } /******************************************************************************* * * FUNCTION: AcpiDmRegionFlags * * PARAMETERS: Op - Object to be examined * * RETURN: None * * DESCRIPTION: Decode OperationRegion flags * ******************************************************************************/ void AcpiDmRegionFlags ( ACPI_PARSE_OBJECT *Op) { /* The next Op contains the SpaceId */ Op = AcpiPsGetDepthNext (NULL, Op); /* Mark the Op as completed */ Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; AcpiOsPrintf (", "); AcpiDmAddressSpace ((UINT8) Op->Common.Value.Integer); } /******************************************************************************* * * FUNCTION: AcpiDmMatchOp * * PARAMETERS: Op - Match Object to be examined * * RETURN: None * * DESCRIPTION: Decode Match opcode operands * ******************************************************************************/ void AcpiDmMatchOp ( ACPI_PARSE_OBJECT *Op) { ACPI_PARSE_OBJECT *NextOp; NextOp = AcpiPsGetDepthNext (NULL, Op); NextOp = NextOp->Common.Next; if (!NextOp) { /* Handle partial tree during single-step */ return; } /* Mark the two nodes that contain the encoding for the match keywords */ NextOp->Common.DisasmOpcode = ACPI_DASM_MATCHOP; NextOp = NextOp->Common.Next; NextOp = NextOp->Common.Next; NextOp->Common.DisasmOpcode = ACPI_DASM_MATCHOP; } /******************************************************************************* * * FUNCTION: AcpiDmMatchKeyword * * PARAMETERS: Op - Match Object to be examined * * RETURN: None * * DESCRIPTION: Decode Match opcode operands * ******************************************************************************/ static void AcpiDmMatchKeyword ( ACPI_PARSE_OBJECT *Op) { if (((UINT32) Op->Common.Value.Integer) > ACPI_MAX_MATCH_OPCODE) { AcpiOsPrintf ("/* Unknown Match Keyword encoding */"); } else { AcpiOsPrintf ("%s", ACPI_CAST_PTR (char, AcpiGbl_MatchOps[(ACPI_SIZE) Op->Common.Value.Integer])); } } /******************************************************************************* * * FUNCTION: AcpiDmDisassembleOneOp * * PARAMETERS: WalkState - Current walk info * Info - Parse tree walk info * Op - Op that is to be printed * * RETURN: None * * DESCRIPTION: Disassemble a single AML opcode * ******************************************************************************/ void AcpiDmDisassembleOneOp ( ACPI_WALK_STATE *WalkState, ACPI_OP_WALK_INFO *Info, ACPI_PARSE_OBJECT *Op) { const ACPI_OPCODE_INFO *OpInfo = NULL; UINT32 Offset; UINT32 Length; ACPI_PARSE_OBJECT *Child; ACPI_STATUS Status; UINT8 *Aml; const AH_DEVICE_ID *IdInfo; if (!Op) { AcpiOsPrintf (""); return; } switch (Op->Common.DisasmOpcode) { case ACPI_DASM_MATCHOP: AcpiDmMatchKeyword (Op); return; case ACPI_DASM_LNOT_SUFFIX: if (!AcpiGbl_CstyleDisassembly) { switch (Op->Common.AmlOpcode) { case AML_LEQUAL_OP: AcpiOsPrintf ("LNotEqual"); break; case AML_LGREATER_OP: AcpiOsPrintf ("LLessEqual"); break; case AML_LLESS_OP: AcpiOsPrintf ("LGreaterEqual"); break; default: break; } } Op->Common.DisasmOpcode = 0; Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; return; default: break; } OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); /* The op and arguments */ switch (Op->Common.AmlOpcode) { case AML_LNOT_OP: Child = Op->Common.Value.Arg; if ((Child->Common.AmlOpcode == AML_LEQUAL_OP) || (Child->Common.AmlOpcode == AML_LGREATER_OP) || (Child->Common.AmlOpcode == AML_LLESS_OP)) { Child->Common.DisasmOpcode = ACPI_DASM_LNOT_SUFFIX; Op->Common.DisasmOpcode = ACPI_DASM_LNOT_PREFIX; } else { AcpiOsPrintf ("%s", OpInfo->Name); } break; case AML_BYTE_OP: AcpiOsPrintf ("0x%2.2X", (UINT32) Op->Common.Value.Integer); break; case AML_WORD_OP: if (Op->Common.DisasmOpcode == ACPI_DASM_EISAID) { AcpiDmDecompressEisaId ((UINT32) Op->Common.Value.Integer); } else { AcpiOsPrintf ("0x%4.4X", (UINT32) Op->Common.Value.Integer); } break; case AML_DWORD_OP: if (Op->Common.DisasmOpcode == ACPI_DASM_EISAID) { AcpiDmDecompressEisaId ((UINT32) Op->Common.Value.Integer); } else { AcpiOsPrintf ("0x%8.8X", (UINT32) Op->Common.Value.Integer); } break; case AML_QWORD_OP: AcpiOsPrintf ("0x%8.8X%8.8X", ACPI_FORMAT_UINT64 (Op->Common.Value.Integer)); break; case AML_STRING_OP: AcpiUtPrintString (Op->Common.Value.String, ACPI_UINT16_MAX); /* For _HID/_CID strings, attempt to output a descriptive comment */ if (Op->Common.DisasmOpcode == ACPI_DASM_HID_STRING) { /* If we know about the ID, emit the description */ IdInfo = AcpiAhMatchHardwareId (Op->Common.Value.String); if (IdInfo) { AcpiOsPrintf (" /* %s */", IdInfo->Description); } } break; case AML_BUFFER_OP: /* * Determine the type of buffer. We can have one of the following: * * 1) ResourceTemplate containing Resource Descriptors. * 2) Unicode String buffer * 3) ASCII String buffer * 4) Raw data buffer (if none of the above) * * Since there are no special AML opcodes to differentiate these * types of buffers, we have to closely look at the data in the * buffer to determine the type. */ if (!AcpiGbl_NoResourceDisassembly) { Status = AcpiDmIsResourceTemplate (WalkState, Op); if (ACPI_SUCCESS (Status)) { Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE; AcpiOsPrintf ("ResourceTemplate"); break; } else if (Status == AE_AML_NO_RESOURCE_END_TAG) { AcpiOsPrintf ("/**** Is ResourceTemplate, but EndTag not at buffer end ****/ "); } } if (AcpiDmIsUuidBuffer (Op)) { Op->Common.DisasmOpcode = ACPI_DASM_UUID; AcpiOsPrintf ("ToUUID ("); } else if (AcpiDmIsUnicodeBuffer (Op)) { Op->Common.DisasmOpcode = ACPI_DASM_UNICODE; AcpiOsPrintf ("Unicode ("); } else if (AcpiDmIsStringBuffer (Op)) { Op->Common.DisasmOpcode = ACPI_DASM_STRING; AcpiOsPrintf ("Buffer"); } else if (AcpiDmIsPldBuffer (Op)) { Op->Common.DisasmOpcode = ACPI_DASM_PLD_METHOD; AcpiOsPrintf ("ToPLD ("); } else { Op->Common.DisasmOpcode = ACPI_DASM_BUFFER; AcpiOsPrintf ("Buffer"); } break; case AML_INT_NAMEPATH_OP: AcpiDmNamestring (Op->Common.Value.Name); break; case AML_INT_NAMEDFIELD_OP: Length = AcpiDmDumpName (Op->Named.Name); AcpiOsPrintf (",%*.s %u", (unsigned) (5 - Length), " ", (UINT32) Op->Common.Value.Integer); AcpiDmCommaIfFieldMember (Op); Info->BitOffset += (UINT32) Op->Common.Value.Integer; break; case AML_INT_RESERVEDFIELD_OP: /* Offset() -- Must account for previous offsets */ Offset = (UINT32) Op->Common.Value.Integer; Info->BitOffset += Offset; if (Info->BitOffset % 8 == 0) { AcpiOsPrintf ("Offset (0x%.2X)", ACPI_DIV_8 (Info->BitOffset)); } else { AcpiOsPrintf (" , %u", Offset); } AcpiDmCommaIfFieldMember (Op); break; case AML_INT_ACCESSFIELD_OP: case AML_INT_EXTACCESSFIELD_OP: AcpiOsPrintf ("AccessAs (%s, ", AcpiGbl_AccessTypes [(UINT32) (Op->Common.Value.Integer & 0x7)]); AcpiDmDecodeAttribute ((UINT8) (Op->Common.Value.Integer >> 8)); if (Op->Common.AmlOpcode == AML_INT_EXTACCESSFIELD_OP) { AcpiOsPrintf (" (0x%2.2X)", (unsigned) ((Op->Common.Value.Integer >> 16) & 0xFF)); } AcpiOsPrintf (")"); AcpiDmCommaIfFieldMember (Op); break; case AML_INT_CONNECTION_OP: /* * Two types of Connection() - one with a buffer object, the * other with a namestring that points to a buffer object. */ AcpiOsPrintf ("Connection ("); Child = Op->Common.Value.Arg; if (Child->Common.AmlOpcode == AML_INT_BYTELIST_OP) { AcpiOsPrintf ("\n"); Aml = Child->Named.Data; Length = (UINT32) Child->Common.Value.Integer; Info->Level += 1; Info->MappingOp = Op; Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE; AcpiDmResourceTemplate (Info, Op->Common.Parent, Aml, Length); Info->Level -= 1; AcpiDmIndent (Info->Level); } else { AcpiDmNamestring (Child->Common.Value.Name); } AcpiOsPrintf (")"); AcpiDmCommaIfFieldMember (Op); AcpiOsPrintf ("\n"); Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; /* for now, ignore in AcpiDmAscendingOp */ Child->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; break; case AML_INT_BYTELIST_OP: AcpiDmByteList (Info, Op); break; case AML_INT_METHODCALL_OP: Op = AcpiPsGetDepthNext (NULL, Op); Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; AcpiDmNamestring (Op->Common.Value.Name); break; default: /* Just get the opcode name and print it */ AcpiOsPrintf ("%s", OpInfo->Name); #ifdef ACPI_DEBUGGER if ((Op->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP) && (WalkState) && (WalkState->Results) && (WalkState->ResultCount)) { AcpiDbDecodeInternalObject ( WalkState->Results->Results.ObjDesc [ (WalkState->ResultCount - 1) % ACPI_RESULTS_FRAME_OBJ_NUM]); } #endif break; } } #endif /* ACPI_DISASSEMBLER */