ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c

   1 /** @file
   2   Default exception handler
   3
   4   Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
   5   Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>
   6
   7   This program and the accompanying materials
   8   are licensed and made available under the terms and conditions of the BSD License
   9   which accompanies this distribution.  The full text of the license may be found at
  10   http://opensource.org/licenses/bsd-license.php
  11
  12   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15 **/
  16
  17 #include <Uefi.h>
  18 #include <Library/UefiLib.h>
  19 #include <Library/BaseLib.h>
  20 #include <Library/DebugLib.h>
  21 #include <Library/PeCoffGetEntryPointLib.h>
  22 #include <Library/PrintLib.h>
  23 #include <Library/ArmDisassemblerLib.h>
  24 #include <Library/SerialPortLib.h>
  25
  26 #include <Guid/DebugImageInfoTable.h>
  27 #include <Protocol/DebugSupport.h>
  28 #include <Protocol/LoadedImage.h>
  29
  30 STATIC CHAR8 *gExceptionTypeString[] = {
  31   "Synchronous",
  32   "IRQ",
  33   "FIQ",
  34   "SError"
  35 };
  36
  37 CHAR8 *
  38 GetImageName (
  39   IN  UINTN  FaultAddress,
  40   OUT UINTN  *ImageBase,
  41   OUT UINTN  *PeCoffSizeOfHeaders
  42   );
  43
  44 STATIC
  45 VOID
  46 DescribeInstructionOrDataAbort (
  47   IN CHAR8 *AbortType,
  48   IN UINTN Iss
  49   )
  50 {
  51   CHAR8 *AbortCause;
  52
  53   switch (Iss & 0x3f) {
  54     case 0x0: AbortCause = "Address size fault, zeroth level of translation or translation table base register";  break;
  55     case 0x1: AbortCause = "Address size fault, first level";  break;
  56     case 0x2: AbortCause = "Address size fault, second level";  break;
  57     case 0x3: AbortCause = "Address size fault, third level";  break;
  58     case 0x4: AbortCause = "Translation fault, zeroth level";  break;
  59     case 0x5: AbortCause = "Translation fault, first level";  break;
  60     case 0x6: AbortCause = "Translation fault, second level";  break;
  61     case 0x7: AbortCause = "Translation fault, third level";  break;
  62     case 0x9: AbortCause = "Access flag fault, first level";  break;
  63     case 0xa: AbortCause = "Access flag fault, second level";  break;
  64     case 0xb: AbortCause = "Access flag fault, third level";  break;
  65     case 0xd: AbortCause = "Permission fault, first level";  break;
  66     case 0xe: AbortCause = "Permission fault, second level";  break;
  67     case 0xf: AbortCause = "Permission fault, third level";  break;
  68     case 0x10: AbortCause = "Synchronous external abort";  break;
  69     case 0x18: AbortCause = "Synchronous parity error on memory access";  break;
  70     case 0x11: AbortCause = "Asynchronous external abort";  break;
  71     case 0x19: AbortCause = "Asynchronous parity error on memory access";  break;
  72     case 0x14: AbortCause = "Synchronous external abort on translation table walk, zeroth level";  break;
  73     case 0x15: AbortCause = "Synchronous external abort on translation table walk, first level";  break;
  74     case 0x16: AbortCause = "Synchronous external abort on translation table walk, second level";  break;
  75     case 0x17: AbortCause = "Synchronous external abort on translation table walk, third level";  break;
  76     case 0x1c: AbortCause = "Synchronous parity error on memory access on translation table walk, zeroth level";  break;
  77     case 0x1d: AbortCause = "Synchronous parity error on memory access on translation table walk, first level";  break;
  78     case 0x1e: AbortCause = "Synchronous parity error on memory access on translation table walk, second level";  break;
  79     case 0x1f: AbortCause = "Synchronous parity error on memory access on translation table walk, third level";  break;
  80     case 0x21: AbortCause = "Alignment fault";  break;
  81     case 0x22: AbortCause = "Debug event";  break;
  82     case 0x30: AbortCause = "TLB conflict abort";  break;
  83     case 0x33:
  84     case 0x34: AbortCause = "IMPLEMENTATION DEFINED";  break;
  85     case 0x35:
  86     case 0x36: AbortCause = "Domain fault"; break;
  87     default: AbortCause = ""; break;
  88   }
  89
  90   DEBUG ((EFI_D_ERROR, "\n%a: %a\n", AbortType, AbortCause));
  91 }
  92
  93 STATIC
  94 VOID
  95 DescribeExceptionSyndrome (
  96   IN UINT32 Esr
  97   )
  98 {
  99   CHAR8 *Message;
 100   UINTN Ec;
 101   UINTN Iss;
 102
 103   Ec = Esr >> 26;
 104   Iss = Esr & 0x00ffffff;
 105
 106   switch (Ec) {
 107     case 0x15: Message = "SVC executed in AArch64"; break;
 108     case 0x20:
 109     case 0x21: DescribeInstructionOrDataAbort ("Instruction abort", Iss); return;
 110     case 0x22: Message = "PC alignment fault"; break;
 111     case 0x23: Message = "SP alignment fault"; break;
 112     case 0x24:
 113     case 0x25: DescribeInstructionOrDataAbort ("Data abort", Iss); return;
 114     default: return;
 115   }
 116
 117   DEBUG ((EFI_D_ERROR, "\n %a \n", Message));
 118 }
 119
 120 /**
 121   This is the default action to take on an unexpected exception
 122
 123   Since this is exception context don't do anything crazy like try to allcoate memory.
 124
 125   @param  ExceptionType    Type of the exception
 126   @param  SystemContext    Register state at the time of the Exception
 127
 128 **/
 129 VOID
 130 DefaultExceptionHandler (
 131   IN     EFI_EXCEPTION_TYPE           ExceptionType,
 132   IN OUT EFI_SYSTEM_CONTEXT           SystemContext
 133   )
 134 {
 135   CHAR8  Buffer[100];
 136   UINTN  CharCount;
 137
 138   CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"\n\n%a Exception at 0x%016lx\n", gExceptionTypeString[ExceptionType], SystemContext.SystemContextAArch64->ELR);
 139   SerialPortWrite ((UINT8 *) Buffer, CharCount);
 140
 141   DEBUG_CODE_BEGIN ();
 142     CHAR8  *Pdb;
 143     UINTN  ImageBase;
 144     UINTN  PeCoffSizeOfHeader;
 145     Pdb = GetImageName (SystemContext.SystemContextAArch64->ELR, &ImageBase, &PeCoffSizeOfHeader);
 146     if (Pdb != NULL) {
 147       DEBUG ((EFI_D_ERROR, "%a loaded at 0x%016lx \n", Pdb, ImageBase));
 148     }
 149   DEBUG_CODE_END ();
 150
 151   DEBUG ((EFI_D_ERROR, "\n  X0 0x%016lx   X1 0x%016lx   X2 0x%016lx   X3 0x%016lx\n", SystemContext.SystemContextAArch64->X0, SystemContext.SystemContextAArch64->X1, SystemContext.SystemContextAArch64->X2, SystemContext.SystemContextAArch64->X3));
 152   DEBUG ((EFI_D_ERROR, "  X4 0x%016lx   X5 0x%016lx   X6 0x%016lx   X7 0x%016lx\n", SystemContext.SystemContextAArch64->X4, SystemContext.SystemContextAArch64->X5, SystemContext.SystemContextAArch64->X6, SystemContext.SystemContextAArch64->X7));
 153   DEBUG ((EFI_D_ERROR, "  X8 0x%016lx   X9 0x%016lx  X10 0x%016lx  X11 0x%016lx\n", SystemContext.SystemContextAArch64->X8, SystemContext.SystemContextAArch64->X9, SystemContext.SystemContextAArch64->X10, SystemContext.SystemContextAArch64->X11));
 154   DEBUG ((EFI_D_ERROR, " X12 0x%016lx  X13 0x%016lx  X14 0x%016lx  X15 0x%016lx\n", SystemContext.SystemContextAArch64->X12, SystemContext.SystemContextAArch64->X13, SystemContext.SystemContextAArch64->X14, SystemContext.SystemContextAArch64->X15));
 155   DEBUG ((EFI_D_ERROR, " X16 0x%016lx  X17 0x%016lx  X18 0x%016lx  X19 0x%016lx\n", SystemContext.SystemContextAArch64->X16, SystemContext.SystemContextAArch64->X17, SystemContext.SystemContextAArch64->X18, SystemContext.SystemContextAArch64->X19));
 156   DEBUG ((EFI_D_ERROR, " X20 0x%016lx  X21 0x%016lx  X22 0x%016lx  X23 0x%016lx\n", SystemContext.SystemContextAArch64->X20, SystemContext.SystemContextAArch64->X21, SystemContext.SystemContextAArch64->X22, SystemContext.SystemContextAArch64->X23));
 157   DEBUG ((EFI_D_ERROR, " X24 0x%016lx  X25 0x%016lx  X26 0x%016lx  X27 0x%016lx\n", SystemContext.SystemContextAArch64->X24, SystemContext.SystemContextAArch64->X25, SystemContext.SystemContextAArch64->X26, SystemContext.SystemContextAArch64->X27));
 158   DEBUG ((EFI_D_ERROR, " X28 0x%016lx   FP 0x%016lx   LR 0x%016lx  \n", SystemContext.SystemContextAArch64->X28, SystemContext.SystemContextAArch64->FP, SystemContext.SystemContextAArch64->LR));
 159
 160   /* We save these as 128bit numbers, but have to print them as two 64bit numbers,
 161      so swap the 64bit words to correctly represent a 128bit number.  */
 162   DEBUG ((EFI_D_ERROR, "\n  V0 0x%016lx %016lx   V1 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V0[1], SystemContext.SystemContextAArch64->V0[0], SystemContext.SystemContextAArch64->V1[1], SystemContext.SystemContextAArch64->V1[0]));
 163   DEBUG ((EFI_D_ERROR, "  V2 0x%016lx %016lx   V3 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V2[1], SystemContext.SystemContextAArch64->V2[0], SystemContext.SystemContextAArch64->V3[1], SystemContext.SystemContextAArch64->V3[0]));
 164   DEBUG ((EFI_D_ERROR, "  V4 0x%016lx %016lx   V5 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V4[1], SystemContext.SystemContextAArch64->V4[0], SystemContext.SystemContextAArch64->V5[1], SystemContext.SystemContextAArch64->V5[0]));
 165   DEBUG ((EFI_D_ERROR, "  V6 0x%016lx %016lx   V7 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V6[1], SystemContext.SystemContextAArch64->V6[0], SystemContext.SystemContextAArch64->V7[1], SystemContext.SystemContextAArch64->V7[0]));
 166   DEBUG ((EFI_D_ERROR, "  V8 0x%016lx %016lx   V9 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V8[1], SystemContext.SystemContextAArch64->V8[0], SystemContext.SystemContextAArch64->V9[1], SystemContext.SystemContextAArch64->V9[0]));
 167   DEBUG ((EFI_D_ERROR, " V10 0x%016lx %016lx  V11 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V10[1], SystemContext.SystemContextAArch64->V10[0], SystemContext.SystemContextAArch64->V11[1], SystemContext.SystemContextAArch64->V11[0]));
 168   DEBUG ((EFI_D_ERROR, " V12 0x%016lx %016lx  V13 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V12[1], SystemContext.SystemContextAArch64->V12[0], SystemContext.SystemContextAArch64->V13[1], SystemContext.SystemContextAArch64->V13[0]));
 169   DEBUG ((EFI_D_ERROR, " V14 0x%016lx %016lx  V15 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V14[1], SystemContext.SystemContextAArch64->V14[0], SystemContext.SystemContextAArch64->V15[1], SystemContext.SystemContextAArch64->V15[0]));
 170   DEBUG ((EFI_D_ERROR, " V16 0x%016lx %016lx  V17 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V16[1], SystemContext.SystemContextAArch64->V16[0], SystemContext.SystemContextAArch64->V17[1], SystemContext.SystemContextAArch64->V17[0]));
 171   DEBUG ((EFI_D_ERROR, " V18 0x%016lx %016lx  V19 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V18[1], SystemContext.SystemContextAArch64->V18[0], SystemContext.SystemContextAArch64->V19[1], SystemContext.SystemContextAArch64->V19[0]));
 172   DEBUG ((EFI_D_ERROR, " V20 0x%016lx %016lx  V21 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V20[1], SystemContext.SystemContextAArch64->V20[0], SystemContext.SystemContextAArch64->V21[1], SystemContext.SystemContextAArch64->V21[0]));
 173   DEBUG ((EFI_D_ERROR, " V22 0x%016lx %016lx  V23 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V22[1], SystemContext.SystemContextAArch64->V22[0], SystemContext.SystemContextAArch64->V23[1], SystemContext.SystemContextAArch64->V23[0]));
 174   DEBUG ((EFI_D_ERROR, " V24 0x%016lx %016lx  V25 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V24[1], SystemContext.SystemContextAArch64->V24[0], SystemContext.SystemContextAArch64->V25[1], SystemContext.SystemContextAArch64->V25[0]));
 175   DEBUG ((EFI_D_ERROR, " V26 0x%016lx %016lx  V27 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V26[1], SystemContext.SystemContextAArch64->V26[0], SystemContext.SystemContextAArch64->V27[1], SystemContext.SystemContextAArch64->V27[0]));
 176   DEBUG ((EFI_D_ERROR, " V28 0x%016lx %016lx  V29 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V28[1], SystemContext.SystemContextAArch64->V28[0], SystemContext.SystemContextAArch64->V29[1], SystemContext.SystemContextAArch64->V29[0]));
 177   DEBUG ((EFI_D_ERROR, " V30 0x%016lx %016lx  V31 0x%016lx %016lx\n", SystemContext.SystemContextAArch64->V30[1], SystemContext.SystemContextAArch64->V30[0], SystemContext.SystemContextAArch64->V31[1], SystemContext.SystemContextAArch64->V31[0]));
 178
 179   DEBUG ((EFI_D_ERROR, "\n  SP 0x%016lx  ELR 0x%016lx  SPSR 0x%08lx  FPSR 0x%08lx\n ESR 0x%08lx          FAR 0x%016lx\n", SystemContext.SystemContextAArch64->SP, SystemContext.SystemContextAArch64->ELR, SystemContext.SystemContextAArch64->SPSR, SystemContext.SystemContextAArch64->FPSR, SystemContext.SystemContextAArch64->ESR, SystemContext.SystemContextAArch64->FAR));
 180
 181   DEBUG ((EFI_D_ERROR, "\n ESR : EC 0x%02x  IL 0x%x  ISS 0x%08x\n", (SystemContext.SystemContextAArch64->ESR & 0xFC000000) >> 26, (SystemContext.SystemContextAArch64->ESR >> 25) & 0x1, SystemContext.SystemContextAArch64->ESR & 0x1FFFFFF ));
 182
 183   DescribeExceptionSyndrome (SystemContext.SystemContextAArch64->ESR);
 184   ASSERT (FALSE);
 185 }