diff options
Diffstat (limited to 'ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c')
| -rw-r--r-- | ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c | 83 |
1 files changed, 79 insertions, 4 deletions
diff --git a/ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c b/ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c index 27a09044b2..49d36ed693 100644 --- a/ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c +++ b/ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c @@ -2,7 +2,7 @@ Default exception handler
Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
- Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
+ Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -43,6 +43,82 @@ GetImageName ( OUT UINTN *PeCoffSizeOfHeaders
);
+STATIC
+VOID
+DescribeInstructionOrDataAbort (
+ IN CHAR8 *AbortType,
+ IN UINTN Iss
+ )
+{
+ CHAR8 *AbortCause;
+
+ switch (Iss & 0x3f) {
+ case 0x0: AbortCause = "Address size fault, zeroth level of translation or translation table base register"; break;
+ case 0x1: AbortCause = "Address size fault, first level"; break;
+ case 0x2: AbortCause = "Address size fault, second level"; break;
+ case 0x3: AbortCause = "Address size fault, third level"; break;
+ case 0x4: AbortCause = "Translation fault, zeroth level"; break;
+ case 0x5: AbortCause = "Translation fault, first level"; break;
+ case 0x6: AbortCause = "Translation fault, second level"; break;
+ case 0x7: AbortCause = "Translation fault, third level"; break;
+ case 0x9: AbortCause = "Access flag fault, first level"; break;
+ case 0xa: AbortCause = "Access flag fault, second level"; break;
+ case 0xb: AbortCause = "Access flag fault, third level"; break;
+ case 0xd: AbortCause = "Permission fault, first level"; break;
+ case 0xe: AbortCause = "Permission fault, second level"; break;
+ case 0xf: AbortCause = "Permission fault, third level"; break;
+ case 0x10: AbortCause = "Synchronous external abort"; break;
+ case 0x18: AbortCause = "Synchronous parity error on memory access"; break;
+ case 0x11: AbortCause = "Asynchronous external abort"; break;
+ case 0x19: AbortCause = "Asynchronous parity error on memory access"; break;
+ case 0x14: AbortCause = "Synchronous external abort on translation table walk, zeroth level"; break;
+ case 0x15: AbortCause = "Synchronous external abort on translation table walk, first level"; break;
+ case 0x16: AbortCause = "Synchronous external abort on translation table walk, second level"; break;
+ case 0x17: AbortCause = "Synchronous external abort on translation table walk, third level"; break;
+ case 0x1c: AbortCause = "Synchronous parity error on memory access on translation table walk, zeroth level"; break;
+ case 0x1d: AbortCause = "Synchronous parity error on memory access on translation table walk, first level"; break;
+ case 0x1e: AbortCause = "Synchronous parity error on memory access on translation table walk, second level"; break;
+ case 0x1f: AbortCause = "Synchronous parity error on memory access on translation table walk, third level"; break;
+ case 0x21: AbortCause = "Alignment fault"; break;
+ case 0x22: AbortCause = "Debug event"; break;
+ case 0x30: AbortCause = "TLB conflict abort"; break;
+ case 0x33:
+ case 0x34: AbortCause = "IMPLEMENTATION DEFINED"; break;
+ case 0x35:
+ case 0x36: AbortCause = "Domain fault"; break;
+ default: AbortCause = ""; break;
+ }
+
+ DEBUG ((EFI_D_ERROR, "\n%a: %a\n", AbortType, AbortCause));
+}
+
+STATIC
+VOID
+DescribeExceptionSyndrome (
+ IN UINT32 Esr
+ )
+{
+ CHAR8 *Message;
+ UINTN Ec;
+ UINTN Iss;
+
+ Ec = Esr >> 26;
+ Iss = Esr & 0x00ffffff;
+
+ switch (Ec) {
+ case 0x15: Message = "SVC executed in AArch64"; break;
+ case 0x20:
+ case 0x21: DescribeInstructionOrDataAbort ("Instruction abort", Iss); return;
+ case 0x22: Message = "PC alignment fault"; break;
+ case 0x23: Message = "SP alignment fault"; break;
+ case 0x24:
+ case 0x25: DescribeInstructionOrDataAbort ("Data abort", Iss); return;
+ default: return;
+ }
+
+ DEBUG ((EFI_D_ERROR, "\n %a \n", Message));
+}
+
/**
This is the default action to take on an unexpected exception
@@ -61,7 +137,7 @@ DefaultExceptionHandler ( CHAR8 Buffer[100];
UINTN CharCount;
- CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"\n\n%a Exception: \n", gExceptionTypeString[ExceptionType]);
+ CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"\n\n%a Exception at 0x%016lx\n", gExceptionTypeString[ExceptionType], SystemContext.SystemContextAArch64->ELR);
SerialPortWrite ((UINT8 *) Buffer, CharCount);
DEBUG_CODE_BEGIN ();
@@ -106,7 +182,6 @@ DefaultExceptionHandler ( 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 ));
- DEBUG ((EFI_D_ERROR, "\n"));
+ DescribeExceptionSyndrome (SystemContext.SystemContextAArch64->ESR);
ASSERT (FALSE);
}
-
|