diff options
Diffstat (limited to 'UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c')
| -rw-r--r-- | UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c new file mode 100644 index 0000000000..664472a667 --- /dev/null +++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c @@ -0,0 +1,192 @@ +/** @file
+ x64 CPU Exception Hanlder.
+
+ Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "CpuExceptionCommon.h"
+
+/**
+ Internal function to setup CPU exception handlers.
+
+**/
+VOID
+InternalSetupCpuExceptionHandlers (
+ VOID
+ )
+{
+ IA32_DESCRIPTOR IdtDescriptor;
+ UINTN IdtSize;
+ EXCEPTION_HANDLER_TEMPLATE_MAP TemplateMap;
+ UINT16 CodeSegment;
+ IA32_IDT_GATE_DESCRIPTOR *IdtEntry;
+ UINTN Index;
+ UINTN InterruptHandler;
+
+ //
+ // Read IDT descriptor and calculate IDT size
+ //
+ AsmReadIdtr (&IdtDescriptor);
+ IdtSize = (IdtDescriptor.Limit + 1) / sizeof (IA32_IDT_GATE_DESCRIPTOR);
+ if (IdtSize > CPU_EXCEPTION_NUM) {
+ //
+ // CPU exeption library only setup CPU_EXCEPTION_NUM exception handler at most
+ //
+ IdtSize = CPU_EXCEPTION_NUM;
+ }
+
+ //
+ // Use current CS as the segment selector of interrupt gate in IDT
+ //
+ CodeSegment = AsmReadCs ();
+ IdtEntry = (IA32_IDT_GATE_DESCRIPTOR *) IdtDescriptor.Base;
+
+ GetTemplateAddressMap (&TemplateMap);
+
+ for (Index = 0; Index < IdtSize; Index ++) {
+ InterruptHandler = TemplateMap.ExceptionStart + Index * TemplateMap.ExceptionStubHeaderSize;
+ IdtEntry[Index].Bits.OffsetLow = (UINT16)(UINTN)InterruptHandler;
+ IdtEntry[Index].Bits.OffsetHigh = (UINT16)((UINTN)InterruptHandler >> 16);
+ IdtEntry[Index].Bits.OffsetUpper = (UINT32)((UINTN)InterruptHandler >> 32);
+ IdtEntry[Index].Bits.Selector = CodeSegment;
+ IdtEntry[Index].Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
+ }
+}
+
+/**
+ Common exception handler.
+
+ @param ExceptionType Exception type.
+ @param SystemContext Pointer to EFI_SYSTEM_CONTEXT.
+**/
+VOID
+DumpCpuContent (
+ IN UINTN ExceptionType,
+ IN EFI_SYSTEM_CONTEXT SystemContext
+ )
+{
+ UINTN ImageBase;
+ UINTN EntryPoint;
+
+ InternalPrintMessage (
+ "!!!! X64 Exception Type - %016lx CPU Apic ID - %08x !!!!\n",
+ ExceptionType,
+ GetApicId ()
+ );
+ InternalPrintMessage (
+ "RIP - %016lx, CS - %016lx, RFLAGS - %016lx\n",
+ SystemContext.SystemContextX64->Rip,
+ SystemContext.SystemContextX64->Cs,
+ SystemContext.SystemContextX64->Rflags
+ );
+ if (mErrorCodeFlag & (1 << ExceptionType)) {
+ InternalPrintMessage (
+ "ExceptionData - %016lx\n",
+ SystemContext.SystemContextX64->ExceptionData
+ );
+ }
+ InternalPrintMessage (
+ "RAX - %016lx, RCX - %016lx, RDX - %016lx\n",
+ SystemContext.SystemContextX64->Rax,
+ SystemContext.SystemContextX64->Rcx,
+ SystemContext.SystemContextX64->Rdx
+ );
+ InternalPrintMessage (
+ "RBX - %016lx, RSP - %016lx, RBP - %016lx\n",
+ SystemContext.SystemContextX64->Rbx,
+ SystemContext.SystemContextX64->Rsp,
+ SystemContext.SystemContextX64->Rbp
+ );
+ InternalPrintMessage (
+ "RSI - %016lx, RDI - %016lx\n",
+ SystemContext.SystemContextX64->Rsi,
+ SystemContext.SystemContextX64->Rdi
+ );
+ InternalPrintMessage (
+ "R8 - %016lx, R9 - %016lx, R10 - %016lx\n",
+ SystemContext.SystemContextX64->R8,
+ SystemContext.SystemContextX64->R9,
+ SystemContext.SystemContextX64->R10
+ );
+ InternalPrintMessage (
+ "R11 - %016lx, R12 - %016lx, R13 - %016lx\n",
+ SystemContext.SystemContextX64->R11,
+ SystemContext.SystemContextX64->R12,
+ SystemContext.SystemContextX64->R13
+ );
+ InternalPrintMessage (
+ "R14 - %016lx, R15 - %016lx\n",
+ SystemContext.SystemContextX64->R14,
+ SystemContext.SystemContextX64->R15
+ );
+ InternalPrintMessage (
+ "DS - %016lx, ES - %016lx, FS - %016lx\n",
+ SystemContext.SystemContextX64->Ds,
+ SystemContext.SystemContextX64->Es,
+ SystemContext.SystemContextX64->Fs
+ );
+ InternalPrintMessage (
+ "GS - %016lx, SS - %016lx\n",
+ SystemContext.SystemContextX64->Gs,
+ SystemContext.SystemContextX64->Ss
+ );
+ InternalPrintMessage (
+ "CR0 - %016lx, CR2 - %016lx, CR3 - %016lx\n",
+ SystemContext.SystemContextX64->Cr0,
+ SystemContext.SystemContextX64->Cr2,
+ SystemContext.SystemContextX64->Cr3
+ );
+ InternalPrintMessage (
+ "CR4 - %016lx, CR8 - %016lx\n",
+ SystemContext.SystemContextX64->Cr4,
+ SystemContext.SystemContextX64->Cr8
+ );
+ InternalPrintMessage (
+ "DR0 - %016lx, DR1 - %016lx, DR2 - %016lx\n",
+ SystemContext.SystemContextX64->Dr0,
+ SystemContext.SystemContextX64->Dr1,
+ SystemContext.SystemContextX64->Dr2
+ );
+ InternalPrintMessage (
+ "DR3 - %016lx, DR6 - %016lx, DR7 - %016lx\n",
+ SystemContext.SystemContextX64->Dr3,
+ SystemContext.SystemContextX64->Dr6,
+ SystemContext.SystemContextX64->Dr7
+ );
+ InternalPrintMessage (
+ "GDTR - %016lx %016lx, LDTR - %016lx\n",
+ SystemContext.SystemContextX64->Gdtr[0],
+ SystemContext.SystemContextX64->Gdtr[1],
+ SystemContext.SystemContextX64->Ldtr
+ );
+ InternalPrintMessage (
+ "IDTR - %016lx %016lx, TR - %016lx\n",
+ SystemContext.SystemContextX64->Idtr[0],
+ SystemContext.SystemContextX64->Idtr[1],
+ SystemContext.SystemContextX64->Tr
+ );
+ InternalPrintMessage (
+ "FXSAVE_STATE - %016lx\n",
+ &SystemContext.SystemContextX64->FxSaveState
+ );
+
+ //
+ // Find module image base and module entry point by RIP
+ //
+ ImageBase = FindModuleImageBase (SystemContext.SystemContextX64->Rip, &EntryPoint);
+ if (ImageBase != 0) {
+ InternalPrintMessage (
+ " (ImageBase=%016lx, EntryPoint=%016lx) !!!!\n",
+ ImageBase,
+ EntryPoint
+ );
+ }
+}
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