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/** @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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