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Diffstat (limited to 'SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/ArchDebugSupport.c')
-rw-r--r--SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/ArchDebugSupport.c195
1 files changed, 9 insertions, 186 deletions
diff --git a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/ArchDebugSupport.c b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/ArchDebugSupport.c
index ab724ff3d6..52ed647a27 100644
--- a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/ArchDebugSupport.c
+++ b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/ArchDebugSupport.c
@@ -1,7 +1,7 @@
/** @file
- Public include file for Debug Port Library.
+ Supporting functions for IA32 architecture.
- Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2010 - 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
@@ -15,188 +15,6 @@
#include "DebugAgent.h"
/**
- Read the offset of FP / MMX / XMM registers by register index.
-
- @param[in] Index Register index.
- @param[out] Width Register width returned.
-
- @return Offset in register address range.
-
-**/
-UINT16
-ArchReadFxStatOffset (
- IN UINT8 Index,
- OUT UINT8 *Width
- )
-{
- if (Index < SOFT_DEBUGGER_REGISTER_ST0) {
- switch (Index) {
- case SOFT_DEBUGGER_REGISTER_FP_FCW:
- *Width = (UINT8) sizeof (UINT16);
- return (UINT16)OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, Fcw);
-
- case SOFT_DEBUGGER_REGISTER_FP_FSW:
- *Width = (UINT8) sizeof (UINT16);
- return (UINT16)OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, Fsw);
-
- case SOFT_DEBUGGER_REGISTER_FP_FTW:
- *Width = (UINT8) sizeof (UINT16);
- return (UINT16)OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, Ftw);
-
- case SOFT_DEBUGGER_REGISTER_FP_OPCODE:
- *Width = (UINT8) sizeof (UINT16);
- return (UINT16)OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, Opcode);
-
- case SOFT_DEBUGGER_REGISTER_FP_EIP:
- *Width = (UINT8) sizeof (UINTN);
- return (UINT16)OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, Eip);
-
- case SOFT_DEBUGGER_REGISTER_FP_CS:
- *Width = (UINT8) sizeof (UINT16);
- return (UINT16)OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, Cs);
-
- case SOFT_DEBUGGER_REGISTER_FP_DATAOFFSET:
- *Width = (UINT8) sizeof (UINTN);
- return (UINT16)OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, DataOffset);
-
- case SOFT_DEBUGGER_REGISTER_FP_DS:
- *Width = (UINT8) sizeof (UINT16);
- return (UINT16)OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, Ds);
-
- case SOFT_DEBUGGER_REGISTER_FP_MXCSR:
- *Width = (UINT8) sizeof (UINTN);
- return (UINT16)OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, Mxcsr);
-
- case SOFT_DEBUGGER_REGISTER_FP_MXCSR_MASK:
- *Width = (UINT8) sizeof (UINTN);
- return (UINT16)OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, Mxcsr_Mask);
- }
- }
-
- if (Index < SOFT_DEBUGGER_REGISTER_XMM0) {
- *Width = 10;
- } else if (Index < SOFT_DEBUGGER_REGISTER_MM0 ) {
- *Width = 16;
- } else {
- *Width = 8;
- Index -= SOFT_DEBUGGER_REGISTER_MM0 - SOFT_DEBUGGER_REGISTER_ST0;
- }
-
- return (UINT16)(OFFSET_OF(DEBUG_DATA_IA32_FX_SAVE_STATE, St0Mm0) + (Index - SOFT_DEBUGGER_REGISTER_ST0) * 16);
-}
-
-/**
- Write specified register into save CPU context.
-
- @param[in] CpuContext Pointer to saved CPU context.
- @param[in] Index Register index value.
- @param[in] Offset Offset in register address range.
- @param[in] Width Data width to read.
- @param[in] RegisterBuffer Pointer to input buffer with data.
-
-**/
-VOID
-ArchWriteRegisterBuffer (
- IN DEBUG_CPU_CONTEXT *CpuContext,
- IN UINT8 Index,
- IN UINT8 Offset,
- IN UINT8 Width,
- IN UINT8 *RegisterBuffer
- )
-{
- UINT8 *Buffer;
- if (Index < SOFT_DEBUGGER_REGISTER_FP_BASE) {
- Buffer = (UINT8 *) CpuContext + sizeof (DEBUG_DATA_IA32_FX_SAVE_STATE) + Index * 4;
- } else {
- //
- // If it is MMX register, adjust its index position
- //
- if (Index >= SOFT_DEBUGGER_REGISTER_MM0) {
- Index -= SOFT_DEBUGGER_REGISTER_MM0 - SOFT_DEBUGGER_REGISTER_ST0;
- }
- //
- // FPU/MMX/XMM registers
- //
- Buffer = (UINT8 *) CpuContext + ArchReadFxStatOffset (Index, &Width);
- }
-
- CopyMem (Buffer + Offset, RegisterBuffer, Width);
-}
-
-/**
- Read register value from saved CPU context.
-
- @param[in] CpuContext Pointer to saved CPU context.
- @param[in] Index Register index value.
- @param[in] Offset Offset in register address range
- @param[in] Width Data width to read.
-
- @return The address of register value.
-
-**/
-UINT8 *
-ArchReadRegisterBuffer (
- IN DEBUG_CPU_CONTEXT *CpuContext,
- IN UINT8 Index,
- IN UINT8 Offset,
- IN UINT8 *Width
- )
-{
- UINT8 *Buffer;
-
- if (Index < SOFT_DEBUGGER_REGISTER_FP_BASE) {
- Buffer = (UINT8 *) CpuContext + sizeof (DEBUG_DATA_IA32_FX_SAVE_STATE) + Index * 4;
- if (*Width == 0) {
- *Width = (UINT8) sizeof (UINTN);
- }
- } else {
- //
- // FPU/MMX/XMM registers
- //
- Buffer = (UINT8 *) CpuContext + ArchReadFxStatOffset (Index, Width);
- }
-
- return Buffer;
-}
-
-/**
- Read group register of common registers.
-
- @param[in] CpuContext Pointer to saved CPU context.
- @param[in] RegisterGroup Pointer to Group registers.
-
-**/
-VOID
-ReadRegisterGroup (
- IN DEBUG_CPU_CONTEXT *CpuContext,
- IN DEBUG_DATA_REPONSE_READ_REGISTER_GROUP *RegisterGroup
- )
-{
- RegisterGroup->Cs = (UINT16) CpuContext->Cs;
- RegisterGroup->Ds = (UINT16) CpuContext->Ds;
- RegisterGroup->Es = (UINT16) CpuContext->Es;
- RegisterGroup->Fs = (UINT16) CpuContext->Fs;
- RegisterGroup->Gs = (UINT16) CpuContext->Gs;
- RegisterGroup->Ss = (UINT16) CpuContext->Ss;
- RegisterGroup->Eflags = CpuContext->Eflags;
- RegisterGroup->Ebp = CpuContext->Ebp;
- RegisterGroup->Eip = CpuContext->Eip;
- RegisterGroup->Esp = CpuContext->Esp;
- RegisterGroup->Eax = CpuContext->Eax;
- RegisterGroup->Ebx = CpuContext->Ebx;
- RegisterGroup->Ecx = CpuContext->Ecx;
- RegisterGroup->Edx = CpuContext->Edx;
- RegisterGroup->Esi = CpuContext->Esi;
- RegisterGroup->Edi = CpuContext->Edi;
- RegisterGroup->Dr0 = CpuContext->Dr0;
- RegisterGroup->Dr1 = CpuContext->Dr1;
- RegisterGroup->Dr2 = CpuContext->Dr2;
- RegisterGroup->Dr3 = CpuContext->Dr3;
- RegisterGroup->Dr6 = CpuContext->Dr6;
- RegisterGroup->Dr7 = CpuContext->Dr7;
-}
-
-/**
Initialize IDT entries to support source level debug.
**/
@@ -237,6 +55,11 @@ InitializeDebugIdt (
InterruptHandler = (UINTN) &TimerInterruptHandle;
IdtEntry[DEBUG_TIMER_VECTOR].Bits.OffsetLow = (UINT16)(UINTN)InterruptHandler;
IdtEntry[DEBUG_TIMER_VECTOR].Bits.OffsetHigh = (UINT16)((UINTN)InterruptHandler >> 16);
- IdtEntry[Index].Bits.Selector = CodeSegment;
- IdtEntry[Index].Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
+ IdtEntry[DEBUG_TIMER_VECTOR].Bits.Selector = CodeSegment;
+ IdtEntry[DEBUG_TIMER_VECTOR].Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
+
+ //
+ // Set DE flag in CR4 to enable IO breakpoint
+ //
+ AsmWriteCr4 (AsmReadCr4 () | BIT3);
}
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