diff options
Diffstat (limited to 'MdeModulePkg/Universal/Acpi')
| -rw-r--r-- | MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/X64/SetIdtEntry.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/X64/SetIdtEntry.c b/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/X64/SetIdtEntry.c index 54ea20a..a8944e6 100644 --- a/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/X64/SetIdtEntry.c +++ b/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/X64/SetIdtEntry.c @@ -3,7 +3,7 @@ Set a IDT entry for interrupt vector 3 for debug purpose for x64 platform
-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2013, 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
@@ -48,6 +48,7 @@ HookPageFaultHandler ( {
UINT32 RegEax;
UINT32 RegEdx;
+ UINTN PageFaultHandlerHookAddress;
AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);
mPhyMask = LShiftU64 (1, (UINT8)RegEax) - 1;
@@ -67,13 +68,14 @@ HookPageFaultHandler ( //
// Set Page Fault entry to catch >4G access
//
+ PageFaultHandlerHookAddress = (UINTN)PageFaultHandlerHook;
mOriginalHandler = (VOID *)(UINTN)(LShiftU64 (IdtEntry->Bits.OffsetUpper, 32) + IdtEntry->Bits.OffsetLow + (IdtEntry->Bits.OffsetHigh << 16));
- IdtEntry->Bits.OffsetLow = (UINT16)((UINTN)PageFaultHandlerHook);
+ IdtEntry->Bits.OffsetLow = (UINT16)PageFaultHandlerHookAddress;
IdtEntry->Bits.Selector = (UINT16)AsmReadCs ();
IdtEntry->Bits.Reserved_0 = 0;
IdtEntry->Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
- IdtEntry->Bits.OffsetHigh = (UINT16)((UINTN)PageFaultHandlerHook >> 16);
- IdtEntry->Bits.OffsetUpper = (UINT32)((UINTN)PageFaultHandlerHook >> 32);
+ IdtEntry->Bits.OffsetHigh = (UINT16)(PageFaultHandlerHookAddress >> 16);
+ IdtEntry->Bits.OffsetUpper = (UINT32)(PageFaultHandlerHookAddress >> 32);
IdtEntry->Bits.Reserved_1 = 0;
if (mPage1GSupport) {
|