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Create 4G page table by default, and using PF to handle >4G MMIO access, to improve S3 performance.

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signed-off-by: jiewen.yao@intel.com
reviewed-by: rui.sun@intel.com

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13631 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jyao1
2012-08-14 04:42:50 +00:00
parent 743094a289
commit d0bf562330
6 changed files with 276 additions and 8 deletions
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4
MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/IA32/SetIdtEntry.c
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@@ -3,7 +3,7 @@
Set a IDT entry for interrupt vector 3 for debug purpose for IA32 platform
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 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
@@ -54,7 +54,7 @@ SetIdtEntry (
S3DebugBuffer = (UINTN) (AcpiS3Context->S3DebugBufferAddress);
IdtEntry->OffsetLow = (UINT16)S3DebugBuffer;
IdtEntry->SegmentSelector = (UINT16)AsmReadCs ();;
IdtEntry->SegmentSelector = (UINT16)AsmReadCs ();
IdtEntry->Attributes = (UINT16)INTERRUPT_GATE_ATTRIBUTE;
IdtEntry->OffsetHigh = (UINT16)(S3DebugBuffer >> 16);