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diff --git a/EDK/Foundation/Efi/Protocol/PciIo/PciIo.h b/EDK/Foundation/Efi/Protocol/PciIo/PciIo.h
new file mode 100644
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+++ b/EDK/Foundation/Efi/Protocol/PciIo/PciIo.h
@@ -0,0 +1,275 @@
+/*++
+
+Copyright (c) 2004 - 2006, Intel Corporation                                                         
+All rights reserved. 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.             
+
+Module Name:
+
+    PciIo.h
+    
+Abstract:
+
+    EFI PCI I/O Protocol
+
+Revision History
+
+--*/
+
+#ifndef _EFI_PCI_IO_H
+#define _EFI_PCI_IO_H
+
+//
+// Global ID for the PCI I/O Protocol
+//
+#define EFI_PCI_IO_PROTOCOL_GUID \
+  { \
+    0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x2, 0x9a \
+  }
+
+EFI_FORWARD_DECLARATION (EFI_PCI_IO_PROTOCOL);
+
+//
+// Prototypes for the PCI I/O Protocol
+//
+typedef enum {
+  EfiPciIoWidthUint8      = 0,
+  EfiPciIoWidthUint16,
+  EfiPciIoWidthUint32,
+  EfiPciIoWidthUint64,
+  EfiPciIoWidthFifoUint8,
+  EfiPciIoWidthFifoUint16,
+  EfiPciIoWidthFifoUint32,
+  EfiPciIoWidthFifoUint64,
+  EfiPciIoWidthFillUint8,
+  EfiPciIoWidthFillUint16,
+  EfiPciIoWidthFillUint32,
+  EfiPciIoWidthFillUint64,
+  EfiPciIoWidthMaximum
+} EFI_PCI_IO_PROTOCOL_WIDTH;
+
+//
+// Complete PCI address generater
+//
+#define EFI_PCI_IO_PASS_THROUGH_BAR               0xff    // Special BAR that passes a memory or I/O cycle through unchanged
+#define EFI_PCI_IO_ATTRIBUTE_MASK                 0x077f  // All the following I/O and Memory cycles
+#define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO   0x0001  // I/O cycles 0x0000-0x00FF (10 bit decode)
+#define EFI_PCI_IO_ATTRIBUTE_ISA_IO               0x0002  // I/O cycles 0x0000-0x03FF (10 bit decode)
+#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO       0x0004  // I/O cycles 0x3C6, 0x3C8, 0x3C9 (10 bit decode)
+#define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY           0x0008  // MEM cycles 0xA0000-0xBFFFF (24 bit decode)
+#define EFI_PCI_IO_ATTRIBUTE_VGA_IO               0x0010  // I/O cycles 0x3B0-0x3BB and 0x3C0-0x3DF (10 bit decode)
+#define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO       0x0020  // I/O cycles 0x1F0-0x1F7, 0x3F6, 0x3F7 (10 bit decode)
+#define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO     0x0040  // I/O cycles 0x170-0x177, 0x376, 0x377 (10 bit decode)
+#define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080  // Map a memory range so write are combined
+#define EFI_PCI_IO_ATTRIBUTE_IO                   0x0100  // Enable the I/O decode bit in the PCI Config Header
+#define EFI_PCI_IO_ATTRIBUTE_MEMORY               0x0200  // Enable the Memory decode bit in the PCI Config Header
+#define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER           0x0400  // Enable the DMA bit in the PCI Config Header
+#define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED        0x0800  // Map a memory range so all r/w accesses are cached
+#define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE       0x1000  // Disable a memory range
+#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE      0x2000  // Clear for an add-in PCI Device
+#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM         0x4000  // Clear for a physical PCI Option ROM accessed through ROM BAR
+#define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE   0x8000  // Clear for PCI controllers that can not genrate a DAC
+//
+// The following definition is added in EFI1.1 spec update and UEFI2.0 spec.
+//
+#define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16            0x10000 // I/O cycles 0x0100-0x03FF (16 bit decode)
+#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16    0x20000 // I/O cycles 0x3C6, 0x3C8, 0x3C9 (16 bit decode)
+#define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16            0x40000 // I/O cycles 0x3B0-0x3BB and 0x3C0-0x3DF (16 bit decode)
+
+#define EFI_PCI_DEVICE_ENABLE                     (EFI_PCI_IO_ATTRIBUTE_IO | EFI_PCI_IO_ATTRIBUTE_MEMORY | EFI_PCI_IO_ATTRIBUTE_BUS_MASTER)
+#define EFI_VGA_DEVICE_ENABLE                     (EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO | EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY | EFI_PCI_IO_ATTRIBUTE_VGA_IO | EFI_PCI_IO_ATTRIBUTE_IO)
+
+//
+// *******************************************************
+// EFI_PCI_IO_PROTOCOL_OPERATION
+// *******************************************************
+//
+typedef enum {
+  EfiPciIoOperationBusMasterRead,
+  EfiPciIoOperationBusMasterWrite,
+  EfiPciIoOperationBusMasterCommonBuffer,
+  EfiPciIoOperationMaximum
+} EFI_PCI_IO_PROTOCOL_OPERATION;
+
+//
+// *******************************************************
+// EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION
+// *******************************************************
+//
+typedef enum {
+  EfiPciIoAttributeOperationGet,
+  EfiPciIoAttributeOperationSet,
+  EfiPciIoAttributeOperationEnable,
+  EfiPciIoAttributeOperationDisable,
+  EfiPciIoAttributeOperationSupported,
+  EfiPciIoAttributeOperationMaximum
+} EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_POLL_IO_MEM) (
+  IN EFI_PCI_IO_PROTOCOL           * This,
+  IN  EFI_PCI_IO_PROTOCOL_WIDTH    Width,
+  IN  UINT8                        BarIndex,
+  IN  UINT64                       Offset,
+  IN  UINT64                       Mask,
+  IN  UINT64                       Value,
+  IN  UINT64                       Delay,
+  OUT UINT64                       *Result
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_IO_MEM) (
+  IN EFI_PCI_IO_PROTOCOL              * This,
+  IN     EFI_PCI_IO_PROTOCOL_WIDTH    Width,
+  IN     UINT8                        BarIndex,
+  IN     UINT64                       Offset,
+  IN     UINTN                        Count,
+  IN OUT VOID                         *Buffer
+  );
+
+typedef struct {
+  EFI_PCI_IO_PROTOCOL_IO_MEM  Read;
+  EFI_PCI_IO_PROTOCOL_IO_MEM  Write;
+} EFI_PCI_IO_PROTOCOL_ACCESS;
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_CONFIG) (
+  IN EFI_PCI_IO_PROTOCOL              * This,
+  IN     EFI_PCI_IO_PROTOCOL_WIDTH    Width,
+  IN     UINT32                       Offset,
+  IN     UINTN                        Count,
+  IN OUT VOID                         *Buffer
+  );
+
+typedef struct {
+  EFI_PCI_IO_PROTOCOL_CONFIG  Read;
+  EFI_PCI_IO_PROTOCOL_CONFIG  Write;
+} EFI_PCI_IO_PROTOCOL_CONFIG_ACCESS;
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_COPY_MEM) (
+  IN EFI_PCI_IO_PROTOCOL              * This,
+  IN     EFI_PCI_IO_PROTOCOL_WIDTH    Width,
+  IN     UINT8                        DestBarIndex,
+  IN     UINT64                       DestOffset,
+  IN     UINT8                        SrcBarIndex,
+  IN     UINT64                       SrcOffset,
+  IN     UINTN                        Count
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_MAP) (
+  IN EFI_PCI_IO_PROTOCOL                * This,
+  IN     EFI_PCI_IO_PROTOCOL_OPERATION  Operation,
+  IN     VOID                           *HostAddress,
+  IN OUT UINTN                          *NumberOfBytes,
+  OUT    EFI_PHYSICAL_ADDRESS           * DeviceAddress,
+  OUT    VOID                           **Mapping
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_UNMAP) (
+  IN EFI_PCI_IO_PROTOCOL           * This,
+  IN  VOID                         *Mapping
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_ALLOCATE_BUFFER) (
+  IN EFI_PCI_IO_PROTOCOL           * This,
+  IN  EFI_ALLOCATE_TYPE            Type,
+  IN  EFI_MEMORY_TYPE              MemoryType,
+  IN  UINTN                        Pages,
+  OUT VOID                         **HostAddress,
+  IN  UINT64                       Attributes
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_FREE_BUFFER) (
+  IN EFI_PCI_IO_PROTOCOL           * This,
+  IN  UINTN                        Pages,
+  IN  VOID                         *HostAddress
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_FLUSH) (
+  IN EFI_PCI_IO_PROTOCOL  * This
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_GET_LOCATION) (
+  IN EFI_PCI_IO_PROTOCOL          * This,
+  OUT UINTN                       *SegmentNumber,
+  OUT UINTN                       *BusNumber,
+  OUT UINTN                       *DeviceNumber,
+  OUT UINTN                       *FunctionNumber
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_ATTRIBUTES) (
+  IN EFI_PCI_IO_PROTOCOL                       * This,
+  IN  EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION  Operation,
+  IN  UINT64                                   Attributes,
+  OUT UINT64                                   *Result OPTIONAL
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_GET_BAR_ATTRIBUTES) (
+  IN EFI_PCI_IO_PROTOCOL             * This,
+  IN  UINT8                          BarIndex,
+  OUT UINT64                         *Supports, OPTIONAL
+  OUT VOID                           **Resources OPTIONAL
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PCI_IO_PROTOCOL_SET_BAR_ATTRIBUTES) (
+  IN EFI_PCI_IO_PROTOCOL              * This,
+  IN     UINT64                       Attributes,
+  IN     UINT8                        BarIndex,
+  IN OUT UINT64                       *Offset,
+  IN OUT UINT64                       *Length
+  );
+
+//
+// Interface structure for the PCI I/O Protocol
+//
+typedef struct _EFI_PCI_IO_PROTOCOL {
+  EFI_PCI_IO_PROTOCOL_POLL_IO_MEM         PollMem;
+  EFI_PCI_IO_PROTOCOL_POLL_IO_MEM         PollIo;
+  EFI_PCI_IO_PROTOCOL_ACCESS              Mem;
+  EFI_PCI_IO_PROTOCOL_ACCESS              Io;
+  EFI_PCI_IO_PROTOCOL_CONFIG_ACCESS       Pci;
+  EFI_PCI_IO_PROTOCOL_COPY_MEM            CopyMem;
+  EFI_PCI_IO_PROTOCOL_MAP                 Map;
+  EFI_PCI_IO_PROTOCOL_UNMAP               Unmap;
+  EFI_PCI_IO_PROTOCOL_ALLOCATE_BUFFER     AllocateBuffer;
+  EFI_PCI_IO_PROTOCOL_FREE_BUFFER         FreeBuffer;
+  EFI_PCI_IO_PROTOCOL_FLUSH               Flush;
+  EFI_PCI_IO_PROTOCOL_GET_LOCATION        GetLocation;
+  EFI_PCI_IO_PROTOCOL_ATTRIBUTES          Attributes;
+  EFI_PCI_IO_PROTOCOL_GET_BAR_ATTRIBUTES  GetBarAttributes;
+  EFI_PCI_IO_PROTOCOL_SET_BAR_ATTRIBUTES  SetBarAttributes;
+  UINT64                                  RomSize;
+  VOID                                    *RomImage;
+} EFI_PCI_IO_PROTOCOL;
+
+extern EFI_GUID gEfiPciIoProtocolGuid;
+
+#endif