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-rw-r--r--MdePkg/Include/Protocol/SmmCpuIo2.h87
1 files changed, 13 insertions, 74 deletions
diff --git a/MdePkg/Include/Protocol/SmmCpuIo2.h b/MdePkg/Include/Protocol/SmmCpuIo2.h
index b580faf3cb55d..b9d12bca74ef4 100644
--- a/MdePkg/Include/Protocol/SmmCpuIo2.h
+++ b/MdePkg/Include/Protocol/SmmCpuIo2.h
@@ -3,93 +3,32 @@
This protocol provides CPU I/O and memory access within SMM.
- Copyright (c) 2009 - 2010, 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.
+ Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _SMM_CPU_IO2_H_
#define _SMM_CPU_IO2_H_
-#define EFI_SMM_CPU_IO2_PROTOCOL_GUID \
- { \
- 0x3242A9D8, 0xCE70, 0x4AA0, { 0x95, 0x5D, 0x5E, 0x7B, 0x14, 0x0D, 0xE4, 0xD2 } \
- }
+#include <Protocol/MmCpuIo.h>
+
+#define EFI_SMM_CPU_IO2_PROTOCOL_GUID EFI_MM_CPU_IO_PROTOCOL_GUID
-typedef struct _EFI_SMM_CPU_IO2_PROTOCOL EFI_SMM_CPU_IO2_PROTOCOL;
+typedef EFI_MM_CPU_IO_PROTOCOL EFI_SMM_CPU_IO2_PROTOCOL;
///
/// Width of the SMM CPU I/O operations
///
-typedef enum {
- SMM_IO_UINT8 = 0,
- SMM_IO_UINT16 = 1,
- SMM_IO_UINT32 = 2,
- SMM_IO_UINT64 = 3
-} EFI_SMM_IO_WIDTH;
-
-/**
- Provides the basic memory and I/O interfaces used toabstract accesses to devices.
+#define SMM_IO_UINT8 MM_IO_UINT8
+#define SMM_IO_UINT16 MM_IO_UINT16
+#define SMM_IO_UINT32 MM_IO_UINT32
+#define SMM_IO_UINT64 MM_IO_UINT64
- The I/O operations are carried out exactly as requested. The caller is
- responsible for any alignment and I/O width issues that the bus, device,
- platform, or type of I/O might require.
+typedef EFI_MM_IO_WIDTH EFI_SMM_IO_WIDTH;
+typedef EFI_MM_CPU_IO EFI_SMM_CPU_IO2;
- @param[in] This The EFI_SMM_CPU_IO2_PROTOCOL instance.
- @param[in] Width Signifies the width of the I/O operations.
- @param[in] Address The base address of the I/O operations. The caller is
- responsible for aligning the Address if required.
- @param[in] Count The number of I/O operations to perform.
- @param[in,out] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- from which to write data.
-
- @retval EFI_SUCCESS The data was read from or written to the device.
- @retval EFI_UNSUPPORTED The Address is not valid for this system.
- @retval EFI_INVALID_PARAMETER Width or Count, or both, were invalid.
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack
- of resources.
-**/
-typedef
-EFI_STATUS
-(EFIAPI *EFI_SMM_CPU_IO2)(
- IN CONST EFI_SMM_CPU_IO2_PROTOCOL *This,
- IN EFI_SMM_IO_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- );
-
-typedef struct {
- ///
- /// This service provides the various modalities of memory and I/O read.
- ///
- EFI_SMM_CPU_IO2 Read;
- ///
- /// This service provides the various modalities of memory and I/O write.
- ///
- EFI_SMM_CPU_IO2 Write;
-} EFI_SMM_IO_ACCESS2;
-
-///
-/// SMM CPU I/O Protocol provides CPU I/O and memory access within SMM.
-///
-struct _EFI_SMM_CPU_IO2_PROTOCOL {
- ///
- /// Allows reads and writes to memory-mapped I/O space.
- ///
- EFI_SMM_IO_ACCESS2 Mem;
- ///
- /// Allows reads and writes to I/O space.
- ///
- EFI_SMM_IO_ACCESS2 Io;
-};
+typedef EFI_MM_IO_ACCESS EFI_SMM_IO_ACCESS2;
extern EFI_GUID gEfiSmmCpuIo2ProtocolGuid;