-typedef struct _EFI_CPU_IO_PROTOCOL EFI_CPU_IO_PROTOCOL;\r
-\r
-///\r
-/// Enumeration that defines the width of the I/O operation.\r
-///\r
-typedef enum {\r
- EfiCpuIoWidthUint8,\r
- EfiCpuIoWidthUint16,\r
- EfiCpuIoWidthUint32,\r
- EfiCpuIoWidthUint64,\r
- EfiCpuIoWidthFifoUint8,\r
- EfiCpuIoWidthFifoUint16,\r
- EfiCpuIoWidthFifoUint32,\r
- EfiCpuIoWidthFifoUint64,\r
- EfiCpuIoWidthFillUint8,\r
- EfiCpuIoWidthFillUint16,\r
- EfiCpuIoWidthFillUint32,\r
- EfiCpuIoWidthFillUint64,\r
- EfiCpuIoWidthMaximum\r
-} EFI_CPU_IO_PROTOCOL_WIDTH;\r
-\r
-/**\r
- Enables a driver to access memory-mapped registers in the EFI system memory space.\r
- Or, enables a driver to access registers in the EFI CPU I/O space.\r
-\r
- @param[in] This A pointer to the EFI_CPU_IO_PROTOCOL instance.\r
- @param[in] Width Signifies the width of the I/O or Memory operation.\r
- @param[in] Address The base address of the I/O or Memory operation.\r
- @param[in] Count The number of I/O or Memory operations to perform.\r
- The number of bytes moved is Width size * Count, starting at Address.\r
- @param[in, out] Buffer For read operations, the destination buffer to store the results.\r
- For write operations, the source buffer from which to write data.\r
-\r
- @retval EFI_SUCCESS The data was read from or written to the EFI system.\r
- @retval EFI_INVALID_PARAMETER Width is invalid for this EFI system. Or Buffer is NULL.\r
- @retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.\r
- Or,The address range specified by Address, Width, and Count is not valid for this EFI system.\r
-\r
-**/\r
-typedef\r
-EFI_STATUS\r
-(EFIAPI *EFI_CPU_IO_PROTOCOL_IO_MEM)(\r
- IN EFI_CPU_IO_PROTOCOL *This,\r
- IN EFI_CPU_IO_PROTOCOL_WIDTH Width,\r
- IN UINT64 Address,\r
- IN UINTN Count,\r
- IN OUT VOID *Buffer\r
- );\r
-\r
-///\r
-/// Service for read and write accesses.\r
-///\r
-typedef struct {\r
- ///\r
- /// This service provides the various modalities of memory and I/O read.\r
- ///\r
- EFI_CPU_IO_PROTOCOL_IO_MEM Read;\r
- ///\r
- /// This service provides the various modalities of memory and I/O write.\r
- ///\r
- EFI_CPU_IO_PROTOCOL_IO_MEM Write;\r
-} EFI_CPU_IO_PROTOCOL_ACCESS;\r
-\r
-///\r
-/// Provides the basic memory and I/O interfaces that are used to abstract\r
-/// accesses to devices in a system.\r
-///\r
-struct _EFI_CPU_IO_PROTOCOL {\r
- ///\r
- /// Enables a driver to access memory-mapped registers in the EFI system memory space.\r
- ///\r
- EFI_CPU_IO_PROTOCOL_ACCESS Mem;\r
- ///\r
- /// Enables a driver to access registers in the EFI CPU I/O space.\r
- ///\r
- EFI_CPU_IO_PROTOCOL_ACCESS Io;\r
-};\r
+//\r
+// Framework CPU IO protocol structure is the same as CPU IO 2 protocol defined in PI 1.2 spec. \r
+// However, there is a significant different between the Framework CPU I/O\r
+// Protocol and the PI 1.2 CPU I/O 2 Protocol. The Framework one is a runtime\r
+// protocol, which means it can be used by runtime drivers after ExitBootServices().\r
+// The PI one is not runtime safe, so it is a boot services only protocol and may\r
+// not be used by runtime drivers after ExitBootServices().\r
+// \r
+typedef EFI_CPU_IO2_PROTOCOL EFI_CPU_IO_PROTOCOL;\r