/** @file | |
This code abstracts the CPU IO Protocol which installed by some platform or chipset-specific | |
PEIM that abstracts the processor-visible I/O operations. | |
Note: This is a runtime protocol and can be used by runtime drivers after ExitBootServices(). | |
It is different from the PI 1.2 CPU I/O 2 Protocol, which is a boot services only protocol | |
and may not be used by runtime drivers after ExitBootServices(). | |
Copyright (c) 2007 - 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 that 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. | |
@par Revision Reference: | |
CPU IO Protocol is defined in Framework of EFI CPU IO Protocol Spec | |
Version 0.9. | |
**/ | |
#ifndef _CPUIO_H_ | |
#define _CPUIO_H_ | |
#include <Protocol/CpuIo2.h> | |
#define EFI_CPU_IO_PROTOCOL_GUID \ | |
{ \ | |
0xB0732526, 0x38C8, 0x4b40, {0x88, 0x77, 0x61, 0xC7, 0xB0, 0x6A, 0xAC, 0x45 } \ | |
} | |
// | |
// Framework CPU IO protocol structure is the same as CPU IO 2 protocol defined in PI 1.2 spec. | |
// However, there is a significant different between the Framework CPU I/O | |
// Protocol and the PI 1.2 CPU I/O 2 Protocol. The Framework one is a runtime | |
// protocol, which means it can be used by runtime drivers after ExitBootServices(). | |
// The PI one is not runtime safe, so it is a boot services only protocol and may | |
// not be used by runtime drivers after ExitBootServices(). | |
// | |
typedef EFI_CPU_IO2_PROTOCOL EFI_CPU_IO_PROTOCOL; | |
extern EFI_GUID gEfiCpuIoProtocolGuid; | |
#endif |