diff options
| author | Jiewen Yao <jiewen.yao@intel.com> | 2017-03-15 17:23:01 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2017-07-12 11:24:30 +0800 |
| commit | 773b599c2d033180abed1bc5c4fe20098b2a7068 (patch) | |
| tree | bfff2a515d90d6187d6e9bf69e1eaed56096a8b1 /MdePkg | |
| parent | 5a8e3a191e750524ca53f82490659cd78e170281 (diff) | |
| download | edk2-platforms-773b599c2d033180abed1bc5c4fe20098b2a7068.tar.xz | |
MdePkg/SmmIoLib: Add header file.
This SmmIoLib is used to check if an IO resource
is valid in SMM.
Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Include/Library/SmmIoLib.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/SmmIoLib.h b/MdePkg/Include/Library/SmmIoLib.h new file mode 100644 index 0000000000..7820f1ec10 --- /dev/null +++ b/MdePkg/Include/Library/SmmIoLib.h @@ -0,0 +1,42 @@ +/** @file
+ Provides services for SMM IO Operation.
+
+ The SMM IO Library provides function for checking if IO resource is accessible inside of SMM.
+
+ Copyright (c) 2017, 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.
+
+**/
+
+#ifndef _SMM_IO_LIB_H_
+#define _SMM_IO_LIB_H_
+
+/**
+ This function check if the MMIO resource is valid per processor architecture and
+ valid per platform design.
+
+ @param BaseAddress The MMIO start address to be checked.
+ @param Length The MMIO length to be checked.
+ @param Owner A GUID representing the owner of the resource.
+ This GUID may be used by producer to correlate the device ownership of the resource.
+ NULL means no specific owner.
+
+ @retval TRUE This MMIO resource is valid per processor architecture and valid per platform design.
+ @retval FALSE This MMIO resource is not valid per processor architecture or valid per platform design.
+**/
+BOOLEAN
+EFIAPI
+SmmIsMmioValid (
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length,
+ IN EFI_GUID *Owner OPTIONAL
+ );
+
+#endif
+
|