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From: Jiewen Yao <jiewen.yao@intel.com>
To: edk2-devel@lists.01.org
Cc: Jeff Fan <jeff.fan@intel.com>, Liming Gao <liming.gao@intel.com>
Subject: [PATCH 1/4] MdePkg/SmmIoLib: Add header file.
Date: Fri, 21 Apr 2017 23:49:50 +0800	[thread overview]
Message-ID: <1492789793-22624-2-git-send-email-jiewen.yao@intel.com> (raw)
In-Reply-To: <1492789793-22624-1-git-send-email-jiewen.yao@intel.com>

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>
---
 MdePkg/Include/Library/SmmIoLib.h | 42 ++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/MdePkg/Include/Library/SmmIoLib.h b/MdePkg/Include/Library/SmmIoLib.h
new file mode 100644
index 0000000..7820f1e
--- /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
+
-- 
2.7.4.windows.1



  reply	other threads:[~2017-04-21 15:49 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-21 15:49 [PATCH 0/4] Add SmmIoLib Jiewen Yao
2017-04-21 15:49 ` Jiewen Yao [this message]
2017-04-21 15:49 ` [PATCH 2/4] MdePkg/SmmIoLib: Add sample instance Jiewen Yao
2017-04-24  2:02   ` Fan, Jeff
2017-04-24  3:00     ` Yao, Jiewen
2017-04-21 15:49 ` [PATCH 3/4] MdePkg/dec: Add SmmIoLib Jiewen Yao
2017-04-21 15:49 ` [PATCH 4/4] MdePkg/dsc: add SmmIoLib Jiewen Yao

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