MdeModulePkg: Add PCD PcdPteMemoryEncryptionAddressOrMask

This PCD holds the address mask for page table entries when memory
encryption is enabled on AMD processors supporting the Secure Encrypted
Virtualization (SEV) feature.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Leo Duran <leo.duran@amd.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 10f46081891550b3f427b6ca569c46cff135320b..356b3e1119d169d07903c4efd6ab775717aa034d 100644 (file)
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -6,6 +6,8 @@
 # Copyright (c) 2007 - 2017, Intel Corporation. All rights reserved.<BR>\r
 # Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>\r
 # (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r
 # Copyright (c) 2007 - 2017, Intel Corporation. All rights reserved.<BR>\r
 # Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>\r
 # (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r

+# Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>\r
+#\r

 # This program and the accompanying materials are licensed and made available under\r
 # the terms and conditions of the BSD License that accompanies this distribution.\r
 # The full text of the license may be found at\r
 # This program and the accompanying materials are licensed and made available under\r
 # the terms and conditions of the BSD License that accompanies this distribution.\r
 # The full text of the license may be found at\r


@@ -1734,6 +1736,12 @@
   # @Prompt A list of system FMP ImageTypeId GUIDs\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdSystemFmpCapsuleImageTypeIdGuid|{0x0}|VOID*|0x30001046\r
 \r
   # @Prompt A list of system FMP ImageTypeId GUIDs\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdSystemFmpCapsuleImageTypeIdGuid|{0x0}|VOID*|0x30001046\r
 \r

+  ## This PCD holds the address mask for page table entries when memory encryption is\r
+  #  enabled on AMD processors supporting the Secure Encrypted Virtualization (SEV) feature.\r
+  #  This mask should be applied when creating 1:1 virtual to physical mapping tables.\r
+  #\r
+  gEfiMdeModulePkgTokenSpaceGuid.PcdPteMemoryEncryptionAddressOrMask|0x0|UINT64|0x30001047\r
+\r

 [PcdsPatchableInModule]\r
   ## Specify memory size with page number for PEI code when\r
   #  Loading Module at Fixed Address feature is enabled.\r
 [PcdsPatchableInModule]\r
   ## Specify memory size with page number for PEI code when\r
   #  Loading Module at Fixed Address feature is enabled.\r