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MdeModulePkg/Universal/CapsulePei: Add support for PCD PcdPteMemoryEncryptionAddressOrMask

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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.

The mask is applied when 4GB tables are created (UefiCapsule.c), and when
the tables are expanded on-demand by page-faults above 4GB's (X64Entry.c).

Cc: Feng Tian <feng.tian@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Leo Duran <leo.duran@amd.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Leo Duran
2017-02-27 01:43:04 +08:00
committed by Star Zeng
parent 5997daf742
commit 89a286ce77
4 changed files with 37 additions and 11 deletions
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2
MdeModulePkg/Universal/CapsulePei/CapsulePei.inf
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@@ -7,6 +7,7 @@
# buffer overflow, integer overflow.
#
# Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions
@@ -76,6 +77,7 @@
[Pcd.IA32]
gEfiMdeModulePkgTokenSpaceGuid.PcdCapsuleCoalesceFile ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdPteMemoryEncryptionAddressOrMask ## CONSUMES
[FeaturePcd.IA32]
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode ## CONSUMES