[edk2-devel] [PATCH 3/4] MdeModulePkg/DxeIpl: Introduce PCD PcdUse5LevelPageTable
Ni, Ray
ray.ni at intel.com
Mon Jul 22 08:15:46 UTC 2019
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2008
The PCD indicates if 5-Level Paging will be enabled in long mode.
5-Level Paging will not be enabled when the PCD is TRUE but CPU
doesn't support 5-Level Paging.
Signed-off-by: Ray Ni <ray.ni at intel.com>
Cc: Eric Dong <eric.dong at intel.com>
Cc: Laszlo Ersek <lersek at redhat.com>
---
MdeModulePkg/MdeModulePkg.dec | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 12e0bbf579..21388595a9 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -1991,6 +1991,13 @@ [PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic, PcdsDynamicEx]
# @Prompt The address mask when memory encryption is enabled.
gEfiMdeModulePkgTokenSpaceGuid.PcdPteMemoryEncryptionAddressOrMask|0x0|UINT64|0x30001047
+ ## Indicates if 5-Level Paging will be enabled in long mode. 5-Level Paging will not be enabled
+ # when the PCD is TRUE but CPU doesn't support 5-Level Paging.
+ # TRUE - 5-Level Paging will be enabled.<BR>
+ # FALSE - 5-Level Paging will not be enabled.<BR>
+ # @Prompt Enable 5-Level Paging support in long mode.
+ gEfiMdeModulePkgTokenSpaceGuid.PcdUse5LevelPageTable|FALSE|BOOLEAN|0x0001105F
+
## Capsule In Ram is to use memory to deliver the capsules that will be processed after system
# reset.<BR><BR>
# This PCD indicates if the Capsule In Ram is supported.<BR>
--
2.21.0.windows.1
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