diff options
Diffstat (limited to 'MdeModulePkg/MdeModulePkg.dec')
| -rw-r--r-- | MdeModulePkg/MdeModulePkg.dec | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec index 4d89a57254..e3f46006c9 100644 --- a/MdeModulePkg/MdeModulePkg.dec +++ b/MdeModulePkg/MdeModulePkg.dec @@ -1261,6 +1261,28 @@ # @Prompt Flag to request system reboot after processing capsule.
gEfiMdeModulePkgTokenSpaceGuid.PcdSystemRebootAfterCapsuleProcessFlag|0x0001|UINT16|0x0000006d
+ ## Publish PropertiesTable or not.
+ #
+ # If this PCD is TRUE, DxeCore publishs PropertiesTable.
+ # DxeCore evaluates if all runtime drivers has 4K aligned PE sections. If all
+ # PE sections in runtime drivers are 4K aligned, DxeCore sets BIT0 in
+ # PropertiesTable. Or DxeCore clears BIT0 in PropertiesTable.
+ # If this PCD is FALSE, DxeCore does not publish PropertiesTable.
+ #
+ # If PropertiesTable has BIT0 set, DxeCore uses below policy in UEFI memory map:
+ # 1) Use EfiRuntimeServicesCode for runtime driver PE image code section and
+ # use EfiRuntimeServicesData for runtime driver PE image header and other section.
+ # 2) Set EfiRuntimeServicesCode to be EFI_MEMORY_RO.
+ # 3) Set EfiRuntimeServicesData to be EFI_MEMORY_XP.
+ # 4) Set EfiMemoryMappedIO and EfiMemoryMappedIOPortSpace to be EFI_MEMORY_XP.
+ #
+ # NOTE: Platform need gurantee this PCD is set correctly. Platform should set
+ # this PCD to be TURE if and only if all runtime driver has seperated Code/Data
+ # section. If PE code/data sections are merged, the result is unpredictable.
+ #
+ # @Prompt Publish UEFI PropertiesTable.
+ gEfiMdeModulePkgTokenSpaceGuid.PropertiesTableEnable|TRUE|BOOLEAN|0x0000006e
+
## Default OEM ID for ACPI table creation, its length must be 0x6 bytes to follow ACPI specification.
# @Prompt Default OEM ID for ACPI table creation.
gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultOemId|"INTEL "|VOID*|0x30001034
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