[PATCH edk2-platforms 3/3] Platform/ARM/SgiPkg: Enable MmCommunication module on the platform

[Sughosh Ganu <sughosh.ganu@arm.com>]

The ArmMmCommunication module is used for communication between
non-secure and secure world using Arm's Management Mode
Specification. Enable this module on Sgi platforms. This would be used
subsequently by the RAS and SecureBoot features, support for which
is to be added on the platform..

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com>
---
 Platform/ARM/SgiPkg/SgiPlatform.dsc | 20 ++++++++++++++++++++
 Platform/ARM/SgiPkg/SgiPlatform.fdf |  5 +++++
 2 files changed, 25 insertions(+)

diff --git a/Platform/ARM/SgiPkg/SgiPlatform.dsc b/Platform/ARM/SgiPkg/SgiPlatform.dsc
index 19d2ac3a656a..44f769947d53 100644
--- a/Platform/ARM/SgiPkg/SgiPlatform.dsc
+++ b/Platform/ARM/SgiPkg/SgiPlatform.dsc
@@ -185,6 +185,22 @@ [PcdsFixedAtBuild.common]
   # Ethernet
   gEmbeddedTokenSpaceGuid.PcdLan91xDxeBaseAddress|0x18000000
 
+!if $(ARM_STANDALONE_MM_ENABLE) == TRUE
+  #
+  # Set the base address and size of the buffer used
+  # for communication between the Normal world edk2
+  # with StandaloneMm image at S-EL0 through MM_COMMUNICATE.
+  # This buffer gets allocated in ATF and since we do not have
+  # a mechanism currently to communicate the base address and
+  # size of this buffer from ATF, hard-code it here
+  #
+
+  ## MM Communicate
+  gArmTokenSpaceGuid.PcdMmBufferBase|0xFF600000
+  gArmTokenSpaceGuid.PcdMmBufferSize|0x10000
+
+!endif
+
 ################################################################################
 #
 # Components Section - list of all EDK II Modules needed by this Platform
@@ -316,3 +332,7 @@ [Components.common]
   # SATA Controller
   #
   MdeModulePkg/Bus/Pci/SataControllerDxe/SataControllerDxe.inf
+
+!if $(ARM_STANDALONE_MM_ENABLE) == TRUE
+  ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.inf
+!endif
diff --git a/Platform/ARM/SgiPkg/SgiPlatform.fdf b/Platform/ARM/SgiPkg/SgiPlatform.fdf
index 9c0ec1fa43a6..4145bc50ea04 100644
--- a/Platform/ARM/SgiPkg/SgiPlatform.fdf
+++ b/Platform/ARM/SgiPkg/SgiPlatform.fdf
@@ -169,6 +169,11 @@ [FV.FvMain]
   #
   INF  ShellPkg/Application/Shell/Shell.inf
 
+!if $(ARM_STANDALONE_MM_ENABLE) == TRUE
+  # MM Communicate
+  INF ArmPkg/Drivers/MmCommunicationDxe/MmCommunication.inf
+!endif
+
   #
   # Platform driver
   #
-- 
2.7.4