[PATCH v4 5/5] StandaloneMmPkg: Add StandaloneMmIplPei driver.

["Zhang, Hongbin1" <hongbin1.zhang@intel.com>]

Add StandaloneMmIplPei IA32/X64 driver at PEI stage.
FSP will use this driver to load Standalone MM code
to dispatch other Standalone MM drivers.

Signed-off-by: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
---
 StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.c b/StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.c
index 0d0c678f90..78939faeea 100644
--- a/StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.c
+++ b/StandaloneMmPkg/Drivers/StandaloneMmIplPei/StandaloneMmIplPei.c
@@ -626,5 +626,16 @@ StandaloneMmIplPeiEntry (
     DEBUG ((DEBUG_ERROR, "SMM IPL could not find a large enough SMRAM region to load SMM Core\n"));
   }
 
+  //
+  // Close and lock all SMRAM ranges.
+  //
+  for (Index = 0; Index < mSmramRangeCount; Index++) {
+    Status = mSmmAccess->Close ((EFI_PEI_SERVICES **)PeiServices, mSmmAccess, Index);
+    ASSERT_EFI_ERROR (Status);
+
+    Status = mSmmAccess->Lock ((EFI_PEI_SERVICES **)PeiServices, mSmmAccess, Index);
+    ASSERT_EFI_ERROR (Status);
+  }
+
   return EFI_SUCCESS;
 }
-- 
2.37.0.windows.1