X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=UefiCpuPkg%2FPiSmmCpuDxeSmm%2FPiSmmCpuDxeSmm.c;h=6c6d742c95383e3e064b974176837b17e75a8985;hp=282d2e69817c2a4f9f0caecf38bfd9ebf514f9fc;hb=af4f4b3468aa239c61418ff899bfd239eae57b2d;hpb=235a4490c8ce8b6dbac49e6ae3559cb73d6bf620

diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
index 282d2e6981..6c6d742c95 100755
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
@@ -76,6 +76,15 @@ EFI_SMM_CPU_PROTOCOL  mSmmCpu  = {
   SmmWriteSaveState
 };
 
+///
+/// SMM Memory Attribute Protocol instance
+///
+EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL  mSmmMemoryAttribute  = {
+  EdkiiSmmGetMemoryAttributes,
+  EdkiiSmmSetMemoryAttributes,
+  EdkiiSmmClearMemoryAttributes
+};
+
 EFI_CPU_INTERRUPT_HANDLER   mExternalVectorTable[EXCEPTION_VECTOR_NUMBER];
 
 //
@@ -893,6 +902,17 @@ PiCpuSmmEntry (
                     );
   ASSERT_EFI_ERROR (Status);
 
+  //
+  // Install the SMM Memory Attribute Protocol into SMM protocol database
+  //
+  Status = gSmst->SmmInstallProtocolInterface (
+                    &mSmmCpuHandle,
+                    &gEdkiiSmmMemoryAttributeProtocolGuid,
+                    EFI_NATIVE_INTERFACE,
+                    &mSmmMemoryAttribute
+                    );
+  ASSERT_EFI_ERROR (Status);
+
   //
   // Expose address of CPU Hot Plug Data structure if CPU hot plug is supported.
   //